Communication method and device, terminal equipment and network equipment

Abstract

The invention discloses a communication method and device, terminal equipment and network equipment, and relates to the technical field of communication. As the number of receiving antennas of the receiver is increased, in order to ensure that the receiver has low complexity under the condition of a large number of receiving antennas, the receiver may be split into a plurality of sub-receivers, so that each sub-receiver has a small number of receiving antennas, and in order to realize SRS antenna switching under the condition of the plurality of sub-receivers, the sub-receivers have a small number of receiving antennas. Therefore, each SRS resource set in the at least one SRS resource set corresponds to one set group, or each SRS resource in all the SRS resources of the at least one SRS resource set corresponds to one resource group, or each SRS port in all the SRS ports of the at least one SRS resource set corresponds to one port group, so that the SRS is grouped; sRS antenna switching under a plurality of sub-receivers is adapted through SRS grouping, and uplink transmission performance and reliability are guaranteed.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a communication method and apparatus, a terminal device, and a network device. Background Art

[0002] In a time division duplex (TDD) system, the uplink and downlink channels have reciprocity. Therefore, a network device can perform channel estimation on a downlink channel corresponding to an uplink channel according to a sounding reference signal (SRS) on the uplink channel, so as to obtain downlink channel state information (DL CSI).

[0003] Limited by factors such as antenna cost and uplink rate requirements, the number of transmit channels of a terminal device is usually less than the number of receive channels, that is, the number of transmit antennas is less than the number of receive antennas, resulting in different uplink and downlink antenna transceiver capabilities or limited transmit antenna capabilities of the terminal device. Thus, since the SRS needs to be sent on a transmit antenna and the number of transmit antennas is less than the number of receive antennas, the SRS can only perform channel estimation on some downlink channels. To enable the SRS to perform channel estimation on all downlink channels, the 3rd Generation Partnership Project (3GPP) introduced SRS antenna switching (also known as SRS antenna rotation).

[0004] Currently, the related research on SRS antenna switching regards a terminal device as a receiver with receive antennas. However, as the number of receive antennas of the receiver increases, to ensure low complexity of the receiver with a large number of receive antennas, the receiver may be split into multiple sub-receivers, such that each sub-receiver has a smaller number of receive antennas. At this time, how to perform SRS antenna switching under multiple sub-receivers still needs further research. Summary of the Invention

[0005] This application provides a communication method and apparatus, a terminal device, and a network device, in order to solve the problem of performing SRS antenna switching under multiple sub-receivers and ensure uplink transmission performance and reliability.

[0006] In a first aspect, a communication method of this application includes:

[0007] Obtain at least one set of sounding reference signal (SRS) resources, where the at least one set of SRS resources is used for antenna switching. Each set of SRS resources in the at least one set of SRS resources includes at least one SRS resource, and each SRS resource includes at least one SRS port.

[0008] Each set of SRS resources in the at least one set of SRS resources corresponds to a set group identification ID; or,

[0009] Each SRS resource among all the SRS resources in the at least one set of SRS resources corresponds to a resource group; or,

[0010] Each SRS port among all the SRS ports in the at least one set of SRS resources corresponds to a port group.

[0011] It can be seen that in this embodiment, the SRS can be grouped by making each set of SRS resources in the at least one set of SRS resources correspond to a set group, or making each SRS resource among all the SRS resources in the at least one set of SRS resources correspond to a resource group, or making each SRS port among all the SRS ports in the at least one set of SRS resources correspond to a port group, so as to adapt the SRS antenna switching under multiple sub - receivers through SRS grouping and ensure the uplink transmission performance and reliability.

[0012] In a second aspect, a communication method of the present application includes:

[0013] Send information for configuring at least one set of sounding reference signal (SRS) resources, where the at least one set of SRS resources is used for antenna switching. Each set of SRS resources in the at least one set of SRS resources includes at least one SRS resource, and each SRS resource includes at least one SRS port.

[0014] Each set of SRS resources in the at least one set of SRS resources corresponds to a set group identification ID; or,

[0015] Each SRS resource among all the SRS resources in the at least one set of SRS resources corresponds to a resource group; or,

[0016] Each SRS port among all the SRS ports in the at least one set of SRS resources corresponds to a port group.

[0017] In a third aspect, a communication device of the present application includes:

[0018] An acquisition unit, configured to acquire at least one sounding reference signal (SRS) resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0019] Each SRS resource set in the at least one SRS resource set corresponds to a set group identification ID; or,

[0020] Each SRS resource among all the SRS resources in the at least one SRS resource set corresponds to a resource group; or,

[0021] Each SRS port among all the SRS ports in the at least one SRS resource set corresponds to a port group.

[0022] In a fourth aspect, a communication device according to the present application includes:

[0023] A sending unit, configured to send information for configuring at least one sounding reference signal (SRS) resource set, where the at least one SRS resource set is used for antenna switching, each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0024] Each SRS resource set in the at least one SRS resource set corresponds to a set group identification ID; or,

[0025] Each SRS resource among all the SRS resources in the at least one SRS resource set corresponds to a resource group; or,

[0026] Each SRS port among all the SRS ports in the at least one SRS resource set corresponds to a port group.

[0027] In a fifth aspect, the steps in the method designed in the first aspect are applied to a terminal device or within a terminal device.

[0028] In a sixth aspect, the steps in the method designed in the second aspect are applied to a network device or within a network device.

[0029] In a seventh aspect, a terminal device according to the present application includes a processor, a memory, and a computer program or instruction stored on the memory. The processor executes the computer program or instruction to implement the steps in the method designed in the first aspect.

[0030] In an eighth aspect, a network device according to the present application includes a processor, a memory, and a computer program or instruction stored in the memory. The processor executes the computer program or instruction to implement the steps in the method designed in the second aspect above.

[0031] In a ninth aspect, a chip according to the present application includes a processor. The processor executes the steps in the method designed in the first aspect or the second aspect above.

[0032] Optionally, the chip further includes a communication interface. The processor executes the sending step and / or the receiving step in the method designed in the first aspect or the second aspect above through the communication interface.

[0033] In a tenth aspect, a chip module according to the present application includes a chip, and the chip includes a processor. The processor executes the steps in the method designed in the first aspect or the second aspect above.

[0034] Optionally, the chip module further includes a transceiver component. The processor executes the sending step and / or the receiving step in the method designed in the first aspect or the second aspect above through the transceiver component.

[0035] In an eleventh aspect, a computer-readable storage medium according to the present application stores a computer program or instruction. When the computer program or instruction is executed, the steps in the method designed in the first aspect or the second aspect above are implemented. For example, the computer program or instruction is executed by a processor.

[0036] In a twelfth aspect, a computer program product according to the present application includes a computer program or instruction. When the computer program or instruction is executed, the steps in the method designed in the first aspect or the second aspect above are executed. For example, the computer program or instruction is executed by a processor.

[0037] In a thirteenth aspect, a communication system according to the present application includes a communication device (for example, a terminal device or a chip) for executing any one of the methods provided in the first aspect, and / or includes a communication device (for example, a network device or a chip) for executing any one of the methods provided in the second aspect.

[0038] In a fourteenth aspect, a communication system according to the present application includes the terminal device provided in the seventh aspect, and / or the network device provided in the eighth aspect.

[0039] The beneficial effects brought by the technical solutions of the second aspect to the fourteenth aspect can refer to the technical effects brought by the technical solution of the first aspect, which will not be elaborated here. Description of the Drawings

[0040] Figure 1It is a schematic diagram of the architecture of a communication system according to an embodiment of the present application;

[0041] Figure 2 It is a schematic diagram of the architecture of another communication system according to an embodiment of the present application;

[0042] Figure 3 It is a schematic flowchart of a communication method according to an embodiment of the present application;

[0043] Figure 4 It is a block diagram of the functional units of a communication device according to an embodiment of the present application;

[0044] Figure 5 It is a block diagram of the functional units of another communication device according to an embodiment of the present application;

[0045] Figure 6 It is a schematic diagram of the structure of a terminal device according to an embodiment of the present application;

[0046] Figure 7 It is a schematic diagram of the structure of a network device according to an embodiment of the present application. Detailed implementation manners

[0047] It should be understood that the terms "first", "second", etc. involved in the embodiments of the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, software, product or device that includes a series of steps or units is not limited to the listed steps or units, but may also include steps or units not listed, or may also include other steps or units inherent to these processes, methods, products or devices.

[0048] The "embodiments" involved in the embodiments of the present application mean that the specific features, structures or characteristics described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0049] The "and / or" in the embodiments of the present application describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent the following three situations: A exists alone; A and B exist simultaneously; B exists alone. Among them, A and B may be singular or plural.

[0050] In the embodiments of the present application, the symbol " / " may indicate that the related objects before and after are in an "or" relationship. Of course, the symbol " / " may also indicate that the related objects before and after are in an "and" relationship. For example, A / B may represent the following three cases: A, B, and A and B. Each of A and B may be an element or a set containing one or more elements.

[0051] The "at least one (item)" or its similar expression in the embodiments of the present application refers to any combination of these items, including any combination of single item (s) or plural items (s), which means one or more, and multiple means two or more. For example, at least one (item) of a, b, or c may represent the following seven cases: a, b, c, a and b, a and c, b and c, and a, b, and c. Each of a, b, and c may be an element or a set containing one or more elements.

[0052] The "equal to" in the embodiments of the present application can be used in combination with "greater than", applicable to the technical solutions adopted when greater than, and can also be used in combination with "less than", applicable to the technical solutions adopted when less than. When "equal to" is used in combination with "greater than", it is not used in combination with "less than"; when "equal to" is used in combination with "less than", it is not used in combination with "greater than".

[0053] In the embodiments of the present application, those related to "of", "corresponding / relevant / related", "corresponding", "indicated", "associated", etc. can sometimes be used interchangeably with each other.

[0054] In the embodiments of the present application, those related to "associated with", "corresponding to", "corresponding", "being", "of", "being", "belonging to", "being regarded as", etc. can sometimes be used interchangeably with each other.

[0055] The "connection" in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and no limitation is made thereto.

[0056] The "network" in the embodiments of the present application can be expressed as the same concept as the "system", and the communication system is the communication network.

[0057] The related content, concepts, meanings, technical problems, technical solutions, and beneficial effects involved in the embodiments of the present application will be described below.

[0058] I. Communication System

[0059]

Communication System

[0060] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolved NR system, LTE-based Access to Unlicensed Spectrum (LTE-U) system, NR-based Access to Unlicensed Spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wi-Fi), 6th-Generation (6G) communication system or other communication systems, etc.

[0061] It should be noted that the number of connections supported by traditional communication systems is limited and easy to implement. However, with the development of communication technologies, communication systems can not only support traditional communication systems, but also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine type communication (MTC), vehicle-to-vehicle (V2V) communication, vehicle-to-everything (V2X) communication, narrow band internet of things (NB-IoT) communication, etc. Therefore, the technical solutions of the embodiments of the present application can also be applied to the above-mentioned communication systems.

[0062] In addition, the technical solutions of the embodiments of the present application can be applied to scenarios such as beamforming, carrier aggregation (CA), dual connectivity (DC), or standalone (SA) deployment.

[0063] In the embodiments of the present application, the spectrum used for communication between the terminal device and the network device may be an authorized frequency band or an unauthorized frequency band, and this is not limited. Additionally, the unauthorized frequency band can be understood as a shared frequency band, and the authorized spectrum can be understood as a non-shared frequency band.

[0064] Since the embodiments of the present application describe each embodiment in combination with the terminal device and the network device, the terminal device and the network device involved will be specifically described below.

[0065]

Terminal Device

[0066] The terminal device can be a device with transceiver functions, and can also be referred to as a terminal, a user equipment (UE), a remote UE, a relay UE, an access terminal device, a user unit, a user station, a mobile station, a mobile device, a remote station, a user terminal device, a smart terminal device, a wireless communication device, a user agent, or a user device. It should be noted that a relay UE is a terminal device that can provide relay forwarding services for other terminal devices (including remote terminal devices).

[0067] For example, the terminal device can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned autonomous driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0068] For another example, the terminal device may also be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in a next-generation communication system (such as an NR communication system, 6G communication system), or a terminal device in a future evolved public land mobile network (PLMN), etc., and no specific limitation is made thereto.

[0069] Optionally, the terminal device may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it may be deployed on water (such as a ship, etc.); it may be deployed in the air (such as an airplane, balloon, satellite, etc.).

[0070] Optionally, the terminal device may include a device with wireless communication function, such as a chip system, chip, chip module. By way of example, the chip system may include a chip and may also include other discrete devices.

[0071] Optionally, the terminal device may be a chip, chip module, device, unit, etc., and no specific limitation is made thereto.

[0072]

Network device

[0073] The network device may be a device with transceiver function and may be used for communication with the terminal device.

[0074] Optionally, the network device may be responsible for radio resource management (RRM) on the air interface side, quality of service (QoS) management, data compression and encryption, data transceiver, etc.

[0075] Optionally, the network device may include a base station (BS) in a communication system or a device deployed in a radio access network (RAN) for providing wireless communication function, that is, the network device may include a device in the RAN.

[0076] For example, the devices in the RAN may include an evolved Node B (eNB or eNodeB) in an LTE communication system, a next-generation evolved Node B (ng-eNB) in an NR communication system, a next-generation Node B (gNB) in an NR communication system, a master node (MN) in a dual-connection architecture, a secondary node (SN) in a dual-connection architecture, etc., and no specific limitation is made thereto.

[0077] Optionally, the network device may include a device in a core network (CN).

[0078] For example, the devices in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0079] Optionally, the network device may also be an access point (AP) in a WLAN, a relay station, a communication device in a future-evolved PLMN network, a communication device in an NTN network, etc.

[0080] Optionally, the network device may include a device having a function of providing wireless communication for a terminal device, such as a chip system, a chip, or a chip module. Exemplarily, the chip system may include a chip, or may include other discrete devices.

[0081] Optionally, the network device may be a transmission and reception point (TRP).

[0082] Optionally, the network device may communicate with an Internet Protocol (IP) network. For example, the Internet, a private IP network, or other data networks, etc.

[0083] Optionally, the network device may include an independent node to implement the functions of the above base station, or may include two or more independent nodes to implement the functions of the above base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may further include an active antenna unit (AAU). Among them, the CU implements a part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU may implement some physical layer processing functions, radio frequency processing, and functions related to active antennas. Since the information of the RRC layer will ultimately become the information of the PHY layer, or is transformed from the information of the PHY layer, therefore, in this network deployment, high-layer signaling (such as RRC signaling) can be considered to be generated by the CU and sent by the DU, or jointly sent by the DU and the AAU. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU may be classified as a RAN device, or the CU may also be classified as a core network device, and no specific limitation is made thereto.

[0084] Optionally, the network device may be any site in a multi-site that performs coherent joint transmission (CJT) with the terminal device, or another site outside the multi-site, or another network device that communicates with the terminal device over the network, without specific limitation thereto. Among them, multi-site coherent joint transmission may be joint coherent transmission by multiple sites, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission. Names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site coherent joint transmission may be Remote Radio Heads (RRHs), Transmission and Reception Points (TRPs), etc., without specific limitation thereto.

