WO2020063923A1 - 信号传输方法、相关设备及系统 - Google Patents

信号传输方法、相关设备及系统 Download PDF

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Publication number
WO2020063923A1
WO2020063923A1 PCT/CN2019/108759 CN2019108759W WO2020063923A1 WO 2020063923 A1 WO2020063923 A1 WO 2020063923A1 CN 2019108759 W CN2019108759 W CN 2019108759W WO 2020063923 A1 WO2020063923 A1 WO 2020063923A1
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WO
WIPO (PCT)
Prior art keywords
power control
uplink
terminal
control parameters
panel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/108759
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English (en)
French (fr)
Inventor
张荻
刘显达
刘建琴
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP19868017.5A priority Critical patent/EP3860230B1/en
Publication of WO2020063923A1 publication Critical patent/WO2020063923A1/zh
Priority to US17/213,473 priority patent/US11716691B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0691—Hybrid systems, i.e. switching and simultaneous transmission using subgroups of transmit antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a signal transmission method, related equipment, and a system.
  • high frequency can provide more spectrum resources, support more antennas, and improve system capacity.
  • NR new radio access technology
  • HF high frequency
  • the wavelength of wireless signals becomes shorter accordingly. Short wavelengths can reduce the size of the antennas at both ends of the transceiver. Multiple antennas can be easily integrated into a panel with limited space.
  • multi-antenna beam forming technology transmitting signal energy is collected in a certain direction for transmission, which can effectively improve coverage and then improve communication performance.
  • the receiver can form a receiving beam with directivity, and achieve a high-gain reception of a wireless signal arriving in a certain spatial direction.
  • multiple antenna arrays can be more easily combined with the chip to form an antenna panel or antenna array, which makes it possible to configure multiple low-correlation antenna panels (or antenna arrays) in the transmitter. become possible.
  • Multiple antenna panels can form a transmitting beam independently, so that a transmitter can send data streams through different beams to improve transmission capacity or reliability.
  • Uplink power control is the key to the entire wireless communication transmission system. On the one hand, it is necessary to meet sufficient transmission energy per bit required to achieve the quality of service (QoS), and on the other hand, to minimize interference to other users of the system. In order to achieve these goals, the uplink power control must adapt to the characteristics of the wireless propagation channel.
  • QoS quality of service
  • UE user equipment
  • open-loop power control the base station transmits a downlink reference signal with a fixed power and informs the UE of the transmit power through SIB2.
  • the UE estimates the downlink path loss (PL) based on the received reference signal strength and considers that the uplink path loss is equivalent.
  • the base station passes SIB2 informs the UE of its desired received power (P0), and the UE sets the transmit power according to P0 and PL.
  • the receiving end obtains a closed-loop power control command (TPC, Transmit Power Control) by comparing the actual received signal-to-noise ratio (SINR) with the target value, and feeds it back to the transmitting end through the PDCCH.
  • TPC Transmit Power Control
  • SINR the actual received signal-to-noise ratio
  • the sender is instructed to reduce the power
  • the SINR is lower than the target value
  • the sender is instructed to increase the power.
  • the UE is just turned on, the channel between the UE and the TRP that has not yet been established will use open loop power control. With the successful establishment of the dialogue channel, closed-loop power control began to play a role.
  • UE-side power control is concentrated on the channels transmitted by multiple uplink carriers, and is controlled through power coordination between carriers.
  • a UE has only one Antenna port / beam
  • a UE can have multiple antenna panels, corresponding to multiple Antenna ports / beams, and for different antenna panel transmissions on the same UE
  • the power control of the signal on the UE side is not covered by the existing protocol content.
  • This application provides a signal transmission method, related equipment, and system, which are suitable for uplink power control of multi-panel terminals.
  • the present application provides a signal transmission method applied to a terminal.
  • the method may include: the terminal receives configuration information, and the configuration information may be indicated as M uplink signal resources or uplink signal resource sets (uplink resource / resource). set) of N power control parameters configured; M ⁇ 1, M is a positive integer, N> 1, and N is a positive integer.
  • the terminal transmits uplink signals on the M uplink signal resources or uplink signal resource sets, and the transmit power of the uplink signals on the M uplink signal resources or uplink signal resource sets is determined according to the first power control parameter.
  • the first power control parameter From these N sets of power control parameters.
  • the present application provides a signal transmission method applied to a network device side.
  • the method may include: the network device sends configuration information to a terminal, and the configuration information may be indicated as M uplink signal resource or uplink signal resource set configuration. N sets of power control parameters.
  • the network device receives the uplink signal sent by the terminal on the M uplink signal resources or the uplink signal resource set.
  • the terminal has L antenna panels, and the N sets of power control parameters are configured based on the K antenna panels of the terminal; M ⁇ 1, M is a positive integer, N> 1, N is a positive integer, 2 ⁇ K ⁇ L, K and L are both positive integers.
  • each uplink / resource / resource set of the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • each uplink / resource / resource set in the M uplink / resource / set is associated with the N sets of power control parameters, which means that each of the uplink / resource / resource set in the M uplink / resource / resource set corresponds to the power control parameter Can be selected from N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of each uplink / resource / resource set of the M uplink / resource / resource sets.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • the association of the at least one uplink resource / resource set with the N sets of power control parameters means that the respective power control parameters corresponding to the at least one uplink resource / resource set can be selected from the N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of at least one uplink resource / resource set.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with at least two power control parameters among the N power control parameters.
  • the association of the at least one uplink resource / resource set with the at least one set of power control parameters means that the respective power control parameters corresponding to the at least one uplink resource / resource set can be selected from the at least one set of power control parameters.
  • the at least one set of power control parameters is a candidate power control parameter of the at least one uplink resource / resource set.
  • the solutions described in the first aspect and the second aspect consider multiple transmission paths corresponding to multiple panels of the terminal, and configure multiple sets of power control parameters for M uplink / resource / resource sets.
  • the terminal can flexibly determine which set or sets of power control parameters to use based on spatial information or other information (such as panel switch instructions or panel ID information or transmission methods), which can achieve more flexible adjustment of uplink transmit power. , Can maximize the power efficiency of uplink transmission and uplink transmission performance.
  • the power control parameter may include one or more of the following: a target received power of an uplink signal, a path loss compensation factor, and a path loss reference signal.
  • the target received power P0 refers to the minimum signal strength that the network device can demodulate the uplink signal, or the received power when the network device expects to receive the uplink signal
  • the path loss compensation factor alpha / ⁇ means that the network device uses this compensation factor to Determines the weight of the path loss in uplink power control
  • the path loss reference signal pathloss RS refers to the terminal inferring the downlink path loss (PL) based on the strength of the reference signal received for estimating the path loss and considers that the uplink path loss is equivalent .
  • the power control parameters may include three items: the target received power of the uplink signal, the path loss compensation factor, and the path loss reference signal.
  • the power control parameter may include the target received power of the uplink signal and the path loss reference signal.
  • the configuration information sent by the network device to the terminal may indicate a mapping between a panel and a power control parameter.
  • the configuration information sent by the network device to the terminal may also indicate only N sets of power control parameters, and the mapping between the N sets of power control parameters and the panel may follow a preset A mapping rule, which is known by the terminal.
  • configuring N sets of power control parameters for M uplink resources / resource sets may specifically be:
  • M 1.
  • an SRS resource set no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple SRS resource sets can also be bound together, and N sets of power control parameters can be configured for these multiple SRS resource sets, at this time M> 1.
  • the configuration of N sets of power control parameters for these multiple SRS resource sets can include the following situations:
  • the power control parameters corresponding to each of the multiple SRS resource sets can be selected from N sets of power control parameters.
  • At least one SRS resource set corresponding to each of the multiple SRS resource sets can be selected from N sets of power control parameters.
  • At least one SRS resource set corresponding to each of the multiple SRS resource sets may have a power control parameter corresponding to at least two power control parameters selected from the N power control parameters.
  • one PUSCH resource does not only correspond to one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple PUSCH resources can also be bound together, and N sets of power control parameters can be configured for these multiple PUSCH resources, where M> 1.
  • configuring N sets of power control parameters for these multiple PUSCH resources can include the following situations:
  • the power control parameter corresponding to each PUSCH resource in the multiple PUSCH resources can be selected from N sets of power control parameters.
  • At least one PUSCH resource of each of the plurality of PUSCH resources can be selected from N sets of power control parameters.
  • At least one PUSCH resource of each of the plurality of PUSCH resources can have a power control parameter corresponding to at least two sets of power control parameters among N sets of power control parameters.
  • one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resource sets, and one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resources.
  • a PUCCH resource list or resource list no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • the specific implementation of configuring N sets of power control parameters for the M uplink / resource / resource sets can be similar to the description of the above 1-3, and is not repeated here.
  • the N sets of power control parameters may include: power control parameters for transmitting uplink signals using a single antenna panel on M uplink signal resources or uplink signal resource sets, and / Or, power control parameters for transmitting uplink signals by using multiple antenna panels on M uplink signal resources or uplink signal resource sets.
  • the manner of configuring the N sets of power control parameters may include the following manners:
  • Q ⁇ 1 Q is a positive integer.
  • K panels refer to multiple panels of the terminal, K ⁇ L, L represents the number of panels of the terminal.
  • N sets of power control parameters can be configured for the M uplink, resource / resource sets according to the transmission mode, and one transmission mode can correspond to one or more sets of power control parameters.
  • the transmission mode may include one or more of single-panel transmission, multi-panel transmission, single-station transmission, and multi-station transmission.
  • the multi-panel transmission may specifically include: double-panel transmission, three-panel transmission, four-panel transmission, and the like.
  • Single-site transmission may include DPS (dynamic point switching) transmission mode; multi-station transmission mainly describes coordinated multipoint transmission / reception (CoMP), where CoMP may include non-coherent joint transmission (NCJT) , Coherent joint transmission (CJT), joint transmission (JT), and so on.
  • CoMP may include non-coherent joint transmission (NCJT) , Coherent joint transmission (CJT), joint transmission (JT), and so on.
  • one set of power control parameters is used when a single panel is used to transmit uplink signals
  • the other set of power control parameters is used when multiple panels are used to transmit uplink signals.
  • Method 3 Similar to method 1, but does not configure power control parameters for multi-panel transmission of uplink signals
  • the power control parameters used when at least two panels transmit uplink signals include the power control parameters used when the at least two panels transmit uplink signals separately.
  • the power control parameters used when multiple panels transmit uplink signals are multiplexed with the power control parameters used when the single panels corresponding to the multiple panels transmit uplink signals.
  • the power control parameters used when multiple panels transmit uplink signals may also be matched with a scaling factor to ensure that the total transmit power of each panel does not exceed the maximum transmission power of the terminal.
  • K panels refer to multiple panels of the terminal, K ⁇ L, L represents the number of panels of the terminal.
  • the manner of determining the first power control parameter may include:
  • Method 1 Determine a first power control parameter based on an implicit indication of a network device
  • the network device can send M uplink / resource / resource set spatial information to the terminal.
  • the terminal may receive the spatial relationship information sent by the network device.
  • the spatial / relation information of an uplink resource / resource set indicates that the reference signal and the uplink signal carried by the uplink resource / resource set have the same spatial characteristic parameters.
  • the reference signal indicated by the spatial relation information may include SRS, CSI-RS, and the like.
  • the terminal may determine the first power control parameter based on the spatial relationship information.
  • the terminal determining the first power control parameter based on the spatial relationship information may include the following implementations:
  • the first power control parameter may be determined according to a panel used by reference signals indicated by the spatial information of the M uplink, resource / resource set.
  • the first power control parameter may be based on the resource or resource set or resource group (resource / resource set / resource group) to which the reference signal indicated by the spatial information of the uplink / resource / resource set indicates. determine.
  • the first power control parameter may be determined according to the number of reference signals indicated by the spatial relationship information of the M uplink / resource / resource sets.
  • Method 2 Determine the first power control parameter based on the display instruction of the network device
  • the network device may send one or more of the following indication information to the terminal: switch instruction information of the antenna panel, identification information (panel ID) of the antenna panel, or indication information of an uplink signal transmission mode.
  • the terminal may receive the instruction information sent by the network device.
  • the uplink signal transmission method may include a single panel to transmit an uplink signal and a multi-panel to transmit an uplink signal. These information directly indicate the number of panels or panels that the terminal should use to transmit uplink signals on the M uplink / resource / resource sets.
  • the terminal can determine a first power control parameter to be used for uplink signal transmission according to one or more of these pieces of information. That is, the terminal can determine which set or sets of power control parameters to use based on the explicit instructions of the network device.
  • the switch indication information of the antenna panel can indicate which panels are enabled or disabled. If the switch indication information indicates which panels are closed, the opened panels are terminal panels other than the closed panels.
  • the first power control parameter is the power control parameter corresponding to the panel that is turned on in the N sets of power control parameters.
  • the switch indication information of the antenna panel may be multiple bits, one of which corresponds to a panel, indicating whether the panel is turned on or off. In practical applications, there may be other ways to implement the switch indication information, which is not limited in this application.
  • the panel indicated by the identification information (panel ID) of the antenna panel is the panel that the terminal should use for transmitting uplink signals on the M uplink / resource / resource sets.
  • the first power control parameter is the power control parameter corresponding to the panel indicated by the identification information in the N sets of power control parameters.
  • the implementation manner of determining the first power control parameter by using the indication information of the transmission mode of the uplink signal is applicable to the foregoing manner 2 of configuring N sets of power control parameters.
  • the first power control parameter is the set of power control parameters corresponding to the transmission mode of the uplink signal.
  • the reference signal indicated by the high-level parameter such as SRS or CSI-RS
  • the reference signal indicated by the spatial relationship information mentioned in this application may also include: uplink for non-codebook non-coodebook transmission
  • a reference signal such as a CSI-RS
  • a resource / resource set such as a non-codebook used SRS resource set
  • the reference signal associated with uplink / resource / resource set used for non-codebook non-coodebook transmission refers to a QCL relationship or spatial correlation with the uplink signal carried by uplink / resource / resource set used for non-cobookbook non-codebook transmission.
  • the reference signal for the relationship is not limited to the reference signal indicated by the high-level parameter (such as SRS or CSI-RS)
  • single-panel transmission means that the terminal device uses one panel to transmit one or more uplink signals within the first time unit.
  • Multi-panel transmission means that the terminal device uses at least two panels to transmit one or more uplink signals in the first time unit.
  • the multiple uplink signals at least partially overlap in time.
  • the first time unit may be one or more symbols, one or more slots, one or more subframes, and the like.
  • the present application provides a signal transmission method, which is applied to a terminal side, and the method may include: if M antenna signal panels or uplink signal resource sets are used to transmit uplink signals using H antenna panels of the terminal, and The sum of the respective first transmit powers of the H antenna panels determined by the power control parameters corresponding to the H antenna panels is greater than the maximum transmit power of the terminal, then the terminal may determine that each of the H antenna panels has at least one antenna panel. Corresponding second transmit power. On M uplink signal resources or uplink signal resource sets, the terminal may use the at least one antenna panel to transmit the uplink signal based on the second transmit power corresponding to each of the at least one antenna panel. The sum of the respective second transmission powers of the at least one antenna panel is less than or equal to the maximum transmission power of the terminal. H ⁇ 2, H is a positive integer.
  • the present application provides a signal transmission method applied to a network device side.
  • the method may include: the network device sends configuration information to a terminal, where the configuration information indicates power control parameters configured for H uplink signals; H ⁇ 2 H is a positive integer; H uplink signals are carried in the first time unit; the sum of the respective first transmit powers of the H uplink signals determined based on the power control parameters of the respective H uplink signals is greater than the maximum transmit power of the terminal.
  • the network device receives at least one uplink signal among the H uplink signals in the first time unit, and the sum of the second transmit powers corresponding to the at least one uplink signal is less than or equal to the maximum transmission power of the terminal, and the second corresponding to the at least one uplink signal
  • the transmission power is determined according to the channel quality information of the reference signals related to the H uplink signals.
  • the configuration information may specifically indicate power control parameters configured for the M uplink / resource / resource sets.
  • the power control parameters configured for the M uplink / resource / resource sets may include power control parameters configured for the H uplink signals.
  • the M uplink / resource / resource sets can be configured with multiple sets of power control parameters (refer to Scheme 1), or can be configured with only one set of power control parameters.
  • the M uplink / resource sets can be configured with multiple sets of power control parameters, that is, the N sets of power configured in the scheme described in the first and second aspects. Control parameters.
  • the power control parameters corresponding to each of the H antenna panels are N sets of power control parameters.
  • the transmit power can be allocated to the uplink signals corresponding to each panel by the following methods:
  • the terminal can determine the power used by the terminal to transmit H uplink signals based on the implicit indication (i.e., spatial information) or display indication (i.e., the switch indication information of the panel, panel ID, etc.) of the network device
  • the control parameter is the first power control parameter mentioned in the foregoing solution 1.
  • the terminal may determine the first transmit power corresponding to each of the H uplink signals according to the first power control parameter.
  • the terminal may allocate transmission power to uplink signals corresponding to uplink signals with smaller path loss according to the path losses associated with each uplink signal.
  • the uplink signal with a smaller path loss is assigned power in preference to the uplink signal with a larger path loss.
  • the terminal can perform at least one round of power allocation. among them:
  • the uplink signal with the smallest current path loss among the uplink signals from which the second transmit power has not been determined can be expressed as S i-minPL .
  • the actual transmit power allocated to S i-minPL may be min ⁇ P ′ i , Pmax ⁇ .
  • the actual transmit power, i.e. S i-minPL corresponding to S i-minPL second transmit power, Pmax of the maximum transmission power of the terminal indicates, min represents a minimum value.
  • P ir represents the transmission power remaining after excluding the transmission power allocated in the previous i-1 round from the maximum transmission power of the terminal.
  • P ′ i represents the first transmission power corresponding to S i-minPL .
  • the power allocation in the i-th round can be expressed by the following algorithm:
  • P i represents the second transmission power corresponding to Si -minPL
  • P ′ i represents the first transmission power corresponding to Si -minPL
  • Pmax represents the maximum transmission power of the terminal
  • Pr is the maximum transmission power of the terminal.
  • S i-minPL means the antenna panel with the second path power that has not been determined with the smallest path loss in the i- th round of power allocation .
  • the path loss associated with the uplink signal transmitted by each panel can be calculated according to the reference signal used to estimate the path loss corresponding to the uplink signal transmitted by each panel.
  • the M uplink / resource / resource sets can be configured with only one set of power control parameters.
  • the power control parameters corresponding to the H uplink signals are all the same set of power control parameters.
  • the terminal can determine the first transmit power corresponding to the uplink signal transmitted by each of the H panels according to this set of power control parameters, but each panel needs to be considered The corresponding path loss is different.
  • the first transmit power corresponding to the uplink signals transmitted by the H antenna panels can be determined based on the following parameters:
  • This set of power control parameters includes the target received power p0 of the uplink signals, the path loss compensation factor alpha, and The path loss measured by the reference signal indicated by the spatial separation information of the uplink signals transmitted by the panels.
  • the terminal can also preferentially allocate transmit power to the uplink signal corresponding to the uplink signal with a smaller path loss according to the path loss associated with each uplink signal.
  • the terminal can also preferentially allocate transmit power to the uplink signal corresponding to the uplink signal with a smaller path loss according to the path loss associated with each uplink signal.
  • the M uplink / resource / resource sets are configured with N sets of power control parameters, and details are not described herein again.
  • the number of panels may be determined by one or more of the following: the number of spatial information of the uplink / resource / set, and the information of the spatial information The number of reference signals and the resource or resource set or resource group to which the reference signal indicated by the spatial information (such as the SRS used for beam training) belongs.
  • the path loss related to the uplink signal transmitted by each panel may be calculated according to the reference signal used to estimate the path loss corresponding to the uplink signal transmitted by each panel.
  • the reference signal corresponding to the uplink signal transmitted by a panel and used to estimate the path loss may be a reference signal indicated by the uplink signal spatial information.
  • the reference signal for estimating the path loss corresponding to the uplink signal transmitted by a panel may be a path loss reference signal included in a power control parameter corresponding to the uplink signal transmitted by the panel.
  • the solutions described in the third aspect and the fourth aspect allocate transmission power to uplink signals corresponding to panels with smaller PLs first, and the transmission quality of transmission paths with smaller PLs can be guaranteed, which can improve system robustness and stability.
  • a terminal including multiple functional units, for correspondingly executing the method provided in any one of the possible implementation manners of the first aspect.
  • a network device including a plurality of functional units, for correspondingly executing the method provided in any one of the possible implementation manners of the second aspect.
  • a terminal including multiple functional units, for correspondingly executing the method provided by any one of the possible implementation manners of the third aspect.
  • a network device including multiple functional units, for correspondingly executing the method provided in any one of the possible implementation manners of the fourth aspect.
  • a terminal for performing the signal transmission method described in the first aspect.
  • the terminal may include a memory and a processor, a transmitter, and a receiver coupled to the memory, wherein the transmitter is configured to send a signal to another wireless communication device, such as a network device, and the receiver is configured to: Receiving a signal sent by the another wireless communication device, such as a network device, the memory used to store the implementation code of the signal transmission method described in the first aspect, and the processor used to execute the program code stored in the memory, That is, the signal transmission method described in any one of the possible implementation manners of the first aspect is performed.
  • a network device for performing the signal transmission method described in the second aspect.
  • the network device may include a memory and a processor, a transmitter, and a receiver coupled to the memory, wherein the transmitter is configured to send a signal to another wireless communication device, such as a terminal, and the receiver is configured to: Receive a signal sent by the another wireless communication device, such as a terminal, the memory is used to store the implementation code of the signal transmission method described in the second aspect, and the processor is used to execute the program code stored in the memory, that is, The signal transmission method described in any one of the possible implementation manners of the second aspect is performed.
  • a terminal for performing the signal transmission method described in the third aspect.
  • the terminal may include a memory and a processor, a transmitter, and a receiver coupled to the memory, wherein the transmitter is configured to send a signal to another wireless communication device, such as a network device, and the receiver is configured to: Receiving a signal sent by the another wireless communication device, such as a network device, the memory used to store the implementation code of the signal transmission method described in the third aspect, and the processor used to execute the program code stored in the memory, That is, the signal transmission method described in any one of the possible implementation manners of the third aspect is performed.
  • a network device for performing the signal transmission method described in the fourth aspect.
  • the network device may include a memory and a processor, a transmitter, and a receiver coupled to the memory, wherein the transmitter is configured to send a signal to another wireless communication device, such as a terminal, and the receiver is configured to: Receive a signal sent by the another wireless communication device, such as a terminal, the memory is used to store the implementation code of the signal transmission method described in the fourth aspect, and the processor is used to execute the program code stored in the memory, that is, The signal transmission method described in any one of the possible implementation manners of the fourth aspect is performed.
  • a communication system includes a network device and a terminal, where the network device may be the terminal described in the first aspect.
  • the terminal may be the network device described in the second aspect.
  • a communication system in a fourteenth aspect, includes a network device and a terminal, where the network device may be the terminal described in the third aspect.
  • the terminal may be the network device described in the fourth aspect.
  • a computer-readable storage medium where instructions are stored on the readable storage medium, which, when run on a computer, causes the computer to execute the first aspect, or the second aspect, or the foregoing.
  • a computer program product containing instructions which when executed on a computer, causes the computer to execute the first aspect, the second aspect, or the third aspect, or the fourth aspect. Describe the signal transmission method.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided by the present application.
  • FIG. 2 is a schematic diagram of an SRS-ResourceSet IE defined in an existing protocol
  • FIG. 3 is a schematic diagram of a PUSCH-PowerControl IE defined in an existing protocol
  • 4A-4B are schematic diagrams of PUCCH-Config IE and PUCCH-PowerControl IE defined in the existing protocol;
  • FIG. 5 is a schematic flowchart of a signal transmission method provided by the present application.
  • FIG. 6 is a schematic diagram of several panels used in the present application when transmitting SRS on an SRS resource
  • FIG. 7A is a schematic diagram of an SRS resource set using two panels in the present application.
  • FIG. 7B is a schematic diagram of another SRS resource set using two panels in the present application.
  • FIG. 7C is a schematic diagram of another SRS resource set using two panels in this application.
  • FIG. 9 is a schematic diagram of a hardware architecture of a terminal device according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a hardware architecture of a network device according to an embodiment of the present application.
  • FIG. 11 is a functional block diagram of a wireless communication system, a terminal, and a network device provided by the present application;
  • FIG. 12 is a schematic structural diagram of a processor provided by the present application.
  • FIG. 1 shows a wireless communication system 100 according to the present application.
  • the wireless communication system 100 can work in a high-frequency band, not limited to a Long Term Evolution (LTE) system, but also a fifth generation mobile communication (the 5th Generation, 5G) system, a new air interface (NR) system, and a machine. Machine to Machine (Machine, M2M) system, future communication systems, such as the sixth generation mobile communication system.
  • LTE Long Term Evolution
  • 5G fifth generation
  • NR new air interface
  • M2M Machine to Machine
  • future communication systems such as the sixth generation mobile communication system.
  • the wireless communication system 100 may include: one or more network devices 101, one or more terminals 103, and a core network (not shown). among them:
  • the network device 101 may be a base station, and the base station may be used to communicate with one or more terminals, and may also be used to communicate with one or more base stations with partial terminal functions (such as a macro base station and a micro base station, such as an access point, Communication).
  • the base station can be a base transceiver station (BTS) in a Time Division Division Synchronous Code Division Multiple Access (TD-SCDMA) system, or an evolutionary base station (Evolutional Node B in an LTE system). , ENB), and base stations in 5G systems and New Air Interface (NR) systems.
  • the base station may also be a transmission point (Reception Point, TRP), an access point (Access Point, AP), a central unit (CU), or other network entities, and may include the functions of the above network entities.
  • the terminals 103 may be distributed throughout the wireless communication system 100, and may be stationary or mobile.
  • the terminal 103 may be a user equipment (UE), a mobile device, a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, or a terminal agent. , Mobile clients, and more.
  • the wireless communication system 100 is a multi-beam communication system. among them:
  • the network device 101 is configured with a plurality of antenna panels 105, and one antenna panel 105 includes a plurality of antenna elements 107.
  • the terminal 103 is provided with a plurality of antenna panels 105, and one antenna panel 105 includes a plurality of antenna elements 107.
  • the number of antenna panels 105 configured on the network device 101 and the number of antenna panels 105 configured on the terminal 103 may be different or the same.
  • the number of antenna elements 107 included in a single antenna panel 105 of the network device 101 and the number of antenna elements 107 included in a single antenna panel 105 of the terminal 103 may be different or the same.
  • multiple antenna panels of the network device 101 or terminal 103 can exhibit low correlation, and multiple antenna panels can independently form a transmission beam, so that a transmitter of the network device 101 or terminal 103 can pass Different transmit beams send data streams.
  • This application will mainly discuss power control for uplink signal transmission in the wireless communication system 100.
  • the power control of the uplink signal transmission is the key of the entire wireless communication system. On the one hand, it needs to achieve sufficient transmission energy per bit required to meet the quality of service (QoS), and on the other hand, it must minimize the interference to other users of the system. In order to achieve these goals, the uplink power control must adapt to the characteristics of the wireless propagation channel.
  • QoS quality of service
  • 3gpp 38.331 R15 version 3gpp 38.213 R15 version for uplink signals, such as sounding reference signal (SRS), physical uplink shared channel (PUSCH), physical uplink control channel (physical uplink, control channel, PUCCH), etc., and prescribed power control.
  • SRS sounding reference signal
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • Figure 2 shows the SRS-ResourceSet field in the SRS-config IE defined in the existing protocol 3gpp 38.331 R15 version.
  • the power allocation method of the SRS is that the reference signals in each SRS resource set share the same set of power control parameters.
  • the power control parameters include: alpha, p0, pathlossReferenceRS.
  • alpha represents the path loss compensation factor
  • p0 represents the target received power
  • pathlossReferenceRS represents the reference signal used to estimate the path loss.
  • the existing protocol 3gpp 38.213 R15 version specifies the SRS transmission power, as follows:
  • the SRS transmission power sent by the UE at the SRS transmission opportunity i is P SRS, b, f, c (i, q, l):
  • -P CMAX, f, c (i) is the UE transmission power configured for the carrier f of the serving cell c at the SRS transmission opportunity i.
  • -P O_SRS, b, f, c (q s ) is configured for the uplink BWP b of the carrier f of the serving cell c through the higher layer parameter p0.
  • the SRS resource set q s is configured through high-level parameters SRS-ResourceSet and SRS-ResourceSetId.
  • P O_SRS, b, f, c (q s ) is used to characterize the target received power.
  • -M SRS, b, f, c (i) is the SRS transmission bandwidth configured for the serving cell c and the carrier f uplink BWP b at the SRS transmission opportunity i, and is expressed by the number of resource blocks.
  • - ⁇ SRS, b, f, c (q s ) is configured by the higher layer parameter alpha for the SRS resource set q s of the carrier f uplink BWP b of the serving cell c, and is a path loss compensation factor.
  • the reference signal index q d associated with the SRS resource set q s is the ssb-Index in the high-level parameter pathlossReferenceRS (for indicating the resource index of the SS / PBCH) or the csi-RS-Index in the high-level parameter pathlossReferenceRS (for (Indicates the resource index of the CSI-RS). It is the path loss measurement value of the terminal based on RSRP.
  • each SRS resource set shares a set of power control parameters. That is to say, the transmission power of each reference signal in an SRS resource set is the same.
  • the open loop power control parameters of the SRS are configured through higher layer signaling.
  • the UE uses multiple panels to transmit SRS to multiple panels of one TRP or multiple TRPs, the paths of the multiple panels of the UE are different, and the channel conditions are also different. If the same power control parameters are still used, then power utilization The efficiency is low.
