Wireless Communication Method and Device

Abstract

An embodiment of the present application provides a wireless communication method and device. The method includes: receiving first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) triggering signaling on a first cell is used to trigger SRS on at least one second cell. Through the first indication information, the aperiodic SRS triggering signaling on the first cell can trigger the SRS transmission of a terminal device on at least one second cell. In other words, it can achieve the triggering transmission of aperiodic SRS across cells (or across carriers) in a multi-cell scenario.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of communications, and more specifically, to wireless communication methods and devices. Background Art

[0002] In a New Radio (NR) system, a network device may trigger a terminal device to transmit an aperiodic sounding reference signal (SRS) through an aperiodic SRS trigger signaling.

[0003] However, if the aperiodic SRS trigger signaling is sent on cell X, the aperiodic SRS trigger signaling can only trigger the transmission of an aperiodic SRS on the uplink corresponding to cell X. However, this triggering method has many limitations for multi-cell scenarios. For example, in the Carrier Aggregation (CA) scenario.

[0004] Therefore, how to achieve the triggering transmission of cross-cell (or cross-carrier) aperiodic SRS in a multi-cell scenario is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] Embodiments of the present application provide a wireless communication method and device, which can achieve the triggering transmission of cross-cell (or cross-carrier) aperiodic SRS in a multi-cell scenario.

[0006] In a first aspect, a wireless communication method is provided, including:

[0007] Receiving first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) trigger signaling on a first cell is used to trigger an SRS on at least one second cell.

[0008] In a second aspect, a wireless communication method is provided, including:

[0009] Sending first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) trigger signaling on a first cell is used to trigger an SRS on at least one second cell.

[0010] In a third aspect, a wireless communication method is provided, including:

[0011] Receiving second indication information, where the second indication information is used to indicate that a sounding reference signal (SRS) on a first cell can be triggered by an aperiodic SRS trigger signaling on at least one third cell.

[0012] In a fourth aspect, a wireless communication method is provided, including:

[0013] Sending second indication information, where the second indication information is used to indicate that a sounding reference signal (SRS) on a first cell can be triggered by an aperiodic SRS trigger signaling on at least one third cell.

[0014] In a fifth aspect, a terminal device is provided for performing the method in the first aspect or its various implementation manners above. Specifically, the terminal device includes functional modules for performing the method in the first aspect or its various implementation manners above.

[0015] In a sixth aspect, a network device is provided for performing the method in the second aspect or its various implementation manners above. Specifically, the network device includes functional modules for performing the method in the second aspect or its various implementation manners above.

[0016] In a seventh aspect, a terminal device is provided for performing the method in the third aspect or its various implementation manners above. Specifically, the terminal device includes functional modules for performing the method in the third aspect or its various implementation manners above.

[0017] In an eighth aspect, a network device is provided for performing the method in the fourth aspect or its various implementation manners above. Specifically, the network device includes functional modules for performing the method in the fourth aspect or its various implementation manners above.

[0018] In a ninth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the first aspect or its various implementation manners above.

[0019] In a tenth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the second aspect or its various implementation manners above.

[0020] In an eleventh aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the third aspect or its various implementation manners above.

[0021] In a twelfth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method in the fourth aspect or its various implementation manners above.

[0022] In a thirteenth aspect, a chip is provided for implementing the method in any one of the first aspect to the fourth aspect or its various implementation manners above. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method in any one of the first aspect to the fourth aspect or its various implementation manners above.

[0023] In a fourteenth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in any one of the first aspect to the fourth aspect or its various implementation manners above.

[0024] In a fifteenth aspect, a computer program product is provided, including computer program instructions, and the computer program instructions cause a computer to execute the method in any one of the first aspect to the fourth aspect or its various implementation manners above.

[0025] In a sixteenth aspect, a computer program is provided, which when running on a computer, causes the computer to execute the method in any one of the first aspect to the fourth aspect or its various implementation manners above.

[0026] Based on the above technical solutions, through the first indication information, the aperiodic SRS triggering signaling on the first cell can trigger the SRS transmission of the terminal device on at least one second cell. In other words, it is possible to achieve the triggering transmission of aperiodic SRS across cells (or across carriers) in a multi-cell scenario.

[0027] In addition, it is avoided that the SRS is triggered only by the aperiodic SRS triggering signaling received by each cell itself, which can not only improve the flexibility of the triggering signaling, but also reduce the resource consumption of the aperiodic SRS triggering signaling (DCI). Description of the Drawings

[0028] Figure 1 is an example of the system framework provided by an embodiment of the present application.

[0029] Figure 2 and Figure 3 is a schematic interaction diagram of the wireless communication method provided by an embodiment of the present application.

[0030] Figure 4 is a schematic block diagram of the terminal device provided by an embodiment of the present application.

[0031] Figure 5 is a schematic block diagram of the network device provided by an embodiment of the present application

[0032] Figure 6 is another schematic block diagram of the terminal device provided by an embodiment of the present application.

[0033] Figure 7 It is another schematic block diagram of the network device provided by the embodiment of the present application.

[0034] Figure 8 It is a schematic block diagram of the communication device provided by the embodiment of the present application.

[0035] Figure 9 It is a schematic block diagram of the chip provided by the embodiment of the present application. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0037] Figure 1 It is a schematic diagram of an application scenario of the embodiment of the present application.

[0038] As Figure 1 shown, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 through the air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0039] It should be understood that the embodiments of the present application are only exemplarily described by taking the communication system 100 as an example, but the embodiments of the present application are not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), 5G communication system (also known as New Radio (NR) communication system), or future communication systems, etc.

[0040] In Figure 1 the shown communication system 100, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 (such as a UE) located within the coverage area.

[0041] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a radio controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future-evolved Public Land Mobile Network (PLMN), etc.

[0042] The terminal device 110 may be any terminal device, including but not limited to a terminal device that is connected to the network device 120 or other terminal devices by wire or wirelessly.

[0043] For example, the terminal device 110 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile device, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future-evolved network, etc.

[0044] The terminal device 110 may be used for Device to Device (D2D) communication.

[0045] The wireless communication system 100 may further include a core network device 130 that communicates with the base station. The core network device 130 may be a 5G Core (5GC) device. For example, it may be an Access and Mobility Management Function (AMF), or an Authentication Server Function (AUSF), or a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of the LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that SMF and PGW-C can achieve. During the network evolution process, the above core network devices may also have other names, or new network entities may be formed by partitioning the functions of the core network. The embodiments of this application do not limit this.

[0046] Each functional unit in the communication system 100 may also establish a connection through a next generation (NG) interface to achieve communication.

[0047] For example, the terminal device establishes a radio interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device may establish a control plane signaling connection with the AMF through the NG interface 1 (abbreviated as N1); the access network device, such as a next generation radio access base station (gNB), may establish a user plane data connection with the UPF through the NG interface 3 (abbreviated as N3); the access network device may establish a control plane signaling connection with the AMF through the NG interface 2 (abbreviated as N2); the UPF may establish a control plane signaling connection with the SMF through the NG interface 4 (abbreviated as N4); the UPF may interact with the data network for user plane data through the NG interface 6 (abbreviated as N6); the AMF may establish a control plane signaling connection with the SMF through the NG interface 11 (abbreviated as N11); the SMF may establish a control plane signaling connection with the PCF through the NG interface 7 (abbreviated as N7).

[0048] Figure 1Exemplarily, a base station, a core network device, and two terminal devices are shown. Optionally, the wireless communication system 100 may include multiple base station devices, and the coverage range of each base station may include other numbers of terminal devices. The embodiments of the present application do not limit this.

[0049] It should be understood that in the embodiments of the present application, devices with communication functions in the network / system can all be referred to as communication devices. Taking Figure 1 the shown communication system 100 as an example, the communication devices may include network devices 120 with communication functions and terminal devices 110. The network devices 120 and terminal devices 110 may be the devices described above, which will not be elaborated here; the communication devices may also include other devices in the communication system 100, such as network controllers, mobility management entities, and other network entities. The embodiments of the present application do not limit this.

[0050] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the preceding and following associated objects.

[0051] The embodiments of the present application provide a wireless communication method, which can be used to determine the time slot for sending SRS.

[0052] For the convenience of understanding the embodiments of the present application, SRS will be introduced below.

[0053] The sounding reference signal (SRS) is an important reference signal in the 5G / NR system and is widely used in various functions in the NR system. For example, SRS can be used in the following scenarios:

[0054] 1. For the acquisition of downlink channel state information (UE sounding procedure for DL CSI acquisition)

[0055] 2. For frequency-domain scheduling and precoding determination of uplink transmission;

[0056] 3. For the antenna switching function;

[0057] 4. For the carrier switching function (UE sounding procedure between component carriers);

[0058] 5. For positioning function;

[0059] 6. To cooperate with codebook-based uplink transmission;

[0060] 7. To cooperate with Non-Codebook based uplink transmission.

[0061] The network device can configure one or more SRS Resource sets for a terminal device, and each SRS Resource set can be configured with one or more SRS resources.

[0062] The transmission of SRS can be divided into Periodic, Semi-persistent, and Aperiodic.

[0063] Periodic SRS refers to the SRS transmitted periodically, whose period and slot offset are configured by RRC signaling. Once the terminal device receives the corresponding configuration parameters, it sends SRS according to a certain period until the RRC configuration becomes invalid. The Spatial Relation Info of the periodic SRS is also configured by RRC signaling. The Spatial Relation Info can indicate a Channel State Information Reference Signal (CSI-RS), a Synchronization Signal / PBCH Block (SSB), or a reference SRS. For example, the transmission beam of the periodic SRS can be indicated in an implicit manner. For example, the terminal device determines the transmission beam of the periodic SRS according to the indicated CSI-RS / SSB. Another example is that the terminal device can determine the transmission beam used to transmit SRS on the SRS resource through the Spatial Relation Info of the SRS resource.

[0064] The period and slot offset of the semi-persistent SRS are configured by RRC signaling, but its activation and deactivation signaling are carried by MAC CE. The terminal device starts to transmit SRS after receiving the activation signaling until it receives the deactivation signaling. The Spatial Relation Info (transmission beam) of the semi-persistent SRS is carried together with the MAC CE that activates the SRS.

[0065] After the terminal device receives the period and slot offset configured by RRC, it determines the time slots available for transmitting SRS according to the following formula:

[0066]

[0067] where T SRS and T offset are the configured period and offset, and n f and are the radio frame number and the slot number respectively.

[0068] An aperiodic SRS transmission means that the network device can trigger the SRS transmission of the terminal device through DCI. The triggering signaling for triggering the aperiodic SRS transmission can be carried by the DCI for scheduling PUSCH / PDSCH in either the UE-specific search space or the common search space, or can be carried by the DCI format 2_3 in the common search space.

[0069] Among them, the 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 (TPC) commands of the SRS on a group of UEs or a group of carriers at the same time.

[0070] Table 1 SRS Triggering Signaling

[0071]

[0072] For example, if the value of the SRS request field in the DCI is 11, the triggering signaling of the SRS indicates that the SRS resource group with the aperiodic SRS resource trigger (aperiodicSRS-ResourceTrigger) set to 3 in the higher layer parameters is used for SRS transmission.

[0073] After receiving the aperiodic SRS triggering signaling (such as DCI), the terminal device performs SRS transmission on the aperiodic SRS resource group indicated by the triggering signaling. Among them, the slot offset between the triggering signaling and the SRS transmission can be configured by the higher layer signaling (RRC). The network device pre-indicates to the terminal device the configuration parameters of each SRS resource group through the higher layer signaling, including time-frequency resources, sequence parameters, power control parameters, etc. In addition, for each SRS resource in the triggered SRS resource group, the terminal device can also determine the transmit beam used for transmitting the SRS on this resource through the spatial correlation information of this resource, and this spatial correlation information can be configured to each SRS resource through RRC.

[0074] In the New Radio (NR) system, to support various possible deployment scenarios and various future new service types, the system design is very flexible. For example, uplink and downlink resources can be indicated and adjusted through high-layer signaling and physical-layer signaling. Therefore, for a time slot (slot) or some symbols on a slot, they may be used for transmissions in different directions at different times. For example, at a certain moment, it can be used for uplink transmission, and at another moment, for downlink transmission.

[0075] However, as mentioned above, for the aperiodic Sounding Reference Signal (SRS), its slot offset can be configured by high-layer signaling. That is, before the RRC signaling reconfigures other values, the slot offset between each trigger signaling and SRS transmission remains unchanged, resulting in a fixed relative position between the slot for receiving the trigger signaling and the slot for sending the SRS, increasing the limitations and reducing the system flexibility.

[0076] For example, assuming the slot offset is k, if it is required to trigger the SRS to be transmitted on slot n + k, then the corresponding trigger signaling can only be sent on slot n, which restricts the timing of sending the trigger signaling and adds additional unnecessary restrictions to the scheduling work of the network device.

[0077] Another example is that when a certain slot, or some symbols on a certain slot, are dynamically changed from being able to perform uplink transmission to downlink transmission, it may cause a non-periodic SRS to be unable to be transmitted. For example, if slot n + k is changed to be used for downlink transmission, then the trigger SRS signaling sent on slot n is invalid, or the trigger signaling cannot be sent on slot n.

[0078] In some embodiments of the present application, if the network device sends an SRS trigger signaling on slot n, the terminal device can transmit the SRS on slot n + k or the first valid slot after that. By transmitting the SRS on slot n + k or the first valid slot after that, although the success rate of transmitting the SRS can be improved, the efficiency is not high, and it will also increase the configuration and scheduling complexity of the network device. The main reason is that the valid slot is not fixed and needs to be determined according to relevant configurations or factors (such as uplink and downlink slot configurations and / or indications).

[0079] Furthermore, embodiments of the present application provide a wireless communication method.

[0080] It should be noted that in the embodiments of the present application, the time slot that can be used or is available for transmitting the SRS is referred to as a valid slot.

[0081] Figure 2 Fig. 200 shows a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application. The method 200 can be executed by interaction between a terminal device and a network device. Figure 2 The terminal device shown in Figure 1 can be the terminal device shown in Figure 2 The network device shown in Figure 1 can be an access network device shown in

[0082] As shown in Figure 2 the method 200 may include:

[0083] S210, the terminal device receives first indication information sent by the network device, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) triggering signaling on a first cell is used to trigger SRS on at least one second cell.

[0084] For example, after receiving the first indication information and receiving the aperiodic SRS triggering signaling on the first cell, the terminal device may trigger the terminal device to send SRS on the at least one second cell.

[0085] It should be noted that the cell involved in the embodiment of the present application may be equivalent to a carrier. For example, a cell may be equivalent to a component carrier (CC) in a carrier aggregation (CA) scenario. In other words, the first indication information may be used to indicate that an aperiodic SRS triggering signaling on a first carrier is used to trigger SRS on at least one second carrier. In addition, the at least one second cell may be one cell, a group of cells, or multiple cells, and the present application does not make specific limitations thereto.

[0086] For example, if the at least one second cell is one second cell, equivalently, the first indication information is used to indicate that the aperiodic SRS triggering signaling on the first cell can be used to trigger SRS on another cell. Again, if the at least one second cell is a group of cells, equivalently, the first indication information can be used to indicate that the aperiodic SRS triggering signaling on the first cell can be used to trigger SRS on a group of cells. Again, if the at least one second cell is multiple cells, equivalently, the first indication information can be used to indicate that the SRS triggering command on the first cell can be used to trigger SRS on multiple cells. It should be understood that the group of cells or the multiple cells may or may not include the first cell, and the embodiment of the present application does not make specific limitations thereto.

[0087] Through the first indication information, the aperiodic SRS triggering signaling on the first cell can trigger the SRS transmission of the terminal device on at least one second cell. In other words, it can achieve the triggering transmission of aperiodic SRS across cells (or across carriers) in a multi-cell scenario.

[0088] In addition, it avoids triggering the SRS only through the aperiodic SRS triggering signaling received by each cell itself. This can not only improve the flexibility of the triggering signaling but also reduce the resource consumption of the aperiodic SRS triggering signaling (DCI).

[0089] In some embodiments of the present application, the first indication information is used to indicate the aperiodic SRS triggering signaling on the first cell or the first bandwidth part BWP of the first cell, and is used to trigger the SRS on the at least one second cell corresponding to the first cell or the first BWP.

[0090] In other words, the SRS on the at least one second cell corresponding to the first cell or the first BWP can be understood as: the first indication information is configured for the first cell or the first BWP, and the first indication information indicates the at least one second cell. Equivalently, for different cells, or for different BWPs of a cell, the cells that simultaneously activate the aperiodic SRS can be different. Thus, the flexibility of the configuration can be improved, and further the optimization performance of the network device can be enhanced.

[0091] In some embodiments of the present application, the first indication information is used to indicate a first triggering state, or the first triggering state in the aperiodic SRS triggering signaling on the first cell or the first bandwidth part BWP of the first cell, and is used to trigger the SRS on the at least one second cell corresponding to the first triggering state.

[0092] In other words, the first indication information is configured for the first triggering state, and the first indication information indicates the at least one second cell. Equivalently, two different triggering states may be able to trigger the aperiodic SRS transmissions on different cells. For example, triggering state 1 can trigger the aperiodic SRS transmissions on cell 0 and cell 1, and triggering state 2 can trigger the aperiodic SRS transmissions on cell 0, cell 1, and cell 2.

[0093] For example, the first indication information involved in the embodiments of the present application can be configured for the terminal device. In other words, the first indication information is configured for the triggering state of the terminal device. That is, the correspondence between the first triggering state indicated by the first indication information and the at least one second cell applies to each cell of the terminal device, or to each BWP of each cell of the terminal device.

[0094] For example, the first indication information involved in the embodiments of the present application may be configured for a target cell group of a terminal device. In other words, the first indication information is configured for the triggering state on a target cell group of the terminal device. That is, the correspondence between the first triggering state indicated by the first indication information and at least one second cell applies to each cell of the target cell group, or applies to each bandwidth part (BWP) of each cell of the target cell group.

