WO2019084733A1 - 用于传输信号的方法、网络设备和终端设备 - Google Patents

用于传输信号的方法、网络设备和终端设备 Download PDF

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Publication number
WO2019084733A1
WO2019084733A1 PCT/CN2017/108419 CN2017108419W WO2019084733A1 WO 2019084733 A1 WO2019084733 A1 WO 2019084733A1 CN 2017108419 W CN2017108419 W CN 2017108419W WO 2019084733 A1 WO2019084733 A1 WO 2019084733A1
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WIPO (PCT)
Prior art keywords
reference signal
srs
srs resource
downlink reference
terminal device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/108419
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English (en)
French (fr)
Inventor
史志华
陈文洪
张治�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority to EP21184671.2A priority Critical patent/EP3930245B1/en
Priority to CA3066933A priority patent/CA3066933A1/en
Priority to CN202010072074.1A priority patent/CN111278064B/zh
Priority to SG11201911810PA priority patent/SG11201911810PA/en
Priority to PCT/CN2017/108419 priority patent/WO2019084733A1/zh
Priority to AU2017437864A priority patent/AU2017437864A1/en
Priority to RU2019144405A priority patent/RU2748317C1/ru
Priority to KR1020197038353A priority patent/KR102433557B1/ko
Priority to EP17930910.9A priority patent/EP3637850B1/en
Priority to BR112019027298-4A priority patent/BR112019027298A2/pt
Priority to CN201780092087.1A priority patent/CN110786044B/zh
Priority to ES17930910T priority patent/ES2894501T3/es
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to DK17930910.9T priority patent/DK3637850T3/da
Priority to JP2019572162A priority patent/JP7153035B2/ja
Priority to TW107138257A priority patent/TWI759558B/zh
Publication of WO2019084733A1 publication Critical patent/WO2019084733A1/zh
Priority to IL271360A priority patent/IL271360A/en
Priority to ZA2019/08248A priority patent/ZA201908248B/en
Priority to PH12019502845A priority patent/PH12019502845A1/en
Priority to US16/724,140 priority patent/US10944598B2/en
Anticipated expiration legal-status Critical
Priority to US17/161,629 priority patent/US11671223B2/en
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0226—Channel estimation using sounding signals sounding signals per se
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols

Definitions

  • the embodiments of the present application relate to the field of communications, and, more particularly, to a method, a network device, and a terminal device for transmitting signals.
  • the non-codebook-based uplink ( Uplink) refers to the terminal estimating the downlink channel information according to the downlink reference signal of the network, and then calculating the sounding reference signal (SRS) precoding information according to the downlink channel information. Then, the terminal may transmit the uplink SRS according to the calculated uplink pre-coded information.
  • SRS sounding reference signal
  • the terminal may transmit the uplink SRS according to the calculated uplink pre-coded information.
  • there are various downlink reference signals and the terminal does not know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby reducing the performance of the system transmission.
  • the embodiments of the present application provide a method, a network device, and a terminal device for transmitting signals, which are beneficial to improving performance of system transmission.
  • a method for transmitting a signal comprising: the network device transmitting, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal.
  • the terminal device can subsequently know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby improving the performance of the system transmission.
  • the network device sends, to the terminal device, a mapping relationship between the at least one SRS resource and the downlink reference signal, where the network device sends, to the terminal device, each SRS resource of the at least one SRS resource.
  • the configuration information where the configuration information of each SRS resource includes an indication field for indicating a downlink reference signal corresponding to each SRS resource.
  • the network device sends, to the terminal device, a mapping relationship between the at least one SRS resource group and the downlink reference signal, where the network device sends the Configuration information of each SRS resource group in one SRS resource group, the configuration information of each SRS resource group respectively including at least one indication domain corresponding to the SRS resource in each SRS resource group.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal, where the network device controls the RRC signal by using the wireless resource.
  • the media access control MAC signaling sends a mapping combination to the terminal device, where the mapping combination includes a mapping relationship between the at least one SRS resource and a downlink reference signal and/or a mapping relationship between the at least one SRS resource group and a downlink reference signal.
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each SRS resource and downlink reference in the at least one SRS resource.
  • the mapping relationship of the signal; or the mapping combination further includes at least one status identifier, each of the at least one status identifier is used to identify each SRS resource group and the downlink reference in the at least one SRS resource group The mapping relationship of signals.
  • the method further includes: the network device sending the first indication information to the terminal device, where the first indication information is used to trigger the terminal device to send the first mapping having the mapping relationship to the network device. SRS.
  • the first indication information is used to indicate the first SRS and/or the downlink reference signal corresponding to the first SRS.
  • the method further includes: sending, by the network device, the second indication information to the terminal device, where the second indication information is used to indicate the first status identifier in the at least one status identifier, to trigger the
  • the terminal device sends an SRS with the mapping relationship of the first state identifier identifier to the network device.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal, where the network device sends the a first timing relationship between the at least one SRS resource and the transmission resource of the downlink reference signal, where the first timing relationship is used to indicate a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or the network device is to the terminal device Transmitting a second timing relationship between the at least one SRS resource group and the downlink reference signal transmission resource, where the second timing relationship is used to indicate a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal, where the network device sends the a third timing relationship between the triggering signal of the SRS and the downlink reference signal is sent on the at least one SRS resource, where the third timing relationship is used to indicate a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or the network device Transmitting, to the terminal device, a fourth timing relationship between the trigger signal for transmitting the SRS on the at least one SRS resource group and the downlink reference signal, where the fourth timing relationship is used to indicate mapping of the at least one SRS resource group and the downlink reference signal relationship.
  • the downlink reference signal includes a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
  • the SRS includes at least one of aperiodic SRS, periodic SRS, and semi-static SRS.
  • a second aspect provides a method for transmitting a signal, the method comprising: receiving, by a terminal device, a mapping relationship between at least one sounding reference signal SRS resource and/or at least one SRS resource group and a downlink reference signal sent by the network device.
  • the terminal device receives a mapping relationship between the at least one sounding reference signal SRS resource and the downlink reference signal sent by the network device, where the terminal device receives the at least one SRS resource sent by the network device.
  • the configuration information of the SRS resources, where the configuration information of each SRS resource includes an indication field for indicating a downlink reference signal corresponding to each SRS resource.
  • the terminal device receives a mapping relationship between the at least one SRS resource group and the downlink reference signal that is sent by the network device, where the terminal device receives, by the terminal device, each SRS in the at least one SRS resource group sent by the network device.
  • the configuration information of the resource group, the configuration information of each SRS resource group respectively includes at least one indication domain for indicating an SRS resource in each SRS resource group.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the terminal device receives the mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal sent by the network device, where the terminal device receives the network device and passes the network device.
  • a mapping combination of radio resource control RRC signaling or media access control MAC signaling the mapping combination including the at least one SRS resource A mapping relationship with the downlink reference signal and/or a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each SRS resource and downlink reference in the at least one SRS resource.
  • the mapping relationship of the signal; or the mapping combination further includes at least one status identifier, each of the at least one status identifier is used to identify each SRS resource group and the downlink reference in the at least one SRS resource group The mapping relationship of signals.
  • the method further includes: receiving, by the terminal device, the first indication information that is sent by the network device, where the first indication information is used to trigger the terminal device to send the first mapping information to the network device An SRS, the terminal device determines a downlink reference signal corresponding to the first SRS according to the first indication information, and the terminal device calculates the first SRS according to the downlink reference signal corresponding to the first SRS. Precoding information; the terminal device transmits the first SRS to the network device according to the precoding information.
  • the first indication information is used to indicate the first SRS and/or the downlink reference signal corresponding to the first SRS.
  • the method further includes: receiving, by the terminal device, second indication information that is sent by the network device, where the second indication information is used to indicate a first status identifier in the at least one status identifier;
  • the terminal device determines, according to the first state identifier and the mapping table, a first SRS corresponding to the first state identifier and a downlink reference signal corresponding to the first SRS, where the terminal device is configured according to the first SRS
  • the downlink reference signal is used to calculate precoding information of the first SRS; and the terminal device transmits the first SRS to the network device according to the precoding information.
  • the terminal device receives the mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal sent by the network device, where the terminal device receives the network device to send a first timing relationship between the at least one SRS resource and a transmission resource of the downlink reference signal, where the first timing relationship is used to indicate a mapping relationship between the at least one SRS resource and a downlink reference signal; and/or the terminal device receives the And a second timing relationship between the at least one SRS resource group and the downlink reference signal sent by the network device, where the second timing relationship is used to indicate a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the terminal device receives at least one probe sent by the network device.
  • the mapping between the reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal includes: receiving, by the terminal device, between the trigger signal sent by the network device and sending the SRS on the at least one SRS resource, and the downlink reference signal a third timing relationship, where the third timing relationship is used to indicate a mapping relationship between the at least one SRS resource and a downlink reference signal; and/or the terminal device receives, by the network device, the SRS sent on the at least one SRS resource group.
  • a fourth timing relationship between the trigger signal and the downlink reference signal where the fourth timing relationship is used to indicate a mapping relationship between the at least one SRS resource and the downlink reference signal.
  • the downlink reference signal includes a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
  • the SRS includes at least one of aperiodic SRS, periodic SRS, and semi-static SRS.
  • a network device for performing the method of any of the first aspect or the first aspect of the first aspect.
  • the network device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a terminal device for performing the method in any of the above-mentioned second aspect or any possible implementation of the second aspect.
