WO2024168553A1 - Sidelink communication method and apparatus - Google Patents

Abstract

The present disclosure relates to the field of communications. Provided are a sidelink communication method and apparatus. In the method, in a preset situation, a UE uses preset receiving beams or selects M receiving beams to perform sidelink (SL) receiving operations, wherein the preset situation indicates that the SL receiving operations correspond to N different receiving beams, N being greater than M, M being the number of receiving beams that are used at the same time when the UE performs the SL receiving operation, and M being greater than or equal to 1. How a UE determines receiving beams and which receiving operations are executed when it is necessary to execute receiving operations corresponding to different receiving beams are taken into consideration, such that beam management is supported on an SL.

Description

A direct communication method and device Technical Field

The present disclosure relates to the field of mobile communication technology, and in particular to a direct communication method and device.

Background Art

With the continuous evolution of communication technology, more and more users have mobile devices or Internet of Things (IoT) devices. Mobile network communication technologies such as Sidelink (SL) provide technical support for the Internet of Things for many application scenarios. At the same time, the emergence of a new generation of new Internet applications has put forward higher requirements for wireless communication technology. In the current application of SL technology, the support of beam management has not been considered. When the UE needs to use different receiving beams to receive signals from multiple UEs at the same time, or when the UE needs to perform different SL receiving operations at the same time, there will be conflicts between different receiving beams.

Summary of the invention

The present disclosure proposes a direct communication method and device, which considers how the UE determines the receiving beam and which receiving operations to perform when SL receiving operations corresponding to different receiving beams need to be performed, so as to support beam management on the SL.

An embodiment of the first aspect of the present disclosure provides a direct communication method, which is executed by a terminal user equipment UE, and the method includes: under a preset situation, using a preset receiving beam or selecting M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or the physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM within the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM within the same time unit; the UE needs to perform multiple different types of SL receiving operations within one time unit, and multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In some embodiments, the method further includes: determining the value of M according to the protocol agreement or the configuration information carried in the downlink control signaling sent by the network device, or determining the value of M according to the number of simultaneously used receiving beams supported by the UE capability.

In some embodiments, the method further includes: sending uplink control signaling to a network device, wherein the uplink control signaling includes M, and/or sending direct control signaling to other UEs, wherein the direct control signaling includes M.

In some embodiments, using a preset receiving beam to perform a SL receiving operation includes: using a predefined or preconfigured preset receiving beam to perform a SL receiving operation; or, receiving configuration information of a preset receiving beam sent by a network device, and using the preset receiving beam to perform a SL receiving operation.

In some embodiments, selecting M receiving beams to perform SL receiving operations includes: determining the priorities of SL receiving operations corresponding to different receiving beams; and selecting M receiving beams from N receiving beams to perform SL receiving operations in descending order of priority.

In some embodiments, determining the priority of SL receiving operations corresponding to different receiving beams includes at least one of the following: when the receiving beam corresponds to receiving PSCCH/PSSCH transmission, determining the priority of receiving PSCCH/PSSCH transmission according to the indication of the priority field in the first-stage direct link control information, or according to the logical channel contained in the MAC PDU and the highest priority field in the MAC CE; when the receiving beam corresponds to receiving PSFCH transmission, determining the priority of receiving PSFCH transmission according to the priority of PSCCH/PSSCH corresponding to PSFCH; when the receiving beam corresponds to receiving S-SSB transmission, determining the priority of receiving S-SSB transmission according to the configuration information carried in the downlink control signaling predefined, preconfigured or sent by the network device; When the receiving beam corresponds to receiving a specific SL transmission, the priority of receiving the specific SL transmission is determined according to the configuration information carried in the downlink control signaling that is predefined, preconfigured or sent by the network device, wherein receiving the specific SL transmission includes at least one of the following: positioning or ranging reference signal reception, CSI-RS reception; when the receiving beam corresponds to a specific SL receiving operation, the priority of executing the specific SL receiving operation is determined according to the configuration information carried in the downlink control signaling that is predefined, preconfigured or sent by the network device, wherein the specific SL receiving operation includes at least one of the following: perception, CBR measurement, channel monitoring, LBT listening; when the same receiving beam corresponds to multiple different SL receiving operations, the priority of the SL receiving operation corresponding to the receiving beam is determined according to the highest priority among the multiple SL receiving operations.

In some embodiments, selecting M receiving beams to perform the SL receiving operation includes: selecting M receiving beams from N receiving beams to perform the SL receiving operation according to the type of the SL receiving operation.

In some embodiments, selecting M receiving beams to perform SL receiving operations includes: grouping N receiving beams to determine the receiving beam combinations supported by the UE; and selecting M receiving beams from the N receiving beams to perform SL receiving operations based on the receiving beam combinations supported by the UE.

In some embodiments, N receiving beams are grouped, and determining the receiving beam combination supported by the UE includes: grouping the N receiving beams, wherein the receiving beams in different receiving beam combinations support simultaneous SL receiving operations; and selecting M receiving beams belonging to different receiving beam combinations to perform SL receiving operations.

In some embodiments, grouping the N receive beams includes: grouping the N receive beams according to the antenna panels to which the N receive beams belong to determine a receive beam combination supported by the UE, wherein receive beams belonging to the same antenna panel are included in the same receive beam combination.

In some embodiments, selecting M receiving beams belonging to different receiving beam combinations to perform the SL receiving operation includes: selecting a receiving beam with the highest priority corresponding to the SL receiving operation from each receiving beam combination to perform the SL receiving operation.

In some embodiments, grouping the N receive beams includes: grouping the N receive beams according to the antenna panels to which the N receive beams belong to determine a receive beam combination supported by the UE, wherein receive beams belonging to different antenna panels are included in the same receive beam combination.