  • the SRS carried by an SRS resource set is transmitted through multiple panels, if each panel adopts the power control parameters specified in the existing protocol, the total transmit power of the multiple panels may exceed the maximum transmit power of the UE.
  • the power allocation of the PUSCH is determined through high-level signaling, or a combination of high-level signaling (RRC) and physical layer signaling (DCI).
  • RRC signaling is configured with open-loop power control parameters
  • DCI indicates closed-loop power control parameters.
  • one PUSCH resource corresponds to only one set of power control parameters.
  • Figure 3 shows the PUSCH-configIE defined in the existing protocol 3gpp 38.331 R15 version, in which the power control parameters of the PUSCH are defined.
  • the power control parameters include: msg3-Alpha, p0-NominalWithoutGrant, P0-PUSCH-AlphaSet, ConfiguredGrantConfig indicates P0-PUSCH-AlphaSetId, PUSCH-PathlossReferenceRS.
  • msg3-Alpha represents the path loss compensation factor
  • p0-NominalWithoutGrant represents the target received power
  • PUSCH-PathlossReferenceRS represents the reference signal used to estimate the path loss.
  • the existing protocol 3gpp 38.213 R15 version specifies the PUSCH transmission power, as follows:
  • the UE determines that the transmission power of PUSCH at transmission opportunity i is P PUSCH, b, f, c (i, j, q d , l):
  • -P CMAX, f, c (i) is the UE transmission power configured for the carrier f of the serving cell c at the PUSCH transmission timing i.
  • -P O_PUSCH, b, f, c (j) is a parameter formed by the sum of members P O_NOMINAL_PUSCH, f, c (j) and members P O_UE_PUSCH, b, f, c (j), where j ⁇ ⁇ 0, 1, ... ,, J-1 ⁇ .
  • It is the bandwidth allocated for the PUSCH resources configured for the serving cell c and the carrier f uplink BWP b at the PUSCH transmission timing i, and is expressed by the number of resource blocks.
  • -PL b, f, c (q d ) is a path loss calculated by the UE through a reference signal index q d on the downlink BWP, and the reference signal is paired with the SRS resource set q s of the carrier f of the serving cell c and the uplink BWP b.
  • the power control parameters of the PUSCH are configured through high-level signaling or a combination of high-level signaling and physical layer signaling, but each PUSCH resource corresponds to only one set of power control parameters.
  • the UE uses multiple panels to transmit PUSCH to multiple panels of one TRP or multiple TRPs, the transmission paths of the multiple panels of the UE are different and the channel conditions are also different. If the same power control parameter is still used, the power Utilization efficiency is low.
  • the total transmit power of the multiple panels may exceed the maximum transmit power of the UE.
  • the PUCCH resource set represented by the high-level parameter resourceSetToAddModList / resourceSetToReleaseList corresponds to a set of power control parameters, that is, one or more PUCCH resource sets included in a PUCCH resource set corresponds to a set of power control parameters.
  • the PUCCH resource list indicated by the high-level parameter resourceToAddModList / resourceToReleaseList corresponds to a set of power control parameters, that is, one or more PUCCH resources included in a PUCCH resource list corresponds to a set of power control parameters.
  • a PUCCH resource list or resource list corresponds to only one set of power control parameters.
  • PUCCH-PowerControl defines power control parameters in IE, including: PO-PUCCH, PUCCH-PathlossReferenceRS.
  • P0-PUCCH represents the target received power
  • PUCCH-PathlossReferenceRS represents the reference signal used to estimate the path loss.
  • the value of the path loss compensation factor can range from 0 to 1. In order to ensure the high reliability of the PUCCH, the transmit power of the PUCCH will be made as large as possible, and the value of the path loss compensation factor can be determined according to the actual situation.
  • the current protocol determines the PUCCH transmit power based on the PUCCH power control parameters similarly to the power control mechanisms of SRS and PUSCH.
  • PUCCH has the same problems as SRS and PUSCH.
  • the existing protocols also define power control mechanisms similar to SRS, PUSCH, and PUCCH for uplink channels such as PRACH.
  • PRACH also has the same problems as SRS, PUSCH, and PUCCH.
  • this application provides a signal transmission method. This will be described in detail below.
  • Spatial Relation information It is used to assist in describing the beamforming information on the transmitting side of the terminal and the transmission process.
  • the SpatialRelation information is used to indicate the spatial reception parameter or spatial transmission parameter relationship between two reference signals or channels.
  • These two types of reference signals or channels include target reference signals or channels, and source reference signals or channels.
  • the target reference signal or channel is an uplink reference signal or channel transmitted by the terminal.
  • DMRS demodulation reference signal
  • SRS sounding reference signal
  • PUSCH PUSCH
  • PUCCH etc .
  • source reference signal or channel a source reference signal or channel.
  • CSI-RS channel state information reference signal
  • SRS sounding reference signal
  • synchronous signal broadcast channel block synchronous signal / PBCH
  • block SS / PBCH block
  • the spatial characteristic parameters of the two reference signals or channels satisfying the SpatialRelation information are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the resource index of the source reference signal.
  • the spatial characteristic parameter includes one or more of the following parameters: an angle of incidence (AoA), a main (Dominant) angle of incidence AoA, an average angle of incidence, and a power angle spectrum of the angle of incidence (power angular spectrum) (PAS), angle of exit (AoD), main angle of exit, average angle of exit, power angle spectrum of angle of exit, terminal transmit beamforming, terminal receive beamforming, spatial channel correlation, base station transmit beamforming, base station Receive beamforming, average channel gain, average channel delay, delay spread, Doppler spread, Doppler shift, spatial Rx parameters), spatial transmission parameters (spatial, Tx, parameters), etc.
  • the terminal may transmit the target reference signal or channel according to the transmission beam information of the source reference signal indicated by the Spatial Relation information.
  • a beam is a communication resource.
  • the beam can be a wide beam, or a narrow beam, or another type of beam.
  • the beam forming technology may be a beam forming technology or other technical means.
  • the beamforming technology may be specifically a digital beamforming technology, an analog beamforming technology, and a hybrid digital / analog beamforming technology. Different beams can be considered as different resources.
  • the same information or different information can be transmitted through different beams.
  • multiple beams having the same or similar communication characteristics may be considered as one beam.
  • a beam may include one or more antenna ports for transmitting data channels, control channels, and detection signals.
  • a transmission beam may refer to a signal intensity distribution in different directions of a space after a signal is transmitted by an antenna.
  • the receiving beam may refer to a signal strength distribution of a wireless signal received from an antenna in different directions in space. It can be understood that one or more antenna ports forming a beam can also be regarded as an antenna port set.
  • Beams can be divided into transmit beams and receive beams of network equipment, and transmit beams and receive beams of terminal equipment.
  • the transmitting beam of the network device is used to describe the beamforming information on the transmitting side of the network device
  • the receiving beam of the base station is used to describe the beamforming information on the receiving side of the network device
  • the transmitting beam of the terminal device is used to describe the beamforming information on the transmitting side of the terminal device.
  • the receiving beam is used to describe the beamforming information on the receiving side of the terminal device. That is, the beam is used to describe the beamforming information.
  • the beam may correspond to time resources and / or space resources and / or frequency domain resources.
  • the beam may also correspond to a reference signal resource (for example, a beamforming reference signal resource) or beamforming information. That is, indicating the beam is equivalent to indicating the reference signal resource or the beamforming information.
  • a reference signal resource for example, a beamforming reference signal resource
  • the beam may also correspond to information associated with reference signal resources, where the reference signals may be CSI-RS, SSB, DMRS, phase tracking reference signal (PTRS), tracking reference signal (tracking reference signal, or CSI-RS (tracking, TRS), SRS, etc.
  • the information associated with the reference signal resource may be a reference signal resource identifier, or QCL information (especially QCL of type D), space-related information, and the like.
  • the reference signal resource identifier corresponds to a transmit / receive beam pair that was previously established during measurement based on the reference signal resource.
  • the terminal can infer beam information. That is to say, the indicating beam is equivalent to indicating the information associated with the reference signal, such as the reference signal resource identifier, or QCL information, space-related information, and so on.
  • the beam may also correspond to a spatial filter (spatial filter / spatial filter) and a spatial transmission filter (spatial filter). That is to say, the indicating beam is equivalent to indicating the airspace filter and the airspace transmission filter.
  • Solution 1 In a scenario where the terminal has L (L> 1, L is a positive integer) panels, it is M (M ⁇ 1, M is a positive integer) uplink signal resources or uplink signal resource set (uplink resource / resource set) Configure N (N> 1, N is a positive integer) set of power control parameters.
  • the N sets of power control parameters are configured based on K (K ⁇ L, K is a positive integer) panel of the terminal. That is to say, there is a mapping relationship between the N sets of power control parameters and multiple panels of the terminal.
  • each uplink / resource / resource set of the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • each uplink / resource / resource set in the M uplink / resource / set is associated with the N sets of power control parameters, which means that each of the uplink / resource / resource set in the M uplink / resource / resource set corresponds to the power control parameter Can be selected from N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of each uplink / resource / resource set of the M uplink / resource / resource sets.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • the association of the at least one uplink resource / resource set with the N sets of power control parameters means that the respective power control parameters corresponding to the at least one uplink resource / resource set can be selected from the N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of at least one uplink resource / resource set.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with at least one of the N power control parameters.
  • the association of the at least one uplink resource / resource set with the at least one set of power control parameters means that the respective power control parameters corresponding to the at least one uplink resource / resource set can be selected from the at least one set of power control parameters.
  • the at least one set of power control parameters is a candidate power control parameter of the at least one uplink resource / resource set.
  • Solution 1 considers multiple transmission paths corresponding to multiple panels of the terminal and configures multiple sets of power control parameters for M uplink / resource / resource sets. In this way, the terminal can flexibly determine which set or sets of power control parameters to use based on spatial information or other downlink information (such as panel switch instructions or panel ID information or transmission methods), which can achieve more flexible uplink transmission power. The adjustment can maximize the power efficiency and performance of uplink transmission. Subsequent content will introduce the specific content of Scheme 1 in detail, and will not repeat them here.
  • Solution 2 In a scenario where multiple panels transmit uplink signals such as SRS / PUCCH / PUSCH, the transmit power is allocated to the uplink signals corresponding to each panel according to the path loss (PL), and the panel with a smaller PL is preferred in particular
  • the corresponding uplink signal is allocated transmit power.
  • the uplink signal corresponding to the panel refers to the uplink signal transmitted by the panel.
  • the power control parameter may include one or more of the following: target received power of an uplink signal, a path loss compensation factor, and a path loss reference signal.
  • the target received power P0 refers to the minimum signal strength that the network device can demodulate the uplink signal, or the received power when the network device expects to receive the uplink signal
  • the path loss compensation factor alpha / ⁇ means that the network device uses this compensation factor to Determines the weight of the path loss in uplink power control
  • the path loss reference signal pathloss RS refers to the terminal inferring the downlink path loss (PL) based on the strength of the received reference signal used to estimate the path loss and considers the uplink path loss to be equivalent .
  • the power control parameters may include three items: target received power of the uplink signal, path loss compensation factor, and path loss reference signal.
  • the power control parameter may include the target received power of the uplink signal and the path loss reference signal.
  • Solution 1 is introduced in detail below. Solution 1 mainly discusses how to configure a power control parameter for transmitting uplink signals for a multi-panel terminal.
  • FIG. 5 shows an overall flowchart of the signal transmission method described in scheme 1, which may include:
  • a network device configures N sets of power control parameters for M uplink / resource / resource sets.
  • the N sets of power control parameters are configured based on multiple panels of the terminal.
  • the plurality of panels may be part or all of the terminal panels, and the number of the plurality of panels is K, K ⁇ L, and K is a positive integer.
  • the terminal may report the number of panels or panels that the terminal has to the network device, or the terminal may report its panel ID or number of panels through the terminal capability parameter.
  • the network device sends configuration information to the terminal.
  • the configuration information indicates that N sets of power control parameters are configured for the M uplink / resource / resource sets.
  • the terminal device receives the configuration information sent by the network device.
  • the configuration information may indicate a mapping between a panel and a power control parameter.
  • the configuration information may only indicate N sets of power control parameters, and the mapping between the N sets of power control parameters and the panel may follow a preset mapping rule, which is known to the terminal.
  • the preset mapping rule may be: power control parameters and panels are sequentially mapped, that is, the first set of power control parameters corresponds to the first panel, the second set of power control parameters corresponds to the second panel, and so on.
  • the configuration information only needs to indicate N sets of power control parameters. It is not necessary to indicate the mapping between the power control parameters and the panel.
  • the terminal knows the mapping between the power control parameters and the panel according to a preset mapping rule, which can save Signaling overhead. The example is only used to explain the application, and the application does not limit the preset mapping rule.
  • the preset mapping rule may be predefined by a protocol, or a signaling indication may be sent by a network device.
  • the signaling may be the same signaling or a different signaling from the signaling that the network device indicates for the N sets of power control parameters.
  • the network device may transmit the configuration information through radio resource control (radio resource control, RRC) and other signaling, that is, the network device may configure N sets of power control parameters through static configuration.
  • RRC radio resource control
  • the network device can also transmit the configuration information through signaling such as MAC CE, that is, the network device can configure N sets of power control parameters through semi-static configuration.
  • the network device sends spatial information or other downlink information (such as panel switch indication information or panel ID or transmission mode indication information) to the terminal.
  • the terminal device receives the spatial information or other downlink information sent by the network device. This information can be used to determine the power control parameters used by the terminal when transmitting uplink signals on M uplink / resource / resource sets.
  • the terminal device transmits uplink signals on the M uplink / resource / resource sets, and the transmission power of the uplink signals transmitted on the M uplink / resource / resource sets is determined according to the first power control parameter.
  • the first power control parameter is selected from N sets. Power control parameters.
  • the first power control parameter is a power control parameter used when the terminal transmits an uplink signal on the M uplink / resource / resource sets.
  • the first power control parameter may be one or more power control parameters among the N sets of power control parameters.
  • the first power control parameter may be determined according to the spatial relationship information or other downlink information sent by the network device. How to determine the first power control parameter will be described in detail in the aspect (two) involved in the present application described later, which will not be described here again.
  • the first power control parameter may also be predefined by the protocol, and the network device does not need to perform an instruction.
  • the terminal may also determine the first power control parameter according to information previously reported by the terminal, such as a channel quality measurement report, identification information of a panel with excellent channel quality, and the like, without the need for an instruction from a network device.
  • the terminal may also determine the first power control parameter according to the measurement result on the terminal side, without the need for an instruction from the network device.
  • N sets of power control parameters for M uplink resources / resource sets can be specifically:
  • M 1.
  • an SRS resource set no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple SRS resource sets can also be bound together, and N sets of power control parameters can be configured for these multiple SRS resource sets, where M> 1.
  • the configuration of N sets of power control parameters for these multiple SRS resource sets can include the following situations:
  • the power control parameters corresponding to each of the multiple SRS resource sets can be selected from N sets of power control parameters.
  • At least one SRS resource set corresponding to each of the multiple SRS resource sets can be selected from N sets of power control parameters.
  • At least one SRS resource set corresponding to each of the multiple SRS resource sets may have a power control parameter corresponding to at least two power control parameters selected from the N power control parameters.
  • Case 1 can be exemplarily shown in Table 1
  • Case 2 can be exemplarily shown in Table 2
  • Case 3 can be exemplarily shown in Table 3:
  • the power control parameters corresponding to SRS resource set 0, SRS resource set 1, SRS resource set 1, and SRS resource set 0 and SRS resource set 1 can be selected from parameter 0 to parameter 3, SRS resource set The corresponding power control parameter is parameter 2.
  • the power control parameters corresponding to SRS resource set 0, SRS resource set 1, SRS resource set 1, and SRS resource set 0 and SRS resource set 1 can be selected from parameter 0 and parameter 1, SRS resource set The corresponding power control parameter is parameter 1.
  • one PUSCH resource does not only correspond to one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple PUSCH resources can also be bound together, and N sets of power control parameters can be configured for these multiple PUSCH resources, where M> 1.
  • configuring N sets of power control parameters for these multiple PUSCH resources can include the following situations:
  • the power control parameter corresponding to each PUSCH resource in the multiple PUSCH resources can be selected from N sets of power control parameters.
  • At least one PUSCH resource of each of the plurality of PUSCH resources can be selected from N sets of power control parameters.
  • At least one PUSCH resource of each of the plurality of PUSCH resources can have a power control parameter corresponding to at least two sets of power control parameters among N sets of power control parameters.
  • one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resource sets, and one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resources.
  • a PUCCH resource list or resource list no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • the specific implementation of configuring N sets of power control parameters for the M uplink / resource / resource sets can be similar to the description of the above 1-3, and is not repeated here.
  • scheme 1 considers multiple transmission paths corresponding to multiple panels of the terminal, and configures multiple sets of power control parameters for M uplink / resource / resource sets.
  • the terminal can select appropriate power control parameters according to the spatial relationship information or other downlink information (such as the panel switch indication information or panel ID or transmission mode indication information), flexibly determine the uplink transmit power, and improve the terminal power utilization efficiency.
  • the meaning of Table 4 is that the terminal only uses panel-0 to transmit SRS power control parameters as parameter 0, the terminal only uses panel-1 to transmit SRS power control parameters as parameter 1, and the terminal uses panel-0 and
  • the power control parameter used by panel-1 to transmit SRS is parameter 2.
  • the power control parameters used by the terminal when transmitting SRS are determined according to the panel used by the terminal to transmit SRS, and the three types of panel usage are considered differently.
  • the terminal can select the corresponding power control parameter from the three sets of power control parameters according to the actual panel usage, which can more flexibly adapt to the actual channel conditions and improve power utilization efficiency.
  • single-panel transmission means that the terminal device uses one panel to transmit one or more uplink signals within the first time unit.
  • Multi-panel transmission means that the terminal device uses at least two panels to transmit one or more uplink signals in the first time unit.
  • the multiple uplink signals at least partially overlap in time.
  • the first time unit may be one or more symbols, one or more slots, one or more subframes, and the like.
  • slot 0 belongs to a single panel transmission SRS
  • slots 1-4 belong to a multi-panel transmission.
  • slot0 and slot1 belong to a single panel transmission
  • slot2 and slot4 belong to a multi-panel transmission.
  • slot 3 the symbols that SRS transmitted by panel-0 and SRS transmitted by panel-1 do not overlap belong to a single panel transmission, and SRS signals transmitted by panel-0 and SRS transmitted by panel-1 overlap belong to a multi-panel transmission.
  • Q ⁇ 1 Q is a positive integer.
  • K panels refer to multiple panels of the terminal, K ⁇ L, L represents the number of panels of the terminal.
  • Parameter 0 is a set of power control parameters, which are configured to be used when only SRS is transmitted using panel-0;
  • Parameter 1 is a set of power control parameters, which are configured to be used when only SRS is transmitted using panel-1;
  • the set of power control parameters for panel-0 in parameter 2 may generally be different from parameter 0 (that is, only panel-0 transmission is used) Power control parameters used in SRS). Because the transmission power corresponding to parameter 0 when using only panel-0 to transmit SRS will be close to or equal to the maximum transmission power of the terminal to improve the power utilization rate.
  • parameter 2 includes The sum of the transmit powers corresponding to the two sets of power control parameters will be close to or equal to the maximum transmit power of the terminal. Therefore, the transmit power corresponding to the set of power control parameters for panel-0 in parameter 2 will be less than the transmit power corresponding to parameter 0 .
  • the set of power control parameters for panel-1 in parameter 2 can usually be different from parameter 1.
  • the set of power control parameters for parameter-1 for panel-1 in parameter 2 will correspond to a lower transmit power than parameter 1. Corresponding transmit power.
  • Table 5 is only used to explain this application. The same named parameters in Table 5 and other tables do not mean that their values are the same.
  • multiple panels transmit SRS including two panels transmitting SRS, three panels transmitting SRS, and four panels transmitting SRS.
  • the implementation of the configured power control parameters can refer to the implementation of parameter 2 in Table 5.
  • the power control parameters configured to transmit SRS to three panels may be only a set of power control parameters. At this time, the transmit power control of the three panels collectively follows this set of power control parameters;
  • the power control parameters of the 3 panels transmitting SRS can also be three sets of power control parameters.
  • the transmission power control of the 3 panels each follows a set of power control parameters; the power control parameters configured for the 3 panels to transmit SRS can also be two. Set of power control parameters.
  • the transmit power control of one of the three panels follows a set of power control parameters, and the transmit power control of the remaining one panel follows another set of power control parameters.
  • the terminal can select the N sets of power control parameters for transmitting the uplink signals under the condition that the panel used to transmit the uplink signals is determined. , The first power control parameter.
  • N sets of power control parameters can be configured for the M uplink, resource / resource sets according to the transmission mode, and one transmission mode can correspond to one or more sets of power control parameters.
  • the transmission method may include: single-panel transmission, multi-panel transmission, single-station transmission, and multi-station transmission.
  • the multi-panel transmission may specifically include: double-panel transmission, three-panel transmission, four-panel transmission, and the like.
  • Single-site transmission may include DPS (dynamic point switching) transmission mode; multi-station transmission mainly describes coordinated multipoint transmission / reception (CoMP), where CoMP may include non-coherent joint transmission (NCJT) , Coherent joint transmission (CJT), joint transmission (JT), and so on.
  • CoMP may include non-coherent joint transmission (NCJT) , Coherent joint transmission (CJT), joint transmission (JT), and so on.
  • NCJT non-coherent joint transmission
  • CJT Coherent joint transmission
  • JT joint transmission
  • the N sets of power control parameters configured for each SRS resource set in Mode 2 can be exemplarily shown in Table 6:
  • Parameter 0 is a power control parameter configured for transmitting SRS to a single panel; optionally, parameter 0 may be a set of power control parameters, and optionally, parameter 0 may be multiple sets of power control parameters;
  • Parameter 1 is configured to use power control parameters when transmitting SRS to dual panels; optionally, parameter 1 can be a set of power control parameters, and optionally, parameter 1 can also be multiple sets of power control parameters;
  • Parameter 2 is configured to use power control parameters when transmitting SRS to three panels; optionally, parameter 2 can be a set of power control parameters, and optionally, parameter 2 can also be multiple sets of power control parameters;
  • Parameter 3 is configured to use power control parameters when using the DSP transmission mode to transmit SRS; optionally, parameter 3 can be a set of power control parameters, and optionally, parameter 3 can also be multiple sets of power control parameters;
  • Parameter 4 is configured to use power control parameters when transmitting SRS using the NCJT transmission method; optionally, parameter 4 may be a set of power control parameters, and optionally, parameter 4 may be multiple sets of power control parameters;
  • Parameter 5 is configured to use power control parameters when transmitting SRS using the CJT transmission method; optionally, parameter 5 may be a set of power control parameters, and optionally, parameter 5 may be multiple sets of power control parameters;
  • Parameter 6 is configured to use power control parameters when transmitting SRS using the JT transmission method; optionally, parameter 6 may be a set of power control parameters, and optionally, parameter 6 may be multiple sets of power control parameters.
  • one set of power control parameters is used when a single panel is used to transmit uplink signals
  • the other set of power control parameters is used when multiple panels are used to transmit uplink signals.
  • SRS is used as an example for description. Assuming that the power control parameters are configured based on the 4 panels (panel-0 to panel-3) of the terminal, the 2 sets of power control parameters configured for each SRS resource set can be shown as an example in Table 9. :
  • Parameter 0 is a set of power control parameters, which is used when a single panel is configured to transmit SRS;
  • Parameter 1 is a set of power control parameters, which is used when transmitting SRS to multiple panels. At this time, the transmit power control of each panel follows this set of power control parameters.
  • single panel transmission of SRS includes 4 cases: only panel-0 is used to transmit SRS, only panel-1 is used to transmit SRS, only panel-2 is used to transmit SRS, and only panel-3 is used to transmit SRS.
  • the transmission power control of single-panel transmission in all four cases follows parameter 0.
  • Multi-panel transmission of SRS includes three cases: panel-0 and panel-2 transmit SRS, panel-1 and panel-3 transmit SRS, and four panels, panel-0 to panel-3, transmit SRS.
  • the transmission power control of multi-panel transmission in all three cases follows parameter 1. Table 7 is only used to explain this application and should not be construed as a limitation.
  • the terminal can determine the power control parameters used to transmit the uplink signal only after determining the number of panels used to transmit the uplink signal.
  • a power control parameter the number of panels used to transmit the uplink signal.
  • Method 3 Similar to method 1, but does not configure power control parameters for multi-panel transmission of uplink signals
  • K sets of power control parameters correspond to K antenna panels, respectively.
  • the power control parameters used when at least two panels transmit uplink signals include the power control parameters used when the at least two panels transmit uplink signals separately.
  • the terminal may transmit an uplink signal on each antenna panel according to a power control parameter corresponding to each antenna panel.
  • the power control parameters used when multiple panels transmit uplink signals are multiplexed with the power control parameters used when the single panels corresponding to the multiple panels transmit uplink signals.
  • the power control parameters used when multiple panels transmit uplink signals may also be matched with a scaling factor to ensure that the total transmit power of each panel does not exceed the maximum transmission power of the terminal.
  • K panels refer to multiple panels of the terminal, K ⁇ L, L represents the number of panels of the terminal.
  • panel-1 and panel-3 Parameter 1 and parameter 3 (with scaling factor) panel-0, panel-1, panel-2, and panel-3 Parameter 0 to parameter 3 (with scaling factor)
  • the method 3 and the method 1 are the same, and the power control parameters are configured for each panel.
  • method 3 does not additionally configure power control parameters for multi-panel transmission SRS, but reuses the power control parameters used in single-panel transmission.
  • the power control parameters used by panel-0 and panel-2 to transmit SRS are parameter 0 used when only panel-0 transmits SRS and parameter 2 used when only panel-2 transmits SRS, and a scaling factor is also required. .
  • the transmission power of panel-0 is determined according to parameter 0 and the scaling factor
  • the transmission power of panel-2 is determined according to parameter 2 and the scaling factor.
  • the scaling factor is used to ensure that when multiple panels transmit SRS, the total transmission power of multiple panels does not exceed the maximum transmission power of the terminal. Multiple panels can share one scaling factor or correspond to different scaling factors, which is not limited in this application.
  • the three ways of configuring N sets of power control parameters described in the above manners 1 to 3 may be implemented in combination, that is, different sets of N sets of power control parameters may be configured for different resources.
  • the above method 1 can be used to configure N sets of power control parameters for SRS resource set 1
  • the above method 2 can be used to configure N sets of power control parameters for SRS resource set
  • the above method 3 can be used to configure N sets of power for SRS resource set 3 Control parameters. That is, it is not necessary to configure the power control parameters in the same way for each SRS resource set.
  • the examples are only used to explain the application and should not be construed as limiting.
  • the network device can send M uplink / resource / resource set spatial information to the terminal.
  • the terminal may receive the spatial relationship information sent by the network device.
  • the reference signal indicated by the spatial / relation information of an uplink / resource / resource set has the same spatial characteristic parameters as the uplink signal carried by the uplink / resource / resource set.
  • the reference signal indicated by the spatial relation information may include SRS, CSI-RS, and the like.
  • the terminal may determine the first power control parameter based on the spatial relationship information.
  • the terminal determining the first power control parameter based on the spatial relationship information may include the following implementations:
  • the first power control parameter may be determined according to a panel used by reference signals indicated by the spatial information of the M uplink, resource / resource set.
  • Example 1 Assume that the N sets of power control parameters configured by the network device for each SRS resource set are shown in Table 5 above. It is assumed that the reference signal indicated by the spatial information of an SRS resource set is CSI-RS1, and it is assumed that the panel used by the terminal to receive the CSI-RS1 panel or the CSI-RS1 measurement result reported by the terminal is shown in Table 9 :
  • the panel corresponding to the CSI-RS in Table 9 may be the panel that was most recently received or measured or reported by the CSI-RS, or it may have the highest CSI-RS channel quality received or measured or reported multiple times within a certain period of time. , Or the panel with the highest CSI-RS average channel quality.
  • the panel corresponding to the CSI-RS in Table 9 may also be a terminal combination that uses each type of panel combination to perform channel quality measurement over a period of time, and has the highest average quality.
  • Example 1 according to the spatial relationship information of the SRS resource set, it can be known that the SRS carried by the SRS resource set and the CSI-RS have the same spatial characteristic parameters, so the panel and CSI used when transmitting the SRS on the SRS resource set -RS-1 uses the same panel as panel-1. Since the transmission quality of CSI-RS 1 using panel-1 is determined by beam training or direct measurement of CSI, the transmission quality of SRS using panel-1 in this SRS resource set is also good.
  • the terminal can determine the power control parameter used when transmitting the SRS on the SRS resource set according to panel-1 as parameter 1, that is, the first power control parameter is parameter 1.
  • Example 2 Assume that the N sets of power control parameters configured by the network device for each SRS resource set are shown in Table 5 above. Assume that an SRS resource set includes SRS resource0 and SRS resource1, and the reference signals indicated by its spatial information include: CSI-RS0 and CSI-RS1, where CSI-RS0 corresponds to SRS resource0 and CSI-RS1 Corresponds to SRS resource1. And it is assumed that the panel used by the terminal to receive CSI is shown in Table 9 above.
  • Example 2 according to the spatial relationship information of the SRS resource set, it can be known that the SRS carried by SRS resource1 and CSI-RS1 have the same spatial characteristic parameters, so the panel corresponding to SRS resource0 and the panel used by CSI-RS0 are the same. For panel-0. Because it is determined through beam training that the transmission quality of CSI-RS0 using panel-0 is good, so the transmission quality of SRS using panel-0 in SRS resource0 is also good. Similarly, the panel corresponding to SRS resource 1 is the same as the panel used by CSI-RS 1 and is panel-1.
