WO2020019774A1

WO2020019774A1 - Resource pool configuration method, apparatus and system

Info

Publication number: WO2020019774A1
Application number: PCT/CN2019/083698
Authority: WO
Inventors: 杨瑾; 毕峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-07-23
Filing date: 2019-04-22
Publication date: 2020-01-30
Also published as: CN110753355A

Abstract

Disclosed are a resource pool configuration method, apparatus and system. The resource pool configuration method comprises: a first node obtaining resource pool configuration information, wherein the resource pool configuration information comprises at least one of the following: a resource configuration indication of a resource pool, and state information of the resource pool; and the first node determining the state of the resource pool, wherein the state of the resource pool is an active state or an inactive state. By means of the embodiments of the present disclosure, the flexible configuration of a resource pool can be realized.

Description

Method, device and system for configuring resource pool

Technical field

The embodiments of the present disclosure relate to, but are not limited to, the field of communications, and in particular, to a method, an apparatus, and a system for configuring a resource pool.

Background technique

With the development of wireless communication technology and the increasing demand of users for communication, in order to meet higher, faster and newer communication needs, the fifth generation mobile communication (5G, 5th Generation) technology has become the trend of future network development.

In 5G systems, due to the frequency band resources used by the system, network deployment requirements, and other factors, the deployment density of 5G base stations (gNB or ng-eNB) is high, and some of these base stations do not have a direct connection to the core network. In order to achieve lower network laying costs, while providing stable network services, obtaining higher resource efficiency, and network deployment flexibility, it is necessary to establish wireless backhaul link connections between base stations. As shown in Figure 1, gNBB and gNBC are not directly connected to the core network, so they cannot send information on the access link between the base station and the user terminal (UE, User Equipment) to the core network. . For the connection between the base station gNB A and the core network, by establishing a wireless backhaul link connection between gNB A and gNB B, gNB A and gNB C, base stations that are not directly connected to the core network (such as gNB B and gNB C ) Connected to gNB A through the backhaul link, thus indirectly connected to the core network. By forwarding through the backhaul link of gNB and A, gNB and B can provide information exchange between the served UE and the core network. At this time, in order to coordinate resources between base stations and avoid conflicts, corresponding resource pools need to be configured for each base station.

In a 5G communication system, it is also necessary to support a sidelink (Sidelink) communication method. Sidelink communication means that when services between UEs need to be transmitted, the service data between UEs does not pass through the network side, that is, does not pass through the cellular link between the UE and the base station, but is directly transmitted by the data source UE through Sidelink Transmission to the target UE. FIG. 2 is a schematic diagram of a related technology Sidelink communication structure. As shown in FIG. 2, this mode of direct communication between the UE and the UE has characteristics significantly different from that of a traditional cellular system communication mode. For a short distance where Sidelink communication can be applied, For communication users, Sidelink communication not only saves wireless spectrum resources, but also reduces the pressure of data transmission in the core network. It can reduce the occupation of system resources, increase the spectral efficiency of cellular communication systems, and reduce the power consumption of terminal transmission. Network operating costs.

In the 5G communication system, there is a need to flexibly configure a resource pool for different base stations or nodes, or different communication methods, service types, etc., and coordinate resource scheduling based on the resource pool. Currently, no effective solution has been proposed. In the 5G system, the resource pool configuration cannot be obtained on the backhaul link between the base stations, or in the functional requirements of Sidelink communication, so as to achieve effective resource utilization and information transmission. For such problems, no effective solution has been proposed.

Summary of the Invention

Embodiments of the present disclosure provide a method, an apparatus, and a system for configuring a resource pool, which can implement flexible configuration of the resource pool.

An embodiment of the present disclosure provides a method for configuring a resource pool, including:

The first node obtains resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool;

The first node determines a state of the resource pool, and the state of the resource pool is an active state or an inactive state.

In an embodiment of the present disclosure, the method further includes:

The first node schedules or competes for selection of resources in an activated resource pool, and the scheduled or selected resources are used for transmission of signals on an associated link that includes using resources in the resource pool The link through which the signal is transmitted.

In an embodiment of the present disclosure, the method further includes:

The first node sends a status of the resource pool to a fourth node.

