Uplink beam indication method and device

Abstract

The embodiment of the invention discloses an uplink beam indication method and device. The method comprises the following steps: network equipment sends uplink beam indication information to terminal equipment; wherein the uplink beam indication information comprises one or more pieces of spatial relationship information (SRI) and / or SRI identifiers, the one or more pieces of SRI are used for indicating beams used on a first resource, and the one or more pieces of SRI comprise SRI configured by a non-first resource; and the network device sends and / or receives data based on a target beam, wherein the target beam is a beam corresponding to the uplink beam indication information. By implementing the embodiments of the present disclosure, resource overhead can be saved, resource waste can be avoided, and the time delay of uplink beam indication can be optimized.

Description

Uplink beam indication method and device Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to an uplink beam indication method and device thereof. Background Art

[0002] In the related art, the uplink channel beam indication in NR (New Radio) is generally through the three-level indication method of RRC (Radio Resource Control)-MAC (Medium Access Control) CE (Control Element)-DCI (Downlink Control Information), where the uplink beam information is indicated by SRI (Spatial Relation Information). For example, taking the PUCCH (Physical Uplink Control Channel) beam indication as an example, RRC will configure an SRI list for the terminal device, which includes one or more SRIs, and then MAC CE will activate the SRI to map it to the SRI information field in the DCI.

[0003] However, for an uplink beam indication for a specific BWP (Bandwidth Part), the corresponding beam information in the SRI list only indicates the beam for the current BWP resource. If channel conditions change or the terminal device moves, the currently configured SRI list needs to be updated. The network equipment must reconfigure the SRI list, which can compromise latency and incurs significant resource overhead for beam indication and measurement.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide an uplink beam indication method and apparatus thereof, which can be applied to the Internet of Vehicles, such as vehicle-to-everything (V2X) communication, long-term evolution-vehicle (LTE-V) communication, vehicle-to-vehicle (V2V) communication, etc., or can be used in the fields of intelligent driving and intelligent connected vehicles. By using the uplink beam information of the current resource to indicate the beams of other resources, uplink beam indication across resources (such as across bandwidth parts (BWPs) or cells) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the latency of uplink beam indication.

[0006] In a first aspect, an embodiment of the present disclosure provides an uplink beam indication method, the method being performed by a network device, the method including:

[0007] Sending uplink beam indication information to the terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs not configured for the first resource itself;

[0008] Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0009] In this technical solution, by using the uplink beam information of the current resource to indicate the beam other than its own (such as other resources other than its own resources), uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0010] In one implementation, the method further includes:

[0011] Before sending the uplink beam indication information, the network device receives capability information sent by the terminal device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication. Thus, the network device determines different uplink beam indication schemes based on the capability report of the terminal device and the different capabilities of the terminal device.

[0012] In a second aspect, an embodiment of the present disclosure provides another uplink beam indication method, the method being performed by a network device, the method including:

[0013] Determining that a speed of the terminal device changes from a first speed to a second speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold;

[0014] Sending first uplink beam indication information to the terminal device, where the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the second resource, wherein the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam;

[0015] Data is sent and / or received based on a first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

[0016] In this technical solution, the working resource of the terminal device is the first resource, and the beam of the first resource is a narrow beam. When the terminal device changes from a first speed to a second speed (such as from a stationary state to a moving state, such as fast movement), the beam of the first resource can be indicated by the uplink beam information of the second resource, that is, the first resource can be indicated by the uplink beam information of the second resource corresponding to the wide beam, so that the terminal device can generate the target beam of the first resource based on the uplink beam information of the second resource, thereby realizing uplink beam indication across resources (such as BWP or cell), thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0017] In a third aspect, an embodiment of the present disclosure provides another uplink beam indication method, the method being performed by a network device, the method including:

[0018] Determining that a speed of the terminal device changes from a second speed to a first speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold;

[0019] Sending first uplink beam indication information to the terminal device, where the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the second resource, wherein the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam;

[0020] Data is sent and / or received based on a first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

[0021] In this technical solution, the working resource of the terminal device is the first resource, and the beam of the first resource is a wide beam. When the terminal device changes from the second speed to the first speed (such as from a mobile state to a stationary state), the uplink beam of the second resource can be indicated by the uplink beam information of the first resource, that is, the second resource can be indicated by the uplink beam information of the first resource corresponding to the narrow beam, so that the terminal device can generate the target beam of the second resource based on the uplink beam information of the first resource, thereby realizing uplink beam indication across resources (such as BWP or cell), thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0022] In a fourth aspect, an embodiment of the present disclosure provides another uplink beam indication method, the method being performed by a network device, the method including:

[0023] Determining that the terminal device needs to perform beam switching;

[0024] Sending uplink beam indication information to the terminal device, wherein the uplink beam indication information includes one or more spatial relationship information (SRIs) and / or SRI identifiers, the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs are derived from an SRI not configured for the first resource itself;

[0025] Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0026] In this technical solution, when it is determined that the terminal device needs to perform beam switching, the uplink beam other than its own (such as other resources other than its own resources) can be indicated through the beam information of the current resource, and uplink beam indication across resources (such as BWP or cell) can be realized, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0027] In a fifth aspect, an embodiment of the present disclosure provides another uplink beam indication method, which is performed by a terminal device and includes:

[0028] Receiving uplink beam indication information sent by a network device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs include an SRI not configured for the first resource itself;

[0029] Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0030] In this technical solution, the uplink beam information of the current resource is used to indicate the uplink beams of other resources, so that uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0031] In one implementation, the method further includes:

[0032] Before receiving the uplink beam indication information sent by the network device, capability information is sent to the network device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication. Thus, the terminal device reports the capability information of the terminal device to the network device, and the network device determines different uplink beam indication schemes based on the different capabilities of the terminal device through the capability report of the terminal device.

[0033] In a sixth aspect, an embodiment of the present disclosure further provides an uplink beam indication method, the method being performed by a network device, the method comprising:

[0034] Sending uplink beam indication information to the terminal device, where the uplink beam indication information is used to indicate selection of one or more SRIs from the configuration information or the spatial relationship information SRI configured by the second resource, where the selected one or more SRIs are used to indicate a beam used on the first resource, and the selected one or more SRIs include an SRI configured for a non-first resource itself, wherein the configuration information is information configured by the network device for the terminal device, and the configuration information includes at least the SRI of the second resource;

[0035] Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0036] In a seventh aspect, an embodiment of the present disclosure provides a communication device having the function of implementing some or all of the functions of the network device in the method described in the first aspect above. For example, the functions of the communication device may have the functions of some or all of the embodiments of the present disclosure, or may have the function of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0037] In one implementation, the communication device may include a transceiver module and a processing module, wherein the processing module is configured to support the communication device in performing the corresponding functions of the above-mentioned method. The transceiver module is used to support communication between the communication device and other devices. The communication device may also include a storage module, which is coupled to the transceiver module and the processing module and stores computer programs and data necessary for the communication device.

[0038] As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

[0039] In an eighth aspect, an embodiment of the present disclosure provides a communication device having the function of implementing some or all of the functions of the network device in the method described in the second aspect above. For example, the functions of the communication device may have the functions of some or all of the embodiments of the present disclosure, or may have the function of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0040] In a ninth aspect, an embodiment of the present disclosure provides a communication device having the function of implementing some or all of the functions of the network device in the method described in the third aspect above. For example, the functions of the communication device may have the functions of some or all of the embodiments of the present disclosure, or may have the function of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0041] In a tenth aspect, an embodiment of the present disclosure provides a communication device having the function of implementing some or all of the functions of the network device in the method described in the fourth aspect above. For example, the functions of the communication device may have the functions of some or all of the embodiments of the present disclosure, or may have the function of implementing any one of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0042] In an eleventh aspect, an embodiment of the present disclosure provides another communication device that has some or all of the functions of the terminal device in the method example described in the fifth aspect above. For example, the functions of the communication device may have some or all of the functions in the embodiments of the present disclosure, or may have the functions of implementing any one of the embodiments of the present disclosure separately. The functions may be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0043] In a twelfth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the first aspect above.

[0044] In a thirteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the second aspect.

[0045] In a fourteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the third aspect above.

[0046] In a fifteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the fourth aspect.

[0047] In a sixteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor. When the processor calls a computer program in a memory, it executes the method described in the fifth aspect above.

[0048] In the seventeenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.

[0049] In the eighteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.

[0050] In the nineteenth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the third aspect above.

[0051] In the twentieth aspect, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the fourth aspect above.

[0052] In aspect 21, an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in aspect 5 above.

[0053] In aspect 22, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in aspect 1 above.

[0054] In aspect 23, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in aspect 2 above.

[0055] In aspect 24, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in aspect 3 above.

[0056] In aspect 25, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in aspect 4 above.

[0057] In aspect 26, an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in aspect 5 above.

[0058] In aspect 27, an embodiment of the present disclosure provides an uplink beam indication system, which includes the communication device described in aspect 7, aspect 8, aspect 9, or aspect 10 and the communication device described in aspect 11, or the system includes the communication device described in aspect 12, aspect 13, aspect 14, or aspect 15 and the communication device described in aspect 16, or the system includes the communication device described in aspect 17, aspect 18, aspect 19, or aspect 20 and the communication device described in aspect 21, or the system includes the communication device described in aspect 22, aspect 23, aspect 24, or aspect 25 and the communication device described in aspect 26.

[0059] In aspect 28, an embodiment of the present disclosure provides a computer-readable storage medium for storing instructions for the above-mentioned network device. When the instructions are executed, the network device executes the method described in aspect 1, aspect 2, aspect 3, aspect 4 or aspect 5 above.

[0060] In aspect 29, the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in aspect 1, aspect 2, aspect 3, aspect 4 or aspect 5 above.

[0061] In aspect 30, the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in aspect 1, aspect 2, aspect 3, aspect 4 or aspect 5 above. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the background technology, the drawings required for use in the embodiments of the present disclosure or the background technology will be described below.