  • a panel corresponding to an SRS resource refers to a panel used for transmitting SRS on the SRS resource.
  • Example 2 it is assumed that the first time unit is a slot, and the power control parameters used for transmitting the SRS on the SRS resource set may specifically include the following situations:
  • the terminal can determine that the power control parameter used for transmitting SRS through panel-0 on SRS resource 0 is parameter 0; the terminal can also determine the power control parameter used for transmitting SRS through panel-1 on SRS resource 1 Parameter 1. That is, the first power control parameter includes a parameter 0 corresponding to SRS resource 0 and a parameter 1 corresponding to SRS resource 1.
  • the terminal may determine that the power control parameter used when transmitting the SRS on the SRS resource set is parameter 2.
  • the terminal may determine that the power control parameter used when transmitting the SRS on the SRS resource set is parameter 2.
  • the first power control parameter can be determined based on the M uplink / resource / resource set.
  • the resource or resource set or resource group (resource / resource set / resource group) to which the reference signal indicated by the spatial information information belongs is determined.
  • the resource or resource set or resource group to which the source reference signal belongs refers to the resource or resource set or resource group that carries the source reference signal.
  • the rules for dividing a resource set or a resource group may include the following methods:
  • Method 1 Reference signals in different resource sets or resource groups can be sent simultaneously.
  • the SRS resource set has reference signals SRS1, SRS2, SRS3, and SRS4; their spatial relationships correspond to SRS7, SRS8, SRS9, and SRS10 in uplink beam management (UL).
  • SRS7 and SRS8 are reference signals belonging to set 1 (or group1) and are transmitted using panel 1.
  • SRS9 and SRS10 are reference signals belonging to set 2 (or group2) and are transmitted using panel 2.
  • the division rule of set1 (or group1) and set2 (or group2) is that the reference signal in set1 (or group1) can be sent simultaneously with the reference signal in set2 (or group2).
  • Method 2 Reference signals in the same resource set or resource group can be sent simultaneously.
  • SRS1, SRS2, SRS3, and SRS4 in the SRS resource set; their spatial relationships correspond to SRS7, SRS8, SRS9, and SRS10 in uplink beam management (UL).
  • SRS7 is a reference signal belonging to set1 (or group1) is sent using panel1
  • SRS8 is a reference signal belonging to set1 (or group1) is sent using panel2
  • SRS8 is a reference signal belonging to set2 (or group2) is sent using panel
  • SRS9 Reference signals belonging to set2 (or group2) are sent using panel2.
  • the division rule of set1 (or group1) and set2 (or group2) is that the reference signals in set1 (or group1) can be sent at the same time, and the reference signals in set2 (or group2) can be sent at the same time, and set1 (or The reference signals in group1) and the reference signals in set2 (or group2) cannot be sent simultaneously.
  • the reference signal (ie, the source reference signal) indicated by the spatial relationship information may be a CSI-RS.
  • the terminal can determine one or more panels used for receiving the CSI-RS through beam training, and record the CSI-RS.
  • the terminal can determine one or more panels that receive the CSI-RS, and then determine the corresponding panel from the N sets of power control parameters.
  • the power control parameter is the first power control parameter.
  • a network device may configure multiple reference signal resource sets or reference signal resource groups before beam training.
  • resource set 1 includes ⁇ CSI-RS ID1, CSI-RS ID2, CSI-RS ID3, and CSI-RS ID 4 ⁇
  • resource set 2 includes ⁇ CSI-RS ID 5, CSI-RS ID 6, CSI-RS ID 7, CSI-RS ID 8 ⁇ .
  • Resource set 1 is used for receiving beam training of panel 1
  • resource set 2 is used for receiving beam training of panel 2.
  • the terminal can determine to receive any one or some CSI-RS panels from CSI-RS ID1 to CSI-RS ID8, thereby determining the first power control parameter.
  • the panel used for transmitting the uplink signal and the panel used for receiving the source reference signal CSI-RS are the same.
  • the reference signal (ie, the source reference signal) indicated by the spatial relationship information may be SRS.
  • the terminal can record the mapping between the resource / resource set / resource group corresponding to the source reference signal SRS and one or more panels used by the SRS. In this way, after knowing the resource / resource set / resource group to which the source reference signal SRS belongs, the terminal can determine one or more panels of the source reference signal SRS, and then determine the power corresponding to the panel from the N sets of power control parameters.
  • the control parameter is the first power control parameter.
  • the network device will configure multiple reference signal resource sets or reference signal resource groups before beam training.
  • resource set 1 includes ⁇ SRS ID 1, SRS ID 2, SRS ID 3, SRS ID 4 ⁇
  • resource set 2 includes ⁇ SRS ID 5, SRS ID 6, SRS ID 7, SRS ID 8 ⁇ .
  • the resource set 1 is used for the transmission beam training of panel 1
  • the resource set 2 is used for the transmission beam training of panel 2.
  • the terminal can determine to transmit any one or some SRS panels from SRS ID 1 to SRS ID 8 to determine the first power control parameter.
  • the panel used for transmitting the uplink signal is the same as the panel used for transmitting the source reference signal SRS.
  • the indication panel may be equivalent to the indication resource set or resource group.
  • each spatial relationship information may include a reference signal index.
  • the number of spatial relationship information of the uplink signal may be only one, and each spatial relationship information may include one or more reference signals (in the case of multi-panel transmission).
  • the first power control parameter may be determined according to the number of reference signals indicated by the spatial relationship information of the M uplink / resource / resource sets.
  • the third implementation manner is applicable to the foregoing manner 2 of configuring N sets of power control parameters.
  • the terminal may determine the number of panels according to the number of reference signals indicated by the spatial relationship information, thereby determining a transmission mode. If the number of panels is equal to 1, the terminal may determine that the first power control parameter is a power control parameter for transmitting SRS with a single panel; if the number of panels is ⁇ 2, the terminal may determine that the first power control parameter is used for multiple The panel transmits the power control parameters of the SRS.
  • one CSI-RS corresponds to one panel.
  • the terminal determines that the first power control parameter based on the spatial relation information may also include other implementation manners. For example, if a resource set / resource corresponds to a panel and a resource set / resource corresponds to a spatial relation information, then in the foregoing manner 2 of configuring N sets of power control parameters, the terminal may also determine the first Power control parameters.
  • the spatial relationship may refer to an active spatial relationship.
  • the spatial relation information mentioned in this application extends the high-level parameters (such as pucch-SpatialRelationInfo) that describe spatial related information defined in the existing protocol. It is not limited to the reference signal indicated by the high-level parameter (such as SRS or CSI-RS), and the reference signal indicated by the spatial relationship information mentioned in this application may also include: uplink resource / resource set for non-codebook non-coodebook transmission (Such as non-codebook, SRS, resource set), and associated reference signals (such as CSI-RS).
  • uplink resource / resource set for non-codebook non-coodebook transmission Such as non-codebook, SRS, resource set
  • associated reference signals such as CSI-RS
  • the reference signal associated with uplink / resource / resource set used for non-codebook non-coodebook transmission refers to the QCL relationship or spatial correlation with the uplink signal carried by uplink / resource / resource set used for non-cobook book non-codebook transmission The reference signal for the relationship.
  • the spatial relationship information may be referred to as first indication information.
  • the network device may send one or more of the following indication information to the terminal: switch instruction information of the antenna panel, identification information (panel ID) of the antenna panel, or indication information of an uplink signal transmission mode.
  • the terminal may receive the instruction information sent by the network device.
  • the uplink signal transmission method may include a single panel to transmit an uplink signal and a multi-panel to transmit an uplink signal. These information directly indicate the number of panels or panels that the terminal should use to transmit uplink signals on the M uplink / resource / resource sets.
  • the terminal can determine a first power control parameter to be used for uplink signal transmission according to one or more of these pieces of information. That is, the terminal can determine which set or sets of power control parameters to use based on the explicit instructions of the network device.
  • the switch indication information of the antenna panel can indicate which panels are enabled or disabled. If the switch indication information indicates which panels are closed, the opened panels are terminal panels other than the closed panels.
  • the first power control parameter is the power control parameter corresponding to the panel that is turned on in the N sets of power control parameters.
  • the switch indication information of the antenna panel may be multiple bits, one of which corresponds to a panel, indicating whether the panel is turned on or off. In practical applications, there may be other ways to implement the switch indication information, which is not limited in this application.
  • the panel indicated by the identification information (panel ID) of the antenna panel is the panel that the terminal should use for transmitting uplink signals on the M uplink / resource / resource sets.
  • the first power control parameter is the power control parameter corresponding to the panel indicated by the identification information in the N sets of power control parameters.
  • the implementation manner of determining the first power control parameter by using the indication information of the transmission mode of the uplink signal is applicable to the foregoing manner 2 of configuring N sets of power control parameters.
  • the first power control parameter is the set of power control parameters corresponding to the transmission mode of the uplink signal.
  • one or more types of instruction information of the switch instruction information of the antenna panel, the identification information of the antenna panel (panel ID), or the instruction information of the transmission method of the uplink signal may be referred to as the second instruction information.
  • the above description describes the manner in which the terminal determines the first power control parameter based on the implicit or display indication of the network device.
  • the method is not limited to this.
  • the first power control parameter may be predefined by a protocol or based on information previously reported by the terminal (such as channel quality Measurement reports, information on panels with good channel quality, etc.), or based on the measurement results on the terminal side.
  • Solution 2 is described in detail below. Solution 2 mainly discusses how to allocate transmit power to uplink signals corresponding to multiple panels in a scenario where multiple panels transmit uplink signals.
  • FIG. 8 shows an overall flowchart of the signal transmission method described in scheme 2, the method may include:
  • the network device may send configuration information to the terminal, where the configuration information indicates power control parameters configured for the H uplink signals.
  • H ⁇ 2 H is a positive integer.
  • These H uplink signals are respectively transmitted through the H panels of the terminal.
  • the H uplink signals are carried in a first time unit. For the description of the first time unit, please refer to the foregoing content, which is not repeated here.
  • the terminal may determine the first transmit power corresponding to each of the H uplink signals based on the power control parameter corresponding to each of the H uplink signals.
  • the terminal determines whether the sum of the first transmission powers corresponding to the H uplink signals is greater than the maximum transmission power of the terminal. If the total transmission power is greater, S204-S205 are performed; otherwise, S206 is performed.
  • the terminal determines the second transmit power corresponding to at least one of the H uplink signals.
  • the sum of the second transmit powers corresponding to the at least one uplink signal is less than or equal to the maximum transmit power of the terminal.
  • the terminal may transmit the at least one uplink signal based on the second transmit power corresponding to each of the at least one uplink signal.
  • the network device receives the at least one uplink signal within a first time unit, and a sum of second transmission powers corresponding to the at least one uplink signal is less than or equal to a maximum transmission power of the terminal, and the at least one uplink signal corresponds to The second transmission power is determined according to the channel quality information of the respective reference signals of the H uplink signals.
  • the related reference signal may include one or more of the following: a reference signal included or indicated by the spatially related information of the H uplink signals, and a power control parameter included in each of the corresponding power control parameters of the H uplink signals for estimating the path loss.
  • Reference signal The channel quality information of the related reference signal was previously reported by the terminal.
  • the channel quality information of the related reference signal may be reported by the terminal last time.
  • the channel quality information includes reference signal received power RSRP, CQI, RSRQ, SINR, SNR, etc.
  • the relevant reference signal may be a downlink reference signal included in the power control parameter, and the terminal has reported the received power of the downlink reference signal related to each of the H uplink signals before sending the H signals.
  • the base station knows the transmit power of the downlink reference signal, so the network equipment can estimate its downlink path loss.
  • the related reference signal may be a reference signal included in the spatial correlation information. The terminal can do channel measurement before and report it to the base station.
  • the network device can determine which signal has a better transmission path according to the quality of the relevant reference signal previously reported by the terminal, and then determine which signal is transmitted at the power indicated by the network device, and which signal is transmitted at the remaining power.
  • the terminal may transmit H based on the first transmit powers corresponding to the H uplink signals in the first time unit. Uplink signals.
  • the configuration information may specifically indicate the power control parameters configured for the M uplink / resource / resource sets.
  • the power control parameters configured for the M uplink / resource / resource sets may include power control parameters configured for the H uplink signals.
  • the M uplink / resource / resource sets can be configured with multiple sets of power control parameters (refer to Scheme 1), or can be configured with only one set of power control parameters.
  • the terminal may allocate transmission power to the uplink signals corresponding to the H panels according to the respective path losses of the H panels, and specifically assigns transmission power to the uplink signals corresponding to the panels with the smaller path loss.
  • the terminal may allocate transmission power to the uplink signals corresponding to the H panels according to the respective path losses of the H panels, and specifically assigns transmission power to the uplink signals corresponding to the panels with the smaller path loss.
  • some of the H panels are not allocated with transmit power to protect the part of the panel from transmitting signals.
  • Scenario 1 M uplink / resource / resource sets are configured with multiple sets of power control parameters (for the configuration of multiple sets of power control parameters, please refer to scheme 1)
  • the terminal can determine the power used by the terminal to transmit H uplink signals based on the implicit indication (i.e., spatial information) or display indication (i.e., the switch indication information of the panel, panel ID, etc.) of the network device
  • the control parameter is the first power control parameter mentioned in the foregoing solution 1.
  • the terminal may determine the first transmit power corresponding to each of the H uplink signals according to the first power control parameter.
  • Example 1 SRS is taken as an example for description. Assume that multiple sets of power control parameters configured for each SRS resource set are shown in Table 10 as an example:
  • Antenna panel SRS power control parameters panel-0 Parameter 0 panel-1 Parameter 1 panel-2 Parameter 2 panel-3 Parameter 3 panel-0 and panel-2 Parameter 4 panel-1 and panel-3 Parameter 5 panel-0, panel-1, panel-2, and panel-3 Parameter 6
  • the reference signals indicated by the spatial information of a certain SRS resource set include: CSI-RS0 and CSI-RS2. It is also assumed that the terminal uses panel-0 to receive CSI-RS0 and panel-2 to receive CSI-RS2. Then, the H uplink signals are SRS transmitted by panel-0 and SRS transmitted by panel-2. According to Table 10, it can be determined that the power control parameter corresponding to the H SRSs is parameter 5.
  • parameter 5 may be two sets of power control parameters, which are configured to be used when panel-0 and panel-2 transmit SRS.
  • the first transmit power P ′ panel corresponding to the SRS transmitted by panel-0 -0 is determined according to one set of power control parameters (p0 1 , alpha 1 , RS 1 ), and the first transmission power P ′ corresponding to the SRS transmitted by panel-2 is set according to another set of power control parameters (p0 2 , alpha 2 , RS 2 ).
  • RS 1 and RS 2 are path loss reference signals.
  • PL (RS 1 ) is a path loss calculated according to RS 1
  • PL (RS 2 ) is a path loss calculated according to RS 2 .
  • parameter 5 may also be a set of power control parameters, which are configured to be used when panel-0 and panel-2 transmit SRS.
  • the first transmit power P ′ panel-0 corresponding to the SRS transmitted by panel-0 and the first transmit power P ′ panel-2 corresponding to the SRS transmitted by panel-2 are based on this set of power control parameters (p0, alpha, RS PL ).
  • P ′ panel-0 p0 + alpha * PL (CSI-RS 0);
  • P ′ panel-2 p0 + alpha * PL (CSI-RS 2).
  • PL (CSI-RS0) is the path loss calculated according to CSI-RS
  • PL (CSI-RS 2) is the path loss calculated according to CSI-RS 2.
  • the path loss reference signal RS PL in this set of power control parameters does not take into account the channel conditions of the multiple transmission paths corresponding to multiple panels, and is not suitable for calculating the SRS and panel-2 transmissions of panel-0 transmission.
  • the respective path losses of the SRS Therefore, the terminal can re-measure based on the source reference signals CSI-RS 0 and CSI-RS 2 corresponding to the SRS transmitted by panel-0 and SRS transmitted by panel-2 to obtain the correlation between the SRS transmitted by panel-0 and the SRS transmitted by panel-2. Path loss.
  • Example 2 SRS is taken as an example for description. Assume that multiple sets of power control parameters configured for each SRS resource set are shown in Table 11 as an example:
  • Parameter 0 is a set of power control parameters, which is used when a single panel is configured to transmit SRS;
  • Parameter 1 is a set of power control parameters. It is used when transmitting SRS to multiple panels. At this time, the transmit power control of each panel follows this set of power control parameters.
  • the reference signals indicated by the spatial relationship information of a certain SRS resource set include: CSI-RS1 and CSI-RS3. It is also assumed that the terminal uses panel-1 to receive CSI-RS1, and uses panel-3 to receive CSI-RS3. Then, the H uplink signals are SRS transmitted by panel-1 and SRS transmitted by panel-3. According to Table 7, it can be determined that the power control parameter corresponding to the H panels is parameter 1.
  • the first transmit power P ′ panel-1 corresponding to the SRS transmitted by panel-1 and the first transmit power P ′ panel-3 corresponding to the SRS transmitted by panel-3 are both based on parameter 1 (p0, alpha, RS PL ) determine.
  • P ′ panel-1 p0 + alpha * PL (CSI-RS 1);
  • P ′ panel-3 p0 + alpha * PL (CSI-RS 3).
  • PL (CSI-RS 1) is the path loss calculated according to CSI-RS 1
  • PL (CSI-RS 3) is the path loss calculated according to CSI-RS 3.
  • the path loss reference signal RS PL in this set of power control parameters does not take into account the channel conditions of multiple transmission paths corresponding to multiple panels, and is not suitable for calculating the SRS and panel-3 transmissions of panel-1 transmission.
  • the respective path losses of the SRS Therefore, the terminal can re-measure based on the source reference signals CSI-RS 1 and CSI-RS 3 corresponding to the SRS transmitted by panel-1 and SRS transmitted by panel-3 to obtain the correlation between the SRS transmitted by panel-1 and the SRS transmitted by panel-3. Path loss.
  • the terminal may preferentially correspond to the uplink signal with a smaller path loss according to the path loss associated with each uplink signal Uplink signals are allocated transmit power. In other words, the uplink signal with a smaller path loss is assigned power over the uplink signal with a larger path loss.
  • P panel-1 indicates the second transmission power corresponding to the uplink signal transmitted by panel-1
  • P panel-2 indicates the second transmission power corresponding to the uplink signal transmitted by panel-2.
  • transmission power is preferentially allocated for uplink signals with a small path loss.
  • the uplink signals transmitted by some of the H panels are not allocated to transmit power.
  • the uplink signals transmitted by panel-2 may correspond to a second transmit power of 0.
  • the transmit power can be allocated for uplink signals transmitted by more panels (H> 2).
  • the terminal can perform at least one round of power allocation according to the order of the path loss related to the uplink signal from small to large. among them:
  • the uplink signal with the smallest current path loss among the uplink signals from which the second transmit power has not been determined can be expressed as S i-minPL .
  • the actual transmit power allocated to S i-minPL may be min ⁇ P ′ i , Pmax ⁇ .
  • the actual transmit power, i.e. S i-minPL corresponding to S i-minPL second transmit power, Pmax of the maximum transmission power of the terminal indicates, min represents a minimum value.
  • P ir represents the transmission power remaining after excluding the transmission power allocated in the previous i-1 round from the maximum transmission power of the terminal.
  • P ′ i represents the first transmission power corresponding to S i-minPL .
  • the power allocation in the i-th round can be expressed by the following algorithm:
  • P i represents the second transmission power corresponding to Si -minPL
  • P ′ i represents the first transmission power corresponding to Si -minPL
  • Pmax represents the maximum transmission power of the terminal
  • Pr is the maximum transmission power of the terminal.
  • S i-minPL means the antenna panel with the second path power that has not been determined with the smallest path loss in the i- th round of power allocation .
  • the path loss associated with the uplink signal transmitted by each panel can be calculated according to the reference signal used to estimate the path loss corresponding to the uplink signal transmitted by each panel.
  • the reference signal corresponding to the uplink signal transmitted by a panel and used to estimate the path loss may be a reference signal indicated by the spatial relationship information of the uplink signal.
  • the reference signals indicated by the spatial information of an SRS resource set include: CSI-RS0 and CSI-RS2. It is also assumed that the terminal uses panel-0 to receive CSI-RS0 and panel-2 to receive CSI-RS2. Then, CSI-RS 0 is an SRS-related path loss reference signal transmitted by panel-0, and CSI-RS 2 is an SRS-related path loss reference signal transmitted by panel-2.
  • CSI-RS 0 is an SRS-related path loss reference signal transmitted by panel-0
  • CSI-RS 2 is an SRS-related path loss reference signal transmitted by panel-2.
  • the reference signal for estimating path loss corresponding to a panel may be a path loss reference signal included in a power control parameter corresponding to an uplink signal transmitted by the panel.
  • the first transmission power P ′ panel-2 corresponding to the uplink signal transmitted by panel-2 is determined according to the power control parameters (p0 2 , alpha 2 , RS 2 ). Then, the path loss reference signal related to the uplink signal transmitted by panel-2 may be RS 2 .
  • the examples are only used to explain the application and should not be construed as limiting.
  • the terminal can determine the first transmit power corresponding to the uplink signal transmitted by each of the H panels according to the set of power control parameters. Panels have different path losses.
  • the first transmit power corresponding to the uplink signals transmitted by the H antenna panels can be determined based on the following parameters:
  • This set of power control parameters includes the target received power p0 of the uplink signals, the path loss compensation factor alpha, and The path loss measured by the reference signal indicated by the spatial separation information of the uplink signals transmitted by the panels.
  • the reference signals indicated by the spatial relation information of a certain SRS resource set include: CSI-RS 0 and CSI-RS 2, and the terminal uses panel-0 to receive CSI-RS 0, and uses panel-2 to receive CSI-RS 2. Then:
  • the first transmit power corresponding to the uplink signal transmitted by panel-0 can be determined according to the following parameters: p0, alpha, and path loss measured based on CSI-RS0. That is, p0 + alpha * PL (CSI-RS0).
  • the first transmit power corresponding to the uplink signal transmitted by panel-2 can be determined according to the following parameters: p0, alpha, and path loss measured based on CSI-RS2. That is, p0 + alpha * PL (CSI-RS 2).
  • the path loss reference signal RS PL in only a set of power control parameters (p0, alpha, RS PL ) configured does not take into account the different path losses of multiple panels, it is not applicable to calculate the uplink signal transmitted by panel-0 and panel-2.
  • the path loss associated with each uplink signal is determined, and the first transmit power corresponding to the uplink signal transmitted by each panel is determined based on the recalculated path loss.
  • the method is the same as the method for determining the second transmit power corresponding to at least one of the H uplink signals in the scenario 1.
  • the terminal may determine the number of panels used for transmitting uplink signals on M uplink / resource / resource sets based on the spatial relationship information. If the number of panels is greater than or equal to 2, the transmission method of the uplink signal is determined to belong to multi-panel transmission uplink signal. The number of panels is equal to the number of uplink signals. It can be understood that the foregoing H uplink signals are transmitted by H panels using a multi-panel transmission mode.
  • the number of panels can be determined by one or more of the following: the number of spatial information of the uplink / resource / set, the number of reference signals indicated by the spatial information, the reference indicated by the spatial information A resource or resource set or resource group to which a signal (such as an SRS for beam training) belongs. Each is described below.
  • the terminal can determine the number of panels according to the number of spatial information.
  • the terminal may determine the number of panels according to the number of reference signals indicated by the spatial relationship information. For example, in a non-codebook transmission scenario, one CSI-RS corresponds to one panel, so the terminal can determine the number of panels according to the number of reference signals CSI-RS indicated by the spatial relationship information.
  • the resource or resource set or resource group to which the source reference signal belongs refers to the resource or resource set or resource group that carries the source reference signal.
  • the reference signal (ie, the source reference signal) indicated by the spatial relationship information may be a CSI-RS.
  • the terminal can determine the panel used to receive the CSI-RS through beam training, and record the resource / resource set / corresponding to the CSI-RS.
  • the mapping between resource groups and panels used by CSI-RS In this way, after knowing which resource / resource / set / resource groups the source reference signal CSI-RS belongs to, the terminal can determine one or more panels that receive the CSI-RS.
  • the panel used for transmitting the uplink signal is the same as the panel used for receiving the source reference signal CSI-RS. In this way, the number of panels used in transmitting the uplink signal can be determined.
  • the reference signal (ie, the source reference signal) indicated by the spatial relationship information may be SRS.
  • the terminal can determine the panel used for the transmission source reference signal SRS through beam training, and record the resource / resource set / resource corresponding to the source reference signal SRS. Mapping between panels used by the source reference signal SRS. In this way, after knowing which resource / resource / set / resource groups the source reference signal SRS belongs to, the terminal can determine one or more panels of the source reference signal SRS.
  • the panel used for transmitting the uplink signal is the same as the panel used for transmitting the source reference signal SRS. In this way, the number of panels used in transmitting the uplink signal can be determined.
  • the terminal may also determine the number of panels based on other indication information sent by the network device, such as the indication information of the switch of the panel, the panel ID, and the indication information of the transmission method of the uplink signal.
  • the terminal can determine that the number of panels is two. For another example, if the panel ID indicates panel-0 to panel-2, the terminal can determine that the number of panels is four. For another example, if the indication information of the transmission mode of the uplink signal instructs the 4 panel to transmit the uplink signal, the terminal may determine that the number of panels is four.
  • FIG. 9 illustrates a terminal 300 provided by some embodiments of the present application.
  • the terminal 300 may include: an input / output module (including an audio input / output module 318, a key input module 316, a display 320, etc.), a user interface 302, one or more terminal processors 304, a transmitter 306, and a receiver.
  • FIG. 9 uses a connection through a bus as an example. among them:
  • the communication interface 301 may be used for the terminal 300 to communicate with other communication devices, such as a base station.
  • the base station may be the network device 400 shown in FIG. 9.
  • the communication interface 301 refers to an interface between the terminal processor 304 and a transceiving system (consisting of a transmitter 306 and a receiver 308), such as the X1 interface in LTE.
  • the communication interface 301 may include a Global System for Mobile Communication (GSM) (2G) communication interface, a Wideband Code Division Multiple Access (WCDMA) (3G) communication interface, and One or more of Long Term Evolution (LTE) (4G) communication interfaces, etc., may also be communication interfaces of 4.5G, 5G or future new air interfaces.
  • the terminal 300 may also be configured with a wired communication interface 301, such as a Local Access Network (LAN) interface.
  • LAN Local Access Network
  • the antenna 314 may be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 310 is configured to divide the mobile communication signal received by the antenna 314 into multiple channels and distribute the signals to multiple receivers 308.
  • the transmitter 306 may be configured to perform transmission processing on a signal output by the terminal processor 304, such as modulating the signal in a licensed frequency band or modulating a signal in an unlicensed frequency band.
  • the receiver 308 may be configured to perform reception processing on a mobile communication signal received by the antenna 314. For example, the receiver 308 may demodulate a received signal that has been modulated on an unlicensed frequency band, and may also demodulate a received signal that is modulated on a licensed frequency band.
  • the transmitter 306 and the receiver 308 may be considered as a wireless modem.
  • the number of the transmitters 306 and the receivers 308 may be one or more.
  • the terminal 300 may further include other communication components, such as a GPS module, a Bluetooth module, a Wireless Fidelity (Wi-Fi) module, and the like. Not limited to the wireless communication signals described above, the terminal 300 may also support other wireless communication signals, such as satellite signals, short-wave signals, and the like. Not limited to wireless communication, the terminal 300 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • a wired network interface such as a LAN interface
  • the input / output module may be used to implement interaction between the terminal 300 and a user / external environment, and may mainly include an audio input / output module 318, a key input module 316, a display 320, and the like. In specific implementation, the input / output module may further include a camera, a touch screen, a sensor, and the like.
  • the input and output modules communicate with the terminal processor 304 through the user interface 302.
  • the memory 312 is coupled to the terminal processor 304 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 312 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 312 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 312 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 312 can also store a user interface program.
  • the user interface program can realistically display the content image of the application program through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog boxes, and buttons. .
  • the memory 312 may be used to store a program for implementing a signal transmission method provided by one or more embodiments of the present application on the terminal 300 side.
  • a signal transmission method provided by one or more embodiments of this application, please refer to the subsequent embodiments.
  • the terminal processor 304 may be used to read and execute computer-readable instructions. Specifically, the terminal processor 304 may be used to call a program stored in the memory 312, such as an implementation program of the signal transmission method provided by one or more embodiments of the present application on the terminal 300 side, and execute instructions included in the program.
  • the terminal processor 304 may be a modem processor, and is a module that implements the main functions in wireless communication standards such as 3GPP and ETSI.
  • the modem can be used as a separate chip or form a system-level chip or integrated circuit with other chips or circuits. These chips or integrated circuits can be applied to all devices that implement wireless communication functions, including: mobile phones, computers, notebooks, tablets, routers, wearable devices, automobiles, home appliances, etc.
  • the terminal processor 304 processor may be used as a separate chip and coupled with the off-chip memory, that is, the chip does not include memory; or the terminal processor 304 processor is coupled with the on-chip memory and Integrated in the chip, that is, the chip contains memory.
  • the terminal 300 may be the terminal 103 in the wireless communication system 100 shown in FIG. 1 and may be implemented as a mobile device, a mobile station, a mobile unit, a wireless unit, a remote unit, and a user agent. , Mobile clients, and more.
  • the terminal 300 shown in FIG. 9 is only an implementation manner of this application. In actual applications, the terminal 300 may further include more or fewer components, which is not limited herein.
