WO2022052107A1

WO2022052107A1 - Method for determining transmit beam, device, and storage medium

Info

Publication number: WO2022052107A1
Application number: PCT/CN2020/115087
Authority: WO
Inventors: 杜冬阳
Original assignee: 深圳传音控股股份有限公司
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2022-03-17
Also published as: CN116235423A

Abstract

Embodiments of the present application provide a method of determining a transmit beam, a device, and a storage medium. The method is applied to a network device comprising a first TRP and at least one second TRP, and comprises: determining a first beam currently connected to a first TRP and a terminal device, the terminal device being connected to anetwork device by means of the first TRP and a second TRP; and determining, according to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP. The present application improves the coverage of a transmit beam for a terminal device, avoids frequent beam adjustments when the position of the terminal device changes, reduces system signaling waste, and improves system communication efficiency.

Description

Method, device and storage medium for determining transmit beam

technical field

The present application relates to communication technologies, and in particular, to a method, device and storage medium for determining a transmission beam.

Background technique

In 5G New Radio (NR), due to the application of beam-based large-scale antenna arrays, the system can form one or at least one highly directional beam, especially in high-frequency scenarios. This method can reduce interference while increasing the coverage area of the system.

In a multi-transmit receive point (TRP) scenario, the base station is equipped with at least one TRP, and each TRP can be placed centrally or separately. Each TRP needs to adjust the beam according to the movement of the terminal. so that the direction of the transmit beam is always aimed at the moving terminal. The terminal equipment needs to monitor the quality of at least one beam in real time, and report the measurement result, and the base station determines the transmit beam adjusted by different TRPs according to the report result. In high-frequency systems, due to the narrow coverage of each beam, when the terminal equipment moves rapidly, frequent beam adjustments may be involved, resulting in frequent signaling interactions between the terminal equipment and the base station, which in turn leads to poor system performance. serious decline.

Therefore, there is an urgent need for a solution to solve the problem that the system needs to adjust the beam frequently in a high frequency multi-TRP scenario.

The preceding statements are intended to provide general background information and may not constitute prior art.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method, a device, and a storage medium for determining a transmit beam, so as to solve the problem that a system in a high-frequency multi-TRP scenario needs to adjust the beam frequently.

In a first aspect, an embodiment of the present application provides a method for determining a transmit beam, which is applied to a network device, where the network device includes a first TRP and at least one second TRP, including:

Determine the first beam that the first TRP is currently connected with terminal equipment, and the terminal equipment is connected with the network equipment by the first TRP and the second TRP;

According to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP are determined.

In a possible implementation manner, the combined coverage of the first transmit beam and the second transmit beam is greater than the coverage of the first beam.

In a possible implementation manner, the determining of the first beam currently connected between the first TRP and the terminal device includes:

receiving a beam measurement result of the first TRP from the terminal device;

The first beam is determined according to the beam measurement result.

In one possible implementation,

The number of the first transmit beams is one or more; and/or,

The number of the second transmit beams is one or more.

In a possible implementation manner, determining the first transmit beam of the first TRP and the second transmit beam of the second TRP according to the first beam, including:

Obtain first spatial information of at least one transmit beam of the first TRP and second spatial information of at least one transmit beam of the second TRP, wherein the at least one transmit beam of the first TRP includes the first a beam;

determining a second beam in at least one beam of the second TRP according to the first spatial information, the second spatial information and the first beam;

The first transmit beam and the second transmit beam are determined based on the first beam and the second beam.

In a possible implementation manner, the coverage areas of the first beam and the second beam are the same.

In a possible implementation manner, determining a second beam in at least one beam of the second TRP according to the first spatial information, the second spatial information and the first beam, including:

Obtain at least one pair of beam correspondences of at least one TRP according to the first spatial information and the second spatial information, wherein each pair of beam correspondences indicates one beam of the first TRP and a beam of the second TRP a beam;

The second beam is determined according to the beam correspondence and the first beam.

In a possible implementation manner, the coverage ranges of the two beams indicated by the correspondence of each pair of beams are the same.

In a possible implementation manner, the determining the first transmit beam and the second transmit beam according to the first beam and the second beam includes:

determining the first transmit beam according to the first beam;

The second transmit beam is determined from the second beam.

In a possible implementation manner, the first spatial information is used to indicate a first arrangement relationship of at least one transmit beam of the first TRP in a spatial position or a coverage direction; the second spatial information is used to indicate A second arrangement relationship of at least one transmit beam of the second TRP in a spatial position or a coverage direction.

