Resource indication method, apparatus and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communication, and provide a resource indication method, an apparatus and a storage medium. The resource indication method comprises: determining a reference signal resource in a reference signal dedicated resource pool, and on the basis of the determined reference signal resource, determining a reference signal resource set; and sending first information to a second node, wherein the first information is used for indicating for the second node the reference signal resource set and the reference signal resource in the reference signal resource set.

Description

Resource indication method, device and storage medium

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 14, 2023, with application number 202311724996.6 and titled “Resource Indication Method, Device and Storage Medium”. The entire contents of that application are incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a resource indication method, device, and storage medium. Background Art

[0004] A side-link communication system enables direct device-to-device communication. Terminals can communicate directly with each other without requiring a base station or network infrastructure for relay transmission. With its advantages of low latency, high bandwidth, high flexibility, and low overhead, side-link communication systems offer new possibilities and development potential for mobile networks.

[0005] In a sidelink communication system, a transmitting terminal needs to send a reference signal before or during communication to determine the communication beam on the unicast link between the transmitting and receiving terminals. Furthermore, the receiving terminal needs to be informed of the communication resources required to transmit the reference signal to ensure successful reception of the reference signal. However, there is currently no specific method for indicating these resources.

[0006] Therefore, how to indicate the communication resources required for transmitting the reference signal is an urgent problem to be solved.

[0007] Summary of the Invention

[0008] Embodiments of the present disclosure provide a resource indication method, device, and storage medium.

[0009] In a first aspect, a resource indication method is provided, which is applied to a first node, including: determining a reference signal resource in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resource; and sending first information to a second node, where the first information is used to indicate the reference signal resource set and the reference signal resources within the reference signal resource set to the second node.

[0010] According to a second aspect, another resource indication method is provided, which is applied to a second node, and includes: receiving first information sent by a first node, where the first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set, and the reference signal resource set includes reference signal resources determined by the first node from a reference signal resource pool; and determining the reference signal resource set and the reference signal resources within the reference signal resource set based on the first information.

[0011] According to a third aspect, a communication device is provided, comprising: a processing module for determining a reference signal resource in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resource; and a communication module for sending first information to a second node, the first information being used to indicate a reference signal resource set and reference signal resources within the reference signal resource set to the second node.

[0012] In a fourth aspect, another communication device is provided, including: a communication module for receiving first information sent by a first node, the first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set, the reference signal resource set including reference signal resources determined by the first node from a reference signal resource pool; a processing module for determining the reference signal resource set and the reference signal resources within the reference signal resource set based on the first information.

[0013] In a fifth aspect, a communication device is provided, comprising a processor, which implements the resource indication method of the first aspect or the resource indication method of the second aspect when executing a computer program.

[0014] In a sixth aspect, a computer-readable storage medium is provided, the computer-readable storage medium including computer instructions; wherein, when the computer instructions are executed, the resource indication method of the first aspect mentioned above is implemented, or the resource indication method of the second aspect mentioned above is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required for use in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure;

[0017] FIG2 is a flow chart of a resource indication method provided by an embodiment of the present disclosure;

[0018] FIG3 is a schematic diagram of the structure of a time slot in a reference signal dedicated resource pool provided by an embodiment of the present disclosure;

[0019] FIG4 is a schematic diagram of a reference signal type provided by an embodiment of the present disclosure;

[0020] FIG5 is a schematic structural diagram of a first reference signal resource provided by an embodiment of the present disclosure;

[0021] FIG6 is a schematic diagram of a reference signal resource provided by an embodiment of the present disclosure;

[0022] FIG7 is a flow chart of another resource indication method provided by an embodiment of the present disclosure;

[0023] FIG8 is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0024] FIG9 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure;

[0025] FIG10 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0027] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more. Words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not limit them to be necessarily different.

[0028] It should be noted that in this disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this disclosure as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0029] As described in the background technology, currently, there is no specific resource indication method in the edge link communication system. Based on this, the present disclosure provides a resource indication method. After the first node determines the reference signal resource in the reference dedicated resource pool, it determines the reference signal resource set based on the determined reference signal resource, which can effectively use the communication resources and improve the utilization rate of the communication resources. Immediately afterwards, the first node sends a first information for configuring the reference signal resource set and the reference signal resources within the reference signal resource set for the second node to indicate the communication resources required for the second node to transmit the reference signal through the first information, so as to ensure that the second node successfully receives the reference signal and improve the communication quality.

[0030] The resource indication method provided by the present disclosure can be applied to a communication system as shown in Figure 1, which shows a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the communication system includes a network-side device 10 and multiple terminals, such as terminal 20 and terminal 30.

[0031] In some embodiments, the network side device 10 can be a base station or evolved base station (eNB or eNodeB) in long term evolution (LTE), long term evolution advanced (LTE-A), a base station device in a 5G network, or a base station in a future communication system, etc. The base station can include various macro base stations, micro base stations, home base stations, wireless remote stations, reconfigurable intelligent surfaces (RIS), routers, wireless fidelity (WIFI) devices and other network side devices.

[0032] In some embodiments, the terminal can be a device with wireless transceiver capabilities, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water (such as a ship, etc.); it can also be deployed in the air (for example, on an airplane, a balloon, and a satellite, etc.). The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical care, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication equipment, UE agent or UE device, etc., but the embodiments of the present disclosure are not limited to this.

[0033] As shown in Figure 1, terminal 20 and terminal 30 are within the coverage of network-side device 10. When the link quality between terminal 20 and terminal 30 is good, terminal 20 can send data to terminal 30 through a side link instead of through network-side device 10, thereby enabling terminal 20 to communicate with terminal 30 through the side link. Terminal 20 is also called a transmitting terminal, and terminal 30 is also called a receiving terminal.

[0034] It should be noted that Figure 1 is only an exemplary framework diagram. The number of devices included in Figure 1 and the names of each device are not restricted. In addition to the devices shown in Figure 1, the communication system may also include other devices, such as core network devices.

[0035] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are intended to more clearly illustrate the technical solutions of the embodiments of the present disclosure and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It is known to those skilled in the art that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0036] It should be noted that the roles of the first node and the second node mentioned in this disclosure may vary depending on the communication scenario. For example, the first node may be terminal 20 or terminal 30, and the second node may also be terminal 20 or terminal 30. For ease of understanding, in the embodiments of this disclosure, the first node is terminal 20, and the second node is terminal 30.