In some embodiments, selecting M receiving beams belonging to the same receiving beam combination to perform SL receiving operation includes: determining a beam combination that includes the receiving beam with the highest priority corresponding to the SL receiving operation; and determining M receiving beams from the beam combination to perform SL receiving operation.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

A second aspect embodiment of the present disclosure provides a direct communication device, which includes a transceiver module, and the transceiver module is used to: under a preset situation, use a preset receiving beam or select M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1.

The third aspect embodiment of the present disclosure provides a communication device, which includes: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method described in the first aspect embodiment of the present disclosure.

The fourth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by a processor, the method described in the first aspect embodiment of the present disclosure can be implemented.

In summary, according to the direct communication method and device proposed in the present disclosure, under preset circumstances, the UE uses a preset receiving beam or selects M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operations, and M is greater than or equal to 1. This takes into account how the UE determines the receiving beam and which receiving operations to perform when receiving operations corresponding to different receiving beams need to be performed, thereby supporting beam management on the SL.

Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

FIG1 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG2 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG3 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG4 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG5 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG6 is a schematic diagram of a flow chart of a direct communication method according to an embodiment of the present disclosure;

FIG7 is a block diagram of a direct communication device according to an embodiment of the present disclosure;

FIG8 is a block diagram of a direct communication device according to an embodiment of the present disclosure;

FIG9 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure;

FIG. 10 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.

DETAILED DESCRIPTION

Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

The continuous emergence of a new generation of new Internet applications has put forward higher requirements for wireless communication technology, driving the continuous evolution of wireless communication technology to meet the needs of applications.

In order to better support vehicle networking communications, LTE V2X was developed in LTE Release 14 to support communication between vehicle networking devices (such as vehicles and vehicles, vehicles and people, and vehicles and roadside nodes) through direct links; LTE V2X technology was then enhanced in Release 15 to support functions such as carrier aggregation. After the Release 15 version of the 5G new air interface NR technology was developed, 3GPP started the work of using the NR interface to support vehicle networking communications, and completed 5G sidelink in Release 16, supporting direct communication between vehicle networking devices through NR technology. In Release 17, NR Sidelink was further enhanced in terms of energy saving and reliability.

In LTE V2X and Release 16 NR V2X, beam management support was not considered because the main frequency bands for V2X applications were at lower spectrum positions. With the advancement and development of technology, it has become possible to use higher millimeter wave bands for Sidelink communications. When using, for example, millimeter wave bands (e.g. FR2 bands), analog beamforming or analog-digital hybrid beamforming is generally used. When both the transmitting UE and the receiving UE use analog beamforming, in order to obtain better communication quality, the transmitting beam and the receiving beam need to be paired to form a beam pair with better communication quality. Therefore, beam management needs to be supported on the Sidelink.

Beam management in traditional NR DL or UL communications is performed through reference signals such as the downlink PSFCH (Physical Sidelink Feedback Channel), CSI-RS or uplink SRS (Sounding Reference Signal). The UE determines the receiving beam used to receive different reference signals or reference signals at different resource locations by receiving and measuring the reference signal sent by the base station; the base station manages the UE's receiving beam (QCL Type D) by instructing the UE to use the same receiving beam as which reference signal or which reference signal at which resource location when receiving PDSCH (Physical Downlink Shared Channel). The protocol does not specify how the UE determines the receiving beam through reference signal measurement.

According to the UE capability, NR supports the UE to simultaneously receive two PDSCHs corresponding to different RS or RS resources (for example, FDM (Frequency Division Multiplexing) PDSCHs sent from two different TRPs). Since the uplink and downlink of the UE are controlled by the base station scheduling, the base station scheduling can ensure that the UE does not need to simultaneously receive multiple PDSCHs requiring different receive beams that exceed its capability.

NR SL supports resource allocation schemes based on UE autonomous scheduling. A UE may simultaneously receive PSCCH/PSSCH (Physical Sidelink Control Channel) sent by multiple UEs on different frequency domain subchannels in the same slot. The PSCCH/PSSCH sent by different UEs may correspond to different receiving beam directions. Since there is no central node coordination, the UE cannot guarantee that the number of receiving beams does not exceed its capabilities. Accordingly, the UE also needs to be able to simultaneously receive FDM/CDM (Code Division Multiplexing) PSFCH fed back from multiple UEs. Since different PSFCHs may come from different UE feedback, they may also correspond to different receiving beam directions.

In addition, in NR SL, UE needs to perform receiving operations such as sensing and CBR (Quasi Co Location) measurement. In R16/17/18, since analog beamforming is not considered, these receiving operations can be performed simultaneously with UE receiving PSCCH/PSSCH/PSFCH/S-SSB and other operations. When the UE uses analog beamforming, the receiving beam used for these receiving operations may be different from the receiving beam used for receiving PSCCH/PSSCH sent by a specific UE. Due to the current UE capabilities, there are conflicts between these receiving operations.

Therefore, in NR SL beam management, when the UE needs to use different receiving beams to receive signals from multiple UEs at the same time, or when the UE needs to perform different SL receiving operations at the same time, the conflict between different receiving beams needs to be resolved.

To this end, the present disclosure proposes a direct communication method and device to solve the problem of receiving beam conflict when UE SL performs multiple receiving operations at the same time or receives multiple SL signals corresponding to different beams.

The direct communication method and device provided in this application are described in detail below with reference to the accompanying drawings.

FIG1 shows a flow chart of a direct communication method according to an embodiment of the present disclosure. The method may be performed by a terminal user equipment (UE). In the present disclosure, the user equipment UE includes but is not limited to a smart terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle, a vehicle-mounted device, etc.