  • the terminal device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a network device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • a computer storage medium for storing the method in any of the above possible implementations of the first aspect or the first aspect, or any possible implementation of the second or second aspect
  • Computer software instructions for use in the method of the present invention which comprise a program designed to perform the above aspects.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the first aspect or any of the alternative implementations of the first aspect The method, or the method of any of the alternative implementations of the second or second aspect above.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 shows a schematic block diagram of a method for transmitting signals according to an embodiment of the present application.
  • FIG. 3 shows another schematic block diagram of a method for transmitting a signal according to an embodiment of the present application.
  • FIG. 4 shows a schematic block diagram of a network device of an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device of an embodiment of the present application.
  • FIG. 6 shows another schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 7 is another schematic block diagram of a terminal device according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolved
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology.
  • SCMA sparse code multiple access
  • LDS Density Signature
  • OFDM orthogonal orthogonal frequency division
  • OFDM Orthogonal Frequency Division
  • FBMC Filter Bank Multi-Carrier
  • GFDM Generalized Frequency Division Multiplexing
  • Filtered-OFDM, F-OFDM Filtered-OFDM, F-OFDM
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system. And may be an evolved base station (eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be The embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • CRAN cloud radio access network
  • the embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a terminal device 10 and a network device 20.
  • the network device 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.
  • codebook-based UL MIMO the UE sends a multi-port SRS, and the network selects a specified codebook notification from a codebook set according to the SRS measurement result.
  • the UE performs precoding of the data according to the received designated codebook and performs transmission.
  • One is based on non-codebook-based UL MIMO: this scheme is for the case where channel disparity is established.
  • the UE according to the network downlink signal, The downlink channel information is estimated, and the uplink precoding matrix is calculated according to the downlink channel information.
  • the UE can support 4-port uplink transmission, and the UE may calculate one precoding matrix (4 dimensions) or 4 1D precoding vectors. Then, the UE (sequentially or simultaneously) transmits four single-port SRSs, each SRS is precoded using the above precoding matrix or precoding vector, and the network transmits one or more according to the measurement result of the SRS. SRS.
  • the UE performs PUSCH transmission according to the indicated SRS. For example, if the network indicates the first SRS, the UE transmits a PUSCH of one layer, and its precoding use corresponds to the first SRS.
  • CSI-RS Channel State Information-Reference Signals
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • mapping and “association” are also used interchangeably herein, for example, “mapping relationship” in this context is actually an “association relationship.”
  • FIG. 2 shows a schematic block diagram of a method 100 for transmitting signals in an embodiment of the present application. As shown in FIG. 2, the method 100 includes some or all of the following:
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal.
  • the network device may configure a mapping relationship between the SRS and the downlink reference signal for the terminal device.
  • the SRS may be a periodic SRS, a non-periodic SRS, or a semi-persistent SRS.
  • the downlink reference signal may refer to a CSI-RS, or may be a Synchronization Signal Block (SSB) or the like.
  • SSB Synchronization Signal Block
  • the SRS signals transmitted on different SRS resources are different signals. In other words, the difference of the SRS signals can be characterized by the SRS resources transmitting the SRS.
  • the network device may pre-configure the at least one SRS resource or the at least one SRS resource group, and the network device may further associate the SRS resource in the at least one SRS resource with the downlink reference signal.
  • the network device may be in the at least one SRS resource.
  • Each SRS resource is associated with a downstream reference signal.
  • the network The device configures SRS resource 0, SRS resource 1 and SRS resource 2 for 3 SRS resources for the terminal device, and the network device can further map the SRS resource 0 to the downlink reference signal 1 and the SRS resource 1 to the downlink reference signal 2
  • the SRS resource 2 is mapped onto the downlink reference signal 2, and the network device can notify the terminal device of the mapping relationship.
  • the network device may also group the pre-configured SRS resources, for example, SRS resource 0 as group 1, SRS resource 1 and SRS resource 2 as group 2, and the network device may further map group 1 to downlink reference signal 1 Group 2 is mapped to the downlink reference signal 2, and the network device can notify the terminal device of such a mapping relationship. After knowing the mapping relationship, the terminal device may determine, according to the mapping relationship, which downlink reference signal is used to calculate precoding information of the SRS to be transmitted.
  • the method for transmitting a signal in the embodiment of the present application by notifying the terminal device of the mapping relationship between the SRS signal and the downlink reference signal, enables the terminal device to subsequently know which downlink reference signal is used to calculate the precoding of the SRS to be transmitted. Information, which helps to improve the performance of the system transmission.
  • the network device sends a mapping relationship between the at least one SRS resource and the downlink reference signal to the terminal device, where the network device sends, to the terminal device, each SRS in the at least one SRS resource.
  • the configuration information of the resources, where the configuration information of each SRS resource includes an indication field for indicating a downlink reference signal corresponding to each SRS resource.
  • the network device configures the sending parameter of the uplink reference signal for the terminal device, that is, the network device sends the uplink reference signal to the terminal device.
  • the SRS configuration example may include the bandwidth occupied by the SRS, the SRS transmission period (periodic SRS), and the initial frequency domain offset of the SRS transmission. These parameters define the SRS transmission required. Radio resources (frequency domain resources, time domain resources, and code domain resources, etc.).
  • the network device may separately configure each SRS resource to the terminal device, and the network device may utilize configuration information of the SRS resource, that is, a specific indication domain indication and a configuration information in each SRS resource configuration information.
  • the downlink reference signal corresponding to the SRS resource In other words, the network device may configure a downlink reference signal corresponding to the SRS resource while configuring the radio resource of a certain SRS to the terminal device.
  • the network device sends, to the terminal device, a mapping relationship between the at least one SRS resource group and the downlink reference signal, where the network device sends the downlink device to the terminal device And sending configuration information of each SRS resource group in the at least one SRS resource group, where the configuration information of each SRS resource group respectively includes at least one indication domain corresponding to the SRS resource in each SRS resource group.
  • the network device may also group the pre-assigned multiple SRS resources, and configure each group of SRS resources to the terminal device respectively, that is, each group of SRS resources has one configuration information, and the network device may utilize each A configuration field of a set of SRS resources, that is, an indication field that is used to indicate a downlink reference signal corresponding to the SRS resource in the set of SRS resources, and the indication field may be one. It can also be multiple.
  • the terminal device may consider that all SRS resources in a certain group of SRS resources correspond to the downlink reference signal indicated by the indication domain, and if the indication domain is multiple, the terminal device may consider that the terminal device may A part of the SRS resources in the group SRS resource corresponds to a downlink reference signal indicated by a certain indication field in the multiple indication domains.
  • mapping relationship between the SRS resource and the downlink reference signal in a set of SRS resources is not limited, and all the SRS resources in the group of SRS resources may be associated with one downlink reference signal, or may be A part of the SRS resources in the group of SRS resources are associated with one downlink reference signal, and a part of the SRS resources in the group of SRS resources may not be associated with the downlink reference signal.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the indication field may be an identifier of the downlink reference signal, for example, may be a resource identifier of the downlink reference signal. Specifically, it may be a CSI-RS resource index or an SSB resource index or the like.
  • the indication field may also be directly configured information of a downlink reference signal, for example, may be a radio resource (frequency domain resource, time domain resource, code domain resource, etc.) configured by the network device for the downlink reference signal.
  • the terminal device may consider the SRS resource or the group of SRS resources as soon as the terminal device receives configuration information of a certain SRS resource or the indication field in the configuration information of the group of SRS resources indicates configuration information of a certain downlink reference signal. Associated with the downlink reference signal.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal, where the network device is controlled by the wireless resource.
  • the RRC signaling or the medium access control (MAC) signaling sends a mapping combination to the terminal device, where the mapping combination includes a mapping relationship between the at least one SRS resource and a downlink reference signal, and/or the at least one SRS resource group and The mapping relationship of the downlink reference signals.
  • the network device may not carry the downlink reference signal associated with the SRS resource or the configuration information of the SRS resource, that is, the network device does not simultaneously configure the mapping relationship between the SRS resource and the SRS resource and the downlink reference signal, and the network device
  • the mapping relationship between the SRS resource and the downlink reference signal may be configured to the terminal device by using separate signaling.
  • the network device may send a mapping combination to the terminal device by using separate signaling, where the mapping combination may include a mapping relationship between multiple SRS resources and downlink reference signals and/or a mapping relationship between multiple SRS resource groups and downlink reference signals.
  • the mapping combination one downlink reference signal may be mapped to the SRS resource in groups, or one downlink reference signal may be separately mapped to the SRS resource.
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each SRS resource in the at least one SRS resource. a mapping relationship of the downlink reference signals; or the mapping combination further includes at least one status identifier, each of the at least one status identifiers being used to identify each SRS resource group in the at least one SRS resource group The mapping relationship of the downlink reference signals.
  • the mapping combination can be a mapping table, as shown in Table 1.
  • the network device can be configured with a status identifier for each pair of mappings. After the terminal device obtains a certain status identifier, the terminal device can obtain the mapping relationship corresponding to the status identifier. For example, if the network device indicates the status identifier 1 to the terminal device, the terminal device may obtain the mapping relationship between the SRS resource identifier 1 or the SRS resource group table 1 and the downlink reference signal identifier 1 from the table 1, and further the terminal device may According to the SRS resource to be transmitted indicated by the network device, the downlink reference signal associated with it can be known.
  • mapping relationship between the status identifiers and the downlink reference signals may be a mapping relationship between the SRS resources and the downlink reference signals of a certain group of SRS resources, as shown in Table 1.
  • the state identifier 3 in the embodiment of the present application is not limited thereto.
