CN117955620A

CN117955620A - Resource indication method, device and storage medium

Info

Publication number: CN117955620A
Application number: CN202311724996.6A
Authority: CN
Inventors: 陈杰; 卢有雄; 苗婷; 贺海港
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2023-12-14
Filing date: 2023-12-14
Publication date: 2024-04-30

Abstract

The embodiment of the disclosure provides a resource indication method, a device and a storage medium, relates to the technical field of communication, and is used for indicating communication resources required by reference signal transmission. The resource indication method comprises the following steps: determining reference signal resources in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resources; and sending first information to the second node, wherein the first information is used for indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node.

Description

Resource indication method, device and storage medium

Technical Field

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

Background

A side-link (side-link) communication system is a system for direct device-to-device communication. Wherein, each terminal can directly communicate without relay transmission by a base station or a network infrastructure. The sidelink communication system has the advantages of low delay, high bandwidth, high flexibility, low burden and the like, and provides more possibility and development space for the mobile network.

In a side link communication system, a transmitting terminal needs to transmit a reference signal before or during communication to determine a communication beam on a unicast link between the transmitting terminal and a receiving terminal. In addition, communication resources required when the receiving terminal transmits the reference signal are required to be indicated, so that the receiving terminal can be ensured to successfully receive the reference signal. But no specific resource indication means currently exists.

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

Disclosure of Invention

The embodiment of the disclosure provides a resource indication method, a device and a storage medium, which are used for indicating communication resources required by reference signal transmission.

In a first aspect, a method for indicating resources is provided, which is applied to a first node, and includes:

Determining reference signal resources in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resources; and sending first information to the second node, wherein the first information is used for indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node.

In a second aspect, another resource indication method is provided, applied to a second node, including:

Receiving first information sent by a first node, wherein the first information is used for indicating a reference signal resource set and reference signal resources in the reference signal resource set, and the reference signal resource set comprises reference signal resources determined by the first node from a reference signal resource pool; a set of reference signal resources and reference signal resources within the set of reference signal resources are determined based on the first information.

In a third aspect, there is provided a communication apparatus comprising:

And the processing module is used for determining reference signal resources in the reference signal special resource pool and determining a reference signal resource set based on the determined reference signal resources.

And the communication module is used for sending first information to the second node, wherein the first information is used for indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node.

In a fourth aspect, there is provided another communication apparatus comprising:

the communication module is used for receiving first information sent by the first node, wherein the first information is used for indicating a reference signal resource set and reference signal resources in the reference signal resource set, and the reference signal resource set comprises reference signal resources determined by the first node from a reference signal resource pool.

And the processing module is used for determining a reference signal resource set and reference signal resources in the reference signal resource set based on the first information.

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

In a sixth aspect, there is provided a computer readable storage medium comprising computer instructions; wherein when the computer instructions are executed, the resource indication method of the first aspect is implemented, or the resource indication method of the second aspect is implemented.

In the embodiment of the disclosure, after the first node determines the reference signal resource in the reference dedicated resource pool, the first node determines the reference signal resource set based on the determined reference signal resource, so that the communication resource can be effectively used, and the utilization rate of the communication resource is improved. And then, the first node sends 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 the first information indicates the communication resources required by the second node for transmitting the reference signal, so that the second node can be ensured to successfully receive the reference signal, and the communication quality is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure;

fig. 2 is a flow chart of a resource indication method according to an embodiment of the disclosure;

Fig. 3 is a schematic structural diagram of a time slot in a dedicated reference signal resource pool according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of types of reference signals provided by embodiments of the present disclosure;

Fig. 5 is a schematic structural diagram of a first reference signal resource according to an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of a reference signal resource provided in an embodiment of the disclosure;

fig. 7 is a flowchart of another resource indication method according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

Fig. 9 is a schematic structural diagram of another communication device according to an embodiment of the disclosure;

fig. 10 is a schematic structural diagram of still another communication device according to an embodiment of the present disclosure.

Detailed Description

The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

In the description of the present disclosure, unless otherwise indicated, "/" means "or" and, for example, a/B may mean a or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. Furthermore, "at least one" means one or more, and "a plurality" means two or more. The terms "first," "second," and the like do not limit the number and order of execution, and the terms "first," "second," and the like do not necessarily differ.

It is noted that in this disclosure, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "e.g." should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

As described in the background, there is currently no specific resource indication in the sidelink communication system. According to the resource indication method provided by the disclosure, after the first node determines the reference signal resource in the reference dedicated resource pool, the first node determines the reference signal resource set based on the determined reference signal resource, so that the communication resource can be effectively used, and the utilization rate of the communication resource is improved. And then, the first node sends first information for configuring the indication reference signal resource set and the reference signal resources in the reference signal resource set to the second node, and the first information indicates the communication resources required by the second node for transmitting the reference signal, so that the second node is ensured to successfully receive the reference signal, and the communication quality is improved.

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

In some embodiments, the network-side device 10 may be a long term evolution (long term evolution, LTE), a base station or evolved base station (evolutional node B, eNB or eNodeB) in long term evolution enhancement (long term evolution advanced, LTE-a), a base station device in a 5G network, or a base station in a future communication system, etc., which may include various macro base stations, micro base stations, home base stations, wireless remotes, reconfigurable intelligent surfaces (reconfigurable intelligent surface, RIS), routers, wireless fidelity (WIRELESS FIDELITY, WIFI) devices, etc.

