CN117643076A

CN117643076A - User equipment, base station and wireless communication method for SRS transmission

Info

Publication number: CN117643076A
Application number: CN202180100386.1A
Authority: CN
Inventors: 黎添; 生嘉
Original assignee: Huizhou TCL Cloud Internet Corp Technology Co Ltd
Current assignee: Huizhou TCL Cloud Internet Corp Technology Co Ltd
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2024-03-01
Also published as: WO2023279402A1

Abstract

The present invention provides a User Equipment (UE), a base station, and a wireless communication method for sounding reference signal (sounding reference signal, SRS) transmission. The wireless communication method executed by the UE comprises the steps that a base station configures SRS resource configuration and/or SRS resource set configuration; and applying, by the UE, SRS transmissions, wherein the UE is equipped with one or more panel entities and the SRS transmissions include an association between the panel entities and SRS resources, a spatial relationship of semi-persistent (SP) SRS transmissions, and/or a spatial relationship of Aperiodic (AP) SRS transmissions. This may solve the problems in the prior art, provide an association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

Description

User equipment, base station and wireless communication method for SRS transmission

Technical Field

The present invention relates to the field of wireless communication systems, and in particular, to a User Equipment (UE), a base station, and a wireless communication method for transmitting a sounding reference signal (sounding reference signal, SRS). Furthermore, the present invention relates to wireless communication systems operating in multiple-input multiple-output (multiple input multiple output, MIMO) systems, and more particularly, it is an object of the present invention to provide improvements in spatial relationship for SRS transmission. The present invention proposes some methods that are of particular interest for enhancing the support of spatial relationships for SRS transmissions.

Background

Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These wireless communication systems are capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (fourth generation, 4G) systems such as long term evolution (long term evolution, LTE) systems and fifth generation (5G) systems, which may be referred to as New Radio (NR) systems. A wireless multiple-access communication system may include multiple base stations or network access nodes, each supporting communication for multiple communication devices, which may be otherwise referred to as User Equipment (UEs). The wireless communication network may include base stations capable of supporting communication for the UE. The UE may communicate with the base station via Downlink (DL) and Uplink (UL). DL refers to the communication link from a base station to a UE, and UL refers to the communication link from a UE to a base station.

In order to take advantage of multipath propagation, MIMO is a method of multiplying radio link capacity using multiple transmit and receive antennas. MIMO refers to a practical technique for simultaneously transmitting and receiving multiple data signals on the same wireless channel by deploying multiple antennas at the transmitter and receiver, which greatly improves the performance of spectral efficiency.

Multiple panels are implemented on the UE and one or more panel entities may be activated at a time, if one or more panel entities are used to transmit sounding reference signals (sounding reference signal, SRS), then the alignment of the panel entities between the base station and the UE for transmitting SRS needs to be determined.

Accordingly, there is a need for a User Equipment (UE), a base station, and a wireless communication method that can solve the problems in the prior art, provide association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

Disclosure of Invention

The present invention aims to provide a User Equipment (UE), a base station and a wireless communication method for sounding reference signal (sounding reference signal, SRS) transmission, which can solve the problems in the prior art, provide association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

In a first aspect of the present invention, a wireless communication method for SRS transmission performed by a UE includes configuring SRS resource configuration and/or SRS resource set configuration by a base station; and applying, by the UE, SRS transmissions, wherein the UE is equipped with one or more panel entities and the SRS transmissions include an association between the panel entities and SRS resources, a spatial relationship of semi-persistent (SP) SRS transmissions, and/or a spatial relationship of Aperiodic (AP) SRS transmissions.

In a second aspect of the present invention, a wireless communication method for SRS transmission performed by a base station includes configuring an SRS resource configuration and/or an SRS resource set configuration to a UE and controlling the UE to apply SRS transmission, wherein the UE is equipped with one or more panel entities and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of SP SRS transmission, and/or a spatial relationship of AP SRS transmission.

In a third aspect of the present invention, a User Equipment (UE) comprises: a memory, a transceiver, and a processor are coupled to the memory and the transceiver. The processor is configured to configure SRS resource configuration and/or SRS resource set configuration by a base station. The processor is configured to apply SRS transmissions, wherein the UE is equipped with one or more panel entities, and the SRS transmissions include associations between the panel entities and SRS resources, spatial relationships of semi-persistent (SP) SRS transmissions, and/or spatial relationships of Aperiodic (AP) SRS transmissions.

In a fourth aspect of the present invention, a base station includes: a memory, a transceiver, and a processor are coupled to the memory and the transceiver. The processor is configured to configure SRS resource configuration and/or SRS resource set configuration to a UE and control the UE to apply SRS transmission, wherein the UE is equipped with one or more panel entities and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of SP SRS transmission, and/or a spatial relationship of AP SRS transmission.

In a fifth aspect of the invention, a non-transitory machine-readable storage medium having instructions stored thereon, which when executed by a computer, cause the computer to perform the above-described method.

In a sixth aspect of the present application, there is provided a chip comprising a processor configured to invoke and run a computer program stored in a memory to cause a device on which the chip is mounted to perform the above method.

In a seventh aspect of the present application, a computer readable storage medium is provided, storing a computer program, wherein the computer program causes a computer to perform the above method.

In an eighth aspect of the present application, a computer program product is provided, comprising a computer program, wherein the computer program causes a computer to perform the above method.

In a ninth aspect of the present application, a computer program is provided, which causes a computer to perform the above method.

Drawings

In order to more clearly illustrate the embodiments of the present invention or related art, the drawings in the embodiments are briefly described below. It is evident that the figures are only some embodiments of the invention, from which a person skilled in the art can obtain other figures without paying attention.

Fig. 1 is a block diagram of one or more User Equipments (UEs) and a base station (e.g., a gNB) communicating in a communication network system in accordance with an embodiment of the invention.

Fig. 2 is a flowchart illustrating a wireless communication method performed by a UE for sounding reference signal (sounding reference signal, SRS) transmission according to an embodiment of the present invention.

Fig. 3 is a flowchart illustrating a wireless communication method for SRS transmission performed by a base station according to an embodiment of the present invention.

Fig. 4 is a diagram illustrating an example of multi-TRP/panel based SRS transmission according to an embodiment of the present invention.

Fig. 5 is a diagram illustrating an example of single TRP/panel based SRS transmission according to an embodiment of the present invention.

Fig. 6 is a schematic diagram illustrating an example of applying UL TCI based only on DCI application time according to an embodiment of the present invention.

Fig. 7 is a schematic diagram showing an example of applying UL TCI based on only MAC CE activation time according to an embodiment of the present invention.

Fig. 8 is a schematic diagram illustrating an example of applying UL TCI based on a larger value of DCI application time according to an embodiment of the present invention.

Fig. 9 is a diagram illustrating an example of applying a UL TCI based on a larger value of a MAC CE activation time according to an embodiment of the present invention.

Fig. 10 is a diagram illustrating an example of applying a spatial relationship based on the latest DCI according to an embodiment of the present invention.

Fig. 11 is a schematic diagram showing an example of applying a spatial relationship based on MAC CE according to an embodiment of the present invention.

Fig. 12 is a diagram illustrating an example of applying a spatial relationship based on the latest DCI according to an embodiment of the present invention.

Fig. 13 is a schematic diagram showing an example of applying a spatial relationship based on the latest MAC CE according to an embodiment of the present invention.

Fig. 14 is a schematic diagram showing an example of SP SRS activation/deactivation MAC CE according to an embodiment of the present invention.

Fig. 15 is a schematic diagram showing an example of SP SRS activation/deactivation MAC CE according to an embodiment of the present invention.

Fig. 16 is a diagram illustrating an example of applying spatial relationships after a MAC CE activation time according to an embodiment of the present invention.

Fig. 17 is a schematic diagram showing an example of applying a spatial relationship without a MAC CE update command according to an embodiment of the present invention.

Fig. 18 is a block diagram of a wireless communication system according to an embodiment of the present invention.

Detailed Description

The technical matters, structural features, achieved objects and effects of the embodiments of the present invention will be described in detail with reference to the accompanying drawings. In particular, the terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

For the Rel-17 unified TCI framework, TCI may be dynamically indicated by DCI or MAC CE. Regarding UL TCI status, UL TCI provides a source reference for determining UL TX spatial filter UL channels, where UL TCI may be a joint TCI status and a separate UL TCI status. For the spatial relationship of the SP SRS in Rel-15/16, this is indicated by the SP SRS activation/deactivation MAC CE. Therefore, to follow the Rel-17 unified TCI framework, the spatial relationship of SPs needs to be designed. In Rel-15/16, the spatial relationship of the AP SRS resources may be updated by the enhanced SP/AP SRS spatial relationship indication MAC CE. In the Rel-17 unified TCI framework, UL TCI may be dynamically changed by DCI or MAC CE. Therefore, in order to apply the relationship from UL TCI, it is necessary to design an AP SRS trigger mechanism and a spatial relationship applied to the AP SRS.

In the RAN1#103-e conference, five use cases are discussed with respect to fast upstream panel selection, the detailed protocol is as follows: in Rel-17 enhancements for facilitating fast uplink panel selection, the following use cases are assumed: mpe mitigation. Ue power saving. Ul interference management. 4. Different configurations across the panel are supported. Ul mTRP.

In the RANs 1#103-e conference, UL TCI may be carried by DCI or MAC CE, and the specific protocols are as follows: beam indication signaling medium supporting joint or separate DL/UL beam indication in rel.17 unified TCI framework: l1-based beam indication using at least UE-specific (unicast) DCI is supported to indicate joint or separate DL/UL beam indication from active TCI state. Existing DCI formats 1_1 and 1_2 are reused for beam indication. The mechanism that the UE acknowledges the beam indicating that the decoding was successful is supported. The ACK/NAK of PDSCH scheduled by DCI carrying beam indication may also be used as ACK of DCI. FFS (FFS): whether any additional specification support is required. Similar to rel.15/16, support for activation of one or more TCI states by MAC CE: the active TCI state is applied at least for a single active TCI state. The content of the MAC CE is determined from the results of problem 1. FFS (FFS): if supported, the TCI state is defaulted when the MAC CE activates multiple TCI states. Note that: there is no impact on the support of single or multiple TRPs. FFS (FFS): additional enhancement functions, such as L1-based beam indication with group common DCI. FFS (FFS): the rel.17 beam indication may also apply to beam indications for a single channel (e.g., PDSCH only, single core) or a subset of channels. FFS (FFS): other detailed information about extending support based on L1 beam indication when configuring separate UL (with DL) common beam indications.