In the embodiment of the present disclosure, the first node obtaining the resource pool configuration information includes at least one of the following:

Obtaining, by the first node, the resource pool configuration information according to the pre-configuration information;

The first node obtains the resource pool configuration information according to an instruction.

In the embodiment of the present disclosure, the resource pool configuration information includes at least one of the following:

The period of the resource pool;

The number and location of time domain resource units contained in the resource pool during a resource pool period;

The number and location of frequency domain resource units included in the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.

In the embodiment of the present disclosure, the type of the time domain resource unit includes any one of the following: downlink resources, uplink resources, and flexible resources.

In the embodiment of the present disclosure, the first node determining the state of the resource pool includes at least one of the following:

Determining, by the first node, the status of the resource pool;

Determining, by the first node, the status of the resource pool according to the pre-configured resource pool status information;

The first node determines a status of the resource pool according to the indicated resource pool status information.

In the embodiment of the present disclosure, the first node determining and determining the status of the resource pool includes:

Determining, by the first node, the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the first node;

The number of nodes having a wireless link with the first node;

The number of nodes where the first node communicates on the associated link;

A traffic demand of a node that communicates with the first node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link.

In the embodiment of the present disclosure, the state information of the resource pool includes at least one of the following:

State inversion information of the resource pool;

The state of the resource pool within a period;

The state of the resource pool within a predetermined time, the predetermined time includes any one of the following: k cycles, k time-domain units, and k is an integer greater than or equal to 1;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

In the embodiment of the present disclosure, the determining, by the first node according to the indicated resource pool status information, the status of the resource pool further includes:

The first node determines the resource pool corresponding to the state information of the resource pool according to an index relationship, wherein the index relationship includes a one-to-one correspondence between the state information of the resource pool and the resource pool.

The second node determines and indicates the resource pool configuration information, where the resource pool configuration information includes at least one of the following: resource resource indication of the resource pool, status information of the resource pool, and the status of the resource pool is active or inactive Active state.

In the embodiment of the present disclosure, it further includes:

The second node schedules resources in an activated resource pool and indicates the scheduled resources. The scheduled resources are used for transmission of signals on an associated link, and the associated link includes using the resource pool. Resources for signalling the link.

In the embodiment of the present disclosure, the second node determining the resource pool configuration information includes at least one of the following:

The second node configuration, determining the resource pool configuration information;

Determining, by the second node, the resource pool configuration information according to an instruction;

The second node determines the resource pool configuration information according to the pre-configuration information.

In the embodiment of the present disclosure, the configuration of the second node and determining the resource pool configuration information includes:

Determining, by the second node, the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the second node;

The number of nodes having a wireless link with the second node;

The number of nodes that the second node communicates on the associated link;

A traffic demand of a node communicating with the second node on the associated link;

A traffic demand of a third node, where the third node is a node that uses resources in the resource pool to communicate on the associated link;

The number of nodes communicating with the third node on the associated link;

A traffic demand of a node communicating with the third node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link;

Resource pool configuration information of a neighboring node of the third node;

State information of a resource pool of a neighboring node of the third node;

A measurement feedback report of the third node;

A resource request of the third node.

The period of the resource pool;

The number and position of time domain resource units included in the resource pool during one period of the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.

In the embodiment of the present disclosure, the second node indicating the resource pool configuration information includes:

The second node indicates the resource pool configuration information through at least one of the following: high-level signaling, physical layer signaling, and configuration signaling; wherein,

The high-level signaling includes at least one of the following: a radio resource control message and a media access control element;

The physical layer signaling includes at least one of the following: downlink control information, uplink control information, backhaul link control information, and edge link control information.

State inversion information of the resource pool;

The state of the resource pool in a period;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

In the embodiment of the present disclosure, the second node indicating the status information of the resource pool includes:

The second node indicates status information of the resource pool corresponding to the resource pool according to an index relationship, wherein the index relationship includes a one-to-one correspondence between the resource pool status information and the resource pool.

An embodiment of the present disclosure provides a device for configuring a resource pool, including:

The obtaining module is configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of the following: resource resource indication of the resource pool, status information of the resource pool, and the status of the resource pool is active or inactive Active state

The first determining module is configured to determine a state of the resource pool.

The second determining module is configured to determine resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indicator of the resource pool, status information of the resource pool, and the status of the resource pool is an active state Or inactive

The instruction module is configured to indicate the resource pool configuration information.