In the embodiments of the present disclosure, the solution provided by the present disclosure can be used for the fifth generation mobile communication technology (Fifth Generation, 5G) and its subsequent communication technologies, such as the fifth generation mobile communication technology evolution (5G-advanced), the sixth generation mobile communication technology (Sixth Generation, 6G), etc., which are not limited in the present disclosure.

As shown in FIG. 1 , the method may include the following steps.

S101, under preset conditions, use a preset receiving beam or select M receiving beams to perform a direct SL receiving operation.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

In other words, M may be the number of receiving beams used simultaneously by the UE for SL receiving operations, where "simultaneously used" does not limit the value of M, that is, M is applicable to this method when it is greater than or equal to 1. The specific value of M depends on the number of receiving operations in the same group or different groups, which is not limited by this disclosure.

Furthermore, the preset situation refers to that the UE uses different receiving beams to receive multiple SL signals, or the UE needs to perform multiple different SL receiving operations at the same time.

In an embodiment of the present disclosure, according to different specific scenarios that meet preset conditions, the UE may use a preset receiving beam to perform a direct SL receiving operation, for example, the UE uses a default beam configured by the base station to receive a specific S-SSB or SL CSI-RS resource, or the UE may select M receiving beams to perform a direct SL receiving operation, for example, the UE uses no more than M receiving beams out of N receiving beams to perform the corresponding SL receiving operation.

Therefore, in an embodiment of the present disclosure, under a preset situation, the UE uses a preset receiving beam or selects M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1. This takes into account how the UE determines the receiving beam to perform a direct SL receiving operation when it is necessary to perform SL receiving operations corresponding to different receiving beams, thereby supporting beam management on the SL.

Based on the embodiment shown in FIG1 , FIG2 shows a schematic flow chart of a direct communication method according to an embodiment of the present disclosure. The method can be executed by a UE. As shown in FIG2 , the method can include the following steps:

S201, under preset conditions, use a preset receiving beam or select M receiving beams to perform a direct SL receiving operation.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

Furthermore, the following embodiments further explain the N receiving beams, preset situations, SL receiving operations and the determination of the number M, and the following embodiments may be partially or fully implemented according to specific application scenarios.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

Among them, the Reference Signal (RS) includes but is not limited to SSB (Synchronization Signal and PBCH block), CSI-RS or uplink SRS (Sounding Reference Signal, channel sounding reference signal), etc.

In other words, the difference among the N receiving beams lies in that the QCLs (Quasi Co Location) of the N receiving beams are associated with different time-frequency resource sets, namely RS set(s), and they do not have SL transmissions with the same spatial receiving parameters.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and the multiple SL signals or channels may come from other UEs in different geographical locations, so different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM in the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM in the same time unit; the UE needs to perform multiple different types of SL receiving operations in one time unit, and the multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In other words, the preset situation is that the UE needs to use N receiving beams for SL reception at the same time, including that the UE needs to receive N SL channels or signals at the same time, and different SL channels or signals correspond to different receiving beams.

Furthermore, the preset situations specifically include but are not limited to: the UE needs to receive PSCCH/PSSCH (Physical Sidelink Control Channel) from different UEs in the same slot using FDM (Frequency Division Multiplexing), or PSFCH (Physical Sidelink Feedback Channel) from different UEs using FDM/CDM (Code Division Multiplexing); the UE needs to perform multiple different types of SL reception operations in one slot, and different reception operations correspond to different reception beams; or a combination of the above two situations.

Furthermore, different operation types of SL reception include but are not limited to: PSCCH/PSSCH reception, S-SSB reception, PSFCH reception, Sensing, CBR (Constant bitrate) measurement, etc.

In the 5G application scenario, the above-mentioned network device can be a 5G radio access network (NG-RAN) node, such as gNB or ng-eNB, where gNB can be used for independent networking, and ng-eNB can be used for backward compatibility with 4G networks to adapt to the application requirements of different core networks. The specific use case depends on the application scenario and is not limited here.

The time units described in the embodiments of the present disclosure may include time slots, subframes, frames, subslots, OFDM symbols, etc., which are not limited in the present disclosure.

In summary, in the embodiments of the present disclosure, under preset conditions, the UE uses a preset receiving beam or selects M receiving beams to perform a direct SL receiving operation, wherein the preset condition indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, and M is the UE. The number of receiving beams used simultaneously for SL receiving operations, M is greater than or equal to 1. It takes into account how the UE determines the receiving beam and which SL receiving operations to perform when SL receiving operations corresponding to different receiving beams need to be performed, so as to support beam management on SL.

Based on the embodiment shown in FIG. 1 or FIG. 2, FIG. 3 shows a flow chart of a direct communication method according to an embodiment of the present disclosure. The method can be executed by a UE. As shown in FIG. 3, the method may include the following steps:

S301, under preset conditions, use a preset receiving beam to perform a direct SL receiving operation.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

Furthermore, using a preset receiving beam to perform a SL receiving operation includes: using a predefined or preconfigured preset receiving beam to perform a SL receiving operation; or, receiving configuration information of a preset receiving beam sent by a network device, and using the preset receiving beam to perform a SL receiving operation.

In other words, the UE uses a specific default receiving beam for reception, for example, an omnidirectional antenna is used for reception by default, or the default beam is a beam for receiving specific S-SSB or SL CSI-RS resources. The default receiving beam can be configured by the base station, predefined, or pre-configured by the UE.