[0095] It should be noted that the target cell group may refer to a cell group in dual connection (DC). For example, a master cell group (MCG), or a secondary cell group (SCG). And the cell group formed by at least one second cell or at least one third cell involved in the present application can be understood as a cell group formed by one or more cells that can be triggered by a non-periodic sounding reference signal (SRS) triggering signaling; for example, the first cell group, the second cell group, the cell group indicated by the first indication information, or the cell group indicated by the second information mentioned below.

[0096] Optionally, the first triggering state is a non-zero triggering state.

[0097] In some embodiments of the present application, the first indication information is carried by a first radio resource control (RRC) signaling, and the first RRC signaling is configured by any one of the following:

[0098] SRS configuration SRS-Config;

[0099] Serving cell configuration ServingCellConfig;

[0100] Special cell configuration SpCellConfig;

[0101] Secondary cell configuration SCellConfig;

[0102] Serving cell shared configuration ServingCellConfigCommon;

[0103] Uplink configuration UplinkConfig;

[0104] Bandwidth part uplink BWP-Uplink;

[0105] Bandwidth part shared uplink BWP-UplinkCommon; or

[0106] Bandwidth Part Dedicated Uplink BWP - UplinkDedicated

[0107] In some embodiments of the present application, the first indication information is used to indicate the aperiodic SRS triggering signaling on the first cell or the first cell of the cell group of the terminal device, for triggering SRS on the at least one second cell corresponding to the terminal device or the cell group.

[0108] In other words, the first indication information is configured for the terminal device or the cell group including the first cell, and the first indication information indicates the at least one second cell. Equivalently, for different cells, or different cells in the same cell group, the cells that simultaneously activate aperiodic SRS can be the same. Thus, the network device and the terminal device are simple to implement and process, and the implementation complexity can be reduced.

[0109] In some embodiments of the present application, the first indication information is carried by a second Radio Resource Control (RRC) signaling, and the second RRC signaling is configured by CellGroupConfig.

[0110] In some embodiments of the present application, the first indication information indicates the at least one second cell through an indication field in the RRC signaling, where the aperiodic SRS triggering signaling on the first cell is used to trigger SRS on the at least one second cell.

[0111] In other words, the first indication information indicates through an indication field in the RRC that the aperiodic SRS triggering signaling on the first cell is used to trigger SRS on at least one second cell.

[0112] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one second cell is all active cells of the terminal device to which it belongs, or the at least one second cell is all active cells of the cell group corresponding to the terminal device to which it belongs.

[0113] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell group. Optionally, the maximum number of cells in the first cell group is 2, 4, 8, or 32.

[0114] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell and the first cell group. Optionally, the maximum number of cells in the first cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

[0115] In some embodiments of the present application, if the indication field is not configured or is configured with a specific value, the at least one second cell is the first cell, that is, the aperiodic SRS trigger signaling on the same cell only triggers the aperiodic SRS transmission on this cell.

[0116] In some embodiments of the present application, the value corresponding to the indication field indicates the first cell group through a bitmap or a cell identifier.

[0117] It should be understood that the cell identifier may also be referred to as a cell code, and the present application does not make specific limitations thereto.

[0118] In some embodiments of the present application, the method 200 may further include:

[0119] Receiving a third RRC signaling for configuring at least one cell, where the at least one cell includes the first cell and the at least one second cell.

[0120] For example, the terminal device receives the third RRC signaling sent by the network device.

[0121] In other words, the network device sends the third RRC signaling to the terminal device to configure the at least one cell.

[0122] It should be noted that for SRS, transmission needs to be based on an SRS resource set (SRS-ResourceSet) or an SRS resource (SRS-Resource). In other words, the SRS sent by the terminal device may be the SRS corresponding to the SRS resource set or the SRS resource. The time slot offset of the SRS corresponding to the SRS resource set is configured for the SRS resource set, and the time slot offset of the SRS corresponding to the SRS resource is configured for the SRS resource. The SRS corresponding to the SRS resource set introduced above may also be referred to as a normal SRS. Optionally, the usage field in the SRS resource group may be configured as one of beam management, codebook, non-codebook, and antenna switching. The SRS corresponding to the SRS resource may also be an SRS for positioning, configured through the RRC signaling SRS-PosResource-r16, and the corresponding SRS resource set is configured through the RRC signaling SRS-PosResourceSet-r16. For the sake of simplicity in the following description, only the normal SRS is used as an example in some places, but the solution is equally applicable to the positioning SRS.

[0123] In some embodiments of the present application, the SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS resource set SRS-ResourceSet signaling, and the SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS resource SRS-Resource signaling.

[0124] It should be noted that the SRS resource sets involved in various embodiments of the present application are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

[0125] For example, the SRS resource set SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured by SRS configuration SRS-Config.

[0126] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured by the aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or the aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in the SRS resource set cell SRS-ResourceSet IE. The aperiodicSRS-ResourceTrigger is used to configure one trigger state among the multiple non-zero trigger states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one trigger state among the multiple non-zero trigger states.

[0127] For example, the value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1.

[0128] For example, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0129] In some embodiments of the present application, at least one time slot offset is configured for the SRS resource set of each second cell in the at least one second cell; the method 200 may further include:

[0130] Determine the second time slot based on the time slot offset k corresponding to the SRS resource set of a second cell in the first time slot and the at least one second cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling;

[0131] On the second time slot of the one second cell, transmit the SRS corresponding to the SRS resource set of the one second cell.

[0132] In some embodiments of the present application, each second cell in the at least one second cell is configured with multiple time slot offsets for its SRS resource set, and the time slot offset k corresponding to the SRS resource set of the one second cell is the activated time slot offset among the multiple time slot offsets.

[0133] For example, each second cell in the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k.

[0134] Again, the second time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0135] In some embodiments of the present application, the SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0136] It should be noted that the SRS resource sets involved in various embodiments of the present application are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

[0137] For example, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS through SRS-Config.

[0138] In some embodiments of the present application, for multiple triggering states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, configuration is performed through the aperiodic SRS resource trigger list r16 (aperiodicSRS-ResourceTriggerList-r16) in the SRS-PosResourceSet-r16.

[0139] For example, the value of each element in the aperiodicSRS-ResourceTriggerList is an integer from 1 to N-1; N represents the number of aperiodic SRS triggering states.

[0140] For example, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0141] In some embodiments of the present application, at least one time slot offset is configured for the SRS resources in the SRS resource set of each second cell among the at least one second cell; the method 200 may further include:

[0142] Determine a third time slot based on the first time slot and the time slot offset k' corresponding to the SRS resources in the SRS resource set of one second cell among the at least one second cell, where the first time slot is the time slot where the aperiodic SRS triggering signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to the first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0143] On the third time slot of the one second cell, transmit the SRS corresponding to the SRS resources in the SRS resource set of the one second cell.

[0144] In some embodiments of the present application, multiple time slot offsets are configured for the SRS resource set of each second cell among the at least one second cell, and the time slot offset k' corresponding to the SRS resources in the SRS resource set of the one second cell is the activated time slot offset among the multiple time slot offsets.

[0145] For example, each second cell among the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

[0146] Again, the third time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0147] It should be noted that the effective time slot can also be understood as a time slot available for uplink transmission. The time slot available for uplink transmission can be understood as a time slot only used for uplink transmission, that is, always used for uplink transmission, or can be understood as a time slot containing uplink symbols, or can be understood as a time slot containing flexible symbols, or can be understood as a flexible time slot, or can be understood as a time slot that is occasionally not available for uplink transmission. For example, a time slot occasionally used for downlink transmission. Optionally, whether the time slot available for uplink transmission in this application can actually be used for uplink transmission depends on whether there is a collision with other signal transmissions.

[0148] The technical solution of the method 200 will be described below in conjunction with specific embodiments. It should be noted that in subsequent embodiments, the steps are mainly for describing relatively related functional points. In actual implementation, some steps can be omitted, or the relative order of different steps can be changed, or the relative order of different sub-processes in different steps can be changed, which will not be limited here.

[0149] Embodiment 1:

[0150] In this embodiment, the first indication information is configured for the first cell or the first BWP.

[0151] Step 1:

[0152] The terminal device receives the cell configuration information sent by the network device through RRC signaling.

[0153] For example, carrier aggregation (CA) configuration information. There are A cells configured. For each of one or more (denoted as B, B <= A) of the A cells (in some cases, some cells may not be configured with corresponding aperiodic SRS, so it is written as one or more of A), the network device carries SRS configuration information through RRC signaling and configures one or more SRS resource groups, and each SRS resource group contains one or more SRS resources. The following description is for a certain cell among the B cells, and the configurations on different cells can be independent. The following takes cell Z as an example for description.

[0154] Optionally, the SRS resource group on cell Z is configured through the RRC signaling SRS-ResourceSet, and the SRS resource is configured through the RRC signaling SRS-Resource.

[0155] Optionally, the usage field in the SRS-ResourceSet signaling can be configured as one of beamManagement, codebook, nonCodebook, and antennaSwitching.

[0156] Optionally, the SRS resource set on cell Z is configured with multiple (denoted as M, M >= 1) trigger states. Optionally, each trigger state corresponds to a value in the SRS request field in the aperiodic SRS trigger signaling, that is, a code point. For example, the values of the trigger states in Table 1.

[0157] Optionally, the above multiple trigger states are configured through aperiodicSRS-ResourceTrigger and / or aperiodicSRS-ResourceTriggerList in the SRS-ResourceSet IE, where aperiodicSRS-ResourceTrigger configures 1 value, and aperiodicSRS-ResourceTriggerList configures 1 or more values.

[0158] Optionally, the value range of aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1.

[0159] Optionally, the value of each element in aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1.

[0160] For example, N can be equal to the number of aperiodic SRS trigger states (maxNrofSRS-TriggerStates), with a value of 4.

[0161] For another example, the value of N is determined to be 4 or a larger value (e.g., 8 or 16) according to the configuration information sent by the network device; of course, in other alternative embodiments, other naming can be used. By increasing the number of states corresponding to the aperiodic SRS trigger signaling, the flexibility of DCI triggering the aperiodic SRS can be improved, the system performance can be enhanced, so that cross-cell triggering of the aperiodic SRS can be achieved, the DCI overhead can be reduced, and the system flexibility can be increased. Optionally, the configuration information is indicated to the terminal device through RRC signaling or MAC CE signaling. Optionally, the terminal device notifies the network device through the terminal device capability reporting information that it can support more aperiodic SRS trigger states (Maximum number of SRS trigger states), that is, N is greater than 4, so that the network device determines N based on the capabilities reported by the terminal device.

[0162] Optionally, the RRC signaling is configured by SRS-Config.

[0163] Step 2:

[0164] For cell Z, or BWP Y of cell Z, the network device uses first indication information to indicate which cells' SRSs can be triggered by the aperiodic SRS trigger signaling transmitted on cell Z or BWP Y of cell Z.

[0165] Optionally, when the network device does not indicate relevant information through the above signaling, the aperiodic SRS trigger signaling transmitted on cell Z or BWP Y of cell Z only triggers the SRS transmitted on the corresponding uplink of cell Z. Equivalently, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0166] Option 1:

[0167] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then the aperiodic SRS trigger signaling transmitted on cell Z or BWP Y of cell Z triggers the corresponding aperiodic SRS transmission on all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. Equivalently, when the terminal device receives the aperiodic SRS trigger signaling on one cell, the same signaling can trigger the aperiodic SRS transmission on all cells.

[0168] Option 2:

[0169] The network device configures an indication field through RRC signaling. The indication field indicates a group of cells, and the group of cells includes one or more cells. The aperiodic SRS trigger signaling transmitted on cell Z or BWP Y of cell Z triggers the corresponding aperiodic SRS transmission on all active cells in the group of cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it is possible to more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance.

[0170] Optionally, for the above indication field, a group of cells is indicated by a bitmap. For example, if the corresponding bit is a specified value (such as 1), then the cell corresponding to this bit belongs to the group of cells. When the number of cells in the group is large, using a bitmap can reduce signaling overhead.

[0171] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0172] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set of cells is small, signaling overhead can be reduced.

[0173] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0174] Option 3:

[0175] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. The aperiodic SRS triggering signaling sent on cell Z or the BWP Y of cell Z triggers the terminal device to perform corresponding aperiodic SRS transmissions on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRSs are configured for the corresponding active cells. In addition, it triggers the aperiodic SRS transmission corresponding to cell Z or the BWP Y of cell Z. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS triggering signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, only when the set of cells indicated by the indication field includes cell Z, the aperiodic SRS triggering signaling on cell Z can trigger the aperiodic SRS transmission on cell Z; based on Option 2, Option 3 can trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0176] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set of cells is large, signaling overhead can be reduced through the bitmap.

[0177] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0178] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0179] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set of cells is small, signaling overhead can be reduced.

[0180] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0181] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0182] Optionally, the RRC signaling can be configured in any of the following ways:

[0183] The RRC signaling is configured by SRS-Config;

[0184] The RRC signaling is configured by ServingCellConfig;

[0185] The RRC signaling is configured by SpCellConfig;

[0186] The RRC signaling is configured by SCellConfig;

[0187] The RRC signaling is configured by ServingCellConfigCommon;

[0188] The RRC signaling is configured by UplinkConfig;

[0189] The RRC signaling is configured by BWP-Uplink;

[0190] The RRC signaling is configured by BWP-UplinkCommon; or

[0191] The RRC signaling is configured by BWP-UplinkDedicated.

[0192] Step 3:

[0193] The terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z or BWP Y of cell Z, and the trigger state corresponding to the first signaling is greater than 0 (its value is denoted as value, simply referred to as the first value), that is, a non-zero trigger state, then an aperiodic SRS corresponding thereto is sent on the aforementioned determined cell.

[0194] For each of the aforementioned determined cells (denoted as Z'), an aperiodic SRS corresponding to the SRS resource group with the value of the first signaling value is sent. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the value of the first signaling on each Z'. The corresponding SRS resource group is configured with 1 slot offset or multiple slot offsets.

[0195] Optionally, the terminal device receives an aperiodic SRS triggering signaling (such as DCI) on slot n of cell Z. The terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z' according to the slot offset corresponding to the SRS resource group where the SRS resource is located.

[0196] Optionally, according to the slot offset k corresponding to the SRS resource group (when there is 1 slot offset configured for the SRS resource group, or when 1 slot offset is activated), or the slot offset k corresponding to the SRS resource group activated by the MAC signaling (when there are 1 or more slot offsets configured for the SRS resource group), or the slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS triggering signaling (when there are multiple slot offsets configured for the SRS resource group), the transmission slot of the SRS is determined, that is, slot n'.

[0197] For example, the following formula can be used to determine slot n':

[0198]

[0199] where the u SRS represents the subcarrier spacing configuration corresponding to the SRS, and the u PDCCH represents the subcarrier spacing configuration corresponding to the physical downlink control channel PDCCH used by the triggering signaling. The k represents the slot offset corresponding to the SRS resource group, and the n represents the first slot.

[0200] Again, for example, slot n' can be determined based on the following formula:

[0201]

[0202] where the u SRS represents the subcarrier spacing configuration corresponding to the SRS, and the u PDCCH represents the subcarrier spacing configuration corresponding to the physical downlink control channel PDCCH used by the triggering signaling. The and the u offset，PDCCH are respectively the and u offset for the slot offset of the carrier aggregation CA for receiving the physical downlink control channel PDCCH depending on the upper layer configuration. The and the u offset，SRS are respectively the and u offset for the slot offset of the carrier aggregation CA for transmitting the SRS depending on the upper layer configuration. The k represents the slot offset corresponding to the SRS resource group, and the n represents the first slot. In addition, and uoffset It can be the relevant parameters for the slot offset for CA specified in the communication standard.

[0203] Optionally, according to the slot offset k corresponding to the SRS resource set (in the case where 1 slot offset is configured for the SRS resource set, or when 1 slot offset is activated), or the slot offset k corresponding to the SRS resource set activated by the MAC signaling (in the case where 1 or more slot offsets are configured for the SRS resource set), or the slot offset k corresponding to the SRS resource set indicated by the aperiodic SRS trigger signaling (in the case where multiple slot offsets are configured for the SRS resource set), the k-th or (k + 1)-th valid slot on cell Z' after the slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, reducing the probability of congestion in response to the aperiodic SRS trigger signaling. Optionally, the valid slot is a slot that can transmit the SRS.

[0204] The preset value in Option 1 is exemplarily described below.

[0205] For example, an example of the indication field in an RRC signaling for Option 1 can be set in the following manner. Of course, the naming and position are only examples of the present application, and the present application does not make specific limitations thereto.

[0206] For example, assume that the preset value of the indication field can be set to {FALSE, TRUE}; if the indication field is configured and the value of the indication field is FALSE, the original triggering method is used, that is, the corresponding aperiodic SRS is only triggered on cell Z corresponding to the aperiodic SRS trigger signaling; if the value of the indication field is TRUE, the triggering method provided by the present application is used.

[0207] For another example, assume that the preset value of the indication field can be set to {TRUE}; if the indication field is not configured, the original triggering method is used, that is, the corresponding aperiodic SRS is only triggered on cell Z corresponding to the aperiodic SRS trigger signaling; if the indication field is configured, the triggering method provided by the present application is used.

[0208] For another example, assume that the preset value of the indication field can be set to {FALSE}; if the indication field is configured, the original triggering method is used, that is, the corresponding aperiodic SRS is only triggered on cell Z corresponding to the aperiodic SRS trigger signaling; if the indication field is not configured, the triggering method provided by the present application is used.

[0209] For another example, assume that the preset value of the indication field can be set to {Enable, Disable}; if the indication field is configured and the value of the indication field is Disable, use the original triggering method, that is, trigger the corresponding aperiodic SRS only on the cell Z corresponding to the aperiodic SRS triggering signaling; if the value of the indication field is Enable, use the triggering method provided by this application.

[0210] For another example, assume that the preset value of the indication field can be set to {Enable}; if the indication field is not configured, use the original triggering method, that is, trigger the corresponding aperiodic SRS only on the cell Z corresponding to the aperiodic SRS triggering signaling; if the indication field is configured, use the triggering method provided by this application.

[0211] For another example, assume that the preset value of the indication field can be set to {Disable}; if the indication field is configured, use the original triggering method, that is, trigger the corresponding aperiodic SRS only on the cell Z corresponding to the aperiodic SRS triggering signaling; if the indication field is not configured, use the triggering method provided by this application.

