CN117279091A

CN117279091A - Beam indication method, device and terminal

Info

Publication number: CN117279091A
Application number: CN202210669834.6A
Authority: CN
Inventors: 杨聿铭; 王欢; 纪子超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2023-12-22
Also published as: WO2023241539A1

Abstract

The application discloses a beam indication method, a device and a terminal, which belong to the field of mobile communication, and the beam indication method in the embodiment of the application comprises the following steps: the first terminal receives first beam information from the second terminal, wherein the first beam information is used for indicating a first beam for carrying out sidelink communication for the first terminal.

Description

Beam indication method, device and terminal

Technical Field

The application belongs to the technical field of mobile communication, and particularly relates to a beam indication method, a beam indication device and a beam indication terminal.

Background

A long term evolution (Long Term Evolution, LTE) system supports sidelink (or sidelink, etc.) transmission, i.e., data transmission between terminals (also referred to as User Equipment (UE)) directly on a physical layer. LTE sidelink is broadcast based and is not suitable for other higher level V2X services, although it may be used to support basic security class communications for internet of vehicles (vehicle to everything, V2X). A New window (NR) system will support more advanced sidelink transmission designs, such as unicast, multicast or multicast, so that more comprehensive service types can be supported.

Due to the lack of low Frequency resources, 5G NR uses a high Frequency band such as millimeter wave, for example, frequency Range 2 (fr 2). Since the propagation loss in the high frequency band is larger than that in the low frequency band, the coverage distance is inferior to that of LTE. Therefore, the 5GNR realizes the reinforcement of signals in a multi-antenna Beam Forming (Beam Forming) mode, and further realizes the coverage reinforcement. Beamforming is currently a signal processing technique that uses an array of sensors to directionally transmit and receive signals. The beam forming technology enables signals of certain angles to obtain constructive interference and signals of other angles to obtain destructive interference by adjusting parameters of basic units of the phased array, so that an antenna beam is directed in a specific direction.

In the Sidelink high-frequency band, the receiving end has no definition on how to determine the receiving beam, so as to perform the actions of beam adjustment and data transmission.

Disclosure of Invention

The embodiment of the application provides a beam indicating method, a beam indicating device and a terminal, which can solve the problem of how to determine a received beam so as to perform the actions of beam adjustment and data transmission.

In a first aspect, a beam indicating method is provided, applied to a first terminal, and the method includes:

The first terminal receives first beam information from the second terminal, wherein the first beam information is used for indicating a first beam for carrying out sidelink communication for the first terminal.

In a second aspect, there is provided a beam pointing apparatus comprising:

a first transmission module for receiving first beam information from a second terminal;

and the first execution module is used for configuring a first beam for carrying out sidelink communication according to the first beam information.

In a third aspect, a beam indicating method is provided and applied to a second terminal, where the method includes:

the second terminal sends first beam information to the first terminal, wherein the first beam information indicates a first beam for carrying out sidelink communication for the first terminal.

In a fourth aspect, there is provided a beam pointing apparatus comprising:

the second execution module is used for determining a first beam indicated by the first terminal and used for carrying out sidelink communication;

and the second transmission module is used for transmitting first beam information to the first terminal, wherein the first beam information indicates the first beam for the first terminal.

In a fifth aspect, there is provided a first terminal comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method as described in the first aspect.

In a sixth aspect, a first terminal is provided, including a processor and a communication interface, where the processor is configured to configure a first beam for sidelink communication according to the first beam information, and the communication interface is configured to receive the first beam information from a second terminal.

In a seventh aspect, there is provided a second terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the third aspect.

In an eighth aspect, a second terminal is provided, including a processor and a communication interface, where the processor is configured to determine a first beam indicated for the first terminal and used for performing sidelink communications, and the communication interface is configured to send first beam information to the first terminal, where the first beam information indicates the first beam for the first terminal.

In a ninth aspect, there is provided a beam pointing system comprising: a first terminal operable to perform the steps of the beam pointing method as described in the first aspect, and a second terminal operable to perform the steps of the beam pointing method as described in the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the beam pointing method according to the first aspect or to implement the steps of the beam pointing method according to the third aspect.

In the embodiment of the application, the first beam information is received from the second terminal, and the first beam for carrying out the sidelink communication is determined according to the first beam information, so that the first terminal can carry out the sidelink communication based on the configured first beam, thereby improving the signal strength and increasing the coverage area.

