CN114126055A

CN114126055A - Beam indication method, network equipment, terminal, device and storage medium

Info

Publication number: CN114126055A
Application number: CN202010888338.0A
Authority: CN
Inventors: 李磊
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-03-01

Abstract

The embodiment of the application provides a beam indicating method, network equipment, a terminal, a device and a storage medium, wherein the method comprises the following steps: determining Sounding Reference Signal (SRS) spatial relationship information based on a target Synchronization Signal Block (SSB) beam selected by a terminal in a cell search process; and sending the SRS spatial relationship information to the terminal so that the terminal can determine the transmitting beam of the uplink SRS according to the SRS spatial relationship information. According to the beam indicating method, the network equipment, the terminal, the device and the storage medium provided by the embodiment of the application, SRS spatial relation information is determined based on a target SSB beam selected by the terminal in a cell searching process, SRS resources used for uplink beam management are reasonably and efficiently configured by using prior information measured by a downlink beam, and therefore the time for uplink beam scanning is shortened and the SRS resources of a cell are saved.

Description

Beam indication method, network equipment, terminal, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a beam indicating method, a network device, a terminal, an apparatus, and a storage medium.

Background

Beam management is a key technology in the 5th generation mobile communication (5G) system.

In the related art, after the terminal completes access, the uplink base station and the terminal may complete the whole process of uplink beam management through a Sounding Reference Signal (SRS). The base station may allocate a plurality of SRS resources (resources) for beam management to the terminal through Radio Resource Control (RRC) signaling. In the SRS Resource, a transmission beam of the SRS may be indicated by configuring a reference signal (referrals) parameter of SRS spatial relationship information (SRS-spatial relationship info). In the existing specification, it is pointed out that after a referral Signal of SRS-SpatialRelationInfo is associated with a Synchronization Signal Block (SSB), a terminal can implement uplink non-codebook transmission of the SRS Resource, and a transmission beam of the terminal is derived from downlink measurement of an SSB Index (SSB-Index) pointed by the referral Signal of the SRS Resource. By configuring multiple SRS resources, SSB beams are associated one by one.

However, this method requires a long beam scanning time, resulting in a technical problem of low uplink beam scanning efficiency.

Disclosure of Invention

The embodiment of the application provides a beam indicating method, network equipment, a terminal, a device and a storage medium, which are used for solving the technical problem that in the prior art, the scanning efficiency of an uplink beam is low.

In a first aspect, an embodiment of the present application provides a beam indication method, including:

determining Sounding Reference Signal (SRS) spatial relationship information based on a target Synchronization Signal Block (SSB) beam selected by a terminal in a cell search process;

and sending the SRS spatial relationship information to the terminal so that the terminal can determine the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

Optionally, according to the beam indication method in an embodiment of the present application, the determining, based on a target synchronization signal block SSB beam selected by a terminal in a cell search process, the SRS spatial relationship information includes:

determining i SSB beams to be associated based on the target SSB beam; i is an integer greater than 1;

and associating the i SSB beams to be associated with SRS resources one by one to generate SRS spatial relationship information.

Optionally, according to the beam indicating method of an embodiment of the present application, the determining i SSB beams to be associated based on the target SSB beam specifically includes:

determining a value of i based on an uplink beam management capability of the terminal and an SSB beam set; the SSB beam set is a set of SSB beams maintained by network equipment;

and screening out i SSB wave beams to be associated from the SSB wave beam set based on the target SSB wave beam.

Optionally, according to the beam indicating method in an embodiment of the present application, the value of i is determined based on the uplink beam management capability of the terminal and the SSB beam set, and is expressed by the following formula:

i＝min(K*w,L)

wherein i is the number of the SSB beams to be associated, K is the number of the SSB beams in the SSB beam set, w is a preset constant, and L is a terminal capability parameter value for representing the uplink beam management capability of the terminal.

Optionally, according to the beam indicating method of an embodiment of the present application, the screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam specifically includes:

determining a distance between the target SSB beam and each SSB beam in the set of SSB beams;

and screening i SSB beams with the minimum distance from the target SSB beam from the SSB beam set to serve as the SSB beams to be associated.

Optionally, according to the beam indication method in an embodiment of the present application, before determining the SRS spatial relationship information based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the method further includes:

and determining the target SSB wave beam according to the sending time of the PRACH information initially accessed by the terminal.