  • FIG. 10 illustrates a network device 400 provided by some embodiments of the present application.
  • the network device 400 may include a communication interface 403, one or more network device processors 401, a transmitter 407, a receiver 409, a coupler 411, an antenna 413, and a memory 405. These components may be connected through a bus or other methods.
  • FIG. 10 uses the connection through a bus as an example. among them:
  • the communication interface 403 may be used for the network device 400 to communicate with other communication devices, such as terminal devices or other base stations.
  • the terminal device may be the terminal 300 shown in FIG. 9.
  • the communication interface 301 refers to an interface between the network device processor 401 and a transceiver system (consisting of a transmitter 407 and a receiver 409), such as the S1 interface in LTE.
  • the communication interface 403 may include a Global System for Mobile Communications (GSM) (2G) communication interface, a Wideband Code Division Multiple Access (WCDMA) (3G) communication interface, and a Long Term Evolution (LTE) (4G) communication interface, etc.
  • GSM Global System for Mobile Communications
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • the network device 400 may also be configured with a wired communication interface 403 to support wired communication.
  • a backhaul link between one network device 400 and another network device 400 may be a wired communication connection.
  • the antenna 413 may be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the coupler 411 can be used to divide the mobile communication signal into multiple channels and distribute the signals to multiple receivers 409.
  • the transmitter 407 may be configured to perform transmission processing on a signal output by the network device processor 401, for example, to modulate the signal in a licensed frequency band or to modulate a signal in an unlicensed frequency band.
  • the receiver 409 may be configured to perform reception processing on a mobile communication signal received by the antenna 413. For example, the receiver 409 may demodulate a received signal that has been modulated on an unlicensed frequency band, and may also demodulate a received signal that is modulated on a licensed frequency band.
  • the transmitter 407 and the receiver 409 may be considered as a wireless modem.
  • the number of the transmitters 407 and the receivers 409 may be one or more.
  • the memory 405 is coupled to the network device processor 401 and is configured to store various software programs and / or multiple sets of instructions.
  • the memory 405 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 405 may store an operating system (hereinafter referred to as a system), such as an embedded operating system such as uCOS, VxWorks, and RTLinux.
  • the memory 405 may also store a network communication program, which can be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the network device processor 401 may be used to perform wireless channel management, implement call and communication link establishment and removal, and control handover of user equipment in the control area.
  • the network device processor 401 may include: an Administration / Communication Module / Communication Module (AM / CM) (a center for voice path exchange and information exchange), a basic module (Basic Module (BM)) To complete call processing, signaling processing, wireless resource management, wireless link management and circuit maintenance functions), code conversion and submultiplexing unit (Transcoder and SubMultiplexer (TCSM) (for completing multiplexing demultiplexing and code conversion Features) and so on.
  • AM / CM Administration / Communication Module / Communication Module
  • BM Basic Module
  • TCSM Transcoder and SubMultiplexer
  • the network device processor 401 may be used to read and execute computer-readable instructions. Specifically, the network device processor 401 may be used to call a program stored in the memory 405, such as an implementation program of the signal transmission method provided by one or more embodiments of the present application on the network device 400 side, and execute instructions included in the program .
  • the network device processor 401 may be a modem processor, and is a module that implements main functions in wireless communication standards such as 3GPP and ETSI.
  • the modem can be used as a separate chip or form a system-level chip or integrated circuit with other chips or circuits. These chips or integrated circuits can be applied to all network-side devices that implement wireless communication functions.
  • eNB evolved NodeB
  • eNodeB evolved NodeB
  • Node B Node B
  • NR NodeB, gNB 5G base station
  • the network device processor 401 may be used as a separate chip and coupled with the off-chip memory, that is, the chip does not include a memory; or the network device processor 401 processor is coupled with the on-chip memory and Integrated in the chip, that is, the chip contains memory.
  • the network device 400 may be the network device 101 in the wireless communication system 100 shown in FIG. 1, and may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), and an extended service set (ESS). , NodeB, eNodeB, etc.
  • the network device 400 may be implemented as several different types of base stations, such as a macro base station, a micro base station, and the like.
  • the network device 400 may apply different wireless technologies, such as a cell wireless access technology, or a WLAN wireless access technology.
  • the network device 400 shown in FIG. 10 is only an implementation manner of the present application. In practical applications, the network device 400 may further include more or fewer components, which is not limited herein.
  • FIG. 11 is a wireless communication system 10 and a network device 600 and a terminal 500 in the wireless communication system 10 according to an embodiment of the present application.
  • the network device 600 may be the network device in the foregoing embodiment
  • the terminal 500 may be the terminal in the foregoing embodiment.
  • the terminal 500 may include a processing unit 501 and a communication unit 503.
  • the network device 600 may include a communication unit 601 and a processing unit 603.
  • each function included in the terminal 500 may be specifically implemented as follows:
  • the communication unit 503 may specifically include a sending unit 5031 and a receiving unit 5033. among them:
  • the receiving unit 5033 may be configured to receive configuration information that may indicate N sets of power control parameters configured for M uplink signal resources or uplink signal resource sets; M ⁇ 1, M is a positive integer, N> 1, and N is a positive integer.
  • the sending unit 5031 may be configured to transmit uplink signals on the M uplink signal resources or uplink signal resource sets, and transmit power of the uplink signals on the M uplink signal resources or uplink signal resource sets is determined according to the first power control parameter.
  • a power control parameter is selected from the N sets of power control parameters.
  • the processing unit 501 may be configured to determine a first power control parameter from the N sets of power control parameters, and determine a transmit power for transmitting an uplink signal on the M uplink signal resources or a set of uplink signal resources according to the first power parameter. .
  • each function included in the network device 600 may be specifically implemented as follows:
  • the communication unit 601 may specifically include a receiving unit 6011 and a sending unit 6013. among them:
  • the sending unit 6013 may be configured to send configuration information to the terminal, where the configuration information may indicate N sets of power control parameters configured for the M uplink signal resources or the uplink signal resource set.
  • the receiving unit 6011 may be configured to receive an uplink signal sent by the terminal on the M uplink signal resources or the uplink signal resource set.
  • the processing unit 603 may be configured for N sets of power control parameters configured for M uplink signal resources or uplink signal resource sets.
  • the relationship between the M uplink signal resources or uplink signal resource set (uplink resource / resource set) and the N sets of power control parameters may be reflected as follows:
  • each uplink / resource / resource set of the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • each uplink / resource / resource set in the M uplink / resource / set is associated with the N sets of power control parameters, which means that each of the uplink / resource / resource set in the M uplink / resource / resource set corresponds to the power control parameter Can be selected from N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of each uplink / resource / resource set of the M uplink / resource / resource sets.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with the N sets of power control parameters.
  • the association of the at least one uplink resource / resource set with the N sets of power control parameters means that the respective power control parameters corresponding to the at least one uplink resource / resource set can be selected from the N sets of power control parameters.
  • the N sets of power control parameters are candidate power control parameters of at least one uplink resource / resource set.
  • At least one uplink / resource / resource set among the M uplink / resource / resource sets is associated with at least one of the N power control parameters.
  • the association of at least one uplink resource / resource set with the at least one set of power control parameters means that the respective power control parameters corresponding to at least one uplink resource / resource set can be selected from the at least one set of power control parameters.
  • the at least one set of power control parameters is a candidate power control parameter of the at least one uplink resource / resource set.
  • the power control parameter may include one or more of the following: a target received power of an uplink signal, a path loss compensation factor, and a path loss reference signal.
  • the power control parameters may include three items: target received power of the uplink signal, path loss compensation factor, and path loss reference signal.
  • the power control parameter may include the target received power of the uplink signal and the path loss reference signal.
  • the configuration information may indicate a mapping between a panel and a power control parameter.
  • the configuration information may only indicate N sets of power control parameters, and the mapping between the N sets of power control parameters and the panel may follow a preset mapping rule, which is known by the terminal 500.
  • the processing unit 603 in the network device may be specifically configured to configure N sets of power control parameters for M uplink resources / resource sets for different uplink signals:
  • M 1.
  • an SRS resource set no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple SRS resource sets can also be bound together, and N sets of power control parameters can be configured for these multiple SRS resource sets, at this time M> 1.
  • one PUSCH resource does not only correspond to one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • multiple PUSCH resources can also be bound together, and N sets of power control parameters can be configured for these multiple PUSCH resources, where M> 1.
  • one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resource sets, and one PUCCH resource list includes M (M ⁇ 1, M is a positive integer) PUCCH resources.
  • a PUCCH resource list or resource list no longer corresponds to only one set of power control parameters, but corresponds to multiple sets of power control parameters.
  • the N sets of power control parameters may include: power control parameters for transmitting uplink signals using a single antenna panel on M uplink signal resources or uplink signal resource sets, and / or, on M uplink signal resources Or the uplink signal resource set adopts multiple antenna panels to transmit the power control parameters of the uplink signal.
  • the manner in which the processing unit 603 in the network device 600 configures the N sets of power control parameters may include the following manners:
  • Q ⁇ 1 Q is a positive integer.
  • K panels refer to multiple panels of the terminal, K ⁇ L, L represents the number of panels of the terminal.
  • N sets of power control parameters can be configured for the M uplink, resource / resource sets according to the transmission mode, and one transmission mode can correspond to one or more sets of power control parameters.
  • one set of power control parameters is used when a single panel is used to transmit uplink signals
  • the other set of power control parameters is used when multiple panels are used to transmit uplink signals.
  • Method 3 Similar to method 1, but does not configure power control parameters for multi-panel transmission of uplink signals
  • the power control parameters used when at least two panels transmit uplink signals include the power control parameters used when the at least two panels transmit uplink signals separately.
  • the manner in which the processing unit 501 in the terminal 500 determines the first power control parameter may include:
  • Method 1 Determine a first power control parameter based on an implicit indication of a network device
  • the network device can send M uplink / resource / resource set spatial information to the terminal.
  • the terminal may receive the spatial relationship information sent by the network device.
  • the reference signal indicated by the spatial relationship information and the uplink signals carried by the M uplink / resource / resource sets have the same spatial characteristic parameters.
  • the reference signal indicated by the spatial relation information may include SRS, CSI-RS, and the like.
  • the processing unit in the terminal 500 may be specifically configured to determine the first power control parameter based on the spatial relationship information.
  • the processing unit in the terminal 500 may be specifically used according to the panel used by the reference signal indicated by the spatial relationship information, the resource or resource set or resource group to which the reference signal indicated by the reference information indicates, or the resource grouping, or the reference indicated by the spatial information One or more of the number of signals determines a first power control parameter.
  • Method 2 Determine the first power control parameter based on the display instruction of the network device
  • the network device may send one or more of the following indication information to the terminal: switch instruction information of the antenna panel, identification information (panel ID) of the antenna panel, or indication information of an uplink signal transmission mode.
  • the terminal may receive the instruction information sent by the network device.
  • the uplink signal transmission method may include a single panel to transmit an uplink signal and a multi-panel to transmit an uplink signal. These information directly indicate the number of panels or panels that the terminal should use to transmit uplink signals on the M uplink / resource / resource sets.
  • the terminal can determine a first power control parameter to be used for uplink signal transmission according to one or more of these pieces of information. That is, the terminal can determine which set or sets of power control parameters to use based on the explicit instructions of the network device.
  • each function included in the terminal 500 may be specifically implemented as follows:
  • the processing unit 501 may be configured to transmit the uplink signals by using the H antenna panels of the terminal on the M uplink signal resources or the uplink signal resource set, and determine the H antenna panels based on the power control parameters corresponding to the H antenna panels. The sum of the respective first transmit powers is greater than the maximum transmit power of the terminal, and then the second transmit power corresponding to at least one of the H antenna panels is determined.
  • the communication unit 503 may be configured to use the at least one antenna panel to transmit the uplink signal on the M uplink signal resources or the uplink signal resource set based on the second transmit power corresponding to each of the at least one antenna panel.
  • the sum of the respective second transmission powers of the at least one antenna panel is less than or equal to the maximum transmission power of the terminal. H ⁇ 2, H is a positive integer.
  • each function included in the network device 600 may be specifically implemented as follows:
  • the communication unit 601 may be configured to send configuration information to the terminal 500, where the configuration information may indicate power control parameters corresponding to the H antenna panels of the terminal 500, respectively.
  • the communication unit 601 may be further configured to receive the uplink signal sent by the terminal 500 on the M uplink signal resources or the uplink signal resource set.
  • some panels of the H panels are not allocated with transmission power or signals are not transmitted on the partial panels. That is, the number of the at least one antenna panel is less than H.
  • the M uplink / resource / resource sets can be configured with multiple sets of power control parameters, that is, the N sets of power control parameters configured in the foregoing solution 1.
  • the power control parameters corresponding to each of the H antenna panels are N sets of power control parameters.
  • the processing unit 501 can allocate transmit power to the uplink signals corresponding to each panel by the following methods:
  • the processing unit 501 may be configured to determine that the terminal 500 adopts H panels based on an implicit instruction (i.e., spatial information) or a display instruction (i.e., switch instruction information of the panel, panel ID, etc.) of the network device 600.
  • the power control parameter used when transmitting the uplink signal is the first power control parameter mentioned in the foregoing solution 1.