[0085] Optionally, the network device may be any site in a multi-site that performs non-coherent joint transmission (NCJT) with the terminal device, or another site outside the multi-site, or another network device that communicates with the terminal device over the network, without specific limitation thereto. Among them, multi-site non-coherent joint transmission may be joint non-coherent transmission by multiple sites, or different data belonging to the same PDSCH are sent from different sites to the terminal device. Names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site non-coherent joint transmission may be RRHs, TRPs, etc., without specific limitation thereto. The transmission scheme of multiple TRPs may include a single-downlink control information based M-TRP (S-DCI based M-TRP) transmission scheme or a multiple-downlink control information based M-TRP (M-DCI based M-TRP) transmission scheme.

[0086] The S-DCI based M-TRP can be embodied as that one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indicator (SRI) fields, etc. Of course, the S-DCI based M-TRP can also be embodied by other concepts / parameters, which are not specifically limited herein.

[0087] The M-DCI based M-TRP can be embodied as that the network configures the values of multiple control resource set pool indexes (control resource set pool index, CORESET pool index, hereinafter referred to as CORESETPoolIndex), such as CORESETPoolIndex = 0, CORESETPoolIndex = 1. Of course, the M-DCI based M-TRP can be embodied by other concepts / parameters, which are not specifically limited herein.

[0088] It should be noted that the TRP of this application is not limited to the CJT or NCJT scenarios, and can also be applicable to other scenarios, which are not specifically limited herein.

[0089] Optionally, the network device can have mobility characteristics. For example, the network device can be a mobile device. Optionally, the network device can be a satellite or a balloon station. For example, the satellite can be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device can also be a base station located on land, water, etc.

[0090] Optionally, the network device can serve a cell, and the terminal device in the cell can communicate with the network device through transmission resources (such as spectrum resources). Among them, the cell can be a macro cell, a small cell, a metro cell, a micro cell, a pico cell, a femto cell, etc.

[0091] Optionally, the network device can be a chip, a chip module, a device, a unit, etc., which are not specifically limited herein.

[0092] 4. Example Explanation

[0093] An exemplary explanation of the communication system according to the embodiments of the present application will be given below.

[0094] Exemplarily, for the network architecture of a communication system according to the embodiments of the present application, reference can be made to Figure 1 . As Figure 1 shown, the communication system 10 may include a network device 110 and a terminal device 120. The terminal device 120 may communicate with the network device 110 wirelessly.

[0095] Figure 1 This is only an example illustration of the network architecture of a communication system, and does not limit the network architecture of the communication system according to the embodiments of the present application.

[0096] For example, the communication system 10 may further include a server or other devices.

[0097] For another example, in addition to the network device 110, the communication system 10 may include other network devices.

[0098] For another example, in addition to the terminal device 120, the communication system 10 may include other terminal devices.

[0099] II. Grouping of SRS

[0100]

SRS

[0101] SRS is an important uplink reference signal in a communication system and is widely used in various functions in a communication system (such as a 5G NR system). For example, it is used for uplink channel estimation; for the terminal device detection process for downlink CSI acquisition; for uplink beam management; for positioning functions; to cooperate with codebook-based uplink transmission, such as frequency domain scheduling and the determination of Rank / precoding matrix indicator (PMI) / modulation coding scheme (MCS); to cooperate with non-codebook-based uplink transmission, such as frequency domain scheduling and the determination of sounding reference signal resource indicator (SRI) / MCS; and so on.

[0102] SRS can support three different transmission modes: periodic, semi-persistent, and aperiodic.

[0103] The periodic SRS refers to the periodic transmission of SRS, and its period and slot offset can be configured by higher layer signaling (such as RRC signaling).

[0104] If the terminal device receives the relevant configuration information configured by higher layer signaling, the terminal device transmits SRS at a certain period according to the relevant configuration information until the relevant configuration information becomes invalid.

[0105] The spatial relation information of the periodic SRS can also be configured by higher layer signaling (such as RRC signaling or MAC signaling), and / or DCI configuration / indication. Among them, the spatial relation information is used to implicitly indicate the transmitted beam, and the spatial relation information can indicate the channel state information reference signal (CSI-RS), the synchronization signal and PBCH block (SSB), or SRS. Therefore, the terminal device can determine the transmission beam of the SRS resource according to the reception beam of the CSI-RS / SSB indicated by the spatial relation information, or determine the transmission beam of the SRS according to the transmission beam of the reference SRS.

[0106] The period and slot offset of the semi-persistent SRS can be configured by higher layer signaling (such as RRC signaling), but its activation signaling and deactivation signaling can be carried by the control element of the media access control layer (MAC CE). Among them, the terminal device starts to transmit SRS periodically after receiving the activation signaling until it receives the deactivation signaling. At the same time, the spatial relation information of the semi-persistent SRS is carried together with the MAC CE that activates the SRS.

[0107] After the terminal device receives the period and slot offset configured by RRC signaling, it determines the time slot for transmitting SRS according to the following formula:

[0108]

[0109] Where, represents the number of time slots in a system frame in the subcarrier configuration μ, n f represents the system frame number (SFN), represents the time slot index number in a system frame in the subcarrier configuration μ, T offset represents the slot offset configured by higher layer signaling, T SRSIndicates the period configured by high-layer signaling.

[0110] Aperiodic SRS refers to the transmission of SRS in an aperiodic manner.

[0111] The network device can trigger the aperiodic transmission of SRS through DCI. In addition, the trigger signaling for triggering the aperiodic SRS transmission can be carried by the DCI used to schedule the physical uplink shared channel (PUSCH) or PDSCH in the UE-specific search space, or can be carried by the DCI format 2_3 in the common search space. Among them, DCI format 2_3 can not only be used to trigger the aperiodic SRS transmission, but also be used to configure the transmit power control command (TPC command) for the SRS transmission on a group of UEs or a group of carriers at the same time. In addition, DCI format 2_3 can also carry a 2-bit SRS request to trigger the aperiodic transmission of SRS.

[0112] When the terminal device receives the aperiodic SRS trigger signaling (such as DCI), it performs aperiodic SRS transmission based on the SRS resource set indicated by the trigger signaling. Among them, the slot offset between the trigger signaling and the aperiodic SRS transmission is configured by high-layer signaling (such as RRC signaling) and / or indicated / configured by DCI. At the same time, the network device pre-indicates to the terminal device the configuration parameters of each SRS resource set through high-layer signaling, including time-frequency resources, etc. In addition, for each SRS resource in the triggered SRS resource set, the terminal device can also determine the transmit beam used to transmit the corresponding SRS of the SRS resource through the spatial correlation information of the SRS resource, and the spatial correlation information can be configured for each SRS resource through RRC signaling / MAC signaling / DCI, etc.

[0113]

SRS Resource

[0114] High-layer parameters (such as SRS-ResourceSet or SRS-PosResourceSet) can configure at least one SRS resource set for the terminal device. Each SRS resource set can include K (K≥1) SRS resources (SRS resource), and the SRS resource can be configured by high-layer parameters (such as SRS-Resource or SRS-PosResource), and the maximum value of K can be determined by the terminal device capability.

[0115] The applicability of the SRS resource set is configured by higher layer parameters. For example, the usage field in the higher layer parameter SRS-ResourceSet can configure SRS antenna switching (also known as SRS antenna rotation).

[0116] An SRS resource can be configured by higher layer parameters (such as SRS-Resource or SRS-PosResource), including:

[0117] 1) An SRS port, and the SRS port index number in this SRS port is represented as That is to say, the higher layer parameter (such as nrofSRS-Ports) configures the maximum number of SRS ports included in the SRS resource to be L, and the port index number of SRS port i (i ∈ {0, 1,..., L - 1}) in the L SRS ports is represented as p i = 1000 + i.

[0118] For example, when For 5 SRS ports, the port index number of SRS port 0 is p 0 = 1000, the port index number of SRS port 1 is p 1 = 1001, the port index number of SRS port 2 is 1002, the port index number of SRS port 3 is 1003, and the port index number of SRS port 4 is 1004.

[0119] The maximum number of SRS ports included in the SRS resource (i.e., the value of) can be configured by higher layer parameters (such as nrofSRS-Ports). If this higher layer parameter is not configured, then In addition, when the SRS resource is in an SRS resource set where the higher layer parameter (such as usage) is set to 'nonCodebook', or when the SRS resource is where the higher layer parameter (such as usage) is set to "nonCodebook", p i = 1000 + i.

[0120] 2) A number of consecutive OFDM symbols. Among them, The value of is configured by higher layer parameters.

[0121] For example, the field nrofSymbols in the higher layer parameter resourceMapping configures

[0122] 3) The time-domain starting position l of the SRS 0 . Among them, The offset l offset ∈ {0, 1,..., 13} counts the OFDM symbols backward from the end of the time slot, and is given by a higher-layer parameter, and

[0123] For example, the field startPosition in the higher-layer parameter resourceMapping configures l 0 .

[0124] 4) The frequency-domain starting position k of the SRS 0 .

[0125]

SRS Antenna Switching

[0126] SRS antenna switching can utilize the reciprocity of the uplink and downlink channels, and perform channel estimation on the downlink channel corresponding to the uplink channel through the SRS on the uplink channel, so as to obtain the downlink CSI.

[0127] The SRS antenna switching (SRS-TxPortSwitch) mode supported by the terminal device can be xTyR (T represents the transmit antenna port, and R represents the receive antenna port). Among them, x can be physical, logical, etc.; y can be physical, logical, etc., and no specific restrictions are made on this. In a possible implementation, x represents the number of transmit antenna ports used simultaneously in one transmission, and y represents the number of receive antenna ports used simultaneously in one reception.

[0128] Optionally, xTyR includes the following: 1T2R, 2T4R, 1T4R, 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 1T=1R, 2T=2R, 4T=4R, 8T=8R, etc.

[0129] For 1T2R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets (SRS resource set), each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port; the SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports (UE antenna port).

[0130] For 1T2R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS ports of each SRS resource are associated with different terminal device antenna ports. For 1T4R, the network device can configure 0 or 1 periodic or semi-persistent SRS resource sets; each SRS resource set includes 4 SRS resources, each SRS resource includes 1 SRS port, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0131] For 1T4R, the network device can configure 0, 1, 2, or 4 aperiodic SRS resource sets. A total of 4 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0132] For 2T4R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets; each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0133] For 2T4R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0134] For 1T6R, the network device can configure 0 or 1 periodic SRS resource set. Each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0135] For 1T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets; each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0136] For 1T6R, the network device can configure 0, 1, 2, or 3 aperiodic SRS resource sets. A total of 6 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0137] For 1T8R, the network device can configure 0 or 1 set of SRS resources for a cycle; each set of SRS resources includes 8 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same set of SRS resources are associated with different antenna ports of the terminal device.

[0138] For 1T8R, the network device can configure 0, 1, or 2 sets of semi-persistent SRS resources; each set of SRS resources includes 8 SRS resources, and each SRS resource includes 1 SRS port. The SRS ports of different SRS resources in the same set of SRS resources are associated with different antenna ports of the terminal device.

[0139] For 1T8R, the network device can configure 0, 2, 3, or 4 sets of aperiodic SRS resources, and a total of 8 SRS resources can be configured. Each SRS resource includes 1 SRS port, and the SRS port of each SRS resource is associated with a different antenna port of the terminal device.

[0140] For 2T6R, the network device can configure 0 or 1 set of SRS resources for a cycle; each set of SRS resources includes 3 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same set of SRS resources are associated with different antenna ports of the terminal device.

[0141] For 2T6R, the network device can configure 0, 1, or 2 sets of semi-persistent SRS resources; each set of SRS resources includes 3 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same set of SRS resources are associated with different antenna ports of the terminal device.

[0142] For 2T6R, the network device can configure 0, 1, 2, or 3 sets of aperiodic SRS resources, and a total of 3 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS port of each SRS resource is associated with a different antenna port of the terminal device.

[0143] For 2T8R, the network device can configure 0 or 1 set of SRS resources for a cycle; each set of SRS resources includes 4 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same set of SRS resources are associated with different antenna ports of the terminal device.

[0144] For 2T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0145] For 2T8R, the network device can configure 0, 1, 2, 3, or 4 aperiodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 2 SRS ports, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0146] For 4T8R, the network device can configure 0 or 1 periodic SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0147] For 4T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports. The SRS ports of different SRS resources in the same SRS resource set are associated with different terminal device antenna ports.

[0148] For 4T8R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 4 SRS ports, and the SRS ports of each SRS resource are associated with different terminal device antenna ports.

[0149] For 1T = 1R, 2T = 2R, 4T = 4R, or 8T = 8R, at most 2 or 3 SRS resource sets can be configured. Each SRS resource set includes 1 SRS resource, and the SRS ports of each SRS resource are 1, 2, 4, or 8.

[0150] In summary, for periodic or semi-persistent SRS resource sets, perhaps only one SRS resource set is needed to complete an antenna handover, and the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the number of receiving antennas of the terminal device.

[0151] For aperiodic SRS resource sets, perhaps all SRS resources of all SRS resource sets are needed to complete an antenna handover, and the sum of the SRS port numbers of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device.

[0152]

Grouping of SRS

[0153] Currently, the related research on SRS antenna switching regards the terminal device as a receiver with receiving antennas. However, as the number of receiving antennas of the receiver increases, in order to ensure low complexity of the receiver with a large number of receiving antennas, the receiver may be split into multiple sub-receivers, so that each sub-receiver has a smaller number of receiving antennas.

[0154] It should be noted that the "receiver" and "sub-receiver" mentioned in this embodiment can be logical units, physical units, entity units, hardware units, or software units, and no specific limitation is made thereto.

[0155] This embodiment can determine whether to split the receiver by whether the number of receiving antennas of the terminal device exceeds a preset value (such as 4). If the number of receiving antennas is less than or equal to the preset value, the receiver is not split; if the number of receiving antennas is greater than the preset value, the receiver is split. Here, the "number of receiving antennas of the terminal device" can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

[0156] For example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T = 1R, 2T = 2R, 4T = 4R, etc., the terminal device has a 2RX receiver, a 4Rx receiver, etc. At this time, these receivers are not split.

[0157] For another example, taking the preset value of 4 as an example, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T = 8R, etc., the terminal device has a 6Rx receiver, an 8Rx receiver, etc. At this time, the 6Rx receiver can be split into a 2Rx receiver and a 4Rx receiver, or can be split into three 2Rx receivers, etc.; the 8Rx receiver can be split into a 4Rx receiver and a 4Rx receiver, or can be split into a 2Rx receiver and a 6Rx receiver, or can be split into two 2Rx receivers and a 4Rx receiver, or can be split into four 2Rx receivers, etc.

[0158] Meanwhile, in SRS antenna switching, since the sum of the SRS port numbers of all SRS resources within each periodic or semi-persistent SRS resource set is equal to the number of receiving antennas of the terminal device, or the sum of the SRS port numbers of all SRS resources in all aperiodic SRS resource sets is equal to the number of receiving antennas of the terminal device, this embodiment can also determine whether to split the receiver by checking whether the sum of the SRS port numbers exceeds a preset value. If the sum of the SRS port numbers is less than or equal to the preset value, the receiver is not split; if the sum of the SRS port numbers is greater than the preset value, the receiver is split.

[0159] In addition, the receiver can be implemented by an antenna panel, and multiple sub-receivers can be implemented by multiple antenna panels. Meanwhile, for multiple sub-receivers / multiple antenna panels, the terminal device receive antenna ports (UE receive antenna port) need to be grouped to obtain multiple terminal device antenna port groups, and the multiple terminal device antenna port groups correspond one-to-one with the multiple sub-receivers / multiple antenna panels.