In a possible implementation manner, for any beam i in the at least one transmit beam of the first TRP, the first arrangement relationship is used to determine that the at least one transmit beam of the first TRP is the same as the beam i in the at least one transmit beam adjacent beams in spatial location or coverage direction; and/or,

For any beam j in the at least one transmit beam of the second TRP, the second arrangement relationship is used to determine a beam j adjacent to the beam j in the spatial position or coverage direction among the at least one transmit beam of the second TRP beam.

In a possible implementation manner, the number of the first transmit beam is one; the first transmit beam is the first beam.

In a possible implementation manner, the number of the first transmit beams is multiple; and determining the first transmit beams according to the first beams includes:

According to the first beam and the first spatial information, a plurality of first transmit beams are determined, and the first beam is included in the plurality of first transmit beams.

In a possible implementation manner, the plurality of first transmit beams are beams adjacent to the first beam.

In a possible implementation manner, determining the second transmit beam according to the second beam includes:

The second transmit beam is determined according to the second beam and the second spatial information.

In a possible implementation manner, the second transmit beam is one or more beams adjacent to the second beam.

Get beam adjustment parameters;

The second transmit beam is determined according to the beam adjustment parameter and the second beam.

In a possible implementation manner, the beam adjustment parameters include beam direction adjustment parameters and/or beam offset values; and determining the second transmit beam according to the beam adjustment parameters and the second beam, including At least one of the following:

determining the second transmit beam according to the beam direction adjustment parameter and the second beam;

determining the second transmit beam according to the beam offset value, the second beam and the second spatial information;

The second transmit beam is determined according to the beam direction adjustment parameter, the beam offset value, the second beam, and the second spatial information.

In a possible implementation manner, the beam adjustment parameter is a beam index, and the beam index indicates at least one transmit beam of the second TRP.

In a possible implementation manner, acquiring beam adjustment parameters includes:

obtain the position of the terminal device at the next moment;

According to the position, the beam adjustment parameter is acquired.

In a possible implementation manner, acquiring the position of the terminal device at the next moment includes at least one of the following:

Obtain the position of the terminal device at the next moment by means of machine learning;

Obtain the position of the terminal device at the next moment by means of Kalman filter;

The position of the terminal device at the next moment is acquired through the motion parameter reported by the terminal device.

In a second aspect, an embodiment of the present application provides an apparatus for determining a transmit beam, including a determination module and a processing module, wherein:

The determining module is used to determine the first beam currently connected between the first TRP and the terminal device, and the terminal device is connected to the network device through the first TRP and the second TRP;

The processing module is configured to determine, according to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP.

In a possible implementation manner, the determining module is specifically used for:

receiving a beam measurement result of the first TRP from the terminal device;

The first beam is determined according to the beam measurement result.

In one possible implementation,

The number of the first transmit beams is one or more; and/or,

The number of the second transmit beams is one or more.

In a possible implementation manner, the processing module is specifically used for:

In a possible implementation manner, the coverage areas of the two beams indicated by the correspondence of each pair of beams are the same.

determining the first transmit beam according to the first beam;

The second transmit beam is determined from the second beam.

In a possible implementation manner, the number of the first transmit beams is multiple; the processing module is specifically configured to:

Get beam adjustment parameters;

In a possible implementation manner, the beam adjustment parameters include beam direction adjustment parameters and/or beam offset values; the processing module is specifically configured to:

Determine the second transmit beam according to the beam direction adjustment parameter and the second beam; or,

determining the second transmit beam according to the beam offset value, the second beam and the second spatial information; or,

obtain the position of the terminal device at the next moment;

According to the position, the beam adjustment parameter is acquired.

Obtain the position of the terminal device at the next moment by means of machine learning; or,

Obtain the position of the terminal device at the next moment by means of Kalman filter; or,

In a third aspect, an embodiment of the present application provides a communication device, including: a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the computer program can be implemented as in the first aspect The method of any one.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored,

The computer program, when executed by a processor, may implement the method according to any one of the first aspects.

Embodiments of the present application provide a method, a device, and a storage medium for determining a transmit beam, which are applied to a network device, where the network device includes a first TRP and at least one second TRP, and a terminal device passes the first TRP and the second TRP through the first TRP and the second TRP. The TRP is connected to the network device. The network device first determines the first beam currently connected between the first TRP and the terminal device, and then can determine the first transmit beam of the first TRP and the second transmit beam of the second TRP according to the first beam . In a high-frequency multi-TRP scenario, when the terminal device is located in the overlapping coverage of the first TRP and the second TRP, by determining the first transmit beam of the first TRP and the second transmit beam of the second TRP, the target device for the terminal is improved. The coverage of the equipment, when the location of the terminal equipment changes, avoids frequent adjustment of the beam, reduces the waste of signaling in the system, and improves the communication efficiency of the system.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a method for determining a transmit beam provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of determining a second beam according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a beam space information correspondence table provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a beam correspondence relationship provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of determining a second transmit beam according to an embodiment of the present application;

FIG. 7 is a schematic diagram of determining a second transmit beam according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an apparatus for determining a transmit beam provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application.

detailed description

In order to facilitate understanding, the concepts involved in the present application will be explained first.