[0063] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0064] FIG2 is a schematic flow chart of a beam indication method provided by an embodiment of the present disclosure;

[0065] FIG3 is a schematic flow chart of another beam indication method provided by an embodiment of the present disclosure;

[0066] FIG4 is a schematic flow chart of another beam indication method provided by an embodiment of the present disclosure;

[0067] FIG5 is a schematic diagram of a flow chart of another beam indication method provided by an embodiment of the present disclosure;

[0068] FIG6 is a schematic flow chart of another beam indication method provided by an embodiment of the present disclosure;

[0069] FIG7 is a flow chart of another beam indication method provided by an embodiment of the present disclosure

[0070] FIG8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0071] FIG9 is a schematic structural diagram of another communication device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0072] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and are not to be construed as limitations on the present disclosure. In the description of the present disclosure, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist, for example, A and / or B can mean: the existence of A alone, the existence of A and B at the same time, and the existence of B alone.

[0073] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "an" and "the" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0074] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0075] The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be understood as limiting the present disclosure.

[0076] With the continuous development of wireless communications, the demand for communication capabilities is becoming increasingly stringent. For future applications such as AR (Augmented Reality) / VR (Virtual Reality), the Internet of Vehicles, and the Internet of Things, ultra-high-speed, ultra-low-latency, and ultra-high-bandwidth communications will become the norm. To meet these requirements, a growing number of new technologies are being proposed.

[0077] Terahertz (THz) is a potential key technology for 6G (the sixth-generation mobile communications standard, also known as sixth-generation mobile communication technology) and is the most likely candidate for inclusion in the 6G standard. Terahertz communication is considered a key air interface technology candidate for achieving 6G Tbps / s communication speeds, with potential applications in holographic communications, micro-scale communications, ultra-high-capacity data backhaul, and short-distance ultra-high-speed transmission. Furthermore, leveraging THz's ultra-wide bandwidth and high-resolution resolution for high-precision positioning and high-resolution imaging of networks and / or terminal devices is a promising area for expanding THz communication applications.

[0078] However, the terahertz frequency band is relatively high. If MIMO (multiple input, multiple output) beamforming is used, the beams become extremely narrow, and the coverage range and angle of a single beam are very small. Therefore, a large number of beams are required to cover a cell or area, potentially thousands of beams. As a result, frequent beam switching and beam indication are inevitable as users move around.

[0079] In the related art, the uplink channel beam indication in NR (New Radio) is generally through the three-level indication method of RRC (Radio Resource Control)-MAC (Medium Access Control) CE (Control Element)-DCI (Downlink Control Information), where the uplink beam information is indicated by SRI (Spatial Relation Information). For example, taking the PUCCH (Physical Uplink Control Channel) beam indication as an example, the SRI list in the MAC CE is shown in Table 1 below. RRC will configure the SRI list for the terminal device, and the SRI list includes one or more SRIs. Then, MAC CE will activate the SRI therein to map to the SRI information field in the DCI, where R in Table 1 represents content.

[0080] Table 1 takes PUCCH beam indication as an example, SRI list in MAC CE

[0081] However, for an uplink beam indication for a specific BWP (Bandwidth Part), the corresponding beam information in the SRI list only indicates the beam for the current BWP resource. If channel conditions change or the terminal device moves, the currently configured SRI list needs to be updated. The network equipment must reconfigure the SRI list, which can compromise latency and incurs significant resource overhead for beam indication and measurement.

[0082] Based on the above problems, the embodiments of the present disclosure provide an uplink beam indication method and device thereof, which can realize uplink beam indication across resources (such as across bandwidth parts BWP or cells), can solve the problem of high resource overhead for beam indication and beam measurement in related technologies, and can also solve the delay problem.

[0083] In order to better understand the uplink beam indication method disclosed in an embodiment of the present disclosure, the communication system to which the embodiment of the present disclosure is applicable is first described below.

[0084] Please refer to Figure 1, which is a schematic diagram of the architecture of a communication system provided in an embodiment of the present disclosure. The communication system may include, but is not limited to, one network device and one terminal device. The number and configuration of devices shown in Figure 1 are for example purposes only and do not constitute a limitation on the embodiments of the present disclosure. In actual applications, two or more network devices and two or more terminal devices may be included. The communication system shown in Figure 1 includes, for example, one network device 101 and one terminal device 102.

[0085] It should be noted that the technical solutions of the embodiments of the present disclosure can be applied to various communication systems, such as long-term evolution (LTE) systems, fifth-generation (5G) mobile communication systems, 5G new radio (NR) systems, or other future new mobile communication systems.

[0086] The network device 101 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals. For example, the network device 101 can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the network device. The network device provided in the embodiment of the present disclosure can be composed of a centralized unit (CU) and a distributed unit (DU), wherein the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the network device, such as the base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.

[0087] The terminal device 102 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device can also be called a terminal device (terminal), user equipment (UE), mobile station (MS), mobile terminal device (MT), etc. The terminal device can be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self-driving (self-driving), a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), etc. The embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal device.

[0088] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0089] The uplink beam indication method and device provided by the present disclosure are introduced below with reference to the accompanying drawings.

[0090] Please refer to Figure 2, which is a flowchart of an uplink beam indication method provided by an embodiment of the present disclosure. It should be noted that the method can be executed by a network device, that is, the method can be described from the network device side. As shown in Figure 2, the method can include but is not limited to the following steps:

[0091] In step 201, uplink beam indication information is sent to the terminal device.

[0092] Optionally, when the uplink channel conditions change or the terminal device moves and it is determined that the terminal device needs to perform uplink beam switching, the network device can send uplink beam indication information to the terminal device, and instruct the terminal device to use the corresponding target beam to send and / or receive data through the uplink beam indication information.

[0093] In an embodiment of the present disclosure, the uplink beam indication information includes one or more SRIs and / or one or more SRI identifiers. One SRI identifier (SRI ID) corresponds to one SRI. The one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs configured by non-first resources themselves. As an example, the one or more SRIs are derived from SRIs configured by non-first resources themselves. One SRI corresponds to one uplink beam. As an example, the SRI configured by non-first resources themselves may be the SRI configured by the second resource.

[0094] In one implementation, the one or more SRIs may include an SRI configured by the first resource itself. As an example, the one or more SRIs may be derived from an SRI configured by a resource other than the first resource itself, or alternatively, the one or more SRIs may be derived from an SRI configured by a second resource.

[0095] Optionally, in one implementation, when the uplink beam indication information includes a plurality of SRIs, the plurality of SRIs may include the SRI configured by the second resource and the SRI configured by the first resource. When the uplink beam indication information includes a plurality of SRI identifiers, the SRIs corresponding to the plurality of SRI identifiers may include the SRI configured by the second resource and the SRI configured by the first resource.

[0096] In an embodiment of the present disclosure, the first resource may include one or more uplink channels. For example, the first resource may be an activated resource, and the second resource may be one or more uplink channels other than the first resource. The activated resource may be an uplink channel on which data is transmitted. For example, the first resource may be a resource with service transmission, and the second resource may be a resource without service transmission. In one implementation, the resource may be a BWP or a cell. As an example of a possible implementation, the first resource may be a first cell, and the second resource may be a second cell; or, the first resource may be a first BWP, and the second resource may be a second BWP.

[0097] In one possible implementation, when the first resource may be a first cell and the second resource may be a second cell, the first cell may include one or more uplink channels. For example, the first cell is an activated cell, and the second cell may include one or more uplink channels other than the first cell. The activated cell may be a cell where data is transmitted. For example, the first cell may be a cell with service transmission, and the second cell may be a cell without service transmission.

[0098] In one possible implementation, when the first resource is a first BWP and the second resource is a second BWP, the first BWP may include one or more uplink channels. For example, the first BWP is an active BWP, and the second BWP may include one or more uplink channels other than the first BWP. The active BWP may be the BWP where data is transmitted. For example, the first BWP may be a BWP with service transmission, and the second BWP may be a BWP without service transmission. Optionally, the first BWP and the second BWP may belong to the same cell, or they may belong to different cells.

[0099] In some embodiments of the present disclosure, the uplink beam indication information may include but is not limited to at least one of the following information: a resource identifier and an SRI identifier. It should be noted that the resource identifier may be a resource ID, that is, the resource representation may be a resource ID, or other information that can uniquely identify the resource. Among them, the resource identifier may indicate the first resource; the SRI identifier may indicate the SRI corresponding to the uplink beam indication information, one SRI corresponds to one SRI identifier, and the one or more SRIs included in the uplink beam indication information are not the SRI configured by the first resource itself. As an example, the one or more SRIs included in the uplink beam indication information may be the SRI configured by the second resource. In a possible implementation, the resource identifier may be a BWP identifier and / or a cell identifier.

[0100] In one implementation, the uplink beam indication information may include a BWP identifier and an SRI identifier. It should be noted that the BWP identifier may be a BWPID or other information that can uniquely identify the BWP. The BWP identifier may indicate the first BWP, and the SRI identifier may indicate the SRI corresponding to the uplink beam indication information, with one SRI corresponding to one SRI identifier. As an example, relative to the first BWP (i.e., the BWP where data is transmitted), the BWP indicated by the SRI belongs to the same cell as the first BWP. The BWP identifier may be the identifier of the first BWP (such as the activated BWP), or it may be the identifier of the second BWP (i.e., a BWP other than the first BWP). In this way, through this signaling, it is possible to indicate the uplink beam of the first BWP or the uplink beam of the second BWP through the uplink beam information of the current BWP, and it is possible to implement uplink beam indication across BWPs or within the BWP itself.

[0101] In another implementation, the uplink beam indication information may include a cell identifier and the SRI identifier. It should be noted that the cell identifier may be a cell ID, that is, the cell representation may be a cell ID, or other information that can uniquely identify the cell. The cell identifier may indicate other cells outside the service cell of the terminal device, and the SRI identifier may indicate the SRI corresponding to the uplink beam indication information, and one SRI corresponds to one SRI identifier. In this way, through this signaling, it is possible to indicate the uplink beam of the first cell or the uplink beam of the second cell through the uplink beam information of the current cell, and to realize the uplink beam indication across cells or the cell itself.