[0160] It should be noted that the "receiver", "sub-receiver", "receiving antenna receiver", "antenna panel", and "terminal device antenna port group" mentioned in this embodiment can be logical units, physical units, entity units, hardware units, or software units, and no specific limitation is made thereto.

[0161] However, for multiple sub-receivers / multiple antenna panels / multiple terminal device antenna port groups, when obtaining downlink CSI using SRS in a TDD communication system, since the downlink CSI needs to be separated for each sub-receiver / each antenna panel / each terminal device antenna port group, that is, each sub-receiver / each antenna panel / each terminal device antenna port group corresponds to one downlink CSI, it is necessary to group the SRS to obtain multiple SRS groups and establish a one-to-one correspondence between the multiple SRS groups and the multiple sub-receivers / multiple antenna panels / multiple terminal device antenna port groups. In this way, through the correspondence, the network device can obtain the downlink CSI corresponding to each terminal device antenna port group / antenna panel / sub-receiver, ensuring the accuracy of reception and processing.

[0162] For example, taking the downlink CSI as downlink precoding (DL precoding) and the 8RX receiver being split into two 4Rx sub-receivers as an example, as Figure 2 shown. In Figure 2In order to reduce the complexity of the terminal device 210, the terminal device 210 implements 8 receive antennas through 2 independent sub-receivers each with 4 receive antennas (i.e., the 4Rx sub-receiver 2101 and the 4Rx sub-receiver 2102). That is to say, the 8Rx receiver is split into 2 4Rx sub-receivers. Among them, the 4Rx sub-receiver 2101 corresponds to the receive antenna port group 0, and the 4Rx sub-receiver 2102 corresponds to the receive antenna port group 1. In addition, the network device 220 will send multiple beams, and the beam 2201 faces the 4Rx sub-receiver 2101, and the beam 2202 faces the 4Rx sub-receiver 2102.

[0163] Since downlink precoding needs to be separated for each receive antenna port group, that is, each sub-receiver (every 4 receive antennas) corresponds to a downlink precoding. For a TDD communication system, since downlink precoding is based on SRS measurement, it is necessary to group the SRSs so as to achieve a one-to-one correspondence between 2 SRS groups and 2 receive antenna port groups / 2 sub-receivers / 2 antenna panels.

[0164] In this way, when the 4Rx sub-receiver 2101 sends the SRS corresponding to the receive antenna port group 0 to the network device 220, and the 4Rx sub-receiver 2102 sends the SRS corresponding to the receive antenna port group 1 to the network device 220, the network device 220 can obtain the downlink precoding corresponding to the 4Rx sub-receiver 2101 according to the SRS corresponding to the receive antenna port group 0, and the network device 220 can obtain the downlink precoding corresponding to the 4Rx sub-receiver 2102 according to the SRS corresponding to the receive antenna port group 1.

[0165] It should be noted that this embodiment involves two cases of not splitting the receiver and splitting the receiver. When not splitting the receiver, the terminal device still has a single receiver / a single antenna panel / a single receive antenna port group, and the receive antenna ports of the terminal device do not need to be grouped. At this time, this embodiment does not need to group the SRSs. When splitting the receiver, the terminal device has multiple sub-receivers / multiple antenna panels / multiple receive antenna port groups, and the receive antenna ports of the terminal device need to be grouped. At this time, this embodiment needs to group the SRSs.

[0166] Since the network device will configure at least one SRS resource set for the terminal device, each SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port, so the grouping of SRSs in this embodiment involves grouping SRS resource sets / SRS resources / SRS ports, and the following will be specifically described in multiple schemes respectively.

[0167] It should be noted that each solution can be independent, merged, and associated. The same content between different solutions can be cross-referenced, and the same content will not be elaborated in this embodiment.

[0168]

Solution 1

[0169] a. Description

[0170] In "Solution 1", in this embodiment, the SRS resource sets are grouped. Therefore, for at least one SRS resource set configured by the network, each SRS resource set corresponds to a group. For the sake of easy distinction, the "group" here is called "set group", and the set group can have a unique identifier (ID) or index. This ID can be called "set group ID", and this index can be called "set group index", and the set group ID / set group index can be used to identify the group / set group to which the SRS resource set belongs. In the following, the "set group" mentioned in this embodiment can be replaced / equated / regarded as "set group ID / set group index", and no specific restrictions are made on this. Hereinafter, this embodiment will be described by taking "set group ID" as an example, and "set group ID" can be replaced with "set group index" to implement the same technical solution, and this will not be elaborated further.

[0171] Optionally, the set group ID can be configured by the network. For example, the network device can display and configure the set group ID.

[0172] It should be noted that SRS resource sets with the same set group ID belong to the same group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver; SRS resource sets with different set group IDs belong to different groups and correspond to different terminal device receiving antenna port groups / antenna panels / sub-receivers. Among them, the terminal device receiving antenna port group can have a unique ID or index, and this ID / index can be called "terminal device receiving antenna port group ID / terminal device receiving antenna port group index". Hereinafter, this embodiment will be described by taking "terminal device receiving antenna port group ID" as an example, and "terminal device receiving antenna port group ID" can be replaced with "terminal device receiving antenna port group index" to implement the same technical solution, and this will not be elaborated further.

[0173] For example, the network device configures 3 SRS resource sets. The set group corresponding to the first SRS resource set is X (X represents the set group ID), the set group corresponding to the second SRS resource set is Y (Y represents the set group ID), and the set group corresponding to the third SRS resource set is X. It can be seen that the first SRS resource set and the third SRS resource set belong to the same group.

[0174] In this way, when the network device obtains the downlink CSI based on all the SRS resources in the SRS resource set within the same set group, the downlink CSI is the downlink CSI of the receiving antenna port group / antenna panel / sub-receiver corresponding to the set group of the terminal device, so as to perform downlink channel evaluation on the receiving antenna port group / antenna panel / sub-receiver according to the downlink CSI.

[0175] Optionally, each SRS resource set corresponds to a set group, which can be network-configured, pre-configured, specified by a protocol, or determined according to certain rules.

[0176] For example, taking network configuration as an example, the network device will send high-layer signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS resource set to correspond to a set group.

[0177] Optionally, the at least one SRS resource set can correspond to at least one set group. The set group corresponding to each SRS resource set is one of the at least one set group, and all the SRS resources within each SRS resource set have the same set group, so as to know the group to which each SRS resource set belongs through the set group corresponding to each SRS resource set.

[0178] Among them, the at least one set group corresponds one-to-one to at least one terminal device receiving antenna port group / antenna panel / sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group / antenna panel / sub-receiver corresponding to the set group according to all the SRS resource sets in a certain set, ensuring the accuracy of reception and processing.

[0179] It should be noted that the at least one SRS resource set corresponding to at least one set group can be understood as that the at least one SRS resource set corresponds to one or more set groups. The following will be described separately.

[0180] b. The at least one SRS resource set corresponds to one set group

[0181] The at least one SRS resource set corresponding to one set group can be understood as that all the SRS resource sets of the at least one SRS resource set are within the same group.

[0182] At this time, it is equivalent to not needing to perform SRS grouping for the at least one SRS resource set. Whether to perform SRS grouping can be determined according to the sum of the number of receiving antennas of the terminal device / the sum of the SRS port numbers / the sum of the SRS resource set numbers being less than or equal to a preset value, or determined based on network configuration information.

[0183] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the number of receiving antennas of the terminal device. Thus, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in the at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources within the target SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to a set group.

[0184] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR.

[0185] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., the periodic or semi-persistent SRS resource sets configured by the network device correspond to a set group.

[0186] For 1T2R, the network device may configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port; each SRS resource set corresponds to the same set group, and all SRS resources within each SRS resource set have the same set group.

[0187] For 1T4R, the network device may configure 0 or 1 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 1 SRS port; each SRS resource set corresponds to the same set group, and all SRS resources within each SRS resource set have the same set group.

[0188] For 2T4R, the network device may configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports; each SRS resource set corresponds to the same set group, and all SRS resources within each SRS resource set have the same set group.

[0189] For 1T = 1R, 2T = 2R, or 4T = 4R, at most two SRS resource sets can be configured. Each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2, or 4; each SRS resource set corresponds to the same set group, and all SRS resources within each SRS resource set have the same set group.

[0190] Optionally, in combination with the content in the above "SRS antenna switching", for periodic or semi-persistent SRS resource sets, the sum of all SRS resource sets or the sum of all active SRS resource sets may be equal to the number of sub-receivers / antenna panels / receiving antenna port groups of the terminal device. Thus, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in the at least one SRS resource set, and the sum of the target SRS resource sets is less than or equal to the number of sub-receivers / antenna panels / receiving antenna port groups of the terminal device, then the at least one SRS resource set corresponds to one set group.

[0191] Optionally, in combination with the content in the above "SRS antenna switching", for periodic or semi-persistent SRS resource sets, the sum of the SRS ports of all SRS resources within each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS ports of all SRS resources within each SRS resource set in the at least one SRS resource set is equal to the value of y, then the at least one SRS resource set corresponds to one set group.

[0192] Optionally, in combination with the content in the above "SRS antenna switching", for non-periodic SRS resource sets, the sum of the SRS ports of all SRS resources of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. Thus, if each SRS resource set in the at least one SRS resource set is non-periodic and the sum of the SRS ports of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, then the at least one SRS resource set corresponds to one set group.

[0193] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR.

[0194] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., the set of aperiodic SRS resources configured by the network device corresponds to a set group.

[0195] For 1T2R, the network device can configure 0, 1, or 2 sets of aperiodic SRS resources, and a total of 2 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

[0196] For 1T4R, the network device can configure 0, 1, 2, or 4 sets of aperiodic SRS resources, and a total of 4 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

[0197] For 2T4R, the network device can configure 0, 1, or 2 sets of aperiodic SRS resources, and a total of 2 SRS resources can be configured. Each SRS resource includes 2 SRS ports; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

[0198] For 1T=1R, 2T=2R, or 4T=4R, at most 2 or 3 SRS resource sets can be configured. Each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2, or 4; all SRS resource sets correspond to the same set group, and all SRS resources have the same set group.

[0199] Optionally, combining the content in the above "SRS antenna switching", for the set of aperiodic SRS resources, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is equal to the value of y, then the at least one SRS resource set corresponds to a set group.

[0200] c. At least one SRS resource set corresponds to multiple set groups

[0201] That the at least one SRS resource set corresponds to multiple set groups can be understood as that all SRS resource sets in the at least one SRS resource set are respectively in multiple groups.

[0202] At this time, it is equivalent to that SRS grouping needs to be performed for the at least one SRS resource set. Whether SRS grouping needs to be performed can be determined based on the sum of the number of receiving antennas of the terminal device / the sum of the number of SRS ports / the sum of the number of SRS resource sets being greater than a preset value, or can be determined based on network configuration information.

[0203] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the number of SRS ports of all SRS resources within each SRS resource set may be greater than the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the number of SRS ports of all SRS resources within each SRS resource set is greater than the preset value, then the at least one SRS resource set corresponds to multiple set groups.

[0204] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, can be the number of receiving antennas of the sub-receivers of the terminal device, or can be the value of y in the antenna switching mode xTyR.

[0205] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T = 8R, etc., the periodic or semi-persistent SRS resource sets configured by the network device correspond to multiple set groups.

[0206] For 1T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port; when configuring 2 semi-persistent SRS resource sets, the 2 SRS resource sets correspond to different SRS set groups respectively.

[0207] For 1T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port; when configuring 2 semi-persistent SRS resource sets, the 2 SRS resource sets correspond to different SRS set groups respectively.

[0208] For 2T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 3 SRS resources, and each SRS resource includes 2 SRS ports; when configuring 2 semi-persistent SRS resource sets, the 2 SRS resource sets correspond to different SRS set groups respectively.

[0209] For 2T8R, the network device may configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports. When 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets respectively correspond to different SRS set groups.

[0210] For 4T8R, the network device may configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports. When 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets respectively correspond to different SRS set groups.

[0211] For 8T = 8R, the network device may configure 0, 1, 2, or 3 semi-persistent SRS resource sets. Each SRS resource set includes 1 SRS resource, and each SRS resource includes 8 SRS ports. When 2 semi-persistent SRS resource sets are configured, the 2 SRS resource sets respectively correspond to different SRS set group IDs.

[0212] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0213] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0214] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be greater than the number of receiving antennas of the terminal device. Thus, if each of the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, the at least one SRS resource set corresponds to multiple set groups.

[0215] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR.

[0216] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T = 8R, etc., the aperiodic SRS resource sets configured by the network device correspond to multiple set groups.

[0217] For 1T6R, the network device can configure 0, 1, 2, or 3 aperiodic SRS resource sets, and a total of 6 SRS resources can be configured. Each SRS resource includes 1 SRS port; when multiple aperiodic SRS resource sets are configured, the multiple SRS resource sets respectively correspond to different SRS set groups.

[0218] For 1T8R, the network device can configure 0, 2, 3, or 4 aperiodic SRS resource sets, and a total of 8 SRS resources can be configured. Each SRS resource includes 1 SRS port; when multiple aperiodic SRS resource sets are configured, the multiple SRS resource sets respectively correspond to different SRS set groups.

[0219] For 2T6R, the network device can configure 0, 1, 2, or 3 aperiodic SRS resource sets, and a total of 3 SRS resources can be configured. Each SRS resource includes 2 SRS ports; when multiple aperiodic SRS resource sets are configured, the multiple SRS resource sets respectively correspond to different SRS set groups.

[0220] For 2T8R, the network device can configure 0, 1, 2, 3, or 4 aperiodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 2 SRS ports; when multiple aperiodic SRS resource sets are configured, the multiple SRS resource sets respectively correspond to different SRS set groups.

[0221] For 4T8R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources can be configured, and each SRS resource includes 4 SRS ports. When configuring multiple aperiodic SRS resource sets, the multiple SRS resource sets respectively correspond to different SRS set groups.

[0222] For 8T = 8R, 0, 1, 2, or 3 aperiodic SRS resource sets can be configured. A total of 1 SRS resource can be configured, and each SRS resource includes 8 SRS ports. When configuring multiple aperiodic SRS resource sets, the multiple SRS resource sets respectively correspond to different SRS set group IDs.

[0223] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0224] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0225] d. Grouping of SRS resource sets

[0226] For each of the at least one SRS resource sets configured by the network, which group each SRS resource set in the at least one SRS resource set belongs to can be determined by network configuration, protocol definition, pre-configuration, or according to certain rules. Hereinafter, this embodiment will be described in various ways.

[0227] Method 1:

[0228] In "Method 1", this embodiment can group all SRS resource sets in the at least one SRS resource set according to the number of set groups to be divided as needed.

[0229] For example, when the at least one SRS resource set needs to be divided into two set groups, the first half of the SRS resource sets in the at least one SRS resource set can be divided into one set group, and the second half of the SRS resource sets can be divided into another set group, which is easy to implement.

[0230] Taking 2T8R as an example, for 2T8R, the network device can configure two semi-persistent SRS resource sets. Each SRS resource set includes four SRS resources, and each SRS resource includes two SRS ports. When 2T8R is split into two 1T4R, the two SRS resource sets respectively correspond to different SRS set groups and respectively correspond to one 1T4R.