Drawings

Fig. 1 is a schematic structural diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic structural diagram of a sidelink communication system according to an embodiment of the present application;

fig. 3 is a schematic flow chart of a beam indication method according to an embodiment of the present application;

fig. 4 is a flowchart of another beam pointing method according to an embodiment of the present application;

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

fig. 6 is a flowchart of another beam pointing method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another beam pointing apparatus according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal implementing an embodiment of the present application;

fig. 10 is a schematic structural diagram of another terminal implementing an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier FrequencyDivision Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a new air interface (NR) system for purposes of example and uses NR in much of the description that follows The terms, however, are also applicable to applications other than NR system applications, such as generation 6 (6 ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmitting/receiving point (TransmittingReceivingPoint, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: a core network node, a core network function, a mobility management entity (Mobility Management Entity, MME), an access mobility management function (Access and Mobility Management Function, AMF), a session management function (Session Management Function, SMF), a user plane function (User Plane Function, UPF), a policy control function (Policy Control Function, PCF), a policy and charging rules function (Policy and Charging Rules Function, PCRF), an edge application service discovery function (EdgeApplicationServerDiscoveryFunction, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), a home subscriber server (Home Subscriber Server, HSS), a centralized network configuration (Centralized network configuration, CNC), a network storage function (Network Repository Function, NRF), a network opening function (NetworkExposureFunction, NEF), a local NEF (LocalNEF, or L-NEF), a binding support function (Binding Support Function, BSF), an application function (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The beam indication method, the beam indication device and the terminal provided by the embodiment of the application are described in detail below by means of some embodiments and application scenes thereof with reference to the accompanying drawings.

As shown in fig. 2 and 3, the embodiment of the present application provides a beam pointing method, where the execution body of the method is a first terminal, in other words, the method may be executed by software or hardware installed in the first terminal. The method comprises the following steps.

S310, the first terminal receives first beam information from the second terminal, wherein the first beam information is used for indicating a first beam for carrying out sidelink communication for the first terminal.

As shown in fig. 2, the sidelink communication between the first terminal 21 and the second terminal 22 may employ a variety of transmission designs, such as unicast, multicast or multicast. In order to solve the problem that the coverage distance is poor due to large propagation loss of a high-frequency band, the signal is reinforced in a multi-antenna Beam Forming (Beam Forming) mode, and further coverage is reinforced.

The second terminal sends first beam information to the first terminal for indicating to the first terminal a first beam for sidelink communication, in one embodiment, the first beam comprises at least one of:

The target beam may include a receive beam of the first terminal or a transmit beam of the second terminal; for example, the second terminal indicates the transmission beam of the second terminal to the first terminal by transmitting the first beam information, or directly indicates the reception beam of the first terminal for the sidelink communication;

the target beam pair may include a receive beam of the first terminal and a transmit beam of the second terminal;

a target beam group.

The first beam information may be transmitted via one or more messages, and in one embodiment, the first beam information is carried by at least one of:

first section sidelink control information (firstStageSidelinkControl Information,1 ^st Stage SCI)；

Second section sidelink control information (2 ^nd Stage SCI)；

A medium access control unit (Medium Access Control ControlElement, MACCE);

a sidelink radio resource control (PC 5 Radio Resource Control, PC5 RRC) message;

reference Signals (RSs), such as demodulation Reference signals (Demodulation Reference Signal, DMRS), channel state information Reference signals (Channel State Information Reference Signal, CSI-RS), synchronization signals/physical broadcast block channel Signal blocks (Synchronization Signal/Physical broadcast channel block, SSB);

Scrambling (Scrambling). For example, different scrambling sequences correspond to different beams.

In one embodiment, the first beam information includes at least one of:

the identification information of the first terminal, for example, identification (ID) of the first terminal, and the first terminal may identify the first beam information sent to itself according to the identification of the first terminal; in one embodiment, in the case that there is a correspondence between the first beam and the identifier of the first terminal, the first terminal may determine, by using, for example, a table look-up method, a modulo method, or the like, the first beam according to the identifier of the first terminal, that is, determine the identifier of the transmitting beam or the receiving beam for performing the sidelink communication;

the second terminal identification information, for example, the second terminal identification, the first terminal may adjust the receiving beam according to the second terminal identification, and in the case that there is a correspondence between the first beam and the second terminal identification, for example, table look-up, modulo calculation, etc., the first beam may be determined according to the second terminal identification, that is, the identification of the transmitting beam or the receiving beam for performing the sidelink communication may be determined;

the identification information of the first beam may specifically include a target beam, a target beam pair, a target beam cluster or a target beam group indicated to the first terminal, and correspondingly, the identification information of the first beam may be a sequence number of the target beam, a sequence number of the target beam pair, a sequence number of the target beam cluster or a sequence number of the target beam group;

Quasi co-location (QCL) identification information; such as QCL indication, QCL group, QCL factor, QCL type. The terminal determines a first beam according to the quasi co-sited identification information.

Transmitting a configuration indication (Transmission Configuration Indicator, TCI) state (state); the terminal determines the first beam according to the network or the TCI configured/preconfigured by the terminal.