Optionally, according to the beam indicating method in an embodiment of the present application, the target SSB beam is an SSB beam with a maximum signal strength value among SSB beams selected by the terminal in a cell search process.

In a second aspect, an embodiment of the present application further provides a beam indication method, including:

receiving Sounding Reference Signal (SRS) spatial relationship information sent by network equipment; the SRS spatial relationship information is determined by the network equipment based on a target synchronization signal block SSB wave beam selected by a terminal in a cell search process;

and determining the transmitting beam of the uplink SRS according to the SRS space relation information.

In a third aspect, an embodiment of the present application further provides a network device, including a memory, a transceiver, and a processor;

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

Optionally, according to the network device in an embodiment of the present application, the determining, based on a target synchronization signal block SSB beam selected by a terminal in a cell search process, the SRS spatial relationship information includes:

Optionally, according to the network device in an embodiment of the present application, the determining, based on the target SSB beam, i SSB beams to be associated specifically includes:

Optionally, according to the network device in an embodiment of the present application, the value of i is determined based on the uplink beam management capability of the terminal and the SSB beam set, and is expressed by the following formula:

i＝min(K*w,L)

Optionally, according to the network device in an embodiment of the present application, the screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam specifically includes:

Optionally, according to the network device in an embodiment of the present application, before determining the SRS spatial relationship information based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the method further includes:

Optionally, according to the network device in an embodiment of the present application, the target SSB beam is an SSB beam with a maximum signal strength value among SSB beams selected by the terminal in a cell search process.

In a fourth aspect, an embodiment of the present application further provides a terminal, including a memory, a transceiver, and a processor;

Optionally, according to the terminal in an embodiment of the present application, the target SSB beam is an SSB beam with a maximum signal strength value among SSB beams selected by the terminal in a cell search process.

In a fifth aspect, an embodiment of the present application further provides a beam indicating apparatus, including:

the first determining module is used for determining Sounding Reference Signal (SRS) spatial relationship information based on a target Synchronization Signal Block (SSB) wave beam selected by a terminal in a cell searching process;

and the sending module is used for sending the SRS spatial relationship information to the terminal so that the terminal can determine the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

In a sixth aspect, an embodiment of the present application further provides a beam indicating apparatus, including:

the receiving module is used for receiving Sounding Reference Signal (SRS) spatial relationship information sent by network equipment; the SRS spatial relationship information is determined by the network equipment based on a target synchronization signal block SSB wave beam selected by a terminal in a cell search process;

and the second determining module is used for determining the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

In a seventh aspect, this application embodiment further provides a processor-readable storage medium, which stores a computer program for causing a processor to execute the steps of the beam indicating method according to the first aspect or the second aspect.

According to the beam indicating method, the network equipment, the terminal, the device and the storage medium provided by the embodiment of the application, SRS spatial relation information is determined based on a target SSB beam selected by the terminal in a cell searching process, SRS resources used for uplink beam management are reasonably and efficiently configured by using prior information measured by a downlink beam, and therefore the time for uplink beam scanning is shortened and the SRS resources of a cell are saved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a beam indication method according to an embodiment of the present application;

fig. 2 is a second schematic diagram of a beam indicating method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 5 is a schematic diagram of a beam indicating apparatus according to an embodiment of the present application;

fig. 6 is a second schematic diagram of a beam indicating apparatus according to an embodiment of the present application.

Detailed Description

Beam management is a key technology in 5G systems. How the base station assists the terminal to quickly and accurately complete uplink beam scanning through efficient and reasonable parameter configuration is also an important method in uplink beam management.

In the 5G wireless communication system, after the terminal completes access, the uplink base station and the terminal may perform beam scanning, beam detection, and beam indication through the SRS, completing the entire process of uplink beam management. The base station may allocate M sets of SRS resources (SRS Resource sets) dedicated to beam management to the terminal through RRC signaling, where a Set of SRS Resource sets may include N SRS resources. Here, M and N are related to a terminal capability parameter uplinkBeamManagement. In the SRS Resource for beam management, a transmission beam of the SRS may be indicated by configuring a referrals parameter of SRS-SpatialRelationInfo.

