CN116326136A - Communication method, device and storage medium based on side link - Google Patents

Abstract

The present disclosure relates to a side link-based communication method, device, and storage medium. The method is executed by a first device, and includes: determining a side link beam in response to the first device performing side link beam measurement based on reference signal resources. A side link beam measurement result; indicating the side link beam measurement result to a second device. In the communication method based on the side link provided in the present disclosure, in response to the side link beam measurement performed by the first device based on the reference signal resource, the side link beam measurement result is determined, and the side link beam measurement result is indicated to the second device, thereby The second device can select a beam for beam transmission based on the beam measurement result of the side link, so as to improve the performance of beam-based transmission of the side link.

Description

Communication method, device and storage medium based on side link

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a communication method, device and storage medium based on a sidelink (sidelink).

Background technique

In the new wireless technology (New Radio, NR), especially when the communication frequency band is in the second frequency band (frequency range2, FR2), due to the rapid attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and receive. In order to realize beam-based transmission, beam measurements are required. In NR, at least one of a synchronization signal block (Synchronization Signal Block, SSB) and a channel state information reference signal (channel state information reference signal, CSI-RS) is mainly used to perform beam measurement.

Among them, beam measurement based on sidelink communication is being studied.

Contents of the invention

In order to overcome the problems existing in related technologies, the present disclosure provides a communication method, device and storage medium based on side links.

According to the first aspect of an embodiment of the present disclosure, there is provided a communication method based on a side link, the method is executed by a first device, and the method includes: responding to the first device performing a side link based on a reference signal resource Beam measurements, determining sidelink beam measurements; indicating the sidelink beam measurements to a second device.

According to the second aspect of the embodiments of the present disclosure, there is provided a communication method based on a side link, the method is executed by a second device, and the second device is a network device, and the method includes: receiving the information indicated by the first device Sidelink beam measurement results.

According to a third aspect of the embodiments of the present disclosure, there is provided a communication method based on a side link, the method is executed by a second device, the second device is a terminal device, and the method includes: receiving the information indicated by the first device Sidelink beam measurement results.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a communication device based on a side link, which is applied to a first device, and the device includes:

A determining module, configured to determine a side link beam measurement result in response to the side link beam measurement performed by the first device based on the reference signal resource;

A sending module, configured to indicate the side link beam measurement result to the second device.

According to a fifth aspect of an embodiment of the present disclosure, there is provided a communication device based on a side link, which is applied to a second device, where the second device is a network device, and the device includes:

The receiving module is configured to receive the side link beam measurement result indicated by the first device.

According to a sixth aspect of an embodiment of the present disclosure, there is provided a communication apparatus based on a side link, which is applied to a second device, where the second device is a terminal device, and the apparatus includes:

The receiving module is configured to receive the side link beam measurement result indicated by the first device.

According to a fifth aspect of an embodiment of the present disclosure, there is provided a communication device based on a side link, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the above-mentioned first The method described in one aspect and any one of its embodiments.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a communication device based on a side link, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the above-mentioned first The method described in the second aspect and any one of the implementation manners thereof.

According to a seventh aspect of the embodiments of the present disclosure, there is provided a communication device based on a side link, including: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: execute the above-mentioned first The method described in the three aspects and any one of the implementation manners thereof.

According to an eighth aspect of the embodiments of the present disclosure, there is provided a storage medium, the storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the first device, the first device can execute the above-mentioned The method described in the first aspect and any one of its implementation manners.

According to a ninth aspect of the embodiments of the present disclosure, there is provided a storage medium, the storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the network device, the network device can execute the above-mentioned second aspect and the method described in any one of its embodiments.

According to a tenth aspect of the embodiments of the present disclosure, there is provided a storage medium, the storage medium stores instructions, and when the instructions in the storage medium are executed by the processor of the terminal device, the terminal device can execute the above-mentioned third aspect and the method described in any one of its embodiments.

The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: in response to the first device performing side link beam measurement based on reference signal resources, determine the side link beam measurement result, and indicate the side link beam measurement to the second device As a result, the second device can select a beam for beam transmission based on the side link beam measurement result, and improve the performance of the side link based beam transmission.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.

Fig. 2 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 3 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 4 is a flow chart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 5 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 6 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 7 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 8 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 9 is a flowchart showing a communication method based on a side link according to an exemplary embodiment.

Fig. 10 is a block diagram of a communication device based on a side link according to an exemplary embodiment.

Fig. 11 is a block diagram of a communication device based on a side link according to an exemplary embodiment.

Fig. 12 is a block diagram of a communication device based on a side link according to an exemplary embodiment.

Fig. 13 is a block diagram of a communication device based on a side link according to an exemplary embodiment.

Fig. 14 is a block diagram of a communication device based on a side link according to an exemplary embodiment.

Detailed ways

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure.

The sidelink-based communication method provided by the embodiments of the present disclosure may be applied to the wireless communication system shown in FIG. 1 . Referring to Fig. 1, the wireless communication system includes a terminal and a network device. The terminal is connected to the network equipment through wireless resources, and performs data transmission. Wherein, sidelink communication can also be performed between terminals based on the PC5 interface.

It can be understood that the wireless communication system shown in FIG. 1 is only for schematic illustration, and the wireless communication system may also include other network devices, such as core network devices, wireless relay devices, and wireless backhaul devices, etc. Not shown in Figure 1. The embodiment of the present disclosure does not limit the number of network devices and terminals included in the wireless communication system.

It can be further understood that the wireless communication system in the embodiment of the present disclosure is a network that provides a wireless communication function. The wireless communication system may adopt different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), Frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency-division multiple access (single Carrier FDMA, SC-FDMA), carrier sense multiple access Access/Conflict Avoidance (Carrier Sense Multiple Access with Collision Avoidance). According to the capacity, speed, delay and other factors of different networks, the network can be divided into 2G (English: generation) network, 3G network, 4G network or future evolution network, such as 5G network, 5G network can also be called a new wireless network ( New Radio, NR). For convenience of description, the present disclosure sometimes simply refers to a wireless communication network as a network.

Further, the network equipment involved in this disclosure may also be referred to as radio access network equipment. The wireless access network device may be: a base station, an evolved base station (evolved node B, base station), a home base station, an access point (access point, AP) in a wireless fidelity (wirelessfidelity, WIFI) system, and a wireless relay node , a wireless backhaul node, a transmission point (transmission point, TP) or a transmission and reception point (transmission and reception point, TRP), etc., can also be a gNB in an NR system, or it can also be a component or a part of equipment constituting a base station, etc. . It should be understood that in the embodiments of the present disclosure, no limitation is imposed on the specific technology and specific device form adopted by the network device. In the present disclosure, a network device can provide communication coverage for a specific geographic area, and can communicate with terminals located in the coverage area (cell). In addition, when it is a vehicle-to-everything (V2X) communication system, the network device may also be a vehicle-mounted device.

Further, the terminals involved in this disclosure may also be referred to as terminal equipment, user equipment (User Equipment, UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal, MT), etc. Devices with voice and/or data connectivity, for example, the terminal may be a handheld device, a vehicle-mounted device, etc. with a wireless connection function. Currently, examples of some terminals are: Smartphone (Mobile Phone), Customer Premise Equipment (CPE), Pocket Personal Computer (PPC), PDA, Personal Digital Assistant (PDA) , laptops, tablets, wearable devices, or vehicle-mounted devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device may also be a vehicle-mounted device. It should be understood that the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the terminal.

In the new wireless technology (New Radio, NR), especially when the communication frequency band is in the second frequency band (frequency range2, FR2), due to the rapid attenuation of high-frequency channels, in order to ensure coverage, it is necessary to use beam-based transmission and receive. In order to realize beam-based transmission, beam measurements are required. In NR, at least one of SSB and CSI-RS is mainly used for beam measurement.