[0037] FIG2 shows a flow chart of a resource indication method provided by the present disclosure. As shown in FIG2 , the resource indication method is applied to a first node and includes the following steps:

[0038] S101: Determine a reference signal resource in a reference signal dedicated resource pool, and determine a reference signal resource set based on the determined reference signal resource.

[0039] It should be noted that in the side link communication system, the reference signals transmitted by the transmitting terminal can be divided into two types: the first type is the reference signal located in the reference signal dedicated resource pool, and the second type is the reference signal located in the shared resource pool.

[0040] The reference signal dedicated resource pool includes reference signals, or includes reference signals and side-link control information (SCI) corresponding to the reference signals. The shared resource pool includes reference signals and other data channels, such as the physical side-link shared channel (PSSCH). The reference signals mentioned in this disclosure are reference signals in the reference signal dedicated resource pool.

[0041] As shown in Figure 3, a schematic diagram of the structure of a time slot in a reference signal dedicated resource pool provided in an embodiment of the present disclosure is provided. In a time slot, the frequency domain is divided into multiple physical side-link control channels (PSCCH). Among them, PSCCH occupies a group of physical resource blocks (PRBs) in the frequency domain and the first few symbols of the time slot. The time domain resources after PSCCH are used to send reference signals. In addition, a PSCCH channel is associated with a group of reference signal resources in the time slot, and the reference signal resources associated with different PSCCHs have an orthogonal relationship within the time slot.

[0042] In some embodiments, the first node may determine the reference signal resources in the reference signal dedicated resource pool based on scheduling information of the base station.

[0043] Exemplarily, the scheduling information sent by the base station to the first node includes time slots and other frequency domain resources required for sending the reference signal. The first node determines corresponding reference signal resources in the reference signal dedicated resource pool according to the scheduling information.

[0044] In some embodiments, the first node may determine the reference signal resource based on a sensing result of the first node in a reference signal dedicated resource pool.

[0045] It should be understood that the sensing capability of the first node and the size of the reference signal dedicated resource pool determine the reference signal resources that the first node can sense.

[0046] For example, the reference signal dedicated resource pool is large, the first node has limited sensing capability, and the sensing result only includes part of the reference signal resources in the reference signal dedicated resource pool. Next, the first node determines the required reference signal resources based on the sensing result.

[0047] In some embodiments, the first node may determine the reference signal resource by random selection from a reference signal dedicated resource pool.

[0048] For example, assuming that a dedicated reference signal resource pool includes 10 reference signal resources, the first node may randomly select one or more of the 10 reference signal resources as the corresponding reference signal resources. For example, the first node may generate a random number and select the corresponding reference signal resource based on the magnitude of the random number. When the random number is 3, the third reference signal resource is selected as the corresponding reference signal resource. When the random number is 5, the fifth reference signal resource is selected as the corresponding reference signal resource.

[0049] It should be understood that communication between the first node and the second node is accomplished via a unicast link between the first node and the second node. Before the first node and the second node can communicate, a unicast link must be established between the first node and the second node to facilitate subsequent communication. The reference signal resources sent by the first node before establishing the unicast link differ from those sent after establishing the unicast link. Therefore, the type of reference signal resources is determined based on the time before and after establishing the unicast link.

[0050] Specifically, as shown in Figure 4, which is a schematic diagram of a reference signal type provided by an embodiment of the present disclosure, reference signal resources are described in conjunction with Figure 4. Reference signal resources include at least one of the following: a first reference signal resource, a second reference signal resource, and a third reference signal resource.

[0051] 1. First reference signal resource.

[0052] The first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link. The first reference signal resource is a periodic resource or a semi-persistent resource.

[0053] Exemplarily, the first reference signal resource is a reference signal resource sent before the first node and the second node establish a unicast link. Before establishing the unicast link, the first node has not yet determined the target node with which to establish the unicast link. Therefore, the first reference signal resource can be a unicast reference signal resource or a broadcast reference signal resource. As shown in Figure 4, the first reference signal resource sent by the first node is a broadcast reference signal resource, and both the second node and the third node can receive the first reference signal resource.

[0054] It should be noted that the first reference signal resource is a reference signal resource sent by the first node before establishing a unicast link. Before establishing a unicast link, the first node has not yet determined the target node with which to establish a unicast link. Therefore, the first node needs to periodically or semi-persistently send the first reference signal resource to determine the second node with which to establish a unicast link. Therefore, the first reference signal resource is either a periodic resource or a semi-persistent resource.

[0055] 2. Second reference signal resource.

[0056] The second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link. The second reference signal resource is one of a periodic resource, an aperiodic resource, or a semi-persistent resource.

[0057] As shown in Figure 4, the second reference signal resource is a reference signal resource sent after the first node establishes a unicast link with the second node, and the second reference signal resource is only received by the second node. Therefore, the second reference signal resource is a unicast reference signal resource.

[0058] It should be noted that the second reference signal resource refers to the reference signal resource sent by the first node to the second node after the first node and the second node establish a unicast link. Because the unicast link has already been established, the second reference signal resource is only intended for the second node, and there is no need to send the second reference signal resource in a periodic or semi-persistent manner. Therefore, the second reference signal resource can be a periodic resource, an aperiodic resource, or a semi-persistent resource.

[0059] 3. Third reference signal resource.

[0060] The third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link. The third reference signal resource is one of a periodic resource, an aperiodic resource, or a semi-persistent resource.

[0061] It should be understood that in an edge link communication system, a transmitting terminal can establish a unicast link with multiple receiving terminals. As shown in Figure 4, the first node establishes a unicast link with a third node in addition to the second node. In practice, the first node may establish unicast links with a larger number of nodes, such as a fourth node, a fifth node, etc., which are not shown in Figure 4. For the relevant description of the reference signal resources sent by the first node after establishing a unicast link with the fourth node or the fifth node, please refer to the specific description of the third reference signal resource below, and this disclosure will not go into details here.

[0062] Therefore, the reference signal resources include the reference signal resources after the first node and the third node establish a unicast link.