  • the network device can send the terminal device to the terminal device through high layer signaling, such as RRC signaling or MAC signaling.
  • the network device can be sent to the terminal device through a system message, a broadcast message, or the like, and the embodiment of the present application is not limited thereto.
  • the method further includes: the network device sending the first indication information to the terminal device, where the first indication information is used to trigger the terminal device to send the mapping relationship to the network device.
  • First SRS First SRS.
  • the network device can trigger the terminal device to send the SRS on a certain SRS resource or send the SRS on a certain group of SRS resources. After the terminal device knows which SRS resource or which group of SRS resources, the terminal device can The downlink reference signal corresponding to the foregoing mapping relationship is obtained, and then the precoding information of the SRS to be transmitted is calculated, and the calculated precoding information is used to send the SRS to the network device.
  • the network device may trigger a certain SRS resource or SRS resource group transmission by using RRC and/or MAC signaling and/or Downlink Control Information (DCI) signaling.
  • the indication information may directly indicate the SRS resource to be transmitted, or may indirectly indicate some information related to the SRS resource to be transmitted, such as a downlink reference signal associated with the SRS resource to be transmitted.
  • the method further includes: the network device sending the second indication information to the terminal device, where the second indication information is used to indicate the first status identifier in the at least one status identifier, The terminal device is triggered to send an SRS with the mapping relationship of the first state identifier to the network device.
  • the network device may directly indicate a certain status identifier to the terminal device, and the terminal device may obtain the SRS in the mapping relationship of the status identifier.
  • the resource and the downlink reference signal, and the terminal device can know the SRS resource to be transmitted.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal, including: the network device to the terminal device Transmitting a first timing relationship between the at least one SRS resource and a transmission resource of the downlink reference signal, where the first timing relationship is used to indicate a mapping relationship between the at least one SRS resource and a downlink reference signal; and/or the network device sends the The terminal device sends a second timing relationship between the at least one SRS resource group and the transmission resource of the downlink reference signal, where the second timing relationship is used to indicate a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the network device sends, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal
  • the method includes: the network device sends, to the terminal device, a third timing relationship between a trigger signal for transmitting an SRS on the at least one SRS resource and a downlink reference signal, where the third timing relationship is used to indicate the at least one SRS resource and the downlink reference a mapping relationship between the signals; and/or the network device transmitting, to the terminal device, a fourth timing relationship between the trigger signal for transmitting the SRS on the at least one SRS resource group and the downlink reference signal, where the fourth timing relationship is used to indicate the A mapping relationship between at least one SRS resource group and a downlink reference signal.
  • the network device may not directly configure the mapping relationship between the SRS resource and the downlink reference signal, and the network device may configure the SRS resource by configuring a timing relationship between the SRS resource and the downlink reference signal to the terminal device.
  • the mapping relationship with the downlink reference signal For example, the network device can be agreed with the terminal device, and the previous downlink reference signal of each SRS resource in the time domain can be considered as being associated with it. After the terminal device obtains the timing relationship between the SRS resource and the downlink reference signal, the terminal device can determine the downlink reference signal associated with the certain SRS resource according to the rule agreed upon by the network device. Similarly, the timing relationship between the SRS resource group and the downlink reference signal can also be used to characterize the mapping relationship between the SRS resource group and the downlink reference signal, which is not described here.
  • the network device can also configure the mapping relationship between the SRS resource and the downlink reference signal by configuring the timing relationship between the trigger signal of the SRS and the downlink reference signal to the terminal device.
  • the network device can be agreed with the terminal device, and the trigger signal of each SRS can be considered as being associated with the previous downlink reference signal in the time domain.
  • the terminal device can determine the downlink reference signal associated with a certain SRS resource according to the rule agreed upon by the network device.
  • the timing relationship between the trigger signal of the SRS resource group and the downlink reference signal can also represent the mapping relationship between the SRS resource group and the downlink reference signal, which is not described here.
  • FIG. 3 shows a schematic block diagram of a method 200 for transmitting signals in an embodiment of the present application. As shown in FIG. 3, the method 200 includes the following parts or all of the contents:
  • the terminal device receives a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal sent by the network device.
  • the method for transmitting a signal in the embodiment of the present application by notifying the terminal device of the mapping relationship between the SRS signal and the downlink reference signal, enables the terminal device to subsequently know which downlink reference signal is used to calculate the precoding of the SRS to be transmitted. Information, which helps to improve the performance of the system transmission.
  • the terminal device receives a mapping relationship between the at least one sounding reference signal SRS resource and the downlink reference signal that is sent by the network device, where the terminal device receives the The configuration information of each SRS resource in the at least one SRS resource, where the configuration information of each SRS resource includes an indication field for indicating a downlink reference signal corresponding to each SRS resource.
  • the terminal device receives a mapping relationship between the at least one SRS resource group and the downlink reference signal that is sent by the network device, where the terminal device receives the at least one SRS resource that is sent by the network device.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the terminal device receives the mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal that are sent by the network device, where the terminal device receives: And the mapping combination of the at least one SRS resource and the downlink reference signal and/or the at least one SRS is performed by the network device by using a radio resource to control a RRC signaling or a medium access control MAC signaling.
  • the mapping relationship between the resource group and the downlink reference signal is performed by using a radio resource to control a RRC signaling or a medium access control MAC signaling.
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each of the at least one SRS resource in a one-to-one correspondence a mapping relationship between the SRS resource and the downlink reference signal; or the mapping combination further includes at least one status identifier, where each of the at least one status identifier is used to identify the at least one SRS resource group in a one-to-one correspondence The mapping relationship between each SRS resource group and the downlink reference signal.
  • the method further includes: the terminal device receiving the first indication information sent by the network device, where the first indication information is used to trigger the terminal device to the network
  • the device sends a first SRS with the mapping relationship; the terminal device determines a downlink reference signal corresponding to the first SRS according to the first indication information and the mapping relationship; the terminal device according to the The downlink reference signal corresponding to the first SRS is used to calculate precoding information of the first SRS; and the terminal device transmits the first SRS to the network device according to the precoding information.
  • the first indication information is used to indicate the first SRS and/or a downlink reference signal corresponding to the first SRS.
  • the method further includes: receiving, by the terminal device, second indication information that is sent by the network device, where the second indication information is used to indicate that the at least one status identifier is Determining, by the first state identifier, the first SRS corresponding to the first state identifier and a downlink reference signal corresponding to the first SRS according to the first state identifier and the mapping table; The terminal device calculates precoding information of the first SRS according to the downlink reference signal corresponding to the first SRS, and the terminal device transmits the first SRS to the network device according to the precoding information. .
  • the terminal device receives the mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal that are sent by the network device, where the terminal device receives: a first timing relationship between the at least one SRS resource and a downlink reference signal sent by the network device, where the first timing relationship is used to indicate a mapping relationship between the at least one SRS resource and a downlink reference signal; And/or the terminal device receives a second timing relationship between the at least one SRS resource group and the transmission resource of the downlink reference signal sent by the network device, where the second timing relationship is used to indicate the at least one SRS The mapping relationship between the resource group and the downlink reference signal.
  • the terminal device receives the mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal that are sent by the network device, where the terminal device receives: a third timing relationship between the trigger signal sent by the SRS and the downlink reference signal sent by the network device on the at least one SRS resource, where the third timing relationship is used to indicate the at least one SRS resource and the downlink reference signal And a fourth timing relationship between the trigger signal and the downlink reference signal sent by the network device to send the SRS on the at least one SRS resource group, the fourth timing relationship And a mapping relationship between the at least one SRS resource and a downlink reference signal.
  • the downlink reference signal includes a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
  • the SRS includes at least one of an aperiodic SRS, a periodic SRS, and a semi-static SRS.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 4 shows a schematic block diagram of a network device 300 of an embodiment of the present application.
  • the network device 300 includes:
  • the sending unit 310 is configured to send, to the terminal device, a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal.
  • the network device in the embodiment of the present application can notify the terminal device of the mapping relationship between the SRS signal and the downlink reference signal, so that the terminal device can subsequently know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby Conducive to improve the performance of system transmission.
  • the sending unit is specifically configured to: send, to the terminal device, configuration information of each SRS resource in the at least one SRS resource, where configuration information of each SRS resource is included in the configuration information An indication field indicating a downlink reference signal corresponding to the each SRS resource.
  • the sending unit is specifically configured to: send, by the network device, configuration information of each SRS resource group in the at least one SRS resource group to the terminal device, where configuration information of each SRS resource group Each includes at least one indication field for indicating an SRS resource in each of the SRS resource groups.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the sending unit is specifically configured to: send a mapping combination to the terminal device by using a radio resource control RRC signaling or a medium access control MAC signaling, where the mapping combination includes the at least one SRS resource A mapping relationship with the downlink reference signal and/or a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • RRC radio resource control
  • MAC medium access control
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each SRS resource in the at least one SRS resource. a mapping relationship of the downlink reference signals; or the mapping combination further includes at least one status identifier, each of the at least one status identifiers being used for one-to-one correspondence And mapping the mapping relationship between each SRS resource group and the downlink reference signal in the at least one SRS resource group.
  • the sending unit is further configured to: send the first indication information to the terminal device, where the first indication information is used to trigger the terminal device to send the first mapping information to the network device.
  • An SRS An SRS.
  • the first indication information is used to indicate the first SRS and/or a downlink reference signal corresponding to the first SRS.