[0231] For another example, when the at least one SRS resource set needs to be divided into three set groups, the first one-third of the SRS resource sets in the at least one SRS resource set can be divided into the first set group, the middle one-third of the SRS resource sets can be divided into the second set group, and the last one-third of the SRS resource sets can be divided into the third set group, which is easy to implement.

[0232] Method 2:

[0233] It should be noted that the SRS resource set can have a unique ID or index. This ID can be called the "SRS resource set ID", and this index can be called the "SRS resource set index", and the SRS resource set ID / SRS resource set index can be used to identify the SRS resource set. Among them, the SRS resource set ID / SRS resource set index can be configured by the network. Hereinafter, this embodiment will be described by taking the "SRS resource set ID" as an example, and the "SRS resource set ID" can be replaced with the "SRS resource set index" to implement the same technical solution, which will not be elaborated herein.

[0234] In "Method 2", this embodiment can sort all the SRS resource sets in the at least one SRS resource set in the order of the SRS resource set ID (SRS resource set ID), and group the sorted SRS resource sets according to the number of set groups to be divided.

[0235] Among them, sorting in the order of the SRS resource set ID can be sorting in ascending order of the SRS resource set ID or sorting in descending order of the SRS resource set ID.

[0236] In this way, through sorting, the SRS resource sets with adjacent SRS resource set IDs can be grouped in the same group as much as possible, which is easy to implement.

[0237] For example, when the sorted SRS resource set needs to be divided into two set groups, the first half of the SRS resource set in the sorted SRS resource set can be divided into one set group, and the second half of the SRS resource set can be divided into another set group. In this way, the SRS resource sets with larger SRS resource set IDs form one group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver, while the SRS resource sets with smaller SRS resource set IDs form another group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0238] For another example, when the sorted SRS resource set needs to be divided into three set groups, the first one-third of the SRS resource set in the sorted SRS resource set can be divided into the first set group, the middle one-third of the SRS resource set can be divided into the second set group, and the last one-third of the SRS resource set can be divided into the third set group. In this way, the SRS resource sets with adjacent SRS resource set IDs are preferably divided into the same group, which is easy to implement.

[0239] Method 3:

[0240] In "Method 3", in this embodiment, all the SRS resource sets in the at least one SRS resource set can be grouped according to the parity of the SRS resource set ID.

[0241] In this way, the SRS resource sets with odd SRS resource set IDs form one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, while the SRS resource sets with even SRS resource set IDs form another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0242] Taking 4T8R as an example, for 4T8R, the network device can configure two aperiodic SRS resource sets; when 4T8R is split into two 2T4Rs, the two SRS resource sets correspond to different SRS set groups according to parity and respectively correspond to one 2T4R.

[0243] Method 4:

[0244] In "Method 4", in this embodiment, the SRS resource set ID of all the SRS resource sets in the at least one SRS resource set can be modulo-divided by the number of set groups to be divided, and the SRS resource sets with the same remainder are divided into the same group.

[0245] For example, taking the number of set groups to be divided as 2, (SRS resource set ID) mod 2 == 0 belongs to one group, and (SRS resource set ID) mod 2 == 1 belongs to one group. Similarly, grouping is performed according to the parity of the SRS resource set ID.

[0246] For another example, taking the number of set groups to be divided as 3, (SRS resource set ID) mod 3 == 0 belongs to one group, (SRS resource set ID) mod 3 == 1 belongs to one group, and (SRS resource set ID) mod 3 == 2 belongs to one group.

[0247] For another example, taking the number of set groups to be divided as 4, (SRS resource set ID) mod 4 == 0 belongs to one group, (SRS resource set ID) mod 4 == 1 belongs to one group, (SRS resource set ID) mod 4 == 2 belongs to one group, and (SRS resource set ID) mod 4 == 3 belongs to one group.

[0248] Next, in this embodiment, it is described by taking the at least one SRS resource set including N (N is a positive integer) SRS resource sets, each of the N SRS resource sets having the same time-domain behavior (i.e., all periodic, semi-persistent, or aperiodic), and the N SRS resource sets being divided into two groups as an example.

[0249] The two groups are respectively the first set group and the second set group, that is, the at least one set group corresponding to the at least one SRS resource set includes the first set group and the second set group. Of course, this embodiment is not limited to two groups, and may also be more than two groups, which will not be elaborated here.

[0250] In this way, the N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

[0251] Optionally, the first SRS resource set includes the first or the first several SRS resource sets among the N SRS resource sets; the second SRS resource set includes the remaining SRS resource sets among the N SRS resource sets except the first SRS resource set. In this way, the first half of the N SRS resource sets are divided into one set group, and the second half of the SRS resource sets are divided into another set group, which is easy to implement.

[0252] Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number; the SRS resource set ID of each SRS resource set in the second SRS resource set is an even number. In this way, the N SRS resource sets are grouped according to the parity of the SRS resource set ID, so that the SRS resource sets with odd SRS resource set IDs are in one group, and the SRS resource sets with even SRS resource set IDs are in another group, which is easy to implement.

[0253] Optionally, the N SRS resource sets are sorted in the order of the SRS resource set ID. In this way, the SRS resource sets with adjacent SRS resource set IDs among the M SRS resource sets can be grouped in the same group as much as possible, which is easy to implement.

[0254]

Solution 2

[0255] a. Description

[0256] In "Solution 2", in this embodiment, the SRS resources are grouped. Therefore, for all SRS resources of at least one SRS resource set configured by the network, each SRS resource corresponds to a group. For the sake of easy distinction, the "group" here is called a "resource group". The resource group can have a unique ID or index. This ID can be called a "resource group ID", and this index can be called a "resource group index", and the resource group ID / resource group index can be used to identify the group / resource group to which the SRS resource belongs. In the following, the "resource group" mentioned in this embodiment can be replaced / equated / regarded as the "resource group ID / resource group index", and no specific limitation is made thereto. Hereinafter, this embodiment will be described by taking the "resource group ID" as an example, and the same technical solution can be implemented by replacing the "resource group ID" with the "resource group index", which will not be elaborated herein.

[0257] Optionally, the resource group ID can be configured by the network. For example, the network device can display and configure the resource group ID.

[0258] It should be noted that SRS resources with the same resource group ID belong to the same group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver; SRS resources with different resource group IDs belong to different groups and correspond to different terminal device receiving antenna port groups / antenna panels / sub-receivers.

[0259] In this way, when the network device obtains the downlink CSI based on all SRS resources within the same resource group, the downlink CSI is the downlink CSI of the receiving antenna port group / antenna panel / sub-receiver corresponding to the resource group for the terminal device, so as to perform downlink channel evaluation on the receiving antenna port group / antenna panel / sub-receiver according to the downlink CSI.

[0260] Optionally, each SRS resource corresponds to a resource group, which can be network-configured, pre-configured, or specified by the protocol.

[0261] For example, taking network configuration as an example, the network device will send high-layer signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS resource to correspond to a resource group.

[0262] Optionally, all SRS resources of the at least one SRS resource set can correspond to at least one resource group, and the resource group corresponding to each SRS resource is one of the at least one resource group, so as to know the group to which each SRS resource belongs through the resource group corresponding to each SRS resource.

[0263] Among them, the at least one resource group corresponds one-to-one with at least one terminal device receiving antenna port group / antenna panel / sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group / antenna panel / sub-receiver corresponding to the resource group based on all SRS resources within a certain resource group, ensuring the accuracy of reception and processing.

[0264] It should be noted that all SRS resources of the at least one SRS resource set corresponding to at least one resource group can be understood as that all SRS resources of the at least one SRS resource set correspond to one or more resource groups. The following will be described separately.

[0265] b. All SRS resources of the at least one SRS resource set correspond to one resource group

[0266] All SRS resources of the at least one SRS resource set corresponding to one resource group can be understood as that all SRS resources of the at least one SRS resource set are within the same group.

[0267] At this time, it is equivalent to not needing to perform SRS grouping for all SRS resources of the at least one SRS resource set. And not needing to perform SRS grouping can be determined according to the sum of the number of receiving antennas of the terminal device / the number of SRS ports / the sum of the number of SRS resource sets being less than or equal to a preset value, or determined based on network configuration information.

[0268] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in the at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources within the target SRS resource set is less than or equal to a preset value, then all SRS resources in the at least one SRS resource set correspond to one resource group.

[0269] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR.

[0270] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T = 1R, 2T = 2R, 4T = 4R, etc., all SRS resources in the periodic or semi-persistent SRS resource sets configured by the network device correspond to one resource group.

[0271] For 1T2R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port; all SRS resources in all SRS resource sets correspond to the same resource group.

[0272] For 1T4R, the network device can configure 0 or 1 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 1 SRS port; all SRS resources in all SRS resource sets correspond to the same resource group.

[0273] For 2T4R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports; all SRS resources in all SRS resource sets correspond to the same resource group.

[0274] For 1T = 1R, 2T = 2R, or 4T = 4R, at most two SRS resource sets can be configured. Each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2, or 4; all SRS resources in all SRS resource sets correspond to the same resource group.

[0275] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is equal to the value of y, then all SRS resources in the at least one SRS resource set correspond to one resource group.

[0276] Optionally, in combination with the content in the above "SRS antenna switching", for an aperiodic SRS resource set, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is less than or equal to a preset value, then all SRS resources in the at least one SRS resource set correspond to one resource group.

[0277] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receivers of the terminal device, or the value of y in the antenna switching mode xTyR.

[0278] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS resources in the aperiodic SRS resource sets configured by the network device correspond to one resource group.

[0279] For 1T2R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS resources in all SRS resource sets correspond to the same resource group.

[0280] For 1T4R, the network device can configure 0, 1, 2, or 4 aperiodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS resources in all SRS resource sets correspond to the same resource group.

[0281] For 2T4R, the network device may configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources may be configured, and each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to the same resource group.

[0282] For 1T = 1R, 2T = 2R, or 4T = 4R, at most two SRS resource sets may be configured. Each SRS resource set includes one SRS resource, and the SRS ports of each SRS resource are 1, 2, or 4; all SRS resources of all SRS resource sets correspond to the same resource group.

[0283] Optionally, in combination with the content in the above "SRS antenna switching", for all SRS resources of all aperiodic SRS resource sets, the sum of the SRS port numbers may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets of the at least one SRS resource set is equal to the value of y, then all SRS resources of the at least one SRS resource set correspond to one resource group.

[0284] c. All SRS resources of at least one SRS resource set correspond to multiple resource groups

[0285] All SRS resources of the at least one SRS resource set corresponding to multiple resource groups can be understood as that all SRS resources of the at least one SRS resource set are respectively in multiple groups.

[0286] At this time, it is equivalent to performing SRS grouping for all SRS resources of the at least one SRS resource set. The need for SRS grouping can be determined according to the number of receiving antennas of the terminal device / the sum of the SRS port numbers / the sum of the SRS resource set numbers being greater than a preset value, or determined based on network configuration information.

[0287] Optionally, in combination with the content in the above "SRS antenna switching", for periodic or semi-persistent SRS resource sets, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources within each SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

[0288] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, the number of receiving antennas of the sub-receiver of the terminal device, or the value of y in the antenna switching mode xTyR.

[0289] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS resources of the periodically or semi-persistently configured SRS resource set by the network device correspond to multiple resource groups.

[0290] For 1T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

[0291] For 1T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port; all SRS resources of all SRS resource sets correspond to multiple resource groups.

[0292] For 2T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 3 SRS resources, and each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

[0293] For 2T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

[0294] For 4T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource groups.

[0295] For 8T=8R, the network device can configure 0, 1, 2, or 3 semi-persistent SRS resource sets. Each SRS resource set includes 1 SRS resource, and each SRS resource includes 8 SRS ports; all SRS resources of all SRS resource sets correspond to multiple resource group IDs.

[0296] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups.

[0297] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is greater than the value of y, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups.

[0298] Optionally, in combination with the content in the above "SRS antenna switching", for a non-periodic SRS resource set, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be equal to the number of receiving antennas of the terminal device. Thus, if each SRS resource set in the at least one SRS resource set is non-periodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups.

[0299] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T = 8R, etc., all SRS resources in the non-periodic SRS resource sets configured by the network device correspond to multiple resource groups.

[0300] For 1T6R, the network device may configure 0, 1, 2, or 3 non-periodic SRS resource sets, and a total of 6 SRS resources may be configured. Each SRS resource includes 1 SRS port; all SRS resources in all SRS resource sets correspond to multiple resource groups.

[0301] For 1T8R, the network device can configure 0, 2, 3, or 4 aperiodic SRS resource sets. A total of 8 SRS resources can be configured, and each SRS resource includes 1 SRS port. All SRS resources of all SRS resource sets correspond to multiple resource groups.

[0302] For 2T6R, the network device can configure 0, 1, 2, or 3 aperiodic SRS resource sets. A total of 3 SRS resources can be configured, and each SRS resource includes 2 SRS ports. All SRS resources of all SRS resource sets correspond to multiple resource groups.

[0303] For 2T8R, the network device can configure 0, 1, 2, 3, or 4 aperiodic SRS resource sets. A total of 4 SRS resources can be configured, and each SRS resource includes 2 SRS ports. All SRS resources of all SRS resource sets correspond to multiple resource groups.

[0304] For 4T8R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources can be configured, and each SRS resource includes 4 SRS ports. All SRS resources of all SRS resource sets correspond to multiple resource groups.

[0305] For 8T8R, 0, 1, 2, or 3 aperiodic SRS resource sets can be configured. A total of 1 SRS resource can be configured, and each SRS resource includes 8 SRS ports. All SRS resources of all SRS resource sets correspond to multiple resource group IDs.

[0306] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

[0307] Optionally, in combination with the content in the above-mentioned "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be less than the value of y in the SRS antenna switching mode xTyR. In this way, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is less than the value of y, then all SRS resources in the at least one SRS resource set correspond to multiple resource groups.

[0308] d. Grouping of SRS resources

[0309] For each SRS resource in all SRS resources of the at least one SRS resource set configured by the network, which group it belongs to can be determined by network configuration, protocol definition, pre-configuration, or according to certain rules. Hereinafter, this embodiment will be described in multiple ways.

[0310] Method 1:

[0311] In "Method 1", in this embodiment, all SRS resources in each SRS resource set in the at least one SRS resource set can be grouped according to the number of resource groups to be divided as needed.

[0312] For example, when all SRS resources in each SRS resource set need to be divided into 2 resource groups, the first half of the SRS resources in each SRS resource set can be divided into one resource group, and the second half of the SRS resources can be divided into another resource group, which is easy to implement.

[0313] Taking 2T8R as an example, for 2T8R, the network device can configure 2 semi-persistent SRS resource sets, each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; when 2T8R is split into two 1T4R, the first 2 SRS resources and the last 2 SRS resources in each SRS resource set correspond to different SRS resource groups respectively, and each corresponds to a 1T4R.

[0314] Another example is that when all SRS resources in each SRS resource set need to be divided into 3 resource groups, the first one-third of the SRS resources in each SRS resource set can be divided into the first resource group, the middle one-third of the SRS resources can be divided into the second resource group, and the last one-third of the SRS resources can be divided into the third resource group, which is easy to implement.

[0315] Method 2:

[0316] It should be noted that the SRS resource may have a unique ID or index. This ID may be referred to as the "SRS resource ID", and this index may be referred to as the "SRS resource index". The SRS resource ID / SRS resource index can be used to identify the SRS resource. Among them, the SRS resource ID / SRS resource index can be configured by the network. Hereinafter, this embodiment will be described by taking the "SRS resource ID" as an example. The "SRS resource ID" can be replaced with the "SRS resource index" to implement the same technical solution, which will not be elaborated herein.

