CN117413603A - Methods and apparatus in nodes for wireless communications - Google Patents

Abstract

The present application provides a method device in a node for wireless communication to implement initial beam pairing based on sideline synchronization signal blocks. The method includes: receiving first information, the first information being used to determine a plurality of sidelink signal resources; sending a first sidelink signal group on the first sidelink signal resource; wherein, the plurality of sidelink signals The resource is associated with a plurality of first-type identifiers, the first identifier is one of the plurality of first-type identifiers, the first identifier is related to the first node, and the first identifier is used from all The first sidelink signal resource is determined among the plurality of sidelink signal resources.

Description

Methods and apparatus in nodes for wireless communications

Technical field

The present application relates to the field of communication technology, and more specifically, to a method and apparatus in a node for wireless communication.

Background technique

In sideline communications, using sideline synchronization signal blocks or an improved format of sideline synchronization signal blocks as reference signals for initial beam pairing has been an option. However, the traditional sideline synchronization signal block can only distinguish the synchronization source type to which the sending device belongs. Therefore, how to perform initial beam pairing based on the sideline synchronization signal block and how the receiving device of the sideline synchronization signal block identifies the sending device to perform initial beam pairing are technical issues that need to be solved.

Contents of the invention

Embodiments of the present application provide a method and device for wireless communication in a node. Each aspect involved in this application is introduced below.

In a first aspect, a method in a first node for wireless communication is provided, including: receiving first information, the first information being used to determine a plurality of sidelink signal resources; The first sidelink signal group is sent up; wherein, the plurality of sidelink signal resources are associated with a plurality of first-type identifiers, and the first identifier is one of the plurality of first-type identifiers, and the first identifier Related to the first node, the first identifier is used to determine the first sidelink signal resource from the plurality of sidelink signal resources.

In a second aspect, a method in a second node for wireless communication is provided, including: receiving first information, the first information being used to determine a plurality of sidelink signal resources; receiving at least one sidelink signal in the first sidelink signal group; wherein the plurality of sidelink signal resources are associated with a plurality of first-type identifiers, and the first identifier is one of the plurality of first-type identifiers. 1. The first identifier is related to the first sidelink signal resource, and the first identifier is used to determine the first node that sends the one or more sidelink signals.

In a third aspect, a method in a third node for wireless communication is provided, including: sending first information, the first information being used to determine a plurality of sidelink signal resources; wherein the plurality of sidelink signal resources are The row signal resource is associated with a plurality of first-type identifiers, the first identifier is one of the plurality of first-type identifiers, the first identifier is related to a first node that receives the first information, and the first identifier is one of the first-type identifiers. An identifier is used by the first node to determine a first sidelink signal resource for transmitting a first sidelink signal group from the plurality of sidelink signal resources.

In a fourth aspect, a first node for wireless communication is provided, including: a first receiver for receiving first information, the first information being used to determine multiple sidelink signal resources; a first transmitter A device configured to send a first sidelink signal group on a first sidelink signal resource; wherein the plurality of sidelink signal resources are associated with a plurality of first-type identifiers, and the first identifier is the plurality of first-type identifiers. One of the identifiers, the first identifier is related to the first node, and the first identifier is used to determine the first sidelink signal resource from the plurality of sidelink signal resources.

In a fifth aspect, a second node for wireless communication is provided, including: a third receiver for receiving first information, the first information being used to determine a plurality of sidelink signal resources; a fourth receiver The device receives at least one sidelink signal in the first sidelink signal group on the first sidelink signal resource; wherein the plurality of sidelink signal resources are associated with a plurality of first type identifiers, and the first identifier is the One of a plurality of first-type identifiers, the first identifier is related to the first sidelink signal resource, and the first identifier is used to determine the first node that sends the one or more sidelink signals. .

In a sixth aspect, a third node for wireless communication is provided, including: a second transmitter, configured to send first information, the first information being used to determine a plurality of sidelink signal resources; wherein, The plurality of sidelink signal resources are associated with a plurality of first-type identifiers, the first identifier is one of the plurality of first-type identifiers, and the first identifier is related to the first node that receives the first information. , the first identifier is used by the first node to determine the first sidelink signal resource for transmitting the first sidelink signal group from the plurality of sidelink signal resources.

A seventh aspect provides a first node used for wireless communication, including a transceiver, a memory and a processor, the memory is used to store programs, the processor is used to call the program in the memory, and control The transceiver receives or sends a signal to cause the first node to perform the method as described in the first aspect.

In an eighth aspect, a second node used for wireless communication is provided, including a transceiver, a memory and a processor, the memory is used to store programs, the processor is used to call the program in the memory, and control The transceiver receives or sends a signal to cause the second node to perform the method as described in the second aspect.

In a ninth aspect, a third node used for wireless communication is provided, including a transceiver, a memory and a processor, the memory is used to store programs, the processor is used to call the program in the memory, and control The transceiver receives or sends a signal to cause the third node to perform the method as described in the third aspect.

In a tenth aspect, embodiments of the present application provide a communication system, which includes the above-mentioned first node and/or second node and/or third node. In another possible design, the system may also include other devices that interact with the first node, the second node, or the third node in the solution provided by the embodiments of the present application.

In an eleventh aspect, embodiments of the present application provide a computer-readable storage medium that stores a computer program, and the computer program causes a computer to perform some or all of the steps in the methods of the above aspects.

In a twelfth aspect, embodiments of the present application provide a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause the computer to execute the above Some or all of the steps in various aspects of the method. In some implementations, the computer program product can be a software installation package.

In a thirteenth aspect, embodiments of the present application provide a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects. .

In this embodiment of the present application, the first information received by the first node may indicate multiple sidelink signal resources used to send the sidelink signal group, and the multiple sidelink signal resources may be mapped to identifiers of multiple nodes. It can be seen that the second node that receives the sidelink signal can distinguish different sending nodes according to the resources corresponding to the sidelink signal, thereby identifying the node sending the sidelink signal and achieving effective initial beam pairing.

In this embodiment of the present application, the first information may indicate multiple sidelink signal resources, that is, resources used by multiple nodes for initial beam pairing are pre-configured. The first node sends a sidelink signal group on the first sidelink signal resource. After receiving the first information, the second node can determine the available beam information by detecting the sidelink signal.

In this embodiment of the present application, any two nodes in sidelink communication perform initial beam pairing before the sidelink unicast link is established. Using paired beams to establish unicast links can expand the link range between sending nodes and receiving nodes, allowing more nodes to implement advanced business use cases.

In this embodiment of the present application, by performing initial beam pairing before the sidelink unicast link is established, the sending node can effectively avoid sending direct communication request messages with large resource overhead on all beams through beam scanning, thereby significantly Reduce resource waste.

Description of the drawings

FIG. 1 is an example system architecture diagram of a wireless communication system applicable to embodiments of the present application.

Figure 2 is a schematic diagram of the time slot structure of the sideline synchronization signal block.

Figure 3 is a schematic diagram of the distribution of multiple S-SSBs in one cycle.

FIG. 4 is a schematic flowchart of a method in a first node for wireless communication provided by an embodiment of the present application.

Figure 5 is a schematic flowchart of an implementation manner of initial beam pairing in the first operation.

Figure 6 is a schematic flowchart of another implementation of beam initial pairing in the first operation.

FIG. 7 is a schematic flowchart of an implementation manner for sidelink unicast link establishment in the first operation.

FIG. 8 is a schematic flowchart of a possible implementation of the method shown in FIG. 4 .

FIG. 9 is a schematic flowchart of another possible implementation of the method shown in FIG. 4 .

Figure 10 is a schematic structural diagram of a first node used for wireless communication provided by an embodiment of the present application.

Figure 11 is a schematic structural diagram of a second node used for wireless communication provided by an embodiment of the present application.

Figure 12 is a schematic structural diagram of a third node used for wireless communication provided by an embodiment of the present application.

Figure 13 is a schematic structural diagram of a device provided by an embodiment of the present application.

Figure 14 is a schematic diagram of a hardware module of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Regarding the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

FIG. 1 is an example system architecture diagram of a wireless communication system 100 applicable to the embodiment of the present application. The wireless communication system 100 may include a network device 110 and user equipments 121-129. Network device 110 may provide communication coverage for a specific geographic area and may communicate with terminals located within the coverage area.

In some implementations, user equipment (UE) can communicate with user equipment through a sidelink (SL). Side link communication can also be called proximity based services (ProSe) communication, unilateral communication, side chain communication, device to device (device to device, D2D) communication, etc.

In other words, sidelink data is transmitted between user equipment and user equipment through sidelinks. The sideline data may include data and/or control signaling. In some implementations, the sidelink data may be, for example, a physical sidelink control channel (PSCCH), a physical sidelink shared channel (PSSCH), or a PSCCH demodulation reference signal (DMRS). ), PSSCH DMRS, physical sidelink feedback channel (PSFCH), etc.

Several common sidelink communication scenarios are introduced below with reference to Figure 1. In sidelink communication, three scenarios can be divided into three scenarios depending on whether the user equipment in the sidelink is within the coverage of the network device. Scenario 1: User equipment performs sidelink communication within the coverage of network equipment. Scenario 2: Some user equipment performs sidelink communications within the coverage of network equipment. Scenario 3: The user equipment performs sidelink communication outside the coverage of the network equipment.

As shown in Figure 1, in scenario 1, user equipments 121-122 can communicate through side links, and user equipments 121-122 are all within the coverage of network device 110, or in other words, user equipments 121-122 are all in Within the coverage of the same network device 110. In this scenario, the network device 110 may send configuration signaling to the user equipments 121 to 122, and accordingly, the user equipments 121 to 122 communicate through the sidelink based on the configuration signaling.

As shown in Figure 1, in scenario 2, user equipment 123-124 can communicate through side links, and user equipment 123 is within the coverage of the network device 110, and user equipment 124 is outside the coverage of the network device 110. In this scenario, the user equipment 123 receives the configuration information of the network device 110 and communicates through the sidelink based on the configuration of the configuration signaling. However, for the user equipment 124, since the user equipment 124 is outside the coverage of the network device 110, it cannot receive the configuration information of the network device 110. At this time, the user equipment 124 can use the pre-configuration configuration information to and/or the configuration information sent by the user equipment 123 located within the coverage area, to obtain the configuration of the sidelink communication, so as to communicate with the user equipment 123 through the sidelink based on the obtained configuration.

In some cases, the user equipment 123 may send the above configuration information to the user equipment 124 through a physical sidelink broadcast channel (PSBCH) to configure the user equipment 124 to communicate through the sidelink.

As shown in FIG. 1 , in scenario 3, the user equipments 125 to 129 are all located outside the coverage range of the network device 110 and cannot communicate with the network device 110 . In this case, user equipment can perform sidelink communication based on preconfigured information.

In some cases, the user equipments 127-129 located outside the coverage of the network device can form a communication group, and the user equipments 127-129 in the communication group can communicate with each other. In addition, the user equipment 127 in the communication group can serve as a central control node, also called a cluster header (CH). Correspondingly, the user equipment in other communication groups can be called "group members".

It should be noted that FIG. 1 exemplarily shows one network device and multiple user equipments. Optionally, the wireless communication system 100 may include multiple network devices and the coverage of each network device may include other numbers. User equipment, this is not limited in the embodiments of this application.

Optionally, the wireless communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5th generation, 5G) systems or new radio (NR) systems, long term evolution (long term evolution, LTE) systems , LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solution provided by this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication systems, and so on.

The user equipment in the embodiment of the present application may also be called terminal equipment, access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (mobile Terminal, MT), remote station, remote station Terminal, mobile device, user terminal, wireless communication device, user agent or user device. The user equipment in the embodiment of the present application may be a device that provides voice and/or data connectivity to users, and may be used to connect people, things, and machines, such as handheld devices, vehicle-mounted devices, etc. with wireless connection functions. The user equipment in the embodiment of this application may be a mobile phone (mobile phone), a tablet computer (Pad), a notebook computer, a handheld computer, a mobile internet device (mobile internet device, MID), a wearable device, a vehicle, or an industrial control (industrial control) wireless terminals, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, Wireless terminals in smart cities, wireless terminals in smart homes, etc. Optionally, the user equipment can act as a base station. For example, the user equipment may act as a scheduling entity that provides sidelink signals between user equipments in vehicle-to-everything (V2X) or D2D, etc. For example, cell phones and cars use side-travel data to communicate with each other. Cell phones and smart home devices communicate between each other without having to relay communication signals through base stations.