  • the sending unit is further configured to: send, by the network device, second indication information to the terminal device, where the second indication information is used to indicate the first status identifier in the at least one status identifier. And triggering, by the terminal device, the SRS that sends the mapping relationship with the first state identifier identifier to the network device.
  • the sending unit is specifically configured to: send, to the terminal device, a first timing relationship between the at least one SRS resource and a sending resource of a downlink reference signal, where the first timing relationship is used for And indicating a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or transmitting, to the terminal device, a second timing relationship between the at least one SRS resource group and a transmission resource of the downlink reference signal, where the second timing relationship is used And indicating a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the sending unit is specifically configured to: send, to the terminal device, a third timing relationship between a trigger signal for transmitting an SRS on the at least one SRS resource and a downlink reference signal, where the third The timing relationship is used to indicate a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or to send, to the terminal device, a fourth timing relationship between the trigger signal for transmitting the SRS on the at least one SRS resource group and the downlink reference signal The fourth timing relationship is used to indicate a mapping relationship between the at least one SRS resource group and a downlink reference signal.
  • the downlink reference signal includes a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
  • the SRS includes at least one of an aperiodic SRS, a periodic SRS, and a semi-static SRS.
  • the network device 300 may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 300 respectively implement the network in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • FIG. 5 shows a schematic block diagram of a terminal device 400 of an embodiment of the present application.
  • the terminal device 400 includes:
  • a receiving unit configured to receive a mapping relationship between the at least one sounding reference signal SRS resource and/or the at least one SRS resource group and the downlink reference signal sent by the network device.
  • the terminal device in the embodiment of the present application receives the mapping relationship between the SRS signal and the downlink reference signal that is notified by the network device, so that the terminal device can subsequently know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby Conducive to improve the performance of system transmission.
  • the receiving unit is specifically configured to: receive configuration information of each SRS resource in the at least one SRS resource that is sent by the network device, where the configuration information of each SRS resource is included in the configuration information. And indicating an indication field of a downlink reference signal corresponding to each SRS resource.
  • the receiving unit is specifically configured to: receive configuration information of each SRS resource group in the at least one SRS resource group sent by the network device, where configuration information of each SRS resource group includes And indicating at least one indication domain corresponding to the SRS resource in each SRS resource group.
  • the indication field is specifically used to indicate an identifier of a downlink reference signal or configuration information used to indicate a downlink reference signal.
  • the receiving unit is specifically configured to: receive a mapping combination that is sent by the network device by using a radio resource control RRC signaling or a medium access control MAC signaling, where the mapping combination includes the at least one SRS A mapping relationship between the resource and the downlink reference signal and/or a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • RRC radio resource control
  • MAC medium access control
  • the mapping combination further includes at least one status identifier, where each status identifier of the at least one status identifier is used to identify each SRS resource in the at least one SRS resource. a mapping relationship of the downlink reference signals; or the mapping combination further includes at least one status identifier, each of the at least one status identifiers being used to identify each SRS resource group in the at least one SRS resource group The mapping relationship of the downlink reference signals.
  • the receiving unit is further configured to: receive the first indication information that is sent by the network device, where the first indication information is used to trigger the terminal device to send the mapping relationship to the network device.
  • a first SRS a first SRS
  • the terminal device further includes: a first determining unit, configured to determine, according to the first indication information, the downlink reference signal corresponding to the first SRS, and the first calculating unit, according to the The downlink reference signal corresponding to the first SRS is used to calculate precoding information of the first SRS
  • the sending unit is configured to transmit the first SRS to the network device according to the precoding information.
  • the first indication information is used to indicate the first SRS and/or a downlink reference signal corresponding to the first SRS.
  • the receiving unit is further configured to: receive second indication information that is sent by the network device, where the second indication information is used to indicate a first status identifier in the at least one status identifier;
  • the terminal device further includes: a second determining unit, configured to determine, according to the first state identifier and the mapping table, a first SRS corresponding to the first state identifier and a downlink reference signal corresponding to the first SRS; a unit, configured to calculate precoding information of the first SRS according to the downlink reference signal corresponding to the first SRS, and a second sending unit, configured to transmit the first SRS to the network device according to the precoding information.
  • the receiving unit is specifically configured to: receive a first timing relationship between the at least one SRS resource sent by the network device and a sending resource of a downlink reference signal, where the first timing relationship is used by And indicating a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or receiving a second timing relationship between the at least one SRS resource group and the transmission resource of the downlink reference signal sent by the network device, the second timing relationship And a mapping relationship between the at least one SRS resource group and the downlink reference signal.
  • the receiving unit is specifically configured to: receive, by the network device, a third timing relationship between a trigger signal for transmitting an SRS on the at least one SRS resource and a downlink reference signal, where the The third timing relationship is used to indicate a mapping relationship between the at least one SRS resource and the downlink reference signal; and/or receive a fourth between the trigger signal and the downlink reference signal sent by the network device to send the SRS on the at least one SRS resource group. a timing relationship, where the fourth timing relationship is used to indicate a mapping relationship between the at least one SRS resource and a downlink reference signal.
  • the downlink reference signal includes a channel state information reference signal CSI-RS and/or a synchronization signal block SSB.
  • the SRS includes at least one of an aperiodic SRS, a periodic SRS, and a semi-static SRS.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 400 respectively implement the terminal in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • the embodiment of the present application further provides a network device 500, which may be the network device 300 in FIG. 4, which can be used to execute the content of the network device corresponding to the method 100 in FIG. .
  • the network device 500 includes: an input interface 510, an output interface 520, and processing
  • the 530 and the memory 540, the input interface 510, the output interface 520, the processor 530, and the memory 540 can be connected by a bus system.
  • the memory 540 is for storing programs, instructions or code.
  • the processor 530 is configured to execute a program, an instruction or a code in the memory 540 to control the input interface 510 to receive a signal, control the output interface 520 to send a signal, and complete the operations in the foregoing method embodiments.
  • the network device in the embodiment of the present application can notify the terminal device of the mapping relationship between the SRS signal and the downlink reference signal, so that the terminal device can subsequently know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby Conducive to improve the performance of system transmission.
  • the processor 530 may be a central processing unit (CPU), and the processor 530 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 540 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 540 may also include a non-volatile random access memory. For example, the memory 540 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the transmitting unit in the network device 300 can be implemented by the output interface 520 in FIG.
  • the embodiment of the present application further provides a terminal device 600, which may be the terminal device 400 in FIG. 5, which can be used to execute the content of the terminal device corresponding to the method 200 in FIG. .
  • the terminal device 600 includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected through a bus system.
  • the memory 640 is used to store programs, instructions or code.
  • the processor 630 is configured to execute a program, an instruction, or a code in the memory 640 to control
  • the input interface 610 receives the signals, controls the output interface 620 to transmit signals, and performs the operations in the foregoing method embodiments.
  • the terminal device in the embodiment of the present application receives the mapping relationship between the SRS signal and the downlink reference signal that is notified by the network device, so that the terminal device can subsequently know which downlink reference signal is used to calculate the precoding information of the SRS to be transmitted, thereby Conducive to improve the performance of system transmission.