In some embodiments, the terminal may be a device with wireless transceiving functions, which may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on the water surface (such as ships, etc.); but may also be deployed in the air (e.g., on aircraft, balloon, satellite, etc.). The terminal may be a mobile phone, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal, an augmented Reality (Augmented Reality, AR) terminal, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (SELF DRIVING), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (SMART GRID), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (SMART CITY), a wireless terminal in smart home (smart home), etc. Embodiments of the present disclosure are not limited to application scenarios. A terminal may also be referred to as a User, user Equipment (UE), access terminal, UE unit, UE station, mobile station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, UE device, or the like, as embodiments of the present disclosure are not limited in this respect.

As shown in fig. 1, when the link quality between the terminal 20 and the terminal 30 is good, the terminal 20 may not transmit data to the terminal 30 through the network side device 10, but may transmit data to the terminal 30 through the side link, so that the terminal 20 may implement communication with the terminal 30 through the side link, in the coverage of the network side device 10. Wherein terminal 20 is also referred to as a transmitting terminal and terminal 30 is also referred to as a receiving terminal.

It should be noted that fig. 1 is merely an exemplary frame diagram, the number of devices included in fig. 1 is not limited, and names of the respective devices are not limited, and the communication system may include other devices, such as core network devices, in addition to the devices shown in fig. 1.

The application scenario of the embodiments of the present disclosure is not limited. The system architecture and the service scenario described in the embodiments of the present disclosure are for more clearly describing 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, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of a new service scenario, the technical solutions provided by the embodiments of the present disclosure are applicable to similar technical problems.

It should be noted that, according to the different communication scenarios, the roles of the first node and the second node in the communication scenario may be different. For example, the first node may be the terminal 20 or the terminal 30, and the second node may be the terminal 20 or the terminal 30. For ease of understanding, in the embodiments of the present disclosure, the first node is the terminal 20, and the second node is the terminal 30.

Fig. 2 is a flow chart illustrating a resource indication method provided by the present disclosure, where, as shown in fig. 2, the resource indication method is applied to a first node, and includes the following steps:

s101, determining reference signal resources in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resources.

In the sidelink communication system, reference signals transmitted by the transmitting terminal may be divided into two types. The first is the reference signal located in the dedicated resource pool of reference signals, and the second is the reference signal located in the shared resource pool.

The reference signal dedicated resource pool includes a reference signal, or includes a reference signal and side-link control information (SCI) corresponding to the reference signal. The shared resource pool includes reference signals and other data channels, such as physical side chain shared channels (PHYSICAL SIDE-LINK SHARED CHANNEL, PSSCH). Reference signals referred to in this disclosure are reference signals in a reference signal dedicated resource pool.

Fig. 3 is a schematic structural diagram of a time slot in a dedicated reference signal resource pool according to an embodiment of the present disclosure. The frequency domain is divided into a plurality of physical bypass control channels (PHYSICAL SIDE-link control channel, PSCCH) over one slot. Wherein the PSCCH occupies a set of physical resource blocks (physical resource block, PRBs) of the frequency domain and the first few symbols of the slot. The time domain resources after the PSCCH are used to transmit reference signals. And, one PSCCH channel is associated with a set of reference signal resources within the slot, and different PSCCH associated reference signal resources have an orthogonal relationship within the slot.

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

Illustratively, 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. And the first node determines corresponding reference signal resources in the reference signal dedicated resource pool according to the scheduling information.

In some embodiments, the first node may determine the reference signal resources based on a perceived result of the first node in the reference signal dedicated resource pool.

It should be appreciated 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.

The reference signal dedicated resource pool is larger, the sensing capability of the first node is limited, and the sensing result only comprises part of reference signal resources in the reference signal dedicated resource pool. Next, the first node determines the required reference signal resources according to the perceived result.

In some embodiments, the first node may determine the reference signal resources in a randomly selected manner in a reference signal dedicated resource pool.

Illustratively, the reference signal dedicated resource pool includes 10 reference signal resources. The first node may randomly select one or more of them as corresponding reference signal resources. For example, the first node may select the corresponding reference signal resource by generating a random number and based on the size of the random number. When the random number is 3, selecting the 3 rd reference signal resource as the corresponding reference signal resource. When the random number is 5, the 5 th reference signal resource is selected as the corresponding reference signal resource.

It will be appreciated that communication between the first node and the second node may be accomplished by means of a 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 so as to facilitate subsequent communication. The reference signal resource sent by the first node before the unicast link is established is different from the reference signal resource sent after the unicast link is established, so that the type of the reference signal resource is determined according to the before and after the unicast link is established.

Specifically, as shown in fig. 4, a schematic diagram of types of reference signals provided in an embodiment of the disclosure is described with reference to fig. 4. The reference signal resources include at least one of: a first reference signal resource, a second reference signal resource, and a third reference signal resource.

1. A first reference signal resource.

The first reference signal resource is a unicast or broadcast reference signal resource prior to the first node and the second node establishing a unicast link. The first reference signal resource is one of a periodic resource or a semi-persistent resource.

