WO2022205366A1 - 无线通信方法、终端设备和网络设备 - Google Patents

无线通信方法、终端设备和网络设备 Download PDF

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Publication number
WO2022205366A1
WO2022205366A1 PCT/CN2021/085081 CN2021085081W WO2022205366A1 WO 2022205366 A1 WO2022205366 A1 WO 2022205366A1 CN 2021085081 W CN2021085081 W CN 2021085081W WO 2022205366 A1 WO2022205366 A1 WO 2022205366A1
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Prior art keywords
srs
rbs
consecutive
ofdm symbols
ofdm symbol
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PCT/CN2021/085081
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English (en)
French (fr)
Inventor
田杰娇
陈文洪
史志华
黄莹沛
方昀
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to EP21934024.7A priority Critical patent/EP4319009A4/en
Priority to PCT/CN2021/085081 priority patent/WO2022205366A1/zh
Priority to CN202180096689.0A priority patent/CN117121416A/zh
Publication of WO2022205366A1 publication Critical patent/WO2022205366A1/zh
Priority to US18/447,878 priority patent/US20230388075A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/0012Hopping in multicarrier systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094Indication of how sub-channels of the path are allocated

Definitions

  • the embodiments of the present application relate to the field of communication, and more particularly, to a wireless communication method, terminal device, and network device.
  • Sounding reference signal (Sounding Reference Signal, SRS) is an important reference signal in New Radio (New Radio, NR) system.
  • the frequency domain configuration of SRS is determined by the frequency domain related parameters C SRS and B SRS in Table 6.4.1.4.3-1 of the standard 38.211.
  • the continuous resource block (Resource Block) used for transmitting SRS can be determined.
  • the number of Block, RB) m SRS,b , b B SRS .
  • the terminal device may determine m SRS, b consecutive RBs as frequency domain positions for transmitting SRS.
  • this method of determining the frequency domain position of the transmission SRS leads to the problem that the bandwidth occupied by the SRS is relatively large.
  • the embodiments of the present application provide a wireless communication method, a terminal device, and a network device, so that the bandwidth occupied by the SRS can be reduced.
  • a first aspect provides a wireless communication method, comprising: a terminal device determining an initial number of RBs for transmitting SRS on each OFDM symbol in consecutive OFDM symbols according to frequency-domain related parameters and a first correspondence, where the first correspondence is Correspondence between the frequency domain related parameters and the initial number of RBs; the terminal device determines the first continuous RB used for transmitting SRS according to the initial number of RBs and the frequency domain related parameters; The actual number of RBs is determined, and the position of the second continuous RB used for transmitting the SRS on each OFDM symbol in the first continuous RB is determined according to the position information, and the number of RBs of the second continuous RB is the actual number of RBs.
  • a wireless communication method including: a network device sending SRS configuration information to a terminal device, where the configuration information includes: frequency domain related parameters, adjustment factors and location information; wherein the frequency domain related parameters are used to determine the continuous
  • the actual number of RBs of the initial number, the location information is used to indicate the location of the second consecutive RBs in the first consecutive RBs on each OFDM symbol, and the number of RBs of the second consecutive RBs is the actual number of RBs.
  • a terminal device including: a processing unit configured to: determine an initial number of RBs used to transmit SRS on each OFDM symbol in an OFDM symbol according to frequency-domain related parameters and a first correspondence, the first correspondence The relationship is the corresponding relationship between the frequency domain related parameters and the initial number of RBs; the first continuous RB used to transmit SRS is determined according to the initial number of RBs and the frequency domain related parameters; the initial number of RBs is adjusted according to the adjustment factor, and the actual number of RBs less than the initial number of RBs is obtained. and determine the position of the second continuous RB used for transmitting the SRS in the first continuous RB on each OFDM symbol according to the position information, and the number of RBs of the second continuous RB is the actual number of RBs.
  • a network device including: a communication unit configured to send SRS configuration information to a terminal device, where the configuration information includes: frequency domain related parameters, adjustment factors and location information; wherein the frequency domain related parameters are used for Determine the initial number of RBs used to transmit SRS on each OFDM symbol in consecutive OFDM symbols, the initial number of RBs and frequency-domain related parameters are used to determine the first continuous RB used to transmit SRS, and the adjustment factor is used to adjust the initial number of RBs to obtain The actual number of RBs smaller than the initial number of RBs, the location information is used to indicate the location of the second consecutive RBs in the first consecutive RBs on each OFDM symbol, and the number of RBs of the second consecutive RBs is the actual number of RBs.
  • the configuration information includes: frequency domain related parameters, adjustment factors and location information; wherein the frequency domain related parameters are used for Determine the initial number of RBs used to transmit SRS on each OFDM symbol in consecutive OFDM symbols, the initial number of RBs and frequency-domain related parameters are
  • a terminal device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.
  • a network device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.
  • an apparatus for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.
  • the apparatus includes: a processor for calling and running a computer program from a memory, so that a device installed with the apparatus executes any one of the above-mentioned first to second aspects or each of its implementations method.
  • a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program product comprising computer program instructions, the computer program instructions cause a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.
  • a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.
  • the terminal device can adjust the initial number of RBs according to the adjustment factor to obtain the actual number of RBs that is less than the initial number of RBs, and determine the second consecutive RBs used to transmit SRS on each OFDM symbol according to the location information. For the position in a continuous RB, compared with the solution without the adjustment factor and the position information, the technical solution provided by the present application achieves the effect of reducing the bandwidth occupied by the SRS.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a time slot offset between trigger signaling and SRS transmission provided by an embodiment of the present application
  • FIG. 3 is a time-domain schematic diagram of an SRS provided by an embodiment of the present application.
  • FIG. 4 is another time-domain schematic diagram of an SRS provided by an embodiment of the present application.
  • FIG. 5 is a flowchart of a wireless communication method provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a frequency domain distribution of an SRS provided by an embodiment of the present application.
  • FIG. 7 is another schematic diagram of frequency domain distribution of SRS provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of still another frequency domain distribution of SRS provided by an embodiment of the present application.
  • FIG. 9 is another schematic diagram of frequency domain distribution of SRS provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of yet another frequency domain distribution of SRS provided by an embodiment of the present application.
  • FIG. 11 is another schematic diagram of frequency domain distribution of SRS provided by an embodiment of the present application.
  • FIG. 12 shows a schematic block diagram of a terminal device 1200 according to an embodiment of the present application.
  • FIG. 13 shows a schematic block diagram of a network device 1300 according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a communication device 1400 provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a device according to an embodiment of the present application.
  • FIG. 16 is a schematic block diagram of a communication system 1600 provided by an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • Wideband Code Division Multiple Access Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • NR system NR system evolution system
  • LTE LTE-based access to unlicensed spectrum, LTE-U
  • NR NR-based access to unlicensed spectrum, NR-U
  • NR-U Universal Mobile Telecommunication System
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Fidelity
  • WiFi next-generation communication system or other communication systems, etc.
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • This embodiment of the present application does not limit the applied spectrum.
  • the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal).
  • the network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.
  • a device having a communication function in the network/system may be referred to as a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.
  • terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • access terminal subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • the terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.
  • STAION, ST in the WLAN
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones.
  • a network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a WCDMA
  • the base station (NodeB, NB) can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or an access point, or a vehicle-mounted device, a wearable device, and a network device or base station in an NR network ( gNB) or network equipment in the future evolved PLMN network, etc.
  • gNB NR network
  • a network device provides services for a cell
  • a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell
  • the cell may be a network device (for example, a frequency domain resource).
  • the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell), where the small cell can include: Metro cell, Micro cell, Pico cell cell), Femto cell, etc.
  • These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.
  • MIMO Multiple-Input Multiple-Output
  • the SRS can be used for uplink channel state information (Channel State information, CSI) acquisition, downlink channel information acquisition, and uplink beam management.
  • the NR system manages and configures the SRS in the form of an SRS resource set.
  • the network device may configure multiple SRS resource sets for the terminal device, each SRS resource set includes one or more SRS resources, and each SRS resource includes 1, 2 or 4 ports.
  • the configuration information of each SRS resource set contains a usage indication, which can be configured as "beamManagement", "codebook”, “nonCodebook” or “antennaswitching", which are respectively used for uplink beam management, codebook-based CSI acquisition, and non-codebook-based CSI acquisition.
  • the transmission of SRS can be divided into periodic (Periodic), semi-persistent (Semi-persistent), and aperiodic (Aperiodic). The details are as follows:
  • Periodic SRS refers to the periodically transmitted SRS, and its period and slot offset are configured by radio resource control (Radio Resource Control, RRC) signaling. Once the terminal device receives these two configuration parameters, it will follow certain The SRS is sent periodically until the two configuration parameters expire.
  • the spatial correlation information (Spatial Relation Info) of the periodic SRS is also configured by RRC signaling.
  • the spatial correlation information may indicate a channel state information reference signal (Channel state information-Reference Signal, CSI-RS), a synchronization signal block (Synchronization Signal Block, SSB) or a reference SRS, the terminal device according to the CSI-RS, SSB or reference SRS of the receive beam to determine the transmit beam of the SRS.
  • Semi-persistent SRS is also a periodically transmitted SRS.
  • the period and time slot offset are configured by RRC signaling, but its activation and deactivation signaling is carried by the Media Access Control Control Element (MAC CE). of.
  • MAC CE Media Access Control Control Element
  • the terminal device After receiving the activation signaling, the terminal device starts to periodically transmit the SRS until the deactivation signaling is received.
  • the spatially related information of the semi-persistent SRS is carried together with the MAC CE that activates the SRS.
  • the terminal device determines the time slot for transmitting SRS according to the following formula:
  • T SRS and T offset are the period and time offset configured by RRC signaling
  • n f are the radio frame number and time slot number, respectively.
  • aperiodic SRS transmission is introduced, and the network device can trigger the SRS transmission of the terminal device through uplink or downlink control information (Downlink control information, DCI).
  • DCI Downlink control information
  • the trigger signaling for triggering aperiodic SRS transmission can be carried by the DCI used to schedule the Physical Uplink Shared Channel (PUSCH) or the Physical Downlink Shared Channel (Physical Downlink Shared Channel) in the UE-specific search space. , and can also be carried by DCI format 2_3 in the public search space.
  • the terminal device After receiving the trigger signaling, the terminal device performs SRS transmission on the SRS resource set indicated by the trigger signaling.
  • the time slot offset (slot offset) between the trigger signaling and the SRS transmission is configured by the higher layer signaling.
  • the network device may indicate the configuration parameters of each SRS resource set to the terminal device through high-layer signaling in advance, including time-frequency resources, sequence parameters, power control parameters, and the like.
  • the terminal device can also determine the transmission beam used for transmitting SRS on the resource through the spatial correlation information of the resource, and the spatial correlation information can be configured to each SRS through RRC signaling.
  • SRS resources are examples of the transmission beam used for transmitting SRS on the resource through the spatial correlation information of the resource.
  • FIG. 2 is a schematic diagram of a time slot offset between trigger signaling and SRS transmission provided by an embodiment of the present application. As shown in FIG. 2 , the time slot offset (slot offset) between trigger signaling and SRS transmission here is shown in FIG. 2 . is 3, wherein "D" in Fig. 2 represents a downlink time slot, “F” represents a flexible time slot, and "U” represents an uplink time slot.
  • Each SRS resource can be configured in any symbol of a time slot.
  • the terminal device can repeatedly transmit the SRS. Therefore, each SRS resource can be configured to represent the continuous OFDM symbols occupied by the SRS resource. quantity These consecutive OFDM symbols are OFDM symbols used to transmit repeated SRS.
  • the time domain start symbol of SRS is calculated by the following formula:
  • l 0 represents the time domain start symbol of SRS
  • l offset represents a time offset from the last symbol to the start symbol of the SRS.
  • the NR system supports frequency hopping of the SRS. If b hop ⁇ B SRS is satisfied, the terminal device sends the SRS in the form of frequency hopping, where b hop is an RRC configuration parameter.
  • b hop is an RRC configuration parameter.
  • m SRS,0 in Table 6.4.1.4.3-1 is the total bandwidth of SRS frequency hopping
  • m SRS,b is the number of consecutive RBs sent in each frequency hopping, namely The number of physical resource blocks (Physical Resource Block, PRB) sent per frequency hopping.