[0063] As shown in FIG4 , the third reference signal resource is a reference signal resource after the first node and the third node establish a unicast link. The receiving target of the third reference signal resource is only the third node, so the third reference signal resource is a unicast link resource.

[0064] It should be noted that the third reference signal resource refers to the reference signal resource sent by the first node to the third node after the first node and the third node establish a unicast link. Because the unicast link has already been established, the third reference signal resource is only intended for the third node and does not need to be sent periodically or semi-persistently. Therefore, the third reference signal resource can be a periodic resource, an aperiodic resource, or a semi-persistent resource.

[0065] As can be seen from the above description of the reference signal resources, the reference signal resources include a first reference signal resource, a second reference signal resource, and a third reference signal resource.

[0066] Based on this, a reference signal resource set is determined based on the first reference signal resource, the second reference signal resource, and the third reference signal resource included in the determined reference signal resources.

[0067] As a possible implementation manner, the type of the reference signal resource in the reference signal resource determines the type of the corresponding reference signal resource set.

[0068] Exemplarily, the reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set, and a fourth reference signal resource set.

[0069] The first reference signal resource set corresponds to the first reference signal resource, the second reference signal resource set corresponds to the second reference signal resource, the third reference signal resource set corresponds to the third reference signal resource, and the fourth reference signal resource set corresponds to the second reference signal resource and the third reference signal resource.

[0070] It should be understood that when the first node sends a reference signal, the required reference signal resources are not all of the determined reference signal resources. Therefore, the reference signal resource set may include all or part of the reference signal resources.

[0071] Exemplarily, the first reference signal resource set includes all or part of the first reference signal resources; the second reference signal resource set includes all or part of the second reference signal resources; and the third reference signal resource set includes all or part of the third reference signal resources.

[0072] As another example, when multiple nodes are located and oriented close together, the reference signal resources required for reference signal transmission by the multiple nodes can be integrated into a single reference signal resource set. For example, when the second and third nodes are located and oriented close together, the reference signal resources required for reference signal transmission by the second and third nodes can be integrated into a fourth reference signal resource set. Therefore, the fourth reference signal resource set includes all or part of the second reference signal resources and all or part of the third reference signal resources.

[0073] In this way, the reference signal resources required by multiple nodes for transmitting reference signals are integrated into one reference signal resource set, which can reduce resource overhead and improve transmission efficiency.

[0074] It should be noted that the reference signal resources in the same reference signal resource set have the same periodic attribute, and each reference signal resource set corresponds to a source identifier of the first node.

[0075] It should be understood that since the first node may establish unicast links with multiple nodes, the reference signal resources include more than the above three reference signal resources. Correspondingly, the reference signal resource set also includes more than the above four reference signal resource sets.

[0076] S102: Send first information to the second node.

[0077] The first information is used to indicate the reference signal resource set and the reference signal resources within the reference signal resource set to the second node.

[0078] In some embodiments, the first node sends the first information to the second node in the data resource pool.

[0079] The data resource pool includes data, data signals and other related information.

[0080] Exemplarily, the first information is carried in at least one of proximity communication radio resource control (PC5 RRC) signaling or medium access control element (MAC control element, MAC CE).

[0081] In another exemplary embodiment, the first information includes at least one of the following: the time-frequency resource position of each reference signal resource in the reference signal resource set; the time-frequency resource position or control channel index of the control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; the period of the reference signal resource; the time slot offset within the period of the reference signal resource; the index of the reference signal resource; the source identifier corresponding to the reference signal resource; the position information of the starting time slot and the starting frequency domain of the reference signal in the non-periodic reference signal resource in the reference signal resource set; the reference signal resource in the activated state; Source set; index of each reference signal resource in the reference signal resource set; index of the reference signal resource used for beam measurement; index of the reference signal resource set; location information of time-frequency domain resources in the reference signal resource used for beam measurement; time-frequency location information or control channel index of the control channel associated with the reference signal resource used for beam measurement; location of the reference signal resource corresponding to the beam information in the data resource pool; index of the reference signal resource corresponding to the beam information in the data resource pool; carrier index of the reference signal dedicated resource pool; resource pool index of the reference signal dedicated resource pool; time-frequency resource configuration information of the reference signal dedicated resource pool.

[0082] As a possible implementation manner, when the first information indicates that the reference signal resource in the reference signal resource set indicated by the second node is a periodic resource, the first information is carried in PC5 RRC signaling.

[0083] Exemplarily, when the reference signal resource in the reference signal resource set indicated by the first information to the second node is a periodic resource, the first node notifies the second node of the time-frequency resource position corresponding to each reference signal resource in the reference signal resource set by sending the first information carried by PC5 RRC signaling.

[0084] As a possible implementation manner, when the first information indicates that the reference signal resource in the reference signal resource set indicated by the second node is a non-periodic resource, the first information is carried in a MAC CE.

[0085] Exemplarily, when the reference signal resource in the reference signal resource set indicated by the first information to the second node is a non-periodic resource, the first node notifies the second node of the time-frequency resource position of the reference signal resource in the reference signal dedicated resource pool by sending the first information carried on the MAC CE.

[0086] It should be noted that the first information can not only be used to indicate the reference signal resource set and the reference signal resources within the reference signal resource set for the second node (for example, the first node sends the first information in the data resource pool, and the first information is carried on the MCE CE, or, in the following text, the first node sends the first information in the reference signal dedicated resource pool, and the first information is carried on the SCI), but can also be used to configure the reference signal resource set and the reference signal resources within the reference signal resource set for the second node (for example, the first node sends the first information in the data resource pool, and the first information is carried on the PC5 RRC signaling), and can also be carried in the PC5 RRC signaling, as well as the MAC CE or SCI at the same time to configure and indicate the reference signal resource set for the second node.

[0087] Exemplarily, after the first node establishes a unicast link with the second node, the first node can configure the reference signal resources in a quasi co-location (QCL) relationship between the second node and the spatial beam by sending a first message carried in PC5RRC signaling or MAC CE.