To address the potential problem of spatial relationships being applied to SRS transmission, some embodiments of the present invention propose exemplary methods and provide a framework. It is an object of some embodiments of the invention to provide an improvement of the spatial relationship of SRS transmissions. The present invention proposes some methods that are of particular interest for enhancing the support of spatial relationships for SRS transmissions.

Fig. 1 illustrates that in some embodiments, one or more User Equipment (UE) 10 and a base station (e.g., gNB) 20 are provided for communicating in a communication network system 30 in accordance with embodiments of the invention. The communication network system 30 includes one or more UEs 10 and a base station 20. One or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13. The base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 12 and the transceiver 13. The processor 11 or 21 may be configured to implement the proposed functions, processes and/or methods described in the present specification. The radio interface protocol layer may be implemented in the processor 11 or 21. The memory 12 or 22 is operatively coupled to the processor 11 or 21 and stores various information to operate the processor 11 or 21. The transceiver 13 or 23 is operatively coupled to the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives radio signals.

The processor 11 or 21 may include an application-specific integrated circuit (ASIC), other chipset, logic circuit, and/or data processing device. The memory 12 or 22 may include read-only memory (ROM), random-access memory (random access memory, RAM), flash memory, memory cards, storage media, and/or other storage devices. The transceiver 13 or 23 may include baseband circuitry to process radio frequency signals. When the embodiments are implemented in software, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. These modules may be stored in the memory 12 or 22 and executed by the processor 11 or 21. The memory 12 or 22 may be implemented within the processor 11 or 21 or external to the processor 11 or 21, in which case the memory 12 or 22 can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.

In some embodiments, the processor 11 is configured to configure SRS resource configuration and/or SRS resource set configuration by the base station 20. The processor 11 is configured to apply SRS transmissions, wherein the UE is equipped with one or more panel entities and the SRS transmissions include associations between the panel entities and SRS resources, spatial relationships of semi-persistent (SP) SRS transmissions, and/or spatial relationships of Aperiodic (AP) SRS transmissions. This may solve the problems in the prior art, provide an association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

In some embodiments, the processor 21 is configured to configure SRS resource configuration and/or SRS resource set configuration to a UE 10 and to control the UE 10 to apply SRS transmission, wherein the UE 10 is equipped with one or more panel entities and the SRS transmission comprises an association between the panel entities and SRS resources, a spatial relationship of SP SRS transmission, and/or a spatial relationship of AP SRS transmission. This may solve the problems in the prior art, provide an association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

Fig. 2 illustrates a wireless communication method 200 for sounding reference signal (sounding reference signal, SRS) transmission performed by a UE in accordance with an embodiment of the present invention. In some embodiments, the method 200 includes: operation 202, configuring, by a base station, an SRS resource configuration and/or an SRS resource set configuration, and operation 204, applying, by the UE, an SRS transmission, wherein the UE is equipped with one or more panel entities, and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of semi-persistent (SP) SRS transmissions, and/or a spatial relationship of Aperiodic (AP) SRS transmissions. This may solve the problems in the prior art, provide an association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

Fig. 3 illustrates a wireless communication method 300 performed by a base station for sounding reference signal (sounding reference signal, SRS) transmission, according to an embodiment of the present invention. In some embodiments, the method 300 includes: operation 302 configures an SRS resource configuration and/or an SRS resource set configuration to a UE, and operation 304 controls the UE to apply SRS transmission, wherein the UE is equipped with one or more panel entities and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of SP SRS transmission, and/or a spatial relationship of AP SRS transmission. This may solve the problems in the prior art, provide an association between a UE panel entity and SRS resources, provide a spatial relationship for SP SRS transmission, provide a spatial relationship for AP SRS transmission, and/or provide good communication performance.

Fig. 4 shows an example of multi-TRP/panel based SRS transmission according to an embodiment of the present invention. Fig. 4 illustrates that in some embodiments, for a UE operating with multi-TRP/panel transmission in NR, SRS may be transmitted to different TRPs at different transmission opportunities such that the UE has multiple opportunities to transmit SRS. Further, multiple SRS may be transmitted from multiple panels to multiple TRPs at the same time. For example, the first SRS and the second SRS may be transmitted from the first panel and the second panel to the first TRP and the second TRP, respectively. SRS transmissions for different TRPs may avoid possible blocking between any TRP and the UE. Therefore, transmitting SRS to a plurality of TRPs can not only enhance reliability but also improve coverage.

Fig. 5 shows an example of single TRP/panel based SRS transmission according to an embodiment of the present invention. Fig. 5 illustrates that in some embodiments, for a UE operating in a single TRP/panel transmission in NR, SRS may be transmitted from the panel to the TRP. In this way, only one panel is activated, and transmission power can be saved. In addition, it may simplify detection in the gNB. For the SP SRS transmission in Rel-15/16, it is activated or deactivated by the SP SRS activation/deactivation MAC CE. Regarding SP SRS MAC CE activation time, when the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command, it may be possible from slotThe first time slot thereafter starts to apply the spatial relationship of the SP SRS transmission, wherein +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH. For tables 1 and 2, since the duration of the frame is 10 ms and the number of slots of SP SRS MACCE activation time is at least +.>It can be inferred that the MAC CE activation time is 3ms.

TABLE 1 OFDM symbol count per slot, per frame slot, and per subframe slot for normal cyclic prefix

TABLE 2 number of OFDM symbols per slot, per frame slot and per subframe slot for extended cyclic prefix

Regarding the application time of the DCI-based beam indication, the first slot of at least X ms or Y symbols after the last symbol of the acknowledgement of the joint or separate UL beam indication is agreed, where the beam application time value (e.g., X/Y value) may be configured by the gNB based on UE capabilities. In this way, the application time ensures that both the gNB and the UE can switch beams after sending/receiving acknowledgements.

In some embodiments, an association between a UE panel entity and SRS resources is provided. Since multiple panels are implemented on the UE and one or more panel entities may be activated at a time, if SRS is transmitted using one or more panel entities, the alignment of the panel entities used to transmit SRS between the gNB and the UE may be determined. In some embodiments, several exemplary methods are presented to define the association between a UE panel entity and SRS resources.

In some embodiments, if the panel entity ID is included in the SRS resource configuration or SRS resource set configuration, the association between the UE panel entity and the SRS resource or SRS resource set may be explicitly determined. In this way, when the UE is ready to transmit a given SRS resource, the UE selects a panel for the SRS transmission based on the panel entity ID included in the SRS resource configuration or the SRS resource set configuration. Specifically, the SRS resource configuration includes a panel entity Index (ID), and the UE selects a corresponding panel entity associated with the panel entity ID for SRS transmission based on the panel entity ID. Thus, it is simple to indicate the association between the UE panel entity and SRS resources.

In some scenarios, only one SRS resource set is configured in the higher layer parameters, e.g., based on single TRP transmissions. Since there may be multiple panels on the UE, different SRS resources in the SRS resource set may be associated with different panels. In this case, the panel entity ID may be included in an SRS Resource configuration (e.g., higher layer parameters SRS-Resource or SRS-PosResource-r 16) to indicate an association between the UE panel entity and the SRS Resource. Specifically, the SRS resource configuration includes one SRS resource set, SRS resources in the SRS resource set are associated with the panel entity, and a panel entity ID is included in the SRS resource configuration to indicate an association relationship between the panel entity and the SRS resources. It is suggested that if only one SRS Resource set is configured, a panel entity ID may be included in the SRS Resource configuration (e.g., higher layer parameters SRS-Resource or SRS-PosResource-r 16) to indicate an association between the UE panel entity and the SRS Resource. When the UE is ready to transmit a given SRS resource, the UE obtains a panel entity ID from the SRS resource configuration. With the panel entity ID, the UE may select a panel for the corresponding SRS transmission. In some embodiments, the SRS resource configuration includes a set of SRS resources, SRS resources in the set of SRS resources being associated with the panel entity, and the panel entity ID is included in the SRS resource configuration for indicating an association relationship between the panel entity and the SRS resources.

In some embodiments, since multiple SRS resource sets may be configured in higher layer parameters, the association between the UE panel entity and the SRS resources may be designed for each SRS resource set. For multiple panels implemented on a UE, different SRS resource sets may be associated with different panels. In this case, the panel entity ID may be included in an SRS resource set configuration (e.g., higher layer parameters SRS-resource set or SRS-posresource set-r 16) to indicate an association between the UE panel entity and the SRS resource. Specifically, the SRS resource set configuration includes a panel entity Index (ID), and the UE selects a corresponding panel entity associated with the panel entity ID for SRS transmission according to the panel entity ID. It is proposed that if multiple SRS resource sets are configured, a panel entity ID may be included in the SRS resource set configuration (e.g., higher layer parameters SRS-resource set or SRS-posresource set-r 16) to indicate an association between the UE panel entity and the SRS resource. When the UE is ready to transmit SRS resources in a given SRS resource set, the UE obtains a panel entity ID from the SRS resource set configuration. With the panel entity ID, the UE may select a panel for transmitting SRS resources in the corresponding SRS resource set. In some embodiments, the SRS resource set configuration includes an SRS resource set associated with the panel entity, the association between the panel entity and the SRS resource being determined from the SRS resource set, and the panel entity ID is included in the SRS resource set configuration for indicating an association of the panel entity with the SRS resource in the SRS resource set.

In some embodiments, the association between the UE panel entity and the SRS resources may be fixed due to the configuration of multiple SRS resources or SRS resource sets. Thus, when the UE is ready to transmit a given SRS resource, the panel for the SRS transmission may be determined based on a predefined association between the UE panel entity and the SRS resource. Thus, without additional signaling of the panel entity ID, RRC overhead may be reduced. In some embodiments, the association between the panel entity and the SRS resource is predefined and/or fixed.