An embodiment of the present disclosure provides a device for configuring a resource pool, including a processor and a computer-readable storage medium. The computer-readable storage medium stores instructions. When the instructions are executed by the processor, the foregoing tasks are implemented. A resource pool configuration method.

An embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any one of the foregoing resource pool configuration methods are implemented.

An embodiment of the present disclosure proposes a resource pool configuration system, including:

The first node is configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of: a resource configuration indication of the resource pool, and status information of the resource pool; determining the status of the resource pool, the The status of the resource pool is active or inactive;

The second node is configured to determine and indicate resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool.

Embodiments of the present disclosure include: a first node obtains resource pool configuration information, and the resource pool configuration information includes at least one of: a resource configuration indication of a resource pool, and status information of the resource pool; the first node determines the resource The state of the pool, and the state of the resource pool is active or inactive. The embodiments of the present disclosure enable flexible configuration of a resource pool.

Other features and advantages of the embodiments of the present disclosure will be explained in the following description, and will become partially obvious from the description, or be understood by implementing the embodiments of the present disclosure. The objects and other advantages of the embodiments of the present disclosure can be achieved and obtained by the structures specifically pointed out in the description, the claims, and the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings are used to provide a further understanding of the technical solutions of the embodiments of the present disclosure, and constitute a part of the specification. They are used to explain the technical solutions of the embodiments of the present disclosure together with the examples of the embodiments of the present disclosure, and do not constitute technical solutions of the embodiments of the present disclosure limits.

FIG. 1 is a schematic structural composition diagram of establishing a backhaul link between related technology base stations; FIG.

FIG. 2 is a schematic structural composition diagram of a related art Sidelink communication; FIG.

3 is a flowchart of a resource pool configuration method according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a time domain resource according to an embodiment of the present disclosure;

5 is a flowchart of a resource pool configuration method according to another embodiment of the present disclosure;

6 is a schematic diagram of resource pool configuration information of a backhaul link in Example 1 of the present disclosure;

7 is a first schematic diagram of a type configuration of a time domain resource unit of a resource pool of Example 1 of the present disclosure;

8 is a second schematic diagram of a type configuration of a time domain resource unit in a resource pool of Example 1 of the present disclosure;

9 is a schematic diagram of a status indication of a resource pool in Example 1 of the present disclosure;

FIG. 10 is a schematic diagram of the resource pool configuration information of Sidelink in Example 2 of the present disclosure; FIG.

11 is a schematic structural composition diagram of a resource pool configuration device according to another embodiment of the present disclosure;

12 is a schematic structural composition diagram of a resource pool configuration device according to another embodiment of the present disclosure;

FIG. 13 is a schematic structural composition diagram of a resource pool configuration system according to another embodiment of the present disclosure.

detailed description

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. It should be noted that, in the case of no conflict, the embodiments in the present disclosure and the features in the embodiments can be arbitrarily combined with each other.

The steps shown in the flowchart of the figures may be performed in a computer system such as a set of computer-executable instructions. And, although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than here.

Referring to FIG. 3, an embodiment of the present disclosure provides a method for configuring a resource pool, including:

Step 300: The first node obtains resource pool configuration information, and the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool.

In the embodiment of the present disclosure, the resource pool includes a set of dedicated time-frequency resources, and each resource pool includes at least one time domain resource unit in the time domain and at least one frequency domain resource unit in the frequency domain.

The time domain resource unit includes at least one of the following:

Symbol, slot, mini-slot.

The frequency domain resource unit includes a frequency domain resource block (RB, resource block).

In the 5G communication system, the minimum granularity of the time domain resources is a symbol. For example, it is divided into cyclic prefix orthogonal frequency division multiplexing symbols (CP-OFDM, Cyclic Prefix-OFDM Orthogonal Frequency Division Multiplex) or Discrete Fourier transform OFDM symbol (DFT-S-OFDM, Discrete Fourier Transform Spread OFDM).

A slot consisting of 12 long cyclic prefixes (extend CP, extended Cyclic Prefix) or 14 normal cyclic prefixes (normal CP) can form a slot, as shown in Figure 4; or, at least one continuous symbol (less than or equal to 7 symbols) can form a mini-slot.