[0212] The following gives an exemplary description of the RRC signaling for configuration.

[0213] For an example of an RRC signaling for Option 1, the indication field can be a field for carrying the preset value. For example, it can be configured through SRS-Config or ServingCellConfig. Of course, the naming and position are only examples of this application, and this application does not make specific limitations thereto.

[0214] For an example of an RRC signaling for Option 2 and Option 3, it can be configured through the value in the format of "BIT STRING(SIZE(T))", where T in SIZE(T) is a positive integer indicating how many bits in total. For example, it can be configured through SRS-Config, UplinkConfig or ServingCellConfig. Of course, the naming and position are only examples of this application, and this application does not make specific limitations thereto.

[0215] It should be noted that SRS-Config, UplinkConfig, and ServingCellConfig are only examples of the configurations for configuring RRC signaling in this application and should not be construed as a limitation of this application. For example, in other alternative embodiments, the RRC signaling can also be configured through other parameters.

[0216] For example, BWP-Uplink, BWP-UplinkCommon, BWP-UplinkDedicated, ServingCellConfigCommon, SpCellConfig, or SCellConfig.

[0217] Embodiment 2:

[0218] In this embodiment, the first indication information is configured for the aperiodic SRS trigger state.

[0219] Step 1:

[0220] The terminal device receives the cell configuration information sent by the network device through RRC signaling.

[0221] It should be understood that Step 1 in Embodiment 2 can refer to Step 1 in Embodiment 1. To avoid repetition, it will not be elaborated here.

[0222] Step 2:

[0223] For cell Z, or BWP Y of cell Z, the network device indicates through the first indication information that the aperiodic SRS trigger state S on cell Z or BWP Y of cell Z can trigger SRS on one or more cells. When the aperiodic SRS trigger signaling on cell Z or BWP Y of cell Z corresponds to the aperiodic SRS trigger state S, the SRS on the one or more cells is triggered.

[0224] Optionally, the above aperiodic SRS trigger state S is a non-zero state.

[0225] Optionally, different corresponding cells can be configured for different aperiodic SRS trigger states.

[0226] Optionally, when the network device does not indicate relevant information through the above signaling, the trigger state S corresponding to the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the uplink corresponding to cell Z. That is, when the terminal device does not receive the first indication information, the original trigger method is adopted.

[0227] Option 1:

[0228] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then for the aperiodic SRS trigger signaling sent on cell Z, if this non-zero aperiodic trigger signaling corresponds to the trigger state S, it triggers the corresponding aperiodic SRS transmission on all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. Equivalently, when the terminal device receives the aperiodic SRS trigger signaling on one cell, the same signaling can trigger the aperiodic SRS transmission on all cells.

[0229] Option 2:

[0230] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. The indication field indicates a set of cells. The set of cells includes one or more cells. For the aperiodic SRS trigger signaling sent on cell Z, if this non-zero aperiodic trigger signaling corresponds to the trigger state S, it triggers the corresponding aperiodic SRS transmission on all active cells in the set of cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance.

[0231] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), then the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set of cells is relatively large, using a bitmap can reduce the signaling overhead.

[0232] Optionally, the indication field can indicate at most 32, or 8, or 4, or 2 cells.

[0233] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field includes the identifiers of each cell in the set of cells. When the number of cells in the set of cells is relatively small, it can reduce the signaling overhead.

[0234] Optionally, the indication field can indicate at most 32, or 8, or 4, or 2 cells.

[0235] Option 3:

[0236] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. For the aperiodic SRS trigger signaling sent by the network device on cell Z, if this non-zero aperiodic trigger signaling corresponds to the trigger state S, it triggers the aperiodic SRS transmission corresponding to all active cells in the set of cells on the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cell. In addition, it triggers the aperiodic SRS transmission corresponding to cell Z or the BWP Y of cell Z. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, only when the set of cells indicated by the indication field includes cell Z, the aperiodic SRS trigger signaling on cell Z can trigger the aperiodic SRS transmission on cell Z; on the basis of Option 2, Option 3 can trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0237] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set of cells is large, using a bitmap can reduce signaling overhead.

[0238] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0239] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0240] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field includes the identifiers of each cell in the set of cells. When the number of cells in the set of cells is small, it can reduce signaling overhead.

[0241] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0242] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0243] Optionally, the RRC signaling can be configured in any of the following ways:

[0244] The RRC signaling is configured through SRS-Config;

[0245] The RRC signaling is configured by ServingCellConfig;

[0246] The RRC signaling is configured by SpCellConfig;

[0247] The RRC signaling is configured by SCellConfig;

[0248] The RRC signaling is configured by ServingCellConfigCommon;

[0249] The RRC signaling is configured by UplinkConfig;

[0250] The RRC signaling is configured by BWP-Uplink;

[0251] The RRC signaling is configured by BWP-UplinkCommon;

[0252] The RRC signaling is configured by BWP-UplinkDedicated.

[0253] Step 3:

[0254] The terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z, and the trigger state S corresponding to the first signaling is greater than 0 (the value is denoted as value, simply referred to as the first value), that is, a non-zero trigger state. Then, the corresponding aperiodic SRS is sent on the aforementioned determined cell.

[0255] For the trigger state S corresponding to the first signaling, determine that on each cell (denoted as Z') in the above corresponding cells, send the aperiodic SRS corresponding to the SRS resource group with the first signaling value value. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the first signaling value value on each Z'. The corresponding SRS resource group is configured with 1 slot offset or multiple slot offsets.

[0256] Optionally, the terminal device receives an aperiodic SRS trigger signaling (such as DCI) on slot n of cell Z, and the terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z' according to the slot offset corresponding to the SRS resource group where the SRS resource is located.

[0257] Optionally, according to the time slot offset offset corresponding to the SRS resource group (the value is represented by k, this method corresponds to configuring 1 time slot offset for the SRS resource group, or activating a time slot offset), or the time slot offset k corresponding to the SRS resource group activated by the MAC signaling (in the case where the SRS resource group is configured with 1 or more time slot offsets), or the time slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS trigger signaling (in the case where the SRS resource group is configured with multiple time slot offsets), the transmission slot of the SRS is determined, that is, slot n'.

[0258] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0259] Optionally, according to the time slot offset k corresponding to the SRS resource group (in the case where the SRS resource group is configured with 1 time slot offset, or in the case where a time slot offset is activated), or the time slot offset k corresponding to the SRS resource group activated by the MAC signaling (in the case where the SRS resource group is configured with 1 or more time slot offsets), or the time slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS trigger signaling (in the case where the SRS resource group is configured with multiple time slot offsets), the k-th or (k + 1)-th valid time slot on cell Z' after the time slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, and the probability of congestion in response to the aperiodic SRS trigger signaling can be reduced. Optionally, the valid time slot is a time slot that can transmit the SRS.

[0260] Embodiment 3:

[0261] In this embodiment, the first indication information is configured for the terminal device or the cell group including the first cell, that is, the target cell group described above.

[0262] Step 1:

[0263] The terminal device receives the cell configuration information sent by the network device through the RRC signaling.

[0264] It should be understood that Step 1 in Embodiment 3 can refer to Step 1 in Embodiment 1. To avoid repetition, it will not be elaborated here.

[0265] Step 2:

[0266] For a terminal device or for a target cell group, the network device uses first indication information to indicate on which cells of the terminal device the aperiodic SRS trigger signaling can trigger SRS, or on which cells corresponding to the target cell group the aperiodic SRS trigger signaling can trigger SRS. In Embodiment 1, signaling is used to indicate on which cells the aperiodic SRS trigger signaling sent on cell Z can trigger aperiodic SRS transmission. Compared with Embodiment 1, the network device and the terminal device are simple to implement and process, reducing the implementation complexity.

[0267] Optionally, when the network device does not indicate the relevant information through the above signaling, the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the uplink corresponding to cell Z. Equivalently, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0268] Option 1:

[0269] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then the aperiodic SRS trigger signaling sent on terminal device cell Z, or on any cell Z in the cell group, triggers aperiodic SRS transmission on all currently active cells of the terminal device. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. Equivalently, when the terminal device receives the aperiodic SRS trigger signaling on one cell, the same signaling can trigger aperiodic SRS transmission on all cells.

[0270] Option 2:

[0271] The network device configures an indication field through RRC signaling, and the indication field indicates a group of cells, where the group of cells includes one or more cells. Then, the aperiodic SRS trigger signaling sent on terminal device cell Z, or on any cell Z in the cell group, triggers aperiodic SRS transmission on all active cells in the group of cells. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it is possible to more flexibly control on which cells the aperiodic SRS trigger signaling can trigger aperiodic SRS transmission, rather than triggering aperiodic SRS transmission on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance.

[0272] Optionally, the above indication field indicates a group of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), then the cell corresponding to this bit belongs to the group of cells. When the number of cells in the group is large, using a bitmap can reduce the signaling overhead.

[0273] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0274] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0275] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0276] Option 3:

[0277] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells contains one or more cells. Then, on the terminal device cell Z or any cell Z in the cell group, the aperiodic SRS trigger signaling sent triggers the terminal device to perform corresponding aperiodic SRS transmissions on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRSs are configured for the corresponding active cells. In addition, the aperiodic SRS transmission corresponding to cell Z is triggered. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, only when the set of cells indicated by the indication field includes cell Z, the aperiodic SRS trigger signaling on cell Z can trigger the aperiodic SRS transmission on cell Z; based on Option 2, Option 3 can trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0278] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, signaling overhead can be reduced through the bitmap.

[0279] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0280] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0281] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0282] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0283] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0284] Optionally, the RRC signaling can be configured by CellGroupConfig.

[0285] Step 3:

[0286] If the terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z, and the value corresponding to the first signaling is greater than 0 (the value is denoted as value), then the corresponding aperiodic SRS is transmitted on the previously determined cells.

[0287] For each of the above determined cells (denoted as Z'), the aperiodic SRS corresponding to the SRS resource group with the value value of the first signaling is transmitted. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the value value of the first signaling on each Z'. The corresponding SRS resource group is configured with 1 slot offset or multiple slot offsets.

[0288] Optionally, if the terminal device receives an aperiodic SRS trigger signaling (such as DCI) on slot n of cell Z, the terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z according to the slot offset corresponding to the SRS resource group where the SRS resource is located.

[0289] Optionally, according to the slot offset k corresponding to the SRS resource group (in the case where 1 slot offset is configured in the SRS resource group, or when 1 slot offset is activated), or the slot offset k corresponding to the SRS resource group activated by the MAC signaling (in the case where 1 or more slot offsets are configured in the SRS resource group), or the slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS trigger signaling (in the case where multiple slot offsets are configured in the SRS resource group), the transmission slot of the SRS is determined, that is, slot n'.

[0290] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0291] Optionally, according to the slot offset k corresponding to the SRS resource set (in the case where 1 slot offset is configured for the SRS resource set, or when 1 slot offset is activated), or the slot offset k corresponding to the SRS resource set activated by MAC signaling (in the case where 1 or more slot offsets are configured for the SRS resource set), or the slot offset k corresponding to the SRS resource set indicated by the aperiodic SRS trigger signaling (in the case where multiple slot offsets are configured for the SRS resource set), the k-th or (k + 1)-th valid slot on cell Z' after the slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, reducing the probability of congestion in response to the aperiodic SRS trigger signaling. Optionally, the valid slot is a slot that can transmit the SRS.

[0292] The solution of using the first indication information to trigger the SRS corresponding to the SRS resource set is described above in conjunction with Embodiments 1 to 3. Below, the use of the first indication information to trigger the SRS corresponding to the SRS resource is described in conjunction with Embodiments 4 to 6.

[0293] Embodiment 4:

[0294] In this embodiment, the first indication information is configured for the first cell or the first BWP.

[0295] Step 1:

[0296] The terminal device receives the cell configuration information sent by the network device through RRC signaling.

[0297] For example, carrier aggregation (CA) configuration information. There are A cells configured. For each of 1 or more (denoted as B, B <= A) of the A cells (in some cases, some cells may not be configured with corresponding aperiodic SRS, so it is written as 1 or more of A), the network device carries SRS configuration information through RRC signaling, configures 1 or more SRS resource sets, and each SRS resource set contains 1 or more SRS resources. The following description is for a certain cell among the B cells, and the configurations on different cells can be independent. The following describes taking cell Z as an example.

[0298] Optionally, the SRS resource set is configured through the RRC signaling SRS-PosResourceSet-r16, and the SRS resource is configured through the RRC signaling SRS-PosResource-r16.

[0299] Optionally, multiple (denoted as M, M >= 1) trigger states are configured for at least one of the SRS resource sets (denoted as Set X). Optionally, each trigger state corresponds to a value in the SRS request field of the aperiodic SRS trigger signaling, that is, a code point. For example, the values of the trigger states in Table 1.

[0300] Optionally, the multiple trigger states are configured through aperiodicSRS-ResourceTriggerList-r16 in SRS-PosResourceSet-r16.

[0301] Optionally, the value of each element in aperiodicSRS-ResourceTriggerList-r16 is an integer from 1 to N - 1.

[0302] For example, N can be equal to the number of aperiodic SRS trigger states (maxNrofSRS-TriggerStates), with a value of 4.

[0303] Again, according to the configuration information sent by the network device, the value of N is determined to be 4 or a larger value (for example, 8 or 16); of course, in other alternative embodiments, other names can be used. By increasing the number of states corresponding to the aperiodic SRS trigger signaling, the flexibility of DCI triggering aperiodic SRS can be improved, the system performance can be enhanced, thereby enabling cross-cell triggering of aperiodic SRS, reducing DCI overhead, and increasing system flexibility.

[0304] Optionally, the configuration information is indicated to the terminal device through RRC signaling or MAC CE signaling.

[0305] Optionally, the terminal device notifies the network device through the terminal device capability reporting information that it can support more aperiodic SRS trigger states (Maximum number of SRS trigger states), that is, N is greater than 4, so that the network device determines N based on the capabilities reported by the terminal device.

[0306] Optionally, the RRC signaling is configured through SRS-Config

[0307] Step 2:

[0308] For cell Z, or BWP Y of cell Z, the network device indicates through the first indication information which cells' SRS can be triggered by the aperiodic SRS trigger signaling transmitted on cell Z or BWP Y of cell Z.

[0309] Optionally, when the network device does not indicate relevant information through the above signaling, the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the uplink corresponding to cell Z. That is, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0310] Option 1:

[0311] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, the aperiodic SRS trigger signaling sent on cell Z triggers the aperiodic SRS transmission corresponding to all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. That is, when the terminal device receives the aperiodic SRS trigger signaling on one cell, the same signaling can trigger the aperiodic SRS transmission on all cells.

[0312] Option 2:

[0313] The network device configures an indication field through RRC signaling. The indication field indicates a group of cells, and the group of cells includes one or more cells. The aperiodic SRS trigger signaling sent on cell Z triggers the aperiodic SRS transmission corresponding to all active cells in the group of cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance.

[0314] Optionally, the above indication field indicates a group of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the group of cells. When the number of cells in the group is large, using a bitmap can reduce the signaling overhead.

[0315] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0316] Optionally, the above indication field indicates a group of cells through cell identifiers, that is, the indication field includes the identifiers of each cell in the group of cells. When the number of cells in the group is small, it can reduce the signaling overhead.

[0317] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0318] Option 3:

[0319] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells. The set of cells includes one or more cells. The aperiodic SRS triggering signaling sent on cell Z triggers the terminal device to perform corresponding aperiodic SRS transmissions on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRSs are configured for the corresponding active cells. In addition, the aperiodic SRS transmission corresponding to cell Z is triggered. Compared with Option 1, it is possible to more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS triggering signaling, rather than triggering aperiodic SRS transmissions on all active cells. This can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, the aperiodic SRS triggering signaling on cell Z can trigger the aperiodic SRS transmission on cell Z only when the set of cells indicated by the indication field includes cell Z; based on Option 2, Option 3 enables the aperiodic SRS triggering signaling on cell Z to trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0320] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, using a bitmap can reduce signaling overhead.

[0321] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0322] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0323] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, it can reduce signaling overhead.

[0324] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0325] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0326] Optionally, the RRC signaling can be configured in any of the following ways:

[0327] The RRC signaling is configured through SRS-Config;

[0328] The RRC signaling is configured by ServingCellConfig;

[0329] The RRC signaling is configured by SpCellConfig;

[0330] The RRC signaling is configured by SCellConfig;

[0331] The RRC signaling is configured by ServingCellConfigCommon;

[0332] The RRC signaling is configured by UplinkConfig;

[0333] The RRC signaling is configured by BWP-Uplink;

[0334] The RRC signaling is configured by BWP-UplinkCommon; or

[0335] The RRC signaling is configured by BWP-UplinkDedicated.

[0336] Step 3:

[0337] The terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z, and the trigger state corresponding to the first signaling is greater than 0 (its value is denoted as value, simply referred to as the first value), that is, a non-zero trigger state. Then, the corresponding aperiodic SRS is sent on the previously determined cell.

[0338] For each of the above-determined cells (denoted as Z'), the aperiodic SRS corresponding to the SRS resource group with the value of the first signaling value is sent. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the value of the first signaling value on each Z'. The corresponding SRS resource is configured with 1 slot offset or multiple slot offsets

[0339] Optionally, the terminal device receives an aperiodic SRS trigger signaling (such as DCI) on slot n of cell Z, and the terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z' according to the slot offset corresponding to the SRS resource.

[0340] Optionally, according to the time slot offset k corresponding to the SRS resource (when one time slot offset is configured for the SRS resource, or when one time slot offset is activated), or the time slot offset k corresponding to the SRS resource activated by MAC signaling (when one or more time slot offsets are configured for the SRS resource), or the time slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (when multiple time slot offsets are configured for the SRS resource), the transmission slot of the SRS, that is, slot n', is determined.