In some scenarios, only one SRS resource set is configured in the higher layer parameters, e.g., based on single TRP transmissions. Since there are multiple SRS resources configured by higher layer parameters and multiple panels implemented on the UE, the mapping between the UE panel entity and the SRS resources identified by higher layer parameters SRS-resource id or SRS-posresource id-r16 may be fixed. In particular, it is suggested that if only one SRS resource set is configured, the mapping between the UE panel entity and the SRS resources may be fixed, wherein the mapping relationship may be predefined and aligned between the gNB and the UE. Specifically, a first set of SRS resources map to a first panel entity, a second set of SRS resources map to a second panel entity, and so on, wherein a set of SRS resources may include one or more SRS resources identified by high-level parameters SRS-ResourceID or SRS-PosResourceID-r 16. For example, SRS resource #0 and SRS resource #1 are associated with panel entity #0, SRS resource #2 is associated with panel entity #1, and SRS resource #3 is associated with panel entity # 2. When the UE is ready to transmit a given SRS resource, the UE selects a panel entity based on a mapping between the UE panel entity and the SRS resource. With the selected panel entity, the UE may perform SRS transmission. In some embodiments, the SRS resource configuration comprises a set of SRS resources, SRS resources in the set of SRS resources being associated with the panel entity, a mapping relationship between the panel entity and the SRS resources being fixed, wherein a mapping between panel entities and SRS resources is predefined and aligned between a base station and a UE.

In some embodiments, the mapping between the UE panel entity and the SRS resource set identified by the higher layer parameters SRS-ResourceSetId or SRS-PosResourceSetId-r16 may be fixed, as there may be multiple SRS resource sets configured in the higher layer parameters and multiple panels implemented on the UE. It is proposed that if multiple SRS resource sets are configured, the mapping between the UE panel entity and the SRS resource sets may be fixed, wherein the mapping relationship may be predefined and aligned between the gNB and the UE. Specifically, a first set of SRS resource sets is mapped to a first panel entity, a second set of SRS resource sets is mapped to a second panel entity, and so on, wherein a set of SRS resource sets may include one or more SRS resource sets identified by the higher layer parameters SRS-ResourceSetId or SRS-PosResourceSetId-r 16. For example, SRS resource set #0 is associated with panel entity #0, SRS resource set #1 is associated with panel entity #1, and SRS resource set #2 is associated with panel entity # 2. When the UE is ready to transmit SRS resources for a given set of SRS resources, the UE selects a panel entity based on a mapping between the UE panel entity and the set of SRS resources. Using the selected panel entity, the UE may perform SRS transmission using the panel entity. In some embodiments, the SRS resource set configuration comprises an SRS resource set associated with a panel entity, the association between the panel entity and the SRS resource being determined from the SRS resource set, a mapping between the panel entity and the SRS resource set being fixed, wherein the mapping between the panel entity and the SRS resource set is predefined and aligned between the base station and the UE.

In Rel-15/16, when the Resource type (e.g., higher-layer parameter resourceType) in the SRS Resource configuration (e.g., higher-layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", the spatial relationship is provided by a reference signal included in the SP-SRS activation/deactivation MAC CE. For the Rel-17 unified TCI framework, TCI may be indicated by DCI or MAC CE. Regarding UL TCI status, UL TCI provides a source reference for determining UL TX spatial filter UL channels, where UL TCI may be a joint TCI status and a separate UL TCI status. Thus, the spatial relationship of the SP SRS can be designed based on the Rel-17 unified TCI framework. Further, since the MAC CE activation time may not be equal to the application time of the DCI-based beam indication, the spatial relationship derived from UL TCI may be applied to SP SRS under different conditions.

In some embodiments, the UE is configured to determine a first transmission occasion in which the UE applies a spatial relationship of SP SRS transmissions derived from an Uplink (UL) transmission configuration indication (transmission configuration indication, TCI). In some embodiments, the UE determines the first transmission occasion based on a larger value of a downlink control information (downlink control information, DCI) application time, a medium access control (medium access control, MAC) Control Element (CE) activation time, or a DCI application time and a MAC CE activation time.

In some embodiments, if the UE transmits the SP SRS in a spatial relationship from the UL TCI starting from the first SP SRS transmission occasion that satisfies the DCI application time requirement (e.g., X ms or Y symbol), and irrespective of the MAC CE activation time, it may simplify the procedure of applying the UL TCI to the SP SRS transmission. It is proposed that when a Resource type (e.g., higher layer parameter resourceType) in an SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", a first transmission occasion applying a spatial relationship derived from an UL TCI for SP SRS transmission is a first time slot of at least X ms or Y symbols after a last symbol carrying acknowledgement of a PDCCH of joint or separate UL beam indication, wherein the UL TCI is contained in DCI, the DCI in the PDCCH being used to schedule PDSCH carrying SP SRS activated MAC CEs.

Fig. 6 illustrates an example of applying UL TCI based only on DCI application time according to an embodiment of the present invention. Fig. 6 illustrates that in some embodiments, if the first SP SRS transmission occasion to which the spatial relationship from UL TCI is applied is determined based on DCI application time requirements only, and the MAC CE activation time is not considered, the first SP SRS transmission occasion is slot n+tb and the last transmission occasion is slot n+tc. If the UE transmits from the first SP SRS that satisfies the MAC CE activation time (e.g., 3 ms) and does not consider the DCI application time requirement The opportunity starts, the SP SRS is transmitted in a spatial relationship from the UL TCI, and the SP SRS activation command and the first transmission opportunity to apply the spatial relationship from the UL TCI may be aligned. It is proposed that when the Resource type (e.g., higher layer parameter resourceType) in the SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", the first transmission opportunity to apply the spatial relationship derived from the UL TCI for SP SRS transmission is a slotThe first time slot after that, in which the UL TCI is contained in the DCI of the scheduled SP SRS activation MAC CE, and +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

Fig. 7 illustrates an example of applying UL TCI based only on MAC CE activation time according to an embodiment of the present invention. Fig. 7 illustrates that, in some embodiments, if the first SP SRS transmission occasion to which the spatial relationship from the UL TCI is applied is determined based only on the MAC CE activation time requirement, and the DCI application time is not considered, the first SP SRS transmission occasion is slot n+tb and the last transmission occasion is slot n+tc.

In some embodiments, if the first SP SRS transmission opportunity to apply the spatial relationship from the UL TCI is determined based on a larger value of DCI application time and MAC CE activation time, sufficient preparation time may be provided for the UE and the gNB. It is suggested that when a Resource type (e.g., higher layer parameter Resource type) in an SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", if a DCI application time (e.g., X ms) or Y symbol) is not less than a MAC CE activation time (e.g., 3 ms), a first transmission occasion to apply a spatial relationship derived from UL TCI for SP SRS transmission is a first slot of at least X ms or Y symbols after a last symbol of acknowledgement of PDCCH carrying joint or separate UL beam indication, wherein UL TCI is contained in DCI The DCI in the PDCCH is used for scheduling the PDSCH carrying the SP SRS to activate the MAC CE; whereas if the MAC CE activation time (e.g., 3 ms) is greater than the DCI application time (e.g., X ms or Y symbols), the first transmission occasion to apply the spatial relationship derived from UL TCI for SP SRS transmission is a slotThe first time slot after that, in which the UL TCI is contained in the DCI of the scheduled SP SRS activation MAC CE, and +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

Fig. 8 illustrates an example of applying UL TCI based on a larger value of DCI application time according to an embodiment of the present invention. Fig. 9 shows an example of applying a larger value of UL TCI based on MAC CE activation time according to an embodiment of the present invention. Referring to fig. 8 and 9, in some embodiments, the DCI application time is greater than the MAC CE activation time as shown in fig. 8, and the MAC CE activation time is greater than the DCI application time as shown in fig. 9. The first SP SRS transmission occasion to apply UL TCI is slot n+tc and the last transmission occasion is slot n+td.

In some embodiments, the first transmission opportunity to apply the spatial relationship derived from the UL TCI is designed and the last transmission is determined based on the SP SRS deactivation command. The activation time starts from the first transmission occasion of the UE application of the spatial relationship derived from the UL TCI for the SP SRS transmission to the last transmission occasion of the SP SRS transmission. In Rel-15/16, the spatial relationship of the active SP SRS resources remains the same during the activation time. In the Rel-17 unified TCI framework, UL TCI may be dynamically changed by DCI or MAC CE. Thus, two methods can be designed for the spatial relationship applicable to the SP SRS during the activation time. In some embodiments, during the activation time, the UE transmits the SP SRS with a single spatial relationship or flexible spatial relationship derived from the UL TCI indicated in the DCI or MAC CE.

In some embodiments, if a single spatial relationship is used for the active SP SRS resource during the activation time, the design is consistent with existing principles. Since UL TCI may be carried in DCI or MAC CE, the spatial relationship of SP SRS during activation time may be derived from UL TCI in DCI or MAC CE. The UL TCI may simplify the design if it originates from DCI scheduling PDSCH carrying active MAC CE. On the other hand, if UL TCI is derived from the latest DCI satisfying DCI application time, the spatial relationship derived from UL TCI is up-to-date. It is proposed that when a Resource type (e.g., higher layer parameter resourceType) in an SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", a spatial relationship derived from a UL TCI for SP SRS transmission should be applied from a first transmission occasion to a last transmission occasion, wherein the UL TCI is included in DCI and the DCI is used for scheduling a PDSCH carrying an active MAC CE, or the UL TCI is derived from the latest DCI satisfying a DCI application time. More specifically, if the source RS in the UL TCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE should transmit the target SRS resource in the same spatial relationship as the reception of the source RS; whereas if the source RS in UL TCI is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource in the same spatial relationship as that used for transmission of the source RS. As shown in fig. 6, during the activation time of the SP SRS between the first transmission occasion and the last transmission occasion, the UE transmits the SP SRS with a spatial relationship derived from the source RS of the UL TCI in the DCI, which is used to schedule the PDSCH carrying the SP SRS activation MAC CE.

Fig. 10 shows an example of applying a spatial relationship based on the latest DCI according to an embodiment of the present invention. Fig. 10 illustrates that in some embodiments, during the activation time of the SP SRS between the first transmission occasion and the last transmission occasion, the UE transmits the SP SRS (e.g., DCI in slot n+tb-K1) with a spatial relationship derived from the source RS of the UL TCI in the latest DCI. For the case of multi-TRP/panel based SRS transmission shown in fig. 4, the spatial relationship of the SP SRS transmitted from different panels may be different since each link between the UE panel and the TRP corresponds to a separate channel. Accordingly, for multi-TRP/panel based SRS transmission, it is proposed to derive from a source RS of UL TCI corresponding to a first panel (e.g., a first UL TCI) in DCI a spatial relationship of SP SRS transmitted from the first panel and a spatial relationship of SP SRS transmitted from the first panel. The second panel is derived from a source RS of a UL TCI corresponding to the second panel (e.g., a second UL TCI) in the DCI, where the DCI is used to schedule PDSCH carrying SP SRS activated MAC CE or the DCI is the latest DCI satisfying DCI application time; further, from the first transmission occasion to the last transmission occasion, the spatial relationship of the SP SRS transmitted from the first panel and the spatial relationship of the SP SRS transmitted from the second panel should be applied.