[0088] Exemplarily, when the first information is carried in both PC5 RRC signaling and MAC CE, the first node sends the first information to the second node. The first information carried in the PC5 RRC signaling is used to configure multiple reference signal resource sets for the second node, and the first information carried in the MAC CE is used to indicate a currently used reference signal resource set for the second node. Furthermore, the first information carried in the MAC CE may also indicate, based on the indicated currently used reference signal resource set, reference signal resources corresponding to the default QCL beam spatial relationship (type D) on the side link, as well as reference signal resources corresponding to multiple available QCL type Ds.

[0089] As a possible implementation manner, the first node may further indicate information of a reference signal resource used for measurement to the second node based on the first information.

[0090] The measurement includes at least one of the following: link measurement, beam measurement, and channel measurement. For example, the link measurement may be radio link monitoring (RLM), and the beam measurement may be beam failure detection (BFD). The reference signal resource used for the measurement is configured based on at least one of a first reference signal resource, a second reference signal resource, and a third reference signal resource.

[0091] Exemplarily, the first node may send first information to directly indicate the time-frequency resource location corresponding to the reference signal resource used for measurement, and indicate the source ID corresponding to the reference signal resource used for measurement to the second node based on the first information. Alternatively, the first node may send first information to configure a reference signal resource set corresponding to the reference signal resource used for measurement for the second node, and indicate the index of the reference signal resource used for measurement in the reference signal resource set to the second node based on the first information.

[0092] In another exemplary embodiment, the first node sends a resource request to the base station before establishing a unicast link with the second node. After receiving the resource request sent by the first node, the base station sends scheduling information to the first node, so that the first node determines the time-frequency position of the first reference signal resource in the reference signal dedicated resource pool based on the scheduling information. As shown in Figure 5, it is a structural diagram of the first reference signal resource determined by the first node. During the transmission period of the first reference signal resource, a total of 8 reference signal resources are included, namely RS1, RS2, RS3, RS4, RS5, RS6, RS7, and RS8, which are located in 2 time slots, and the resource transmission period is P. Before the first node and the second node establish a unicast link, these 8 reference signal resources are periodically sent.

[0093] After a unicast link is established between a first node and a second node, the first node configures a reference signal resource set for the second node by sending first information carried in PC5 RRC signaling. The reference signal resource set includes {RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8}. The first information also includes a time domain resource location and a frequency domain resource location corresponding to each reference signal resource, as well as a source identifier corresponding to the reference signal resource set.

[0094] In another exemplary embodiment, the first node may also configure the default beam on the unicast link established by the first node and the second node in the data resource pool through the reference signal resource set described in the above example. For example, the first node sends the first information carried by PC5 RRC signaling or MAC CE to indicate to the second node that RS3 is the reference signal resource associated with the default QCL type D of the physical side-link control channel (PSCCH) or the physical side-link shared channel (PSSCH). Therefore, after the first node and the second node establish a unicast link, during the communication process between the second node and the first node, if the spatial receiving beam of the PSCCH or PSSCH cannot be obtained in advance, the spatial beam corresponding to RS3 is used to receive the PSCCH or PSSCH transmitted by the first node.

[0095] In another exemplary embodiment, the first node may also configure a communication beam on a unicast link established between the first node and the second node in a data resource pool using the reference signal resource set described in the above example. For example, the first node may send first information carried in PC5 RRC signaling or MAC CE to configure four reference signal resources {RS2, RS4, RS5, RS7} for the second node to use in data communication between the first node and the second node.

[0096] In another exemplary embodiment, the first node may also configure beam measurement resources on the unicast link established between the first node and the second node in the data resource pool using the reference signal resource set described in the above example. For example, the first node sends first information carried in PC5 RRC signaling or MAC CE to configure four reference signal resources {RS1, RS2, RS3, RS4} for the second node to use as reference signal resources for BFD during data communication between the first node and the second node. Accordingly, the second node uses the reference signal resources for BFD to determine whether a beam failure has occurred on the unicast link.

[0097] In another exemplary embodiment, after the first node establishes a unicast link with the second node, the first node determines two periodic second reference signal resources based on the first node's sensing result in the reference signal dedicated resource pool, namely the second reference signal resource of period 1 and the second reference signal resource of period 2. The reference signal resource set 1 configured by the first node based on the second reference signal resource of period 1 includes {RS2, RS4, R6, RS8}, and the reference signal resource set 1 includes the time domain resource position, frequency domain resource position and source identifier corresponding to each reference signal resource. The reference signal resource set 2 configured by the first node based on the second reference signal resource of period 2 includes {RS1, RS2, R3, RS4}. It should be noted that RS2 in the reference signal resource set 1 is not the same as RS2 in the reference signal resource set 2, and their corresponding numbers are determined based on the second reference signal resource corresponding to the reference signal resource set.

[0098] In another exemplary embodiment, based on the above example, the first node configures RS2 in reference signal resource set 1 as the reference signal resource corresponding to the default beam in the data resource pool for the second node by sending first information carried in PC5 RRC signaling or MAC CE. Alternatively, all reference signal resources in reference signal resource set 1 are configured for the second node as reference signal resources corresponding to the dynamic indicator beam.

[0099] In another example, based on the above example, the first node configures RS1 and RS2 in reference signal resource set 2 for the second node as reference signal resources for BFD by sending the first information carried by PC5 RRC signaling or MAC CE, and configures RS3 and RS4 in reference signal resource set 2 for the second node as reference signal resources for beam failure recovery (BFR).

[0100] In another example, before establishing a link with the second node, the first node determines a non-periodic second reference signal resource, and the second reference signal resource includes 8 reference signal resources, which are located in 2 different time slots, and each time slot contains 4 reference signal resources. The reference signal resource set configured by the first node based on the second reference signal resource includes {RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8}.

[0101] In another exemplary embodiment, based on the above example, the first node configures eight reference signal resources from the reference signal resource set for the second node by sending first information carried in PC5 RRC signaling or MAC CE as reference signal resources for beam training in the data resource pool of the first and second nodes. Furthermore, the first information carried in the MAC CE may also indicate the time domain resource locations and frequency domain resource locations of the eight reference signal resources to the second node. Accordingly, after receiving the first information, the second node performs beam training based on the reference signal resources for beam training indicated in the first information.