The minimum granularity of frequency-domain resources is sub-carriers. According to different system configurations, each sub-carrier contains a different frequency-domain width. The frequency-domain width includes at least one of the following: 15 kilohertz (kHz), 30kHz, 60kHz , 120kHz, 240kHz. A frequency domain RB can be formed by 12 consecutive subcarriers.

As described above, a symbol or time slot or mini-slot is a time domain resource unit in a 5G system, and RB is a frequency domain resource unit. In the embodiment of the present disclosure, a time domain resource unit and a frequency domain resource unit in a 5G system are used as granularities to describe a configuration scheme of a resource pool.

In 5G systems, there are three types of time domain symbols: Downlink symbol (DL symbol), Uplink symbol (UL symbol), and Flexible symbol (X symbol). Each symbol in each slot can be configured as any of the 3 symbol types.

The time domain resource units included in the resource domain in the time domain may be continuous or discontinuous; the frequency domain resource units included in the frequency domain may be continuous or discontinuous.

In the embodiment of the present disclosure, the resource configuration indication of the resource pool may be a semi-static configuration, that is, the configured resource pool remains unchanged for a certain period of time or is a static configuration.

The first node obtains resource pool configuration information according to the pre-configuration information;

The first node obtains resource pool configuration information according to an instruction. By using other nodes (such as the second node) to coordinate the configuration of the resource pool, resource conflicts between the resource pools can be avoided.

In the embodiment of the present disclosure, the first node obtains at least one configured resource pool according to the resource pool configuration information, and the configured resource pool is also referred to as a resource pool of the first node.

The resource pool configured for the first node may be used for transmission of signals of any wireless link related to the first node or for transmission of signals of specific one or more wireless links related to the first node. Which wireless link signals can be specifically used by the resource pool for transmission of signals can be predefined, configured by the second node, or indicated in the resource pool configuration information.

When the resource pool of the first node is used for transmission of signals of any wireless link related to the first node, the resource pool of the first node may be used for transmission of wireless link signals between the first node and another node , And may also be used for transmission of a radio link signal between the first node and at least one UE. For example, when the first node is a base station, the resource pool can be used for transmission of signals of the backhaul link between this base station and other base stations, or for signals of the access link between this base station and the UE being served. When the first node is a UE, the resource pool can be used for transmission of Sidelink signals between the UE and other UEs; when the first node is a relay station, the resource pool can be used for the relay station and the base station. The transmission of signals of the backhaul link between the two or the relay link and the serving link.

When the resource pool of the first node is used for transmission of a signal of a specific wireless link related to the first node, the resource pool is configured as a dedicated resource pool of the specific wireless link, that is, arbitrary A resource pool can be configured as a dedicated resource pool for a specific wireless link. The wireless link here can be a backhaul link, or an access link, or a sidelink. The dedicated resource pool of a specific wireless link means that this resource pool can only be used for the bearer of signals on that specific wireless link. For example, base station A, as the first node, obtains a resource pool configuration from an Operation, Administration, and Maintenance (OAM, Operation, Administration, and Maintenance) manager, and this resource pool is configured as a dedicated backhaul link between base station A and base station B. Resource pool, this resource pool can only be used to carry the signals of the backhaul link between base station A and base station B, and cannot be used to transmit the signals of the access link between base station A and UE, nor can it be used Transmission of signals on the backhaul link between base station A and other base stations except base station B.

In an embodiment, at least one resource pool indicated in the resource pool configuration information may be configured as a dedicated resource pool on a specific wireless link of the first node, that is, multiple resources may be configured on the same wireless link. Resource pools.

The first node obtains a resource configuration instruction for at least one resource pool from the resource pool configuration information, and determines at least one of the following included in the configured resource pool according to the resource configuration instruction: time domain resources and frequency domain resources.

The period of the resource pool, that is, the period of the resource pool in the time domain;

The number and location of time domain resource units contained in a resource pool during a resource pool period;

The number and position of frequency-domain resource units (ie, frequency-domain RBs) included in the resource pool;

A type of a time domain resource unit in the resource pool;

The status of the resource pool.

The type of the time domain resource unit includes any one of the following: downlink resources, uplink resources, and flexible resources. The type of the time domain resource unit in the resource pool may be determined by the first node itself or indicated by the second node configuration. For example, the first node may determine and determine the type of the time domain resource unit according to the service requirements. The specific determination method is not used to limit the protection scope of the embodiment of the present disclosure, and details are not described herein again.