  • the processing unit 501 may be configured to determine a first transmit power corresponding to each of the H panels according to the first power control parameter.
  • the processing unit 501 may be configured to preferentially allocate transmit power to an uplink signal corresponding to a panel with a smaller path loss according to the path loss related to each panel. That is to say, a panel with a smaller path loss is assigned power in preference to a panel with a larger path loss.
  • the processing unit 501 may be configured to perform at least one round of power allocation according to an order of panel-related path loss from small to large. among them:
  • the panel with the smallest current path loss among the panels from which the second transmit power has not been determined can be expressed as panel i-minPL . If the current remaining power P ir to be dispensed is greater than or equal to the panel i-minPL corresponding to a first transmission power P 'i, the actual transmit power allocated to the panel i-minPL may be min ⁇ P' i, Pmax ⁇ ; otherwise assigned The actual transmit power to the panel i-minPL can be min ⁇ P ′ i , P ir ⁇ .
  • the actual transmit power i.e., panel i-minPL panel i-minPL corresponding second transmit power
  • Pmax of the maximum transmission power of the terminal indicates
  • min represents a minimum value
  • P ir represents the transmission power remaining after excluding the transmission power allocated in the previous i-1 round from the maximum transmission power of the terminal.
  • the power allocation in the i-th round can be expressed by the following algorithm:
  • P i represents the panel i-minPL corresponding to a second transmit power
  • P 'i denotes a first transmission power corresponding to the panel i-minPL
  • P max of the terminal represents maximum transmission power Pmax of the terminal
  • Pr is the maximum transmit power of the terminal is removed in The remaining transmit power after the allocated transmit power in the previous i-1 round of power allocation, 0 ⁇ Pr ⁇ Pmax
  • panel i-minPL represents the antenna panel with the smallest path loss in the i- th round of power allocation and the second transmit power has not been determined .
  • M uplink / resource / resource sets can be configured with only one set of power control parameters. At this time, the power control parameters corresponding to the H antenna panels are the same set of power control parameters.
  • the processing unit 501 can be used to determine the first transmit power corresponding to each of the H panels based on this set of power control parameters, but each panel needs to be considered The corresponding path loss is different.
  • the first transmit powers corresponding to the H antenna panels can be determined based on the following parameters:
  • This set of power control parameters includes the target received power p0 of the uplink signal, the path loss compensation factor alpha, and the spatial relationship based on the H panels The path loss measured by the corresponding reference signal in the reference signal indicated by the information.
  • the processing unit 501 may be configured to preferentially allocate transmit power to uplink signals corresponding to the panel with a smaller path loss according to the path loss associated with each panel.
  • the M uplink / resource / resource sets are configured with N sets of power control parameters, and details are not described herein again.
  • an embodiment of the present invention also provides a wireless communication system.
  • the wireless communication system may be the wireless communication system 100 shown in FIG. 1 or the wireless communication system 10 shown in FIG. 11, and may include: network equipment And terminal.
  • the terminal may be the terminal in the foregoing embodiment, and the network device may be the network device in the foregoing embodiment.
  • the terminal may be the terminal 300 shown in FIG. 9, and the network device may be the network device 400 shown in FIG. 10.
  • the terminal may also be the terminal 500 in the embodiment of FIG. 11, and the network device may also be the network device 600 in the embodiment of FIG. 11.
  • the network and the terminal reference may be made to the foregoing embodiments, and details are not described herein again.
  • the terminal processor 304 is configured to call an instruction stored in the memory 312 to control the transmitter 306 to send signals and control the receiver 308 to receive signals.
  • the transmitter 306 is configured to support a terminal to perform a process of transmitting data and / or signaling.
  • the receiver 308 is used to support the terminal to perform a process of receiving data and / or signaling.
  • the memory 312 is configured to store program codes and data of the terminal.
  • the receiver 308 may be configured to receive configuration information sent by a network device.
  • the configuration information may indicate N sets of power control parameters configured for M uplink signal resources or uplink signal resource / resource sets; M ⁇ 1, M is a positive integer, N> 1, and N is a positive integer.
  • M ⁇ 1, M is a positive integer, N> 1, and N is a positive integer.
  • the terminal 300 may have L antenna panels, and the N sets of power control parameters are configured based on the K antenna panels of the terminal 300; M ⁇ 1, M is a positive integer, N> 1, N is a positive integer, 2 ⁇ K ⁇ L, K , L are positive integers.
  • the transmitter 306 may be used to transmit an uplink signal.
  • the transmit power of the uplink signal is determined according to the first power control parameter, and the first power control parameter is selected from the N sets of power control parameters.
  • the network device processor 401 is configured to control the transmitter 407 to send signals and control the receiver 409 to receive signals.
  • the transmitter 407 is configured to support a network device to perform a process of transmitting data and / or signaling.
  • the receiver 409 is configured to support a network device to perform a process of receiving data and / or signaling.
  • the memory 405 is configured to store program code and data of a network device.
  • the transmitter 407 may be mainly used for a terminal to send configuration information, and the configuration information may indicate N sets of power control parameters configured for M uplink signal resources or uplink signal resource sets.
  • the receiver 409 may be configured to receive an uplink signal sent by the terminal on the M uplink signal resources or the uplink signal resource set.
  • FIG. 12 is a schematic structural diagram of a device provided by the present application.
  • the device 50 may include a processor 501 and one or more interfaces 502 coupled to the processor 501. among them:
  • the processor 501 may be used to read and execute computer-readable instructions.
  • the processor 501 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for decoding the instructions and issuing control signals for the operations corresponding to the instructions.
  • the operator is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations, and logical operations. It can also perform address operations and conversions.
  • Registers are mainly responsible for storing register operands and intermediate operation results temporarily stored during instruction execution.
  • the hardware architecture of the processor 501 may be an application specific integrated circuit (ASIC) architecture, a MIPS architecture, an ARM architecture, or an NP architecture.
  • the processor 501 may be single-core or multi-core.
  • the interface 502 can be used to input data to be processed to the processor 501, and can output the processing result of the processor 501 to the outside.
  • the interface 502 may be a general input / output (GPIO) interface, and may be connected to multiple peripheral devices (such as a radio frequency module, etc.).
  • the interface 502 may also include multiple independent interfaces, such as an Ethernet interface, a mobile communication interface (such as an X1 interface), etc., which are respectively responsible for communication between different peripheral devices and the processor 501.
  • the processor 501 may be used to call the implementation program of the signal transmission method provided by one or more embodiments of the present application on a network device side or a terminal side from a memory, and execute instructions included in the program.
  • the interface 502 can be used to output the execution result of the processor 501.
  • the interface 503 may be specifically used to output the processing result of the processor 501.
  • processor 501 and the interface 502 can be implemented through hardware design, software design, or a combination of software and hardware, which is not limited here.
  • the steps of the method or algorithm described in connection with the disclosure of the embodiments of the present invention may be implemented in a hardware manner, or may be implemented in a manner that a processor executes software instructions.
  • Software instructions can be composed of corresponding software modules.
  • Software modules can be stored in RAM, flash memory, ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EPROM, EEPROM), registers, hard disks, mobile hard disks, CD-ROMs, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be an integral part of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • the ASIC can be located in a transceiver or a relay device.
  • the processor and the storage medium may also exist as discrete components in a radio access network device or a terminal device.
  • the functions described in the embodiments of the present invention may be implemented by hardware, software, firmware, or any combination thereof.
  • the functions may be stored on a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage media may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

一种信号传输方法、相关设备及系统，该方法包括：终端接收配置信息，所述配置信息指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数；所述终端在所述M个上行信号资源或上行信号资源集合上发射上行信号，在所述M个上行信号资源或上行信号资源集合上发射上行信号的发射功率依据第一功率控制参数确定；所述第一功率控制参数选自所述N套功率控制参数。上述方案可实现更加灵活的上行发射功率的调整，可实现上行传输的功率效率和上行传输性能的最大化。

Description

信号传输方法、相关设备及系统 技术领域
本申请涉及无线通信技术领域，尤其涉及一种信号传输方法、相关设备及系统。
背景技术
作为新一代无线接入技术(new radio access technology,NR)关键技术之一，高频(high frequency,HF)可以提供更多的频谱资源、支持更多的天线数目，提升系统容量，已经得到了广泛研究。随着频率的提升，无线信号的波长相应地变短，短波长可以使得收发两端的天线尺寸大为缩减，多个天线因而能够被容易的集成在一个空间有限的面板之内。通过多天线的波束赋性技术，将发送信号能量汇集在某一方向上进行发送，可以有效提升覆盖，进而提高通信的性能。相应地，接收机可以形成具有方向性的接收波束，实现高增益的接收某一空间方向上到达的无线信号。伴随着天线封装技术的不断演进，多个天线阵子可以更容易地与芯片嵌套结合，形成一个天线面板或者天线阵列，这使得在发射机配置多个低相关性的天线面板(或天线阵列)成为可能。多个天线面板可以独立的形成发送波束，从而一个发射机可以通过不同的波束发送数据流，以提升传输的容量或可靠性。
其中，上行信号传输的功率控制对于整个无线通信系统至为重要。
上行功率控制是整个无线通信传输系统的关键，一方面要满足为了达到服务质量(QoS)所需的足够的每比特发送能量，另一方面是最小化对系统其他用户的干扰。为了实现这些目的，上行功率控制必须自适应无线传播信道特性。
传统的针对用户设备(user equipment，UE)端的功率控制方法可分为开环功率控制和闭环功率控制。开环功率控制中基站用固定的功率发射下行参考信号并通过SIB2告知UE该发射功率，UE根据接收到的参考信号强度推测出下行路径损耗(PL)并认为上行路径损耗与之相当，基站通过SIB2告知UE其希望的接收功率(P0)，UE依据P0和PL来设置发送功率。而在闭环功率控制中，接收端通过实际接收的信噪比(SINR)和目标值比较，得到闭环功率控制命令(TPC，Transmit Power Control)，并由PDCCH反馈给发送端。当SINR高于目标值时，命令发送端降低功率，当SINR低于目标值时，命令发送端提高功率。一般来讲，刚开机时，UE与TRP之间尚未建立起对话的通道，会采用开环功控。随着对话通道的建立成功，闭环功控开始发挥作用。
现有UE端功率控制集中在上行多个载波传输的信道上，通过载波间的功率协调来进行控制。然而，在LTE中，一个UE仅具有一个Antenna port/beam,而在NR中，一个UE可以具有多个天线面板，对应着多个Antenna port/beam,而针对于同一个UE上不同天线面板发射信号在UE侧的功率控制，现有协议内容并没有涉及。
发明内容
本申请提供了一种信号传输方法、相关设备及系统，适应多panel终端的上行功率控制。
第一方面，本申请提供了一种信号传输方法，应用于终端侧，该方法可包括：终端接收配置信息，该配置信息可指示为M个上行信号资源或上行信号资源集合(uplink  resource/resource set)配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数。终端在这M个上行信号资源或上行信号资源集合上发射上行信号，在这M个上行信号资源或上行信号资源集合上发射上行信号的发射功率依据第一功率控制参数确定，第一功率控制参数选自这N套功率控制参数。
第二方面，本申请提供了一种信号传输方法，应用于网络设备侧，该方法可包括：网络设备向终端发送配置信息，该配置信息可指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数。网络设备在这M个上行信号资源或上行信号资源集合上接收终端发送的上行信号。
本申请中，终端具有L个天线面板，这N套功率控制参数是基于终端的K个天线面板配置的；M≥1，M是正整数，N＞1，N是正整数，2≤K≤L，K、L都是正整数。
可选的，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数。这里，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数是指M个uplink resource/resource set中的每一个uplink resource/resource set对应的功率控制参数均可选自N套功率控制参数。换句话说，这N套功率控制参数为M个uplink resource/resource set中的每一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数。这里，至少一个uplink resource/resource set关联这N套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自N套功率控制参数。换句话说，这N套功率控制参数为至少一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数中至少两套功率控制参数。这里，至少一个uplink resource/resource set关联该至少一套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自该至少一套功率控制参数。换句话说，该至少一套功率控制参数为该至少一个uplink resource/resource set的候选(candidate)功率控制参数。
第一方面和第二方面描述的方案考虑了终端的多个panel对应的多个传输路径，为M个uplink resource/resource set配置了多套功率控制参数。这样，这样终端便可以基于spatial relation信息或其他信息(如panel开关指示或者panel ID信息或传输方式)来灵活确定采用哪一套或哪些套功控参数，可实现更加灵活的上行发射功率的调整，可实现上行传输的功率效率和上行传输性能的最大化。
结合第一方面或第二方面，在一些可选实施例中，功率控制参数可包括以下一项或多项：上行信号的目标接收功率、路径损耗补偿因子、路径损耗参考信号。其中，目标接收功率P0是指网络设备能够解调上行信号的最低信号强度，或者说是网络设备期望接收上行信号时的接收功率；路径损耗补偿因子alpha/α是指网络设备通过该补偿因子来决定路径损耗在上行功率控制中的权重；路径损耗参考信号pathloss RS是指终端根据接收到的用于估计路径损耗的参考信号的强度推测出下行路径损耗(PL)并认为上行路径损耗与之相当。可选的，对于SRS、PUSCH来说，功率控制参数可包括上行信号的目标接收功率、路径损 耗补偿因子、路径损耗参考信号这三项。可选的，对于PUCCH来说，功率控制参数可包括上行信号的目标接收功率、路径损耗参考信号这两项。
结合第一方面或第二方面，在一些可选实施例中，网络设备发送给终端的配置信息可以指示panel与功率控制参数之间的映射。
结合第一方面或第二方面，在一些可选实施例中，网络设备发送给终端的配置信息也可以仅指示N套功率控制参数，N套功率控制参数与panel之间的映射可以遵循预设映射规则，该预设映射规则为终端所知。
结合第一方面或第二方面，在一些可选实施例中，对于不同的上行信号，为M个uplink resource/resource set配置N套功率控制参数具体可为：
1.为一个SRS resource set配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个SRS resource set不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个SRS resource set绑定在一起，为这多个SRS resource set配置N套功率控制参数，此时M＞1。
为这多个SRS resource set配置N套功率控制参数具体可包括以下几种情况：
情况1，可选的，这多个SRS resource set中每一个SRS resource set各自对应的功率控制参数均可以选自N套功率控制参数。
情况2，可选的，这多个SRS resource set中至少有一个SRS resource set各自对应的功率控制参数均可以选自N套功率控制参数。
情况3，可选的，这多个SRS resource set中至少有一个SRS resource set各自对应的功率控制参数可以选自N套功率控制参数中的至少两套功率控制参数。
2.为一个PUSCH resource配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个PUSCH resource不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个PUSCH resource绑定在一起，为这多个PUSCH resource配置N套功率控制参数，此时M＞1。
类似的，为这多个PUSCH resource配置N套功率控制参数具体可包括以下几种情况：
情况1，可选的，这多个PUSCH resource中每一个PUSCH resource各自对应的功率控制参数均可以选自N套功率控制参数。
情况2，可选的，这多个PUSCH resourcet中至少有一个PUSCH resource各自对应的功率控制参数均可以选自N套功率控制参数。
情况3，可选的，这多个PUSCH resource中至少有一个PUSCH resource各自对应的功率控制参数可以选自N套功率控制参数中的至少两套功率控制参数。
3.为一个PUCCH resource set list或resource list配置N套功率控制参数。其中，一个PUCCH resource set list包括M(M≥1，M是正整数)个PUCCH resource set，一个PUCCH resource list包括M(M≥1，M是正整数)个PUCCH resource。与现有技术不同的是，一个PUCCH resource set list或resource list不再只对应一套功率控制参数，而是对应多套功率控制参数。
对于其他上行信号(如PARCH)的功率控制来说，为M个uplink resource/resource set配置N套功率控制参数的具体实现可以类似于上述1-3的描述，这里不再赘述。
结合第一方面或第二方面，在一些可选实施例中，N套功率控制参数可包括：在M个上行信号资源或上行信号资源集合上采用单天线面板发射上行信号的功率控制参数，和/或，在M个上行信号资源或上行信号资源集合上采用多个天线面板发射上行信号的功率控制参数。
结合第一方面或第二方面，在一些可选实施例中，配置N套功率控制参数的方式可以包括以下方式：
方式1.针对每个panel分别配置功率控制参数(per panel配置方式)
具体的，为M个uplink resource/resource set配置(K+Q)套功率控制参数，即N＝K+Q，其中K套功率控制参数分别配置给K个panel单独传输上行信号时使用，Q套功率控制参数配置给多panel传输上行信号时使用。Q≥1，Q是正整数。K个panel是指终端的多个panel，K≤L，L表示终端的panel数量。
方式2.依据传输方式配置功率控制参数
具体的，可以根据传输方式为M个uplink resource/resource set配置N套功率控制参数，一种传输方式可以对应一套或多套功率控制参数。
这里，传输方式可以包括：单panel传输，多panel传输，单站传输，多站传输中的一种或多种。其中，多panel传输可以具体包括：双panel传输、三panel传输、四panel传输等。单站点传输可能会包括DPS(dynamic point switching)传输方式；多站传输主要描述多点协作传输(coordinated multipoint transmission/reception，CoMP)，其中CoMP可以包括非相干联合发送(non coherent joint transmission，NCJT)、相干联合发送(coherent joint transmission，CJT)、联合发送(joint transmission，JT)等。
可选的，可以为M个uplink resource/resource set共配置2套功率控制参数，即N＝2。在这2套功率控制参数中，一套功率控制参数配置给单panel传输上行信号时使用，另一套功率控制参数配置给多panel传输上行信号时使用。
方式3.类似方式1，但不为多panel传输上行信号配置功率控制参数
具体的，为M个uplink resource/resource set配置K套功率控制参数，即N＝K，这K套功率控制参数分别配置给K个panel单独传输上行信号时使用。至少2个panel传输上行信号时采用的功率控制参数包括该至少2个panel分别单独传输上行信号时采用的功率控制参数。
也即是说，多个panel传输上行信号时使用的功率控制参数复用这多个panel各自对应的单panel传输上行信号时使用的功率控制参数。可选地，多个panel传输上行信号时使用的功率控制参数还可以配合缩放因子(scaling factor)以确保各panel的发射功率总和不超过终端的最大传输功率。K个panel是指终端的多个panel，K≤L，L表示终端的panel数量。
结合第一方面或第二方面，在一些可选实施例中，确定第一功率控制参数的方式可以包括：
方式1.基于网络设备的隐式指示确定第一功率控制参数
具体的，网络设备可以向终端发送M个uplink resource/resource set的spatial relation信息。相应的，终端可以接收网络设备发送的该spatial relation信息。一个uplink  resource/resource set的spatial relation信息指示参考信号和该uplink resource/resource set承载的上行信号具有相同空间特性参数。该spatial relation信息指示的参考信号即前面空间相关(Spatial Relation)信息的介绍内容中提及的源参考信号，可以包括SRS、CSI-RS等。
可选的，终端可以基于spatial relation信息确定出第一功率控制参数。
可选的，终端基于spatial relation信息确定出第一功率控制参数可以包括以下几种实现方式：
(1)第1种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的spatial relation信息指示的参考信号所采用的panel来确定。
(2)第2种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的spatial relation信息指示的参考信号所属的资源或资源集合或资源分组(resource/resource set/resource group)来确定。
(3)第3种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的spatial relation信息指示的参考信号的个数来确定。
方式2.基于网络设备的显示指示确定第一功率控制参数
具体的，网络设备可以向终端发送以下一项或多项指示信息：天线面板的开关指示信息、天线面板的标识信息(panel ID)或上行信号的传输方式的指示信息。相应的，终端可以接收网络设备发送的指示信息。其中，上行信号的传输方式可包括单panel传输上行信号和多panel传输上行信号。这些信息直接指示出了终端在M个uplink resource/resource set上传输上行信号应该采用的panel或panel个数。终端根据这些信息中的一项或多项便可以确定上行信号传输需要使用的第一功率控制参数。也即是说，终端可以基于网络设备的显式指示确定采用哪一套或哪些套功率控制参数。
天线面板的开关指示信息可指示开启哪些panel，或关闭哪些panel。若该开关指示信息指示关闭哪些panel，则开启的panel即关闭的panel之外的终端panel。第一功率控制参数即N套功率控制参数中开启的panel对应的功率控制参数。具体实现中，天线面板的开关指示信息可以是多个比特，其中一个比特对应一个panel，指示这个panel的开启或关闭。实际应用中，该开关指示信息的实现还可以有其他方式，本申请对此不作限制。
天线面板的标识信息(panel ID)表示的panel即终端在M个uplink resource/resource set上传输上行信号应该采用的panel。第一功率控制参数即N套功率控制参数中该标识信息表示的panel对应的功率控制参数。
通过上行信号的传输方式的指示信息确定第一功率控制参数的实现方式适用前述配置N套功率控制参数的方式2。第一功率控制参数为上行信号的传输方式对应的那一套功率控制参数。
本申请中，不限于该高层参数指示的参考信号(如SRS或CSI-RS)，本申请中提及的spatial relation信息指示的参考信号还可以包括：用于非码本non-coodebook传输的uplink resource/resource set(如non-codebook usage的SRS resource set)所关联的参考信号(如CSI-RS)。这里，用于非码本non-coodebook传输的uplink resource/resource set所关联的参考信号是指与用于非码本non-coodebook传输的uplink resource/resource set承载的上行信号具有QCL关系或者空间相关关系的参考信号。
本申请中，单panel传输就是指，终端设备在第一时间单元内，使用一个panel传输一个或多个上行信号。多panel传输就是指，终端设备在第一时间单元内，使用至少两个panel传输一个或多个上行信号。可选地，当多panel传输多个上行信号时，该多个上行信号至少有部分在时间上重叠。第一时间单元可以为一个或多个符号(symbol)、一个或多个时隙(slot)、一个或多个子帧(subframe)等。
第三方面，本申请提供了一种信号传输方法，应用于终端侧，该方法可包括：如果在M个上行信号资源或上行信号资源集合上采用终端的H个天线面板传输上行信号，且基于这H个天线面板各自对应的功率控制参数确定出的这H个天线面板各自对应的第一发射功率的总和大于终端的最大发射功率，则终端可以确定这H个天线面板中至少一个天线面板各自对应的第二发射功率。在M个上行信号资源或上行信号资源集合上，终端可以基于至少一个天线面板各自对应的第二发射功率采用所述至少一个天线面板传输上行信号。这至少一个天线面板各自对应的第二发射功率的总和小于或等于终端的最大传输功率。H≥2，H是正整数。
第四方面，本申请提供了一种信号传输方法，应用于网络设备侧，该方法可包括：网络设备向终端发送配置信息，配置信息指示为H个上行信号配置的功率控制参数；H≥2，H是正整数；H个上行信号承载于第一时间单元内；基于H个上行信号各自对应功率控制参数确定的H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率。网络设备在第一时间单元内接收H个上行信号中至少一个上行信号，至少一个上行信号各自对应的第二发射功率的总和小于或等于终端的最大传输功率，至少一个上行信号各自对应的第二发射功率是根据H个上行信号各自相关的参考信号的信道质量信息确定的。
一种可能的情况是，H个上行信号中有部分上行信号不会被分配到发射功率或者该部分上行信号不会被发射。