Illustratively, the first reference signal resource is a reference signal resource transmitted prior to the first node and the second node establishing the unicast link. The first node does not determine the target node with which to establish the unicast link before establishing the unicast link, and thus the first reference signal resource may be a unicast reference signal resource or a broadcast reference signal resource. As shown in fig. 4, the first reference signal resource transmitted 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.

It should be noted that the first reference signal resource is a reference signal resource sent by the first node before the unicast link is established. Before the unicast link is established, the first node does not determine the target node for establishing the unicast link with itself, and needs to periodically or semi-continuously transmit the first reference signal resource so as to determine the second node for establishing the unicast link with itself. Thus, the first reference signal resource is one of a periodic resource or a semi-persistent resource.

2. And a 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, a non-periodic 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. Thus, the second reference signal resource is a unicast reference signal resource.

It should be noted that, the second reference signal resource refers to a 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 is already established, the second reference signal resource is only received by the second node, and the second reference signal resource does not need to be sent in a periodic or semi-persistent manner. Thus, the second reference signal resource may be one of a periodic resource, a non-periodic resource, or a semi-persistent resource.

3. And a 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, a non-periodic resource, or a semi-persistent resource.

It should be appreciated that in a side link communication system, a transmitting terminal may establish unicast links with multiple receiving terminals. As shown in fig. 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 greater number of nodes, such as a fourth node, a fifth node, etc., not shown in fig. 4. The description of the reference signal resource transmitted after the first node establishes the unicast link with the fourth node or the fifth node may refer to the following specific description of the third reference signal resource, which is not repeated herein in this disclosure.

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

As shown in fig. 4, the third reference signal resource is a reference signal resource after the first node and the third node establish a unicast link, and 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 a reference signal resource sent by the first node to the third node after the first node and the third node establish a unicast link. Since the unicast link is already established, the third reference signal resource is only received by the third node, and the third reference signal resource does not need to be sent in a periodic or semi-persistent manner. Thus, the third reference signal resource may be one of a periodic resource, a non-periodic 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 set of reference signal resources is determined based on the first, second, and third reference signal resources 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.

The reference signal resource set, for example, comprises at least one of: a first set of reference signal resources, a second set of reference signal resources, a third set of reference signal resources, and a fourth set of reference signal resources.

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 appreciated that when the first node transmits the reference signal, the reference signal resources required are not all of the determined reference signal resources. All or part of the reference signal resources may be included in the reference signal resource set.

The first set of reference signal resources may include all or part of the first reference signal resources; the second set of reference signal resources includes all or part of the second reference signal resources; the third set of reference signal resources includes all or part of the resources of the third reference signal resources.

In another example, when the positions and directions of the plurality of nodes are close, the reference signal resources required by the plurality of nodes when transmitting the 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 by the second node and the third node when transmitting the reference signal are integrated into the fourth reference signal resource set. Thus, the fourth set of reference signal resources comprises 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.

Thus, the reference signal resources required by a plurality of nodes for transmitting the reference signals are integrated into one reference signal resource set, so that the resource overhead can be reduced, and the transmission efficiency can be improved.

It should be noted that the period attribute of the reference signal resources in the same reference signal resource set is the same, and for each reference signal resource set, the source identifier of a first node is corresponding.

It should be appreciated that since the first node may establish unicast links with multiple nodes, more than the three reference signal resources described above are included in the reference signal resources. Correspondingly, the reference signal resource set also comprises more than four reference signal resource sets.

S102, sending the first information to the second node.

The first information is used for indicating a reference signal resource set and reference signal resources in the reference signal resource set for the second node.

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

Wherein the data resource pool comprises data, data signals and other relevant information.

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

Still further exemplary, the first information includes at least one of: time-frequency resource positions of each reference signal resource in the reference signal resource set; time-frequency resource positions or control channel indexes of control channels associated with all reference signal resources in the reference signal resource set; the number of reference signal resources in the set of reference signal resources; a period of the reference signal resource; a slot offset within a period of the reference signal resource; index of reference signal resource; a source identifier corresponding to the reference signal resource; position information of a starting time slot and position information of a starting frequency domain of a reference signal in aperiodic reference signal resources in a reference signal resource set; a reference signal resource set of an active state; index of each reference signal resource in the reference signal resource set; index of reference signal resources for beam measurement; index of the reference signal resource set; position information of time-frequency domain resources among reference signal resources for beam measurement; time-frequency location information or control channel index of a control channel associated with reference signal resources for beam measurement; the position of the reference signal resource corresponding to the wave beam information in the data resource pool; index of reference signal resource corresponding to wave beam information in the data resource pool; carrier index of reference signal dedicated resource pool; a resource pool index of a reference signal dedicated resource pool; time-frequency resource configuration information of a reference signal dedicated resource pool.

As a possible implementation manner, in a case that the first information is periodic resources, the first information is carried in PC5 RRC signaling.

In an exemplary embodiment, when the first information is that the reference signal resource in the reference signal resource set indicated by the second node is a periodic resource, the first node informs the second node of the time-frequency resource positions corresponding to the reference signal resources in the reference signal resource set by sending the first information carried in the PC5 RRC signaling.