Among them, pre-configuration is obtained, for example, by reading pre-configuration data stored in the UE chip to obtain configuration information, pre-definition is obtained, such as prior agreement on the protocol, base station configuration, such as the UE receiving configuration information of a preset receiving beam sent by a network device.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or the physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM within the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM within the same time unit; the UE needs to perform multiple different types of SL receiving operations within one time unit, and multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In some embodiments, it also includes: determining the value of M according to the configuration information carried in the downlink control signaling sent by the protocol or the network device, or determining the value of M according to the number of simultaneously used receiving beams supported by the UE capability.

In some embodiments, it also includes: sending uplink control signaling to the network device, the uplink control signaling includes M, and/or sending direct control signaling to other UEs, the direct control signaling includes M.

The specific explanation of the above embodiments refers to the embodiment shown in FIG. 1 , which will not be repeated here.

In summary, according to the direct communication method provided by the present disclosure, under preset circumstances, the UE uses a preset receiving beam to perform a direct SL receiving operation, wherein the preset circumstances indicate that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for the SL receiving operation, and M is greater than or equal to 1, taking into account the need to perform SL receiving operations corresponding to different receiving beams. During operation, the UE uses the preset receiving beam to perform direct SL receiving operations to support beam management on the SL, thereby avoiding receiving beam conflicts when the SL performs multiple receiving operations at the same time or receives multiple SL signals corresponding to different beams.

It should be noted that the following embodiments of Figures 3, 4 and 5 are further limitations on the embodiments of Figure 1 or 2, in which, under preset circumstances, M receiving beams are selected to perform SL receiving operations. The selection order of M SL transmissions can be determined according to the methods of the embodiments of Figures 3, 4 and 5.

Based on the embodiment shown in FIG. 1 or FIG. 2, FIG. 4 shows a flow chart of a direct communication method according to an embodiment of the present disclosure. The method can be executed by a UE. As shown in FIG. 4, the method may include the following steps:

S401, under preset circumstances, determining the priorities of SL receiving operations corresponding to different receiving beams.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

Further, determining the priorities of SL receiving operations corresponding to different receiving beams includes at least one of the following:

When the receive beam corresponds to receiving a PSCCH/PSSCH transmission, the priority of receiving the PSCCH/PSSCH transmission is determined according to the indication of the priority field in the first stage direct link control information, or according to the logical channel contained in the MAC PDU and the highest priority field in the MAC CE;

When the receiving beam corresponds to receiving PSFCH transmission, the priority of receiving PSFCH transmission is determined according to the priority of PSCCH/PSSCH corresponding to PSFCH; when the receiving beam corresponds to receiving S-SSB transmission, the priority of receiving S-SSB transmission is determined according to the configuration information carried in the downlink control signaling predefined, preconfigured or sent by the network device;

When the receiving beam corresponds to receiving a specific SL transmission, determining the priority of receiving the specific SL transmission according to the configuration information carried in the downlink control signaling predefined, preconfigured or sent by the network device, wherein receiving the specific SL transmission includes at least one of the following: positioning or ranging reference signal reception, CSI-RS reception;

When the receiving beam corresponds to a specific SL receiving operation, determining the priority of performing the specific SL receiving operation according to the configuration information carried in the downlink control signaling predefined, preconfigured or sent by the network device, wherein the specific SL receiving operation includes at least one of the following: sensing, CBR measurement, channel monitoring, and LBT monitoring;

When the same receiving beam corresponds to multiple different SL receiving operations, the priority of the SL receiving operation corresponding to the receiving beam is determined according to the highest priority among the multiple SL receiving operations.

For example, for PSCCH/PSSCH transmission, the priority is determined according to the indication of the priority field in the 1st stage SCI, or the highest priority in the logical channel and MAC CE contained in the MAC PDU; for PSFCH transmission, the priority is determined according to the priority of the corresponding PSCCH/PSSCH; for S-SSB transmission, the priority is determined according to the (pre) configuration information; for operations such as sensing and CBR measurement, the priority can also be determined according to the (pre) configuration information, or it can be predefined as the lowest priority.

S402, selecting M receiving beams from N receiving beams in descending order of priority to perform SL receiving operation.

In other words, based on step 401, the priority of SL transmission is determined, and the selection order of M SL transmissions is determined according to the priority of SL transmission, that is, M receiving beams with high priority are preferentially selected from N receiving beams for SL receiving operation. In some embodiments, the receiving beam for UE to perform SL receiving operation can cover the M receiving beams, for example, the receiving beam is within the M receiving beams. The gain of any receiving beam in a specific direction (eg, peak direction) is not less than a specific value; or the XdB beamwidth angle of any one of the M receiving beams is within the YdB beamwidth angle of the receiving beam, and so on.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or the physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM within the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM within the same time unit; the UE needs to perform multiple different types of SL receiving operations within one time unit, and multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In some embodiments, it also includes: determining the value of M according to the configuration information carried in the downlink control signaling sent by the protocol or the network device, or determining the value of M according to the number of simultaneously used receiving beams supported by the UE capability.

In some embodiments, it also includes: sending uplink control signaling to the network device, the uplink control signaling includes M, and/or sending direct control signaling to other UEs, the direct control signaling includes M.

The specific explanation of the above embodiments refers to the embodiment shown in FIG. 1 , which will not be repeated here.

In summary, according to the direct communication method provided by the present invention, when it is necessary to perform SL receiving operations corresponding to different receiving beams, the UE determines the priority of the SL receiving operations corresponding to different receiving beams, and selects the receiving beams in descending order of priority to perform SL receiving operations, thereby supporting beam management on the SL and avoiding receiving beam conflicts when the SL performs multiple receiving operations at the same time or receives multiple SL signals corresponding to different beams.

