WO2020030162A1

WO2020030162A1 - Sidelink beam management method, device and apparatus, and readable storage medium

Info

Publication number: WO2020030162A1
Application number: PCT/CN2019/100107
Authority: WO
Inventors: 汪梦珍; 陈琳
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-08-10
Filing date: 2019-08-10
Publication date: 2020-02-13
Also published as: CN110536429A; CN110536429B

Abstract

Provided in an embodiment of the present invention are a sidelink beam management method, device and apparatus, and a readable storage medium. The method comprises: acquiring information about a sidellink beam failure recovery configuration; and performing beam failure recovery processing according to the acquired information about the sidellink beam failure recovery configuration.

Description

Method, device, equipment for direct link beam management, and readable storage medium

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on August 10, 2018 with application number 201810912182.8, the entire contents of which are incorporated herein by reference.

Technical field

Embodiments of the present application relate to the field of communications, for example, to a method, an apparatus, a device, and a readable storage medium for a direct link beam management.

Background technique

The Internet of Vehicles refers to a large system network for wireless communication and information exchange between cars-X (X: cars, pedestrians, roadside equipment and the Internet, etc.) in accordance with agreed communication protocols and data interaction standards. Communication through the Internet of Vehicles can enable vehicles to obtain driving safety, improve traffic efficiency, and obtain convenience or entertainment information. Classified by the objects of wireless communication, vehicle-to-vehicle communication includes three different types: Vehicle-to-Vehicle (V2V), and vehicle-roadside equipment / network infrastructure (Vehicle-to-Vehicle) to-Infrastructure / Vehicle-to-Network (referred to as V2I / V2N), and vehicle-to-pedestrian (V2P), are collectively referred to as V2X communication.

In the 3GPP (3rd Generation and Partnership Project) organization's LTE (Long Term Evolution) long-term evolution (V2X) communication research, based on user equipment (User Equipment (UE) for short links (sidelink, also referred to as The V2X communication method of the side chain is one of the implementation methods of the V2X standard, that is, service data is not forwarded by the base station and the core network. As shown in Figure 1, UE1 passes the air interface (a UE introduced in 3GPP Release-12). The interface that directly interacts with the UE is called the PC5 interface.) It directly transmits service data to UE2, or UE3 directly transmits service data to UE1 through the air interface. This V2X communication method can be referred to as PC5-based V2X communication or V2X sidelink communication .

With the advancement of technology and the development of the automation industry, V2X communication scenarios have further expanded and have higher performance requirements. 3GPP has initiated research on vehicle-to-network communication based on the fifth-generation mobile communication technology (5G, 5th Generation), including vehicle-to-network communication based on 5G air interface and vehicle-to-network communication based on 5G direct link (NR sidelink). 5G pass-through communication will support broadcast, multicast, and unicast communication. When 5G pass-through communication uses unicast communication, if the unicast communication fails the pass-through beam failure (also known as the pass-through beam failure) Sidelink failure will cause communication service interruption. Therefore, when a direct link beam failure occurs in unicast communication, how to restore the direct link beam to ensure service continuity is a technical problem that needs to be solved urgently.

Summary of the invention

The method, device, device, and readable storage medium for the through link beam management provided in the embodiments of the present application mainly solve the technical problem of how to recover the through link beam when the through link beam fails.

An embodiment of the present application provides a direct link beam management method, including:

Obtain the configuration information of the straight-through link beam failure recovery;

Perform beam failure recovery processing according to the obtained configuration information of the beam failure recovery of the through link.

In order to solve the foregoing problem, an embodiment of the present application further provides a straight-through link beam management method, including:

Receiving a beam failure recovery processing message sent by a peer UE;

Perform beam failure recovery processing according to the beam failure recovery processing message.

An embodiment of the present application further provides a direct link beam management apparatus, including:

A first information acquisition module, configured to acquire configuration information for failure recovery of a straight link beam;

The first processing module is configured to perform beam failure recovery processing according to the obtained straight link beam failure recovery configuration information.

A second information acquisition module, configured to receive a beam failure recovery processing message sent by a peer UE;

The second processing module is configured to perform beam failure recovery processing according to the beam failure recovery processing message.

An embodiment of the present application further provides a user equipment including a first processor, a first memory, and a first communication bus;

The first communication bus is configured to implement a communication connection between the first processor and the first memory;

The first processor is configured to execute one or more first programs stored in the first storage to implement the steps of the through link beam management method as described above.

In order to solve the foregoing problem, an embodiment of the present application further provides a user equipment, including a second processor, a second memory, and a second communication bus;

The second communication bus is configured to implement a communication connection between the second processor and the second memory;

The second processor is configured to execute one or more second programs stored in the second memory to implement the steps of the through link beam management method as described above.

In order to solve the foregoing problem, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium stores one or more first programs, and the one or more first programs may be stored in one or more first programs. Steps performed by a plurality of processors to implement the through link beam management method as described above;

or,

The computer-readable storage medium stores one or more second programs, and the one or more second programs can be executed by one or more processors to implement the steps of the through link beam management method as described above. .

According to the method, device, device, and readable storage medium provided for the through link beam management provided in the embodiments of the present application, first obtain the through link link failure recovery configuration information, and then perform the beam according to the obtained through link link failure recovery configuration information. Failure recovery processing makes it possible to recover the through link beam in time to ensure service continuity and improve the reliability of the system when the through link beam fails during unicast communication or other communications.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a communication system architecture;

2 is a schematic flowchart of a direct link beam management method on a source UE side according to Embodiment 1 of the present application;

3 is a schematic flowchart of a direct link beam management method on a target UE side according to Embodiment 1 of the present application;

4 is a schematic flowchart of a beam reconfiguration process on a source UE side according to Embodiment 2 of the present application;

5 is a schematic flowchart of a beam reconfiguration process on a target UE side in Embodiment 2 of the present application;

6 is a schematic flowchart of a unicast communication process established under Model A in Embodiment 3 of the present application;

7 is a schematic flowchart of a unicast communication process established under Model B in Embodiment 3 of the present application;

FIG. 8 is a schematic flow chart of interaction of Sidelink, failure, and recovery configuration information in Embodiment 3 of the present application; FIG.

FIG. 9 is a schematic flowchart of a beam failure recovery method according to the first method of Embodiment 3 of the present application; FIG.

FIG. 10 is a schematic flow chart of authorization verification in Embodiment 4 of the present application; FIG.

11 is a schematic diagram of another authorization verification process according to Embodiment 4 of the present application;

12 is a schematic structural diagram of a straight-through beam management apparatus according to Embodiment 5 of the present application;

13 is a schematic structural diagram of another straight-through beam management apparatus according to Embodiment 5 of the present application;

14 is a schematic structural diagram of a user equipment according to Embodiment 6 of the present application;

FIG. 15 is a schematic structural diagram of another user equipment according to Embodiment 6 of the present application.

detailed description

Embodiment one:

In order to reduce as far as possible the possibility of a direct link beam failure due to sidelink beam failure during unicast communication or other types of communication, resulting in service interruption, the direct link beam management method provided in this embodiment may first obtain the direct link beam failure recovery Configuration information (that is, sidelink, failure, and recovery configuration information), and then can perform beam failure recovery processing based on the obtained configuration information of the through link failure recovery, so that when a through link beam failure occurs during unicast communication or other communications, Recovery of the straight-through beam as soon as possible to ensure service continuity.

In this embodiment, for user equipment UEs on both sides of the communication of the direct link communication, it can be set that only one of the UEs performs direct link beam management (for example, sidelink beam recovery), or any one of the two can be set. Performs thru-link beam management. For ease of understanding, in this embodiment, the UE initiating the direct link beam management (for example, performing sidelink beam recovery) is referred to as the source UE, and the UE on the opposite end of the communication of the source UE is the target UE. For example, the application scenario shown in FIG. 1 is still used as an example for illustration. For both communication parties UE1 and UE2 in the direct link communication in FIG. 1, when UE1 performs the direct link beam management, UE1 is the source UE and the opposite UE2 is the target UE; when UE2 performs the direct link beam management, UE2 Is the source UE, and the opposite UE1 is the target UE. In some examples, it is also not excluded that the UEs on both sides of the communication (such as UE1 and UE2) perform direct link beam management at the same time. At this time, UE1 is the source UE, UE2 is the target UE, and UE2 is also the source UE, and UE1 is the target UE. .

It should be understood that the UE in this embodiment may be any user equipment that can perform sidelink communication, including user terminals, various on-board terminals on vehicles, and other vehicles (for example, roadsides, parking points, gas stations, Charging stations, etc.) Other communication terminals that can communicate with user terminals and / or vehicle terminals.

For ease of understanding, in this embodiment, a direct link beam management method on the source UE side and the target UE side are used as examples for illustration.

For the source UE side, the straight-through link beam management method is shown in FIG. 2 and may include:

In S210, the configuration information of the straight link beam failure recovery is acquired.

It should be understood that, in this embodiment, obtaining the configuration information of the straight-through beam failure recovery is not real-time acquisition every time the straight-link beam failure recovery is performed. In some examples, the straight-through beam failure recovery configuration information may be obtained only once, and the information is saved after being obtained for use by the straight-link beam failure recovery. In some examples, after the straight-through link beam failure recovery configuration information is updated, when the through-link beam failure recovery configuration information is updated, the updated direct-link beam failure recovery configuration information may be obtained for the direct link beam. Failure recovery use.

In this embodiment, the way to obtain the configuration of the straight-through link beam failure recovery can be flexibly set. For example, in one example, the through-link beam failure recovery configuration information can be obtained in at least one of the following ways:

Method 1: Obtain the configuration information of the failure of the straight-through link beam from the base station;

In this mode, the through link beam failure recovery configuration information can be obtained by including a variety of radio resource control (RRC) communication information, that is, the base station can restore the through link beam failure configuration through multiple RRC communication information. Information is sent to the UE.