[0341] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0342] Optionally, according to the time slot offset k corresponding to the SRS resource (when one time slot offset is configured for the SRS resource, or when one time slot offset is activated), or the time slot offset k corresponding to the SRS resource activated by MAC signaling (when one or more time slot offsets are configured for the SRS resource), or the time slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (when multiple time slot offsets are configured for the SRS resource), the kth or (k + 1)th valid time slot on cell Z' after the time slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, reducing the congestion probability of responding to the aperiodic SRS trigger signaling. Optionally, the valid time slot is a time slot on which the SRS can be transmitted.

[0343] Embodiment 5:

[0344] In this embodiment, the first indication information is configured for the aperiodic SRS trigger state.

[0345] Step 1:

[0346] The terminal device receives the cell configuration information sent by the network device through RRC signaling.

[0347] It should be understood that Step 1 in Embodiment 5 can refer to Step 1 in Embodiment 3. To avoid repetition, it will not be elaborated here.

[0348] Step 2:

[0349] For cell Z, or BWP Y of cell Z, the network device indicates through the first indication information that the aperiodic SRS trigger state S on cell Z or BWP Y of cell Z can trigger the SRS on one or more cells. When the aperiodic SRS trigger signaling on cell Z or BWP Y of cell Z corresponds to the aperiodic SRS trigger state S, the SRS on the one or more cells is triggered.

[0350] Optionally, the above aperiodic SRS trigger state S is a non-zero state.

[0351] Optionally, different corresponding cells may be configured for different aperiodic SRS trigger states S.

[0352] Optionally, when the network device does not indicate relevant information through the above signaling, the trigger state S corresponding to the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the corresponding uplink of cell Z. That is, when the terminal device does not receive the first indication information, the original trigger method is adopted.

[0353] Option 1:

[0354] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then for the aperiodic SRS trigger signaling sent on cell Z, if this non-zero aperiodic trigger signaling corresponds to a trigger state of S, it triggers the corresponding aperiodic SRS transmission on all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. That is, when the terminal device receives an aperiodic SRS trigger signaling on a cell, the same signaling can trigger the aperiodic SRS transmission on all cells.

[0355] Option 2:

[0356] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. For the aperiodic SRS trigger signaling sent on cell Z, if this non-zero aperiodic trigger signaling corresponds to a trigger state of S, it triggers the corresponding aperiodic SRS transmission on all active cells in the set of cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering the aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve the system performance.

[0357] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), then the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set of cells is large, the signaling overhead can be reduced through the bitmap.

[0358] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0359] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0360] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0361] Option 3:

[0362] For a non-zero aperiodic SRS trigger state S, the network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells contains one or more cells. For the aperiodic SRS trigger signaling sent on cell Z, if this non-zero aperiodic trigger signaling corresponds to the trigger state S, it triggers the terminal device to perform corresponding aperiodic SRS transmissions on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRSs are configured for the corresponding active cells. In addition, it triggers the aperiodic SRS transmission corresponding to cell Z. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, only when the set of cells indicated by the indication field includes cell Z, the aperiodic SRS trigger signaling on cell Z can trigger the aperiodic SRS transmission on cell Z; based on Option 2, Option 3 can trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0363] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, signaling overhead can be reduced through the bitmap.

[0364] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0365] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0366] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0367] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0368] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0369] Optionally, the RRC signaling can be configured in any of the following ways:

[0370] The RRC signaling is configured by SRS-Config;

[0371] The RRC signaling is configured by ServingCellConfig;

[0372] The RRC signaling is configured by SpCellConfig;

[0373] The RRC signaling is configured by SCellConfig;

[0374] The RRC signaling is configured by ServingCellConfigCommon;

[0375] The RRC signaling is configured by UplinkConfig;

[0376] The RRC signaling is configured by BWP-Uplink;

[0377] The RRC signaling is configured by BWP-UplinkCommon; or

[0378] The RRC signaling is configured by BWP-UplinkDedicated.

[0379] Step 3:

[0380] The terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z, and the trigger state S corresponding to the first signaling is greater than 0 (its value is denoted as value, simply referred to as the first value), that is, a non-zero trigger state. Then, the corresponding aperiodic SRS is sent on the previously determined cell.

[0381] For the trigger state S corresponding to the first signaling, on each of the above corresponding cells (denoted as Z'), an aperiodic SRS corresponding to the SRS resource group with the first signaling value value is sent. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the first signaling value value on each Z'. The corresponding SRS resource is configured with 1 slot offset or multiple slot offsets

[0382] Optionally, the terminal device receives an aperiodic SRS trigger signaling (e.g., DCI) on slot n of cell Z, and the terminal device transmits the SRS resource on slot n' corresponding to cell Z' according to the slot offset corresponding to the SRS resource.

[0383] Optionally, according to the slot offset k corresponding to the SRS resource (when 1 slot offset is configured for the SRS resource, or when one slot offset is activated), or the slot offset k corresponding to the SRS resource activated by the MAC signaling (when 1 or more slot offsets are configured for the SRS resource), or the slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (when multiple slot offsets are configured for the SRS resource), the transmission slot of the SRS is determined, that is, slot n'.

[0384] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0385] Optionally, according to the slot offset k corresponding to the SRS resource (when 1 slot offset is configured for the SRS resource, or when one slot offset is activated), or the slot offset k corresponding to the SRS resource activated by the MAC signaling (when 1 or more slot offsets are configured for the SRS resource), or the slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (when multiple slot offsets are configured for the SRS resource), the kth or (k + 1)th valid slot on cell Z' after the slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, and the congestion probability of responding to the aperiodic SRS trigger signaling can be reduced. Optionally, the valid slot is a slot on which the SRS can be transmitted.

[0386] Embodiment 6:

[0387] In this embodiment, the first indication information is configured for the terminal device or the cell group including the first cell, that is, the target cell group described above.

[0388] Step 1:

[0389] It should be understood that Step 1 in Embodiment 5 can refer to Step 1 in Embodiment 3. To avoid repetition, it will not be elaborated here.

[0390] Step 2:

[0391] For a terminal device or for a target cell group, a network device uses first indication information to indicate on which cells of the terminal device the aperiodic SRS trigger signaling can trigger SRS, or on which cells corresponding to the target cell group the aperiodic SRS trigger signaling can trigger SRS. In Embodiment 1, signaling is used to indicate on which cells the aperiodic SRS trigger signaling sent on cell Z can trigger aperiodic SRS transmission. Compared with Embodiment 1, the network device and the terminal device are simple to implement and process, reducing the implementation complexity.

[0392] Optionally, when the network device does not indicate relevant information through the above signaling, the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the uplink corresponding to cell Z. Equivalently, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0393] Option 1:

[0394] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain value specified in advance, then the aperiodic SRS trigger signaling sent on terminal device cell Z or on any cell Z in the cell group triggers aperiodic SRS transmission on all currently active cells of the terminal device. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cells. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. Equivalently, when the terminal device receives the aperiodic SRS trigger signaling on one cell, the same signaling can trigger aperiodic SRS transmission on all cells.

[0395] Option 2:

[0396] The network device configures an indication field through RRC signaling, and the indication field indicates a group of cells, where the group of cells includes one or more cells. Then, the aperiodic SRS trigger signaling sent on terminal device cell Z or on any cell Z in the cell group triggers aperiodic SRS transmission on all active cells in the group of cells for the terminal device. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cells. Compared with Option 1, it is possible to more flexibly control on which cells the aperiodic SRS trigger signaling can trigger aperiodic SRS transmission, rather than triggering aperiodic SRS transmission on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance.

[0397] Optionally, the above indication field uses a bitmap to indicate a group of cells. For example, if the corresponding bit is a specified value (such as 1), then the cell corresponding to this bit belongs to the group of cells. When the number of cells in the group is large, using a bitmap can reduce signaling overhead.

[0398] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0399] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0400] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0401] Option 3:

[0402] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. Then, on terminal device cell Z or any cell Z in the cell group, the aperiodic SRS trigger signaling sent triggers the terminal device to perform corresponding aperiodic SRS transmissions on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRSs are configured for the corresponding active cells. In addition, the aperiodic SRS transmission corresponding to cell Z is triggered. Compared with Option 1, it can more flexibly control which cells' aperiodic SRS transmissions can be triggered by an aperiodic SRS trigger signaling, rather than triggering aperiodic SRS transmissions on all active cells, which can not only improve the flexibility of the network device to trigger SRS, but also improve system performance. Compared with Option 2, for Option 2, only when the set of cells indicated by the indication field includes cell Z, the aperiodic SRS trigger signaling on cell Z can trigger the aperiodic SRS transmission on cell Z; based on Option 2, Option 3 can trigger the aperiodic SRS transmission on cell Z regardless of whether the set of cells indicated by the indication field includes cell Z; equivalently, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0403] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, signaling overhead can be reduced through the bitmap.

[0404] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0405] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0406] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0407] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0408] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0409] Optionally, the RRC signaling can be configured by CellGroupConfig.

[0410] Step 3:

[0411] If the terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) on cell Z, and the value corresponding to the first signaling is greater than 0 (the value is denoted as value), then the corresponding aperiodic SRS is transmitted on the previously determined cells.

[0412] For each of the above determined cells (denoted as Z'), the aperiodic SRS corresponding to the SRS resource group with the value value of the first signaling is transmitted. Since the trigger state is configured in the aperiodic SRS resource group on Z', there will be an aperiodic SRS resource group corresponding to the value value of the first signaling on each Z'. The corresponding SRS resource is configured with 1 slot offset or multiple slot offsets

[0413] Optionally, if the terminal device receives an aperiodic SRS trigger signaling (such as DCI) on slot n of cell Z, the terminal device determines the slot n' corresponding to cell Z' for transmitting the SRS resource according to the slot offset corresponding to the SRS resource.

[0414] Optionally, according to the slot offset k corresponding to the SRS resource (in the case where the SRS resource is configured with 1 slot offset, or when 1 slot offset is activated), or the slot offset k corresponding to the SRS resource activated by the MAC signaling (in the case where the SRS resource is configured with 1 or multiple slot offsets), or the slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (in the case where the SRS resource is configured with multiple slot offsets), the transmission slot of the SRS, that is, slot n', is determined.

[0415] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0416] Optionally, according to the time slot offset k corresponding to the SRS resource (in the case where 1 time slot offset is configured for the SRS resource, or when 1 time slot offset is activated), or the time slot offset k corresponding to the SRS resource activated by MAC signaling (in the case where 1 or more time slot offsets are configured for the SRS resource), or the time slot offset k corresponding to the SRS resource indicated by the aperiodic SRS trigger signaling (in the case where multiple time slot offsets are configured for the SRS resource), the k-th or (k + 1)-th valid time slot on cell Z' after the time slot in which the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, reducing the probability of congestion in response to the aperiodic SRS trigger signaling. Optionally, the valid time slot is a time slot capable of transmitting the SRS.

[0417] Figure 3 FIG. 4 shows a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application. The method 300 can be executed by interaction between a terminal device and a network device. Figure 3 The terminal device shown in FIG. 4 can be, for example, Figure 1 the terminal device shown in FIG. 4, Figure 3 The network device shown in FIG. 4 can be, for example, Figure 1 the access network device shown in FIG. 4.

[0418] For example, Figure 3 as shown in FIG. 4, the method 300 may include:

[0419] S310, receiving second indication information for indicating that the sounding reference signal SRS on a first cell can be triggered by an aperiodic SRS trigger signaling on at least one third cell.

[0420] For example, after the terminal device receives the second indication information and receives the aperiodic SRS trigger signaling on any cell of the at least one third cell, the terminal device can be triggered to send the SRS on the first cell.

[0421] It should be noted that the cell involved in the embodiment of the present application may be equivalent to a carrier. For example, a cell may be equivalent to a component carrier (CC) in a CA scenario. In other words, the second indication information can be used to indicate that the sounding reference signal SRS on a first carrier can be triggered by an aperiodic SRS trigger signaling on at least one third carrier. In addition, the at least one third cell may be one cell, a group of cells, or multiple cells, and the present application does not make specific limitations thereto.

[0422] For example, if the at least one third cell is a single third cell, equivalently, the second indication information is used to indicate that the SRS on the first cell can be triggered by an aperiodic SRS trigger signaling on another cell. For another example, if the at least one third cell is a group of cells, equivalently, the second indication information can be used to indicate that the SRS on the first cell can be triggered by an aperiodic SRS trigger signaling on any cell in the group of cells. For yet another example, if the at least one third cell is multiple cells, equivalently, the first indication information can be used to indicate that the SRS on the first cell can be triggered by an SRS trigger command on any cell among the multiple cells. It should be understood that the group of cells or the multiple cells may or may not include the first cell, and the embodiments of the present application do not make specific limitations thereon.

[0423] Through the second indication information, the SRS on the first cell can be triggered by an aperiodic SRS trigger command on the at least one third cell. In other words, it is possible to achieve the triggering transmission of aperiodic SRS across cells (or across carriers) in a multi-cell scenario.

[0424] It should be understood that the at least one third cell may be the same as or different from the at least one second cell mentioned above, and the embodiments of the present application do not make specific limitations thereon.

[0425] In some embodiments of the present application, the second indication information is carried by a fourth radio resource control (RRC) signaling, and the fourth RRC signaling is configured by any one of the following:

[0426] SRS configuration SRS-Config;

[0427] Serving cell configuration ServingCellConfig;

[0428] Special cell configuration SpCellConfig;

[0429] Secondary cell configuration SCellConfig;

[0430] Serving cell shared configuration ServingCellConfigCommon;

[0431] Uplink configuration UplinkConfig;

[0432] Bandwidth part uplink BWP-Uplink;

[0433] Bandwidth part shared uplink BWP-UplinkCommon;

[0434] Bandwidth part dedicated uplink BWP-UplinkDedicated; or

[0435] SRS resource set SRS-ResourceSet.

[0436] In some embodiments of the present application, the second indication information indicates the at least one third cell through an indication field in the RRC signaling, wherein the aperiodic SRS trigger signaling on the at least one third cell is used to trigger the SRS on the first cell.

[0437] In other words, the second indication information indicates that the SRS on the first cell can be triggered by the aperiodic SRS trigger signaling on the at least one third cell through the indication field in the RRC.

[0438] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one third cell is all active cells of the terminal device to which it belongs, or the at least one third cell is all active cells of the cell group corresponding to the terminal device to which it belongs.

[0439] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the second cell group. Optionally, the maximum number of cells in the second cell group is 2, 4, 8 or 32.

[0440] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the first cell and the second cell group. Optionally, the maximum number of cells in the second cell group is 1, 2, 3, 4, 7, 8, 31 or 32.

[0441] In some embodiments of the present application, if the indication field is not configured or is configured with a specific value, the at least one third cell is the first cell, that is, the aperiodic SRS trigger signaling on the same cell only triggers the aperiodic SRS transmission on this cell.

[0442] In some embodiments of the present application, the value corresponding to the indication field indicates the second cell group through a bitmap or a cell identifier.

[0443] It should be understood that the cell identifier may also be referred to as a cell number, and the present application does not make specific limitations thereto.

[0444] In some embodiments of the present application, the method 300 may further include:

[0445] Receiving a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell.

[0446] For example, the terminal device receives the fifth RRC signaling sent by the network device.

[0447] In other words, the network device sends the fifth RRC signaling to the terminal device to configure the at least one cell.

[0448] It should be noted that for SRS, transmission needs to be based on an SRS resource set (SRS-ResourceSet) or an SRS resource (SRS-Resource). In other words, the SRS sent by the terminal device can be the SRS corresponding to the SRS resource set or the SRS resource. The time slot offset of the SRS corresponding to the SRS resource set is configured for the SRS resource set, and the time slot offset of the SRS corresponding to the SRS resource is configured for the SRS resource. The SRS corresponding to the SRS resource set introduced above can also be referred to as a normal SRS. Optionally, the usage domain in the SRS resource set can be configured as one of beam management, codebook, non-codebook, and antenna switching. The SRS corresponding to the SRS resource can also be an SRS for positioning, which is configured by the RRC signaling SRS-PosResource-r16, and the corresponding SRS resource set is configured by the RRC signaling SRS-PosResourceSet-r16. For the sake of simplicity in description later, only the normal SRS is taken as an example in some places, but the solution is equally applicable to the positioning SRS.

[0449] In some embodiments of the present application, the SRS resource sets of different cells among the first cell and the at least one third cell are configured by different SRS resource set SRS-ResourceSet signaling, and the SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured by different SRS resource SRS-Resource signaling.

[0450] It should be noted that the SRS resource sets involved in various embodiments of the present application are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

[0451] For example, the SRS resource set SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured by SRS configuration SRS-Config.

[0452] In some embodiments of the present application, for multiple triggering states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, the aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or the aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in the SRS resource set cell SRS-ResourceSet IE are configured. The aperiodicSRS-ResourceTrigger is used to configure one triggering state among the multiple non-zero triggering states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one triggering state among the multiple non-zero triggering states.

[0453] For example, in some embodiments of the present application, the value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS triggering states; the value of each element in the aperiodicSRS-ResourceTriggerList is an integer from 1 to N - 1.

[0454] For example, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0455] In some embodiments of the present application, the SRS resource set of the first cell is configured with at least one time slot offset; the method 300 may further include:

[0456] Determine a fourth time slot based on a first time slot and the time slot offset k corresponding to the SRS resource set of the first cell. The first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to a first value, and the first value is the value of the triggering state in the aperiodic SRS trigger signaling.

[0457] On the fourth time slot of the first cell, transmit the SRS corresponding to the SRS resource set of the first cell.

[0458] For example, the SRS resource set of the first cell is configured with multiple time slot offsets, and the time slot offset k corresponding to the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

[0459] For another example, the SRS resource set of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k.

[0460] For another example, the fourth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0461] In some embodiments of the present application, the SRS resource groups of different cells in the first cell and the at least one third cell are configured by different SRS-Pos resource group version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource groups in the SRS resource group of the first cell and the SRS resource groups of the at least one third cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0462] It should be noted that the SRS resource groups involved in each embodiment of the present application are all aperiodic SRS resource groups, and the SRS resources are all aperiodic SRS resources.