Based on the embodiment shown in FIG. 1 or FIG. 2, FIG. 5 shows a schematic flow chart of a direct communication method according to an embodiment of the present disclosure. The method can be executed by a UE. As shown in FIG. 5, the method may include the following steps:

S501, under preset circumstances, according to the type of SL receiving operation, select M receiving beams from N receiving beams to perform SL receiving operation.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

In the embodiments of the present disclosure, the selection order of M SL transmissions is determined according to the type of SL receiving operation, i.e., the receiving behavior of the UE. For example, for N SL transmissions that need to be received simultaneously, the M beams are selected in the order of preferentially selecting the beams for PSCCH/PSSCH/PSFCH reception, then the beams for sensing reception, and then the beams for CBR measurement, etc. The present disclosure does not limit the order of receiving beam selection for different types of SL receiving operations.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or the physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM within the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM within the same time unit; the UE needs to perform multiple different types of SL receiving operations within one time unit, and multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In some embodiments, it also includes: determining the value of M according to the configuration information carried in the downlink control signaling sent by the protocol or the network device, or determining the value of M according to the number of simultaneously used receiving beams supported by the UE capability.

In some embodiments, it also includes: sending uplink control signaling to the network device, the uplink control signaling includes M, and/or sending direct control signaling to other UEs, the direct control signaling includes M.

The specific explanation of the above embodiments refers to the embodiment shown in FIG. 1 , which will not be repeated here.

In summary, according to the direct communication method provided by the present invention, under preset circumstances, the UE selects M receiving beams from N receiving beams to perform SL receiving operations according to the type of SL receiving operation, wherein the preset circumstances indicate that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform SL receiving operations, and M is greater than or equal to 1. This takes into account that when it is necessary to perform SL receiving operations corresponding to different receiving beams, the UE selects a receiving beam to perform a direct SL receiving operation according to the type of SL receiving operation, thereby supporting beam management on the SL and avoiding receiving beam conflicts when the SL performs multiple receiving operations at the same time or receives multiple SL signals corresponding to different beams.

Based on the embodiment shown in FIG. 1 or FIG. 2, FIG. 6 shows a flow chart of a direct communication method according to an embodiment of the present disclosure. The method can be executed by a UE. As shown in FIG. 6, the method may include the following steps:

S601: Under preset circumstances, N receiving beams are grouped to determine a receiving beam combination supported by the UE.

Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operation, and M is greater than or equal to 1.

In an embodiment of the present disclosure, the selection order of M SL transmissions is determined according to the possible receiving beam combinations supported by the UE, and the specific value of M is determined according to the number of SL receiving operations in the same group or different groups, which is not limited by the present disclosure.

The following are two methods for grouping N receive beams shown in the embodiments of the present disclosure:

In a grouping method, N receiving beams are grouped, wherein the receiving beams in different receiving beam combinations support simultaneous SL receiving operations; and M receiving beams belonging to different receiving beam combinations are selected to perform SL receiving operations.

In other words, the receiving beams of the same group cannot be used at the same time, but the receiving beams of different groups can be used at the same time, and the UE selects beams to use within different receiving beam groups.

Furthermore, the N receiving beams may be grouped according to the antenna panels to which they belong, so as to determine the receiving beam combinations supported by the UE, wherein the receiving beams belonging to the same antenna panel are included in the same receiving beam combination.

In other words, the receiving beams belonging to the same antenna panel are grouped together according to the antenna panels to which the different beams belong.

Further, selecting M receiving beams belonging to different receiving beam combinations to perform the SL receiving operation includes: selecting a receiving beam with the highest priority corresponding to the SL receiving operation from each receiving beam combination to perform the SL receiving operation.

In other words, the UE selects the beam with the highest priority in each different receiving beam group for use, wherein the receiving beams in different receiving beam groups can be used simultaneously.

In another grouping method, N receiving beams are grouped, and determining the receiving beam combination supported by the UE includes: grouping the N receiving beams, wherein the receiving beams in the same receiving beam combination support simultaneous SL receiving operations; and selecting M receiving beams belonging to the same receiving beam combination to perform SL receiving operations.

In other words, receiving beams of different groups cannot be used at the same time, but receiving beams of the same group can be used at the same time, and the UE selects beams to use within the same receiving beam group.

Furthermore, the N receiving beams may be grouped according to the antenna panels to which the N receiving beams belong, so as to determine the receiving beam combination supported by the UE, wherein receiving beams belonging to different antenna panels are included in the same receiving beam combination.

In other words, the receiving beams belonging to different antenna panels are grouped into one group according to the antenna panels to which they belong.

Furthermore, selecting M receiving beams belonging to the same receiving beam combination to perform the SL receiving operation includes: determining a beam combination that includes the receiving beam with the highest priority corresponding to the SL receiving operation; and determining M receiving beams from the beam combination to perform the SL receiving operation.

In other words, the UE selects the beam with the highest priority in the same receiving beam group for use, where the receiving beams in the same receiving beam group can be used simultaneously.

It should be understood that the SL priority described in Figure 4 is to determine the priority of each SL transmission in the same type of SL transmission, the SL priority described in Figure 5 is the priority divided for different types of SL transmissions, and the embodiment shown in Figure 6 groups the receiving beams. Within each receiving beam combination, the beam with the highest priority can be selected for use according to the SL transmission priority described in Figure 4 or Figure 5.

It can be understood that the two receiving beam grouping methods shown in the present disclosure are specifically grouped according to the antenna panels to which different beams belong. Other grouping methods may also be used, and the present disclosure is not limited thereto. After the two types of grouping shown in the present disclosure, M SL transmissions are selected, specifically according to the priority order of the receiving beams in different/same receiving beam groups. M SL transmissions may also be selected in other ways, and the present disclosure is not limited thereto.