In the embodiment of the present disclosure, when the resource pool configuration information includes resource configuration indications of two or more resource pools, the resource configuration indications of different resource pools and / or status information of the resource pools are independent of each other.

For example, in the time domain, different resource pools can be configured with the same or different periods, and time domain resource units in different resource pools can overlap, that is, different resource pools contain some or all of the same time domain resource units; In the domain, the frequency domain resource units in different resource pools may overlap, that is, different resource pools include some or all of the same frequency domain RBs.

For another example, when different resource pools are configured to contain the same time domain resource unit, the same time domain resource unit may be indicated as a different time domain unit type in different resource pools.

Step 301: The first node determines a state of the resource pool, and the state of the resource pool is an active state or an inactive state.

In the embodiment of the present disclosure, the state of the resource pool includes an active state or an inactive state, that is, the resource pool can be set to an active state or an inactive state. Between multiple resource pools configured to the same node, each resource The status of the pool is independent. Here, the resource pool is a resource pool indicated to the first node in the resource pool configuration information.

The resource pool set to the active state can be further used for signal transmission or bearing. When this resource pool is configured as a dedicated resource pool for a specific wireless link and the resource pool is active, the resources in this resource pool can be used to send or receive signals for that specific wireless link.

In the embodiment of the present disclosure, the first node determining the status of the resource pool includes at least one of the following:

Determining, by the first node, the status of the resource pool;

Determining, by the first node, the status of the resource pool according to the status information of the pre-configured resource pool;

The first node determines the status of the resource pool according to the information of the status of the indicated resource pool.

By using other nodes (such as the second node or the resource pool state management master node) to coordinately determine the state of the resource pool, resource conflicts between resource pools in an activated state can be avoided.

The master node for resource pool status management includes any one of the following: a second node, a network-side entity, a base station, and a master node for resource management.

The first node determines the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the first node;

The number of nodes having a wireless link with the first node;

The number of nodes that the first node communicates on an associated link, where the associated link includes a link for signal transmission using resources in a resource pool;

Traffic demand on associated links;

The load on the associated link;

Channel measurement results for the associated link.

For example, the first node is configured with resource pool A and resource pool B as dedicated resource pools for the access link, and the number of time domain resource units included in resource pool A is greater than that in resource pool B. A node can determine the status of resource pool A and resource pool B according to the UE load of the access link. Exemplarily, when the load of the access link is low, resource pool B is activated and resource pool A is placed in an inactive state; when the load of the access link is high, resource pool A is activated, and Resource pool B is placed in an inactive state; when the load of the access link is very high, resource pools A and B are activated, and the resources in the two resource pools are used for signal transmission of the access link.

In an embodiment, after the first node judges the status of the corresponding resource pool, it can send the status of the resource pool to the fourth node, that is, the decision result can be indicated to the fourth node through signaling, such as any one of the following nodes: phase A neighboring base station, a neighboring relay station, a UE having a wireless link with the first node, a network-side entity, a resource management master node, and the like. For example, the first node may notify the fourth node of the status of the corresponding resource pool in a unicast, broadcast, or multicast manner through high-level signaling or physical layer signaling.

Among them, high-level signaling, such as a Radio Resource Control (RRC, Radio Resource Control) message, or a Media Access Control Element (MAC, CE, Control, CE, Control Element);

The physical layer signaling is downlink control information (DCI, Downlink Control Information) or uplink control information (UCI, Uplink Control Information), backhaul link control information, or side link control information (SCI).

Here, the determination result refers to the determination of the state of the at least one resource pool to which the first node belongs, that is, the information that the resource pool of the first node is in an activated state or an inactive state.

The resource management master node may be a base station, a relay station, etc., and is responsible for resource management coordination of multiple nodes within a certain range.

In the embodiment of the present disclosure, the specific strategy adopted by the first node to determine the state of the resource pool according to the foregoing information decision is not used to limit the protection scope of the embodiment of the present disclosure, and the embodiment of the present disclosure does not limit the specific strategy. I won't repeat them here.

In the embodiment of the present disclosure, when the first node determines the status of the resource pool according to the pre-configured or indicated status information of the resource pool, the status information of the resource pool may indicate the status of any one or more resource pools.

