WO2023050337A1 - Procédé de communication sans fil, dispositif terminal et dispositif réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif réseau Download PDF

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Publication number
WO2023050337A1
WO2023050337A1 PCT/CN2021/122228 CN2021122228W WO2023050337A1 WO 2023050337 A1 WO2023050337 A1 WO 2023050337A1 CN 2021122228 W CN2021122228 W CN 2021122228W WO 2023050337 A1 WO2023050337 A1 WO 2023050337A1
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WIPO (PCT)
Prior art keywords
srs
srs resource
indication information
transmission
information
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PCT/CN2021/122228
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English (en)
Chinese (zh)
Inventor
史志华
陈文洪
黄莹沛
Original Assignee
Oppo广东移动通信有限公司
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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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180097900.0A priority Critical patent/CN117242862A/zh
Priority to PCT/CN2021/122228 priority patent/WO2023050337A1/fr
Publication of WO2023050337A1 publication Critical patent/WO2023050337A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a wireless communication method, a terminal device, and a network device.
  • network devices can use channel reciprocity to obtain downlink channel information by measuring the sounding reference signal (SRS).
  • SRS sounding reference signal
  • the number of transmitting antennas of a terminal device may be less than the number of receiving antennas.
  • they can also obtain downlink channel information through channel reciprocity.
  • NR The system supports the use of SRS antenna switching to obtain downlink channel information.
  • the terminal device After the network device indicates the SRS resource set parameters used for antenna switching through radio resource control (Radio Resource Control, RRC) signaling, the terminal device performs SRS transmission according to the SRS resource set parameters.
  • RRC Radio Resource Control
  • the network device needs to reconfigure the SRS resource set parameters through RRC signaling. The delay resulting in the change of the antenna switching mechanism is relatively large, and the signaling overhead is also relatively large.
  • the present application provides a wireless communication method, a terminal device, and a network device, which are beneficial to reducing the delay of changing an antenna switching mechanism and simultaneously reducing signaling overhead.
  • a wireless communication method including: a terminal device receiving first information sent by a network device, wherein the first information includes first indication information, and the first indication information is used to indicate the following At least one of:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for SRS transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for SRS transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for SRS transmission.
  • a wireless communication method including: a network device sending first information to a terminal device, where the first information includes first indication information, and the first indication information is used to indicate the following At least one of:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for SRS transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for SRS transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for SRS transmission.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a network device configured to execute the method in the foregoing second aspect or various implementation manners thereof.
  • the network device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a sixth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a chip is provided for implementing any one of the above first aspect to the second aspect or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to second aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner thereof.
  • a ninth aspect provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above first to second aspects or the method in each implementation manner.
  • a computer program which, when running on a computer, causes the computer to execute any one of the above-mentioned first to second aspects or the method in each implementation manner.
  • the network device can dynamically indicate the changed SRS resource set parameters by indicating the transmission status of the SRS resource set parameters through the first information, and does not need to reconfigure the SRS resource set parameters through RRC signaling, which is beneficial to reduce the antenna switching mechanism
  • the delay of the change realizes the rapid adjustment of the parameters of the SRS resource set, and at the same time helps to reduce the signaling overhead.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of SRS resource set parameters.
  • Fig. 3 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.
  • FIG. 4 is a MAC CE format diagram indicating SRS resources used for transmission or not used for transmission in an SRS resource set according to an embodiment of the present application.
  • FIG. 5 is a MAC CE format diagram indicating multiple SRS resources used for transmission or not used for transmission in an SRS resource set according to an embodiment of the present application.
  • FIG. 6 is a MAC CE format diagram indicating SRS resources used for transmission or not used for transmission in a set of multiple SRS resources according to an embodiment of the present application.
  • FIG. 7 is a MAC CE format diagram indicating SRS resources used for transmission and SRS resources not used for transmission in the SRS resource set according to an embodiment of the present application.
  • FIG. 8 is a MAC CE format diagram indicating that all SRS resources in the SRS resource set are used for transmission or none are used for transmission according to an embodiment of the present application.
  • FIG. 9 is a MAC CE format diagram indicating SRS resources used for transmission and SRS resources not used for transmission in the SRS resource set according to another embodiment of the present application.
  • FIG. 10 is a MAC CE format diagram indicating SRS resources used for transmission and SRS resources not used for transmission in a set of multiple SRS resources according to an embodiment of the present application.
  • 11 is a MAC CE format diagram indicating SRS resources used for transmission and SRS resources not used for transmission in a set of multiple SRS resources according to another embodiment of the present application.
  • FIG. 12 is a MAC CE format diagram of an SRS port used for transmission indicating an SRS resource in an SRS resource set according to an embodiment of the present application.
  • FIG. 13 is a MAC CE format diagram of an SRS port used for transmission indicating SRS resources in a plurality of SRS resource sets according to an embodiment of the present application.
  • FIG. 14 is a MAC CE format diagram indicating SRS ports used for transmission and SRS ports not used for transmission of SRS resources in the SRS resource set according to another embodiment of the present application.
  • FIG. 15 is a MAC CE format diagram indicating that all SRS ports of SRS resources in the SRS resource set are used for transmission or none are used according to an embodiment of the present application.
  • FIG. 16 is a MAC CE format diagram indicating SRS ports used for transmission and SRS ports not used for transmission of SRS resources in the SRS resource set according to another embodiment of the present application.
  • FIG. 17 is a MAC CE format diagram of an SRS port used for transmission and an SRS port not used for transmission indicating SRS resources in a plurality of SRS resource sets according to an embodiment of the present application.
  • FIG. 18 is a MAC CE format diagram of an SRS port used for transmission and an SRS port not used for transmission indicating SRS resources in a plurality of SRS resource sets according to an embodiment of the present application.
  • FIG. 19 is a MAC CE format diagram indicating the transmission status of SRS resources and SRS ports in the SRS resource set according to an embodiment of the present application.
  • Fig. 20 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 21 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 22 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 23 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 24 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, broadband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolutional Node B, eNB or eNodeB
  • gNB network equipment in the network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • the communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions.
  • the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which is not limited in the present application.
  • the Sounding Reference Signal is an important reference signal in the NR system and is widely used in various functions in the NR system, such as:
  • codebook-based UL transmission codebook-based UL transmission
  • the network device can configure one or more SRS resource sets (SRS Resource set) for the terminal device, and each SRS Resource set can configure one or more SRS resources (SRS resource).
  • SRS Resource set SRS resource sets
  • SRS resource SRS resource sets
  • the transmission of the SRS may include the following types: periodic (Periodic), semi-persistent (Semi-persistent), and aperiodic (Aperiodic).
  • Periodic SRS refers to SRS that is transmitted periodically.
  • the period and time slot offset of SRS can be configured by Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • Spatial Relation Info (Spatial Relation Info, indicating the transmission beam in an implicit way) of the periodic SRS can also be configured by RRC signaling.
  • the space-related information can indicate a reference channel state information reference signal (Channel State Information Reference Signal, CSI-RS), reference synchronization signal block (Synchronization Signal Block, SSB) or reference SRS, and the terminal device according to the indicated reference CSI-RS /Determine the transmission beam of the SRS resource with reference to the reception beam of the SSB, or determine the transmission beam of the SRS resource according to the transmission beam of the reference SRS resource.
  • CSI-RS Channel State Information Reference Signal
  • SSB Synchrononization Signal Block
  • the terminal device uses the same spatial domain transmission filter (spatial domain transmission filter) as the received indicated reference CSI-RS/reference SSB to send the corresponding SRS resource, or uses the same spatial domain transmission filter as the reference SRS resource to send Corresponding SRS resource.
  • spatial domain transmission filter spatial domain transmission filter
  • Semi-persistent SRS is also an SRS for periodic transmission.
  • the period and slot offset (slot offset) are configured by RRC signaling, but its activation and deactivation signaling can be passed through the Media Access Control Control Element (Media Access Control Control Element, MAC CE) bearer.
  • the terminal device After receiving the activation signaling, the terminal device starts to periodically transmit the SRS until it receives the deactivation signaling.
  • the space-related information (transmission beam) of the semi-persistent SRS is carried by the MAC CE that activates the SRS.
  • the terminal device After receiving the cycle and time slot offset configured by RRC, the terminal device determines the time slot that can be used to transmit SRS according to the following formula:
  • T SRS and T offset are the configured period and offset
  • n f and are the radio frame and slot numbers, respectively.
  • aperiodic SRS transmission is introduced, and the network device can trigger the SRS transmission of the terminal device through the downlink control information (Downlink Control Information, DCI).
  • the trigger signaling used to trigger aperiodic SRS transmission can be used to schedule the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH)/physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) in the UE-specific search space.
  • Downlink control The information (Downlink Control Information, DCI) bearer may also be carried by the DCI format 2_3 (format 2_3) in the public search space.
  • DCI format 2_3 can not only be used to trigger aperiodic SRS transmission, but also can be used to configure SRS transmission on a group of UEs or a group of carriers and the corresponding transmission power control (Transmission Power Control, TPC) command.
  • TPC Transmission Power Control
  • the terminal device After receiving the aperiodic SRS trigger signaling (for example, DCI), the terminal device performs SRS transmission on the SRS resource set indicated by the trigger signaling.
  • the slot offset (slot offset) between the trigger signaling and the SRS transmission is configured by high layer signaling (for example, RRC signaling).
  • the network device instructs the terminal device in advance through high-layer signaling the configuration parameters of each SRS resource set (ie SRS resource set parameters, (SRS-ResourceSet)), including time-frequency resources, sequence parameters, power control parameters, etc.
  • the terminal device can also determine the transmission beam or spatial transmission filter used to transmit the SRS on the SRS resource through the spatial correlation information of the SRS resource.
  • the spatial correlation information is passed through the RRC Configured for each SRS resource.
  • MIMO Multiple Input Multiple Output
  • precoding may also be replaced by beamforming
  • beamforming may also be replaced by precoding
  • the precoding matrix is determined based on the transmission channel information corresponding to the terminal.
  • the precoding matrix may also be determined based on channel information, interference information, and the like corresponding to the multi-user MIMO paired users. Therefore, to determine the precoding matrix for terminal A, a basic requirement is to obtain the channel information of the transmission channel corresponding to terminal A.