  • PRB Physical Resource Block
  • n b represents the frequency domain position of each frequency hopping
  • N b represents the equal number of divisions of the total bandwidth of SRS frequency hopping, which is determined by 38.211-Table 6.4.1.4.3-1
  • n RRC is the RRC configuration parameter, where F b (n SRS ) is determined by the following formula:
  • n SRS represents an index of the number of SRS frequency hopping. For example, if the number of SRS frequency hopping is 4, the value of n SRS may be 0, 1, 2, and 3.
  • the index of the number of SRS hopping is given by the formula Sure.
  • l' is an index of the number of consecutive OFDM symbols occupied by the SRS. For example, if the number of consecutive OFDM symbols occupied by the SRS is 4, the value of l' may be 0, 1, 2, or 3.
  • the number of SRS hopping is determined by the following formula:
  • T SRS and T offset are the period and time offset configured through RRC signaling, n f and are the radio frame number and time slot number, respectively, The meanings represented by l' and R can be referred to above, which will not be repeated in this application.
  • the terminal device may determine m SRS, b consecutive RBs as frequency domain positions for transmitting SRS.
  • this method of determining the frequency domain position of the transmission SRS leads to the problem that the bandwidth occupied by the SRS is relatively large.
  • this application considers to determine the bandwidth narrower than m SRS and b consecutive RBs as the frequency domain position of SRS transmission.
  • the reasons are: 1.
  • the configured partial bandwidth (BandWidth Part, BWP ) in the uplink or downlink some part of the bandwidth will suffer severe interference from other wireless systems such as video backhaul systems. Therefore, data scheduling cannot be performed in such frequency domain parts, and it is unnecessary to transmit SRS in such frequency domain parts.
  • BWP BandWidth Part
  • the channel has a high correlation in the entire frequency band. Therefore, it is only necessary to transmit SRS on part of the frequency band, and the bandwidth without SRS transmission can be reconstructed by means of interpolation, which can enhance the coverage capability of SRS while ensuring the quality of channel sounding.
  • the beneficial effect of the technical solution of the present application is that the bandwidth occupied by the SRS can be reduced. Further, there are the following two advantages: 1. When the transmission bandwidth of the SRS is narrowed, it is equivalent to improving the power density of the SRS, so that additional power gain can be obtained. 2. When the transmission bandwidth of the SRS is narrowed, the network device can allocate the remaining bandwidth in the total bandwidth to other users, so that the utilization rate of the bandwidth can be improved.
  • FIG. 5 is a flowchart of a wireless communication method provided by an embodiment of the present application. As shown in FIG. 5 , the method includes the following steps:
  • the terminal device determines the initial number of resource blocks RB used for transmitting the sounding reference signal SRS on each OFDM symbol in the consecutive OFDM symbols according to the frequency domain related parameters and the first correspondence, and the first correspondence is the frequency The correspondence between the domain-related parameters and the initial number of RBs.
  • the terminal device determines the first continuous RB for transmitting the SRS according to the initial number of RBs and frequency-domain related parameters.
  • the terminal device adjusts the initial number of RBs according to the adjustment factor, obtains the actual number of RBs that is less than the initial number of RBs, and determines the position of the second consecutive RBs used to transmit the SRS on each OFDM symbol in the first consecutive RBs according to the location information,
  • the RB number of the second consecutive RB is the actual number of RBs.
  • the terminal device acquires SRS configuration information, where the configuration information includes: frequency domain related parameters, adjustment factors and location information.
  • the configuration information further includes: a starting OFDM symbol and the number of occupied consecutive OFDM symbols, where the starting OFDM symbol and the number of consecutive OFDM symbols are used to determine the consecutive OFDM symbols.
  • the configuration information further includes the terminated OFDM and the number of occupied consecutive OFDM symbols, where the terminated OFDM symbol and the number of consecutive OFDM symbols are used to determine the consecutive OFDM symbols.
  • the present application does not limit how to determine the consecutive OFDM symbols.
  • the network device may configure one or more SRS resource sets to the terminal device through RRC signaling, each SRS resource set includes one or more SRS resources, and the SRS in this application is also referred to as SRS resources.
  • the SRS in this application may be the SRS in one transmission in the periodic, aperiodic or semi-persistent SRS transmission, and one SRS transmission may occupy one OFDM symbol, or may occupy multiple consecutive OFDM symbols, that is, there are repetitions. transmission situation.
  • the frequency-domain related parameters of the SRS include CSRS and B SRS in 38.211-Table 6.4.1.4.3-1, but are not limited thereto.
  • the frequency domain related parameters of the SRS further include a parameter b hop , but not limited thereto.
  • the starting OFDM symbol of the SRS is also referred to as the starting position of the SRS in the time domain.
  • the number of consecutive OFDM symbols occupied by the SRS is one or more.
  • the configuration information of the SRS further includes: a repetition factor R, that is, frequency hopping is performed once every R OFDM symbols.
  • the first contiguous RB is the contiguous RB theoretically used to transmit the SRS
  • the second contiguous RB is the contiguous RB actually used to transmit the SRS.
  • the initial number of RBs refers to the number of RBs included in the first continuous RB
  • the actual number of RBs is the number of RBs obtained by adjusting the initial number of RBs by an adjustment factor, which is also the number of RBs included in the second continuous RB.
  • the adjustment factor is used to adjust the initial number of RBs to obtain the actual number of RBs.
  • the adjustment factor is any number greater than 1, which can be an integer or a non-integer.
  • the adjustment factor is any one of the following sets: ⁇ 2, 3, 4, 8 ⁇ , ⁇ 2, 4,8 ⁇ , ⁇ 2,4 ⁇ , ⁇ 2 ⁇ .
  • the terminal device can As the actual number of RBs, where PF represents the adjustment factor, m SRS, b represents the initial number of RBs, is the round down symbol.
  • the adjustment factor when the terminal device adjusts the initial number of RBs through the adjustment factor, the adjustment factor will also cause a change in the sequence length of the SRS, and the sequence length of the SRS in this case is referred to as the new SRS.
  • Sequence length specifically, the new sequence length of SRS can be calculated by the following formula:
  • PF represents the adjustment factor
  • K TC represents the number of combs, which can be 2, 4, or 8 at most.
  • the size of PF is limited:
  • the new sequence length of the SRS is greater than or equal to 12.
  • the new sequence length of the SRS is greater than or equal to the minimum value specified by the current protocol.
  • the adjustment factor can also be greater than 0 and less than 1, for example: the adjustment factor is the above
  • the adjustment factor is configured based on each SRS resource.
  • the network device configures an SRS resource set for the terminal device, the SRS resource set includes: SRS resource 1 and SRS resource 2, and the network device configures corresponding adjustment factors for the SRS resource 1 and SRS resource 2 respectively,
  • the adjustment factors configured for SRS resource 1 and SRS resource 2 may be the same or different, which is not limited in this application.
  • the adjustment factor is configured based on all SRS resources in each SRS set.
  • the network device configures an SRS resource set for the terminal device, the SRS resource set includes: SRS resource 1 and SRS resource 2, and the network device configures adjustment factors for the SRS resource set, that is, SRS resource 1 and SRS resource. 2 are configured with the same adjustment factor.
  • the adjustment factor is determined by a protocol, or is configured through higher layer signaling, for example, the adjustment factor is configured through RRC signaling.
  • the adjustment factor may remain unchanged, or the terminal device may update the adjustment factor according to an update instruction sent by the network device, which is not limited in this application.
  • the update instruction is MAC CE signaling or DCI, which is not limited in this application.
  • the location information is used to indicate the location of the second consecutive RBs in the first consecutive RBs on each OFDM symbol.
  • the location information is configured based on each SRS resource.
  • the network device configures an SRS resource set for the terminal device, the SRS resource set includes: SRS resource 1 and SRS resource 2, and the network device configures corresponding location information for the SRS resource 1 and SRS resource 2 respectively,
  • the configured location information of SRS resource 1 and SRS resource 2 may be the same or different, which is not limited in this application.
  • the location information is configured based on all SRS resources in each SRS set.
  • the network device configures an SRS resource set for the terminal device, the SRS resource set includes: SRS resource 1 and SRS resource 2, and the network device configures location information for the SRS resource set, that is, SRS resource 1 and SRS resource. 2 is configured with the same location information.
  • the network device may perform joint coding or independent coding on the adjustment factor and the location information, which is not limited in this application.
  • the terminal device may report its capability to the network device.
  • the capability refers to whether the terminal device supports adjusting the transmission bandwidth of the SRS through the adjustment factor. If the terminal device supports By adjusting the transmission bandwidth of the SRS by the adjustment factor, the network device configures the adjustment factor and location information for the terminal device, otherwise, the network device does not adjust the factor and location information for the terminal device.
  • the terminal device can adjust the initial number of RBs according to the adjustment factor to obtain the actual number of RBs that is less than the initial number of RBs, and determine the second consecutive RBs used to transmit SRS on each OFDM symbol according to the location information.
  • the technical solution provided by the present application achieves the effect of reducing the bandwidth occupied by the SRS.
  • the SRS may occupy one OFDM symbol, or may occupy multiple consecutive OFDMs.
  • the following examples illustrate the value range of the location information and the meaning of the location information:
  • the first consecutive RBs on the one OFDM symbol include PF kinds of positions, wherein one value of the position information corresponds to one of the PF kinds of positions, for example, each value of the position information corresponds to the PF kinds of positions one-to-one.
  • the position information indicates that the position of the second continuous RB of the OFDM symbol in the first continuous RB is Y+1.
  • the PF types of positions may be PF equal parts into which the first continuous RB is divided, or may also be PF unequal parts, which are not limited in this application.
  • each value of the position information and the PF position can be any of the following, but is not limited to this: each value of the position information from small to large and the PF position in the frequency domain from small to small
  • the large order corresponds one-to-one, or, each value of the position information from small to large corresponds to the PF kinds of positions in the frequency domain from large to small in a one-to-one order.
  • FIG. 6 is a schematic diagram of a frequency domain distribution of SRS provided by an embodiment of the present application. As shown in FIG.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, wherein one value of the position information corresponds to one of the PF kinds of positions, for example, each value of the position information corresponds to the PF position on each OFDM symbol One-to-one correspondence of each position. If the value of the position information is Y, the position information indicates that the position of the second continuous RB of each OFDM symbol in the first continuous RB is Y+1. It should be noted that, for each OFDM symbol, the PF positions on it may be PF equal divisions into which the first continuous RB is divided, or may also be PF unequal divisions, which are not limited in this application.
  • each value of the position information is from small to large and The PF kinds of positions correspond one-to-one in the order from small to large in the frequency domain, or, each value of the position information from small to large corresponds to the order of the PF kinds of positions in the frequency domain from large to small.
  • FIG. 7 is another schematic diagram of the frequency domain distribution of the SRS provided by the embodiment of the application. As shown in FIG.
  • FIG. 7 only shows the first consecutive RB and the second consecutive RB on the 4th OFDM symbol among the 4 consecutive OFDM symbols. In fact, each OFDM symbol has the first consecutive RB and the second consecutive RB. Consecutive RB and second contiguous RB.
  • the terminal device determines that b hop ⁇ B SRS , it means that frequency hopping is enabled, and if the terminal device determines that b hop ⁇ B SRS , it means that frequency hopping is not enabled, which will not be repeated below.
  • the position information is one piece of information, it means that the frequency domain positions of the SRS on consecutive OFDM symbols are exactly the same.
  • the position information includes multiple sub-information, it means that the frequency domain positions of the SRS on consecutive OFDM symbols are different. It is exactly the same, and will not be repeated here.
  • Example 3 If the number of occupied consecutive OFDM symbols is greater than 1, frequency hopping is determined not to be enabled according to the frequency domain related parameters, and the frequency domain positions of the SRS on consecutive OFDM symbols are determined not to be exactly the same according to the location information, then the location information includes Ns
  • the first sub-information, Ns represents the number of occupied consecutive OFDM symbols, and the value of each first sub-information is any item in the set ⁇ 0, 1, . . . PF-1 ⁇ , where PF represents an adjustment factor.
  • the Ns pieces of first sub-information are in one-to-one correspondence with consecutive OFDM symbols.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, wherein a value of the first sub-information corresponding to each OFDM symbol corresponds to one of the positions in the PF, for example: the corresponding position of each OFDM symbol
  • Each value of the first sub-information is in one-to-one correspondence with the PF positions on the OFDM symbol.