Method 2: Obtain the configuration information of the straight-through beam failure recovery from the user equipment UE of the communication peer;

According to the foregoing analysis, it can be known that, in this embodiment, the UE of the communication peer end is the target UE. And in one example, the target UE may actively send to the source UE when it has configuration information for the recovery of the through link beam failure, and may also send it to the source UE according to the request of the source UE. The source UE and the target UE may exchange configuration information of the through link beam failure recovery through at least one of the following messages:

PC5 connection establishment message (also called PC5 connection request message), PC5 connection establishment response message, PC5 bearer configuration message, PC5 bearer configuration response message, PC5 reconfiguration message, straight link beam failure recovery configuration message (that is, sidelink beam failure recovery) Configuration message).

Method 3: Obtain the configuration information of the straight link beam failure recovery from the pre-configuration information;

It should be understood that, in this mode, the pre-configuration information may be directly configured on the UE, or may be configured on other equipment that is specifically configured to configure the straight-link beam failure recovery configuration information for the UE.

In S220, a beam failure recovery process is performed according to the obtained configuration information of the straight link beam failure recovery.

In this embodiment, performing beam failure recovery processing according to the obtained straight link beam failure recovery configuration information includes:

According to the configuration of the through link beam failure recovery, when a through link failure recovery condition trigger is detected, a through link failure recovery process is performed, which includes sending a beam failure recovery processing message to the opposite UE for beam restoration processing. .

In an example of this embodiment, the straight-through link beam failure recovery configuration information may include at least one of the following:

Whether to synchronize the source UE indication information, the supported direct link sidelink discovery method indication information, the beam failure detection resource (i.e. beam failure detection resource), the beam failure detection timer (beam fault detection timer), and the maximum number of instances of beam failure (i.e. Maximum beam failure times), candidate beam resources (that is, candidate beam resources), beam failure recovery timers (that is, beam recovery timers), beam failure recovery request retransmission timers (that is, beam recovery request retransmission timers) , The maximum number of beam failure recovery request retransmissions (that is, the maximum number of beam recovery request retransmissions), the maximum number of beam failure recovery requests (that is, maximum beam recovery recovery times), and the beam quality threshold (that is, beam quality threshold).

It should be understood that, in this embodiment, the configuration information of the straight link beam failure recovery may include which of the foregoing information, and how the included information is used in combination, and may be flexibly selected according to an application scenario.

In an example of this embodiment, the candidate beam resource may include at least one of the following:

Beam index (beam index), through link synchronization reference signal (ie, sidelink synchronization reference signal), through link discovery signal (ie, sidelink discovery signal), through link communication channel measurement signal, dedicated through link beam measurement signal ( That is, signals dedicated to sidelink beam detection), direct link synchronization resources (that is, sidelink synchronization resources), direct link communication resources (that is, sidelink communication resources for sidelink communication use), and direct link discovery resources (that is, sidelink discovery resources) ), Beam failure recovery dedicated resources (that is, beam failure recovery resources, in this embodiment, the beam failure recovery dedicated resources can be configured as resources for specified use, including beam resources), and beam failure recovery competing resource pools (that is, beam failure recovery) Competing resource pool. In this embodiment, resources in the competitive resource pool can be configured as resources that can be shared by at least two UEs, including beam resources.

For ease of understanding, this embodiment is described below by using an example of detecting whether a straight-through link beam failure recovery condition is triggered.

In this embodiment, the failure of the through link beam means that the quality of the through link beam has reached a situation where normal communication cannot be achieved. The threshold value setting for judging whether the straight-through link beam can normally communicate can be flexibly set based on factors such as communication reliability requirements and communication environment.

In this embodiment, the trigger of the through link beam failure recovery condition may be triggered as soon as the currently used beam failure is detected, or it may be triggered when the currently used beam failure is detected, and the failure condition satisfies a preset Only triggered when a failure condition occurs. It should be understood that the preset failure condition can be flexibly set.

That is, in this embodiment, detecting whether the through-link beam failure recovery condition is triggered may include: detecting whether the currently used beam fails.

In this embodiment, a method for detecting the beam quality is provided. In one embodiment, the quality detection result can be used as a basis for judging the failure of the beam (the judgment for the failure of the beam can also adopt other judgment methods), and it can also be used as the beam The selection basis, or the basis for judging whether the beam needs to be reconfigured, can be flexibly selected according to the needs.

The beam quality measurement method provided in this embodiment includes at least one of the following methods:

Method 1: Discover signals for quality measurement, including:

Receiving the through link discovery announcement message sent by the opposite UE, and measuring the beam quality according to the received through link discovery announcement message, and specifically measuring the quality of the received direct link discovery announcement message beam;

Sending a through link discovery request message to the opposite UE, and receiving a through link discovery response message sent by the opposite UE, and measuring the quality of the beam to be measured according to the received through link discovery response message;

Method 2: When it is determined that the synchronization source UE is required according to the foregoing indication information of whether the synchronization source UE is received, a through link synchronization reference signal sent by the opposite UE is used to perform beam quality measurement;

In this way, the opposite UE can periodically send the through link synchronization reference signal, and the local UE can measure the quality of the beam that needs to be measured currently according to the through link synchronization reference signal sent by the opposite UE;

Method 3: Receive the data of the direct link communication channel sent by the opposite UE for beam quality measurement;

In this way, the opposite UE can send the data of the direct link communication channel by using the beam failure measurement resource to measure the quality of the current beam to be measured;

Method 4: Receive the dedicated straight-through beam measurement signal sent by the opposite UE for beam quality measurement.

In this method, a dedicated direct link beam measurement signal is sent by using a beam failure measurement resource to measure the quality of the beam that needs to be measured at present.

The dedicated direct link beam measurement signal in this embodiment may optionally be configured as a signal dedicated for direct link beam measurement, and the dedicated direct link beam measurement signal may be multiplexed with other functions according to requirements. signal.

In this embodiment, the beam quality threshold included in the straight-through link beam failure recovery configuration information includes at least one of the following:

Receive power threshold for pass-through synchronization reference signal; pass-through link discovery signal (including pass-through link discovery announcement message and / or pass-through link discovery response message) receive power threshold; pass-through communication channel receive power threshold; dedicated pass-through link Receive power threshold for beam measurement signal; Threshold for receiving signal strength indication for the through link synchronization reference signal; Threshold for receiving signal strength indication for the thru link discovery signal; Threshold for indicating the strength of the reception signal for the thru link communication channel; Dedicated thru link beam measurement signal Received signal strength indication threshold.

It should be understood that, in addition to being set as the received power threshold and the signal strength indication threshold, the threshold may also be set as other parameter thresholds according to the actual application scenario. The threshold in this embodiment may be used as a basis for selecting a beam of good quality, and may also be used as a basis for judging a beam of poor quality. The use and the assignment of the threshold may be determined according to an application scenario.

In an example of this example, after the failure of the currently used beam is detected, it is necessary to further determine that the failure condition satisfies a preset failure condition before triggering. For example, in one example, after detecting that the currently used beam fails, the method may further include:

When the currently used beam failure is detected, the beam failure detection timer starts counting, and the beam failure instance count value is increased by 1.

Before the beam failure detection timer expires, if the beam failure detection is detected again, the beam failure detection timer is reset and retimed, and the beam failure instance count value is increased by one; otherwise, if the beam failure detection timer expires, From time to time, no beam failure is detected and the beam failure instance count is set to 0;

In the above process, if the current beam failure instance count value is greater than or equal to the above maximum number of beam failure instance times, it is determined that the straight-through link beam failure recovery condition is triggered.

Through the above example method, the accuracy and stability of beam failure detection can be improved; it should be understood that the preset failure condition in this embodiment is not limited to the above example, and may be set to be continuous for a preset period of time, for example. N (being an integer value greater than or equal to 2) beam failures are detected.

In this embodiment, a manner of sending a beam failure recovery processing message to a peer UE for beam recovery processing may include at least one of the following manners:

Method 1: Select a beam resource (can be referred to as a target candidate beam resource) from the above candidate beam resources, and send a beam failure recovery request message to the peer UE through the selected beam resource. The beam failure recovery request message includes the identity of the UE at the local end. Information, here is the identification information of the source UE;

When receiving the beam failure recovery response message sent by the opposite UE through the beam resource (that is, the above target candidate beam resource), the beam failure recovery is successful, and the beam failure recovery response message includes the identification information of the opposite UE, here Then it is the identification information of the target UE; in this method, after determining that the beam failure recovery is successful, the source UE may switch to the beam resource to perform direct link communication with the opposite UE;

It should be understood that the identification information of the UE in this embodiment may be UE identification information (destination layer ID), or pair identification information negotiated by the UE, or other identification information that may identify the UE.

Method 2: Select a beam resource (that is, the above-mentioned target candidate beam resource) from the candidate beam resources, send the direct link control information (Sidelink Control Information, SCI) to the opposite UE through the selected beam resource, and send the direct link control The information includes at least one of the following:

Identification information of the local UE (here is the identification information of the source UE), identification information of the opposite UE (here is the identification information of the target UE), beam failure recovery indication (this embodiment may also be referred to as BFR indication for short) ), New beam direction, no data transmission instruction information;

In this embodiment, in an embodiment, after receiving the direct link control information on the target candidate beam resource, the opposite UE (that is, the target UE) may perform at least one of the foregoing information included in the direct link control information. To switch to the target candidate beam resource. In one embodiment, the target UE may also send to the source UE information used to characterize the receipt of SCI feedback or beam failure recovery confirmation; the source UE sent a pass-through to the target UE. After the link control information, the target candidate beam resource may also be switched to perform direct link communication with the peer UE. In one embodiment, the source UE may also receive the SCI after receiving the SCI used to characterize the peer. Only the feedback information or the information of the beam failure recovery confirmation can be switched to the target candidate beam resource.