  • base station B sends reference information X (such as a CSI-RS signal), and terminal A measures and obtains the information of the corresponding downlink channel according to the reference signal X, and then determines the corresponding channel feedback information. Based on the channel feedback information of terminal A, base station B determines the corresponding precoding matrix to send PDSCH, or physical downlink control channel (Physical Downlink Control Channel, PDCCH), or other downlink channels or downlink reference signals to terminal A.
  • reference information X such as a CSI-RS signal
  • terminal A measures and obtains the information of the corresponding downlink channel according to the reference signal X, and then determines the corresponding channel feedback information.
  • base station B determines the corresponding precoding matrix to send PDSCH, or physical downlink control channel (Physical Downlink Control Channel, PDCCH), or other downlink channels or downlink reference signals to terminal A.
  • PDCCH Physical Downlink Control Channel
  • the channel feedback information may include at least one of the following:
  • Rank Indication (Rank Indication, RI) (corresponding to the number of transmission streams suggested by the terminal);
  • CQI Channel Quality Indicator
  • MCS Modulation and Coding Scheme
  • Precoding Matrix Indicator (Precoding Matrix Indicator, PMI) (corresponding to codebook information).
  • terminal A sends SRS information according to the configuration information of base station B
  • base station B measures the corresponding uplink channel according to the received SRS information
  • base station B can determine terminal A according to the mutual dissimilarity of uplink and downlink channels
  • the corresponding precoding matrix is used to send PDSCH or PDCCH, or other downlink channels or downlink reference signals
  • the usage (usage) in the SRS resource set parameter (ie SRS-ResourceSet) corresponding to the SRS signal is set to "antennaSwitching", where one SRS-ResourceSet includes one or more SRS resources.
  • SRS signal sounding sounding
  • UE sounding procedure for DL CSI acquisition UE sounding procedure for DL CSI acquisition
  • SRS Tx port switching antenna switching
  • the number of receiving antennas is often greater than the number of sending antennas.
  • terminal A has two receiving antennas, but only one sending antenna (single moment). Therefore, if terminal A sends an SRS (for a single antenna, the corresponding SRS resource is 1 SRS port), base station B can only obtain 8*1 channels, that is, it cannot know the channel information corresponding to half of the channels, which will affect the acquisition of more precoding performance.
  • the number of transmitting antennas, the number of receiving antennas of terminal A, and whether it supports “antennaSwitching" (or, whether it supports SRS Tx port switching), can have different implementations, and report through UE capability (UE capability).
  • the terminal device can report at least one of the following UE capabilities:
  • t1r2 is used for 1T2R
  • t2r4 is used for 2T4R
  • t1r4 is used for 1T4R
  • t1r4-t2r4 is used for 1T4R/2T4R
  • 0 or 1 or 2 SRS resource sets can be configured.
  • the resource types (resourceType) corresponding to the two SRS resource sets are configured with different values, for example, the value can be aperiodic, semiPersistent, or periodic.
  • the resource types corresponding to the SRS resource sets are similar, so I won’t repeat them here.
  • Each SRS resource set includes two single-port (ie 1-port, or SRS port (SRS port)) SRS resource, these two SRS resource are transmitted on different symbols (symbol), and the same SRS resource set
  • the two SRS resources in correspond to different UE antenna ports (UE antenna port), corresponding to the example in Figure 2.
  • each SRS resource set includes 2 SRS resources, each SRS resource includes 2 SRS ports, and the two SRS resources are on different symbols Transmission, and the UE antenna port pair corresponding to the SRS port pair of the second SRS resource in the same SRS resource set is different from the SRS port pair of the first SRS resource.
  • Each SRS resource set can be configured (periodic or semi-persistent).
  • Each SRS resource set includes 4 single-port (1-port) SRS resources, each SRS resource is transmitted on a different symbol, and different SRS resources correspond to different UE antenna ports.
  • the 2 SRS resource sets can be configured (both configured as aperiodic).
  • the 2 SRS resource sets include a total of 4 single-port (1-port) SRS resources, which are transmitted on different symbols in two different slots.
  • the 4 SRS resources correspond to different UE antenna ports.
  • the 4 SRS resources can be that each SRS resource set includes 2 SRS resources, or that 1 SRS resource set includes 3 SRS resources, and the other SRS resource set includes 1 SRS resource.
  • each SRS resource set contains 1 SRS resource, and the number of SRS ports corresponding to the SRS resource is 1 and 2 respectively or 4.
  • all SRS resources in the SRS resource set need to be configured with the same SRS port (for example, 1 or 2 SRS ports).
  • the value of x may be one of ⁇ 1, 2, 4 ⁇ .
  • the value of x may be one of ⁇ 1, 2, 4, 6, 8 ⁇ .
  • the antenna switching configuration supported by the terminal device can be understood as a UE antenna switching capability (UE antenna switching capability).
  • the UE antenna switching capability of "xTyR” corresponds to: a UE capable of performing SRS transmission on the "x" antenna port, and "y” corresponds to all or a subset of UE receiving antennas, where the terminal supports 2T4R, Indicates that the terminal has two transmit antennas.
  • the SRS resource can be expressed as:
  • the SRS resources of A ports the SRS resources of A ports, the SRS resources of A SRS ports, the SRS resources of A ports, and the SRS resources of A ports.
  • antenna switching requires switching time, so the interval between SRS resources transmitted in the same time slot in the same SRS resource set is Y symbols, where Y can be 1 or 2, etc.
  • the terminal device After a network device indicates an SRS resource set parameter (ie, SRS-ResourceSet) through RRC signaling, the terminal device performs SRS transmission according to the SRS resource set parameter.
  • SRS resource set parameter ie, SRS-ResourceSet
  • the antenna switching mechanism such as changing from 2T4R antenna switching to 1T2R or 2T2R antenna switching.
  • the network device needs to reconfigure the SRS resource set parameters through RRC signaling, resulting in a relatively long delay in changing the antenna switching mechanism, which is not conducive to the rapid adjustment of the SRS resource set parameters, and the signaling overhead is also relatively large.
  • FIG. 3 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
  • the method 200 can be executed by a terminal device in the communication system shown in FIG. 1.
  • the method 200 includes the following content :
  • the terminal device receives first information sent by the network device, where the first information includes first indication information, and the first indication information is used to indicate at least one of the following:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for SRS transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for SRS transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for SRS transmission.
  • the first indication information may indicate one or more items above, for example, the first indication information indicates that at least one first SRS resource in the first SRS resource set is used for SRS transmission and at least one of the first SRS resource set The second SRS resource is not used for SRS transmission; for another example, the first indication information indicates that at least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission and at least one third SRS resource in the first SRS resource set At least one first SRS port of is used for SRS transmission, wherein the first SRS resource and the third SRS resource are the same SRS resource.
  • the first indication information may also indicate other similar combinations, which will not be listed one by one here. In other similar descriptions, the specific combination will not be repeated.
  • being used for SRS transmission may also be expressed as being used for transmission, and not being used for SRS transmission may also be expressed as not being used for transmission.
  • the first indication information may indicate at least one of the following:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for transmission.
  • whether SRS resources are used for SRS transmission can be understood as a transmission state of SRS resources, that is, SRS resources are indicated as being used for transmission, or not used for transmission, or indicated as being able to be used for transmission status, or a status that is not used for transmission.
  • whether the SRS port is used for SRS transmission can be understood as the transmission status of the SRS port, that is, the SRS port is indicated as being used for transmission, or not used for transmission, or in other words, the SRS port is indicated as a state that can be used for transmission, Or a state not used for transmission.
  • the SRS resource set is used for SRS transmission can be understood as the transmission status of the SRS resource set, that is, the SRS resource set is indicated as being used for transmission, or not used for transmission, or the SRS resource set is indicated as a state that can be used for transmission, Or a state not used for transmission. .
  • the first indication information may be used to indicate the transmission status of each SRS resource set in at least one SRS resource set, and/or the transmission status of the SRS resources in the SRS resource set, and/or Or, the transmission status of the SRS port of the SRS resource.
  • the first indication information may also be used to indicate the transmission state of the second SRS resource set, and/or the transmission state of the SRS resources in the second SRS resource set, and/or, the SRS resources included in the second SRS resource level
  • the transmission status of the SRS port may also indicate the transmission status of more SRS resource sets, and the first SRS resource set is used as an example for illustration below, but the present application is not limited thereto.
  • the method 200 also includes:
  • the network device sends first configuration information to the terminal device, where the first configuration information is used to configure at least one SRS resource set, where the at least one SRS resource set includes the first SRS resource set.
  • the first configuration information includes SRS resource set parameters (that is, SRS-ResourceSet) corresponding to each SRS resource set in at least one SRS resource set.
  • SRS resource set parameters that is, SRS-ResourceSet
  • the SRS resource set parameters corresponding to the SRS resource set may be used to configure parameters such as resource types, time-frequency resources, sequence parameters, and power control parameters of the SRS resource set.
  • the first configuration information is sent through RRC signaling.
  • the terminal device may use the first configuration information to perform SRS transmission.
  • a different antenna switching mechanism such as changing from a 2T4R antenna switching mechanism to a 1T2R or 2T2R antenna switching mechanism.
  • the parameters of the SRS resource set need to be changed.
  • changing SRS resource set parameters is achieved by network devices reconfiguring SRS resource set parameters through RRC signaling. Therefore, the delay in changing the antenna switching mechanism is relatively large, which is not conducive to the rapid adjustment of SRS resource set parameters. At the same time, the signaling overhead is relatively large.
  • changing the SRS resource set parameter may be implemented by changing the transmission status of the SRS resource set parameter.
  • the network device may indicate the parameter of the SRS resource set whose transmission state changes. For example, the SRS resource set whose transmission state is changed, and/or the SRS resource whose transmission state is changed, and/or the SRS port whose transmission state is changed.
  • the network device may indicate the changed transmission status of the SRS resource set parameter, for example, indicate the changed transmission status corresponding to the SRS resource set, and/or the changed transmission status corresponding to the SRS resource, and/or, the SRS port The corresponding changed transfer status.
  • changing the transmission status of the SRS resource set parameters includes at least one of the following:
  • Change the transmission status of the SRS resource set for example, indicate that the SRS resource set is used for transmission, or indicate that the SRS resource set is not used for transmission;
  • Changing the transmission status of the SRS ports of the SRS resources in the SRS resource set for example, indicating that at least one first SRS port of the SRS resource is used for transmission and/or at least one second SRS port is not used for transmission.