More specifically, if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the DCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE shall transmit the target SRS resource from the first panel with the same spatial relationship as that for receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource from the first panel, with the spatial relationship being the same as that used for the transmission of the source RS. In addition, if the source RS in the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the DCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE shall transmit the target SRS resource from the second panel, and its spatial relationship is the same as that used for the reception of the source RS; if the source RS in the UL TCI (e.g., the second UL TCI) corresponding to the second panel is the periodic SRS or the SP SRS, the UE should transmit the target SRS resource from the second panel, and the spatial relationship thereof is the same as that used for transmitting the source RS.

In some embodiments, if the UL TCI is carried in the MAC CE, the UE transmits the SP SRS using a spatial relationship derived from the UL TCI in the MAC CE. It is proposed that when a Resource type (e.g., higher layer parameter resourceType) in an SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", a spatial relationship derived from an UL TCI for SP SRS transmission should be applied from a first transmission occasion to a last transmission occasion, wherein the UL TCI is carried in a MAC CE that satisfies the MAC CE activation time. More specifically, if the source RS in the UL TCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE should transmit the target SRS resource in the same spatial relationship as the reception of the source RS; whereas if the source RS in UL TCI is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource in the same spatial relationship as that used for transmission of the source RS.

Fig. 11 shows an example of applying a spatial relationship based on MAC CE according to an embodiment of the present invention. Fig. 11 illustrates that in some embodiments, during the activation time of the SP SRS between the first transmission occasion and the last transmission occasion, the UE transmits the SP SRS with a spatial relationship derived from the source RS of the UL TCI in the MAC CE. For the case of multi-TRP/panel based SRS transmission shown in fig. 1, the spatial relationship of SP SRS transmitted from different panels may be different as shown in fig. 4. Thus, for multi-TRP/panel based SRS transmission, it is proposed that the spatial relationship of the SP SRS transmitted from the first panel is derived from the source RS of the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the MAC CE, and the spatial relationship of the SP SRS transmitted from the second panel is derived from the source RS of the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the MAC CE; further, from the first transmission occasion to the last transmission occasion, the spatial relationship of the SP SRS transmitted from the first panel and the spatial relationship of the SP SRS transmitted from the second panel should be applied.

More specifically, if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the MAC CE is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE shall transmit the target SRS resource from the first panel with the same spatial relationship as that for receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource from the first panel, with the spatial relationship being the same as that used for the transmission of the source RS. Further, if the source RS in the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the MAC CE is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE shall transmit the target SRS resource from the second panel with the same spatial relationship as that for the reception of the source RS; if the source RS in the UL TCI (e.g., the second UL TCI) corresponding to the second panel is the periodic SRS or the SP SRS, the UE should transmit the target SRS resource from the second panel, and the spatial relationship thereof is the same as that used for transmitting the source RS.

For the Rel-17 unified TCI framework, since TCI is indicated by DCI or MAC CE, the spatial relationship of SP SRS transmissions may change dynamically and it may adapt to the channel. Thus, during activation, the UE may transmit the SP SRS using the flexible spatial relationship derived from the UL TCI. In some embodiments, it is proposed that when a Resource type (e.g., higher layer parameter Resource type) in an SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "semi-persistent", for each SP SRS transmission within an activation time from a first transmission occasion to a last transmission occasion, a spatial relationship derived from a latest UL TCI of the SP SRS transmission should be applied, wherein the UL TCI is contained in a latest DCI satisfying a DCI application time or a latest MAC CE satisfying a MAC CE activation time. Specifically, for the SP SRS transmission of the first transmission occasion, the spatial relationship applicable to the SP SRS transmission may be derived from the UL TCI carried in the DCI of the PDSCH of the scheduled bearer activation MAC CE. More specifically, if the source RS in the UL TCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE should transmit the target SRS resource in the same spatial relationship as the reception of the source RS; whereas if the source RS in UL TCI is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource in the same spatial relationship as that used for transmission of the source RS.

Fig. 12 shows an example of applying a spatial relationship based on the latest DCI according to an embodiment of the present invention. Fig. 12 illustrates that in some embodiments, the UE transmits the SP SRS with a spatial relationship derived from the source RS of the UL TCI in the latest DCI during the activation time of the SP SRS between the first transmission occasion and the last transmission occasion. Fig. 13 shows an example of applying a spatial relationship based on the latest MAC CE, according to an embodiment of the present invention. Fig. 13 illustrates that in some embodiments, during the activation time of the SP SRS between the first transmission occasion and the last transmission occasion, the UE transmits the SP SRS with a spatial relationship derived from the source RS of the UL TCI in the latest MAC CE.

In some embodiments, the spatial relationship of the SP SRS transmitted from different panels may be different for the case of multi-TRP/panel based SRS transmission shown in fig. 4. Thus, for multi-TRP/panel based SRS transmission, it is proposed that for each SP SRS transmission from the first panel within an activation time from the first transmission occasion to the last transmission occasion, a spatial relationship derived from a source RS of UL TCI corresponding to the first panel (e.g., the first UL TCI) is to be applied, wherein UL TCI is included in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time; further, for each SP SRS transmission from the second panel within the activation time from the first transmission opportunity to the last transmission opportunity, a spatial relationship derived from the source RS of UL TCI corresponding to the second panel (e.g., the second UL TCI) is applied, wherein UL TCI is included in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time.

More specifically, if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE shall transmit the target SRS resource from the first panel with the same spatial relationship as that for receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource from the first panel, with the spatial relationship being the same as that used for the transmission of the source RS. Also, if the source RS in the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or SP CSI-RS, the UE shall transmit the target SRS resource from the second panel with the same spatial relationship as that for the reception of the source RS; if the source RS in the UL TCI (e.g., the second UL TCI) corresponding to the second panel is the periodic SRS or the SP SRS, the UE should transmit the target SRS resource from the second panel, and the spatial relationship thereof is the same as that used for transmitting the source RS.

In some embodiments, regarding the design of the SP SRS activation/deactivation MAC CE, since the spatial relationship of the SP SRS transmission may be indicated by DCI or MAC CE, it does not have to carry the resources for spatial relationship derivation of the SP SRS and it carries the SP SRS resource set index to be activated or deactivated. For the case of multi-TRP/panel based SRS transmission shown in fig. 4, a second SP SRS resource set index may be carried in the MAC CE to indicate a second SP SRS transmitted from the second panel.

In some embodiments, the detailed design on the MAC CE has the following fields: cell ID of srs resource set: this field indicates the identity of the serving cell, which contains the activated/deactivated SP SRS resource set. The length of this field is 5 bits. BWP ID for srs resource set: this field indicates BWP, which is a code point of the DCI bandwidth part indicator field, which contains an activated/deactivated SP SRS resource set. The length of this field is 2 bits. SUL: this field indicates whether the MAC CE is suitable for NUL carrier or SUL carrier configuration. This field set to 1 indicates that the SUL carrier configuration is applicable, and set to 0 indicates that the NUL carrier configuration is applicable. Sp SRS resource set ID0: this field indicates the first SP SRS resource set ID identified by SRS-resource estid, which is to be activated or deactivated. For the case of multi-TRP/panel based SRS transmission, this field indicates whether the SP SRS transmitted from the first panel is active or inactive. The length of this field is 4 bits. Sp SRS resource set ID1: for the case of multi-TRP/panel based SRS transmission, this field indicates a second SP SRS resource set ID identified by the SRS-ResourceSetId, which indicates whether the SP SRS transmitted from the second panel is activated or deactivated. The length of this field is 4 bits. a/D: this field indicates whether to activate or deactivate the corresponding SP SRS resource set. This field set to 1 indicates activation, otherwise deactivation. 7.R: the reserved bit is set to 0.

Fig. 14 illustrates an example of SP SRS activation/deactivation MAC CE according to an embodiment of the present invention. Fig. 14 shows that in some embodiments, a MAC CE with a fixed size may provide a generic design for all scenarios if both fields of the SP SRS resource set ID are always present. Fig. 15 illustrates an example of SP SRS activation/deactivation MAC CE according to an embodiment of the present invention. Fig. 15 illustrates that in some embodiments, a MAC CE with a variable size may reduce the MAC CE payload if the second field of the SP SRS resource set ID exists only for multi-TRP/panel based SRS transmissions. In other words, for single panel based SRS transmission, there is only the first field of the SP SRS resource set ID. To achieve this, it has an additional field: this field indicates whether the SP SRS resource set ID1 field exists. If this field is set to 1, there is an SP SRS resource set ID1 field, otherwise there is no.

In some embodiments, applying the spatial relationship for AP SRS transmission by the UE includes triggering, by the UE, AP SRS transmission in the multi-TRP/panel based SRS transmission by adding a field or enhancing a related higher layer parameter.

In Rel-15/16, for single TRP/panel based SRS transmission, the AP SRS is triggered by the SRS request field in DCI format 0_1/0_2/1_1/1_2/2_3. For the case of multi-TRP/panel based SRS transmission, the mechanism should be designed to trigger AP SRS transmission from multiple panels. In some embodiments, two methods are proposed to trigger AP SRS transmission in a multi-TRP/panel based scenario.

In some embodiments, for multi-TRP/panel based SRS transmission, if a second SRS request field is added to trigger AP SRS transmission from a second panel, the AP SRS of both panels may be flexibly triggered. It is suggested that for multi-TRP/panel based SRS transmission, a second SRS request field (e.g., DCI format 0_1/0_2/1_1/1_2/2_3) with 2 bits is added in the DCI to trigger the AP SRS transmission from the second panel. Specifically, the first SRS request field is used to trigger an AP SRS transmission from the first panel and the second SRS request field is used to trigger an AP SRS transmission from the second panel. Regarding the design of the second SRS request field, the mapping between the second SRS request field and the triggered set of AP SRS resources transmitted from the second panel may be as shown in table 3.