[0317] In "Mode 2", in this embodiment, all SRS resources within each SRS resource set in the at least one SRS resource set can be sorted in the order of the SRS resource IDs within the same SRS resource set, and the sorted SRS resources can be grouped according to the number of resource groups to be divided.

[0318] Among them, sorting in the order of the SRS resource IDs within the same SRS resource set can be sorting in ascending or descending order of the SRS resource IDs within the same SRS resource set.

[0319] In this way, through sorting, SRS resources with adjacent SRS resource IDs can be grouped in the same group as much as possible, which is easy to implement.

[0320] For example, when the sorted SRS resources within a certain SRS resource set need to be divided into 2 resource groups, the first half of the sorted SRS resources can be divided into one resource group, and the second half of the sorted SRS resources can be divided into another resource group. In this way, SRS resources with larger SRS resource IDs form one group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver, while SRS resources with smaller SRS resource IDs form another group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0321] For another example, when the sorted SRS resources within a certain SRS resource set need to be divided into 3 resource groups, the first one-third of the sorted SRS resources can be divided into the 1st resource group, the middle one-third of the sorted SRS resources can be divided into the 2nd resource group, and the last one-third of the sorted SRS resources can be divided into the 3rd resource group. In this way, SRS resource sets with adjacent SRS resource IDs are grouped in the same group as much as possible, which is easy to implement.

[0322] Mode 3:

[0323] In "Mode 3", in this embodiment, all SRS resources within each SRS resource set in the at least one SRS resource set can be grouped according to the parity of the SRS resource ID.

[0324] In this way, the SRS resources with odd SRS resource IDs form one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, while the SRS resources with even SRS resource IDs form another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, thus being easy to implement.

[0325] Taking 4T8R as an example, for 2T8R, the network device can configure 2 aperiodic SRS resource sets; when 4T8R is split into two 2T4R, all SRS resources within each SRS resource set are respectively grouped according to parity and correspond to different SRS resource groups, and each corresponds to a 2T4R.

[0326] Mode 4:

[0327] In "Mode 4", in this embodiment, the SRS resource ID of all SRS resources within each SRS resource set in the at least one SRS resource set can be modulo-divided by the number of resource groups to be divided, and the SRS resources with the same remainder are divided into the same group.

[0328] For example, taking the number of resource groups to be divided as 2, (SRS resource ID) mod 2 == 0 belongs to one group, and (SRS resource ID) mod 2 == 1 belongs to one group. Similarly, it is grouped according to the parity of the SRS resource ID.

[0329] For another example, taking the number of resource groups to be divided as 3, (SRS resource ID) mod 3 == 0 belongs to one group, (SRS resource ID) mod 3 == 1 belongs to one group, and (SRS resource ID) mod 3 == 2 belongs to one group.

[0330] For another example, taking the number of resource groups to be divided as 4, (SRS resource ID) mod 4 == 0 belongs to one group, (SRS resource ID) mod 4 == 1 belongs to one group, (SRS resource ID) mod 4 == 2 belongs to one group, and (SRS resource ID) mod 4 == 3 belongs to one group.

[0331] Mode 5:

[0332] In "Mode 5", in this embodiment, all SRS resources of the at least one SRS resource set can be grouped according to the number of resource groups to be divided as needed.

[0333] Mode 6:

[0334] In "Mode 6", in this embodiment, all SRS resources of the at least one SRS resource set can be sorted first in the order of SRS resource set ID, and then in the order of SRS resource ID within the same SRS resource set, and the sorted SRS resources can be grouped according to the number of resource groups to be divided as needed.

[0335] Among them, in the order of SRS resource set ID, it can be in ascending or descending order of SRS resource set ID; in the order of SRS resource ID within the same SRS resource set, it can be in ascending or descending order of SRS resource ID within the same SRS resource set.

[0336] In this way, through sorting, SRS resources with adjacent SRS resource set IDs and adjacent SRS resource IDs can be grouped in the same group as much as possible, which is easy to implement.

[0337] Mode 7:

[0338] In "Mode 7", in this embodiment, all SRS resources of the at least one SRS resource set can be grouped according to the parity of the SRS resource ID.

[0339] In this way, SRS resources with odd SRS resource IDs are in one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, while SRS resources with even SRS resource IDs are in another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0340] Mode 8:

[0341] In "Mode 8", in this embodiment, the SRS resource ID of all SRS resources of the at least one SRS resource set can be modulo-divided by the number of resource groups to be divided, and SRS resources with the same remainder are divided into the same group.

[0342] For example, taking the number of resource groups to be divided as 2, (SRS resource ID) mod 2 == 0 belongs to one group, and (SRS resource ID) mod 2 == 1 belongs to one group. Similarly, it is grouped according to the parity of the SRS resource ID.

[0343] For another example, taking the number of resource groups to be divided as 3, (SRS resource ID) mod 3 == 0 belongs to one group, (SRS resource ID) mod 3 == 1 belongs to one group, and (SRS resource ID) mod 3 == 2 belongs to one group.

[0344] For another example, taking the number of resource groups to be divided as 4, (SRS resource ID) mod 4 == 0 belongs to one group, (SRS resource ID) mod 4 == 1 belongs to one group, (SRS resource ID) mod 4 == 2 belongs to one group, and (SRS resource ID) mod 4 == 3 belongs to one group.

[0345] Next, in this embodiment, each SRS resource set in the at least one SRS resource set includes M (M is a positive integer) SRS resources, or all SRS resources in the at least one SRS resource set include M SRS resources, each SRS resource set has the same time-domain behavior (i.e., all are periodic, semi-persistent, or aperiodic), and M SRS resources are divided into two groups as an example for description.

[0346] The two groups are the first resource group and the second resource group respectively, that is, the at least one resource group corresponding to all SRS resources in the at least one SRS resource set includes the first resource group and the second resource group. Of course, this embodiment is not limited to two groups, and may also be more than two groups, which will not be elaborated here.

[0347] In this way, M SRS resources include the first SRS resource and the second SRS resource. The first SRS resource corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

[0348] Optionally, the first SRS resource includes the first or the first ... SRS resources among the M SRS resources; the second SRS resource includes the remaining SRS resources among the M SRS resources except the first SRS resource. In this way, the first half of the M SRS resources are divided into one resource group, and the second half of the SRS resources are divided into another resource group, which is easy to implement.

[0349] Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number; the SRS resource ID of each SRS resource in the second SRS resource is an even number. In this way, the M SRS resources are grouped according to the parity of the SRS resource ID, so that the SRS resources with odd SRS resource IDs are in one group, and the SRS resources with even SRS resource IDs are in another group, which is easy to implement.

[0350] Optionally, if each of the at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of the SRS resource IDs within the same SRS resource set. In this way, the SRS resources with adjacent SRS resource IDs among the M SRS resources can be grouped together as much as possible, which is easy to implement.

[0351] Optionally, if all of the at least one SRS resource set include M SRS resources, the M SRS resources are first sorted in the order of the SRS resource set IDs, and then in the order of the SRS resource IDs within the same SRS resource set. In this way, the SRS resources with adjacent SRS resource set IDs and adjacent SRS resource IDs among the M SRS resources can be grouped together as much as possible, which is easy to implement.

[0352]

Solution 3

[0353] a. Description

[0354] In "Solution 3", in this embodiment, the SRS ports are grouped. Therefore, for all SRS ports of the at least one SRS resource set configured by the network, each SRS port corresponds to a group. For the sake of easy distinction, the "group" here is called a "port group". The port group has a unique ID or index. This ID can be called the "port group ID", and this index can be called the "port group index". And the port group ID / port group index can be used to identify the group / port group to which the SRS port belongs. In the following, the "port group" mentioned in this embodiment can be replaced / equated / regarded as the "port group ID / port group index", and no specific limitation is made in this regard. Hereinafter, this embodiment will be described by taking the "port group ID" as an example, and the same technical solution can be implemented by replacing the "port group ID" with the "port group index", which will not be elaborated herein.

[0355] Optionally, the port group ID can be configured by the network. For example, the network device can configure the port group ID explicitly.

[0356] It should be noted that SRS ports with the same port group ID belong to the same group and correspond to the same terminal device receiving antenna port group / antenna panel / sub-receiver; SRS ports with different port group IDs belong to different groups and correspond to different terminal device receiving antenna port groups / antenna panels / sub-receivers.

[0357] In this way, when the network device obtains the downlink CSI based on all SRS ports within the same port group, the downlink CSI is the downlink CSI of the receiving antenna port group / antenna panel / sub-receiver corresponding to the port group of the terminal device, so as to perform downlink channel evaluation on the receiving antenna port group / antenna panel / sub-receiver according to the downlink CSI.

[0358] Optionally, each SRS port corresponds to a port group, which can be network-configured, pre-configured, specified by a protocol, or determined according to rules.

[0359] For example, taking network configuration as an example, the network device will send high-layer signaling (such as MAC signaling or RRC signaling) or DCI or system information to the terminal device to configure each SRS port to correspond to a port group.

[0360] Optionally, all SRS ports of the at least one SRS resource set can correspond to at least one port group, and the port group corresponding to each SRS port is one of the at least one port group, so as to know the group to which each SRS port belongs through the port group corresponding to each SRS port.

[0361] Among them, the at least one port group corresponds one-to-one to at least one terminal device receiving antenna port group / antenna panel / sub-receiver. In this way, through the corresponding relationship, the network device can obtain the downlink CSI of the terminal device antenna port group / antenna panel / sub-receiver corresponding to a certain port group based on all SRS ports within the port group, ensuring the accuracy of reception and processing.

[0362] It should be noted that all SRS ports of the at least one SRS resource set corresponding to at least one port group can be understood as that all SRS ports of the at least one SRS resource set correspond to one or more port groups. The following will be described separately.

[0363] b. All SRS ports of the at least one SRS resource set correspond to one port group

[0364] All SRS ports of the at least one SRS resource set corresponding to one port group can be understood as that all SRS ports of the at least one SRS resource set are within the same group.

[0365] At this time, it is equivalent to not needing to perform SRS grouping for all SRS ports of the at least one SRS resource set. Whether to perform SRS grouping can be determined according to the sum of the number of receiving antennas of the terminal device / the number of SRS ports / the sum of the number of SRS resource sets being less than or equal to a preset value, or determined based on network configuration information.

[0366] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in the at least one SRS resource set, and the sum of the SRS port numbers of all SRS ports within the target SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group.

[0367] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, can be the number of receiving antennas of the sub-receivers of the terminal device, or can be the value of y in the antenna switching mode xTyR.

[0368] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS ports of the periodic or semi-persistent SRS resource sets configured by the network device correspond to one port group.

[0369] For 1T2R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

[0370] For 1T4R, the network device can configure 0 or 1 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

[0371] For 2T4R, the network device can configure 0, 1, or 2 periodic or semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to the same port group.

[0372] For 1T=1R, 2T=2R, or 4T=4R, at most two SRS resource sets can be configured. Each SRS resource set includes one SRS resource, and the SRS port of each SRS resource is 1, 2, or 4; all SRS ports of all SRS resource sets correspond to the same port group.

[0373] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTy, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is equal to the value of y, then all SRS ports of the at least one SRS resource set correspond to one port group.

[0374] Optionally, in combination with the content in the above "SRS antenna switching", for an aperiodic SRS resource set, the sum of the SRS port numbers of all SRS ports of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group.

[0375] It should be noted that the "number of receiving antennas of the terminal device" here can be the total number of receiving antennas of the terminal device, can be the number of receiving antennas of the sub-receivers of the terminal device, or can be the value of y in the antenna switching mode xTyR.

[0376] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T2R, 2T4R, 1T4R, 1T=1R, 2T=2R, 4T=4R, etc., all SRS ports of the aperiodic SRS resource sets configured by the network device correspond to one port group.

[0377] For 1T2R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets, and a total of 2 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

[0378] For 1T4R, the network device can configure 0, 1, 2, or 4 aperiodic SRS resource sets, and a total of 4 SRS resources can be configured. Each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to the same port group.

[0379] For 2T4R, the network device may configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources may be configured, and each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to the same port group.

[0380] For 1T=1R, 2T=2R, or 4T=4R, at most two SRS resource sets may be configured. Each SRS resource set includes one SRS resource, and the SRS ports of each SRS resource are 1, 2, or 4; all SRS ports of all SRS resource sets correspond to the same port group.

[0381] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be equal to the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers in all SRS resource sets of the at least one SRS resource set is equal to the value of y, then all SRS ports of the at least one SRS resource set correspond to one port group.

[0382] c. All SRS ports of at least one SRS resource set correspond to multiple port groups

[0383] That all SRS ports of the at least one SRS resource set correspond to multiple port groups can be understood as that all SRS ports of the at least one SRS resource set are respectively in multiple groups.

[0384] At this time, it is equivalent to performing SRS grouping for all SRS ports of the at least one SRS resource set. The need for SRS grouping can be determined according to the number of receiving antennas of the terminal device / the sum of the SRS port numbers / the sum of the SRS resource set numbers being greater than a preset value, or determined based on network configuration information.

[0385] Optionally, in combination with the content in the above "SRS antenna switching", for periodic or semi-persistent SRS resource sets, the sum of the SRS port numbers of all SRS ports within each SRS resource set may be equal to the number of receiving antennas of the terminal device. In this way, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources within each SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

[0386] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS ports of the periodically or semi-persistently configured SRS resource sets by the network device correspond to multiple port groups.

[0387] For 1T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 6 SRS resources, and each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0388] For 1T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 8 SRS resources, and each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0389] For 2T6R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 3 SRS resources, and each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0390] For 2T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 4 SRS resources, and each SRS resource includes 2 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0391] For 4T8R, the network device can configure 0, 1, or 2 semi-persistent SRS resource sets. Each SRS resource set includes 2 SRS resources, and each SRS resource includes 4 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0392] For 8T=8R, the network device can configure 0, 1, 2, or 3 semi-persistent SRS resource sets. Each SRS resource set includes 1 SRS resource, and each SRS resource includes 8 SRS ports; all SRS ports of all SRS resource sets correspond to multiple port group IDs.

[0393] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be less than the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

[0394] Optionally, in combination with the content in the above "SRS antenna switching", for a periodic or semi-persistent SRS resource set, the sum of the SRS port numbers of all SRS resources within each SRS resource set may be greater than the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set in the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

[0395] Optionally, in combination with the content in the above "SRS antenna switching", for a non-periodic SRS resource set, the sum of the SRS port numbers of all SRS ports of all SRS resource sets may be equal to the number of receiving antennas of the terminal device. Thus, if each SRS resource set in the at least one SRS resource set is non-periodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

[0396] For example, taking the preset value as 4, in the SRS antenna switching mode xTyR, for 1T6R, 1T8R, 2T6R, 2T8R, 4T8R, 8T=8R, etc., all SRS ports of the non-periodic SRS resource sets configured by the network device correspond to multiple port groups.

[0397] For 1T6R, the network device may configure 0, 1, 2, or 3 non-periodic SRS resource sets, and a total of 6 SRS resources may be configured. Each SRS resource includes 1 SRS port; all SRS ports of all SRS resource sets correspond to multiple port groups.