  • the network device indicates the transmission status of the SRS resource set parameters through the first information, which can dynamically indicate the changed SRS resource set parameters, for example, the SRS resource set parameters that need to be changed due to the change of the antenna switching mechanism , without the need to reconfigure SRS resource set parameters through RRC signaling, it can realize dynamic indication of SRS resources, help reduce the delay of antenna switching mechanism change, realize rapid adjustment of SRS resource set parameters, and help reduce signaling overhead .
  • the technical solutions based on the embodiments of the present application can realize dynamic antenna switching, or dynamic indication of SRS resources, that is, the embodiments of the present application provide a dynamic indication scheme for antenna switching, or a dynamic indication scheme for SRS resources, or, Antenna dynamic switching solution, therefore, the first information may also be replaced by an antenna switching dynamic indication, an SRS resource dynamic indication, or other equivalent expressions, which are not limited in this application.
  • the embodiments of the present application can be applied to the scenario where the parameters of the SRS resource set need to be changed due to the change of the antenna switching mechanism, or can also be applied to the scenario where the parameters of the SRS resource set need to be changed due to other reasons.
  • An example is used for description, but the present application is not limited thereto.
  • the antenna switching mechanism or antenna switching configuration, antenna switching capability, SRS Tx port switching capability, etc., the above expressions are equivalent and can be replaced with each other.
  • the antenna switching configuration may include at least one of the following:
  • the SRS resource set parameters corresponding to the first SRS resource set include a resource type parameter (resourceType).
  • the resourceType in the SRS resource set parameter corresponding to the first SRS resource set is configured as aperiodic (aperiodic).
  • the resourceType in the SRS resource set parameter corresponding to the first SRS resource set is configured as one of semi-persistent (semiPersistent) and periodic (periodic).
  • semi-persistent semi-persistent
  • periodic periodic
  • the resourceType in the SRS resource set parameter corresponding to the first SRS resource set is configured as one of aperiodic (aperiodic), semi-persistent (semiPersistent) and periodic (periodic).
  • aperiodic aperiodic
  • semi-persistent semi-persistent
  • periodic periodic
  • the network device may send the first information through any downlink signaling or downlink message, which is not limited in the present application.
  • the first information may be transmitted through MAC CE signaling.
  • the first information is transmitted through DCI signaling.
  • Transmission of the first information through MAC CE signaling or DCI signaling can realize dynamic indication of SRS resources and reduce the delay of SRS transmission.
  • the network device may carry the first information through an existing field in the MAC CE signaling or the DCI signaling, for example, using a reserved field in the MAC CE signaling or the DCI signaling, or may also be in The newly added field in the MAC CE signaling or DCI signaling carries the first information, which is not limited in this application.
  • the first indication information may be used to indicate the changed SRS resource set parameters corresponding to the first SRS resource set, for example, by indicating the transmission status of the SRS resource set parameters
  • the changed SRS resource set parameters or in other words, the first indication information is used to indicate the changed transmission status corresponding to the SRS resource set parameters.
  • the first indication information may be used to indicate the changed SRS resource set parameters corresponding to the first SRS resource set, that is, may not indicate SRS resources whose transmission status has not changed Set parameters, which only indicate the set parameters of the SRS resource whose transmission state changes.
  • the first indication information may indicate the SRS resource set whose transmission state has changed, and/or the SRS resource whose transmission state has changed, and/or the SRS port whose transmission state has changed.
  • the unindicated SRS resource set parameters may be considered as no change in the transmission state.
  • the changed SRS resource set parameters may be at the granularity of the SRS resource set, or at the granularity of the SRS resource, or at the granularity of the SRS port, which is not limited in the present application.
  • the first information is used to deactivate (or disable) one or more SRS resource sets, that is, the one or more SRS resource sets are not used for transmission, or deactivate (or disable) one SRS resource set , to disable) one or more SRS resources, that is, the one or more SRS resources are not used for transmission, or, for one SRS resource, deactivate (or, disable) one or more SRS ports, that is, the one or more Multiple SRS ports are not used for transmission etc.
  • the network device configures two SRS resource sets through RRC signaling, and in the second antenna switching configuration, the network device needs to instruct the terminal device to use only one SRS resource set for transmission, then
  • the first information may be used to indicate to disable an SRS resource set, that is, to indicate that the SRS resource set is not used for transmission.
  • an SRS resource set configured by the network device through RRC signaling includes 4 SRS resources
  • the network device needs to indicate 2 SRS resources in the SRS resource set If used for transmission, the first information may be used to indicate to disable two SRS resources in the one SRS resource set, that is, to indicate that the two SRS resources are not used for transmission.
  • one SRS resource configured by the network device through RRC signaling includes two SRS ports
  • the network device needs to indicate that one SRS port of the one SRS resource uses For transmission, the first information may be used to indicate to disable one of the two SRS ports of the one SRS resource, that is, to indicate that one SRS port of the SRS resource is not used for transmission.
  • the network device when changing from the second antenna switching configuration to the first antenna switching configuration, may indicate the enabled SRS resource set, and/or SRS resource, and/or SRS port through the first information.
  • the first indication information may also be used to indicate the changed SRS resource sets corresponding to the multiple SRS resource sets respectively.
  • the resource set parameters, or the changed SRS resource set parameters of each SRS resource set in the plurality of SRS resource sets, are described below by taking the first SRS resource set as an example, but the present application is not limited thereto.
  • the first indication information may be used to dynamically indicate the granularity of the SRS resource set, and/or the granularity of the SRS resource, and/or the granularity of the SRS port.
  • the first indication information is used to indicate that all SRS resources in an SRS resource set are not used for SRS transmission, or are all used for SRS transmission. Indicates the granularity of the corresponding SRS resource set.
  • the first indication information is used to indicate that at least one first SRS resource in an SRS resource set is used for SRS transmission, and/or, at least one second SRS resource is not used for SRS transmission. Corresponding to the indication of SRS resource granularity.
  • the first indication information is used to indicate that at least one first SRS port of one SRS resource is used for SRS transmission, and/or, at least one second SRS port is not used for SRS transmission. Indication of the corresponding SRS port granularity.
  • the first indication information includes:
  • the network device may indicate the SRS resources used for SRS transmission in one SRS resource set, and/or, the SRS resources not used for SRS transmission in one SRS resource set.
  • the network device can dynamically indicate the SRS resource granularity.
  • the network device when the network device only indicates the SRS resources in one SRS resource set that are not used for SRS transmission, then other SRS resources in the one SRS resource set are used for SRS transmission.
  • the network device when the network device only indicates the SRS resources used for SRS transmission in one SRS resource set, other SRS resources in the one SRS resource set are not used for SRS transmission.
  • the network device can change the terminal device from one antenna switching mechanism to another antenna switching mechanism by indicating that part of the SRS resources in an SRS resource set are not used for transmission or part of the SRS resources are used for transmission.
  • the indication information of the at least one first SRS resource may be an identity (Identity, ID) of the at least one SRS resource, an index, or a number of the at least one SRS resource in the first SRS resource set, Or serial number, etc., the present application is not limited thereto.
  • the indication information of the at least one second SRS resource may be the ID and index of the at least two SRS resources, or the number or serial number of the at least two SRS resources in the first SRS resource set, etc., the present application It is not limited to this.
  • the first indication information may include the indication information of the at least one first SRS resource, which is beneficial to reduce signaling overhead.
  • the first indication information may include the indication information of the at least one second SRS resource, which is beneficial to reduce signaling overhead.
  • the network device indicates at least one first SRS resource and/or at least one second SRS resource in a bitmap (bitmap) manner.
  • the number of at least one first SRS resource and/or at least one second SRS resource is large or the ID is long, it is beneficial to indicate whether the SRS resources in one SRS resource set are used for SRS transmission in a bitmap manner Reduce signaling overhead.
  • the first indication information includes a first bitmap
  • the first bitmap includes a plurality of bits
  • each bit corresponds to an SRS resource in the first SRS resource set
  • the value of each bit is used to indicate Whether the corresponding SRS resource is used for SRS transmission.
  • a value of 1 indicates that the corresponding SRS resource is used for SRS transmission, and a value of 0 indicates that the corresponding SRS resource is not used for SRS transmission.
  • a value of 0 indicates that the corresponding SRS resource is used for SRS transmission, and a value of 1 indicates that the corresponding SRS resource is not used for SRS transmission.
  • the first bitmap may include 8 bits (B7-B0), and each bit corresponds to one SRS resource. If the first The bitmap is 00001111, where a bit value of 1 indicates that the corresponding SRS resource is used for SRS transmission, a value of 0 indicates that the corresponding SRS resource is not used for SRS transmission, and the first bitmap indicates that SRS resource 0 to SRS resource 3 are used For SRS transmission, SRS resource 4 to SRS resource 7 are not used for SRS transmission.
  • the first indication information may be used to indicate that all SRS resources in the first SRS resource set are not used for SRS transmission, or all SRS resources in the first SRS resource set are used for SRS transmission.
  • the first indication information includes a first indication field, and the first indication field is used to indicate that all SRS resources in the first SRS resource set are not used for SRS transmission, or that all SRS resources in the first SRS resource set are not used for SRS transmission. Both are used for SRS transmission.
  • the aforementioned at least one first SRS resource may include all the SRS resources in the first SRS resource set, or the aforementioned at least one second SRS resource may include all the SRS resources in the first SRS resource set.
  • the network device can dynamically indicate the granularity of the SRS resource set.
  • the network device may indicate that all SRS resources in the first SRS resource set are not used for SRS transmission through MAC CE signaling or a reserved bit in DCI signaling, or that all SRS resources in the first SRS resource set are not used for SRS transmission. Used for SRS transmission.
  • the network device may also indicate that all SRS resources in the first SRS resource set are not used for SRS transmission through an invalid value of an existing information field in MAC CE signaling or DCI signaling, or a reserved value, or, All SRS resources in the first SRS resource set are used for SRS transmission.
  • the first indication field may be 1 bit.
  • the first value of the 1 bit indicates that all SRS resources in the first SRS resource set are used for transmission
  • the second value indicates that all SRS resources in the first SRS resource set are not used for transmission.
  • the first value of the 1 bit indicates that all SRS resources in the first SRS resource set are used for transmission
  • the second value indicates that there is at least one second SRS resource not used for transmission in the first SRS resource set
  • the at least one second SRS resource is determined according to the indication information of the at least one second SRS resource, or the at least one second SRS resource is determined according to the first SRS resource.