结合第三方面或第四方面，在一些可选实施例中，配置信息可以具体指示为M个uplink resource/resource set配置的功率控制参数。为M个uplink resource/resource set配置的功率控制参数可包括为H个上行信号配置的功率控制参数。M个uplink resource/resource set可以被配置有多套功率控制参数(参考方案1)，也可以仅被配置1套功率控制参数。
结合第三方面或第四方面，在一些可选实施例中，M个uplink resource/resource set可配置有多套功率控制参数，即第一方面和第二方面描述的方案中配置的N套功率控制参数。此时，H个天线面板各自对应的功率控制参数为N套功率控制参数。
在M个uplink resource/resource set配置有多套功率控制参数的场景下，可以通过下述方法为各个panel对应的上行信号分配发射功率：
(1)首先，说明如何确定H个上行信号各自对应的第一发射功率。
具体的，参考前述方案1可知，终端可以基于网络设备的隐式指示(即spatial relation信息)或显示指示(即panel的开关指示信息、panel ID等)确定终端传输H个上行信号时使用的功率控制参数，即前述方案1中提及的第一功率控制参数。然后，终端可以根据第一功率控制参数确定H个上行信号各自对应的第一发射功率。
(2)其次，确定H个上行信号l中的至少一个上行信号对应的第二发射功率。
终端可以根据各上行信号相关的路径损耗，优先为路径损耗较小的上行信号对应的上 行信号分配发射功率。也即是说，路径损耗较小的上行信号优先于路径损耗较大的上行信号被分配功率。
具体的，
根据上行信号相关的路径损耗从小到大的顺序，终端可以执行至少一轮功率分配。其中：
在第i(i是正整数，i小于等于H)轮功率分配中，从未被确定第二发射功率的上行信号中确定当前路径损耗最小的上行信号，可表示为S i-minPL。分配给S i-minPL的实际发射功率可以为min{P′ i，Pmax}。这里，S i-minPL的实际发射功率即S i-minPL对应的第二发射功率，Pmax表示终端的最大传输功率，min表示取最小值。P i-r表示终端的最大发射功率中除去前面i-1轮中已分配的发射功率后剩余的发射功率。P′ i表示S i-minPL对应的第一发射功率。
具体的，在第i轮功率分配可以通过下述算法表示：
P i＝min{P r，P′ i}，
其中，当i＝1时，Pr＝Pmax，当i＞1时，Pr＝Pmax-P i-1-…-P 1；
其中，P i表示S i-minPL对应的第二发射功率，P′ i表示S i-minPL对应的第一发射功率；Pmax表示终端的最大传输功率，Pr是所述终端的最大发射功率中除去前面i-1轮功率分配中已分配的发射功率后剩余的发射功率，0≤Pr≤Pmax；S i-minPL表示第i轮功率分配中路径损耗最小的未被确定第二发射功率的天线面板。
可选的，各个panel传输的上行信号各自相关的路径损耗可以根据各个panel传输的上行信号对应的用于估计路径损耗的参考信号计算得到。
结合第三方面或第四方面，在一些可选实施例中，M个uplink resource/resource set可仅配置1套功率控制参数。此时，H个上行信号各自对应的功率控制参数均为同一套功率控制参数。
在M个uplink resource/resource set仅配置1套功率控制参数的场景下，终端可以根据这一套功率控制参数确定H个panel各自传输的上行信号对应的第一发射功率，但需要考虑到各个panel各自对应路径损耗不同。
具体的，H个天线面板各自传输的上行信号对应的第一发射功率可以基于以下参数确定：这一套功率控制参数中包括上行信号的目标接收功率p0、路径损耗补偿因子alpha，以及基于H个panel各自传输的上行信号的spatial relation信息指示的参考信号测量得到的路径损耗。
在M个uplink resource/resource set仅配置1套功率控制参数的场景下，终端同样可以根据各上行信号相关的路径损耗，优先为路径损耗较小的上行信号对应的上行信号分配发射功率。具体实现可参考前述M个uplink resource/resource set配置有N套功率控制参数的场景下的功率分配方式，这里不再赘述。
结合第三方面或第四方面，在一些可选实施例中，panel的个数可以由以下一项或多项确定：M个uplink resource/resource set的spatial relation信息的个数、spatial relation信息指示的参考信号的个数、spatial relation信息指示的参考信号(如用于波束训练的SRS)所属的资源或资源集合或资源分组。
结合第三方面或第四方面，在一些可选实施例中，各个panel各自传输的上行信号相关 的路径损耗可以根据各个panel各自传输的上行信号对应的用于估计路径损耗的参考信号计算得到。可选的，一个panel传输的上行信号对应的用于估计路径损耗的参考信号可以是该上行信号spatial relation信息指示的参考信号。在可选的，一个panel传输的上行信号对应的用于估计路径损耗的参考信号可以是该panel传输的上行信号对应的功率控制参数中包括的路径损耗参考信号。
第三方面和第四方面描述的方案通过优先为PL较小的panel对应的上行信号分配发射功率，PL较小的传输路径的传输质量可以得到保障，可提高系统鲁棒性、稳定性。
第五方面，提供了一种终端，包括多个功能单元，用于相应的执行第一方面可能的实施方式中的任意一种所提供的方法。
第六方面，提供了一种网络设备，包括多个功能单元，用于相应的执行第二方面可能的实施方式中的任意一种所提供的方法。
第七方面，提供了一种终端，包括多个功能单元，用于相应的执行第三方面可能的实施方式中的任意一种所提供的方法。
第八方面，提供了一种网络设备，包括多个功能单元，用于相应的执行第四方面可能的实施方式中的任意一种所提供的方法。
第九方面，提供了一种终端，用于执行第一方面描述的信号传输方法。所述终端可包括：存储器以及与所述存储器耦合的处理器、发射器和接收器，其中：所述发射器用于与向另一无线通信设备，例如网络设备，发送信号，所述接收器用于接收所述另一无线通信设备，例如网络设备，发送的信号，所述存储器用于存储第一方面描述的信号传输方法的实现代码，所述处理器用于执行所述存储器中存储的程序代码，即执行第一方面可能的实施方式中的任意一种所描述的信号传输方法。
第十方面，提供了一种网络设备，用于执行第二方面描述的信号传输方法。所述网络设备可包括：存储器以及与所述存储器耦合的处理器、发射器和接收器，其中：所述发射器用于与向另一无线通信设备，例如终端，发送信号，所述接收器用于接收所述另一无线通信设备，例如终端，发送的信号，所述存储器用于存储第二方面描述的信号传输方法的实现代码，所述处理器用于执行所述存储器中存储的程序代码，即执行第二方面可能的实施方式中的任意一种所描述的信号传输方法。
第十一方面，提供了一种终端，用于执行第三方面描述的信号传输方法。所述终端可包括：存储器以及与所述存储器耦合的处理器、发射器和接收器，其中：所述发射器用于与向另一无线通信设备，例如网络设备，发送信号，所述接收器用于接收所述另一无线通信设备，例如网络设备，发送的信号，所述存储器用于存储第三方面描述的信号传输方法的实现代码，所述处理器用于执行所述存储器中存储的程序代码，即执行第三方面可能的实施方式中的任意一种所描述的信号传输方法。
第十二方面，提供了一种网络设备，用于执行第四方面描述的信号传输方法。所述网络设备可包括：存储器以及与所述存储器耦合的处理器、发射器和接收器，其中：所述发射器用于与向另一无线通信设备，例如终端，发送信号，所述接收器用于接收所述另一无线通信设备，例如终端，发送的信号，所述存储器用于存储第四方面描述的信号传输方法的实现代码，所述处理器用于执行所述存储器中存储的程序代码，即执行第四方面可能的 实施方式中的任意一种所描述的信号传输方法。
第十三方面，提供了一种通信系统，所述通信系统包括：网络设备和终端，其中：所述网络设备可以是第一方面描述的终端。所述终端可以是第二方面描述的网络设备。
第十四方面，提供了一种通信系统，所述通信系统包括：网络设备和终端，其中：所述网络设备可以是第三方面描述的终端。所述终端可以是第四方面描述的网络设备。
第十五方面，提供了一种计算机可读存储介质，所述可读存储介质上存储有指令，当其在计算机上运行时，使得计算机执行上述第一方面，或上述第二方面，或上述第三方面，或上述第四方面描述的信号传输方法。
结合第十六方面，提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面，或上述第二方面，或上述第三方面，或上述第四方面描述的信号传输方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请提供的一种无线通信系统的架构示意图；
图2是现有协议中定义的SRS-ResourceSet IE的示意图；
图3是现有协议中定义的PUSCH-PowerControl IE的示意图；
图4A-图4B是现有协议中定义的PUCCH-Config IE和PUCCH-PowerControl IE的示意图；
图5是本申请提供的一种信号传输方法的总体流程示意图；
图6是本申请中几种在SRS resource上传输SRS时采用的panel的示意图；
图7A是本申请中一种SRS resource set采用2个panel的示意图；
图7B是本申请中另一种SRS resource set采用2个panel的示意图；
图7C是本申请中再一种SRS resource set采用2个panel的示意图；
图8是本申请提供的另一种信号传输方法的总体流程示意图；
图9是本申请的一个实施例提供的终端设备的硬件架构示意图；
图10是本申请的一个实施例提供的网络设备的硬件架构示意图；
图11是本申请的提供的无线通信系统，终端和网络设备的功能框图；
图12是本申请的提供一种处理器的结构示意图。
具体实施方式
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。
图1示出了本申请涉及的无线通信系统100。无线通信系统100可以工作在高频频段上，不限于长期演进(Long Term Evolution，LTE)系统，还可以是第五代移动通信(the 5th Generation，5G)系统、新空口(NR)系统，机器与机器通信(Machine to Machine，M2M)系统、未来的通信系统，如第六代移动通信系统等。如图1所示，无线通信系统100可包 括：一个或多个网络设备101，一个或多个终端103，以及核心网(未示出)。其中：
网络设备101可以为基站，基站可以用于与一个或多个终端进行通信，也可以用于与一个或多个具有部分终端功能的基站进行通信(比如宏基站与微基站，如接入点，之间的通信)。基站可以是时分同步码分多址(Time Division Synchronous Code Division Multiple Access，TD-SCDMA)系统中的基站收发台(Base Transceiver Station，BTS)，也可以是LTE系统中的演进型基站(Evolutional Node B，eNB)，以及5G系统、新空口(NR)系统中的基站。另外，基站也可以为传输点(Transmission and Reception Point，TRP)、接入点(Access Point，AP)、中心单元(Central Unit，CU)或其他网络实体，并且可以包括以上网络实体的功能中的一些或所有功能。
终端103可以分布在整个无线通信系统100中，可以是静止的，也可以是移动的。在本申请的一些实施例中，终端103可以是用户设备(user equipment，UE)、移动设备、移动台(mobile station)、移动单元(mobile unit)、M2M终端、无线单元，远程单元、终端代理、移动客户端等等。
本申请中，无线通信系统100是多波束通信系统。其中：
如图1所示，网络设备101被配置有多个天线面板105，一个天线面板105包括多个天线阵子(antenna element)107。终端103被配置有多个天线面板105，一个天线面板105包括多个天线阵子107。网络设备101被配置的天线面板105的个数与终端103被配置的天线面板105的个数可以不同，也可以相同。网络设备101的单个天线面板105包括的天线阵子107的数量与终端103的单个天线面板105包括的天线阵子107的数量可以不同，也可以相同。
随着天线封装技术的不断演进，网络设备101或终端103的多个天线面板能够呈现出低相关性，多个天线面板可以独立形成发射波束，从而网络设备101或终端103的一个发射机可以通过不同的发射波束发送数据流。
本申请将主要讨论无线通信系统100中的上行信号传输的功率控制。上行信号传输的功率控制是整个无线通信系统的关键，一方面需要达到满足服务质量(QoS)所需的足够的每比特发送能量，另一方面需要最小化对系统其他用户的干扰。为了实现这些目的，上行功率控制必须自适应无线传播信道特性。
但是，针对于同一个终端的不同天线面板发射信号在终端侧的功率控制，现有协议内容并没有涉及。
下面简单介绍现有协议3gpp 38.331 R15版本、3gpp 38.213 R15版本中针对于上行信号，如探测参考信号(sounding reference signal，SRS)、物理上行共享信道(physical uplink shared channel，PUSCH)、物理上行控制信道(physical uplink control channel，PUCCH)等，规定的功率控制。
1.SRS的功率控制
图2示出了现有协议3gpp 38.331 R15版本中定义的SRS-config IE中的SRS-ResourceSet域。如图2所示，现有协议中，SRS的功率分配方式是每个SRS资源集合(SRS resource set)中的参考信号共享同一套功率控制参数。这里，功率控制参数包括：alpha、p0、pathlossReferenceRS。其中，alpha表示路径损耗补偿因子，p0表示目标接收功 率，pathlossReferenceRS表示用于估计路径损耗的参考信号。
基于SRS-ResourceSet域中定义的功率控制参数，现有协议3gpp 38.213 R15版本中规定了SRS传输功率，具体如下：
如果UE在服务小区c的载波f使用索引值为l的SRS功率控制调整状态值，UE在SRS传输时机i发送的SRS传输功率为P SRS,b,f,c(i,q,l)：
Figure PCTCN2019108759-appb-000001
其中，
-P CMAX,f,c(i)是为服务小区c的载波f在SRS传输时机i配置的UE传输功率。
-P O_SRS,b,f,c(q s)是通过高层参数p0为服务小区c的载波f上行BWP b配置的。SRS资源集合q s是通过高层参数SRS-ResourceSet和SRS-ResourceSetId配置的。P O_SRS,b,f,c(q s)用来表征目标接收功率。
-M SRS,b,f,c(i)是为服务小区c和μ的载波f上行BWP b在SRS传输时机i配置的SRS的传输带宽，用资源块个数表示。
-α SRS,b,f,c(q s)是通过高层参数alpha为服务小区c的载波f上行BWP b的SRS资源集合q s配置的，是路径损耗补偿因子。
-PL b,f,c(q d)是UE通过下行BWP上的参考信号索引q d计算得到的路径损耗，该参考信号与服务小区c的载波f上行BWP b的SRS资源集合q s配对。其中，与SRS资源集合q s关联的参考信号索引q d是由高层参数pathlossReferenceRS中的ssb-Index(用于指示SS/PBCH的资源索引)或者高层参数pathlossReferenceRS中的csi-RS-Index(用于指示CSI-RS的资源索引)。是终端基于RSRP的路径损耗测量值。
上述算法中涉及的其他参数以及其取值的计算方法都可以参考协议3gpp 38.213 R15，这里不再赘述。
可以看出，现有协议中规定，每个SRS资源集合(SRS resource set)共用一套功控参 数。也即是说，一个SRS资源集合中的每一个参考信号的发送功率是相同的。SRS的开环功率控制参数是通过高层信令配置的。当UE使用多个panel向一个TRP的多个panel或者多个TRP发射SRS时，UE的这多个panel的路径是不同的，信道情况也不同，若仍然使用相同的功控参数，那么功率利用效率就低。此外，当一个SRS资源集合承载的SRS通过多个panel发送时，如果每个panel均采用现有协议规定的功率控制参数，则这多个panel的总发送功率可能会超过UE的最大发送功率。
2.PUSCH的功率控制
现有技术中，PUSCH的功率分配是通过高层信令，或者高层信令(RRC)和物理层信令(DCI)共同决定。RRC信令配置的是开环功率控制参数，DCI指示的是闭环功率控制参数。但是，在某个特定场景(如初始接入场景、grant free场景、with grant场景)下，一份PUSCH资源只对应一套功率控制参数。
图3示出了现有协议3gpp 38.331 R15版本中定义的PUSCH-config IE，其中定义了PUSCH的功率控制参数。这里，功率控制参数包括：msg3-Alpha、p0-NominalWithoutGrant、P0-PUSCH-AlphaSet、ConfiguredGrantConfig指示P0-PUSCH-AlphaSetId，PUSCH-PathlossReferenceRS。其中，msg3-Alpha表示路径损耗补偿因子，p0-NominalWithoutGrant表示目标接收功率，PUSCH-PathlossReferenceRS表示用于估计路径损耗的参考信号。
基于PUSCH-config IE中定义的功率控制参数，现有协议3gpp 38.213 R15版本中规定了PUSCH传输功率，具体如下：
如果UE在服务小区c的载波f使用索引值为j的集合配置和索引值为l的SRS功率控制调整状态值，那么UE确定PUSCH在传输时机i的传输功率为P PUSCH,b,f,c(i,j,q d,l)：
Figure PCTCN2019108759-appb-000002
[dBm]
其中
-P CMAX,f,c(i)是为服务小区c的载波f在PUSCH传输时机i配置的UE传输功率。
-P O_PUSCH,b,f,c(j)是由成员P O_NOMINAL_PUSCH,f,c(j)和成员P O_UE_PUSCH,b,f,c(j)的和构成的一个参数，其中j∈{0,1,...,,J-1}。
-
Figure PCTCN2019108759-appb-000003
是为服务小区c和μ的载波f上行BWP b在PUSCH传输时机i配置的PUSCH资源分配的带宽，用资源块个数表示。
-PL b,f,c(q d)是UE通过下行BWP上的参考信号索引q d计算得到的路径损耗，该参考信号与服务小区c的载波f上行BWP b的SRS资源集合q s配对。
上述算法中涉及的其他参数以及其取值的计算方法都可以参考协议3gpp 38.213 R15，这里不再赘述。
可以看出，PUSCH的功率控制参数是通过高层信令配置，或者高层信令与物理层信令结合配置的，但是每一份PUSCH资源只对应一套功率控制参数。当UE使用多个panel向一个TRP的多个panel或者多个TRP发射PUSCH时，UE的这多个panel的传输路径是不同的，信道情况也不同，若仍然使用相同的功率控制参数，那么功率利用效率就低。此外，当一个PUSCH资源承载的PUSCH通过多个panel发送时，如果每个panel均采用现有协议规定的功率控制参数，则这多个panel的总发送功率可能会超过UE的最大发送功率。
3.PUCCH的功率控制
图4A-图4B示出了现有协议3gpp 38.331 R15版本中定义的PUCCH-config IE和PUCCH-PowerControl IE，其中定义了PUCCH的功率控制参数。可以看出，现有协议中，高层参数resourceSetToAddModList/resourceSetToReleaseList表示的PUCCH resource set list对应一套功率控制参数，即一个PUCCH resource set list中包括的一个或多个PUCCH resource set对应一套功率控制参数。高层参数resourceToAddModList/resourceToReleaseList表示的PUCCH resource list对应一套功率控制参数，即一个PUCCH resource list中包括的一个或多个PUCCH resource对应一套功率控制参数。概括的说，现有协议中，一个PUCCH resource set list或resource list只对应一套功率控制参数。
PUCCH-PowerControl IE中定义了功率控制参数，具体包括：P0-PUCCH、PUCCH-PathlossReferenceRS。其中，P0-PUCCH表示目标接收功率，PUCCH-PathlossReferenceRS表示用于估计路径损耗的参考信号。对于PUCCH来说，路径损耗补偿因子的取值范围可为0至1。为了保证PUCCH的高可靠性，会尽量使PUCCH的发射功率较大，可根据实际情况确定路径损耗补偿因子的取值。
现有协议对基于PUCCH功率控制参数确定PUCCH发射功率的方式类似于SRS和PUSCH的功率控制机制，具体可参考3gpp 38.331 R15版本、3gpp 38.213 R15版本，此处不再赘述。PUCCH也有与SRS、PUSCH一样的问题。
另外，现有协议对PRACH等上行信道也定义了类似SRS、PUSCH和PUCCH的功率控制机制，具体可参考3gpp 38.331 R15版本、3gpp 38.213 R15版本，此处不再赘述。PRACH也有与SRS、PUSCH、PUCCH一样的问题。
为了解决现有的技术问题，适应多panel终端的上行功率控制，本申请提供了一种信号传输方法。下面将详细说明。
首先，介绍本申请涉及的概念。
(1)空间相关(Spatial Relation)信息：用于辅助描述终端发射侧波束赋形信息以及发射流程。
Spatial Relation信息用于指示两种参考信号或信道之间的空间接收参数或空间发送参数关系。这两种参考信号或信道包括目标参考信号或信道，源参考信号或信道。其中，目标参考信号或信道是终端发射的上行参考信号或信道，一般是可以是解调参考信号(demodulation reference signal，DMRS)，探测参考信号(SRS)、PUSCH、PUCCH等；源参考信号或信道(又可称为被引用的参考信号或信道)一般可以是信道状态信息参考信号 (channel state information reference signal，CSI-RS)、探测参考信号(SRS)、同步信号广播信道块(synchronous signal/PBCH block，SS/PBCH block)等。
满足Spatial Relation信息的两个参考信号或信道的空间特性参数是相同的，从而基于源参考信号的资源索引可推断出目标参考信号的空间特性参数。
可选地，空间特性参数包括以下参数中的一种或多种：入射角(angle of arrival，AoA)、主(Dominant)入射角AoA、平均入射角、入射角的功率角度谱(power angular spectrum，PAS)、出射角(angle of departure，AoD)、主出射角、平均出射角、出射角的功率角度谱、终端发送波束成型、终端接收波束成型、空间信道相关性、基站发送波束成型、基站接收波束成型、平均信道增益、平均信道时延(average delay)、时延扩展(delay spread)、多普勒扩展(Doppler spread)、多普勒频移(Doppler shift)、空间接收参数(spatial Rx parameters)、空间发送参数(spatial Tx parameters)等。
这些空间特性参数描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端设备根据Spatial Relation信息完成发射侧波束赋形或发射处理过程。终端可以根据Spatial Relation信息指示的源参考信号的发射波束信息，发射目标参考信号或信道。
(2)波束(beam)
波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术手段。波束赋形技术可以具体为数字波束赋形技术，模拟波束赋形技术，混合数字/模拟波束赋形技术。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道，控制信道和探测信号等，例如，发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。
波束可以分为网络设备的发送波束和接收波束，与终端设备的发送波束和接收波束。网络设备的发送波束用于描述网络设备发送侧波束赋形信息，基站接收波束用于描述网络设备接收侧波束赋形信息，终端设备的发送波束用于描述终端设备发送侧波束赋形信息，终端接收波束用于描述终端设备接收侧波束赋形信息。也即波束用于描述波束赋形信息。
波束可以对应时间资源和或空间资源和或频域资源。
可选地，波束还可以与参考信号资源(例如，波束赋形的参考信号资源)，或者波束赋形信息对应。也即是说，指示波束等同于指示参考信号资源或波束赋形信息。
可选地，波束还可以与参考信号资源关联的信息对应，其中参考信号可以为CSI-RS，SSB，DMRS,相位跟踪参考信号(phase tracking reference signal，PTRS),跟踪参考信号(tracking reference signal或者CSI-RS for tracking,TRS)，SRS等，参考信号资源关联的信息可以是参考信号资源标识，或者QCL信息(特别是type D类型的QCL)，空间相关信息等。其中，参考信号资源标识对应了之前基于该参考信号资源测量时建立的一个收发波束对，通过该参考信号资源索引，终端可推断波束信息。也即是说，指示波束等同于指示参 考信号关联的信息，如参考信号资源标识，或者QCL信息，空间相关信息等。
可选地，波束还可以与空域滤波器(spatial filter/spatial domain filter),空域传输滤波器(spatial domain transmission filter)对应。也即是说，指示波束等同于指示空域滤波器,空域传输滤波器。
其次，介绍本申请提供的技术方案。
(1)方案1：在终端具有L(L＞1，L是正整数)个panel的场景下，为M(M≥1，M是正整数)个上行信号资源或上行信号资源集合(uplink resource/resource set)配置N(N＞1，N是正整数)套功率控制参数。这N套功率控制参数是基于终端的K(K≤L，K是正整数)个panel配置的。也即是说，这N套功率控制参数与终端的多个panel之间存在映射关系。
可选的，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数。这里，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数是指M个uplink resource/resource set中的每一个uplink resource/resource set对应的功率控制参数均可选自N套功率控制参数。换句话说，这N套功率控制参数为M个uplink resource/resource set中的每一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数。这里，至少一个uplink resource/resource set关联这N套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自N套功率控制参数。换句话说，这N套功率控制参数为至少一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数中至少一套功率控制参数。这里，至少一个uplink resource/resource set关联该至少一套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自该至少一套功率控制参数。换句话说，该至少一套功率控制参数为该至少一个uplink resource/resource set的候选(candidate)功率控制参数。
方案1考虑了终端的多个panel对应的多个传输路径，为M个uplink resource/resource set配置了多套功率控制参数。这样，这样终端便可以基于spatial relation信息或其他下行信息(如panel开关指示或者panel ID信息或传输方式)来灵活确定采用哪一套或哪些套功控参数，可实现更加灵活的上行发射功率的调整，可实现上行传输的功率效率和上行传输性能的最大化。后续内容会详细介绍方案1的具体内容，这里先不赘述。
(2)方案2：在多panel传输SRS/PUCCH/PUSCH等上行信号的场景下，根据路径损耗(path loss，PL)为各个panel对应的上行信号分配发射功率，具体优先为PL较小的panel对应的上行信号分配发射功率。Panel对应的上行信号是指panel传输的上行信号。通过优先为PL较小的panel对应的上行信号分配发射功率，PL较小的传输路径的传输质量可以得到保障，可提高系统鲁棒性、稳定性。后续内容会详细介绍方案2的具体内容，这里先不赘述。
本申请中，功率控制参数可包括以下一项或多项：上行信号的目标接收功率、路径损耗补偿因子、路径损耗参考信号。其中，目标接收功率P0是指网络设备能够解调上行信号的最低信号强度，或者说是网络设备期望接受上行信号时的接收功率；路径损耗补偿因子alpha/α是指网络设备通过该补偿因子来决定路径损耗在上行功率控制中的权重；路径损耗参考信号pathloss RS是指终端根据接收到的用于估计路径损耗的参考信号的强度推测出下行路径损耗(PL)并认为上行路径损耗与之相当。可选的，对于SRS、PUSCH来说，功率控制参数可包括上行信号的目标接收功率、路径损耗补偿因子、路径损耗参考信号这三项。可选的，对于PUCCH来说，功率控制参数可包括上行信号的目标接收功率、路径损耗参考信号这两项。
下面详细介绍方案1，方案1主要讨论如何为多panel终端配置传输上行信号的功率控制参数。图5示出了方案1描述的信号传输方法的总体流程图，该方法可包括：
S101，网络设备为M个uplink resource/resource set配置N套功率控制参数。这N套功率控制参数是基于终端的多个panel配置的。这多个panel可以是终端的部分或全部panel，这多个panel的数量为K，K≤L，K是正整数。
可选的，终端可以向网络设备上报终端具有的panel或panel数量，或者终端通过终端能力参数上报其panel ID或panel个数。
S102，网络设备向终端发送配置信息。该配置信息指示为M个uplink resource/resource set配置N套功率控制参数。相应的，终端设备接收到网络设备发送的该配置信息。
可选的，该配置信息可以指示panel与功率控制参数之间的映射。可选的，该配置信息也可以仅指示N套功率控制参数，N套功率控制参数与panel之间的映射可以遵循预设映射规则，该预设映射规则为终端所知。例如，该预设映射规则可以为：功率控制参数与panel按序映射，即：第1套功率控制参数对应第1个panel，第2套功率控制参数对应第2个panel，以此类推。在该示例中，该配置信息仅指示N套功率控制参数即可，无需指示功率控制参数与panel之间的映射，终端根据预设映射规则便知道功率控制参数与panel之间的映射，可以节约信令开销。示例仅仅用于解释本申请，关于该预设映射规则，本申请不做限制。
可选的，该预设映射规则可以通过协议预定义，也可以通过网络设备发送信令指示。当该预设映射规则通过网络设备发送的信令指示时，该信令可以与网络设备指示N套功率控制参数的信令是同一个信令或者是不同的信令。
可选的，网络设备可以通过无线资源控制(radio resource control，RRC)等信令传输该配置信息，即网络设备可以通过静态配置的方式配置N套功率控制参数。网络设备也可以通过MAC CE等信令传输该配置信息，即网络设备可以通过半静态配置的方式配置N套功率控制参数。
S103，网络设备向终端发送spatial relation信息或其他下行信息(如panel的开关指示信息或者panel ID或传输方式的指示信息)。相应的，终端设备接收到网络设备发送的spatial relation信息或其他下行信息。这些信息可用来确定终端在M个uplink resource/resource set上传输上行信号时使用的功率控制参数。
S104，终端设备在M个uplink resource/resource set上传输上行信号，在该M个uplink  resource/resource set上传输上行信号的发射功率依据第一功率控制参数确定，第一功率控制参数选自N套功率控制参数。
第一功率控制参数为终端在该M个uplink resource/resource set上传输上行信号时使用的功率控制参数。第一功率控制参数可以为N套功率控制参数中的一套或多套功率控制参数。
可选的，第一功率控制参数可以根据网络设备发送的spatial relation信息或其他下行信息确定。关于如何确定第一功率控制参数，在后续描述的本申请涉及的方面(二)中会详细介绍，这里先不赘述。
图5中的S103可以是可选步骤。第一功率控制参数也可以是协议预定义的，网络设备不需要进行指示。终端也可以根据终端先前上报的信息，如信道质量测量报告、信道质量优良的panel的标识信息等确定第一功率控制参数，无需网络设备进行指示。终端也可以根据终端侧的测量结果确定第一功率控制参数，无需网络设备进行指示。
对于不同的上行信号，为M个uplink resource/resource set配置N套功率控制参数具体可为：
1.为一个SRS resource set配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个SRS resource set不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个SRS resource set绑定在一起，为这多个SRSresource set配置N套功率控制参数，此时M＞1。
为这多个SRS resource set配置N套功率控制参数具体可包括以下几种情况：
情况1，可选的，这多个SRS resource set中每一个SRS resource set各自对应的功率控制参数均可以选自N套功率控制参数。
情况2，可选的，这多个SRS resource set中至少有一个SRS resource set各自对应的功率控制参数均可以选自N套功率控制参数。
情况3，可选的，这多个SRS resource set中至少有一个SRS resource set各自对应的功率控制参数可以选自N套功率控制参数中的至少两套功率控制参数。
举例说明，假定这多个SRS resource set是SRS resource set 0，SRS resource set 1，SRS resource set 2，N套功率控制参数为参数0至参数3。那么，情况1可如表1示例性所示，情况2可如表2示例性所示，情况3可如表3示例性所示：
Figure PCTCN2019108759-appb-000004
表1
从表1可以看出，SRS resource set 0，SRS resource set 1，SRS resource set 2中每一个SRS resource set对应的功率控制参数均可选自参数0至参数3。
Figure PCTCN2019108759-appb-000005
Figure PCTCN2019108759-appb-000006
表2
从表2可以看出，SRS resource set 0，SRS resource set 1，SRS resource set 2中的SRS resource set 0和SRS resource set 1对应的功率控制参数均可选自参数0至参数3，SRS resource set 2对应的功率控制参数为参数2。
Figure PCTCN2019108759-appb-000007
表3
从表3可以看出，SRS resource set 0，SRS resource set 1，SRS resource set 2中的SRS resource set 0和SRS resource set 1对应的功率控制参数均可选自参数0和参数1，SRS resource set 2对应的功率控制参数为参数1。
2.为一个PUSCH resource配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个PUSCH resource不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个PUSCH resource绑定在一起，为这多个PUSCH resource配置N套功率控制参数，此时M＞1。
类似的，为这多个PUSCH resource配置N套功率控制参数具体可包括以下几种情况：
情况1，可选的，这多个PUSCH resource中每一个PUSCH resource各自对应的功率控制参数均可以选自N套功率控制参数。
情况2，可选的，这多个PUSCH resourcet中至少有一个PUSCH resource各自对应的功率控制参数均可以选自N套功率控制参数。
情况3，可选的，这多个PUSCH resource中至少有一个PUSCH resource各自对应的功率控制参数可以选自N套功率控制参数中的至少两套功率控制参数。
3.为一个PUCCH resource set list或resource list配置N套功率控制参数。其中，一个PUCCH resource set list包括M(M≥1，M是正整数)个PUCCH resource set，一个PUCCH resource list包括M(M≥1，M是正整数)个PUCCH resource。与现有技术不同的是，一个PUCCH resource set list或resource list不再只对应一套功率控制参数，而是对应多套功率控制参数。
对于其他上行信号(如PARCH)的功率控制来说，为M个uplink resource/resource set配置N套功率控制参数的具体实现可以类似于上述1-3的描述，这里不再赘述。
可以看出，方案1考虑了终端的多个panel对应的多个传输路径，为M个uplink resource/resource set配置了多套功率控制参数。这样，终端便可以根据spatial relation信息或其他下行信息(如panel的开关指示信息或者panel ID或传输方式的指示信息)选择合适的功率控制参数，灵活确定上行发射功率，提高终端功率利用效率。
以SRS为例进行说明，假设网络设备基于终端的panel-0和panel-1为每一个SRS  resource set配置的功率控制参数如表4所示(M＝1，N＝3)：
天线面板 SRS功率控制参数
panel-0 参数0
panel-1 参数1
panel-0和panel-1 参数2
表4
其中，表4的含义为：终端仅采用panel-0传输SRS所使用的功率控制参数为参数0，终端仅采用panel-1传输SRS所使用的功率控制参数为参数1，终端采用panel-0和panel-1传输SRS所使用的功率控制参数为参数2。
从上述示例可以看出，终端传输SRS时使用的功率控制参数依据终端传输SRS采用的panel确定，区别考虑了3种panel使用情况。终端可以根据实际的panel使用情况从3套功率控制参数中选择相应的功率控制参数，可以更加灵活的适应实际信道情况，提高功率利用效率。
本申请中，单panel传输就是指，终端设备在第一时间单元内，使用一个panel传输一个或多个上行信号。多panel传输就是指，终端设备在第一时间单元内，使用至少两个panel传输一个或多个上行信号。可选地，当多panel传输多个上行信号时，该多个上行信号至少有部分在时间上重叠。第一时间单元可以为一个或多个符号(symbol)、一个或多个时隙(slot)、一个或多个子帧(subframe)等。
下面结合图6进行举例说明：若第一时间单元为1个slot，那么，slot 0属于单panel传输SRS，slot 1-4均属于多panel传输。若第一时间单元为ofdm symbol，那么，slot0、slot1属于单panel传输，slot2和slot4属于多panel传输。slot3中，panel-0传输的SRS和panel-1传输的SRS不重叠的symbol属于单panel传输，panel-0传输的SRS和panel-1传输的SRS重叠的symbol属于多panel传输。
下面详细说明方案1涉及的几个方面(一)至(二)。
(一)配置N套功率控制参数的方式
方式1.针对每个panel分别配置功率控制参数(per panel配置方式)
具体的，为M个uplink resource/resource set配置(K+Q)套功率控制参数，即N＝K+Q，其中K套功率控制参数分别配置给K个panel单独传输上行信号时使用，Q套功率控制参数配置给多panel传输上行信号时使用。Q≥1，Q是正整数。K个panel是指终端的多个panel，K≤L，L表示终端的panel数量。
以SRS为例进行说明，假设K个panel为panel-0和panel-1，那么方式1为每一个SRS resource set配置的N套功率控制参数可以如表5示例性所示：
天线面板 SRS功率控制参数
panel-0 参数0
panel-1 参数1
panel-0和panel-1 参数2
表5
其中：
参数0是一套功率控制参数，配置给仅采用panel-0传输SRS时使用；
参数1是一套功率控制参数，配置给仅采用panel-1传输SRS时使用；
参数2可以是一套功率控制参数(Q＝1)，配置给panel-0和panel-1传输SRS时使用，此时panel-0的发射功率控制和panel-1的发射功率控制都遵循这一套功率控制参数；参数2也可以是两套功率控制参数(Q＝2)，配置给panel-0和panel-1传输SRS时使用，此时panel-0的发射功率控制遵循其中一套功率控制参数，panel-1的发射功率控制遵循其中另一套功率控制参数。
在参数2是两套功率控制参数(Q＝2)的情况下，可选的，参数2中用于panel-0的一套功率控制参数通常可以不同于参数0(即仅采用panel-0传输SRS时使用的功率控制参数)。因为在仅采用panel-0传输SRS时使用的参数0对应的发射功率会接近或等于终端的最大发射功率，以提高功率利用率，而在panel-0和panel-1传输SRS时参数2包括的两套功率控制参数各自对应的发射功率总和才会接近或等于终端的最大发射功率，因此，参数2中用于panel-0的一套功率控制参数对应的发射功率会小于参数0对应的发射功率。同理，可选的，参数2中用于panel-1的一套功率控制参数通常可以不同于参数1，参数2中用于panel-1的一套功率控制参数对应的发射功率会小于参数1对应的发射功率。