Among them, the beam (beam) can also be called spatial relation information (spatial relation information), spatial setting (spatial setting), spatial receiving parameter (Spatial Rx parameter), transmitting spatial filter (Txspatial filter), spatial receiving filter ( spatial domain receive filters), transmission configuration indication (transmission configuration indication, TCI) status, quasi co-location (quasi co location, QCL) type D, etc.

Currently, beam measurement based on sidelink communication is being studied. The resource configuration and sending method of the CSI-RS based on the beam measurement of the sidelink communication has been given in the related art, but how to report the beam measurement result based on the sidelink communication is still a problem to be solved.

Based on this, an embodiment of the present disclosure provides a sidelink-based communication method. When a terminal device performing sidelink communication performs sidelink beam measurement based on reference signal resources, it determines the sidelink beam measurement result, and sends the result to the network device or other sidelink communication The terminal device indicates the measurement result of the sidelink beam, so that the beam can be selected for beam transmission based on the sidelink beam measurement result, and the performance of sidelink based beam transmission can be improved.

In the embodiments of the present disclosure, for the convenience of description, the terminal device that determines the measurement result of the sidelink beam and indicates the measurement result of the sidelink beam is referred to as the first device. The terminal device or network device that determines the sidelink beam measurement result based on the indication of the first device is called the second device.

Fig. 2 is a flowchart showing a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 2 , the sidelink-based communication method is executed by a first device, and includes the following steps.

In step S21, in response to the sidelink beam measurement performed by the first device based on the reference signal resource, a sidelink beam measurement result is determined.

Wherein, the reference signal resource includes a sidelink synchronization signal and a physical broadcast channel block identification (sidelink-synchronization signal/physical broadcast channel block, S-SS/PSBCH Block) resource and/or a sidelink channel state information reference signal (sidelink channel state information reference signal, sidelink CSI-RS) resource, the reference signal includes S-SS/PSBCH Block and/or sidelink CSI-RS. The reference signal resource is configured by the second device for the first device, the second device may be a network device and/or a second terminal device, and the first device is the first terminal device.

In one embodiment, the network device and/or the second terminal device in the sidelink configure a reference signal resource set for beam measurement, and the first device measures the reference signal resources in the reference signal resource set to determine the beam measurement result.

In step S22, the sidelink beam measurement result is indicated to the second device.

In an implementation manner, the first device explicitly sends the sidelink beam measurement result to the second device.

In another implementation manner, the first device implicitly indicates the sidelink beam measurement result to the second device.

In the embodiment of the present disclosure, when the first device performs sidelink beam measurement based on the reference signal resource, the sidelink beam measurement result is determined, and the sidelink beam measurement result is indicated to the second device, so that the second device can select Beam performs beam transmission to improve the performance of sidelink based on beam transmission.

In a sidelink-based communication method provided by an embodiment of the present disclosure, after the first device performs sidelink beam measurement based on reference signal resources, it may feed back the sidelink beam measurement result to the network device. At this time, the first device is a first terminal device, and the second device is a network device. That is, the first terminal device indicates the sidelink beam measurement result to the network device.

In a sidelink-based communication method provided by an embodiment of the present disclosure, the first device can be based on channel state information of a physical uplink control channel (physical uplink control channel, PUCCH) or a physical uplink shared channel (physical uplink shared channel, PUSCH) The CSI feedback mechanism sends sidelink beam measurement results to the second device. As shown in Figure 3, the following steps are included:

In step S31, in response to the sidelink beam measurement performed by the first terminal device based on the reference signal resource, a sidelink beam measurement result is determined.

In step S32, the sidelink beam measurement result is sent to the network device based on the PUCCH or PUSCH CSI feedback mechanism.

In the embodiment of the present disclosure, in traditional NR, the beam measurement result performed by the terminal is fed back to the network device based on the CSI feedback mechanism. Therefore, in the sidelink-based communication method proposed by the embodiment of the present disclosure, when the first device indicates the sidelink beam measurement result to the network device, the beam measurement result may be sent to the network device by multiplexing the CSI feedback mechanism. That is, the first device in the sidelink sends the sidelink beam measurement result to the network device based on the PUCCH or PUSCH CSI feedback mechanism.

In a sidelink-based communication method provided by an embodiment of the present disclosure, after performing sidelink beam measurement based on reference signal resources, the first device may feed back the sidelink beam measurement result to the second terminal device. At this time, the first device is a first terminal device, and the second device is a second terminal device. That is, the first terminal device sends the beam measurement result to the second terminal device.

In a sidelink-based communication method provided in an embodiment of the present disclosure, the first device can pass through the PC5 interface between the first terminal device and the second terminal device based on (Radio Resource Control, RRC) signaling, Either based on a physical sidelink shared channel (Physical Sidelink Share Channel, PSSCH), or based on a physical sidelink control channel (Physical Sidelink Control Channel, PSCCH), or based on a physical sidelink feedback channel (Physical Sidelink Feedback Channel, PSFCH), indicate to the second device The sidelink beam measurement results. As shown in Figure 4, the following steps are included:

In step S41, in response to the sidelink beam measurement performed by the first terminal device based on the reference signal resource, a sidelink beam measurement result is determined.

In step S42, the sidelink beam measurement result is sent to the network device through the PC5 interface between the first terminal device and the second terminal device, or PSSCH, or PSCCH, or PSFCH based on RRC signaling.

In a sidelink-based communication method provided by an embodiment of the present disclosure, the first device may send the second terminal device to the second terminal device through the PC5 interface between the first terminal device and the second terminal device based on RRC The device sends the sidelink beam measurement result.

In a sidelink-based communication method provided in an embodiment of the present disclosure, the first device may also send the sidelink beam measurement result to the second device through the PSSCH. At this time, the beam measurement result may be carried in a Medium Access Control Control Element (Medium Access Control Control Element, MAC CE) used to indicate sidelink channel state information reporting. This is because the sidelink CSI feedback mechanism uses SL CSI reporting MAC CE to include feedback content, then the beam measurement results in sidelink can also be fed back by enhancing SL CSI reporting MACCE, or designing a new SL MAC CE for Includes beam measurement results.

In an implementation manner, in the embodiment of the present disclosure, the information field of the SL CSI reporting MAC CE may be enhanced, and the enhanced information field will be referred to as the first information field for the convenience of description later. That is, the SL CSI reporting MACCE may include the first information field.

The SL CSI reporting MAC CE can be implemented in the following way: In one embodiment, the first information field is used to indicate whether the MAC-CE includes CSI and whether the MAC-CE includes beam measurement results. In another implementation manner, the first information field is used to indicate that the MAC-CE includes CSI or beam measurement results. In yet another implementation manner, the first information field is used to indicate a beam measurement result. In the embodiment of the present disclosure, a new SL MAC CE may also be designed to indicate the beam measurement result of the sidelink. In the embodiment of the present disclosure, if a new SL MAC CE is used to indicate the beam measurement result of the sidelink, the new MAC CE may be used to indicate the beam measurement result without indicating whether the MAC CE includes the beam measurement result. That is, the SL MAC CE used to include the sidelink beam measurement result and the SL MAC CE used to include CSI reporting are different MAC CEs.

In a sidelink-based communication method provided in an embodiment of the present disclosure, the first device may also indicate the sidelink beam measurement result to the second device based on the PSFCH. At this time, the beam measurement result may be based on an implicit indication of the PSFCH carrying the feedback of the Hybrid Automatic Repeat reQuest (HARQ) of the PSSCH. Wherein, there is a corresponding relationship between PSFCH and PSSCH, and there is a corresponding relationship between PSSCH and reference signal resources. Wherein, the corresponding relationship between PSSCH and reference signal resources refers to at least one of the following: PSSCH and reference signal resources are sent in the same time slot; and the PSSCH and reference signal resources are transmitted in a (Time Division Multiplexing, TDM) manner, that is, transmitted on different symbols.