[0102] It should be understood that the reference signal resources determined by the first node before and after establishing a unicast link with the second node may be different, and the source identifier and destination identifier carried in the first information and the reference signal resource PSCCH may also be different. Figure 6 shows a schematic diagram of the reference signal resources before and after the first node establishes a unicast link with the second node. In Figure 6, the reference signal resources in period P1 are different from the reference signal resources in period P2.

[0103] It should be noted that, for the relevant description of configuring the reference signal resource set based on the third reference signal resource, and configuring or indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node, reference can be made to the above-mentioned specific description of configuring the reference signal resource set based on the second reference signal resource, and configuring or indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node, which will not be repeated in this disclosure.

[0104] In some embodiments, the first node sends the first information to the second node in a reference signal dedicated resource pool.

[0105] The first information is carried in spatial channel information (SCI). The first information includes at least one of the following: beam repetition on / off status; reference signal period indication information; frequency resource assignment + time resource assignment indication information for control channels in other time slots within the reference signal period; source identifier; destination identifier; number of beams or reference signals transmitted periodically or aperiodically; starting index of beams or reference signals in the current time slot; and number of beams or reference signals in the current time slot.

[0106] It should be noted that before a first node establishes a unicast link with a second node, the location information of the reference signal resources obtained by the first node cannot be notified to the second node in advance. Therefore, the second node needs to perform a blind detection in the reference signal dedicated resource pool and determine the location information of the reference signal resources before establishing the unicast link with the first node based on the first information carried in the PSCCH associated with the blindly detected reference signal resources.

[0107] Exemplarily, when a first node transmits a reference signal in a time slot in a reference signal dedicated resource pool, the first node sends first information carried on SCI to a second node to indicate to the second node the reference signal resource set corresponding to the reference signal and the reference signal resources in the reference signal resource set.

[0108] As another example, the reference signal resource sent by the first node before establishing a link with the second node may indicate the time-frequency resource location information and period information of the reference signal resource to the second node by sending the first information carried in the SCI.

[0109] As another example, the first node can transmit up to four beams in one time slot in the reference signal dedicated resource pool. However, if the first node needs to transmit eight beams, as shown in FIG4 , the second node can select the PSCCH and associated reference signals in two time slots in the reference signal dedicated resource pool.

[0110] As a possible implementation manner, the first node may indicate spatial beam information of a channel or signal in the data resource pool to the second node based on the first information.

[0111] Exemplarily, after a first node indicates a reference signal resource to a second node, the first node may indicate spatial beam information of current data or future data to the second node based on the first information carried in the SCI. The spatial beam of the current data or future data is the same as the spatial beam of the reference signal resource having a QCL relationship indicated by the first information carried in the SCI.

[0112] As another example, when a first node configures four reference signal resources {RS2, RS4, RS5, RS7} for a second node for use in data communication between the first and second nodes, the first node may indicate the current or future data communication beam based on the first information carried in the SCI. For example, 00 corresponds to RS2, 01 corresponds to RS4, 10 corresponds to RS5, and 11 corresponds to RS7. If the bits indicated by the first node based on the first information carried in the SCI are 00, this indicates that the communication beam in the reference signal resources of the current or future time slot is the spatial beam corresponding to RS2.

[0113] It should be noted that the reference signal in the embodiment of the present disclosure may be a channel state information reference signal (CSI-RS) or other reference signal, and the present disclosure is not limited thereto. The signaling related to the first node and the second node in the embodiment of the present disclosure may be obtained through configuration, for example, it may be network configuration, the first node may configure the second node, and the second node may configure the first node. Alternatively, it may be obtained through pre-configuration, and the present disclosure is not limited thereto. The reference signal dedicated resource pool and the data resource pool in the present disclosure may be configured through the network or pre-configured, and the present disclosure is not limited thereto.

[0114] In this way, after the first node determines the reference signal resources in the reference dedicated resource pool, it determines a reference signal resource set based on the determined reference signal resources, effectively utilizing communication resources and improving communication resource utilization. Subsequently, the first node transmits first information to the second node, indicating the reference signal resource set and the reference signal resources within the reference signal resource set. This first information indicates the communication resources required for the second node to transmit the reference signal, thereby ensuring that the second node successfully receives the reference signal and improving communication quality.

[0115] FIG7 shows a schematic flow chart of a resource indication method provided by the present disclosure. As shown in FIG7 , the resource indication method is applied to the second node and includes the following steps:

[0116] S201: Receive first information sent by a first node.

[0117] The first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set, and the reference signal resource set includes reference signal resources determined by the first node from a reference signal resource pool.

[0118] In some embodiments, the reference signal resource includes at least one of the following: a first reference signal resource, a second reference signal resource, and a third reference signal resource.

[0119] The first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link. The first reference signal resource is a periodic resource or a semi-persistent resource. The second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link. The second reference signal resource is a periodic resource, an aperiodic resource, or a semi-persistent resource. The third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link. The third reference signal resource is a periodic resource, an aperiodic resource, or a semi-persistent resource.

[0120] In some embodiments, the reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set, and a fourth reference signal resource set.

[0121] Among them, the first reference signal resource set includes all or part of the resources of the first reference signal resources; the second reference signal resource set includes all or part of the resources of the second reference signal resources; the third reference signal resource set includes all or part of the resources of the third reference signal resources; the fourth reference signal resource set includes all or part of the resources of the second reference signal resources and all or part of the resources of the third reference signal resources.

[0122] S202: Determine a reference signal resource set and reference signal resources within the reference signal resource set based on the first information.

[0123] In some embodiments, the second node receives the first information sent by the first node in the data resource pool.

[0124] The first information is carried in at least one of PC5 RRC signaling or MAC CE. The first information includes at least one of the following: the time-frequency resource position of each reference signal resource in the reference signal resource set; the time-frequency resource position or control channel index of the control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; the period of the reference signal resource; the time slot offset within the period of the reference signal resource; the index of the reference signal resource; the source identifier corresponding to the reference signal resource; the starting time slot position information and starting frequency domain position information of the reference signal in the non-periodic reference signal resource in the reference signal resource set; the reference signal resource set in an activated state; the index of each reference signal resource in the reference signal resource set; the index of the reference signal resource used for beam measurement; the index of the reference signal resource set; the position information of the time-frequency domain resources in the reference signal resource used for beam measurement; the time-frequency position information or control channel index of the control channel associated with the reference signal resource used for beam measurement; the position of the reference signal resource corresponding to the beam information in the data resource pool; the index of the reference signal resource corresponding to the beam information in the data resource pool; the carrier index of the reference signal dedicated resource pool; the resource pool index of the reference signal dedicated resource pool; and the time-frequency resource configuration information of the reference signal dedicated resource pool.