  • the first sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1. It should be noted that, for each OFDM symbol, the PF positions on it may be PF equal divisions into which the first continuous RB is divided, or may also be PF unequal divisions, which are not limited in this application.
  • the one-to-one correspondence between the respective values of the first sub-information and the PF positions on the symbol may be any of the following, but not limited to this: the respective values of the first sub-information are determined by Small to large corresponds to the PF position in the frequency domain from small to large, or the values of the first sub-information from small to large correspond to the PF position in the frequency domain from large to small.
  • FIG. 8 is another schematic diagram of the frequency domain distribution of the SRS provided by the embodiment of the present application. As shown in FIG.
  • the 1st+1 2 equal division of the RB
  • the second consecutive RB on the 4th OFDM symbol is the 1st consecutive RB.
  • FIG. 8 only shows the first and second consecutive RBs on the 4th OFDM symbol among the 4 consecutive OFDM symbols. In fact, each OFDM symbol has the first and second consecutive RBs. Continuous RB.
  • Example 4 If the number of occupied consecutive OFDM symbols is greater than 1, it is determined to enable frequency hopping according to the frequency domain related parameters, and it is determined according to the location information that the frequency domain positions of the SRS on the first consecutive RBs corresponding to the consecutive OFDM symbols are exactly the same, then
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and one value of the position information corresponds to one of the PF kinds of positions, for example, each value of the position information corresponds to the PF kinds of positions on each OFDM symbol One-to-one correspondence. If the value of the position information is Y, the position information indicates that the position of the second continuous RB of each OFDM symbol in the first continuous RB is Y+1. It should be noted that, for each OFDM symbol, the PF positions on it may be PF equal divisions into which the first continuous RB is divided, or may also be PF unequal divisions, which are not limited in this application.
  • each value of the position information is from small to large and The PF kinds of positions correspond one-to-one in the order from small to large in the frequency domain, or, each value of the position information from small to large corresponds to the order of the PF kinds of positions in the frequency domain from large to small.
  • Example 4 since the terminal device determines to enable frequency hopping according to the frequency domain related parameters, it can determine the first frequency hopping position through the above formula (2), that is, determine the first continuous frequency on each OFDM symbol RB, and secondly, the terminal device determines the position of the second continuous RB in the first continuous RB on each OFDM symbol according to the value Y of the position information.
  • FIG. 9 is another schematic diagram of the frequency domain distribution of the SRS provided by the embodiment of the present application. As shown in FIG.
  • the determined first frequency hopping position is 1230, that is, it is assumed that the bandwidth is divided into 4 equal parts, and the index of the first continuous RB on the first OFDM symbol on 4 continuous OFDMs is 1 according to the order from small to large in the frequency domain.
  • Example 5 If the number of occupied consecutive OFDM symbols is greater than 1, it is determined to enable frequency hopping according to the frequency domain related parameters, and it is determined according to the location information that the SRS on the first consecutive RBs corresponding to consecutive OFDM symbols are not exactly the same, then the location information Including Ns/R pieces of second sub-information, Ns indicates the number of occupied consecutive OFDM symbols, R indicates frequency hopping once every R OFDM symbols, and the value of each second sub-information is set ⁇ 0, 1, ... PF -1 ⁇ , where PF represents an adjustment factor.
  • the Ns/R pieces of second sub-information are in one-to-one correspondence with Ns/R groups of OFDM symbols in consecutive OFDM symbols.
  • the first consecutive RBs on each OFDM symbol include PF kinds of positions, and a value of the second sub-information corresponding to each OFDM symbol corresponds to one of the PF kinds of positions, for example: the first position corresponding to each OFDM symbol
  • Each value of the two sub-information corresponds one-to-one with the PF positions on each OFDM symbol.
  • the second sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1. It should be noted that, for each OFDM symbol, the PF positions on it may be PF equal divisions into which the first continuous RB is divided, or may also be PF unequal divisions, which are not limited in this application.
  • the one-to-one correspondence between the respective values of the second sub-information and the PF positions on the symbol may be any of the following, but not limited to this: the respective values of the second sub-information are determined by Small to large corresponds to the PF position in the frequency domain from small to large, or the values of the second sub-information from small to large correspond to the PF position in the frequency domain from large to small.
  • FIG. 10 is another schematic diagram of the frequency domain distribution of the SRS provided by the embodiment of the application. As shown in FIG.
  • the determined first frequency hopping position is 1230, that is, it is assumed that the bandwidth is divided into 4 equal parts, and the index of the first continuous RB on the first OFDM symbol on 4 continuous OFDMs is 1 according to the order from small to large in the frequency domain.
  • Example 6 If the number of occupied consecutive OFDM symbols is greater than 1, it is determined to enable frequency hopping according to the frequency domain related parameters, and it is determined according to the location information that the SRS on the first consecutive RBs corresponding to consecutive OFDM symbols are not exactly the same, then the terminal equipment The position of the second continuous RB on each OFDM symbol in the first continuous RB is determined according to at least one of the position information, the index of the frequency hopping times, and the adjustment factor. The indices of the frequency hopping times correspond to consecutive OFDM symbols one-to-one.
  • the terminal device may determine the position of the second continuous RB on each OFDM symbol in the first continuous RB according to the following formula:
  • FY b (n SRS ) n SRS
  • n SRS is the index of the frequency hopping times
  • the index of the frequency hopping times is 0 ⁇ Ns/R-1
  • N s represents the number of occupied consecutive OFDM symbols
  • R represents the number of occupied consecutive OFDM symbols.
  • R OFDM symbols are hopped once. For example, if the number of frequency hopping is 4, then the value of n SRS can be 0, 1, 2 or 3.
  • n SRS can be 0, 1, 2 or 3.
  • FIG. 11 is another schematic diagram of the frequency domain distribution of the SRS provided by the embodiment of the present application.
  • the terminal device uses the adjustment factor and location information.
  • the terminal device can also limit the adjustment factor and location information.
  • the adjustment factor and location information are used when frequency hopping is enabled.
  • the network device does not configure the adjustment factor and location information to the terminal device, or the terminal device does not expect to obtain the adjustment factor and location information.
  • the adjustment factor and location information do not work when frequency hopping is not enabled, that is, even if the network device configures the adjustment factor and location information for the terminal device, but the terminal device does not use it without enabling frequency hopping.
  • the adjustment factor and location information do not work when frequency hopping is not enabled, that is, even if the network device configures the adjustment factor and location information for the terminal device, but the terminal device does not use it without enabling frequency hopping.
  • the adjustment factor and location information do not work when frequency hopping is not enabled, that is, even if the network device configures the adjustment factor and location information for the terminal device, but the terminal device does not use it without enabling frequency hopping.
  • FIG. 12 shows a schematic block diagram of a terminal device 1200 according to an embodiment of the present application.
  • the terminal device 1200 includes: a processing unit 1210, configured to: determine the initial number of RBs used to transmit SRS on each OFDM symbol in the OFDM symbol according to the frequency domain related parameters and the first correspondence, the first correspondence The relationship is the corresponding relationship between the frequency domain related parameters and the initial number of RBs; the first continuous RB used to transmit SRS is determined according to the initial number of RBs and the frequency domain related parameters; the initial number of RBs is adjusted according to the adjustment factor, and the actual number of RBs less than the initial number of RBs is obtained. and determine the position of the second continuous RB used for transmitting the SRS in the first continuous RB on each OFDM symbol according to the position information, and the number of RBs of the second continuous RB is the actual number of RBs.
  • the location information is used to indicate the location of the second consecutive RBs on each OFDM symbol in the first consecutive RBs.
  • the adjustment factor is greater than 1.
  • the adjustment factor is any one of the following sets: ⁇ 2,3,4,8 ⁇ , ⁇ 2,4,8 ⁇ , ⁇ 2,4 ⁇ , ⁇ 2 ⁇ .
  • the processing unit 1210 is specifically configured to: calculate the product of the reciprocal of the adjustment factor and the initial number of RBs to obtain a product result. Round down the product result to get the actual number of RBs.
  • the value of the location information is any item in the set ⁇ 0, 1, ... PF-1 ⁇ , where PF represents an adjustment factor.
  • the value of the location information is determined. is any item in the set ⁇ 0,1,...PF-1 ⁇ , where PF represents the adjustment factor.
  • the value of the location information is any item in the set ⁇ 0, 1, . . . PF-1 ⁇ , where PF represents an adjustment factor.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and one value of the position information corresponds to one of the PF kinds of positions. If the value of the position information is Y, the position information indicates that the position of the second continuous RB of each OFDM symbol in the first continuous RB is Y+1.
  • the location information includes Ns A first sub-information, Ns represents the number of occupied consecutive OFDM symbols, and the value of each first sub-information is any item in the set ⁇ 0, 1, . . . PF-1 ⁇ , where PF represents an adjustment factor.
  • the Ns pieces of first sub-information are in one-to-one correspondence with consecutive OFDM symbols.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and a value of the first sub-information corresponding to each OFDM symbol corresponds to one of the PF kinds of positions. If the value of the first sub-information corresponding to each OFDM symbol is Y, the first sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1.
  • the location information includes Ns/R pieces of second sub-information, Ns indicates the number of occupied consecutive OFDM symbols, R indicates that frequency hopping is performed once every R OFDM symbols, and the value of each second sub-information is the set ⁇ 0, 1, ... Any of PF-1 ⁇ , where PF represents an adjustment factor.
  • the Ns/R pieces of second sub-information are in one-to-one correspondence with Ns/R groups of OFDM symbols in consecutive OFDM symbols.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and one value of the second sub-information corresponding to each OFDM symbol corresponds to one of the PF kinds of positions. If the value of the second sub-information corresponding to each OFDM symbol is Y, the second sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1.
  • the processing unit 1210 is specifically configured to: if the number of occupied consecutive OFDM symbols is greater than 1, determine to enable frequency hopping according to the frequency domain related parameters, and determine that the SRS is on the first consecutive RB corresponding to the consecutive OFDM symbols according to the location information. are not exactly the same, the position of the second continuous RB on each OFDM symbol in the first continuous RB is determined according to at least one of the position information, the index of the frequency hopping times, and the adjustment factor.
  • the indices of the frequency hopping times correspond one-to-one with consecutive OFDM symbols.
  • the processing unit 1210 is specifically configured to: calculate the sum of the index corresponding to each OFDM symbol and the value of the position information, and obtain a summation result. A remainder operation is performed on the summation result and the adjustment factor to obtain the position of the second continuous RB on each OFDM symbol in the first continuous RB.
  • the index of the frequency hopping times ranges from 0 to Ns/R-1, where Ns represents the number of occupied consecutive OFDM symbols, and R represents that frequency hopping is performed once every R OFDM symbols.
  • the adjustment factor and location information are obtained when frequency hopping is enabled.
  • the adjustment factor and location information do not work without frequency hopping turned on.
  • the adjustment factor and the location information are coded jointly or independently.
  • the adjustment factor is configured based on each SRS resource, or is configured based on all SRS resources in each SRS set.
  • the location information is configured based on each SRS resource, or is configured based on all SRS resources in each SRS set.
  • the sequence length of the SRS adjusted by the adjustment factor needs to be greater than or equal to the preset length.
  • the preset length is 12 or the minimum length specified by the protocol.
  • the adjustment factor is determined by the protocol, or configured through high-layer signaling.
  • the terminal device further includes: a communication unit 1220 for acquiring an update instruction, and the processing unit 1210 for updating the adjustment factor according to the update instruction.
  • the update instruction is MAC CE signaling or DCI.
  • the communication unit 1220 is further configured to acquire configuration information of the SRS, where the configuration information includes: frequency domain related parameters, adjustment factors and location information.
  • the configuration information further includes: a starting OFDM symbol and the number of occupied consecutive OFDM symbols, where the starting OFDM symbol and the number of consecutive OFDM symbols are used to determine the consecutive OFDM symbols.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 1200 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 1200 are respectively for realizing the terminal device in the method embodiment.
  • the corresponding process corresponding to the device is not repeated here for brevity.
  • FIG. 13 shows a schematic block diagram of a network device 1300 according to an embodiment of the present application.