The network device in the embodiment of the present application may be a device used to communicate with user equipment. The network device may also be called an access network device or a wireless access network device. For example, the network device may be a base station. The network device in the embodiment of this application may refer to a radio access network (radio access network, RAN) node (or device) that connects user equipment to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: Node B (NodeB), evolved base station (evolved NodeB, eNB), next generation base station (next generation NodeB, gNB), relay station, Transmission point (transmitting and receiving point, TRP), transmitting point (TP), access point (AP), main station MeNB, secondary station SeNB, multi-standard wireless (MSR) node, home base station, network control transmitter, access node, wireless node, transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (active antenna unit, AAU), radio frequency Head (remote radio head, RRH), central unit (central unit, CU), distributed unit (distributed unit, DU), positioning node, etc. The base station may be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station may also refer to a communication module, modem or chip used in the aforementioned equipment or devices. The base station can also be a mobile switching center and equipment that performs base station functions in D2D, V2X, and machine-to-machine (M2M) communications, network-side equipment in 6G networks, and equipment that performs base station functions in future communication systems. wait. Base stations can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific equipment form used by the network equipment.

Base stations can be fixed or mobile. For example, a helicopter or drone may be configured to act as a mobile base station, and one or more cells may move based on the mobile base station's location. In other examples, a helicopter or drone may be configured to serve as a device that communicates with another base station.

In some deployments, the network device in the embodiment of this application may refer to a CU or a DU, or the network device includes a CU and a DU. gNB can also include AAU.

Network equipment and user equipment can be deployed on land, indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and satellites in the sky. In the embodiments of this application, the scenarios in which network equipment and user equipment are located are not limited.

It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

In order to facilitate understanding, some relevant technical knowledge involved in the embodiments of this application is first introduced. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application. The embodiments of this application include at least part of the following content.

It should be understood that the explanation of terms (Terminology) in the embodiments of this application may refer to the specification protocols TS36 series, TS37 series and TS38 series of the 3rd generation partnership project (3GPP), but may also refer to the electrical and electronic Specification agreement of the Institute of Electrical and Electronics Engineers (IEEE).

With the development of communication technology, technical research and standardization on lateral communication are gradually carried out. Side-link communications developed in the RAN of 5G NR Release-16 (Release-16, Rel-16) are mainly used to support advanced V2X applications. In Rel-17, System Architecture 2 (SA2) specifically conducts research and standardization on ProSe including public safety and commercial related services. As part of Rel-17, in order to save power consumption and improve the reliability of side-link communications for battery-constrained users, the Radio Access Network Working Group 1 (RAN1) and RAN2 developed power-saving technologies (such as partial sensing). ), discontinuous reception (DRX) and Inter-UE coordination (IUC) technology.

The application fields of sideline communications are also gradually expanding. For example, although NR SL was originally developed to support V2X applications, the industry is increasingly keen to expand NR SL to more commercial use cases. For example: Highly autonomous driving technology requires sharing large amounts of sensor information between vehicles.

Due to the continuous expansion of sideline communication application fields, higher requirements have been put forward for NR SL. These requirements include two key requirements: increasing sidelink data rates and supporting more new carriers on the sidelink. By adding more new carriers, the transmission bandwidth can be expanded, further increasing the data rate.

It can be seen from the 3GPP project RP-222806 that Rel-18's NR SL evolution (evolution) research on supporting new carriers mainly focuses on sidelink beam management (SL BM). Sidelink beam management usually includes initial beam-pairing, beam maintenance, beam failure recovery (BFR), etc.

The relationship between PC5/sidelink unicast link establishment and sidelink initial beam pairing includes the following three candidate procedures:

Alternative process one: perform initial beam pairing before the sidelink unicast link is established between UE1 and UE2;

Alternative process two: perform initial beam pairing during the establishment of the sidelink unicast link between UE1 and UE2;

Alternative process three: Initial beam pairing is started after the sidelink unicast link between UE1 and UE2 is established.

Among them, alternative process one can expand the transmission range of side communication and improve resource utilization. Specifically, the advantage of performing initial beam pairing before the sidelink unicast link is established is that the paired beams can be fully utilized to expand the transmission range, allowing more UEs to establish sidelink unicast links, thereby providing more advanced business use cases. Serve. These UEs are, for example, high-performance audio-visual equipment in stadiums, large event venues, and concerts. Further, the advantage of performing initial beam pairing before the sidelink unicast link is established is that the direct communication request (DCR) message used to establish the unicast link only needs to be transmitted on the paired beam through the physical sidelink shared channel ( physical sidelink shared channel (PSSCH) transmission, thus avoiding the use of beam sweeping to send DCR multiple times on the resources occupied by multiple transmission beams, thus significantly improving resource utilization efficiency.

For the reference signal used in alternative process one, the 3GPP RAN1 meeting has agreed to use the sidelink synchronization broadcast signal block (SL synchronization signal/physical sidelink broadcast channel block, S-SS/PSBCH block, S-SSB) or S-SSB based on S-SS/PSBCH block. The improved format of SSB is available as an option. As an example, the operation process of alternative process 1 using S-SSB as the reference signal to perform initial beam pairing can be as follows:

UE1 sends multiple S-SSBs through beam sweeping;

UE2 performs reference signal received power (RSRP) measurement for the sideline synchronization signal (SL synchronization signal, SLSS) and/or PSBCH, and UE2 determines the transmit beam of UE1 and the receive beam of UE2 based on the measured RSRP;

For the determined transmit beam of UE1, UE2 reports the associated beam.

Traditional S-SSB design

In the traditional NR S-SSB design, the S-SSB consists of the sidelink primary synchronization signal (S-PSS), the sidelink secondary synchronization signal (S-SSS) and the PSBCH. Typically, S-SSB occupies one slot in the time domain. S-SSB uses the numerology configured by the SL bandwidth part (BWP), including subcarrier spacing and cyclic prefix (CP) length. In a SL BWP, the transmission of S-SSB cannot be frequency division multiplexed (FDM) with the transmission of other sidelink physical channels. Therefore, invalid S-SSB(s) transmission will not only increase resource consumption, but also seriously Affects the available resources of other physical SL channels/signals.

To facilitate understanding, the structure of a time slot of S-SSB is exemplified below with reference to Figure 2. Referring to Figure 2, a time slot of S-SSB includes S-PSS, S-SSS, PSBCH and the final guard symbol occupying two symbols respectively. In the structure shown in Figure 2, in a normal CP S-SSB time slot, the first symbol (i.e., the first PSBCH symbol) can be used for automatic gain control (automatic gain control, AGC), and the second and The third symbol is used to carry S-PSS, the fourth and fifth symbols are used to carry S-SSS, the last symbol is used to carry the protection symbol, and the other symbols are used to carry PSBCH.

As shown in Figure 2, S-SSB spans 11 common resource blocks (Common RBs) in a SL BWP in the frequency domain, that is, 132 subcarriers. Among them, S-PSS and S-SSS occupy 127 subcarriers. The frequency domain position of the S-SSB in the SL BWP is preconfigured or configured. Therefore, the S-SSB receiving UE (including UE1) does not need to perform blind detection in the frequency domain to find the S-SSB.

The UE sends S-SSB to expand the coverage of the synchronization reference source. Specifically, in NR SL, global navigation satellite system (GNSS), gNB/eNB and NR SL UE (ie synchronization reference UE, SyncRefUE) can all be used as the synchronization reference source of a UE. SyncRefUE can enable surrounding UEs to have the same timing reference by sending synchronization information (eg, S-SSB).

In the traditional S-SSB design, one or more S-SSBs are transmitted in a fixed period (ie, 160ms, 16 radio frames). In an S-SSB cycle, the number of multiple S-SSBs is preconfigured or configurable, depending on the subcarrier spacing (SCS) and frequency range (frequency range), as shown in Table 1. Table 1 shows the number of S-SSB transmissions in one S-SSB cycle.

Table 1

Within a fixed period, the distribution pattern of multiple S-SSBs depends on two parameters, one is the slot offset from the start of the S-SSB period to the first S-SSB, and the other is the slot offset of the two S-SSBs. The slot interval between consecutive S-SSBs.

For ease of understanding, the distribution of multiple S-SSBs within a fixed period is exemplified below with reference to Figure 3. In the example of Figure 3, the fixed period, which is the S-SSB period, is 16 radio frames. When 16 radio frames are taken as a group, the start of each cycle is the first time slot of the current group of radio frames and the end is the first time slot of the next group of radio frames.

There are 4 S-SSBs in a fixed period in Figure 3. The time period between the time slot where the first S-SSB is located and the starting position of the fixed period is the time offset. The time period between two adjacent S-SSBs in Figure 3 is the time interval.

In the NR Uu interface, SSBs sent by network devices (eg, gNB) may be part of the initial access procedure. In the initial access process, the UE can identify the best SSB by detecting SSBs or identify the best beam from gNB to UE, and then the UE can report through the physical random access channel (PRACH) The best SSB or the best beam pair. In this process, the gNB can identify the corresponding UE and the best beam pair with this UE.

The traditional NR S-SSB structure is similar to the NR Uu SSB structure, but the traditional S-SSB is designed only for synchronization. In other words, the traditional S-SSB can only distinguish the synchronization source type (synchronization source type) through the sidelink synchronization signal identity (SL-SSID) carried by S-PSS and S-SSS. The synchronization source type includes whether it is within the cell/GNSS coverage or outside the cell/GNSS coverage, and whether the SyncRefUE is directly or indirectly synchronized to the synchronization source. Therefore, the traditional SL-SSID is not UE-specific and cannot be used to distinguish different UEs. In other words, by detecting S-SSBs, UE2 cannot identify whether multiple SSBs are from the same UE or multiple UEs, nor can it identify UE1 that sent the S-SSB from multiple UEs. Therefore, UE2 cannot determine the options that need to be reported. Beams and the exact number of optional beams.

In related technical solutions, it is proposed to use enhanced SL-SSID. The enhanced SL-SSID includes two parts: UE-specific information indication and synchronization information indication: for the synchronization information indication part, the current solution can be reused; for UE-specific information indication, it can be based on the source identification (Source ID) and/or destination Destination ID.

However, this solution expands the indication range of SL-SSID, which inevitably requires redesigning the sequence generation of S-PSS and S-SSS. It is difficult to modify the standard and is not conducive to backward compatibility. That is, NRRel-16 and Rel-17 UEs are not supported.

In summary, for SL BM, how to perform initial beam pairing through S-SSB before the sidelink unicast link is established is a technical problem that needs to be solved. Furthermore, how UE2 receiving S-SSB identifies the sending UE through S-SSB is also a technical problem that needs to be solved. Furthermore, how the S-SSB can better carry the UE identity or source identity is also a technical issue that needs to be solved.

It should be understood that the problem mentioned above that the receiving node cannot identify the sending node when performing initial beam pairing based on S-SSB is only an example. The embodiments of the present application can be applied to the problem of being unable to identify the transmitting node when performing beam management based on any type of reference signal. Scenario of sending node problem.

In order to solve the above problem, an embodiment of the present application proposes a method for use in a first node of wireless communication. Through this method, the first node determines the first sidelink signal resource associated with the first node among the plurality of sidelink signal resources based on the first information, and sends the first sidelink signal on the first sidelink signal resource. Group. For the second node, it may be determined according to the resource of the sidelink signal whether the sidelink signal is sent by the first node. That is to say, this application introduces multiple sidelink signal resources associated with multiple nodes to facilitate the receiving node (or second node) to identify the sending node (or first node), thereby effectively performing operations such as initial beam pairing.

It should be noted that the beam mentioned in the embodiments of this application may include or be replaced by at least one of the following: beam, physical beam, logical beam, spatial filter, spatial parameter (spatial parameter), spatial domain filter, spatial domain transmission filter, spatial domain reception filter, antenna port. The meanings of these expressions may be consistent, and the embodiments of this application do not differentiate between them.

The method embodiments of the present application will be introduced in detail below with reference to the accompanying drawings. Figure 4 is a schematic flowchart of a method in a first node for wireless communication provided by an embodiment of the present application. The method shown in Figure 4 includes step S410 and step S420. It should be understood that the method shown in Figure 4 can be performed by the first node.