[0463] For example, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

[0464] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource group of the first cell and the SRS resource groups of the at least one third cell, they are configured by the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

[0465] For example, in some embodiments of the present application, the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

[0466] For example, the N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

[0467] In some embodiments of the present application, at least one time slot offset is configured for the SRS resources in the SRS resource group of the first cell; the method 300 may further include:

[0468] Determine a fifth time slot based on a time slot offset k' corresponding to the sounding reference signal (SRS) resource in the SRS resource set of the first cell and the first time slot, where the first time slot is the time slot in which the aperiodic SRS triggering signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to a first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0469] On the fifth time slot of the first cell, transmit the SRS corresponding to the SRS resource in the SRS resource set of the first cell.

[0470] For example, the SRS resource in the SRS resource set of the first cell is configured with multiple time slot offsets, and the time slot offset k' corresponding to the SRS resource in the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

[0471] For another example, the SRS resource set of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

[0472] For another example, the fifth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0473] It should be noted that the valid time slot can also be understood as a time slot available for uplink transmission. The time slot available for uplink transmission can be understood as a time slot only used for uplink transmission, that is, always used for uplink transmission, or can be understood as a time slot containing an uplink symbol, or can be understood as a time slot containing a flexible symbol, or can be understood as a flexible time slot, or can be understood as a time slot that is occasionally not available for uplink transmission. For example, a time slot occasionally used for downlink transmission. Optionally, whether the time slot available for uplink transmission in this application can actually be used for uplink transmission depends on whether there is a collision with other signal transmissions.

[0474] The technical solution of the method 200 will be described below with reference to specific embodiments.

[0475] Embodiment 7:

[0476] Step 1;

[0477] The terminal device receives cell configuration information sent by the network device through RRC signaling.

[0478] For example, carrier aggregation (CA) configuration information. There are A cells configured. For each of one or more (denoted as B, B <= A) of the A cells (in some cases, some cells may not be configured with corresponding aperiodic SRS, so it is written as one or more of A), the network device carries SRS configuration information through RRC signaling and configures one or more SRS resource sets, and each SRS resource set contains one or more SRS resources. The following description is for a certain cell among the B cells, and the configurations on different cells can be independent. The following takes cell Z as an example for description.

[0479] Optionally, the SRS resource set on cell Z is configured through the RRC signaling SRS-ResourceSet, and the SRS resource is configured through the RRC signaling SRS-Resource.

[0480] Optionally, the usage field in the SRS-ResourceSet signaling can be configured as one of beamManagement, codebook, nonCodebook, antennaSwitching.

[0481] Optionally, the SRS resource set on cell Z is configured with multiple (denoted as M, M >= 1) trigger states. Optionally, each trigger state corresponds to a value in the SRS request field in the aperiodic SRS trigger signaling, that is, a code point. For example, the values of the trigger states in Table 1.

[0482] Optionally, the above multiple trigger states are configured through aperiodicSRS-ResourceTrigger and aperiodicSRS-ResourceTriggerList in the SRS-ResourceSet IE, where aperiodicSRS-ResourceTrigger configures one value, and aperiodicSRS-ResourceTriggerList configures one or more values.

[0483] Optionally, the value range of aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1.

[0484] Optionally, the value of each element in aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1.

[0485] For example, N can be equal to the number of aperiodic SRS trigger states (maxNrofSRS-TriggerStates), with a value of 4.

[0486] As another example, the value of N is determined to be 4 or a larger value (e.g., 8 or 16) according to the configuration information sent by the network device; of course, in other alternative embodiments, other naming methods may be adopted. By increasing the number of states corresponding to the aperiodic SRS trigger signaling, the flexibility of DCI triggering aperiodic SRS can be improved, and the system performance can be enhanced.

[0487] Optionally, the configuration information is indicated to the terminal device by RRC signaling or MAC CE signaling.

[0488] Optionally, the terminal device notifies the network device through the terminal device capability reporting information that it can support more aperiodic SRS trigger states (Maximum number of SRS trigger states), that is, N is greater than 4, so that the network device determines N based on the capabilities reported by the terminal device.

[0489] Optionally, the RRC signaling is configured through SRS-Config.

[0490] Step 2:

[0491] For cell Z or BWP Y of cell Z, the network device indicates through the second indication information which aperiodic SRS trigger signaling on which cells can trigger the aperiodic SRS transmission of cell Z or BWP Y of cell Z, so that cross-cell triggering of aperiodic SRS can be achieved, DCI overhead can be reduced, and system flexibility can be increased.

[0492] Optionally, when the network device does not indicate relevant information through the above signaling, the aperiodic SRS trigger signaling sent on cell Z only triggers the SRS sent on the uplink corresponding to cell Z. Equivalently, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0493] Option 1:

[0494] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then the aperiodic SRS signaling transmitted on all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured for the corresponding active cell. This can trigger the aperiodic SRS transmission on cell Z. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signaling (DCI) can be reduced. At this time, when the terminal device receives the aperiodic SRS trigger signaling on any cell, it can trigger the aperiodic SRS transmission on cell Z.

[0495] Option 2:

[0496] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. Then, the terminal device transmits aperiodic SRS signaling on all active cells in the set of cells. For example, when corresponding aperiodic SRS is configured for the corresponding active cell, aperiodic SRS transmission on cell Z can be triggered. Compared with Option 1, on the one hand, this can more flexibly control which aperiodic SRS triggering signals on which cells can trigger an aperiodic SRS, rather than allowing all aperiodic SRS triggering signals on all active cells to trigger. This gives the network device greater flexibility and improves system performance.

[0497] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, using a bitmap can reduce signaling overhead.

[0498] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0499] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field includes the identifiers of each cell in the set of cells. When the number of cells in the set is small, it can reduce signaling overhead.

[0500] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0501] Option 3:

[0502] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. Then, the terminal device transmits aperiodic SRS signaling on all active cells in the set of cells. For example, when corresponding aperiodic SRS is configured for the corresponding active cell, and the aperiodic SRS signaling on cell Z can both trigger aperiodic SRS transmission on cell Z. Compared with Option 1, on the one hand, this can more flexibly control which aperiodic SRS triggering signals on which cells can trigger an aperiodic SRS, rather than allowing all aperiodic SRS triggering signals on all active cells to trigger. This gives the network device greater flexibility and improves system performance. Compared with Option 2, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0503] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (e.g., 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, using a bitmap can reduce signaling overhead.

[0504] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0505] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0506] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, it can reduce signaling overhead.

[0507] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0508] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0509] Optionally, the RRC signaling can be configured in any of the following ways:

[0510] The RRC signaling is configured through SRS-Config;

[0511] The RRC signaling is configured through ServingCellConfig;

[0512] The RRC signaling is configured through SpCellConfig;

[0513] The RRC signaling is configured through SCellConfig;

[0514] The RRC signaling is configured through ServingCellConfigCommon;

[0515] The RRC signaling is configured through UplinkConfig;

[0516] The RRC signaling is configured through BWP-Uplink;

[0517] The RRC signaling is configured through BWP-UplinkCommon;

[0518] The RRC signaling is configured through BWP-UplinkDedicated; or

[0519] The RRC signaling is configured through SRS-ResourceSet.

[0520] Step 3:

[0521] The terminal device receives an aperiodic SRS trigger signaling (denoted as the first signaling) in one of the above-determined cells (denoted as Z'), and the value corresponding to the first signaling is greater than 0 (the value is denoted as value), then the corresponding aperiodic SRS is sent on cell Z. The corresponding SRS resource group is configured with 1 slot offset or multiple slot offsets.

[0522] Optionally, the terminal device receives an aperiodic SRS trigger signaling (such as DCI) on slot n of cell Z', and the terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z according to the slot offset corresponding to the SRS resource group where the SRS resource is located.

[0523] Optionally, according to the slot offset k corresponding to the SRS resource group (in the case where the SRS resource group is configured with 1 slot offset, or when one slot offset is activated), or the slot offset k corresponding to the SRS resource group activated by the MAC signaling (in the case where the SRS resource group is configured with 1 or multiple slot offsets), or the slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS trigger signaling (in the case where the SRS resource group is configured with multiple slot offsets), the transmission slot of the SRS is determined, that is, slot n'.

[0524] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0525] Optionally, according to the slot offset k corresponding to the SRS resource group (in the case where the SRS resource group is configured with 1 slot offset, or when one slot offset is activated), or the slot offset k corresponding to the SRS resource group activated by the MAC signaling (in the case where the SRS resource group is configured with 1 or multiple slot offsets), or the slot offset k corresponding to the SRS resource group indicated by the aperiodic SRS trigger signaling (in the case where the SRS resource group is configured with multiple slot offsets), the kth or (k + 1)th valid slot on cell Z' after the slot where the aperiodic SRS trigger signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, reducing the congestion probability of responding to the aperiodic SRS trigger signaling. Optionally, the valid slot is a slot on which the SRS can be transmitted.

[0526] The above describes the solution in which the second indication information is used to trigger the SRS corresponding to the SRS resource group in conjunction with Embodiment 7. The following describes the use of the second indication information to trigger the SRS corresponding to the SRS resource in conjunction with Embodiment 8.

[0527] Embodiment 8:

[0528] Step 1:

[0529] The terminal device receives cell configuration information sent by the network device through RRC signaling.

[0530] For example, Carrier Aggregation (CA) configuration information. There are A cells configured. For each of one or more (denoted as B, B <= A) of the A cells (in some cases, some cells may not be configured with corresponding aperiodic SRS, so it is written as one or more of A), the network device carries SRS configuration information through RRC signaling, configures one or more SRS resource sets, and each SRS resource set contains one or more SRS resources. The following description is for a certain cell among the B cells, and the configurations on different cells can be independent. The following takes cell Z as an example for description.

[0531] Optionally, the SRS resource set is configured through the RRC signaling SRS-PosResourceSet-r16, and the SRS resource is configured through the RRC signaling SRS-PosResource-r16.

[0532] Optionally, multiple (denoted as M, M >= 1) trigger states are configured for at least one of the SRS resource sets (denoted as Set X). Optionally, each trigger state corresponds to a value in the SRS request field of the aperiodic SRS trigger signaling, that is, a code point. For example, the values of the trigger states in Table 1.

[0533] Optionally, the above multiple trigger states are configured through aperiodicSRS-ResourceTriggerList-r16 in SRS-PosResourceSet-r16.

[0534] Optionally, the value of each element in aperiodicSRS-ResourceTriggerList-r16 is an integer from 1 to N - 1.

[0535] For example, N can be equal to the number of aperiodic SRS trigger states (maxNrofSRS-TriggerStates), with a value of 4.

[0536] Again, according to the configuration information sent by the network device, the value of N is determined to be 4 or a larger value (for example, 8 or 16); of course, in other alternative embodiments, other names may be used. By increasing the number of states corresponding to the aperiodic SRS trigger signaling, the flexibility of DCI triggering aperiodic SRS can be improved, and the system performance can be enhanced.

[0537] Optionally, the configuration information is indicated to the terminal device through RRC signaling or MAC CE signaling.

[0538] Optionally, the terminal device notifies the network device through the terminal device capability reporting information that it can support more aperiodic SRS trigger states (Maximum number of SRS trigger states), that is, N is greater than 4, so that the network device determines N based on the capabilities reported by the terminal device.

[0539] Optionally, the RRC signaling is configured through SRS-Config.

[0540] Step 2:

[0541] For cell Z or BWP Y of cell Z, the network device indicates through the second indication information which aperiodic SRS trigger signals on which cells can trigger the aperiodic SRS transmission of cell Z or BWP Y of cell Z, so that cross-cell triggering of aperiodic SRS can be achieved, reducing the DCI overhead and increasing the system flexibility.

[0542] Optionally, when the network device does not indicate relevant information through the above signaling, the aperiodic SRS trigger signal sent on cell Z only triggers the SRS sent on the corresponding uplink of cell Z. Equivalently, when the terminal device does not receive the first indication information, the original triggering method is adopted.

[0543] Option 1:

[0544] The network device configures an indication field through RRC signaling. If the value corresponding to the indication field is a certain pre-specified value, then the aperiodic SRS signaling transmitted on all currently active cells of the terminal device. For example, in the case where the corresponding aperiodic SRS is configured in the corresponding active cell. It can trigger the aperiodic SRS transmission on cell Z. Based on this, not only can the first indication information be simplified, but also the overhead of the aperiodic SRS trigger signal (DCI) can be reduced. At this time, when the terminal device receives an aperiodic SRS trigger signal on any cell, it can trigger the aperiodic SRS transmission on cell Z.

[0545] Option 2:

[0546] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. Then, the terminal device transmits aperiodic SRS signaling on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cell, aperiodic SRS transmission on cell Z can be triggered. Compared with Option 1, this can more flexibly control which aperiodic SRS trigger signaling on which cells can trigger an aperiodic SRS, rather than allowing aperiodic SRS trigger signaling on all active cells to trigger. This gives the network device greater flexibility and improves system performance.

[0547] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, using a bitmap can reduce signaling overhead.

[0548] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0549] Optionally, the above indication field indicates a set of cells through cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, it can reduce signaling overhead.

[0550] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0551] Option 3:

[0552] The network device configures an indication field through RRC signaling. The indication field indicates a set of cells, and the set of cells includes one or more cells. Then, the terminal device transmits aperiodic SRS signaling on all active cells in the set of cells. For example, in the case where corresponding aperiodic SRS is configured for the corresponding active cell, and the aperiodic SRS signaling on cell Z can both trigger aperiodic SRS transmission on cell Z. Compared with Option 1, this can more flexibly control which aperiodic SRS trigger signaling on which cells can trigger an aperiodic SRS, rather than allowing aperiodic SRS trigger signaling on all active cells to trigger. This gives the network device greater flexibility and improves system performance. Compared with Option 2, the indication field can reduce the indication of cell Z, thereby reducing resource overhead.

[0553] Optionally, the above indication field indicates a set of cells through a bitmap. For example, if the corresponding bit is a specified value (such as 1), the cell corresponding to this bit belongs to the set of cells. When the number of cells in the set is large, using a bitmap can reduce signaling overhead.

[0554] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0555] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0556] Optionally, the above indication field indicates a set of cells by cell identifiers, that is, the indication field contains the identifiers of each cell in the set of cells. When the number of cells in the set is small, signaling overhead can be reduced.

[0557] Optionally, the indication field indicates at most 32, or 8, or 4, or 2 cells.

[0558] Optionally, the indication field indicates at most 31, or 7, or 3, or 1 cell.

[0559] Optionally, the RRC signaling can be configured in any of the following ways:

[0560] The RRC signaling is configured by SRS-Config;

[0561] The RRC signaling is configured by ServingCellConfig;

[0562] The RRC signaling is configured by SpCellConfig;

[0563] The RRC signaling is configured by SCellConfig;

[0564] The RRC signaling is configured by ServingCellConfigCommon;

[0565] The RRC signaling is configured by UplinkConfig;

[0566] The RRC signaling is configured by BWP-Uplink;

[0567] The RRC signaling is configured by BWP-UplinkCommon;

[0568] The RRC signaling is configured by BWP-UplinkDedicated; or

[0569] The RRC signaling is configured by SRS-ResourceSet.

[0570] Step 3:

[0571] The terminal device receives an aperiodic SRS triggering signaling (denoted as the first signaling) in one of the above-determined cells (denoted as Z'), and the value corresponding to the first signaling is greater than 0 (the value is denoted as value), then the corresponding aperiodic SRS is sent on cell Z. The corresponding SRS resource configuration has 1 slot offset or multiple slot offsets.

[0572] Optionally, the terminal device receives an aperiodic SRS triggering signaling (such as DCI) on slot n of cell Z'. The terminal device determines to transmit the SRS resource on slot n' corresponding to cell Z according to the slot offset corresponding to the SRS resource.

[0573] Optionally, according to the slot offset k corresponding to the SRS resource (in the case where the SRS resource configuration has 1 slot offset, or in the case where one slot offset is activated), or the slot offset k corresponding to the SRS resource activated by the MAC signaling (in the case where the SRS resource configuration has 1 or multiple slot offsets), or the slot offset k corresponding to the SRS resource indicated by the aperiodic SRS triggering signaling (in the case where the SRS resource configuration has multiple slot offsets), the transmission slot of the SRS, that is, slot n', is determined.

[0574] For example, the slot n' can be determined with reference to the formula involved in Embodiment 1.

[0575] Optionally, according to the slot offset k corresponding to the SRS resource (in the case where the SRS resource configuration has 1 slot offset, or in the case where one slot offset is activated), or the slot offset k corresponding to the SRS resource activated by the MAC signaling (in the case where the SRS resource configuration has 1 or multiple slot offsets), or the slot offset k corresponding to the SRS resource indicated by the aperiodic SRS triggering signaling (in the case where the SRS resource configuration has multiple slot offsets), the kth or (k + 1)th valid slot on cell Z' after the slot where the aperiodic SRS triggering signaling is located is slot n'. Thus, the aperiodic SRS can be triggered more flexibly, and the congestion probability of responding to the aperiodic SRS triggering signaling can be reduced. Optionally, the valid slot is a slot on which the SRS can be transmitted.

[0576] It should be understood that for the indication field and the RRC signaling in Embodiments 2 to 8, reference can be made to the specific examples in Embodiment 1. To avoid repetition, they are not elaborated here.

[0577] The preferred embodiments of the present application have been described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all fall within the protection scope of the present application. For example, for each of the specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present application will not describe various possible combination methods separately. Again, for example, any combination can be made between various different embodiments of the present application, as long as it does not violate the idea of the present application, it should also be regarded as the content disclosed by the present application.

[0578] It should also be understood that in various method embodiments of the present application, the magnitudes of the serial numbers of the above processes do not mean the order of execution. The execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink" and "uplink" are used to represent the transmission directions of signals or data. Among them, "downlink" is used to represent the first direction in which the signal or data is transmitted from the site to the user equipment of the cell, and "uplink" is used to represent the second direction in which the signal or data is transmitted from the user equipment of the cell to the site. For example, "downlink signal" means that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" only describes the association relationship of associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0579] As described above in conjunction with Figures 2 to 3 ,the method embodiments of the present application have been described in detail. Below in conjunction with Figures 4 to 9 ,the apparatus embodiments of the present application will be described in detail.