Terminal equipment: It can be a device that includes wireless transceiver functions and can cooperate with network equipment to provide users with communication services. Specifically, a terminal device may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, User Agent or User Device. For example, the terminal device may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless Communication-enabled handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, end devices in future 5G networks or in post-5G networks, etc.

Network equipment: The network equipment can be a device used to communicate with terminal equipment, for example, it can be in the Global System for Mobile Communication (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA) communication system The base station (Base Transceiver Station, BTS), it can also be the base station (NodeB, NB) in the Wideband Code Division Multiple Access (Wideband Code Division Multiple Access, WCDMA) system, and it can also be the evolved base station (Evolutional Node B) in the LTE system B, eNB or eNodeB), or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network-side device in a future 5G network or a network after 5G or a future evolved public land mobile network (Public Land Mobile Network). Mobile Network, PLMN) network equipment in the network, etc.

The network devices involved in the embodiments of the present application may also be referred to as radio access network (Radio Access Network, RAN) devices. The RAN equipment is connected with the terminal equipment, and is used for receiving data of the terminal equipment and sending it to the core network equipment. RAN equipment corresponds to different equipment in different communication systems. For example, in the 2G system, it corresponds to the base station and base station controller, in the 3G system, it corresponds to the base station and the Radio Network Controller (RNC), and in the 4G system, it corresponds to the evolution Evolutional Node B (eNB), which corresponds to 5G system in 5G system, such as access network equipment in NR (eg gNB, centralized unit CU, distributed unit DU).

Beam: refers to the characteristic that the energy of the electromagnetic wave emitted by the antenna is concentrated in a certain area in space.

Hereinafter, with reference to FIG. 1 , a scenario to which the method in the present application is applicable will be described.

FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the present application. Please refer to FIG. 1 , including a first TRP 101 , a second TRP 102 and a terminal device 103 , and wireless communication can be performed between the first TRP 101 , the second TRP 102 and the terminal device 103 .

The first TRP 101 can transmit multiple beams, covering a certain range, and terminal devices within the range can communicate and interact with the first TRP 101 . Likewise, the second TRP 102 can transmit multiple beams, covering a certain range, and terminal devices within the range can communicate and interact with the second TRP 102 .

In the example of FIG. 1 , the respective coverage areas of the multiple beams transmitted by the first TRP 101 and the multiple beams transmitted by the second TRP 102 overlap to a certain extent, as indicated by the multi-beam service area 10 shown in FIG. 1 . Within the multi-beam service area 10, both belong to the coverage area of the first TRP 101 and also belong to the coverage area of the second TRP 102. In this embodiment of the present application, the terminal device 103 is located within the multi-beam service area 10 .

It should be noted that a network device may include multiple TPRs. In this embodiment of the present application, a network device includes at least two TRPs. The application scenario illustrated in FIG. 1 is only described by taking two TRPs as an example, not constitutes a limit on the number of TRPs.

It can be understood that the technical solutions in the embodiments of the present application can be applied to NR communication technology, where NR refers to a new generation of wireless access network technology, which can be applied to future evolutionary networks, such as the 5th Generation Mobile communication in the future. Communication, 5G) system. The solutions in the embodiments of the present application can also be applied to other wireless communication networks such as Wireless Fidelity (WIFI) and Long Term Evolution (Long Term Evolution, LTE), and the corresponding names may also use the corresponding names in other wireless communication networks. Replace the name of the function.

The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

FIG. 2 is a schematic flowchart of a method for determining a transmit beam provided by an embodiment of the present application. The method is applied to a network device, where the network device includes a first TRP and at least one second TRP. As shown in FIG. 2 , the method may include :

S21: Determine a first beam currently connected between the first TRP and the terminal device, and the terminal device is connected to the network device through the first TRP and the second TRP.

The network device includes a first TRP and at least one second TRP, the first TRP can transmit a beam to cover a certain range, and each second TRP can also transmit a beam to cover a certain range. The terminal device is connected to the network device through the first TRP and the second TRP. When the terminal device is connected to the network device through the first TRP, the terminal device is located within the coverage of the first TRP. When the terminal device is connected to the network device through the second TRP , the terminal device is located in the coverage area of the second TRP, so the terminal device is located in the overlapping coverage area of the first TRP and the second TRP. Wherein, the terminal device is connected to the first TRP through the first beam, and the first beam is the beam currently connected between the first TRP and the terminal device.