Identification information of the reference signal, such as an identification or a sequence number of the reference signal, the first terminal may determine the first beam based on TCIStat and/or the identification information of the reference signal;

time domain information corresponding to the first beam;

the first indication information is used for indicating a determining method of the first beam;

the resource pool information corresponding to the first beam, it should be understood that different resource pools may utilize different beams or different beam pairs or different beam groups for sidelink communications;

the number N of the transmission blocks corresponding to the first wave beam, namely the number of the transmission blocks which can be transmitted when the first terminal applies the first wave beam to carry out the sidelink communication;

the number of transmission resources R corresponding to the first beam, namely the number of transmission resources which can be transmitted when the first terminal applies the first beam to carry out the sidelink communication;

The time length corresponding to the first wave beam, namely the time length or the time range of the first terminal for carrying out the sidelink communication by applying the first wave beam;

resources corresponding to the first beam;

and second indication information, wherein the second indication information is used for indicating the application time of the first beam.

The time domain information corresponding to the first beam may be indicated directly or indirectly by the first beam information, for example, according to a preset defined or agreed correspondence between beams and time, the time domain position of the first beam is indicated directly or indirectly by the first beam information, and/or the time domain information corresponding to the first beam is determined by the first terminal according to the correspondence, where in an embodiment, the time domain information corresponding to the first beam may include at least one of the following based on different time units:

slot index (Slot index), sub-Slot index (sub-Slot index), symbol index (symbol index);

time slot interval, sub-slot interval, symbol interval;

start Slot (Start Slot), start sub-Slot (Start sub-Slot), start symbol (Start symbol).

In an embodiment, the first indication information may directly indicate the first terminal to apply a first beam carried by the first beam information, including at least one of the following:

The first terminal applies a target beam, namely, the first terminal directly indicates a receiving beam of the first terminal in first beam information, and the first terminal is indicated to apply the receiving beam by first indication information;

the first terminal applies a target beam pair, that is, a receiving beam of the first terminal and a transmitting beam of the second terminal are directly indicated in the first beam information, and the first terminal is instructed to apply the receiving beam by the first indication information.

In another embodiment, the first indication information may be an identifier triggering a beam scanning process or a beam training process, and is used to instruct the first terminal to perform the beam scanning process or instruct the first terminal to perform the beam training process, where the first indication information may further instruct the first terminal to perform the beam scanning process or the beam training process to target a beam group or all beams. For example, after a beam failure (beam failure) occurs, determining an appropriate target beam by instructing the first terminal to perform a beam scanning process or a beam training process through first instruction information; or before the first receiving and transmitting of the first terminal and the second terminal, if the beam pair is not trained, the first terminal is instructed to execute a beam scanning process or a beam training process through the first instruction information to determine a proper target beam or a target beam pair; or when the second terminal adopts a multi-slot method to carry out the sidelink communication, the first terminal is instructed to execute the wave beam scanning receiving through the first instruction information, namely, the wave beams in different directions are used for receiving on different time slots; or when the second terminal detects the conditions of signal quality reduction and the like of the current communication beam, the first terminal is instructed to execute the beam scanning or the beam training process by the first instruction information to judge whether the target beam or the target beam pair needs to be adjusted or switched.

In one embodiment, the resources corresponding to the first beam may be associated with sidelink control information carrying the first beam informationIs a resource of (1); for example, 1 ^st The aperiodic reserved resources and or periodic reserved resources indicated in SCI.

In another embodiment, the resource corresponding to the first beam may also be a resource associated with a medium access control unit carrying the first beam information; for example, the authorized resources indicated by the MAC CE.

In another embodiment, the resource corresponding to the first beam may also be an grant (grant) resource of the first terminal.

In another embodiment, the second indication information may be further used to instruct the first terminal to apply the first beam until new first beam information is received.

In one embodiment, the first terminal applying the first beam may be used to transmit at least one of:

a reference signal;

data information;

control information;

and synchronizing the signal blocks.

As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, first beam information is received from a second terminal, and then a first beam for performing sidelink communication is determined according to the first beam information, so that the first terminal may perform sidelink communication based on the configured first beam, so as to improve signal strength and increase coverage.

Based on the above embodiment, further, after step S310, the method includes:

the first terminal performs at least one of the following according to the first beam information:

the first terminal determines a receiving beam, for example, a target beam can be used as the receiving beam when the sidelink communication is carried out, or the receiving beam is adjusted or switched based on the target beam pair;

the first terminal applies the first beam;

the first terminal feeds back an Acknowledgement message (such as ACK, MAC CE, and response information) to the second terminal, for informing the second terminal that the first beam information has been received, and performing sidelink communication according to the first beam;

the first terminal feeds back a non-acknowledgement message (for example, NACK (negative acknowledgement) to the second terminal, so as to inform the second terminal that the second terminal cannot perform sub-link communication according to the first beam or does not perform beam adjustment or switching operation;

the first terminal executes a beam training process; for example, after receiving the first beam information, the first terminal knows that the second terminal needs to communicate with itself, the first terminal can determine the first beam by executing a beam training process, determine an appropriate transmission beam through beam measurement, feed back to the second terminal, and then determine an appropriate receiving beam through beam scanning based on determining the transmission beam.

The first terminal executes a beam scanning process; for example, the first beam information indicated by the second terminal includes a plurality of beams, and the first terminal may perform beam measurement on the beams, and select an optimal reception beam and/or transmission beam.

