CN117751532A

CN117751532A - Wireless communication method, terminal equipment and network equipment

Info

Publication number: CN117751532A
Application number: CN202180101228.8A
Authority: CN
Inventors: 刘哲; 张治�; 史志华; 邢金强
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2024-03-22
Also published as: WO2023097675A1

Abstract

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, which can avoid conflict between antenna ports associated with SRS resources in different frequency bands under the condition that the terminal equipment works in carrier aggregation among the frequency bands and all the frequency bands share a receiving antenna. A method of wireless communication, comprising: the terminal equipment transmits a first SRS for antenna switching on SRS resources in a first SRS resource set in a first resource set, and/or transmits a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set; the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, and the terminal equipment shares the receiving antenna on the first working frequency band and the second working frequency band.

Description

Wireless communication method, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the field of communication, and more particularly, to a wireless communication method, terminal equipment and network equipment.

Background

The terminal equipment works in the scene of carrier aggregation among frequency bands, and under the condition that all frequency bands share a receiving antenna, collision can occur among antenna ports associated with sounding reference signal (Sounding Reference Signal, SRS) resources of different frequency bands, so that SRS antenna switching cannot be performed, and acquisition of downlink channel state information is affected.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, terminal equipment and network equipment, wherein in the scene that the terminal equipment works in carrier aggregation among frequency bands and in the condition that all frequency bands share a receiving antenna, collision among antenna ports associated with SRS resources of different frequency bands can be avoided, so that SRS antenna switching is optimized.

In a first aspect, a method of wireless communication is provided, the method comprising:

the terminal equipment transmits a first SRS for antenna switching on SRS resources in a first SRS resource set in a first resource set, and/or transmits a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set;

the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.

In a second aspect, there is provided a method of wireless communication, the method comprising:

the network equipment receives a first SRS for antenna switching sent by the terminal equipment on SRS resources in a first SRS resource set in a first resource set, and/or receives a second SRS for antenna switching sent by the terminal equipment on SRS resources in a second SRS resource set in a second resource set;

In a third aspect, a terminal device is provided for performing the method in the first aspect.

Specifically, the terminal device comprises functional modules for performing the method in the first aspect described above.

In a fourth aspect, a network device is provided for performing the method in the second aspect.

In particular, the network device comprises functional modules for performing the method in the second aspect described above.

In a fifth aspect, a terminal device is provided comprising a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the first aspect.

In a sixth aspect, a network device is provided that includes a processor and a memory. The memory is for storing a computer program and the processor is for calling and running the computer program stored in the memory for performing the method of the second aspect described above.

In a seventh aspect, there is provided an apparatus for implementing the method of any one of the first to second aspects.

Specifically, the device comprises: a processor for calling and running a computer program from a memory, causing a device in which the apparatus is installed to perform the method of any of the first to second aspects as described above.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program that causes a computer to execute the method of any one of the first to second aspects.

In a ninth aspect, there is provided a computer program product comprising computer program instructions for causing a computer to perform the method of any one of the first to second aspects above.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of any of the first to second aspects described above.

By means of the technical scheme, in the situation that the terminal equipment works in inter-frequency band carrier aggregation and all frequency bands share the receiving antenna, the terminal equipment sends the first SRS for antenna switching on SRS resources in the first SRS resource set, and/or the terminal equipment sends the second SRS for antenna switching on SRS resources in the second SRS resource set. That is, in the embodiment of the present application, the terminal device sends the first SRS and the second SRS on the SRS resources located in different operating frequency bands, so that collision between antenna ports associated with the SRS resources in different frequency bands can be avoided, and SRS antenna switching is optimized.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture to which embodiments of the present application apply.

Fig. 2 is a schematic diagram of a 2T4R antenna switching provided herein.

Fig. 3 is a schematic diagram of port collision during antenna switching provided in the present application.

Fig. 4 is a schematic flow chart of a method of wireless communication provided in accordance with an embodiment of the present application.

Fig. 5 is a schematic diagram of carrier aggregation of a terminal device operating in 2 frequency bands according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a terminal device according to an embodiment of the present application operating in 3 frequency band carrier aggregation.

Fig. 7 is a schematic diagram of adjusting a-SRS resource location through additional slot offset according to an embodiment of the present application.

Fig. 8 is a schematic diagram of a different SRS corresponding to a different antenna port according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Fig. 10 is a schematic block diagram of a network device provided according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

Fig. 12 is a schematic block diagram of an apparatus provided in accordance with an embodiment of the present application.

Fig. 13 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden for the embodiments herein, are intended to be within the scope of the present application.

The technical solution of the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, universal packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (Universal Mobile Telecommunication System, UMTS), wireless local area network (Wireless Local Area Networks, WLAN), internet of things (internet of things, ioT), wireless fidelity (Wireless Fidelity, wiFi), fifth Generation communication (5 th-Generation, 5G) system, or other communication systems, etc.

Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, or internet of vehicles (Vehicle to everything, V2X) communication, etc., and the embodiments of the present application may also be applied to these communication systems.

In some embodiments, the communication system in the embodiments of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, a Stand Alone (SA) networking scenario, or a Non-stand alone (NSA) networking scenario.

In some embodiments, the communication system in the embodiments of the present application may be applied to unlicensed spectrum, where unlicensed spectrum may also be considered as shared spectrum; alternatively, the communication system in the embodiments of the present application may also be applied to licensed spectrum, where licensed spectrum may also be considered as non-shared spectrum.

In some embodiments, the communication system in the embodiments of the present application may be applied to the FR1 frequency band (corresponding to the frequency band range 410MHz to 7.125 GHz), the FR2 frequency band (corresponding to the frequency band range 24.25GHz to 52.6 GHz), and the new frequency band, such as the high frequency band corresponding to the frequency band range 52.6GHz to 71GHz or the frequency band range 71GHz to 114.25 GHz.

Embodiments of the present application describe various embodiments in connection with network devices and terminal devices, where a terminal device may also be referred to as a User Equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, user Equipment, or the like.

The terminal device may be a STATION (ST) in a WLAN, may be a cellular telephone, a cordless telephone, 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) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a next generation communication system such as an NR network, or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In embodiments of the present application, the terminal device may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.).

In the embodiment of the present application, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented Reality (Augmented Reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned driving (self driving), a wireless terminal device in telemedicine (remote media), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city) or a wireless terminal device in smart home (smart home), a vehicle-mounted communication device, a wireless communication Chip/application specific integrated circuit (application specific integrated circuit, ASIC)/System-on Chip (SoC), or the like.

By way of example, and not limitation, in embodiments of the present application, the terminal device may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, where the network device may be an Access Point (AP) in a WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or an Access Point, a vehicle device, a wearable device, a network device or a base station (gNB) in an NR network, a network device in a PLMN network of future evolution, or a network device in an NTN network, etc.

By way of example and not limitation, in embodiments of the present application, a network device may have a mobile nature, e.g., the network device may be a mobile device. In some embodiments, the network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous orbit (geostationary earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite, or the like. In some embodiments, the network device may also be a base station located on land, in water, etc.

In this embodiment of the present application, a network device may provide a service for a cell, where a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource, or a spectrum resource) used by the cell, where the cell may be a cell corresponding to a network device (e.g., a base station), and the cell may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), micro cells (Micro cells), pico cells (Pico cells), femto cells (Femto cells) and the like, and the small cells have the characteristics of small coverage area and low transmitting power and are suitable for providing high-rate data transmission services.

Exemplary, a communication system 100 to which embodiments of the present application apply is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices located within the coverage area.

Fig. 1 illustrates one network device and two terminal devices, and in some embodiments, the communication system 100 may include multiple network devices and may include other numbers of terminal devices within the coverage area of each network device, which is not limited in this embodiment.

In some embodiments, the communication system 100 may further include a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in an embodiment of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with communication functions, where the network device 110 and the terminal device 120 may be specific devices described above, and are not described herein again; the communication device may also include other devices in the communication system 100, such as a network controller, a mobility management entity, and other network entities, which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are used interchangeably herein. The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It is to be understood that the present disclosure relates to a first communication device, which may be a terminal device, such as a cell phone, a machine facility, a customer premises equipment (Customer Premise Equipment, CPE), an industrial device, a vehicle, etc., and a second communication device; the second communication device may be a peer communication device of the first communication device, such as a network device, a cell phone, an industrial device, a vehicle, etc. The description is made herein taking a specific example in which the first communication device is a terminal device and the second communication device is a network device.

The terminology used in the description section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application. The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

It should be understood that, in the embodiments of the present application, the "indication" may be a direct indication, an indirect indication, or an indication having an association relationship. For example, a indicates B, which may mean that a indicates B directly, e.g., B may be obtained by a; it may also indicate that a indicates B indirectly, e.g. a indicates C, B may be obtained by C; it may also be indicated that there is an association between a and B.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct correspondence or an indirect correspondence between the two, or may indicate that there is an association between the two, or may indicate a relationship between the two and the indicated, configured, or the like.

In the embodiment of the present application, the "pre-defining" or "pre-configuring" may be implemented by pre-storing a corresponding code, a table or other manners that may be used to indicate relevant information in a device (including, for example, a terminal device and a network device), and the specific implementation manner is not limited in this application. Such as predefined may refer to what is defined in the protocol.

In this embodiment of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include an LTE protocol, an NR protocol, and related protocols applied in a future communication system, which is not limited in this application.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies may be optionally combined with the technical solutions of the embodiments of the present application, which all belong to the protection scope of the embodiments of the present application. Embodiments of the present application include at least some of the following.

To facilitate a better understanding of the embodiments of the present application, a basic configuration of SRS relevant to the present application is described.

a) For different SRS uses, the base station may configure different SRS resource sets for the terminal and indicate the use of the SRS resource sets through higher layer signaling, e.g., the SRS resource sets may be used for antenna switching (antenna switching). In order to avoid wasting resources when implementing the target function, the NR system specifies the number of SRS resource sets configurable for different purposes and the configuration of the resource sets, where the maximum number of SRS resources that one SRS resource set may include and the maximum number of SRS ports that an SRS resource may include depend on the capabilities of the terminal device and the purposes of the SRS resource set.

b) The time domain type of the SRS resource set includes periodic, semi-persistent, and aperiodic.

And (5) periodically sending: all parameters of periodic SRS (P-SRS) resources are configured by high-level signaling, and SRS resources in the same resource set have the same periodicity;

semi-persistent transmission: semi-persistent SRS (SP-SRS) is activated and deactivated by a medium access control element (Media Access Control Control Element, MAC CE). In the activation period, the semi-continuous SRS is periodically transmitted according to the configuration of the high-layer signaling;

Aperiodic transmission: an aperiodic SRS (a-SRS) is triggered through downlink control information (Downlink Control Information, DCI) signaling. And the terminal equipment performs SRS transmission corresponding to the triggered SRS resource when receiving the SRS trigger signaling for triggering the aperiodic SRS resource once. The triggering signaling in the DCI comprises 2 bits, 00 state identifiers in the 2 bits do not trigger the aperiodic SRS to send, and other 3 states respectively represent triggering of a first SRS resource group, a second SRS resource group and a third SRS resource group; one state may trigger one or more SRS resource sets, and a plurality of SRS resource sets corresponding to one state may correspond to 1 carrier or multiple carriers.