表5仅仅用于解释本申请，表5和其他表格中的相同命名的参数并不代表其取值也一样。实际应用中，当K＞2时，多panel传输SRS的情况会更多，包括2个panel传输SRS的情况，3个panel传输SRS的情况，4个panel传输SRS的情况等等。对于多于2个panel传输SRS的情况，配置的功率控制参数的实现可参考表5中参数2的实现。例如，对于3个panel传输SRS的情况，配置给3个panel传输SRS的功率控制参数可以只是一套功率控制参数，此时3个panel的发射功率控制共同遵循这一套功率控制参数；配置给3个panel传输SRS的功率控制参数也可以是三套功率控制参数，此时3个panel的发射功率控制各自遵循一套功率控制参数；配置给3个panel传输SRS的功率控制参数还可以是两套功率控制参数，此时3个panel中的某2个panel的发射功率控制共同遵循一套功率控制参数，剩余1个panel的发射功率控制遵循另一套功率控制参数。
可以看出，在采用方式1配置N套功率控制参数的情况下，终端在确定出传输上行信号所采用的panel的条件下，便可以从该N套功率控制参数中选择出用于传输上行信号的功率控制参数，即第一功率控制参数。
方式2.依据传输方式配置功率控制参数
具体的，可以根据传输方式为M个uplink resource/resource set配置N套功率控制参数，一种传输方式可以对应一套或多套功率控制参数。
这里，传输方式可以包括：单panel传输，多panel传输，单站传输，多站传输。其中，多panel传输可以具体包括：双panel传输、三panel传输、四panel传输等。单站点传输可能会包括DPS(dynamic point switching)传输方式；多站传输主要描述多点协作传输(coordinated multipoint transmission/reception，CoMP)，其中CoMP可以包括非相干联合发送(non coherent joint transmission，NCJT)、相干联合发送(coherent joint transmission，CJT)、 联合发送(joint transmission，JT)等。
以SRS为例进行说明，方式2为每一个SRS resource set配置的N套功率控制参数可以如表6示例性所示：
传输方式 SRS功率控制参数
单panel传输 参数0
双panel传输 参数1
三panel传输 参数2
DPS 参数3
NCJT 参数4
CJT 参数5
JT 参数6
表6
其中：
参数0是配置给单panel传输SRS时使用的功率控制参数；可选的，参数0可以是一套功率控制参数，可选的，参数0也可以是多套功率控制参数；
参数1是配置给双panel传输SRS时使用功率控制参数；可选的，参数1可以是一套功率控制参数，可选的，参数1也可以是多套功率控制参数；
参数2是配置给三panel传输SRS时使用功率控制参数；可选的，参数2可以是一套功率控制参数，可选的，参数2也可以是多套功率控制参数；
参数3是配置给采用DSP传输方式传输SRS时使用功率控制参数；可选的，参数3可以是一套功率控制参数，可选的，参数3也可以是多套功率控制参数；
参数4是配置给采用NCJT传输方式传输SRS时使用功率控制参数；可选的，参数4可以是一套功率控制参数，可选的，参数4也可以是多套功率控制参数；
参数5是配置给采用CJT传输方式传输SRS时使用功率控制参数；可选的，参数5可以是一套功率控制参数，可选的，参数5也可以是多套功率控制参数；
参数6是配置给采用JT传输方式传输SRS时使用功率控制参数；可选的，参数6可以是一套功率控制参数，可选的，参数6也可以是多套功率控制参数。
可选的，可以为M个uplink resource/resource set共配置2套功率控制参数，即N＝2。在这2套功率控制参数中，一套功率控制参数配置给单panel传输上行信号时使用，另一套功率控制参数配置给多panel传输上行信号时使用。
以SRS为例进行说明，假设基于终端的4个panel(panel-0至panel-3)配置功率控制参数，那么为每一个SRS resource set配置的2套功率控制参数可以如表9示例性所示：
Figure PCTCN2019108759-appb-000008
Figure PCTCN2019108759-appb-000009
表7
其中：
参数0是一套功率控制参数，配置给单panel传输SRS时使用；
参数1是一套功率控制参数，配置给多panel传输SRS时使用，此时各个panel的发射功率控制都遵循这一套功率控制参数；
表7中，单panel传输SRS包括4种情况：仅采用panel-0传输SRS，仅采用panel-1传输SRS，仅采用panel-2传输SRS，仅采用panel-3传输SRS。这4种情况的单panel传输的发射功率控制均遵循参数0。多panel传输SRS包括3种情况：panel-0和panel-2传输SRS，panel-1和panel-3传输SRS，panel-0至panel-3这4个panel传输SRS。这3种情况的多panel传输的发射功率控制均遵循参数1。表7仅用于解释本申请，不应构成限定。
可以看出，在采用方式2配置2套功率控制参数的情况下，终端仅在确定出传输上行信号所采用的panel数量的条件下，便可以确定出传输上行信号使用的功率控制参数，即第一功率控制参数。
方式3.类似方式1，但不为多panel传输上行信号配置功率控制参数
具体的，为M个uplink resource/resource set配置K套功率控制参数，即N＝K，这K套功率控制参数分别配置给K个panel单独传输上行信号时使用。其中，K套功率控制参数分别对应K个天线面板。至少2个panel传输上行信号时采用的功率控制参数包括该至少2个panel分别单独传输上行信号时采用的功率控制参数。终端可以在各个天线面板上根据各个天线面板各自对应的功率控制参数传输上行信号。
也即是说，多个panel传输上行信号时使用的功率控制参数复用这多个panel各自对应的单panel传输上行信号时使用的功率控制参数。可选地，多个panel传输上行信号时使用的功率控制参数还可以配合缩放因子(scaling factor)以确保各panel的发射功率总和不超过终端的最大传输功率。K个panel是指终端的多个panel，K≤L，L表示终端的panel数量。
以SRS为例进行说明，假设基于终端的4(即K＝4)个panel(panel-0至panel-3)配置功率控制参数，那么方式3为每一个SRS resource set配置的功率控制参数可以如表8示例性所示：
天线面板 SRS功率控制参数
panel-0 参数0
panel-1 参数1
panel-2 参数2
panel-3 参数3
panel-0和panel-2 参数0和参数2(配合缩放因子)
panel-1和panel-3 参数1和参数3(配合缩放因子)
panel-0,panel-1,panel-2和panel-3 参数0至参数3(配合缩放因子)
表8
从表8可以看出，针对单panel传输SRS的情况，方式3和方式1是相同的，都是为每一个panel配置功率控制参数。但是，针对多panel传输SRS的情况，方式3没有为多panel传输SRS额外配置功率控制参数，而是复用了单panel传输时使用的功率控制参数。如表8所示，panel-0和panel-2传输SRS使用的功率控制参数为仅panel-0传输SRS时使用的参数0和仅panel-2传输SRS时使用的参数2，另外还需要缩放因子。当panel-0和panel-2传输SRS时，panel-0的发射功率依据参数0和缩放因子确定，panel-2的发射功率依据参数2和缩放因子确定。缩放因子用于确保多panel传输SRS时，多panel的发射功率总和不超过终端的最大传输功率。多panel可以共享一个缩放因子，也可以对应不同的缩放因子，本申请对此不做限制。
上述方式1至方式3描述的3种配置N套功率控制参数的方式可以结合实施，即对不同的资源可以采用不同方式配置N套功率控制参数。例如，可以采用上述方式1为SRS resource set 1配置N套功率控制参数，可以采用上述方式2为SRS resource set 2配置N套功率控制参数，可以采用上述方式3为SRS resource set 3配置N套功率控制参数。即，不一定针对每一个SRS resource set都采用相同方式配置功率控制参数。示例仅仅用于解释本申请，不应构成限定。
(二)确定第一功率控制参数的方式
1.基于网络设备的隐式指示确定第一功率控制参数
具体的，网络设备可以向终端发送M个uplink resource/resource set的spatial relation信息。相应的，终端可以接收网络设备发送的该spatial relation信息。一个uplink resource/resource set的spatial relation信息指示的参考信号和该uplink resource/resource set承载的上行信号具有相同空间特性参数。该spatial relation信息指示的参考信号即前面空间相关(Spatial Relation)信息的介绍内容中提及的源参考信号，可以包括SRS、CSI-RS等。
可选的，终端可以基于spatial relation信息确定出第一功率控制参数。
可选的，终端基于spatial relation信息确定出第一功率控制参数可以包括以下几种实现方式：
(1)第1种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的spatial relation信息指示的参考信号所采用的panel来确定。
例子1，假设网络设备为每一个SRS resource set配置的N套功率控制参数如上述表5所示。假设某一个SRS resource set的spatial relation信息指示的参考信号为CSI-RS 1，且假设终端接收CSI-RS1所采用的panel或终端上报的CSI-RS1的测量结果所采用的panel如表9所示：
CSI-RS 天线面板
CSI-RS 0 panel-0
CSI-RS 1 panel-1
表9
可选的，表9中CSI-RS对应的panel可以是最近一次接收或测量或上报CSI-RS使用的panel，也可以是某一段时间内多次接收或测量或上报的CSI-RS信道质量最高的一次，或CSI-RS平均信道质量最高时使用的panel。可选地，表9中CSI-RS对应的panel也有可能是终端使用每种panel组合在一段时间内进行信道质量测量，平均质量最高的panel组合。
在例子1中，根据该SRS resource set的spatial relation信息可知，该SRS resource set承载的SRS与CSI-RS 1具有相同的空间特性参数，因此在该SRS resource set上传输SRS时使用的panel与CSI-RS 1采用的panel相同，为panel-1。由于经过波束训练或直接测量CSI确定CSI-RS 1采用panel-1的传输质量良好，因此在该SRS resource set使用panel-1传输SRS的传输质量也良好。
结合上述表5所示的N套功率控制参数，终端便可以依据panel-1确定在该SRS resource set上传输SRS时采用的功率控制参数为参数1，即第一功率控制参数为参数1。
例子2，假设网络设备为每一个SRS resource set配置的N套功率控制参数如上述表5所示。假设某一个SRS resource set包括SRS resource 0和SRS resource 1，其spatial relation信息指示的参考信号包括：CSI-RS 0和CSI-RS 1，其中，CSI-RS 0对应SRS resource 0，CSI-RS 1对应SRS resource 1。且假设终端接收CSI所采用的panel如上述表9所示。
在例子2中，根据该SRS resource set的spatial relation信息可知，SRS resource 1承载的SRS与CSI-RS 1具有相同的空间特性参数，因此SRS resource 0对应的panel与CSI-RS0采用的panel相同，为panel-0。由于经过波束训练确定CSI-RS 0采用panel-0的传输质量良好，因此在SRS resource 0使用panel-0传输SRS的传输质量也良好。类似可知，SRS resource 1对应的panel与CSI-RS 1采用的panel相同，为panel-1。这里，一个SRS resource对应的panel是指在该SRS resource上传输SRS所采用的panel。
在例子2中，假定第一时间单元为一个slot，该SRS resource set上传输SRS所使用的功率控制参数，具体可包括下面几种情况：
如图7A所示，如果该SRS resource set中包括的SRS resource 0和SRS resource 1在时间上不重叠，则在该SRS resource set中传输SRS属于单panel传输SRS：先仅采用panel-0传输SRS，然后仅采用panel-1传输SRS。此时，终端根据前述表5可以确定在SRS resource0上通过panel-0传输SRS使用的功率控制参数为参数0；终端也可以确定在SRS resource 1上通过panel-1传输SRS使用的功率控制参数为参数1。也即是说，第一功率控制参数包括对应SRS resource 0的参数0和对应SRS resource 1的参数1。
如图7B所示，如果该SRS resource set中包括的SRS resource 0和SRS resource 1在时间上全部重叠，则在该SRS resource set中传输SRS属于panel-0和panel-1传输SRS。此时，终端根据前述表5可以确定在该SRS resource set上传输SRS时使用的功率控制参数为参数2。
如图7C所示，如果该SRS resource set中包括的SRS resource 0和SRS resource 1在时间上部分重叠，则在该SRS resource set中传输SRS属于panel-0和panel-1传输SRS。此时，终端根据前述表5可以确定在该SRS resource set上传输SRS时使用的功率控制参数为参数 2。
(2)第2种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的
spatial relation信息指示的参考信号所属的资源或资源集合或资源分组(resource/resource set/resource group)来确定。
这里，源参考信号所属的资源或资源集合或资源分组是指承载源参考信号的资源或资源集合或资源分组。
可选的，资源集合或资源分组的划分规则可以包括以下方式：
方式1：不同资源集合或资源组中的参考信号可以同时发送。
例如：SRS resource set中有参考信号SRS1，SRS2，SRS3，SRS4；其spatial relation分别对应上行波束管理(UL beam management)中的SRS7，SRS8，SRS9，SRS10。其中，SRS7，SRS8是属于set 1(或group1)的参考信号使用panel 1发送，SRS9，SRS10是属于set 2(或group2)的参考信号使用panel 2发送。其中set 1(或group1),set 2(或group2)的划分规则是set 1(或group1)中的参考信号可以与set 2(或group2)中的参考信号可以同时发送。
方式2：同一个资源集合或资源组内的参考信号可以同时发送。
例如，SRS resource set中有参考信号SRS1，SRS2，SRS3，SRS4；其spatial relation分别对应上行波束管理(UL beam management)中的SRS7，SRS8，SRS9，SRS10。其中，SRS7是属于set 1(或group1)的参考信号使用panel1发送，SRS8是属于set 1(或group1)的参考信号使用panel2发送，SRS8属于set 2(或group2)的参考信号使用panel1发送，SRS9属于set 2(或group2)的参考信号使用panel2发送。其中set 1(或group1)，set 2(或group2)的划分规则是set 1(或group1)内的参考信号可以同时发送，set 2(或group2)内的参考信号可以同时发送，set 1(或group1)的参考信号和set 2(或group2)内的参考信号不可以同时发送。
可选的，spatial relation信息指示的参考信号(即源参考信号)可以为CSI-RS。具体实现中，在下行传输CSI-RS时，在接收CSI-RS的resource/resource set/resource group上，终端通过波束训练可以确定接收CSI-RS所采用的一个或多个panel，并记录CSI-RS对应的resource/resource set/resource group与CSI-RS所采用的panel之间的映射。这样，在获知源参考信号CSI-RS所属的resource/resource set/resource group后，终端便可以确定接收CSI-RS的一个或多个panel，然后从N套功率控制参数中确定出该panel对应的功率控制参数，即第一功率控制参数。
例如，网络设备在波束训练前会配置多个参考信号资源集合或参考信号资源组，如resource set 1包括{CSI-RS ID 1,CSI-RS ID 2,CSI-RS ID 3,CSI-RS ID 4},resource set 2包括{CSI-RS ID 5,CSI-RS ID 6,CSI-RS ID 7,CSI-RS ID 8}。resource set 1用于panel 1的接收波束训练，resource set 2用于panel 2的接收波束训练。这样，终端便可以确定接收CSI-RS ID1至CSI-RS ID 8中任意一个或一些CSI-RS的panel，从而确定出第一功率控制参数。
因为源参考信号CSI-RS的空间特性参数和上行信号的空间特性参数相同，传输上行信号采用的panel和接收源参考信号CSI-RS采用的panel相同。
可选的，spatial relation信息指示的参考信号(即源参考信号)可以为SRS。在上行传输SRS时，终端可以记录源参考信号SRS对应的resource/resource set/resource group与SRS所采用的一个或多个panel之间的映射。这样，在获知源参考信号SRS所属的resource/resource set/resource group后，终端便可以确定发射源参考信号SRS的一个或多个panel，然后从N套功率控制参数中确定出该panel对应的功率控制参数，即第一功率控制参数。
例如，网络设备在波束训练前会配置多个参考信号资源集合或参考信号资源组，如resource set 1包括{SRS ID 1,SRS ID 2,SRS ID 3,SRS ID 4},resource set 2包括{SRS ID 5,SRS ID 6,SRS ID 7,SRS ID 8}。resource set 1用于panel 1的发射波束训练，resource set 2用于panel 2的发射波束训练。这样，终端便可以确定发射SRS ID 1至SRS ID 8中任意一个或一些SRS的panel，从而确定出第一功率控制参数。
因为源参考信号SRS的空间特性参数和上行信号的空间特性参数相同，传输上行信号采用的panel和传输源参考信号SRS采用的panel相同。
本申请中，指示panel可等同于指示resource set或resource group。
可选的，上行信号的spatial relation信息的个数可以有一个或多个(多panel传输时)。每个spatial relation信息中可包括一个参考信号索引。可选的，上行信号的spatial relation信息的个数可以只有一个，每个spatial relation信息中可包括一个或多个参考信号(多panel传输时)。
(3)第3种实现方式，第一功率控制参数可以根据M个uplink resource/resource set的spatial relation信息指示的参考信号的个数来确定。
具体的，第3种实现方式适用前述配置N套功率控制参数的方式2。如果一个参考信号对应一个panel，则终端可以根据spatial relation信息指示的参考信号的个数确定出panel的个数，从而确定出传输方式。如果panel的个数等于1，则终端可以确定第一功率控制参数为用于单panel传输SRS的功率控制参数；如果panel的个数≥2，则终端可以确定第一功率控制参数为用于多panel传输SRS的功率控制参数。
例如，在non-codebook传输场景下，1个CSI-RS对应1个panel。假设为M个uplink resource/resource set配置的功率控制参数如前述表6所示。那么，当CSI-RS的个数＝1时，则第一功率控制参数为参数0；当CSI-RS的个数等于2时，则第一功率控制参数为参数1。
不限于上述(1)-(3)描述的3种实现方式，终端基于spatial relation信息确定出第一功率控制参数还可以包括其他实现方式。例如，如果一个resource set/resource对应一个panel，一个resource set/resource对应一个spatial relation信息，那么在前述配置N套功率控制参数的方式2下，终端还可以根据spatial relation信息的个数确定第一功率控制参数。可选地，该spatial relation可以是指激活的(active)spatial relation。
本申请中提及的spatial relation信息扩展了现有协议中定义的描述空间相关信息的高层参数(如pucch-SpatialRelationInfo)。不限于该高层参数指示的参考信号(如SRS或CSI-RS)，本申请中提及的spatial relation信息指示的参考信号还可以包括：用于非码本non-coodebook传输的uplink resource/resource set(如non-codebook usage的SRS resource set)所关联的参考信号(如CSI-RS)。这里，用于非码本non-coodebook传输的uplink resource/resource set 所关联的参考信号是指与用于非码本non-coodebook传输的uplink resource/resource set承载的上行信号具有QCL关系或者空间相关关系的参考信号。
本申请中，该spatial relation信息可以称为第一指示信息。
2.基于网络设备的显示指示确定第一功率控制参数
具体的，网络设备可以向终端发送以下一项或多项指示信息：天线面板的开关指示信息、天线面板的标识信息(panel ID)或上行信号的传输方式的指示信息。相应的，终端可以接收网络设备发送的指示信息。其中，上行信号的传输方式可包括单panel传输上行信号和多panel传输上行信号。这些信息直接指示出了终端在M个uplink resource/resource set上传输上行信号应该采用的panel或panel个数。终端根据这些信息中的一项或多项便可以确定上行信号传输需要使用的第一功率控制参数。也即是说，终端可以基于网络设备的显式指示确定采用哪一套或哪些套功率控制参数。
天线面板的开关指示信息可指示开启哪些panel，或关闭哪些panel。若该开关指示信息指示关闭哪些panel，则开启的panel即关闭的panel之外的终端panel。第一功率控制参数即N套功率控制参数中开启的panel对应的功率控制参数。具体实现中，天线面板的开关指示信息可以是多个比特，其中一个比特对应一个panel，指示这个panel的开启或关闭。实际应用中，该开关指示信息的实现还可以有其他方式，本申请对此不作限制。
天线面板的标识信息(panel ID)表示的panel即终端在M个uplink resource/resource set上传输上行信号应该采用的panel。第一功率控制参数即N套功率控制参数中该标识信息表示的panel对应的功率控制参数。
通过上行信号的传输方式的指示信息确定第一功率控制参数的实现方式适用前述配置N套功率控制参数的方式2。第一功率控制参数为上行信号的传输方式对应的那一套功率控制参数。
本申请中，天线面板的开关指示信息、天线面板的标识信息(panel ID)或上行信号的传输方式的指示信息中的一项或多项指示信息可称为第二指示信息。
上面内容描述了终端基于网络设备的隐式指示或显示指示确定第一功率控制参数的方式，不限于此，第一功率控制参数可以通过协议预定义，或者根据终端先前上报的信息(如信道质量测量报告、信道质量优良的panel的信息等)确定，或者根据终端侧的测量结果确定。
下面详细介绍方案2，方案2主要讨论在多panel传输上行信号的场景下，如何为多个panel对应的上行信号分配发射功率。图8示出了方案2描述的信号传输方法的总体流程图，该方法可包括：
S201，网络设备可以向终端发送配置信息，该配置信息指示为H个上行信号配置的功率控制参数。H≥2，H是正整数。这H个上行信号分别通过终端的H个panel传输。这H个上行信号承载于第一时间单元内。关于第一时间单元的说明，请参考前述内容，这里不再赘述。
S202，终端可以基于H个上行信号各自对应的功率控制参数确定H个上行信号各自对 应的第一发射功率。
关于各个上行信号各自对应的第一发射功率的确定方式，后续内容中将详细说明，这里先不赘述。
S203，终端判断H个上行信号各自对应的第一发射功率的总和是否大于终端的最大发射功率，如果大于，则执行S204-S205，否则执行S206。
S204，如果H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率，则终端确定H个上行信号中至少一个上行信号各自对应的第二发射功率。该至少一个上行信号各自对应的第二发射功率的总和小于或等于终端的最大发射功率。
S205，在第一时间单元内，终端可以基于该至少一个上行信号各自对应的第二发射功率传输该至少一个上行信号。
相应的，网络设备在第一时间单元内接收该至少一个上行信号，该至少一个上行信号各自对应的第二发射功率的总和小于或等于所述终端的最大传输功率，该至少一个上行信号各自对应的第二发射功率是根据H个上行信号各自相关的参考信号的信道质量信息确定的。
这里，相关的参考信号可以包括以下一项或多项：H个上行信号的空间相关信息包括的或指示的参考信号、H个上行信号各自对应的功率控制参数中包括的用于估计路径损耗的参考信号。该相关的参考信号的信道质量信息是之前终端上报的。可选的，该相关的参考信号的信道质量信息可以是终端最近一次上报的。其中信道质量信息包括参考信号接收功率RSRP，CQI,RSRQ,SINR,SNR等。
例如，相关的参考信号可以为功控参数中包括的下行参考信号，终端在发送H个信号之前上报过H个上行信号各自相关的该下行参考信号的接收功率。而下行参考信号的发送功率基站是知道的，因此网络设备可以推算其下行路径损耗。相关的参考信号可以该空间相关信息中包括的参考信号。终端可以在之前做过信道测量，并上报给基站。
这样，网络设备能够根据终端先前上报的该相关的参考信号的质量，来判断哪个信号的传输路径更好，进而确定哪个信号是按照网络设备指示的功率发送的，哪个信号是使用剩余功率发送的。
S206，如果H个上行信号l各自对应的第一发射功率的总和小于或等于终端的最大发射功率，则在第一时间单元内，终端可以基于H个上行信号各自对应的第一发射功率传输H个上行信号。
可选的，配置信息可以具体指示为M个uplink resource/resource set配置的功率控制参数。为M个uplink resource/resource set配置的功率控制参数可包括为H个上行信号配置的功率控制参数。M个uplink resource/resource set可以被配置有多套功率控制参数(参考方案1)，也可以仅被配置1套功率控制参数。
可以看出，方案2考虑了在多panel传输上行信号的场景下，多个panel各自基于功率控制参数确定的发射功率(即第一发射功率)的总和可能会超过终端的最大传输功率的问题。对此，终端可以根据H个panel各自相关的路径损耗来为H个panel对应的上行信号分配发射功率，具体优先为路径损耗较小的panel对应的上行信号分配发射功率。一种可能的情况是，H个panel中有部分panel不会被分配到发射功率护着该部分panel上不会发射 信号。
下面详细说明方案2涉及的几个方面(一)至(二)。
(一)如何为各个panel对应的上行信号分配发射功率。
1.场景一：M个uplink resource/resource set配置有多套功率控制参数的场景(多套功率控制参数的配置可参考方案1)
(1)首先，说明如何确定H个上行信号各自对应的第一发射功率。
具体的，参考前述方案1可知，终端可以基于网络设备的隐式指示(即spatial relation信息)或显示指示(即panel的开关指示信息、panel ID等)确定终端传输H个上行信号时使用的功率控制参数，即前述方案1中提及的第一功率控制参数。然后，终端可以根据第一功率控制参数确定H个上行信号各自对应的第一发射功率。
例子1，以SRS为例进行说明，假设为每一个SRS resource set配置的多套功率控制参数如表10示例性所示：
天线面板 SRS功率控制参数
panel-0 参数0
panel-1 参数1
panel-2 参数2
panel-3 参数3
panel-0和panel-2 参数4
panel-1和panel-3 参数5
panel-0,panel-1,panel-2和panel-3 参数6
表10
又假设，某一个SRS resource set的spatial relation信息指示的参考信号包括：CSI-RS 0和CSI-RS 2。且假设终端采用panel-0接收CSI-RS 0，采用panel-2接收CSI-RS 2。那么，H个上行信号是panel-0传输的SRS和panel-2传输的SRS。根据表10可确定H个SRS对应的功率控制参数是参数5。
在一种可能的实现方式中，参数5可以是两套功率控制参数，配置给panel-0和panel-2传输SRS时使用，此时panel-0传输的SRS对应的第一发射功率P′ panel-0根据其中一套功率控制参数(p0 1，alpha 1，RS 1)确定，panel-2传输的SRS对应的第一发射功率P′ panel-2根据其中另一套功率控制参数(p0 2，alpha 2，RS 2)确定。RS 1、RS 2为路径损耗参考信号。此时，P′ panel-0＝p0 1+alpha 1*PL(RS 1)；P′ panel-2＝p0 2+alpha 2*PL(RS 2)。PL(RS 1)为根据RS 1计算的路径损耗，PL(RS 2)为根据RS 2计算的路径损耗。
在另一种可能的实现方式中，参数5也可以是一套功率控制参数，配置给panel-0和panel-2传输SRS时使用。此时panel-0传输的SRS对应的第一发射功率P′ panel-0和panel-2传输的SRS对应的第一发射功率P′ panel-2都根据这一套功率控制参数(p0，alpha，RS PL)确定。此时，P′ panel-0＝p0+alpha*PL(CSI-RS 0)；P′ panel-2＝p0+alpha*PL(CSI-RS 2)。PL(CSI-RS0)为根据CSI-RS 0计算的路径损耗，PL(CSI-RS 2)为根据CSI-RS 2计算的路径损耗。这一 套功率控制参数(p0，alpha，RS PL)中的路径损耗参考信号RS PL没有考虑多panel对应的多传输路径的信道状况，不适用计算panel-0传输的SRS和panel-2传输的SRS各自相关的路径损耗。因此终端可以基于panel-0传输的SRS和panel-2传输的SRS各自对应的源参考信号CSI-RS 0、CSI-RS 2重新测量得到panel-0传输的SRS和panel-2传输的SRS各自相关的路径损耗。
例子2，以SRS为例进行说明，假设为每一个SRS resource set配置的多套功率控制参数如表11示例性所示：
Figure PCTCN2019108759-appb-000010
表11
其中：
参数0是一套功率控制参数，配置给单panel传输SRS时使用；
参数1是一套功率控制参数，配置给多panel传输SRS时使用，此时各个panel的发射功率控制都遵循这一套功率控制参数。
又假设，某一个SRS resource set的spatial relation信息指示的参考信号包括：CSI-RS 1和CSI-RS 3。且假设终端采用panel-1接收CSI-RS 1，采用panel-3接收CSI-RS 3。那么，H个上行信号是panel-1传输的SRS和panel-3传输的SRS。根据表7可确定H个panel对应的功率控制参数是参数1。
此时，panel-1传输的SRS对应的第一发射功率P′ panel-1和panel-3传输的SRS对应的第一发射功率P′ panel-3都根据参数1(p0，alpha，RS PL)确定。此时，P′ panel-1＝p0+alpha*PL(CSI-RS 1)；P′ panel-3＝p0+alpha*PL(CSI-RS 3)。PL(CSI-RS 1)为根据CSI-RS 1计算的路径损耗，PL(CSI-RS 3)为根据CSI-RS 3计算的路径损耗。这一套功率控制参数(p0，alpha，RS PL)中的路径损耗参考信号RS PL没有考虑多panel对应的多传输路径的信道状况，不适用计算panel-1传输的SRS和panel-3传输的SRS各自相关的路径损耗。因此终端可以基于panel-1传输的SRS和panel-3传输的SRS各自对应的源参考信号CSI-RS 1、CSI-RS 3重新测量得到panel-1传输的SRS和panel-3传输的SRS各自相关的路径损耗。
(2)其次，说明如何为H个上行信号确定第二发射功率。
在H个上行信号各自基于功率控制参数确定的第一发射功率的总和超过终端的最大传输功率的情况下，终端可以根据各上行信号相关的路径损耗，优先为路径损耗较小的上行信号对应的上行信号分配发射功率。也即是说，路径损耗较小的上行信号优先于路径损耗 较大的上行信号被分配功率。
以2个上行信号(panel-1传输的上行信号和panel-2传输的上行信号)为例，假设P′ panel-1+P′ panel-2＞Pmax，且PL(panel-1)＜PL(panel-3)。其中，P′ panel-1表示panel-1传输的上行信号对应的第一发射功率，P′ panel-3表示panel-2传输的上行信号对应的第一发射功率，Pmax表示终端的最大传输功率，PL(panel-1)表示panel-1传输的上行信号相关的路径损耗，PL(panel-3)表示panel-3传输的上行信号的路径损耗。那么：
如果P′ panel-1＜Pmax，则P panel-1＝P′ panel-1，P panel-2＝Pmax-P panel-1；
如果P′ panel-1＞Pmax，则P panel-1＝Pmax，P panel-2＝0。
其中，P panel-1表示panel-1传输的上行信号对应的第二发射功率，P panel-2表示panel-2传输的上行信号对应的第二发射功率。
从该示例可以看出，优先为路径损耗较小的上行信号分配发射功率。一种可能的情况是，H个panel中有部分panel传输的上行信号不会被分配到发射功率，例如panel-2传输的上行信号对应第二发射功率可能为0。
上述示例仅仅用于解释本申请，实际可以为更多panel(H＞2)传输的上行信号分配发射功率。
概括地说，根据上行信号相关的路径损耗从小到大的顺序，终端可以执行至少一轮功率分配。其中：
在第i(i是正整数，i小于等于H)轮功率分配中，从未被确定第二发射功率的上行信号中确定当前路径损耗最小的上行信号，可表示为S i-minPL。分配给S i-minPL的实际发射功率可以为min{P′ i，Pmax}。这里，S i-minPL的实际发射功率即S i-minPL对应的第二发射功率，Pmax表示终端的最大传输功率，min表示取最小值。P i-r表示终端的最大发射功率中除去前面i-1轮中已分配的发射功率后剩余的发射功率。P′ i表示S i-minPL对应的第一发射功率。
具体的，在第i轮功率分配可以通过下述算法表示：
P i＝min{P r，P′ i}，
其中，当i＝1时，Pr＝Pmax，当i＞1时，Pr＝Pmax-P i-1-…-P 1；
其中，P i表示S i-minPL对应的第二发射功率，P′ i表示S i-minPL对应的第一发射功率；Pmax表示终端的最大传输功率，Pr是所述终端的最大发射功率中除去前面i-1轮功率分配中已分配的发射功率后剩余的发射功率，0≤Pr≤Pmax；S i-minPL表示第i轮功率分配中路径损耗最小的未被确定第二发射功率的天线面板。
在方案2中，各个panel传输的上行信号各自相关的路径损耗可以根据各个panel传输的上行信号对应的用于估计路径损耗的参考信号计算得到。
在一种实现方式中，一个panel传输的上行信号对应的用于估计路径损耗的参考信号可以是该上行信号的spatial relation信息指示的参考信号。
例如，某一个SRS resource set的spatial relation信息指示的参考信号包括：CSI-RS 0和CSI-RS 2。且假设终端采用panel-0接收CSI-RS 0，采用panel-2接收CSI-RS 2。那么，CSI-RS 0为panel-0传输的SRS相关的路径损耗参考信号，CSI-RS 2为panel-2传输的SRS 相关的路径损耗参考信号。示例仅仅用于解释本申请，不应构成限定。
在另一种实现方式中，一个panel对应的用于估计路径损耗的参考信号可以是该panel传输的上行信号对应的功率控制参数中包括的路径损耗参考信号。
例如，假设panel-2传输的上行信号对应的第一发射功率P′ panel-2根据功率控制参数(p0 2，alpha 2，RS 2)确定。那么，panel-2传输的上行信号相关的路径损耗参考信号可以为RS 2。示例仅仅用于解释本申请，不应构成限定。
2.场景二：M个uplink resource/resource set仅配置有1套功率控制参数的场景
在为M个uplink resource/resource set仅配置一套功率控制参数的场景下，终端可以根据这一套功率控制参数确定H个panel各自传输的上行信号对应的第一发射功率，但需要考虑到各个panel各自对应路径损耗不同。
(1)首先，说明如何确定H个上行信号各自对应的第一发射功率。
具体的，H个天线面板各自传输的上行信号对应的第一发射功率可以基于以下参数确定：这一套功率控制参数中包括上行信号的目标接收功率p0、路径损耗补偿因子alpha，以及基于H个panel各自传输的上行信号的spatial relation信息指示的参考信号测量得到的路径损耗。
举例说明，假设为M个uplink resource/resource set仅配置一套功率控制参数为(p0，alpha，RS PL)。且假设某一个SRS resource set的spatial relation信息指示的参考信号包括：CSI-RS 0和CSI-RS 2，且终端采用panel-0接收CSI-RS 0，采用panel-2接收CSI-RS 2。那么：
panel-0传输的上行信号对应的第一发射功率可以根据以下参数确定：p0，alpha，以及基于CSI-RS 0测量得到的路径损耗。即＝p0+alpha*PL(CSI-RS 0)。
panel-2传输的上行信号对应的第一发射功率可以根据以下参数确定：p0，alpha，以及基于CSI-RS 2测量得到的路径损耗。即＝p0+alpha*PL(CSI-RS 2)。
由于仅配置的一套功率控制参数(p0，alpha，RS PL)中的路径损耗参考信号RS PL没有考虑多panel各自相关的路径损耗不同，不适用计算panel-0传输的上行信号和panel-2传输的上行信号相关的路径损耗。因此终端可以基于panel-0传输的上行信号和panel-2传输的上行信号各自对应的源参考信号CSI-RS 0、CSI-RS 2重新测量得到panel-0传输的上行信号和panel-2传输的上行信号各自相关的路径损耗，并基于重新计算的路径损耗确定各个panel各自传输的上行信号对应的第一发射功率。
(2)其次，说明如何为H个上行信号确定第二发射功率。
具体的，与场景一中确定H个上行信号中至少一个上行信号对应的第二发射功率的方式相同，具体可参考前述场景一中的相关内容，这里不再赘述。
(二)如何确定在M个uplink resource/resource set上传输上行信号的panel个数
可选的，终端可以根据spatial relation信息确定在M个uplink resource/resource set上传输上行信号时采用的panel的个数，如果panel个数≥2，则确定上行信号的传输方式属于多panel传输上行信号。panel个数等于上行信号的个数。可以理解的，前述H个上行信号为 H个panel采用多panel传输模式传输的。
可选的，panel的个数可以由以下一项或多项确定：M个uplink resource/resource set的spatial relation信息的个数、spatial relation信息指示的参考信号的个数、spatial relation信息指示的参考信号(如用于波束训练的SRS)所属的资源或资源集合或资源分组。下面分别进行说明。
1.根据spatial relation信息的个数确定panel个数。
可选的，如果一个resource set/resource对应一个panel，一个resource set/resource对应一个spatial relation信息，则终端可以根据spatial relation信息的个数确定出panel个数。
2.根据spatial relation信息指示的参考信号的个数确定panel个数。
可选的，如果一个参考信号对应一个panel，则终端可以根据spatial relation信息指示的参考信号的个数确定出panel的个数。例如，在non-codebook传输场景下，1个CSI-RS对应1个panel，因此终端根据spatial relation信息指示的参考信号CSI-RS的个数能够确定出panel个数。
3.根据spatial relation信息指示的参考信号(即源参考信号)所属的资源或资源集合或资源分组的数量确定panel个数。
这里，源参考信号所属的资源或资源集合或资源分组是指承载源参考信号的资源或资源集合或资源分组。
可选的，spatial relation信息指示的参考信号(即源参考信号)可以为CSI-RS。在下行传输CSI-RS时，在接收CSI-RS的resource/resource set/resource group上，终端通过波束训练可以确定接收CSI-RS所采用的panel，并记录CSI-RS对应的resource/resource set/resource group与CSI-RS所采用的panel之间的映射。这样，在获知源参考信号CSI-RS所属的resource/resource set/resource group有哪些之后，终端便可以确定接收CSI-RS的一个或多个panel。因为源参考信号CSI-RS的空间特性参数和上行信号空间特性参数相同，传输上行信号采用的panel和接收源参考信号CSI-RS采用的panel相同。这样便可以确定传输上行信号时采用的panel的个数。