It can be understood that, in the embodiment of the present disclosure, based on the manner in which the PSFCH carrying the HARQ feedback of the PSSCH implicitly indicates the beam measurement result, the beam corresponding to the reference signal resource can be indicated, but the beam quality is not indicated.

In the embodiment of the present disclosure, the PSFCH implicit indication beam measurement result based on the HARQ feedback carrying the PSSCH may be that if the reference signals in each reference signal resource have a corresponding relationship with the PSSCH, and the PSFCH resources corresponding to each PSSCH are different, then it may be The HARQ correct acknowledgment (ACKnowledge, ACK)/error acknowledgment (Negative ACKnowledge, NACK) feedback corresponding to the PSSCH is sent on the PSFCH of the PSSCH corresponding to the reference signal resource corresponding to the selected beam, which implicitly indicates which reference signal resource is selected the corresponding beam.

For example, the first PSSCH has a corresponding relationship with the first reference signal resource, the second PSSCH has a corresponding relationship with the second reference signal resource, the first reference signal resource and the second reference signal resource correspond to different beam directions, and the first PSSCH and the second reference signal resource have a corresponding relationship. The data transmitted by the two PSSCHs may be the same or different (tend to be the same). And the first PSSCH corresponds to the first PSFCH, and the second PSSCH corresponds to the second PSFCH. If the terminal measures the beam measurement quality on the first reference signal resource to be good, it chooses to feed back the HARQ ACK/NACK of the first PSSCH on the first PSFCH, which implicitly informs the second device that the terminal has selected the first reference signal resource. The beam corresponding to the signal resource. The corresponding relationship between PSSCH and reference signal resources may include at least one of the following: PSSCH and reference signal resources are sent in the same time slot, PSSCH and reference signal resources are sent in FDM mode, and PSSCH and reference signal resources are sent in TDM mode .

In the embodiment of the present disclosure, the beam measurement result includes at least one of the following sequence number a to sequence number b:

a. At least one reference signal resource identifier;

b. Beam measurement quality corresponding to at least one reference signal resource.

In the embodiment of the present disclosure, the reference signal resource identifier includes at least one of the following serial numbers a to serial numbers d:

a. sidelink CSI-RS resource identifier;

b.S-SS/PSBCH Block identification;

c. The time slot identifier corresponding to the reference signal resource;

d. The mini-slot identifier corresponding to the reference signal resource.

Wherein, it can be understood that if there is no reference signal resource identifier, but there is a time slot identifier or mini-slot identifier corresponding to the reference signal resource, then the time slot identifier or mini-slot identifier corresponding to the reference signal resource is used. A mini-slot is a mini-slot. The mini-slot is relative to the slot as the time unit. When scheduling with slot as the time unit, the minimum number of symbols occupied is 3; the number of symbols occupied by mini-slot can be 1 or 2. And a slot can contain time units of multiple scheduled mini-slots. A mini-slot can also occupy the symbols of two adjacent slots.

In this embodiment of the disclosure, the reference signal resource identifier also includes the PSSCH identifier corresponding to the reference signal resource, that is, the identifier of the PSSCH corresponding to the reference signal resource. The PSSCH identifier may include the PSFCH identifier corresponding to the PSSCH and/or the PSSCH corresponding to the PSSCH identifier. The HARQ process number (processing number). The PSSCH corresponding to the reference signal resource includes at least one of the following: the corresponding relationship between the PSSCH and the reference signal resource includes at least one of the following: the PSSCH and the reference signal resource are sent in the same time slot, and the PSSCH and the reference signal resource are FDM TDM transmission, and PSSCH and reference signal resources are TDM transmission.

In the embodiment of the present disclosure, the beam measurement quality of the reference signal includes at least one of the following sequence number a to sequence number e:

a. Reference Signal Received Power (L1-RSRP) of Layer 1;

b. Signal-to-Interference-plus-Noise Ratio (L1-SINR) of Layer 1;

c. Layer 3 reference signal received power (L3-RSRP);

d. Layer 3 Reference Signal Received Quality (L3-RSRQ);

e. Signal-to-Interference-plus-Noise Ratio (L3-SINR) for layer three.

Fig. 5 is a flow chart showing a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 5, the method is executed by a first device, and includes the following steps.

In step S51, a beam measurement request sent by the second device is received.

In step S52, in response to the sidelink beam measurement performed by the first device based on the reference signal resource, a sidelink beam measurement result is determined.

In step S53, the sidelink beam measurement result is indicated to the second device.

In this embodiment of the present disclosure, the sidelink beam measurement performed by the first device based on the reference signal resource may be performed based on a beam measurement request sent by the second device.

In the embodiment of the present disclosure, the beam measurement request may be carried in sidelink control information (Sidelink Control Information, SCI). Alternatively, the beam measurement request may be carried in downlink control information (Downlink Control Information, DCI). Wherein, when the beam measurement request is carried in the DCI, the network device sends the beam measurement request.

In the embodiment of the present disclosure, the SCI includes side link control information 2A (SCI 2-A) or side link control information 2C (SCI2-C).

Among them, SCI 2-A refers to the traditional SCI used to decode PSSCH, including HARQ information of PSSCH, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator (New data indicator);

c. Redundancy version (Redundancy version, RV);

d. Source ID (Source ID);

e. Destination ID;

f. HARQ feedback enable/disable indication (feedback enabled/disabled indicator);

g. Communication type indication (Cast type indicator);

h. CSI request (request).

SCI 2-C refers to the SCI used to decode PSSCH and provide inter-device (inter-UE) cooperation-related information, and may also include at least one of the following sequence number a to sequence number m:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. CSI request;

h. Providing/Requesting indicator;

i. First resource location (First resource location);

j. Reference slot location (Reference slot location);

k. Resource set type (Resource set type);

l. Lowest subChannel indices;

m. Padding bits.

In this embodiment of the present disclosure, the SCI may include a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request. Further, the SCI includes side link control information 1A (SCI 1-A) or side link control information 2B (SCI 2-B) or other SCIs. Among them, SCI 1-A refers to the SCI used for PSSCH scheduling and second-stage SCI scheduling, and may also include at least one of the following sequence numbers a to sequence number m:

a. Priority (Priority);

b. Time resource assignment (Time resource assignment);

c. Demodulation Reference Symbol (Demodulation Reference Symbol, DMRS) mode (pattern);

d. The second stage SCI format (2nd-stage SCI format);

e. Beta offset indicator (Beta_offset indicator);

f. DMRS port (port) quantity;

g. Modulation and coding scheme (MCS);

h. Additional MCS table indicator (Additional MCS table indicator);

i. PSFCH signaling overhead indication (overhead indication);

j. Reserved bit (Reserved);

k. Conflict information receiver flag;

l. Higher layer parameter indication (higher layer parameter indication);

m. Other (otherwise).

Further, SCI 1-A or SCI 2-B or other SCIs include a third information field for indicating a beam measurement request. Among them, SCI 2-B refers to the SCI used to decode the PSSCH when the HARQ-ACK of the HARQ operation only includes NACK, or does not include HARQ-ACK information, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. Zone ID (Zone ID);

h. Communication range requirement.

In the embodiment of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests, which are different from existing SCIs, that is, different from SCI 1-A, SCI 2-A, SCI 2-B, and SCI 2-C Other new SCIs.

Based on the same idea, the embodiment of the present disclosure further provides a sidelink communication method applied to the second device.

Fig. 6 is a flowchart of a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 6, the sidelink-based communication method is executed by a second device, the second device is a network device, and the method includes the following step.

In step S61, the sidelink beam measurement result indicated by the first device is received.

Wherein, the first device is a first terminal device.