State inversion information of the resource pool;

The state of the resource pool within a period;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

The state rollover information of the resource pool instructs the resource pool to transition from the current state to another state. For example, when the indicated resource pool is currently activated, the state rollover information of the resource pool is understood to indicate the resource pool. Change to an inactive state and vice versa. The indicated resource pool remains in the current state until it receives the next state rollover information.

Among them, the state of the resource pool within one cycle means that the indicated resource pool is active or inactive only valid for one cycle. The period refers to a period of a corresponding resource pool in a time domain or an indication period of status information of the resource pool. The indication period of the status information of the resource pool may be configured by the system or predefined. When the status information of the resource pool indicates that the status of the corresponding resource pool is active, it means that the resource pool is set to the active state in the current cycle or the next cycle, and vice versa.

The status of the resource pool within the predetermined time indicates the status of the corresponding resource pool within the indicated predetermined time. The scheduled time includes any of the following:

Taking the period of the corresponding resource pool as a unit, the information indicating the status of the resource pool indicates that the status of the resource pool is active or inactive during k cycles;

Units are time domain units, for example, the predefined time domain units are time slots or subframes or radio frames, and the status information of the resource pool indicates that the status of the resource pools in the k time domain units is active or inactive. Active state.

When two or more resource pools are configured for the same node, the status information of the above resource pools needs to further distinguish the corresponding indicated resource pools, that is, the status information of the resource pools also includes identification information of the resource pools. The identification information of the resource pool includes any of the following:

The resource pool index number, and information about a mapping relationship with the resource pool.

That is, the resource pool is indicated by a resource pool index number (index), or the resource pool is indicated by information that has a mapping relationship with the resource pool.

When a resource pool is indicated by a resource pool index number, multiple resource pools on the same node can define corresponding resource pool index numbers one by one in order, and the resource pool status information can be determined by the resource pool index number and the The status information of the configured resource pool indicates the status of the corresponding resource pool.

The status information of the resource pool obtained by the first node may indicate status configuration indications of one or more resource pools, and the corresponding status indications are distinguished by corresponding resource pool index numbers.

When the resource pool is indicated by information having a mapping relationship with the resource pool, the resource pool is indicated by an implicit index relationship; the first node may receive resources used by the status information of the resource pool, or a wireless network temporary identifier (RNTI, Radio Network) Temporary Identifier), or search space, or time domain resource location, etc., implicitly determine the resource pool corresponding to the status indication information of this resource pool according to a predefined rule, so as to determine the status of the indicated resource pool.

In another embodiment of the present disclosure, the determining, by the first node according to the indicated resource pool status information, the status of the resource pool further includes:

The first node determines a resource pool corresponding to the state information of the resource pool according to the index relationship, where the index relationship includes a one-to-one correspondence between the state information of the resource pool and the resource pool.

In another embodiment of the present disclosure, the method further includes:

Step 302: The first node schedules or selects resources in an activated resource pool, and the scheduled or selected resources are used for signal transmission on an associated link. The associated link includes using the resources in the resource pool for signal transmission. link.

In the embodiments of the present disclosure, the first node may schedule resources in an activated resource pool or schedule resources in an activated resource pool according to an indicated configuration of the resource, or compete in the activated resource pool. Select a resource; resources in an inactive resource pool are not available.

The way of coordinating scheduling resources by other nodes (such as the second node) can avoid the conflict of the scheduled resources.

The first node may use the scheduled or competitively selected resources to schedule a bearer for signal transmission on the corresponding link.

The first node schedules resources in an activated resource pool. Specifically, the first node schedules using one or more of the time domain resource units and the time domain resources and frequency domain resources contained in the resource pool. Frequency domain resource unit, used for signal transmission on the corresponding link.

When the activated resource pool is a dedicated resource pool for a specific wireless link, the first node schedules resources in this resource pool for signal transmission between the nodes of the specific wireless link; or, here The resource pool competes to select resources for signal transmission with the corresponding nodes.

For example, when the resource pool A is a dedicated resource pool of an access link between the first node and the served UE, and is configured as an active state, the first node schedules the resources in the resource pool A to perform signaling with the UE. Transmission examples include at least one of the following:

The first node sends a downlink signal of the access link to the UE;

The first node schedules uplink resources for the UE to access the link, and receives uplink signals from the UE on the corresponding resources.