  • the processor 630 may be a central processing unit (CPU), and the processor 630 may also be other general-purpose processors, digital signal processors, application specific integrated circuits, and ready-made Program gate arrays or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the receiving unit in the terminal device 400 can be implemented by the input interface 610 in FIG. 7, and each determining unit and each computing unit in the terminal device 400 can be implemented by the processor 630 in FIG. Each of the transmitting units 400 can be implemented by the output interface 620 of FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the 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 of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例公开了一种用于传输信号的方法、网络设备和终端设备，该方法包括：网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。本申请实施例的方法、网络设备和终端设备，有利于提高系统的传输性能。

Description

用于传输信号的方法、网络设备和终端设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种用于传输信号的方法、网络设备和终端设备。
背景技术
针对新无线(New Radio，NR)中物理上行共享信道(Physical Uplink Shared Channel，PUSCH)的多入多出(Multiple-Input Multiple-Output，MIMO)技术传输方案设计中，基于非码本的上行(Uplink)多入多出(Non-codebook-based UL MIMO)是指终端根据网络的下行参考信号，估算下行信道信息，再根据下行信道信息计算探测参考信号(Sounding Reference Signal，SRS)预编码信息，进而终端可以根据计算出来的上行预编编码信息传输上行SRS。而在下行，会有各种不同的下行参考信号，终端不知道使用哪个下行参考信号计算待传输SRS的预编码信息，降低了系统传输的性能。
发明内容
有鉴于此，本申请实施例提供了一种用于传输信号的方法、网络设备和终端设备，有利于提高系统传输的性能。
第一方面，提供了一种用于传输信号的方法，该方法包括：网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
通过向终端设备告知SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
在一种可能的实现方式中，该网络设备向该终端设备发送至少一个SRS资源与下行参考信号的映射关系，包括：该网络设备向该终端设备发送该至少一个SRS资源中每个SRS资源的配置信息，该每个SRS资源的配置信息中分别包括用于指示与该每个SRS资源对应的下行参考信号的指示域。
在一种可能的实现方式中，该网络设备向该终端设备发送至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备向该终端设备发送至 少一个SRS资源组中每个SRS资源组的配置信息，该每个SRS资源组的配置信息分别包括用于指示与该每个SRS资源组中的SRS资源对应的至少一个指示域。
在一种可能的实现方式中，该指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
在一种可能的实现方式中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令向该终端设备发送映射组合，该映射组合包括该至少一个SRS资源与下行参考信号的映射关系和/或该至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该方法还包括：该网络设备向该终端设备发送第一指示信息，该第一指示信息用于触发该终端设备向该网络设备发送具有该映射关系的第一SRS。
在一种可能的实现方式中，该第一指示信息用于指示该第一SRS和/或与该第一SRS对应的下行参考信号。
在一种可能的实现方式中，该方法还包括：该网络设备向该终端设备发送第二指示信息，该第二指示信息用于指示该至少一个状态标识中的第一状态标识，以触发该终端设备向该网络设备发送具有该第一状态标识标识的映射关系的SRS。
在一种可能的实现方式中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备向该终端设备发送该至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，该第一时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该网络设备向该终端设备发送该至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，该第二时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备向该终端设备发送在该至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，该第三时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该网络设备向该终端设备发送在该至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，该第四时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
在一种可能的实现方式中，该SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
第二方面，提供了一种用于传输信号的方法，该方法包括：终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该终端设备接收网络设备发送的至少一个探测参考信号SRS资源与下行参考信号的映射关系，包括：该终端设备接收该网络设备发送的该至少一个SRS资源中每个SRS资源的配置信息，该每个SRS资源的配置信息中分别包括用于指示与该每个SRS资源对应的下行参考信号的指示域。
在一种可能的实现方式中，该终端设备接收网络设备发送的至少一个SRS资源组与下行参考信号的映射关系，包括：该终端设备接收该网络设备发送的至少一个SRS资源组中每个SRS资源组的配置信息，该每个SRS资源组的配置信息分别包括用于指示与该每个SRS资源组中的SRS资源对应的至少一个指示域。
在一种可能的实现方式中，该指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
在一种可能的实现方式中，该终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该终端设备接收该网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令发送的映射组合，该映射组合包括该至少一个SRS资源 与下行参考信号的映射关系和/或该至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该方法还包括：该终端设备接收该网络设备发送的第一指示信息，该第一指示信息用于触发该终端设备向该网络设备发送具有该映射关系的第一SRS；该终端设备根据该第一指示信息与该映射关系，确定与该第一SRS对应的下行参考信号；该终端设备根据该与该第一SRS对应的下行参考信号，计算该第一SRS的预编码信息；该终端设备根据该预编码信息，向该网络设备传输该第一SRS。
在一种可能的实现方式中，该第一指示信息用于指示该第一SRS和/或与该第一SRS对应的下行参考信号。
在一种可能的实现方式中，该方法还包括：该终端设备接收该网络设备发送的第二指示信息，该第二指示信息用于指示该至少一个状态标识中的第一状态标识；
该终端设备根据该第一状态标识与该映射表，确定与该第一状态标识对应的第一SRS以及与该第一SRS对应的下行参考信号；该终端设备根据该与该第一SRS对应的下行参考信号，计算该第一SRS的预编码信息；该终端设备根据该预编码信息，向该网络设备传输该第一SRS。
在一种可能的实现方式中，该终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该终端设备接收该网络设备发送的该至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，该第一时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该终端设备接收该网络设备发送的该至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，该第二时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
在一种可能的实现方式中，该终端设备接收网络设备发送的至少一个探 测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该终端设备接收该网络设备发送的在该至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，该第三时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该终端设备接收该网络设备发送的在该至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，该第四时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系。
在一种可能的实现方式中，该下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
在一种可能的实现方式中，该SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
第三方面，提供了一种网络设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，提供了一种终端设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
第八方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选的实现方式中的 方法，或者上述第二方面或第二方面的任一可选的实现方式中的方法。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了本申请实施例的用于传输信号的方法的示意性框图。
图3示出了本申请实施例的用于传输信号的方法的另一示意性框图。
图4示出了本申请实施例的网络设备的示意性框图。
图5示出了本申请实施例的终端设备的示意性框图。
图6示出了本申请实施例的网络设备的另一示意性框图。
图7示出了本申请实施例的终端设备的另一示意性框图。
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清楚、完整地描述。
应理解，本申请实施例的技术方案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 Evolved，LTE)系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、新无线(New Radio，NR)或未来的5G系统等。
特别地，本申请实施例的技术方案可以应用于各种基于非正交多址接入技术的通信系统，例如稀疏码多址接入(Sparse Code Multiple Access，SCMA)系统、低密度签名(Low Density Signature，LDS)系统等，当然SCMA系统和LDS系统在通信领域也可以被称为其他名称；进一步地，本申请实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统，例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division  Multiplexing，OFDM)、滤波器组多载波(Filter Bank Multi-Carrier，FBMC)、通用频分复用(Generalized Frequency Division Multiplexing，GFDM)、滤波正交频分复用(Filtered-OFDM，F-OFDM)系统等。
本申请实施例中的终端设备可以指用户设备(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。接入终端可以是蜂窝电话、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)、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，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是本申请实施例一个应用场景的示意图。图1中的通信系统可以包括终端设备10和网络设备20。网络设备20用于为终端设备10提供通信服务并接入核心网，终端设备10通过搜索网络设备20发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备10与网络设备20之间的蜂窝链路进行的上/下行传输。
针对NR中PUSCH的MIMO技术传输方案设计中，存在两大类传输方案。一种是基于码本的上行(Uplink)多入多出(Codebook-based UL MIMO)：UE发送多端口的SRS，网络根据SRS的测量结果，从一个码本集合中选择一个指定的码本通知UE，UE根据接收到的指定码本来进行数据的预编码，并进行传输。一种是基于非码本的上行多入多出(Non-codebook-based UL MIMO)：这种方案是针对信道互异性成立的情况。UE根据网络下行信号， 估计出下行信道信息，根据下行信道信息计算上行预编码矩阵，例如UE可以支持4端口的上行传输，则UE可能会计算出1个预编码矩阵(4维)，或者4个1维的预编码向量，然后UE(依次或者同时)发送4个单端口的SRS，每个SRS使用上面的预编码矩阵或者预编码向量进行预编码后再发送，网络根据对SRS的测量结果，指示1个或多个SRS。UE根据指示的SRS来进行PUSCH传输。例如网络指示了第一个SRS，则UE传输1个层(layer)的PUSCH，并且其预编码使用与第一个SRS对应。
而在下行，会有各种不同的下行参考信号(例如多个网络节点发送不同的信道状态信息参考信号(Channel State Information-Reference Signal，CSI-RS))，因此需要让UE知道使用哪个CSI-RS信号。而本申请则是在此场景下提出了一种配置方法，有利于提高系统传输的性能。
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。
还应理解，本文中术语“映射”和“关联”在本文中也常被可互换使用，例如，在本文中的“映射关系”其实就是一种“关联关系”。