可选的，spatial relation信息指示的参考信号(即源参考信号)可以为SRS。在上行传输SRS时，在发射SRS的resource/resource set/resource group上，终端通过波束训练可以确定发射源参考信号SRS采用的panel，并记录源参考信号SRS对应的resource/resource set/resource group与源参考信号SRS所采用的panel之间的映射。这样，在获知源参考信号SRS所属的resource/resource set/resource group有哪些之后，终端便可以确定发射源参考信号SRS的一个或多个panel。因为源参考信号SRS的空间特性参数和上行信号的空间特性参数相同，传输上行信号采用的panel和传输源参考信号SRS采用的panel相同。这样便可以确定传输上行信号时采用的panel的个数。
不限于基于spatial relation信息确定panel个数。可选的，终端也可以基于网络设备发送的其他指示信息，如panel的开关指示信息，panel ID，上行信号的传输方式的指示信息等，确定panel个数。
例如，panel的开关指示信息指示开启panel-0和panel-2，则终端便可以确定panel个数为2。又例如，panel ID指示panel-0至panel-2，则终端便可以确定panel个数为4。再例 如，上行信号的传输方式的指示信息指示4panel传输上行信号，则终端可以确定panel个数为4。示例仅仅用于解释本申请，不应构成限定。
参考图9，图9示出了本申请的一些实施例提供的终端300。如图9所示，终端300可包括：输入输出模块(包括音频输入输出模块318、按键输入模块316以及显示器320等)、用户接口302、一个或多个终端处理器304、发射器306、接收器308、耦合器310、天线314以及存储器312。这些部件可通过总线或者其他方式连接，图9以通过总线连接为例。其中：
通信接口301可用于终端300与其他通信设备，例如基站，进行通信。具体的，所述基站可以是图9所示的网络设备400。通信接口301是指终端处理器304与收发系统(由发射器306和接收器308构成)之间的接口，例如LTE中的X1接口。具体实现中，通信接口301可包括：全球移动通信系统(Global System for Mobile Communication，GSM)(2G)通信接口、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)(3G)通信接口，以及长期演进(Long Term Evolution，LTE)(4G)通信接口等等中的一种或几种，也可以是4.5G、5G或者未来新空口的通信接口。不限于无线通信接口，终端300还可以配置有有线的通信接口301，例如局域接入网(Local Access Network，LAN)接口。
天线314可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器310用于将天线314接收到的移动通信信号分成多路，分配给多个的接收器308。
发射器306可用于对终端处理器304输出的信号进行发射处理，例如将该信号调制在授权频段的信号，或者调制在非授权频段的信号。
接收器308可用于对天线314接收的移动通信信号进行接收处理。例如，接收器308可以解调已被调制在非授权频段上的接收信号，也可以解调调制在授权频段上的接收信号。
在本申请的一些实施例中，发射器306和接收器308可看作一个无线调制解调器。在终端300中，发射器306和接收器308的数量均可以是一个或者多个。
除了图9所示的发射器306和接收器308，终端300还可包括其他通信部件，例如GPS模块、蓝牙(Bluetooth)模块、无线高保真(Wireless Fidelity，Wi-Fi)模块等。不限于上述表述的无线通信信号，终端300还可以支持其他无线通信信号，例如卫星信号、短波信号等等。不限于无线通信，终端300还可以配置有有线网络接口(如LAN接口)来支持有线通信。
所述输入输出模块可用于实现终端300和用户/外部环境之间的交互，可主要包括音频输入输出模块318、按键输入模块316以及显示器320等。具体实现中，所述输入输出模块还可包括：摄像头、触摸屏以及传感器等等。其中，所述输入输出模块均通过用户接口302与终端处理器304进行通信。
存储器312与终端处理器304耦合，用于存储各种软件程序和/或多组指令。具体实现中，存储器312可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器312可以存储操作系统(下述简称系统)，例如ANDROID，IOS，WINDOWS，或者LINUX等嵌入式操作系 统。存储器312还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个终端设备，一个或多个网络设备进行通信。存储器312还可以存储用户接口程序，该用户接口程序可以通过图形化的操作界面将应用程序的内容形象逼真的显示出来，并通过菜单、对话框以及按键等输入控件接收用户对应用程序的控制操作。
在本申请的一些实施例中，存储器312可用于存储本申请的一个或多个实施例提供的信号传输方法在终端300侧的实现程序。关于本申请的一个或多个实施例提供的信号传输方法的实现，请参考后续实施例。
终端处理器304可用于读取和执行计算机可读指令。具体的，终端处理器304可用于调用存储于存储器312中的程序，例如本申请的一个或多个实施例提供的信号传输方法在终端300侧的实现程序，并执行该程序包含的指令。
终端处理器304可以为调制解调器(Modem)处理器，是实现3GPP、ETSI等无线通信标准中主要功能的模块。Modem可以作为单独的芯片，也可以与其他芯片或电路在一起形成系统级芯片或集成电路。这些芯片或集成电路可应用于所有实现无线通信功能的设备，包括：手机、电脑、笔记本、平板、路由器、可穿戴设备、汽车、家电设备等。需要说明的是，在不同的实施方式中，终端处理器304处理器可以作为单独的芯片，与片外存储器耦合，即芯片内不包含存储器；或者终端处理器304处理器与片内存储器耦合并集成于芯片中，即芯片内包含存储器。
可以理解的，终端300可以是图1示出的无线通信系统100中的终端103，可实施为移动设备，移动台(mobile station)，移动单元(mobile unit)，无线单元，远程单元，用户代理，移动客户端等等。
需要说明的，图9所示的终端300仅仅是本申请的一种实现方式，实际应用中，终端300还可以包括更多或更少的部件，这里不作限制。
参考图10，图10示出了本申请的一些实施例提供的网络设备400。如图10所示，网络设备400可包括：通信接口403、一个或多个网络设备处理器401、发射器407、接收器409、耦合器411、天线413和存储器405。这些部件可通过总线或者其他方式连接，图10以通过总线连接为例。其中：
通信接口403可用于网络设备400与其他通信设备，例如终端设备或其他基站，进行通信。具体的，所述终端设备可以是图9所示的终端300。通信接口301是指网络设备处理器401与收发系统(由发射器407和接收器409构成)之间的接口，例如LTE中的S1接口。具体实现中，通信接口403可包括：全球移动通信系统(GSM)(2G)通信接口、宽带码分多址(WCDMA)(3G)通信接口，以及长期演进(LTE)(4G)通信接口等等中的一种或几种，也可以是4.5G、5G或者未来新空口的通信接口。不限于无线通信接口，网络设备400还可以配置有有线的通信接口403来支持有线通信，例如一个网络设备400与其他网络设备400之间的回程链接可以是有线通信连接。
天线413可用于将传输线中的电磁能转换成自由空间中的电磁波，或者将自由空间中的电磁波转换成传输线中的电磁能。耦合器411可用于将移动通信号分成多路，分配给多个的接收器409。
发射器407可用于对网络设备处理器401输出的信号进行发射处理，例如将该信号调制在授权频段的信号，或者调制在非授权频段的信号。
接收器409可用于对天线413接收的移动通信信号进行接收处理。例如，接收器409可以解调已被调制在非授权频段上的接收信号，也可以解调调制在授权频段上的接收信号。
在本申请的一些实施例中，发射器407和接收器409可看作一个无线调制解调器。在网络设备400中，发射器407和接收器409的数量均可以是一个或者多个。
存储器405与网络设备处理器401耦合，用于存储各种软件程序和/或多组指令。具体实现中，存储器405可包括高速随机存取的存储器，并且也可包括非易失性存储器，例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器405可以存储操作系统(下述简称系统)，例如uCOS、VxWorks、RTLinux等嵌入式操作系统。存储器405还可以存储网络通信程序，该网络通信程序可用于与一个或多个附加设备，一个或多个终端设备，一个或多个网络设备进行通信。
网络设备处理器401可用于进行无线信道管理、实施呼叫和通信链路的建立和拆除，并为本控制区内用户设备的过区切换进行控制等。具体实现中，网络设备处理器401可包括：管理/通信模块(Administration Module/Communication Module，AM/CM)(用于话路交换和信息交换的中心)、基本模块(Basic Module，BM)(用于完成呼叫处理、信令处理、无线资源管理、无线链路的管理和电路维护功能)、码变换及子复用单元(Transcoder and SubMultiplexer，TCSM)(用于完成复用解复用及码变换功能)等等。
本申请中，网络设备处理器401可用于读取和执行计算机可读指令。具体的，网络设备处理器401可用于调用存储于存储器405中的程序，例如本申请的一个或多个实施例提供的信号传输方法在网络设备400侧的实现程序，并执行该程序包含的指令。
网络设备处理器401可以为调制解调器(Modem)处理器，是实现3GPP、ETSI等无线通信标准中主要功能的模块。Modem可以作为单独的芯片，也可以与其他芯片或电路在一起形成系统级芯片或集成电路。这些芯片或集成电路可应用于所有实现无线通信功能的网络侧设备，例如，在LTE网络中，称为演进的节点B(evolved NodeB，eNB或eNodeB)，在第三代(the 3rd Generation，3G)网络中，称为节点B(Node B)等，在5G网络中，称为5G基站(NR NodeB，gNB)。需要说明的是，在不同的实施方式中，网络设备处理器401可以作为单独的芯片，与片外存储器耦合，即芯片内不包含存储器；或者网络设备处理器401处理器与片内存储器耦合并集成于芯片中，即芯片内包含存储器。
可以理解的，网络设备400可以是图1示出的无线通信系统100中的网络设备101，可实施为基站收发台，无线收发器，一个基本服务集(BSS)，一个扩展服务集(ESS)，NodeB，eNodeB等等。网络设备400可以实施为几种不同类型的基站，例如宏基站、微基站等。网络设备400可以应用不同的无线技术，例如小区无线接入技术，或者WLAN无线接入技术。
需要说明的，图10所示的网络设备400仅仅是本申请的一种实现方式，实际应用中，网络设备400还可以包括更多或更少的部件，这里不作限制。
参见图11，图11是本申请的一个实施例提供的无线通信系统10，以及无线通信系统 10中的网络设备600、终端500。网络设备600可以是前述实施例中的网络设备，终端500可以是前述实施例中的终端。
如图11所示，终端500可包括：处理单元501和通信单元503。网络设备600可包括：通信单元601和处理单元603。
下面说明上述方案1中终端500和网络设备600的具体实现。
在上述方案1中，终端500包括的各个功能可具体实现如下：
通信单元503可具体包括发送单元5031和接收单元5033。其中：
接收单元5033可用于接收配置信息，该配置信息可指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数。
发送单元5031可用于在这M个上行信号资源或上行信号资源集合上发射上行信号，在这M个上行信号资源或上行信号资源集合上发射上行信号的发射功率依据第一功率控制参数确定，第一功率控制参数选自这N套功率控制参数。
可选的，处理单元501可用于从N套功率控制参数中确定出第一功率控制参数，并依据第一功率参数确定在这M个上行信号资源或上行信号资源集合上发射上行信号的发射功率。
在上述方案1中，网络设备600包括的各个功能可具体实现如下：
通信单元601可具体包括：接收单元6011和发送单元6013。其中：
发送单元6013可用于向终端发送配置信息，该配置信息可指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数。
接收单元6011可用于在这M个上行信号资源或上行信号资源集合上接收终端发送的上行信号。
处理单元603可用于为M个上行信号资源或上行信号资源集合配置的N套功率控制参数。
本申请中，M个上行信号资源或上行信号资源集合(uplink resource/resource set)与N套功率控制参数的关系可体现如下：
可选的，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数。这里，M个uplink resource/resource set中的每一个uplink resource/resource set均关联这N套功率控制参数是指M个uplink resource/resource set中的每一个uplink resource/resource set对应的功率控制参数均可选自N套功率控制参数。换句话说，这N套功率控制参数为M个uplink resource/resource set中的每一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数。这里，至少一个uplink resource/resource set关联这N套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自N套功率控制参数。换句话说，这N套功率控制参数为至少一个uplink resource/resource set的候选(candidate)功率控制参数。
可选的，M个uplink resource/resource set中有至少一个uplink resource/resource set关联这N套功率控制参数中至少一套功率控制参数。这里，至少一个uplink resource/resource  set关联该至少一套功率控制参数是指至少一个uplink resource/resource set各自对应的功率控制参数都可选自该至少一套功率控制参数。换句话说，该至少一套功率控制参数为该至少一个uplink resource/resource set的候选(candidate)功率控制参数。
在一些可选实施例中，功率控制参数可包括以下一项或多项：上行信号的目标接收功率、路径损耗补偿因子、路径损耗参考信号。可选的，对于SRS、PUSCH来说，功率控制参数可包括上行信号的目标接收功率、路径损耗补偿因子、路径损耗参考信号这三项。可选的，对于PUCCH来说，功率控制参数可包括上行信号的目标接收功率、路径损耗参考信号这两项。
在一些可选实施例中，配置信息可以指示panel与功率控制参数之间的映射。在一些可选实施例中，配置信息也可以仅指示N套功率控制参数，N套功率控制参数与panel之间的映射可以遵循预设映射规则，该预设映射规则为终端500所知。
在一些可选实施例中，网络设备中的处理单元603可具体用于，对于不同的上行信号，为M个uplink resource/resource set配置N套功率控制参数具体可为：
1.为一个SRS resource set配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个SRS resource set不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个SRS resource set绑定在一起，为这多个SRS resource set配置N套功率控制参数，此时M＞1。
2.为一个PUSCH resource配置N套功率控制参数，此时M＝1。与现有技术不同的是，一个PUSCH resource不再只对应一套功率控制参数，而是对应多套功率控制参数。不限于此，也可以将多个PUSCH resource绑定在一起，为这多个PUSCH resource配置N套功率控制参数，此时M＞1。
3.为一个PUCCH resource set list或resource list配置N套功率控制参数。其中，一个PUCCH resource set list包括M(M≥1，M是正整数)个PUCCH resource set，一个PUCCH resource list包括M(M≥1，M是正整数)个PUCCH resource。与现有技术不同的是，一个PUCCH resource set list或resource list不再只对应一套功率控制参数，而是对应多套功率控制参数。
在一些可选实施例中，N套功率控制参数可包括：在M个上行信号资源或上行信号资源集合上采用单天线面板发射上行信号的功率控制参数，和/或，在M个上行信号资源或上行信号资源集合上采用多个天线面板发射上行信号的功率控制参数。
在一些可选实施例中，网络设备600中的处理单元603配置N套功率控制参数的方式可以包括以下方式：
方式1.针对每个panel分别配置功率控制参数(per panel配置方式)
具体的，为M个uplink resource/resource set配置(K+Q)套功率控制参数，即N＝K+Q，其中K套功率控制参数分别配置给K个panel单独传输上行信号时使用，Q套功率控制参数配置给多panel传输上行信号时使用。Q≥1，Q是正整数。K个panel是指终端的多个panel，K≤L，L表示终端的panel数量。
方式2.依据传输方式配置功率控制参数
具体的，可以根据传输方式为M个uplink resource/resource set配置N套功率控制参数， 一种传输方式可以对应一套或多套功率控制参数。
可选的，可以为M个uplink resource/resource set共配置2套功率控制参数，即N＝2。在这2套功率控制参数中，一套功率控制参数配置给单panel传输上行信号时使用，另一套功率控制参数配置给多panel传输上行信号时使用。
方式3.类似方式1，但不为多panel传输上行信号配置功率控制参数
具体的，为M个uplink resource/resource set配置K套功率控制参数，即N＝K，这K套功率控制参数分别配置给K个panel单独传输上行信号时使用。至少2个panel传输上行信号时采用的功率控制参数包括该至少2个panel分别单独传输上行信号时采用的功率控制参数。
在一些可选实施例中，终端500中的处理单元501确定第一功率控制参数的方式可以包括：
方式1.基于网络设备的隐式指示确定第一功率控制参数
具体的，网络设备可以向终端发送M个uplink resource/resource set的spatial relation信息。相应的，终端可以接收网络设备发送的该spatial relation信息。该spatial relation信息指示的参考信号和M个uplink resource/resource set承载的上行信号具有相同空间特性参数。该spatial relation信息指示的参考信号即前面空间相关(Spatial Relation)信息的介绍内容中提及的源参考信号，可以包括SRS、CSI-RS等。
可选的，终端500中的处理单元可具体用于基于spatial relation信息确定出第一功率控制参数。可选的，终端500中的处理单元可具体用于根据spatial relation信息指示的参考信号所采用的panel、spatial relation信息指示的参考信号所属的资源或资源集合或资源分组、spatial relation信息指示的参考信号的个数中的一项或多项确定第一功率控制参数。
方式2.基于网络设备的显示指示确定第一功率控制参数
具体的，网络设备可以向终端发送以下一项或多项指示信息：天线面板的开关指示信息、天线面板的标识信息(panel ID)或上行信号的传输方式的指示信息。相应的，终端可以接收网络设备发送的指示信息。其中，上行信号的传输方式可包括单panel传输上行信号和多panel传输上行信号。这些信息直接指示出了终端在M个uplink resource/resource set上传输上行信号应该采用的panel或panel个数。终端根据这些信息中的一项或多项便可以确定上行信号传输需要使用的第一功率控制参数。也即是说，终端可以基于网络设备的显式指示确定采用哪一套或哪些套功率控制参数。
可以理解的，终端500和网络设备600各自包括的各个功能单元的具体实现可参考前述上述方案1，这里不再赘述。
下面说明上述方案2中终端500和网络设备600的具体实现。
在前述方案2中，终端500包括的各个功能可具体实现如下：
处理单元501可用于如果在M个上行信号资源或上行信号资源集合上采用终端的H个天线面板传输上行信号，且基于这H个天线面板各自对应的功率控制参数确定出的这H个天线面板各自对应的第一发射功率的总和大于终端的最大发射功率，则确定这H个天线面板中至少一个天线面板各自对应的第二发射功率。
通信单元503可用于在M个上行信号资源或上行信号资源集合上，基于至少一个天线面板各自对应的第二发射功率采用所述至少一个天线面板传输上行信号。这至少一个天线面板各自对应的第二发射功率的总和小于或等于终端的最大传输功率。H≥2，H是正整数。
在前述方案2中，网络设备600包括的各个功能可具体实现如下：
通信单元601可用于向终端500发送配置信息，该配置信息可指示终端500的H个天线面板各自对应的功率控制参数。
通信单元601还可用于在这M个上行信号资源或上行信号资源集合上接收终端500发送的上行信号。
在前述方案2中，H个panel中有部分panel不会被分配到发射功率或者该部分panel上不会发射信号。即该至少一个天线面板的数量小于H。
在一些可选实施例中，M个uplink resource/resource set可配置有多套功率控制参数，即前述方案1中配置的N套功率控制参数。此时，H个天线面板各自对应的功率控制参数为N套功率控制参数。
在M个uplink resource/resource set配置有多套功率控制参数的场景下，处理单元501可以通过下述方法为各个panel对应的上行信号分配发射功率：
(1)首先，确定H个panel各自对应的第一发射功率。
具体的，参考前述方案1可知，处理单元501可用于基于网络设备600的隐式指示(即spatial relation信息)或显示指示(即panel的开关指示信息、panel ID等)确定终端500采用H个panel传输上行信号时使用的功率控制参数，即前述方案1中提及的第一功率控制参数。处理单元501可用于根据第一功率控制参数确定H个panel各自对应的第一发射功率。
(2)其次，确定H个panel中的至少一个panel对应的第二发射功率。
处理单元501可用于根据各panel相关的路径损耗，优先为路径损耗较小的panel对应的上行信号分配发射功率。也即是说，路径损耗较小的panel优先于路径损耗较大的panel被分配功率。
具体的，处理单元501可用于根据panel相关的路径损耗从小到大的顺序，执行至少一轮功率分配。其中：
在第i(i是正整数，i小于等于H)轮功率分配中，从未被确定第二发射功率的panel中确定当前路径损耗最小的panel，可表示为panel i-minPL。如果当前剩余的待分配功率P i-r大于或等于panel i-minPL对应的第一发射功率P′ i，则分配给panel i-minPL的实际发射功率可以为min{P′ i，Pmax}；否则分配给panel i-minPL的实际发射功率可以为min{P′ i，P i-r}。这里，panel i-minPL的实际发射功率即panel i-minPL对应的第二发射功率，Pmax表示终端的最大传输功率，min表示取最小值。P i-r表示终端的最大发射功率中除去前面i-1轮中已分配的发射功率后剩余的发射功率。
具体的，在第i轮功率分配可以通过下述算法表示：
P i＝min{P r，P′ i}，
其中，当i＝1时，Pr＝Pmax，当i＞1时，Pr＝Pmax-P i-1-…-P 1；
其中，P i表示panel i-minPL对应的第二发射功率，P′ i表示panel i-minPL对应的第一发射功率；Pmax表示终端的最大传输功率，Pr是所述终端的最大发射功率中除去前面i-1轮功率分配中已分配的发射功率后剩余的发射功率，0≤Pr≤Pmax；panel i-minPL表示第i轮功率分配中路径损耗最小的未被确定第二发射功率的天线面板。
在一些可选实施例中，M个uplink resource/resource set可仅配置1套功率控制参数。此时，H个天线面板各自对应的功率控制参数均为同一套功率控制参数。
在M个uplink resource/resource set仅配置1套功率控制参数的场景下，处理单元501可用于根据这仅一套功率控制参数确定H个panel各自对应的第一发射功率，但需要考虑到各个panel各自对应路径损耗不同。具体的，H个天线面板各自对应的第一发射功率可以基于以下参数确定：这一套功率控制参数中包括上行信号的目标接收功率p0、路径损耗补偿因子alpha，以及基于H个panel在spatial relation信息指示的参考信号中各自对应的参考信号测量得到的路径损耗。
在M个uplink resource/resource set仅配置1套功率控制参数的场景下，处理单元501可用于根据各panel相关的路径损耗，优先为路径损耗较小的panel对应的上行信号分配发射功率。具体实现可参考前述M个uplink resource/resource set配置有N套功率控制参数的场景下的功率分配方式，这里不再赘述。
可以理解的，终端500和网络设备600各自包括的各个功能单元的具体实现可参考前述上述方案2，这里不再赘述。
另外，本发明实施例还提供了一种无线通信系统，所述无线通信系统可以是图1所示的无线通信系统100，也可以是图11所示的无线通信系统10，可包括：网络设备和终端。其中，该终端可以是前述实施例中的终端，该网络设备可以是前述实施例中的网络设备。具体的，该终端可以是图9所示的终端300，该网络设备可以是图10所示的网络设备400。该终端也可以是图11实施例中的终端500，该网络设备也可以是图11实施例中的网络设备600。关于所述网络和所述终端的具体实现可参考前述实施例，这里不再赘述。
以图9所示终端300为例，终端处理器304用于调用存储于所述存储器312中的指令来控制发射器306发送信号以及控制接收器308接收信号。发射器306用于支持终端执行对数据和/或信令进行发射的过程。接收器308用于支持终端执行对数据和/或信令进行接收的过程。存储器312用于存储终端的程序代码和数据。
本申请中，接收器308可用于接收网络设备发送的配置信息。该配置信息可指示为M个上行信号资源或上行信号资源集合(uplink resource/resource set)配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数。关于终端中各部件的具体实现，可参考图前述方法实施例，这里不再赘述。终端300可具有L个天线面板，这N套功率控制参数是基于终端300的K个天线面板配置的；M≥1，M是正整数，N＞1，N是正整数，2≤K≤L，K、L都是正整数。
本申请中，发射器306可用于发射上行信号。上行信号的发射功率依据第一功率控制参数确定，第一功率控制参数选自这N套功率控制参数。
关于终端中各部件的具体实现，可参考图前述方法实施例，这里不再赘述。
以图10所示网络设备为例，网络设备处理器401用于控制发射器407发送信号以及控制接收器409接收信号。发射器407用于支持网络设备执行对数据和/或信令进行发射的过程。接收器409用于支持网络设备执行对数据和/或信令进行接收的过程。存储器405用于存储网络设备的程序代码和数据。
本申请中，发射器407可主要用于终端发送配置信息，该配置信息可指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数。
本申请中，接收器409可用于在这M个上行信号资源或上行信号资源集合上接收终端发送的上行信号。
关于网络设备中各部件的具体实现，可参考图前述方法实施例，这里不再赘述。
参见图12，图12示出了本申请提供的一种装置的结构示意图。如图12所示，装置50可包括：处理器501，以及耦合于处理器501的一个或多个接口502。其中：
处理器501可用于读取和执行计算机可读指令。具体实现中，处理器501可主要包括控制器、运算器和寄存器。其中，控制器主要负责指令译码，并为指令对应的操作发出控制信号。运算器主要负责执行定点或浮点算数运算操作、移位操作以及逻辑操作等，也可以执行地址运算和转换。寄存器主要负责保存指令执行过程中临时存放的寄存器操作数和中间操作结果等。具体实现中，处理器501的硬件架构可以是专用集成电路(Application Specific Integrated Circuits,ASIC)架构、MIPS架构、ARM架构或者NP架构等等。处理器501可以是单核的，也可以是多核的。
接口502可用于输入待处理的数据至处理器501，并且可以向外输出处理器501的处理结果。具体实现中，接口502可以是通用输入输出(General Purpose Input Output，GPIO)接口，可以和多个外围设备(如射频模块等等)连接。接口502还可以包括多个独立的接口，例如以太网接口、移动通信接口(如X1接口)等，分别负责不同外围设备和处理器501之间的通信。
本申请中，处理器501可用于从存储器中调用本申请的一个或多个实施例提供的信号传输方法在网络设备侧或终端侧的实现程序，并执行该程序包含的指令。接口502可用于输出处理器501的执行结果。本申请中，接口503可具体用于输出处理器501的处理结果。关于本申请的一个或多个实施例提供的信号传输方法可参考前述各个实施例，这里不再赘述。
需要说明的，处理器501、接口502各自对应的功能既可以通过硬件设计实现，也可以通过软件设计来实现，还可以通过软硬件结合的方式来实现，这里不作限制。
结合本发明实施例公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其他形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于 ASIC中。另外，该ASIC可以位于收发机或中继设备中。当然，处理器和存储介质也可以作为分立组件存在于无线接入网设备或终端设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上的具体实施方式，对本发明实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上仅为本发明实施例的具体实施方式而已，并不用于限定本发明实施例的保护范围，凡在本发明实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明实施例的保护范围之内。

Claims (30)

  1. 一种信号传输方法，其特征在于，包括：
    终端接收配置信息，所述配置信息指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数；
    所述终端在所述M个上行信号资源或上行信号资源集合上发射上行信号，在所述M个上行信号资源或上行信号资源集合上发射上行信号的发射功率依据第一功率控制参数确定；所述第一功率控制参数选自所述N套功率控制参数。
  2. 如权利要求1所述的方法，其特征在于，所述N套功率控制参数是基于终端的K个天线面板确定的，所述终端具有L个天线面板；2＜K≤L，K、L都是正整数；所述N套功率控制参数包括：在所述M个上行信号资源或上行信号资源集合上采用单天线面板发射上行信号的功率控制参数，和/或，在所述M个上行信号资源或上行信号资源集合上采用多个天线面板发射上行信号的功率控制参数。
  3. 如权利要求2所述的方法，其特征在于，所述N套功率控制参数包括：(K+Q)套功率控制参数，其中K套功率控制参数分别配置给K个天线面板单独传输上行信号时采用；Q套功率控制参数配置给多天线面板传输上行信号时采用，Q≥1，Q是正整数。
  4. 如权利要求2或3所述的方法，其特征在于，所述N套功率控制参数包括K套功率控制参数，其中，K套功率控制参数分别对应K个天线面板；所述终端设备在各个天线面板上根据所述各个天线面板各自对应的功率控制参数传输上行信号。
  5. 如权利要求1-4中任一项所述的方法，其特征在于，所述N套功率控制参数是根据上行信号的传输方式确定，一种传输方式对应一套或多套功率控制参数；所述传输方式包括以下一项或多项：单天线面板传输、多天线面板传输、单站点传输、多点协作传输。
  6. 如权利要求1-5中任一项所述的方法，其特征在于，还包括：所述终端接收所述网络设备发送的第一指示信息；
    所述第一功率控制参数依据所述第一指示信息确定，所述第一指示信息指示所述M个上行信号资源或上行信号资源集合承载的上行信号的空间相关信息。
  7. 如权利要求6所述的方法，其特征在于，所述第一功率控制参数具体依据以下一项或多项确定：所述第一指示信息指示的参考信号所采用的天线面板、所述第一指示信息指示的参考信号所属的资源或资源集合、所述第一指示信息指示的参考信号所属的资源分组、所述第一指示信息指示的参考信号的个数。
  8. 如权利要求6或7所述的方法，其特征在于，所述第一指示信息指示的参考信号包 括：描述空间相关信息的高层参数指示的参考信号，和/或用于非码本non-coodebook传输的上行资源所关联的参考信号。
  9. 如权利要求1-8中任一项所述的方法，其特征在于，还包括：所述终端接收所述网络设备发送的第二指示信息；
    所述第一功率控制参数依据所述第二指示信息确定，所述第二指示信息包括以下一项或多项：天线面板的开关指示信息、天线面板的标识信息或上行信号的传输方式的指示信息。
  10. 如权利要求1-9中任一项所述的方法，其特征在于，所述功率控制参数包括以下信息中的一项或多项：上行信号的目标接收功率、路径损耗补偿因子、用于估计路径损耗的参考信号信息。
  11. 一种信号传输方法，其特征在于，包括：
    如果基于H个上行信号各自对应的功率控制参数确定的所述H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率，则所述终端根据所述H个上行信号相关的路径损耗确定所述H个上行信号中至少一个上行信号各自对应的第二发射功率；所述至少一个上行信号各自对应的第二发射功率的总和小于或等于所述终端的最大传输功率；H≥2，H是正整数；所述H个上行信号承载于第一时间单元内；
    在所述第一时间单元内，所述终端基于所述至少一个上行信号各自对应的第二发射功率传输所述至少一个上行信号。
  12. 如权利要求11所述的方法，其特征在于，所述H个上行信号分别通过所述终端的H个天线面板传输。
  13. 如权利要求11或12所述的方法，其特征在于，所述终端根据所述H个上行信号相关的路径损耗确定所述H个上行信号中至少一个上行信号各自对应的第二发射功率，具体包括：
    所述终端根据所述H个上行信号各自相关的路径损耗优先为路径损耗较小的所述至少一个上行信号确定所述至少一个上行信号各自对应的第二发射功率。
  14. 如权利要求13所述的方法，其特征在于，所述终端根据所述H个上行信号各自相关的路径损耗优先为路径损耗较小的所述至少一个上行信号确定所述至少一个上行信号各自对应的第二发射功率，具体包括：
    所述终端根据所述H个上行信号各自相关的路径损耗从小到大的顺序，执行至少一轮功率分配；其中，
    在第i轮功率分配中，从未被确定第二发射功率的上行信号中确定路径损耗最小的上行信号S i-minPL，上行信号S i-minPL对应的第二发射功率为min{P′ i，P i-r}，其中，P′ i表示上 行信号panel i-minPL对应的第一发射功率，i是正整数，i≤H，Pmax表示所述终端的最大传输功率，min表示取最小值，P i-r表示所述终端的最大发射功率中除去前面i-1轮功率分配中已分配的发射功率后剩余的发射功率。
  15. 如权利要求14所述的方法，其特征在于，所述第i轮功率分配通过下述算法表示：
    P i＝min{P i-r，P′ i}，
    其中，当i＝1时，P i-r＝Pmax，当i＞1时，Pr＝Pmax-P i-1-…-P 1；
    其中，P i表示上行信号S i-minPL对应的第二发射功率，P′ i表示上行信号S i-minPL对应的第一发射功率；Pmax表示所述终端的最大传输功率，P i-r表示所述终端的最大发射功率中除去前面i-1轮功率分配中已分配的发射功率后剩余的发射功率；上行信号S i-minPL表示第i轮功率分配中路径损耗最小的未被确定第二发射功率的天线面板。
  16. 如权利要求11-15中任一项所述的方法，其特征在于，所述H个上行信号各自相关的路径损耗是根据所述H个上行信号各自对应的用于估计路径损耗的参考信号确定的。
  17. 如权利要求16所述的方法，其特征在于，所述H个上行信号各自对应的用于估计路径损耗的参考信号包括以下一项或多项：所述网络设备发送的第一指示信息指示的参考信号，所述H个上行信号各自对应的功率控制参数中包括的用于估计路径损耗的参考信号；
    其中，所述第一指示信息指示所述H个上行信号的空间相关信息。
  18. 一种信号传输方法，其特征在于，包括：
    网络设备向终端发送配置信息，所述配置信息指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；所述终端具有L个天线面板，所述N套功率控制参数是基于所述终端的K个天线面板配置的；M≥1，M是正整数，N＞1，N是正整数，2≤K≤L，K、L都是正整数；
    所述网络设备在所述M个上行信号资源或上行信号资源集合上接收所述终端发送的上行信号。
  19. 如权利要求18所述的方法，其特征在于，还包括：所述网络设备向所述终端发送第一指示信息，所述第一指示信息指示所述M个上行信号资源或上行信号资源集合承载的上行信号的空间相关信息。
  20. 如权利要求18或19所述的方法，其特征在于，还包括：所述网络设备向所述终端发送第二指示信息，所述第二指示信息包括以下一项或多项：天线面板的开关指示信息、天线面板的标识信息或上行信号的传输方式的指示信息。
  21. 一种信号传输方法，其特征在于，包括：
    网络设备向终端发送配置信息，所述配置信息指示为H个上行信号配置的功率控制参数；H≥2，H是正整数；所述H个上行信号承载于第一时间单元内；基于所述H个上行信号各自对应功率控制参数确定的所述H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率；
    所述网络设备在所述第一时间单元内接收所述H个上行信号中至少一个上行信号，所述至少一个上行信号各自对应的第二发射功率的总和小于或等于所述终端的最大传输功率，所述至少一个上行信号各自对应的第二发射功率是根据所述H个上行信号各自相关的参考信号的信道质量信息确定的。
  22. 一种终端，其特征在于，包括：发射器、接收器、存储器、耦合于所述存储器的处理器，其中：
    所述接收器用于接收配置信息，所述配置信息指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；M≥1，M是正整数，N＞1，N是正整数；
    所述发射器用于在所述M个上行信号资源或上行信号资源集合上发射上行信号，在所述M个上行信号资源或上行信号资源集合上发射上行信号的发射功率依据第一功率控制参数确定；所述第一功率控制参数选自所述N套功率控制参数。
  23. 如权利要求22所述的终端，其特征在于，所述接收器还用于接收所述网络设备发送的第一指示信息；
    所述第一功率控制参数依据所述第一指示信息确定，所述第一指示信息指示所述M个上行信号资源或上行信号资源集合承载的上行信号的空间相关信息。
  24. 如权利要求22或23所述的终端，其特征在于，所述接收器还用于接收所述网络设备发送的第二指示信息；
    所述第一功率控制参数依据所述第二指示信息确定，所述第二指示信息包括以下一项或多项：天线面板的开关指示信息、天线面板的标识信息或上行信号的传输方式的指示信息。
  25. 一种终端，其特征在于，包括：发射器、存储器、耦合于所述存储器的处理器，其中：
    所述接收器用于如果基于H个上行信号各自对应的功率控制参数确定的所述H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率，则根据所述H个上行信号相关的路径损耗确定所述H个上行信号中至少一个上行信号各自对应的第二发射功率；所述至少一个上行信号各自对应的第二发射功率的总和小于或等于所述终端的最大传输功率；H≥2，H是正整数；所述H个上行信号承载于第一时间单元内；
    所述发射器用于在所述第一时间单元内，基于所述至少一个上行信号各自对应的第二发射功率传输所述至少一个上行信号。
  26. 如权利要求25所述的终端，其特征在于，所述处理器具体用于：根据所述H个上行信号各自相关的路径损耗优先为路径损耗较小的所述至少一个上行信号确定所述至少一个上行信号各自对应的第二发射功率。
  27. 一种网络设备，其特征在于，包括：发射器、接收器、存储器、耦合于所述存储器的处理器，其中：
    所述发射器用于向终端发送配置信息，所述配置信息指示为M个上行信号资源或上行信号资源集合配置的N套功率控制参数；所述终端具有L个天线面板，所述N套功率控制参数是基于所述终端的K个天线面板配置的；M≥1，M是正整数，N＞1，N是正整数，2≤K≤L，K、L都是正整数；
    所述接收器用于在所述M个上行信号资源或上行信号资源集合上接收所述终端发送的上行信号。
  28. 一种网络设备，其特征在于，包括：发射器、接收器、存储器、耦合于所述存储器的处理器，其中：
    所述发射器用于向终端发送配置信息，所述配置信息指示为H个上行信号配置的功率控制参数；H≥2，H是正整数；所述H个上行信号承载于第一时间单元内；基于所述H个上行信号各自对应功率控制参数确定的所述H个上行信号各自对应的第一发射功率的总和大于终端的最大发射功率；
    所述接收器用于在所述第一时间单元内接收所述H个上行信号中至少一个上行信号，所述至少一个上行信号各自对应的第二发射功率的总和小于或等于所述终端的最大传输功率，所述至少一个上行信号各自对应的第二发射功率是根据所述H个上行信号各自相关的参考信号的信道质量信息确定的。
  29. 一种通信系统，其特征在于，包括：网络设备和终端，其中：
    所述网络设备为权利要求27所述的网络设备；
    所述终端为权利要求22-24中任一项所述的终端。
  30. 一种通信系统，其特征在于，包括：网络设备和终端，其中：
    所述网络设备为权利要求28所述的网络设备；
    所述终端为权利要求25-26中任一项所述的终端。
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