As another example, when the resource pool B is a dedicated resource pool for the backhaul link between the first node and the base station B, and is configured as an active state, the first node schedules the resources in the resource pool B to perform signal transmission with the base station B. Transmission examples include at least one of the following:

The first node sends a downlink signal of the backhaul link to the base station B;

The first node schedules uplink resources of the backhaul link for the base station B, and receives uplink signals from the base station B on the corresponding resources.

At this time, the base station B may be a child node of the first node.

As another example, the first node is a UE. When the resource pool C is a dedicated resource pool for Sidelink communication between the first node and surrounding UEs, and the resource pool C is configured as an active state, the first node passes in the resource pool C It competes to select a resource, and sends a Sidelink signal on the selected resource, and other UEs perform detection and reception in resource pool C.

Referring to FIG. 5, another embodiment of the present disclosure provides a method for configuring a resource pool, including:

Step 500: The second node determines and indicates the resource pool configuration information. The resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, status information of the resource pool, and the status of the resource pool is an active state or Inactive.

In the embodiment of the present disclosure, the resource configuration indication of the resource pool may be a semi-static configuration, that is, the configured resource pool remains unchanged for a certain period of time, or is a static configuration.

The second node configuration, determining resource pool configuration information;

Determining, by the second node, resource pool configuration information according to an instruction;

The second node determines resource pool configuration information according to the pre-configuration information.

That is, the resource pool configuration information indicated by the second node can be determined by the configuration of the second node itself; or, the second node can obtain it according to the instructions of other nodes (such as the network-side entity); or, the second node can use the pre-configuration information obtain.

Wherein, the resource pool indicated in the resource pool configuration information indicated by the second node is indicated to the third node for use by the third node on the associated link, and the corresponding resource pool may also be referred to as the resource pool of the third node The third node may be the first node or another node.

The resource pool configured for the third node may be used for transmission of signals of any wireless link related to the third node, or used for transmission of signals of specific one or more wireless links related to the third node. . Which wireless link signal transmission of the resource pool of the third node may be specifically defined, configured by the second node, or indicated in the resource pool configuration information.

When the resource pool of the third node is used for transmission of signals of any wireless link related to the third node, the resource pool of the third node can be used for transmission of wireless link signals between the third node and another node , And may also be used for transmission of a radio link signal between a third node and at least one UE. For example, when the third node is a base station, the resource pool can be used for transmission of signals of the backhaul link between this base station and other base stations, or for signals of the access link between this base station and the served UE. When the third node is a UE, the resource pool can be used for transmission of Sidelink signals between this UE and other UEs; when the third node is a relay station, the resource pool can be used for this relay station and the base station The transmission of signals of the backhaul link between the two or the relay link and the serving link.

When the resource pool of the third node is used for signal transmission of a specific wireless link, the resource pool is configured as a dedicated resource pool of the specific wireless link, that is, any resource pool can be A dedicated resource pool configured as a specific wireless link. The wireless link here can be a backhaul link, or an access link, or a sidelink. The dedicated resource pool of a specific wireless link means that this resource pool can only be used for carrying signals on the specific wireless link. For example, as the third node, base station A obtains the resource pool configuration from the second node (resource management node), and this resource pool is configured as a dedicated resource pool for the backhaul link between base station A and base station B, then this resource pool is only Can be used to transmit signals for the backhaul link between base station A and base station B. It cannot be used to transmit signals for the access link between base station A and UE, nor can it be used for base station A and other than base station B. Transmission of signals from backhaul links between other base stations.

In an embodiment, at least one resource pool indicated in the resource pool configuration information may be configured as a dedicated resource pool on a specific wireless link, that is, multiple resource pools may be configured on the same wireless link.

The resource pool indicated by the second node in the resource pool configuration information includes time domain resources and / or frequency domain resources, respectively.

In the embodiment of the present disclosure, the configuration information of the resource pool includes at least one of the following:

A type of a time domain resource unit in the resource pool;

The status of the resource pool.

The type of the time domain resource unit includes any one of the following: downlink resources, uplink resources, and flexible resources. The type of the time domain resource unit in the resource pool may be determined by the first node itself. For example, the first node may determine and determine the type of the time domain resource unit according to the service requirements. The specific determination method is not used to limit the protection scope of the embodiment of the present disclosure, and details are not described herein again.