In addition to the methods of the above examples, in this embodiment, the foregoing direct link discovery resources can also be used to perform beam failure recovery by using the direct link discovery signals, for example:

Method 3: When the support mode A through link discovery (i.e., Model side link discovery) method is determined according to the supported through link discovery mode indication information, the through link discovery announcement message (that is, sidelink) can be sent in multiple beam directions discovery announcement message), the through link discovery announcement message includes a beam failure recovery indication to distinguish it from other Model Asidelink discovery messages, and may also include identification information of the source UE; the beam failure recovery indication in this embodiment may include At least one of a beam recovery identifier (that is, a beam recovery identifier), a beam switching identifier (that is, a beam switch), and a beam update identifier (that is, a beam update identifier);

Then receive PC5 signaling including the new beam direction (the PC5 signaling may include the identification information of the target UE) sent by the opposite UE (that is, the target UE), or PC5 signaling sent by the opposite UE in at least one new beam direction ( At this time, the PC5 signaling may not include an indication of a new beam direction), and the beam failure recovery is successful.

In this mode, after determining that the beam failure recovery is successful, the source UE may switch to the new beam direction to perform direct link communication with the opposite UE.

In this embodiment, when the PC5 signaling including the new beam direction sent by the opposite UE (that is, the target UE) is not received within a certain period of time, the through link can be selectively re-sent in multiple beam directions An announcement message is found, and a maximum number of retransmissions can be set.

Method 4: When determining the support mode B through link discovery (that is, Model side link discovery) method according to the supported through link discovery mode indication information, send a through link discovery request message in at least one beam direction, the through link The way discovery request message includes a beam failure recovery indication to distinguish it from other Model sidelink discovery messages, and may also include the identity of the source UE. The beam failure recovery indication in this embodiment may include a beam recovery (that is, beam recovery) identifier, At least one of a beam switching (i.e. beam switching) identifier and a beam update (i.e. beam updating) identifier;

After receiving the through link discovery response message (the message may include the identification information of the target UE) sent by the opposite UE in one beam direction, the beam failure recovery is successful.

In this mode, after determining that the beam failure recovery is successful, the source UE may switch to the beam direction to perform a direct link communication with the opposite UE.

In this embodiment, when the direct link discovery response message sent by the opposite UE (that is, the target UE) is not received within a certain period of time, the direct link discovery may be selectively re-sent in multiple beam directions. Request message, and the maximum number of retransmissions can be set.

In an embodiment, for the first manner and the second manner, the manner of selecting the beam resource from the candidate beam resources may include:

Method 1: Select a beam resource with a beam quality higher than the beam quality threshold from the candidate beam resources, for example, select a beam quality higher than the beam from the beam failure recovery dedicated resource and / or the beam failure recovery competitive resource pool. The beam resource of the quality threshold value (the setting of the threshold value can be flexibly set according to the application scenario);

Method 2: Select a beam resource with the highest beam quality from the candidate beam resources. For example, select a beam resource with the highest beam quality from the dedicated resource for beam failure recovery and / or the competition resource pool for beam failure recovery.

In an embodiment, when the beam failure recovery process is performed in the foregoing manner 1, the following three triggering methods of beam resource reselection may be further included:

Method 1: After the beam failure recovery request message is sent to the opposite UE through the selected beam resource, the beam failure recovery request retransmission timer starts to count;

When the beam failure recovery request retransmission timer expires, if the beam failure recovery response message sent by the peer UE has not been received, the beam failure recovery request message is retransmitted to the peer UE through the selected beam resource, and The failure recovery request retransmission timer recounts and records the number of retransmissions;

When the number of retransmissions is greater than the maximum number of retransmissions of the beam failure recovery request, reselecting beam resources to send a beam failure recovery request message to the opposite UE (that is, the opposite UE);

Method 2: After sending a beam failure recovery request message to the opposite UE through the selected beam resource, the beam failure recovery timer starts counting;

When the beam failure recovery timer expires, if the beam failure recovery response message sent by the peer UE has not been received, the beam resource is reselected to send a beam failure recovery request message to the peer UE.

Method 3: After the beam failure recovery request message is sent to the peer UE through the selected beam resource, the beam failure recovery request retransmission timer and the beam failure recovery timer are started to count. In one embodiment, the The timing value is greater than the timing value of the beam failure recovery request retransmission timer;

When the beam failure recovery request retransmission timer expires, if the beam failure recovery response message sent by the peer UE has not been received, the beam failure recovery request message is resent to the peer UE through the selected beam resource, and the beam failure recovery is performed. Request the retransmission timer to re-time and record the number of retransmissions;

When the number of retransmissions is greater than the maximum number of retransmissions of the beam failure recovery request, and / or the beam failure recovery response message sent by the peer UE has not been received when the beam failure recovery timer expires, the beam resource is reselected to send the beam to the peer UE. Failure recovery request message.

In an example in this embodiment, when the beam failure recovery fails, the through link communication connection can be selectively disconnected or released. For example, the control method includes the following two methods:

Method 1: When the number of times of reselecting the beam resource reaches the maximum number of times of recovery of the above-mentioned beam failure, or there are currently no beam resources that satisfy the conditions (for example, including the selection of the beam resource, or the quality of the remaining beam resource cannot meet the requirements) for selection, the Open or release a direct link communication connection with the opposite UE;

Method 2: When the number of times of reselecting the beam resource reaches the maximum number of times of beam failure recovery or there are currently no beam resources that meet the conditions for selection, and within the current preset time period (the current preset time period may be the first time since Begin timing when a beam failure is detected, or determine when the number of reselected beam resources reaches the maximum number of beam failure recovery times or when no beam resources are currently available for selection, etc.) When no data is received from the peer UE, the Open or release a direct link communication connection with the opposite UE.

In an example of this embodiment, when performing beam failure recovery processing in the above manner 4, it is possible to directly select at least one beam direction from candidate beam resources to send a through link discovery request message and a through link discovery response message. The advantage of this processing method is that you can not wait for the discovery cycle, which can further improve the efficiency of beam failure recovery and further improve the continuity of service. For example, in one example, when the beam failure recovery processing is performed by the fourth method, Sending a through link discovery request message in at least one beam direction includes:

Selecting at least one beam direction from the beam failure recovery dedicated resources and / or beam failure recovery competitive resource pools according to the beam index;

Send a through link discovery request message in the selected at least one wave speed direction.

For the target UE side, the straight-through link beam management method is shown in FIG. 3 and may include:

In S310, a beam failure recovery processing message sent by a peer UE (that is, the source UE) is received.

The manner in which the source UE sends the beam failure recovery processing message includes the foregoing four manners.

In S320, beam failure recovery processing is performed according to the received beam failure recovery processing message.

In order to facilitate understanding, in this embodiment, the following describes the processing procedures corresponding to the foregoing four manners as examples.

Method 1: Receive a beam failure recovery request message sent by a peer UE (that is, the source UE) from a selected beam resource (that is, a target candidate beam resource) from the candidate beam resources. The beam failure recovery request message includes an identifier of the peer UE. Information (ie, identification information of the source UE);

Send a beam failure recovery response message on the beam resource (that is, the target candidate beam resource), and switch to the beam resource for direct link communication with the peer UE. The beam failure recovery response message includes the local UE (that is, the target UE). Identification information);

Method 2: Receive the direct link control information sent by the peer UE through the selected beam resource (that is, the target candidate beam resource) from the candidate beam resources, and the direct link control information includes at least one of the following: identification information of the local UE (Ie, identification information of the target UE), identification information of the opposite UE (that is, identification information of the source UE), beam failure recovery indication, new beam direction, and no data transmission indication information;

Switch to the above new beam direction for direct link communication with the opposite UE.

Method 3: Receive a through link discovery announcement message sent by the opposite UE (ie, the above source UE) in multiple beam directions, where the through link discovery announcement message includes a beam failure recovery indication, and the beam failure recovery in this embodiment The indication may include at least one of a beam recovery (i.e. beam recovery) identifier, a beam switch (i.e. beam switch) identifier, and a beam update (i.e. beam update) identifier;

Send PC5 signaling including the new beam direction to the opposite UE in at least one beam direction, or send PC5 signaling to the opposite UE in the at least one new beam direction (the PC5 signaling at this time may not include the new beam direction Instruction information), and switch to the new beam direction for direct link communication with the opposite UE.

Method 4: The receiving UE (that is, the source UE described above) receives a through link discovery request message in at least one beam direction (the beam direction may include a beam direction selected directly from candidate beam resources), and the through link discovery request The message includes a beam failure recovery indication;

In receiving the direct link discovery request message beam direction, select one to send a direct link discovery response message to the peer UE, and switch to the selected beam direction for direct link communication with the peer UE.

In an embodiment, in this embodiment, before receiving the beam failure recovery processing message sent by the opposite UE, the straight-through link beam failure recovery configuration information may also be sent to the opposite UE.

It can be seen that, through the method for recovering the failure of a straight-through link beam provided by this embodiment, when a beam fails, the recovery of the beam failure can be flexibly, quickly and reliably, and service continuity is guaranteed.

Embodiment two:

In this embodiment, in addition to the method for beam management of a direct link, in addition to the method for recovering a failure of a direct link beam in the first embodiment, the method can be used to perform beam re-detection when a beam reconfiguration condition trigger is detected.配处理。 With processing.

Among them, on the source UE side that initiates beam reconfiguration, a schematic flowchart of a process of performing beam reconfiguration processing is shown in FIG. 4, including:

In S410, a reconfiguration message is sent to the opposite UE in the currently used beam direction (that is, the source beam direction), and the reconfiguration message includes the selected new beam direction and identification information of the local UE (that is, the source UE).

In S420, when receiving the reconfiguration response message sent by the opposite UE in the currently used beam direction or the new beam direction, it switches to the new beam direction to perform direct link communication with the opposite UE. The reconfiguration response message includes Identification information and / or beam reconfiguration confirmation information of the opposite UE (that is, the target UE).