[0102] In another implementation, the uplink beam indication information may include a cell identifier, the BWP identifier, and the SRI identifier. The cell identifier may indicate other cells other than the service cell of the terminal device, the BWP identifier may indicate the first BWP, and the SRI identifier may indicate the SRI corresponding to the uplink beam indication information, and one SRI corresponds to one SRI identifier. As an example, relative to the first BWP (i.e., the BWP where data is transmitted), the BWP indicated by the SRI belongs to a different cell from the first BWP. In this way, through this signaling, it is possible to indicate the beam of the first cell or the beam of the second cell through the uplink beam information of the current cell, thereby realizing uplink beam indication across cells or the cell itself.

[0103] Optionally, in some embodiments of the present disclosure, the uplink beam indication information may be carried in at least one of the following ways: RRC signaling; MAC CE command; DCI signaling.

[0104] In this embodiment, the uplink beam indication information may be carried by RRC signaling. That is, the uplink beam indication information may be indicated by RRC signaling.

[0105] In this embodiment, the uplink beam indication information may be carried by MAC CE signaling. That is, the uplink beam indication information may be indicated by MAC CE signaling.

[0106] In this embodiment, the uplink beam indication information may be carried by DCI signaling. That is, the uplink beam indication information may be indicated by DCI signaling.

[0107] In this embodiment, the BWP identifier in the uplink beam indication information may be carried by RRC signaling, and the SRI identifier may be carried by DCI signaling. For example, the BWP identifier in the uplink beam indication information may be carried by RRC signaling, and the SRI identifier may be carried by DCI signaling.

[0108] In this embodiment, the cell identifier in the uplink beam indication information may be carried by RRC signaling, and the SRI identifier may be carried by DCI signaling. For example, the cell identifier in the uplink beam indication information may be carried by RRC signaling, and the SRI identifier may be carried by DCI signaling.

[0109] In this embodiment, the cell identifier in the uplink beam indication information can be carried through RRC signaling, the BWP identifier can be carried through MAC CE signaling, and the SRI identifier can be carried through DCI signaling.

[0110] It should be noted that the above-mentioned embodiments for uplink beam indication information are not exhaustive, but are only illustrations of some embodiments, and the above-mentioned embodiments can be implemented individually or in combination. The above-mentioned embodiments are only for illustration and are not intended to be a specific limitation on the scope of protection of the embodiments of the present disclosure.

[0111] In some embodiments of the present disclosure, the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam. In this way, the simultaneous activation of beams of multiple widths can be achieved. It can be understood that the angle between the two half-power points (i.e., 3dB gain points) of the beam can indicate the width of the beam, wherein the larger the angle, the wider the beam, and the smaller the angle, the narrower the beam. The wide beam may refer to the angle between the two half-power points (i.e., 3dB gain points) of the beam being greater than or equal to the angle threshold. For example, if the angle between the two half-power points (i.e., 3dB gain points) of the beam is less than the angle threshold, the beam can be called a narrow beam. In this way, the uplink beam of the first resource can be indicated by the uplink beam information of the second resource (i.e., the beam information of the wide beam), that is, the uplink beam information of the wide beam resource is used to indicate the narrow beam, thereby achieving uplink beam indication across resources.

[0112] In some embodiments of the present disclosure, the beam indicated by the SRI configured for the first resource is a wide beam, and the beam indicated by the SRI configured for the second resource is a narrow beam. In this way, the uplink beam information of the second resource (i.e., the beam information of the narrow beam) can be used to indicate the uplink beam of the first resource, that is, the uplink beam information of the narrow beam resource is used to indicate the wide beam, thereby achieving cross-resource uplink beam indication.

[0113] In step 202, data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0114] In an embodiment of the present disclosure, the network device may send and / or receive data based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0115] In one possible implementation, the beam indicated by the uplink beam indication information is an uplink beam, and the network device can receive data based on the target uplink receiving beam, and the target uplink receiving beam is the beam corresponding to the uplink beam indication information. As an example, the data can be PUCCH or PUSCH (Physical Uplink Shared Channel) data, and the network device can use the target uplink receiving beam corresponding to the uplink beam indication information to receive PUCCH or PUSCH data. It should be noted that the data can also be other types of data, which is not specifically limited in this disclosure and will not be elaborated on. It is worth noting that the uplink beam indication in the embodiment of the present disclosure mainly provides an implementation method for the beam indication of the uplink transmit beam. The beam indication scheme for the downlink transmit beam and the downlink receive beam can refer to the processing of the uplink beam in this disclosure. This disclosure does not specifically limit this and will not elaborate on it.

[0116] It should be noted that, since the SRI in the uplink beam indication information can indicate the beam used on the first resource, the SRI includes the SRI configured for the non-first resource itself. In this way, uplink beam switching can be performed through the uplink beam indication information. That is, in one implementation, the uplink beam indication information involved in the embodiments of the present disclosure can achieve the purpose of beam switching. The network device sends the uplink beam indication information to the terminal device to implement the beam switching function. This enables the terminal device to use the beam of other BWPs or other cells without switching BWPs or cells, thereby improving the flexibility of the beam.

[0117] In the embodiment of the present disclosure, by indicating the beams of other resources through the uplink beam information of the current resource, uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0118] It should be noted that in some embodiments of the present disclosure, the network device may determine which beam indication scheme to use based on the capabilities of the terminal device. In one implementation, the network device receives capability information reported by the terminal device, and determines the corresponding beam indication method based on the capability information, wherein the capability information can be used to indicate whether the terminal device supports cross-resource uplink beam indication. Optionally, the present disclosure may determine different beam indication schemes based on the different capabilities of the terminal device. Specifically, please refer to Figure 3, which is a flow chart of another uplink beam indication method provided by an embodiment of the present disclosure. It should be noted that the method can be executed by a network device, that is, the method can be described from the network device side. As shown in Figure 3, the method may include but is not limited to the following steps:

[0119] In step 301, capability information sent by a terminal device is received, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0120] In some embodiments of the present disclosure, the capability information may indicate that the terminal device supports cross-resource uplink beam indication, and / or, the capability information may indicate that the terminal device uses a cross-resource uplink beam to send / receive data.

[0121] Optionally, the network device may determine the corresponding beam indication scheme according to the terminal device capability through the capability report of the terminal device. In some embodiments of the present disclosure, the terminal device may report the capability information of the terminal device to the network device. The network device receives the capability information sent by the terminal device, and the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication. Among them, the cross-resource uplink beam indication can be understood as using the beam information of the current resource to indicate the beams of other resources. For example, taking the capability information as an example to indicate that the terminal device supports cross-resource uplink beam indication, and the resource is BWP, it means that the terminal device supports cross-BWP uplink beam indication, that is, it supports using the beam information of the current BWP to indicate the beams of other BWPs. For example, if the capability information is used to indicate that the terminal device does not support uplink beam indication across resources, and the resource is BWP, it means that the terminal device does not support uplink beam indication across BWP, that is, it does not support using the beam information of the current BWP to indicate the beams of other BWPs. For example, the terminal device only supports using the beam information of the current BWP to indicate its own (that is, the current BWP) beam.

[0122] In an embodiment of the present disclosure, the timing for reporting the capability information may be before the network device sends the uplink beam indication information to the terminal device. In one possible implementation, the timing for reporting the capability information may be one or more of RRC connection establishment, RRC connection reconstruction, RRC reconfiguration, etc., that is, the terminal device may send the capability information to the network device at one or more of RRC connection establishment, RRC connection reconstruction, RRC reconfiguration, etc. Alternatively, the timing for reporting the capability information may also be other timings, that is, any timing before the network device sends the uplink beam indication information to the terminal device. This disclosure does not limit this and will not elaborate on this.

[0123] In step 302, uplink beam indication information is sent to the terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs that are not configured by the first resource itself.

[0124] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device and determines, based on the capability information, that the terminal device supports cross-resource uplink beam indication. If the terminal device supports cross-resource uplink beam indication, when it is determined that the terminal device needs to perform beam switching, the network device may send the uplink beam indication information to the terminal device.

[0125] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device, and determines that the terminal device does not support cross-resource uplink beam indication based on the capability information. In one implementation, when the terminal device does not support cross-resource uplink beam indication, when the uplink channel condition changes or the terminal device moves, it is determined that the terminal device needs to perform beam switching, and the network device needs to reconfigure the SRI list. For example, beam switching and beam indication can be performed according to the existing uplink beam indication method, for example, through the RRC-MAC CE-DCI three-level indication method, where the uplink beam information is indicated by SRI. For example, taking PUCCH beam indication as an example, RRC will configure an SRI list for the terminal device, and the SRI list includes one or more SRIs, and then MAC CE will activate the SRI therein to map to the SRI information field in the DCI. The existing uplink beam indication method can refer to the existing uplink beam indication implementation method, that is, the existing terminal device mobility processing implementation method can be used for beam switching and beam indication. This disclosure does not limit this and will not be repeated.

[0126] In the embodiments of the present disclosure, the implementation method of step 302 (i.e., how the network device sends uplink beam indication information to the terminal device) can be implemented by any one of the embodiments of the present disclosure. This is not limited here and will not be repeated.

[0127] In step 303, data is sent and / or received based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0128] In the embodiment of the present disclosure, step 303 may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0129] In the embodiments of the present disclosure, the network device determines different uplink beam indication schemes based on the capabilities reported by the terminal device. Furthermore, by using the uplink beam information of the current resource to indicate the beams of other resources, uplink beam indication across resources (such as BWPs or cells) can be implemented, thereby saving resource overhead, avoiding resource waste, and optimizing the latency of uplink beam indication.

[0130] Optionally, the network device can configure the SRI of multiple (e.g., at least two) resources for the terminal device. In this way, the network device can activate the SRI of the multiple resources for mapping to the SRI information field in the DCI. Specifically, please refer to Figure 4, which is a flow chart of another uplink beam indication method provided by an embodiment of the present disclosure. It should be noted that the method can be executed by the network device, that is, the method can be described from the network device side. As shown in Figure 4, the method may include but is not limited to the following steps:

[0131] In step 401, capability information sent by a terminal device is received, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0132] In the embodiment of the present disclosure, step 401 may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0133] In step 402, configuration information is sent to the terminal device.