In the embodiment of the present disclosure, the second device receives the sidelink beam measurement result indicated by the first device, so that the second device can select a beam for beam transmission based on the sidelink beam measurement result, and improve the performance of sidelink beam-based transmission.

In a sidelink-based communication method provided by an embodiment of the present disclosure, the first device can send a sidelink beam measurement result to the second device based on a PUCCH or PUSCH channel state information CSI feedback mechanism.

In the embodiment of the present disclosure, in traditional NR, the beam measurement result performed by the terminal is fed back to the network device based on the CSI feedback mechanism. Therefore, in the sidelink-based communication method proposed by the embodiment of the present disclosure, when the first device indicates the sidelink beam measurement result to the network device, the beam measurement result may be sent to the network device by multiplexing the CSI feedback mechanism. That is, the second device in the sidelink receives the sidelink beam measurement result sent by the first device based on the PUCCH or PUSCH CSI feedback mechanism.

In the embodiment of the present disclosure, the beam measurement result includes at least one of the following sequence number a to sequence number b:

a. At least one reference signal resource identifier;

b. Beam measurement quality of at least one reference signal.

Wherein, the reference signal resources include S-SS/PSBCH Block resources and/or sidelink CSI-RS resources, and the reference signals include S-SS/PSBCH Block and/or sidelink CSI-RS resources. The reference signal resources are configured by the network device or the second terminal device for the first device.

In one embodiment, the network device in the sidelink configures a reference signal resource set for beam measurement, so that the first device can measure the reference signal resources in the reference signal resource set and determine the beam measurement result.

In the embodiment of the present disclosure, the reference signal resource identifier includes at least one of the following serial numbers a to serial numbers d:

a. sidelink channel state information reference signal CSI-RS resource identifier;

b. sidelink synchronization signal SS and physical broadcast channel PBCH block identification;

c. A time slot identifier corresponding to the reference signal resource;

d. A mini-slot identifier corresponding to the reference signal resource.

Wherein, it can be understood that if there is no reference signal resource identifier, but there is a time slot identifier or mini-slot identifier corresponding to the reference signal resource, then the time slot identifier or mini-slot identifier corresponding to the reference signal resource is used. A mini-slot is a mini-slot. The mini-slot is relative to the slot as the time unit. When scheduling with slot as the time unit, the minimum number of symbols occupied is 3; the number of symbols occupied by mini-slot can be 1 or 2. And a slot can contain time units of multiple scheduled mini-slots. A mini-slot can also occupy the symbols of two adjacent slots.

In this embodiment of the disclosure, the reference signal resource identifier also includes the PSSCH identifier corresponding to the reference signal resource, that is, the identifier of the PSSCH corresponding to the reference signal resource. The PSSCH identifier may include the PSFCH identifier corresponding to the PSSCH and/or the PSSCH corresponding to the PSSCH identifier. The HARQ processing number. The corresponding relationship between PSSCH and reference signal resources includes at least one of the following: PSSCH and reference signal resources are sent in the same time slot, PSSCH and reference signal resources are sent in FDM mode, and PSSCH and reference signal resources are sent in TDM mode.

In the embodiment of the present disclosure, the beam measurement quality of the reference signal includes at least one of the following sequence number a to sequence number e:

a. L1-RSRP;

b. L1-SINR;

c. L3-RSRP;

d. L3-RSRQ

e. L3-SINR.

Fig. 7 is a flowchart of a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 7, the method is executed by a second device, and includes the following steps.

In step S71, a beam measurement request is sent to the first device.

In step S72, the sidelink beam measurement result indicated by the first device is received.

In the embodiment of the present disclosure, the beam measurement request may be carried in the sidelink SCI. Alternatively, the beam measurement request can be carried in DCI.

In the embodiment of the present disclosure, the SCI includes sidelink control information 2A (SCI 2-A) or sidelink control information 2C (SCI 2-C). Among them, SCI 2-A refers to the traditional SCI used to decode PSSCH, including HARQ information of PSSCH, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. Cast type indicator;

h. CSI request.

SCI 2-C refers to the SCI used to decode PSSCH and provide information related to inter-UE cooperation, and may also include at least one of the following sequence numbers a to sequence number m:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. CSI request;

h.Providing/Requesting indicator;

i. First resource location;

j. Reference slot location;

k. Resource set type;

l.Lowest subChannel indices;

m. Padding bits.

In this embodiment of the present disclosure, the SCI may include a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request. Further, the SCI includes sidelink control information 1A (SCI 1-A) or sidelink control information 2B (SCI 2-B) or other SCIs. Among them, SCI 1-A refers to the SCI used for PSSCH scheduling and second-stage SCI scheduling, and may also include at least one of the following sequence numbers a to sequence number m:

a.Priority;

b. Time resource assignment;

c. DMRS pattern;

d. 2nd-stage SCI format;

e. Beta_offset indicator;

f. The number of DMRS ports;

g. Modulation and coding strategy (MCS);

h. Additional MCS table indicator;

i. PSFCH overhead indication;

j. Reserved;

k. Conflict information receiver flag;

l.higher layer parameter indication;

m. otherwise.

In the embodiment of the present disclosure, the SCI may include sidelink control information 1A or sidelink control information 2B or other SCIs.

Further, SCI 1-A or SCI 2-B or other SCIs include a third information field for indicating the beam measurement request. Among them, SCI 2-B refers to the SCI used to decode the PSSCH when the HARQ-ACK of the HARQ operation only includes NACK, or does not include HARQ-ACK information, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. Zone ID;

h. Communication range requirement.

In the embodiment of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests, which are different from existing SCIs, that is, different from SCI 1-A, SCI 2-A, SCI 2-B, and SCI 2-C Other new SCIs.

Fig. 8 is a flow chart of a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 8, the sidelink-based communication method is executed by a second device, the second device is a terminal device, and includes the following steps.

In step S81, the sidelink beam measurement result indicated by the first device is received.

In the embodiment of the present disclosure, the second device receives the sidelink beam measurement result indicated by the first device, so that the second device can select a beam for beam transmission based on the sidelink beam measurement result, and improve the performance of sidelink based beam transmission. Wherein, the first device is a first terminal device, and the second device is a second terminal device.

In a sidelink-based communication method provided by an embodiment of the present disclosure, the first device can use the PC5 interface between the first terminal device and the second terminal device based on RRC signaling, or based on PSSCH, or based on The PSCCH, or based on the PSFCH, indicates the sidelink beam measurement result to the second device.

In a sidelink-based communication method provided by an embodiment of the present disclosure, the first device may send the second terminal device to the second terminal device through the PC5 interface between the first terminal device and the second terminal device based on RRC The device sends the sidelink beam measurement result.

In a sidelink-based communication method provided in an embodiment of the present disclosure, the first device may also send the sidelink beam measurement result to the second device through the PSSCH. At this time, the beam measurement result may be carried in the MAC CE used to indicate the sidelink channel state information report. This is because the sidelink CSI feedback mechanism uses SL CSIreporting MAC CE to include feedback content, then the beam measurement results in sidelink can also be fed back by enhancing SL CSIreporting MAC CE, or designing a new SL MAC CE to include Beam measurement results.

Enhancing the SL CSI reporting MAC CE can be implemented in the following manner: In one embodiment, the MAC CE can include a first information field, the first information field is used to indicate whether the MAC-CE contains CSI, and the MAC-CE Whether to include beam measurement results. In another implementation manner, the first information field is used to indicate that the MAC-CE includes CSI or beam measurement results. In yet another implementation manner, the first information field is used to indicate a beam measurement result. That is, the SL MAC CE used to include the sidelink beam measurement result and the SL MAC CE used to include CSI reporting are different MAC CEs.