[0125] As a possible implementation manner, the second node determines information of a reference signal resource for measurement based on the first information and an instruction of the first node.

[0126] The measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

[0127] In some embodiments, the second node receives the first information sent by the first node in a reference signal dedicated resource pool.

[0128] The first information is carried in the SCI and includes at least one of the following: beam repetition on-state; reference signal period indication information; control channel resource location indication information in other time slots within the reference signal period; source identifier; destination identifier; number of beams or reference signals transmitted periodically or aperiodically; starting index of the beam or reference signal in the current time slot; and number of beams or reference signals in the current time slot.

[0129] As a possible implementation manner, the second node determines spatial beam information of a channel or signal in the data resource pool based on the first information and an instruction of the first node.

[0130] In this way, after the first node determines the reference signal resources in the reference dedicated resource pool, it determines a reference signal resource set based on the determined reference signal resources, effectively utilizing communication resources and improving communication resource utilization. Subsequently, the first node transmits first information to the second node, indicating the reference signal resource set and the reference signal resources within the reference signal resource set. This first information indicates the communication resources required for the second node to transmit the reference signal, thereby ensuring that the second node successfully receives the reference signal and improving communication quality.

[0131] It is understandable that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. It should be readily apparent to those skilled in the art that, in conjunction with the algorithmic steps of the various examples described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0132] The embodiments of the present disclosure can divide the functional modules of the communication device according to the above-mentioned method embodiments. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated modules can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical functional division. In actual implementation, there may be other division methods. The following is an example of dividing each functional module corresponding to each function.

[0133] FIG8 is a schematic diagram of a communication device applied to a first node according to an embodiment of the present disclosure. The communication device 80 can execute the resource indication method provided in the above method embodiment. As shown in FIG8 , the communication device 80 includes a processing module 801 and a communication module 802 .

[0134] The processing module 801 is configured to determine a reference signal resource in a reference signal dedicated resource pool, and determine a reference signal resource set based on the determined reference signal resource.

[0135] The communication module 802 is configured to send first information to the second node, where the first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set to the second node.

[0136] In some embodiments, the processing module 801 is specifically used to: determine the reference signal resources in the reference signal dedicated resource pool based on the scheduling information of the base station; or, determine the reference signal resources based on the perception result of the first node in the reference signal dedicated resource pool; or, determine the reference signal resources in the reference signal dedicated resource pool by random selection.

[0137] In some embodiments, the communication module 802 is specifically configured to send the first information to the second node in the data resource pool.

[0138] In some embodiments, the first information is carried in at least one of PC5 RRC signaling or MAC CE.

[0139] In some embodiments, the first information includes at least one of the following: the time-frequency resource position of each reference signal resource in the reference signal resource set; the time-frequency resource position or control channel index of the control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; the period of the reference signal resource; the time slot offset within the period of the reference signal resource; the index of the reference signal resource; the source identifier corresponding to the reference signal resource; the starting time slot position information and the starting frequency domain position information of the reference signal in the non-periodic reference signal resource in the reference signal resource set; the reference signal in the activated state Resource set; index of each reference signal resource in the reference signal resource set; index of the reference signal resource used for beam measurement; index of the reference signal resource set; location information of time-frequency domain resources in the reference signal resource used for beam measurement; time-frequency location information or control channel index of the control channel associated with the reference signal resource used for beam measurement; location of the reference signal resource corresponding to the beam information in the data resource pool; index of the reference signal resource corresponding to the beam information in the data resource pool; carrier index of the reference signal dedicated resource pool; resource pool index of the reference signal dedicated resource pool; time-frequency resource configuration information of the reference signal dedicated resource pool.

[0140] In some embodiments, the communication module 802 is further used to: based on the first information, indicate to the second node information of reference signal resources used for measurement, where the measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

[0141] In some embodiments, the reference signal dedicated resource pool and the data resource pool are network configured or pre-configured.

[0142] In some embodiments, the communication module 802 is specifically configured to: send the first information to the second node in a reference signal dedicated resource pool.

[0143] In some embodiments, the first information is carried in the SCI.

[0144] In some embodiments, the first information includes at least one of the following: the on state of beam repetition; period indication information of the reference signal; indication information of the resource location of the control channel in other time slots within the period of the reference signal; source identification; destination identification; the number of beams or reference signals transmitted periodically or non-periodically; the starting index of the beam or reference signal in the current time slot; the number of beams or reference signals in the current time slot.

[0145] In some embodiments, the communication module 802 is further configured to: indicate spatial beam information of a channel or signal in the data resource pool to the second node based on the first information.

[0146] In some embodiments, the reference signal resource includes at least one of the following: a first reference signal resource, a second reference signal resource, and a third reference signal resource; wherein the first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link; the second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link; and the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link.

[0147] In some embodiments, the first reference signal resource is a periodic resource or a semi-persistent resource; the second reference signal resource is a periodic resource, a non-periodic resource or a semi-persistent resource; and the third reference signal resource is a periodic resource, a non-periodic resource or a semi-persistent resource.

[0148] In some embodiments, the reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set, and a fourth reference signal resource set; wherein the first reference signal resource set includes all or part of the resources of the first reference signal resources; the second reference signal resource set includes all or part of the resources of the second reference signal resources; the third reference signal resource set includes all or part of the resources of the third reference signal resources; and the fourth reference signal resource set includes all or part of the resources of the second reference signal resources and all or part of the resources of the third reference signal resources.

[0149] FIG9 is a schematic diagram of a communication device applied to a second node according to an embodiment of the present disclosure. As shown in FIG9 , the communication device 90 includes a communication module 901 and a processing module 902 .

[0150] The communication module 901 is used to receive first information sent by a first node, where the first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set. The reference signal resource set includes reference signal resources determined by the first node in a reference signal resource pool.

[0151] The processing module 902 is configured to determine a reference signal resource set and reference signal resources within the reference signal resource set based on the first information.