[0134] In an embodiment of the present disclosure, the configuration information includes an SRS (Sounding Reference Signal, channel sounding reference signal) resource set of the first resource and / or an SRS resource set of the second resource. In a possible implementation, the configuration information may include an SRS resource set of the first resource and / or an SRS resource set of the second resource. The SRS resource set of the first resource includes one or more SRS resources, and the SRS resource set of the second resource includes one or more SRS resources. One SRI corresponds to one SRS resource, and one SRS resource corresponds to one uplink beam. The target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter. In one implementation, the same SRS resource uses the same target beam to send an SRS signal in a certain time period. The same target beam refers to the same spatial filter used to generate the beam. The spatial filter can be a beamforming coefficient, and different spatial filters can be used for different beamforming channels.

[0135] As an example, taking PUCCH beam indication as an example, the SRS resource sets of the first BWP and the second BWP in the MAC CE can be shown in Table 2 below.

[0136] Table 2 takes PUCCH beam indication as an example, and shows the SRS resource sets of the first BWP and the second BWP in the MAC CE. BWP ID1 in the table is the first BWP, and BWP ID2 is the second BWP. The second BWP can be one or more. R in Table 2 represents content.

[0137] It is understandable that each element in the above-mentioned Table 2 exists independently, and these elements are exemplarily listed in the same table, but it does not mean that all elements in the table must exist at the same time as shown in the table. The value of each element is independent of the value of any other element in Table 2. Therefore, those skilled in the art will understand that the value of each element in Table 2 is an independent embodiment. It should be noted that the present disclosure includes multiple tables, and each of the tables is similar to Table 2, in that multiple independent embodiments are merged into the same table, and each element in these tables should also be considered to be an independent embodiment.

[0138] Optionally, in some embodiments of the present disclosure, a response relationship between the capability information and the configuration information can be established. In one implementation, the network device can determine that the terminal device supports cross-resource uplink beam indication based on the capability information reported by the terminal device, and the network device can send configuration information to the terminal device, wherein the configuration information may include an SRS resource set of the first resource and an SRS resource set of the second resource. The SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0139] In one implementation, the resource may be a BWP or a cell. As an example, the network device may send configuration information to the terminal device. The configuration information may include an SRS resource set of a first BWP and an SRS resource set of a second BWP. The SRS resource set of the first BWP includes one or more SRS resources, the SRS resource set of the second BWP includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0140] As another example, the network device may send configuration information to the terminal device, and the configuration information may include the SRS resource set of the first Cell and the SRS resource set of the second Cell, the SRS resource set of the first Cell includes one or more SRS resources, the SRS resource set of the second Cell includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0141] In one possible implementation, the configuration information may be carried via RRC signaling. As an example, the network device may send the configuration information to the terminal device via RRC signaling. For example, during an RRC connection establishment, RRC connection reestablishment, or RRC connection reconfiguration process, the network device may send the configuration information to the terminal device via RRC signaling. Optionally, the configuration information may also be carried via other signaling, which is not limited in this disclosure and will not be described in detail.

[0142] It is worth noting that in the embodiments of the present disclosure, the execution order of the above-mentioned step 401 and step 402 can be: execute step 401 first and then execute step 402, or, execute step 402 first and then execute step 401, or execute step 401 and step 402 at the same time. The execution order of step 401 and step 402 can be determined according to the implementation. The present disclosure does not limit this and will not elaborate on it.

[0143] In step 403, uplink beam indication information is sent to the terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs that are not configured by the first resource itself.

[0144] Optionally, when the uplink channel conditions change or the terminal device moves and it is determined that the terminal device needs to perform uplink beam switching, the network device can send uplink beam indication information to the terminal device, and instruct the terminal device to use the corresponding target beam to send and / or receive data through the uplink beam indication information.

[0145] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device and determines, based on the capability information, that the terminal device supports cross-resource uplink beam indication. If the terminal device supports cross-resource uplink beam indication, when it is determined that the terminal device needs to perform beam switching, the network device may send the uplink beam indication information to the terminal device.

[0146] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device, and determines that the terminal device does not support cross-resource uplink beam indication based on the capability information. In one implementation, when the terminal device does not support cross-resource uplink beam indication, when the uplink channel condition changes or the terminal device moves, it is determined that the terminal device needs to perform beam switching, and the network device needs to reconfigure the SRI list. For example, beam switching and beam indication can be performed according to the existing uplink beam indication method, for example, through the RRC-MAC CE-DCI three-level indication method, where the uplink beam information is indicated by SRI. For example, taking PUCCH beam indication as an example, RRC will configure an SRI list for the terminal device, and the SRI list includes one or more SRIs, and then MAC CE will activate the SRI therein to map to the SRI information field in the DCI. The existing uplink beam indication method can refer to the existing uplink beam indication implementation method, that is, the existing terminal device mobility processing implementation method can be used for beam switching and beam indication. This disclosure does not limit this and will not be repeated.

[0147] In an embodiment of the present disclosure, the uplink beam indication information includes one or more SRIs and / or SRI identifiers. One SRI identifier (SRI ID) corresponds to one SRI. The one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs configured by non-first resources themselves. As an example, the one or more SRIs are derived from SRIs configured by non-first resources themselves. One SRI corresponds to one uplink beam. As an example, the SRI configured by non-first resources themselves may be the SRI configured by the second resource.

[0148] In one implementation, the one or more SRIs may include an SRI configured by the first resource itself. As an example, the one or more SRIs may be derived from an SRI configured by a resource other than the first resource itself, or alternatively, the one or more SRIs may be derived from an SRI configured by a second resource.

[0149] Optionally, in one implementation, when the uplink beam indication information includes a plurality of SRIs, the plurality of SRIs may include the SRI configured by the second resource and the SRI configured by the first resource. When the uplink beam indication information includes a plurality of SRI identifiers, the SRIs corresponding to the plurality of SRI identifiers may include the SRI configured by the second resource and the SRI configured by the first resource.

[0150] Optionally, in one implementation, the uplink beam indication information can only indicate the SRI included in the configuration information.

[0151] Among them, in the embodiment of the present disclosure, for the number of uplink channels included in the first resource and the second resource and the related description thereof, please refer to the number of uplink channels included in the first resource and the second resource and the related description thereof in the above-mentioned step 201, which will not be repeated here.

[0152] In an embodiment of the present disclosure, the first resource is a first BWP, and the second resource is a second BWP, or the first resource may be a first cell, and the second resource may be a second cell. For the relevant description of this embodiment, please refer to the description of the solution in the above step 201 where the first resource is the first BWP, the second resource is the second BWP, or the first resource may be the first cell, and the second resource may be the second cell, which will not be repeated here.

[0153] It should be noted that, in the embodiments of the present disclosure, one resource can be mapped to only one SRI. In one implementation, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for other uplink channels in the first resource except the first uplink channel. That is, the SRI used by a certain uplink channel in the first resource can be derived from the SRI configured for another uplink channel except the certain uplink channel. As an example, taking the resource as a BWP and the first resource as the first BWP as an example, the SRI used by a certain uplink channel in the first BWP can be derived from the SRI configured for another uplink channel except the certain uplink channel. For example, the first BWP includes two uplink channels (such as uplink channel 1 and uplink channel 2), the uplink beam indication information can indicate uplink channel 1 in the first BWP, and the SRI of uplink channel 1 in the first BWP can be derived from the SRI configured for uplink channel 2 (that is, the SRI of uplink channel 2 included in the configuration information). As another example, taking the resource as a cell Cell and the first resource as the first cell, the SRI used by a certain uplink channel in the first cell may be derived from the TCI State set configured for another uplink channel other than the certain uplink channel. For example, the first cell includes two uplink channels (such as uplink channel 1 and uplink channel 2), the uplink beam indication information may indicate the uplink channel 1 in the first cell, and the SRI of the uplink channel 1 in the first cell may be derived from the SRI configured for the uplink channel 2 (that is, the SRI of the uplink channel 2 included in the configuration information).

[0154] In another implementation, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for the second uplink channel in the second resource. That is, the SRI used by a certain uplink channel in the first resource is derived from the SRI configured for a certain uplink channel in the second resource. As an example, taking the resource as a BWP, the first resource as a first BWP, and the second resource as a second BWP, the SRI used by a certain uplink channel in the first BWP may be derived from the SRI configured for a certain uplink channel in the second BWP. For example, the first BWP includes two uplink channels (such as uplink channel 1 and uplink channel 2), and the second BWP includes uplink channel 3 and uplink channel 4. The uplink beam indication information may indicate uplink channel 1 in the first BWP, and the SRI of uplink channel 1 in the first BWP may be derived from the SRI configured for uplink channel 3 (i.e., the SRI of uplink channel 3 included in the configuration information). As another example, taking the resource as a cell, the first resource as a first cell, and the second resource as a second cell, the SRI used by an uplink channel in the first cell may be derived from the SRI configured for an uplink channel in the second cell. For example, the first cell includes two uplink channels (such as uplink channel 1 and uplink channel 2), and the second cell includes uplink channel 3 and uplink channel 4. The uplink beam indication information may indicate uplink channel 1 in the first cell, and the SRI of uplink channel 1 in the first cell may be derived from the SRI configured for uplink channel 4 (that is, the SRI of uplink channel 4 included in the configuration information).

[0155] It should be noted that, in the embodiments of the present disclosure, multiple resources can be mapped to one SRI together. In one implementation, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the first uplink channel in the first resource. That is, the SRI used by two or more uplink channels in the first resource can be derived from the SRI configured for a certain uplink channel in the first resource. As an example, taking the resource as a BWP and the first resource as the first BWP as an example, the SRI used by two or more uplink channels in the first BWP is derived from the SRI configured for a certain uplink channel in the first BWP. For example, the first BWP includes two uplink channels (such as uplink channel 1 and uplink channel 2), the uplink beam indication information can indicate uplink channel 1 and uplink channel 2 in the first BWP, and the SRIs of uplink channel 1 and uplink channel 2 in the first BWP can be derived from the SRI configured for uplink channel 1 (that is, the SRI of uplink channel 1 included in the configuration information). As another example, taking the resource as a cell and the first resource as the first cell, the SRI used by two or more uplink channels in the first cell may be derived from the SRI configured for an uplink channel in the first cell. For example, the first cell includes two uplink channels (such as uplink channel 1 and uplink channel 2), and the uplink beam indication information may indicate uplink channel 1 and uplink channel 2 in the first cell. The SRI of uplink channel 1 and uplink channel 2 in the first cell may be derived from the SRI configured for uplink channel 1 (that is, the SRI of uplink channel 1 included in the configuration information).

