WO2025123785A1 - Resource indication method, apparatus and storage medium - Google Patents

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

Cross-references

This application claims priority to a Chinese patent application filed with the China Patent Office on December 14, 2023, with application number 202311724996.6 and title “Resource Indication Method, Device and Storage Medium”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present disclosure relates to the field of communication technology, and in particular to a resource indication method, device and storage medium.

Background Art

The side-link communication system is a direct device-to-device communication system. In it, each terminal can communicate directly with each other without the need for base stations or network infrastructure to relay transmission. The side-link communication system has the advantages of low latency, high bandwidth, high flexibility and low burden, providing more possibilities and development space for mobile networks.

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 terminal and the receiving terminal. In addition, it is also necessary to indicate the communication resources required for the receiving terminal to transmit the reference signal to ensure that the receiving terminal successfully receives the reference signal. However, there is currently no specific resource indication method.

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

Summary of the invention

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

In a first aspect, a resource indication method is provided, which is applied to a first node, comprising: 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, wherein the first information is used to indicate a reference signal resource set and a reference signal resource within the reference signal resource set to the second node.

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, the first information being 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; and determining the reference signal resource set and the reference signal resources within the reference signal resource set based on the first information.

According to a third aspect, a communication device is provided, comprising: a processing module, 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; and a communication module, configured to send first information to a second node, wherein the first information is used to indicate a reference signal resource set and a reference signal resource within the reference signal resource set to the second node.

In a fourth aspect, another communication device is provided, comprising: a communication module, configured to receive a first signal sent by a first node; The first information is used to indicate a reference signal resource set and a reference signal resource 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 is used to determine the reference signal resource set and the reference signal resources within the reference signal resource set based on the first information.

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

In a sixth aspect, a computer-readable storage medium is provided, the computer-readable storage medium comprising 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

In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

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

FIG2 is a schematic diagram of a flow chart of a resource indication method provided by an embodiment of the present disclosure;

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;

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

FIG5 is a schematic diagram of the structure of a first reference signal resource provided by an embodiment of the present disclosure;

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

FIG7 is a flow chart of another resource indication method provided in an embodiment of the present disclosure;

FIG8 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure;

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

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

DETAILED DESCRIPTION

The following will be combined with the 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 described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

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 three relationships may exist. 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 "plurality" means two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

It should be noted that in the present disclosure, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present disclosure as "exemplary" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of "exemplary" or "for example" Words such as these are intended to present related concepts in a concrete way.

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. Next, the first node sends to the second node first information for configuring the reference signal resource set and the reference signal resources in the reference signal resource set for the second node, and indicates 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.

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.

In some embodiments, the network side device 10 can be a base station or an 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.

In some embodiments, the terminal may be a device with wireless transceiver function, which may be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it may also be deployed on the water surface (such as ships, etc.); it may also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal may be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, 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, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present disclosure do not limit the application scenarios. A 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.

As shown in FIG1 , 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, so that terminal 20 can 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.

It should be noted that FIG1 is only an exemplary framework diagram, and the number of devices included in FIG1 and the names of the devices are not limited. In addition to the devices shown in FIG1 , the communication system may also include other devices, such as core network devices.

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.

It should be noted that, depending on the communication scenario, the roles of the first node and the second node mentioned in the present disclosure may be different in 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 embodiment of the present disclosure, the first node serves as terminal 20 and the second node serves as terminal 30.

FIG2 shows a schematic 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:

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.

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 a reference signal located in a reference signal dedicated resource pool, and the second type is a reference signal located in a shared resource pool.

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

As shown in Figure 3, it is 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. 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 (PRB) 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 in the time slot.

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

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

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.

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.

Exemplarily, the reference signal dedicated resource pool is large, the sensing capability of the first node is limited, 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 according to the sensing result.

In some embodiments, the first node may determine the reference signal resource in a reference signal dedicated resource pool by random selection.

Exemplarily, take the case where the reference signal dedicated resource pool includes 10 reference signal resources. The first node may randomly select one or more of them as the corresponding reference signal resources. For example, the first node may generate a random number and select the corresponding reference signal resource according to the size 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.

It should be understood that the communication between the first node and the second node needs to rely on the unicast link between the first node and the second node. Before the first node and the second node communicate, a unicast link between the first node and the second node needs to be established to facilitate subsequent communication. The reference signal resource sent by the first node before establishing the unicast link is the same as the reference signal resource sent by the first node before establishing the unicast link. The reference signal resources sent after the unicast link is established are different. Therefore, the type of the reference signal resource is determined according to before and after the unicast link is established.

Specifically, as shown in Figure 4, a reference signal type diagram provided in an embodiment of the present disclosure is provided, and 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.

1. First reference signal resource.

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 one of a periodic resource and a semi-persistent resource.