For example, grouping is performed using enumeration, and the UE enumerates the receiving beam groups that can be used simultaneously, and selects a receiving beam group for reception according to an established principle. The established principle may be that the receiving beam group can support the most receiving beams among N receiving beams, or the receiving beam group can support the receiving beam of the SL channel/signal/receiving operation with the highest priority among the N receiving beams.

In summary, according to the direct communication method provided in the present invention, when it is necessary to perform SL receiving operations corresponding to different receiving beams, the UE groups N receiving beams to determine the receiving beam combination supported by the UE; according to the receiving beam combination supported by the UE, M receiving beams are selected from the N receiving beams to perform SL receiving operations, thereby supporting beam management on the SL and avoiding receiving beam conflicts when the SL performs multiple receiving operations at the same time or receives multiple SL signals corresponding to different beams.

In the above embodiments provided by the present application, the method provided by the embodiment of the present application is introduced from the perspective of the user equipment. In order to implement the various functions in the method provided by the above embodiments of the present application, the user equipment may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. A certain function of the above functions can be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.

Corresponding to the direct communication methods provided in the above-mentioned embodiments, the present disclosure also provides a direct communication device. Since the direct communication device provided in the embodiment of the present disclosure corresponds to the direct communication methods provided in the above-mentioned embodiments, the implementation method of the direct communication method is also applicable to the direct communication device provided in this embodiment and will not be described in detail in this embodiment.

FIG7 is a schematic diagram of the structure of a direct communication device 700 provided in an embodiment of the present disclosure. The direct communication device 700 may be used in a terminal user equipment UE.

As shown in Figure 6, the device 700 may include a transceiver module 710, which is used to: under a preset situation, use a preset receiving beam or select M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for the SL receiving operation, and M is greater than or equal to 1.

According to the direct communication device provided by the present disclosure, under preset circumstances, the UE uses a preset receiving beam or selects M receiving beams to perform a direct SL receiving operation, wherein the preset circumstances indicate that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1. This takes into account how the UE determines the receiving beam to perform the direct SL receiving operation when it is necessary to perform SL receiving operations corresponding to different receiving beams, thereby supporting beam management on the SL.

In some embodiments, the preset situations include at least one of the following: the UE needs to receive multiple SL channels or signals at the same time, and the multiple SL signals or channels may come from other UEs in different geographical locations, so different SL channels or signals correspond to different receiving beams; the UE needs to receive the physical direct control channel PSCCH or physical direct shared channel PSSCH from different UEs of frequency division multiplexing FDM in the same time unit; the UE needs to receive the physical direct feedback channel PSFCH from different UEs of FDM/code division multiplexing CDM in the same time unit; the UE needs to perform multiple different types of SL receiving operations in one time unit, and the multiple different types of SL receiving operations correspond to different receiving beams.

In some embodiments, the SL reception operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, and listen-before-send LBT monitoring.

In some embodiments, based on Figure 7, as shown in Figure 8, the device 700 also includes a determination module 720, which is used to determine the value of M according to the configuration information carried in the downlink control signaling sent by the protocol agreement or the network device, or to determine the value of M according to the number of simultaneously used receiving beams supported by the UE capability.

In some embodiments, the transceiver module 710 is further used to: send uplink control signaling to the network device, the uplink control signaling includes M, and/or send direct control signaling to other UEs, the direct control signaling includes M.

In some embodiments, the transceiver module 710 is specifically used to: use a predefined or preconfigured preset receiving beam to perform SL receiving operations; or, receive configuration information of a preset receiving beam sent by a network device, and use the preset receiving beam to perform SL receiving operations.

In some embodiments, the transceiver module 710 is specifically used to: determine the priority of SL receiving operations corresponding to different receiving beams; and select M receiving beams from N receiving beams to perform SL receiving operations in descending order of priority.

In some embodiments, determining the priority of SL receiving operations corresponding to different receiving beams includes at least one of the following: when the receiving beam corresponds to receiving PSCCH/PSSCH transmission, determining the priority of receiving PSCCH/PSSCH transmission according to the indication of the priority field in the first-stage direct link control information, or according to the logical channel contained in the MAC PDU and the highest priority field in the MAC CE; when the receiving beam corresponds to receiving PSFCH transmission, determining the priority of receiving PSFCH transmission according to the priority of PSCCH/PSSCH corresponding to PSFCH; when the receiving beam corresponds to receiving S-SSB transmission, determining the priority of receiving S-SSB transmission according to the priority of PSCCH/PSSCH corresponding to PSFCH; The priority of receiving S-SSB transmission is determined according to the configuration information carried in the downlink control signaling; when the receiving beam corresponds to receiving a specific SL transmission, the priority of receiving the specific SL transmission is determined according to the configuration information carried in the downlink control signaling that is predefined, preconfigured or sent by the network device, wherein receiving a specific SL transmission includes at least one of the following: positioning or ranging reference signal reception, CSI-RS reception; when the receiving beam corresponds to a specific SL receiving operation, the priority of executing the specific SL receiving operation is determined according to the configuration information carried in the downlink control signaling that is predefined, preconfigured or sent by the network device, wherein the specific SL receiving operation includes at least one of the following: perception, CBR measurement, channel monitoring, LBT listening; when the same receiving beam corresponds to multiple different SL receiving operations, the priority of the SL receiving operation corresponding to the receiving beam is determined according to the highest priority among the multiple SL receiving operations.

In some embodiments, the transceiver module 710 is further used to: select M receiving beams from the N receiving beams to perform the SL receiving operation according to the type of the SL receiving operation.

In some embodiments, the transceiver module 710 is further used to: group N receiving beams to determine the receiving beam combination supported by the UE; and select M receiving beams from the N receiving beams to perform SL receiving operations according to the receiving beam combination supported by the UE.