图2示出了本申请实施例的用于传输信号的方法100的示意性框图。如图2所示，该方法100包括以下部分或全部内容：
S110，网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
具体地，网络设备可以为终端设备配置SRS与下行参考信号之间的映射关系。所谓SRS可以是指周期性SRS、也可以是非周期性SRS，还可以是半静态(Semi-persistent)SRS。所谓下行参考信号可以是指CSI-RS，也可以是指同步信号块(Synchronization Signal Block，SSB)等。通常不同SRS资源上传输的SRS信号是不同的信号，换句话说，SRS信号的不同可以由传输SRS的SRS资源来表征。网络设备可以预先配置至少一个SRS资源或者将至少一个SRS资源组，网络设备可以进一步地将至少一个SRS资源中的SRS资源与下行参考信号关联起来，具体地，网络设备可以将至少一个SRS资源中的每一个SRS资源与一个下行参考信号关联起来。举例来说，网络 设备为终端设备配置了SRS资源0，SRS资源1和SRS资源2共3个SRS资源，网络设备进一步地可以将SRS资源0映射到下行参考信号1上，将SRS资源1映射到下行参考信号2上，将SRS资源2映射到下行参考信号2上，并且网络设备可以将这种映射关系通知给终端设备。网络设备也可以对预配置的SRS资源进行分组，例如，将SRS资源0作为组1，将SRS资源1和SRS资源2作为组2，网络设备可以进一步地将组1映射到下行参考信号1上，将组2映射到下行参考信号2上，并且网络设备可以将这种映射关系通知给终端设备。终端设备在知道这种映射关系之后，可以根据映射关系来确定使用哪一个下行参考信号来计算待发送的SRS的预编码信息。
因此，本申请实施例的用于传输信号的方法，通过向终端设备告知SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
可选地，在本申请实施例中，该网络设备向该终端设备发送至少一个SRS资源与下行参考信号的映射关系，包括：该网络设备向该终端设备发送该至少一个SRS资源中每个SRS资源的配置信息，该每个SRS资源的配置信息中分别包括用于指示与该每个SRS资源对应的下行参考信号的指示域。
具体地，在终端设备与网络设备建立无线资源控制(Radio Resource Control，RRC)之后，网络设备会为终端设备配置上行参考信号的发送参数，也就是说，网络设备会向终端设备发送上行参考信号的配置信息，以SRS为例，SRS的配置信息可以包括SRS占用的带宽、SRS的发送周期(周期性SRS)、SRS发送的初始频域偏置等参数，这些参数定义了SRS发送所需的无线资源(频域资源、时域资源和码域资源等)。在本申请实施例中，网络设备可以分别向终端设备配置每一个SRS资源，并且网络设备可以利用SRS资源的配置信息，即在每一个SRS资源的配置信息中都有一个专门的指示域指示与该SRS资源对应的下行参考信号。换句话说，网络设备可以在向终端设备配置某个SRS的无线资源的同时配置与该SRS资源对应的下行参考信号。
可选地，在本申请实施例中，该网络设备向该终端设备发送至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备向该终端设备发 送至少一个SRS资源组中每个SRS资源组的配置信息，该每个SRS资源组的配置信息分别包括用于指示与该每个SRS资源组中的SRS资源对应的至少一个指示域。
具体地，网络设备也可以将预分配的多个SRS资源进行分组，并且分别向终端设备配置每一组SRS资源，也就是说，每一组SRS资源都有一个配置信息，网络设备可以利用每一组SRS资源的配置信息，即在每一组SRS资源的配置信息中携带专门用于指示与该组SRS资源中的SRS资源对应的下行参考信号的指示域，该指示域可以为1个，也可以为多个。若该指示域为1个，则终端设备可以认为某一组SRS资源中的所有SRS资源都与该指示域指示的下行参考信号对应，若该指示域为多个，则终端设备可以认为某一组SRS资源中的部分SRS资源与多个指示域中的某一指示域指示的下行参考信号对应。应理解，本申请实施例对于如何配置一组SRS资源内的SRS资源与下行参考信号的映射关系不作限定，可以对该组SRS资源内的所有SRS资源都关联一个下行参考信号，也可以对该组SRS资源内的部分SRS资源关联一个下行参考信号，也可以对该组SRS资源内的部分SRS资源不关联下行参考信号。
可选地，在本申请实施例中，该指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
具体地，该指示域可以是下行参考信号的标识，例如可以是该下行参考信号的资源标识。具体地，可以是CSI-RS资源索引或者SSB资源索引等。该指示域也可以直接是某个下行参考信号的配置信息，例如，可以是网络设备为该下行参考信号配置的无线资源(频域资源、时域资源和码域资源等)。终端设备一旦接收到某一个SRS资源的配置信息或某一组SRS资源的配置信息中的指示域指示的是某一个下行参考信号的配置信息，则终端设备可以认为该SRS资源或该组SRS资源与该下行参考信号关联。
可选地，在本申请实施例中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备通过无线资源控制RRC信令或媒体接入控制(MediaAccess Control，MAC)信令向该终端设备发送映射组合，该映射组合包括该至少一个SRS资源与下行参考信号的映射关系和/或该至少一个SRS资源组与下行参考信号的映射关系。
网络设备可以不在某个SRS资源或者某组SRS资源的配置信息中携带与之关联的下行参考信号，也就是说，网络设备不同时配置SRS资源和SRS资源与下行参考信号的映射关系，网络设备可以通过单独的信令向终端设备配置SRS资源与下行参考信号的映射关系。例如，网络设备可以通过单独的信令向终端设备发送一个映射组合，该映射组合可以包括多个SRS资源与下行参考信号的映射关系和/或多个SRS资源组与下行参考信号的映射关系。换句话说，该映射组合中既可以按组给SRS资源映射一个下行参考信号，也可以单独给SRS资源映射一个下行参考信号。
可选地，在本申请实施例中，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
该映射组合可以是一个映射表，如表1所示。
表1
Figure PCTCN2017108419-appb-000001
具体地，如表1所示，网络设备可以为每一对映射关系都配置一个状态标识，终端设备一旦获取到某一个状态标识，终端设备也就可以获取到该状态标识对应的映射关系。例如，假如网络设备向终端设备指示了状态标识1，终端设备就可以从表1中获取到是SRS资源标识1或SRS资源组表1与下行参考信号标识1的映射关系，进一步地终端设备可以根据网络设备指示的待传输SRS资源，就可以知道与之关联的下行参考信号。应理解，状态标识标识的映射关系可以是SRS资源与下行参考信号具有的映射关系，也可以认为某个SRS资源或某组SRS资源不具有关联的下行参考信号是一种映射关系，如表1中的状态标识3，本申请实施例对此不构成限定。
网络设备可以通过高层信令，如RRC信令或者MAC信令向终端设备发 送该映射组合，网络设备也可以通过系统消息、广播消息等向终端设备发送，本申请实施例不限于此。
可选地，在本申请实施例中，该方法还包括：该网络设备向该终端设备发送第一指示信息，该第一指示信息用于触发该终端设备向该网络设备发送具有该映射关系的第一SRS。
由上述可知，网络设备可以触发终端设备在某一个SRS资源上发送SRS或者在某一组SRS资源上发送SRS，终端设备在知道是哪一个SRS资源或者哪一组SRS资源后，终端设备就可以从上述各种映射关系中获取到与之对应的下行参考信号，进而可以计算待传输SRS的预编码信息，再采用计算出来的预编码信息，向网络设备发送该SRS。网络设备可以通过RRC和/或MAC信令和/或下行控制信息(Downlink Control Information，DCI)信令来触发某个SRS资源或者SRS资源组发送。该指示信息可以直接指示待传输的SRS资源，也可以间接指示与该待传输的SRS资源相关的一些信息，如与待传输的SRS资源关联的下行参考信号。
可选地，在本申请实施例中，该方法还包括：该网络设备向该终端设备发送第二指示信息，该第二指示信息用于指示该至少一个状态标识中的第一状态标识，以触发该终端设备向该网络设备发送具有该第一状态标识标识的映射关系的SRS。
具体地，若网络设备为终端设备配置的是如表1所述的映射组合，网络设备可以直接向终端设备指示某一个状态标识，终端设备就可以获取到该状态标识标识的映射关系中的SRS资源与下行参考信号，进而终端设备就可以知道待传输的SRS资源了。
可选地，在本申请实施例中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：该网络设备向该终端设备发送该至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，该第一时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该网络设备向该终端设备发送该至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，该第二时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系， 包括：该网络设备向该终端设备发送在该至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，该第三时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或该网络设备向该终端设备发送在该至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，该第四时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
具体地，在本申请实施例中，网络设备也可以不直接配置SRS资源与下行参考信号之间的映射关系，网络设备可以通过向终端设备配置SRS资源与下行参考信号的时序关系来表征SRS资源与下行参考信号的映射关系。例如，网络设备可以与终端设备约定好，每一个SRS资源在时域上的前一个下行参考信号可以认为是与之关联的。那么终端设备在获取到SRS资源与下行参考信号的时序关系之后，终端设备就可以依据与网络设备约定好的规则确定某个SRS资源关联的下行参考信号。类似地，SRS资源组与下行参考信号之间的时序关系也可以表征SRS资源组与下行参考信号的映射关系，这里就不赘述了。
网络设备也可以通过过向终端设备配置SRS的触发信号与下行参考信号的时序关系来表征SRS资源与下行参考信号的映射关系。例如，网络设备可以与终端设备约定好，每一个SRS的触发信号在时域上的前一个下行参考信号可以认为是与之关联的。那么终端设备在获取到SRS的触发信号与下行参考信号的时序关系之后，终端设备就可以依据与网络设备约定好的规则确定某个SRS资源关联的下行参考信号。类似地，SRS资源组的触发信号与下行参考信号之间的时序关系也可以表征SRS资源组与下行参考信号的映射关系，这里就不赘述了。
图3示出了本申请实施例的用于传输信号的方法200的示意性框图。如图3所示，该方法200包括以下部分内容或全部内容：
S210，终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
因此，本申请实施例的用于传输信号的方法，通过向终端设备告知SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
可选地，在本申请实施例中，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源与下行参考信号的映射关系，包括：所述终端设备接收所述网络设备发送的所述至少一个SRS资源中每个SRS资源的配置信息，所述每个SRS资源的配置信息中分别包括用于指示与所述每个SRS资源对应的下行参考信号的指示域。
可选地，在本申请实施例中，所述终端设备接收网络设备发送的至少一个SRS资源组与下行参考信号的映射关系，包括：所述终端设备接收所述网络设备发送的至少一个SRS资源组中每个SRS资源组的配置信息，所述每个SRS资源组的配置信息分别包括用于指示与所述每个SRS资源组中的SRS资源对应的至少一个指示域。
可选地，在本申请实施例中，所述指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
可选地，在本申请实施例中，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：所述终端设备接收所述网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令发送的映射组合，所述映射组合包括所述至少一个SRS资源与下行参考信号的映射关系和/或所述至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，所述方法还包括：所述终端设备接收所述网络设备发送的第一指示信息，所述第一指示信息用于触发所述终端设备向所述网络设备发送具有所述映射关系的第一SRS；所述终端设备根据所述第一指示信息与所述映射关系，确定与所述第一SRS对应的下行参考信号；所述终端设备根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；所述终端设备根据所述预编码信息，向所述网络设备传输所述第一SRS。
可选地，在本申请实施例中，所述第一指示信息用于指示所述第一SRS和/或与所述第一SRS对应的下行参考信号。
可选地，在本申请实施例中，所述方法还包括：所述终端设备接收所述网络设备发送的第二指示信息，所述第二指示信息用于指示所述至少一个状态标识中的第一状态标识；所述终端设备根据所述第一状态标识与所述映射表，确定与所述第一状态标识对应的第一SRS以及与所述第一SRS对应的下行参考信号；所述终端设备根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；所述终端设备根据所述预编码信息，向所述网络设备传输所述第一SRS。
可选地，在本申请实施例中，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：所述终端设备接收所述网络设备发送的所述至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，所述第一时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或所述终端设备接收所述网络设备发送的所述至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，所述第二时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：所述终端设备接收所述网络设备发送的在所述至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，所述第三时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或所述终端设备接收所述网络设备发送的在所述至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，所述第四时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系。
可选地，在本申请实施例中，所述下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
可选地，在本申请实施例中，所述SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