For better understanding of the embodiments of the present application, SRS antenna switching related to the present application is described.

And in the NR system, the base station side is supported to acquire the downlink channel state information by measuring SRS by utilizing channel reciprocity. Limited by cost and hardware, the number of antennas that a terminal device may transmit simultaneously may be less than the number of receive antennas, resulting in different terminal devices having different antenna transceiving capabilities. In order to support terminal equipment with fewer transmitting antennas than receiving antennas to obtain downlink channel state information through channel reciprocity, the terminal equipment transmits SRS with antenna switching purpose. The transceiving capabilities include, but are not limited to, the following: the number of transmit antennas is the same as the number of receive antennas (i.e., t=r), the number of transmit antennas is 1 and the number of receive antennas is 2 (i.e., 1T 2R), the number of transmit antennas is 1 and the number of receive antennas is 4 (i.e., 1T 4R), the number of transmit antennas is 2 and the number of receive antennas is 4 (i.e., 2T 4R). The number of transmit antennas is the number of SRS ports, and the number of receive antennas is the number of antenna ports. Different antenna transceiving capabilities, for example, the base station may configure the terminal device with an SRS resource set for downlink channel state information acquisition in one of the following manners:

a) T=r: 2 SRS resource sets are configured at most, each resource set comprises an SRS resource, and the number of antenna ports of the SRS is 1,2 and 4;

b) 1T2R: up to 2 resource sets are configured, and one resource set contains 2 SRS resources transmitted in different orthogonal frequency division multiplexing (Orthogonal frequency-division multiplexing, OFDM) symbols, and the number of ports of each SRS resource is 1.

c) 2T4R: up to 2 resource sets are configured, and one resource set contains 2 SRS resources transmitted in different OFDM symbols, and each SRS resource has two ports.

Taking 2T4R as an example, a schematic diagram of SRS antenna switching is shown in fig. 2.

In order to better understand the embodiments of the present application, terminal capabilities related to the present application are described.

In intra-band (intra-band) carrier aggregation (carrier aggregation, CA) and inter-band (inter-band) carrier aggregation scenarios, a terminal device may report terminal capabilities to a network device, including the following two terminal capability parameters:

uplink carrier aggregation synchronization transmission SRS antenna switching (simulTX-SRS-antswitchingintrabandwidth ul-CA-r 16) within the frequency band: in the intra-band CA scenario, whether or not the SRS used for antenna switching (antenna switching) and the SRS used for other purposes of different carriers can be transmitted simultaneously, or whether or not the SRS used for antenna switching (antenna switching) and the SRS used for antenna switching (antenna switching) on different carriers can be transmitted simultaneously.

Inter-band uplink carrier aggregation synchronization transmission SRS antenna switching (simulTX-SRS-antswitchingintersystem ul-CA-r 16): in the inter-band CA scenario, the SRS used for antenna switching (antenna switching) and the SRS used for other purposes of different carriers can be transmitted simultaneously, or the SRS used for antenna switching (antenna switching) and the SRS used for antenna switching (antenna switching) on different carriers can be transmitted simultaneously.

In order to facilitate a better understanding of embodiments of the present application, the problems addressed by the present application are described.

As shown in fig. 3, the terminal device works in the inter-Band carrier aggregation scenario, and shares the receiving antennas in all the bands, at this time, the antenna ports (association relationship is shown by solid lines) associated with the SRS ports of the SRS resource in Band 1 (Band 1) are the same as the antenna ports (association relationship is shown by dashed lines) associated with the SRS resource in Band2 (Band 2), and due to the fact that the receiving antennas are shared, the problem of port collision occurs, which may cause that SRS antenna switching cannot be performed, that is, the acquisition of downlink channel state information is affected.

Based on the above problems, the present application proposes a scheme for SRS antenna switching, where in a scenario where a terminal device works in inter-band carrier aggregation, and in a case where all bands share a receiving antenna, collision between antenna ports associated with SRS resources in different bands can be avoided, so that SRS antenna switching is optimized.

The technical scheme of the present application is described in detail below through specific embodiments.

Fig. 4 is a schematic flow chart of a method 200 of wireless communication according to an embodiment of the present application, as shown in fig. 4, the method 200 of wireless communication may include at least some of the following:

s210, the terminal equipment sends a first SRS for antenna switching on SRS resources in a first SRS resource set in a first resource set, and/or sends a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set; the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.

The working frequency band of the embodiment of the application may refer to a frequency band divided in a protocol. Such as frequency bands divided in the 4G or 5G protocols or in other protocols (e.g., 6G, etc.). The working frequency band may be an uplink frequency band, and the working frequency band may correspond to a frequency band number. Illustratively, the bin numbers may be n8, n20, n78, n79, n83, n260, and so on. The operating frequency band may be a Frequency Division Duplex (FDD) frequency band, a Time Division Duplex (TDD) frequency band, or a Supplementary UpLink (SUL) frequency band.

It should be noted that, in the case where the terminal device operates in inter-band carrier aggregation (inter-band carrier aggregation, inter-band CA) and in the case where all bands share the receiving antenna, when the SRS antenna is switched, the receiving antennas between different operating bands are shared, if the SRS is switched in two operating bands at the same time, SRS resource collision may occur, or the SRS antenna switching cannot be supported simultaneously in hardware. Based on the above, the embodiment of the application designs the schemes for switching the SRS antenna in terms of time domain resources, antenna ports, transmission priority and the like, and can avoid the conflict between the antenna ports associated with the SRS resources in different frequency bands, thereby optimizing the SRS antenna switching.

In an embodiment of the present application, the use (use) of the SRS resource set in the first resource set and the second resource set is antenna switching (antenna switching).

It should be noted that, the first SRS resource set is any one SRS resource set in the first resource set, or the first SRS resource set is a specific SRS resource set in the first resource set; and the second SRS resource set is any SRS resource set in the second resource set, or the second SRS resource set is a specific SRS resource set in the second resource set. The present application is not limited in this regard.

In some embodiments, the receiving antenna may be replaced with a receiving channel, a radio frequency front end, a radio frequency link, a power amplifier, etc., which is not limited in this application.

In the embodiment of the application, the terminal equipment shares the receiving antenna in the first working frequency band and the second working frequency band, and the transmitting antennas of the terminal equipment in the first working frequency band and the second working frequency band are independently designed. Specifically, for example, the terminal device supports SRS antenna switching with the number of transmit antennas x1 and the number of receive antennas y in the first operating Band (Band 1), and the terminal device supports SRS antenna switching with the number of transmit antennas x2 and the number of receive antennas y in the second operating Band (Band 2), where x1, x2, and y are all positive integers. For example, x1=1, x1=2. Alternatively, the first operating frequency band is typically a low frequency band (< 1 GHz) and the second operating frequency band is typically a medium high frequency band.

Specifically, for example, x1=2, x2=1, and y=4, that is, the terminal device performs antenna switching in the case that the first operating frequency band supports 2T4R, and the terminal device performs antenna switching in the case that the second operating frequency band supports 1T4R, as shown in fig. 5.

In some embodiments, the terminal device may operate in the context of carrier aggregation in multiple frequency bands (greater than 2 frequency bands). Specifically, for example, the terminal device reports the SRS antenna switching with the number of transmission antennas being x1 and the number of reception antennas being y in the first operating frequency Band (Band 1), the terminal device reports the SRS antenna switching with the number of transmission antennas being x2 and the number of reception antennas being y in the second operating frequency Band (Band 2), the terminal device reports the SRS antenna switching with the number of transmission antennas being x3 and the number of reception antennas being y in the third operating frequency Band (Band 3), the terminal device shares the reception antennas in the first operating frequency Band, the second operating frequency Band and the third operating frequency Band, and the transmission antennas of the terminal device in the first operating frequency Band, the second operating frequency Band and the third operating frequency Band are independently designed, and x1, x2, x3 and y are positive integers. In this case, for example, the terminal device transmits a first SRS for antenna switching on SRS resources in a first set of SRS resources and/or the terminal device transmits a second SRS for antenna switching on SRS resources in a second set of SRS resources and/or the terminal device transmits a third SRS for antenna switching on SRS resources in a third set of SRS resources. The SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, and the SRS resources in the third resource set belong to a third working frequency band.

Specifically, for example, x1=1, x2=1, x3=1, and y=4, that is, the antenna switching of the terminal device in the case where the first operating frequency band supports 1T4R, the antenna switching of the terminal device in the case where the second operating frequency band supports 1T4R, and the antenna switching of the terminal device in the case where the third operating frequency band supports 1T4R are shown in fig. 6.

In some embodiments, the terminal device receives first configuration information sent by the network device; the first configuration information is used for determining an SRS sending mode by the terminal equipment.

In some embodiments, the first configuration information includes at least one of: configuration information of the first set of resources and configuration information of the second set of resources. For example, the terminal device may obtain or determine the first set of resources based on configuration information of the first set of resources, and obtain or determine the second set of resources based on configuration information of the second set of resources.

In some embodiments, the first configuration information may be carried by one of:

radio resource control (Radio Resource Control, RRC) signaling, MAC CE, DCI.

In some embodiments, the first configuration information is determined based on first capability information reported by the terminal device.

Specifically, the first capability information at least includes whether the terminal device supports transmitting SRS for antenna switching at the same time on a plurality of carriers in a scenario of sharing a receiving antenna; wherein the plurality of carriers correspond to different operating frequency bands.

Specifically, for example, the network device receives the first capability information sent by the terminal device; and the network equipment determines the first configuration information according to the first capability information; and the network device sending the first configuration information to the terminal device.

In some embodiments, the first configuration information may also be determined directly by the network device.

Specifically, for example, the network device determines first configuration information, and the network device sends the first configuration information to the terminal device.

In some embodiments, the terminal device supports SRS antenna switching capability with a number of transmit antennas x1 and a number of receive antennas y on a first operating frequency band, and the terminal device supports SRS antenna switching capability with a number of transmit antennas x2 and a number of receive antennas y on a second operating frequency band. In this case, the first capability information includes at least one of:

whether the terminal equipment supports the simultaneous transmission of SRS for antenna switching on a plurality of carriers in the scene of sharing the receiving antenna or not;

If x1 is smaller than y, the terminal equipment supports that the SRS for antenna switching is transmitted simultaneously on a plurality of carriers in the scene of sharing the receiving antenna;

if x1 is equal to y, the terminal device supports transmitting SRS for antenna switching simultaneously on a plurality of carriers in a scenario of sharing a receiving antenna;

if x2 is less than y, the terminal equipment supports transmitting SRS for antenna switching simultaneously on a plurality of carriers in the scene of sharing the receiving antenna;

if x2 is equal to y, the terminal device supports transmitting SRS for antenna switching simultaneously on a plurality of carriers in a scenario of sharing a receiving antenna;

if x1+x2 is smaller than y, the terminal device supports simultaneous transmission of SRS for antenna switching on a plurality of carriers in a scenario of sharing the receiving antenna;

if x1+x2 is equal to y, the terminal device supports simultaneous transmission of SRS for antenna switching on a plurality of carriers in a scenario of sharing a receiving antenna;

in the case of x1=x2, whether or not the terminal device supports simultaneous transmission of SRS for antenna switching on a plurality of carriers in a scenario in which the reception antennas are shared (regarding SRS resource set configuration);

in the case where x1 is not equal to x2, whether or not the terminal device supports simultaneous transmission of SRS for antenna switching on a plurality of carriers in the context of sharing the reception antenna (regarding SRS resource set configuration);

In the scenario of sharing the receiving antenna, the terminal device supports the number N of carriers for simultaneously transmitting SRS for antenna switching, for example, N is an integer greater than or equal to 2.