In the existing specification, after the referrence signal of the SRS-SpatialRelationInfo is associated with the SSB, the terminal can implement uplink non-codebook transmission of the SRS Resource, and a transmission beam of the terminal is derived from downlink measurement of the SSB-Index pointed by the referrence signal of the SRS Resource. The same transmission beam may be used between the SRS resources for beam management, or different transmission beams may be used, that is, depending on whether the downlink reference signals associated with the SRS resources are the same or not.

On one hand, the base station needs to reasonably associate the SSB with the SRS Resource for beam management, so that the effectiveness and the high efficiency of the transmitted beam during the uplink beam scanning of the terminal are ensured, the time for the uplink beam scanning is shortened, and the beam training process is quickly completed. On the other hand, the total resource of the cell SRS is limited, and avoiding invalid or inefficient resource allocation is also a technical problem to be solved by the base station.

The existing implementation scheme is that a base station associates the SSB beams one by configuring multiple SRS resources. This solution may be limited on the one hand by the terminal capabilities (measured by the terminal capability parameter uplinkbeammagement). If the number of SRS resources used for beam management is less than the number of SSB beams in a cell, the SRS resources cannot be associated one by one. On the other hand, ineffective or inefficient beam scanning increases the time of the beam training process and wastes the SRS resource of the cell, thereby affecting the user capacity of the cell.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Based on the above technical problem, an embodiment of the present application provides an uplink beam indicating/scanning method based on SSB measurement and feedback, aiming at improving uplink beam scanning efficiency, saving SRS resources of a cell, and improving user capacity of the cell.

Fig. 1 is a schematic diagram of a beam indicating method according to an embodiment of the present disclosure, and as shown in fig. 1, an execution subject of the beam indicating method according to the embodiment of the present disclosure may be a network device, for example, a base station, and the following description takes the base station as the network device as an example. The method comprises the following steps:

step 101, determining Sounding Reference Signal (SRS) spatial relationship information based on a target Synchronization Signal Block (SSB) beam selected by a terminal in a cell search process.

Specifically, the base station determines the SRS-SpatialRelationInfo based on the target SSB beam selected by the terminal in the cell search process.

The target SSB beam may be an SSB beam with the largest signal strength value among the SSB beams selected by the terminal in the cell search process. The SSB beam with the largest signal-to-noise ratio among the SSB beams selected by the terminal in the cell search process may be used.

And 102, sending the SRS spatial relationship information to the terminal so that the terminal can determine the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

Specifically, after determining the SRS-SpatialRelationInfo, the base station transmits the SRS-SpatialRelationInfo to the terminal, so that the terminal can determine the transmission beam of the uplink SRS according to the SRS-SpatialRelationInfo.

For example, the base station may transmit the SRS-SpatialRelationInfo to the terminal through RRC signaling.

After receiving the SRS-spatialRelationInfo, the terminal analyzes SSB-Index, and performs channel detection on the SSBs one by one to acquire the transmitting beam information of the uplink SRS.

According to the beam indicating method provided by the embodiment of the application, SRS spatial relationship information is determined based on the target SSB beam selected by the terminal in the cell searching process, SRS resources used for uplink beam management are reasonably and efficiently configured by using prior information measured by downlink beams, the time for uplink beam scanning is shortened, and the SRS resources of the cell are saved.

Based on any of the above embodiments, the determining, based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the SRS spatial relationship information specifically includes:

Specifically, in the embodiment of the present application, the specific step of the base station determining the SRS-SpatialRelationInfo based on the target SSB beam selected by the terminal in the cell search process is as follows:

firstly, determining i SSB beams to be associated based on a target SSB beam; i is an integer greater than 1.

For example, the base station may screen i SSB beams with the minimum distance from the target SSB beam as the SSB beams to be associated from the SSB beam Set (SSB Burst Set) maintained by the base station according to the distance between the base station and the target SSB beam in the horizontal coordinate system.

The base station can screen out i SSB beams with the minimum distance to the target SSB beam from the SSB beam set maintained by the base station as the SSB beams to be associated according to the distance between the base station and the target SSB beam in the vertical coordinate system.

The base station can select i SSB beams with the minimum distance to the target SSB beam from the SSB beam set maintained by the base station as the SSB beams to be associated according to the distance between the base station and the target SSB beam in the horizontal and vertical two-dimensional coordinate systems.

Then, the base station associates the i SSB beams to be associated with the SRS resource one by one to generate SRS-spatialRelationInfo.