In some implementations, the first node may be any of the aforementioned user equipments that perform side-link communication. For example, the first node can be a vehicle in V2X or the basic communication facility in V2X. In some implementations, the first node may be located within the coverage range of the network or may be located outside the coverage range of the network. When located within network coverage, the first node can perform side-link communication based on the configuration of the network device.

As an embodiment, the first node may be a network-controlled repeater (NCR).

As an embodiment, the first node may be a user equipment, for example, the user equipments 121 to 129 shown in Figure 1 .

As an embodiment, the first node may be a relay, such as a relay terminal.

Referring to Figure 4, in step S410, first information is received.

The first node may receive the first information in various ways. In some embodiments, the first node may receive the first information through other nodes with which it interacts. The other nodes may be network devices or user equipment other than the first node. In some embodiments, the first node may receive the first information through its own higher layer.

In some embodiments, the sender of the first information may be a communications device interacting with the first node. For example, the sender of the first information is a network device that provides services for the first node. This network device may also be called a third node. For example, the third node sends the first information to the first node. For example, the sender of the first information may be other network side devices except the third node.

As an embodiment, the sender of the first information is a base station. The base station can provide communication services for the area where the first node is located.

As an embodiment, the first information is configured by a network device (including gNB).

In some embodiments, the sender of the first information may be a higher layer corresponding to the first node. The upper layer may send the first information to the lower layer or bottom layer of the first node. For example, the first information may be delivered to the physical layer layer by layer by a radio resource control (RRC) layer corresponding to the first node.

As an embodiment, the first information includes higher-level information. The higher layer information may be information about the first operation issued by each higher layer relative to the physical layer. For example, the first information may be an RRC signaling, or the first information may be carried in RRC signaling. For another example, the first information is high-level configuration or pre-configured.

As an embodiment, the first information includes RRC layer signaling.

As an embodiment, the first information includes an RRC information element (IE). For example, the first information may be carried in the RRC IE.

As an example, the first information may be an RRC IE (SL-SyncConfig). For details, please refer to 3GPP TS38.3316.3.5.

As an example, the first information may be an RRC IE (SL-FreqConfig).

As an example, the first information may be an RRC IE (SL-BWP-Config).

The first information is used to determine multiple sidelink signal resources. Multiple sidelink signal resources may be preconfigured time-frequency resources for transmitting one or more sidelink signals, or may be time-frequency resources occupied by sidelink signals, or may be time-frequency resources used for sidelink signals. resource. In some embodiments, sidelink signals related to multiple sidelink signal resources may include multiple sidelink signal groups. For example, any sidelink signal resource among multiple sidelink signal resources may be used for sidelink signals in one or more sidelink signal groups.

As an embodiment, the sidelink signal resources include time domain resources and/or frequency domain resources.

As an embodiment, the sidelink signal resources include one or more resource elements (resource elements, REs).

As an embodiment, the sidelink signal resource includes one or more time slots in the time domain.

As an embodiment, the sidelink signal resources include one or more subcarriers in the frequency domain.

As an embodiment, the plurality of sidelink signal resources are respectively used for the plurality of sidelink signal groups. The multiple sidelink signal groups may be multiple sidelink signal groups sent by multiple nodes, or may be multiple sidelink signal groups sent by one node. Multiple sidelink signal resources and multiple sidelink signal groups may have a one-to-one correspondence, or may not have a one-to-one correspondence.

For example, multiple sidelink signal resources can be used to send multiple sidelink signal groups, and can also be used to receive multiple sidelink signal groups, which is not limited here.

As an embodiment, the plurality of sidelink signal resources are respectively time-frequency resources occupied by the plurality of sidelink signal groups. For example, the time-frequency resources occupied by multiple sidelink signal groups are orthogonal.

As an embodiment, any sidelink signal group among the plurality of sidelink signal groups includes at least one sidelink signal. Any sidelink signal group may include one or more sidelink signals sent by any node.

As an embodiment, any sidelink signal group among the plurality of sidelink signal groups includes multiple sidelink signals.

The multiple sidelink signal resources indicated by the first information can be used to send multiple sidelink signals. In some embodiments, multiple sidelink signal resources are used to transmit sidelink synchronization signal blocks. The sidelink synchronization signal block may be a sidelink synchronization broadcast signal block, and the sidelink synchronization signal block may be expressed as S-SSB (sidelink-synchronization signal block), or may be expressed as S-SS/PSBCH block. This embodiment of the present application is Not limited. The S-SSB in this article can be replaced with S-SS/PSBCH block. The sideline synchronization signal block may include at least two of S-PSS, S-SSS and PSBCH. Sideline synchronization signal blocks may include S-PSS and S-SSS. The sideline synchronization signal block may not include PSBCH.

In some embodiments, multiple sidelink signal resources are used to transmit sidelink channel state information-reference signal (SLchannel state information-reference signal, SL CSI-RS).

As an embodiment, the first information is used to indicate multiple S-SSB resources.

As an embodiment, the first information is used to indicate multiple SL CSI-RS resources.

The first information may indicate multiple sidelink signal resources through multiple parameters. In some embodiments, the first information may include at least one of a transmission cycle, time allocations, and a frequency domain location. At least one of transmission period, time allocation and frequency domain location is used to determine multiple sidelink signal resources.

The transmission period may be used to indicate the time period of sidelink signal resources. Multiple transmission cycles refer to different time domain lengths and/or time domain positions of the transmission cycles. In some embodiments, the design of the NR SL may be used for multiple transmission cycles, or a new design may be made based on resource usage requirements. For example, when the transmission period of the first S-SSB is determined according to the requirements of initial beam pairing and/or sideline unicast link establishment and/or beam management, the design of the transmission period of the first S-SSB needs to facilitate higher layer signaling. instruct.

For example, any one of the multiple transmission periods may be indicated using a specified time unit. The designated time unit may be a time slot, a symbol, etc., which is not limited here.

As an embodiment, any one of the multiple transmission periods includes a positive integer number of time slots.

For example, any one of the multiple transmission periods may be represented by a specified time length. The specified time length may be represented by M time units to represent a time period. The time unit may be milliseconds.

As an embodiment, any one of the multiple transmission periods includes a positive integer number of milliseconds (ms).

As an embodiment, any one of the multiple transmission periods is equal to 160 ms.

In some embodiments, multiple sidelink signal resources may correspond to one transmission cycle. In order to realize the configuration of multiple sidelink signal resources within one transmission cycle, the transmission cycle can be expanded. For example, one or more of the multiple transmission periods is greater than 160 ms.

For example, any one of the multiple transmission periods may be specified T time units or T time lengths. The T can be a fixed value or a variable that changes according to a certain rule.

As an embodiment, any one of the plurality of transmission periods is a constant.

As an embodiment, any one of the plurality of transmission periods is variable.

As an embodiment, the multiple sidelink signal resources respectively correspond to multiple transmission periods. For example, multiple sidelink signal resources may respectively correspond to multiple different transmission periods. For another example, any several sidelink signal resources among multiple sidelink signal resources may correspond to the same transmission cycle. For another example, any sidelink signal resource among multiple sidelink signal resources may be distributed in two or more different transmission periods.

As an embodiment, the first information indicates multiple S-SSB cycles.

Time allocation can be used to indicate the time domain location of sidelink signal resources. Time allocation can be dictated by several parameters. Multiple time allocations refer to one or more parameters in the time allocations being different. In some embodiments, the time allocation of sidelink signal resources may include parameters such as time offset, time interval, and the number of resources in one transmission cycle. Taking the resources corresponding to S-SSB in Figure 3 as an example, the time offset, time interval and number of resources constitute the time allocation of S-SSB resources. Among them, the number of resources is 4.

As an embodiment, the number of resources in one transmission cycle is greater than or equal to 1.

As an embodiment, the number of resources in one transmission cycle can be any number among 1, 2, 4, 8, 16, 32, and 64.

As an embodiment, the value of the time offset can be any number from 0 to 1279.

As an example, the value of the time interval can be any number from 0 to 639.

As an embodiment, the multiple sidelink signal resources respectively correspond to multiple time allocations. For example, multiple sidelink signal resources may correspond to multiple different time allocations. The multiple different time allocations may be different in at least one of three parameters: time offset, time interval and resource number. For another example, any several sidelink signal resources among multiple sidelink signal resources may correspond to the same time allocation. An exemplary description will be given below with reference to Figures 8 and 9 .

As an example, the first information may indicate multiple S-SSB time allocations. Among them, each S-SSB time allocation corresponds to three parameters: the number of S-SSBs in an S-SSB cycle (sl-NumSSB-WithinPeriod), a time slot offset (sl-TimeOffsetSSB) and a time slot interval (sl-TimeInterval).

The frequency domain location can be used to indicate the frequency domain occupied by sidelink signal resources. In some embodiments, the frequency domain location of the sidelink signal resource may be indicated by at least two parameters including a starting location, an ending location, and a frequency domain range in the frequency domain. In some embodiments, the frequency domain locations of the sidelink signal resources may be continuous or spaced.

As an embodiment, the frequency domain location may be one or more RBs in the SL BWP.

As an embodiment, the frequency domain location may be one or more subcarriers.

In some embodiments, the frequency domain position of any sidelink signal resource among the plurality of sidelink signal resources includes the absolute frequency domain position of the sidelink signal resource, or the sidelink signal resource is relative to a reference frequency. Frequency offset of domain location. For example, the frequency domain location of the sidelink signal resource may be indicated by an absolute frequency domain location. For example, the frequency domain position can be represented as a frequency band or frequency point. For example, the frequency domain position of the sidelink signal resource may be indicated by a relative frequency domain position. The relative frequency domain position can be determined based on any reference frequency domain position. For example, the frequency domain position may be the sum of the starting frequency point and frequency offset of the corresponding frequency band of the sidelink signal. For another example, the frequency domain position may be the value obtained by subtracting the end frequency point and the frequency offset of the corresponding frequency band of the sidelink signal.

As an embodiment, the reference frequency domain position is an absolute frequency domain position.

As an embodiment, the frequency offset is one or more subcarriers or RBs and other parameters, which is not limited here.

As an embodiment, the first information indicates the frequency domain positions of multiple S-SSBs, or multiple frequency offsets from absolute frequency domain positions. This absolute frequency domain position can be used as a reference frequency domain position.

As an embodiment, the multiple sidelink signal resources respectively correspond to multiple frequency domain positions. For example, multiple sidelink signal resources may respectively correspond to multiple different frequency domain positions. For another example, any several sidelink signal resources among multiple sidelink signal resources may correspond to the same frequency domain position. For another example, any sidelink signal resource among multiple sidelink signal resources may be distributed in two or more different frequency domain locations.

When the sidelink signal is S-SSB, multiple sidelink signal resources are multiple S-SSB resources. Each S-SSB resource can correspond to different S-SSB cycles, different time slot offsets, different time slot intervals, different frequency domain positions and other parameters.

In some embodiments, multiple sidelink signal resources may be indicated by multiple parameters. For example, one or more parameters of the above-mentioned sidelink signal resources can be used as indexes of multiple sidelink signal resources to facilitate indication.

As an embodiment, the plurality of sidelink signal resources are configured for at least one of the sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management. Sidelink signal resources are configured for at least one of three operations to improve the efficiency of sidelink communication. The three operations will be introduced later in conjunction with Figures 5 to 7.

Continuing to refer to Figure 4, in step S420, the first sidelink signal group is transmitted on the first sidelink signal resource.

After determining multiple sidelink signal resources, the first node may select the first sidelink signal resource and send the sidelink signal. That is to say, the first sidelink signal resource is a resource related to the first node among the plurality of sidelink signal resources. In some embodiments, the first node may select a corresponding first sidelink signal resource based on the identifiers in the plurality of sidelink signal resources.

Multiple sidelink signal resources may be associated with multiple first-type identifiers to facilitate multiple nodes to determine corresponding sidelink signal resources. Multiple side-link signal resources may be associated with multiple first-type identifiers. Alternatively, multiple side-link signal resources may correspond to multiple first-type identifiers, or multiple side-link signal resources may be associated with multiple first-type identifiers. identification to distinguish.

As an embodiment, the plurality of first-type identifiers are respectively used to determine the plurality of sidelink signal resources.