As a possible implementation manner, in a case where the first information is non-periodic resources, the first information is carried in the MAC CE.

In an exemplary embodiment, when the first information is that the reference signal resource in the reference signal resource set indicated by the second node is an aperiodic resource, the first node informs the second node of the time-frequency resource location of the reference signal resource in the reference signal dedicated resource pool by sending the first information carried in the MAC CE.

It should be noted that, the first information can be used not only 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 hereinafter, in the case that the first node sends the first information in the reference signal dedicated resource pool and the first information is carried in the SCI), but also to configure the reference signal resource set and the reference signal resources within the reference signal resource set for the second node (for example, in the case that the first node sends the first information in the data resource pool and the first information is carried in the PC5 RRC signaling), and may also be implemented by simultaneously carrying in the PC5 RRC signaling, and in the MAC CE or the SCI, to configure and indicate the reference signal resource set for the second node.

For example, after the first node establishes a unicast link with the second node, the first node may configure a reference signal resource where the second node has a quasi co-location (QCL) relationship with a spatial beam by sending first information carried in PC5 RRC signaling or MAC CE.

Illustratively, in the case where the first information is carried on both the PC5 RRC signaling and the 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 a plurality of reference signal resource sets for the second node, and the first information carried in the MAC CE is used to indicate one currently used reference signal resource set for the second node. The first information carried in the MAC CE may further indicate a reference signal resource corresponding to a default QCL beam space relation (type D) on the side link and reference signal resources corresponding to a plurality of available QCL types D based on the indicated currently used reference signal resource set.

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

Wherein the measuring comprises at least one of: link measurement, beam measurement, channel measurement (DFR). For example, the link measurement may be radio link monitoring (radio link monitoring, RLM) and the beam measurement may be beam failure detection (beam failure detection, BFD). The reference signal resources for measurement are configured based on at least one of the first reference signal resources, the second reference signal resources, and the third reference signal resources.

For example, the first node may send the first information to directly indicate a time-frequency resource location corresponding to the reference signal resource for measurement, and indicate a source identification (source ID) corresponding to the reference signal resource for measurement to the second node based on the first information. Or the first node may send the first information to configure, for the second node, a reference signal resource set corresponding to the reference signal resource used for measurement, and indicate, for the second node, an index of the reference signal resource used for measurement in the reference signal resource set based on the first information.

In yet another example, the first node sends a resource request to the base station before establishing the 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 fig. 5, a schematic structure of the first reference signal resource determined by the first node is shown. In the transmission period of the first reference signal resource, 8 reference signal resources are respectively RS1, RS2, RS3, RS4, RS5, RS6, RS7 and RS8, and are positioned on 2 time slots, and the resource transmission period is P. The 8 reference signal resources are periodically transmitted before the first node and the second node establish a unicast link.

After the first node and the second node establish the unicast link, the first node configures a reference signal resource set for the second node by sending first information carried on the PC5 RRC signaling. The reference signal resource set includes { RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8}, and the first information further 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.

Still further exemplary, the first node may also configure a 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 first information carried on PC5 RRC signaling or MAC CE, indicating to the second node that RS3 is a reference signal resource associated with a default QCL type D for a physical bypass control channel (PHYSICAL SIDE-link control channel, PSCCH) or physical side-chain shared channel (PHYSICAL SIDE-LINK SHARED CHANNEL, PSSCH). Therefore, after the first node and the second node establish the unicast link, if the second node cannot acquire the space receiving beam of the PSCCH or the PSSCH in advance in the communication process between the second node and the first node, the space beam corresponding to the RS3 is used to receive the PSCCH or the PSSCH transmitted by the first node.

Still further exemplary, the first node may also configure the communication 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 transmits first information carried on PC5 RRC signaling or MAC CE configures { RS2, RS4, RS5, RS7}4 reference signal resources for the second node for beams used in the data communication process of the first node and the second node.

Still further exemplary, the first node may also configure beam measurement resources on unicast links 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 transmits first information carried on PC5 RRC signaling or MAC CE configures { RS1, RS2, RS3, RS4}4 reference signal resources for the second node for reference signal resources used for BFD by the first node and the second node in a data communication process. Correspondingly, the second node uses the reference signal resources for BFD to determine whether a beam failure occurred on the unicast link.

In another example, after the first node establishes a unicast link with the second node, the first node determines 2 periodic second reference signal resources, which are respectively the second reference signal resource of period 1 and the second reference signal resource of period 2, based on a sensing (sensing) result of the first node in the dedicated reference signal resource pool. The reference signal resource set 1 configured by the first node based on the second reference signal resource of the period 1 comprises { RS2, RS4, R6, RS8}, and the reference signal resource set 1 comprises a time domain resource position corresponding to each reference signal resource, a frequency domain resource position and a source identifier corresponding to the reference signal resource set 1. The reference signal resource set 2 of the second reference signal resource configuration of the first node based on period 2 includes { RS1, RS2, R3, RS4}. It should be noted that, RS2 in the reference signal resource set 1 is different from RS2 in the reference signal resource set 2, and the corresponding numbers thereof are all determined based on the second reference signal resource corresponding to the reference signal resource set.