  • the network device 1300 includes: a communication unit 1310 for sending SRS configuration information to the terminal device, the configuration information includes: frequency domain related parameters, adjustment factors and location information; wherein the frequency domain related parameters are used for Determine the initial number of RBs used to transmit SRS on each OFDM symbol in consecutive OFDM symbols, the initial number of RBs and frequency-domain related parameters are used to determine the first continuous RB used to transmit SRS, and the adjustment factor is used to adjust the initial number of RBs to obtain The actual number of RBs smaller than the initial number of RBs, the location information is used to indicate the location of the second consecutive RBs in the first consecutive RBs on each OFDM symbol, and the number of RBs of the second consecutive RBs is the actual number of RBs.
  • the adjustment factor is greater than 1.
  • the adjustment factor is any one of the following sets: ⁇ 2,3,4,8 ⁇ , ⁇ 2,4,8 ⁇ , ⁇ 2,4 ⁇ , ⁇ 2 ⁇ .
  • the value of the location information is any item in the set ⁇ 0, 1, ... PF-1 ⁇ , where PF represents an adjustment factor.
  • the value of the location information is determined. is any item in the set ⁇ 0,1,...PF-1 ⁇ , where PF represents the adjustment factor.
  • the value of the location information is any item in the set ⁇ 0, 1, . . . PF-1 ⁇ , where PF represents an adjustment factor.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and one value of the position information corresponds to one of the PF kinds of positions. If the value of the position information is Y, the position information indicates that the position of the second continuous RB of each OFDM symbol in the first continuous RB is Y+1.
  • the location information includes Ns A first sub-information, Ns represents the number of occupied consecutive OFDM symbols, and the value of each first sub-information is any item in the set ⁇ 0, 1, . . . PF-1 ⁇ , where PF represents an adjustment factor.
  • the Ns pieces of first sub-information are in one-to-one correspondence with consecutive OFDM symbols.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and a value of the first sub-information corresponding to each OFDM symbol corresponds to one of the PF kinds of positions. If the value of the first sub-information corresponding to each OFDM symbol is Y, the first sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1.
  • the location information includes Ns/R pieces of second sub-information, Ns indicates the number of occupied consecutive OFDM symbols, R indicates that frequency hopping is performed once every R OFDM symbols, and the value of each second sub-information is the set ⁇ 0, 1, ... Any of PF-1 ⁇ , where PF represents an adjustment factor.
  • the Ns/R pieces of second sub-information are in one-to-one correspondence with Ns/R groups of OFDM symbols in consecutive OFDM symbols.
  • the first continuous RB on each OFDM symbol includes PF kinds of positions, and one value of the second sub-information corresponding to each OFDM symbol corresponds to one of the PF kinds of positions. If the value of the second sub-information corresponding to each OFDM symbol is Y, the second sub-information corresponding to each OFDM symbol indicates that the position of the second continuous RB on each OFDM symbol in the first continuous RB is Y+ 1.
  • the location information is used to determine the position of the second consecutive RB in the first consecutive RB on each OFDM symbol.
  • the indices of the frequency hopping times correspond one-to-one with consecutive OFDM symbols.
  • the index of the frequency hopping times ranges from 0 to Ns/R-1, where Ns represents the number of occupied consecutive OFDM symbols, and R represents that frequency hopping is performed once every R OFDM symbols.
  • the adjustment factor and location information are obtained when frequency hopping is enabled.
  • the adjustment factor and location information do not work without frequency hopping turned on.
  • the adjustment factor and the location information are coded jointly or independently.
  • the adjustment factor is configured based on each SRS resource, or is configured based on all SRS resources in each SRS set.
  • the location information is configured based on each SRS resource, or is configured based on all SRS resources in each SRS set.
  • the sequence length of the SRS adjusted by the adjustment factor needs to be greater than or equal to the preset length.
  • the preset length is 12 or the minimum length specified by the protocol.
  • the adjustment factor is determined by the protocol, or configured through high-layer signaling.
  • the communication unit 1310 is further configured to send an update instruction to the terminal device.
  • the update instruction is used to update the adjustment factor.
  • the update instruction is MAC CE signaling or DCI.
  • the configuration information further includes: a starting OFDM symbol and the number of occupied consecutive OFDM symbols, where the starting OFDM symbol and the number of consecutive OFDM symbols are used to determine the consecutive OFDM symbols.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip.
  • the network device 1300 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 1300 are respectively for realizing the network device in the method embodiment.
  • the corresponding process corresponding to the device is not repeated here for brevity.
  • FIG. 14 is a schematic structural diagram of a communication device 1400 provided by an embodiment of the present application.
  • the communication device 1400 shown in FIG. 14 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the communication device 1400 may further include a memory 1420 .
  • the processor 1410 may call and run a computer program from the memory 1420 to implement the methods in the embodiments of the present application.
  • the memory 1420 may be a separate device independent of the processor 1410, or may be integrated in the processor 1410.
  • the communication device 1400 may further include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the processor 1410 may control the transceiver 1430 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.
  • the transceiver 1430 may include a transmitter and a receiver.
  • the transceiver 1430 may further include antennas, and the number of the antennas may be one or more.
  • the communication device 1400 may specifically be the network device of the embodiment of the present application, and the communication device 1400 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity .
  • the communication device 1400 may specifically be the terminal device of the embodiment of the present application, and the communication device 1400 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which is not repeated here for brevity .
  • FIG. 15 is a schematic structural diagram of an apparatus according to an embodiment of the present application.
  • the apparatus 1500 shown in FIG. 15 includes a processor 1510, and the processor 1510 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the apparatus 1500 may further include a memory 1520 .
  • the processor 1510 may call and run a computer program from the memory 1520 to implement the methods in the embodiments of the present application.
  • the memory 1520 may be a separate device independent of the processor 1510, or may be integrated in the processor 1510.
  • the apparatus 1500 may further include an input interface 1530 .
  • the processor 1510 can control the input interface 1530 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
  • the apparatus 1500 may further include an output interface 1540 .
  • the processor 1510 may control the output interface 1540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.
  • the apparatus may be applied to the terminal equipment in the embodiments of the present application, and the apparatus may implement the corresponding processes implemented by the terminal equipment in each method of the embodiments of the present application, which will not be repeated here for brevity.
  • the device mentioned in the embodiment of the present application may also be a chip.