In order to determine multiple sidelink signal resources, the multiple first-type identifiers may include multiple identifiers. In some embodiments, multiple identifiers may correspond to multiple sidelink signal resources one-to-one. For example, when multiple sidelink signal resources include multiple types of sidelink signal resources, multiple identifiers correspond to multiple types of sidelink signal resources one-to-one. Various types of sidelink signal resources can be classified based on one or more parameters of transmission period, time allocation, and time domain location. In some embodiments, one of the multiple identifiers corresponds to multiple sidelink signal resources.

The association between multiple first-type identifiers and multiple sidelink signal resources may be indicated by second information. That is to say, the second information is used to indicate that the plurality of sidelink signal resources are associated with the plurality of first-type identifiers. In some embodiments, the first node may receive the second information, thereby distinguishing multiple sidelink signal resources through multiple first-type identifiers.

The various ways in which the first node receives the second information may refer to the various ways in which the first information is received, which will not be described again here.

As an embodiment, the second information is used to indicate the association between the plurality of sidelink signal resources and the plurality of first-type identifiers. For example, the second information may indicate the corresponding relationship between the indexes of multiple sidelink signal resources and multiple first-type identifiers. For another example, the second information may indicate a manner of determining multiple first-type identifiers based on the time-frequency positions of multiple sidelink signal resources.

As an embodiment, the second information includes a higher layer signaling.

As an embodiment, the second information includes RRC layer signaling.

As an embodiment, the second information includes an RRC IE.

The second node may receive the first information and the second information in any of multiple ways by the first node.

In some embodiments, multiple sidelink signal resources may be associated with multiple first-type identifiers through mapping. As an embodiment, the second information indicates the mapping relationship between multiple S-SSB resources and L1 Source IDs or partial L1 SourceIDs.

As an embodiment, the plurality of sidelink signal resources are mapped to the plurality of first-type identifiers. Taking S-SSB resources as an example, when multiple first-type identifiers are source identifiers of layer 1 (L1), multiple S-SSB resources are mapped to layer 1 source identifiers Source IDs or part of L1 Source IDs. Among them, the source identifier can be represented by 8bits. The first node may select the S-SSB resource to send the S-SSB via its source identity. The second node can distinguish L1 Source IDs or partial L1 Source IDs through S-SSB detected on different resources.

As an embodiment, associating the plurality of sidelink signal resources with the plurality of first-type identifiers includes that the plurality of sidelink signal resources correspond to the plurality of first-type identifiers. Multiple first-type identifiers may be associated with indication parameters of multiple sidelink signal resources. For example, multiple first-type identifiers may correspond to the time domain locations of multiple sidelink signal resources.

As an embodiment, the plurality of sidelink signal resources are in one-to-one correspondence with the plurality of first-type identifiers. The first type of identifier is unique for each sidelink signal resource among the plurality of sidelink signal resources. In this scenario, the sending node and the receiving node identify a corresponding sidelink signal resource through a first-type identifier.

As an embodiment, at least one sidelink signal resource among the plurality of sidelink signal resources is associated with a first-type identifier among the plurality of first-type identifiers. For example, the indication parameters of two sidelink signal resources among the plurality of sidelink signal resources can be associated with one identifier of multiple first-type identifiers, and the two sidelink signal resources can be identified through this identifier. For example, one L1 Source ID can be associated with multiple S-SSB time allocations.

As an embodiment, one sidelink signal resource among the plurality of sidelink signal resources is associated with at least one first-type identifier among the plurality of first-type identifiers. For example, one sidelink signal resource among multiple sidelink signal resources can be associated with two identifiers of multiple first-type identifiers, and the sidelink signal resource can be identified by any of the two identifiers.

Multiple first-type identifiers can also be used to identify multiple nodes. Through multiple first-type identifiers, multiple nodes can correspond to multiple sidelink signal resources. Any node among the plurality of nodes may determine one or more sidelink signal resources corresponding thereto among the plurality of sidelink signal resources through the first type identifier.

As an embodiment, the plurality of first-type identifiers are respectively used to identify multiple nodes, and any node among the multiple nodes is a UE. Illustratively, the first type of identification may be used to distinguish two or more UEs in a sidelink. For example, two UEs correspond to a first-type identifier, and other nodes determine which is the sending node through the first-type identifier in the information.

As an embodiment, the plurality of first-type identifiers correspond to the plurality of nodes. Multiple first-type identifiers may correspond to multiple nodes through multiple consecutive or spaced identifiers. For example, when multiple first-type identifiers are sequence numbers, the sequence numbers of different nodes can be consecutive.

As an embodiment, the plurality of first-type identifiers correspond to the plurality of nodes one-to-one. For each node in the communication system, the first type of identifier is unique and can be used for identification of other communication devices.

As an embodiment, at least one of the plurality of first-type identifiers is associated with one of the plurality of nodes. For example, one node of a plurality of nodes may be associated with two identities of a plurality of first-type identities. Other nodes can identify the node by either of these two identifiers.

As an embodiment, one of the plurality of first-type identifiers is associated with at least one node of the plurality of nodes. For example, two of the plurality of nodes may be associated with one identity of multiple first-type identities. Other nodes can identify the two nodes through this identifier.

As an embodiment, the first node is one of the plurality of nodes. The first node can be any node among multiple nodes. When the first information indicates multiple sidelink signal resources for multiple nodes to send sidelink signals, the first node is any node among the multiple nodes that needs to send sidelink signals.

As an embodiment, the plurality of nodes includes the first node.

The second node may be a node where the first node wishes to perform initial beam pairing or sidelink unicast link establishment or sidelink beam management, or may be a node that receives a sidelink signal sent by the first node.

As an embodiment, the plurality of nodes include the second node.

The plurality of first-type identifiers may include a first identifier associated with the first node. The first identifier is related to the first node. Alternatively, the first node corresponds to the first identifier, or the first node can be identified with the first identifier. As an embodiment, the first identifier is used to identify the first node.

In some embodiments, multiple first-type identifiers may identify multiple nodes in multiple ways. Taking the first identifier as an example, the first identifier may include multiple identifiers related to the first node or the sidelink signal sent by the first node.

For example, the plurality of first-type identifiers may be node identifiers or beam indicators. When the first type of identification is beam indication, the receiving node can determine useful beam information by receiving sidelink signals.

As an embodiment, the first identification includes a source identity (Source ID). The source identifier of the sidelink signal in the first identification can facilitate the node that receives the sidelink signal to identify the sending node.

As an embodiment, the first identification includes a layer 1 source identity (L1Source ID). For example, the first node can find the associated S-SSB resource according to its own L1 Source ID, and send multiple beams on the S-SSB resource through beam scanning. The second node detects the S-SSB and determines the L1 Source ID of the UE sending the S-SSB based on the resources occupied by the detected S-SSB and the mapping relationship between the S-SSB resources and the L1 Source ID, thereby determining UE1.

As an embodiment, the first identification includes a layer 2 source identification (layer 2 source ID, L2 SourceID).

The first node may send a sidelink signal to one or more confirmed nodes. For example, when the first node performs unicast or multicast communication, the node receiving the sidelink signal has already performed sidelink communication with the first node, or established sidelink communication with the first node through the sidelink signal. In this scenario, the first identifier may also be used to identify the node communicating with the first node.

As an embodiment, the first identifier is used to identify the second node. The second node can be any node that communicates with the first node. In some embodiments, the second node may be one of a plurality of nodes. In some embodiments, the second node may not be one of the plurality of nodes. The second node can determine the association between multiple sidelink signal resources and the first type of identifier through various methods, and determine the sending node according to the received sidelink signal.

As an embodiment, the first identification includes a destination identity (Destination ID).

As an embodiment, the first identification includes a layer 1 destination identification (layer 1destination ID, L1Destination ID).

As an embodiment, the first identification includes a layer 2 destination identification (layer 2destination ID, L2Destination ID).

The first node may determine the first sidelink signal resource among the plurality of sidelink signal resources through the first identifier. As mentioned above, multiple first-type identifiers are associated with multiple sidelink signal resources. The first identifier is one of a plurality of first-type identifiers. Therefore, the first identifier corresponds to one or more sidelink signal resources among a plurality of sidelink signal resources. The resource corresponding to the first identifier is the first sidelink signal resource.

As an embodiment, the first identifier is used to determine the first sidelink signal resource. For example, the first identifier may be used by the first node to select the first sidelink signal resource corresponding thereto.

The first node sends a first sidelink signal group on a first sidelink signal resource. For the second node that receives sidelink signals, if the second node receives one or more sidelink signals in the first sidelink signal group, the sending node is determined to be the first node based on the resources occupied by the sidelink signals.

As can be seen from the foregoing, the first sidelink signal resource is one of a plurality of sidelink signal resources. Multiple sidelink signal resources are used for multiple sidelink signal groups. Therefore, the first sidelink signal group is one of the multiple sidelink signal groups.

As an embodiment, the multiple sidelink signal resources are respectively used for multiple sidelink signal groups, and the first sidelink signal group is one of the multiple sidelink signal groups. When multiple sidelink signal resources are respectively used for multiple sidelink signal groups, the multiple sidelink signal resources correspond to the multiple sidelink signal groups on a one-to-one basis. The first sidelink signal group corresponds to the first sidelink signal resource.

As an embodiment, the multiple sidelink signal resources are respectively used to send multiple sidelink signal groups, and the first sidelink signal group is one of the multiple sidelink signal groups.

As an embodiment, the multiple sidelink signal resources are respectively used to receive multiple sidelink signal groups, and the first sidelink signal group is one of the multiple sidelink signal groups.

As mentioned above, any sidelink signal group among the plurality of sidelink signal groups includes at least one sidelink signal. The first sidelink signal group is one of a plurality of sidelink signal groups.

As an embodiment, the first sidelink signal group includes at least one sidelink signal, and any sidelink signal in the first sidelink signal group is a sidelink synchronization signal block.

As an embodiment, the first sidelink signal group includes a plurality of sidelink signals.

For example, the sidelink signal in the first sidelink signal group may be S-SSB.

As an embodiment, any sidelink signal in the first sidelink signal group is S-SSB in legacy NRRel-16 or Rel-17.

As an embodiment, any sidelink signal in the first sidelink signal group is a new S-SSB, and the new S-SSB is different from the S-SSB in traditional NR Rel-16 and Rel-17. SSB. The new S-SSB adopts the improved format of S-SSB.

As an embodiment, any sidelink signal in the first sidelink signal group includes S-PSS.

As an embodiment, any sidelink signal in the first sidelink signal group includes S-SSS.

As an embodiment, at least one sidelink signal in the first sidelink signal group includes S-SSB.

As an embodiment, the first sidelink signal group includes at least one S-SSB.

For example, the sidelink signals in the first sidelink signal group may be SL CSI-RS.

As an embodiment, any sidelink signal in the first sidelink signal group is SL CSI-RS.

As an embodiment, at least one sidelink signal in the first sidelink signal group includes SL CSI-RS.

As an embodiment, the first sidelink signal group includes at least one SL CSI-RS.

In some embodiments, the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

As an embodiment, the first sidelink signal group is related to at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

Exemplarily, the first node performs sidelink initial beam pairing with other nodes by sending a first sidelink signal group. Side-link initial beam pairing is used for the first node to match transmit beams and receive beams with other nodes to determine the best beam pair. Other nodes are, for example, the second nodes mentioned above.

As an embodiment, the side-link initial beam pairing process can refer to the pairing process of other communication systems (for example, NR), or the related processes can be improved according to the characteristics of the side-link communication system.

As an embodiment, the process of side-link initial beam pairing includes two processes: coarse beam pairing and fine pairing.

To facilitate understanding, the initial beam pairing process including coarse pairing and fine pairing is exemplified below with reference to FIG. 5 . As shown in Figure 5, the sidelink receive beam of UE1 performs initial beam pairing with the sidelink transmit beam of UE2.

Referring to Figure 5, in step S510, rough pairing is completed between UE2 transmitting beam A and UE1 receiving beam 2.

In step S520, UE1 uses three narrower beams 2-1, 2-2, and 2-3 to receive the signal transmitted by beam A, and performs measurements to perform refined pairing. UE1 configures three narrow beams in beam 2, and UE2 sends signals multiple times.

Subsequently, UE1 selects a narrow beam as the receiving beam for the transmitting beam A of UE2 based on the measurement result.