Still further exemplary, based on the above example, the first node configures RS2 in the reference signal resource set 1 as a reference signal resource corresponding to a default beam in the data resource pool for the second node by transmitting first information carried in PC5 RRC signaling or MAC CE. Or configuring all the reference signal resources in the reference signal resource set 1 for the second node as the reference signal resources corresponding to the dynamic indication beam.

Still 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 transmitting 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 (beam failure recovery, BFR) for the second node.

In another example, the first node determines 1 aperiodic second reference signal resource comprising 8 reference signal resources located on different 2 slots each containing 4 reference signal resources before establishing a link with the second node, and the reference signal resource set configured by the first node based on the second reference signal resource comprises { RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8}.

Still another example, based on the above example, the first node configures 8 reference signal resources in the above reference signal resource set for the second node by sending first information carried on PC5 RRC signaling or MAC CE as reference signal resources for the first node and the second node in the data resource pool for beam training. The first information carried by the MAC CE may also indicate the time domain resource location and the frequency domain resource location of the 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 resource for beam training indicated by the first information.

It should be appreciated that the reference signal resources determined by the first node before and after establishing a unicast link with the second node may be different, as may the source and destination identities carried in the first information and in the reference signal resource PSCCH. As shown in fig. 6, the reference signal resource diagram of the first node before and after the unicast link is established with the second node is shown, and the reference signal resource in the period P1 is different from the reference signal resource in the period P2 in fig. 6.

It should be noted that, the configuring the reference signal resource set based on the third reference signal resource, and the configuring or indicating the reference signal resource set for the second node and the related description of the reference signal resources in the reference signal resource set may refer to the configuring the reference signal resource set based on the second reference signal resource, and the configuring or indicating the specific description of the reference signal resources in the reference signal resource set and the reference signal resource set for the second node, which are not repeated herein.

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 first information includes at least one of: the on state of the beam repetition (Beam repetition on/off); period indication information of the reference signal; indication information (Frequency resource assignment + Time resource assignment) of the resource location of the control channel in other slots within the period of the reference signal; a source identification; destination identification (Destination ID); the number of beams or reference signals transmitted periodically or aperiodically; a starting index of a beam or a reference signal in a current slot; the number of beams or reference signals in the current slot.

It should be noted that, before the first node and the second node establish the unicast link, the position information of the reference signal resource acquired by the first node cannot be notified to the second node in advance. The second node needs to perform blind detection in the dedicated reference signal resource pool, and determines the position information of the reference signal resource before the first node and the second node establish the unicast link according to the first information carried in the PSCCH associated with the blind detected reference signal resource.

In an exemplary embodiment, when a first node transmits a reference signal on a time slot in a dedicated resource pool of the reference signal, the first node sends first information carried in the SCI to a second node to indicate, for the second node, a reference signal resource set corresponding to the reference signal and a reference signal resource in the reference signal resource set.

In yet another example, the reference signal resource transmitted by the first node before the first node establishes a link with the second node may indicate the time-frequency resource location information of the reference signal resource and the period information for the second node by transmitting the first information carried by the SCI.

Still another example, the first node may transmit a maximum of 4 beams (beams) on one slot in the reference signal dedicated resource pool. But when the first node needs to transmit 8 beams, the second node may select PSCCH and associated reference signals over 2 slots in the reference signal dedicated resource pool, as shown in fig. 4.

As one possible implementation, the first node may indicate spatial beam information of channels or signals in the data resource pool to the second node based on the first information.

For example, after the first node indicates the reference signal resource for the 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 on the SCI. Wherein the spatial beam of the current data or the future data is the same as the spatial beam of the reference signal resource with QCL relation indicated by the first information carried in the SCI.

Still further exemplary, in case the first node configures { RS2, RS4, RS5, RS7}4 reference signal resources for the second node for beams used in data communication of the first node and the second node, the first node may indicate a current or future data communication beam based on the first information carried on the SCI. For example, 00 corresponds to RS2, 01 corresponds to RS4,10 corresponds to RS5, 11 corresponds to RS7. In case that the first node indicates 00 bits based on the first information carried on the SCI, it means that the communication beam in the reference signal resource of the current or future slot is the spatial beam corresponding to RS 2.

It should be noted that, in the embodiment of the present disclosure, the reference signal may be a channel state information reference signal (CSI-RS) or other reference signals, which is not limited in the present disclosure. In the embodiment of the disclosure, the signaling related to the first node and the second node may be acquired through configuration, for example, may be configured for a network, may be configured for the first node to be configured for the second node, and the second node is configured for the first node. Or by preconfigured acquisition, to which the present disclosure is not limited. The reference signal dedicated resource pool and the data resource pool in the present disclosure may be configured or preconfigured through a network, which is not limited by the present disclosure.

In this way, after the first node determines the reference signal resource in the reference dedicated resource pool, the first node determines the reference signal resource set based on the determined reference signal resource, so that the communication resource can be effectively used, and the utilization rate of the communication resource is improved. And then, the first node sends 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 the first information indicates the communication resources required by the second node for transmitting the reference signal, so that the second node can be ensured to successfully receive the reference signal, and the communication quality is improved.