In some embodiments, the transceiver module 710 is further used to: group N receiving beams, wherein the receiving beams in different receiving beam combinations support simultaneous SL receiving operations; and select M receiving beams belonging to different receiving beam combinations to perform SL receiving operations.

In some embodiments, the determination module 720 is further used to: group the N receiving beams according to the antenna panels to which the N receiving beams belong to determine the receiving beam combinations supported by the UE, wherein the receiving beams belonging to the same antenna panel are included in the same receiving beam combination.

In some embodiments, selecting M receiving beams belonging to different receiving beam combinations to perform the SL receiving operation includes: selecting a receiving beam with the highest priority corresponding to the SL receiving operation from each receiving beam combination to perform the SL receiving operation.

In some embodiments, the determination module 720 is further used to: group the N receiving beams according to the antenna panels to which the N receiving beams belong to determine the receiving beam combination supported by the UE, wherein receiving beams belonging to different antenna panels are included in the same receiving beam combination.

In some embodiments, selecting M receiving beams belonging to the same receiving beam combination to perform SL receiving operation includes: determining a beam combination that includes the receiving beam with the highest priority corresponding to the SL receiving operation; and determining M receiving beams from the beam combination to perform SL receiving operation.

In some embodiments, the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different.

In summary, according to the direct communication device provided by the present disclosure, under preset circumstances, the UE uses a preset receiving beam or selects M receiving beams to perform a direct SL receiving operation, wherein the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE for SL receiving operations, and M is greater than or equal to 1. This takes into account how the UE determines the receiving beam and which SL receiving operations to perform when SL receiving operations corresponding to different receiving beams need to be performed, thereby supporting beam management on the SL.

Please refer to Figure 8, which is a schematic diagram of the structure of a communication device 800 provided in an embodiment of the present application. The communication device 800 can be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method. The device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.

The communication device 800 may include one or more processors 801. The processor 801 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to process the communication protocol and the communication data. The processor can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.), execute computer programs, and process data of computer programs.

Optionally, the communication device 800 may further include one or more memories 802, on which a computer program 804 may be stored, and the processor 801 executes the computer program 804 so that the communication device 800 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 802. The communication device 800 and the memory 802 may be provided separately or integrated together.

Optionally, the communication device 800 may further include a transceiver 805 and an antenna 806. The transceiver 805 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function. The transceiver 805 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.

Optionally, the communication device 800 may further include one or more interface circuits 807. The interface circuit 807 is used to receive code instructions and transmit them to the processor 801. The processor 801 executes the code instructions to enable the communication device 800 to execute the method described in the above method embodiment.

In one implementation, the processor 801 may include a transceiver for implementing receiving and sending functions. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated. The above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.

In one implementation, the processor 801 may store a computer program 803, which runs on the processor 801 and enables the communication device 800 to perform the method described in the above method embodiment. The computer program 803 may be fixed in the processor 801, in which case the processor 801 may be implemented by hardware.

In one implementation, the communication device 800 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments. The processor and transceiver described in the present application may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited by the figure. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be:

(1) Independent integrated circuit IC, or chip, or chip system or subsystem;

(2) having a set of one or more ICs, and optionally, the IC set may also include a storage component for storing data and computer programs;

(3) ASIC, such as modem;

(4) Modules that can be embedded in other devices;

(5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.;

(6)Others

For the case where the communication device can be a chip or a chip system, please refer to the schematic diagram of the chip structure shown in Figure 9. The chip shown in Figure 9 includes a processor 901 and an interface 902. The number of processors 901 can be one or more, and the number of interfaces 902 can be multiple.

Optionally, the chip further includes a memory 903, and the memory 903 is used to store necessary computer programs and data.

Those skilled in the art may also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application may be implemented by electronic hardware, computer software, or a combination of the two. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art may use various methods to implement the functions for each specific application, but such implementation should not be understood as exceeding the scope of protection of the embodiments of the present application.

The present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.

The present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media integrated. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)), etc.

A person skilled in the art may understand that the various numerical numbers such as first and second involved in the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application, but also indicate the order of precedence.

At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application. In the embodiments of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "A", "B", "C" and "D", etc., and there is no order of precedence or size between the technical features described by the "first", "second", "third", "A", "B", "C" and "D".

As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and/or data to a programmable processor.

The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communications network). Examples of communications networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

In addition, it should be understood that the various embodiments of the present application may be implemented individually or in combination with other embodiments when the solution permits.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (20)