As an embodiment, the process of initial beam pairing includes coarse beam pairing.

For ease of understanding, the initial beam pairing process including coarse pairing is exemplified below with reference to FIG. 6 . As shown in Figure 6, the sidelink transmit beam of UE1 and the sidelink receive beam of UE2 perform initial beam pairing. Referring to Figure 6, UE1 sends 4 beams through beam scanning. UE2 measures the four transmit beams of UE1 through two receive beams respectively. UE2 determines the matching UE1 transmitting beam and UE2 receiving beam based on the measurement results, and notifies UE1.

Exemplarily, the first node establishes a sidelink unicast link with other nodes by sending a first sidelink signal group. The other nodes are user equipment or relays that the first node expects to perform sidelink communication. The other nodes are, for example, second nodes.

For ease of understanding, the following takes UE1 and UE2 in Figure 7 as an example to illustrate a process of establishing a sidelink unicast link.

Referring to Figure 7, in step S710, UE1 sends a DCR to UE2. UE1 requests UE2 to establish a sidelink unicast link by sending a DCR.

In step S720, UE2 feeds back direct communication accept to UE1. Based on the feedback from UE2, UE1 and UE2 complete the establishment process of the sidelink unicast link.

In some embodiments, the sidelink unicast link establishment process may include initial beam pairing. For example, when initial beam pairing is performed before unicast link establishment, the sidelink unicast link establishment process may be considered to include performing initial beam pairing.

Exemplarily, the first node performs sidelink beam management with other nodes through the first sidelink signal group. As mentioned earlier, sidelink beam management includes processes such as initial beam pairing, beam maintenance, and beam failure recovery. Multiple processes in sidelink beam management can enable the first node to perform stable sidelink communications within a larger link range. Among them, processes such as beam maintenance and beam failure recovery can refer to the implementation process of other communication systems (for example, NR), or the relevant processes can be improved according to the characteristics of the sidelink communication system.

In some embodiments, not all sidelink signal groups require preconfigured sidelink signal resources. For example, the number of UEs that support initial beam pairing based on S-SSB is limited, and not all L1 Source IDs need to be associated with at least one S-SSB. Generally, only the L1 Source IDs of UEs that support S-SSB-based initial beam pairing have a mapping relationship with S-SSB resources.

In some embodiments, the first sidelink signal group includes at least one sidelink synchronization signal block, and the node corresponding to the first type of identification supports sidelink initial beam pairing and/or sidelink unicast based on the sidelink synchronization signal block. link establishment and/or sidelink beam management, or the at least one sidelink synchronization signal block occupies a first type of resource, or the resources of the first sidelink signal group are associated with the first type of identifier.

As an embodiment, multiple nodes corresponding to multiple first-type identifiers support S-SSB-based sidelink initial beam pairing and/or sidelink unicast link establishment and/or sidelink beam management.

As an embodiment, S-SSBs sent or received by multiple nodes corresponding to multiple first-type identifiers occupy first-type resources. The first type of resources is different from the resources occupied by the traditional S-SSB used for synchronization. That is, the first type of resources are configured separately from the resources used for synchronization.

As an embodiment, multiple sidelink signal resources used to send or receive S-SSB are associated with the first type of identifier, or carry the first type of identifier, or are mapped to the first type of identifier.

It can be seen from Figure 4 that the first node can determine the first sidelink signal resource from multiple sidelink signal resources through the first identifier. The first sidelink signal resource may be used to transmit the first sidelink signal group. The second node that receives one or more sidelink signals of the first sidelink signal group may determine that the sending node of the sidelink signal is the first node based on the resources occupied by the sidelink signals or the identifiers corresponding to the occupied resources. It can be seen that the second node can identify the first node and perform operations such as initial beam pairing, sideline unicast linking, or beam management with the first node.

As mentioned earlier, multiple sidelink signal resources are used for multiple sidelink signal groups. Since any sidelink signal group in the plurality of sidelink signal groups includes one or more sidelink signals, any sidelink signal resource in the plurality of sidelink signal resources may include one or more sidelink signal sub-resources. When any sidelink signal resource includes multiple sidelink signal sub-resources, the multiple sidelink signal sub-resources may be used to transmit multiple sidelink signals in any sidelink signal group.

As an embodiment, the sidelink signal sub-resources include time domain resources and/or frequency domain resources.

As an embodiment, the sidelink signal sub-resource includes one or more REs.

As an embodiment, the sidelink signal sub-resource includes one or more symbols in the time domain.

As an embodiment, the sidelink signal sub-resource includes one or more sub-carriers in the frequency domain.

In some embodiments, any sidelink signal resource among multiple sidelink signal resources includes multiple sidelink signal sub-resources, and the multiple sidelink signal sub-resources correspond to the same transmission cycle, the same time allocation, and the same At least one of the three frequency domain positions. For example, the resource configuration parameters corresponding to multiple sidelink signal sub-resources in any sidelink signal resource are the same to facilitate indication. For example, multiple sidelink signal resources correspond to the same time offset and time interval.

As an embodiment, multiple sidelink signal sub-resources included in any sidelink signal resource among the multiple sidelink signal resources are used for one sidelink signal group.

As an embodiment, any sidelink signal resource among the plurality of sidelink signal resources includes a plurality of sidelink signal sub-resources and is used to transmit a sidelink signal group.

As an embodiment, the first information may include at least one of the transmission period, time allocation and frequency domain position corresponding to the multiple sidelink signal sub-resources, so as to indicate the multiple sidelink signal sub-resources.

As an embodiment, the plurality of sidelink signal sub-resources are orthogonal in the time domain. Multiple sidelink signal resources can be orthogonal through different time allocation or frequency domain positions for simultaneous transmission or simultaneous reception of multiple sidelink signals.

In some embodiments, the first information includes a plurality of time allocations, and any one of the plurality of time allocations is used to indicate a time offset of one of the plurality of sidelink signal resources, a plurality of sidelink signal resources, and a time offset of one of the plurality of sidelink signal resources. At least one of the time interval of one sidelink signal resource among the sidelink signal resources and the number of sidelink signal sub-resources included in one sidelink signal resource among the plurality of sidelink signal resources.

As an embodiment, the first information includes multiple time allocations, and any one of the multiple time allocations is used to indicate one sidelink signal resource among the multiple sidelink signal resources. That is to say, the first information may respectively indicate multiple sidelink signal resources through multiple time allocations.

As an embodiment, any time allocation among the plurality of time allocations includes a time offset, a time interval and a number of sidelink signal sub-resources. Among them, the time offset and time interval can be any of the numbers mentioned above, or they can be newly designed parameters for different operations.

As an embodiment, the time offset included in any one of the plurality of time allocations is one of the plurality of sidelink signal sub-resources included in one of the plurality of sidelink signal resources. The time offset of the first sidelink signal sub-resource.

As an embodiment, the first sidelink signal sub-resource is the first sidelink signal sub-resource in the time domain among the plurality of sidelink signal sub-resources. Exemplarily, multiple sidelink signal sub-resources are configured in time sequence in the time domain. The first sidelink signal sub-resource among the plurality of sidelink signal resources is the earliest sidelink signal sub-resource in time.

As an embodiment, the time offset of the first sidelink signal sub-resource among the plurality of sidelink signal sub-resources is the difference between the first sidelink signal sub-resource among the plurality of sidelink signal sub-resources and the The time offset between the start of a transmission cycle to which multiple sidelink signal sub-resources belong. For example, when multiple sidelink signal subresources correspond to the same transmission cycle, the time offset may be the offset between the time domain position of the first sidelink signal subresource and the starting position of the transmission cycle.

Time offset can be represented by various time units, such as time slots, symbols, etc.

As an embodiment, the time offset of the first sidelink signal sub-resource among the plurality of sidelink signal sub-resources includes a positive integer number of time slots.

As an embodiment, the time offset of the first sidelink signal sub-resource among the plurality of sidelink signal sub-resources includes a positive integer number of sidelink time slots.

As an embodiment, the time interval included in any one of the plurality of time allocations is one of the plurality of sidelink signal sub-resources included in one of the plurality of sidelink signal resources. The time interval between any two consecutive sidelink signal sub-resources. For example, the interval between any two sidelink signal sub-resources among the plurality of sidelink signal sub-resources is a positive integer multiple of the time interval.

As an embodiment, the two consecutive sidelink signal sub-resources are any two consecutive sidelink signal sub-resources in the time domain among the plurality of sidelink signal sub-resources. For example, the two consecutive sidelink signal subresources may be the first sidelink signal subresource and the second sidelink signal subresource in the time domain, or the second and third sidelink signal subresources, and so on.

Time intervals can also be represented by various time units, such as time slots, symbols, etc.

As an embodiment, the time interval between two consecutive sidelink signal sub-resources among the plurality of sidelink signal sub-resources includes a positive integer number of time slots.

As an embodiment, the time interval between two consecutive sidelink signal sub-resources among the plurality of sidelink signal sub-resources includes a positive integer number of sidelink time slots.

As an embodiment, the number of sidelink signal sub-resources included in any one of the plurality of time allocations is all the sidelink signal sub-resources included in one of the plurality of sidelink signal resources. The number of resources. For example, one sidelink signal resource corresponds to one transmission cycle, and the number of sidelink signal resources within the time allocation may be the number of all sidelink signal sub-resources within one cycle.

As an embodiment, the number of sidelink signal sub-resources is the number of all sidelink signal sub-resources in the time domain among the plurality of sidelink signal sub-resources.

The first information may include multiple time allocations. Any of the plurality of time allocations may be used to indicate a plurality of sidelink signal sub-resources in any sidelink signal resource. Illustratively, three parameters in any time allocation are used to determine the time domain location of each of the plurality of sidelink signal sub-resources. Exemplarily, at least one of three parameters of time allocation is used to determine multiple sidelink signal resources. For example, when multiple time allocations of multiple sidelink signal resources differ only in time offset, multiple sidelink signal sub-resources in each sidelink signal resource may be indicated by the time offset.

As an embodiment, any time allocation among the plurality of time allocations is used to indicate a plurality of sidelink signal sub-resources included in one of the plurality of sidelink signal resources, and the plurality of sidelink signal sub-resources are The time offset of the first sidelink signal sub-resource among the side-link signal sub-resources, the time interval of two consecutive side-link signal sub-resources among the plurality of side-link signal sub-resources, the time offset of the first side-link signal sub-resource among the plurality of side-link signal sub-resources, At least one of the three numbers of sidelink signal subresources in the row signal subresources is used to determine the plurality of sidelink signal subresources.

As an embodiment, any time allocation among the plurality of time allocations is used to indicate a plurality of sidelink signal sub-resources included in one of the plurality of sidelink signal resources.

As an embodiment, the time offset of the first sidelink signal sub-resource among the plurality of sidelink signal sub-resources, and the time interval of two consecutive sidelink signal sub-resources among the plurality of sidelink signal sub-resources. , at least one of the number of sidelink signal sub-resources in the plurality of sidelink signal sub-resources is used to determine the plurality of sidelink signal sub-resources.

In some embodiments, at least two of the multiple sidelink signal resources correspond to the same transmission cycle, the time allocation of the at least two sidelink signal resources is different, and/or the time allocation of the at least two sidelink signal resources is The frequency domain positions are different. As can be seen from the foregoing, one transmission cycle can be configured with multiple sidelink signal resources, and the multiple sidelink signal resources correspond to the same transmission cycle. For example, the S-SSB cycle can be expanded to support the mapping of more L1 Source IDs.

As an embodiment, the difference in time allocation of at least two sidelink signal resources corresponding to the same transmission period includes at least one difference in time offset, time interval and number of sidelink signal sub-resources.

As an embodiment, different time allocations for at least two sidelink signal resources corresponding to the same transmission cycle include different time offsets to ensure that the first sidelink signal sub-resource in the two sidelink signal resources does not overlap. In this scenario, the time interval in the time allocation and the number of sidelink signal sub-resources may be the same or different.

As an implementation manner of the above embodiment, at least two sidelink signal resources with different time offsets in the same transmission cycle are independent of each other in time domain positions. That is to say, within the same transmission cycle, the time periods of at least two sidelink signal resources do not overlap, which can help reduce mutual interference of sidelink signals of different nodes. An exemplary description will be given below in conjunction with Figure 8 .