In the embodiment of the present disclosure, if a new SL MAC CE is used to indicate the beam measurement result of the sidelink, the new MAC CE may be directly used to include the beam measurement result without instructing the MAC CE to include the beam measurement result. That is, the SL MAC CE used to include the sidelink beam measurement result and the SL MAC CE used to include CSI reporting are different MAC CEs.

In a sidelink-based communication method provided in an embodiment of the present disclosure, the first device may also indicate the sidelink beam measurement result to the second device based on the PSFCH. At this time, the beam measurement result may be based on the implicit indication of the PSFCH carrying the HARQ feedback of the PSSCH. Wherein, there is a corresponding relationship between PSFCH and PSSCH, and there is a corresponding relationship between PSSCH and reference signal resources. Wherein, the corresponding relationship between PSSCH and reference signal resources refers to at least one of the following: PSSCH and reference signal resources are sent in the same time slot; PSSCH and reference signal resources are sent in the same symbol (Frequency Division Multiplexing, FDM) mode ; and the PSSCH and reference signal resources are transmitted in TDM mode, that is, they are transmitted on different symbols.

Wherein, the reference signal resources include S-SS/PSBCH Block resources and/or sidelink CSI-RS resources, and the reference signals include S-SS/PSBCH Block and/or sidelink CSI-RS resources. The reference signal resources are configured by the network device or the second terminal device for the first device.

In one embodiment, the second terminal device in the sidelink configures a reference signal resource set for beam measurement, so that the first device can measure the reference signal resources in the reference signal resource set and determine the beam measurement result.

It can be understood that, in the embodiment of the present disclosure, based on the manner in which the PSFCH carrying the HARQ feedback of the PSSCH implicitly indicates the beam measurement result, the beam corresponding to the reference signal resource can be indicated, but the beam quality is not indicated.

In the embodiment of the present disclosure, the PSFCH implicit indication beam measurement result based on the HARQ feedback carrying the PSSCH may be that if the reference signals in each reference signal resource have a corresponding relationship with the PSSCH, and the PSFCH resources corresponding to each PSSCH are different, then it may be The HARQ ACK/NACK feedback corresponding to the PSSCH is sent on the PSFCH of the PSSCH corresponding to the reference signal resource corresponding to the selected beam, that is, implicitly indicates which beam corresponding to the reference signal resource is selected.

For example, the first PSSCH has a corresponding relationship with the first reference signal resource, the second PSSCH has a corresponding relationship with the second reference signal resource, the first reference signal resource and the second reference signal resource correspond to different beam directions, and the first PSSCH and the second reference signal resource have a corresponding relationship. The data transmitted by the two PSSCHs may be the same or different (tend to be the same). And the first PSSCH corresponds to the first PSFCH, and the second PSSCH corresponds to the second PSFCH. If the terminal measures the beam measurement quality on the first reference signal resource to be good, it chooses to feed back the HARQ ACK/NACK of the first PSSCH on the first PSFCH, which implicitly informs the second device that the terminal has selected the first reference signal resource. The beam corresponding to the signal resource. The corresponding relationship between PSSCH and reference signal resources may include at least one of the following: PSSCH and reference signal resources are sent in the same time slot, PSSCH and reference signal resources are sent in FDM mode, and PSSCH and reference signal resources are sent in TDM mode .

In the embodiment of the present disclosure, the beam measurement result includes at least one of the following sequence number a to sequence number b:

a. At least one reference signal resource identifier;

b. Beam measurement quality corresponding to at least one reference signal resource.

In the embodiment of the present disclosure, the reference signal resource identifier includes at least one of the following serial numbers a to serial numbers d:

a. sidelink channel state information reference signal CSI-RS resource identifier;

b. sidelink synchronization signal SS and physical broadcast channel PBCH block identification;

c. A time slot identifier corresponding to the reference signal resource;

d. A mini-slot identifier corresponding to the reference signal resource.

Wherein, it can be understood that if there is no reference signal resource identifier, but only a time slot identifier or a mini-slot identifier corresponding to the reference signal resource, then the time slot identifier or mini-slot identifier corresponding to the reference signal resource is used. A mini-slot is a mini-slot. The mini-slot is relative to the slot as the time unit. When scheduling with slot as the time unit, the minimum number of symbols occupied is 3; the number of symbols occupied by mini-slot can be 1 or 2. And a slot can contain time units of multiple scheduled mini-slots. A mini-slot can also occupy the symbols of two adjacent slots.

In this embodiment of the disclosure, the reference signal resource identifier also includes the PSSCH identifier corresponding to the reference signal resource, that is, the identifier of the PSSCH corresponding to the reference signal resource. The PSSCH identifier may include the PSFCH identifier corresponding to the PSSCH and/or the PSSCH corresponding to the PSSCH identifier. The HARQ processing number. The corresponding relationship between PSSCH and reference signal resources may include at least one of the following: PSSCH and reference signal resources are sent in the same time slot, PSSCH and reference signal resources are sent in FDM mode, and PSSCH and reference signal resources are sent in TDM mode .

In the embodiment of the present disclosure, the beam measurement quality of the reference signal includes at least one of the following sequence number a to sequence number e:

a. L1-RSRP;

b. L1-SINR;

c. L3-RSRP;

d. L3-RSRQ

e. L3-SINR.

Fig. 9 is a flow chart of a sidelink-based communication method according to an exemplary embodiment. As shown in Fig. 9, the method is executed by a second device, and includes the following steps:

In step S91, a beam measurement request is sent to the first device.

In step S92, the sidelink beam measurement result indicated by the first device is received.

In the embodiment of the present disclosure, the beam measurement request may be carried in the sidelink SCI. Alternatively, the beam measurement request can be carried in DCI.

In the embodiment of the present disclosure, the SCI includes sidelink control information 2A (SCI 2-A) or sidelink control information 2C (SCI 2-C).

Among them, (SCI 2-A) refers to the traditional SCI used to decode PSSCH and HARQ information including PSSCH, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. Cast type indicator;

h. CSI request.

SCI 2-C refers to the SCI used to decode PSSCH and provide information related to inter-UE cooperation, and may also include at least one of the following sequence numbers a to sequence number m:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. CSI request;

h.Providing/Requesting indicator;

i. First resource location;

j. Reference slot location;

k. Resource set type;

l.Lowest subChannel indices;

m. Padding bits.

In this embodiment of the present disclosure, the SCI may include a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request. Further, the SCI includes SCI 1-A or SCI 2-B or other SCIs. Among them, SCI 1-A refers to the SCI used for PSSCH scheduling and second-stage SCI scheduling, and may also include at least one of the following sequence numbers a to sequence number m:

a.Priority;

b. Time resource assignment;

c. DMRS pattern;

d. 2nd-stage SCI format;

e. Beta_offset indicator;

f. The number of DMRS ports;

g. Modulation and coding strategy (MCS);

h. Additional MCS table indicator;

i. PSFCH overhead indication;

j. Reserved;

k. Conflict information receiver flag;

l.higher layer parameter indication;

m. otherwise.

Further, SCI 1-A or SCI 2-B or other SCIs include a third information field for indicating the beam measurement request.

Among them, SCI 2-B refers to the SCI used to decode the PSSCH when the HARQ-ACK of the HARQ operation only includes NACK, or does not include HARQ-ACK information, and may also include at least one of the following sequence numbers a to sequence number h:

a.HARQ process number;

b. New data indicator;

c. Redundancy version (RV);

d. Source ID;

e. Destination ID;

f. HARQ feedback enabled/disabled indicator;

g. Zone ID;

h. Communication range requirement.

In the embodiments of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests. This SCI is different from the existing SCIs, that is, it is different from SCI 1-A, SCI 2-A, SCI 2-B and SCI 2- New SCI other than C.