A direct connection communication method, characterized in that the method is performed by a terminal user equipment UE, and the method comprises: In the default case, use the preset receiving beam or select M receiving beams to perform direct SL receiving operation. Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1. The method according to claim 1, characterized in that the preset situation includes at least one of the following: The UE needs to receive multiple SL channels or signals simultaneously, and different SL channels or signals correspond to different receiving beams respectively; The UE needs to receive frequency division multiplexing (FDM) physical direct control channels PSCCH or physical direct shared channels PSSCH from different UEs within the same time unit; The UE needs to receive FDM/code division multiplexing CDM physical direct feedback channels PSFCH from different UEs within the same time unit; The UE needs to perform multiple different types of SL receiving operations within one time unit, and the multiple different types of SL receiving operations correspond to different receiving beams respectively. The method according to claim 1 or 2, characterized in that the SL receiving operation includes at least one of the following: PSCCH reception, PSSCH reception, direct synchronization broadcast block S-SSB reception, PSFCH reception, positioning or ranging reference signal reception, channel state information reference signal CSI-RS reception, perception, channel busy rate CBR measurement, channel monitoring, listen before send LBT monitoring. The method according to any one of claims 1 to 3, characterized in that the method further comprises: Determine the value of M according to the protocol agreement or the configuration information carried in the downlink control signaling sent by the network device; or, The value of M is determined according to the number of simultaneously used receiving beams supported by the UE capability. The method according to any one of claims 1 to 4, characterized in that the method further comprises: Sending an uplink control signaling to a network device, wherein the uplink control signaling includes the M; and/or, Sending direct connection control signaling to other UEs, where the direct connection control signaling includes the M. The method according to any one of claims 1 to 5, characterized in that using a preset receiving beam to perform an SL receiving operation comprises: SL receive operation using predefined or preconfigured preset receive beams; or, Receive configuration information of a preset receiving beam sent by a network device, and use the preset receiving beam to perform SL receiving operations. The method according to any one of claims 1 to 5, characterized in that selecting M receiving beams to perform SL receiving operation comprises: Determine the priority of SL receiving operations corresponding to different receiving beams; In descending order of the priority, M receiving beams are selected from the N receiving beams to perform SL receiving operation. The method according to claim 7, characterized in that the determining the priority of the SL receiving operations corresponding to different receiving beams comprises at least one of the following: When the receive beam corresponds to receiving a PSCCH/PSSCH transmission, determining the priority of receiving the PSCCH/PSSCH transmission according to the indication of the priority field in the first-stage direct link control information, or according to the logical channel included in the MAC PDU and the highest priority field in the MAC CE; When the receiving beam corresponds to receiving a PSFCH transmission, determining the priority of receiving the PSFCH transmission according to the priority of the PSCCH/PSSCH corresponding to the PSFCH; When the receive beam corresponds to receiving an S-SSB transmission, determining a priority for receiving the S-SSB transmission according to configuration information carried in a predefined, preconfigured, or downlink control signaling sent by a network device; When the receiving beam corresponds to receiving a specific SL transmission, determining the priority of receiving the specific SL transmission according to the configuration information carried in the downlink control signaling predefined, preconfigured or sent by the network device, wherein the receiving of the specific SL transmission includes at least one of the following: positioning or ranging reference signal reception, CSI-RS reception; When the receiving beam corresponds to a specific SL receiving operation, determining a priority for performing the specific SL receiving operation according to configuration information carried in a downlink control signaling that is predefined, preconfigured, or sent by a network device, wherein the specific SL receiving operation includes at least one of the following: sensing, CBR measurement, channel monitoring, and LBT monitoring; When the same receiving beam corresponds to multiple different SL receiving operations, the priority of the SL receiving operation corresponding to the receiving beam is determined according to the highest priority among the multiple SL receiving operations. The method according to any one of claims 1 to 5, characterized in that selecting M receiving beams to perform SL receiving operation comprises: According to the type of SL receiving operation, M receiving beams are selected from N receiving beams to perform SL receiving operation. The method according to any one of claims 1 to 5, characterized in that selecting M receiving beams to perform SL receiving operation comprises: Grouping the N receive beams to determine a receive beam combination supported by the UE; According to the receiving beam combination supported by the UE, M receiving beams are selected from the N receiving beams to perform SL receiving operation. The method according to claim 10, characterized in that the grouping of the N receive beams to determine the receive beam combination supported by the UE comprises: Grouping the N receive beams, wherein the receive beams in different receive beam combinations support simultaneous SL receive operations; M receiving beams belonging to different receiving beam combinations are selected to perform SL receiving operation. The method according to claim 11, characterized in that the grouping of the N receive beams comprises: grouping the N receiving beams according to the antenna panels to which the N receiving beams belong, so as to determine a receiving beam combination supported by the UE, The receiving beams belonging to the same antenna panel are included in the same receiving beam combination. The method according to claim 11, characterized in that the selecting M receiving beams belonging to different receiving beam combinations to perform the SL receiving operation comprises: A receiving beam with the highest priority corresponding to the SL receiving operation is selected from each receiving beam combination to perform the SL receiving operation. The method according to claim 10, characterized in that the grouping of the N receive beams to determine the receive beam combination supported by the UE comprises: Grouping the N receive beams, wherein the receive beams in the same receive beam combination support simultaneous SL receive operations; M receive beams belonging to the same receive beam combination are selected to perform SL receive operation. The method according to claim 14, characterized in that the grouping of the N receive beams comprises: grouping the N receiving beams according to the antenna panels to which the N receiving beams belong, so as to determine a receiving beam combination supported by the UE, The receiving beams belonging to different antenna panels are included in the same receiving beam combination. The method according to claim 14, characterized in that the selecting M receiving beams belonging to the same receiving beam combination to perform the SL receiving operation comprises: Determining a beam combination including a highest priority receive beam corresponding to a SL receive operation; M receiving beams are determined from the beam combination to perform SL receiving operation. The method according to any one of claims 1 to 16 is characterized in that the time-frequency resource sets of the reference signals associated with the N receiving beams are different, and the spatial receiving beam parameters of the time-frequency resource sets of different reference signals are different. A direct communication device, characterized in that the device comprises a transceiver module, and the transceiver module is used to: In the default case, use the preset receiving beam or select M receiving beams to perform direct SL receiving operation. Among them, the preset situation indicates that the SL receiving operation corresponds to N different receiving beams, and N is greater than M, M is the number of receiving beams used simultaneously by the UE to perform the SL receiving operation, and M is greater than or equal to 1. A communication device, comprising: a transceiver; a memory; a processor, connected to the transceiver and the memory respectively, configured to control the wireless signal reception and transmission of the transceiver by executing computer executable instructions on the memory, and capable of implementing any one of the methods of claims 1-17. A computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by a processor, the method according to any one of claims 1 to 17 can be implemented.