In some embodiments, the first capability information is reported in a manner of "per UE reporting (per UE)" or "per band combination reporting (per band combination)" or "per band reporting (per band)".

In some embodiments, the first capability information may be reported in an enumeration (enumeration), or boolean, or 2 states in 1 bit.

For example, the reporting manner of the first capability information may be: the first capability information ENUMERATED { supported }.

For example, the reporting manner of the first capability information may be: first capability information boost. Where 'true' represents that SRS for antenna switching is supported to be transmitted simultaneously on a plurality of carriers, and 'false' represents that SRS for antenna switching is not supported to be transmitted simultaneously on a plurality of carriers.

For example, the reporting manner of the first capability information may be: the first capability information ENUMERATED {2,3,4,not supported }, where 2,3,4 represents the number of carriers supported by the terminal device for simultaneously transmitting SRS for antenna switching, and not supported represents that the terminal device does not support simultaneous transmission of SRS for antenna switching on multiple carriers.

Therefore, in the scenario of sharing the receiving antenna, the terminal device in the embodiment of the present application provides a method for reporting the terminal capability (i.e. the first capability information): whether or not SRS for antenna switching is supported to be transmitted simultaneously on a plurality of carriers is supported, so that the network device can determine configuration information of the first resource set and/or configuration information of the second resource set based on the first capability information.

In some embodiments, the transmitting antennas correspond to transmitting channels, one transmitting antenna corresponds to one transmitting channel, one receiving antenna corresponds to one receiving channel, the transmitting channels may be represented by TX numbers, and the numbers of the receiving channels are represented by antenna port AP numbers.

It should be understood that, in the embodiment of the present application, the antenna transceiving capability of the terminal device may be the antenna transceiving capability used for antenna switching, or the antenna transceiving capability of the terminal device may be the antenna transceiving capability of the physical antenna.

The technical scheme of the application is described in detail through specific embodiments.

In embodiment 1, the SRS resource sets in the first and second resource sets are aperiodic resource sets, and the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in time domain. Therefore, the conflict between antenna ports associated with SRS resources in different frequency bands can be avoided.

In some implementations of embodiment 1, the terminal device does not support transmitting SRS for antenna switching at the same time on multiple carriers.

That is, in the case where the terminal device does not support simultaneous transmission of SRS for antenna switching on a plurality of carriers, the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in time domain.

Specifically, for example, the terminal device may determine, based on the first configuration information, that the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in a time domain.

That is, in embodiment 1, the terminal device may report through the first capability information: the terminal device does not support transmitting SRS for antenna switching at the same time on a plurality of carriers in a scenario of sharing a reception antenna. In this case, the terminal device expects SRS resources in the first set of resources and SRS resources in the second set of resources configured by the network device for antenna switching to not overlap in the time domain.

Specifically, in embodiment 1, it may be achieved in one of the following manners 1 to 3 that the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in the time domain.

Mode 1 is achieved by allocating different slot offsets for different SRS resource sets.

In one implementation of embodiment 1, when the first SRS resource set and the second SRS resource set are triggered by the same downlink control information and the aperiodic trigger state corresponding to the first SRS resource set and the aperiodic trigger state corresponding to the second SRS resource set are configured to have the same value, the slot offset corresponding to the first SRS resource set is different from the slot offset corresponding to the second SRS resource set.

Specifically, the slot offset corresponds to a slot offset between a slot in which the downlink control information for triggering is located and a slot in which the corresponding SRS resource set is located.

That is, the slot offset corresponding to the first SRS resource set is different from the slot offset corresponding to the second SRS resource set.

In one implementation manner of embodiment 1, when the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are triggered by the same downlink control information, and the aperiodic trigger state corresponding to the M SRS resource sets in the first resource set and the aperiodic trigger state corresponding to the N SRS resource sets in the second resource set are configured to be the same value, the slot offset corresponding to the M SRS resource sets in the first resource set is different from the slot offset corresponding to the N SRS resource sets in the second resource set, the first SRS resource set belongs to the M SRS resource sets, and the second SRS resource set belongs to the N SRS resource sets, where M and N are both positive integers.

That is, the slot offsets corresponding to the M SRS resource sets in the first resource set are different from the slot offsets corresponding to the N SRS resource sets in the second resource set.

It should be noted that, the M SRS resource sets may be part or all of the SRS resource sets in the first resource set, and the N SRS resource sets may be part or all of the SRS resource sets in the second resource set.

Optionally, slot offsets corresponding to different SRS resource sets in the M SRS resource sets are different.

Optionally, the slot offsets corresponding to different SRS resource sets in the N SRS resource sets are different.

In some implementations, the value of the aperiodic trigger state can be configured by a higher layer parameter, such as aperiodic SRS-resource trigger (aperiodic SRS).

In one implementation of mode 1, the slot offset corresponding to the first SRS resource set is configured through RRC signaling, and/or the slot offset corresponding to the second SRS resource set is configured through RRC signaling. For example, the slot offset corresponding to each SRS resource set in the first resource set is configured through RRC signaling. For example, the slot offset corresponding to each SRS resource set in the second resource set is configured through RRC signaling.

In one implementation of mode 1, the slot offset corresponding to the first set of resources is configured through RRC signaling, and/or the slot offset corresponding to the second set of resources is configured through RRC signaling.

Mode 1 configures slot offset through RRC signaling, and the configuration method is simple.

Mode 2, the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and values of aperiodic trigger states corresponding to the P SRS resource sets are the same; wherein the P SRS resource sets correspond to a target slot offset group of the L slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset of the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset of the target slot offset group; wherein L is the number of the largest configurable SRS resource sets, P and L are positive integers, and P is less than or equal to L.

In embodiment 2, the slot offset group of the L slot offset groups includes a slot offset different from the slot offset in embodiment 1 described above. The slot offsets included in the slot offset groups of the L slot offset groups may be slot offsets additionally configured on the basis of the slot offsets in the above-described mode 1. That is, in the mode 2, the slot offset in the slot offset group of the L slot offset groups may also be referred to as an additional (additional) slot offset (slot offset).

In one implementation of mode 2, each of the L slot offset groups includes P slot offsets, and the P slot offsets respectively correspond to the P SRS resource sets.

That is, the P slot offsets may correspond one-to-one to the P SRS resource sets.

For example, the values of P are respectively denoted as slot offset 1, slot offset 2, slot offset 3, and 3 SRS resource sets are respectively denoted as SRS resource set 1, SRS resource set 2, and SRS resource set 3, specifically, SRS resource set 1 corresponds to slot offset 1, SRS resource set 2 corresponds to slot offset 2, and SRS resource set 3 corresponds to slot offset 3.

In one implementation of mode 2, the target slot offset group may be implicitly determined from the L slot offset groups.

Specifically, for example, the target slot offset group is associated with a value of an aperiodic trigger state corresponding to the P SRS resource sets. That is, the terminal device may determine the target slot offset group from the L slot offset groups based on the value of the aperiodic trigger state. In one implementation of mode 2, the L slot offset groups are configured by RRC signaling.

In one implementation, the number of slot offsets included in the L slot offset groups is 1, …, L, respectively, the slot offset group 1 includes 1 slot offset, the slot offset group 2 includes 2 slot offsets, and so on, the slot offset group L includes L slot offsets. The target slot offset group may be determined by configuring an aperiodic SRS-resource trigger (aperiodic SRS-resource trigger) field to the same number of states. For example, if the aperiodic srs-resource trigger field is configured to have the same number of states of 4, i.e., p=4, the target slot offset group is slot offset group 4.

Specifically, in mode 2, the L slot offset groups may be configured through RRC signaling, where the value of L is the same as the number of the largest configurable SRS resource sets, i.e., the value of L is the same as the value indicated by the largest configurable SRS resource set number (maxNrofSRS-resources) field, where the value indicated by the maxNrofSRS-resources field is greater than or equal to 16.

Example 1, an aperiodic SRS resource trigger (aperiodic SRS-resource trigger) field of 4 SRS resource sets is configured to be 1 (i.e., the value of the aperiodic trigger state is 1), and 4 slot offset groups (in slots) are exemplified. The SRS request (SRS request) field in DCI format 0_1, DCI format 0_2, DCI format 1_1, DCI format 1_2, or DCI format 2_3 triggers the SRS resource set with corresponding aperiodic SRS-resource trigger field configured to 1, then the first slot offset group of the 4 slot offset groups is implicitly associated in a predefined manner. For 4 SRS resource sets of the same carrier (the subcarrier spacing is the same), the first slot offset group may be: { n1, n2, n3, n4}; alternatively, for 4 SRS resource sets (the subcarrier spacing may be the same or different) located on different carriers, the first slot offset group may be: { n1, n2, n3, n4}.

Note that, n1, n2, n3, n4 is an integer number of slots, the configured reference subcarrier spacing of the first slot offset group may be a subcarrier spacing of a physical downlink control channel (Physical Downlink Control Channel, PDCCH) carrying DCI, or the configured reference subcarrier spacing of the first slot offset group may be a subcarrier spacing of one of SRS resource sets, or the configured reference subcarrier spacing of the first slot offset group may be a minimum value of subcarrier spacing of PDCCH and a plurality of SRS resource sets, that is, a subcarrier spacing of min { PDCCH, a subcarrier spacing of a plurality of SRS resource sets }. The following examples are illustrated with reference to subcarrier spacing of PDCCH carrying DCI.

For example, for 4 SRS resource sets of the same carrier (the subcarrier intervals are the same), the corresponding first slot offset group (the unit is the slot corresponding to the corresponding subcarrier interval, the subcarrier interval of the PDCCH carrying DCI is the reference subcarrier interval) may be:

{n1*(2 ^μ_SRS /2 ^μ_PDCCH )，n2*(2 ^μ_SRS /2 ^μ_PDCCH )，n3*(2 ^μ_SRS /2 ^μ_PDCCH )，n4*(2 ^μ_SRS /2 ^μ_PDCCH )}；

where μ is a subcarrier spacing configuration, μ_srs represents a subcarrier spacing of SRS, μ_pdcch represents a subcarrier spacing of PDCCH carrying DCI.