[0152] In some embodiments, the communication module 901 is specifically configured to receive first information sent by a first node in a data resource pool.

[0153] In some embodiments, the first information is carried in at least one of PC5 RRC signaling or MAC CE.

[0154] In some embodiments, the first information includes at least one of the following: the time-frequency resource position of each reference signal resource in the reference signal resource set; the time-frequency resource position or control channel index of the control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; the period of the reference signal resource; the time slot offset within the period of the reference signal resource; the index of the reference signal resource; the source identifier corresponding to the reference signal resource; the starting time slot position information and the starting frequency domain position information of the reference signal in the non-periodic reference signal resource in the reference signal resource set; the reference signal in the activated state Resource set; index of each reference signal resource in the reference signal resource set; index of the reference signal resource used for beam measurement; index of the reference signal resource set; location information of time-frequency domain resources in the reference signal resource used for beam measurement; time-frequency location information or control channel index of the control channel associated with the reference signal resource used for beam measurement; location of the reference signal resource corresponding to the beam information in the data resource pool; index of the reference signal resource corresponding to the beam information in the data resource pool; carrier index of the reference signal dedicated resource pool; resource pool index of the reference signal dedicated resource pool; time-frequency resource configuration information of the reference signal dedicated resource pool.

[0155] In some embodiments, the communication module 901 is further used to: determine information of reference signal resources used for measurement based on the first information and the indication of the first node, where the measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

[0156] In some embodiments, the reference signal dedicated resource pool and the data resource pool are network configured or pre-configured.

[0157] In some embodiments, the communication module 901 is specifically configured to: receive first information sent by a first node in a reference signal dedicated resource pool.

[0158] In some embodiments, the first information is carried in the SCI.

[0159] In some embodiments, the first information includes at least one of the following: the on state of beam repetition; period indication information of the reference signal; indication information of the resource location of the control channel in other time slots within the period of the reference signal; source identification; destination identification; the number of beams or reference signals transmitted periodically or non-periodically; the starting index of the beam or reference signal in the current time slot; the number of beams or reference signals in the current time slot.

[0160] In some embodiments, the communication module 901 is further configured to determine spatial beam information of a channel or signal in the data resource pool based on the first information and an instruction from the first node.

[0161] In some embodiments, the reference signal resource includes at least one of the following: a first reference signal resource, a second reference signal resource, and a third reference signal resource; wherein the first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link; the second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link; and the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link.

[0162] In some embodiments, the first reference signal resource is a periodic resource or a semi-persistent resource; the second reference signal resource is a periodic resource, a non-periodic resource or a semi-persistent resource; and the third reference signal resource is a periodic resource, a non-periodic resource or a semi-persistent resource.

[0163] In some embodiments, the reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set, and a fourth reference signal resource set; wherein the first reference signal resource set includes all or part of the resources of the first reference signal resources; the second reference signal resource set includes all or part of the resources of the second reference signal resources; the third reference signal resource set includes all or part of the resources of the third reference signal resources; and the fourth reference signal resource set includes all or part of the resources of the second reference signal resources and all or part of the resources of the third reference signal resources.

[0164] In the case of implementing the functions of the above-mentioned integrated modules in hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. As shown in Figure 10, the communication device 100 includes: a processor 1002 and a bus 1004. Optionally, the communication device 100 may also include a memory 1001; optionally, the communication device 100 may also include a communication interface 1003.

[0165] Processor 1002 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1002 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of this disclosure. Processor 1002 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0166] The communication interface 1003 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, or wireless local area network (WLAN).

[0167] The memory 1001 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0168] As a possible implementation, the memory 1001 can exist independently of the processor 1002. The memory 1001 can be connected to the processor 1002 via a bus 1004 to store instructions or program codes. When the processor 1002 calls and executes the instructions or program codes stored in the memory 1001, the resource indication method provided in the embodiment of the present disclosure can be implemented.

[0169] In another possible implementation, the memory 1001 may also be integrated with the processor 1002 .

[0170] Bus 1004 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 1004 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG10 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0171] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium), which stores computer program instructions. When the computer program instructions are executed on a computer, the computer executes the resource indication method of any of the above embodiments.

[0172] Exemplarily, the computer-readable storage media may include, but are not limited to, magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0173] An embodiment of the present disclosure provides a computer program product comprising instructions. When the computer program product is run on a computer, the computer is enabled to execute the resource indication method described in any one of the above embodiments.

[0174] The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A resource indication method, applied to a first node, the method comprising: Determine a reference signal resource in a reference signal dedicated resource pool, and determine a reference signal resource set based on the determined reference signal resource; First information is sent to the second node, where the first information is used to indicate the reference signal resource set and the reference signal resources within the reference signal resource set to the second node.

2. The method according to claim 1, wherein: The determining of the reference signal resource in the reference signal dedicated resource pool includes: determining the reference signal resource in the reference signal dedicated resource pool based on scheduling information of a base station; or, Determine the reference signal resource based on the perception result of the first node in the reference signal dedicated resource pool; or, The reference signal resource is determined in the reference signal dedicated resource pool by random selection.

3. The method according to claim 1, wherein: The sending the first information to the second node includes: The first information is sent to the second node in a data resource pool.

4. The method according to claim 3, wherein: The first information is carried in at least one of proximity communication radio resource control PC5 RRC signaling or medium access control element MAC CE.

5. The method according to claim 3, wherein: The first information includes at least one of the following: The time-frequency resource position of each reference signal resource in the reference signal resource set; A time-frequency resource position or a control channel index of a control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; a period of the reference signal resource; A time slot offset within a period of the reference signal resource; An index of the reference signal resource; A source identifier corresponding to the reference signal resource; Position information of the starting time slot and the starting frequency domain of the reference signal in the non-periodic reference signal resource in the reference signal resource set; A set of reference signal resources in an activated state; An index of each reference signal resource in the reference signal resource set; An index of the reference signal resource used for beam measurement; An index of the reference signal resource set; Location information of time-frequency domain resources in reference signal resources used for beam measurement; The time-frequency position information or control channel index of the control channel associated with the reference signal resource used for beam measurement; The location of the reference signal resource corresponding to the beam information in the data resource pool; An index of a reference signal resource corresponding to the beam information in the data resource pool; A carrier index of the reference signal dedicated resource pool; A resource pool index of the reference signal dedicated resource pool; The time-frequency resource configuration information of the reference signal dedicated resource pool.