[0580] Figure 4 is a schematic block diagram of the terminal device 400 according to an embodiment of the present application.

[0581] As Figure 4 shown, the terminal device 400 may include:

[0582] A receiving unit 410, configured to receive first indication information, where the first indication information is used to indicate that the aperiodic sounding reference signal (SRS) triggering signaling on a first cell is used to trigger SRS on at least one second cell.

[0583] In some embodiments of the present application, the first indication information is used to indicate an aperiodic SRS triggering signaling on a first cell or a first bandwidth part (BWP) of the first cell, for triggering SRS on the first cell or at least one second cell corresponding to the first BWP.

[0584] In some embodiments of the present application, the first indication information is used to indicate a first triggering state, or a first triggering state in an aperiodic SRS triggering signaling on a first cell or a first bandwidth part (BWP) of the first cell, for triggering SRS on at least one second cell corresponding to the first triggering state.

[0585] In some embodiments of the present application, the first triggering state is a non-zero triggering state.

[0586] In some embodiments of the present application, the first indication information is carried by a first radio resource control (RRC) signaling, and the first RRC signaling is configured by any one of the following:

[0587] SRS configuration SRS-Config;

[0588] Serving cell configuration ServingCellConfig;

[0589] Special cell configuration SpCellConfig;

[0590] Secondary cell configuration SCellConfig;

[0591] Serving cell shared configuration ServingCellConfigCommon;

[0592] Uplink configuration UplinkConfig;

[0593] Bandwidth part uplink BWP-Uplink;

[0594] Bandwidth part shared uplink BWP-UplinkCommon; or

[0595] Bandwidth part dedicated uplink BWP-UplinkDedicated.

[0596] In some embodiments of the present application, the first indication information is used to indicate an aperiodic SRS triggering signaling on the first cell of the terminal device or the first cell of the target cell group of the terminal device, for triggering SRS on the terminal device or at least one second cell corresponding to the target cell group.

[0597] In some embodiments of the present application, the first indication information is carried by a second Radio Resource Control (RRC) signaling, and the second RRC signaling is configured by a Cell Group Configuration (CellGroupConfig).

[0598] In some embodiments of the present application, the first indication information indicates the at least one second cell through an indication field in the RRC signaling, wherein an aperiodic SRS trigger signaling on the first cell is used to trigger SRS on the at least one second cell.

[0599] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one second cell is all active cells.

[0600] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell group.

[0601] In some embodiments of the present application, the maximum number of cells in the first cell group is 2, 4, 8, or 32.

[0602] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is the first cell and all active cells in the first cell group.

[0603] In some embodiments of the present application, the maximum number of cells in the first cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

[0604] In some embodiments of the present application, the value corresponding to the indication field indicates the first cell group through a bitmap or a cell identifier.

[0605] In some embodiments of the present application, the receiving unit 410 is further configured to:

[0606] Receive a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell.

[0607] In some embodiments of the present application, SRS resource sets of different cells among the first cell and the at least one second cell are configured by different SRS Resource Set (SRS-ResourceSet) signaling, and SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS Resource (SRS-Resource) signaling.

[0608] In some embodiments of the present application, the SRS resource set SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured by the SRS configuration SRS-Config.

[0609] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured by the aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or the aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in the SRS resource set cell SRS-ResourceSet IE. The aperiodicSRS-ResourceTrigger is used to configure one trigger state among the multiple non-zero trigger states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one trigger state among the multiple non-zero trigger states.

[0610] In some embodiments of the present application, the value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N-1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1.

[0611] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0612] In some embodiments of the present application, the SRS resource set of each second cell in the at least one second cell is configured with at least one time slot offset; the receiving unit 410 is further configured to:

[0613] Determine the second time slot based on the first time slot and the time slot offset k corresponding to the SRS resource set of one second cell in the at least one second cell. The first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling.

[0614] On the second time slot of the one second cell, transmit the SRS corresponding to the SRS resource set of the one second cell.

[0615] In some embodiments of the present application, each second cell in the at least one second cell has its SRS resource group configured with a plurality of slot offsets, and the slot offset k corresponding to the SRS resource group of one second cell is the slot offset that has been activated among the plurality of slot offsets.

[0616] In some embodiments of the present application, each second cell in the at least one second cell has its SRS resource group configured with one slot offset, and the one slot offset is the slot offset k.

[0617] In some embodiments of the present application, the second time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0618] In some embodiments of the present application, the SRS resource groups of different cells in the first cell and the at least one second cell are configured by different SRS-Pos resource group version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource groups in the SRS resource group of the first cell and the SRS resource groups of the at least one second cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0619] In some embodiments of the present application, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

[0620] In some embodiments of the present application, for the multiple trigger states corresponding to the SRS resource group of the first cell and the SRS resource groups of the at least one second cell, they are configured by the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

[0621] In some embodiments of the present application, the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

[0622] In some embodiments of the present application, the N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

[0623] In some embodiments of the present application, at least one time slot offset is configured for the SRS resources in the SRS resource group of each second cell among the at least one second cell; the receiving unit 410 is further configured to:

[0624] Determine a third time slot based on the first time slot and the time slot offset k' corresponding to the SRS resources in the SRS resource group of one second cell among the at least one second cell, where the first time slot is the time slot where the aperiodic SRS triggering signaling is located, the SRS resource group of the one second cell is the SRS resource group corresponding to the first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0625] On the third time slot of the one second cell, transmit the SRS corresponding to the SRS resources in the SRS resource group of the one second cell.

[0626] In some embodiments of the present application, multiple time slot offsets are configured for the SRS resource group of each second cell among the at least one second cell, and the time slot offset k' corresponding to the SRS resources in the SRS resource group of the one second cell is the activated time slot offset among the multiple time slot offsets.

[0627] In some embodiments of the present application, one time slot offset is configured for the SRS resource group of each second cell among the at least one second cell, and the one time slot offset is the time slot offset k'.

[0628] In some embodiments of the present application, the third time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0629] It should be understood that the apparatus embodiments and the method embodiments can correspond to each other, and similar descriptions can refer to the method embodiments. Specifically, Figure 4 The terminal device 400 shown can correspond to the corresponding entity in the method 200 of the embodiments of the present application, and the foregoing and other operations and / or functions of each unit in the terminal device 400 are respectively for implementing Figure 2 the corresponding processes in each method in, and for the sake of brevity, they will not be elaborated here.

[0630] Figure 5 is a schematic block diagram of a network device 500 provided by an embodiment of the present application.

[0631] As Figure 5 shown, the network device 500 may include:

[0632] A transmitting unit 510, configured to transmit first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) triggering signaling on a first cell is used to trigger SRS on at least one second cell.

[0633] In some embodiments of this application, the first indication information is used to indicate an aperiodic SRS triggering signaling on a first cell or a first bandwidth part (BWP) of the first cell, and is used to trigger SRS on at least one second cell corresponding to the first cell or the first BWP.

[0634] In some embodiments of this application, the first indication information is used to indicate a first triggering state, or a first triggering state in an aperiodic SRS triggering signaling on a first cell or a first BWP of the first cell, and is used to trigger SRS on at least one second cell corresponding to the first triggering state.

[0635] In some embodiments of this application, the first triggering state is a non-zero triggering state.

[0636] In some embodiments of this application, the first indication information is carried by a first radio resource control (RRC) signaling, and the first RRC signaling is configured by any one of the following:

[0637] SRS configuration SRS-Config;

[0638] Serving cell configuration ServingCellConfig;

[0639] Special cell configuration SpCellConfig;

[0640] Secondary cell configuration SCellConfig;

[0641] Serving cell shared configuration ServingCellConfigCommon;

[0642] Uplink configuration UplinkConfig;

[0643] Bandwidth part uplink BWP-Uplink;

[0644] Bandwidth part shared uplink BWP-UplinkCommon; or

[0645] Bandwidth part dedicated uplink BWP-UplinkDedicated.

[0646] In some embodiments of the present application, the first indication information is used to indicate an aperiodic SRS trigger signaling on the first cell of the terminal device or the first cell of the target cell group of the terminal device, for triggering SRS on the terminal device or the at least one second cell corresponding to the target cell group.

[0647] In some embodiments of the present application, the first indication information is carried by a second Radio Resource Control (RRC) signaling, and the second RRC signaling is configured by CellGroupConfig.

[0648] In some embodiments of the present application, the first indication information indicates the at least one second cell through an indication field in the RRC signaling, wherein the aperiodic SRS trigger signaling on the first cell is used to trigger SRS on the at least one second cell.

[0649] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one second cell is all active cells.

[0650] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell group.

[0651] In some embodiments of the present application, the maximum number of cells in the first cell group is 2, 4, 8, or 32.

[0652] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is the first cell and all active cells in the first cell group.

[0653] In some embodiments of the present application, the maximum number of cells in the first cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

[0654] In some embodiments of the present application, the value corresponding to the indication field indicates the first cell group through a bitmap or a cell identifier.

[0655] In some embodiments of the present application, the sending unit 510 is further configured to:

[0656] Send a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell.

[0657] In some embodiments of the present application, SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS resource set SRS-ResourceSet signaling, and SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS resource SRS-Resource signaling.

[0658] In some embodiments of the present application, the SRS resource set SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured by SRS configuration SRS-Config.

[0659] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured by an aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or an aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in an SRS resource set cell SRS-ResourceSet IE. The aperiodicSRS-ResourceTrigger is used to configure one trigger state among the multiple non-zero trigger states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one trigger state among the multiple non-zero trigger states.

[0660] In some embodiments of the present application, the value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1.

[0661] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0662] In some embodiments of the present application, at least one time slot offset is configured for the SRS resource set of each second cell in the at least one second cell; the sending unit 510 is further configured to:

[0663] Determine the second time slot based on the time slot offset k corresponding to the SRS resource set of the first time slot and a second cell among the at least one second cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling;

[0664] On the second time slot of the one second cell, receive the SRS corresponding to the SRS resource set of the one second cell.

[0665] In some embodiments of the present application, multiple time slot offsets are configured for the SRS resource set of each second cell among the at least one second cell, and the time slot offset k corresponding to the SRS resource set of the one second cell is the activated time slot offset among the multiple time slot offsets.

[0666] In some embodiments of the present application, each second cell among the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k.

[0667] In some embodiments of the present application, the second time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0668] In some embodiments of the present application, the SRS resource sets of different cells among the first cell and the at least one second cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0669] In some embodiments of the present application, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

[0670] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured through the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

[0671] In some embodiments of the present application, the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; N represents the number of aperiodic SRS trigger states.

[0672] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0673] In some embodiments of the present application, at least one SRS resource in the SRS resource group of each second cell in the at least one second cell is configured with at least one time slot offset; the sending unit 510 is further configured to:

[0674] Determine a third time slot based on the first time slot and the time slot offset k' corresponding to the SRS resource in the SRS resource group of one second cell in the at least one second cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource group of the one second cell is the SRS resource group corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling;

[0675] Receive the SRS corresponding to the SRS resource in the SRS resource group of the one second cell on the third time slot of the one second cell.

[0676] In some embodiments of the present application, each SRS resource group in the at least one second cell is configured with multiple time slot offsets, and the time slot offset k' corresponding to the SRS resource in the SRS resource group of the one second cell is the activated time slot offset among the multiple time slot offsets.

[0677] In some embodiments of the present application, each SRS resource group in the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

[0678] In some embodiments of the present application, the third time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0679] It should be understood that the apparatus embodiments and the method embodiments can correspond to each other, and similar descriptions can refer to the method embodiments. Specifically, Figure 5 The network device 500 shown can correspond to the corresponding entity in the method 200 of the embodiments of the present application, and the foregoing and other operations and / or functions of each unit in the network device 500 are respectively for the purpose of implementing Figure 2The corresponding processes in each of the methods above are not elaborated here for the sake of brevity.

[0680] Figure 6 FIG. is a schematic block diagram of a terminal device 600 provided by an embodiment of the present application.

[0681] As Figure 6 shown, the terminal device 600 may include:

[0682] A receiving unit 610, configured to receive second indication information, where the second indication information is used to indicate that a sounding reference signal SRS on a first cell can be triggered by an aperiodic SRS trigger signaling on at least one third cell.

[0683] In some embodiments of the present application, the second indication information is carried by a fourth radio resource control RRC signaling, and the fourth RRC signaling is configured by any one of the following:

[0684] SRS configuration SRS-Config;

[0685] Serving cell configuration ServingCellConfig;

[0686] Special cell configuration SpCellConfig;

[0687] Secondary cell configuration SCellConfig;

[0688] Serving cell shared configuration ServingCellConfigCommon;

[0689] Uplink configuration UplinkConfig;

[0690] Bandwidth part uplink BWP-Uplink;

[0691] Bandwidth part shared uplink BWP-UplinkCommon;

[0692] Bandwidth part dedicated uplink BWP-UplinkDedicated; or

[0693] SRS resource group SRS-ResourceSet.

[0694] In some embodiments of the present application, the second indication information indicates the at least one third cell through an indication field in the RRC signaling, where the aperiodic SRS trigger signaling on the at least one third cell is used to trigger the SRS on the first cell.

[0695] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one third cell is all active cells.

[0696] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the second cell group.

[0697] In some embodiments of the present application, the maximum number of cells in the second cell group is 2, 4, 8, or 32.

[0698] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is the first cell and all active cells in the second cell group.

[0699] In some embodiments of the present application, the maximum number of cells in the second cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

[0700] In some embodiments of the present application, the value corresponding to the indication field indicates the second cell group through a bitmap or a cell identifier.

[0701] In some embodiments of the present application, the receiving unit 610 is further configured to:

[0702] Receive a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell.

[0703] In some embodiments of the present application, the SRS resource groups of different cells in the first cell and the at least one third cell are configured through different SRS resource group SRS-ResourceSet signals, and the SRS resources in different SRS resource groups in the SRS resource group of the first cell and the SRS resource groups of the at least one third cell are configured through different SRS resource SRS-Resource signals.

[0704] In some embodiments of the present application, the SRS resource group SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured through SRS configuration SRS-Config.

[0705] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, the aperiodic SRS resource trigger and / or the aperiodic SRS resource trigger list in the SRS resource set cell SRS-ResourceSet IE are used for configuration. The aperiodic SRS resource trigger is used to configure one trigger state among the multiple non-zero trigger states, and the aperiodic SRS resource trigger list is used to configure one or more than one trigger state among the multiple non-zero trigger states.

[0706] In some embodiments of the present application, the value of the aperiodic SRS resource trigger is an integer from 1 to N-1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodic SRS resource trigger list is an integer from 1 to N-1.

[0707] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0708] In some embodiments of the present application, the SRS resource set of the first cell is configured with at least one time slot offset; the receiving unit 610 is further configured to:

[0709] Determine a fourth time slot based on the first time slot and the time slot offset k corresponding to the SRS resource set of the first cell. The first time slot is the time slot where the aperiodic SRS trigger signaling is located. The SRS resource set of the first cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling.

[0710] On the fourth time slot of the first cell, transmit the SRS corresponding to the SRS resource set of the first cell.

[0711] In some embodiments of the present application, the SRS resource set of the first cell is configured with multiple time slot offsets, and the time slot offset k corresponding to the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

[0712] In some embodiments of the present application, the SRS resource set of the first cell is configured with a slot offset, and the slot offset is the slot offset k.

[0713] In some embodiments of the present application, the fourth slot is a valid slot after the first slot, and the valid slot is a slot available for transmitting SRS.

[0714] In some embodiments of the present application, the SRS resource sets of different cells in the first cell and the at least one third cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0715] In some embodiments of the present application, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

[0716] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, they are configured by the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

[0717] In some embodiments of the present application, the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

[0718] In some embodiments of the present application, the N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

[0719] In some embodiments of the present application, the SRS resources in the SRS resource set of the first cell are configured with at least one slot offset; the receiving unit 610 is further configured to:

[0720] Determine a fifth time slot based on the time slot offset k' corresponding to the sounding reference signal (SRS) resources in the SRS resource group of the first time slot and the first cell, where the first time slot is the time slot in which the aperiodic SRS triggering signaling is located, the SRS resource group of the first cell is the SRS resource group corresponding to a first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0721] On the fifth time slot of the first cell, transmit the SRS corresponding to the SRS resources in the SRS resource group of the first cell.

[0722] In some embodiments of the present application, the SRS resources in the SRS resource group of the first cell are configured with multiple time slot offsets, and the time slot offset k' corresponding to the SRS resources in the SRS resource group of the first cell is the activated time slot offset among the multiple time slot offsets.

[0723] In some embodiments of the present application, the SRS resource group of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

[0724] In some embodiments of the present application, the fifth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0725] It should be understood that the apparatus embodiments and the method embodiments can correspond to each other, and similar descriptions can refer to the method embodiments. Specifically, Figure 6 the shown terminal device 600 can correspond to the corresponding entity in the method 300 of the embodiments of the present application, and the foregoing and other operations and / or functions of each unit in the terminal device 600 are respectively for implementing Figure 3 the corresponding processes in the respective methods in, and for the sake of brevity, will not be described in detail herein.

[0726] Figure 7 is a schematic block diagram of a network device 700 provided by an embodiment of the present application.

[0727] As Figure 7 shown, the network device 700 may include:

[0728] A transmitting unit 710, configured to transmit second indication information, where the second indication information is used to indicate that the sounding reference signal SRS on the first cell can be triggered by an aperiodic SRS triggering signaling on at least one third cell.

[0729] In some embodiments of the present application, the second indication information is carried by a fourth radio resource control (RRC) signaling, and the fourth RRC signaling is configured by any one of the following:

[0730] SRS configuration SRS-Config;

[0731] Serving cell configuration ServingCellConfig;

[0732] Special cell configuration SpCellConfig;

[0733] Secondary cell configuration SCellConfig;

[0734] Serving cell shared configuration ServingCellConfigCommon;

[0735] Uplink configuration UplinkConfig;

[0736] Bandwidth part uplink BWP-Uplink;

[0737] Bandwidth part shared uplink BWP-UplinkCommon;

[0738] Bandwidth part dedicated uplink BWP-UplinkDedicated; or

[0739] SRS resource set SRS-ResourceSet.