That is, in example 1, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n1 x (2 ^μ_SRS /2 ^μ ^_PDCCH ) The slot offset corresponding to the second SRS resource set is n2 x (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n3 x (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the fourth SRS resource set is n4 x (2 ^μ_SRS /2 ^μ_PDCCH )。

For example, for 4 SRS resource sets (subcarrier intervals may be the same or different) located in different carriers, the corresponding first slot offset group (unit is a slot corresponding to the corresponding subcarrier interval, and the subcarrier interval of the PDCCH carrying DCI is taken as the reference subcarrier interval) may be:

{n1*(2 ^μ_SRS1 /2 ^μ_PDCCH )，n2*(2 ^μ_SRS2 /2 ^μ_PDCCH )，n3*(2 ^μ_SRS3 /2 ^μ_PDCCH )，n4*(2 ^μ_SRS4 /2 ^μ_PDCCH )}；

where μ is a subcarrier spacing configuration, μ_srs1 represents a subcarrier spacing corresponding to SRS resource set 1, μ_srs2 represents a subcarrier spacing corresponding to SRS resource set 2, μ_srs3 represents a subcarrier spacing corresponding to SRS resource set 3, μ_srs4 represents a subcarrier spacing corresponding to SRS resource set 4, and μ_pdcch represents a subcarrier spacing of a PDCCH carrying DCI.

That is, in example 1, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n1 x (2 ^μ_SRS1 /2 ^μ ^_PDCCH ) The slot offset corresponding to the second SRS resource set is n2 x (2 ^μ_SRS2 /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n3 x (2 ^μ_SRS3 /2 ^μ_PDCCH ) The slot offset corresponding to the fourth SRS resource set is n4 x (2 ^μ_SRS4 /2 ^μ_PDCCH )。

Example 2, an aperiodic SRS resource trigger (aperiodic SRS-resource trigger) field of 4 SRS resource sets is configured to 2 (i.e., the value of the aperiodic trigger state is 2), and 4 slot offset groups (in slots) are exemplified. The SRS request (SRS request) field in DCI format 0_1, DCI format 0_2, DCI format 1_1, DCI format 1_2, or DCI format 2_3 triggers the SRS resource set with the corresponding aperiodic SRS-resource trigger field configured to 2, and then the second slot offset group of the 4 slot offset groups is implicitly associated in a predefined manner. For 4 SRS resource sets for the same carrier (same subcarrier spacing), the second slot offset set may be: { n5, n6, n7, n8}; alternatively, for 4 SRS resource sets (subcarrier spacing may be the same or different) located on different carriers, the second slot offset group may be: { n5, n6, n7, n8}.

Note that, n5, n6, n7, n8 are integer number of slots, the configured reference subcarrier spacing of the second slot offset group may be a subcarrier spacing of a PDCCH carrying DCI, or the configured reference subcarrier spacing of the second slot offset group may be a subcarrier spacing of one of SRS resource sets, or the configured reference subcarrier spacing of the second slot offset group may be a minimum value of subcarrier spacing of a PDCCH and a plurality of SRS resource sets, that is, a subcarrier spacing of min { PDCCH, a subcarrier spacing of a plurality of SRS resource sets }. The following examples are illustrated with reference to subcarrier spacing of PDCCH carrying DCI.

For example, for 4 resource sets of the same carrier (the subcarrier spacing is the same), its corresponding second slot offset group (the unit is the slot corresponding to the corresponding subcarrier spacing, the subcarrier spacing of PDCCH carrying DCI is the reference subcarrier spacing) may be:

{n5*(2 ^μ_SRS /2 ^μ_PDCCH )，n6*(2 ^μ_SRS /2 ^μ_PDCCH )，n7*(2 ^μ_SRS /2 ^μ_PDCCH )，n8*(2 ^μ_SRS /2 ^μ_PDCCH )}；

That is, in example 2, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n5 x (2 ^μ_SRS /2 ^μ ^_PDCCH ) The slot offset corresponding to the second SRS resource set is n6 x (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n7 x (2 ^μ_SRS /2 ^μ_PDCCH )，The slot offset corresponding to the fourth SRS resource set is n8 x (2 ^μ_SRS /2 ^μ_PDCCH )。

For example, for 4 resource sets (subcarrier intervals may be the same or different) located on different carriers, the corresponding second slot offset group (unit is the slot corresponding to the corresponding subcarrier interval, the subcarrier interval of PDCCH carrying DCI is the reference subcarrier interval) may be:

{n5*(2 ^μ_SRS1 /2 ^μ_PDCCH )，n6*(2 ^μ_SRS2 /2 ^μ_PDCCH )，n7*(2 ^μ_SRS3 /2 ^μ_PDCCH )，n8*(2 ^μ_SRS4 /2 ^μ_PDCCH )}；

That is, in example 2, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n5 x (2 ^μ_SRS1 /2 ^μ ^_PDCCH ) The slot offset corresponding to the second SRS resource set is n6 x (2 ^μ_SRS2 /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n7 x (2 ^μ_SRS3 /2 ^μ_PDCCH ) The slot offset corresponding to the fourth SRS resource set is n8 x (2 ^μ_SRS4 /2 ^μ_PDCCH )。

Example 3, an aperiodic SRS resource trigger (aperiodic SRS-resource trigger) field of 4 SRS resource sets is configured to 3 (i.e., the value of the aperiodic trigger state is 3), and 4 slot offset groups (in slots) are exemplified. The SRS request (SRS request) field in DCI format 0_1, DCI format 0_2, DCI format 1_1, DCI format 1_2, or DCI format 2_3 triggers the SRS resource set with the corresponding aperiodic SRS-resource trigger field configured to 3, and then the third slot offset group of the 4 slot offset groups is implicitly associated in a predefined manner. For 4 SRS resource sets for the same carrier (same subcarrier spacing), the second slot offset set may be: { n9, n10, n11, n12}; alternatively, for 4 SRS resource sets (the subcarrier spacing may be the same or different) located on different carriers, the third slot offset group may be: { n9, n10, n11, n12}.

Note that, n9, n10, n11, n12 is an integer number of slots, the configured reference subcarrier spacing of the third slot offset group may be a subcarrier spacing of a PDCCH carrying DCI, or the configured reference subcarrier spacing of the third slot offset group may be a subcarrier spacing of one of SRS resource sets, or the configured reference subcarrier spacing of the third slot offset group may be a minimum value of subcarrier spacing of a PDCCH and a plurality of SRS resource sets, that is, a subcarrier spacing of min { PDCCH, a subcarrier spacing of a plurality of SRS resource sets }. The following examples are illustrated with reference to subcarrier spacing of PDCCH carrying DCI.

For example, for 4 resource sets of the same carrier (the subcarrier spacing is the same), its corresponding third slot offset group (the unit is the slot corresponding to the corresponding subcarrier spacing, the subcarrier spacing of PDCCH carrying DCI is the reference subcarrier spacing) may be:

{n9*(2 ^μ_SRS /2 ^μ_PDCCH )，n10*(2 ^μ_SRS /2 ^μ_PDCCH )，n11*(2 ^μ_SRS /2 ^μ_PDCCH )，n12*(2 ^μ_SRS /2 ^μ_PDCCH )}；

That is, in example 3, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n9 x (2 ^μ_SRS /2 ^μ _{_} ^PDCCH ) The slot offset corresponding to the second SRS resource set is n10 x (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n11 x (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the fourth SRS resource set is n12 x (2 ^μ_SRS /2 ^μ_PDCCH )。

For example, for 4 resource sets (subcarrier intervals may be the same or different) located on different carriers, the corresponding third slot offset group (unit is the slot corresponding to the corresponding subcarrier interval, the subcarrier interval of PDCCH carrying DCI is the reference subcarrier interval) may be:

{n9*(2 ^μ_SRS1 /2 ^μ_PDCCH )，n10*(2 ^μ_SRS2 /2 ^μ_PDCCH )，n11*(2 ^μ_SRS3 /2 ^μ_PDCCH )，n12*(2 ^μ_SRS4 /2 ^μ_PDCCH )}；

wherein μ is a subcarrier spacing configuration, μ_srs1 represents a subcarrier spacing corresponding to SRS resource set 1, μ ^_ SRS2 represents a subcarrier spacing corresponding to SRS resource set 2, μ_srs3 represents a subcarrier spacing corresponding to SRS resource set 3, μ_srs4 represents a subcarrier spacing corresponding to SRS resource set 4, and μ_pdcch represents a subcarrier spacing of a PDCCH carrying DCI.

That is, in example 3, among the 4 SRS resource sets, the slot offset corresponding to the first SRS resource set is n9 x (2 ^μ_SRS1 /2 ^μ _{_} ^PDCCH ) The slot offset corresponding to the second SRS resource set is n10 x (2 ^μ_SRS2 /2 ^μ_PDCCH ) The slot offset corresponding to the third SRS resource set is n11 x (2 ^μ_SRS3 /2 ^μ_PDCCH ) The slot offset corresponding to the fourth SRS resource set is n12 x (2 ^μ_SRS4 /2 ^μ_PDCCH )。

In examples 1 to 3 above, when the aperiodic srs-resource trigger field is configured to be 1,2,3, the values of the corresponding n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11, n12 may be completely different positive integers, or may be partially the same positive integers, for example, n1=n5=n9=2; n2=n6=n10=4; n3=n7=n11=6; n4=n8=n12=8.

Example 4 the number of SRS resource sets with the aperiodic SRS-resource trigger field configured as 1 or 2 or 3 may also be different and the number of slot offsets in the L slot offset groups of the RRC configuration is 1 to maxNrofSRS-resource sets.

For example, maxNrofSRS-resources=4, then the entire slot offset set for RRC signaling configuration is exemplified as follows:

time slot offset group (same subcarrier spacing or different subcarrier spacing) SEQUENCE {

Time slot offset group 1{ s1}

Slot offset set 2{ s2, s3}

Time slot offset set 3{ s4, s5, s6}

The slot offset set 4{ s7, s8, s9, s10}

}

Wherein s1 to s10 are positive integers.

It should be noted that s1 to s10 are an integer number of slots, the configured reference subcarrier spacing of the L slot offset groups may be a subcarrier spacing of a PDCCH carrying DCI, or the configured reference subcarrier spacing of the L slot offset groups may be a subcarrier spacing of one of SRS resource sets, or the configured reference subcarrier spacing of the L slot offset groups may be a minimum value of subcarrier spacing of the PDCCH and the plurality of SRS resource sets, that is, min { a subcarrier spacing of the PDCCH, a subcarrier spacing of the plurality of SRS resource sets }. The following examples are illustrated with reference to subcarrier spacing of PDCCH carrying DCI.

Specifically, for example, if the number of SRS resource sets with an apiodics SRS-ResourceTrigger field configured to 1 is 2, the number of SRS resource sets with an apiodics SRS-ResourceTrigger field configured to 2 is 3, and the number of SRS resource sets with an apiodics SRS-ResourceTrigger field configured to 3 is 4, the SRS resource set with an apiodics SRS-ResourceTrigger field configured to 1 corresponds to the slot offset group 2, the SRS resource set with an apiodics SRS-ResourceTrigger field configured to 2 corresponds to the slot offset group 3, and the SRS resource set with an apiodics SRS-ResourceTrigger field configured to 3 corresponds to the slot offset group 4.