And the first terminal sends the measurement result obtained in the beam scanning process to the second terminal. For example, the first terminal feeds back a reference signal received power (Reference Signal Received Power, RSRP) value measured by beam scanning to the second terminal, or directly feeds back a transmission beam and/or a reception beam determined by beam scanning to the second terminal.

It should be noted that, the first terminal may perform the beam training process and/or the beam scanning process, which may be triggered based on the first indication information in the first beam information, or may be triggered by the first terminal after receiving the first beam information, and the first terminal may determine whether a better first beam exists according to a measurement result obtained in the beam training process and/or the beam scanning process, and if so, may apply the better first beam to perform the sidelink communication, or feed back the better first beam to the second terminal.

In one embodiment, the second terminal indicates, to the first terminal, a transmission beam of the second terminal when performing the sidelink communication through the first beam information, and the first terminal may determine an optimal reception beam through a beam training process or a beam scanning process after receiving the first beam information.

Optionally, the measurement result includes at least one of:

the receiving quality of the wave beam measured in the wave beam scanning process;

and N candidate beams are determined according to the beam scanning process, wherein N is a positive integer.

Optionally, as shown in fig. 4, after step S310, the method further includes:

s320, the first terminal performs sidelink communication based on the first wave beam.

And the first terminal applies the first beam to carry out sidelink communication according to the first beam information.

When the second terminal sends the first beam information to the first terminal, the processing time of the first terminal on the first beam information and the time for adjusting or switching the beam need to be considered, if the indication is too late, the first terminal may not perform sidelink communication based on the first beam indicated by the first beam information, but if the indication is too early, the first beam information may not be accurate any more due to the movement of the first terminal.

In one embodiment, the transmission time of the first beam information by the second terminal is before a second time interval T2 before a time T0 for applying the first beam for sidelink communication with the first terminal. Accordingly, it may also be required for the first terminal to perform the sidelink communication with the second terminal according to the first beam after the first time interval T1 after receiving the first beam information.

The first time interval T1 and the second time interval T2 at least need to include a processing time of the first terminal to the first beam information and a beam adjustment or switching time, and the first time interval and/or the second time interval may be determined by at least one of the following:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ), including time to wait for feedback opportunity (timing);

Feedback processing time of the hybrid automatic repeat request.

For example, if the first beam information is carried by the first link control information or the second link control information, the second time interval may be a sum of a processing time of the first link control information or the second link control information and a beam adjustment or switching time;

if the first beam information is carried by the medium access control unit, the second time interval may be a sum of a processing time of the medium access control unit and a beam adjustment or switching time.

In addition, if the first terminal and the second terminal agree that after the first terminal receives the feedback information received by the second terminal, it is determined whether the sub-link communication can be performed according to the indicated first beam according to the feedback information, for this reason, the feedback preparation time of the HARQ of the first terminal and the feedback processing time of the HARQ of the second terminal need to be reserved.

Optionally, step S330 includes at least one of:

performing sidelink communication based on the first beam in X time units; wherein, X is a positive integer;

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

Performing sidelink communication based on the first beam on resources associated with sidelink control information carrying the first beam information;

performing sidelink communication on the authorized resource of the first terminal based on the first wave beam;

performing sidelink communication on a hybrid automatic repeat request process (process) of the first terminal based on the first beam, for example, the current hybrid automatic repeat request process or all hybrid automatic repeat request processes can be performed;

and carrying out sidelink transmission based on the first beam until new first beam information is received.

The first terminal may receive multiple pieces of first beam information simultaneously or sequentially, and the first terminal may apply one piece of first beam information or synthesize multiple pieces of first beam information to determine a first beam based on a preset rule, in an embodiment, in a case that the first terminal receives M pieces of first beam information, where M is a positive integer greater than 1, the first terminal determines a first beam for performing sidelink communication with the second terminal according to at least one of the following:

the first beam information with the highest priority;

the first beam information received the latest.

The priority of the first beam information may be a priority of information to be transmitted by a terminal that transmits the first beam information, and when M pieces of first beam information received by the first terminal originate from different terminals, a terminal with a highest priority may be determined based on the comparison of priorities, and a first beam for performing sidelink communication may be determined according to the first beam information transmitted by the terminal with the highest priority.

The priority of the first beam information may be a priority of a first beam determined based on the first beam information, and the first terminal may perform the sidelink communication by using a first beam with the highest priority based on the determined priority of the first beam.

Under the condition that M pieces of first beam information received by the first terminal are from the same terminal, the first beam can be determined according to the latest received first beam information according to the receiving time, so that the terminal can continuously adjust the beam according to the link condition, and the quality of a communication link is ensured.