In an example of this embodiment, the beam reconfiguration conditions include at least one of the following:

Condition 1: The quality of the currently used beam is lower than the preset first beam quality threshold; at this time, the currently used beam may basically maintain normal communication, but the communication effect is not optimal or does not meet the preset normal requirements;

Condition 2: There is a beam with a quality higher than the second beam quality threshold, and the quality of the beam is higher than that of the currently used beam;

The second beam quality threshold is higher than the first beam quality threshold, and the setting of the threshold value can be flexibly set according to factors such as communication requirements and communication environment.

It should be understood that, in addition to the conditions of the above examples, other reconfiguration conditions may be flexibly set, for example, there are currently other beams with higher quality than the beams currently used.

In an example of this embodiment, the new beam direction selected in S401 may be the beam direction with the highest beam quality currently, or one beam direction among the beams whose beam quality is higher than the second beam quality threshold.

Wherein, on the target UE side of the opposite end of the source UE that initiates beam reconfiguration, a schematic flowchart of a process for performing beam reconfiguration is shown in FIG. 5, including:

In S510, a reconfiguration message sent by a peer UE (ie, a source UE) is received in a currently used beam direction, and the reconfiguration message includes a selected new beam direction and identification information of the peer UE (ie, a source UE).

In S520, a reconfiguration response message is sent in the currently used beam direction or the above-mentioned new beam direction, and it is switched to the new beam direction for direct link communication with the opposite UE (source UE). The reconfiguration response message includes the current Identification information and / or beam reconfiguration confirmation information of the end UE (ie, the target UE).

It can be seen that the through-link beam management method provided in this embodiment can perform timely and reasonable beam reconfiguration when beam reconfiguration is required, thereby further ensuring service quality and improving system performance on the basis of ensuring continuous service. .

Embodiment three:

For ease of understanding, the following uses the selection of beam direction, reconfiguration, and recovery of beam failure as examples in the Sidelink unicast communication process.

Example 1: Beam direction selection for Sidelink unicast communication

For V2X sidelink unicast communication, the resource configuration between UEs in unicast communication can be configured based on the beam direction of the relevant beams. Sidelink unicast communication can be considered in the beam direction where the measured beam quality is better. When the UE performs unicast communication on selecting a beam direction, because the UE has been in a relatively mobile state, the beam may deteriorate in quality after a period of time, so it is necessary to perform beam recovery and select a new beam, and switch to the new beam to continue Perform sidelink unicast communication to ensure service continuity.

Before V2X sidelink unicast communication, the UE can perform sidelink Discovery and sidelink communication connection establishment (also known as PC5 connection establishment) on the initial SLB (initial SideLink Bandwidth Part, generally the base station configuration or preset configuration). The sidelink unicast communication beam direction beam direction is determined during the establishment of the sidelink discovery or sidelink communication connection, and the SLBWP used for the sidelink unicast communication between the UE pair is negotiated during the sidelink communication connection establishment. Sidelink discovery includes Model A and Model B discovery methods.

In the Model sidelink discovery method, suppose that UE1 in Figure 1 acquires the sidelink discovery resource on the initial SLBWP, and then sends the sidelink discovery discovery message in multiple directions through beam scanning beamsweeping. After UE2 in Figure 1 monitors the sidelink discovery message of UE1, it acquires the sidelink communication resources on the initial SLWP, and then selects one or more beams with good beam quality in the beam direction of the sidelink discovery announcement received by UE1. Send a PC5 connection establishment request message to the direction. UE1 selects the beam direction with the best beam quality or a beam direction among multiple beams with good beam quality in the beam direction of the PC5 connection establishment request message of UE2, and sends the PC5 connection establishment response message, and the beam direction is used as Sidelink unicast communication beam direction between UE1 and UE2. This process is shown in Figure 6, and includes:

S601: UE1 obtains sidelink discovery resources;

S602: UE1 sends a sidelink discovery announcement to UE2;

S603: UE2 acquires sidelink communication resources;

S604: UE2 selects one or more beams with good beam quality to send a PC5 connection establishment request message to UE1.

S605: UE1 selects the beam direction with the best beam quality or one beam direction among multiple beams with good beam quality in the beam direction of the PC5 connection establishment request message of UE2, and sends a PC5 connection establishment response message.

In the Model sidelink discovery method, it is assumed that UE1 in Figure 1 acquires the sidelink discovery resource on the initial SLWP and then sends the sidelink discovery discovery policy in multiple directions through the beamsweeping method or in one or more beam directions. Direct Link Discovery Request) message. In the beam direction of UE1's sidelink discovery request message, UE2 selects the beam direction with the best beam quality or selects a beam direction among multiple beam quality and sends a sidelink discovery response message, and the beam direction is used as the UE's Sidelink unicast communication beam direction. After UE1 receives the sidelink discovery response message of UE2 and obtains the sidelink communication resources, UE1 and UE2 perform the PC5 connection establishment process in the selected beam direction, and then perform sidelink unicast communication. This process is shown in Figure 7, and includes:

S701: UE1 and UE2 obtain sidelink discovery resources;

S702: UE1 sends a sidelink discovery discovery message to UE2;

S703: UE2 selects a beam direction with the best beam quality or a beam direction among multiple beams with a better quality among the beam directions of the sidelink discovery request message of UE1, and sends a sidelink discovery response message;

S704: UE1 and UR2 obtain communication resources;

S705: UE1 and UE2 perform PC5 connection establishment in the selected beam direction.

Example 2: Beam beam reconfiguration

In this example, the measurement of the sidelink beam of the direct link beam may also include at least one of the following: a sidelink synchronization reference signal, a sidelink discovery signal, a sidelink communication channel quality measurement signal, and a newly defined signal dedicated to the sidelink beam measurement; corresponding The beam thresholds may include: a sidelink synchronization reference signal received power threshold, a sidelink discovery signal received power threshold, a sidelink communication channel quality measurement signal received power threshold, and a newly defined signal received power threshold dedicated to sidelink beam measurement.

Sidelink unicast communication beam direction reconfiguration:

When the UE detects that the quality of the current sidelink unicast communication beam (that is, the currently used beam) is lower than the configured / pre-configured beam quality threshold 1 (that is, the first beam quality threshold), and / or detects that the quality of other beams is better, Above the configured / pre-configured beam quality threshold 2 (ie, the second beam quality threshold), the UE selects the beam with the best beam quality or selects a beam from the beams above the beam quality threshold 2 as the new beam direction for sidelink unicast communication . The UE sends a reconfiguration message (including a sidelink reconfiguration message and a beam reconfiguration message) to the opposite UE in the original beam direction, and the reconfiguration message includes a new beam direction indication and a source UE identifier. After the peer UE receives the new beam direction indication, it sends a reconfiguration response message in the original beam direction or in the new beam direction (the corresponding ones include the sidelink reconfiguration response / completion message and the beam reconfiguration response / completion message). The response message contains the target UE identification and / or beam reconfiguration confirmation information. After receiving the response confirmation message from the peer UE, the UE switches / updates to the new beam for sidelink unicast communication, realizing the reconfiguration of the beam, thereby further guaranteeing the service quality and improving the system performance on the basis of ensuring continuous service. .

Example 3: Sidelink, failure, recovery configuration

In order to recover as soon as possible after the failure beam of the currently used beam beam fails to avoid affecting the sidelink unicast communication service continuity, the UEs can negotiate sidelink beam failure recovery related configuration information, including at least one of the following: whether to synchronize the source UE indication information, Supported direct link sidelink discovery method indication information, beam failure detection resources (beam failure detection resources), beam failure detection timers (beam failure detection timers), maximum number of beam failure instances (that is, maximum beam failure instances), Candidate beam resource (i.e. candidate beam resource), beam failure recovery timer (i.e. beam recovery timer), beam failure recovery request retransmission timer (i.e. beam recovery request retransmission timer), beam failure recovery request retransmission The maximum number of times (that is, the maximum number of beam recovery request retransmissions), the maximum number of beam failure recovery (that is, the maximum number of beam recovery), the beam quality threshold (that is, the beam quality threshold); among which the candidate beam resources may include at least one of the following:

Beam index (beam index), through link synchronization reference signal (ie, sidelink synchronization reference signal), through link discovery signal (ie, sidelink discovery signal), through link communication channel measurement signal, dedicated through link beam measurement signal ( That is, the signals dedicated to sidelink beam detection), direct link synchronization resources (that is, sidelink synchronization resources), direct link communication resources (that is, sidelink communication resources for sidelink communication use), and direct link discovery resources (that is, sidelink discovery resources) ), Beam failure recovery dedicated resources (ie beam failure recovery dedicated resources, beam failure recovery competing resource pools (beam failure recovery recovery resource pools).

If the synchronization source UE is determined according to the indication information of the synchronization source UE, the UE may periodically send a sidelink synchronization reference signal, and the opposite UE may directly measure the signal to detect the beam quality; if it is not the synchronization source UE, it may detect the beam quality through other methods described above .

When the UE obtains the Sidelink, failure, and recovery configuration information from the peer UE, it can send it through one of the following methods: PC5 connection establishment (request) message, PC5 connection establishment response message, PC5 bearer configuration message, PC5 bearer configuration response message, PC5 Provisioning messages, Sidelink, failure, recovery configuration messages, and other PC5 signaling messages.

In an embodiment, after receiving the Sidelink, failure, and recovery configuration information from the opposite UE, the UE may further send a corresponding response or confirmation message to the opposite UE. For example, an interaction process of Sidelink, failure, and recovery configuration information is shown in FIG. 8 and includes:

S801: UE2 sends a Sidelink beam failure recovery configuration to UE1;

S802: UE1 sends Sidelink beam failure recovery configuration to UE2.

Example 4: Sidelink, failure, recovery trigger

When the physical layer of the UE (here the source UE) detects a sidelink beam failure (the beam failure detection method can use the above-mentioned beam quality detection method, or other methods such as packet loss rate, etc.), the SL is instructed to the MAC failure instance, start or restart the beam failure detection timer to count, and the MAC count SL, beam failure, and instance times increase by 1; when the beam failure detection timer expires, the MAC count SL is set to 0; when SL beam failure indicates the number of times Reaching the maximum number of beam failure instances configured in the sidelink beam failure recovery configuration information triggers the sidelink beam failure recovery process.