As an implementation manner of the above embodiment, at least two sidelink signal resources with different time offsets in the same transmission cycle interact with each other in time domain positions. That is to say, within the same transmission cycle, the time periods of at least two sidelink signal resources overlap, so that resources can be used more effectively. An exemplary description will be given below with reference to Figure 9 .

As an embodiment, the different time allocations of at least two sidelink signal resources corresponding to the same transmission cycle include the same time offset and different time intervals. In this scenario, the first sidelink signal sub-resource of the two sidelink signal resources can correspond to different frequency domain positions to avoid resource overlap.

As an embodiment, the different time allocations of at least two sidelink signal resources corresponding to the same transmission cycle include different time offsets and different time intervals. In this scenario, the time interval of at least two sidelink signal resources and the number of sidelink signal sub-resources should meet the requirement that all sidelink signal sub-resources of at least two sidelink signal resources are orthogonal.

As an embodiment, when at least two sidelink signal resources among the plurality of sidelink signal resources correspond to the same transmission cycle, all sidelink signal sub-resources in the at least two sidelink signal resources do not overlap.

The above introduces various design solutions for sidelink signal resources including multiple sidelink signal sub-resources. To facilitate understanding, the sidelink signal resources are exemplarily described below in conjunction with two possible implementations shown in Figures 8 and 9 . As shown in Figure 8 and Figure 9, the time-frequency resources are used to send or receive S-SSB.

Referring to Figure 8, one transmission cycle includes N sidelink signal resources, N>1. The N sidelink signal resources are sidelink signal resource 801, sidelink signal resource 802 to sidelink signal resource 80N respectively. As shown in Figure 8, each sidelink signal resource includes 4 sidelink signal sub-resources. The N sidelink signal resources have different time offsets and the same time intervals.

In Figure 8, N sidelink signal resources respectively correspond to N L1 source identifiers. Sidelink signal resource 801 corresponds to L1 source ID #1, sidelink signal resource 802 corresponds to L1 source ID #2, and so on, and sidelink signal resource 80N corresponds to L1 source ID #N. As mentioned above, the node corresponding to L1 source ID #1 can send S-SSBs on the sidelink signal resource 801. The node that receives the S-SSB on the sidelink signal resource 801 can determine the sending node as the L1 source ID based on the resource. The node corresponding to #1.

Continuing to refer to Figure 8, N sidelink signal resources correspond to the same transmission cycle. The time periods of the sidelink signal resource 801, the sidelink signal resource 802 to the sidelink signal resource 80N are independent of each other. On the time axis shown in Figure 9, N time periods arranged in sequence correspond to N sidelink signal resources respectively. Therefore, the four sidelink signal sub-resources of the sidelink signal resource 801 are in the first time period of the time domain, the four sidelink signal sub-resources of the sidelink signal resource 802 are in the second time period adjacent to it, and then are The time period of the sidelink signal resource 803 to the sidelink signal resource 80N arranged in sequence.

Referring to Figure 9, one transmission cycle in Figure 9 also includes N sidelink signal resources, which are sidelink signal resources 901, sidelink signal resources 902 to sidelink signal resources 90N. Similarly, each sidelink signal resource includes 4 sidelink signal sub-resources. The N sidelink signal resources have different time offsets and the same time intervals.

In Figure 9, N sidelink signal resources respectively correspond to N L1 source identifiers. Sidelink signal resource 901 corresponds to L1 source ID #1, sidelink signal resource 902 corresponds to L1 source ID #2, and so on, and sidelink signal resource 90N corresponds to L1 source ID #N.

What is different from Figure 8 is that the time periods of the N sidelink signal resources in Figure 9 overlap. On the timeline shown in Figure 9, N first sidelink signal sub-resources of N sidelink signal resources are first configured, and N second sidelink signal sub-resources of N sidelink signal resources are configured in sequence. N third sidelink signal sub-resources and N fourth sidelink signal sub-resources.

The method embodiments of the present application are described in detail above with reference to FIGS. 1 to 9 , and the device embodiments of the present application are described in detail below with reference to FIGS. 10 to 14 . It should be understood that the description of the method embodiments corresponds to the description of the device embodiments. Therefore, the parts not described in detail can be referred to the previous method embodiments.

Figure 10 is a first node used for wireless communication provided by an embodiment of the present application. As shown in FIG. 10 , the first node 1000 includes a first receiver 1010 and a first transmitter 1020 .

The first receiver 1010 may be configured to receive first information, where the first information is used to determine multiple sidelink signal resources.

The first transmitter 1020 may be configured to transmit the first sidelink signal group on the first sidelink signal resource; wherein the plurality of sidelink signal resources are associated with a plurality of first-type identifiers, and the first identifier is the One of a plurality of first-type identifiers, the first identifier is related to the first node, and the first identifier is used to determine the first sidelink signal from the plurality of sidelink signal resources. resource.

As an embodiment, the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

As an embodiment, the first sidelink signal group includes at least one sidelink signal, and any sidelink signal in the first sidelink signal group is a sidelink synchronization signal block.

As an embodiment, the first node 1000 further includes a second receiver, which can be used to receive second information; wherein the second information is used to indicate the relationship between the plurality of sidelink signal resources and the plurality of first types. Identity association.

As an embodiment, the first information includes at least one of a transmission cycle, a time allocation, and a frequency domain location, and at least one of the transmission cycle, the time allocation, and a frequency domain location. is used to determine the multiple sidelink signal resources.

As an embodiment, any sidelink signal resource among the multiple sidelink signal resources includes multiple sidelink signal sub-resources, and the multiple sidelink signal sub-resources correspond to the same transmission cycle and the same time allocation. , at least one of the three at the same frequency domain position.

As an embodiment, the first information includes a plurality of time allocations, and any one of the plurality of time allocations is used to indicate a time offset of one of the plurality of sidelink signal resources. Shift, the time interval of one sidelink signal resource among the plurality of sidelink signal resources, and the number of sidelink signal sub-resources included in one sidelink signal resource among the plurality of sidelink signal resources. At least one.

As an embodiment, at least two sidelink signal resources among the plurality of sidelink signal resources correspond to the same transmission cycle, the time allocation of the at least two sidelink signal resources is different, and/or the at least two sidelink signal resources The frequency domain locations of sidelink signal resources are different.

As an embodiment, the frequency domain position of any sidelink signal resource among the plurality of sidelink signal resources includes the absolute frequency domain position of the sidelink signal resource, or the sidelink signal resource is relative to the reference frequency domain. The frequency offset of the location.

As an embodiment, the first sidelink signal group includes at least one sidelink synchronization signal block, and the node corresponding to the first type of identification supports sidelink initial beam pairing and/or sidelink based on the sidelink synchronization signal block. unicast link establishment and/or sidelink beam management, or the at least one sidelink synchronization signal block occupies a first type of resource, or the resources of the first sidelink signal group are associated with the first type identifier .

As an embodiment, the first receiver 1010 and the first transmitter 1020 may be a transceiver 1330. The first node 1000 may also include a processor 1310 and a memory 1320, as specifically shown in Figure 13.

Figure 11 is a second node used for wireless communication provided by an embodiment of the present application. As shown in FIG. 11 , the second node 1100 includes a third receiver 1110 and a fourth receiver 1120 .

The third receiver 1110 may be configured to receive first information, where the first information is used to determine multiple sidelink signal resources.

The fourth receiver 1120 may be configured to receive at least one sidelink signal in the first sidelink signal group on the first sidelink signal resource; wherein the plurality of sidelink signal resources are associated with a plurality of first type identifiers, The first identifier is one of the plurality of first-type identifiers, the first identifier is related to the first sideline signal resource, and the first identifier is used to determine whether to send the one or more sideline signal resources. The first node of the row signal.

As an embodiment, the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

As an embodiment, the first sidelink signal group includes at least one sidelink signal, and any sidelink signal in the first sidelink signal group is a sidelink synchronization signal block.

As an embodiment, the second node 1100 further includes a fifth receiver, which can be used to receive second information; wherein the second information is used to indicate the relationship between the plurality of sidelink signal resources and the plurality of first types. Identity association.

As an embodiment, the first information includes at least one of a transmission cycle, a time allocation, and a frequency domain location, and at least one of the transmission cycle, the time allocation, and a frequency domain location. is used to determine the multiple sidelink signal resources.

As an embodiment, any sidelink signal resource among the multiple sidelink signal resources includes multiple sidelink signal sub-resources, and the multiple sidelink signal sub-resources correspond to the same transmission cycle and the same time allocation. , at least one of the three at the same frequency domain position.

As an embodiment, the first information includes a plurality of time allocations, and any one of the plurality of time allocations is used to indicate a time offset of one of the plurality of sidelink signal resources. Shift, the time interval of one sidelink signal resource among the plurality of sidelink signal resources, and the number of sidelink signal sub-resources included in one sidelink signal resource among the plurality of sidelink signal resources. At least one.

As an embodiment, at least two sidelink signal resources among the plurality of sidelink signal resources correspond to the same transmission cycle, the time allocation of the at least two sidelink signal resources is different, and/or the at least two sidelink signal resources The frequency domain locations of sidelink signal resources are different.

As an embodiment, the frequency domain position of any sidelink signal resource among the plurality of sidelink signal resources includes the absolute frequency domain position of the sidelink signal resource, or the sidelink signal resource is relative to the reference frequency domain. The frequency offset of the location.

As an embodiment, the first sidelink signal group includes at least one sidelink synchronization signal block, and the node corresponding to the first type of identification supports sidelink initial beam pairing and/or sidelink based on the sidelink synchronization signal block. unicast link establishment and/or sidelink beam management, or the at least one sidelink synchronization signal block occupies a first type of resource, or the resources of the first sidelink signal group are associated with the first type identifier .

As an embodiment, the third receiver 1110 and the fourth receiver 1120 may be transceivers 1330. The second node 1100 may also include a processor 1310 and a memory 1320, as specifically shown in Figure 13.

Figure 12 is a third node used for wireless communication provided by an embodiment of the present application. As shown in Figure 12, the third node 1200 includes a second transmitter 1210.

The second transmitter 1210 may be used to send first information, where the first information is used to determine multiple sidelink signal resources; wherein the multiple sidelink signal resources are associated with multiple first type identifiers, and the first The identification is one of the plurality of first-type identifications, the first identification is related to the first node that receives the first information, and the first identification is used by the first node to obtain from the plurality of first-type identifications. The first sidelink signal resource for transmitting the first sidelink signal group is determined among the sidelink signal resources.

As an embodiment, the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

As an embodiment, the first sidelink signal group includes at least one sidelink signal, and any sidelink signal in the first sidelink signal group is a sidelink synchronization signal block.

As an embodiment, the third node 1200 further includes a third transmitter, which can be used to send second information; wherein the second information is used to indicate the relationship between the plurality of sidelink signal resources and the plurality of first types. Identity association.

As an embodiment, the first information includes at least one of a transmission cycle, a time allocation, and a frequency domain location, and at least one of the transmission cycle, the time allocation, and a frequency domain location. is used to determine the multiple sidelink signal resources.

As an embodiment, any sidelink signal resource among the multiple sidelink signal resources includes multiple sidelink signal sub-resources, and the multiple sidelink signal sub-resources correspond to the same transmission cycle and the same time allocation. , at least one of the three at the same frequency domain position.

As an embodiment, the first information includes a plurality of time allocations, and any one of the plurality of time allocations is used to indicate a time offset of one of the plurality of sidelink signal resources. Shift, the time interval of one sidelink signal resource among the plurality of sidelink signal resources, and the number of sidelink signal sub-resources included in one sidelink signal resource among the plurality of sidelink signal resources. At least one.

As an embodiment, at least two sidelink signal resources among the plurality of sidelink signal resources correspond to the same transmission cycle, the time allocation of the at least two sidelink signal resources is different, and/or the at least two sidelink signal resources The frequency domain locations of sidelink signal resources are different.

As an embodiment, the frequency domain position of any sidelink signal resource among the plurality of sidelink signal resources includes the absolute frequency domain position of the sidelink signal resource, or the sidelink signal resource is relative to the reference frequency domain. The frequency offset of the location.

As an embodiment, the first sidelink signal group includes at least one sidelink synchronization signal block, and the node corresponding to the first type of identification supports sidelink initial beam pairing and/or sidelink based on the sidelink synchronization signal block. unicast link establishment and/or sidelink beam management, or the at least one sidelink synchronization signal block occupies a first type of resource, or the resources of the first sidelink signal group are associated with the first type identifier .