It can be understood that the technical implementation involved in the sidelink-based communication process of the second device in the embodiment of the present disclosure can be applied to the sidelink-based communication process of the first device in the embodiment of the present disclosure, so for the second device For some technical implementation descriptions of the sidelink-based communication process that are not detailed enough, refer to relevant descriptions in the implementation process of the sidelink-based communication performed by the first device, which will not be repeated here.

It can be understood that the sidelink-based communication method provided by the embodiments of the present disclosure is applicable to a process in which the first device and the second device interact to implement sidelink-based communication. Wherein, the embodiment of the present disclosure does not describe in detail the process of implementing sidelink-based communication through interaction between the first device and the second device.

It should be noted that those skilled in the art can understand that the various implementation modes/embodiments mentioned above in the embodiments of the present disclosure can be used in conjunction with the foregoing embodiments, or can be used independently. Whether it is used alone or in combination with the foregoing embodiments, its implementation principles are similar. In the embodiments of the present disclosure, some embodiments are described in the manner of being used together. Of course, those skilled in the art can understand that such an illustration is not a limitation to the embodiments of the present disclosure.

Based on the same idea, the embodiment of the present disclosure also provides a communication device based on sidelink.

It can be understood that, in order to realize the above-mentioned functions, the sidelink-based communication device provided in the embodiments of the present disclosure includes corresponding hardware structures and/or software modules for performing various functions. Combining the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the technical solutions of the embodiments of the present disclosure.

Fig. 10 is a block diagram of a communication device based on a side link according to an exemplary embodiment. Referring to FIG. 10 , the device 100 includes a determining module 110 and a sending module 120 .

The determining module 110 is configured to determine a side link beam measurement result in response to the side link beam measurement performed by the first device based on the reference signal resource.

The sending module 120 is configured to indicate the side link beam measurement result to the second device.

In the embodiment of the present disclosure, the first device is a first terminal device, and the second device is a network device.

In the embodiment of the present disclosure, indicating the side link beam measurement result to the second device includes: sending the side link beam measurement result to the second device based on a PUCCH or PUSCH channel state information CSI feedback mechanism.

In the embodiment of the present disclosure, the first device is a first terminal device, and the second device is a second terminal device.

In the embodiment of the present disclosure, indicating the side link beam measurement result to the second device includes:

sending the side link beam measurement result to the second device through the PC5 interface between the first terminal device and the second terminal device based on RRC signaling; or

sending sidelink beam measurements to the second device based on the PSSCH; or

Sending sidelink beam measurements to the second device based on the PSCCH; or

Sidelink beam measurements are indicated to the second device based on the PSFCH.

In the embodiment of the present disclosure, in response to sending the side link beam measurement result to the second device based on the physical side link shared channel PSSCH, the beam measurement result is carried in the medium access control control for indicating the side link channel state information report Unit MAC CE.

In the embodiment of the present disclosure, the MAC-CE includes a first information field; the first information field is used to indicate whether the MAC-CE contains CSI, and whether the MAC-CE contains a beam measurement result; or

The first information field is used to indicate that the MAC-CE contains CSI or beam measurement results; or

The first information field is used to indicate the beam measurement result.

In the embodiment of the present disclosure, in response to the physical sidelink feedback channel PSFCH, indicate the sidelink beam measurement result to the second device, and the beam measurement result is based on the implicit indication of the PSFCH carrying the HARQ feedback of the PSSCH;

Wherein, there is a corresponding relationship between PSFCH and PSSCH, and there is a corresponding relationship between PSSCH and reference signal resources.

In the embodiment of the present disclosure, the beam measurement result includes at least one of the following:

at least one reference signal resource identifier;

Beam measurement quality of at least one reference signal.

In the embodiment of the present disclosure, the reference signal resource identifier includes at least one of the following:

Side link channel state information reference signal CSI-RS resource identifier;

Sidelink synchronization signal SS and physical broadcast channel PBCH block identification;

The time slot identifier corresponding to the reference signal resource;

The mini-slot identifier corresponding to the reference signal resource.

In the embodiment of the present disclosure, the reference signal resource identifier includes a PSSCH identifier corresponding to the reference signal resource, and the PSSCH identifier includes a PSFCH identifier corresponding to the PSSCH and/or a HARQ processing number corresponding to the PSSCH.

In the embodiment of the present disclosure, the beam measurement quality of the reference signal includes at least one of the following:

L1-RSRP;

L1-SINR;

L3-RSRP;

L3-RSRQ

L3-SINR.

In the embodiment of the present disclosure, the method further includes: receiving a beam measurement request sent by the second device.

In the embodiment of the present disclosure, the beam measurement request is carried in the side link control information SCI or the beam measurement request is carried in the downlink control information.

In the embodiment of the present disclosure, the SCI includes side link control information 2A or side link control information 2C.

In the embodiment of the present disclosure, the SCI includes a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request.

In the embodiment of the present disclosure, the SCI includes a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request.

In the embodiment of the present disclosure, the SCI includes the side link control information 1A or the side link control information 2B or other SCIs.

In the embodiment of the present disclosure, the side link control information 1A or the side link control information 2B or other SCI includes a third information field for indicating a beam measurement request.

In the embodiments of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests.

Fig. 11 is a block diagram of a communication device based on a side link according to an exemplary embodiment. Referring to FIG. 11 , the device 200 includes a first receiving module 210 .

The first receiving module 210 is configured to receive the side link beam measurement result indicated by the first device.

In the embodiment of the present disclosure, receiving the side link beam measurement result indicated by the first device includes: receiving the side link beam measurement result sent by the first device based on the PUCCH or PUSCH channel state information CSI feedback mechanism.

In the embodiment of the present disclosure, the beam measurement result includes at least one of the following:

at least one reference signal resource identifier;

Beam measurement quality of at least one reference signal.

In the embodiment of the present disclosure, the reference signal resource identifier includes at least one of the following:

Side link channel state information reference signal CSI-RS resource identifier;

Sidelink synchronization signal SS and physical broadcast channel PBCH block identification;

The time slot identifier corresponding to the reference signal resource;

The mini-slot identifier corresponding to the reference signal resource.

In the embodiment of the present disclosure, the reference signal resource identifier includes a PSSCH identifier corresponding to the reference signal resource, and the PSSCH identifier includes a PSFCH identifier corresponding to the PSSCH and/or a HARQ processing number corresponding to the PSSCH.

In the embodiment of the present disclosure, the beam measurement quality of the reference signal includes at least one of the following:

L1-RSRP;

L1-SINR;

L3-RSRP;

L3-RSRQ

L3-SINR.

In the embodiment of the present disclosure, the method further includes: sending a beam measurement request to the first device.

In the embodiment of the present disclosure, the beam measurement request is carried in the side link control information SCI or the beam measurement request is carried in the downlink control information.

In the embodiment of the present disclosure, the SCI includes side link control information 2A or side link control information 2C.

In the embodiment of the present disclosure, the SCI includes a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request.

In the embodiment of the present disclosure, the SCI includes the side link control information 1A or the side link control information 2B or other SCIs.

In the embodiment of the present disclosure, the side link control information 1A or the side link control information 2B or other SCI includes a third information field for indicating a beam measurement request.

In the embodiments of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests.

Fig. 12 is a block diagram of a communication device based on a side link according to an exemplary embodiment. Referring to FIG. 12 , the device 300 includes a second receiving module 310 .

The second receiving module 310 is configured to receive the side link beam measurement result indicated by the first device.

In an embodiment of the present disclosure, receiving the side link beam measurement result indicated by the first device includes:

Receive the side link beam measurement result sent by the first device through the PC5 interface between the first device and the terminal device based on radio resource control RRC signaling; or

Based on the PSSCH, receiving a sidelink beam measurement result sent by the first device; or

sending the sidelink beam measurement result to the second device based on the PSCCH; or

Receive the sidelink beam measurement result indicated by the first device through the PSFCH.