S22. Determine a first transmit beam of the first TRP and a second transmit beam of the second TRP according to the first beam.

After the first beam to which the first TRP is currently connected to the terminal device is determined, the first transmit beam of the first TRP and the second transmit beam of the second TRP may be determined according to the first beam, where the first transmit beam includes the first transmit beam of the first TRP and the second transmit beam of the second TRP. A beam may also include other transmit beams.

Since the terminal device is located in the overlapping coverage area of the first TRP and the second TRP, the second transmit beam of the second TRP is determined according to the first beam. After moving, the terminal device is still likely to be within the coverage of the first transmit beam of the first TRP or the second transmit beam of the second TRP, and can communicate with the network through the first transmit beam or the second transmit beam. The device establishes a connection and communicates to avoid beam switching as soon as the terminal device moves.

The method for determining a transmit beam provided by the embodiment of the present application is applied to a network device, where the network device includes a first TRP and at least one second TRP, and a terminal device communicates with the network device through the first TRP and the second TRP. For connection, the network device first determines the first beam currently connected between the first TRP and the terminal device, and then can determine the first transmit beam of the first TRP and the second transmit beam of the second TRP according to the first beam. In a high-frequency multi-TRP scenario, when the terminal device is located in the overlapping coverage of the first TRP and the second TRP, by determining the first transmit beam of the first TRP and the second transmit beam of the second TRP, the target device for the terminal is improved. The coverage of the equipment, when the location of the terminal equipment changes, avoids frequent adjustment of the beam, reduces the waste of signaling in the system, and improves the communication efficiency of the system.

The solution of the present application will be described in detail below with reference to specific embodiments.

After the first beam is determined, first spatial information of at least one transmit beam of the first TRP and second spatial information of at least one transmit beam of the second TRP may be acquired, wherein the at least one transmit beam of the first TRP includes first beam. Wherein, the determination of the first beam may be realized by reporting the beam measurement result of the first TRP by the terminal device. After the first TRP receives the beam measurement result of the first TRP from the terminal device, the currently connected first beam may be determined according to the beam measurement result of the first TRP.

Optionally, the first spatial information is used to indicate the first arrangement relationship of the at least one transmit beam of the first TRP in the spatial position or the coverage direction; the second spatial information is used to indicate the spatial position of the at least one transmit beam of the second TRP. Or the second arrangement relationship in the overlay direction.

After acquiring the first spatial information and the second spatial information, a second beam is determined in at least one beam of the second TRP according to the first spatial information, the second spatial information and the first beam, and according to the first beam and the first beam Two beams, determine the first transmit beam and the second transmit beam.

Optionally, the combined coverage of the first transmit beam and the second transmit beam is larger than the coverage of the first beam, so that when the terminal device moves within the combined coverage of the first transmit beam and the second transmit beam, it is not necessary to perform a beam Adjustment.

FIG. 3 is a schematic diagram of determining a second beam provided by an embodiment of the present application. As shown in FIG. 3 , it includes a first TRP and a second TRP. The first TRP can transmit one or more first transmit beams, and the second TRP can transmit One or more second transmit beams, and the terminal equipment is located in the coverage area where the first TRP and the second TRP overlap.

In FIG. 3 , the terminal device is connected to the first TRP through a beam 31, and the beam 31 is the first beam. After the first spatial information is acquired, the spatial relationship between the one or more first transmit beams of the first TRP and the beam 31 can be obtained. After the second spatial information is acquired, the spatial relationship between the one or more second transmit beams of the second TRP and the one or more first transmit beams of the first TRP can be obtained.

Therefore, the second beam can be determined according to the first spatial information, the second spatial information and the beam 31 .

For example, at least one pair of beam correspondences of at least one TRP can be obtained according to the first spatial information and the second spatial information, wherein each pair of beam correspondences indicates one beam of the first TRP and one beam of the second TRP; according to the beam Corresponding relationship and the first beam, determine the second beam.

In the above beam correspondence, the coverage areas of the two beams indicated by each pair of beam correspondences are the same.

The acquisition of the beam correspondence is described below with reference to the accompanying drawings.

FIG. 4 is a schematic diagram of a beam spatial information correspondence table provided by an embodiment of the present application. As shown in FIG. 4 , beams that can be transmitted by a TRP and a spatial relative position relationship of each beam are illustrated. Among them, in FIG. 4 , the horizontal direction is the horizontal direction, and the vertical direction is the vertical direction.