Fig. 7 is a flowchart illustrating a resource indication method provided by the present disclosure, where, as shown in fig. 7, the resource indication method is applied to a second node, and includes the following steps:

s201, first information sent by a first node is received.

The first information is used for indicating a reference signal resource set and reference signal resources in the reference signal resource set, wherein the reference signal resource set comprises reference signal resources determined by a first node from a reference signal resource pool.

In some embodiments, the reference signal resources include at least one of: a first reference signal resource, a second reference signal resource, and a third reference signal resource.

The first reference signal resource is unicast or broadcast reference signal resource before the first node and the second node establish 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 set of reference signal resources comprises at least one of: a first set of reference signal resources, a second set of reference signal resources, a third set of reference signal resources, and a fourth set of reference signal resources.

Wherein the first set of reference signal resources comprises all or part of the first reference signal resources; the second set of reference signal resources includes all or part of the second reference signal resources; the third set of reference signal resources includes all or part of the third reference signal resources; the fourth set of reference signal resources 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, determining a reference signal resource set and reference signal resources in 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 a data resource pool.

Wherein the first information is carried in at least one of PC5 RRC signaling or MAC CE. The first information includes at least one of: time-frequency resource positions of each reference signal resource in the reference signal resource set; time-frequency resource positions or control channel indexes of control channels associated with all reference signal resources in the reference signal resource set; the number of reference signal resources in the set of reference signal resources; a period of the reference signal resource; a slot offset within a period of the reference signal resource; index of reference signal resource; a source identifier corresponding to the reference signal resource; position information of a starting time slot and position information of a starting frequency domain of a reference signal in aperiodic reference signal resources in a reference signal resource set; a reference signal resource set of an active state; index of each reference signal resource in the reference signal resource set; index of reference signal resources for beam measurement; index of the reference signal resource set; position information of time-frequency domain resources among reference signal resources for beam measurement; time-frequency location information or control channel index of a control channel associated with reference signal resources for beam measurement; the position of the reference signal resource corresponding to the wave beam information in the data resource pool; index of reference signal resource corresponding to wave beam information in the data resource pool; carrier index of reference signal dedicated resource pool; a resource pool index of a reference signal dedicated resource pool; time-frequency resource configuration information of a reference signal dedicated resource pool.

As a possible implementation, the second node determines information of the reference signal resource for measurement based on the first information and the indication of the first node.

Wherein the measuring comprises at least one of: link measurement, beam measurement, channel measurement.

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

Wherein the first information is carried in the SCI. The first information includes at least one of: the on state of the beam repetition; period indication information of the reference signal; indication information of resource positions of control channels in other time slots in a period of the reference signal; a source identification; a destination mark; the number of beams or reference signals transmitted periodically or aperiodically; a starting index of a beam or a reference signal in a current slot; the number of beams or reference signals in the current slot.

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

It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The embodiment of the disclosure may divide the functional modules of the communication device according to the embodiment of the method described above, for example, each functional module may be divided for each function, or two or more functions may be integrated into one functional module. The integrated modules may be implemented in hardware or software. It should be noted that, in the embodiment of the present disclosure, the division of the modules is merely a logic function division, and other division manners may be implemented in actual practice. The following description will take an example of dividing each function module into corresponding functions.

Fig. 8 is a schematic structural diagram of a communication device applied to a first node according to an embodiment of the present disclosure, where the communication device 80 may perform the resource indication method provided in the foregoing method embodiment. As shown in fig. 8, the communication device 80 includes a processing module 801 and a communication module 802.

A processing module 801 is configured to determine reference signal resources in a reference signal dedicated resource pool, and determine a reference signal resource set based on the determined reference signal resources.

A communication module 802 is configured to send first information to a second node, where the first information is configured to indicate a set of reference signal resources and reference signal resources within the set of reference signal resources for the second node.

In some embodiments, the processing module 801 is specifically configured to: determining reference signal resources in a reference signal dedicated resource pool based on scheduling information of a base station; or determining the reference signal resource based on the sensing result of the first node in the reference signal dedicated resource pool; or the reference signal resources are determined in a random selection manner in a reference signal dedicated resource pool.

In some embodiments, the communication module 802 is specifically configured to: and sending 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: time-frequency resource positions of each reference signal resource in the reference signal resource set; time-frequency resource positions or control channel indexes of control channels associated with all reference signal resources in the reference signal resource set; the number of reference signal resources in the set of reference signal resources; a period of the reference signal resource; a slot offset within a period of the reference signal resource; index of reference signal resource; a source identifier corresponding to the reference signal resource; position information of a starting time slot and position information of a starting frequency domain of a reference signal in aperiodic reference signal resources in a reference signal resource set; a reference signal resource set of an active state; index of each reference signal resource in the reference signal resource set; index of reference signal resources for beam measurement; index of the reference signal resource set; position information of time-frequency domain resources among reference signal resources for beam measurement; time-frequency location information or control channel index of a control channel associated with reference signal resources for beam measurement; the position of the reference signal resource corresponding to the wave beam information in the data resource pool; index of reference signal resource corresponding to wave beam information in the data resource pool; carrier index of reference signal dedicated resource pool; a resource pool index of a reference signal dedicated resource pool; time-frequency resource configuration information of a reference signal dedicated resource pool.