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 determined the target node with which to establish the unicast link, so the first reference signal resource can be a unicast reference signal resource or a broadcast reference signal resource. As shown in FIG4 , the first reference signal resource sent by the first node is a broadcast reference signal resource, and the second node and the third node can both receive the first reference signal resource.

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 determined the target node with which to establish a unicast link, and needs to periodically or semi-continuously send the first reference signal resource in order to determine the second node with which to establish a unicast link. Therefore, the first reference signal resource is one of a periodic resource or a semi-continuous resource.

2. Second reference signal 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 one of a periodic resource, an aperiodic resource or a semi-persistent resource.

As shown in Fig. 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 receiving target of the second reference signal resource is only the second node. Therefore, the second reference signal resource is a unicast reference signal resource.

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. Since the unicast link has been established, the receiving target of the second reference signal resource is only 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 one of a periodic resource, an aperiodic resource, or a semi-persistent resource.

3. The third reference signal 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 one of a periodic resource, an aperiodic resource or a semi-persistent resource.

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 a unicast link 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 after the first node establishes a unicast link with the fourth node or the fifth node, etc., refer to the specific description of the third reference signal resource below, which will not be repeated in the present disclosure.

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

As shown in FIG4 , the third reference signal resource is a reference signal resource after a unicast link is established between the first node and the third node. 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.

It should be noted that the third reference signal resource refers to the first node after the first node and the third node establish a unicast link. The third reference signal resource is a reference signal resource sent from one point to the third node. Since a unicast link has been established, the receiving target of the third reference signal resource is only the third node, and there is no need to send the third reference signal resource in a periodic or semi-persistent manner. Therefore, the third reference signal resource can be one of a periodic resource, an aperiodic resource, or a semi-persistent resource.

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.

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.

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.

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.

Among them, 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.

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.

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.

In another exemplary embodiment, when the positions and directions of the multiple nodes are close, the reference signal resources required for the multiple nodes to transmit reference signals can be integrated into one reference signal resource set. For example, when the positions and directions of the second node and the third node are close, the reference signal resources required for the second node and the third node to transmit reference signals are 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.

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

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.

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.

S102: Send first information to the second node.

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.

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

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

Exemplarily, the first information is carried in a proximity communication radio resource control resource control, PC5 RRC) signaling or at least one of the media access control elements (mac control element, MAC CE).

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.

As a possible implementation manner, 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 information is carried in the PC5 RRC signaling.

Exemplarily, when the reference signal resources in the reference signal resource set indicated by the first information to the second node are periodic resources, the first node notifies the second node of the time-frequency resource positions corresponding to each reference signal resource in the reference signal resource set by sending the first information carried by PC5 RRC signaling.

As a possible implementation manner, 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 information is carried in the MAC CE.

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.

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 in 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 in 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 in 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.

Exemplarily, after a unicast link is established between a first node and a second node, the first node may configure a reference signal resource in a quasi co-location (QCL) relationship between the second node and a spatial beam by sending a first message carried in PC5RRC signaling or MAC CE.

Exemplarily, when the first information is carried by both PC5 RRC signaling and MAC CE, the first node sends the first information to the second node. The first information carried by PC5 RRC signaling is used to configure multiple reference signal resource sets for the second node, and the first information carried by MAC CE is used to indicate a currently used reference signal resource set for the second node. In addition, the first information carried by MAC CE can also indicate the reference signal resource corresponding to the default QCL beam spatial relationship (type D) on the side link based on the indicated currently used reference signal resource set. source, and multiple available QCL type D corresponding reference signal resources.

As a possible implementation manner, the first node may also indicate information about reference signal resources used for measurement to the second node based on the first information.

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 the first reference signal resource, the second reference signal resource, and the third reference signal resource.

Exemplarily, the first node may send first information to directly indicate the time-frequency resource position 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 to 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.

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, RS8, 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.

After the first node and the second node establish a unicast link, the first node configures a reference signal resource set for the second node by sending a first message carried in PC5 RRC signaling. The reference signal resource set includes {RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8}, and the first information also includes a time domain resource position and a frequency domain resource position corresponding to each reference signal resource and a source identifier corresponding to the reference signal resource set.

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 on the 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.

In another exemplary embodiment, the first node may also configure the communication beam on the unicast link established between 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 in the PC5 RRC signaling or MAC CE to configure the second node with 4 reference signal resources {RS2, RS4, RS5, RS7} for the beam used in the data communication process between the first node and the second node.

In another exemplary embodiment, the first node may also configure the beam measurement resources on the unicast link established between 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 in the PC5 RRC signaling or MAC CE to configure the second node with {RS1, RS2, RS3, RS4} 4 reference signal resources for the first node and the second node to use for BFD during data communication. The second node uses the reference signal resources for BFD to determine whether a beam failure occurs on the unicast link.