In mode 2, the extra slot offset corresponding to each SRS resource set is configured through RRC signaling, that is, the configuration flexibility is improved, the probability that SRS resources of the first SRS resource set and the second SRS resource set overlap in the time domain is reduced, and greater configuration flexibility is provided for the TDD carrier and the scenario with fewer uplink slots. And the implicit association mode is adopted, so that the control signaling overhead is not increased.

Mode 3, the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and values of aperiodic trigger states corresponding to the P SRS resource sets are the same; wherein the P SRS resource sets correspond to a target slot offset group of the Q slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset of the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset of the target slot offset group; wherein Q is greater than L, or Q is an integer multiple of L, L is the number of the largest configurable SRS resource sets, P, Q, L are positive integers, and P is less than or equal to L.

In embodiment 3, the slot offset group of the Q slot offset groups includes a slot offset different from the slot offset in embodiment 1 described above. The slot offsets included in the slot offset group of the Q slot offset groups may be slot offsets additionally configured on the basis of the slot offsets in the above-described mode 1. That is, in the mode 3, the slot offset in the slot offset group of the Q slot offset groups may also be referred to as an additional (additional) slot offset (slot offset).

In one implementation of mode 3, each of the Q slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.

In one implementation of mode 3, the target slot offset group belongs to at least one slot offset group activated from the Q slot offset groups.

For example, in mode 3, the target slot offset group is a randomly selected one of the at least one slot offset group.

For another example, in mode 3, the target slot offset group is a first slot offset group of the at least one slot offset group, or the target slot offset group is a slot offset group with a minimum index value of the at least one slot offset group.

For another example, in mode 3, the target slot offset group is the last slot offset group in the at least one slot offset group, or the target slot offset group is the slot offset group with the largest index value in the at least one slot offset group.

In one implementation of mode 3, the at least one slot offset group is activated by a MAC CE. For example, the network device activates one or more of the Q slot offset groups through the MAC CE, and the terminal device determines a target slot offset group from the activated one or more slot offset groups.

In one implementation of mode 3, the Q slot offset groups are configured by RRC signaling.

Specifically, for example, q=4l, i.e. 4L slot offset groups are configured, L is the number of the largest configurable SRS resource set, i.e. L is the value of maxNrofSRS-resources. For example, maxNrofSRS-resources=2, then the number of slot offset groups configured by RRC signaling is 4*2 =8, i.e., q=8, as follows:

Time slot offset group 1{ s1}

Time slot offset group 2{ s2}

Slot offset set 3{ s3}

Time slot offset set 4{ s4}

Time slot offset set 5{ s5, s6}

Time slot offset set 6{ s7, s8}

Time slot offset set 7{ s9, s10}

Time slot offset set 8{ s11, s12}

}

Wherein s1 to s12 are positive integers.

It should be noted that s1 to s12 are an integer number of slots, the configured reference subcarrier spacing of the Q slot offset groups may be a subcarrier spacing of the PDCCH carrying DCI, or the configured reference subcarrier spacing of the Q slot offset groups may be a subcarrier spacing of one of the SRS resource sets, or the configured reference subcarrier spacing of the Q slot offset groups may be a minimum value of the subcarrier spacing of the PDCCH and the plurality of SRS resource sets, that is, min { the subcarrier spacing of the PDCCH, the subcarrier spacing of the plurality of SRS resource sets }. The following examples are illustrated with reference to subcarrier spacing of PDCCH carrying DCI.

To reduce DCI overhead, 1 or more of the slot offset groups may be activated using MAC CE, e.g., one of the 8 slot offset groups may be activated for 2 SRS resource sets. If the MAC CE activates the slot offset group 8, the following is implicitly associated in a predefined manner (the unit is the slot corresponding to the corresponding subcarrier interval, and the subcarrier interval of the PDCCH carrying the DCI is the reference subcarrier interval):

For 2 SRS resource sets of the same carrier (the subcarrier spacing is the same), its corresponding slot offset group may be:

{s11*(2 ^μ_SRS /2 ^μ_PDCCH )，s12*(2 ^μ_SRS /2 ^μ_PDCCH )；

That is, among the 2 SRS resource sets, the slot offset corresponding to the first SRS resource set is s11 (2 ^μ_SRS /2 ^μ_PDCCH ) The slot offset corresponding to the second SRS resource set is s12 x (2 ^μ_SRS /2 ^μ_PDCCH )。

For 2 SRS resource sets (the subcarrier spacing may be the same or different) located in different carriers, the corresponding slot offset group may be:

{s11*(2 ^μ_SRS1 /2 ^μ_PDCCH )，s12*(2 ^μ_SRS2 /2 ^μ_PDCCH )；

where μ is a subcarrier spacing configuration, μ_srs1 represents a subcarrier spacing corresponding to SRS resource set 1, μ_srs2 represents a subcarrier spacing corresponding to SRS resource set 2, and μ_pdcch represents a subcarrier spacing of a PDCCH carrying DCI.

That is, among the 2 SRS resource sets, the slot offset corresponding to the first SRS resource set is s11 (2 ^μ_SRS1 /2 ^μ_PDCCH ) The slot offset corresponding to the second SRS resource set is s12 x (2 ^μ_SRS2 /2 ^μ_PDCCH )。

Specifically, for example, as shown in fig. 7, the first SRS resource set is located on carrier 1 in the frequency band 1, the second SRS resource set is located on carrier 2 in the frequency band 1, and the resource types of the first SRS resource set and the second SRS resource set are both aperiodic resources. In fig. 7 (a), the network device collides with the a-SRS resources in the second SRS resource set through the a-SRS resources in the first SRS resource set triggered by the DCI (i.e. the a-SRS resources on the first slot after the slot offset from the slot in which the DCI is located). In fig. 7 (b), the network device does not collide with the a-SRS resources in the second SRS resource set through the a-SRS resources in the first SRS resource set triggered by the DCI (i.e. starting from the slot in which the DCI is located, the slot offset + the a-SRS resources on the first slot after the additional slot offset (i.e. candidate additional slot offset 1 in fig. 7).

It should be noted that the candidate additional slot offset 1 in fig. 7 may be s11 (2 ^μ_SRS1 /2 ^μ_PDCCH ) The candidate additional slot offset 2 may be s12 (2 ^μ_SRS2 /2 ^μ_PDCCH )。

In mode 3, the additional slot offset corresponding to each SRS resource set is configured and activated through RRC signaling and MAC signaling, so that the flexibility of configuration is further improved, the probability that SRS resources of the first SRS resource set and the second SRS resource set overlap in the time domain is reduced, and greater flexibility of configuration is provided for a scenario with a time division duplex (Time Division Duplex, TDD) carrier and fewer uplink slots. And the implicit association mode is adopted, so that the control signaling overhead is not increased.

Mode 4, slot offsets corresponding to different SRS resource sets are associated with downlink control information, or slot offsets corresponding to different resource sets are associated with downlink control information.

In embodiment 4, the slot offset is different from that in embodiment 1 described above. In mode 4, the slot offset may be a slot offset additionally configured on the basis of the slot offset in mode 1 described above. That is, in the mode 4, the slot offset may also be referred to as an additional (additional) slot offset (slot offset).

In one implementation of mode 4, the first SRS resource set or the slot offset corresponding to the first resource set is associated with a bit state of an SRS request field in the first downlink control information, and/or the second SRS resource set or the slot offset corresponding to the second resource set is associated with a bit state of an SRS request field in the second downlink control information.

In one implementation of mode 4, the first SRS resource set or a slot offset corresponding to the first resource set is associated with a first bit state of the SRS request field in the first downlink control information and/or the second SRS resource set or a slot offset corresponding to the second resource set is associated with a second bit state of the SRS request field in the first downlink control information.

For example, the association relationship between the SRS request field and the slot offset in the DCI may be as shown in table 1, where it is to be noted that the first slot offset, the second slot offset, and the third slot offset are integer slots, and the reference subcarrier interval of the first slot offset, the second slot offset, and the third slot offset may be a subcarrier interval of the PDCCH carrying the DCI, or the reference subcarrier interval may be a subcarrier interval of one of the SRS resource sets, or the reference subcarrier interval may be a minimum value of subcarrier intervals of the PDCCH and the SRS resource sets, that is, a subcarrier interval of min { PDCCH, a subcarrier interval of the SRS resource sets }.

TABLE 1

In one implementation manner of the embodiment 4, the first SRS resource set or a slot offset corresponding to the first resource set is indicated by the first downlink control information, and/or the second SRS resource set or a slot offset corresponding to the second resource set is indicated by the second downlink control information.

In one implementation of mode 4, the first SRS resource set or the slot offset corresponding to the first resource set is indicated by one or more bit states in the first downlink control information, and/or the second SRS resource set or the slot offset corresponding to the second resource set is indicated by one or more bit states in the second downlink control information.

Mode 4 avoids the probability of overlapping of a plurality of SRS resources in the time domain by implicitly associating the slot offset with the bit state in the downlink control information without increasing the downlink control information overhead.

In one implementation of embodiment 1, the subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is the same.

In one implementation of embodiment 1, the subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is not exactly the same.

Specifically, for example, when the subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is not identical, the slot offset corresponding to the first SRS resource set is configured based on the slot length of the first carrier of the plurality of carriers being the reference slot length, and/or the slot offset corresponding to the second SRS resource set is configured based on the slot length of the first carrier of the plurality of carriers being the reference slot length.

For example, the first carrier is a carrier with a minimum subcarrier spacing corresponding to the plurality of carriers, e.g., the first carrier is a carrier with a subcarrier spacing of 15 KHz. Of course, the first carrier may be another carrier of the plurality of carriers.

In one implementation manner of embodiment 1, the terminal device does not support transmitting SRS for antenna switching at the same time on multiple carriers, where the multiple carriers correspond to different operating frequency bands.

Embodiment 2, the antenna port associated with the port for transmitting the first SRS is different from the antenna port associated with the port for transmitting the second SRS. Therefore, the conflict between antenna ports associated with SRS resources in different frequency bands can be avoided.

In some implementations of embodiment 2, the SRS resources in the first set of resources for transmitting the first SRS overlap in time domain with the SRS resources in the second set of resources for transmitting the second SRS. In this case, the antenna port associated with the port for transmitting the first SRS is different from the antenna port associated with the port for transmitting the second SRS.

That is, when the SRS resource for transmitting the first SRS in the first resource set and the SRS resource for transmitting the second SRS in the second resource set overlap in time domain, an antenna port associated with a port for transmitting the first SRS by the terminal device is different from an antenna port associated with a port for transmitting the second SRS.

In some implementations of embodiment 2, the resource type of the first set of resources is periodic or semi-persistent resources and/or the resource type of the second set of resources is periodic or semi-persistent resources.