The second transmitter 1210 may be a transceiver 1330. The third node 1200 may also include a processor 1210 and a memory 1220, as specifically shown in Figure 13.

Figure 13 is a schematic structural diagram of a communication device according to an embodiment of the present application. The dashed line in Figure 13 indicates that the unit or module is optional. The device 1300 can be used to implement the method described in the above method embodiment. Device 1300 may be a chip, user equipment, or network equipment.

Apparatus 1300 may include one or more processors 1310. The processor 1310 can support the device 1300 to implement the method described in the foregoing method embodiments. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASICs), off-the-shelf programmable gate arrays (fieldprogrammable gate arrays, FPGAs), or Other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

Apparatus 1300 may also include one or more memories 1320. The memory 1320 stores a program, which can be executed by the processor 1310, so that the processor 1310 executes the method described in the foregoing method embodiment. The memory 1320 may be independent of the processor 1310 or integrated in the processor 1310.

Apparatus 1300 may also include a transceiver 1330. Processor 1310 may communicate with other devices or chips through transceiver 1330. For example, the processor 1310 can transmit and receive data with other devices or chips through the transceiver 1330.

Figure 14 is a schematic diagram of a hardware module of a communication device provided by an embodiment of the present application. Specifically, FIG. 14 shows a block diagram of a first communication device 1450 and a second communication device 1410 that communicate with each other in the access network.

The first communication device 1450 includes a controller/processor 1459, a memory 1460, a data source 1467, a transmit processor 1468, a receive processor 1456, a multi-antenna transmit processor 1457, a multi-antenna receive processor 1458, a transmitter/receiver 1454 and antenna 1452.

The second communication device 1410 includes a controller/processor 1475, a memory 1476, a data source 1477, a receive processor 1470, a transmit processor 1416, a multi-antenna receive processor 1472, a multi-antenna transmit processor 1471, and a transmitter/receiver 1418 and antenna 1420.

In transmission from the second communication device 1410 to the first communication device 1450, at the second communication device 1410, upper layer data packets from the core network or upper layer data packets from the data source 1477 are provided to Controller/Processor 1475. Core network and data sources 1477 represent all protocol layers above the L2 layer. Controller/processor 1475 implements the functionality of the L2 layer. In transmission from the second communications device 1410 to the first communications device 1450, the controller/processor 1475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels Multiplexing, and radio resource allocation to the first communication device 1450 based on various priority metrics. The controller/processor 1475 is also responsible for retransmission of lost packets, and signaling to the first communications device 1450. Transmit processor 1416 and multi-antenna transmit processor 1471 implement various signal processing functions for the L1 layer (ie, physical layer). The transmit processor 1416 implements encoding and interleaving to facilitate forward error correction at the second communication device 1410, as well as based on various modulation schemes (e.g., binary phase shift keying, quadrature phase shift keying, M phase shift Keying, M quadrature amplitude modulation) mapping of signal clusters. The multi-antenna transmit processor 1471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing to generate one or more spatial streams. The transmit processor 1416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and/or frequency domain, and then uses an inverse fast Fourier transform to produce the carrier time domain Physical channel for multicarrier symbol streams. Then the multi-antenna transmit processor 1471 performs transmit analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 1418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 1471 into a radio frequency stream, which is then provided to a different antenna 1420.

In transmission from the second communication device 1410 to the first communication device 1450, at the first communication device 1450, each receiver 1454 receives the signal through its respective antenna 1452. Each receiver 1454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream that is provided to a receive processor 1456. The receive processor 1456 and the multi-antenna receive processor 1458 implement various signal processing functions of the L1 layer. Multi-antenna receive processor 1458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from receiver 1454. The receive processor 1456 converts the baseband multi-carrier symbol stream after the received analog precoding/beamforming operation from the time domain to the frequency domain using a fast Fourier transform. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 1456, where the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 1458. The first communication device 1450 is any spatial stream that is the destination. The symbols on each spatial stream are demodulated and recovered in the receive processor 1456, and soft decisions are generated. The receive processor 1456 then decodes and deinterleaves the soft decisions to recover upper layer data and control signals transmitted by the second communications device 1410 on the physical channel. The upper layer data and control signals are then provided to the controller/processor 1459. Controller/processor 1459 implements the functions of the L2 layer. Controller/processor 1459 may be associated with memory 1460 that stores program code and data. Memory 1460 may be referred to as computer-readable media. In transmission from the second communication device 1410 to the first communication device 1450, the controller/processor 1459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , control signal processing to recover upper layer data packets from the second communication device 1410. The upper layer packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to L3 for L3 processing.

In transmission from the first communications device 1450 to the second communications device 1410, upper layer data packets are provided at the first communications device 1450 to a controller/processor 1459 using a data source 1467. Data source 1467 represents all protocol layers above the L2 layer. Similar to the transmit functionality at the second communications device 1410 as described in transmission from the second communications device 1410 to the first communications device 1450, the controller/processor 1459 implements header compression, encryption, packet Segmentation and reordering and multiplexing between logical and transport channels implement L2 layer functions for the user plane and control plane. The controller/processor 1459 is also responsible for retransmission of lost packets, and signaling to the second communications device 1410 . The transmit processor 1468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 1457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beam forming processing, and then transmits The processor 1468 modulates the generated spatial stream into a multi-carrier/single-carrier symbol stream, which undergoes analog precoding/beamforming operations in the multi-antenna transmit processor 1457 and then is provided to different antennas 1452 via the transmitter 1454. Each transmitter 1454 first converts the baseband symbol stream provided by the multi-antenna transmission processor 1457 into a radio frequency symbol stream, and then provides it to the antenna 1452.

In the transmission from the first communication device 1450 to the second communication device 1410, the functionality at the second communication device 1410 is similar to that in the transmission from the second communication device 1410 to the first communication device 1450. The reception function at the first communication device 1450 is described in the transmission. Each receiver 1418 receives radio frequency signals through its corresponding antenna 1420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 1472 and the receive processor 1470. The receive processor 1470 and the multi-antenna receive processor 1472 jointly implement the functions of the L1 layer. Controller/processor 1475 implements L2 layer functions. Controller/processor 1475 may be associated with memory 1476 that stores program code and data. Memory 1476 may be referred to as computer-readable media. In transmission from the first communication device 1450 to the second communication device 1410, the controller/processor 1475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression , control signal processing to recover upper layer data packets from the first communication device 1450. Upper layer packets from the controller/processor 1475 may be provided to the core network or all protocol layers above the L2 layer, and various control signals may also be provided to the core network or L3 for L3 processing.

As an embodiment, the first communication device 1450 device includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to interact with the Using the at least one processor together, the first communication device 1450 at least: receives first information, the first information is used to determine a plurality of sidelink signal resources; and sends a first signal on the first sidelink signal resource. Sidelink signal group; wherein, the plurality of sidelink signal resources are associated with a plurality of first-type identifiers, the first identifier is one of the plurality of first-type identifiers, and the first identifier is associated with the first-type identifier. Related to a node, the first identifier is used to determine the first sidelink signal resource from the plurality of sidelink signal resources.

As an embodiment, the first communication device 1450 device includes: a memory that stores a program of computer-readable instructions that, when executed by at least one processor, generates actions, and the actions include: receiving First information, the first information is used to determine a plurality of sidelink signal resources; a first sidelink signal group is sent on the first sidelink signal resource; wherein the plurality of sidelink signal resources and a plurality of third A type of identification association, the first identification is one of the plurality of first type identifications, the first identification is related to the first node, and the first identification is used to extract information from the plurality of side rows The first sidelink signal resource is determined among the signal resources.

As an embodiment, the first communication device 1450 corresponds to the first node or the second node in this application.

As an embodiment, the second communication device 1410 corresponds to the third node in this application.

As an embodiment, the first communication device 1450 is a user equipment, and the user equipment can serve as a relay node.

As an embodiment, the first communication device 1450 is a user equipment supporting V2X, and the user equipment can serve as a relay node.

As an embodiment, the first communication device 1450 is a user equipment supporting D2D, and the user equipment can serve as a relay node.

As an embodiment, the first communication device 1450 is a network control relay NCR.

As an embodiment, the first communication device 1450 is a relay wireless repeater.

As an embodiment, the first communication device 1450 is a relay.

As an embodiment, the second communication device 1410 is a base station.

As an embodiment, the first communication device 1450 corresponds to the first node or the second node in this application, the antenna 1452, the receiver 1454, the multi-antenna receiving processor 1458, the receiving processor 1456. The controller/processor 1459 is used to receive the first information in this application.

As an embodiment, the first communication device 1450 corresponds to the first node in this application, the antenna 1452, the transmitter 1454, the multi-antenna transmission processor 1457, the transmission processor 1468, the Controller/processor 1459 is used to transmit the first set of sideline signals in this application.

As an embodiment, the first communication device 1450 corresponds to the second node in this application, the antenna 1452, the receiver 1454, the multi-antenna receiving processor 1458, the receiving processor 1456, the The controller/processor 1459 is configured to perform reception of at least one sidelink signal in the first sidelink signal group of the present application.

As an embodiment, the antenna 1420, the transmitter 1418, the multi-antenna transmit processor 1471, the transmit processor 1416, and the controller/processor 1475 are used to transmit the first information.

An embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied in the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.

An embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied in the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.

An embodiment of the present application also provides a computer program. The computer program can be applied to the terminal or network device provided by the embodiments of the present application, and the computer program causes the computer to execute the methods performed by the terminal or network device in various embodiments of the present application.

It should be understood that the terms "system" and "network" may be used interchangeably in this application. In addition, the terms used in this application are only used to explain specific embodiments of the application and are not intended to limit the application. The terms “first”, “second”, “third” and “fourth” in the description, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific sequence. . Furthermore, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

In the embodiments of this application, the "instruction" mentioned may be a direct instruction, an indirect instruction, or an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B. relation.

In the embodiment of this application, "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B only based on A. B can also be determined based on A and/or other information.

In the embodiments of this application, the term "correspondence" can mean that there is a direct correspondence or indirect correspondence between the two, or it can also mean that there is an association between the two, or it can also mean indicating and being instructed, configuring and being configured, etc. relation.

In the embodiment of this application, "predefinition" or "preconfiguration" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including user equipment and network equipment). The application does not limit its specific implementation method. For example, predefined can refer to what is defined in the protocol.

In the embodiment of this application, the "protocol" may refer to a standard protocol in the communication field, which may include, for example, LTE protocol, NR protocol, and related protocols applied in future communication systems. This application does not limit this.

The term "and/or" in the embodiment of this application is only an association relationship describing associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, and A and B exist simultaneously. , there are three situations of B alone. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

In the various embodiments of the present application, the size of the sequence numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its functions and internal logic, and should not be determined by the implementation process of the embodiments of the present application. constitute any limitation.

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

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

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center integrated with one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, tape), optical media (eg, digital video disc (DVD)) or semiconductor media (eg, solid state disk (SSD) )wait.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims (66)

1. A method in a first node for wireless communication, comprising:

receiving first information, the first information being used to determine a plurality of sidestream signal resources;

transmitting a first set of side-signal on a first side-signal resource;

wherein the plurality of sideline signal resources are associated with a plurality of identifiers of a first type, the first identifier being one of the plurality of identifiers of the first type, the first identifier being associated with the first node, the first identifier being used to determine the first sideline signal resource from the plurality of sideline signal resources.

2. The method of claim 1, wherein the first set of sidelink signals is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

3. The method according to claim 1 or 2, wherein the first set of side row signals comprises at least one side row signal, any side row signal of the first set of side row signals being a side row synchronization signal block.

4. A method according to any one of claims 1-3, comprising:

receiving second information;

wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

5. The method of any of claims 1-4, wherein the first information comprises at least one of a transmission period, a time allocation, and a frequency domain location, the at least one of a transmission period, the time allocation, and the frequency domain location being used to determine the plurality of sidelobe signal resources.

6. The method of any of claims 1-5, wherein any of the plurality of side-row signal resources comprises a plurality of side-row signal sub-resources, each corresponding to at least one of a same transmission period, a same time allocation, and a same frequency domain location.