  • the value of the 1 bit is the second value indicating that all SRS resources in the first SRS resource set are not used for transmission
  • the value of the 1 bit is the first value indicating that there is at least one first SRS resource used for transmission in the first SRS resource set
  • the at least one first SRS resource is determined according to the indication information of the at least one first SRS resource.
  • the first value is 1 and the second value is 0, or the first value is 0 and the second value is 1.
  • the first indication information includes at least one of the following:
  • the network device may indicate an SRS port of an SRS resource not used for SRS transmission, and/or, an SRS port of an SRS resource used for SRS transmission.
  • the network device can dynamically indicate the granularity of the SRS port.
  • the network device flexibly indicates the SRS port used for SRS transmission or the SRS port not used for SRS transmission through the first indication information, and can turn off part of the transmitting antenna in some scenarios to reduce the power consumption of the terminal device, or realize the terminal device from A transition from one antenna switching mechanism to another.
  • the network device when the network device only indicates the SRS port of the SRS resource that is not used for SRS transmission, then other SRS ports of the SRS resource are used for SRS transmission.
  • the network device when the network device only indicates the SRS port of the SRS resource used for SRS transmission, other SRS ports of the SRS resource are not used for SRS transmission.
  • the indication information of the at least one first SRS port may be the port number and port index of the at least one first SRS port, or, all of the at least one first SRS port included in the third SRS resource
  • the number or serial number in the SRS port is not limited in this application.
  • the indication information of the at least one second SRS port may be the port number and port index of the at least one second SRS port, or the at least one second SRS port among all the SRS ports included in the third SRS resource
  • the number, or serial number, etc., the present application is not limited thereto.
  • the first indication information may include indication information of the at least one first SRS port, which is beneficial to reduce signaling overhead.
  • the first indication information may include the indication information of the at least one second SRS port, which helps reduce signaling overhead.
  • the network device indicates the at least one first SRS port and/or the at least one second SRS port in a bitmap manner.
  • the number of the at least one first SRS port and/or the at least one second SRS port is relatively large or the port number is relatively long, it is indicated in a bitmap manner, which helps reduce signaling overhead.
  • the first indication information includes a second bitmap
  • the second bitmap includes a plurality of bits
  • each bit corresponds to an SRS port of the third SRS resource
  • the value of each bit is used to indicate the Whether the corresponding SRS port of the three SRS resources is used for SRS transmission.
  • a value of 1 indicates that the corresponding SRS port is used for SRS transmission
  • a value of 0 indicates that the corresponding SRS port is not used for SRS transmission.
  • a value of 0 indicates that the corresponding SRS port is used for SRS transmission
  • a value of 1 indicates that the corresponding SRS port is not used for SRS transmission.
  • the second bitmap may include 4 bits (B3-B0), each bit corresponds to an SRS port, then if the second The bitmap is 0011, a bit value of 1 indicates that the corresponding SRS port is used for SRS transmission, and a value of 0 indicates that the corresponding SRS port is not used for SRS transmission, and the second bitmap indicates that SRS port 0 to SRS port 1 are used for For SRS transmission, SRS port 2 to SRS port 3 are not used for SRS transmission.
  • the first indication information may be used to indicate that all SRS ports of one SRS resource are not used for SRS transmission, or all SRS ports of one SRS resource are used for SRS transmission.
  • the first indication information includes a second indication field
  • the second indication field is used to indicate that all SRS ports of the third SRS resource in the first SRS resource set are not used for SRS transmission, or, the second indication field All SRS ports of the three SRS resources are used for SRS transmission.
  • An independent indication field indicates that all SRS ports of an SRS resource are used for SRS transmission, or none are used for SRS transmission. In this way, it is not necessary to separately indicate each SRS port, which is beneficial to reduce signaling overhead.
  • the network device may indicate that all SRS ports of the third SRS resource are not used for SRS transmission through MAC CE signaling or reserved bits in DCI signaling, or that all SRS ports of the third SRS resource Both are used for SRS transmission.
  • the network device may also use an invalid value of an existing information field in MAC CE signaling or DCI signaling, or a reserved value to indicate that all SRS ports of the third SRS resource are not used for SRS transmission, or, All SRS ports of the third SRS resource are used for SRS transmission.
  • the second indication field may be 1 bit.
  • the third value of the 1 bit indicates that all SRS ports of the third SRS resource are used for transmission
  • the fourth value indicates that all SRS ports of the third SRS resource are not used for transmission.
  • the value of the 1 bit indicates that all SRS ports of the third SRS resource are used for transmission, and the value of the 1 bit indicates that there is at least one second SRS port not used for transmission in the third SRS resource,
  • the at least one second SRS port is determined according to the indication information of the at least one second SRS port, or the at least one second SRS port is determined according to the first SRS port.
  • the value of the 1 bit is the fourth value indicating that all SRS ports of the third SRS resource are not used for transmission, and the value of the 1 bit is the third value indicating that there is at least one first SRS port used for transmission in the third SRS resource,
  • the at least one first SRS port is determined according to the indication information of the at least one first SRS port.
  • the third value is 1 and the fourth value is 0, or the third value is 0 and the fourth value is 1.
  • the first indication information may further include: indication information of the at least one third SRS resource.
  • the above-mentioned ports and indication information may be specific to specific SRS resources.
  • the above-mentioned port indication information is by default directed to all SRS resources in the first SRS resource set , or, for all SRS resources in the set of all SRS resources.
  • the indication information of the third SRS resource may be an identity (Identity, ID) and index of the third SRS resource, or a serial number or serial number of the third SRS resource in the first SRS resource set, etc., This application is not limited thereto.
  • the first indication information further includes indication information of the first SRS resource set.
  • the indication information of the first SRS resource set may be the ID and index of the first SRS resource set, or the serial number or serial number of the first SRS resource in multiple SRS resource sets, etc. This application does not limited to this.
  • the above-mentioned SRS resource indication information and/or port indication information may be specific to a specific SRS resource set, and in other embodiments, in the case where the SRS resource indication information and/or port indication information corresponding to the SRS resource set is not configured
  • the above SRS resource indication information and/or port indication information is for a specific SRS resource set (for example, the first SRS resource set), or for all SRS resource sets.
  • the first information may further include second indication information, the second indication information is used to indicate the application object of the first indication information, for example, the second indication information is used to indicate The serving cell and/or the bandwidth part BWP corresponding to the first indication information.
  • the second indication information may include ID (serving cell ID) or serving cell index (serving cell index) of one or more serving cells.
  • the first indication information may be applied to the serving cell corresponding to the serving cell ID or serving cell index.
  • the first indication information is applied to other serving cells except the serving cell corresponding to the serving cell ID or the serving cell index.
  • the second indication information may include one or more bandwidth part (BandWidth Part, BWP) IDs or BWP indexes.
  • the first indication information may be applied to the uplink BWP corresponding to the BWP ID or the BWP index.
  • the first indication information is applied to other uplink BWPs except the uplink BWP corresponding to the BWP ID or BWP index.
  • the first indication information corresponds to all serving cells in the first serving cell list, that is, the first indication information can be applied to the first serving cell list. All serving cells in the first serving cell list, where the first serving cell list is used to indicate at least one serving cell.
  • the serving cell can also be replaced by a component carrier (Component Carrier, CC), then the second indication information can be used to indicate the carrier corresponding to the first indication information, and the first serving cell list can be replaced by First carrier list. Therefore, in the subsequent description, the component carrier and the serving cell are often used equally, or the carrier and the cell are used equally, and the two may be replaced with each other.
  • Component Carrier Component Carrier
  • the network device can perform dynamic indication of SRS resources on multiple carriers by sending the first information once, so it is not necessary to perform a separate dynamic indication of SRS resources for each carrier, which is beneficial to reduce terminal power consumption and signaling overhead.
  • the first serving cell list may include one or more serving cell IDs (or serving cell indexes), or may include one or more component carrier indications or identifiers.
  • the first serving cell list may be configured by the network device, or pre-configured.
  • the network device may configure the first serving cell list through RRC signaling.
  • the terminal device can use the same antenna switching configuration, therefore, on the serving cells in the first serving cell list, the terminal device can use the same antenna switching dynamic instruction SRS transmission can minimize terminal power consumption.
  • the first indication information corresponds to all carriers in the same frequency band (band, such as intra-band) or all cells in the same frequency band (band, such as intra-band).
  • the network device sends the first information once, and can perform SRS resource dynamic indication on multiple carriers (or cells) on one band, so it is not necessary to perform separate SRS resource dynamics on each carrier (or cell) on one band Instructions are beneficial to reduce terminal power consumption and reduce signaling overhead.
  • the second indication information also includes frequency band information.
  • the first indication information is applied to all carriers in the frequency band corresponding to the frequency band information.
  • the method 200 further includes:
  • the terminal device sends second information to the network device, where the second information includes third indication information, and the third indication information is used to indicate at least one of the following: recommended antenna switching configuration, recommended number of receiving antennas, recommended number of transmit antennas.
  • the recommended number of receiving antennas may be the number of receiving antennas used for antenna switching, or the number of antennas used for data reception, or the number of antennas used for downlink control channel reception, or the number of antennas used for data reception and downlink control channel reception number of antennas.
  • the suggested number of transmit antennas may be the number of transmit antennas used for antenna switching, or the number of antennas used for data transmission, or the number of antennas used for uplink control channel transmission, or the number of antennas used for data transmission and uplink control channel transmission number of antennas.
  • the third indication information is used to indicate at least one of the following:
  • the desired antenna switching configuration of the terminal device the desired number of receiving antennas, and the desired number of transmitting antennas.
  • the desired antenna switching configuration of the terminal device may include but not limited to at least one of the following:
  • the number of receiving antennas expected by the terminal device may include but not limited to at least one of the following: 1, 2, 4, 6, and 8.
  • the transmit antenna desired by the terminal device may include but not limited to at least one of the following: 1, 2, 4, and 8.
  • the terminal device can indicate to the network device the desired antenna switching mode according to its own capability or transmission requirements, so that the network device can properly configure the terminal device to optimize the configuration of the terminal device or meet the requirements of the terminal device.
  • the terminal device may send the second information through any uplink signaling or uplink message, which is not limited in the present application.
  • the second information is carried by at least one of the following:
  • MAC CE Uplink Control Information (UCI), Physical Uplink Control Channel (PUCCH).
  • UCI Uplink Control Information
  • PUCCH Physical Uplink Control Channel
  • the second information further includes fourth indication information, where the fourth indication information is used to indicate an application object corresponding to the third indication information.