In some embodiments, the communication module 802 is further to: based on the first information, indicating information of reference signal resources for measurement to the second node, the measurement comprising at least one of: link measurement, beam measurement, channel measurement.

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

In some embodiments, the communication module 802 is specifically configured to: the first information is sent 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 on state of the beam repetition; period indication information of the reference signal; indication information of resource positions of control channels in other time slots in a period of the reference signal; a source identification; a destination mark; the number of beams or reference signals transmitted periodically or aperiodically; a starting index of a beam or a reference signal in a current slot; the number of beams or reference signals in the current slot.

In some embodiments, the communication module 802 is further configured to: based on the first information, spatial beam information of channels or signals in the data resource pool is indicated to the second node.

In some embodiments, the reference signal resources include at least one of: a first reference signal resource, a second reference signal resource, and a third reference signal resource; the first reference signal resource is unicast or broadcast reference signal resource before the first node and the second node establish a unicast link; the second reference signal resource is 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.

In some embodiments, 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.

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

Fig. 9 is a schematic structural diagram of a communication device applied to a second node according to an embodiment of the present disclosure, where the communication device 90 may perform the resource indication method provided in the foregoing method embodiment. As shown in fig. 9, the communication apparatus 90 includes a communication module 901 and a processing module 902.

The communication module 901 is configured 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 in the reference signal resource set, and the reference signal resource set includes reference signal resources determined by the first node in a reference signal resource pool.

A processing module 902 is configured to determine a set of reference signal resources and reference signal resources within the set of reference signal resources based on the first information.

In some embodiments, the communication module 901 is specifically configured to: and receiving the first information sent by the first node in the data resource pool.

In some embodiments, the communication module 901 is further configured to: based on the first information and the indication of the first node, determining information of reference signal resources for measurement, the measurement comprising at least one of: link measurement, beam measurement, channel measurement.

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

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

In some embodiments, the communication module 901 is further configured to: based on the first information and the indication of the first node, spatial beam information of channels or signals in the data resource pool is determined.

In the case where the functions of the above-described integrated modules are implemented in the form of hardware, the embodiments of the present disclosure provide another possible structure of the communication apparatus referred to in the above-described embodiments. As shown in fig. 10, the communication device 100 includes: processor 1002, bus 1004. Optionally, the communication device may further comprise a memory 1001; optionally, the communication device 100 may further comprise a communication interface 1003.

The processor 1002 may be any means for implementing or executing the various exemplary logic blocks, modules, and circuits described in connection with embodiments of the 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 device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules and circuits described in connection with embodiments of the disclosure. The processor 1002 may also be a combination of computing functions, e.g., including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

Communication interface 1003 is used to connect with other devices through a communication network. The communication network may be an ethernet, a radio access network, a wireless local area network (wireless local area networks, WLAN), etc.

Memory 1001, which may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), magnetic disk storage 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 that can be accessed by a computer.

As a possible implementation, the memory 1001 may exist separately from the processor 1002, and the memory 1001 may be connected to the processor 1002 through the bus 1004, for storing instructions or program code. The processor 1002, when calling and executing instructions or program code stored in the memory 1001, is capable of implementing the resource indication method provided by the embodiments of the present disclosure.

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

Bus 1004, which may be an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The bus 1004 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 10, but not 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) having stored therein computer program instructions that, when run on a computer, cause the computer to perform a resource indication method as in any of the above embodiments.

By way of example, the computer-readable storage media described above can include, but are not limited to: magnetic storage devices (e.g., hard Disk, floppy Disk or tape, etc.), optical disks (e.g., compact Disk (CD), digital versatile Disk (DIGITAL VERSATILE DISK, DVD), etc.), smart cards, and flash Memory devices (e.g., erasable programmable read-Only Memory (EPROM), card, stick, or key drive, etc.). Various computer-readable storage media described in this disclosure may represent one or more devices and/or other machine-readable storage media for storing information. The term "machine-readable storage medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

The disclosed embodiments provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the resource indication method as described in any of the above embodiments.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any changes or substitutions within the technical scope of the disclosure should be covered by the protection scope of the disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method of resource indication, applied to a first node, the method comprising:

determining reference signal resources in a reference signal dedicated resource pool, and determining a reference signal resource set based on the determined reference signal resources;

And sending first information to a second node, wherein the first information is used for indicating the reference signal resource set and the reference signal resources in the reference signal resource set for the second node.

2. The method of claim 1, wherein the determining the reference signal resources in the reference signal dedicated resource pool comprises:

Determining the reference signal resources in the reference signal dedicated resource pool based on scheduling information of a base station; or alternatively

Determining the reference signal resources based on the sensing result of the first node in the reference signal dedicated resource pool; or alternatively

And determining the reference signal resources in the reference signal dedicated resource pool in a random selection mode.

3. The method of claim 1, wherein the sending the first information to the second node comprises:

And sending the first information to the second node in a data resource pool.