That is, the value of the referral signal parameter in the SRS-spatialRelationInfo is configured to be the value of the SSB-Index of the SSB beam to be associated.

The beam indicating method provided by the embodiment of the application determines i SSBs to be associated based on the target SSB beam, further shortens the time of uplink beam scanning, and saves the SRS resources of a cell.

Based on any of the above embodiments, the determining i SSB beams to be associated based on the target SSB beam specifically includes:

Specifically, in the embodiment of the present application, the capability of the terminal and the number of SSB beams in the SSB beam set are considered when determining the SSB beams to be associated. The specific steps for determining i SSB beams to be associated based on the target SSB beam are as follows:

first, a value of i is determined based on an uplink beam management capability of the terminal and the SSB beam set. The set of SSB beams is a set of SSB beams maintained by the network device.

For example, the minimum value between the terminal capability parameter value and the number of SSB beams in the SSB beam set may be selected as the value of i.

Or calculating an intermediate value according to the number of the SSB beams in the SSB beam set and a preset constant, and then selecting the minimum value between the terminal capability parameter value and the intermediate value as the value of i.

Then, the base station screens out i SSB beams to be associated from the SSB beam set based on the target SSB beam.

For example, the base station may select i SSB beams having the smallest distance to the target SSB beam from the SSB beam set maintained by the base station as the SSB beams to be associated according to the distance to the target SSB beam in the horizontal coordinate system.

According to the beam indicating method provided by the embodiment of the application, the capacity of the terminal and the number of SSB beams in the SSB beam set are considered, the reasonable SSB beams to be associated are determined, the time for scanning the uplink beams is further shortened, and the SRS resources of the cell are saved.

Based on any of the above embodiments, the value of i is determined based on the uplink beam management capability of the terminal and the SSB beam set, and is expressed by the following formula:

i＝min(K*w,L)

Specifically, in the embodiment of the present application, the base station calculates an intermediate value according to the number of SSB beams in the SSB beam set and a preset constant, and then selects a minimum value between a terminal capability parameter value and the intermediate value as a value of i. Is formulated as follows:

i＝min(K*w,L)

wherein i is the number of the SSB beams to be associated, K is the number of the SSB beams in the SSB beam set, w is a preset constant, and L is a terminal capability parameter value for representing the uplink beam management capability of the terminal. The value of w is related to the carrier frequency, the channel environment, the number of SSB beams, etc., and can be configured empirically, where w is 0< w ≦ 1. For example, the configuration is 0.5.

According to the beam indicating method provided by the embodiment of the application, an intermediate value is calculated according to the number of SSB beams in an SSB beam set and a preset constant, then the minimum value between a terminal capacity parameter value and the intermediate value is selected as a value of i, a reasonable SSB beam to be associated is determined, the time of uplink beam scanning is further shortened, and the SRS resource of a cell is saved.

Based on any of the above embodiments, the screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam specifically includes:

Specifically, in the embodiment of the present application, i SSB beams most adjacent to a target SSB beam are sequentially ordered with the target SSB beam as a center, and are associated with SRS resources for uplink beam management one by one.

The specific steps of screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam are as follows:

first, the base station determines the distance between the target SSB beam and each SSB beam in the set of SSB beams after determining the value of i.

The base station can calculate the distances between all SSB beams and the target beam one by one in horizontal and vertical two-dimensional coordinates according to the preset beam angles of K SSBs in the SSB Burst Set.

And sequencing the SSB-Index of the SSB wave beam according to the distance from small to large, and outputting an array BeamBuffer which comprises K elements, wherein the value range of the elements is [0, K-1 ].

Then, the i SSB beams with the minimum distance to the target SSB beam are screened out from the SSB beam set as the SSB beams to be associated.

Namely, the first i elements are selected from the group of beambuffers to obtain the SSB-Index of the SSB beam to be associated, and an SSB candidate set for uplink beam scanning is determined.

The beam indicating method provided by the embodiment of the application takes a target SSB beam as a center, sequentially sequences the i SSB beams which are most adjacent to the target SSB beam, associates the i SSB beams with SRS resources used for uplink beam management one by one, determines reasonable SSB beams to be associated, further shortens the time of uplink beam scanning, and saves the SRS resources of a cell.