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 sensing result of the first node in the reference signal dedicated resource pool, which are 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 corresponding to each reference signal resource, the frequency domain resource position and the source identifier corresponding to the reference signal resource set 1. 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.

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 the 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 indication beam.

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

In another exemplary embodiment, 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 two 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}.

In another exemplary embodiment, based on the above example, the first node configures the 8 reference signal resources in the above reference signal resource set for the second node as reference signal resources for beam training of the first node and the second node in the data resource pool by sending the first information carried in PC5 RRC signaling or MAC CE. In addition, the first information carried in MAC CE can also indicate the time domain resource location and frequency domain resource location of the above 8 reference signal resources for the second node. Correspondingly, after receiving the first information, the second node performs beam training based on the reference signal resources for beam training indicated by the first information.

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 the destination identifier carried in the first information and the reference signal resource PSCCH may also be different. As shown in Figure 6, it is a schematic diagram of the reference signal resources before and after the first node establishes a unicast link with the second node. The reference signal resources in period P1 in Figure 6 are different from the reference signal resources in period P2.

It should be noted that, for the relevant description of configuring a reference signal resource set based on the third reference signal resource, and configuring or indicating a reference signal resource set and a reference signal resource in a reference signal resource set for a second node, reference can be made to the above-mentioned specific description of configuring a reference signal resource set based on the second reference signal resource, and configuring or indicating a reference signal resource set and a reference signal resource in a reference signal resource set for a second node, and the present disclosure will not repeat them here.

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

The first information is carried in spatial channel information (SCI). The information includes at least one of the following: the on state of beam repetition (Beam repetition on/off); the period indication information of the reference signal; the indication information of the resource location of the control channel in other time slots within the period of the reference signal (Frequency resource assignment+Time resource assignment); the source identifier; the destination identifier (Destination ID); 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.

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

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 a reference signal resource set corresponding to the reference signal and the reference signal resources in the reference signal resource set.

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 first information carried in the SCI.

In another exemplary embodiment, the first node can transmit up to 4 beams in one time slot in the reference signal dedicated resource pool. However, when the first node needs to transmit 8 beams, as shown in FIG4 , the second node can select PSCCH and associated reference signals in 2 time slots in the reference signal dedicated resource pool.

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.

Exemplarily, after the first node indicates the reference signal resource to the second node, the first node may indicate the spatial beam information of the 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.

In another exemplary embodiment, when the first node configures {RS2, RS4, RS5, RS7} 4 reference signal resources for the second node for the beam used in the data communication between the first node and the second node, the first node can indicate the current or future data communication beam based on the first information carried by the SCI. For example, 00 corresponds to RS2, 01 corresponds to RS4, 10 corresponds to RS5, and 11 corresponds to RS7. When the bit indicated by the first node based on the first information carried by the SCI is 00, it indicates that the communication beam in the reference signal resource of the current or future time slot is the spatial beam corresponding to RS2.

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 signals, and the present disclosure is not limited to this. 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 a 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 to this. 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 to this.

In this way, 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. Next, the first node sends the first information for indicating the reference signal resource set and the reference signal resource in the reference signal resource set to the second node, and indicates the communication resources required for the second node to transmit the reference signal through the first information. Ensure that the second node successfully receives the reference signal and improve communication quality.

FIG. 7 shows a schematic flow chart of a resource indication method provided by the present disclosure. As shown in FIG. 7 , the resource indication method is applied to the second node and includes the following steps:

S201. Receive 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, and the reference signal resource set includes reference signal resources determined by the first node from a reference signal resource pool.

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.

Among them, 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 one of 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 one of a periodic resource, a non-periodic 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 one of a periodic resource, a non-periodic resource or a semi-persistent resource.

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.

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.

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

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

Among them, 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 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 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; the time-frequency resource configuration information of the reference signal dedicated resource pool.

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.

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

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

The first information is carried in the SCI. The first information includes at least one of the following: the on state of beam repetition; the period indication information of the reference signal; the indication information of the resource location of the control channel in other time slots within the period of the reference signal; the source identifier; the destination identifier; 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.

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

In this way, 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. Next, the first node sends the first information for indicating the reference signal resource set and the reference signal resources in the reference signal resource set to the second node, and indicates 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.

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. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example 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.

The embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may 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 function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

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 by the above method embodiment. As shown in FIG8 , the communication device 80 includes a processing module 801 and a communication module 802 .

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.

The communication module 802 is used 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 in the reference signal resource set to the second node.

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.

In some embodiments, the communication module 802 is specifically used to: send the first information to the second node in the data resource pool.