In Figure 4, each CB represents a beam, different beams are numbered differently, and the position of each beam in the figure reflects the spatial information of the beam. For example, in Figure 4, CB10 and CB11 are adjacent, indicating that the coverage of the CB10 beam is relatively close to the coverage of the CB11 beam. CB11 is between CB10 and CB12, indicating that the coverage of the CB11 beam is between the coverage of the CB10 beam and the coverage of the CB12 beam, and so on. The position of each CB in FIG. 4 basically corresponds to the position of the coverage area of the corresponding beam.

Regarding the first spatial information of the first TRP, the first spatial information is used to indicate a first arrangement relationship of at least one transmit beam of the first TRP in a spatial position or a coverage direction. For any beam i in the at least one transmit beam of the first TRP, the first arrangement relationship is used to determine a beam adjacent to the beam i in the spatial position or coverage direction among the at least one transmit beam of the first TRP.

Similarly, for the second spatial information of the second TRP, the second spatial information is used to indicate a second arrangement relationship of at least one transmit beam of the second TRP in a spatial position or a coverage direction. For any beam j in the at least one transmit beam of the second TRP, the second arrangement relationship is used to determine a beam adjacent to the beam j in the spatial position or coverage direction among the at least one transmit beam of the second TRP.

The first spatial information and the second spatial information are shown in the schematic diagram of the beam spatial information correspondence table in FIG. 4 . The number and arrangement of beams under different TRPs may be different, but the acquisition of beam space information is similar, and details are not described here.

FIG. 5 is a schematic diagram of a beam correspondence relationship provided by an embodiment of the present application. As shown in FIG. 5 , two TRPs are taken as an example, including a first TRP and a second TRP, and each TRP includes a beam space information correspondence table.

In FIG. 5 , both the first TRP and the second TRP include multiple transmit beams, and the shaded part represents the overlap of the coverage areas of the first TRP and the second TRP, wherein the CB10 under the first TRP corresponds to the CB10 under the second TRP CB10, CB11 under the first TRP corresponds to CB11 under the second TRP, CB12 under the first TRP corresponds to CB12 under the second TRP, CB13 under the first TRP corresponds to CB13 under the second TRP, and so on, the corresponding relationship is as follows shown by the curved arrows in Figure 5. A pair of beams indicated by the curved arrows in FIG. 5 corresponds to a pair of beam correspondences, for example, CB10 under the first TRP corresponds to CB10 under the second TRP. It should be noted that, in FIG. 5 , only some of the beam correspondences are indicated by curved arrows, but not all of the beam correspondences.

The first beam is the beam that the terminal device is currently connected to with the first TRP, and the terminal device is located within the coverage of the first beam. Since the terminal device is located in the coverage area where the first TRP and the second TRP overlap, the terminal device is also located in the coverage area of a certain beam of the second TRP.

Optionally, the coverage areas of the first beam and the second beam are the same. In FIG. 3 , the first beam is the beam 31 , and the second beam is the beam 32 . The beam that the terminal device is currently connected to the first TRP is beam 31, which means that the terminal device is currently under the coverage of beam 31, and the coverage of beam 31 and beam 32 is the same, indicating that the terminal device is also currently under the coverage of beam 32.

After the first beam and the second beam are determined, the first transmit beam and the second transmit beam may be determined according to the first beam and the second beam, wherein the number of the first transmit beam is one or more, and the second transmit beam The number of beams is one or more.

Specifically, the first transmission beam may be determined according to the first beam, and the second transmission beam may be determined according to the second beam. The determination of the first transmit beam and the second transmit beam will be introduced separately below with reference to the accompanying drawings.

FIG. 6 is a schematic diagram of determining a second transmit beam provided by an embodiment of the present application. As shown in FIG. 6 , the second TRP can transmit multiple transmit beams. 62, beam 63, beam 64, beam 65, beam 66, beam 67 and beam 68.

The second beam is beam 65 . After the second beam is determined, the second transmission beam is determined according to the second beam, and the number of the second transmission beam is one or more. When the number of the second transmit beam is one, the second transmit beam may be the second beam (ie, the beam 65 in FIG. 6 ), or may be another beam close to the coverage area of the second beam (for example, the beam in FIG. 6 ) beam 64, beam 66, etc.).

When the number of the second transmit beams is multiple, the second transmit beam may include the second beam, or may not include the second beam, and the second transmit beam may include other beams that are closer to the coverage area of the second beam, such as In FIG. 6, beam 63, beam 64, beam 66, beam 67, etc. may be included.

How to specifically determine the second transmit beam according to the second beam can be implemented in multiple manners, which will be introduced separately below.

FIG. 7 is a schematic diagram of determining a second transmit beam according to an embodiment of the present application. As shown in FIG. 7 , it is a schematic diagram of beam space information of a second TRP, which includes multiple transmit beams. The second beam is CB27.

After the second beam is determined to be CB27, the second transmit beam may be further determined.