In some implementations of embodiment 2, the resource type of the first set of resources is non-periodic resources and/or the resource type of the second set of resources is non-periodic resources.

In some implementations of embodiment 2, the terminal device supports transmitting SRS for antenna switching simultaneously on multiple carriers, where the multiple carriers correspond to different operating frequency bands.

Specifically, for example, as shown in fig. 8, the antenna port (i.e., the reception channel) corresponding to the SRS transmitted on the SRS resource 11 in the first SRS resource set is different from the antenna port (i.e., the reception channel) corresponding to the SRS transmitted on the SRS resource 21 in the second SRS resource set. And, the antenna ports (i.e., receive channels) corresponding to SRS transmitted on SRS resource 12 in the first set of SRS resources are different from the antenna ports (i.e., receive channels) corresponding to SRS transmitted on SRS resource 22 in the second set of SRS resources.

In embodiment 2, when the SRS resource for transmitting the first SRS in the first resource set and the SRS resource for transmitting the second SRS in the second resource set overlap in the time domain, the antenna port associated with the port for transmitting the first SRS by the terminal device is different from the antenna port associated with the port for transmitting the second SRS, so that collision between the antenna ports associated with the SRS resources in different frequency bands can be avoided.

In embodiment 3, in a case where the terminal device does not support simultaneous transmission of SRS for antenna switching in multiple carriers, and the SRS resource for transmitting the first SRS overlaps with the SRS resource for transmitting the second SRS in the time domain, the terminal device preferentially transmits the target SRS. That is, in S210 described above, the terminal device may preferentially transmit the target SRS. Therefore, the conflict between antenna ports associated with SRS resources in different frequency bands can be avoided.

Specifically, the target SRS is an SRS transmitted on a carrier with a smaller carrier index corresponding to the first SRS and the second SRS; or the target SRS is the SRS which is in the process of SRS antenna switching in the first SRS and the second SRS; or the target SRS is an SRS with earlier downlink control information triggered in the first SRS and the second SRS; or the target SRS is an SRS with higher priority for corresponding antenna switching in the first SRS and the second SRS.

The term "SRS that performs SRS antenna switching" may be understood as: the SRS resource set used for SRS antenna switching needs a plurality of SRS resources to finish SRS antenna switching, wherein the first SRS or the second SRS is the ith SRS resource in the plurality of SRS resources, i is not equal to 1, and the first SRS or the second SRS is a target SRS; or, the SRS antenna switching needs a plurality of SRS resource sets to complete the SRS antenna switching, the first SRS or the second SRS belongs to an ith SRS resource set in the plurality of SRS resource sets, i is not equal to 1, and the first SRS or the second SRS is the target SRS.

In one implementation, the higher priority SRS is determined according to a resource type of the SRS resource set, e.g., the aperiodic SRS resource set has a higher priority than the periodic SRS resource set and the semi-persistent SRS resource set, and the semi-persistent SRS resource set has a higher priority than the periodic SRS resource set.

In one implementation, the higher priority SRS is determined according to a priority level (level) of the network device configuration. The priority ranking may be n ranks, level n for level 1, …. For example, the priority levels may be two levels, high priority and low priority. The network device may configure the priority level through higher layer signaling, which may be RRC signaling or MAC CE, or physical layer signaling, which may be DCI or implicitly associated with the state in the SRS request. The present implementation may be used for SRS resource sets with aperiodic resource types.

For example, an example of the network device configuring the Priority level through RRC signaling is as follows, specifically configuring the Priority level through an SRS Priority (Priority-SRS) field:

the method for solving the problem that the SRS cannot be transmitted due to time domain resource conflict is avoided by determining the target SRS through priority, and further providing a solution for the time domain overlapping of a plurality of SRS resources.

In some implementations of embodiment 3, the network device sends first indication information to the terminal device; the first indication information is used for indicating: in the case where the terminal device does not support simultaneous transmission of SRS for antenna switching in multiple carriers and the resources for transmitting the first SRS overlap with the resources for transmitting the second SRS in the time domain, the terminal device preferentially transmits the target SRS.

That is, in the present embodiment, the terminal device may determine to preferentially transmit the target SRS based on the first indication information.

The target SRS is an SRS sent on a carrier with a smaller carrier index corresponding to the first SRS and the second SRS; or the target SRS is the SRS which is executing SRS antenna switching in the first SRS and the second SRS; or the target SRS triggers an earlier SRS for downlink control information in the first SRS and the second SRS.

In embodiment 3, in the case where the SRS resource for transmitting the first SRS overlaps with the SRS resource for transmitting the second SRS in the time domain, the terminal device may preferentially transmit a certain SRS. Therefore, the conflict between antenna ports associated with SRS resources in different frequency bands can be avoided.

It should be noted that, the Downlink Control Information (DCI) described in the embodiments of the present application may be downlink control information carried in a PDCCH channel, for example, a DCI format.

Therefore, in the embodiment of the present application, in a scenario where the terminal device operates in inter-band carrier aggregation, and in a case where all bands share the receiving antennas, the terminal device transmits the first SRS for antenna switching on the SRS resources in the first SRS resource set, and/or the terminal device transmits the second SRS for antenna switching on the SRS resources in the second SRS resource set. That is, in the embodiment of the present application, the terminal device sends the first SRS and the second SRS on the SRS resources located in different operating frequency bands, so that collision between antenna ports associated with the SRS resources in different frequency bands can be avoided, and SRS antenna switching is optimized.

In the embodiment of the present application, the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in time domain, so that collision between antenna ports associated with the SRS resources in different frequency bands can be avoided.

In the embodiment of the application, the antenna port associated with the port for transmitting the first SRS is different from the antenna port associated with the port for transmitting the second SRS, so that collision between the antenna ports associated with the SRS resources in different frequency bands can be avoided.

In the embodiment of the present application, when the terminal device does not support simultaneous transmission of SRS for antenna switching on multiple carriers, and the SRS resource for transmitting the first SRS overlaps with the SRS resource for transmitting the second SRS in the time domain, the terminal device preferentially transmits the target SRS, so that collision between antenna ports associated with SRS resources in different frequency bands can be avoided.

The method embodiments of the present application are described in detail above with reference to fig. 4 to 8, and the apparatus embodiments of the present application are described in detail below with reference to fig. 9 to 10, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

Fig. 9 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in fig. 9, the terminal device 300 includes:

a first communication unit 310, configured to send a first SRS for antenna switching on SRS resources in a first sounding reference signal SRS resource set in a first resource set, and/or send a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set;

In some embodiments, the SRS resource sets in the first and second resource sets are aperiodic resource sets, and the SRS resources in the first SRS resource set do not overlap with the SRS resources in the second SRS resource set in the time domain.

In some embodiments, when the first SRS resource set and the second SRS resource set are triggered by the same downlink control information and the aperiodic trigger state corresponding to the first SRS resource set and the aperiodic trigger state corresponding to the second SRS resource set are configured to be the same value, the slot offset corresponding to the first SRS resource set is different from the slot offset corresponding to the second SRS resource set; or,

when the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are triggered by the same downlink control information, and the aperiodic trigger states corresponding to the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are configured to be the same value, the slot offsets corresponding to the M SRS resource sets in the first resource set and the slot offsets corresponding to the N SRS resource sets in the second resource set are different, the first SRS resource set belongs to the M SRS resource sets, the second SRS resource set belongs to the N SRS resource sets, and M and N are both positive integers.

In some embodiments, the slot offset corresponding to the first SRS resource set is configured by radio resource control, RRC, signaling and/or the slot offset corresponding to the second SRS resource set is configured by RRC signaling.

In some embodiments, the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and values of aperiodic trigger states respectively corresponding to the P SRS resource sets are the same;

wherein the P SRS resource sets correspond to a target slot offset group of the L slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset of the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset of the target slot offset group;

wherein L is the number of the largest configurable SRS resource sets, P and L are positive integers, and P is less than or equal to L.

In some embodiments, each of the L slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.

In some embodiments, the target slot offset group is associated with a value of an aperiodic trigger state corresponding to the P SRS resource sets.

In some embodiments, the L slot offset groups are configured by RRC signaling.

wherein the P SRS resource sets correspond to a target slot offset group of the Q slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset of the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset of the target slot offset group;

wherein Q is greater than L, or Q is an integer multiple of L, L is the number of the largest configurable SRS resource sets, P, Q, L are positive integers, and P is less than or equal to L.

In some embodiments, each of the Q slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.

In some embodiments, the target slot offset group belongs to at least one slot offset group activated from the Q slot offset groups.

In some embodiments, the at least one slot offset group is activated by a medium access control element, MAC CE.

In some embodiments, the Q slot offset groups are configured by RRC signaling.

In some embodiments, the slot offset corresponding to the first SRS resource set is associated with a bit state of an SRS request field in the first downlink control information and/or the slot offset corresponding to the second SRS resource set is associated with a bit state of an SRS request field in the second downlink control information; or,

the slot offset corresponding to the first SRS resource set is associated with a first bit state of the SRS request field in the first downlink control information and/or the slot offset corresponding to the second SRS resource set is associated with a second bit state of the SRS request field in the first downlink control information; or,

the time slot offset corresponding to the first SRS resource set is indicated by the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is indicated by the second downlink control information; or,

the slot offset corresponding to the first SRS resource set is indicated by one or more bit states in the first downlink control information, and/or the slot offset corresponding to the second SRS resource set is indicated by one or more bit states in the second downlink control information.

In some embodiments, the subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is the same; or, the subcarrier intervals of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set are not identical.

In some embodiments, in a case where the subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is not identical, the slot offset corresponding to the first SRS resource set is configured based on the slot length of the first carrier of the plurality of carriers being the reference slot length, and/or the slot offset corresponding to the second SRS resource set is configured based on the slot length of the first carrier of the plurality of carriers being the reference slot length.

In some embodiments, the first carrier is a carrier with a minimum subcarrier spacing corresponding to the plurality of carriers.

In some embodiments, the terminal device does not support transmitting SRS for antenna switching at the same time on multiple carriers, where the multiple carriers correspond to different operating frequency bands.

In some embodiments, the antenna port associated with the port used to transmit the first SRS is different from the antenna port associated with the port used to transmit the second SRS.

In some embodiments, the SRS resources in the first set of resources for transmitting the first SRS overlap in time domain with the SRS resources in the second set of resources for transmitting the second SRS.

In some embodiments, the resource type of the first set of resources is periodic or semi-persistent resources and/or the resource type of the second set of resources is periodic or semi-persistent resources; or,

The resource type of the first set of resources is non-periodic resources and/or the resource type of the second set of resources is non-periodic resources.

In some embodiments, the terminal device supports transmitting SRS for antenna switching simultaneously on multiple carriers, where the multiple carriers correspond to different operating frequency bands.