  • it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 16 is a schematic block diagram of a communication system 1600 provided by an embodiment of the present application. As shown in FIG. 16 , the communication system 1600 includes a terminal device 1610 and a network device 1620 .
  • the terminal device 1610 can be used to implement the corresponding functions implemented by the terminal device in the above method
  • the network device 1620 can be used to implement the corresponding functions implemented by the network device or the base station in the above method. Repeat.
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be Random Access Memory (RAM), which acts as an external cache.
  • RAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM DDR SDRAM
  • enhanced SDRAM ESDRAM
  • synchronous link dynamic random access memory Synchlink DRAM, SLDRAM
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device or the base station in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.
  • Embodiments of the present application also provide a computer program product, including computer program instructions.
  • the computer program product can be applied to the network device or the base station in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device or the base station in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.
  • the embodiments of the present application also provide a computer program.
  • the computer program can be applied to the network device or the base station in the embodiments of the present application, and when the computer program runs on the computer, the computer can execute the corresponding methods implemented by the network device or the base station in each method of the embodiments of the present application.
  • the process for the sake of brevity, will not be repeated here.
  • the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application.
  • the corresponding process for the sake of brevity, will not be repeated here.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

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Abstract

本申请实施例提供了一种无线通信方法、终端设备和网络设备,该方法包括:终端设备根据频域相关参数和第一对应关系确定连续OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,第一对应关系是频域相关参数和RB初始数量的对应关系;终端设备根据RB初始数量和频域相关参数确定用于传输SRS的第一连续RB;终端设备根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置。从而可以降低SRS的占用带宽。

Description

无线通信方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域,并且更具体地,涉及一种无线通信方法、终端设备和网络设备。
背景技术
探测参考信号(Sounding Reference Signal,SRS)是新无线(New Radio,NR)系统中的重要参考信号。目前SRS的频域配置由标准38.211表6.4.1.4.3-1中的频域相关参数C SRS和B SRS决定,通过这两个频域相关参数可以确定用于传输SRS的连续资源块(Resource Block,RB)的数量m SRS,b,b=B SRS。基于此,终端设备可以确定m SRS,b个连续RB为传输SRS的频域位置。然而,这种确定传输SRS的频域位置的方法,导致SRS的占用带宽较大的问题。
发明内容
本申请实施例提供了一种无线通信方法、终端设备和网络设备,从而可以降低SRS的占用带宽。
第一方面,提供了一种无线通信方法,包括:终端设备根据频域相关参数和第一对应关系确定连续OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,第一对应关系是频域相关参数和RB初始数量的对应关系;终端设备根据RB初始数量和频域相关参数确定用于传输SRS的第一连续RB;终端设备根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
第二方面,提供了一种无线通信方法,包括:网络设备向终端设备发送SRS的配置信息,配置信息包括:频域相关参数、调整因子和位置信息;其中,频域相关参数用于确定连续OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,RB初始数量和频域相关参数用于确定用于传输SRS的第一连续RB,调整因子用于调整RB初始数量,得到小于RB初始数量的RB实际数量,位置信息用于指示每个OFDM符号上的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
第三方面,提供了一种终端设备,包括:处理单元,用于:根据频域相关参数和第一对应关系确定OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,第一对应关系是频域相关参数和RB初始数量的对应关系;根据RB初始数量和频域相关参数确定用于传输SRS的第一连续RB;根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
第四方面,提供了一种网络设备,包括:通信单元,用于向终端设备发送SRS的配置信息,配置信息包括:频域相关参数、调整因子和位置信息;其中,频域相关参数用于确定连续OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,RB初始数量和频域相关参数用于确定用于传输SRS的第一连续RB,调整因子用于调整RB初始数量,得到小于RB初始数量的RB实际数量,位置信息用于指示每个OFDM符号上的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
第五方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面或其各实现方式中的方法。
第六方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面或其各实现方式中的方法。
第七方面,提供了一种装置,用于实现上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
具体地,该装置包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第八方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,计算机程序指令使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
第十方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第二方面中的任一方面或其各实现方式中的方法。
综上,在本申请中,终端设备可以根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,相对于未采用调整因子和位置信息的方案,本申请提供的技术方案实现了降低SRS的占用带宽的效果。
附图说明
图1为本申请实施例提供的一种通信系统架构的示意性图;
图2为本申请实施例提供的触发信令与SRS传输之间的时隙偏移的示意图;
图3为本申请实施例提供的SRS的一种时域示意图;
图4为本申请实施例提供的SRS的另一种时域示意图;
图5为本申请实施例提供的一种无线通信方法的流程图;
图6为本申请实施例提供的SRS的一种频域分布示意图;
图7为本申请实施例提供的SRS的另一种频域分布示意图;
图8为本申请实施例提供的SRS的再一种频域分布示意图;
图9为本申请实施例提供的SRS的又一种频域分布示意图;
图10为本申请实施例提供的SRS的再一种频域分布示意图;
图11为本申请实施例提供的SRS的又一种频域分布示意图;
图12示出了根据本申请实施例的终端设备1200的示意性框图;
图13示出了根据本申请实施例的网络设备1300的示意性框图;
图14是本申请实施例提供的一种通信设备1400示意性结构图;
图15是本申请实施例的装置的示意性结构图;
图16是本申请实施例提供的一种通信系统1600的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、NR系统、NR系统的演进系统、免授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、免授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、下一代通信系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),以及车辆间(Vehicle to Vehicle,V2V)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
本申请实施例对应用的频谱并不限定。例如,本申请实施例可以应用于授权频谱,也可以应用于免授权频谱。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端 设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请实施例结合终端设备和网络设备描述了各个实施例,其中:终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。终端设备可以是WLAN中的站点(STAION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备以及下一代通信系统,例如,NR网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备或者基站(gNB)或者未来演进的PLMN网络中的网络设备等。
在本申请实施例中,网络设备为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
应理解的是,在本申请中,可以采用多输入多输出(Multiple-Input Multiple-Output,MIMO)技术。
在介绍本申请技术方案之前,下面首先介绍SRS的相关知识:
SRS可用于上行信道状态信息(Channel State information,CSI)获取、下行信道信息获取以及上行波束管理。NR系统以SRS资源集的方式进行SRS的管理和配置。其中,根据不同的用途,网络设备可以为终端设备配置多个SRS资源集,每个SRS资源集包括一个或多个SRS资源,每个SRS资源包含1、2或4个端口。每个SRS资源集的配置信息中包含一个用途指示,可以被配置为“beamManagement”“codebook”“nonCodebook”或“antennaswitching”,分别用于上行波束管理、基于码本的CSI获取,基于非码本的CSI获取以及基于SRS天线切换的下行信道信息获取。
SRS的传输可以分为周期性(Periodic)、半持续(Semi-persistent)、非周期(Aperiodic)几种,详细情况如下:
周期SRS是指周期性传输的SRS,其周期和时隙偏移(slot offset)由无线资源控制(Radio Resource Control,RRC)信令配置,终端设备一旦接收到这两个配置参数,就按照一定的周期发送SRS,直到这两个配置参数失效为止。周期性SRS的空间相关信息(Spatial Relation Info)也由RRC信令配置。该空间相关信息可以指示一个信道状态信息参考信号(Channel state information-Reference Signal,CSI-RS)、同步信号块(Synchronization Signal Block,SSB)或者参考SRS,终端设备根据CSI-RS、SSB或者参考SRS的接收波束来确定SRS的发送波束。
半持续性SRS也是周期性传输的SRS,周期和时隙偏移由RRC信令配置,但其激活和去激活信令是通过媒体接入控制控制单元(Media Access Control Control Element,MAC CE)承载的。终端设备在接收到激活信令后,开始周期性传输SRS,直到接收到去激活信令为止。半持续SRS的空间相关信息通过激活SRS的MAC CE一起承载。
对于周期SRS和半持续SRS,终端设备接收到通过RRC信令配置的周期和时隙偏移后,根据以下公式确定用于传输SRS的时隙:
Figure PCTCN2021085081-appb-000001
其中,
Figure PCTCN2021085081-appb-000002
为每帧包括的时隙个数,T SRS和T offset为通过RRC信令配置的周期和时间偏移,n f
Figure PCTCN2021085081-appb-000003
分别为无线帧编号和时隙编号。
在NR系统中引入了非周期SRS传输,网络设备可以通过上行或者下行控制信息(Downlink control information,DCI)触发终端设备的SRS传输。用于触发非周期SRS传输的触发信令既可以通过UE专属搜索空间中用于调度物理上行共享信道(Physical Uplink Shared Channel,PUSCH)或者物理下行链路共享信道(Physical Downlink Shared Channel)的DCI承载,也可以通过公共搜索空间中的DCI format 2_3来承载。
终端设备接收到触发信令之后,在触发信令所指示的SRS资源集合上进行SRS传输。其中,触发信令与SRS传输之间的时隙偏移(slot offset)由高层信令配置。网络设备可以预先通过高层信令向终端设备指示每个SRS资源集合的配置参数,包括时频资源、序列参数、功率控制参数等。另外,对于触发的SRS资源集合中的每个SRS资源,终端设备还可以通过该资源的空间相关信息确定在该资源上传输SRS所用的发送波束,该空间相关信息可以通过RRC信令配置给每个SRS资源。
如果终端设备在时隙n接收到上述触发信令,那么终端设备将在时隙
Figure PCTCN2021085081-appb-000004
发送该出发信令所指示的SRS集合中的SRS资源,其中,k为针对每个SRS集合配置的触发信令与SRS传输之间的时隙偏移(slot offset),而μ SRS是传输SRS的子载波间距配置,μ PDCCH是携带上述触发信令的PDCCH的子载波间距配置。图2为本申请实施例提供的触发信令与SRS传输之间的时隙偏移的示意图,如图2所示,这里的触发信令与SRS传输之间的时隙偏移(slot offset)为3,其中,图2中的“D”表示下行时隙,“F”表示灵活时隙,“U”表示上行时隙。
SRS时域资源配置:
每个SRS资源可以被配置在一个时隙的任意符号,为了实现SRS的增强传输,终端设备可以重复传输SRS,因此,每个SRS资源可以被配置用于表示该SRS资源占用的连续的OFDM符号的数量
Figure PCTCN2021085081-appb-000005
这些连续的OFDM符号就是用于传输重复SRS的OFDM符号。
其中,SRS的时域开始符号是通过如下公式计算的:
Figure PCTCN2021085081-appb-000006
其中,l 0表示SRS的时域开始符号,
Figure PCTCN2021085081-appb-000007
表示一个时隙包括的OFDM符号数,l offset表示从最后一个符号到SRS的开始符号的一个时间偏移。例如:图3为本申请实施例提供的SRS的一种时域示意图,如图3所示,
Figure PCTCN2021085081-appb-000008
l offset=2,按照如上公式计算得到l 0=11且占用的连续OFDM符号个数为1。图4为本申请实施例提供的SRS的另一种时域示意图,如图4所示,
Figure PCTCN2021085081-appb-000009
Figure PCTCN2021085081-appb-000010
l offset=3,按照如上公式计算得到l 0=10且占用的连续OFDM符号个数为4。
SRS资源频域配置:
SRS的频域配置由38.211-表6.4.1.4.3-1中的频域相关参数C SRS和B SRS决定,通过这两个频域相关参数可以确定用于传输SRS的连续RB的数量m SRS,b,b=B SRS