Based on any of the above embodiments, before determining the SRS spatial relationship information based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the method further includes:

Specifically, in the embodiment of the present application, before determining SRS-SpatialRelationInfo based on a target SSB beam selected by a terminal in a cell search process, a base station needs to determine the target SSB beam according to a transmission time of Physical Random Access Channel (PRACH) information initially accessed by the terminal.

According to the beam indicating method provided by the embodiment of the application, the PRACH time of initial access of the terminal is utilized to obtain the target SSB beam selected by the terminal in the cell searching process, the time of uplink beam scanning is further shortened, and the SRS resource of the cell is saved.

Based on any of the above embodiments, the target SSB beam is an SSB beam with the largest signal strength value among SSB beams selected by the terminal in the cell search process.

Specifically, in the embodiment of the present application, the target SSB beam is an SSB beam with the largest signal strength value among the SSB beams selected by the terminal in the cell search process.

According to the beam indicating method provided by the embodiment of the application, the strongest SSB-Index selected in the cell search is used as an important basis for transmitting the beam by the uplink SRS, so that the time for scanning the uplink beam is further shortened, and the SRS resource of the cell is saved.

Based on any of the above embodiments, fig. 2 is a second schematic diagram of a beam indicating method provided in the embodiment of the present application, and as shown in fig. 2, an implementation subject of the beam indicating method provided in the embodiment of the present application may be a terminal. The method comprises the following steps:

step 201, receiving Sounding Reference Signal (SRS) spatial relationship information sent by a network device; the SRS spatial relationship information is determined by the network equipment based on a target synchronization signal block SSB wave beam selected by a terminal in a cell search process;

and step 202, determining the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

Specifically, a beam indication method provided in this embodiment is the same as the method described in the corresponding embodiment, and can achieve the same technical effects, except that the execution main bodies are different, and detailed descriptions of the same parts and beneficial effects in this embodiment as those in the corresponding method embodiment are omitted here.

Based on any of the above embodiments, fig. 3 is a schematic structural diagram of a network device provided in an embodiment of the present application, and as shown in fig. 3, the network device includes a memory 320, a transceiver 300, and a processor 310:

a memory 320 for storing a computer program; a transceiver 300 for transceiving data under the control of the processor 310; a processor 310 for reading the computer program in the memory 320 and performing the following operations:

And in particular transceiver 300, for receiving and transmitting data under the control of processor 310.

Wherein in fig. 3, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 310, and various circuits, represented by memory 320, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 300 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 310 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 310 in performing operations.

The processor 310 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

It should be noted that, the network device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

Specifically, the network device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

i＝min(K*w,L)

Based on any of the above embodiments, fig. 4 is a schematic structural diagram of a terminal provided in the embodiments of the present application, and as shown in fig. 4, the terminal includes a memory 420, a transceiver 400, and a processor 410:

a memory 420 for storing a computer program; a transceiver 400 for transceiving data under the control of the processor 410; a processor 410 for reading the computer program in the memory 420 and performing the following operations:

And in particular transceiver 400, for receiving and transmitting data under the control of processor 410.

Where in fig. 4, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 410 and various circuits of memory represented by memory 420 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 400 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. For different user devices, the user interface 430 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 410 in performing operations.

Optionally, the processor 410 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also have a multi-core architecture.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory may also be physically separated.

It should be noted that, the terminal provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Specifically, the terminal provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

Based on any of the above embodiments, fig. 5 is a schematic diagram of a beam indicating apparatus provided in an embodiment of the present application, and as shown in fig. 5, the beam indicating apparatus includes a first determining module 501 and a sending module 502, where:

the first determining module 501 is configured to determine, based on a target synchronization signal block SSB beam selected by a terminal in a cell search process, sounding reference signal SRS spatial relationship information; the sending module 502 is configured to send the SRS spatial relationship information to the terminal, so that the terminal determines a transmission beam of an uplink SRS according to the SRS spatial relationship information.