In some embodiments, the first communication unit 310 is specifically configured to:

preferentially transmitting a target SRS in the case that the terminal device does not support simultaneous transmission of SRS for antenna switching on a plurality of carriers and SRS resources for transmitting the first SRS overlap with SRS resources for transmitting the second SRS in time domain;

the target SRS is an SRS sent on a carrier with a smaller carrier index corresponding to the first SRS and the second SRS; or the target SRS is the SRS which is in the process of SRS antenna switching in the first SRS and the second SRS; or the target SRS is an SRS with earlier downlink control information triggered in the first SRS and the second SRS; or the target SRS is an SRS with higher priority for corresponding antenna switching in the first SRS and the second SRS.

In some embodiments, the terminal device 300 further comprises:

a second communication unit 320, configured to receive the first configuration information;

The first configuration information is used for determining a sending mode of the SRS by the terminal equipment, and the first configuration information comprises at least one of the following steps: configuration information of the first set of resources and configuration information of the second set of resources.

In some embodiments, the first configuration information is determined based on first capability information reported by the terminal device;

the first capability information at least comprises whether the terminal equipment supports sending SRS for antenna switching at the same time on a plurality of carriers under the scene of sharing a receiving antenna;

wherein the plurality of carriers correspond to different operating frequency bands.

In some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 300 are respectively for implementing the corresponding flow of the terminal device in the method 200 shown in fig. 4, which is not described herein for brevity.

Fig. 10 shows a schematic block diagram of a network device 400 according to an embodiment of the present application. As shown in fig. 10, the network device 400 includes:

A first communication unit 410, configured to receive a first SRS for antenna switching sent by a terminal device on an SRS resource in a first sounding reference signal SRS resource set in a first resource set, and/or receive a second SRS for antenna switching sent by a network device on an SRS resource in a second SRS resource set in a second resource set;

In some embodiments, the L slot offset groups are configured by RRC signaling.

In some embodiments, the Q slot offset groups are configured by RRC signaling.

In some embodiments, the network device 400 further comprises:

a second communication unit 420, configured to send first indication information to the terminal device;

the first indication information is used for indicating: in the case that the terminal device does not support simultaneous transmission of SRS for antenna switching in multiple carriers, and the SRS resource for transmitting the first SRS overlaps with the SRS resource for transmitting the second SRS in the time domain, the terminal device preferentially transmits the target SRS;

In some embodiments, the network device 400 further comprises:

a second communication unit 420, configured to send the first configuration information to the terminal device;

In some embodiments, the network device 400 further comprises: the processing unit 430 may, among other things,

the first communication unit 410 is further configured to receive first capability information sent by the terminal device; the first capability information at least comprises whether the terminal equipment supports sending SRS for antenna switching simultaneously on a plurality of carriers under the scene of sharing a receiving antenna, wherein the plurality of carriers correspond to different working frequency bands;

the processing unit 430 is configured to determine the first configuration information according to the first capability information.

It should be understood that the network device 400 according to the embodiment of the present application may correspond to the network device in the embodiment of the method of the present application, and the foregoing and other operations and/or functions of each unit in the network device 400 are respectively for implementing the corresponding flow of the network device in the method 200 shown in fig. 4, and are not further described herein for brevity.

Fig. 11 is a schematic structural diagram of a communication device 500 provided in an embodiment of the present application. The communication device 500 shown in fig. 11 comprises a processor 510, from which the processor 510 may call and run a computer program to implement the method in the embodiments of the present application.

In some embodiments, as shown in fig. 11, the communication device 500 may also include a memory 520. Wherein the processor 510 may call and run a computer program from the memory 520 to implement the methods in embodiments of the present application.

Wherein the memory 520 may be a separate device from the processor 510 or may be integrated into the processor 510.

In some embodiments, as shown in fig. 11, the communication device 500 may further include a transceiver 530, and the processor 510 may control the transceiver 530 to communicate with other devices, and in particular, may transmit information or data to other devices, or receive information or data transmitted by other devices.

Wherein the transceiver 530 may include a transmitter and a receiver. The transceiver 530 may further include antennas, the number of which may be one or more.

In some embodiments, the communication device 500 may be specifically a network device in the embodiments of the present application, and the communication device 500 may implement corresponding flows implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity.

In some embodiments, the communication device 500 may be specifically a terminal device in the embodiments of the present application, and the communication device 500 may implement a corresponding flow implemented by the terminal device in each method in the embodiments of the present application, which is not described herein for brevity.

Fig. 12 is a schematic structural view of an apparatus of an embodiment of the present application. The apparatus 600 shown in fig. 12 includes a processor 610, and the processor 610 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

In some embodiments, as shown in fig. 12, the apparatus 600 may further include a memory 620. Wherein the processor 610 may call and run a computer program from the memory 620 to implement the methods in embodiments of the present application.

The memory 620 may be a separate device from the processor 610 or may be integrated into the processor 610.

In some embodiments, the apparatus 600 may further include an input interface 630. The processor 610 may control the input interface 630 to communicate with other devices or chips, and in particular, may acquire information or data sent by the other devices or chips.

In some embodiments, the apparatus 600 may further comprise an output interface 640. Wherein the processor 610 may control the output interface 640 to communicate with other devices or chips, and in particular, may output information or data to other devices or chips.

In some embodiments, the apparatus may be applied to a network device in the embodiments of the present application, and the apparatus may implement corresponding flows implemented by the network device in each method in the embodiments of the present application, which are not described herein for brevity.

In some embodiments, the apparatus may be applied to a terminal device in the embodiments of the present application, and the apparatus may implement a corresponding flow implemented by the terminal device in each method in the embodiments of the present application, which is not described herein for brevity.

In some embodiments, the device mentioned in the embodiments of the present application may also be a chip. For example, a system-on-chip or a system-on-chip, etc.

Fig. 13 is a schematic block diagram of a communication system 700 provided in an embodiment of the present application. As shown in fig. 13, the communication system 700 includes a terminal device 710 and a network device 720.

The terminal device 710 may be configured to implement the corresponding functions implemented by the terminal device in the above method, and the network device 720 may be configured to implement the corresponding functions implemented by the network device in the above method, which are not described herein for brevity.

It should be appreciated that the processor of an embodiment of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be implemented by integrated logic circuits of hardware in a processor or instructions in software form. The processor may 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 programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It will be appreciated that the memory in embodiments of the present application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memory is exemplary but not limiting, and for example, the memory in the embodiments of the present application may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory in embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

Embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

In some embodiments, the computer readable storage medium may be applied to a network device in the embodiments of the present application, and the computer program causes a computer to execute corresponding processes implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity.

In some embodiments, the computer readable storage medium may be applied to a terminal device in the embodiments of the present application, and the computer program causes a computer to execute corresponding processes implemented by the terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

In some embodiments, the computer program product may be applied to a network device in the embodiments of the present application, and the computer program instructions cause the computer to execute corresponding flows implemented by the network device in the methods in the embodiments of the present application, which are not described herein for brevity.

In some embodiments, the computer program product may be applied to a terminal device in an embodiment of the present application, and the computer program instructions cause the computer to execute corresponding processes implemented by the terminal device in each method in the embodiment of the present application, which are not described herein for brevity.

The embodiment of the application also provides a computer program.

In some embodiments, the computer program may be applied to a network device in the embodiments of the present application, where the computer program when executed on a computer causes the computer to execute corresponding processes implemented by the network device in the methods in the embodiments of the present application, and for brevity, will not be described in detail herein.

In some embodiments, the computer program may be applied to a terminal device in the embodiments of the present application, and when the computer program runs on a computer, the computer is caused to execute corresponding processes implemented by the terminal device in the methods in the embodiments of the present application, which are not described herein for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. For such understanding, the technical solutions of the present application may be embodied in essence or in a part contributing to the prior art or in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of wireless communication, comprising:

the terminal equipment transmits a first SRS for antenna switching on SRS resources in a first Sounding Reference Signal (SRS) resource set in a first resource set, and/or transmits a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set;

the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.
The method of claim 1, wherein,

the SRS resource sets in the first and second resource sets are aperiodic resource sets, and the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in time domain.
The method of claim 2, wherein,

when the first SRS resource set and the second SRS resource set are triggered by the same downlink control information and the aperiodic trigger state corresponding to the first SRS resource set and the aperiodic trigger state corresponding to the second SRS resource set are configured to be the same value, the slot offset corresponding to the first SRS resource set is different from the slot offset corresponding to the second SRS resource set; or,

when the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are triggered by the same downlink control information, and the aperiodic trigger states corresponding to the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are configured to be the same value, the slot offsets corresponding to the M SRS resource sets in the first resource set and the slot offsets corresponding to the N SRS resource sets in the second resource set are different, where the first SRS resource set belongs to the M SRS resource sets, and the second SRS resource set belongs to the N SRS resource sets, and M and N are positive integers.
The method of claim 3, wherein,

the time slot offset corresponding to the first SRS resource set is configured through Radio Resource Control (RRC) signaling, and/or the time slot offset corresponding to the second SRS resource set is configured through RRC signaling.
The method of claim 1 or 2, wherein,

the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and the values of the aperiodic trigger states corresponding to the P SRS resource sets are the same;

the P SRS resource sets correspond to a target slot offset group in L slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset in the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset in the target slot offset group;

wherein L is the number of the largest configurable SRS resource sets, P and L are positive integers, and P is less than or equal to L.
The method of claim 5, wherein,

each of the L slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.
The method of claim 5 or 6, wherein,

The target slot offset group is associated with values of aperiodic trigger states corresponding to the P SRS resource sets.
The method according to any one of claim 5 to 7,

the L time slot offset groups are configured through RRC signaling.
The method of claim 1 or 2, wherein,

the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and the values of the aperiodic trigger states corresponding to the P SRS resource sets are the same;

the P SRS resource sets correspond to a target slot offset group in Q slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset in the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset in the target slot offset group;

wherein Q is greater than L, or Q is an integer multiple of L, L is the number of the largest configurable SRS resource sets, P, Q, L are positive integers, and P is less than or equal to L.
The method of claim 9, wherein,

each of the Q slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.
The method of claim 9 or 10, wherein,

the target slot offset group belongs to at least one slot offset group activated from among the Q slot offset groups.
The method of claim 11, wherein,

the at least one slot offset group is activated by a medium access control element, MAC CE.
The method according to any one of claim 9 to 12, wherein,

the Q slot offset groups are configured by RRC signaling.
The method of claim 1 or 2, wherein,

the time slot offset corresponding to the first SRS resource set is associated with the bit state of the SRS request field in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is associated with the bit state of the SRS request field in the second downlink control information; or,

the time slot offset corresponding to the first SRS resource set is associated with a first bit state of an SRS request field in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is associated with a second bit state of the SRS request field in the first downlink control information; or,

the time slot offset corresponding to the first SRS resource set is indicated by first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is indicated by second downlink control information; or,