Table 3: second SRS request field

In some embodiments, for multi-TRP/panel based SRS transmission, if the existing SRS request field is used and the higher layer parameters of the AP SRS trigger are enhanced to support AP SRS triggers from multiple panels, it reduces DCI overhead and can be easily extended to different numbers of panels. It is proposed that for multi-TRP/panel based SRS transmission, multiple sets of SRS resource sets (e.g. higher layer parameters SRS-resourcesetto addmodlist) are configured in the SRS resource set list, each set of SRS resource sets corresponding to a value of one SRS request field, wherein each set of SRS resource sets in a set corresponds to an AP SRS transmitted by the UE panel and the number of SRS resource sets in a set is equal to the number of panels used for AP SRS transmission and the number of sets is equal to the number of active states indicated by the SRS request field (e.g. 3). For example, if the number of active states is 3 and the number of panels of AP SRS transmission is 2, the mapping between the SRS request field and the triggered AP SRS resource set for each panel may be shown in table 4. For example, if the value of the SRS request field is "10", the SRS resource set #2 for the AP SRS transmitted from the first panel and the SRS resource set #3 for the AP SRS transmitted from the second panel are triggered.

TABLE 4 mapping examples between SRS request field and triggered AP SRS resource set

In Rel-15/16, the spatial relationship of the AP SRS resources may be updated by the enhanced SP/AP SRS spatial relationship indication MAC CE. In the Rel-17 unified TCI framework, UL TCI may be dynamically changed by DCI or MAC CE. Thus, to apply the relationship from UL TCI, two methods can be devised to update the spatial relationship applicable to AP SRS. In some embodiments, the applying of the spatial relationship for the AP SRS transmission by the UE includes updating, by the UE, the spatial relationship for the AP SRS transmission based on or without a MAC CE update command.

In some embodiments, it is consistent with existing principles if the spatial relationship derived from UL TCI can be applied to AP SRS transmission after the MAC CE activation time (e.g., 3 ms). To derive the latest spatial relationship, the UL TCI may be included in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time. It is proposed that when the Resource type (e.g., higher layer parameter resourceType) in SRS Resource configuration (e.g., higher layer parameter SRS-Resource or SRS-PosResource) is set to "aperiodic", the shall be from the slot The first time slot thereafter starts to apply a spatial relationship derived from UL TCI for AP SRS transmission, wherein UL TCI is contained in the latest DCI satisfying DCI application time or the latest MAC CE satisfying MAC CE activation time, and->Is the number of slots per subframe, u is the SCS configuration common control channel (PUCCH) of the subframe and the UE transmits the PUCCH with HARQ-ACK information in slot n corresponding to the PDSCH carrying the MAC CE update command. Specifically, the UL TCI may be carried in DCI triggering the AP SRS. More specifically, if the source RS in the UL TCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE should transmit the target SRS resource in the same spatial relationship as the reception of the source RS; whereas if the source RS in UL TCI is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource in the same spatial relationship as that used for transmission of the source RS.

Fig. 16 shows an example of applying spatial relationships after a MAC CE activation time, according to an embodiment of the present invention. Fig. 16 illustrates that, in some embodiments, after a MAC CE activation time, a UE transmits an AP SRS in slot n+tb with a spatial relationship derived from a source RS of UL TCI in the latest DCI or latest MAC CE satisfying a DCI application time, satisfying the MAC CE activation time. In the case of multi-TRP/panel based SRS transmission, as shown in fig. 4, spatial relationships of SP SRS transmitted from different panels may be different. Thus, for multi-TRP/panel based SRS transmissions, it is suggested that for AP SRS transmissions from the first panel, the response should be from the slot The first time slot thereafter starts to apply a spatial relationship derived from a source RS of UL TCI corresponding to the first panel (e.g., the first UL TCI) contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time; furthermore, for an AP SRS transmission from the second panel, a source RS guide from a UL TCI (e.g., a second UL TCI) corresponding to the second panel should be applied from the first slot after slot n +Spatial relationship->Wherein the UL TCI is contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, and +.>Is the number of slots per subframe, u is the SCS configuration PUCCH of the subframe and the UE transmits the PUCCH with HARQ-ACK information in slot n corresponding to the PDSCH carrying the MAC CE update command. Specifically, the UL TCI may be carried in DCI triggering the AP SRS.

More specifically, if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or SP CSI-RS, the UE shall transmit the target SRS resource from the first panel with the same spatial relationship as that for receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource from the first panel, with the spatial relationship being the same as that used for the transmission of the source RS. Further, if the source RS in the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or SP CSI-RS, the UE shall transmit the target SRS resource from the second panel with the same spatial relationship as that for the reception of the source RS; if the source RS in the UL TCI (e.g., the second UL TCI) corresponding to the second panel is the periodic SRS or the SP SRS, the UE should transmit the target SRS resource from the second panel, and the spatial relationship thereof is the same as that used for transmitting the source RS. Regarding the design of the AP SRS spatial relationship indication MAC CE, the MAC CE design in the above-described embodiment may be multiplexed. In other words, the MAC CE designed in the above embodiment may be used to indicate activation or deactivation of the SP SRS and spatial relationship update of the AP SRS. In addition, if the MAC CE is used to indicate a spatial relationship update of the AP SRS, the MAC entity should ignore the a/D field.

In some embodiments, if the spatial relationship derived from UL TCI is applied to AP SRS transmission without MAC CE update command, which is a straightforward method, the process of AP SRS update spatial relationship can be simplified. To derive the latest spatial relationship, the UL TCI may be included in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time. It is proposed that when a Resource type (e.g., a higher-layer parameter resourceType) in an SRS Resource configuration (e.g., a higher-layer parameter SRS-Resource or SRS-PosResource) is set to "aperiodic", a spatial relationship derived from an UL TCI for AP SRS transmission should be applied after the UE receives DCI triggering the AP SRS, wherein the UL TCI is included in the latest DCI satisfying a DCI application time or the latest MAC CE satisfying a MAC CE activation time. Specifically, the UL TCI may be carried in DCI triggering the AP SRS. More specifically, if the source RS in the UL TCI is an SS/PBCH block or a periodic CSI-RS or an SP CSI-RS, the UE should transmit the target SRS resource in the same spatial relationship as the reception of the source RS; whereas if the source RS in UL TCI is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource in the same spatial relationship as that used for transmission of the source RS.

Fig. 17 shows an example of applying spatial relationships without a MAC CE update command, according to an embodiment of the present invention. Fig. 17 illustrates that in some embodiments, the UE may transmit an AP SRS in slot n+tb with a spatial relationship derived from a source RS of UL TCI in the latest DCI satisfying the DCI application time or a source RS of UL TCI in the latest MAC CE satisfying the MAC CE activation time. In the case of multi-TRP/panel based SRS transmission, as shown in fig. 4, spatial relationships of SP SRS transmitted from different panels may be different. Thus, for multi-TRP/panel based SRS transmission, it is suggested that for AP SRS transmission from the first panel, after the UE receives DCI triggering the AP SRS, a spatial relationship derived from the source RS of UL TCI corresponding to the first panel (e.g., the first UL TCI) should be applied, wherein UL TCI is included in the latest DCI satisfying DCI application time or the latest MAC CE satisfying MAC CE activation time; further, for the AP SRS transmission from the second panel, after the UE receives DCI triggering the AP SRS, a spatial relationship derived from a source RS of UL TCI (e.g., second UL TCI) corresponding to the second panel, which is included in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, should be applied. Specifically, the UL TCI may be carried in DCI triggering the AP SRS.

More specifically, if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or SP CSI-RS, the UE shall transmit the target SRS resource from the first panel with the same spatial relationship as that for receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel (e.g., the first UL TCI) is a periodic SRS or an SP SRS, the UE should transmit the target SRS resource from the first panel, with the spatial relationship being the same as that used for the transmission of the source RS. Further, if the source RS in the UL TCI corresponding to the second panel (e.g., the second UL TCI) in the DCI or MAC CE is an SS/PBCH block or a periodic CSI-RS or SP CSI-RS, the UE shall transmit the target SRS resource from the second panel with the same spatial relationship as that for the reception of the source RS; if the source RS in the UL TCI (e.g., the second UL TCI) corresponding to the second panel is the periodic SRS or the SP SRS, the UE should transmit the target SRS resource from the second panel, and the spatial relationship thereof is the same as that used for transmitting the source RS.

In summary, the main idea of some embodiments of the invention is to provide a new design for SRS transmission, by which a transmitter is allowed to apply SRS transmission. In some embodiments of the present invention, several exemplary solutions are presented that apply SRS transmission, including association between UE panel entities and SRS resources, SP SRS transmission, and design of AP SRS transmission. First, regarding examples of association methods, explicit methods and/or fixed association methods with one or more SRS resource sets are designed. Next, regarding SP SRS transmission, determination of a first transmission timing to which UL TCI is applied, spatial relationship to be applied to SP SRS, and SP SRS activation/deactivation MAC CE are designed. Thirdly, an AP SRS trigger mechanism and a spatial relationship applied to the AP SRS are designed for the AP SRS transmission. In view of these exemplary methods, support for SRS transmission is greatly enhanced.

The following table includes some abbreviations that may be used in some embodiments of the invention:

the commercial benefits of some embodiments are as follows. 1. Solves the problems in the prior art. 2. An association between the UE panel entity and SRS resources is provided. 3. Spatial relationships are provided for SP SRS transmission. 4. Spatial relationships of AP SRS transmissions are provided. 5. Providing good communication performance. 6. Some embodiments of the invention are implemented by 5G-NR chipset vendors, V2X communication system development vendors, automotive manufacturers including cars, trains, trucks, buses, bicycles, motorcycles, helmets, etc., drones, smart phone manufacturers, public safety communication devices, AR/VR device manufacturers (e.g., games, meetings/seminars, educational purposes). Some embodiments of the invention are a combination of "technologies/procedures" that may be employed in the 3GPP specifications to create the end product. Some embodiments of the invention propose a technical mechanism.