A possible implementation manner is to determine the second transmit beam according to the second beam and the second spatial information, wherein the second spatial information is obtained through the schematic diagram of the beam spatial information of the second TRP illustrated in FIG. 7 .

In FIG. 7 , the schematic diagram of the beam space information of the second TRP shows the relative spatial relationship of each beam, and the relationship of each beam to the second beam CB27 can be obtained through the schematic diagram of the beam space information of the second TRP.

Optionally, the second transmit beam is one or more beams adjacent to the second beam, wherein the beams adjacent to the second beam are indicated by a schematic diagram of beam space information of the second TRP. As shown in Figure 7, when the second beam is determined to be CB27, CB26 and CB28 can be used as the second transmit beam to increase the multi-beam coverage in the horizontal direction; CB19 and CB35 can also be used as the second transmit beam to increase the vertical direction. CB18, CB20, CB34, CB36 can also be used as the second transmit beam, etc.

Another possible implementation manner is that the base station implements by configuring the beam adjustment parameter Bshift. Specifically, the beam adjustment parameter is acquired, and the second transmit beam is determined according to the beam adjustment parameter and the second beam.

In this embodiment of the present application, the beam adjustment parameters may include beam direction adjustment parameters and/or beam offset values.

Optionally, the network device may determine the second transmit beam according to the beam direction adjustment parameter and the second beam. For example, in Figure 7, the second beam is CB27. If the beam direction adjustment parameter is upward, according to the schematic indication of the beam space information of the second TRP in Figure 7, CB19 above CB27, or CB19 and CB11 can be selected as the first beam. Two transmit beams; if the beam direction adjustment parameter is to the right, according to the schematic indication of the beam space information of the second TRP in FIG. 7 , CB28 to the right of CB27, or CB28 and CB29, can be selected as the second transmit beam, and so on.

Optionally, the network device may determine the second transmit beam according to the beam offset value, the second beam, and the second spatial information. For example, in Fig. 7, the second beam is CB27. If the beam offset value is 1, according to the schematic diagram of the beam space information of the second TRP in Fig. 7, we can select CB19, CB26, CB35, CB28 adjacent to CB27. One or more of CB11, CB43, and CB29 can be selected as the second transmit beam; if the beam offset value is 2, one or more of CB11, CB43, and CB29 can be selected as the second transmit beam, and so on.

Optionally, the network device may determine the second transmit beam according to the beam direction adjustment parameter, the beam offset value, the second beam, and the second space information. For example, in Figure 7, the second beam is CB27. If the beam direction adjustment parameter is upward and the beam offset value is 1, then according to the schematic diagram of the beam space information of the second TRP in Figure 7, the CB19 above CB27 can be selected. As the second transmit beam; if the beam direction adjustment parameter is right and the beam offset value is 2, then CB29 can be selected as the second transmit beam, and so on.

In this embodiment of the present application, the beam adjustment parameter may also be a beam index. When the beam adjustment parameter is a beam index, the beam index indicates at least one transmit beam of the second TRP. At this time, the base station can configure a beam index for each transmit beam of the second TRP. When the beam adjustment parameter is the beam index, the beam index of the second transmit beam can be determined according to the corresponding beam index in the beam adjustment parameter, and then the beam index can be determined. The second transmit beam.

Optionally, the beam adjustment parameter may be determined by acquiring the position of the terminal device at the next moment and according to the position of the terminal device at the next moment.

Optionally, the position of the terminal device at the next moment may be acquired by means of machine learning, by means of Kalman filter, or by means of motion parameters reported by the terminal device, and so on.

In the above embodiments, the scheme of determining the second transmit beam according to the second beam is described. The scheme of determining the first transmit beam according to the first beam is similar to the scheme of determining the second transmit beam according to the second beam, and details are not described herein again.

FIG. 8 is a schematic structural diagram of an apparatus for determining a transmit beam provided by an embodiment of the present application. As shown in FIG. 8 , it includes a determination module 81 and a processing module 82, wherein:

The determining module 81 is configured to determine the first beam currently connected between the first TRP and the terminal device, and the terminal device is connected to the network device through the first TRP and the second TRP;

The processing module 82 is configured to determine, according to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP.

In a possible implementation manner, the determining module 81 is specifically configured to:

receiving a beam measurement result of the first TRP from the terminal device;

The first beam is determined according to the beam measurement result.

In one possible implementation,

The number of the first transmit beams is one or more; and/or,

The number of the second transmit beams is one or more.

In a possible implementation manner, the processing module 82 is specifically configured to:

determining the first transmit beam according to the first beam;

The second transmit beam is determined from the second beam.