表6.4.1.4.3-1:SRS带宽配置
Figure PCTCN2021085081-appb-000011
Figure PCTCN2021085081-appb-000012
NR系统支持SRS的跳频,若在满足b hop<B SRS的情况下,则终端设备以跳频的形式发送SRS,其中,b hop为RRC配置参数。在终端设备采用跳频方式发送SRS时,表6.4.1.4.3-1中的m SRS,0为SRS跳频的总带宽,m SRS,b为每次跳频发送的连续RB的数量,即每次跳频发送的物理资源块(Physical Resource Block,PRB)的数量。且终端设备由以下公式确定每次跳频的频域位置:
Figure PCTCN2021085081-appb-000013
n b表示每次跳频的频域位置,N b表示SRS跳频的总带宽被划分的等份数,它由38.211-表6.4.1.4.3-1确定,n RRC为RRC配置参数,其中F b(n SRS)由以下公式确定:
Figure PCTCN2021085081-appb-000014
其中,无论N b参数的取值是多少,
Figure PCTCN2021085081-appb-000015
n SRS表示SRS跳频次数的索引,例如:假设SRS跳频次数为4,那么n SRS的取值可以是0,1,2,3。
对于非周期SRS,SRS跳频次数的索引由公式
Figure PCTCN2021085081-appb-000016
确定。
其中,l'是SRS占用的连续OFDM符号数量的索引,例如:假设SRS占用的连续OFDM符号数量为4,那么l'的取值可以是0,1,2,3。R为重复因子,即R表示每R个OFDM符号进行一次跳频。例如,当R=1时,以1个OFDM符号为单位跳频;当R=2时,以2个OFDM符号为单位跳频。
对于周期和半周期SRS,SRS跳频的次数由以下公式确定:
Figure PCTCN2021085081-appb-000017
其中,
Figure PCTCN2021085081-appb-000018
表示每帧包括的时隙个数,T SRS和T offset为通过RRC信令配置的周期和时间偏移,n f
Figure PCTCN2021085081-appb-000019
分别为无线帧编号和时隙编号,
Figure PCTCN2021085081-appb-000020
l'和R所表示的意义可参考上文,本申请对此不再赘述。
如上所述,终端设备可以确定m SRS,b个连续RB为传输SRS的频域位置。然而,这种确定传输SRS的频域位置的方法,导致SRS的占用带宽较大的问题。
为了解决上述技术问题,本申请考虑将比m SRS,b个连续RB更窄的带宽确定为SRS传输的频域位置,理由是:1、在实际网络中,配置的部分带宽(BandWidth Part,BWP)中的上行或下行某些部分带宽会遭受到其他无线系统如视频回程系统的严重干扰。因此在这类频域部分无法进行数据调度,进而无需在这类频域部分发送SRS。2、在频域高度相关的情况下,信道在整个频带具有较高的相关性。因此只需部分频带上发送SRS,没有传输SRS的带宽可以通过插值的方式重建,在保证信道探测质量的同时也能增强SRS的覆盖能力。
本申请技术方案的有益效果是:可以降低SRS的占用带宽。进一步的,还有如下两个好处:1、当SRS的传输带宽变窄后,相当于提高了SRS的功率密度,从而可以获得额外的功率增益。2、当SRS的传输带宽变窄后,网络设备可以将总带宽中的其余带宽分配给其他用户,从而可以提高带宽的利用率。
下面将对本申请技术方案进行详细阐述:
图5为本申请实施例提供的一种无线通信方法的流程图,如图5所示,该方法包括如下步骤:
S510:终端设备根据频域相关参数和第一对应关系确定连续正交频分复用OFDM符号中每个OFDM符号上用于传输探测参考信号SRS的资源块RB初始数量,第一对应关系是频域相关参数和 RB初始数量的对应关系。
S520:终端设备根据RB初始数量和频域相关参数确定用于传输SRS的第一连续RB。
S530:终端设备根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
可选的,终端设备获取SRS的配置信息,配置信息包括:频域相关参数、调整因子和位置信息。
可选的,配置信息还包括:起始OFDM符号、占用的连续OFDM符号的数量,其中,起始OFDM符号和连续OFDM符号的数量用于确定连续OFDM符号。或者,配置信息还包括:终止OFDM以及占用的连续OFDM符号的数量,其中,终止OFDM符号和连续OFDM符号的数量用于确定连续OFDM符号,总之,本申请对如何确定连续OFDM符号不做限制。
应理解的是,网络设备可以通过RRC信令向终端设备配置一个或者多个SRS资源集,每个SRS资源集包括一个或者多个SRS资源,本申请中的SRS也被称为SRS资源。
应理解的是,本申请中的SRS可以是周期、非周期或者半持续SRS传输中一次传输中的SRS,而一次SRS传输可能占用一个OFDM符号,也可以占用多个连续OFDM符号,即存在重复传输的情况。
可选的,SRS的频域相关参数包括38.211-表6.4.1.4.3-1中的C SRS、B SRS,但不限于此。
可选的,SRS的频域相关参数还包括参数b hop,但不限于此。
应理解的是,SRS的起始OFDM符号也被为称为该SRS在时域上的起始位置。
可选的,SRS占用的连续OFDM符号的数量为一个或者多个。
可选的,当SRS占用的连续OFDM符号数量为多个时,SRS的配置信息还包括:重复因子R,即每R个OFDM符号进行一次跳频。
应理解的是,第一连续RB是理论上用于传输SRS的连续RB,第二连续RB是实际上用于传输SRS的连续RB。
应理解的是,RB初始数量指的是第一连续RB包括的RB的数量,RB实际数量是通过调整因子调整RB初始数量后得到的RB数量,它也是第二连续RB包括的RB的数量。
应理解的是,调整因子用于调整RB初始数量,得到RB实际数量。
关于调整因子的大小可以存在如下几种情况,但不限于此:
可实现方式一,调整因子为大于1的任何数,其可以是整数或者非整数,例如:调整因子为以下任一集合中的任一项:{2,3,4,8}、{2,4,8}、{2,4}、{2}。
可选的,当调整因子大于1时,终端设备可以将
Figure PCTCN2021085081-appb-000021
作为RB实际数量,其中,PF表示调整因子,m SRS,b表示RB初始数量,
Figure PCTCN2021085081-appb-000022
是向下取整符号。
可实现方式二,应理解的是,当终端设备通过调整因子调整RB初始数量时,该调整因子也会导致SRS的序列长度的变化,将这种情况下的SRS的序列长度称为SRS的新序列长度,具体可以通过如下公式计算SRS的新序列长度:
Figure PCTCN2021085081-appb-000023
Figure PCTCN2021085081-appb-000024
其中,
Figure PCTCN2021085081-appb-000025
表示SRS的新序列长度,PF表示调整因子,
Figure PCTCN2021085081-appb-000026
表示未经调整因子调整RB初始数量时SRS的序列长度,即SRS的原始序列长度,
Figure PCTCN2021085081-appb-000027
表示一个RB的子载波个数,K TC表示梳状个数,其至可以是2、4或8等。
在这种情况下,为了使得SRS的新序列长度满足如下任一条件,对PF的大小有所限制:
(1)SRS的新序列长度大于或等于12。
(2)SRS的新序列长度大于或等于当前协议规定的最小值。
可实现方式三,调整因子也可以大于0且小于1,例如:该调整因子是上述
Figure PCTCN2021085081-appb-000028
可选的,调整因子是基于每个SRS资源配置的。
示例性的,假设网络设备为终端设备配置了一个SRS资源集,该SRS资源集包括:SRS资源1和SRS资源2,而网络设备为该SRS资源1和SRS资源2分别配置对应的调整因子,其中,SRS资源1和SRS资源2被配置的调整因子可以相同,也可以不同,本申请对此不做限制。
可选的,调整因子是基于每个SRS集合中的所有SRS资源配置的。
示例性的,假设网络设备为终端设备配置了一个SRS资源集,该SRS资源集包括:SRS资源1和SRS资源2,而网络设备为该SRS资源集配置调整因子,即SRS资源1和SRS资源2被配置的调整因子相同。
可选的,调整因子是由协议决定的,或者,是通过高层信令配置的,如调整因子是通过RRC信令配置的。
可选的,调整因子可以一直保持不变,或者,终端设备可以根据网络设备发送的更新指令更新该调整因子,本申请对此不做限制。
可选的,更新指令为MAC CE信令或者DCI,本申请对此不做限制。
应理解的是,位置信息用于指示每个OFDM符号上的第二连续RB在第一连续RB中的位置。
示例性的,假设第一连续RB被划分为PF部分,即第一连续RB包括PF种位置,这PF种位置在频域上有小到大称为第1部分、第2部分……第PF部分,当位置信息的取值为Y,Y可以是集合{0,1,……PF-1}中的任一项,例如:Y=2,表示第二连续RB是第一连续RB中的第3部分。
可选的,位置信息是基于每个SRS资源配置的。
示例性的,假设网络设备为终端设备配置了一个SRS资源集,该SRS资源集包括:SRS资源1和SRS资源2,而网络设备为该SRS资源1和SRS资源2分别配置对应的位置信息,其中,SRS资源1和SRS资源2被配置的位置信息可以相同,也可以不同,本申请对此不做限制。
可选的,位置信息是基于每个SRS集合中的所有SRS资源配置的。
示例性的,假设网络设备为终端设备配置了一个SRS资源集,该SRS资源集包括:SRS资源1和SRS资源2,而网络设备为该SRS资源集配置位置信息,即SRS资源1和SRS资源2被配置的位置信息相同。
可选的,网络设备对调整因子和位置信息可以进行联合编码或者独立编码,本申请对此不做限制。
可选的,在网络设备向终端设备配置调整因子和位置信息之前,终端设备可以向网络设备上报其能力,该能力指的是终端设备是否支持通过调整因子调整SRS的传输带宽,如果终端设备支持通过调整因子调整SRS的传输带宽,那么网络设备向终端设备配置调整因子和位置信息,否则,网络设备不为终端设备调整因子和位置信息。
综上,在本申请中,终端设备可以根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,相对于未采用调整因子和位置信息的方案,本申请提供的技术方案实现了降低SRS的占用带宽的效果。进一步的,还有如下两个好处:1、当SRS的传输带宽变窄后,相当于提高了SRS的功率密度,从而可以获得额外的功率增益。2、当SRS的传输带宽变窄后,网络设备可以将总带宽中的其余带宽分配给其他用户,从而可以提高带宽的利用率。
应理解的是,如上所述,SRS可以占用一个OFDM符号,或者,占用多个连续OFDM,下面针对这两种情况,通过示例分别说明位置信息的取值范围以及位置信息的意义:
示例1:若占用的连续OFDM符号的数量等于1,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。例如:当PF=2时,Y的取值可以是0或1,当PF=4时,Y的取值可以是0、1、2或3,当PF=8时,Y的取值可以是0、1、2、3、4、5、6或7。该一个OFDM符号上的第一连续RB包括PF种位置,其中,位置信息的一个取值与PF种位置中的一种位置对应,例如:位置信息的各个取值与PF种位置一一对应。若位置信息的取值为Y,则位置信息表示该OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。需要说明的是,该PF种位置可以是第一连续RB被划分的PF个等分,或者,也可以是PF个不等分,本申请对此不做限制。其中,位置信息的各个取值与PF种位置的一一对应关系可以是以下任一种,但不限于此:位置信息的各个取值由小到大与PF种位置在频域上由小到大的顺序一一对应,或者,位置信息的各个取值由小到大与PF种位置在频域上由大到小的顺序一一对应。例如:图6为本申请实施例提供的SRS的一种频域分布示意图,如图6所示,假设PF=4,Y=2,那么在该OFDM符号上,终端设备将第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,第二连续RB为第一连续RB的第Y+1=3等分。
示例2:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。例如:当PF=2时,Y的取值可以是0或1,当PF=4时,Y的取值可以是0、1、2或3,当PF=8时,Y的取值可以是0、1、2、3、4、5、6或7。每个OFDM符号上的第一连续RB包括PF种位置,其中,位置信息的一个取值与PF种位置中的一种位置对应,例如:位置信息的各个取值与每个OFDM符号上的PF种位置一一对应。若位置信息的取值为Y,则 位置信息表示每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。需要说明的是,针对每个OFDM符号,其上的PF种位置可以是第一连续RB被划分的PF个等分,或者,也可以是PF个不等分,本申请对此不做限制。其中,针对每个OFDM符号,位置信息的各个取值与该符号上的PF种位置的一一对应关系可以是以下任一种,但不限于此:位置信息的各个取值由小到大与PF种位置在频域上由小到大的顺序一一对应,或者,位置信息的各个取值由小到大与PF种位置在频域上由大到小的顺序一一对应。例如:图7为本申请实施例提供的SRS的另一种频域分布示意图,如图7所示,假设Ns=4,PF=4,Y=2,其中,Ns表示连续OFDM符号的数量,那么在这4个连续OFDM符号的每个OFDM符号上,终端设备将该OFDM符号上的第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,该OFDM符号上的第二连续RB为第一连续RB的第Y+1=3等分。需要说明的是,为了清楚起见,图7仅示出了4个连续OFDM符号中第4个OFDM符号上的第一连续RB和第二连续RB,实际上,每个OFDM符号上都具有第一连续RB和第二连续RB。
需要说明的是,若终端设备确定b hop<B SRS,则表示开启跳频,若终端设备确定b hop≥B SRS,则表示不开启跳频,下面对此不再赘述。
需要说明的是,若位置信息是一个信息时,表示SRS在连续OFDM符号上的频域位置完全相同,相反,若位置信息包括多个子信息时,表示SRS在连续OFDM符号上的频域位置不完全相同,下面对此不再赘述。
示例3:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置不完全相同,则位置信息包括Ns个第一子信息,Ns表示占用的连续OFDM符号数量,每个第一子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。例如:当PF=2时,每个第一子信息的取值可以是0或1,当PF=4时,每个第一子信息的取值可以是0、1、2或3,当PF=8时,每个第一子信息的取值可以是0、1、2、3、4、5、6或7。其中,Ns个第一子信息与连续OFDM符号一一对应。每个OFDM符号上的第一连续RB包括PF种位置,其中,每个OFDM符号对应的第一子信息的一个取值与PF中位置中的一种位置对应,例如:每个OFDM符号对应的第一子信息的各个取值与该OFDM符号上的PF种位置一一对应。若每个OFDM符号对应的第一子信息的取值为Y,则每个OFDM符号对应的第一子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。需要说明的是,针对每个OFDM符号,其上的PF种位置可以是第一连续RB被划分的PF个等分,或者,也可以是PF个不等分,本申请对此不做限制。其中,针对每个OFDM符号,第一子信息的各个取值与该符号上的PF种位置的一一对应关系可以是以下任一种,但不限于此:第一子信息的各个取值由小到大与PF种位置在频域上由小到大的顺序一一对应,或者,第一子信息的各个取值由小到大与PF种位置在频域上由大到小的顺序一一对应。例如:图8为本申请实施例提供的SRS的再一种频域分布示意图,如图8所示,假设Ns=4,PF=4,Y=2130,其中,“2130”中的每个数字即为一个第一子信息的一个取值,那么在这4个连续OFDM符号的每个OFDM符号上,终端设备将该OFDM符号上的第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,第1个OFDM符号上的第二连续RB为第一连续RB的第2+1=3等分,第2个OFDM符号上的第二连续RB为第一连续RB的第1+1=2等分,第3个OFDM符号上的第二连续RB为第一连续RB的第3+1=4等分,第4个OFDM符号上的第二连续RB为第一连续RB的第0+1=1等分。为了清楚起见,图8仅示出了4个连续OFDM符号中第4个OFDM符号上的第一连续RB和第二连续RB,实际上,每个OFDM符号上都具有第一连续RB和第二连续RB。
示例4:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。例如:当PF=2时,Y的取值可以是0或1,当PF=4时,Y的取值可以是0、1、2或3,当PF=8时,Y的取值可以是0、1、2、3、4、5、6或7。每个OFDM符号上的第一连续RB包括PF种位置,且位置信息的一个取值与PF种位置中的一种位置对应,例如:位置信息的各个取值与每个OFDM符号上的PF种位置一一对应。若位置信息的取值为Y,则位置信息表示每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。需要说明的是,针对每个OFDM符号,其上的PF种位置可以是第一连续RB被划分的PF个等分,或者,也可以是PF个不等分,本申请对此不做限制。其中,针对每个OFDM符号,位置信息的各个取值与该符号上的PF种位置的一一对应关系可以是以下任一种,但不限于此:位置信息的各个取值由小到大与PF种位置在频域上由小到大的顺序一一对应,或者,位置信息的各个取值由小到大与PF种位置在频域上由大到小的顺序一一对应。
需要说明的是,在示例4中,由于终端设备根据频域相关参数确定开启跳频,其可以通过上述公式(2)确定第一跳频位置,即确定在每个OFDM符号上的第一连续RB,其次,终端设备根据位置 信息的取值Y确定每个OFDM符号上,第二连续RB在第一连续RB的位置。例如:图9为本申请实施例提供的SRS的又一种频域分布示意图,如图9所示,假设Ns=4,PF=4,Y=2,并且假设终端设备根据上述公式(2)确定的第一跳频位置为1230,即假设将带宽分为4等分,按照频域有小到大的顺序,4个连续OFDM上第1个OFDM符号上的第一连续RB的索引为1,第2个OFDM符号上的第一连续RB的索引为2,第3个OFDM符号上的第一连续RB的索引为3,第4个OFDM符号上的第一连续RB的索引为0,进一步的,在这4个连续OFDM符号的每个OFDM符号上,终端设备将该OFDM符号上的第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,该OFDM符号上的第二连续RB为第一连续RB的第Y+1=3等分。