[0156] In another implementation, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the second uplink channel in the second resource. That is, the SRI used by two or more uplink channels in the first resource may be derived from the SRI configured for a certain uplink channel in the second resource. As an example, taking the resource as a BWP, the first resource as a first BWP, and the second resource as a second BWP, the SRI used by two or more uplink channels in the first BWP is derived from the SRI configured for a certain uplink channel in the second BWP. For example, the first BWP includes two uplink channels (such as uplink channel 1 and uplink channel 2), and the second BWP includes uplink channel 3 and uplink channel 4. The uplink beam indication information may indicate uplink channel 1 and uplink channel 2 in the first BWP, and the SRIs of uplink channel 1 and uplink channel 2 in the first BWP may be derived from the SRI configured for uplink channel 3 (i.e., the SRI of uplink channel 3 included in the configuration information). As another example, taking the resource as a cell, the first resource as a first cell, and the second resource as a second cell, the SRI used by two or more uplink channels in the first cell may be derived from the SRI configured for an uplink channel in the second cell. For example, the first cell includes two uplink channels (such as uplink channel 1 and uplink channel 2), and the second cell includes uplink channel 3 and uplink channel 4. The uplink beam indication information may indicate uplink channel 1 and uplink channel 2 in the first cell, and the SRI of uplink channel 1 and uplink channel 2 in the first cell may be derived from the SRI configured for uplink channel 3 (that is, the SRI of uplink channel 3 included in the configuration information).

[0157] In the embodiment of the present disclosure, the content included in the uplink beam indication information can be found in the relevant description of the uplink beam indication information in the above step 201, and will not be repeated here.

[0158] Among them, in the embodiment of the present disclosure, for the relevant description of the signaling used to carry the uplink beam indication information, please refer to the relevant description of the signaling used to carry the uplink beam indication information in the above step 201, which will not be repeated here.

[0159] In some embodiments of the present disclosure, the implementation method of whether the beam indicated by the SRI configured by the first resource and the beam indicated by the SRI configured by the second resource are narrow beams or wide beams can be referred to the relevant description of the beam indicated by the SRI configured by the first resource and the beam indicated by the SRI configured by the second resource in the above step 201, which will not be repeated here.

[0160] In step 404, data is sent and / or received based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0161] In the embodiment of the present disclosure, step 404 may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0162] In an embodiment of the present disclosure, the network device reports the capabilities of the terminal device and determines different uplink beam indication schemes according to the different capabilities of the terminal device. In addition, by indicating the beams of other resources through the uplink beam information of the current resource, uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication. In addition, by configuring the SRI of multiple resources through configuration information, when beam switching is required, the uplink beam information of the current resource is used to indicate the beams of other resources, and uplink beam indication across resources (such as BWP or cell) can be achieved. Since the beams of other resources can be derived from the configuration information, there is no need to reconfigure to update the SRI list, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of beam indication.

[0163] It is worth noting that the cross-resource uplink beam indication scheme provided by the present disclosure includes cross-BWP uplink beam indication and cross-cell uplink beam indication. The implementation method of cross-BWP uplink beam indication and cross-cell uplink beam indication can adopt the cross-resource uplink beam indication shown in the embodiment of the present disclosure, and will not be repeated here.

[0164] It's important to note that beams in the terahertz band are extremely narrow. When a mobile device is in motion, frequent beam switching and beam indication occur; using a wide beam can reduce these. When the device is static or quasi-static, using a thin beam can better guarantee transmission rates. The following describes different application scenarios to illustrate how beam indication is performed during beam switching.

[0165] In application scenario 1, the working resource of the terminal device is a first resource, and the beam of the first resource is a narrow beam. When the UE moves rapidly, the beam information of the second resource (i.e., the beam information of the wide beam) is used to indicate the beam of the first resource. Specifically, the uplink beam indication method may include but is not limited to the following steps: step 401a, step 402a, and step 403a as described below.

[0166] In step 401a, the network device determines that the speed of the terminal device changes from a first speed to a second speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold.

[0167] Optionally, the network device may utilize a perception algorithm to determine perception data such as the speed, direction, and angle of the terminal device, and utilize the perception data to determine the moving speed and / or moving direction of the terminal device. The network device determines whether the speed of the terminal device changes from a first speed to a second speed based on the moving speed and / or moving direction of the terminal device. Upon determining that the speed of the terminal device changes from the first speed to the second speed, the network device determines that the terminal device requires beam switching. It is understood that if the terminal device moves radially, beam switching is not required. However, if the terminal device moves laterally and the beam switching conditions are met, beam switching is required.

[0168] In step 402a, the network device sends first uplink beam indication information to the terminal device. The first uplink beam indication information includes one or more SRIs and / or SRI identifiers, the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs are derived from the SRI configured for the second resource, wherein the beam indicated by the SRI configured for the first resource is a narrow beam, and the beam indicated by the SRI configured for the second resource is a wide beam.

[0169] In the embodiments of the present disclosure, for the description of the first resource and the second resource, reference may be made to the description of the relevant implementation manners of the first resource and the second resource above, which will not be repeated here.

[0170] In step 403a, the network device sends and / or receives data based on the first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

[0171] In a possible implementation, the beam indicated by the first uplink beam indication information is an uplink beam, and the network device can receive data based on the target uplink receiving beam corresponding to the first uplink beam indication information.

[0172] It should be noted that before the network device sends the first uplink beam indication information to the terminal device, the terminal device needs to report the capability information of the terminal device to the network device. The network device can receive the capability information sent by the terminal device, and the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication. Optionally, before the network device sends the first uplink beam indication information to the terminal device, the network device can also send configuration information to the terminal device, and the configuration information includes the SRS resource set of the first resource and / or the SRS resource set of the second resource, the SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0173] In some embodiments of the present disclosure, the network device determines that the speed of the terminal device changes from the second speed to the first speed; the network device sends a second uplink beam indication information to the terminal device, and the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the first resource; the network device sends and / or receives data based on the second target beam, and the second target beam is the beam corresponding to the second uplink beam indication information. In this way, the working resource of the terminal device is the first resource, and the beam of the first resource is a wide beam. When the terminal device changes from the second speed to the first speed (such as from a mobile state to a stationary state), the uplink beam information (i.e., beam information of a narrow beam) of the current working resource (i.e., the first resource) can be used to indicate its own beam.

[0174] By implementing the embodiments of the present disclosure, the working resource of the terminal device is the first resource, and the beam of the first resource is a narrow beam. When the terminal device changes from a first speed to a second speed (such as from a stationary state to a moving state, such as fast movement), the beam of the first resource can be indicated by the beam information of the second resource, that is, the first resource can be indicated by the beam information of the second resource corresponding to the wide beam, so that the terminal device can generate a target beam of the first resource based on the beam information of the second resource, thereby realizing beam indication across resources (such as BWP or cell), thereby saving resource overhead, avoiding resource waste, and optimizing the delay of beam indication.

[0175] In application scenario 2, the working resource of the terminal device is a first resource, and the beam of the first resource is a wide beam. When the UE is stationary, the uplink beam information of the second resource (i.e., the beam information of the narrow beam) is used to indicate the beam of the first resource. Specifically, the uplink beam indication method may include but is not limited to the following steps: step 401b, step 402b, and step 403b as described below.

[0176] In step 401b, the network device determines that the speed of the terminal device changes from the second speed to the first speed, wherein the first speed is lower than the first speed threshold, the second speed is higher than the second speed threshold, and the first speed threshold is less than or equal to the second speed threshold.

[0177] Optionally, the network device may utilize a perception algorithm to determine perception data such as the speed, direction, and angle of the terminal device, and utilize the perception data to determine the moving speed and / or moving direction of the terminal device. The network device determines whether the speed of the terminal device changes from a first speed to a second speed based on the moving speed and / or moving direction of the terminal device. Upon determining that the speed of the terminal device changes from the first speed to the second speed, the network device determines that the terminal device requires beam switching. It is understood that if the terminal device moves radially, beam switching is not required. However, if the terminal device moves laterally and the beam switching conditions are met, beam switching is required.

[0178] In step 402b, the network device sends a first uplink beam indication information to the terminal device, and the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the second resource, wherein the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

[0179] In the embodiments of the present disclosure, for the description of the first resource and the second resource, reference may be made to the description of the relevant implementation manners of the first resource and the second resource above, which will not be repeated here.

[0180] In step 403b, the network device sends and / or receives data based on the first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

[0181] In the embodiment of the present disclosure, step 403b may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0182] It should be noted that before the network device sends the first uplink beam indication information to the terminal device, the terminal device needs to report the capability information of the terminal device to the network device. The network device can receive the capability information sent by the terminal device, and the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication. Optionally, before the network device sends the first uplink beam indication information to the terminal device, the network device can also send configuration information to the terminal device, and the configuration information includes the SRS resource set of the first resource and / or the SRS resource set of the second resource, the SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0183] In some embodiments of the present disclosure, the network device determines that the speed of the terminal device changes from the first speed to the second speed. The network device sends a second uplink beam indication information to the terminal device, and the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the first resource. The network device sends and / or receives data based on the second target beam, and the second target beam is the beam corresponding to the second uplink beam indication information. In this way, the working resource of the terminal device is the first resource, and the beam of the first resource is a wide beam. When the terminal device moves quickly, the beam information of the current working resource (i.e., the first resource) (i.e., the beam information of the wide beam) is used to indicate its own beam.

[0184] By implementing the embodiments of the present disclosure, the working resource of the terminal device is the first resource, and the beam of the first resource is a wide beam. When the terminal device changes from the second speed to the first speed (such as from a mobile state to a stationary state), the beam of the second resource can be indicated by the uplink beam information of the first resource, that is, the wide beam of the second resource can be indicated by the uplink beam information of the first resource corresponding to the narrow beam, so that the terminal device can generate the target beam of the second resource based on the uplink beam information of the first resource, thereby realizing uplink beam indication across resources (such as BWP or cell), thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0185] Application scenario 3: When the uplink channel condition changes, beam switching and beam indication are required. Specifically, the uplink beam indication method may include but is not limited to the following steps: step 401c, step 402c, and step 403c as described below.