In a possible implementation manner, the number of the first transmit beams is multiple; the processing module 82 is specifically configured to:

Get beam adjustment parameters;

In a possible implementation manner, the beam adjustment parameters include beam direction adjustment parameters and/or beam offset values; the processing module 82 is specifically configured to:

obtain the position of the terminal device at the next moment;

According to the position, the beam adjustment parameter is acquired.

The beam processing apparatus provided in this embodiment of the present application is used to execute the foregoing method embodiments, and the implementation principle and technical effect thereof are similar, and details are not described herein again in this embodiment.

FIG. 9 is a schematic diagram of a hardware structure of a communication device provided by an embodiment of the present application. The communication device in this embodiment includes: a processor 91 and a memory 92;

memory 92 for storing computer programs;

The processor 91 is configured to execute the computer program stored in the memory, so as to implement each step performed by the network device in the foregoing embodiment, or to implement each step performed by the terminal device in the foregoing embodiment. For details, refer to the relevant descriptions in the foregoing method embodiments.

Optionally, the memory 92 may be independent of the processor 91 or independent of the network device, and may also be within the processor 91 or the communication device. The storage 92 may be a physically independent unit, or may be a storage space on a cloud server or a network hard disk or the like.

When the memory 92 is a device independent of the processor 91 , the communication device may further include: a bus 93 for connecting the memory 92 and the processor 91 .

The bus 93 may be an industry standard architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component (Peripheral Component, PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The bus can be divided into address bus, data bus, control bus and so on. For convenience of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

In addition, the processor 91 may be a central processing unit, a general-purpose processor, a digital signal processor (English: Digital Signal Processor, referred to as: DSP), an application specific integrated circuit (English: Application Specific Integrated Circuit, referred to as: ASIC), a field Programmable gate arrays or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the application can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.

The processor may also be a combination that performs computing functions, such as a combination comprising one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. In addition, the memory 142 may include: volatile memory (volatile memory), such as random-access memory (random-access memory, RAM); the memory may also include non-volatile memory (non-volatile memory), such as flash memory Storage (flash memory), hard disk drive (HDD) or solid-state drive (SSD), cloud storage (cloud storage), network attached storage (NAS: network attached Storage), network drive (network drive) ), etc.; the memory may also include a combination of the above-mentioned types of memory or any other medium or product with a storage function.

The communication device provided in this embodiment can be used to execute the method executed by the network device or terminal in the foregoing embodiment, and its implementation principle and technical effect are similar, and details are not described herein again in this embodiment.

An embodiment of the present application further provides a storage medium, where the storage medium includes a computer program, and the computer program is used to implement the method described in the various possible implementation manners above.

The embodiments of the present application further provide a computer program product, the computer program product includes computer program code, when the computer program code is run on a computer, the computer is made to execute the method described in the various possible implementation manners above.

An embodiment of the present application further provides a chip, including a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a chip installed with the chip is The communication device performs the method as described in the various possible embodiments above.

An embodiment of the present application further provides a communication system, where the communication system includes the network device and the terminal device in the foregoing embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and components shown as modules may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may exist physically alone, or two or more modules may be integrated in one unit. The units formed by the above modules can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.

The above-mentioned integrated modules implemented in the form of software functional modules may be stored in a computer-readable storage medium. The above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute the various embodiments of the present application. part of the method.

The above-mentioned storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC for short). Of course, the processor and storage medium may also exist in the device as discrete components.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of this document. The word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining", depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context dictates otherwise. It should be further understood that the terms "comprising", "including" " indicates the presence of a stated feature, step, operation, element, component, item, category, and/or group, but does not exclude one or more other features, steps, operations, elements, components, items, categories, and/or The existence, appearance or addition of a group. The terms "or" and "and/or" as used herein are to be construed to be inclusive or to mean any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C" . Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

It should be understood that, although the steps in the flow charts in the above embodiments are sequentially displayed according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. Moreover, at least a part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution order is not necessarily sequential. Instead, it may be performed in turn or alternately with other steps or at least a portion of sub-steps or stages of other steps.

It should be noted that, in this article, step codes such as S21 and S22 are used, the purpose of which is to express the corresponding content more clearly and briefly, and does not constitute a substantial restriction on the sequence. Those skilled in the art may S22 will be executed first and then S21, etc., but these should all fall within the protection scope of this application.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, but not to limit them; It should be understood that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the embodiments of the present application scope of the programme.