应理解，终端设备描述的终端设备与网络设备之间的交互及相关特性、功能等与网络设备的相关特性、功能相应。并且相关内容在上述方法100中 已经作了详尽描述，为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的用于传输信号的方法，下面将结合图4至图7，描述根据本申请实施例的用于传输信号的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图4示出了本申请实施例的网络设备300的示意性框图。如图4所示，该网络设备300包括：
发送单元310，用于向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
因此，本申请实施例的网络设备，通过向终端设备告知SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
可选地，在本申请实施例中，该发送单元具体用于：向该终端设备发送该至少一个SRS资源中每个SRS资源的配置信息，该每个SRS资源的配置信息中分别包括用于指示与该每个SRS资源对应的下行参考信号的指示域。
可选地，在本申请实施例中，该发送单元具体用于：该网络设备向该终端设备发送至少一个SRS资源组中每个SRS资源组的配置信息，该每个SRS资源组的配置信息分别包括用于指示与该每个SRS资源组中的SRS资源对应的至少一个指示域。
可选地，在本申请实施例中，该指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
可选地，在本申请实施例中，该发送单元具体用于：通过无线资源控制RRC信令或媒体接入控制MAC信令向该终端设备发送映射组合，该映射组合包括该至少一个SRS资源与下行参考信号的映射关系和/或该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标 识该至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该发送单元还用于：向该终端设备发送第一指示信息，该第一指示信息用于触发该终端设备向该网络设备发送具有该映射关系的第一SRS。
可选地，在本申请实施例中，该第一指示信息用于指示该第一SRS和/或与该第一SRS对应的下行参考信号。
可选地，在本申请实施例中，该发送单元还用于：该网络设备向该终端设备发送第二指示信息，该第二指示信息用于指示该至少一个状态标识中的第一状态标识，以触发该终端设备向该网络设备发送具有该第一状态标识标识的映射关系的SRS。
可选地，在本申请实施例中，该发送单元具体用于：向该终端设备发送该至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，该第一时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或向该终端设备发送该至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，该第二时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该发送单元具体用于：向该终端设备发送在该至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，该第三时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或向该终端设备发送在该至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，该第四时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
可选地，在本申请实施例中，该SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
应理解，根据本申请实施例的网络设备300可对应于本申请方法实施例中的网络设备，并且网络设备300中的各个单元的上述和其它操作和/或功能分别为了实现图2方法中网络设备的相应流程，为了简洁，在此不再赘述。
图5示出了本申请实施例的终端设备400的示意性框图。如图5所示，该终端设备400包括：
接收单元，用于接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
因此，本申请实施例的终端设备，通过接收网络设备告知的SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
可选地，在本申请实施例中，该接收单元具体用于：接收该网络设备发送的该至少一个SRS资源中每个SRS资源的配置信息，该每个SRS资源的配置信息中分别包括用于指示与该每个SRS资源对应的下行参考信号的指示域。
可选地，在本申请实施例中，该接收单元具体用于：接收该网络设备发送的至少一个SRS资源组中每个SRS资源组的配置信息，该每个SRS资源组的配置信息分别包括用于指示与该每个SRS资源组中的SRS资源对应的至少一个指示域。
可选地，在本申请实施例中，该指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
可选地，在本申请实施例中，该接收单元具体用于：接收该网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令发送的映射组合，该映射组合包括该至少一个SRS资源与下行参考信号的映射关系和/或该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，该映射组合还包括至少一个状态标识，该至少一个状态标识中的每个状态标识一一对应地用于标识该至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该接收单元还用于：接收该网络设备发送的第一指示信息，该第一指示信息用于触发该终端设备向该网络设备发送具有该映射关系的第一SRS；该终端设备还包括：第一确定单元，用于根据该第一指示信息与该映射关系，确定与该第一SRS对应的下行参考信号；第一计算单元，用于根据该与该第一SRS对应的下行参考信号，计算该第一SRS的预编码信息；发送单元，用于根据该预编码信息，向该网络设备传输该第一SRS。
可选地，在本申请实施例中，该第一指示信息用于指示该第一SRS和/或与该第一SRS对应的下行参考信号。
可选地，在本申请实施例中，该接收单元还用于：接收该网络设备发送的第二指示信息，该第二指示信息用于指示该至少一个状态标识中的第一状态标识；该终端设备还包括：第二确定单元，用于根据该第一状态标识与该映射表，确定与该第一状态标识对应的第一SRS以及与该第一SRS对应的下行参考信号；第二计算单元，用于根据该与该第一SRS对应的下行参考信号，计算该第一SRS的预编码信息；第二发送单元，用于根据该预编码信息，向该网络设备传输该第一SRS。
可选地，在本申请实施例中，该接收单元具体用于：接收该网络设备发送的该至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，该第一时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或接收该网络设备发送的该至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，该第二时序关系用于指示该至少一个SRS资源组与下行参考信号的映射关系。
可选地，在本申请实施例中，该接收单元具体用于：接收该网络设备发送的在该至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，该第三时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系；和/或接收该网络设备发送的在该至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，该第四时序关系用于指示该至少一个SRS资源与下行参考信号的映射关系。
可选地，在本申请实施例中，该下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
可选地，在本申请实施例中，该SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
应理解，根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备，并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图3方法中终端设备的相应流程，为了简洁，在此不再赘述。
如图6所示，本申请实施例还提供了一种网络设备500，该网络设备500可以是图4中的网络设备300，其能够用于执行与图2中方法100对应的网络设备的内容。该网络设备500包括：输入接口510、输出接口520、处理 器530以及存储器540，该输入接口510、输出接口520、处理器530和存储器540可以通过总线系统相连。该存储器540用于存储包括程序、指令或代码。该处理器530，用于执行该存储器540中的程序、指令或代码，以控制输入接口510接收信号、控制输出接口520发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的网络设备，通过向终端设备告知SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
应理解，在本申请实施例中，该处理器530可以是中央处理单元(Central Processing Unit，CPU)，该处理器530还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
该存储器540可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。存储器540的一部分还可以包括非易失性随机存取存储器。例如，存储器540还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器530中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用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540，处理器530读取存储器540中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，网络设备300中的发送单元可以由图6中的输出接口520实现。
如图7所示，本申请实施例还提供了一种终端设备600，该终端设备600可以是图5中的终端设备400，其能够用于执行与图3中方法200对应的终端设备的内容。该终端设备600包括：输入接口610、输出接口620、处理器630以及存储器640，该输入接口610、输出接口620、处理器630和存储器640可以通过总线系统相连。该存储器640用于存储包括程序、指令或代码。该处理器630，用于执行该存储器640中的程序、指令或代码，以控制 输入接口610接收信号、控制输出接口620发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的终端设备，通过接收网络设备告知的SRS信号与下行参考信号之间的映射关系，使得终端设备后续能够知道使用哪个下行参考信号来计算待传输SRS的预编码信息，从而有利于提高系统传输的性能。
应理解，在本申请实施例中，该处理器630可以是中央处理单元(Central Processing Unit，CPU)，该处理器630还可以是其他通用处理器、数字信号处理器、专用集成电路、现成可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
该存储器640可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。存储器640的一部分还可以包括非易失性随机存取存储器。例如，存储器640还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器630中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用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640，处理器630读取存储器640中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，终端设备400中的接收单元可以由图7中的输入接口610实现，终端设备400中的各个确定单元和各个计算单元可以由图7中的处理器630实现，终端设备400中的各个发送单元可以由图7中的输出接口620实现。
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，该单元的划分，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。
该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。
该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。基于这样的理解，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。
以上该，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该以权利要求的保护范围为准。

Claims (52)

  1. 一种用于传输信号的方法，其特征在于，包括：
    网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
  2. 根据权利要求1所述的方法，其特征在于，所述网络设备向所述终端设备发送至少一个SRS资源与下行参考信号的映射关系，包括：
    所述网络设备向所述终端设备发送所述至少一个SRS资源中每个SRS资源的配置信息，所述每个SRS资源的配置信息中分别包括用于指示与所述每个SRS资源对应的下行参考信号的指示域。
  3. 根据权利要求1所述的方法，其特征在于，所述网络设备向所述终端设备发送至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述网络设备向所述终端设备发送至少一个SRS资源组中每个SRS资源组的配置信息，所述每个SRS资源组的配置信息分别包括用于指示与所述每个SRS资源组中的SRS资源对应的至少一个指示域。
  4. 根据权利要求2或3所述的方法，其特征在于，所述指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
  5. 根据权利要求1所述的方法，其特征在于，所述网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令向所述终端设备发送映射组合，所述映射组合包括所述至少一个SRS资源与下行参考信号的映射关系和/或所述至少一个SRS资源组与下行参考信号的映射关系。
  6. 根据权利要求5所述的方法，其特征在于，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，
    所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述方法 还包括：
    所述网络设备向所述终端设备发送第一指示信息，所述第一指示信息用于触发所述终端设备向所述网络设备发送具有所述映射关系的第一SRS。
  8. 根据权利要求7所述的方法，其特征在于，所述第一指示信息用于指示所述第一SRS和/或与所述第一SRS对应的下行参考信号。
  9. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述至少一个状态标识中的第一状态标识，以触发所述终端设备向所述网络设备发送具有所述第一状态标识标识的映射关系的SRS。