[0398] For 1T8R, the network device can configure 0, 2, 3, or 4 aperiodic SRS resource sets. A total of 8 SRS resources can be configured, and each SRS resource includes 1 SRS port. All SRS ports of all SRS resource sets correspond to multiple port groups.

[0399] For 2T6R, the network device can configure 0, 1, 2, or 3 aperiodic SRS resource sets. A total of 3 SRS resources can be configured, and each SRS resource includes 2 SRS ports. All SRS ports of all SRS resource sets correspond to multiple port groups.

[0400] For 2T8R, the network device can configure 0, 1, 2, 3, or 4 aperiodic SRS resource sets. A total of 4 SRS resources can be configured, and each SRS resource includes 2 SRS ports. All SRS ports of all SRS resource sets correspond to multiple port groups.

[0401] For 4T8R, the network device can configure 0, 1, or 2 aperiodic SRS resource sets. A total of 2 SRS resources can be configured, and each SRS resource includes 4 SRS ports. All SRS ports of all SRS resource sets correspond to multiple port groups.

[0402] For 8T = 8R, 0, 1, 2, or 3 aperiodic SRS resource sets can be configured. A total of 1 SRS resource can be configured, and each SRS resource includes 8 SRS ports. All SRS ports of all SRS resource sets correspond to multiple port group IDs.

[0403] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources of all SRS resource sets may be greater than the value of y in the SRS antenna switching mode xTyR. In this way, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

[0404] Optionally, in combination with the content in the above "SRS antenna switching", for aperiodic SRS resource sets, the sum of the SRS port numbers of all SRS resources in all SRS resource sets may be less than the value of y in the SRS antenna switching mode xTyR. Thus, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is less than the value of y, then all SRS ports in the at least one SRS resource set correspond to multiple port groups.

[0405] d. Grouping of SRS ports

[0406] For at least one SRS resource set configured by the network, which group each SRS port in all SRS ports of the at least one SRS resource set belongs to can be determined by network configuration, protocol definition, pre-configuration, or according to certain rules. Hereinafter, this embodiment will be described in various ways.

[0407] Method A:

[0408] In "Method A", in this embodiment, the SRS ports of all SRS resources within each SRS resource set in the at least one SRS resource set can be grouped according to the number of port groups to be divided as required.

[0409] For example, when the SRS ports of all SRS resources within each SRS resource set need to be divided into 2 port groups, the first half of the SRS ports among all SRS ports can be divided into one port group, and the second half of the SRS ports can be divided into another port group, which is easy to implement.

[0410] Method B:

[0411] It should be noted that an SRS port may have a unique ID or index. This ID may be referred to as the "SRS port ID", and this index may be referred to as the "SRS port index", and the SRS port ID / SRS port index can be used to identify the SRS port. Among them, the SRS port ID / SRS port index can be configured by the network. Hereinafter, this embodiment will be described by taking the "SRS port ID" as an example, and the "SRS port ID" can be replaced with the "SRS port index" to implement the same technical solution, which will not be elaborated herein.

[0412] In "Mode B", in this embodiment, the SRS ports of all SRS resources within each SRS resource set in the at least one SRS resource set can be sorted first in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource, and the sorted SRS ports are grouped according to the number of port groups to be divided as required.

[0413] Among them, the order of the SRS resource IDs within the same SRS resource set can be in ascending or descending order of the SRS resource IDs within the same SRS resource set; the order of the SRS port IDs within the same SRS resource can be in ascending or descending order of the SRS port IDs within the same SRS resource.

[0414] In this way, through sorting, the SRS ports with adjacent SRS resource IDs and adjacent SRS port IDs can be grouped in the same group as much as possible, which is easy to implement.

[0415] Mode C:

[0416] In "Mode C", in this embodiment, the SRS ports of all SRS resources within each SRS resource set in the at least one SRS resource set can be grouped according to the parity of the SRS port IDs.

[0417] In this way, the SRS ports with odd SRS port IDs are in one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, and the SRS ports with even SRS port IDs are in another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0418] Mode D:

[0419] In "Mode D", in this embodiment, the SRS port IDs of the SRS ports of all SRS resources within each SRS resource set in the at least one SRS resource set are taken modulo with the number of port groups to be divided, and the SRS ports with the same remainder are divided into the same group.

[0420] For example, taking the number of port groups to be divided as 2, (SRS port ID) mod 2 == 0 belongs to one group, and (SRS SRS port ID) mod 2 == 1 belongs to one group. Similarly, grouping is performed according to the parity of the SRS resource IDs.

[0421] For another example, taking the number of port groups to be divided as 3, (SRS port ID) mod 3 == 0 belongs to one group, (SRS port ID) mod 3 == 1 belongs to one group, and (SRS port ID) mod 3 == 2 belongs to one group.

[0422] For another example, taking the number of port groups to be divided as 4, (SRS port ID) mod 4 == 0 belongs to one group, (SRS port ID) mod 4 == 1 belongs to one group, (SRS port ID) mod 4 == 2 belongs to one group, and (SRS port ID) mod 4 == 3 belongs to one group.

[0423] Mode E:

[0424] In "Mode E", in this embodiment, all SRS ports of each SRS resource in the at least one SRS resource set can be grouped according to the number of port groups to be divided.

[0425] Mode F:

[0426] In "Mode F", in this embodiment, all SRS ports of each SRS resource in the at least one SRS resource set can be sorted according to the order of SRS port IDs within the same SRS resource, and the sorted SRS ports can be grouped according to the number of port groups to be divided.

[0427] Among them, according to the order of SRS port IDs within the same SRS resource, it can be the order of SRS port IDs within the same SRS resource from small to large or from large to small.

[0428] In this way, through sorting, SRS ports with adjacent SRS port IDs can be grouped in the same group as much as possible, which is easy to implement.

[0429] Mode G:

[0430] In "Mode G", in this embodiment, all SRS ports of each SRS resource in the at least one SRS resource set can be grouped according to the parity of the SRS port ID.

[0431] In this way, SRS ports with odd SRS port IDs are in one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, while SRS resources with even SRS port IDs are in another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0432] Mode H:

[0433] In "Mode H", in this embodiment, the SRS port IDs of all SRS ports of each SRS resource in the at least one SRS resource set may be divided by the number of port groups to be divided, and the SRS ports with the same remainder are divided into the same group.

[0434] Mode I:

[0435] In "Mode I", in this embodiment, the SRS ports of all SRS resources in the at least one SRS resource set may be grouped according to the number of port groups to be divided.

[0436] Mode J:

[0437] In "Mode J", in this embodiment, the SRS ports of all SRS resources in the at least one SRS resource set may be sorted first according to the order of the SRS resource set IDs, then according to the order of the SRS resource IDs within the same SRS resource set, and finally according to the order of the SRS port IDs within the same SRS resource, and the sorted SRS ports are grouped according to the number of port groups to be divided.

[0438] Among them, according to the order of the SRS resource set IDs, it may be in ascending or descending order of the SRS resource set IDs; according to the order of the SRS resource IDs within the same SRS resource set, it may be in ascending or descending order of the SRS resource IDs within the same SRS resource set; according to the order of the SRS port IDs within the same SRS resource, it may be in ascending or descending order of the SRS port IDs within the same SRS resource.

[0439] In this way, through sorting, the SRS ports with adjacent SRS resource set IDs, adjacent SRS resource IDs, and adjacent SRS port IDs can be divided into the same group as much as possible, which is easy to implement.

[0440] Mode K:

[0441] In "Mode K", in this embodiment, the SRS ports of all SRS resources in the at least one SRS resource set may be grouped according to the parity of the SRS port IDs.

[0442] In this way, the SRS ports with odd SRS port IDs are in one group and correspond to a terminal device receiving antenna port group / antenna panel / sub-receiver, while the SRS resources with even SRS port IDs are in another group and correspond to another terminal device receiving antenna port group / antenna panel / sub-receiver, which is easy to implement.

[0443] Mode L:

[0444] In "mode L", in this embodiment, the SRS port IDs of the SRS ports of all the SRS resources in the at least one SRS resource set can be divided by the number of port groups to be divided, and the SRS ports with the same remainder are divided into the same group.

[0445] Hereinafter, this embodiment will be described by taking an example in which all the SRS resources in each SRS resource set in the at least one SRS resource set include X (X is a positive integer) SRS ports, or each SRS resource in the at least one SRS resource set includes X SRS ports, or all the SRS resources in the at least one SRS resource set include X SRS ports, each SRS resource set has the same time domain behavior (i.e., all are periodic, semi-persistent or aperiodic), and the X SRS ports are divided into two groups.

[0446] The two groups are respectively a first port group and a second port group, that is, the at least one port group corresponding to all the SRS ports in the at least one SRS resource set includes the first port group and the second port group. Of course, this embodiment is not limited to two groups, and may also be more than two groups, which will not be elaborated herein.

[0447] In this way, the X SRS ports include a first SRS port and a second SRS port, the first SRS port corresponds to the first port group, and the second SRS port corresponds to the second port group.

[0448] Optionally, the first SRS port includes the first or the first ... SRS ports among the X SRS ports; the second SRS port includes the remaining SRS ports among the X SRS ports except the first SRS port. In this way, the first half of the X SRS ports are divided into one port group, and the second half of the X SRS ports are divided into another port group, which is easy to implement.

[0449] Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number; the SRS port ID of each SRS port in the second SRS port is an even number. In this way, the X SRS ports are grouped according to the parity of the SRS port ID, so that the SRS ports with an odd SRS port ID are in one group, and the SRS ports with an even SRS port ID are in another group, which is easy to implement.

[0450] Optionally, if all SRS resources in each of the at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource. In this way, the SRS ports with adjacent SRS resource IDs and adjacent SRS port IDs among the X SRS ports can be grouped together as much as possible, which is easy to implement.

[0451] Optionally, if each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs within the same SRS resource. In this way, the SRS ports with adjacent SRS port IDs among the X SRS ports can be grouped together as much as possible, which is easy to implement.

[0452] Optionally, if all SRS resources in at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource set IDs, then in the order of the SRS resource IDs within the same SRS resource set, and finally in the order of the SRS port IDs within the same SRS resource. In this way, the SRS ports with adjacent SRS port set IDs, adjacent SRS port IDs, and adjacent SRS port IDs among the M SRS ports can be grouped together as much as possible, which is easy to implement.

[0453]

Example description of a communication method

[0454] Combined with the above content, taking the interaction between a network device and a terminal device as an example, an example introduction of a communication method according to an embodiment of the present application is given. It should be noted that the network device may be a chip, a chip module, a communication module, etc., and the terminal device may be a chip, a chip module, a communication module, etc. That is to say, this method is applied to a network device or a terminal device, and no specific limitation is made thereto.

[0455] As Figure 3 shown, it is a schematic flow chart of a communication method according to an embodiment of the present application, which specifically includes the following steps:

[0456] S310. The network device sends information for configuring at least one SRS resource set, and the at least one SRS resource set is used for antenna switching; each of the at least one SRS resource sets corresponds to a set group; or, each of all SRS resources in the at least one SRS resource set corresponds to a resource group; or, each of all SRS ports in the at least one SRS resource set corresponds to a port group.

[0457] Among them, each SRS resource set in at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port

[0458] Correspondingly, the terminal device obtains at least one SRS resource set.

[0459] It should be noted that the terminal device will receive information for configuring at least one SRS resource set and obtain at least one SRS resource set according to this information.

[0460] It can be seen that in this embodiment, each SRS resource set in at least one SRS resource set corresponds to a set group, or each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group, or each SRS port in all SRS ports of at least one SRS resource set corresponds to a port group, so as to group the SRS, so as to adapt the SRS antenna switching under multiple sub-receivers through SRS grouping, and ensure the uplink transmission performance and reliability.

[0461] Combined with the above content, some possible implementation methods will be described below, and for those not described, please refer to the above content for details, and will not be elaborated here.

[0462] Optionally, at least one SRS resource set corresponds to at least one set group;

[0463] The set group corresponding to each SRS resource set in at least one SRS resource set is one of at least one set group.

[0464] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group; or,

[0465] If each SRS resource set in at least one SRS resource set is non-periodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group.

[0466] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

[0467] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0468] Optionally, if each SRS resource set in the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

[0469] If the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0470] Optionally, at least one set group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

[0471] Optionally, the at least one set group includes a first set group and a second set group;

[0472] The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or aperiodic, and N is a positive integer;

[0473] The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

[0474] Optionally, the first SRS resource set includes the first or the first several SRS resource sets among the N SRS resource sets;

[0475] The second SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set.

[0476] Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is odd;

[0477] The SRS resource set ID of each SRS resource set in the second SRS resource set is even.

[0478] Optionally, the N SRS resource sets are sorted in the order of the SRS resource set IDs.

[0479] Optionally, all SRS resources of at least one SRS resource set correspond to at least one resource group;

[0480] Each SRS resource among all SRS resources of at least one SRS resource set corresponds to one of the at least one resource groups.

[0481] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

[0482] If each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources of at least one SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group.

[0483] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0484] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

[0485] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources of at least one SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0486] Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets of the at least one SRS resource set is greater than the value of y, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

[0487] Optionally, at least one resource group corresponds to at least one terminal device antenna port group, or antenna panel, or sub-receiver one by one.

[0488] Optionally, at least one resource group includes a first resource group and a second resource group;

[0489] Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

[0490] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

[0491] The first SRS resource among the M SRS resources corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

[0492] Optionally, the first SRS resource includes the first or the first several SRS resources among the M SRS resources;

[0493] The second SRS resource includes the remaining SRS resources among the M SRS resources except the first SRS resource.

[0494] Optionally, the SRS resource ID of each SRS resource in the first SRS resource is odd;

[0495] The SRS resource ID of each SRS resource in the second SRS resource is even.

[0496] Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of the SRS resource IDs within the same SRS resource set; or,

[0497] if all SRS resource sets in at least one SRS resource set include M SRS resources, the M SRS resources are first sorted in the order of the SRS resource set IDs, and then sorted in the order of the SRS resource IDs within the same SRS resource set.

[0498] Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

[0499] The port group corresponding to each SRS port among all SRS ports of at least one SRS resource set is one of at least one port group.

[0500] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

[0501] if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group.

[0502] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0503] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in at least one SRS resource set is less than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0504] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than a preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0505] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in at least one SRS resource set is greater than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0506] Optionally, at least one port group corresponds to at least one terminal device antenna port group or antenna panel or sub-receiver one by one.

[0507] Optionally, at least one port group includes a first port group and a second port group;

[0508] All SRS resources within each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

[0509] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent, or aperiodic, and X is a positive integer.

[0510] The first SRS port among the X SRS ports corresponds to a first port group, and the second SRS port corresponds to a second port group.

[0511] Optionally, the first SRS port is the or the first several SRS ports;

[0512] The second SRS port is the remaining SRS ports among the X SRS ports other than the first SRS port.

[0513] Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

[0514] The SRS port ID of each SRS port in the second SRS port is an even number.

[0515] Optionally, if all SRS resources within each SRS resource set in at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource; or,

[0516] if each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs within the same SRS resource; or,

[0517] if all SRS resources in at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource set IDs, then in the order of the SRS resource IDs within the same SRS resource set, and finally in the order of the SRS port IDs within the same SRS resource.