Fig. 18 is a block diagram of a system 700 for wireless communication according to an embodiment of the present invention. The embodiments described herein may be implemented in a system using any suitable configuration of hardware and/or programming. Fig. 18 illustrates an example system 700 for one embodiment, comprising Radio Frequency (RF) circuitry 710, baseband circuitry 720, application circuitry 730, memory/storage 740, display 750, camera 760, sensor 770, and input/output (I/O) interface 780 coupled to one another at least as shown. Application circuitry 730 may include circuitry such as, but not limited to, one or more single-core or multi-core processors. A processor may comprise any combination of general-purpose processors and special-purpose processors, such as graphics processors, application processors, and the like. The processor may be coupled with the memory/storage device and configured to execute instructions stored in the memory/storage device to enable various applications and/or operating systems running on the system.

While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but is intended to cover various arrangements included within the scope of the appended claims without departing from the broadest interpretation of the claims.

Claims

1. A wireless communication method performed by a user equipment UE for sounding reference signal SRS transmission, comprising:

configuring SRS resource configuration and/or SRS resource set configuration by a base station; and

an SRS transmission is applied by the UE, wherein the UE is equipped with one or more panel entities and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of semi-persistent SP SRS transmissions, and/or a spatial relationship of aperiodic AP SRS transmissions.

2. The wireless communication method according to claim 1, wherein the SRS resource configuration and/or the SRS resource set configuration comprises a panel entity index ID, and the UE selects a corresponding panel entity associated with the panel entity ID for SRS transmission according to the panel entity ID.

3. The wireless communication method of claim 2, wherein the SRS resource configuration comprises a set of SRS resources, SRS resources in the set of SRS resources being associated with the panel entity, and the panel entity ID is included in the SRS resource configuration for indicating the association between the panel entity and the SRS resources.

4. The wireless communication method of claim 2, wherein the SRS resource set configuration comprises SRS resource sets associated with the panel entities, the association between the panel entities and the SRS resources being determined from each SRS resource set, and the panel entity IDs are included in the SRS resource set configuration for indicating the association of the panel entities with the SRS resources in the SRS resource set.

5. The wireless communication method according to claim 1, wherein the association between the panel entity and the SRS resource is predefined and/or fixed.

6. The wireless communication method of claim 5, wherein the SRS resource configuration comprises a set of SRS resources, SRS resources in the set of SRS resources are associated with the panel entity, a mapping between the panel entity and the SRS resources is fixed, wherein the mapping between the panel entity and the SRS resources is predefined and aligned between the base station and the UE, and a first set of SRS resources is mapped to a first panel entity and a second set of SRS resources is mapped to a second panel entity.

7. The wireless communication method of claim 5, wherein the SRS resource set configuration comprises a plurality of SRS resource sets, the SRS resource sets are associated with the panel entity, the association between the panel entity and the SRS resource is determined from the SRS resource sets, a mapping between the panel entity and the SRS resource sets is fixed, wherein the mapping between the panel entity and the SRS resource sets is predefined and aligned between the base station and the UE, and a first set of SRS resource sets is mapped to a first panel entity and a second set of SRS resource sets is mapped to a second panel entity.

8. The wireless communication method of claim 1, wherein the UE determines a first transmission opportunity, wherein the UE applies the spatial relationship of SP SRS transmissions derived from an uplink UL transmission configuration indication, TCI.

9. The wireless communication method according to claim 8, wherein the UE determines a first transmission opportunity, a medium access control, MAC, control element, CE, activation time, or a larger value of the DCI application time and the MAC, CE, activation time based on a downlink control information, DCI, application time.

10. The wireless communication method of claim 9, wherein if a resource type in the SRS resource configuration is set to SP and if the UE determines the first transmission occasion based on the DCI application time only, the first transmission occasion to apply the spatial relationship of SP SRS transmission derived from the UL TCI is a first time slot of at least Xms or Y symbols after a last symbol carrying acknowledgement of a physical downlink control channel, PDCCH, indicated by a joint or separate UL beam, wherein the UL TCI is included in DCI, the DCI in the PDCCH being used to schedule a physical downlink shared channel, PDSCH, carrying an SP SRS activation MAC CE.

11. The wireless communication method of claim 9, wherein the first transmission opportunity to apply the spatial relationship of the SP SRS transmission derived from the UL TCI is when, if a resource type in the SRS resource configuration is set to SP and if the UE determines the first transmission opportunity based only on a MAC CE activation timeThe first time slot thereafter, wherein the UL TCI is contained in DCI of a scheduled SP SRS activation MAC CE, and +.>Is the number of slots per subframe, u is the subcarrier spacing SCS configuration of PUCCH, and the UE transmits PUCCH with hybrid automatic repeat request-acknowledgement HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

12. The wireless communication method according to claim 9, wherein if a resource type in the SRS resource configuration is set to SP and if the UE determines the first transmission occasion according to a larger value of the DCI application time and the MAC CE activation time and the DCI application time is not smallAt the MAC CE activation time, the first transmission occasion applying the spatial relationship of SP SRS transmissions derived from the UL TCI is a first slot of at least Xms or Y symbols after a last symbol carrying acknowledgement of a PDCCH of joint or separate UL beam indication, wherein the UL TCI is contained in DCI and the DCI in the PDCCH is used to schedule a PDSCH carrying an SP SRS activated MAC CE; and if the MAC CE activation time is greater than the DCI application time, the first transmission opportunity to apply the spatial relationship of the SP SRS transmission derived from the UL TCI is atThe first time slot thereafter, wherein the UL TCI is contained in DCI of a scheduled SP SRS activation MAC CE, and +.>Is the number of slots per subframe, u is the subcarrier spacing SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

13. The wireless communication method of claim 8, wherein the UE transmits the SP SRS using a single spatial relationship or a flexible spatial relationship derived from the UL TCI indicated in DCI or MAC CE during an activation time.

14. The wireless communication method of claim 13, wherein the single spatial relationship is used for the active SP SRS transmission during the activation time and the single spatial relationship is based on the UL TCI indicated in the DCI or the UL TCI indicated in the MAC CE.

15. The wireless communication method according to claim 14, wherein if the resource type in the SRS resource configuration is set to SP, the spatial relationship derived from the UL TCI for SP SRS transmission is applicable from the first transmission occasion to the last transmission occasion, wherein the UL TCI is included in the DCI for scheduling a PDSCH carrying an active MAC CE or the UL TCI is derived from the latest DCI satisfying a DCI application time.

16. The wireless communication method according to claim 15, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship as the reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

17. The wireless communication method of claim 14, wherein for multi-TRP/panel based SRS transmission, the spatial relationship of SP SRS transmitted from a first panel entity is derived from a source RS of the UL TCI corresponding to the first panel entity in the DCI and the spatial relationship of SP SRS transmitted from a second panel entity is derived from a source RS of the UL TCI corresponding to the second panel entity in the DCI, wherein the DCI is used to schedule the PDSCH carrying the SP SRS activation MAC CE or the DCI is the latest DCI satisfying the DCI application time; and the spatial relationship of the SP SRS transmitted from the first panel entity and the spatial relationship of the SP SRS transmitted from the second panel entity applies from the first transmission opportunity to the last transmission opportunity.

18. The wireless communication method according to claim 17, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as used for transmission of the source RS.

19. The wireless communication method according to claim 18, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI is the SS/PBCH block, the periodic CSI-RS or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

20. The wireless communication method according to claim 14, wherein if the resource type in the SRS resource configuration is set to SP, and if the UL TCI is carried in the MAC CE, the UE transmits the SP SRS using the spatial relationship derived from the UL TCI in the MAC CE, the spatial relationship derived from the UL TCI for SP SRS transmission being applicable from the first transmission occasion to the last transmission occasion, wherein the UL TCI is included in the MAC CE satisfying a MAC CE activation time.

21. The wireless communication method according to claim 20, wherein if a source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS or an SP CSI-RS, the UE transmits the target SRS resource having the same spatial relationship as the reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

22. The wireless communication method of claim 20, wherein for multi-TRP/panel based SRS transmission, the spatial relationship of SP SRS transmitted from a first panel entity is derived from source RSs of the UL TCI corresponding to the first panel entity in the MAC CE and the spatial relationship of SP SRS transmitted from a second panel entity is derived from source RSs of the UL TCI corresponding to the second panel entity in the MAC CE; and the spatial relationship of the SP SRS transmitted from the first panel entity and the spatial relationship of the SP SRS transmitted from the second panel entity applies from the first transmission opportunity to the last transmission opportunity.

23. The wireless communication method according to claim 22, wherein if the source RS in the UL TCI corresponding to the first panel entity in the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as that used for transmission of the source RS.

24. The wireless communication method according to claim 23, wherein if the source RS in the UL TCI corresponding to the second panel entity in the MAC CE is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

25. The wireless communication method according to claim 13, wherein in the flexible spatial relationship, if the resource type in the SRS resource configuration is set to SP, the spatial relationship derived from a latest UL TCI for SP SRS transmission, which is included in a latest DCI satisfying DCI application time or a latest MAC CE satisfying MAC CE activation time, is applied for each SP SRS transmission within the activation time from the first transmission occasion to a last transmission occasion.

26. The wireless communication method according to claim 25, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship as the reception of the source RS; and if the source RS in the UL TCI is the periodic SRS or the SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

27. The wireless communication method according to claim 25, wherein for multi-TRP/panel based SRS transmission, for each SP SRS transmission from a first panel entity within the activation time from the first transmission occasion to the last transmission occasion, the spatial relationship derived from the source RS corresponding to the UL TCI of the first panel entity is applied, wherein the UL TCI is included in the latest DCI meeting a DCI application time or a latest MAC CE meeting the MAC CE activation time; and applying the spatial relationship derived from the source RS corresponding to the UL TCI of the second panel entity for each SP SRS transmission from the second panel entity within the activation time from the first transmission occasion to the last transmission occasion, wherein the UL TCI is included in a latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time.

28. The wireless communication method according to claim 27, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or MAC CE is an SS/PBCH block, a periodic CSI-RS or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the source RS is the same as a spatial relationship used for transmitting the source RS.

29. The wireless communication method according to claim 28, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

30. The wireless communication method of claim 1, wherein the SP SRS activation/deactivation MAC CE carries an SP SRS resource set index to be activated or deactivated, the SP SRS activation/deactivation MAC CE comprising the following fields: cell ID of SRS resource set, bandwidth part BWP ID of SRS resource set, supplementary uplink SUL, SP SRS resource set ID0, SP SRS resource set ID1, a/D and R.