6. The method according to claim 3, wherein: The method further comprises: Based on the first information, information of reference signal resources used for measurement is indicated to the second node, and the measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

7. The method according to claim 3, wherein: The reference signal dedicated resource pool and the data resource pool are network configured or pre-configured.

8. The method according to claim 1, wherein: The sending the first information to the second node includes: The first information is sent to the second node in the reference signal dedicated resource pool.

9. The method according to claim 8, wherein: The first information is carried in the side link control information SCI.

10. The method according to claim 8, wherein: The first information includes at least one of the following: The on state of beam repetition; Period indication information of the reference signal; Indicative information of resource locations of control channels in other time slots within the period of the reference signal; Source identification; Purpose identification; The number of beams or reference signals transmitted periodically or aperiodically; The starting index of the beam or reference signal in the current time slot; The number of beams or reference signals in the current time slot.

11. The method according to claim 8, wherein: The method further comprises: Based on the first information, spatial beam information of a channel or a signal in a data resource pool is indicated to the second node.

12. The method according to claim 1, wherein: The reference signal resource includes at least one of the following: a first reference signal resource, a second reference signal resource and a third reference signal resource; wherein the first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link; the second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link; and the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link.

13. The method according to claim 12, wherein: The first reference signal resource is one of a periodic resource and a semi-persistent resource; The second reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource; The third reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource.

14. The method according to claim 12, wherein: The reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set and a fourth reference signal resource set; wherein the first reference signal resource set includes all or part of the resources of the first reference signal resources; the second reference signal resource set includes all or part of the resources of the second reference signal resources; the third reference signal resource set includes all or part of the resources of the third reference signal resources; the fourth reference signal resource set includes all or part of the resources of the second reference signal resources and all or part of the resources of the third reference signal resources.

15. A resource indication method, applied to a second node, the method comprising: receiving first information sent by a first node, where the first information is used to indicate a reference signal resource set and reference signal resources within the reference signal resource set, where the reference signal resource set includes reference signal resources determined by the first node in a reference signal dedicated resource pool; Based on the first information, the reference signal resource set and the reference signal resources within the reference signal resource set are determined.

16. The method according to claim 15, wherein: The receiving first information sent by the first node includes: The first information sent by the first node is received in a data resource pool.

17. The method according to claim 16, wherein: The first information is carried in at least one of PC5 RRC signaling or MAC CE.

18. The method according to claim 16, wherein: The first information includes at least one of the following: The time-frequency resource position of each reference signal resource in the reference signal resource set; A time-frequency resource position or a control channel index of a control channel associated with each reference signal resource in the reference signal resource set; the number of reference signal resources in the reference signal resource set; a period of the reference signal resource; A time slot offset within a period of the reference signal resource; An index of the reference signal resource; A source identifier corresponding to the reference signal resource; Position information of the starting time slot and the starting frequency domain of the reference signal in the non-periodic reference signal resource in the reference signal resource set; A reference signal resource set in an activated state; An index of each reference signal resource in the reference signal resource set; An index of the reference signal resource used for beam measurement; An index of the reference signal resource set; Location information of time-frequency domain resources in reference signal resources used for beam measurement; The time-frequency position information or control channel index of the control channel associated with the reference signal resource used for beam measurement; The location of the reference signal resource corresponding to the beam information in the data resource pool; An index of a reference signal resource corresponding to the beam information in the data resource pool; A carrier index of the reference signal dedicated resource pool; A resource pool index of the reference signal dedicated resource pool; The time-frequency resource configuration information of the reference signal dedicated resource pool.

19. The method according to claim 16, wherein: The method further comprises: Based on the first information and the indication of the first node, information of reference signal resources used for measurement is determined, and the measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

20. The method according to claim 16, wherein: The reference signal dedicated resource pool and the data resource pool are network configured or pre-configured.

21. The method according to claim 15, wherein: The receiving first information sent by the first node includes: The first information sent by the first node is received in the reference signal dedicated resource pool.

22. The method according to claim 21, wherein: The first information is carried in the SCI.

23. The method according to claim 21, wherein: The first information includes at least one of the following: The on state of beam repetition; Period indication information of the reference signal; Indicative information of resource locations of control channels in other time slots within the period of the reference signal; Source identification; Purpose identification; The number of beams or reference signals transmitted periodically or aperiodically; The starting index of the beam or reference signal in the current time slot; The number of beams or reference signals in the current time slot.

24. The method according to claim 21, wherein: The method further comprises: Based on the first information and the instruction of the first node, spatial beam information of a channel or a signal in a data resource pool is determined.

25. The method of claim 15, wherein: The reference signal resource includes at least one of the following: a first reference signal resource, a second reference signal resource and a third reference signal resource; wherein the first reference signal resource is a unicast or broadcast reference signal resource before the first node and the second node establish a unicast link; the second reference signal resource is a unicast reference signal resource after the first node and the second node establish a link; and the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link.

26. The method according to claim 25, wherein: The first reference signal resource is one of a periodic resource and a semi-persistent resource; The second reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource; The third reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource.

27. The method according to claim 25, wherein: The reference signal resource set includes at least one of the following: a first reference signal resource set, a second reference signal resource set, a third reference signal resource set and a fourth reference signal resource set; wherein the first reference signal resource set includes all or part of the resources of the first reference signal resources; the second reference signal resource set includes all or part of the resources of the second reference signal resources; the third reference signal resource set includes all or part of the resources of the third reference signal resources; the fourth reference signal resource set includes all or part of the resources of the second reference signal resources and all or part of the resources of the third reference signal resources.

28. A communication device, comprising a processor, wherein when the processor executes a computer program, the processor implements the resource indication method according to any one of claims 1 to 14, or implements the resource indication method according to any one of claims 15 to 27.

29. A computer-readable storage medium comprising computer instructions; wherein: When the computer instructions are executed, the resource indication method as described in any one of claims 1 to 14 is implemented, or the resource indication method as described in any one of claims 15 to 27 is implemented.

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