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

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 of the control channel associated with each reference signal resource in the reference signal resource set; or control channel index; the number of reference signal resources in the reference signal resource set; the period of the reference signal resources; the time slot offset within the period of the reference signal resources; the index of the reference signal resources; 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 resources in the reference signal resource set; the reference signal resource set in the 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 resources used for beam measurement; the time-frequency position information or control channel index of the control channel associated with the reference signal resources 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; the time-frequency resource configuration information of the reference signal dedicated resource pool.

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.

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

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.

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

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 identifier; destination identifier; the number of periodically or non-periodically transmitted beams or reference signals; 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.

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

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 a unicast link is established between the first node and the second node; the second reference signal resource is a unicast reference signal resource after a link is established between the first node and the second node; and the third reference signal resource is a unicast reference signal resource after a unicast link is established between the first node and the third node.

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; the third reference signal resource is a periodic resource, a non-periodic resource or a semi-persistent resource.

In some embodiments, a 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 first reference signal resources; the second reference signal resource set includes all or part of the second reference signal resources; the third reference signal resource set includes all or part of the third reference signal resources; and 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.

FIG9 is a schematic diagram of a communication device applied to a second node according to an embodiment of the present disclosure. The communication device 90 can execute the resource indication method provided by the above method embodiment. As shown in FIG9 , the communication device 90 includes a communication module 901 and a processing module 902 .

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, where the reference signal resource set includes reference signal resources determined by the first node in a reference signal resource pool.

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

In some embodiments, the communication module 901 is specifically used to: receive first information sent by a first node in a data resource pool.

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

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.

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 an indication of the first node, where the measurement includes at least one of the following: link measurement, beam measurement, and channel measurement.

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

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

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

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 identifier; destination identifier; the number of periodically or non-periodically transmitted beams or reference signals; 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.

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

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 a unicast link is established between the first node and the second node; the second reference signal resource is a unicast reference signal resource after a link is established between the first node and the second node; and the third reference signal resource is a unicast reference signal resource after a unicast link is established between the first node and the third node.

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 or a semi-persistent resource; The first reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource; the second reference signal resource is one of a periodic resource, a non-periodic resource or a semi-persistent resource.

In some embodiments, a 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 first reference signal resources; the second reference signal resource set includes all or part of the second reference signal resources; the third reference signal resource set includes all or part of the third reference signal resources; and 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.

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

The processor 1002 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The 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 devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 1002 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The communication interface 1003 is used to connect with other devices through a communication network. The communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.

The memory 1001 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices 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 codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

As a possible implementation, the memory 1001 may exist independently of the processor 1002, and the memory 1001 may be connected to the processor 1002 via the 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.

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

The bus 1004 may be an extended industry standard architecture (EISA) bus, etc. The bus 1004 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, FIG10 only uses one thick line, but does not mean that there is only one bus or one type of bus.

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

Exemplarily, the computer-readable storage medium may include, but is not limited to: a magnetic storage device (eg, a hard disk, 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.

An embodiment of the present disclosure provides a computer program product including 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.

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

Claims (29)

A resource indication method, applied to a first node, 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. The method according to claim 1, wherein determining the reference signal resource in the reference signal dedicated resource pool comprises: 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. The method according to claim 1, wherein the sending the first information to the second node comprises: The first information is sent to the second node in a data resource pool. According to the method according to claim 3, the first information is carried in at least one of the proximity communication radio resource control PC5 RRC signaling or the media access control element MAC CE. 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. 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. The method according to claim 3, wherein the reference signal dedicated resource pool and the data resource pool are network configured or pre-configured. The method according to claim 1, wherein the sending the first information to the second node comprises: The first information is sent to the second node in the reference signal dedicated resource pool. The method according to claim 8, wherein the first information is carried in side link control information SCI. 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. 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. According to the method of claim 1, 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; the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link. The method according to claim 12, wherein the first reference signal resource is one of a periodic resource or 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. 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. A resource indication method, applied to a second node, 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; The reference signal resource set and the reference signal resources within the reference signal resource set are determined based on the first information. The method according to claim 15, wherein the receiving the first information sent by the first node comprises: The first information sent by the first node is received in a data resource pool. The method according to claim 16, wherein the first information is carried in at least one of PC5 RRC signaling or MAC CE. 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 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. 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. The method according to claim 16, wherein the reference signal dedicated resource pool and the data resource pool are network configured or pre-configured. The method according to claim 15, wherein the receiving the first information sent by the first node comprises: The first information sent by the first node is received in the reference signal dedicated resource pool. The method according to claim 21, wherein the first information is carried in SCI. 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. 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. The method according to 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; the third reference signal resource is a unicast reference signal resource after the first node and the third node establish a unicast link. The method according to claim 25, wherein the first reference signal resource is one of a periodic resource or 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. 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. A communication device comprises 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. 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.