7. The method of claim 5 or 6, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sideline signal resources, a time interval for one of the plurality of sideline signal resources, and a number of sideline signal sub-resources comprised by one of the plurality of sideline signal resources.

8. The method according to any of claims 5-7, wherein at least two of the plurality of sideline signal resources correspond to a same transmission period, wherein the time allocations of the at least two sideline signal resources are different, and/or wherein the frequency domain locations of the at least two sideline signal resources are different.

9. The method of any of claims 5-8, wherein the frequency domain location of any of the plurality of side-row signal resources comprises an absolute frequency domain location of the side-row signal resource or a frequency offset of the side-row signal resource relative to a reference frequency domain location.

10. The method according to any of claims 1-9, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identification supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class resource, or wherein the resource of the first sideline signal group is associated with the first class identification.

11. A method in a second node for wireless communication, comprising:

Receiving first information, the first information being used to determine a plurality of sidestream signal resources;

receiving at least one side signal in a first side signal group on a first side signal resource;

wherein the plurality of sidestream signal resources are associated with a plurality of first type identifications, a first identification being one of the plurality of first type identifications, the first identification being related to the first sidestream signal resources, the first identification being used to determine a first node transmitting the one or more sidestream signals.

12. The method of claim 11, wherein the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

13. The method of claim 11 or 12, wherein the first set of side row signals comprises at least one side row signal, and wherein either side row signal in the first set of side row signals is a side row synchronization signal block.

14. The method according to any one of claims 11-13, comprising:

receiving second information;

wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

15. The method of any of claims 11-14, wherein the first information comprises at least one of a transmission period, a time allocation, and a frequency domain location, the at least one of a transmission period, the time allocation, and the frequency domain location being used to determine the plurality of sidelobe signal resources.

16. The method of any of claims 11-15, wherein any of the plurality of side-row signal resources comprises a plurality of side-row signal sub-resources, each corresponding to at least one of a same transmission period, a same time allocation, and a same frequency domain location.

17. The method of claim 15 or 16, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sideline signal resources, a time interval for one of the plurality of sideline signal resources, and a number of sideline signal sub-resources comprised by one of the plurality of sideline signal resources.

18. The method according to any of claims 15-17, wherein at least two of the plurality of sideline signal resources correspond to a same transmission period, wherein the time allocations of the at least two sideline signal resources are different, and/or wherein the frequency domain locations of the at least two sideline signal resources are different.

19. The method of any of claims 15-18, wherein the frequency domain location of any of the plurality of side-row signal resources comprises an absolute frequency domain location of the side-row signal resource or a frequency offset of the side-row signal resource relative to a reference frequency domain location.

20. The method according to any of claims 11-19, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identification supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class resource, or wherein the resource of the first sideline signal group is associated with the first class identification.

21. A method in a third node for wireless communication, comprising:

transmitting first information, the first information being used to determine a plurality of sidestream signal resources;

wherein the plurality of sidestream signal resources are associated with a plurality of first type identifications, a first identification being one of the plurality of first type identifications, the first identification being associated with a first node receiving the first information, the first identification being used by the first node to determine a first sidestream signal resource from the plurality of sidestream signal resources to transmit a first sidestream signal group.

22. The method of claim 21, wherein the first set of sidelink signals is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

23. The method of claim 21 or 22, wherein the first set of side row signals comprises at least one side row signal, and wherein either side row signal in the first set of side row signals is a side row synchronization signal block.

24. The method according to any one of claims 21-23, comprising:

transmitting second information;

wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

25. The method of any of claims 21-24, wherein the first information comprises at least one of a transmission period, a time allocation, and a frequency domain location, the at least one of a transmission period, the time allocation, and the frequency domain location being used to determine the plurality of sidelobe signal resources.

26. The method of any of claims 21-25, wherein any of the plurality of side-row signal resources comprises a plurality of side-row signal sub-resources, each corresponding to at least one of a same transmission period, a same time allocation, and a same frequency domain location.

27. The method of claim 25 or 26, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sideline signal resources, a time interval for one of the plurality of sideline signal resources, and a number of sideline signal sub-resources comprised by one of the plurality of sideline signal resources.

28. The method according to any of claims 25-27, wherein at least two of the plurality of sideline signal resources correspond to a same transmission period, wherein the time allocations of the at least two sideline signal resources are different, and/or wherein the frequency domain locations of the at least two sideline signal resources are different.

29. The method of any of claims 25-28, wherein the frequency domain location of any of the plurality of side-row signal resources comprises an absolute frequency domain location of the side-row signal resource or a frequency offset of the side-row signal resource relative to a reference frequency domain location.

30. The method according to any of claims 21-29, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identification supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class resource, or wherein the resource of the first sideline signal group is associated with the first class identification.

31. A first node for wireless communication, comprising:

a first receiver for receiving first information, the first information being used to determine a plurality of sidestream signal resources;

a first transmitter for transmitting a first set of side-line signals on a first side-line signal resource;

wherein the plurality of sideline signal resources are associated with a plurality of identifiers of a first type, the first identifier being one of the plurality of identifiers of the first type, the first identifier being associated with the first node, the first identifier being used to determine the first sideline signal resource from the plurality of sideline signal resources.

32. The first node of claim 31, wherein the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment, and sidelink beam management.

33. The first node of claim 31 or 32, wherein the first set of side row signals comprises at least one side row signal, any side row signal in the first set of side row signals being a side row synchronization signal block.

34. The first node according to any of claims 31-33, comprising:

A second receiver for receiving second information;

wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

35. The first node of any of claims 31-34, wherein the first information comprises at least one of a transmission period, a time allocation, and a frequency domain location, the at least one of a transmission period, the time allocation, and the frequency domain location being used to determine the plurality of sidelobe signal resources.

36. The first node of any of claims 31-35, wherein any of the plurality of sidelink signal resources comprises a plurality of sidelink signal sub-resources, each of the plurality of sidelink signal sub-resources corresponding to at least one of a same transmission cycle, a same time allocation, and a same frequency domain location.

37. The first node of claim 35 or 36, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sidelink signal resources, a time interval for one of the plurality of sidelink signal resources, and a number of sidelink signal sub-resources comprised by one of the plurality of sidelink signal resources.

38. The first node according to any of claims 35-37, wherein at least two of the plurality of sidelink signal resources correspond to a same transmission cycle, wherein the time allocations of the at least two sidelink signal resources are different, and/or wherein the frequency domain locations of the at least two sidelink signal resources are different.

39. The first node of any of claims 35-38, wherein the frequency domain location of any of the plurality of sidelink signal resources comprises an absolute frequency domain location of the sidelink signal resource or a frequency offset of the sidelink signal resource from a reference frequency domain location.

40. The first node according to any of claims 31-39, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identification supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class resource, or wherein the resource of the first sideline signal group is associated with the first class identification.

41. A second node for wireless communication, comprising:

a third receiver for receiving first information, the first information being used to determine a plurality of sidestream signal resources;

a fourth receiver for receiving at least one side signal of the first side signal group on the first side signal resource;

wherein the plurality of sidestream signal resources are associated with a plurality of first type identifications, a first identification being one of the plurality of first type identifications, the first identification being related to the first sidestream signal resources, the first identification being used to determine a first node transmitting the one or more sidestream signals.

42. The second node of claim 41, wherein the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment and sidelink beam management.

43. The second node according to claim 41 or 42, wherein the first set of side row signals comprises at least one side row signal, any side row signal of the first set of side row signals being a side row synchronization signal block.

44. The second node according to any of claims 41-43, comprising:

A fifth receiver for receiving the second information;

wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

45. The second node according to any of claims 41-44, wherein the first information comprises at least one of a transmission period, a time allocation and a frequency domain location, the at least one of a transmission period, the time allocation and the frequency domain location being used to determine the plurality of sidelobe signal resources.

46. The second node according to any of claims 41-45, wherein any of the plurality of sidelink signal resources comprises a plurality of sidelink signal sub-resources, each of the plurality of sidelink signal sub-resources corresponding to at least one of a same transmission cycle, a same time allocation, and a same frequency domain location.

47. The second node according to claim 45 or 46, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sidelink signal resources, a time interval for one of the plurality of sidelink signal resources, a number of sidelink signal sub-resources comprised by one of the plurality of sidelink signal resources.

48. The second node according to any of claims 45-47, wherein at least two of the plurality of sidelink signal resources correspond to a same transmission cycle, wherein the time allocations of the at least two sidelink signal resources are different, and/or wherein the frequency domain locations of the at least two sidelink signal resources are different.

49. The second node according to any of claims 45-48, wherein the frequency domain location of any of the plurality of sidelobe signal resources comprises an absolute frequency domain location of the sidelobe signal resource or a frequency offset of the sidelobe signal resource from a reference frequency domain location.

50. The second node according to any of claims 41-49, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identity supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class of resources, or wherein the resources of the first sideline signal group are associated with the first class identity.

51. A third node for wireless communication, comprising:

a second transmitter for transmitting first information, the first information being used to determine a plurality of sidestream signal resources;

wherein the plurality of sidestream signal resources are associated with a plurality of first type identifications, a first identification being one of the plurality of first type identifications, the first identification being associated with a first node receiving the first information, the first identification being used by the first node to determine a first sidestream signal resource from the plurality of sidestream signal resources to transmit a first sidestream signal group.

52. The third node of claim 51 wherein the first sidelink signal group is used for at least one of sidelink initial beam pairing, sidelink unicast link establishment and sidelink beam management.

53. The third node of claim 51 or 52 wherein the first set of side row signals includes at least one side row signal, any side row signal in the first set of side row signals being a side row synchronization signal block.

54. The third node according to any of claims 51-53, comprising:

a third transmitter for transmitting the second information;

Wherein the second information is used to indicate that the plurality of sidestream signal resources are associated with the plurality of first type identifications.

55. The third node of any of claims 51-54, wherein the first information comprises at least one of a transmission period, a time allocation, and a frequency domain location, the at least one of a transmission period, the time allocation, and the frequency domain location being used to determine the plurality of sidelobe signal resources.

56. The third node of any of claims 51-55, wherein any of the plurality of sidelink signal resources comprises a plurality of sidelink signal sub-resources, each of the plurality of sidelink signal sub-resources corresponding to at least one of a same transmission cycle, a same time allocation, and a same frequency domain location.

57. The third node of claim 55 or 56, wherein the first information comprises a plurality of time allocations, any one of the plurality of time allocations being used to indicate at least one of a time offset for one of the plurality of sideline signal resources, a time interval for one of the plurality of sideline signal resources, and a number of sideline signal sub-resources comprised by one of the plurality of sideline signal resources.

58. The third node according to any of claims 55-57, wherein at least two of the plurality of sidelink signal resources correspond to a same transmission cycle, wherein the time allocations of the at least two sidelink signal resources are different, and/or wherein the frequency domain locations of the at least two sidelink signal resources are different.

59. The third node of any of claims 55-58, wherein the frequency domain location of any of the plurality of sidelink signal resources comprises an absolute frequency domain location of the sidelink signal resource or a frequency offset of the sidelink signal resource from a reference frequency domain location.

60. The third node according to any of claims 51-59, wherein the first sideline signal group comprises at least one sideline synchronization signal block, wherein the node corresponding to the first class identification supports sideline initial beam pairing and/or sideline unicast link establishment and/or sideline beam management based on the sideline synchronization signal block, or wherein the at least one sideline synchronization signal block occupies a first class resource, or wherein the resource of the first sideline signal group is associated with the first class identification.

61. A node for wireless communication, comprising a transceiver, a memory for storing a program, and a processor for calling the program in the memory and controlling the transceiver to receive or transmit signals to cause the node to perform the method of any of claims 1-10 or 11-20 or 21-30.

62. An apparatus comprising a processor to invoke a program from memory to cause the apparatus to perform the method of any of claims 1-10 or 11-20 or 21-30.

63. A chip comprising a processor for calling a program from a memory, causing a device on which the chip is mounted to perform the method of any one of claims 1-10 or 11-20 or 21-30.

64. A computer-readable storage medium, having stored thereon a program that causes a computer to perform the method of any one of claims 1-10 or 11-20 or 21-30.

65. A computer program product comprising a program for causing a computer to perform the method of any one of claims 1-10 or 11-20 or 21-30.

66. A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1-10 or 11-20 or 21-30.