Example 5: Execution of Sidelink, failure, recovery

method one:

The UE selects the beam resource among the candidate beam resources to send a SL failure failure recovery request message to the opposite UE (that is, the target UE), including: UE identification information (destination layer 2ID), or UE pair negotiation negotiation identification information, or other information that can be used for The opposite end can identify the identification information of the UE. If the opposite UE receives the request message, it uses the corresponding beam resource to reply to the response message. When the UE receives the SL / Repair / Response / ack message from the peer UE, it contains the peer UE identification information (destination layer 2ID), or the pair identification information negotiated by the UE, or other information that can be used by the UE to identify the peer UE. Identification information, SL, failure, and recovery are successful. The purpose of this process is to let the UE pair know the new beam direction new beam direction. See Figure 9 for a schematic diagram of the SL failure recovery process.

S901: UE1 and UE2 perform direct link unicast communication;

S902: UE1 detects Sidelink failure and recovery trigger;

S903: UE1 sends an SL recovery request message to UE2 in the above manner;

S904: UE4 sends an SL recovery, recovery / ack message to UE2 in the above manner;

S905: UE1 and UE2 switch to a new beam direction for communication.

In an embodiment, in the above manner 1, the selection of a beam from a candidate beam resource includes the following two ways: 1) According to the beam quality threshold configured in the Sidelink beam failure recovery configuration information, selecting a candidate beam quality higher than the configured gate Beam with a limited value (that is, a preset preferred quality threshold). If there are multiple candidate beams that meet the conditions, the UE can choose one; 2) If the corresponding beam quality threshold is not configured in the Sidelink beam failure recovery configuration information, then Choose the beam with the highest beam quality.

In an embodiment, in the above manner 1, if the UE does not receive the response message of the peer UE within a certain period of time (beam failure recovery request retransmission timer) after sending the SL failure response request message, the UE resends the BFR request, if the maximum number of retransmissions is reached (the maximum number of retransmissions of the beam recovery request) and no response is received, the BFR fails this time; after that, the UE performs beam reselection and tries BFR again.

In an embodiment, in the above manner 1, if the UE does not receive the response message of the peer UE within a certain period of time (beam failure recovery timer) after sending the SL failure recovery request message, then the failure of the failure failure recovery ; When the failure of recovery fails, the UE selects another candidate that satisfies the conditions and tries to recover the failure again.

In an embodiment, in the first manner, if the number of times the beam is reselected reaches the maximum number of beam recovery times, or when the beam resources that do not meet the conditions are available, it may be determined that the beam failure recovery has failed (in one embodiment, When it can be increased and the UE has not received the data sent by the peer UE for a period of time), the PC5 connection between the UEs can be disconnected or released;

Method two:

Perform sidelink, failure, and recovery through SCI. The UE selects the beam resource among the candidate beam resources to send the SCI, and the SCI may include at least one of the following: a UE identifier, a BFR indication, a new beam direction, and no corresponding data transmission indication. After receiving the SCI, the opposite UE (namely, the target UE) performs sidelink communication with the UE through the new beam direction.

In this method, if the UE identifier is layer 2 and the UE ID is 24 bits, including the source target UE ID, it is 48 bits, which is larger than the original SCI size. Therefore, in some examples, you can consider negotiating the UE pair when the PC5 connection is established or the beam fails Recovery Recovery configuration. Recognizable ID with small size (and no conflict with other UE / UE pairs), or extended SCI.

In this embodiment, when the UE triggers the sidelink failure recovery process, it can also trigger the sending of sidelink discovery messages, and perform sidelink failure recovery through sidelink discovery. For example, see the third and fourth methods below.

Way three:

For the Model sidelink discovery method, the source UE sends the sidelink discovery message using the beamsweeping method. In order to distinguish other discovery messages that are not sent for the beam failure recovery, the discovery message can include the beam recovery / switch / update identifier. The end UE (that is, the target UE receives the discovery message on the omnidirectional or certain good beam) receives the discovery message sent by the UE, and then uses PC5 signaling in one or more beam directions with better beam quality, such as beam Switch / recovery signaling to inform the new beam direction. After the source UE receives the PC5 beam switch / recovery signaling and selects a beam direction response message, the beam recovery is successful. Two UEs use the new beam direction for sidelink unicast communication.

Way four:

For the model discovery side discovery method, the source UE chooses to send discovery messages in one or more beam directions. In order to distinguish other discovery messages that are not sent for beam recovery, the discovery message can include beam discovery / switch / update Identifies and waits for a discovery response message. The opposite UE (that is, the target) selects the beam direction with the best beam quality or a beam direction among multiple beams with a better beam quality in the beam direction of the UE's sidelink discovery request message, and sends a sidelink discovery response message. If the source UE receives the discovery response message from the peer UE in one of the beam directions, then the beam succeeds recovery, the source UE performs sidelink communication for switching to the beam direction, and the peer UE also switches to the beam direction Perform sidelink communication.

In one embodiment, in this mode, the source UE and the target UE can use the candidate beam resources configured in sidelink, failure, and recovery to send a Model discovery discovery / response message, so that there is no need to wait for the discovery period. If a response is received, Then beam recovery is successful, and the UE communication pair can switch to the new beam direction for sidelink communication, which can improve the efficiency of beam failure recovery.

Embodiment 4:

This embodiment also provides a method for controlling authorization verification of a UE. Referring to FIG. 10, the method includes:

S1001: The base station obtains UE authorization information.

S1002: The base station performs authorization verification on the UE.

In one example, the UE authorization information includes at least one of the following: pass-through link discovery authorization, pass-through communication authorization, LTE pass-through communication authorization, NR pass-through communication authorization, NR pass-through unicast authorization, NR Direct link broadcast / multicast authorization, service types supported by authorization, business roles supported by authorization, and service automation levels supported by authorization.

In one example, the base station may perform authorization verification processing based on the resource request sent by the UE. At this time, referring to FIG. 11, the method includes:

S1101: The base station obtains UE authorization information, for example, obtains the UE authorization information from an AMF (Access and Mobility Management Function).

S1102: The base station saves the obtained UE authorization information.

S1103: The base station receives a resource request sent by the UE.

S1104: The base station performs authorization verification on the UE according to the saved UE authorization information.

In one example, obtaining the UE authorization information by the base station may include:

The base station obtains the UE authorization information from the AMF (Access and Mobility Management Function) through the NG interface. For example, the base station may obtain at least one of the following messages: a PDU (Protocol Data Unit) protocol resource establishment / modification request message, an initial context establishment request, UE context modification request, handover request;

The base station obtains the UE authorization information from the neighboring base station through the Xn interface.

For example, in one example, after receiving the resource request sent by the UE, the base station may process the resource request according to the authorization information in the UE context of the UE.

In one embodiment, the resource request sent by the UE includes a through link communication resource request or a through link discovery resource request; the base station requests the through link communication / discovery resource according to the authorization information in the UE context of the UE. The processing includes: determining whether the UE can perform direct link communication / discovery according to the authorization information, and if so, configuring a corresponding type of resource for the UE.

In an embodiment, the direct link communication resource request includes a requested resource type;

The base station configuring a resource of the corresponding type for the UE includes: configuring resources for the UE according to a resource type requested by the through link communication resource.

In one embodiment, the resource type includes at least one of LTE V2X sidelink communication resources and NR V2X sidelink communication resources, NR V2X sidelink unicast communication resources, and NR V2X sidelink broadcast / multicast communication resources.

In another example, the resource request sent by the UE may include a service type; the base station processing the resource request according to the authorization information in the UE context of the UE includes: determining whether the UE supports according to the authorization information The requested service, if so, configures communication resources for the UE.

In an embodiment, the resource request includes at least one of service role information and service automation level; the base station determining whether the UE supports the requested service according to the authorization information in the UE context of the UE includes determining whether the UE is authorized As the service role requested by the base station.

In an embodiment, the base station configuring corresponding resources for the UE includes: configuring corresponding communication resources for the UE according to a V2X service type and / or a service role in the service resource request.

In an embodiment, the service role information includes at least one of: platooning leader, automated UE, remote driving UE, and automation level.

Optionally, the V2X control function obtains UE authorization information; the V2X control function performs service authorization verification (service type, business role, and service automation level) for the UE; the V2X control function can be obtained from the HSS (Home Subscriber Server, home subscriber server) or Obtain UE authorization information in OAM (Operation, Maintenance, and Maintenance) configuration.

For example: For NR-based V2X sidelink communication, if the base station is more powerful, for example, gNB can schedule or configure LTE sidelink resources. When the UE requests resources, the base station can verify whether the UE can perform LTE based on the authorization information in the UE context obtained. V2X sidelink communication or NR based V2X sidelink communication, and then configure the UE with corresponding types of resources; further, the UE can indicate which type of resources (LTE V2X sidelink communication resources or NR V2X sidelink communication resources) resources are requested when requesting resources.

For another example, different V2X service types require different UE capabilities and QoS guarantees (thus affecting resource occupation, reservation, and scheduling policies). When the UE wants to perform a certain V2X service, the base station uses the authorization information in the context of the obtained UE. Verify whether the UE is authorized to support a certain V2X service (such as Platooning, automated driving, remote driving, or a specific V2X service). Further, for platooning, verify whether the UE is authorized as a platooning leader; or, verify whether the UE is authorized as an automated UE, a remote driving UE, and an authorized automation level of automation. Further, when requesting a resource, the UE may indicate a V2X service type, platooning leader, automated UE, remote driving UE, automation level, etc. to be sent. In addition, V2X control functions can be considered for service authorization. The base station can obtain the UE authorization information from the AMF or Xn interface message. The V2X control function can obtain UE authorization information from HSS or OAM configuration.