[0518] III. Example description of the functional units of a communication device

[0519] The above mainly introduces the solutions of the embodiments of the present application from the perspective of the method side. It can be understood that in order for the terminal device to implement the above functions, it includes the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0520] The embodiments of the present application can divide the functional units of the terminal device according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated units can be implemented in the form of hardware or in the form of software program modules. It should be noted that the division of units in the embodiments of the present application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0521] In the case of adopting integrated units, Figure 4 is a block diagram of the functional unit composition of a communication device according to an embodiment of the present application. Among them, the communication device 400 includes an acquisition unit 401.

[0522] Optionally, the acquisition unit 401 can be a module unit for acquiring and processing signals, information, etc., and there is no specific limitation on this.

[0523] Optionally, the communication device 400 can further include a sending unit. Among them, the sending unit can be a module unit for sending and processing signals, information, etc., and there is no specific limitation on this.

[0524] Optionally, the communication device 400 can further include a storage unit for storing the computer program code or instructions executed by the communication device 400. Among them, the storage unit can be a memory.

[0525] Optionally, the communication device 400 can be a chip or a chip module.

[0526] Optionally, the acquisition unit 401 can be integrated in the communication unit. Among them, the communication unit can be a communication interface, a transceiver, a transceiver circuit, etc.

[0527] Optionally, the acquisition unit 401 can be integrated in the processing unit.

[0528] It should be noted that the processing unit may be a processor or a controller. For example, it may be a baseband processor, a baseband chip, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of this application. The processing unit may also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0529] Optionally, the communication device 400 is used to execute any step performed by a terminal device / chip / chip module, etc. in the above method embodiments.

[0530] In specific implementation, the obtaining unit 401 is used to execute any step in the above method embodiments, and when performing actions such as sending, it can optionally call other units to complete the corresponding operations. Details are described below.

[0531] The obtaining unit 401 is configured to obtain at least one SRS resource set. The at least one SRS resource set is used for antenna switching. Each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0532] Each SRS resource set in the at least one SRS resource set corresponds to a set group; or,

[0533] Each SRS resource among all the SRS resources in the at least one SRS resource set corresponds to a resource group; or,

[0534] Each SRS port among all the SRS ports in the at least one SRS resource set corresponds to a port group.

[0535] It can be seen that in this embodiment, each SRS resource set in at least one SRS resource set corresponds to a set group, or each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group, or each SRS port in all SRS ports of at least one SRS resource set corresponds to a port group, so as to group the SRS, so as to adapt the SRS antenna switching under multiple sub-receivers through SRS grouping, and ensure the uplink transmission performance and reliability.

[0536] It should be noted that Figure 4 For the specific implementation of each operation in the above embodiment, reference can be made to the description in the method embodiment shown above, and details will not be repeated here.

[0537] Optionally, at least one SRS resource set corresponds to at least one set group;

[0538] The set group corresponding to each SRS resource set in at least one SRS resource set is one of at least one set group.

[0539] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to one set group; or,

[0540] If each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to one set group.

[0541] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

[0542] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0543] Optionally, if each of the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, the at least one SRS resource set corresponds to multiple set groups.

[0544] If the SRS antenna switching mode configured by the network is xTyR, each of the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is greater than the value of y, the at least one SRS resource set corresponds to multiple set groups.

[0545] Optionally, at least one set group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

[0546] Optionally, the at least one set group includes a first set group and a second set group;

[0547] The at least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or aperiodic, and N is a positive integer;

[0548] The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

[0549] Optionally, the first SRS resource set includes the first or the first several SRS resource sets among the N SRS resource sets;

[0550] The second SRS resource set includes the remaining SRS resource sets among the N SRS resource sets except the first SRS resource set.

[0551] Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is odd;

[0552] The SRS resource set ID of each SRS resource set in the second SRS resource set is even.

[0553] Optionally, the N SRS resource sets are sorted in the order of the SRS resource set ID.

[0554] Optionally, all SRS resources of the at least one SRS resource set correspond to at least one resource group;

[0555] Each resource group corresponding to each SRS resource among all SRS resources of at least one SRS resource set is one of at least one resource group.

[0556] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

[0557] If each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group.

[0558] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0559] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in at least one SRS resource set is less than the value of y, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0560] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0561] Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in at least one SRS resource set is greater than the value of y, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0562] Optionally, at least one resource group corresponds to at least one terminal device antenna port group or antenna panel or sub-receiver one by one.

[0563] Optionally, at least one resource group includes a first resource group and a second resource group;

[0564] Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

[0565] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

[0566] The first SRS resource among the M SRS resources corresponds to a first resource group, and the second SRS resource corresponds to a second resource group.

[0567] Optionally, the first SRS resource includes the first or the first among the M SRS resources;

[0568] The second SRS resource includes the remaining SRS resources among the M SRS resources other than the first SRS resource.

[0569] Optionally, the SRS resource ID of each SRS resource in the first SRS resource is odd;

[0570] The SRS resource ID of each SRS resource in the second SRS resource is even.

[0571] Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, then the M SRS resources are sorted in the order of the SRS resource IDs within the same SRS resource set; or,

[0572] if all SRS resource sets in at least one SRS resource set include M SRS resources, then the M SRS resources are sorted first in the order of the SRS resource set IDs and then in the order of the SRS resource IDs within the same SRS resource set.

[0573] Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

[0574] Each SRS port among all SRS ports of at least one SRS resource set corresponds to one of the at least one port groups.

[0575] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources within the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

[0576] If each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group.

[0577] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than the preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0578] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in at least one SRS resource set is less than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0579] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than the preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0580] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in at least one SRS resource set is greater than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0581] Optionally, at least one port group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

[0582] Optionally, at least one port group includes a first port group and a second port group;

[0583] All SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

[0584] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or aperiodic, and X is a positive integer.

[0585] The first SRS port among the X SRS ports corresponds to the first port group, and the second SRS port corresponds to the second port group.

[0586] Optionally, the first SRS port is the or the first several SRS ports;

[0587] The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

[0588] Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

[0589] The SRS port ID of each SRS port in the second SRS port is an even number.

[0590] Optionally, if all the SRS resources in each SRS resource set among at least one SRS resource set include X SRS ports, the X SRS ports are first sorted in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource; or,

[0591] if each SRS resource in at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs within the same SRS resource; or,

[0592] if all the SRS resources in at least one SRS resource set include X SRS ports, the X SRS ports are first sorted in the order of the SRS resource set IDs, then in the order of the SRS resource IDs within the same SRS resource set, and finally in the order of the SRS port IDs within the same SRS resource.

[0593] IV. Another example description of the functional units of a communication device

[0594] The above mainly introduces the solutions of the embodiments of the present application from the perspective of the method side. It can be understood that in order for the network device to implement the above functions, it includes the corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0595] Embodiments of this application can divide functional units of a network device according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiments of this application is illustrative, only a logical function division, and there can be other division methods in actual implementation.

[0596] In the case of adopting an integrated unit, Figure 5 is a block diagram of the composition of functional units of another communication device according to an embodiment of this application. Among them, the communication device 500 includes a sending unit 501.

[0597] Optionally, the sending unit 501 can be a module unit for performing sending processing on signals, information, etc., and no specific limitation is made thereto.

[0598] Optionally, the communication device 500 can further include a receiving unit. Among them, the receiving unit can be a module unit for performing receiving processing on signals, information, etc., and no specific limitation is made thereto.

[0599] Optionally, the communication device 500 can further include a storage unit for storing the computer program code or instructions executed by the communication device 500. Among them, the storage unit can be a memory.

[0600] Optionally, the communication device 500 can be a chip or a chip module.

[0601] Optionally, the sending unit 501 can be integrated in a communication unit. Among them, the communication unit can be a communication interface, a transceiver, a transceiver circuit, etc.

[0602] Optionally, the sending unit 501 can be integrated in a processing unit.

[0603] It should be noted that the processing unit can be a processor or a controller. For example, it can be a baseband processor, a baseband chip, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logic blocks, modules, and circuits described in connection with the disclosure of this application. The processing unit can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0604] Optionally, the communication device 500 is used to execute any step performed by a chip / chip module / network device, etc. in the above method embodiments.

[0605] In specific implementation, the sending unit 501 is used to execute any step in the above method embodiments, and when performing actions such as sending, it can optionally call other units to complete the corresponding operations. Details are described below.

[0606] The sending unit 501 is used to send information for configuring at least one set of SRS resources. The at least one set of SRS resources is used for antenna switching. Each set of SRS resources in the at least one set of SRS resources includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0607] Each set of SRS resources in the at least one set of SRS resources corresponds to a set group; or,

[0608] Each SRS resource among all SRS resources in the at least one set of SRS resources corresponds to a resource group; or,

[0609] Each SRS port among all SRS ports in the at least one set of SRS resources corresponds to a port group.

[0610] It can be seen that in this embodiment, each of at least one SRS resource set corresponds to a set group, or each of all SRS resources in at least one SRS resource set corresponds to a resource group, or each of all SRS ports in at least one SRS resource set corresponds to a port group, so as to group the SRS, so as to adapt the SRS antenna switching under multiple sub-receivers through SRS grouping, and ensure the uplink transmission performance and reliability.

[0611] It should be noted that Figure 5 For the specific implementation of each operation in the above-mentioned embodiment, reference can be made to the description in the method embodiment shown above, and details are not described herein again.

[0612] Optionally, at least one SRS resource set corresponds to at least one set group;

[0613] The set group corresponding to each SRS resource set in at least one SRS resource set is one of at least one set group.

[0614] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group; or,

[0615] If each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then at least one SRS resource set corresponds to a set group.

[0616] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

[0617] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in the at least one SRS resource set is less than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0618] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than a preset value, then at least one SRS resource set corresponds to multiple set groups.

[0619] If the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in the at least one SRS resource set is greater than the value of y, then the at least one SRS resource set corresponds to multiple set groups.

[0620] Optionally, at least one set group corresponds one-to-one to at least one terminal device receiving antenna port group or antenna panel or sub-receiver.

[0621] Optionally, at least one set group includes a first set group and a second set group;

[0622] At least one SRS resource set includes N SRS resource sets, each of the N SRS resource sets is periodic, semi-persistent or aperiodic, and N is a positive integer;

[0623] The N SRS resource sets include a first SRS resource set and a second SRS resource set. The first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

[0624] Optionally, the first SRS resource set includes the first or the first several SRS resource sets;

[0625] The second SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set.

[0626] Optionally, the SRS resource set ID of each SRS resource set in the first SRS resource set is odd;

[0627] The SRS resource set ID of each SRS resource set in the second SRS resource set is even.

[0628] Optionally, the N SRS resource sets are sorted in the order of the SRS resource set ID.

[0629] Optionally, all SRS resources of at least one SRS resource set correspond to at least one resource group;

[0630] The resource group corresponding to each SRS resource among all SRS resources of at least one SRS resource set is one of the at least one resource groups.

[0631] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group; or,

[0632] If each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then all SRS resources of at least one SRS resource set correspond to one resource group.

[0633] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0634] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in at least one SRS resource set is less than the value of y, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0635] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than a preset value, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0636] Optionally, if the antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in at least one SRS resource set is greater than the value of y, then all SRS resources of at least one SRS resource set correspond to multiple resource groups.

[0637] Optionally, at least one resource group corresponds one-to-one to at least one terminal device antenna port group or antenna panel or sub-receiver.

[0638] Optionally, at least one resource group includes a first resource group and a second resource group;

[0639] Each SRS resource set in at least one SRS resource set includes M SRS resources, or all SRS resource sets in at least one SRS resource set include M SRS resources;

[0640] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer;

[0641] The first SRS resource among the M SRS resources corresponds to a first resource group, and the second SRS resource corresponds to a second resource group.

[0642] Optionally, the first SRS resource includes the first or the first among the M SRS resources;

[0643] The second SRS resource includes the remaining SRS resources among the M SRS resources except the first SRS resource.

[0644] Optionally, the SRS resource ID of each SRS resource in the first SRS resource is an odd number;

[0645] The SRS resource ID of each SRS resource in the second SRS resource is an even number.

[0646] Optionally, if each SRS resource set in at least one SRS resource set includes M SRS resources, the M SRS resources are sorted in the order of the SRS resource IDs within the same SRS resource set; or,

[0647] if all SRS resource sets in at least one SRS resource set include M SRS resources, the M SRS resources are first sorted in the order of the SRS resource set IDs, and then in the order of the SRS resource IDs within the same SRS resource set.

[0648] Optionally, all SRS ports of at least one SRS resource set correspond to at least one port group;

[0649] Each SRS port among all SRS ports of at least one SRS resource set corresponds to one of the at least one port groups.

[0650] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources within the target SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group; or,

[0651] If each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is less than or equal to a preset value, then all SRS ports of at least one SRS resource set correspond to one port group.

[0652] Optionally, if each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set is greater than the preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0653] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources in each SRS resource set in at least one SRS resource set is less than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0654] Optionally, if each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in at least one SRS resource set is greater than the preset value, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0655] Optionally, if the SRS antenna switching mode configured by the network is xTyR, each SRS resource set in at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resource sets in at least one SRS resource set is greater than the value of y, then all SRS ports of at least one SRS resource set correspond to multiple port groups.

[0656] Optionally, at least one port group corresponds to at least one terminal device antenna port group, or antenna panel, or sub-receiver one by one.

[0657] Optionally, at least one port group includes a first port group and a second port group;

[0658] All SRS resources in each SRS resource set in at least one SRS resource set include X SRS ports; or, each SRS resource in at least one SRS resource set includes X SRS ports; or, all SRS resources in at least one SRS resource set include X SRS ports;

[0659] Each SRS resource set in at least one SRS resource set is periodic, semi-persistent or aperiodic, and X is a positive integer.

[0660] The first SRS port among the X SRS ports corresponds to the first port group, and the second SRS port corresponds to the second port group.

[0661] Optionally, the first SRS port is the or the first several SRS ports;

[0662] The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

[0663] Optionally, the SRS port ID of each SRS port in the first SRS port is an odd number;

[0664] The SRS port ID of each SRS port in the second SRS port is an even number.

[0665] Optionally, if all SRS resources in each SRS resource set among at least one SRS resource set include X SRS ports, then the X SRS ports are sorted first in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource; or,

[0666] if each SRS resource in at least one SRS resource set includes X SRS ports, then the X SRS ports are sorted in the order of the SRS port IDs within the same SRS resource; or,

[0667] if all SRS resources in at least one SRS resource set include X SRS ports, then the X SRS ports are sorted first in the order of the SRS resource set IDs, then in the order of the SRS resource IDs within the same SRS resource set, and finally in the order of the SRS port IDs within the same SRS resource.

[0668] V. Example Illustration of a Terminal Device

[0669] Please refer to Figure 6 , Figure 6 which is a schematic structural diagram of a terminal device according to an embodiment of the present application. Among them, the terminal device 600 may include a processor 610, a memory 620, and a communication bus for connecting the processor 610 and the memory 620.

[0670] Optionally, the memory 620 includes, but is not limited to, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM). The memory 620 is used to store program codes executed by the terminal device 600 and data transmitted thereby.

[0671] Optionally, the terminal device 600 further includes a communication interface for receiving and sending data.

[0672] Optionally, the terminal device 600 may be the first terminal device described above.

[0673] Optionally, the processor 610 may be one or more CPUs. When the processor 610 is a single CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0674] Optionally, the processor 610 may be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.