  • the fourth indication information is used to indicate the serving cell and/or BWP corresponding to the third indication information.
  • the fourth indication information may include one or more serving cell IDs or serving cell indexes.
  • the third indication information may be applied to the serving cell corresponding to the serving cell ID or serving cell index.
  • the third indication information is applied to other serving cells except the serving cell corresponding to the serving cell ID or the serving cell index.
  • the fourth indication information may include one or more component carrier indications or identifications
  • the third indication information may be applied to the one or more component carrier indications or identifications of serving cells on corresponding carriers.
  • the third indication information is applied to serving cells on other carriers except one or more component carrier indications or identities.
  • the third indication information may be defaulted to correspond to the current serving cell.
  • the fourth indication information may include one or more BWP IDs or BWP indexes.
  • the third indication information may be applied to the uplink BWP corresponding to the BWP ID or BWP index.
  • the first indication information is applied to other uplink BWPs except the uplink BWP corresponding to the BWP ID or BWP index.
  • the third indication information may be defaulted to correspond to the currently activated BWP.
  • the method 200 further includes:
  • the terminal device sends third information to the network device, where the third information includes fifth indication information, and the fifth indication information is used to indicate at least one of the following:
  • a set of SRS resources not used for transmission suggested by the terminal device is a set of SRS resources not used for transmission suggested by the terminal device
  • the terminal device suggests not to use the SRS resource for transmission
  • the SRS port suggested by the terminal device for transmission is the SRS port suggested by the terminal device for transmission.
  • the terminal device may suggest the SRS resource set granularity, and/or the SRS resource granularity, and/or the transmission status indication of the SRS port granularity to the network device.
  • the terminal device may send the desired SRS resource dynamic indication to the network device.
  • the SRS port not used for transmission suggested by the terminal device may be an SRS port not used for transmission corresponding to the SRS resource suggested by the terminal device for transmission, or may also be an SRS port not used for transmission suggested by the terminal device SRS ports not used for transmission corresponding to all SRS resources in the suggested SRS resource set for transmission.
  • the SRS port not used for transmission suggested by the terminal device may correspond to a specific SRS resource, or may correspond to all SRS resources in the SRS resource set.
  • the SRS port for transmission suggested by the terminal device may be the SRS port for transmission corresponding to the SRS resource for transmission suggested by the terminal device, or may be SRS ports used for transmission corresponding to all SRS resources in the suggested SRS resource set for transmission.
  • the SRS port suggested by the terminal device for transmission may correspond to a specific SRS resource, or may correspond to all SRS resources in the SRS resource set.
  • the terminal device may indicate to the network device the desired SRS resource dynamic indication according to its own capability or transmission requirements, so that the network device may properly configure the terminal device to meet the requirements of the terminal device.
  • the fifth indication information may include:
  • the indication information of the SRS resource set that is not used for transmission suggested by the terminal device such as the ID and index of the SRS resource set, or the number or sequence number of the SRS resource in multiple SRS resource sets, etc., the present application is not limited thereto.
  • the fifth indication information may include:
  • the indication information of the SRS resource set used for transmission suggested by the terminal device such as the ID and index of the SRS resource set, or the number or sequence number of the SRS resource in multiple SRS resource sets, etc., the present application is not limited thereto.
  • the fifth indication information may include: indication information of an SRS resource not used for transmission suggested by the terminal device, such as the ID and index of the SRS resource, or the number of the SRS resource in the corresponding SRS resource set , or serial number, etc., the present application is not limited thereto.
  • the fifth indication information may include:
  • the indication information of the SRS resource used for transmission suggested by the terminal device such as the ID and index of the SRS resource, or the serial number or serial number of the SRS resource in the corresponding SRS resource set, the present application is not limited thereto.
  • the terminal device may also indicate the suggested SRS resources for transmission and the suggested SRS resources not used for transmission in an SRS resource set through a bitmap.
  • indication methods refer to the relevant description of the first bitmap. For the sake of brevity, no more details are given here.
  • the fifth indication information may include:
  • the indication information of the SRS port used for transmission suggested by the terminal device such as the port number and index of the SRS port, or the number or sequence number of the SRS port in the corresponding SRS resource, etc., the present application is not limited thereto.
  • the fifth indication information may include:
  • the indication information of the SRS port not used for transmission suggested by the terminal device such as the port number and index of the SRS port, or the number or serial number of the SRS port in the corresponding SRS resource, etc., the present application is not limited thereto.
  • the terminal device may also indicate the suggested SRS port for transmission and the suggested SRS port not used for transmission in an SRS resource through a bitmap.
  • the specific indication method refer to the relevant description of the second bitmap. For the sake of brevity, no more details are given here.
  • the terminal device may send the third information through any uplink signaling or uplink message, which is not limited in the present application.
  • the third information is carried by at least one of the following: MAC CE, UCI, and PUCCH.
  • the third information further includes sixth indication information, where the sixth indication information is used to indicate the application object corresponding to the fifth indication information.
  • the sixth indication information is used to indicate the serving cell and/or BWP corresponding to the fifth indication information.
  • the sixth indication information may include one or more serving cell IDs or serving cell indexes.
  • the fifth indication information may be applied to the serving cell corresponding to the serving cell ID or serving cell index.
  • the fifth indication information may be applied to other serving cells except the serving cell corresponding to the serving cell ID or serving cell index.
  • the sixth indication information may include one or more component carrier indications or identifications
  • the fifth indication information may be applied to the one or more component carrier indications or identifications of serving cells on corresponding carriers.
  • the fifth indication information is applied to serving cells on other carriers except one or more component carrier indications or identities.
  • the fifth indication information may be defaulted to correspond to the current serving cell.
  • the sixth indication information may include one or more BWP IDs or BWP indexes.
  • the fifth indication information may be applied to the uplink BWP corresponding to the BWP ID or the BWP index.
  • the fifth indication information may be applied to other uplink BWPs except the uplink BWP corresponding to the BWP ID or BWP index.
  • the fifth indication information may be defaulted to correspond to the currently activated BWP.
  • the method 200 also includes:
  • the terminal device reports first capability information to the network device, where the first capability information indicates that the terminal device supports at least one of the first information, antenna switching dynamic indication, and SRS resource dynamic indication Perform SRS transmission.
  • the terminal device can indicate to the network device that it supports dynamic indication of SRS resources, or in other words, support the network device to change the parameters of the SRS resource set by using the dynamic indication of SRS resources.
  • the network device can indicate the change of the transmission state of the SRS resource set parameters, or the transmission state of the SRS resource set parameters after the change, without reconfiguring the SRS resource set parameters through RRC signaling, so that the terminal device can
  • the dynamic indication of SRS resources for SRS transmission is beneficial to reduce the delay of changing the antenna switching mechanism, realize the rapid adjustment of SRS resource set parameters, and reduce signaling overhead.
  • the terminal device may send the first capability information through any uplink signaling or uplink message, which is not limited in the present application.
  • the first capability information is carried by at least one of the following: MAC CE and RRC signaling.
  • the first capability information may also be used to indicate a target frequency band and/or a target carrier, and serving cells on the target frequency band and/or serving cells on the target carrier may be configured in the same serving cell list.
  • the network device can know that the terminal device can use the same antenna on the target frequency band, so that the aforementioned first serving cell list or first carrier list can be generated based on the target frequency band information .
  • the network device can know that the target carrier of the terminal device on the target frequency band can use the same antenna, so that the aforementioned first A list of serving cells, or a list of first carriers.
  • the configuration granularity of the first capability information includes at least one of the following:
  • frequency band frequency band combination, each frequency band in the frequency band combination, each carrier on each frequency band in the frequency band combination, frequency band range, user equipment.
  • the first capability information is reported for a frequency band (band), that is, different frequency bands may independently report the corresponding first capability information. That is, the first capability information is per band (per band) granularity.
  • the terminal device independently reports the corresponding first capability information for different frequency bands, which improves the flexibility of the terminal device to report the first capability information. For example, the terminal device can report that the first frequency band supports SRS transmission according to the dynamic indication of SRS resources. Other frequency bands do not support dynamic SRS resource indication for SRS transmission, so that more terminal devices can support SRS transmission according to the dynamic SRS resource indication.
  • the first capability information is reported for a frequency band combination (band combination, BC), that is, different frequency band combinations can independently report the corresponding first capability information. That is, the first capability information is per frequency band combination (per BC) granularity.
  • the terminal device independently reports the corresponding first capability information for different frequency band combinations, which improves the flexibility of the terminal device to report the first capability information. For example, the terminal device can report that the first frequency band combination supports SRS transmission according to the dynamic indication of SRS resources. , other frequency band combinations do not support SRS resource dynamic indication for SRS transmission, so that more terminal devices can support SRS transmission according to the SRS resource dynamic indication.
  • the first capability information is reported independently for each frequency band in the frequency band combination, that is, each frequency band in a different frequency band combination may independently report the corresponding first capability information. That is, the first capability information is per band per BC granularity.
  • the terminal device independently reports the corresponding first capability information for each frequency band in different frequency band combinations, which improves the flexibility of the terminal device to report the first capability information. For example, the terminal device can report that the first frequency band combination does not support SRS Dynamic resource indication for SRS transmission, and SRS resource dynamic indication for SRS transmission is supported on a certain frequency band in the second frequency band combination, so that more terminal devices can support SRS transmission according to the SRS resource dynamic indication.
  • the first capability information is reported independently for each carrier in each frequency band in the frequency band combination, that is, each carrier in each frequency band in different frequency band combinations may independently report the corresponding first capability information. That is, the first capability information is per frequency band combination per frequency band per carrier (per CC per band per BC) granularity.
  • the terminal device independently reports the corresponding first capability information for each carrier in each frequency band in different frequency band combinations, which improves the flexibility of the terminal device to report the first capability information.
  • the terminal device can report the first capability information in the first frequency band combination It does not support SRS transmission based on dynamic indication of SRS resources, but supports dynamic indication of SRS resources for SRS transmission on a certain carrier in a certain frequency band in the second frequency band combination, so that more terminal devices can support dynamic SRS transmission based on SRS resources. Indicates SRS transmission.
  • the first capability information is reported for a frequency range (Frequency range, FR), that is, different FRs can independently report the corresponding first capability information. That is, the first capability information is per FR (per FR) granularity, for example, the first frequency range (FR1) and the second frequency range (FR2) independently report the corresponding first capability information.