Embodiment 5:

This embodiment provides a direct link beam management apparatus, which can be applied to a UE as a source UE, as shown in FIG. 12, and includes:

The first information obtaining module 1201 is configured to obtain the configuration information of the failure recovery of the through link beam;

The first processing module 1202 is configured to perform beam failure recovery processing according to the obtained straight link beam failure recovery configuration information.

In one example, the first information obtaining module 1201 may be configured to obtain the through link beam failure recovery configuration information by using at least one of the following:

Obtaining the configuration information for the failure recovery of the through link beam from the base station;

Obtaining configuration information of the straight-through beam failure recovery from the UE at the opposite end of the communication;

Obtaining the configuration information of the straight link beam failure recovery from the pre-configuration information;

For the obtaining process, reference may be made to the foregoing multiple embodiments.

In one example, the first processing module 1202 is configured to send a beam failure recovery processing message to the opposite UE for beam recovery according to the detection of the thru link beam failure recovery condition triggering. deal with.

In one example, the through link beam failure recovery configuration information includes at least one of the following:

Whether to synchronize source UE indication information, supported direct link discovery mode indication information, beam failure detection resources, beam failure detection timer, maximum number of instances of beam failure, candidate beam resources, beam failure recovery timer, beam failure recovery request retransmission Timer, maximum number of beam failure recovery request retransmissions, maximum number of beam failure recovery requests, beam quality threshold.

In one example, the candidate beam resources include at least one of the following:

Beam index, through link synchronization reference signal, through link discovery signal, through link communication channel measurement signal, dedicated through link beam measurement signal, through link synchronization resource, through link communication resource, through link discovery resource, Beam failure recovery dedicated resources, beam failure recovery competes for the resource pool.

In one example, the first processing module 1202 detecting whether the through-link beam failure recovery condition is triggered includes detecting whether the currently used beam fails.

In an example, the first processing module may be further configured to detect the beam quality, and the specific detection manner includes the manner shown in the foregoing multiple embodiments.

In one example, the first processing module 1202 is further configured to start counting through the beam failure detection timer and increase the beam failure instance count value by 1 when a beam failure detection is detected; and to expire the beam failure detection timer. Previously, if a beam failure was detected again, the beam failure detection timer was reset and re-counted, and the beam failure instance count was increased by 1; otherwise, the beam failure instance count was set to 0; the first processing module is also used in the current beam. When the failure instance count value is greater than or equal to the maximum number of beam failure instance times, it is determined that the straight-through link beam failure recovery condition is triggered.

In one example, the first processing module 1202 is configured to send a beam failure recovery processing message to the opposite UE for beam recovery processing in at least one of the following ways:

Method 1: Select a beam resource from the candidate beam resources, and send a beam failure recovery request message to the opposite UE through the selected beam resource, where the beam failure recovery request message includes identification information of the local UE;

When a beam failure recovery response message sent by the peer UE through the beam resource is received, the beam failure recovery is successful, and the beam failure recovery response message includes identification information of the peer UE;

Manner 2: Select a beam resource from the candidate beam resources, and send direct link control information to the opposite UE through the selected beam resource, where the direct link control information includes at least one of the following:

Identification information of the local UE, identification information of the opposite UE, beam failure recovery indication, new beam direction, and no data transmission indication information;

Method 3: When a support mode A through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery announcement message is sent in multiple beam directions, and the through link discovery announcement message Including beam failure recovery indication;

Receive PC5 signaling including the new beam direction sent by the opposite UE, or PC5 signaling sent by the opposite UE in at least one new beam direction, and the beam failure recovery is successful at this time;

Method 4: When the support mode B through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery request message is sent in at least one beam direction, and the through link discovery request message Including beam failure recovery indication;

Receive the through link discovery response message sent by the opposite UE in one beam direction. At this time, the beam failure recovery is successful.

In one example, when the first processing module 1202 performs the beam failure recovery processing in the fourth manner, the first processing module 1202 sends the through link discovery request message in at least one beam direction including:

Selecting at least one beam direction from a beam failure recovery dedicated resource and / or a beam failure recovery competitive resource pool;

Referring to FIG. 12, the through-link beam management apparatus in this embodiment further includes a first reconfiguration module 1203 configured to perform beam reconfiguration processing when a trigger of a beam reconfiguration condition is detected.

In one example, the first reconfiguration module 1203 is configured to send a reconfiguration message to the opposite UE in the currently used beam direction, where the reconfiguration message includes the selected new beam direction and identification information of the local UE;

And when configured to receive a reconfiguration response message sent by the opposite UE in the currently used beam direction or the new beam direction, switching to a new beam direction to perform a direct link with the opposite UE Communication, the reconfiguration response message includes identification information of the opposite UE and / or beam reconfiguration confirmation information.

In one example, the first reconfiguration module 1203 beam reconfiguration condition includes at least one of the following:

The quality of the currently used beam is lower than a preset first beam quality threshold;

There is currently a beam with a quality higher than the second beam quality threshold, and the quality of the beam is higher than the currently used beam quality;

The second beam quality threshold is higher than the first beam quality threshold.

In this embodiment, the functions of the first information acquisition module 1201, the first processing module 1202, and the first reconfiguration module 1203 can be implemented by the processor or controller in the UE. For the implementation process of the functions of multiple modules, refer to the foregoing implementations. The corresponding method part in the example is not repeated here.

This embodiment further provides a direct link beam management apparatus that can be applied to a UE that is a target UE. Referring to FIG. 13, the apparatus includes:

The second information acquisition module 1301 is configured to receive a beam failure recovery processing message sent by the opposite UE;

The second processing module 1302 is configured to perform beam failure recovery processing according to the beam failure recovery processing message.

As shown in FIG. 13, the direct link beam management device may further include an information sending module 1304 configured to send the second information obtaining module to the opposite UE before receiving the beam failure recovery processing message sent by the opposite UE. Straight-through beam failure recovery configuration information.

In one example, the second processing module 1302 is configured to perform beam failure recovery processing in at least one of the following ways:

Method 1: Receive a beam failure recovery request message sent by a peer UE through a selected beam resource from candidate beam resources, where the beam failure recovery request message includes identification information of the peer UE;

Sending a beam failure recovery response message on the beam resource, and switching to the beam resource for direct link communication with the peer UE, where the beam failure recovery response message includes identification information of the local UE;

Method 2: Receive the direct link control information sent by the peer UE through the selected beam resource from the candidate beam resources. The direct link control information includes at least one of the following: identification information of the local UE and identification of the peer UE. Information, beam failure recovery indication, new beam direction, no data transmission indication information;

Switching to the new beam direction for direct link communication with the opposite UE;

Method 3: receiving a through link discovery announcement message sent by a peer UE in multiple beam directions, where the through link discovery announcement message includes a beam failure recovery indication;

Sending PC5 signaling including a new beam direction to the opposite UE in at least one beam direction, or sending PC5 signaling to the opposite UE in at least one new beam direction, and switching to the new beam direction and the same The peer UE communicates through the link;

Method four: receiving a peer UE sending a through link discovery request message in at least one beam direction, where the through link discovery request message includes a beam failure recovery indication;

In receiving the direct link discovery request message beam direction, select one to send a direct link discovery response message to the peer UE, and switch to the selected beam direction to perform a direct link with the peer UE Communication.

As shown in FIG. 13, the through-link beam management apparatus further includes a second reconfiguration module 1303 configured to receive a reconfiguration message sent by a peer UE in a currently used beam direction, where the reconfiguration message includes a selected new A beam direction and identification information of the opposite UE; and configured to send a reconfiguration response message in the currently used beam direction or the new beam direction, and switch to the new beam direction and the opposite end The UE performs direct link communication, and the reconfiguration response message includes identification information and / or beam reconfiguration confirmation information of the local UE.

In this embodiment, the functions of the second information acquisition module 1301, the second processing module 1302, the second reconfiguration module 1303, and the information sending module 1304 may be implemented by a processor or controller in the UE, and the functions of multiple modules may be implemented. For the process, refer to the corresponding method part in the foregoing embodiments, and details are not described herein again.

Embodiment 6:

This embodiment further provides a user equipment that can be used as a source UE. Referring to FIG. 14, the user equipment includes a first processor 1401, a first memory 1402, and a first communication bus 1403.

The first communication bus 1403 is configured to implement a communication connection between the first processor 1401 and the first memory 1402;

The first processor 1401 is configured to execute one or more first programs stored in the first storage 1402 to implement the steps of the direct link beam management method on the source UE side in the foregoing multiple embodiments.

This embodiment further provides a user equipment that can be used as a target UE. Referring to FIG. 15, the user equipment includes a second processor 1501, a second memory 1502, and a second communication bus 1503.

The second communication bus 1503 is configured to implement a communication connection between the second processor 1501 and the second memory 1502;

The second processor 1501 is configured to execute one or more second programs stored in the second memory 1502 to implement the steps of the direct link beam management method on the target UE side as shown in the above embodiments.

This embodiment also provides a computer-readable storage medium that is implemented in any method or technology for storing information such as computer-readable instructions, data structures, computer program modules, or other data. Volatile or non-volatile, removable or non-removable media. Computer-readable storage media include RAM (Random Access Memory, Random Access Memory), ROM (Read-Only Memory, Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory, Live Erasable Programmable Read-Only Memory), Flash Memory Or other memory technology, CD-ROM (Compact Disc Read-Only Memory), digital versatile disc (DVD) or other optical disc storage, magnetic box, magnetic tape, disk storage or other magnetic storage device, or can be used Any other medium for storing the desired information and accessible by the computer.

In an example, the computer-readable storage medium in this embodiment may be used to store one or more first programs, and the one or more first programs may be executed by one or more processors to implement the above multiple The steps of the method for direct link beam management on the source UE side shown in the embodiment.

In another example, the computer-readable storage medium in this embodiment may be used to store one or more second programs, and the one or more second programs may be executed by one or more processors to implement the above-mentioned multiple The steps of the direct link beam management method on the target UE side shown in the embodiments.