[0675] In a specific implementation, the processor 610 in the terminal device 600 is configured to execute a computer program or instruction 621 stored in the memory 620 and perform the following operations:

[0676] Obtain at least one SRS resource set, where the at least one SRS resource set is used for antenna switching. Each SRS resource set in the at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0677] Each SRS resource set in the at least one SRS resource set corresponds to a set group; or,

[0678] Each SRS resource among all the SRS resources in the at least one SRS resource set corresponds to a resource group; or,

[0679] Each SRS port among all the SRS ports in the at least one SRS resource set corresponds to a port group.

[0680] It can be seen that in this embodiment, each SRS resource set in at least one SRS resource set can correspond to a set group, or each SRS resource in all SRS resources of at least one SRS resource set can correspond to a resource group, or each SRS port in all SRS ports of at least one SRS resource set can correspond to a port group, so as to group the SRS, so as to adapt the SRS antenna switching under multiple sub-receivers through SRS grouping, and ensure the uplink transmission performance and reliability.

[0681] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above. The terminal device 600 can be used to execute the method embodiment of the present application above, which will not be elaborated here.

[0682] VI. Example description of a network device

[0683] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of a network device provided by an embodiment of the present application. Among them, the network device 700 includes a processor 710, a memory 720, and a communication bus for connecting the processor 710 and the memory 720.

[0684] Optionally, the memory 720 includes but is not limited to RAM, ROM, EPROM, or CD-ROM, and the memory 720 is used to store relevant instructions and data.

[0685] Optionally, the network device 700 further includes a communication interface, which is used to receive and send data.

[0686] Optionally, the processor 710 can be one or more CPUs. When the processor 710 is a single CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0687] Optionally, the processor 710 can be a baseband chip, a chip, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof.

[0688] Optionally, the processor 710 in the network device 700 is used to execute the computer program or instruction 721 stored in the memory 720, and perform the following operations:

[0689] Send information for configuring at least one SRS resource set, where at least one SRS resource set is used for antenna switching, each SRS resource set in at least one SRS resource set includes at least one SRS resource, and each SRS resource includes at least one SRS port;

[0690] Each SRS resource set in at least one SRS resource set corresponds to a set group; or,

[0691] Each SRS resource in all SRS resources of at least one SRS resource set corresponds to a resource group; or,

[0692] Each SRS port in all SRS ports of at least one SRS resource set corresponds to a port group.

[0693] It can be seen that in this embodiment, the SRS can be grouped by making each SRS resource set in at least one SRS resource set correspond to a set group, or making each SRS resource in all SRS resources of at least one SRS resource set correspond to a resource group, or making each SRS port in all SRS ports of at least one SRS resource set correspond to a port group, so as to adapt the SRS antenna switching under multiple sub-receivers through SRS grouping and ensure the uplink transmission performance and reliability.

[0694] It should be noted that the specific implementation of each operation can adopt the corresponding description of the method embodiment shown above. The network device 700 can be used to execute the method embodiment of the present application, and details are not described herein again.

[0695] VII. Other related example descriptions

[0696] Optionally, the above method embodiment can be applied to a terminal device or in a terminal device. That is to say, the execution subject of the above method embodiment can be a terminal device, a chip, a chip module or a module, etc., and no specific limitation is made thereto.

[0697] Optionally, the above method embodiment can be applied to a network device or in a network device. That is to say, the execution subject of the above method embodiment can be a network device, a chip, a chip module or a module, etc., and no specific limitation is made thereto.

[0698] The embodiment of the present application further provides a chip, including a processor, a memory, and a computer program or instruction stored on the memory. The processor executes the computer program or instruction to implement the steps described in the above method embodiment.

[0699] The embodiment of the present application further provides a chip module, including a transceiver component and a chip. The chip includes a processor, a memory, and a computer program or instruction stored on the memory. The processor executes the computer program or instruction to implement the steps described in the above method embodiment.

[0700] The embodiments of the present application also provide a computer-readable storage medium storing a computer program or instructions, and when the computer program or instructions are executed, the steps described in the above method embodiments are implemented.

[0701] The embodiments of the present application also provide a computer program product including a computer program or instructions, and when the computer program or instructions are executed, the steps described in the above method embodiments are implemented.

[0702] The embodiments of the present application also provide a communication system including the above terminal device and the above network device.

[0703] It should be noted that, for the above embodiments, for simplicity of description, they are all expressed as a series of action combinations. Those skilled in the art should understand that the present application is not limited by the described order of actions, because some steps in the embodiments of the present application can be performed in other orders or simultaneously. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions, steps, modules or units involved are not necessarily essential to the embodiments of the present application.

[0704] In the above embodiments, the descriptions of the embodiments of the present application have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0705] The steps of the method or algorithm described in the embodiments of the present application can be implemented in a hardware manner or by a processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in RAM, flash memory, ROM, EPROM, electrically erasable programmable read-only memory (EEPROM), registers, hard disk, removable hard disk, compact disc read-only memory (CD-ROM), or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in the terminal device or the management device. Of course, the processor and the storage medium can also exist as discrete components in the terminal device or the management device.

[0706] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wirelessly (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that the computer can access or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0707] Each device and product described in the above embodiments includes various modules / units, which can be software modules / units, hardware modules / units, or partly software modules / units and partly hardware modules / units. For example, for each device and product applied to or integrated into a chip, each module / unit it includes can be implemented in the form of hardware such as circuits. Alternatively, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the chip, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a chip module, each module / unit it includes can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components of the chip module. Alternatively, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the chip module, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits. For each device and product applied to or integrated into a terminal device, each module / unit it includes can be implemented in the form of hardware such as circuits. Different modules / units can be located in the same component (such as a chip, a circuit module, etc.) or different components inside the terminal device. Alternatively, at least some of the modules / units can be implemented in the form of software programs that run on the processor integrated inside the terminal device, and the remaining (if any) part of the modules / units can be implemented in the form of hardware such as circuits.

[0708] The specific implementation manners described above further elaborate on the objectives, technical solutions, and beneficial effects of the embodiments of the present application. It should be understood that the above description is only the specific implementation manners of the embodiments of the present application and is not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A communication method, characterized in that, it includes: obtaining at least one set of sounding reference signal (SRS) resources for antenna switching, where each set of the at least one set of SRS resources includes at least one SRS resource, and each SRS resource includes at least one SRS port; each set of the at least one set of SRS resources corresponds to a set group; or, each SRS resource among all SRS resources of the at least one set of SRS resources corresponds to a resource group; or, each SRS port among all SRS ports of the at least one set of SRS resources corresponds to a port group.

2. A communication method, characterized in that, it includes: sending information for configuring at least one set of sounding reference signal (SRS) resources for antenna switching, where each set of the at least one set of SRS resources includes at least one SRS resource, and each SRS resource includes at least one SRS port; each set of the at least one set of SRS resources corresponds to a set group; or, each SRS resource among all SRS resources of the at least one set of SRS resources corresponds to a resource group; or, each SRS port among all SRS ports of the at least one set of SRS resources corresponds to a port group.

3. The method according to claim 1 or 2, characterized in that, the at least one set of SRS resources corresponds to at least one set group; the set group corresponding to each set of the at least one set of SRS resources is one of the at least one set group.

4. The method according to claim 3, characterized in that, if each set of the at least one set of SRS resources is periodic or semi-persistent, there is a target set of SRS resources in the at least one set of SRS resources, and the sum of the number of SRS ports of all SRS resources within the target set of SRS resources is less than or equal to a preset value, then the at least one set of SRS resources corresponds to one set group; or, if each set of the at least one set of SRS resources is aperiodic and the sum of the number of SRS ports of all SRS resources of the at least one set of SRS resources is less than or equal to a preset value, then the at least one set of SRS resources corresponds to one set group.

5. The method according to claim 3, characterized in that, if each set of the at least one set of SRS resources is periodic or semi-persistent and the sum of the number of SRS ports of all SRS resources within each set of SRS resources is greater than a preset value, then the at least one set of SRS resources corresponds to multiple set groups; or, If each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is greater than a preset value, then the at least one SRS resource set corresponds to multiple set groups.

6. The method according to any one of claims 2-5, wherein, the at least one set group corresponds to at least one terminal device receiving antenna port group or antenna panel or sub-receiver one by one.

7. The method according to any one of claims 3-6, wherein, the at least one set group includes a first set group and a second set group; the at least one SRS resource set includes N SRS resource sets, each SRS resource set in the N SRS resource sets is periodic, semi-persistent or aperiodic, and N is a positive integer; the N SRS resource sets include a first SRS resource set and a second SRS resource set, the first SRS resource set corresponds to the first set group, and the second SRS resource set corresponds to the second set group.

8. The method according to claim 7, wherein, The first SRS resource set includes the first or the first SRS resource sets among the N SRS resource sets; the second SRS resource set includes the remaining SRS resource sets in the N SRS resource sets except the first SRS resource set.

9. The method according to claim 7, wherein, the SRS resource set ID of each SRS resource set in the first SRS resource set is an odd number; the SRS resource set ID of each SRS resource set in the second SRS resource set is an even number.

10. The method according to any one of claims 7-9, wherein, the N SRS resource sets are sorted in the order of the SRS resource set ID.

11. The method according to claim 1 or 2, wherein, all SRS resources of the at least one SRS resource set correspond to at least one resource group; the resource group corresponding to each SRS resource among all SRS resources of the at least one SRS resource set is one of the at least one resource group.

12. The method according to claim 11, wherein, if each SRS resource set in the at least one SRS resource set is periodic or semi-persistent, there is a target SRS resource set in the at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources in the target SRS resource set is less than or equal to the preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group; or, if each SRS resource set in the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources in the at least one SRS resource set is less than or equal to the preset value, then all SRS resources of the at least one SRS resource set correspond to one resource group.

13. The method according to claim 11, wherein, If each of the at least one SRS resource set is periodic or semi-persistent, and the sum of the SRS port numbers of all SRS resources within each SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups; Or, If each of the at least one SRS resource set is aperiodic, and the sum of the SRS port numbers of all SRS resources of the at least one SRS resource set is greater than a preset value, then all SRS resources of the at least one SRS resource set correspond to multiple resource groups.

14. The method according to any one of claims 11 - 13, wherein, The at least one resource group corresponds to at least one terminal device antenna port group or antenna panel or sub-receiver one by one.

15. The method according to any one of claims 11 - 14, wherein, The at least one resource group includes a first resource group and a second resource group; Each of the at least one SRS resource set includes M SRS resources, or all SRS resource sets of the at least one SRS resource set include M SRS resources; Each of the at least one SRS resource set is periodic, semi-persistent or aperiodic, and M is a positive integer; The first SRS resource among the M SRS resources corresponds to the first resource group, and the second SRS resource corresponds to the second resource group.

16. The method according to claim 15, wherein, The first SRS resource includes the first or the first SRS resources among the M SRS resources; The second SRS resource includes the remaining SRS resources among the M SRS resources except the first SRS resource.

17. The method according to claim 15, wherein, The SRS resource ID of each SRS resource in the first SRS resource is an odd number; The SRS resource ID of each SRS resource in the second SRS resource is an even number.

18. The method according to any one of claims 15 - 17, wherein, If each of the at least one SRS resource set includes M SRS resources, then the M SRS resources are sorted in the order of the SRS resource IDs within the same SRS resource set; or, If all SRS resource sets of the at least one SRS resource set include M SRS resources, then the M SRS resources are first sorted in the order of the SRS resource set IDs, and then in the order of the SRS resource IDs within the same SRS resource set.

19. The method according to claim 1 or 2, wherein, All SRS ports of the at least one SRS resource set correspond to at least one port group; The port group corresponding to each SRS port among all SRS ports of the at least one SRS resource set is one of the at least one port group.

20. The method according to claim 19, wherein, If each of the at least one SRS resource set is periodic or semi-persistent, there exists a target SRS resource set in the at least one SRS resource set, and the sum of the SRS port numbers of all SRS resources within the target SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group; or, If each of the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources of the at least one SRS resource set is less than or equal to a preset value, then all SRS ports of the at least one SRS resource set correspond to one port group.

21. The method according to claim 19, wherein, If each of the at least one SRS resource set is periodic or semi-persistent and the sum of the SRS port numbers of all SRS resources within each SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups; or, If each of the at least one SRS resource set is aperiodic and the sum of the SRS port numbers of all SRS resources of the at least one SRS resource set is greater than a preset value, then all SRS ports of the at least one SRS resource set correspond to multiple port groups.

22. The method according to any one of claims 19-21, wherein, The at least one port group corresponds to at least one terminal device antenna port group or antenna panel or sub-receiver one by one.

23. The method according to any one of claims 19-22, wherein, The at least one port group includes a first port group and a second port group; All SRS resources within each SRS resource set of the at least one SRS resource set include X SRS ports; Or, each SRS resource of the at least one SRS resource set includes X SRS ports; Or, all SRS resources of the at least one SRS resource set include X SRS ports; Each of the at least one SRS resource set is periodic, semi-persistent or aperiodic, X is a positive integer, The first SRS port among the X SRS ports corresponds to the first port group, and the second SRS port corresponds to the second port group.

24. The method according to claim 23, wherein, The first SRS port is the front or the front SRS ports; The second SRS port is the remaining SRS ports among the X SRS ports except the first SRS port.

25. The method according to claim 23, wherein, The SRS port ID of each SRS port in the first SRS port is an odd number; The SRS port ID of each SRS port in the second SRS port is an even number.

26. The method according to any one of claims 23-25, wherein, If all SRS resources in each SRS resource set of the at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource IDs within the same SRS resource set, and then in the order of the SRS port IDs within the same SRS resource; or, If each SRS resource in the at least one SRS resource set includes X SRS ports, the X SRS ports are sorted in the order of the SRS port IDs within the same SRS resource; or, If all SRS resources of the at least one SRS resource set include X SRS ports, the X SRS ports are sorted first in the order of the SRS resource set IDs, then in the order of the SRS resource IDs within the same SRS resource set, and finally in the order of the SRS port IDs within the same SRS resource.

27. A communication device, characterized in that, comprising: an acquisition unit, configured to acquire at least one sounding reference signal SRS resource set, the at least one SRS resource set being used for antenna switching, each SRS resource set in the at least one SRS resource set including at least one SRS resource, and each SRS resource including at least one SRS port; each SRS resource set in the at least one SRS resource set corresponds to a set group; or, each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, each SRS port in all SRS ports of the at least one SRS resource set corresponds to a port group.

28. A communication device, characterized in that, comprising: a sending unit, configured to send information for configuring at least one sounding reference signal SRS resource set, the at least one SRS resource set being used for antenna switching, each SRS resource set in the at least one SRS resource set including at least one SRS resource, and each SRS resource including at least one SRS port; each SRS resource set in the at least one SRS resource set corresponds to a set group; or, each SRS resource in all SRS resources of the at least one SRS resource set corresponds to a resource group; or, each SRS port in all SRS ports of the at least one SRS resource set corresponds to a port group.

29. A terminal device, comprising a processor, a memory, and a computer program or instruction stored in the memory, characterized in that, the processor executes the computer program or instruction to implement the steps of the method according to any one of claims 1, 3 - 16.

30. A network device, comprising a processor, a memory, and a computer program or instruction stored in the memory, characterized in that, the processor executes the computer program or instruction to implement the steps of the method according to any one of claims 1, 2 - 16.

31. A chip, comprising a processor and a communication interface, characterized in that, the processor executes the steps of the method according to any one of claims 1 - 26.

32. A computer-readable storage medium, characterized in that, it stores a computer program or instructions, and when the computer program or instructions are executed, the steps of the method according to any one of claims 1-26 are executed.

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