[0186] In step 401c, the network device determines that the terminal device needs to perform beam switching.

[0187] In one implementation, the network device determines that the terminal device needs to perform beam switching based on the uplink channel condition.

[0188] In step 402c, the network device sends uplink beam indication information to the terminal device, and the uplink beam indication information includes one or more spatial relationship information SRI and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs are derived from the SRI configured by the first resource itself.

[0189] In step 403c, the network device sends and / or receives data based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0190] In one implementation, the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam. For example, the working BWP of the terminal device is the first BWP (such as the activated BWP). When the uplink channel condition changes, such as the terminal device is affected by surrounding external factors, resulting in a deterioration of the channel condition, the network device can send uplink beam indication information to the terminal device. The SRI included in the uplink beam indication information can indicate the beam used on the first BWP. The SRI included in the uplink beam indication information is derived from the SRI configured by the second BWP, that is, beam switching is achieved through uplink beam indication across BWPs. Optionally, when the uplink channel conditions improve, the network device can send another uplink beam indication information to the terminal device. The SRI included in the uplink beam indication information can indicate the beam speed used on the first resource, and the SRI included in the uplink beam indication information is derived from the SRI configured by the first BWP itself to achieve beam switching.

[0191] In another implementation, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam. For example, the working BWP of the terminal device is the first BWP (such as the activated BWP). When the uplink channel condition changes, such as the terminal device is affected by surrounding external factors, resulting in improved channel conditions, the network device can send uplink beam indication information to the terminal device. The SRI included in the uplink beam indication information can indicate the beam used on the first BWP, and the SRI included in the uplink beam indication information is derived from the SRI configured by the second BWP, that is, beam switching is achieved through uplink beam indication across BWPs. Optionally, when the uplink channel conditions deteriorate, the network device can send another uplink beam indication information to the terminal device, and the SRI included in the uplink beam indication information can indicate the beam used on the first BWP, and the SRI included in the uplink beam indication information is derived from the SRI configured by the first BWP itself to achieve beam switching.

[0192] By implementing the embodiments of the present disclosure, when it is determined that the terminal device needs to perform beam switching, the uplink beam information of the current resource can be used to indicate a beam other than its own (such as other resources other than its own resources), and uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0193] Optionally, an embodiment of the present disclosure further provides an uplink beam indication method, which is executed by a network device and may include but is not limited to the following steps: step 401d and step 402d below.

[0194] In step 401d, uplink beam indication information is sent to the terminal device, and the uplink beam indication information is used to indicate the selection of one or more SRIs from the configuration information or the spatial relationship information SRI configured by the second resource, and the selected one or more SRIs are used to indicate the beam used on the first resource, and the selected one or more SRIs include SRIs configured by non-first resources themselves, wherein the configuration information is information configured by the network device for the terminal device, and the configuration information includes at least the SRI of the second resource.

[0195] Among them, in the embodiments of the present disclosure, the implementation method of the uplink beam indication information can refer to the relevant description of the uplink beam indication information above. The present disclosure does not limit this and will not elaborate on it.

[0196] In step 402d, data is sent and / or received based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0197] In the embodiment of the present disclosure, step 402d may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0198] In the embodiment of the present disclosure, by indicating the beams of other resources through the uplink beam information of the current resource, uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0199] It can be understood that the above embodiment describes the implementation of the uplink beam indication method of the embodiment of the present disclosure from the network device side. The embodiment of the present disclosure also proposes another uplink beam indication method, and the implementation of the uplink beam indication method will be described below from the terminal device side. Please refer to Figure 5, which is a flow chart of another uplink beam indication method provided by the embodiment of the present disclosure. It should be noted that the method of the embodiment of the present disclosure can be executed by the terminal device. As shown in Figure 5, the method may include but is not limited to the following steps.

[0200] In step 501, uplink beam indication information sent by a network device is received.

[0201] Optionally, when the channel conditions change or the terminal device moves, and the network device determines that the terminal device needs to perform beam switching, the network device can send uplink beam indication information to the terminal device. The terminal device can receive the uplink beam indication information sent by the network device and send and / or receive data through the target beam corresponding to the uplink beam indication information.

[0202] In an embodiment of the present disclosure, the uplink beam indication information includes one or more SRIs and / or SRI identifiers, and the one or more SRIs are used to indicate the beam used on the first resource, and the one or more SRIs include SRIs that are not configured by the first resource itself.

[0203] Among them, the implementation method of the first resource, the second resource, and the beam indication information in the embodiment of the present disclosure can refer to the relevant description of the first resource, the second resource and the uplink beam indication information on the above-mentioned network device side. No limitation is made here and no further details are given.

[0204] In step 502, data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0205] In an embodiment of the present disclosure, the terminal device can send and / or receive data based on the target beam corresponding to the beam indication information.

[0206] In one possible implementation, the beam indicated by the beam indication information is an uplink beam, and the terminal device can transmit data based on the target uplink transmission beam, and the target uplink transmission beam is the beam corresponding to the uplink beam indication information. As an example, the data can be PUCCH data, and the terminal device can use the target uplink transmission beam corresponding to the uplink beam indication information to transmit PUCCH data. It should be noted that the data can also be other types of data, which is not specifically limited in this disclosure and will not be described in detail.

[0207] In the embodiment of the present disclosure, by indicating the uplink beams of other resources through the uplink beam information of the current resource, uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0208] It should be noted that, in some embodiments of the present disclosure, the terminal device may report the capability information of the terminal device to the network device. The network device may determine which beam indication scheme to use based on the capabilities of the terminal device. In one implementation, the network device receives the capability information reported by the terminal device, and determines the corresponding beam indication method based on the capability information, wherein the capability information can be used to indicate whether the terminal device supports cross-resource uplink beam indication. Optionally, the present disclosure may determine different beam indication schemes based on the different capabilities of the terminal device. Specifically, please refer to Figure 6, which is a flow chart of another uplink beam indication method provided by an embodiment of the present disclosure. It should be noted that the method can be executed by a network device, that is, the method can be described from the terminal device side. As shown in Figure 6, the method may include but is not limited to the following steps:

[0209] In step 601, capability information is sent to a network device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0210] Among them, the implementation method of the capability information in the embodiment of the present disclosure can refer to the relevant description of the capability information on the network device side mentioned above, which is not limited to this and will not be repeated here.

[0211] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device and determines, based on the capability information, that the terminal device supports cross-resource uplink beam indication. If the terminal device supports cross-resource uplink beam indication, when it is determined that the terminal device needs to perform beam switching, the network device may send the uplink beam indication information to the terminal device.

[0212] In some embodiments of the present disclosure, a network device receives capability information sent by a terminal device, and determines that the terminal device does not support cross-resource uplink beam indication based on the capability information. In one implementation, when the terminal device does not support cross-resource uplink beam indication, when the uplink channel condition changes or the terminal device moves, it is determined that the terminal device needs to perform beam switching, and the network device needs to reconfigure the SRI list. For example, beam switching and beam indication can be performed according to the existing uplink beam indication method, for example, through the RRC-MAC CE-DCI three-level indication method, where the uplink beam information is indicated by SRI. For example, taking PUCCH beam indication as an example, RRC will configure an SRI list for the terminal device, and the SRI list includes one or more SRIs, and then MAC CE will activate the SRI therein to map to the SRI information field in the DCI. The existing uplink beam indication method can refer to the existing uplink beam indication implementation method, that is, the existing terminal device mobility processing implementation method can be used for beam switching and beam indication. This disclosure does not limit this and will not be repeated.

[0213] In step 602, uplink beam indication information sent by a network device is received.

[0214] In the embodiment of the present disclosure, step 602 may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0215] In step 603, data is sent and / or received based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0216] In the embodiment of the present disclosure, step 603 may be implemented in any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0217] In the embodiments of the present disclosure, a terminal device reports its capability information to a network device. The network device, based on the terminal device's capability report, determines different uplink beam indication schemes based on the different capabilities of the terminal device. Furthermore, by using the uplink beam information of the current resource to indicate the beams of other resources, uplink beam indication across resources (such as a BWP or cell) can be implemented, thereby saving resource overhead, avoiding resource waste, and optimizing the latency of uplink beam indication.

[0218] Optionally, the network device can configure the SRI of multiple (such as at least two) resources for the terminal device, so that the network device can activate the SRI of the multiple resources for mapping to the SRI information field in the DCI. Specifically, please refer to Figure 7, which is a flow chart of another uplink beam indication method provided by an embodiment of the present disclosure. It should be noted that the method can be executed by the network device, that is, the method can be described from the terminal device side. As shown in Figure 7, the method may include but is not limited to the following steps:

[0219] In step 701, capability information is sent to a network device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0220] In the embodiment of the present disclosure, the implementation of step 701 can be implemented by any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0221] In step 702, configuration information sent by the network device is received, wherein the configuration information includes the SRS resource set of the first resource and / or the SRS resource set of the second resource, the SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0222] Among them, the implementation method of the configuration information in the embodiment of the present disclosure can refer to the relevant description of the configuration information on the network device side mentioned above, which is not limited to this and will not be repeated here.

[0223] It should be noted that, in an embodiment of the present disclosure, the execution order of the above-mentioned step 701 and step 702 can be: execute step 701 first and then execute step 702, or, execute step 702 first and then execute step 701, or execute step 701 and step 702 at the same time. The execution order of step 701 and step 702 can be determined according to the implementation. The present disclosure does not limit this and will not elaborate on it.

[0224] In step 703, uplink beam indication information sent by the network device is received.

[0225] In the embodiment of the present disclosure, the implementation of step 703 can be implemented by any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0226] In step 704, data is sent and / or received based on the target beam, where the target beam is the beam corresponding to the uplink beam indication information.

[0227] In the embodiment of the present disclosure, the implementation of step 704 can be implemented by any of the embodiments of the present disclosure, which is not limited here and will not be described in detail.

[0228] In the embodiment of the present disclosure, by indicating the beam of its own resources or other resources through the uplink beam information of the current resource, uplink beam indication across resources (such as BWP or cell) can be achieved, thereby saving resource overhead, avoiding resource waste, and optimizing the delay of uplink beam indication.