31. The wireless communication method of claim 30, wherein the SP SRS activation/deactivation MAC CE comprises a fixed size or a variable size, and wherein the SP SRS activation/deactivation MAC CE further comprises a C field if the SP SRS activation/deactivation MAC CE comprises a variable size.

32. The wireless communication method of claim 1, wherein the UE applying the AP SRS transmission comprises the UE triggering the AP SRS transmission in a multi-TRP/panel based SRS transmission by adding a field or enhancing a related higher layer parameter.

33. The wireless communication method of claim 32, wherein the UE is triggered by the base station to perform the AP SRS transmission in a multi-TRP/panel based SRS transmission by adding an SRS request field, a first SRS request field is used to trigger the AP SRS transmission from a first panel entity, a second SRS request field is added to trigger the AP SRS transmission from a second panel entity, and the mapping is performed between the second SRS request field and a triggered set of AP SRS resources sent from the second panel entity based on a table.

34. The wireless communication method of claim 33, wherein for multi-TRP/panel based SRS transmission, multiple sets of SRS resource sets are configured in a SRS resource set list, each set of SRS resource sets corresponding to a value of an SRS request field, wherein each set of SRS resource sets in a set corresponds to an AP SRS transmitted from a panel entity, and the number of sets of SRS resource in a set is equal to the number of panel entities for AP SRS transmission, and the number of sets is equal to the number of active states indicated by the SRS request field.

35. The wireless communication method of claim 1, wherein applying, by the UE, the spatial relationship for AP SRS transmission comprises updating, by the UE, the spatial relationship for AP SRS transmission based on a MAC CE update command or not based on the MAC CE update command.

36. The wireless communication method of claim 35, wherein if the resource type in the SRS resource configuration is set to aperiodic, the spatial relationship derived from the UL TCI for the AP SRS transmission is derived from a slot if the UE determines the spatial relationship of the AP SRS transmission based on the MAC CE update commandThe first time slot after that starts application, wherein the UL TCI is contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, and +. >Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying the MAC CE update command.

37. The wireless communication method of claim 36, wherein the UL TCI is carried in the DCI triggering the AP SRS.

38. The wireless communication method according to claim 36, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship as the reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

39. The wireless communication method of claim 36, wherein for multi-TRP/panel based SRS transmission, for the AP SRS transmission from a first panel entity, a spatial relationship derived from the source RS corresponding to the UL TCI of the first panel entity is derived from a time slotStarting application in the following first time slot, wherein the UL TCI is contained in the latest DCI meeting DCI application time or the latest MAC CE meeting MAC CE activation time; for the AP SRS transmission from the second panel entity, the spatial relationship derived from the source RS corresponding to the UL TCI of the second panel entity is derived from slot +. >The first time slot thereafter starts application, wherein the UL TCI is contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, and +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying the MAC CE update command.

40. The wireless communication method of claim 39, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

41. The wireless communication method according to claim 40, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or the MAC CE is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

42. The wireless communication method of claim 35, wherein if the resource type in the SRS resource configuration is set to aperiodic, if the UE determines the spatial relationship of AP SRS transmission without a MAC CE update command, applying a spatial relationship derived from the UL TCI for AP SRS transmission after the UE receives the DCI triggering AP SRS, wherein the UL TCI is included in a latest DCI satisfying a DCI application time or a latest MAC CE satisfying a MAC CE activation time.

43. The wireless communication method of claim 42, wherein the UL TCI is carried in the DCI triggering the AP SRS.

44. The wireless communication method of claim 42, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource having the same spatial relationship as the reception of the source RS; and if the source RS in the UL TCI is the periodic SRS or the SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

45. The wireless communication method of claim 42, wherein for multi-TRP/panel based SRS transmission, for the AP SRS transmission from a first panel entity, after the DCI triggered AP SRS is received by the UE, the spatial relationship derived from the source RS of the UL TCI corresponding to the first panel entity is applied, wherein the UL TCI is included in a latest DCI meeting the DCI application time or a latest MAC CE meeting a MAC CE activation time; and for the AP SRS transmission from the second panel entity, after the UE receives the DCI triggered AP SRS, applying a spatial relationship derived from the source RS of the UL TCI corresponding to the second panel entity, where the UL TCI is included in the latest DCI satisfying the DCI corresponding time or the latest MAC CE satisfying the MAC CE activation time.

46. The wireless communication method of claim 45, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the target SRS resource is the same as a spatial relationship used for transmitting the source RS.

47. The wireless communication method of claim 46, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or the MAC CE is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

48. A wireless communication method for SRS transmission performed by a base station, comprising:

configuring SRS resource configuration and/or SRS resource set configuration to the UE; and

controlling the UE to apply SRS transmission, wherein the UE is equipped with one or more panel entities and the SRS transmission includes an association between the panel entities and SRS resources, a spatial relationship of SP SRS transmission, and/or a spatial relationship of AP SRS transmission.

49. The wireless communications method of claim 48, wherein the SRS resource configuration and/or the SRS resource set configuration includes a panel entity index ID and the base station controls the UE to select a corresponding panel entity associated with the panel entity ID for SRS transmission according to the panel entity ID.

50. The wireless communication method of claim 49, wherein the SRS resource configuration comprises a set of SRS resources, SRS resources in the set of SRS resources being associated with the panel entity, and the panel entity ID is included in the SRS resource configuration for indicating the association between the panel entity and the SRS resources.

51. The wireless communication method of claim 49, wherein the SRS resource set configuration comprises SRS resource sets associated with the panel entities, the association between the panel entities and the SRS resources is determined from each SRS resource set, and the panel entity IDs are included in the SRS resource set configuration for indicating the association of the panel entities with the SRS resources in the SRS resource set.

52. The wireless communication method of claim 48, wherein the association between the panel entity and the SRS resource is predefined and/or fixed.

53. The wireless communication method of claim 52, wherein the SRS resource configuration comprises a set of SRS resources, SRS resources in the set of SRS resources are associated with the panel entity, a mapping between the panel entity and the SRS resources is fixed, wherein the mapping between the panel entity and the SRS resources is predefined and aligned between the base station and the UE, and a first set of SRS resources is mapped to a first panel entity and a second set of SRS resources is mapped to a second panel entity.

54. The wireless communication method of claim 52, wherein the SRS resource set configuration comprises a plurality of SRS resource sets, the SRS resource sets are associated with the panel entity, the association between the panel entity and the SRS resource is determined from the SRS resource sets, a mapping between the panel entity and the SRS resource sets is fixed, wherein the mapping between the panel entity and the SRS resource sets is predefined and aligned between the base station and the UE, and a first set of SRS resource sets is mapped to a first panel entity and a second set of SRS resource sets is mapped to a second panel entity.

55. The wireless communication method of claim 48, wherein the base station is configured to control the UE to determine a first transmission opportunity, wherein the UE applies the spatial relationship of the SP SRS transmission derived from the UL TCI.

56. The wireless communication method of claim 55, wherein the base station controls the UE to determine a first transmission opportunity, a MAC CE activation time, or a larger value of the DCI application time and the MAC CE activation time based on a DCI application time.

57. The wireless communication method of claim 56, wherein if a resource type in the SRS resource configuration is set to SP and if the UE determines the first transmission occasion based only on the DCI application time, the first transmission occasion of the spatial relationship applying the SP SRS transmission derived from the UL TCI is a first time slot of at least Xms or Y symbols after a last symbol carrying acknowledgement of a PDCCH of joint or separate UL beam indication, wherein the UL TCI is included in DCI, the DCI in the PDCCH being used to schedule a PDSCH carrying an SP SRS activation MAC CE.

58. The wireless communication method of claim 56, wherein if a resource type in the SRS resource configuration is set to SP and if the base station controls the UE Determining the first transmission opportunity based only on a MAC CE activation time, the first transmission opportunity applying the spatial relationship of the SP SRS transmission derived from the UL TCI beingThe first time slot thereafter, wherein the UL TCI is contained in DCI of a scheduled SP SRS activation MAC CE, and +.>Is the number of slots per subframe, u is the subcarrier spacing SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

59. The wireless communication method of claim 56, wherein if a resource type in the SRS resource configuration is set to SP, and if the base station controls the UE to determine the first transmission occasion according to a larger value of the DCI application time and the MAC CE activation time, and the DCI application time is not less than the MAC CE activation time, the first transmission occasion to apply the spatial relationship of SP SRS transmission derived from the UL TCI is a first slot of at least Xms or Y symbols after a last symbol carrying acknowledgement of a PDCCH of joint or separate UL beam indication, wherein the UL TCI is contained in DCI, and the DCI in the PDCCH is used to schedule a PDSCH carrying SP-SRS-activated MAC CE; and if the MAC CE activation time is greater than the DCI application time, the first transmission opportunity to apply the spatial relationship of the SP SRS transmission derived from the UL TCI is at The first time slot thereafter, wherein the UL TCI is contained in DCI of a scheduled SP SRS activation MAC CE, and +.>Is each ofThe number of slots of a subframe, u, is a subcarrier spacing SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying MAC CE activation command.

60. The wireless communication method of claim 55, wherein the UE transmits the SP SRS using a single spatial relationship or a flexible spatial relationship derived from the UL TCI indicated in DCI or MAC CE during an activation time.

61. The wireless communication method of claim 60, wherein the single spatial relationship is used for the active SP SRS transmission during the activation time and the single spatial relationship is based on the UL TCI indicated in the DCI or the UL TCI indicated in the MAC CE.

62. The wireless communication method of claim 61, wherein the spatial relationship derived from the UL TCI for SP SRS transmission is applicable from the first transmission occasion to a last transmission occasion if the resource type in the SRS resource configuration is set to SP, wherein the UL TCI is included in the DCI for scheduling a PDSCH carrying an active MAC CE or the UL TCI is derived from a latest DCI satisfying a DCI application time.

63. The wireless communications method of claim 62, wherein if a source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship as reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

64. The wireless communication method of claim 61, wherein for multi-TRP/panel based SRS transmission, the spatial relationship of SP SRS transmitted from a first panel entity is derived from a source RS of the UL TCI corresponding to the first panel entity in the DCI and the spatial relationship of SP SRS transmitted from a second panel entity is derived from a source RS of the UL TCI corresponding to the second panel entity in the DCI, wherein the DCI is used to schedule the PDSCH carrying the SP SRS activation MAC CE or the DCI is the latest DCI satisfying the DCI application time; and the spatial relationship of the SP SRS transmitted from the first panel entity and the spatial relationship of the SP SRS transmitted from the second panel entity applies from the first transmission opportunity to the last transmission opportunity.