Since the first beam information may need to be carried on the control information and may need to be sent to the first terminal first compared with the data information, the first terminal may adjust the beam according to the indicated first beam information, and perform transmission of the data information. In order to save the overhead of signaling, a design may be considered in which the control information is separated from the data information, i.e. the control channel is no longer located at the same time as the data channel, but the control channel is transmitted simultaneously when the first beam information is transmitted. For example, the second terminal first transmits 1 ^st SCI and/or 2 ^nd SCI for carrying first beam information and associated modulation and coding schemes (Modulation and coding scheme, MCS), time-frequency domain indication information, etc., and then transmitting data information and or a small amount of control information at reserved resource locations.

Optionally, the first beam information and the information transmitted by applying the first beam are located in the same or different resources, and the resources include at least one of the following:

a resource pool;

partial BandWidth (BWP);

and (3) a carrier wave.

By the technical scheme of the embodiment, the first beam is determined by executing various operations after the first beam information is received, and the sidelink communication is performed according to the first beam, so that the first terminal can perform the sidelink communication based on the configured first beam, thereby improving the signal strength and increasing the coverage area.

According to the beam indicating method provided by the embodiment of the application, the execution body can be a beam indicating device. In the embodiment of the present application, a beam indication device executes a beam indication method as an example, and the beam indication device provided in the embodiment of the present application is described.

As shown in fig. 5, the beam indicating device includes: a first transmission module 501 and a first execution module 502.

The first transmission module 501 is configured to receive first beam information from a second terminal; the first execution module 502 is configured to configure a first beam for sidelink communication according to the first beam information.

Optionally, the first beam includes at least one of:

a target beam;

a target beam pair;

a target beam group.

Optionally, the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

Optionally, the first beam is used to transmit at least one of the following information:

a reference signal;

data information;

control information;

and synchronizing the signal blocks.

Optionally, the time of the sidelink communication with the second terminal according to the first beam is after a first time interval after receiving the first beam information.

Optionally, the first time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

Beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

Optionally, the first beam information includes at least one of:

identification information of the beam indicating device;

identification information of the second terminal;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

a number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

Optionally, the first indication information is used to indicate at least one of the following:

the beam pointing device applies a target beam;

The beam pointing device applies a target beam pair;

the beam indicating device executes a beam scanning process;

the beam pointing apparatus performs a beam training process.

Optionally, the resource corresponding to the first beam is at least one of:

resources associated with sidelink control information carrying the first beam information;

a resource associated with a media access control unit carrying the first beam information;

the beam indicates authorized resources of the device.

Optionally, the second indication information is used to indicate that the first beam is applied until new first beam information is received.

As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, by receiving first beam information from a second terminal, and determining a first beam for performing sidelink communication according to the first beam information, sidelink communication may be performed based on the configured first beam, so as to improve signal strength and increase coverage.

Based on the above embodiment, further, the first execution module 502 is further configured to:

performing at least one of the following according to the first beam information:

determining the first beam;

applying the first beam;

Feeding back a confirmation message to the second terminal;

feeding back a non-acknowledgement message to the second terminal;

performing a beam training process;

performing a beam scanning process;

and sending the measurement result obtained in the beam scanning process to the second terminal.

Optionally, the measurement result includes at least one of:

Optionally, in the case that M pieces of first beam information are received, where M is a positive integer greater than 1, determining a first beam for performing sidelink communication with the second terminal according to at least one of:

the first beam information with the highest priority;

the first beam information received the latest.

Optionally, the first transmission module 501 is further configured to perform sidelink communications based on the first beam.

Optionally, the first transmission module 501 is configured to:

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

performing sidelink communication based on the first beam on authorized resources of the beam indicating device;

performing sidelink communication based on the first beam on a hybrid automatic repeat request process of the beam indicating device;

a resource pool;

partial bandwidth;

and (3) a carrier wave.

By the technical scheme of the embodiment, the embodiment of the application determines the first beam by executing various operations after receiving the first beam information, and performs the sidelink communication according to the first beam, so that the sidelink communication can be performed based on the configured first beam, thereby improving the signal strength and increasing the coverage area.

The beam pointing apparatus in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The beam indicating device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 2 to fig. 4, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

As shown in fig. 6, the embodiment of the present application further provides a beam pointing method, where the execution body of the method is the second terminal, in other words, the method may be executed by software or hardware installed in the second terminal. The method comprises the following steps.

And S610, the second terminal sends first beam information to the first terminal, wherein the first beam information indicates a first beam for carrying out the sidelink communication for the first terminal.

Optionally, the first beam includes at least one of:

a target beam;

a target beam pair;

a target beam group.

Optionally, the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

a reference signal;

data information;

control information;

And synchronizing the signal blocks.

Optionally, the sending time of the first beam information is before a second time interval before the time of applying the first beam to perform the sidelink communication with the first terminal.

Optionally, the second time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

Optionally, the first beam information includes at least one of:

identification information of the first terminal;

identification information of the second terminal;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

A number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

the first terminal applies a target beam;

the first terminal applies a target beam pair;

the first terminal executes a beam scanning process;

and the first terminal executes a wave beam training process.