[0229] In the embodiments provided above, the methods provided in the embodiments of the present disclosure are described from the perspectives of network devices and terminal devices, respectively. To implement the various functions provided in the methods provided in the embodiments of the present disclosure, the network devices and terminal devices may include hardware structures and software modules, and the aforementioned functions may be implemented in the form of hardware structures, software modules, or hardware structures and software modules. Certain of the aforementioned functions may be implemented in the form of hardware structures, software modules, or hardware structures and software modules.

[0230] Please refer to Figure 8, which is a schematic diagram of the structure of a communication device 80 provided in an embodiment of the present disclosure. The communication device 80 shown in Figure 8 may include a transceiver module 801 and a processing module 802. The transceiver module 801 may include a sending module and / or a receiving module. The sending module is used to implement a sending function, and the receiving module is used to implement a receiving function. The transceiver module 801 can implement the sending function and / or the receiving function.

[0231] The communication device 80 may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. Alternatively, the communication device 80 may be a network device, a device in a network device, or a device that can be used in conjunction with a network device.

[0232] The communication device 80 is a network device: a transceiver module, used to send uplink beam indication information to the terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs include SRIs configured by non-first resources themselves; the transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

[0233] In one implementation, the transceiver module is further used to: receive capability information sent by the terminal device before sending the uplink beam indication information, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0234] In one implementation, the transceiver module is also used to: send configuration information to the terminal device, the configuration information includes an SRS resource set of a first resource and / or an SRS resource set of a second resource, the SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0235] In one implementation, the first resources include one or more uplink channels, and the second resources include one or more uplink channels other than the first resources.

[0236] In one possible implementation, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for other uplink channels in the first resource except the first uplink channel; or, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

[0237] In one possible implementation, the SRIs used by the two or more uplink channels in the first resource are derived from the SRI configured for the first uplink channel in the first resource;

[0238] Alternatively, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

[0239] In one possible implementation, the first resource is a first cell, and the second resource is a second cell;

[0240] Alternatively, the first resource is a first bandwidth part BWP, and the second resource is a second BWP.

[0241] In one implementation, the uplink beam indication information includes at least one of the following information: a resource identifier, the resource identifier indicating the first resource; and an SRI identifier.

[0242] In one possible implementation, the uplink beam indication information includes a BWP identifier and an SRI identifier, and the BWP identifier indicates a first BWP; or, the uplink beam indication information includes a cell identifier and an SRI identifier, and the cell identifier indicates other cells outside the service cell of the terminal device; or, the uplink beam indication information includes a cell identifier, a BWP identifier, and an SRI identifier.

[0243] In one implementation, the uplink beam indication information is carried by at least one of the following methods: radio resource control RRC signaling; media access control MAC control element CE command; downlink control information DCI signaling.

[0244] In one implementation, the transceiver module is specifically configured to receive data based on a target uplink receiving beam, where the target uplink receiving beam is a beam corresponding to the uplink beam indication information.

[0245] In one possible implementation, the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; or, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

[0246] The communication device 80 is a network device: a processing module, used to determine that the speed of the terminal device changes from a first speed to a second speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; a transceiver module, used to send first uplink beam indication information to the terminal device, the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs are derived from the SRI configured by the second resource, wherein the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; the transceiver module is also used to send and / or receive data based on a first target beam, and the first target beam is the beam corresponding to the first uplink beam indication information.

[0247] In one implementation, the processing module is also used to: determine whether the speed of the terminal device changes from the second speed to the first speed; the transceiver module is also used to send second uplink beam indication information to the terminal device, the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs are derived from the SRI configured by the first resource; the transceiver module is also used to send and / or receive data based on the second target beam, and the second target beam is the beam corresponding to the second uplink beam indication information.

[0248] The communication device 80 is a network device: the processing module is used to determine that the speed of the terminal device changes from the second speed to the first speed, wherein the first speed is lower than the first speed threshold, the second speed is higher than the second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; the transceiver module is used to send first uplink beam indication information to the terminal device, the first uplink beam indication information includes one or more spatial relationship information SRI and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs are derived from the SRI configured by the second resource, wherein the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam; the transceiver module is also used to send and / or receive data based on the first target beam, and the first target beam is the beam corresponding to the first uplink beam indication information.

[0249] In one implementation, the processing module is also used to: determine whether the speed of the terminal device changes from a first speed to a second speed; the transceiver module is also used to send second uplink beam indication information to the terminal device, the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs are derived from the SRI configured by the first resource; the transceiver module is also used to send and / or receive data based on the second target beam, and the second target beam is the beam corresponding to the second uplink beam indication information.

[0250] The communication device 80 is a network device: the processing module is used to determine whether the terminal device needs to perform beam switching; the transceiver module is used to send uplink beam indication information to the terminal device, wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs are derived from the SRI configured by the non-first resource itself; the transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

[0251] In one implementation, the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; or, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

[0252] The communication device 80 is a terminal device: the transceiver module is used to receive uplink beam indication information sent by the network device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, one or more SRIs are used to indicate the beam used on the first resource, and one or more SRIs include SRIs configured by non-first resources themselves; the transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

[0253] In one implementation, the transceiver module is further used to: send capability information to the network device before receiving the uplink beam indication information sent by the network device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

[0254] In one implementation, the transceiver module is also used to: receive configuration information sent by the network device, the configuration information includes a channel sounding reference signal SRS resource set of the first resource and / or an SRS resource set of the second resource, the SRS resource set of the first resource includes one or more SRS resources, the SRS resource set of the second resource includes one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

[0255] In a possible implementation, the first resources include one or more activated uplink channels, and the second resources include one or more uplink channels other than the first resources.

[0256] In one possible implementation, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for other uplink channels in the first resource except the first uplink channel; or, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

[0257] In one possible implementation, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the first uplink channel in the first resource; or, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

[0258] In one implementation, the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; or, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

[0259] In one implementation, the first resource is a first cell, and the second resource is a second cell; or, the first resource is a first bandwidth part BWP, and the second resource is a second BWP.

[0260] In one implementation, the uplink beam indication information includes at least one of the following information: a resource identifier, the resource identifier indicating the first resource; and an SRI identifier.

[0261] In one possible implementation, the uplink beam indication information includes a BWP identifier and an SRI identifier, and the BWP identifier indicates a first BWP; or, the uplink beam indication information includes a cell identifier and an SRI identifier, and the cell identifier indicates other cells outside the service cell of the terminal device; or, the uplink beam indication information includes a cell identifier, a BWP identifier, and an SRI identifier.

[0262] In one implementation, the uplink beam indication information is carried by at least one of the following methods: radio resource control RRC signaling; media access control MAC control element CE command; downlink control information DCI signaling.

[0263] In a possible implementation, the transceiver module is specifically configured to: transmit data based on a target uplink transmission beam, where the target uplink transmission beam is a beam corresponding to the uplink beam indication information.

[0264] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0265] Please refer to Figure 9, which is a schematic diagram of the structure of another communication device 90 provided in an embodiment of the present disclosure. Communication device 90 can be a network device or a terminal device, or a chip, chip system, or processor that supports the network device to implement the above method. It can also be a chip, chip system, or processor that supports the terminal device to implement the above method. This device can be used to implement the method described in the above method embodiment. For details, please refer to the description of the above method embodiment.

[0266] The communication device 90 may include one or more processors 901. The processor 901 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute computer programs, and process computer program data.

[0267] Optionally, the communication device 90 may further include one or more memories 902, on which a computer program 904 may be stored. The processor 901 executes the computer program 904 to cause the communication device 90 to perform the method described in the above method embodiment. Optionally, the memory 902 may also store data. The communication device 90 and the memory 902 may be provided separately or integrated together.

[0268] Optionally, the communication device 90 may further include a transceiver 905 and an antenna 906. The transceiver 905 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, and is configured to implement transceiver functions. The transceiver 905 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, and is configured to implement a transmitting function.

[0269] Optionally, the communication device 90 may further include one or more interface circuits 907. The interface circuit 907 is configured to receive code instructions and transmit the code instructions to the processor 901. The processor 901 executes the code instructions to enable the communication device 90 to execute the method described in the above method embodiment.

[0270] The communication device 90 is a network device: the transceiver 905 is used to execute steps 201 and 202 in FIG. 2 ; or execute steps 301 , 302 and 303 in FIG. 3 ; or execute steps 401 , 402 , 403 and 404 in FIG. 4 .

[0271] The communication device 90 is a terminal device: the transceiver 905 is used to execute steps 501 and 502 in Figure 5; or execute steps 601, 602 and 603 in Figure 6; or execute steps 701, 702, 703 and 704 in Figure 7.

[0272] In one implementation, processor 901 may include a transceiver for implementing receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated. The transceiver circuit, interface, or interface circuit may be used for reading and writing code / data, or may be used for transmitting or delivering signals.

[0273] In one implementation, the processor 901 may store a computer program that runs on the processor 901 and enables the communication device 90 to perform the method described in the above method embodiment. The computer program may be fixed in the processor 901, in which case the processor 901 may be implemented by hardware.

[0274] In one implementation, the communication device 90 may include a circuit that can implement the functions of sending, receiving, or communicating in the aforementioned method embodiments. The processor and transceiver described in the present disclosure can be implemented on an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0275] The communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in this disclosure is not limited thereto, and the structure of the communication device may not be limited to FIG9 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

[0276] (1) An independent integrated circuit (IC), or chip, or chip system or subsystem;

[0277] (2) a collection of one or more ICs, optionally including a storage component for storing data and computer programs;

[0278] (3) ASIC, such as modem;

[0279] (4) Modules that can be embedded in other devices;

[0280] (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

[0281] (6)Others, etc.

[0282] Those skilled in the art will also appreciate that the various illustrative logical blocks and steps listed in the embodiments of the present disclosure may be implemented by electronic hardware, computer software, or a combination of both. Whether such functionality is implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the described functionality for each specific application, but such implementation should not be construed as exceeding the scope of protection of the embodiments of the present disclosure.

[0283] An embodiment of the present disclosure also provides an uplink beam indication system, which includes the communication device as a terminal device and the communication device as a network device in the embodiment of Figure 8 above, or the system includes the communication device as a terminal device and the communication device as a network device in the embodiment of Figure 9 above.