  10. 根据权利要求1所述的方法，其特征在于，所述网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述网络设备向所述终端设备发送所述至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，所述第一时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    所述网络设备向所述终端设备发送所述至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，所述第二时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  11. 根据权利要求1所述的方法，其特征在于，所述网络设备向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述网络设备向所述终端设备发送在所述至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，所述第三时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    所述网络设备向所述终端设备发送在所述至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，所述第四时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
  13. 根据权利要求1至12中任一项所述的方法，其特征在于，所述SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
  14. 一种用于传输信号的方法，其特征在于，包括：
    终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
  15. 根据权利要求14所述的方法，其特征在于，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源与下行参考信号的映射关系，包括：
    所述终端设备接收所述网络设备发送的所述至少一个SRS资源中每个SRS资源的配置信息，所述每个SRS资源的配置信息中分别包括用于指示与所述每个SRS资源对应的下行参考信号的指示域。
  16. 根据权利要求14所述的方法，其特征在于，所述终端设备接收网络设备发送的至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述终端设备接收所述网络设备发送的至少一个SRS资源组中每个SRS资源组的配置信息，所述每个SRS资源组的配置信息分别包括用于指示与所述每个SRS资源组中的SRS资源对应的至少一个指示域。
  17. 根据权利要求15或16所述的方法，其特征在于，所述指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
  18. 根据权利要求14所述的方法，其特征在于，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述终端设备接收所述网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令发送的映射组合，所述映射组合包括所述至少一个SRS资源与下行参考信号的映射关系和/或所述至少一个SRS资源组与下行参考信号的映射关系。
  19. 根据权利要求18所述的方法，其特征在于，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，
    所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
  20. 根据权利要求14至19中任一项所述的方法，其特征在于，所述方 法还包括：
    所述终端设备接收所述网络设备发送的第一指示信息，所述第一指示信息用于触发所述终端设备向所述网络设备发送具有所述映射关系的第一SRS；
    所述终端设备根据所述第一指示信息与所述映射关系，确定与所述第一SRS对应的下行参考信号；
    所述终端设备根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；
    所述终端设备根据所述预编码信息，向所述网络设备传输所述第一SRS。
  21. 根据权利要求20所述的方法，其特征在于，所述第一指示信息用于指示所述第一SRS和/或与所述第一SRS对应的下行参考信号。
  22. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收所述网络设备发送的第二指示信息，所述第二指示信息用于指示所述至少一个状态标识中的第一状态标识；
    所述终端设备根据所述第一状态标识与所述映射表，确定与所述第一状态标识对应的第一SRS以及与所述第一SRS对应的下行参考信号；
    所述终端设备根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；
    所述终端设备根据所述预编码信息，向所述网络设备传输所述第一SRS。
  23. 根据权利要求14所述的方法，其特征在于，所述终端设备接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述终端设备接收所述网络设备发送的所述至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，所述第一时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    所述终端设备接收所述网络设备发送的所述至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，所述第二时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  24. 根据权利要求14所述的方法，其特征在于，所述终端设备接收网 络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系，包括：
    所述终端设备接收所述网络设备发送的在所述至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，所述第三时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    所述终端设备接收所述网络设备发送的在所述至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，所述第四时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系。
  25. 根据权利要求14至24中任一项所述的方法，其特征在于，所述下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
  26. 根据权利要求14至25中任一项所述的方法，其特征在于，所述SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
  27. 一种网络设备，其特征在于，所述网络设备包括：
    发送单元，用于向终端设备发送至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
  28. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    向所述终端设备发送所述至少一个SRS资源中每个SRS资源的配置信息，所述每个SRS资源的配置信息中分别包括用于指示与所述每个SRS资源对应的下行参考信号的指示域。
  29. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    所述网络设备向所述终端设备发送至少一个SRS资源组中每个SRS资源组的配置信息，所述每个SRS资源组的配置信息分别包括用于指示与所述每个SRS资源组中的SRS资源对应的至少一个指示域。
  30. 根据权利要求28或29所述的网络设备，其特征在于，所述指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
  31. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    通过无线资源控制RRC信令或媒体接入控制MAC信令向所述终端设备发送映射组合，所述映射组合包括所述至少一个SRS资源与下行参考信号的 映射关系和/或所述至少一个SRS资源组与下行参考信号的映射关系。
  32. 根据权利要求31所述的网络设备，其特征在于，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，
    所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
  33. 根据权利要求27至32中任一项所述的网络设备，其特征在于，所述发送单元还用于：
    向所述终端设备发送第一指示信息，所述第一指示信息用于触发所述终端设备向所述网络设备发送具有所述映射关系的第一SRS。
  34. 根据权利要求33所述的网络设备，其特征在于，所述第一指示信息用于指示所述第一SRS和/或与所述第一SRS对应的下行参考信号。
  35. 根据权利要求32所述的网络设备，其特征在于，所述发送单元还用于：
    所述网络设备向所述终端设备发送第二指示信息，所述第二指示信息用于指示所述至少一个状态标识中的第一状态标识，以触发所述终端设备向所述网络设备发送具有所述第一状态标识标识的映射关系的SRS。
  36. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    向所述终端设备发送所述至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，所述第一时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    向所述终端设备发送所述至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，所述第二时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  37. 根据权利要求27所述的网络设备，其特征在于，所述发送单元具体用于：
    向所述终端设备发送在所述至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，所述第三时序关系用于指示所述至少 一个SRS资源与下行参考信号的映射关系；和/或
    向所述终端设备发送在所述至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，所述第四时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  38. 根据权利要求27至37中任一项所述的网络设备，其特征在于，所述下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
  39. 根据权利要求27至38中任一项所述的网络设备，其特征在于，所述SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
  40. 一种终端设备，其特征在于，所述终端设备包括：
    接收单元，用于接收网络设备发送的至少一个探测参考信号SRS资源和/或至少一个SRS资源组与下行参考信号的映射关系。
  41. 根据权利要求40所述的终端设备，其特征在于，所述接收单元具体用于：
    接收所述网络设备发送的所述至少一个SRS资源中每个SRS资源的配置信息，所述每个SRS资源的配置信息中分别包括用于指示与所述每个SRS资源对应的下行参考信号的指示域。
  42. 根据权利要求40所述的终端设备，其特征在于，所述接收单元具体用于：
    接收所述网络设备发送的至少一个SRS资源组中每个SRS资源组的配置信息，所述每个SRS资源组的配置信息分别包括用于指示与所述每个SRS资源组中的SRS资源对应的至少一个指示域。
  43. 根据权利要求41或42所述的终端设备，其特征在于，所述指示域具体用于指示下行参考信号的标识或用于指示下行参考信号的配置信息。
  44. 根据权利要求40所述的终端设备，其特征在于，所述接收单元具体用于：
    接收所述网络设备通过无线资源控制RRC信令或媒体接入控制MAC信令发送的映射组合，所述映射组合包括所述至少一个SRS资源与下行参考信号的映射关系和/或所述至少一个SRS资源组与下行参考信号的映射关系。
  45. 根据权利要求44所述的终端设备，其特征在于，所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应 地用于标识所述至少一个SRS资源中每个SRS资源与下行参考信号的映射关系；或，
    所述映射组合还包括至少一个状态标识，所述至少一个状态标识中的每个状态标识一一对应地用于标识所述至少一个SRS资源组中每个SRS资源组与下行参考信号的映射关系。
  46. 根据权利要求40至45中任一项所述的终端设备，其特征在于，所述接收单元还用于：
    接收所述网络设备发送的第一指示信息，所述第一指示信息用于触发所述终端设备向所述网络设备发送具有所述映射关系的第一SRS；
    所述终端设备还包括：
    第一确定单元，用于根据所述第一指示信息与所述映射关系，确定与所述第一SRS对应的下行参考信号；
    第一计算单元，用于根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；
    发送单元，用于根据所述预编码信息，向所述网络设备传输所述第一SRS。
  47. 根据权利要求46所述的终端设备，其特征在于，所述第一指示信息用于指示所述第一SRS和/或与所述第一SRS对应的下行参考信号。
  48. 根据权利要求45所述的终端设备，其特征在于，所述接收单元还用于：
    接收所述网络设备发送的第二指示信息，所述第二指示信息用于指示所述至少一个状态标识中的第一状态标识；
    所述终端设备还包括：
    第二确定单元，用于根据所述第一状态标识与所述映射表，确定与所述第一状态标识对应的第一SRS以及与所述第一SRS对应的下行参考信号；
    第二计算单元，用于根据所述与所述第一SRS对应的下行参考信号，计算所述第一SRS的预编码信息；
    第二发送单元，用于根据所述预编码信息，向所述网络设备传输所述第一SRS。
  49. 根据权利要求40所述的终端设备，其特征在于，所述接收单元具体用于：
    接收所述网络设备发送的所述至少一个SRS资源与下行参考信号的发送资源之间的第一时序关系，所述第一时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    接收所述网络设备发送的所述至少一个SRS资源组与下行参考信号的发送资源之间的第二时序关系，所述第二时序关系用于指示所述至少一个SRS资源组与下行参考信号的映射关系。
  50. 根据权利要求40所述的终端设备，其特征在于，所述接收单元具体用于：
    接收所述网络设备发送的在所述至少一个SRS资源上发送SRS的触发信号与下行参考信号之间的第三时序关系，所述第三时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系；和/或
    接收所述网络设备发送的在所述至少一个SRS资源组上发送SRS的触发信号与下行参考信号之间的第四时序关系，所述第四时序关系用于指示所述至少一个SRS资源与下行参考信号的映射关系。
  51. 根据权利要求40至50中任一项所述的终端设备，其特征在于，所述下行参考信号包括信道状态信息参考信号CSI-RS和/或同步信号块SSB。
  52. 根据权利要求40至51中任一项所述的终端设备，其特征在于，所述SRS包括非周期SRS、周期SRS和半静态SRS中的至少一种。
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