Optionally, the resource corresponding to the first beam is at least one of:

and authorizing resources of the first terminal.

Optionally, the second indication information is used to instruct the first terminal to apply the first beam until new first beam information is received.

The embodiments of the present application may implement the method embodiments shown in fig. 2 and fig. 3, and obtain the same technical effects, and the repetition of which is not repeated here.

As can be seen from the technical solutions of the foregoing embodiments, in the embodiments of the present application, first beam information is sent to a first terminal, where the first beam information indicates a first beam for performing sidelink communication for the first terminal, so that sidelink communication can be performed based on the configured first beam, so as to improve signal strength and increase coverage.

Based on the above embodiment, optionally, after step S610, the method further includes at least one of:

the second terminal receives a feedback confirmation message from the first terminal; after receiving the confirmation message, the second terminal can communicate on the corresponding resource according to the first beam determined by the indication;

receiving a feedback unacknowledged message from the first terminal; after receiving the unacknowledged message, the second terminal can immediately trigger reselection to select a new first beam and/or a corresponding resource, and then instruct the first terminal to perform the first beam of the sidelink communication again, or discard the data packet to be transmitted, and temporarily do not perform the communication;

the second terminal executes a beam training process; after the second terminal sends the first beam information, the second terminal starts to scan the transmitted beam, so that the first terminal determines a proper transmission beam through beam measurement, and then according to the determined transmission beam, the first terminal can determine a proper receiving beam through beam scanning and/or beam measurement;

The second terminal executes a beam scanning process; for example, after transmitting the first beam information, the second terminal starts to perform beam scanning of the transmission, so that the first terminal determines a suitable transmission beam through beam measurement;

the second terminal receives the measurement result obtained by the beam scanning process from the first terminal.

Optionally, the measurement result includes at least one of:

Optionally, after step S610, the method further includes:

the second terminal communicates with the first terminal via a sidelink based on the first beam.

Optionally, the second terminal performing the sidelink communication with the first terminal based on the first beam includes at least one of:

performing sidelink communication with the first terminal based on the first beam in X time units; wherein, X is a positive integer;

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

performing sidelink communication on the target operation processing process based on the first wave beam;

a resource pool;

partial bandwidth;

and (3) a carrier wave.

The embodiment of the present application may implement the method embodiment shown in fig. 4, and obtain the same technical effects, and the repetition of the description is omitted here.

By adopting the technical scheme of the embodiment, various operations are performed after the first beam information is sent, so that the sidelink communication can be performed based on the configured first beam, thereby improving the signal strength and increasing the coverage area.

As shown in fig. 7, the beam pointing apparatus includes: a second transmission module 701 and a second execution module 701.

The second execution module 702 is configured to determine a first beam indicated for the first terminal for performing sidelink communication; the second transmission module 701 sends first beam information to a first terminal, where the first beam information indicates the first beam to the first terminal.

Optionally, the first beam includes at least one of:

a target beam;

a target beam pair;

a target beam group.

Optionally, the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

a reference signal;

data information;

control information;

and synchronizing the signal blocks.

Optionally, the second time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

A sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

Optionally, the first beam information includes at least one of:

identification information of the first terminal;

identification information of the beam indicating device;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

a number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

The first terminal applies a target beam;

the first terminal applies a target beam pair;

the first terminal executes a beam scanning process;

and the first terminal executes a wave beam training process.

Optionally, the resource corresponding to the first beam is at least one of:

and authorizing resources of the first terminal.

Based on the above embodiment, optionally, the second execution module 702 is further configured to execute at least one of the following:

receiving a feedback acknowledgement message from the first terminal;

Receiving a feedback unacknowledged message from the first terminal;

performing a beam training process;

performing a beam scanning process;

and receiving a measurement result obtained by the beam scanning process from the first terminal.

Optionally, the measurement result includes at least one of:

Optionally, the second transmission module 701 is further configured to:

and carrying out sidelink communication with the first terminal based on the first beam.

Optionally, the second transmission module 701 is configured to perform at least one of the following:

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

a resource pool;

partial bandwidth;

and (3) a carrier wave.

The beam indicating device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 6, and achieve the same technical effects, so that repetition is avoided, and details are not repeated here.

Optionally, as shown in fig. 8, the embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802, where the memory 802 stores a program or instructions that can be executed on the processor 801, for example, when the communication device 800 is a terminal, the program or instructions implement the steps of the beam pointing method embodiment described above when executed by the processor 801, and achieve the same technical effects. When the communication device 800 is a network side device, the program or the instruction, when executed by the processor 801, implements the steps of the above beam indication method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for configuring a first beam for carrying out sidelink communication according to the first beam information, and the communication interface is used for receiving the first beam information from a second terminal. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 9 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 900 includes, but is not limited to: at least some of the components of the radio frequency unit 901, the network module 902, the audio output unit 903, the input unit 904, the sensor 905, the display unit 906, the user input unit 907, the interface unit 908, the memory 909, and the processor 910, etc.

Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 910 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 904 may include a graphics processing unit (Graphics Processing Unit, GPU) 9041 and a microphone 9042, with the graphics processor 9041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. Touch panel 9071, also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 901 may transmit the downlink data to the processor 910 for processing; in addition, the radio frequency unit 901 may send uplink data to the network side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 909 may be used to store software programs or instructions as well as various data. The memory 909 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 909 may include a volatile memory or a nonvolatile memory, or the memory 909 may include both volatile and nonvolatile memories. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 910.

The radio frequency unit 901 is configured to receive the first beam information from the second terminal.

A processor 910 is configured to configure a first beam for sidelink communication according to the first beam information.

Optionally, the first beam includes at least one of:

a target beam;

a target beam pair;

a target beam group.

Optionally, the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

a reference signal;

data information;

control information;

and synchronizing the signal blocks.

Optionally, the first time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

Optionally, the first beam information includes at least one of:

identification information of the beam indicating device;

identification information of the second terminal;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

A number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

the beam pointing device applies a target beam;

the beam pointing device applies a target beam pair;

the beam indicating device executes a beam scanning process;

the beam pointing apparatus performs a beam training process.

Optionally, the resource corresponding to the first beam is at least one of:

the beam indicates authorized resources of the device.

The embodiment of the application can carry out the sidelink communication based on the configured first wave beam so as to improve the signal strength and increase the coverage range.

Based on the above embodiment, further, the processor 910 is further configured to:

determining the first beam;

applying the first beam;

feeding back a confirmation message to the second terminal;

feeding back a non-acknowledgement message to the second terminal;

performing a beam training process;

performing a beam scanning process;

Optionally, the measurement result includes at least one of:

the first beam information with the highest priority;

the first beam information received the latest.

Optionally, the radio frequency unit 901 is further configured to perform sidelink communications based on the first beam.

Optionally, the radio frequency unit 901 is configured to:

Transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

a resource pool;

partial bandwidth;

and (3) a carrier wave.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining a first beam indicated by the first terminal and used for carrying out sidelink communication, the communication interface is used for sending first beam information to the first terminal, and the first beam information indicates the first beam for the first terminal. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 10 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 10 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (ProgrammableROM, PROM), an erasable programmable Read-only memory (ErasablePROM, EPROM), an electrically erasable programmable Read-only memory (ElectricallyEPROM, EEPROM), or a flash memory, among others. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1009 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

The radio frequency unit 1001 is configured to send first beam information to a first terminal, where the first beam information indicates the first beam for the first terminal.

A processor 1010 is configured to determine a first beam indicated for the first terminal for sidelink communication.

Optionally, the first beam includes at least one of:

a target beam;

a target beam pair;

a target beam group.

Optionally, the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

A reference signal;

data information;

control information;

and synchronizing the signal blocks.

Optionally, the second time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

Optionally, the first beam information includes at least one of:

identification information of the first terminal;

identification information of the beam indicating device;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

Resource pool information corresponding to the first beam;

a number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

the first terminal applies a target beam;

the first terminal applies a target beam pair;

the first terminal executes a beam scanning process;

and the first terminal executes a wave beam training process.

Optionally, the resource corresponding to the first beam is at least one of:

and authorizing resources of the first terminal.

Based on the above embodiments, the processor 1010 is optionally further configured to perform at least one of:

receiving a feedback acknowledgement message from the first terminal;

receiving a feedback unacknowledged message from the first terminal;

performing a beam training process;

performing a beam scanning process;

Optionally, the measurement result includes at least one of:

Optionally, the radio frequency unit 1001 is further configured to:

Optionally, the radio frequency unit 1001 is configured to perform at least one of:

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

a resource pool;

partial bandwidth;

and (3) a carrier wave.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the processes of the embodiment of the beam indication method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is configured to run a program or an instruction, implement each process of the above beam indication method embodiment, and achieve the same technical effect, so as to avoid repetition, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above beam pointing method embodiment, and achieve the same technical effects, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a beam indicating system, which comprises: a first terminal operable to perform the steps of the beam pointing method as described above, and a second terminal operable to perform the steps of the beam pointing method as described above.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of beam pointing comprising:

2. The method of claim 1, wherein the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

3. The method of claim 1, wherein the first beam is used to transmit at least one of the following information:

a reference signal;

data information;

control information;

And synchronizing the signal blocks.

4. The method of claim 1, wherein the time at which the first terminal communicates with the second terminal in accordance with the first beam is after a first time interval after receiving the first beam information.

5. The method of claim 4, wherein the first time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

6. The method of claim 1, wherein the first beam information comprises at least one of:

identification information of the first terminal;

identification information of the second terminal;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

Time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

a number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

7. The method of claim 6, wherein the first indication information is used to indicate at least one of:

the first terminal applies a target beam;

the first terminal applies a target beam pair;

the first terminal executes a beam scanning process;

and the first terminal executes a wave beam training process.