This embodiment also provides a first computer program (or first computer software). The first computer program may be distributed on a computer-readable medium and executed by a computing device, so as to implement the above-mentioned multiple embodiments. At least one step of the direct link beam management method on the source UE side shown; and in some cases, at least one step shown or described may be performed in a different order than that described in the above embodiments.

This embodiment also provides a second computer program (also referred to as second computer software), which may be distributed on a computer-readable medium and executed by a computable device, so as to implement the above-mentioned multiple embodiments. At least one step of the direct link beam management method on the target UE side shown; and in some cases, at least one step shown or described may be performed in a different order than that described in the above embodiments.

This embodiment also provides a first computer program product, which includes a computer-readable device, and the computer-readable device stores the first computer program as shown above. The computer-readable device in this embodiment may include a computer-readable storage medium as shown above.

This embodiment also provides a second computer program product, which includes a computer-readable device, and the computer-readable device stores the second computer program as shown above. The computer-readable device in this embodiment may include a computer-readable storage medium as shown above.

It can be seen that those skilled in the art should understand that all or some of the steps, systems, and functional modules / units in the devices disclosed in the above methods can be implemented as software (can be implemented by computer program code executable by a computing device ), Firmware, hardware, and appropriate combinations. In a hardware implementation, the division between functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components execute cooperatively. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit .

In addition, it is well known to those of ordinary skill in the art that a communication medium typically contains computer-readable instructions, data structures, computer program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium. Therefore, this application is not limited to any specific combination of hardware and software.

Claims

A straight-through link beam management method includes:

Obtain the configuration information of the straight-through link beam failure recovery;

Perform beam failure recovery processing according to the obtained configuration information of the beam failure recovery of the through link.
The direct link beam management method according to claim 1, wherein the direct link beam failure recovery configuration information is obtained by at least one of the following:

Obtaining the configuration information for the failure recovery of the through link beam from the base station;

Obtaining the configuration information of the straight-through beam failure recovery from the user equipment UE of the communication peer;

Obtain the configuration information of the straight link beam failure recovery from the pre-configuration information.
The direct link beam management method according to claim 1, wherein when the direct link beam failure recovery configuration information is obtained from the UE at the opposite end of the communication, the method includes acquiring the direct link from the UE through at least one of the following messages: Link beam failure recovery configuration information:

PC5 connection establishment message, PC5 connection establishment response message, PC5 bearer configuration message, PC5 bearer configuration response message, PC5 reconfiguration message, straight link beam failure recovery configuration message.
The direct link beam management method according to any one of claims 1 to 3, wherein the performing beam failure recovery processing according to the obtained direct link beam failure recovery configuration information comprises:

According to the straight-through link beam failure recovery configuration information, when a trigger of the through-link beam failure recovery condition is detected, a beam failure recovery processing message is sent to the opposite UE for beam recovery processing.
The direct link beam management method according to any one of claims 1-3, wherein the direct link beam failure recovery configuration information includes at least one of the following:

Whether to synchronize source UE indication information, supported direct link discovery mode indication information, beam failure detection resources, beam failure detection timer, maximum number of instances of beam failure, candidate beam resources, beam failure recovery timer, beam failure recovery request retransmission Timer, maximum number of beam failure recovery request retransmissions, maximum number of beam failure recovery requests, beam quality threshold.
The direct link beam management method according to claim 5, wherein the candidate beam resource comprises at least one of the following:

Beam index, through link synchronization reference signal, through link discovery signal, through link communication channel measurement signal, dedicated through link beam measurement signal, through link synchronization resource, through link communication resource, through link discovery resource, Beam failure recovery dedicated resources, beam failure recovery competes for the resource pool.
The direct link beam management method according to claim 6, wherein the method comprises at least one of the following:

Receiving a through link discovery announcement message sent by a peer UE, and measuring beam quality according to the through link discovery announcement message;

Sending a through link discovery request message to the opposite UE, and receiving a through link discovery response message sent by the opposite UE, and measuring the beam quality according to the through link discovery response message;

Receiving a direct link synchronization reference signal sent by the opposite UE to perform beam quality measurement when determining that the opposite UE is a synchronization source UE according to the indication information of the synchronization source UE;

Receiving data of a direct link communication channel sent by a peer UE to perform beam quality measurement;

Receiving the dedicated direct link beam measurement signal sent by the opposite UE to perform beam quality measurement.
The direct link beam management method according to claim 5, wherein the beam quality threshold comprises at least one of the following:

Threshold for receiving power of the through link synchronization reference signal, Threshold for receiving the thru link discovery signal, Threshold for receiving power for the thru link communication channel, Threshold for receiving power for the dedicated thru link beam measurement signal, indication of the strength of the thru link sync reference signal Threshold: Threshold of received signal strength indication of the through link discovery signal, Threshold of received signal strength indication of the communication channel of the thru link, Threshold of received signal strength indication of the dedicated thru link beam measurement signal.
The method for managing a direct link beam according to claim 4, wherein the detecting whether the recovery condition of a direct link beam failure is triggered comprises:

When the beam failure is detected, counting is started by the beam failure detection timer, and the count value of the beam failure instance is increased by 1;

Before the beam failure detection timer expires, if the beam failure detection is detected again, reset the beam failure detection timer to re-time, and increase the beam failure instance count value by 1; if the beam failure detection timer is not detected, Beam failure, setting the count value of the beam failure instance to 0;

If the current beam failure instance count value is greater than or equal to the maximum number of times that the beam failure instance is counted, it is determined that the through link beam failure recovery condition is triggered.
The direct link beam management method according to claim 4, wherein the sending a beam failure recovery processing message to the peer UE for beam recovery processing comprises at least one of the following methods:

Method 1: Select a beam resource from the candidate beam resources, and send a beam failure recovery request message to the opposite UE through the selected beam resource, where the beam failure recovery request message includes identification information of the local UE;

When a beam failure recovery response message sent by the peer UE through the beam resource is received, the beam failure recovery is successful, and the beam failure recovery response message includes identification information of the peer UE;

Manner 2: Select a beam resource from the candidate beam resources, and send direct link control information to the opposite UE through the selected beam resource, where the direct link control information includes at least one of the following:

Identification information of the local UE, identification information of the opposite UE, beam failure recovery indication, new beam direction, and no data transmission indication information;

Method 3: When a support mode A through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery announcement message is sent in multiple beam directions, and the through link discovery announcement message Including beam failure recovery indication;

Receive the PC5 signaling including the new beam direction sent by the opposite UE or the PC5 signaling sent by the opposite UE in at least one new beam direction, and the beam failure is successfully restored;

Method 4: When the support mode B through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery request message is sent in at least one beam direction, and the through link discovery request message Including beam failure recovery indication;

Received the through link discovery response message sent by the opposite UE in one beam direction, and the beam failure was successfully recovered.
The direct link beam management method according to claim 10, wherein the selecting a beam resource from the candidate beam resources comprises:

Selecting a beam resource with a beam quality higher than a beam quality threshold from the candidate beam resources;

or,

Select a beam resource with the highest beam quality from the candidate beam resources.
The direct link beam management method according to claim 10, wherein when performing the beam failure recovery process by the first method, further comprising:

After sending a beam failure recovery request message to the opposite UE through the selected beam resource, the timer starts counting through the beam failure recovery request retransmission timer;

When the beam failure recovery request retransmission timer expires, if the beam failure recovery response message sent by the peer UE has not been received, the beam failure recovery request message is resent to the peer UE through the selected beam resource. And re-counting through the beam failure recovery request retransmission timer and recording the number of retransmissions;

When the number of retransmissions is greater than the maximum number of retransmissions of the beam failure recovery request, reselecting beam resources to send a beam failure recovery request message to the peer UE;

or,

After sending the beam failure recovery request message to the opposite UE through the selected beam resource, start counting through the beam failure recovery timer;

When the beam failure recovery timer expires, if a beam failure recovery response message sent by the peer UE has not been received, reselecting a beam resource to send a beam failure recovery request message to the peer UE;

or,

Sending a beam failure recovery request message to the opposite UE through the selected beam resource, and starting timing through the beam failure recovery request retransmission timer and the beam failure recovery timer;

When the beam failure recovery request retransmission timer expires, if the beam failure recovery response message sent by the peer UE has not been received, the beam failure recovery request message is resent to the peer UE through the selected beam resource. And re-counting through the beam failure recovery request retransmission timer and recording the number of retransmissions;

Reselecting when the number of retransmissions is greater than the maximum number of retransmissions of the beam failure recovery request, and / or the beam failure recovery response message sent by the peer UE has not been received when the beam failure recovery timer expires The beam resource sends a beam failure recovery request message to the peer UE.
The straight-through link beam management method according to claim 12, wherein, when the number of times of reselecting the beam resource reaches the maximum number of times of recovery of the beam failure, or when there is no beam resource that satisfies the condition for selection, disconnecting or releasing Communication connection with a straight-through link of the opposite UE;

or,

When the number of times of reselecting the beam resource reaches the maximum number of times of beam failure recovery or there are currently no beam resources meeting the conditions for selection, and no data is received from the opposite UE within the current preset time period, the Open or release a direct link communication connection with the opposite UE.
The straight-through link beam management method according to claim 10, wherein, when performing a beam failure recovery process in the fourth manner, the sending a through-link discovery request message in at least one beam direction comprises:

Selecting at least one beam direction from at least one of the beam failure recovery dedicated resource and the beam failure recovery competitive resource pool;

Sending a through link discovery request message in the selected at least one wave speed direction.
The direct link beam management method according to any one of claims 1-3, further comprising:

When a beam reconfiguration condition trigger is detected, a beam reconfiguration process is performed.
The direct link beam management method according to claim 15, wherein the performing beam reconfiguration processing comprises:

Sending a reconfiguration message to the opposite UE in the currently used beam direction, where the reconfiguration message includes the selected new beam direction and identification information of the local UE;