示例5:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则位置信息包括Ns/R个第二子信息,Ns表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频,每个第二子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。例如:当PF=2时,每个第二子信息的取值可以是0或1,当PF=4时,每个第二子信息的取值可以是0、1、2或3,当PF=8时,每个第二子信息的取值可以是0、1、2、3、4、5、6或7。其中,Ns/R个第二子信息与连续OFDM符号中Ns/R组OFDM符号一一对应。每个OFDM符号上的第一连续RB包括PF种位置,且每个OFDM符号对应的第二子信息的一个取值与PF种位置中的一种位置对应,例如:每个OFDM符号对应的第二子信息的各个取值与每个OFDM符号上的PF种位置一一对应。若每个OFDM符号对应的第二子信息的取值为Y,则每个OFDM符号对应的第二子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。要说明的是,针对每个OFDM符号,其上的PF种位置可以是第一连续RB被划分的PF个等分,或者,也可以是PF个不等分,本申请对此不做限制。其中,针对每个OFDM符号,第二子信息的各个取值与该符号上的PF种位置的一一对应关系可以是以下任一种,但不限于此:第二子信息的各个取值由小到大与PF种位置在频域上由小到大的顺序一一对应,或者,第二子信息的各个取值由小到大与PF种位置在频域上由大到小的顺序一一对应。例如:图10为本申请实施例提供的SRS的再一种频域分布示意图,如图10所示,假设Ns=4,PF=4,Y=2130,并且假设终端设备根据上述公式(2)确定的第一跳频位置为1230,即假设将带宽分为4等分,按照频域有小到大的顺序,4个连续OFDM上第1个OFDM符号上的第一连续RB的索引为1,第2个OFDM符号上的第一连续RB的索引为2,第3个OFDM符号上的第一连续RB的索引为3,第4个OFDM符号上的第一连续RB的索引为0,进一步的,在这4个连续OFDM符号的每个OFDM符号上,终端设备将该OFDM符号上的第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,第1个OFDM符号上的第二连续RB为第一连续RB的第2+1=3等分,第2个OFDM符号上的第二连续RB为第一连续RB的第1+1=2等分,第3个OFDM符号上的第二连续RB为第一连续RB的第3+1=4等分,第4个OFDM符号上的第二连续RB为第一连续RB的第0+1=1等分。
示例6:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则终端设备根据位置信息、跳频次数的索引和调整因子中的至少一项确定每个OFDM符号上的第二连续RB在第一连续RB中的位置。跳频次数的索引与连续OFDM符号一一对应。
可选的,终端设备可以根据如下公式确定每个OFDM符号上的第二连续RB在第一连续RB中的位置:
Figure PCTCN2021085081-appb-000029
其中,FY b(n SRS)=n SRS,n SRS为跳频次数的索引,跳频次数的索引取值为0~Ns/R-1,N s表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频。例如:跳频次数为4,那么n SRS的取值可以是0、1、2或3,公式(7)中的其它参数可以参考上文,本申请对此不再赘述。
例如:图11为本申请实施例提供的SRS的又一种频域分布示意图,如图11所示,假设Y=1,Ns=4,PF=4,R=1,并且假设终端设备根据上述公式(2)确定的第一跳频位置为0321,即假设将带宽分为4等分,按照频域有小到大的顺序,4个连续OFDM上第1个OFDM符号上的第一连续RB的索引为0,第2个OFDM符号上的第一连续RB的索引为3,第3个OFDM符号上的第一连续RB的索引为2,第4个OFDM符号上的第一连续RB的索引为1,进一步的,在这4个连续OFDM符号的每个OFDM符号上,按照公式(7)计算出,Z (0)=1,Z (1)=2,Z (2)=3,Z (3)=0,即终端设备将该OFDM符号上的第一连续RB划分为PF=4等分,其中,按照频域由小到大的顺序,第1个OFDM 符号上的第二连续RB为第一连续RB的第Z (0)+1=2等分,第2个OFDM符号上的第二连续RB为第一连续RB的第Z (1)+1=3等分,第3个OFDM符号上的第二连续RB为第一连续RB的第Z (2)+1=4等分,第4个OFDM符号上的第二连续RB为第一连续RB的第Z (3)+1=1等分。
需要说明的是,在上述各个示例中,终端设备均使用了调整因子和位置信息,实际上,终端设备也可以对调整因子和位置信息进行限制,例如:调整因子和位置信息是在开启跳频的情况下获取到的,即在开启不跳频的情况下,网络设备不向终端设备配置调整因子和位置信息,或者,终端设备不期望获取到调整因子和位置信息。
或者,调整因子和位置信息在不开启跳频的情况下不起作用,也就是说,即使网络设备为终端设备配置了调整因子和位置信息,但是终端设备在不开启跳频的情况下不使用该调整因子和位置信息。
图12示出了根据本申请实施例的终端设备1200的示意性框图。如图12所示,该终端设备1200包括:处理单元1210,用于:根据频域相关参数和第一对应关系确定OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,第一对应关系是频域相关参数和RB初始数量的对应关系;根据RB初始数量和频域相关参数确定用于传输SRS的第一连续RB;根据调整因子调整RB初始数量,得到小于RB初始数量的RB实际数量,并根据位置信息确定每个OFDM符号上用于传输SRS的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
可选的,位置信息用于指示每个OFDM符号上的第二连续RB在第一连续RB中的位置。
可选的,调整因子大于1。
可选的,调整因子为以下任一集合中的任一项:{2,3,4,8}、{2,4,8}、{2,4}、{2}。
可选的,处理单元1210具体用于:计算调整因子的倒数与RB初始数量的乘积,得到乘积结果。对乘积结果进行向下取整操作,得到RB实际数量。
可选的,若占用的连续OFDM符号的数量等于1,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,每个OFDM符号上的第一连续RB包括PF种位置,且位置信息的一个取值与PF种位置中的一种位置对应。若位置信息的取值为Y,则位置信息表示每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置不完全相同,则位置信息包括Ns个第一子信息,Ns表示占用的连续OFDM符号数量,每个第一子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,Ns个第一子信息与连续OFDM符号一一对应。每个OFDM符号上的第一连续RB包括PF种位置,且每个OFDM符号对应的第一子信息的一个取值与PF种位置中的一种位置对应。若每个OFDM符号对应的第一子信息的取值为Y,则每个OFDM符号对应的第一子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则位置信息包括Ns/R个第二子信息,Ns表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频,每个第二子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,Ns/R个第二子信息与连续OFDM符号中Ns/R组OFDM符号一一对应。每个OFDM符号上的第一连续RB包括PF种位置,且每个OFDM符号对应的第二子信息的一个取值与PF种位置中的一种位置对应。若每个OFDM符号对应的第二子信息的取值为Y,则每个OFDM符号对应的第二子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
可选的,处理单元1210具体用于:若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则根据位置信息、跳频次数的索引和调整因子中的至少一项确定每个OFDM符号上的第二连续RB在第一连续RB中的位置。
可选的,跳频次数的索引与连续OFDM符号一一对应。
可选的,处理单元1210具体用于:计算每个OFDM符号对应的索引与位置信息的取值之和,得到求和结果。对求和结果和调整因子作取余操作,得到每个OFDM符号上的第二连续RB在第一连续RB中的位置。
可选的,跳频次数的索引取值为0~Ns/R-1,Ns表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频。
可选的,调整因子和位置信息是在开启跳频的情况下获取到的。或者,调整因子和位置信息在不开启跳频的情况下不起作用。
可选的,调整因子和位置信息是联合编码或者独立编码的。
可选的,调整因子是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
可选的,位置信息是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
可选的,经过调整因子调整后的SRS的序列长度需要大于或等于预设长度。
可选的,预设长度为12或者协议规定的最小长度。
可选的,调整因子是由协议决定的,或者,是通过高层信令配置的。
可选的,终端设备还包括:通信单元1220,用于获取更新指令,处理单元1210还用于根据更新指令更新调整因子。
可选的,更新指令为MAC CE信令或者DCI。
可选的,通信单元1220还用于获取SRS的配置信息,配置信息包括:频域相关参数、调整因子和位置信息。
可选的,配置信息还包括:起始OFDM符号、占用的连续OFDM符号的数量,其中,起始OFDM符号和连续OFDM符号的数量用于确定连续OFDM符号。
可选的,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备1200可对应于本申请方法实施例中的终端设备,并且终端设备1200中的各个单元的上述和其它操作和/或功能分别为了实现方法实施例中终端设备对应的相应流程,为了简洁,在此不再赘述。
图13示出了根据本申请实施例的网络设备1300的示意性框图。如图13所示,该网络设备1300包括:通信单元1310,用于向终端设备发送SRS的配置信息,配置信息包括:频域相关参数、调整因子和位置信息;其中,频域相关参数用于确定连续OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,RB初始数量和频域相关参数用于确定用于传输SRS的第一连续RB,调整因子用于调整RB初始数量,得到小于RB初始数量的RB实际数量,位置信息用于指示每个OFDM符号上的第二连续RB在第一连续RB中的位置,第二连续RB的RB数量是RB实际数量。
可选的,调整因子大于1。
可选的,调整因子为以下任一集合中的任一项:{2,3,4,8}、{2,4,8}、{2,4}、{2}。
可选的,若占用的连续OFDM符号的数量等于1,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的频域位置完全相同,则位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,每个OFDM符号上的第一连续RB包括PF种位置,且位置信息的一个取值与PF种位置中的一种位置对应。若位置信息的取值为Y,则位置信息表示每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定不开启跳频,且根据位置信息确定SRS在连续OFDM符号上的频域位置不完全相同,则位置信息包括Ns个第一子信息,Ns表示占用的连续OFDM符号数量,每个第一子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,Ns个第一子信息与连续OFDM符号一一对应。每个OFDM符号上的第一连续RB包括 PF种位置,且每个OFDM符号对应的第一子信息的一个取值与PF种位置中的一种位置对应。若每个OFDM符号对应的第一子信息的取值为Y,则每个OFDM符号对应的第一子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则位置信息包括Ns/R个第二子信息,Ns表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频,每个第二子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示调整因子。
可选的,Ns/R个第二子信息与连续OFDM符号中Ns/R组OFDM符号一一对应。每个OFDM符号上的第一连续RB包括PF种位置,且每个OFDM符号对应的第二子信息的一个取值与PF种位置中的一种位置对应。若每个OFDM符号对应的第二子信息的取值为Y,则每个OFDM符号对应的第二子信息表示每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
可选的,若占用的连续OFDM符号的数量大于1,根据频域相关参数确定开启跳频,且根据位置信息确定SRS在连续OFDM符号分别对应的第一连续RB上的不完全相同,则位置信息、跳频次数的索引和调整因子中的至少一项用于确定每个OFDM符号上的第二连续RB在第一连续RB中的位置。
可选的,跳频次数的索引与连续OFDM符号一一对应。
可选的,跳频次数的索引取值为0~Ns/R-1,Ns表示占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频。
可选的,调整因子和位置信息是在开启跳频的情况下获取到的。或者,调整因子和位置信息在不开启跳频的情况下不起作用。
可选的,调整因子和位置信息是联合编码或者独立编码的。
可选的,调整因子是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
可选的,位置信息是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
可选的,经过调整因子调整后的SRS的序列长度需要大于或等于预设长度。
可选的,预设长度为12或者协议规定的最小长度。
可选的,调整因子是由协议决定的,或者,是通过高层信令配置的。
可选的,通信单元1310还用于向终端设备发送更新指令。其中,更新指令用于更新调整因子。
可选的,更新指令为MAC CE信令或者DCI。
可选的,配置信息还包括:起始OFDM符号、占用的连续OFDM符号的数量,其中,起始OFDM符号和连续OFDM符号的数量用于确定连续OFDM符号。
可选的,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。
应理解,根据本申请实施例的网络设备1300可对应于本申请方法实施例中的网络设备,并且网络设备1300中的各个单元的上述和其它操作和/或功能分别为了实现方法实施例中网络设备对应的相应流程,为了简洁,在此不再赘述。
图14是本申请实施例提供的一种通信设备1400示意性结构图。图14所示的通信设备1400包括处理器1410,处理器1410可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图14所示,通信设备1400还可以包括存储器1420。其中,处理器1410可以从存储器1420中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1420可以是独立于处理器1410的一个单独的器件,也可以集成在处理器1410中。
可选地,如图14所示,通信设备1400还可以包括收发器1430,处理器1410可以控制该收发器1430与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器1430可以包括发射机和接收机。收发器1430还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备1400具体可为本申请实施例的网络设备,并且该通信设备1400可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备1400具体可为本申请实施例的终端设备,并且该通信设备1400可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
图15是本申请实施例的装置的示意性结构图。图15所示的装置1500包括处理器1510,处理器 1510可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图15所示,装置1500还可以包括存储器1520。其中,处理器1510可以从存储器1520中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器1520可以是独立于处理器1510的一个单独的器件,也可以集成在处理器1510中。
可选地,该装置1500还可以包括输入接口1530。其中,处理器1510可以控制该输入接口1530与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该装置1500还可以包括输出接口1540。其中,处理器1510可以控制该输出接口1540与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该装置可应用于本申请实施例中的网络设备,并且该装置可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该装置可应用于本申请实施例中的终端设备,并且该装置可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,本申请实施例提到的装置也可以是芯片。例如可以是系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图16是本申请实施例提供的一种通信系统1600的示意性框图。如图16所示,该通信系统1600包括终端设备1610和网络设备1620。
其中,该终端设备1610可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备1620可以用于实现上述方法中由网络设备或者基站实现的相应的功能为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备或者基站,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备或者基站实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁, 在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备或者基站,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备或者基站实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备或者基站,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备或者基站实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。针对这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (64)