  • the terminal device independently reports the corresponding first capability information for different FRs, which improves the flexibility of the terminal device to report the first capability information. For example, the terminal device may not support SRS transmission according to the dynamic indication of SRS resources on FR1, but on FR2 The dynamic SRS resource indication is not supported for SRS transmission, so that more terminal devices can support SRS transmission according to the SRS resource dynamic indication.
  • the method 200 further includes:
  • the terminal device performs SRS transmission according to the first information.
  • the terminal device performs SRS transmission on the at least one SRS resource in the first SRS resource set; and/or
  • the terminal device performs SRS transmission on at least one first SRS port of the third SRS resource.
  • the terminal device may perform SRS transmission according to the resource type of the first SRS resource set.
  • the terminal device may perform SRS transmission according to the period and time slot offset of the SRS signal.
  • the resource type of the first SRS resource set is aperiodic, and the terminal device may perform SRS transmission based on trigger signaling (for example, DCI) of the network device.
  • trigger signaling for example, DCI
  • the 2T4R antenna switching is taken as an example to describe the specific implementation of the first information, but the present application is not limited thereto.
  • the network device configures the first SRS resource set for the terminal device through RRC signaling for 2T4R antenna switching, wherein the first SRS resource set includes two SRS resources (respectively denoted as SRS resource A and SRS resource B), each SRS resource includes 2 SRS ports (respectively marked as SRS port A and SRS port B).
  • the usage (usage) domain (field or field) in the RRC information element (Information Element, IE) corresponding to the first SRS resource set is set to "antennaSwitching", indicating that the first SRS resource set is used for the antenna switch.
  • the resourceType in the SRS-ResourceSet parameter corresponding to the first SRS resource set is configured as one of the following: aperiodic (aperiodic), semi-persistent (semiPersistent), and periodic (periodic).
  • the terminal device When the terminal device performs SRS transmission, it performs SRS transmission according to the two SRS resources.
  • the network device can indicate the transmission status of the SRS resource granularity.
  • the terminal device receives first information sent by the network device through MAC CE signaling, the first information includes first indication information, and the first indication information is used to indicate one of the following:
  • Example 1 The first indication information indicates that SRS resource A is used for transmission.
  • Example 2 The first indication information indicates that the SRS resource B is not used for transmission.
  • Example 3 The first indication information indicates that SRS resource A is used for transmission, and SRS resource B is not used for transmission.
  • the terminal device when the terminal device performs SRS transmission, it only performs SRS transmission according to SRS resource A, or in other words, only transmits SRS resource A.
  • the transmission performed by the terminal device according to the first SRS resource set is equivalent to 2T2R transmission.
  • the terminal device may indicate through the second information that the desired antenna switching configuration is 2T2R, and the network device may pass
  • the first information indicates that one of the two SRS resources is not used for SRS transmission, that is, indicates the change of the transmission state of the SRS resource, or the transmission state of the SRS resource after the change, without reconfiguring the SRS resource set through RRC signaling parameter, which is beneficial to reduce signaling overhead.
  • the terminal device may use the third information to indicate that the SRS resource not recommended for transmission is SRS resource B, Or the SRS resource suggested for transmission is SRS resource A, or, only one of the two SRS resources is suggested for transmission, then the network device may indicate one of the two SRS resources through the first information (such as SRS Resource A) is used for SRS transmission, that is, indicating the change of the transmission state of the SRS resource, or the transmission state of the SRS resource after the change, without reconfiguring the SRS resource set parameters through RRC signaling, which is conducive to reducing signaling overhead.
  • the first information such as SRS Resource A
  • the terminal device may also receive a first serving cell list configured by the network device through RRC signaling, where the first serving cell list is used to indicate serving cell 1 and serving cell 3 . If the first information further includes second indication information for indicating serving cell 1, the first indication information is applied to all serving cells in the serving cell list corresponding to serving cell 1, that is, to serving cell 1 and serving cell 3 .
  • the first indication information may be indicated in the following manner:
  • Mode 1 Suppose the ID of the first SRS resource set is Z, and SRS resource A is the first SRS resource in the SRS resource set. Then, the first indication information may indicate that the first resource in the SRS resource set with the ID of Z in the serving cell 3 is used for SRS transmission.
  • Method 2 Suppose the ID of the first SRS resource set is Z, the ID of SRS resource A is ID1, and the ID of SRS resource B is DI2. Then, the first indication information may indicate that the SRS resource whose ID is ID1 in the serving cell 3 is used for SRS transmission.
  • the first indication information may be used to indicate the number of the SRS resource used for SRS transmission in the corresponding SRS resource set, or the ID of the SRS resource.
  • the first indication information may be indicated in the following manner:
  • Mode 1 Suppose the ID of the first SRS resource set is Z, and SRS resource B is the second SRS resource in the SRS resource set. Then, the first indication information may indicate that the second resource in the SRS resource set with the ID of Z in the serving cell 3 is not used for SRS transmission.
  • Method 2 Suppose the ID of the first SRS resource set is Z, the ID of SRS resource B is ID2, and the ID of SRS resource B is DI2. Then, the first indication information may indicate that the SRS resource whose ID is ID2 in the serving cell 3 is not used for SRS transmission.
  • the first indication information may be used to indicate the number of the SRS resource not used for SRS transmission in the corresponding SRS resource set, or the ID of the SRS resource.
  • the MAC CE signaling may include:
  • Indication information of SRS resource A indicating that SRS resource A is used for SRS transmission.
  • the first information may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • FIG. 4 is a schematic diagram of the format of a MAC CE according to Example 1.
  • the cell ID in Figure 4 corresponds to the previous cell indication information
  • the BWP ID corresponds to the previous BWP indication information
  • the SRS resource set ID corresponds to the indication information of the first SRS resource set
  • the SRS resource ID corresponds to the indication information of SRS resource A
  • R Indicates a reserved bit.
  • this R can also be used to indicate other information.
  • the usage of the SRS resource set indicated by the SRS resource set ID is set to "antennaSwitching".
  • the MAC CE of the example in Figure 4 can contain multiple SRS resource ID fields.
  • Fig. 5 is a schematic diagram of the format of a MAC CE indicating that two SRS resources are used for transmission as an example.
  • the MAC CE format can be similarly extended. Taking two SRS resource sets as an example, as shown in Figure 6, the MAC CE can include:
  • SRS Resource ID 1-X used to indicate that the SRS resource in the SRS resource set indicated by SRS resource set ID 1 is used for transmission.
  • SRS Resource ID 2-X is used to indicate that the SRS resource in the SRS resource set indicated by SRS resource set ID 2 is used for transmission.
  • the MAC CE signaling may include:
  • Indication information of SRS resource B indicating that SRS resource B is used for SRS transmission.
  • the first information may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • the network device can use the similar MAC CE format in Figure 4 to Figure 6 to indicate the SRS resources not used for transmission, the difference is that the SRS resource ID corresponds to the indication information of SRS resource B, that is, the SRS not used for SRS transmission The ID of the resource.
  • the following contents may be included in the MAC CE signaling:
  • the indication information of SRS resource A which indicates that SRS resource A is used for SRS transmission
  • the indication information of SRS resource B indicates that SRS resource B is not used for SRS transmission.
  • the MAC CE signaling may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • the network device may indicate the SRS resources used for SRS transmission and those not used for SRS transmission in an SRS resource set in a bitmap manner.
  • Fig. 7 is a schematic diagram of the format of MAC CE indicating SRS resources used for SRS transmission and not used for SRS transmission through a bitmap. Wherein, the cell ID corresponds to the above cell indication information;
  • the BWP ID corresponds to the BWP indication information above;
  • the SRS resource set ID corresponds to the indication information of the first SRS resource set, optionally, the usage of the SRS resource set indicated by the SRS resource set ID is set to 'antennaSwitching';
  • C1-C8 respectively correspond to the first bitmap above. Indicates whether the SRS resources in an SRS resource set are used for transmission by means of a bitmap;
  • R represents a reserved bit, and optionally, this R may also be used to indicate other information.
  • Ci corresponds to the i-th SRS resource in the first SRS resource set.
  • Ci corresponds to the 8-ith SRS resource in the first SRS resource set.
  • Ci is related to the size of the SRS resource ID.
  • the IDs corresponding to the SRS resources in the first SRS resource set correspond to C1-C8 in descending order.
  • IDs corresponding to SRS resources in the first SRS resource set correspond to C1-C8 in ascending order.
  • C1 corresponds to the SRS resource with the smallest ID in the first SRS resource set
  • C8 corresponds to the SRS resource with the largest ID in the first SRS resource set.
  • C1 corresponds to the SRS resource with the largest ID in the first SRS resource set
  • C8 corresponds to the SRS resource with the smallest ID in the first SRS resource set.
  • the value of Ci is used to indicate whether the corresponding SRS resource is used for transmission, for example, a value of 1 indicates that the corresponding SRS resource is used for transmission, and a value of 0 indicates that the corresponding SRS resource is not used for transmission, or the value of A value of 1 indicates that the corresponding SRS resource is not used for transmission, and a value of 1 indicates that the corresponding SRS resource is used for transmission.
  • the actual number of bits carrying information in C1-C8 may be determined according to the number of SRS resources included in the first SRS resource set. For example, if the first SRS resource set includes 4 SRS resources, the four bits of C1-C8 (for example, C1-C4, or C5-C8) carry information, and the other bits are ignored, or in other words, do not need read.
  • C1-C8 for example, C1-C4, or C5-C8
  • the MAC CE may include a first indication field, and all SRS resources in the first SRS resource set are used for transmission, or none are used for transmission.
  • the first indication field can be implemented by an R field in the MAC CE.
  • the R field can be recorded as an F field, and the value of the F field is used to indicate all SRSs in the first SRS resource set Resources are either used for transfers, or neither are used for transfers.
  • taking the first value indicates that all SRS resources in the first SRS resource set are used for transmission
  • taking the second value indicates that all SRS resources in the first SRS resource set are not used for transmission
  • the F field is 1 bit, the first value is 1, and the second value is 0.
  • Figure 8 is a schematic diagram of the MAC CE format including the first indication domain (i.e. the F domain).
  • the MAC CE may not include the words in Figure 7. Section 3 (oct3).
  • the F field takes a first value to indicate that all SRS resources in the first SRS resource set are used for transmission.
  • the MAC CE may take a second value as shown in FIG. 8 to indicate that the first SRS resource In an SRS resource set, there are SRS resources used for transmission, or there are SRS resources not used for transmission.