In the embodiment of the present disclosure, in response to receiving the side link beam measurement result sent by the first device based on the physical side link shared channel PSSCH, the beam measurement result is carried in the media access control for indicating the side link channel state information report In the control unit MAC CE.

In the embodiment of the present disclosure, the MAC-CE includes the first information field;

The first information field is used to indicate whether the MAC-CE contains CSI, and whether the MAC-CE contains beam measurement results; or

The first information field is used to indicate that the MAC-CE contains CSI or beam measurement results; or

The first information field is used to indicate the beam measurement result.

In the embodiment of the present disclosure, the beam measurement request is carried in the side link control information SCI or the beam measurement request is carried in the downlink control information.

In the embodiment of the present disclosure, the SCI includes side link control information 2A or side link control information 2C.

In the embodiment of the present disclosure, the SCI includes a second information field for indicating a beam measurement request, and different values of different bits in the second information field are used to indicate a CSI request and/or a beam measurement request.

In the embodiment of the present disclosure, the SCI includes the side link control information 1A or the side link control information 2B or other SCIs.

In the embodiment of the present disclosure, the side link control information 1A or the side link control information 2B or other SCI includes a third information field for indicating a beam measurement request.

In the embodiments of the present disclosure, other SCIs are SCIs used to indicate beam measurement requests.

Regarding the apparatus in the foregoing embodiments, the specific manner in which each module executes operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Fig. 13 is a block diagram of an apparatus 800 for communication based on a side link according to an exemplary embodiment. For example, the apparatus 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

13, apparatus 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816 .

The processing component 802 generally controls the overall operations of the device 800, such as those associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above method. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802 .

The memory 804 is configured to store various types of data to support operations at the device 800 . Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.

Power component 806 provides power to various components of device 800 . Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 800 .

The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the device 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a microphone (MIC) configured to receive external audio signals when the device 800 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 804 or sent via communication component 816 . In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.

Sensor assembly 814 includes one or more sensors for providing status assessments of various aspects of device 800 . For example, the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor component 814 can also detect a change in the position of the device 800 or a component of the device 800 , the presence or absence of user contact with the device 800 , the device 800 orientation or acceleration/deceleration and the temperature change of the device 800 . Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. Sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the apparatus 800 and other devices. The device 800 can access wireless networks based on communication standards, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, apparatus 800 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for performing the methods described above.

In an exemplary embodiment, there is also provided a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, which can be executed by the processor 820 of the device 800 to implement the above method. For example, the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Fig. 14 is a block diagram of an apparatus 1100 for communication based on a side link according to an exemplary embodiment. For example, the apparatus 1100 may be provided as a server. Referring to FIG. 14 , apparatus 1100 includes processing component 1122 , which further includes one or more processors, and a memory resource represented by memory 1132 for storing instructions executable by processing component 1122 , such as application programs. The application program stored in memory 1132 may include one or more modules each corresponding to a set of instructions. In addition, the processing component 1122 is configured to execute instructions to perform the above-mentioned communication method based on the side link

Device 1100 may also include a power component 1126 configured to perform power management of device 1100 , a wired or wireless network interface 1150 configured to connect device 1100 to a network, and an input-output (I/O) interface 1158 . The apparatus 1100 can operate based on an operating system stored in the memory 1132, such as Windows Server™, MacOS X™, Unix™, Linux™, FreeBSD™ or the like.

It can be further understood that "plurality" in the present disclosure refers to two or more, and other quantifiers are similar thereto. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural unless the context clearly dictates otherwise.

It can be further understood that the meanings of words such as "responsive" and "if" involved in the present disclosure depend on the context and actual usage scenarios, as the word "responsive" as used herein can be interpreted as "in response to" when" or "when" or "if" or "if".

It can be further understood that the terms "first", "second", etc. are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not imply a specific order or degree of importance. In fact, expressions such as "first" and "second" can be used interchangeably. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information.

It can be further understood that although operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring that these operations be performed in the specific order shown or in a serial order, or that Do all of the operations shown to get the desired result. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the present disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure .

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims (57)