The time slot offset corresponding to the first SRS resource set is indicated by one or more bit states in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is indicated by one or more bit states in the second downlink control information.
The method according to any one of claim 3 to 14,

the subcarrier intervals of a plurality of carriers corresponding to the first SRS resource set and the second SRS resource set are the same; or,

the subcarrier intervals of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set are not identical.
The method of claim 15, wherein, in the case where subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is not exactly the same, a slot offset corresponding to the first SRS resource set is configured based on a slot length of a first carrier of the plurality of carriers being a reference slot length and/or a slot offset corresponding to the second SRS resource set is configured based on a slot length of a first carrier of the plurality of carriers being a reference slot length.
The method of claim 16, wherein the first carrier is a carrier of the plurality of carriers for which a corresponding subcarrier spacing is smallest.
The method according to any one of claim 2 to 17, wherein,

the terminal equipment does not support sending SRS for antenna switching at the same time on a plurality of carriers, wherein the plurality of carriers correspond to different working frequency bands.
The method of claim 1, wherein an antenna port associated with a port used to transmit the first SRS is different from an antenna port associated with a port used to transmit the second SRS.
The method of claim 19, wherein,

the SRS resources in the first set of resources for transmitting the first SRS overlap in time domain with the SRS resources in the second set of resources for transmitting the second SRS.
The method of claim 19 or 20, wherein,

the resource type of the first resource set is a periodic resource or a semi-continuous resource, and/or the resource type of the second resource set is a periodic resource or a semi-continuous resource; or,

the resource type of the first resource set is non-periodic resource and/or the resource type of the second resource set is non-periodic resource.
The method according to any one of claim 19 to 21,

The terminal equipment supports that SRS for antenna switching is transmitted simultaneously on a plurality of carriers, wherein the plurality of carriers correspond to different working frequency bands.
The method of claim 1, wherein,

the terminal device sends a first SRS for antenna switching on SRS resources in a first SRS resource set in a first resource set, and/or sends a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set, including:

in the case that the terminal device does not support simultaneous transmission of SRS for antenna switching in multiple carriers, and SRS resources for transmitting the first SRS overlap with SRS resources for transmitting the second SRS in a time domain, the terminal device preferentially transmits a target SRS;

the target SRS is an SRS sent on a carrier with a smaller carrier index corresponding to the first SRS and the second SRS; or the target SRS is the SRS which is in the process of SRS antenna switching in the first SRS and the second SRS; or the target SRS is an SRS with earlier downlink control information triggered in the first SRS and the second SRS; or the target SRS is an SRS with higher priority for corresponding antenna switching in the first SRS and the second SRS.
The method of any one of claims 1 to 23, wherein the method further comprises:

the terminal equipment receives first configuration information;

the terminal equipment determines an SRS transmission mode according to the first configuration information, where the first configuration information includes at least one of the following: configuration information of the first resource set and configuration information of the second resource set.
The method of claim 24, wherein,

the first configuration information is determined based on first capability information reported by the terminal equipment;

the first capability information at least comprises whether the terminal equipment supports sending SRS for antenna switching at the same time on a plurality of carriers in a scene of sharing a receiving antenna;

wherein the plurality of carriers correspond to different operating frequency bands.
A method of wireless communication, comprising:

the network equipment receives a first SRS for antenna switching sent by the terminal equipment on SRS resources in a first SRS resource set in a first resource set, and/or receives a second SRS for antenna switching sent by the terminal equipment on SRS resources in a second SRS resource set in a second resource set;

The SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.
The method of claim 26, wherein,

the SRS resource sets in the first and second resource sets are aperiodic resource sets, and the SRS resources in the first SRS resource set and the SRS resources in the second SRS resource set do not overlap in time domain.
The method of claim 27, wherein,

when the first SRS resource set and the second SRS resource set are triggered by the same downlink control information and the aperiodic trigger state corresponding to the first SRS resource set and the aperiodic trigger state corresponding to the second SRS resource set are configured to be the same value, the slot offset corresponding to the first SRS resource set is different from the slot offset corresponding to the second SRS resource set; or,

When the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are triggered by the same downlink control information, and the aperiodic trigger states corresponding to the M SRS resource sets in the first resource set and the N SRS resource sets in the second resource set are configured to be the same value, the slot offsets corresponding to the M SRS resource sets in the first resource set and the slot offsets corresponding to the N SRS resource sets in the second resource set are different, where the first SRS resource set belongs to the M SRS resource sets, and the second SRS resource set belongs to the N SRS resource sets, and M and N are positive integers.
The method of claim 28, wherein,

the time slot offset corresponding to the first SRS resource set is configured through Radio Resource Control (RRC) signaling, and/or the time slot offset corresponding to the second SRS resource set is configured through RRC signaling.
The method of claim 26 or 27, wherein,

the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and the values of the aperiodic trigger states corresponding to the P SRS resource sets are the same;

The P SRS resource sets correspond to a target slot offset group in L slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset in the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset in the target slot offset group;

wherein L is the number of the largest configurable SRS resource sets, P and L are positive integers, and P is less than or equal to L.
The method of claim 30, wherein,

each of the L slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.
The method of claim 30 or 31, wherein,

the target slot offset group is associated with values of aperiodic trigger states corresponding to the P SRS resource sets.
The method of any one of claim 30 to 32,

the L time slot offset groups are configured through RRC signaling.
The method of claim 26 or 27, wherein,

the first SRS resource set and the second SRS resource set belong to P SRS resource sets, and the values of the aperiodic trigger states corresponding to the P SRS resource sets are the same;

The P SRS resource sets correspond to a target slot offset group in Q slot offset groups, the slot offset corresponding to the first SRS resource set is a first slot offset in the target slot offset group, and the slot offset corresponding to the second SRS resource set is a second slot offset in the target slot offset group;

wherein Q is greater than L, or Q is an integer multiple of L, L is the number of the largest configurable SRS resource sets, P, Q, L are positive integers, and P is less than or equal to L.
The method of claim 34, wherein,

each of the Q slot offset groups includes P slot offsets, and the P slot offsets correspond to the P SRS resource sets, respectively.
The method of claim 34 or 35, wherein,

the target slot offset group belongs to at least one slot offset group activated from among the Q slot offset groups.
The method of claim 36, wherein,

the at least one slot offset group is activated by a medium access control element, MAC CE.
The method of any one of claim 34 to 37,

the Q slot offset groups are configured by RRC signaling.
The method of claim 26 or 27, wherein,

the time slot offset corresponding to the first SRS resource set is associated with the bit state of the SRS request field in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is associated with the bit state of the SRS request field in the second downlink control information; or,

the time slot offset corresponding to the first SRS resource set is associated with a first bit state of an SRS request field in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is associated with a second bit state of the SRS request field in the first downlink control information; or,

the time slot offset corresponding to the first SRS resource set is indicated by first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is indicated by second downlink control information; or,

the time slot offset corresponding to the first SRS resource set is indicated by one or more bit states in the first downlink control information, and/or the time slot offset corresponding to the second SRS resource set is indicated by one or more bit states in the second downlink control information.
The method of any one of claim 28 to 39,

The subcarrier intervals of a plurality of carriers corresponding to the first SRS resource set and the second SRS resource set are the same; or,

the subcarrier intervals of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set are not identical.
The method of claim 40, wherein, in the case where subcarrier spacing of the plurality of carriers corresponding to the first SRS resource set and the second SRS resource set is not exactly the same, a slot offset corresponding to the first SRS resource set is configured based on a slot length of a first carrier of the plurality of carriers being a reference slot length and/or a slot offset corresponding to the second SRS resource set is configured based on a slot length of a first carrier of the plurality of carriers being a reference slot length.
The method of claim 41, wherein the first carrier is a carrier with a smallest subcarrier spacing among the plurality of carriers.
The method of any one of claim 27 to 42,

the terminal equipment does not support sending SRS for antenna switching at the same time on a plurality of carriers, wherein the plurality of carriers correspond to different working frequency bands.
The method of claim 26, wherein an antenna port associated with a port used to transmit the first SRS is different from an antenna port associated with a port used to transmit the second SRS.
The method of claim 44, wherein,

the SRS resources in the first set of resources for transmitting the first SRS overlap in time domain with the SRS resources in the second set of resources for transmitting the second SRS.
The method of claim 44 or 45, wherein,

the resource type of the first resource set is a periodic resource or a semi-continuous resource, and/or the resource type of the second resource set is a periodic resource or a semi-continuous resource; or,

the resource type of the first resource set is non-periodic resource and/or the resource type of the second resource set is non-periodic resource.
The method of any one of claims 44 to 46,

the terminal equipment supports that SRS for antenna switching is transmitted simultaneously on a plurality of carriers, wherein the plurality of carriers correspond to different working frequency bands.
The method of claim 26, wherein the method further comprises:

The network equipment sends first indication information to the terminal equipment;

wherein, the first indication information is used for indicating: in the case that the terminal device does not support simultaneous transmission of SRS for antenna switching in multiple carriers, and SRS resources for transmitting the first SRS overlap with SRS resources for transmitting the second SRS in a time domain, the terminal device preferentially transmits a target SRS;

the target SRS is an SRS sent on a carrier with a smaller carrier index corresponding to the first SRS and the second SRS; or the target SRS is an SRS which is executing SRS antenna switching in the first SRS and the second SRS; or the target SRS triggers an earlier SRS for downlink control information in the first SRS and the second SRS.
The method of any one of claims 26 to 48, further comprising:

the network equipment sends first configuration information to the terminal equipment;

the terminal equipment determines an SRS transmission mode according to the first configuration information, where the first configuration information includes at least one of the following: configuration information of the first resource set and configuration information of the second resource set.
The method of claim 49, wherein the method further comprises:

the network equipment receives first capability information sent by the terminal equipment; the first capability information at least comprises whether the terminal equipment supports sending SRS for antenna switching simultaneously on a plurality of carriers in a scene of sharing a receiving antenna, wherein the plurality of carriers correspond to different working frequency bands;

the network device determines the first configuration information according to the first capability information.
A terminal device, comprising:

a communication unit, configured to send a first SRS for antenna switching on SRS resources in a first sounding reference signal SRS resource set in a first resource set, and/or send a second SRS for antenna switching on SRS resources in a second SRS resource set in a second resource set;

the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.
A network device, comprising:

a communication unit, configured to receive a first SRS for antenna switching sent by a terminal device on an SRS resource in a first sounding reference signal SRS resource set in a first resource set, and/or receive a second SRS for antenna switching sent by the terminal device on an SRS resource in a second SRS resource set in a second resource set;

the SRS resources in the first resource set belong to a first working frequency band, the SRS resources in the second resource set belong to a second working frequency band, the frequency range corresponding to the first working frequency band is different from the frequency range corresponding to the second working frequency band, the terminal equipment shares a receiving antenna on the first working frequency band and the second working frequency band, the first resource set comprises one or more SRS resource sets, and the second resource set comprises one or more SRS resource sets.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 1 to 25.
A network device, comprising: a processor and a memory for storing a computer program, the processor being for invoking and running the computer program stored in the memory, performing the method of any of claims 26 to 50.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1 to 25.
A chip, comprising: a processor for calling and running a computer program from a memory, causing a device on which the chip is mounted to perform the method of any of claims 26 to 50.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 25.
A computer readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 26 to 50.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 25.
A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 26 to 50.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 1 to 25.
A computer program, characterized in that the computer program causes a computer to perform the method of any one of claims 26 to 50.