  • bitmaps can be used to indicate which SRS resources are used for transmission and which SRS resources are not used for transmission.
  • the MAC CE format can be as shown in Figure 9, wherein, the meaning of each bit in byte 3 refers to Figure 7 related instructions in .
  • the MAC CE format can also be as shown in the foregoing Figure 4 or Figure 5.
  • FIG. 8 and FIG. 9 are only examples, and the F domain can also be implemented by using other R domains in the MAC CE, which is not limited in this application.
  • each SRS resource set corresponds to a bitmap, wherein C1-C8 in the row corresponding to byte 3 (Oct3) is used to indicate the SRS resource set ID 1 indicates Whether the SRS resource in the SRS resource set is used for transmission, C1-C8 in the row corresponding to byte 5 (Oct5) is used to indicate whether the SRS resource in the SRS resource set indicated by SRS resource set ID 2 is used for transmission.
  • each SRS resource set corresponds to a bitmap, wherein C1-C8 in the row corresponding to byte 3 (Oct3) is used to indicate SRS resource set ID 1 Whether the SRS resource in the indicated SRS resource set is used for transmission, C1-C8 in the row corresponding to byte 5 (Oct5) is used to indicate whether the SRS resource in the SRS resource set indicated by SRS resource set ID 2 is used for transmission.
  • the network device can perform SRS port granularity transmission state indication.
  • the terminal device receives first information sent by the network device through MAC CE signaling, the first information includes first indication information, and the first indication information is used to indicate one of the following:
  • Example 4 The first indication information indicates the SRS port A used for transmission.
  • Example 5 The first indication information indicates the SRS port B not used for transmission.
  • Example 6 The first indication information indicates SRS port A used for transmission, and indicates SRS port B not used for transmission.
  • the terminal device transmits the SRS, it only transmits the SRS from the SRS port A.
  • the SRS transmission performed by the terminal device according to the first SRS resource set is equivalent to 1T2R transmission. That is, it is equivalent to the SRS resource of a single port for each transmission.
  • the terminal device may indicate through the second information that the desired antenna switching configuration is 1T2R, and the network device may pass
  • the first information indicates that an SRS port in the SRS resource is not used for SRS transmission, that is, indicates a change in the transmission state of the SRS port, or the transmission state of the SRS port after the change, without reconfiguring the SRS resource set parameters through RRC signaling, It is beneficial to reduce signaling overhead.
  • the terminal device may use the third information to indicate that the SRS port that is not recommended for transmission is SRS resource B, Or the SRS port suggested for transmission is SRS port A, or, it is suggested that only one of the two SRS ports is used for transmission, then the network device can indicate one of the two SRS ports through the first information (such as SRS Port A) is used for SRS transmission, that is, indicating the change of the transmission state of the SRS port, or the transmission state of the SRS port after the change, without reconfiguring the SRS resource set parameters through RRC signaling, which is conducive to reducing signaling overhead.
  • the first information such as SRS Port A
  • the terminal device may also receive a first serving cell list configured by the network device through RRC signaling, where the first serving cell list is used to indicate serving cell 1 and serving cell 3 . If the first information further includes second indication information for indicating serving cell 1, the first indication information is applicable to all serving cells in the serving cell list corresponding to serving cell 1, that is, serving cell 1 and serving cell 3.
  • the first indication information may indicate that the SRS port A of the SRS resource in the SRS resource set with the ID of Z in the serving cell 3 is used for SRS transmission.
  • the MAC CE signaling may include:
  • Indication information of SRS port A indicating that SRS port A is used for SRS transmission.
  • the first information may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • Indication information of the SRS resource corresponding to the SRS port such as the SRS resource ID;
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • FIG. 12 is a schematic diagram of the format of a MAC CE according to Example 4.
  • the cell ID in Figure 12 corresponds to the previous cell indication information
  • the BWP ID corresponds to the previous BWP indication information
  • the SRS resource set ID corresponds to the indication information of the first SRS resource set
  • the SRS port indication corresponds to the indication information of the SRS port A
  • R Indicates a reserved bit.
  • this R can also be used to indicate other information.
  • the usage of the SRS resource set indicated by the SRS resource set ID is set to 'antennaSwitching';
  • the MAC CE format in Figure 12 can be similarly extended, taking two SRS resource sets as an example, as shown in Figure 13, the MAC CE can include:
  • the SRS port indication 1 is used to indicate the SRS port used for transmission of the SRS resource in the SRS resource set indicated by the SRS resource set ID 1.
  • the SRS port indication 2 is used to indicate the SRS port used for transmission of the SRS resource in the SRS resource set indicated by the SRS resource set ID 2.
  • the first information may include:
  • Indication information of SRS port B indicating that SRS port B is used for SRS transmission.
  • the first information may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • Indication information of the SRS resource corresponding to the SRS port B such as the SRS resource ID;
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • Example 5 the MAC CE format similar to that shown in Figure 12 to Figure 13 can be used to indicate the SRS port not used for transmission, the difference is that the SRS port indication corresponds to the SRS port not used for SRS transmission.
  • the MAC CE signaling contains the following content:
  • Indication information of SRS port A that is, indicating that SRS port A is used for SRS transmission
  • the indication information of the SRS port B indicates that the SRS port B is not used for SRS transmission.
  • the MAC CE signaling may also include at least one of the following information:
  • the cell indication information may be a cell ID, which is used to indicate the cell corresponding to the first indication information
  • the BWP indication information may be a BWP ID, which is used to indicate the uplink BWP corresponding to the first indication information;
  • SRS resource indication information corresponding to SRS port A and SRS port B such as SRS resource ID
  • the indication information of the first SRS resource set such as the SRS resource set ID.
  • the cell indication information and the BWP indication information may correspond to the foregoing second indication information.
  • the network device may indicate the SRS ports used for SRS transmission and those not used for SRS transmission in the SRS resource in a bitmap manner.
  • Example 6 may use the MAC CE format indication in FIG. 14 .
  • the meanings of the fields in Figure 14 are as follows:
  • the cell ID corresponds to the cell indication information above;
  • the BWP ID corresponds to the BWP indication information above;
  • the SRS resource set ID corresponds to the indication information of the first SRS resource set
  • P1 ⁇ P8 respectively correspond to the second bitmap above, and indicate whether all SRS ports included in an SRS resource are used for transmission through the bitmap mode;
  • R represents a reserved bit, and optionally, this R may also be used to indicate other information.
  • Pi corresponds to the i-th SRS port in the SRS resource.
  • Pi corresponds to the 8-ith SRS port in the SRS resource.
  • the value of Pi is used to indicate whether the corresponding SRS port is used for transmission, for example, a value of 1 indicates that the corresponding SRS port is used for transmission, a value of 0 indicates that the corresponding SRS port is not used for transmission, or a value of 1 indicates that the corresponding SRS port is not used for transmission, and a value of 1 indicates that the corresponding SRS port is used for transmission.
  • the number of bits actually carrying information in P1-P8 may be determined according to the number of SRS ports included in the SRS resource. For example, if the SRS resource includes 4 SRS ports, four bits of P1-P8 (for example, P1-P4, or P5-P8) carry information, and other bits are ignored, or do not need to be interpreted.
  • P1-P8 for example, P1-P4, or P5-P8
  • sequence of bits in FIG. 14 is only an example, and the sequence of P8-P1 may also be used, which is not limited in the present application.
  • the MAC CE signaling may include a second indication field, which is used to indicate that all SRS ports included in the SRS resource are used for transmission, or none of them are used for transmission.
  • the second indication field may be an R field in the MAC CE.
  • the R field may also be recorded as an F field, and the value of the F field is used to indicate that all SRS ports of the SRS resource are used for transmission, or neither is used for transmission.
  • taking the first value indicates that all SRS ports included in the SRS resource are used for transmission
  • taking the second value indicates that all SRS ports included in the SRS resource are not used for transmission.
  • the F field is 1 bit
  • the first value is 1, and the second value is 0.
  • the MAC CE including the second indication field may also adopt the format in FIG. 8 .
  • the F field takes the first value to indicate that all SRS ports of the SRS resource are used for transmission.
  • the MAC CE can be as shown in FIG.
  • the MAC CE format can be as shown in Figure 16.
  • FIG. 15 and FIG. 16 are only examples, and the F domain can also be implemented by using other R domains in the MAC CE, which is not limited in this application.
  • each SRS resource set corresponds to a bitmap, wherein P1-P8 in the row corresponding to byte 3 (Oct3) is used to indicate the SRS resource set ID 1 indicates Whether the SRS port included in the SRS resource in the SRS resource set is used for transmission, P1 ⁇ P8 in the row corresponding to byte 5 (Oct5) is used to indicate whether the SRS port of the SRS resource in the SRS resource set indicated by SRS resource set ID 2 is for transmission.
  • each SRS resource set corresponds to a bitmap, wherein P1-P8 in the row corresponding to byte 3 (Oct3) is used to indicate SRS resource set ID 1 Whether the SRS port of the SRS resource in the indicated SRS resource set is used for transmission, P1 ⁇ P8 in the row corresponding to byte 5 (Oct5) is used to indicate the SRS port of the SRS resource in the SRS resource set indicated by SRS resource set ID 2 Whether to use for transmission.
  • Embodiment 1 and Embodiment 2 above may be implemented independently, or may also be implemented in combination, for example, the foregoing Examples 1 to 3 may be combined with any of Examples 4 to 6.
  • the MAC CE format can carry the information in the above two embodiments, for example, the indication information of the SRS resource and the SRS port indication.
  • the MAC CE format can be flexibly adjusted according to the information content that needs to be carried, for example,
  • the format of the MAC CE carrying the SRS resource indication information and the SRS port indication information can be shown in Figure 19. It should be understood that the content of byte 3 in Figure 19 can be replaced by byte 3 in Figure 7, byte 3 in Figure 19 The content of 4 can be replaced by byte 3 in Figure 14.
  • the network device can dynamically indicate the changed SRS resource set parameters through the first information indicating the transmission status of the SRS resource set parameters, for example, the SRS resource set parameters that need to be changed due to the change of the antenna switching mechanism, without
  • the network device can dynamically indicate the changed SRS resource set parameters through the first information indicating the transmission status of the SRS resource set parameters, for example, the SRS resource set parameters that need to be changed due to the change of the antenna switching mechanism, without
  • RRC Radio Resource Control
  • Fig. 20 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to receive first information sent by the network device, where the first information includes first indication information, and the first indication information is used to indicate at least one of the following:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for SRS transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for SRS transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for SRS transmission.