4. The method of claim 3, wherein the first information is carried in at least one of PC5RRC signaling or MAC CE.

5. A method according to claim 3, wherein the first information comprises at least one of:

Time-frequency resource positions 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 set of reference signal resources;

a period of the reference signal resource;

a time slot offset within the 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 a starting time slot and position information of a starting frequency domain of a reference signal in aperiodic reference signal resources in the reference signal resource set;

A reference signal resource set of an active state;

index of each reference signal resource in the reference signal resource set;

An index of the reference signal resource for beam measurement;

an index of the reference signal resource set;

position information of time-frequency domain resources among reference signal resources for beam measurement;

the time-frequency position information or the control channel index of the control channel associated with the reference signal resource for beam measurement;

The position of the reference signal resource corresponding to the wave beam information in the data resource pool;

index of reference signal resource corresponding to the wave beam information in the data resource pool;

carrier index of the reference signal dedicated resource pool;

A resource pool index of the reference signal dedicated resource pool;

And the time-frequency resource allocation information of the reference signal dedicated resource pool.

6. A method according to claim 3, characterized in that the method further comprises:

Based on the first information, information of reference signal resources for measurement is indicated to the second node, the measurement comprising at least one of: link measurement, beam measurement, channel measurement.

7. A method according to claim 3, characterized in that the reference signal dedicated resource pool and the data resource pool are network configured or preconfigured.

8. The method of claim 1, wherein the sending the first information to the second node comprises:

and transmitting the first information to the second node in the reference signal dedicated resource pool.

9. The method of claim 8 wherein the first information is carried in the SCI.

10. The method of claim 8, wherein the first information comprises at least one of:

The on state of the beam repetition;

The period indication information of the reference signal;

indication information of resource positions of control channels in other time slots in the period of the reference signal;

A source identification;

a destination mark;

the number of beams or reference signals transmitted periodically or aperiodically;

A starting index of a beam or a reference signal in a current slot;

The number of beams or reference signals in the current slot.

11. The method of claim 8, wherein the method further comprises:

and indicating spatial beam information of channels or signals in a data resource pool to the second node based on the first information.

12. The method of claim 1, wherein the reference signal resources comprise at least one of: 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.

13. The method of 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.

14. The method of claim 12, wherein the set of reference signal resources comprises at least one of: a first set of reference signal resources, a second set of reference signal resources, a third set of reference signal resources, and a fourth set of reference signal resources; wherein the first set of reference signal resources comprises all or part of the first reference signal resources; the second set of reference signal resources includes all or part of the resources of the second reference signal resources; the third set of reference signal resources includes all or part of the third reference signal resources; the fourth set of reference signal resources 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 method of resource indication, for use with a second node, the method comprising:

receiving first information sent by a first node, wherein the first information is used for indicating a reference signal resource set and reference signal resources in the reference signal resource set, and the reference signal resource set comprises reference signal resources determined by the first node in a reference signal dedicated resource pool;

Based on the first information, the set of reference signal resources and reference signal resources within the set of reference signal resources are determined.

16. The method of claim 15, wherein the receiving the first information sent by the first node comprises:

and receiving the first information sent by the first node in a data resource pool.

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

18. The method of claim 16, wherein the first information comprises at least one of:

a period of the reference signal resource;

a time slot offset within the period of the reference signal resource;

An index of the reference signal resource;

A source identifier corresponding to the reference signal resource;

A reference signal resource set of an active state;

index of each reference signal resource in the reference signal resource set;

An index of the reference signal resource for beam measurement;

an index of the reference signal resource set;

carrier index of the reference signal dedicated resource pool;

A resource pool index of the reference signal dedicated resource pool;

19. The method of claim 16, wherein the method further comprises:

determining information of reference signal resources for measurement based on the first information and an indication of the first node, the measurement comprising at least one of: link measurement, beam measurement, channel measurement.

20. The method of claim 16, wherein the reference signal dedicated resource pool and the data resource pool are network configured or preconfigured.

21. The method of claim 15, wherein the receiving the first information sent by the first node comprises:

And receiving the first information sent by the first node in the reference signal dedicated resource pool.

22. The method of claim 21 wherein the first information is carried in the SCI.

23. The method of claim 21, wherein the first information comprises at least one of:

The on state of the beam repetition;

The period indication information of the reference signal;

A source identification;

a destination mark;

A starting index of a beam or a reference signal in a current slot;

The number of beams or reference signals in the current slot.

24. The method of claim 21, wherein the method further comprises:

based on the first information and the indication of the first node, spatial beam information of channels or signals in a data resource pool is determined.

25. The method of claim 15, wherein the reference signal resources comprise at least one of: 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.

26. The method of claim 25, wherein the first reference signal resource is one of a periodic resource or a semi-persistent resource;

27. The method of claim 25, wherein the set of reference signal resources comprises at least one of: a first set of reference signal resources, a second set of reference signal resources, a third set of reference signal resources, and a fourth set of reference signal resources; wherein the first set of reference signal resources comprises all or part of the first reference signal resources; the second set of reference signal resources includes all or part of the resources of the second reference signal resources; the third set of reference signal resources includes all or part of the third reference signal resources; the fourth set of reference signal resources 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 which when executing a computer program implements the resource indication method of any of claims 1 to 14 or implements the resource indication method of any of claims 15 to 27.

29. A computer-readable storage medium, the computer-readable storage medium comprising computer instructions; wherein the computer instructions, when executed, implement the resource indication method of any of claims 1 to 14, or the resource indication method of any of claims 15 to 27.