[0740] In some embodiments of the present application, the second indication information indicates the at least one third cell through an indication field in the RRC signaling, wherein the aperiodic SRS trigger signaling on the at least one third cell is used to trigger the SRS on the first cell.

[0741] In some embodiments of the present application, if the value corresponding to the indication field is a preset value, the at least one third cell is all active cells.

[0742] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the second cell group.

[0743] In some embodiments of the present application, the maximum number of cells in the second cell group is 2, 4, 8 or 32.

[0744] In some embodiments of the present application, if the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is the first cell and all active cells in the second cell group.

[0745] In some embodiments of the present application, the maximum number of cells in the second cell group is 1, 2, 3, 4, 7, 8, 31 or 32.

[0746] In some embodiments of the present application, the value corresponding to the indication field indicates the second cell group through a bitmap or a cell identifier.

[0747] In some embodiments of the present application, the sending unit 710 is further configured to:

[0748] Send a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell.

[0749] In some embodiments of the present application, the SRS resource groups of different cells among the first cell and the at least one third cell are configured by different SRS resource group SRS-ResourceSet signaling, and the SRS resources in different SRS resource groups among the SRS resource group of the first cell and the SRS resource groups of the at least one third cell are configured by different SRS resource SRS-Resource signaling.

[0750] In some embodiments of the present application, the SRS resource group SRS-ResourceSet signaling or the SRS resource SRS-Resource signaling is configured by an SRS configuration SRS-Config.

[0751] In some embodiments of the present application, for multiple trigger states corresponding to the SRS resource group of the first cell and the SRS resource groups of the at least one third cell, they are configured through an aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or an aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in an SRS resource group cell SRS-ResourceSet IE, where the aperiodicSRS-ResourceTrigger is used to configure one trigger state among the multiple non-zero trigger states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one trigger state among the multiple non-zero trigger states.

[0752] In some embodiments of the present application, the value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N-1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1.

[0753] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0754] In some embodiments of the present application, at least one time slot offset is configured for the SRS resource set of the first cell; the sending unit 710 is further configured to:

[0755] Determine a fourth time slot based on a first time slot and a time slot offset k corresponding to the SRS resource set of the first cell, where the first time slot is the time slot in which the aperiodic SRS triggering signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to a first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0756] Receive the SRS corresponding to the SRS resource set of the first cell on the fourth time slot of the first cell.

[0757] In some embodiments of the present application, multiple time slot offsets are configured for the SRS resource set of the first cell, and the time slot offset k corresponding to the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

[0758] In some embodiments of the present application, one time slot offset is configured for the SRS resource set of the first cell, and the one time slot offset is the time slot offset k.

[0759] In some embodiments of the present application, the fourth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0760] In some embodiments of the present application, the SRS resource sets of different cells among the first cell and the at least one third cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets among the SRS resource sets of the first cell and the at least one third cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

[0761] In some embodiments of the present application, the SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

[0762] In some embodiments of the present application, for multiple triggering states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, configuration is performed through the aperiodic SRS resource trigger list r16 (aperiodicSRS-ResourceTriggerList-r16) in the SRS-PosResourceSet-r16.

[0763] In some embodiments of the present application, the value of each element in the aperiodicSRS-ResourceTriggerList is an integer from 1 to N-1; N represents the number of aperiodic SRS triggering states.

[0764] In some embodiments of the present application, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

[0765] In some embodiments of the present application, the SRS resources in the SRS resource set of the first cell are configured with at least one time slot offset; the sending unit 710 is further configured to:

[0766] Determine a fifth time slot based on a first time slot and a time slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell, where the first time slot is the time slot in which the aperiodic SRS triggering signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to a first value, and the first value is the value of the triggering state in the aperiodic SRS triggering signaling;

[0767] Receive the SRS corresponding to the SRS resources in the SRS resource set of the first cell on the fifth time slot of the first cell.

[0768] In some embodiments of the present application, the SRS resources in the SRS resource set of the first cell are configured with multiple time slot offsets, and the time slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

[0769] In some embodiments of the present application, the SRS resource set of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

[0770] In some embodiments of the present application, the fifth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

[0771] It should be understood that the apparatus embodiments and the method embodiments can correspond to each other, and similar descriptions can refer to the method embodiments. Specifically,Figure 7 The network device 700 shown may correspond to the corresponding entity in the method 300 of the embodiments of the present application, and the foregoing and other operations and / or functions of each unit in the network device 700 are respectively for implementing Figure 3 the corresponding processes in the respective methods in, for the sake of brevity, will not be elaborated herein.

[0772] In the foregoing, the communication device of the embodiments of the present application has been described from the perspective of functional modules. It should be understood that the functional module can be implemented in the form of hardware, can also be implemented by instructions in the form of software, and can also be implemented by a combination of hardware and software modules.

[0773] Specifically, the steps of the method embodiments in the present application can be completed by the integrated logic circuit in the hardware in the processor and / or instructions in the form of software. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or can be executed and completed by a combination of the hardware and software modules in the decoding processor.

[0774] Optionally, the software module can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps in the foregoing method embodiments.

[0775] For example, the receiving unit or the sending unit mentioned above can be implemented by a transceiver.

[0776] Figure 8 is a schematic structural diagram of the communication device 800 of the embodiments of the present application.

[0777] As Figure 8 shown, the communication device 800 may include a processor 810.

[0778] Among them, the processor 810 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

[0779] Please continue to refer to Figure 8 , the communication device 800 may further include a memory 820.

[0780] Among them, the memory 820 can be used to store indication information, and can also be used to store codes, instructions, etc. executed by the processor 810. Among them, the processor 810 can call and run a computer program from the memory 820 to implement the method in the embodiments of the present application. The memory 820 can be a separate device independent of the processor 810, or can be integrated in the processor 810.

[0781] Please continue to refer to Figure 8, the communication device 800 may further include a transceiver 830.

[0782] Among them, the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, it may send information or data to other devices, or receive information or data sent by other devices. The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of antennas may be one or more.

[0783] It should be understood that the components in the communication device 800 are connected through a bus system. Among them, the bus system includes, in addition to a data bus, a power bus, a control bus, and a status signal bus.

[0784] It should also be understood that the communication device 800 may be the terminal device in the embodiments of the present application, and the communication device 800 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. That is to say, the communication device 800 in the embodiments of the present application may correspond to the terminal device 400 or the terminal device 600 in the embodiments of the present application, and may correspond to the corresponding subject executing the methods according to the embodiments of the present application. For the sake of brevity, it will not be elaborated here. Similarly, the communication device 800 may be the network device in the embodiments of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. That is to say, the communication device 800 in the embodiments of the present application may correspond to the network device 500 or the network device 700 in the embodiments of the present application, and may correspond to the corresponding subject executing the methods according to the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0785] In addition, an integrated circuit chip is provided in the embodiments of the present application.

[0786] For example, the chip may be an integrated circuit chip with signal processing capabilities, and may implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The chip may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip. Optionally, the chip may be applied to various communication devices, so that the communication devices installed with the chip can execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application.

[0787] Figure 9 is a schematic structural diagram of the chip 900 according to the embodiments of the present application.

[0788] As Figure 9 shown, the chip 900 includes a processor 910.

[0789] Among them, the processor 910 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

[0790] Please continue to refer to Figure 9 , the chip 900 may further include a memory 920.

[0791] Among them, the processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application. The memory 920 may be used to store indication information, and may also be used to store code, instructions, etc. executed by the processor 910. The memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910.

[0792] Please continue to refer to Figure 9 , the chip 900 may further include an input interface 930.

[0793] Among them, the processor 910 may control the input interface 930 to communicate with other devices or chips. Specifically, it may obtain information or data sent by other devices or chips.

[0794] Please continue to refer to Figure 9 , the chip 900 may further include an output interface 940.

[0795] Among them, the processor 910 may control the output interface 940 to communicate with other devices or chips. Specifically, it may output information or data to other devices or chips.

[0796] It should be understood that the chip 900 may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, and may also implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0797] It should also be understood that each component in the chip 900 is connected through a bus system. Among them, the bus system includes, in addition to the data bus, a power bus, a control bus, and a status signal bus.

[0798] The processor mentioned above may include but is not limited to:

[0799] General-purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0800] The processor can be used to implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The steps of the methods disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software modules can be located in storage media well-known in the art such as random access memory, flash memory, read-only memory, programmable read-only memory, or erasable programmable memory, registers, etc. This storage media is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above methods.

[0801] The memory mentioned above includes but is not limited to:

[0802] Volatile memory and / or non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM).

[0803] It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

[0804] In the embodiments of the present application, a computer-readable storage medium is also provided for storing a computer program. The computer-readable storage medium stores one or more programs, and the one or more programs include instructions that, when executed by a portable electronic device including a plurality of application programs, can enable the portable electronic device to execute the methods shown in the embodiments of Method 200 or 300.

[0805] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0806] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0807] An embodiment of the present application also provides a computer program product, including a computer program.

[0808] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0809] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0810] An embodiment of the present application also provides a computer program. When the computer program is executed by a computer, the computer can execute the methods shown in Embodiment 200 or 300.

[0811] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on the computer, the computer is caused to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not repeated here.

[0812] In addition, an embodiment of the present application also provides a communication system, which may include the above-mentioned terminal device and network device to form a communication system 100 as shown in Figure 1 For the sake of brevity, details are not repeated here. It should be noted that terms such as "system" in this document may also be referred to as "network management architecture" or "network system", etc.

[0813] It should also be understood that the terms used in the embodiments of the present application and the appended claims are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present application.

[0814] For example, the singular forms "a", "the", "above", and "this" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly dictates otherwise.

[0815] Those skilled in the art will recognize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled professionals can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present application.

[0816] If implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard drives, read-only memories, random access memories, magnetic disks, or optical discs that can store program codes.

[0817] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0818] In several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways.

[0819] For example, the division of units, modules, or components in the device embodiments described above is only a logical functional division. In actual implementation, there can be other division methods. For example, multiple units, modules, or components can be combined or integrated into another system, or some units, modules, or components can be ignored or not executed.

[0820] Again, for example, the units / modules / components described as separate / display components may or may not be physically separated, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units / modules / components can be selected according to actual needs to achieve the objectives of the embodiments of the present application.

[0821] Finally, it should be noted that the couplings, direct couplings or communication connections shown or discussed above between each other can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0822] The above content is only the specific implementation manner of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the embodiments of the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application should be subject to the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that, including: receiving first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) triggering signaling on a first cell is used to trigger SRS on at least one second cell; wherein, the first indication information indicates the at least one second cell through an indication field in an RRC signaling, where the aperiodic SRS triggering signaling on the first cell is used to trigger SRS on the at least one second cell; wherein, if a value corresponding to the indication field is a preset value, the at least one second cell is all active cells; the method further includes: receiving a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell; wherein, SRS resource sets of different cells among the first cell and the at least one second cell are configured through different SRS resource set (SRS-ResourceSet) signallings, and SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured through different SRS resource (SRS-Resource) signallings; wherein, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

2. The method according to claim 1, wherein The first indication information is used to indicate an aperiodic SRS triggering signaling on a first cell or a first bandwidth part (BWP) of the first cell, and is used to trigger SRS on the at least one second cell corresponding to the first cell or the first BWP.

3. The method according to claim 1, wherein The first indication information is used to indicate a first triggering state, or a first triggering state in an aperiodic SRS triggering signaling on a first cell or a first bandwidth part (BWP) of the first cell, and is used to trigger SRS on the at least one second cell corresponding to the first triggering state.

4. The method according to claim 3, wherein The first triggering state is a non-zero triggering state.

5. The method according to claim 2, wherein The first indication information is carried by a first radio resource control (RRC) signaling, and the first RRC signaling is configured by any one of the following: SRS configuration (SRS-Config); serving cell configuration (ServingCellConfig); special cell configuration (SpCellConfig); secondary cell configuration (SCellConfig); serving cell shared configuration (ServingCellConfigCommon); uplink configuration (UplinkConfig); bandwidth part uplink (BWP-Uplink); bandwidth part shared uplink (BWP-UplinkCommon); or bandwidth part dedicated uplink (BWP-UplinkDedicated).

6. The method according to claim 1, wherein The first indication information is used to indicate an aperiodic SRS triggering signaling on the first cell of the terminal device or the first cell of the target cell group of the terminal device, and is used to trigger SRS on the at least one second cell corresponding to the terminal device or the target cell group.

7. The method according to claim 6, wherein The first indication information is carried by a second Radio Resource Control (RRC) signaling, and the second RRC signaling is configured by a Cell Group Configuration (CellGroupConfig).

8. The method according to claim 1, characterized in that, If the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell group.

9. The method according to claim 8, wherein The maximum number of cells in the first cell group is 2, 4, 8, or 32.

10. The method according to claim 1, wherein If the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is the first cell and all active cells in the first cell group.

11. The method according to claim 10, wherein The maximum number of cells in the first cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

12. The method according to any one of claims 8 to 11, characterized in that, The value corresponding to the indication field indicates the first cell group by a bitmap or a cell identifier.

13. The method according to claim 1, characterized in that, The SRS Resource Set (SRS-ResourceSet) signaling or the SRS Resource (SRS-Resource) signaling is configured by an SRS Configuration (SRS-Config).

14. The method according to claim 1, characterized in that, For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured by an aperiodic SRS resource trigger and / or an aperiodic SRS resource trigger list in an SRS Resource Set Information Element (SRS-ResourceSet IE). The aperiodic SRS resource trigger is used to configure one trigger state among multiple non-zero trigger states, and the aperiodic SRS resource trigger list is used to configure one or more than one trigger state among the multiple non-zero trigger states.

15. The method according to claim 14, characterized in that, The value of the aperiodic SRS resource trigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodic SRS resource trigger list is an integer from 1 to N - 1.

16. The method according to claim 15, wherein N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

17. The method according to claim 1, wherein Each SRS resource group of each of the at least one second cell is configured with at least one time slot offset; the method includes: Determining a second time slot based on a first time slot and a time slot offset k corresponding to the SRS resource group of one of the at least one second cells. The first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource group of the one second cell is the SRS resource group corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling. Transmitting the SRS corresponding to the SRS resource group of the one second cell on the second time slot of the one second cell.

18. The method according to claim 17, characterized in that, Each SRS resource set in each of the at least one second cell is configured with a plurality of slot offsets, and the slot offset k corresponding to the SRS resource set of one second cell is the activated slot offset among the plurality of slot offsets.

19. The method according to claim 18, characterized in that, Each SRS resource set in each of the at least one second cell is configured with one slot offset, and the one slot offset is the slot offset k.

20. The method according to claim 17, wherein The second time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

21. The method according to claim 1, wherein The SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

22. The method according to claim 21, wherein, The SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

23. The method according to claim 21, characterized in that, For the multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, they are configured by the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

24. The method according to claim 23, wherein The value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1; the N represents the number of aperiodic SRS trigger states.

25. The method according to claim 24, wherein The N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

26. The method according to claim 21, wherein Each SRS resource set in each of the at least one second cell is configured with at least one slot offset; the method further includes: Determine a third time slot based on the first time slot and the slot offset k' corresponding to the SRS resource in the SRS resource set of one second cell among the at least one second cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; On the third time slot of the one second cell, transmit the SRS corresponding to the SRS resource in the SRS resource set of the one second cell.

27. The method according to claim 26, wherein Each SRS resource set in each of the at least one second cell is configured with a plurality of slot offsets, and the slot offset k' corresponding to the SRS resource in the SRS resource set of one second cell is the activated slot offset among the plurality of slot offsets.

28. The method according to claim 26, wherein Each second cell in the at least one second cell is configured with a slot offset for an SRS resource group, and the one slot offset is the slot offset k'.

29. The method according to claim 26, wherein, The third slot is a valid slot after the first slot, and the valid slot is a slot available for transmitting SRS.

30. A wireless communication method, characterized in that, including: Sending first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal (SRS) trigger signaling on a first cell is used to trigger SRS on at least one second cell; wherein, the first indication information indicates the at least one second cell through an indication field in an RRC signaling, and wherein, the aperiodic SRS trigger signaling on the first cell is used to trigger SRS on the at least one second cell; wherein, if a value corresponding to the indication field is a preset value, the at least one second cell is all active cells; The method further includes: Sending a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell; wherein, SRS resource groups of different cells among the first cell and the at least one second cell are configured through different SRS resource group (SRS-ResourceSet) signaling, and SRS resources in different SRS resource groups among the SRS resource group of the first cell and the SRS resource groups of the at least one second cell are configured through different SRS resource (SRS-Resource) signaling; wherein, the SRS resource groups are all aperiodic SRS resource groups, and the SRS resources are all aperiodic SRS resources.

31. The method according to claim 30, wherein The first indication information is used to indicate an aperiodic SRS trigger signaling on a first cell or a first bandwidth part (BWP) of the first cell, and is used to trigger SRS on the at least one second cell corresponding to the first cell or the first BWP.

32. The method according to claim 30, wherein The first indication information is used to indicate a first trigger state, or a first trigger state in an aperiodic SRS trigger signaling on a first cell or a first bandwidth part (BWP) of the first cell, and is used to trigger SRS on the at least one second cell corresponding to the first trigger state.

33. The method according to claim 32, wherein The first trigger state is a non-zero trigger state.

34. The method according to claim 31, wherein The first indication information is carried by a first radio resource control (RRC) signaling, and the first RRC signaling is configured by any one of the following: SRS configuration (SRS-Config); Serving cell configuration (ServingCellConfig); Special cell configuration (SpCellConfig); Secondary cell configuration (SCellConfig); Serving cell shared configuration (ServingCellConfigCommon); Uplink configuration (UplinkConfig); Bandwidth part uplink (BWP-Uplink); Bandwidth part shared uplink (BWP-UplinkCommon); or Bandwidth part dedicated uplink (BWP-UplinkDedicated).

35. The method according to claim 33, wherein The first indication information is used to indicate an aperiodic SRS triggering signaling on the first cell of the terminal device or the first cell of the target cell group of the terminal device, for triggering SRS on the terminal device or the at least one second cell corresponding to the target cell group.