  • the first information is carried by at least one of the following:
  • the communication unit 410 is also used to:
  • the resource type corresponding to the first SRS resource set in the first configuration information is aperiodic; or,
  • the resource type corresponding to the first SRS resource set in the first configuration information is one of the following: semi-persistent, periodic; or
  • the resource type corresponding to the first SRS resource set in the first configuration information is one of the following: aperiodic, semi-persistent, and periodic.
  • the first indication information includes a first indication field, and the first indication field is used to indicate that all SRS resources in the first SRS resource set are not used for SRS transmission, or, the All SRS resources in the first SRS resource set are used for SRS transmission.
  • the first indication information includes:
  • the indication information of the at least one first SRS resource includes: an ID of the at least one first SRS resource;
  • the indication information of the at least one second SRS resource includes: an ID of the at least one second SRS resource.
  • the first indication information indicates the at least one first SRS resource and/or the at least one second SRS resource in a bitmap manner.
  • the first indication information includes a first bitmap, and the first bitmap includes a plurality of bits, each bit corresponds to an SRS resource in the first SRS resource set, and each bit The value of is used to indicate whether the corresponding SRS resource is used for SRS transmission.
  • the first indication information includes at least one of the following:
  • the indication information of the at least one first SRS port includes: the port number of the at least one first SRS port;
  • the indication information of the at least one second SRS port includes: a port number of the at least one second SRS port.
  • the first indication information indicates the at least one first SRS port and/or the at least one second SRS port in a bitmap manner.
  • the first indication information includes a second bitmap
  • the second bitmap includes a plurality of bits, each bit corresponds to an SRS port of the third SRS resource, and each bit The value is used to indicate whether the corresponding SRS port of the third SRS resource is used for SRS transmission.
  • the first indication information includes a second indication field
  • the second indication field is used to indicate that all SRS ports of the third SRS resource in the first SRS resource set are not used for SRS transmission , or, all SRS ports of the third SRS resource are used for SRS transmission.
  • the first indication information further includes:
  • the first indication information further includes indication information of the first SRS resource set.
  • the first information further includes second indication information, and the second indication information is used to indicate the serving cell corresponding to the first indication information and/or the serving cell corresponding to the first indication information.
  • the first indication information corresponds to all serving cells in the first serving cell list, wherein the The first serving cell list is used to indicate at least one serving cell.
  • the first indication information corresponds to all carriers in the same frequency band.
  • the communication unit 410 is also used to:
  • the second information includes third indication information, where the third indication information is used to indicate at least one of the following: recommended antenna switching configuration, recommended number of receiving antennas, recommended number of transmit antennas.
  • the second information is carried by at least one of the following:
  • the second information further includes fourth indication information, and the fourth indication information is used to indicate the serving cell corresponding to the third indication information/or the serving cell corresponding to the third indication information The BWP.
  • the communication unit 410 is also used to:
  • the third information includes fifth indication information, where the fifth indication information is used to indicate at least one of the following:
  • a set of SRS resources not used for transmission suggested by the terminal device is a set of SRS resources not used for transmission suggested by the terminal device
  • the SRS port suggested by the terminal device for transmission is the SRS port suggested by the terminal device for transmission.
  • the third information is carried by at least one of the following:
  • the third information further includes sixth indication information, and the sixth indication information is used to indicate the serving cell corresponding to the fifth indication information and/or the sixth indication information. Corresponding BWP.
  • the communication unit 410 is also used to:
  • first capability information indicates that the terminal device supports SRS transmission according to at least one of the first information, antenna switching dynamic indication, and SRS resource dynamic indication.
  • the first capability information is sent through radio resource control RRC signaling and/or MAC CE.
  • the first capability information is also used to indicate the target frequency band and/or the target carrier, and the serving cell on the target frequency band and/or the serving cell on the target carrier can be configured in the same service in the district list.
  • the configuration granularity of the first capability information includes at least one of the following:
  • frequency band frequency band combination, each frequency band in the frequency band combination, each carrier on each frequency band in the frequency band combination, frequency band range, user equipment.
  • the communication unit 410 is also used to:
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to realize the For the sake of brevity, the corresponding process of the terminal device in the shown method 200 will not be repeated here.
  • Fig. 21 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 500 of FIG. 5 includes:
  • a communication unit 510 configured to send first information to the terminal device, where the first information includes first indication information, and the first indication information is used to indicate at least one of the following:
  • At least one first SRS resource in the first sounding reference signal SRS resource set is used for SRS transmission;
  • At least one second SRS resource in the first set of SRS resources is not used for SRS transmission;
  • At least one first SRS port of at least one third SRS resource in the first set of SRS resources is used for SRS transmission;
  • At least one second SRS port of at least one third SRS resource in the first SRS resource set is not used for SRS transmission.
  • the first information is carried by at least one of the following:
  • the communication unit 510 is also used to:
  • the resource type corresponding to the first SRS resource set in the first configuration information is aperiodic; or,
  • the resource type corresponding to the first SRS resource set in the first configuration information is one of the following: semi-persistent, periodic; or
  • the resource type corresponding to the first SRS resource set in the first configuration information is one of the following: aperiodic, semi-persistent, and periodic.
  • the first indication information includes a first indication field, and the first indication field is used to indicate that all SRS resources in the first SRS resource set are not used for SRS transmission, or, the All SRS resources in the first SRS resource set are used for SRS transmission.
  • the first indication information includes:
  • the indication information of the at least one first SRS resource includes: an ID of the at least one first SRS resource;
  • the indication information of the at least one second SRS resource includes: an ID of the at least one second SRS resource.
  • the first indication information indicates the at least one first SRS resource and/or the at least one second SRS resource in a bitmap manner.
  • the first indication information includes a first bitmap, and the first bitmap includes a plurality of bits, each bit corresponds to an SRS resource in the first SRS resource set, and each bit The value of is used to indicate whether the corresponding SRS resource is used for SRS transmission.
  • the first indication information includes at least one of the following:
  • the indication information of the at least one first SRS port includes: the port number of the at least one first SRS port;
  • the indication information of the at least one second SRS port includes: a port number of the at least one second SRS port.
  • the first indication information indicates the at least one first SRS port and/or the at least one second SRS port in a bitmap manner.
  • the first indication information includes a second bitmap
  • the second bitmap includes a plurality of bits, each bit corresponds to an SRS port of the third SRS resource, and each bit The value is used to indicate whether the corresponding SRS port of the third SRS resource is used for SRS transmission.
  • the first indication information further includes: indication information of the at least one third SRS resource.
  • the first indication information includes a second indication field
  • the second indication field is used to indicate that all SRS ports of the third SRS resource in the first SRS resource set are not used for SRS transmission , or, all SRS ports of the third SRS resource are used for SRS transmission.
  • the first indication information further includes indication information of the first SRS resource set. 17.
  • the first indication information corresponds to all serving cells in the first serving cell list, wherein the The first serving cell list is used to indicate at least one serving cell.
  • the first indication information corresponds to all carriers in the same frequency band.
  • the communication unit 410 is also used to:
  • the second information includes third indication information
  • the third indication information is used to indicate at least one of the following: a suggested antenna switching configuration, a suggested number of receiving antennas, Recommended number of transmit antennas.
  • the second information is carried by at least one of the following:
  • the second information further includes fourth indication information, and the fourth indication information is used to indicate the serving cell corresponding to the third indication information/or the serving cell corresponding to the third indication information The BWP.
  • the communication unit is also used for:
  • the third information includes fifth indication information, where the fifth indication information is used to indicate at least one of the following:
  • a set of SRS resources not used for transmission suggested by the terminal device is a set of SRS resources not used for transmission suggested by the terminal device
  • the SRS port suggested by the terminal device for transmission is the SRS port suggested by the terminal device for transmission.
  • the third information is carried by at least one of the following:
  • the third information further includes sixth indication information, and the sixth indication information is used to indicate the serving cell corresponding to the fifth indication information and/or the sixth indication information. Corresponding BWP.
  • the communication unit 510 is also used to:
  • the terminal device receiving first capability information reported by the terminal device, where the first capability information indicates that the terminal device supports SRS transmission according to at least one of the first information, an antenna switching dynamic indication, and an SRS resource dynamic indication.
  • the first capability information is sent through radio resource control RRC signaling and/or MAC CE.
  • the first capability information is also used to indicate the target frequency band and/or the target carrier, and the serving cell on the target frequency band and/or the serving cell on the target carrier can be configured in the same service in the district list.
  • the configuration granularity of the first capability information includes at least one of the following:
  • frequency band frequency band combination, each frequency band in the frequency band combination, each carrier on each frequency band in the frequency band combination, frequency band range, user equipment.
  • the communication unit 510 is also used to:
  • An SRS is received on at least one first SRS port of the third SRS resource.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are to realize the For the sake of brevity, the corresponding flow of the network device in the shown method 200 is not repeated here.
  • FIG. 22 is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application.
  • the communication device 600 shown in FIG. 22 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the mobile terminal/terminal device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiment of the present application, for the sake of brevity , which will not be repeated here.
  • FIG. 23 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 23 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 24 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 23 , the communication system 900 includes a terminal device 910 and a network device 920 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

L'invention concerne un procédé de communication sans fil, un dispositif terminal et un dispositif réseau. Le procédé comprend les étapes suivantes : un dispositif terminal reçoit des premières informations envoyées par un dispositif de réseau, les premières informations comprenant des premières informations d'indication, et les premières informations d'indication étant utilisées pour indiquer au moins l'un des éléments suivants : au moins une première ressource de signal de référence de sondage (SRS), dans un premier ensemble de ressources de SRS, utilisée pour la transmission de SRS ; ou au moins une deuxième ressource SRS, dans le premier ensemble de ressources SRS, non utilisée pour la transmission de SRS ; ou au moins un premier port SRS, d'au moins une troisième ressource SRS dans le premier ensemble de ressources SRS, utilisé pour la transmission de SRS ; ou au moins un deuxième port SRS, de la ou des troisièmes ressources SRS dans le premier ensemble de ressources SRS, non utilisé pour la transmission de SRS.
PCT/CN2021/122228 2021-09-30 2021-09-30 Procédé de communication sans fil, dispositif terminal et dispositif réseau WO2023050337A1 (fr)

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