When receiving the reconfiguration response message sent by the opposite UE in the currently used beam direction or the new beam direction, switching to the new beam direction for direct link communication with the opposite UE, so The reconfiguration response message includes at least one of identification information of the opposite UE and beam reconfiguration confirmation information.
The direct link beam management method according to claim 15, wherein the beam reconfiguration conditions include at least one of the following:

The quality of the currently used beam is lower than a preset first beam quality threshold;

There is currently a beam with a quality higher than the second beam quality threshold, and the quality of the beam is higher than the currently used beam quality.
The straight-through link beam management method according to claim 17, wherein the selected new beam direction is a beam direction with a highest current beam quality, or one of the beams whose beam quality is higher than the second beam quality threshold direction.
A straight-through link beam management method includes:

Receiving a beam failure recovery processing message sent by a peer UE;

Perform beam failure recovery processing according to the beam failure recovery processing message.
The direct link beam management method according to claim 19, further comprising:

Before receiving the beam failure recovery processing message sent by the opposite UE, sending the direct link beam failure recovery configuration information to the opposite UE.
The direct link beam management method according to claim 19, wherein the receiving a beam failure recovery processing message sent by a peer UE and performing the beam failure recovery processing according to the beam failure recovery processing message include at least one of the following modes: one:

Method 1: Receive a beam failure recovery request message sent by a peer UE through a selected beam resource from candidate beam resources, where the beam failure recovery request message includes identification information of the peer UE;

Sending a beam failure recovery response message on the beam resource, and switching to the beam resource for direct link communication with the peer UE, where the beam failure recovery response message includes identification information of the local UE;

Method 2: Receive the direct link control information sent by the peer UE through the selected beam resource from the candidate beam resources, where the direct link control information includes at least one of the following: identification information of the peer UE and identification information of the local UE , Beam failure recovery indication, new beam direction, no data transmission indication information;

Switching to the new beam direction for direct link communication with the opposite UE;

Method 3: receiving a through link discovery announcement message sent by a peer UE in multiple beam directions, where the through link discovery announcement message includes a beam failure recovery indication;

Sending PC5 signaling including a new beam direction to the opposite UE in at least one beam direction, or sending PC5 signaling to the opposite UE in at least one new beam direction, and switching to the new beam direction and the same The peer UE communicates through the link;

Method four: receiving a peer UE sending a through link discovery request message in at least one beam direction, where the through link discovery request message includes a beam failure recovery indication;

In receiving the direct link discovery request message beam direction, select one to send a direct link discovery response message to the peer UE, and switch to the selected beam direction to perform a direct link with the peer UE Communication.
The direct link beam management method according to any one of claims 19 to 21, further comprising:

Receiving a reconfiguration message sent by a peer UE in a currently used beam direction, where the reconfiguration message includes a selected new beam direction and identification information of the peer UE;

Sending a reconfiguration response message in the currently used beam direction or the new beam direction, and switching to the new beam direction for direct link communication with the peer UE, the reconfiguration response message includes the current At least one of the identification information of the end UE and the beam reconfiguration confirmation information.
A direct link beam management device includes:

A first information acquisition module, configured to acquire configuration information for failure recovery of a straight link beam;

The first processing module is configured to perform beam failure recovery processing according to the obtained straight link beam failure recovery configuration information.
The direct link beam management device according to claim 23, wherein the first information acquisition module is configured to acquire the direct link beam failure recovery configuration information by at least one of the following:

Obtaining the configuration information for the failure recovery of the through link beam from the base station;

Obtaining configuration information of the straight-through beam failure recovery from the UE at the opposite end of the communication;

Obtain the configuration information of the straight link beam failure recovery from the pre-configuration information.
The direct link beam management device according to claim 23 or 24, wherein the first processing module is configured to, according to the direct link beam failure recovery configuration information, upon detecting that a direct link beam failure recovery condition triggers , Sending a beam failure recovery processing message to the opposite UE for beam recovery processing.
The direct link beam management device according to claim 23 or 24, wherein the direct link beam failure recovery configuration information includes at least one of the following:

Whether to synchronize source UE indication information, supported direct link discovery mode indication information, beam failure detection resources, beam failure detection timer, maximum number of instances of beam failure, candidate beam resources, beam failure recovery timer, beam failure recovery request retransmission Timer, maximum number of beam failure recovery request retransmissions, maximum number of beam failure recovery requests, beam quality threshold.
The direct link beam management apparatus according to claim 26, wherein the candidate beam resource comprises at least one of the following:

Beam index, through link synchronization reference signal, through link discovery signal, through link communication channel measurement signal, dedicated through link beam measurement signal, through link synchronization resource, through link communication resource, through link discovery resource, Beam failure recovery dedicated resources, beam failure recovery competes for the resource pool.
The direct link beam management device according to claim 25, wherein the first processing module is configured to start timing through the beam failure detection timer when the beam failure is detected, and count the number of instances of beam failure The value is increased by 1; and before the beam failure detection timer expires, if the beam failure is detected again, the beam failure detection timer is reset and retimed, and the beam failure instance count value is increased by 1 If the beam failure is not detected, the beam failure instance count value is set to 0; the first processing module is further used to determine a pass-through when the current beam failure instance count value is greater than or equal to the maximum number of beam failure instances Link beam failure recovery condition triggered.
The direct link beam management apparatus according to claim 25, wherein the first processing module is configured to send a beam failure recovery processing message to the opposite UE for beam recovery processing in at least one of the following ways:

Method 1: Select a beam resource from the candidate beam resources, and send a beam failure recovery request message to the opposite UE through the selected beam resource, where the beam failure recovery request message includes identification information of the local UE;

When a beam failure recovery response message sent by the peer UE through the beam resource is received, the beam failure recovery is successful, and the beam failure recovery response message includes identification information of the peer UE;

Manner 2: Select a beam resource from the candidate beam resources, and send direct link control information to the opposite UE through the selected beam resource, where the direct link control information includes at least one of the following:

Identification information of the local UE, identification information of the opposite UE, beam failure recovery indication, new beam direction, and no data transmission indication information;

Method 3: When a support mode A through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery announcement message is sent in multiple beam directions, and the through link discovery announcement message Including beam failure recovery indication;

Receive the PC5 signaling including the new beam direction sent by the opposite UE, and the PC5 signaling sent by the opposite UE in at least one new beam direction, and the beam failure is successfully restored;

Method 4: When the support mode B through link discovery mode is determined according to the supported through link discovery mode indication information, a through link discovery request message is sent in at least one beam direction, and the through link discovery request message Including beam failure recovery indication;

Received the through link discovery response message sent by the opposite UE in one beam direction, and the beam failure was successfully recovered.
The direct link beam management device according to claim 23 or 24, further comprising a first reconfiguration module configured to perform beam reconfiguration processing when a trigger of a beam reconfiguration condition is detected.
A direct link beam management device includes:

A second information acquisition module, configured to receive a beam failure recovery processing message sent by a peer UE;

The second processing module is configured to perform beam failure recovery processing according to the beam failure recovery processing message.
The direct link beam management apparatus according to claim 31, further comprising an information sending module configured to send to the opposite UE before the second information obtaining module receives the beam failure recovery processing message sent by the opposite UE. Straight-through beam failure recovery configuration information.
The direct link beam management device according to claim 32, wherein the second processing module is configured to perform beam failure recovery processing in at least one of the following ways:

Method 1: Receive a beam failure recovery request message sent by a peer UE through a selected beam resource from candidate beam resources, where the beam failure recovery request message includes identification information of the peer UE;

Sending a beam failure recovery response message on the beam resource, and switching to the beam resource for direct link communication with the peer UE, where the beam failure recovery response message includes identification information of the local UE;

Method 2: Receive the direct link control information sent by the peer UE through the selected beam resource from the candidate beam resources, where the direct link control information includes at least one of the following: identification information of the peer UE and identification information of the local UE , Beam failure recovery indication, new beam direction, no data transmission indication information;

Switching to the new beam direction for direct link communication with the opposite UE;

Method 3: receiving a through link discovery announcement message sent by a peer UE in multiple beam directions, where the through link discovery announcement message includes a beam failure recovery indication;

Sending PC5 signaling including a new beam direction to the opposite UE in at least one beam direction, or sending PC5 signaling to the opposite UE in at least one new beam direction, and switching to the new beam direction and the same The peer UE communicates through the link;

Method four: receiving a peer UE sending a through link discovery request message in at least one beam direction, where the through link discovery request message includes a beam failure recovery indication;

In receiving the direct link discovery request message beam direction, select one to send a direct link discovery response message to the peer UE, and switch to the selected beam direction to perform a direct link with the peer UE Communication.
The direct link beam management device according to any one of claims 31 to 33, further comprising a second reconfiguration module configured to receive a reconfiguration message sent by a peer UE in a beam direction currently used, the reconfiguration The message includes the selected new beam direction and the identification information of the opposite UE; and is configured to send a reconfiguration response message in the currently used beam direction or the new beam direction, and switch to the new beam direction Perform direct link communication with the peer UE, and the reconfiguration response message includes identification information and / or beam reconfiguration confirmation information of the local UE.
A user equipment includes a first processor, a first memory, and a first communication bus;

The first communication bus is configured to implement a communication connection between the first processor and the first memory;

The first processor is configured to execute one or more first programs stored in the first storage to implement the steps of the through link beam management method according to any one of claims 1-18.
A user equipment including a second processor, a second memory, and a second communication bus;

The second communication bus is configured to implement a communication connection between the second processor and the second memory;

The second processor is configured to execute one or more second programs stored in the second memory to implement the steps of the through link beam management method according to any one of claims 19-22.
A computer-readable storage medium, wherein the computer-readable storage medium stores one or more first programs, and the one or more first programs can be executed by one or more processors to implement the rights as The steps of the method for direct link beam management according to any one of claims 1-18;

or,

The computer-readable storage medium stores one or more second programs, and the one or more second programs are executable by one or more processors to implement the method according to any one of claims 19-22. Steps of the through link beam management method.