1. A side link-based communication method, characterized in that the method is executed by the first device, and the method comprises: determining a sidelink beam measurement result in response to the first device taking a sidelink beam measurement based on a reference signal resource; Indicating the sidelink beam measurements to a second device. 2. The method according to claim 1, wherein the first device is a first terminal device, and the second device is a network device. 3. The method according to claim 2, wherein the indicating the side link beam measurement result to the second device comprises: Based on the channel state information CSI feedback mechanism of the physical uplink control channel PUCCH or the physical uplink shared channel PUSCH, the side link beam measurement result is sent to the second device. 4. The method according to claim 1, wherein the first device is a first terminal device, and the second device is a second terminal device. 5. The method according to claim 4, wherein the indicating the side link beam measurement result to the second device comprises: Sending the side link beam measurement result to the second device through the PC5 interface between the first terminal device and the second terminal device based on radio resource control RRC signaling; or sending the sidelink beam measurement to a second device based on the PSSCH; or Sending the sidelink beam measurement result to the second device based on a physical sidelink control channel PSCCH; or The sidelink beam measurement results are indicated to the second device based on a physical sidelink feedback channel PSFCH. 6. The method according to claim 5, wherein the side link beam measurement result is sent to the second device in response to a physical side link shared channel (PSSCH), and the beam measurement result is carried in an indication In the medium access control control element MAC CE of the channel state information report of the side link. 7. The method according to claim 6, wherein the MAC-CE includes a first information field; The first information field is used to indicate whether the MAC-CE contains CSI, and whether the MAC-CE contains beam measurement results; or The first information field is used to indicate that the MAC-CE contains CSI or beam measurement results; or The first information field is used to indicate a beam measurement result. 8. The method of claim 5, wherein the sidelink beam measurements are indicated to the second device in response to a PSFCH over a Physical Sidelink Feedback Channel, the beam measurements being based on a mix of bearer PSSCH PSFCH implicit indication of automatic repeat request HARQ feedback; Wherein, there is a corresponding relationship between the PSFCH and the PSSCH, and the corresponding relationship between the PSSCH and the reference signal resource. 9. The method according to any one of claims 1 to 8, wherein the beam measurement results include at least one of the following: at least one reference signal resource identifier; Beam measurement quality of at least one reference signal. 10. The method according to claim 9, wherein the reference signal resource identifier comprises at least one of the following: Side link channel state information reference signal CSI-RS resource identifier; Sidelink synchronization signal SS and physical broadcast channel PBCH block identification; A time slot identifier corresponding to the reference signal resource; The mini-slot identifier corresponding to the reference signal resource. 11. The method according to claim 9, wherein the reference signal resource identifier includes a PSSCH identifier corresponding to the reference signal resource, and the PSSCH identifier includes a PSFCH identifier corresponding to the PSSCH and/or a hybrid automatic repeat transmission corresponding to the PSSCH Request HARQ process number. 12. The method according to claim 9, wherein the beam measurement quality of the reference signal comprises at least one of the following: Layer 1 reference signal received power L1-RSRP; Signal-to-interference-plus-noise ratio L1-SINR of layer one; Layer 3 Reference Signal Received Power L3-RSRP; Layer 3 Reference Signal Received Quality L3-RSRQ Layer 3 signal to interference plus noise ratio L3-SINR. 13. The method of claim 1, further comprising: Receive a beam measurement request sent by the second device. 14. The method according to claim 13, wherein the beam measurement request is carried in side link control information (SCI) or the beam measurement request is carried in downlink control information. 15. The method according to claim 14, wherein the SCI comprises side link control information 2A or side link control information 2C. 16. The method according to claim 14 or 15, wherein the SCI includes a second information field for indicating the beam measurement request, and different values of different bits in the second information field are used to indicate the CSI request and/or the beam measurement request. 17. The method according to claim 14, wherein the SCI includes side link control information 1A or side link control information 2B or other SCIs. 18. The method according to claim 17, wherein the side link control information 1A or side link control information 2B or other SCI includes a third information field for indicating the beam measurement request. 19. The method according to claim 17, wherein the other SCI is an SCI used to indicate the beam measurement request. 20. A communication method based on a side link, wherein the method is executed by a second device, the second device is a network device, and the method comprises: A sidelink beam measurement result indicated by the first device is received. 21. The method according to claim 20, wherein the receiving the side link beam measurement result indicated by the first device comprises: The side link beam measurement result sent by the first device is received based on a channel state information CSI feedback mechanism of a physical uplink control channel PUCCH or a physical uplink shared channel PUSCH. 22. The method according to claim 20 or 21, wherein the beam measurement results include at least one of the following: at least one reference signal resource identifier; Beam measurement quality of at least one reference signal. 23. The method according to claim 22, wherein the reference signal resource identifier comprises at least one of the following: Side link channel state information reference signal CSI-RS resource identifier; Sidelink synchronization signal SS and physical broadcast channel PBCH block identification; A time slot identifier corresponding to the reference signal resource; The mini-slot identifier corresponding to the reference signal resource. 24. The method according to claim 22, wherein the reference signal resource identifier includes a PSSCH identifier corresponding to the reference signal resource, and the PSSCH identifier includes a PSFCH identifier corresponding to the PSSCH and/or a hybrid automatic repeat transmission corresponding to the PSSCH Request HARQ process number. 25. The method according to claim 22, wherein the beam measurement quality of the reference signal comprises at least one of the following: Layer 1 reference signal received power L1-RSRP; Signal-to-interference-plus-noise ratio L1-SINR of layer one; Layer 3 Reference Signal Received Power L3-RSRP; Layer 3 Reference Signal Received Quality L3-RSRQ Layer 3 signal to interference plus noise ratio L3-SINR. 26. The method of claim 20, further comprising: sending a beam measurement request to the first device. 27. The method according to claim 26, wherein the beam measurement request is carried in side link control information (SCI) or the beam measurement request is carried in downlink control information. 28. The method according to claim 27, wherein the SCI comprises side link control information 2A or side link control information 2C. 29. The method according to claim 26 or 27, wherein the SCI includes a second information field for indicating the beam measurement request, and different values of different bits in the second information field are used to indicate CSI request and/or said beam measurement request. 30. The method according to claim 27, wherein the SCI includes side link control information 1A or side link control information 2B or other SCI. 31. The method according to claim 30, wherein the side link control information 1A or side link control information 2B or other SCI includes a third information field for indicating the beam measurement request. 32. The method according to claim 30, wherein the other SCI is an SCI used to indicate the beam measurement request. 33. A communication method based on a side link, wherein the method is executed by a second device, the second device is a terminal device, and the method comprises: A sidelink beam measurement result indicated by the first device is received. 34. The method according to claim 33, wherein the receiving the side link beam measurement result indicated by the first device comprises: Receive the side link beam measurement result sent by the first device through the PC5 interface between the first device and the terminal device based on radio resource control RRC signaling; or Receive the side link beam measurement result sent by the first device based on a physical side link shared channel PSSCH; or Receive the side link beam measurement result sent by the first device based on a physical side link control channel PSCCH; or The side link beam measurement result indicated by the first device is received through a physical side link feedback channel PSFCH. 35. The method according to claim 34, wherein the side link beam measurement result sent by the first device is received in response to a physical side link shared channel (PSSCH), and the beam measurement result is carried in It is used in the media access control control element MAC CE for indicating the side link channel state information report. 36. The method according to claim 35, wherein the MAC-CE includes a first information field; The first information field is used to indicate whether the MAC-CE contains CSI, and whether the MAC-CE contains beam measurement results; or The first information field is used to indicate that the MAC-CE contains CSI or beam measurement results; or The first information field is used to indicate a beam measurement result. 37. The method according to claim 34, wherein the side link beam measurement result indicated by the first device is received in response to a physical side link feedback channel PSFCH, the beam measurement result is based on a bearer PSFCH implicit indication of hybrid automatic repeat request HARQ feedback of PSSCH; Wherein, the PSFCH has a corresponding relationship with the PSSCH, and the PSSCH has a corresponding relationship with reference signal resources. 38. The method according to any one of claims 32 to 37, wherein the beam measurement results include at least one of the following: at least one reference signal resource identifier; Beam measurement quality of at least one reference signal. 39. The method according to claim 38, wherein the reference signal resource identifier comprises at least one of the following: Side link channel state information reference signal CSI-RS resource identifier; Sidelink synchronization signal SS and physical broadcast channel PBCH block identification; A time slot identifier corresponding to the reference signal resource; The mini-slot identifier corresponding to the reference signal resource. 40. The method according to claim 38, wherein the reference signal resource identifier includes a PSSCH identifier corresponding to the reference signal resource, and the PSSCH identifier includes a PSFCH identifier corresponding to the PSSCH and/or a hybrid automatic repeat transmission corresponding to the PSSCH Request HARQ process number. 41. The method according to claim 38, wherein the beam measurement quality of the reference signal comprises at least one of the following: Layer 1 reference signal received power L1-RSRP; Signal-to-interference-plus-noise ratio L1-SINR of layer one; Layer 3 Reference Signal Received Power L3-RSRP; Layer 3 Reference Signal Received Quality L3-RSRQ Signal-to-interference-plus-noise ratio L3-SINR for layer three. 42. The method of claim 33, further comprising: sending a beam measurement request to the first device. 43. The method according to claim 42, wherein the beam measurement request is carried in side link control information (SCI) or the beam measurement request is carried in downlink control information. 44. The method according to claim 43, wherein the SCI comprises side link control information 2A or side link control information 2C. 45. The method according to claim 43 or 44, wherein the SCI includes a second information field for indicating the beam measurement request, and different values of different bits in the second information field are used to indicate the CSI request and/or the beam measurement request. 46. The method according to claim 43, wherein the SCI includes side link control information 1A or side link control information 2B or other SCI. 47. The method according to claim 46, wherein the side link control information 1A or side link control information 2B or other SCI includes a third information field for indicating the beam measurement request. 48. The method according to claim 46, wherein the other SCI is an SCI used to indicate the beam measurement request. 49. A communication device based on a side link, which is applied in the first device, and the device comprises: A determining module, configured to determine a side link beam measurement result in response to the side link beam measurement performed by the first device based on the reference signal resource; A sending module, configured to indicate the side link beam measurement result to the second device. 50. A communication device based on a side link, characterized in that it is applied to a second device, the second device is a network device, and the device comprises: The first receiving module is configured to receive the side link beam measurement result indicated by the first device. 51. A side link-based communication device, characterized in that it is applied to a second device, the second device is a terminal device, and the device includes: The second receiving module is configured to receive the side link beam measurement result indicated by the first device. 52. A communication device based on a side link, comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the method described in any one of claims 1-19. 53. A communication device based on a side link, comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the method described in any one of claims 20-32. 54. A communication device based on a side link, comprising: processor; memory for storing processor-executable instructions; Wherein, the processor is configured to: execute the method described in any one of claims 33-48. 55. A storage medium, characterized in that instructions are stored in the storage medium, and when the instructions in the storage medium are executed by the processor of the first device, the first device can execute the any one of the methods described. 56. A storage medium, characterized in that instructions are stored in the storage medium, and when the instructions in the storage medium are executed by the processor of the network device, the network device can execute any one of claims 20 to 32 method described in the item. 57. A storage medium, characterized in that instructions are stored in the storage medium, and when the instructions in the storage medium are executed by the processor of the terminal device, the terminal device can execute any one of claims 33 to 48. method described in the item.

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