8. The method of claim 6, wherein the resources corresponding to the first beam are at least one of:

And authorizing resources of the first terminal.

9. The method of claim 6, wherein the second indication information is used to instruct the first terminal to apply the first beam until new first beam information is received.

10. The method of claim 1, wherein after the first terminal receives the first beam information from the second terminal, the method further comprises:

the first terminal determines the first beam;

the first terminal applies the first beam;

the first terminal feeds back a confirmation message to the second terminal;

the first terminal feeds back a non-acknowledgement message to the second terminal;

the first terminal executes a beam training process;

the first terminal executes a beam scanning process;

and the first terminal sends the measurement result obtained in the beam scanning process to the second terminal.

11. The method of claim 10, wherein the measurement comprises at least one of:

12. The method of claim 10, wherein in the case where the first terminal receives M pieces of first beam information, where M is a positive integer greater than 1, the first terminal determines a first beam for sidelink communication with the second terminal according to at least one of:

the first beam information with the highest priority;

the first beam information received the latest.

13. The method of claim 1, wherein after the first terminal receives the first beam information from the second terminal, the method further comprises:

the first terminal performs sidelink communication based on the first beam.

14. The method of claim 13, wherein the sidelink communication based on the first beam comprises at least one of:

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

performing sidelink communication based on the first wave beam on a hybrid automatic repeat request process of the first terminal;

15. The method of claim 1, wherein the first beam comprises at least one of:

a target beam;

a target beam pair;

a target beam cluster;

a target beam group.

16. The method of claim 1, wherein the first beam information and the information transmitted using the first beam are located on the same or different resources, the resources comprising at least one of:

a resource pool;

partial bandwidth;

and (3) a carrier wave.

17. A beam pointing apparatus, comprising:

18. A method of beam pointing comprising:

19. The method of claim 18, wherein the first beam information is carried by at least one of:

first link control information;

second section sidelink control information;

a medium access control unit;

a sidelink radio resource control message;

a reference signal;

scrambling codes.

20. The method of claim 18, wherein the first beam is used to transmit at least one of the following information:

a reference signal;

data information;

control information;

and synchronizing the signal blocks.

21. The method of claim 18, wherein the first beam information is transmitted a time before a second time interval before a time at which the first beam is applied for sidelink communication with the first terminal.

22. The method of claim 21, wherein the second time interval is determined by at least one of:

processing time of the first section of secondary link control information;

processing time of the second section of auxiliary link control information;

a sidelink radio resource control message;

processing time of the media access control unit;

beam training time;

beam adjustment or switching time;

beam scanning time;

Data packet preparation time;

feedback preparation time of the hybrid automatic repeat request;

feedback processing time of the hybrid automatic repeat request.

23. The method of claim 18, wherein the first beam information comprises at least one of:

identification information of the first terminal;

identification information of the second terminal;

identification information of the first beam;

quasi co-location identification information;

transmitting a configuration indication state;

identification information of the reference signal;

time domain information corresponding to the first beam;

resource pool information corresponding to the first beam;

a number N of transport blocks corresponding to the first beam;

a transmission resource number R corresponding to the first beam;

a length of time corresponding to the first beam;

resources corresponding to the first beam;

24. The method of claim 23, wherein the first indication information is used to indicate at least one of:

the first terminal applies a target beam;

The first terminal applies a target beam pair;

the first terminal executes a beam scanning process;

and the first terminal executes a wave beam training process.

25. The method of claim 23, wherein the resources corresponding to the first beam are at least one of:

and authorizing resources of the first terminal.

26. The method of claim 23, wherein the second indication information is used to instruct the first terminal to apply the first beam until new first beam information is received.

27. The method of claim 18, wherein after the second terminal transmits the first beam information to the first terminal, the method further comprises at least one of:

the second terminal receives a feedback confirmation message from the first terminal;

the second terminal receives a feedback unacknowledged message from the first terminal;

the second terminal executes a beam training process;

the second terminal executes a beam scanning process;

28. The method of claim 27, wherein the measurement comprises at least one of:

29. The method of claim 18, wherein after the second terminal transmits the first beam information to the first terminal, the method further comprises:

30. The method of claim 29, wherein the second terminal performing sidelink communication with the first terminal based on the first beam comprises at least one of:

transmitting N transmission blocks based on the first wave beam;

transmitting R transmission resources based on the first wave beam;

31. The method of claim 18, wherein the first beam comprises at least one of:

a target beam;

a target beam pair;

a target beam cluster;

a target beam group.

32. The method of claim 18, wherein the first beam information and the information transmitted using the first beam are located on the same or different resources, the resources comprising at least one of:

a resource pool;

partial bandwidth;

and (3) a carrier wave.

33. A beam pointing apparatus, comprising:

34. A first terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the beam pointing method of any one of claims 1 to 16.

35. A second terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the beam pointing method of any one of claims 18 to 32.

36. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implements the beam pointing method according to any of claims 1-16 or the steps of the beam pointing method according to any of claims 18-32.