  1. 一种无线通信方法,其特征在于,包括:
    终端设备根据频域相关参数和第一对应关系确定连续正交频分复用OFDM符号中每个OFDM符号上用于传输探测参考信号SRS的资源块RB初始数量,所述第一对应关系是所述频域相关参数和所述RB初始数量的对应关系;
    所述终端设备根据所述RB初始数量和所述频域相关参数确定用于传输所述SRS的第一连续RB;
    所述终端设备根据调整因子调整所述RB初始数量,得到小于所述RB初始数量的RB实际数量,并根据位置信息确定所述每个OFDM符号上用于传输所述SRS的第二连续RB在第一连续RB中的位置,所述第二连续RB的RB数量是所述RB实际数量。
  2. 根据权利要求1所述的方法,其特征在于,所述位置信息用于指示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置。
  3. 根据权利要求1或2所述的方法,其特征在于,所述调整因子大于1。
  4. 根据权利要求3所述的方法,其特征在于,所述调整因子为以下任一集合中的任一项:{2,3,4,8}、{2,4,8}、{2,4}、{2}。
  5. 根据权利要求3或4所述的方法,其特征在于,所述终端设备根据调整因子调整所述RB初始数量,得到小于所述RB初始数量的RB实际数量,包括:
    所述终端设备计算所述调整因子的倒数与所述RB初始数量的乘积,得到乘积结果;
    所述终端设备对所述乘积结果进行向下取整操作,得到所述RB实际数量。
  6. 根据权利要求3-5任一项所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量等于1,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  7. 根据权利要求3-5任一项所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定不开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号上的频域位置完全相同,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  8. 根据权利要求3-5任一项所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的频域位置完全相同,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  9. 根据权利要求6-8任一项所述的方法,其特征在于,所述每个OFDM符号上的第一连续RB包括PF种位置,且所述位置信息的一个取值与所述PF种位置中的一种位置对应;
    若所述位置信息的取值为Y,则所述位置信息表示所述每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。
  10. 根据权利要求3-5任一项所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定不开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号上的频域位置不完全相同,则所述位置信息包括Ns个第一子信息,Ns表示所述SRS占用的连续OFDM符号数量,每个第一子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  11. 根据权利要求10所述的方法,其特征在于,所述Ns个第一子信息与所述连续OFDM符号一一对应;所述每个OFDM符号上的第一连续RB包括PF种位置,且所述每个OFDM符号对应的第一子信息的一个取值与所述PF种位置中的一种位置对应;
    若所述每个OFDM符号对应的第一子信息的取值为Y,则所述每个OFDM符号对应的第一子信息表示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
  12. 根据权利要求3-5任一项所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的不完全相同,则所述位置信息包括Ns/R个第二子信息,Ns表示所述SRS占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频,每个第二子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  13. 根据权利要求12所述的方法,其特征在于,所述Ns/R个第二子信息与所述连续OFDM符号中Ns/R组OFDM符号一一对应;
    所述每个OFDM符号上的第一连续RB包括PF种位置,且所述每个OFDM符号对应的第二子信息的一个取值与所述PF种位置中的一种位置对应;
    若所述每个OFDM符号对应的第二子信息的取值为Y,则所述每个OFDM符号对应的第二子信 息表示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
  14. 根据权利要求3-5任一项所述的方法,其特征在于,所述终端设备根据位置信息确定所述每个OFDM符号上用于传输所述SRS的第二连续RB在第一连续RB中的位置,包括:
    若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的不完全相同,则所述终端设备根据所述位置信息、跳频次数的索引和所述调整因子中的至少一项确定所述每个OFDM符号上的第二连续RB在第一连续RB中的位置。
  15. 根据权利要求14所述的方法,其特征在于,所述跳频次数的索引与所述连续OFDM符号一一对应。
  16. 根据权利要求14或15所述的方法,其特征在于,所述终端设备根据所述位置信息、跳频次数的索引和所述调整因子确定所述每个OFDM符号上的第二连续RB在第一连续RB中的位置,包括:
    所述终端设备计算所述每个OFDM符号对应的索引与所述位置信息的取值之和,得到求和结果;
    所述终端设备对所述求和结果和所述调整因子作取余操作,得到所述每个OFDM符号上的第二连续RB在第一连续RB中的位置。
  17. 根据权利要求14-16任一项所述的方法,其特征在于,所述跳频次数的索引取值为0~Ns/R-1,Ns表示所述SRS占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频。
  18. 根据权利要求1-5任一项所述的方法,其特征在于,所述调整因子和所述位置信息是在开启跳频的情况下获取到的;或者,
    所述调整因子和所述位置信息在不开启跳频的情况下不起作用。
  19. 根据权利要求1-18任一项所述的方法,其特征在于,所述调整因子和所述位置信息是联合编码或者独立编码的。
  20. 根据权利要求1-19任一项所述的方法,其特征在于,所述调整因子是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
  21. 根据权利要求1-20任一项所述的方法,其特征在于,所述位置信息是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
  22. 根据权利要求1-21任一项所述的方法,其特征在于,经过所述调整因子调整后的所述SRS的序列长度需要大于或等于预设长度。
  23. 根据权利要求22所述的方法,其特征在于,所述预设长度为12或者协议规定的最小长度。
  24. 根据权利要求1-23任一项所述的方法,其特征在于,所述调整因子是由协议决定的,或者,是通过高层信令配置的。
  25. 根据权利要求1-24任一项所述的方法,其特征在于,还包括:
    所述终端设备获取更新指令;
    所述终端设备根据所述更新指令更新所述调整因子。
  26. 根据权利要求25所述的方法,其特征在于,所述更新指令为媒体接入控制控制单元MAC CE信令或者下行控制信息DCI。
  27. 根据权利要求1-26任一项所述的方法,其特征在于,还包括:
    所述终端设备获取所述SRS的配置信息,所述配置信息包括:所述频域相关参数、所述调整因子和所述位置信息。
  28. 根据权利要求27所述的方法,其特征在于,所述配置信息还包括:起始OFDM符号、占用的连续OFDM符号的数量,其中,所述起始OFDM符号和所述连续OFDM符号的数量用于确定所述连续OFDM符号。
  29. 一种无线通信方法,其特征在于,包括:
    网络设备向终端设备发送SRS的配置信息,所述配置信息包括:频域相关参数、调整因子和位置信息;
    其中,所述频域相关参数用于确定连续OFDM符号中每个OFDM符号上用于传输所述SRS的RB初始数量,所述RB初始数量和所述频域相关参数用于确定用于传输所述SRS的第一连续RB,所述调整因子用于调整所述RB初始数量,得到小于所述RB初始数量的RB实际数量,所述位置信息用于指示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置,所述第二连续RB的RB数量是所述RB实际数量。
  30. 根据权利要求29所述的方法,其特征在于,所述调整因子大于1。
  31. 根据权利要求30所述的方法,其特征在于,所述调整因子为以下任一集合中的任一项:{2,3,4,8}、{2,4,8}、{2,4}、{2}。
  32. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量等于1,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  33. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定不开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号上的频域位置完全相同,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  34. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的频域位置完全相同,则所述位置信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  35. 根据权利要求32-34任一项所述的方法,其特征在于,所述每个OFDM符号上的第一连续RB包括PF种位置,且所述位置信息的一个取值与所述PF种位置中的一种位置对应;
    若所述位置信息的取值为Y,则所述位置信息表示所述每个OFDM符号的第二连续RB在第一连续RB中的位置是Y+1。
  36. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定不开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号上的频域位置不完全相同,则所述位置信息包括Ns个第一子信息,Ns表示所述SRS占用的连续OFDM符号数量,每个第一子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  37. 根据权利要求36所述的方法,其特征在于,所述Ns个第一子信息与所述连续OFDM符号一一对应;所述每个OFDM符号上的第一连续RB包括PF种位置,且所述每个OFDM符号对应的第一子信息的一个取值与所述PF种位置中的一种位置对应;
    若所述每个OFDM符号对应的第一子信息的取值为Y,则所述每个OFDM符号对应的第一子信息表示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
  38. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的不完全相同,则所述位置信息包括Ns/R个第二子信息,Ns表示所述SRS占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频,每个第二子信息的取值为集合{0,1,……PF-1}中的任一项,其中,PF表示所述调整因子。
  39. 根据权利要求38所述的方法,其特征在于,所述Ns/R个第二子信息与所述连续OFDM符号中Ns/R组OFDM符号一一对应;
    所述每个OFDM符号上的第一连续RB包括PF种位置,且所述每个OFDM符号对应的第二子信息的一个取值与所述PF种位置中的一种位置对应;
    若所述每个OFDM符号对应的第二子信息的取值为Y,则所述每个OFDM符号对应的第二子信息表示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置是Y+1。
  40. 根据权利要求30或31所述的方法,其特征在于,若所述SRS占用的连续OFDM符号的数量大于1,根据所述频域相关参数确定开启跳频,且根据所述位置信息确定所述SRS在所述连续OFDM符号分别对应的第一连续RB上的不完全相同,则所述位置信息、跳频次数的索引和所述调整因子中的至少一项用于确定所述每个OFDM符号上的第二连续RB在第一连续RB中的位置。
  41. 根据权利要求40所述的方法,其特征在于,所述跳频次数的索引与所述连续OFDM符号一一对应。
  42. 根据权利要求30或31所述的方法,其特征在于,所述跳频次数的索引取值为0~Ns/R-1,Ns表示所述SRS占用的连续OFDM符号数量,R表示每R个OFDM符号进行一次跳频。
  43. 根据权利要求29-31任一项所述的方法,其特征在于,所述调整因子和所述位置信息是在开启跳频的情况下获取到的;或者,
    所述调整因子和所述位置信息在不开启跳频的情况下不起作用。
  44. 根据权利要求29-43任一项所述的方法,其特征在于,所述调整因子和所述位置信息是联合编码或者独立编码的。
  45. 根据权利要求29-44任一项所述的方法,其特征在于,所述调整因子是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
  46. 根据权利要求29-45任一项所述的方法,其特征在于,所述位置信息是基于每个SRS资源配置的,或者,是基于每个SRS集合中的所有SRS资源配置的。
  47. 根据权利要求29-46任一项所述的方法,其特征在于,经过所述调整因子调整后的所述SRS的序列长度需要大于或等于预设长度。
  48. 根据权利要求47所述的方法,其特征在于,所述预设长度为12或者协议规定的最小长度。
  49. 根据权利要求29-48任一项所述的方法,其特征在于,所述调整因子是由协议决定的,或者,是通过高层信令配置的。
  50. 根据权利要求29-49任一项所述的方法,其特征在于,还包括:
    所述网络设备向所述终端设备发送更新指令;
    其中,所述更新指令用于更新所述调整因子。
  51. 根据权利要求50所述的方法,其特征在于,所述更新指令为MAC CE信令或者DCI。
  52. 根据权利要求29-51任一项所述的方法,其特征在于,所述配置信息还包括:起始OFDM符号、占用的连续OFDM符号的数量,其中,所述起始OFDM符号和所述连续OFDM符号的数量用于确定所述连续OFDM符号。
  53. 一种终端设备,其特征在于,包括:处理单元,用于:
    根据频域相关参数和第一对应关系确定OFDM符号中每个OFDM符号上用于传输SRS的RB初始数量,所述第一对应关系是所述频域相关参数和所述RB初始数量的对应关系;
    根据所述RB初始数量和所述频域相关参数确定用于传输所述SRS的第一连续RB;
    根据调整因子调整所述RB初始数量,得到小于所述RB初始数量的RB实际数量,并根据位置信息确定所述每个OFDM符号上用于传输所述SRS的第二连续RB在第一连续RB中的位置,所述第二连续RB的RB数量是所述RB实际数量。
  54. 一种网络设备,其特征在于,包括:
    通信单元,用于向终端设备发送SRS的配置信息,所述配置信息包括:频域相关参数、调整因子和位置信息;
    其中,所述频域相关参数用于确定连续OFDM符号中每个OFDM符号上用于传输所述SRS的RB初始数量,所述RB初始数量和所述频域相关参数用于确定用于传输所述SRS的第一连续RB,所述调整因子用于调整所述RB初始数量,得到小于所述RB初始数量的RB实际数量,所述位置信息用于指示所述每个OFDM符号上的第二连续RB在第一连续RB中的位置,所述第二连续RB的RB数量是所述RB实际数量。
  55. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至28中任一项所述的方法。
  56. 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求29至52中任一项所述的方法。
  57. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至28中任一项所述的方法。
  58. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求29至52中任一项所述的方法。
  59. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至28中任一项所述的方法。
  60. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求29至52中任一项所述的方法。
  61. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至28中任一项所述的方法。
  62. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求29至52中任一项所述的方法。
  63. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至28中任一项所述的方法。
  64. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求29至52中任一项所述的方法。
PCT/CN2021/085081 2021-04-01 2021-04-01 无线通信方法、终端设备和网络设备 Ceased WO2022205366A1 (zh)

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