[0284] The present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

[0285] The present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

[0286] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0287] Those skilled in the art will understand that the various numerical numbers such as first and second involved in the present disclosure are only for the convenience of description and are not used to limit the scope of the embodiments of the present disclosure, and also indicate the order of precedence.

[0288] The at least one in the present disclosure can also be described as one or more, and the multiple can be two, three, four or more, which is not limited in the present disclosure. In the embodiments of the present disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", and there is no order of precedence or size between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0289] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values ​​of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values ​​or representations of the parameters may also adopt other values ​​or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.

[0290] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

[0291] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.

[0292] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0293] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. An uplink beam indication method, characterized in that: The method is performed by a network device, and the method includes: Sending uplink beam indication information to a terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate the beams used on the first resource, and the one or more SRIs include SRIs that are not configured by the first resource itself; Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

2. The method according to claim 1, characterized in that The method further comprises: Before sending the uplink beam indication information, capability information sent by the terminal device is received, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Configuration information is sent to the terminal device, the configuration information including a channel sounding reference signal SRS resource set of the first resource and / or an SRS resource set of the second resource, the SRS resource set of the first resource including one or more SRS resources, the SRS resource set of the second resource including one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

4. The method according to claim 3, characterized in that The first resources include one or more uplink channels, and the second resources include one or more uplink channels except the first resources.

5. The method according to claim 4, characterized in that The SRI used by the first uplink channel in the first resource is derived from the SRI configured for other uplink channels in the first resource except the first uplink channel; Alternatively, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

6. The method according to claim 4, characterized in that The SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the first uplink channel in the first resource; Alternatively, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

7. The method according to any one of claims 3 to 6, characterized in that The first resource is a first cell, and the second resource is a second cell; Alternatively, the first resource is a first bandwidth part BWP, and the second resource is a second BWP.

8. The method according to any one of claims 1 to 7, characterized in that The uplink beam indication information includes at least one of the following information: a resource identifier, wherein the resource identifier indicates the first resource; The SRI identifier.

9. The method according to claim 8, characterized in that The uplink beam indication information includes a BWP identifier and the SRI identifier, and the BWP identifier indicates a first BWP; Alternatively, the uplink beam indication information includes a cell identifier and the SRI identifier, and the cell identifier indicates other cells other than the serving cell of the terminal device; Alternatively, the uplink beam indication information includes a cell identifier, the BWP identifier and the SRI identifier.

10. The method according to any one of claims 1 to 9, characterized in that The uplink beam indication information is carried in at least one of the following ways: Radio Resource Control (RRC) signaling; Media Access Control MAC Control Element CE command; Downlink control information DCI signaling.

11. The method according to claim 1, characterized in that The sending and / or receiving of data based on the target beam includes: Data is received based on a target uplink receiving beam, where the target uplink receiving beam is a beam corresponding to the uplink beam indication information.

12. The method according to any one of claims 3 to 11, characterized in that The beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; Alternatively, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

13. An uplink beam indication method, characterized in that: The method is performed by a network device, and the method includes: Determine that the speed of the terminal device changes from a first speed to a second speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; Sending first uplink beam indication information to the terminal device, where the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs are derived from an SRI configured by a second resource, where the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; Data is sent and / or received based on a first target beam, where the first target beam is a beam corresponding to the first uplink beam indication information.

14. The method according to claim 13, characterized in that The method further comprises: determining that the speed of the terminal device changes from the second speed to the first speed; Sending second uplink beam indication information to the terminal device, where the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on a first resource, and where the one or more SRIs are derived from an SRI configured by the first resource; Data is sent and / or received based on a second target beam, where the second target beam is a beam corresponding to the second uplink beam indication information.

15. An uplink beam indication method, characterized in that: The method is performed by a network device, and the method includes: Determine that the speed of the terminal device changes from a second speed to a first speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; Sending first uplink beam indication information to the terminal device, where the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs are derived from an SRI configured by a second resource, where the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam; Data is sent and / or received based on a first target beam, where the first target beam is a beam corresponding to the first uplink beam indication information.

16. The method according to claim 15, characterized in that The method further comprises: Determining that the speed of the terminal device changes from the first speed to the second speed; Sending second uplink beam indication information to the terminal device, where the second uplink beam indication information includes one or more SRIs and / or SRI identifiers, where the one or more SRIs are used to indicate a beam used on a first resource, and where the one or more SRIs are derived from an SRI configured by the first resource; Data is sent and / or received based on a second target beam, where the second target beam is a beam corresponding to the second uplink beam indication information.

17. An uplink beam indication method, characterized in that: The method is performed by a network device, and the method includes: Determining that the terminal device needs to perform beam switching; Sending uplink beam indication information to the terminal device, wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate the beams used on the first resource, and the one or more SRIs are derived from the SRIs configured by the first resource itself; Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

18. The method according to claim 17, characterized in that The beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; Alternatively, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

19. An uplink beam indication method, characterized in that: The method is performed by a terminal device, and the method includes: Receiving uplink beam indication information sent by a network device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs include an SRI that is not configured by the first resource itself; Data is sent and / or received based on a target beam, where the target beam is the beam corresponding to the uplink beam indication information.

20. The method of claim 19, wherein: The method further comprises: Before receiving the uplink beam indication information sent by the network device, capability information is sent to the network device, wherein the capability information is used to indicate whether the terminal device supports cross-resource uplink beam indication.

21. The method according to claim 19 or 20, characterized in that The method further comprises: Receive configuration information sent by the network device, the configuration information including a channel sounding reference signal SRS resource set of the first resource and / or an SRS resource set of the second resource, the SRS resource set of the first resource including one or more SRS resources, the SRS resource set of the second resource including one or more SRS resources, one SRI corresponds to one SRS resource, one SRS resource corresponds to one uplink beam, and the target uplink beam corresponding to the SRS and the SRS resource corresponding to the SRS use the same spatial filter.

22. The method according to claim 21, characterized in that The first resources include one or more activated uplink channels, and the second resources include one or more uplink channels except the first resources.

23. The method of claim 22, wherein: The SRI used by the first uplink channel in the first resource is derived from the SRI configured for other uplink channels in the first resource except the first uplink channel; Alternatively, the SRI used by the first uplink channel in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

24. The method of claim 22, wherein: The SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the first uplink channel in the first resource; Alternatively, the SRI used by two or more uplink channels in the first resource is derived from the SRI configured for the second uplink channel in the second resource.

25. The method according to any one of claims 21 to 24, characterized in that The first resource is a first cell, and the second resource is a second cell; Alternatively, the first resource is a first bandwidth part BWP, and the second resource is a second BWP.

26. The method according to any one of claims 19 to 25, characterized in that The uplink beam indication information includes at least one of the following information: a resource identifier, wherein the resource identifier indicates the first resource; The SRI identifier.

27. The method of claim 26, wherein: The uplink beam indication information includes a BWP identifier and the SRI identifier, and the BWP identifier indicates a first BWP; Alternatively, the uplink beam indication information includes a cell identifier and the SRI identifier, and the cell identifier indicates other cells other than the serving cell of the terminal device; Alternatively, the uplink beam indication information includes a cell identifier, the BWP identifier and the SRI identifier.

28. The method according to any one of claims 19 to 27, characterized in that The uplink beam indication information is carried in at least one of the following ways: Radio Resource Control (RRC) signaling; Media Access Control MAC Control Element CE command; Downlink control information DCI signaling.

29. The method of claim 19, wherein: The sending and / or receiving of data based on the target beam includes: Data is sent based on a target uplink transmission beam, where the target uplink transmission beam is a beam corresponding to the uplink beam indication information.

30. The method according to any one of claims 21 to 29, characterized in that The beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; Alternatively, the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam.

31. A communication device, characterized in that: include: A transceiver module, configured to send uplink beam indication information to a terminal device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs include an SRI not configured by the first resource itself; The transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

32. A communication device, characterized in that: include: A processing module, configured to determine that a speed of a terminal device changes from a first speed to a second speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; a transceiver module, configured to send first uplink beam indication information to the terminal device, wherein the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, wherein the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs are derived from an SRI configured by a second resource, wherein the beam indicated by the SRI configured by the first resource is a narrow beam, and the beam indicated by the SRI configured by the second resource is a wide beam; The transceiver module is also used to send and / or receive data based on a first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

33. A communication device, characterized in that: include: A processing module, configured to determine that the speed of the terminal device changes from a second speed to a first speed, wherein the first speed is lower than a first speed threshold, the second speed is higher than a second speed threshold, and the first speed threshold is less than or equal to the second speed threshold; a transceiver module, configured to send first uplink beam indication information to the terminal device, wherein the first uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, wherein the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs are derived from an SRI configured by a second resource, wherein the beam indicated by the SRI configured by the first resource is a wide beam, and the beam indicated by the SRI configured by the second resource is a narrow beam; The transceiver module is also used to send and / or receive data based on a first target beam, where the first target beam is the beam corresponding to the first uplink beam indication information.

34. A communication device, characterized in that: include: A processing module, used for determining that a terminal device needs to perform beam switching; A transceiver module, configured to send uplink beam indication information to the terminal device, wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate the beams used on the first resource, and the one or more SRIs are derived from the SRIs configured by the first resource itself; The transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

35. A communication device, characterized in that: include: A transceiver module, configured to receive uplink beam indication information sent by a network device; wherein the uplink beam indication information includes one or more spatial relationship information SRIs and / or SRI identifiers, the one or more SRIs are used to indicate a beam used on a first resource, and the one or more SRIs include an SRI not configured by the first resource itself; The transceiver module is also used to send and / or receive data based on the target beam, and the target beam is the beam corresponding to the uplink beam indication information.

36. A communication device, characterized in that: The device includes a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program stored in the memory so that the device performs the method according to any one of claims 1 to 12, or the device performs the method according to claim 13 or 14, or the device performs the method according to claim 15 or 16, or the device performs the method according to claim 17 or 18, or the device performs the method according to any one of claims 19 to 30.

37. A computer-readable storage medium storing instructions which, when executed, implement the method according to any one of claims 1 to 12, or the method according to claim 13 or 14, or the method according to claim 15 or 16, or the method according to claim 17 or 18, or the method according to any one of claims 19 to 30.

Images