Specifically, the beam indicating device provided in the embodiment of the present application can implement all the method steps implemented by the method embodiment and achieve the same technical effects, and details of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

determining a value of i based on an uplink beam management capability of the terminal and an SSB beam set; the set of SSB beams is a set of SSB beams maintained by a beam indicating device;

i＝min(K*w,L)

Based on any of the above embodiments, fig. 6 is a second schematic diagram of a beam indicating apparatus provided in the present embodiment, as shown in fig. 6, the beam indicating apparatus includes a receiving module 601 and a second determining module 602, where:

the receiving module 601 is configured to receive sounding reference signal SRS spatial relationship information sent by a network device; the SRS spatial relationship information is determined by the network equipment based on a target synchronization signal block SSB wave beam selected by a terminal in a cell search process; the second determining module 602 is configured to determine a transmission beam of an uplink SRS according to the SRS spatial relationship information.

It should be noted that, in the foregoing embodiments of the present application, the division of the units/modules is schematic, and is only a logic function division, and another division manner may be used in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

Based on any one of the foregoing embodiments, an embodiment of the present application further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, where the computer program is configured to cause the processor to execute the method provided in each of the foregoing embodiments, and the method includes:

determining Sounding Reference Signal (SRS) spatial relationship information based on a target Synchronization Signal Block (SSB) beam selected by a terminal in a cell search process; and sending the SRS spatial relationship information to the terminal so that the terminal can determine the transmitting beam of the uplink SRS according to the SRS spatial relationship information.

Or comprises the following steps:

receiving Sounding Reference Signal (SRS) spatial relationship information sent by network equipment; the SRS spatial relationship information is determined by the network equipment based on a target synchronization signal block SSB wave beam selected by a terminal in a cell search process; and determining the transmitting beam of the uplink SRS according to the SRS space relation information.

It should be noted that: the processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

In addition, it should be noted that: in the embodiment of the present application, the term "and/or" describes an association relationship of associated objects, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a long term evolution (long term evolution, LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a universal mobile system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Mobile Access (WiMAX) system, a New Radio network (NR 5) system, etc. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5GS), and the like.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or another processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be called a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN). Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment of the present application.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, may be a 5G Base Station (gbb) in a 5G network architecture (next evolution System), may be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico Base Station), and the like, which are not limited in the embodiments of the present application. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for beam indication, comprising:

2. The method of claim 1, wherein the determining the SRS spatial relationship information based on the target synchronization signal block SSB beam selected by the terminal in the cell search process specifically comprises:

3. The beam indicating method according to claim 2, wherein the determining i SSB beams to be associated based on the target SSB beam specifically comprises:

4. The beam indicating method of claim 3, wherein the value of i is determined based on the uplink beam management capability of the terminal and the SSB beam set, and is formulated as follows:

i＝min(K*w,L)

5. The beam indicating method according to claim 3, wherein the screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam specifically comprises:

6. The method of any one of claims 1 to 5, wherein before determining SRS spatial relationship information based on a target Synchronization Signal Block (SSB) beam selected by a terminal in a cell search process, the method further comprises:

7. The method of any of claims 1-5, wherein the target SSB beam is an SSB beam with the largest signal strength value among SSB beams selected by the terminal in the cell search process.

8. A method for beam indication, comprising:

9. The method of claim 8, wherein the target SSB beam is an SSB beam with a maximum signal strength value among SSB beams selected by the terminal in the cell search process.

10. A network device comprising a memory, a transceiver, a processor;

11. The network device of claim 10, wherein the determining, based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the SRS spatial relationship information specifically includes:

12. The network device of claim 11, wherein the determining i SSB beams to be associated based on the target SSB beam specifically comprises:

13. The network device of claim 12, wherein the value of i is determined based on uplink beam management capabilities of the terminal and SSB beam sets, and is formulated as follows:

i＝min(K*w,L)

14. The network device according to claim 12, wherein the screening out i SSB beams to be associated from the SSB beam set based on the target SSB beam specifically comprises:

15. The network device according to any of claims 10-14, wherein before determining the SRS spatial relationship information based on the target synchronization signal block SSB beam selected by the terminal in the cell search process, the method further comprises:

16. The network device according to any of claims 10-14, wherein the target SSB beam is an SSB beam with a largest signal strength value among SSB beams selected by the terminal in the cell search process.

17. A terminal comprising a memory, a transceiver, a processor;

18. The terminal of claim 17, wherein the target SSB beam is an SSB beam with a largest signal strength value among SSB beams selected by the terminal in a cell search procedure.

19. A beam indicating apparatus, comprising:

20. A beam indicating apparatus, comprising:

21. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to perform the method of any one of claims 1 to 9.