36. The method according to claim 35, characterized in that, The first indication information is carried by a second Radio Resource Control (RRC) signaling, and the second RRC signaling is configured by a CellGroupConfig.

37. The method according to claim 30, characterized in that If the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is all active cells in the first cell group.

38. The method according to claim 37, wherein The maximum number of cells in the first cell group is 2, 4, 8, or 32.

39. The method according to claim 30, characterized in that, If the value corresponding to the indication field is used to indicate a first cell group, the at least one second cell is the first cell and all active cells in the first cell group.

40. The method according to claim 39, wherein The maximum number of cells in the first cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

41. The method according to claim 37, characterized in that, The value corresponding to the indication field indicates the first cell group by a bitmap or a cell identifier.

42. The method according to claim 30, wherein The SRS Resource Set (SRS-ResourceSet) signaling or the SRS Resource (SRS-Resource) signaling is configured by an SRS Configuration (SRS-Config).

43. The method according to claim 30, wherein For multiple triggering states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, it is configured by an aperiodic SRS resource trigger and / or an aperiodic SRS resource trigger list in an SRS Resource Set Information Element (SRS-ResourceSet IE). The aperiodic SRS resource trigger is used to configure one triggering state among multiple non-zero triggering states, and the aperiodic SRS resource trigger list is used to configure one or more than one triggering state among the multiple non-zero triggering states.

44. The method according to claim 43, wherein The value of the aperiodic SRS resource trigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS triggering states; the value of each element in the aperiodic SRS resource trigger list is an integer from 1 to N - 1.

45. The method according to claim 44, wherein N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

46. The method according to claim 30, wherein Each SRS resource group of each of the at least one second cell is configured with at least one time slot offset; the method includes: Determine a second time slot based on a time slot offset k corresponding to an SRS resource set of a second cell among the first time slot and the at least one second cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the one second cell is the SRS resource set corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; On the second time slot of the one second cell, receive the SRS corresponding to the SRS resource set of the one second cell.

47. The method according to claim 46, characterized in that, Each SRS resource set of each second cell among the at least one second cell is configured with multiple time slot offsets, and the time slot offset k corresponding to the SRS resource set of the one second cell is the activated time slot offset among the multiple time slot offsets.

48. The method according to claim 46, characterized in that, Each SRS resource set of each second cell among the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k.

49. The method according to claim 46, wherein The second time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

50. The method according to claim 30, wherein The SRS resource sets of different cells among the first cell and the at least one second cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

51. The method according to claim 50, characterized in that, The SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

52. The method according to claim 50, characterized in that, For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one second cell, configure through the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

53. The method according to claim 52, characterized in that, The value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

54. The method according to claim 53, wherein The N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

55. The method according to claim 50, wherein Each SRS resource in the SRS resource set of each second cell among the at least one second cell is configured with at least one time slot offset; the method further includes: Determine a third time slot based on a time slot offset k' corresponding to the sounding reference signal (SRS) resources in the SRS resource set of a second cell among the at least one second cell and the first time slot, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the second cell is the SRS resource set corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; On the third time slot of the second cell, receive the SRS corresponding to the SRS resources in the SRS resource set of the second cell; 56. The method according to claim 55, wherein Each SRS resource set of each of the at least one second cell is configured with a plurality of time slot offsets, and the time slot offset k' corresponding to the SRS resources in the SRS resource set of the second cell is the activated time slot offset among the plurality of time slot offsets; 57. The method according to claim 55, characterized in that, Each SRS resource set of each of the at least one second cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'; 58. The method according to claim 55, wherein The third time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS; 59. A wireless communication method, characterized in that, Includes: Receive second indication information, where the second indication information is used to indicate that the sounding reference signal (SRS) on the first cell can be triggered by aperiodic SRS trigger signaling on at least one third cell; Wherein, the second indication information indicates the at least one third cell through an indication field in the radio resource control (RRC) signaling. The aperiodic SRS trigger signaling on the at least one third cell is used to trigger the SRS on the first cell. If the value corresponding to the indication field is a preset value, the at least one third cell is all active cells; The method further includes: Receive a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell; Wherein, the SRS resource sets of different cells among the first cell and the at least one third cell are configured through different SRS resource set SRS-ResourceSet signaling, and the SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured through different SRS resource SRS-Resource signaling. Wherein, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources; 60. The method according to claim 59, wherein, The second indication information is carried by a fourth radio resource control (RRC) signaling, and the fourth RRC signaling is configured through any one of the following: SRS configuration SRS-Config; Serving cell configuration ServingCellConfig; Special cell configuration SpCellConfig; Secondary cell configuration SCellConfig; Serving cell shared configuration ServingCellConfigCommon; Uplink configuration UplinkConfig; Bandwidth part uplink BWP-Uplink; Bandwidth Part Shared Uplink BWP - UplinkCommon; Bandwidth Part Dedicated Uplink BWP - UplinkDedicated; or SRS Resource Set SRS - ResourceSet.

61. The method according to claim 59, characterized in that, If the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the second cell group.

62. The method according to claim 61, wherein The maximum number of cells in the second cell group is 2, 4, 8, or 32.

63. The method according to claim 59, wherein If the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is the first cell and all active cells in the second cell group.

64. The method according to claim 63, wherein The maximum number of cells in the second cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

65. The method according to claim 61, wherein, The value corresponding to the indication field indicates the second cell group by means of a bitmap or a cell identifier.

66. The method according to claim 59, characterized in that, The SRS Resource Set SRS - ResourceSet signaling or the SRS Resource SRS - Resource signaling is configured by the SRS Configuration SRS - Config.

67. The method according to claim 59, wherein For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, it is configured by the aperiodic SRS resource trigger aperiodicSRS - ResourceTrigger and / or the aperiodic SRS resource trigger list aperiodicSRS - ResourceTriggerList in the SRS resource set cell SRS - ResourceSet IE. The aperiodicSRS - ResourceTrigger is used to configure one trigger state among multiple non - zero trigger states, and the aperiodicSRS - ResourceTriggerList is used to configure one or more than one trigger state among the multiple non - zero trigger states.

68. The method according to claim 67, wherein The value of the aperiodicSRS - ResourceTrigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS - ResourceTriggerList is an integer from 1 to N - 1.

69. The method according to claim 68, characterized in that, N is greater than or equal to 4; if N is greater than 4, N is indicated by the network device to the terminal device, or N is determined based on the capabilities reported by the terminal device to the network device.

70. The method according to claim 59, wherein The SRS resource set of the first cell is configured with at least one time slot offset; the method further includes: Determining a fourth time slot based on the first time slot and the time slot offset k corresponding to the SRS resource set of the first cell. The first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; On the fourth time slot of the first cell, sending the SRS corresponding to the SRS resource set of the first cell.

71. The method according to claim 70, characterized in that, The SRS resource set of the first cell is configured with multiple slot offsets, and the slot offset k corresponding to the SRS resource set of the first cell is the activated slot offset among the multiple slot offsets.

72. The method according to claim 70, wherein The SRS resource set of the first cell is configured with one slot offset, and the one slot offset is the slot offset k.

73. The method according to claim 70, wherein The fourth slot is the valid slot after the first slot, and the valid slot is the slot available for transmitting SRS.

74. The method according to claim 59, characterized in that, The SRS resource sets of different cells in the first cell and the at least one third cell are configured by different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured by different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

75. The method according to claim 74, characterized in that, The SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

76. The method according to claim 74, characterized in that, For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, they are configured by the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

77. The method according to claim 76, wherein The value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

78. The method according to claim 77, characterized in that, The N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

79. The method according to claim 74, characterized in that, The SRS resources in the SRS resource set of the first cell are configured with at least one slot offset; the method further includes: Determine the fifth slot based on the first slot and the slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell, where the first slot is the slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; On the fifth slot of the first cell, transmit the SRS corresponding to the SRS resources in the SRS resource set of the first cell.

80. The method according to claim 79, characterized in that, The SRS resources in the SRS resource set of the first cell are configured with multiple slot offsets, and the slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell is the activated slot offset among the multiple slot offsets.

81. The method according to claim 79, characterized in that, The SRS resource set of the first cell is configured with one slot offset, and the one slot offset is the slot offset k'.

82. The method according to claim 79, characterized in that, The fifth slot is the valid slot after the first slot, and the valid slot is the slot available for transmitting SRS.

83. A wireless communication method, characterized in that, Including: Send a second indication message, where the second indication message is used to indicate that the sounding reference signal (SRS) on a first cell can be triggered by an aperiodic SRS triggering signaling on at least one third cell; Wherein, the second indication message indicates the at least one third cell through an indication field in an RRC signaling, where the aperiodic SRS triggering signaling on the at least one third cell is used to trigger the SRS on the first cell; wherein, if the value corresponding to the indication field is a preset value, the at least one third cell is all active cells; The method further includes: Send a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell; Wherein, the SRS resource sets of different cells among the first cell and the at least one third cell are configured through different SRS resource set (SRS-ResourceSet) signaling, and the SRS resources in different SRS resource sets among the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured through different SRS resource (SRS-Resource) signaling; wherein, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

84. The method according to claim 83, wherein The second indication message is carried by a fourth radio resource control (RRC) signaling, and the fourth RRC signaling is configured by any one of the following: SRS configuration (SRS-Config); Serving cell configuration (ServingCellConfig); Special cell configuration (SpCellConfig); Secondary cell configuration (SCellConfig); Serving cell shared configuration (ServingCellConfigCommon); Uplink configuration (UplinkConfig); Bandwidth part uplink (BWP-Uplink); Bandwidth part shared uplink (BWP-UplinkCommon); Bandwidth part dedicated uplink (BWP-UplinkDedicated); Or SRS resource set (SRS-ResourceSet).

85. The method according to claim 83, wherein If the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the second cell group.

86. The method according to claim 85, characterized in that, The maximum number of cells in the second cell group is 2, 4, 8, or 32.

87. The method according to claim 83, characterized in that, If the value corresponding to the indication field is used to indicate a second cell group, the at least one third cell is all active cells in the first cell and the second cell group.

88. The method according to claim 87, characterized in that The maximum number of cells in the second cell group is 1, 2, 3, 4, 7, 8, 31, or 32.

89. The method according to claim 85, characterized in that, The value corresponding to the indication field indicates the second cell group through a bitmap or a cell identifier.

90. The method according to claim 83, characterized in that, The SRS resource set (SRS-ResourceSet) signaling or the SRS resource (SRS-Resource) signaling is configured by an SRS configuration (SRS-Config).

91. The method according to claim 83, characterized in that, For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, configure through the aperiodic SRS resource trigger aperiodicSRS-ResourceTrigger and / or the aperiodic SRS resource trigger list aperiodicSRS-ResourceTriggerList in the SRS resource set cell SRS-ResourceSet IE. The aperiodicSRS-ResourceTrigger is used to configure one trigger state among multiple non-zero trigger states, and the aperiodicSRS-ResourceTriggerList is used to configure one or more than one trigger state among the multiple non-zero trigger states.

92. The method according to claim 91, wherein The value of the aperiodicSRS-ResourceTrigger is an integer from 1 to N - 1, where N represents the number of aperiodic SRS trigger states; the value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N - 1.

93. The method according to claim 92, characterized in that, The N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device. The method according to claim 83, characterized in that, The SRS resource set of the first cell is configured with at least one time slot offset; the method further includes: Determine a fourth time slot based on the first time slot and the time slot offset k corresponding to the SRS resource set of the first cell. The first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to the first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling. Receive the SRS corresponding to the SRS resource set of the first cell on the fourth time slot of the first cell.

95. The method according to claim 94, wherein The SRS resource set of the first cell is configured with multiple time slot offsets, and the time slot offset k corresponding to the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

96. The method according to claim 95, characterized in that, The SRS resource set of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k.

97. The method according to claim 94, wherein The fourth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

98. The method according to claim 83, characterized in that The SRS resource sets of different cells in the first cell and the at least one third cell are configured through different SRS-Pos resource set version 16 SRS-PosResourceSet-r16 signaling, and the SRS resources of different SRS resource sets in the SRS resource sets of the first cell and the at least one third cell are configured through different SRS Pos resources version 16 SRS-PosResource-r16 signaling.

99. The method according to claim 98, characterized in that The SRS-PosResourceSet-r16 signaling and SRS-PosResource-r16 are configured by SRS configuration SRS-Config.

100. The method according to claim 98, characterized in that, For multiple trigger states corresponding to the SRS resource set of the first cell and the SRS resource sets of the at least one third cell, it is configured through the aperiodic SRS resource trigger list version 16 aperiodicSRS-ResourceTriggerList-r16 in the SRS-PosResourceSet-r16.

101. The method according to claim 100, characterized in that, The value of each element in the aperiodicSRS-ResourceTriggerLis is an integer from 1 to N-1; the N represents the number of aperiodic SRS trigger states.

102. The method according to claim 101, characterized in that, The N is greater than or equal to 4; if N is greater than 4, the N is indicated by the network device to the terminal device, or the N is determined based on the capabilities reported by the terminal device to the network device.

103. The method according to claim 98, characterized in that, The SRS resources in the SRS resource set of the first cell are configured with at least one time slot offset; the method further includes: Determining a fifth time slot based on a first time slot and a time slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell, where the first time slot is the time slot where the aperiodic SRS trigger signaling is located, the SRS resource set of the first cell is the SRS resource set corresponding to a first value, and the first value is the value of the trigger state in the aperiodic SRS trigger signaling; Receiving, on the fifth time slot of the first cell, the SRS corresponding to the SRS resources in the SRS resource set of the first cell.

104. The method according to claim 103, characterized in that, The SRS resources in the SRS resource set of the first cell are configured with multiple time slot offsets, and the time slot offset k' corresponding to the SRS resources in the SRS resource set of the first cell is the activated time slot offset among the multiple time slot offsets.

105. The method according to claim 103, characterized in that, The SRS resource set of the first cell is configured with one time slot offset, and the one time slot offset is the time slot offset k'.

106. The method according to claim 103, characterized in that, The fifth time slot is a valid time slot after the first time slot, and the valid time slot is a time slot available for transmitting SRS.

107. A terminal device, characterized in that, It includes: A receiving unit, configured to receive first indication information, where the first indication information is used to indicate that the aperiodic sounding reference signal SRS trigger signaling on the first cell is used to trigger the SRS on at least one second cell; wherein, the first indication information indicates the at least one second cell through an indication field in the RRC signaling, where the aperiodic SRS trigger signaling on the first cell is used to trigger the SRS on the at least one second cell; wherein, if the value corresponding to the indication field is a preset value, the at least one second cell is all active cells; The receiving unit is further configured to: Receive a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell; Among them, SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS resource set SRS-ResourceSet signaling, and SRS resources in different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS resource SRS-Resource signaling; among them, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

108. A network device, characterized in that, Including: A sending unit, configured to send first indication information, where the first indication information is used to indicate that an aperiodic sounding reference signal SRS triggering signaling on a first cell is used to trigger SRS on at least one second cell; among them, the first indication information indicates the at least one second cell through an indication field in RRC signaling, where the aperiodic SRS triggering signaling on the first cell is used to trigger SRS on the at least one second cell; among them, if a value corresponding to the indication field is a preset value, the at least one second cell is all active cells; The sending unit is further configured to: Send a third RRC signaling, where the third RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one second cell; Among them, SRS resource sets of different cells in the first cell and the at least one second cell are configured by different SRS resource set SRS-ResourceSet signaling, and SRS resources in different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one second cell are configured by different SRS resource SRS-Resource signaling; among them, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

109. A terminal device, characterized in that, Including: A receiving unit, configured to receive second indication information, where the second indication information is used to indicate that a sounding reference signal SRS on a first cell can be triggered by an aperiodic SRS triggering signaling on at least one third cell; among them, the second indication information indicates the at least one third cell through an indication field in RRC signaling, where the aperiodic SRS triggering signaling on the at least one third cell is used to trigger SRS on the first cell; among them, if a value corresponding to the indication field is a preset value, the at least one third cell is all active cells; The receiving unit is further configured to: Receive a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell; Among them, the SRS resource sets of different cells in the first cell and the at least one third cell are configured by different SRS resource set SRS-ResourceSet signaling, and the SRS resources in different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured by different SRS resource SRS-Resource signaling; among them, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

110. A network device, characterized in that, It includes: A sending unit, configured to send second indication information, where the second indication information is used to indicate that the sounding reference signal SRS on the first cell can be triggered by an aperiodic SRS trigger signaling on at least one third cell; among them, the second indication information indicates the at least one third cell through an indication field in the RRC signaling, where the aperiodic SRS trigger signaling on the at least one third cell is used to trigger the SRS on the first cell; among them, if the value corresponding to the indication field is a preset value, the at least one third cell is all active cells. The sending unit is further configured to: Send a fifth RRC signaling, where the fifth RRC signaling is used to configure at least one cell, and the at least one cell includes the first cell and the at least one third cell; Among them, the SRS resource sets of different cells in the first cell and the at least one third cell are configured by different SRS resource set SRS-ResourceSet signaling, and the SRS resources in different SRS resource sets in the SRS resource set of the first cell and the SRS resource sets of the at least one third cell are configured by different SRS resource SRS-Resource signaling; among them, the SRS resource sets are all aperiodic SRS resource sets, and the SRS resources are all aperiodic SRS resources.

111. A terminal device, characterized in that, It includes: A processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 29.

112. A network device, characterized in that, It includes: A processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 30 to 58.

113. A terminal device, characterized in that, It includes: A processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 59 to 82.

114. A network device, characterized in that, It includes: A processor, a memory, and a transceiver, where the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 83 to 106.

115. A chip, characterized in that, It includes: A processor for calling and running a computer program from a memory, such that a device installed with the chip executes the method according to any one of claims 1 to 29 or the method according to any one of claims 89 to 82.

116. A computer-readable storage medium, characterized in that, For storing a computer program, the computer program causing a computer to execute the method according to any one of claims 30 to 58 or the method according to any one of claims 83 to 106.

117. A computer program product, characterized in that, Comprising computer program instructions, the computer program instructions causing a computer to execute the method according to any one of claims 30 to 58 or the method according to any one of claims 83 to 106.

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