Claims

A method for determining a transmission beam, applied to a network device, the network device comprising a first TRP and at least one second TRP, characterized in that it includes:

Determine the first beam currently connected between the first TRP and the terminal device, and the terminal device is connected to the network device through the first TRP and the second TRP;

According to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP are determined.
The method according to claim 1, wherein the combined coverage of the first transmit beam and the second transmit beam is greater than the coverage of the first beam.
The method according to claim 1, wherein the determining of the first beam currently connected between the first TRP and the terminal device comprises:

receiving a beam measurement result of the first TRP from the terminal device;

The first beam is determined according to the beam measurement result.
The method of claim 1, wherein:

The number of the first transmit beams is one or more; and/or,

The number of the second transmit beams is one or more.
The method according to claim 1, wherein determining, according to the first beam, a first transmit beam of the first TRP and a second transmit beam of the second TRP, comprising:

Obtain first spatial information of at least one transmit beam of the first TRP and second spatial information of at least one transmit beam of the second TRP, wherein the at least one transmit beam of the first TRP includes the first a beam;

determining a second beam in at least one beam of the second TRP according to the first spatial information, the second spatial information and the first beam;

The first transmit beam and the second transmit beam are determined based on the first beam and the second beam.
The method according to claim 5, wherein the coverage areas of the first beam and the second beam are the same.
The method according to claim 5, wherein a second beam is determined in at least one beam of the second TRP according to the first spatial information, the second spatial information and the first beam, include:

Obtain at least one pair of beam correspondences of at least one TRP according to the first spatial information and the second spatial information, wherein each pair of beam correspondences indicates one beam of the first TRP and a beam of the second TRP a beam;

The second beam is determined according to the beam correspondence and the first beam.
The method according to claim 7, wherein the coverage of the two beams indicated by the corresponding relationship of each pair of beams is the same.
The method according to claim 5, wherein the determining the first transmit beam and the second transmit beam according to the first beam and the second beam comprises:

determining the first transmit beam according to the first beam;

The second transmit beam is determined from the second beam.
The method according to any one of claims 5 to 9, wherein the first spatial information is used to indicate a first arrangement relationship of at least one transmit beam of the first TRP in a spatial position or a coverage direction ; the second spatial information is used to indicate a second arrangement relationship of at least one transmit beam of the second TRP in a spatial position or a coverage direction.
The method according to claim 10, wherein, for any beam i in at least one transmit beam of the first TRP, the first arrangement relationship is used to determine the at least one transmit beam of the first TRP. Beams adjacent to beam i in spatial position or coverage direction; and/or,

For any beam j in the at least one transmit beam of the second TRP, the second arrangement relationship is used to determine a beam j adjacent to the beam j in the spatial position or coverage direction among the at least one transmit beam of the second TRP beam.
The method according to any one of claims 5 to 9, wherein the number of the first transmit beam is one; the first transmit beam is the first beam.
The method according to claim 9, wherein the number of the first transmit beams is multiple; and determining the first transmit beams according to the first beams comprises:

According to the first beam and the first spatial information, a plurality of first transmission beams are determined, and the first beam is included in the plurality of first transmission beams.
The method of claim 13, wherein the plurality of first transmit beams are beams adjacent to the first beam.
The method according to claim 9, wherein determining the second transmit beam according to the second beam comprises:

The second transmit beam is determined according to the second beam and the second spatial information.
The method of claim 15, wherein the second transmit beam is one or more beams adjacent to the second beam.
The method according to claim 9, wherein determining the second transmit beam according to the second beam comprises:

Get beam adjustment parameters;

The second transmit beam is determined according to the beam adjustment parameter and the second beam.
The method according to claim 17, wherein the beam adjustment parameters include beam direction adjustment parameters and/or beam offset values; and the second beam is determined according to the beam adjustment parameters and the second beam. Transmit beams, including at least one of the following:

determining the second transmit beam according to the beam direction adjustment parameter and the second beam;

determining the second transmit beam according to the beam offset value, the second beam and the second spatial information;

The second transmit beam is determined according to the beam direction adjustment parameter, the beam offset value, the second beam, and the second spatial information.
The method according to claim 17, wherein the beam adjustment parameter is a beam index, and the beam index indicates at least one transmit beam of the second TRP.
The method according to any one of claims 17 to 19, wherein acquiring the beam adjustment parameters comprises:

obtain the position of the terminal device at the next moment;

According to the position, the beam adjustment parameter is acquired.
The method according to claim 20, wherein acquiring the position of the terminal device at the next moment comprises at least one of the following:

Obtain the position of the terminal device at the next moment by means of machine learning;

Obtain the position of the terminal device at the next moment by means of Kalman filter;

The position of the terminal device at the next moment is acquired through the motion parameter reported by the terminal device.
A communication device, characterized by comprising: a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, any one of claims 1 to 21 can be implemented the method described.
A computer-readable storage medium, characterized in that a computer program is stored thereon,

The computer program, when executed by a processor, may implement the method as claimed in any one of claims 1 to 21 .