65. The wireless communication method of claim 64, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as used for transmission of the source RS.

66. The wireless communications method of claim 65, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

67. The wireless communication method of claim 61, wherein if the resource type in the SRS resource configuration is set to SP and if the UL TCI is carried in the MAC CE, the UE transmits the SP SRS using the spatial relationship derived from the UL TCI in the MAC CE, the spatial relationship derived from the UL TCI for SP SRS transmission being applicable from the first transmission occasion to the last transmission occasion, wherein the UL TCI is included in the MAC CE satisfying a MAC CE activation time.

68. The wireless communications method of claim 67, wherein if a source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource with the same spatial relationship as reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

69. The wireless communication method of claim 67, wherein for multi-TRP/panel based SRS transmission, the spatial relationship of SP SRS transmitted from a first panel entity is derived from source RSs of the UL TCI corresponding to the first panel entity in the MAC CE and the spatial relationship of SP SRS transmitted from a second panel entity is derived from source RSs of the UL TCI corresponding to the second panel entity in the MAC CE; and the spatial relationship of the SP SRS transmitted from the first panel entity and the spatial relationship of the SP SRS transmitted from the second panel entity applies from the first transmission opportunity to the last transmission opportunity.

70. The wireless communication method of claim 69, wherein if the source RS in the UL TCI corresponding to the first panel entity in the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as receiving the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as that used for transmission of the source RS.

71. The wireless communication method of claim 70, wherein if the source RS in the UL TCI corresponding to the second panel entity in the MAC CE is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to a spatial relationship used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

72. The wireless communication method of claim 60, wherein in the flexible spatial relationship, if the resource type in the SRS resource configuration is set to SP, the spatial relationship derived from a latest UL TCI for SP SRS transmission is applied for each SP SRS transmission within the activation time from the first transmission opportunity to a last transmission opportunity, wherein the UL TCI is included in a latest DCI satisfying a DCI application time or a latest MAC CE satisfying a MAC CE activation time.

73. The wireless communications method of claim 72, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship as reception of the source RS; and if the source RS in the UL TCI is the periodic SRS or the SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

74. The wireless communication method of claim 72, wherein for multi-TRP/panel based SRS transmission, for each SP SRS transmission from a first panel entity within the activation time from the first transmission opportunity to the last transmission opportunity, the spatial relationship derived from the source RS corresponding to the UL TCI of the first panel entity is applied, wherein the UL TCI is included in the latest DCI meeting a DCI application time or a latest MAC CE meeting the MAC CE activation time; and applying the spatial relationship derived from the source RS corresponding to the UL TCI of the second panel entity for each SP SRS transmission from the second panel entity within the activation time from the first transmission occasion to the last transmission occasion, wherein the UL TCI is included in a latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time.

75. The wireless communications method of claim 74, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the source RS is the same as a spatial relationship used for transmitting the source RS.

76. The wireless communication method according to claim 75, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

77. The wireless communications method of claim 76, wherein an SP SRS activation/deactivation MAC CE carries an SP SRS resource set index to be activated or deactivated, the SP SRS activation/deactivation MAC CE comprising the following fields: cell ID of SRS resource set, bandwidth part BWP ID of SRS resource set, supplementary uplink SUL, SP SRS resource set ID0, SP SRS resource set ID1, a/D and R.

78. The wireless communication method of claim 76, wherein the SP SRS activation/deactivation MAC CE comprises a fixed size or a variable size, and wherein the SP SRS activation/deactivation MAC CE further comprises a C field if the SP SRS activation/deactivation MAC CE comprises a variable size.

79. The wireless communication method of claim 65, wherein applying the AP SRS transmission by the UE comprises triggering the AP SRS transmission in a multi-TRP/panel based SRS transmission by the UE by adding a field or enhancing a related higher layer parameter.

80. The wireless communication method of claim 79, wherein the base station triggers the UE to trigger the AP SRS transmission in a multi-TRP/panel based SRS transmission by the base station by adding an SRS request field, a first SRS request field for triggering the AP SRS transmission from a first panel entity, a second SRS request field is added to trigger the AP SRS transmission from a second panel entity, and the mapping is based on a table between the second SRS request field and a triggered set of AP SRS resources sent from the second panel entity.

81. The wireless communication method of claim 80, wherein for multi-TRP/panel based SRS transmission, multiple sets of SRS resource sets are configured in a SRS resource set list, each set of SRS resource sets corresponding to a value of an SRS request field, wherein each set of SRS resource sets in a set corresponds to an AP SRS transmitted from a panel entity, and the number of sets of SRS resource in a set is equal to the number of panel entities for the AP SRS transmission, and the number of sets is equal to the number of active states indicated by the SRS request field.

82. The wireless communication method of claim 48, wherein applying, by the UE, the spatial relationship for AP SRS transmission comprises updating, by the UE, the spatial relationship for AP SRS transmission based on a MAC CE update command or not based on the MAC CE update command.

83. The wireless communications method of claim 82, wherein if the resource type in the SRS resource configuration is set to aperiodic, if the base station controls the UE to determine the spatial relationship for the AP SRS transmission based on the MAC CE update command, the spatial relationship derived from the UL TCI for the AP SRS transmission is derived from a slot The first time slot after that starts application, wherein the UL TCI is contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, and +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying the MAC CE update command.

84. The wireless communication method of claim 83, wherein the UL TCI is carried in the DCI triggering the AP SRS.

85. The wireless communication method of claim 83, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits a target SRS resource having the same spatial relationship with the reception of the source RS; and if the source RS in the UL TCI is a periodic SRS or an SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

86. The wireless communications method of claim 83, wherein for multi-TRP/panel based SRS transmission, spatial relationship derived from the source RS corresponding to the UL TCI of a first panel entity is from slot for the AP SRS transmission from the first panel entity Starting application in the following first time slot, wherein the UL TCI is contained in the latest DCI meeting DCI application time or the latest MAC CE meeting MAC CE activation time; for the AP SRS transmission from the second panel entity, the spatial relationship derived from the source RS corresponding to the UL TCI of the second panel entity is derived from slot +.>The first time slot thereafter starts application, wherein the UL TCI is contained in the latest DCI satisfying the DCI application time or the latest MAC CE satisfying the MAC CE activation time, and +.>Is the number of slots per subframe, u is the SCS configuration of PUCCH, and the UE transmits PUCCH with HARQ-ACK information in slot n corresponding to PDSCH carrying the MAC CE update command.

87. The wireless communications method of claim 86, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in the same spatial relationship as used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

88. The wireless communications method of claim 87, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or the MAC CE is the SS/PBCH block, the periodic CSI-RS, or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

89. The wireless communications method of claim 82, wherein if the resource type in the SRS resource configuration is set to aperiodic, if the base station controls the UE to determine the spatial relationship of AP SRS transmission without a MAC CE update command, after the UE receives the DCI triggering AP SRS, a spatial relationship derived from the UL TCI for AP SRS transmission is applied, wherein the UL TCI is included in a latest DCI that satisfies a DCI application time or a latest MAC CE that satisfies a MAC CE activation time.

90. The wireless communication method of claim 89, wherein the UL TCI is carried in the DCI triggering the AP SRS.

91. The wireless communications method of claim 89, wherein if the source RS in the UL TCI is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource with the same spatial relationship as reception of the source RS; and if the source RS in the UL TCI is the periodic SRS or the SP SRS, the UE transmits the target SRS resource in the same spatial relationship as used for transmission of the source RS.

92. The wireless communication method of claim 90, wherein for multi-TRP/panel based SRS transmission, for the AP SRS transmission from a first panel entity, after the DCI triggered AP SRS is received by the UE, the spatial relationship derived from the source RS of the UL TCI corresponding to the first panel entity is applied, wherein the UL TCI is included in a latest DCI meeting the DCI application time or a latest MAC CE meeting a MAC CE activation time; and for the AP SRS transmission from the second panel entity, after the UE receives the DCI triggered AP SRS, applying a spatial relationship derived from the source RS of the UL TCI corresponding to the second panel entity, where the UL TCI is included in the latest DCI satisfying the DCI corresponding time or the latest MAC CE satisfying the MAC CE activation time.

93. The wireless communications method of claim 92, wherein if the source RS in the UL TCI corresponding to the first panel entity in the DCI or the MAC CE is an SS/PBCH block, a periodic CSI-RS, or an SP CSI-RS, the UE transmits the target SRS resource from the first panel entity in a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the first panel entity is a periodic SRS or an SP SRS, the UE transmits the target SRS resource from the first panel entity, where a spatial relationship of the target SRS resource is the same as a spatial relationship used for transmitting the source RS.

94. The wireless communication method according to claim 93, wherein if the source RS in the UL TCI corresponding to the second panel entity in the DCI or the MAC CE is the SS/PBCH block, the periodic CSI-RS or the SP CSI-RS, the UE transmits the target SRS resource from the second panel entity with a spatial relationship identical to that used for reception of the source RS; and if the source RS in the UL TCI corresponding to the second panel entity is the periodic SRS or the SP SRS, the UE transmits the target SRS resource from the second panel entity, where a spatial relationship of the UE is the same as a spatial relationship used for transmitting the source RS.

95. A user equipment, UE, comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver;

wherein the processor is configured to perform the method of any one of claims 1 to 47.

96. A base station, comprising:

a memory;

a transceiver; and

a processor coupled to the memory and the transceiver;

wherein the processor is configured to perform the method of any one of claims 48 to 94.

97. A non-transitory machine-readable storage medium having instructions stored thereon, which when executed by a computer, cause the computer to perform the method of any one of claims 1 to 94.

98. A chip, comprising:

a processor configured to invoke and run a computer program stored in a memory to cause a device on which the chip is installed to perform the method according to any of claims 1 to 94.

99. A computer readable storage medium, characterized in that a computer program is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1 to 94.

100. A computer program product comprising a computer program, wherein the computer program causes a computer to perform the method according to any one of claims 1 to 94.

101. A computer program, characterized in that it causes a computer to perform the method according to any one of claims 1 to 94.