In the embodiment of the present disclosure, when the resource pool configuration information includes resource configuration indications of two or more resource pools, the resource configuration indications of different resource pools are independent of each other.

In the embodiment of the present disclosure, the state of the resource pool includes an active state or an inactive state, that is, the resource pool can be set to an active state or an inactive state. Between multiple resource pools configured to the same node, each resource The state of the pool is independent. Here, the resource pool is a resource pool indicated to the first node in the resource pool configuration information.

In the embodiment of the present disclosure, when the second node is configured and the resource pool configuration information is determined, the second node determines the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the second node;

The number of nodes having a wireless link with the second node;

The number of nodes that the second node communicates on an associated link, where the associated link is a link for signal transmission using resources in the resource pool;

The number of nodes communicating with the third node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link;

State information of a resource pool of a neighboring node of the third node;

A measurement feedback report of the third node;

A resource request of the third node.

For example, the first node is configured with resource pool A and resource pool B as dedicated resource pools for the access link, and the number of time domain resource units included in resource pool A is greater than that in resource pool B. The two nodes may determine the states of the resource pool A and the resource pool B according to the UE load of the access link of the first node. Exemplarily, when the load of the access link of the first node is low, the resource pool B is activated and the resource pool A is placed in an inactive state; when the load of the access link of the first node is high , Activate resource pool A and put resource pool B into an inactive state; when the load load of the first node's access link is very high, activate resource pools A and B while using the resources in the two resource pools for Signaling of the access link.

In the embodiment of the present disclosure, the specific strategy adopted by the second node to determine the status of the resource pool according to the foregoing information judgment is not used to limit the protection scope of the embodiment of the present disclosure. The embodiment of the present disclosure does not limit the specific policy, and does not limit it here. More details.

When the second node determines the status of the resource pool according to the indication, the status information of the resource pool may indicate the status of any one or more resource pools.

State inversion information of the resource pool;

The state of the resource pool within a period;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

Among them, the state of the resource pool in one cycle means that the indicated resource pool is set to the active state or inactive state and is valid only in one cycle. The period refers to a period in a time domain of the corresponding resource pool, or an indication period of information indicating a state in which the resource pool is located. The indication period of the information indicating the status of the resource pool may be configured by the system or predefined. When the information indicating the state of the resource pool indicates that the state of the corresponding resource pool is active, it means that the resource pool is set to the active state in the current cycle or the next cycle, and vice versa.

Take the time domain unit as a unit, for example, the predefined time domain unit is a time slot, or a subframe, or a radio frame, and the status information of the resource pool indicates that the status of the resource pool in the k time domain units is active. Status or inactive status.

When two or more resource pools are configured for the same node, the status information of the above resource pools needs to further distinguish the corresponding indicated resource pools, that is, the status information of the resource pools also includes identification information of the resource pools. The resource pool information includes any of the following:

When a resource pool is indicated by a resource pool index number, multiple resource pools of the same node can define corresponding resource pool index numbers one by one in order, and the information indicating the status of the resource pool can be determined by the resource pool index number. And the configured status information indicates the status of the corresponding resource pool.

The status information of the resource pool received by the first node may indicate the status configuration indication of one or more resource pools, and the corresponding status indication is distinguished by the corresponding resource pool index number.

When the resource pool is indicated by the information that has a mapping relationship with the resource pool, the resource pool is indicated by the implicit index relationship; the first node may receive the resource used to indicate the status information of the resource pool, or the RNTI, or the search space, or The domain resource location, etc., implicitly determines the resource pool corresponding to the information indicating the status of the resource pool according to a predefined rule, thereby determining the status of the indicated resource pool.

The second node indicates resource pool configuration information through at least one of the following: high-level signaling, physical layer signaling, and configuration signaling.

The high-level signaling includes at least one of the following: an RRC message, and a MAC CE;

The physical layer signaling includes at least one of the following: DCI, UCI, backhaul link control information, and SCI.

The second node may indicate the resource pool configuration information in a unicast, broadcast, or multicast manner.

In another embodiment of the present disclosure, the method further includes:

Step 501: The second node schedules resources in an activated resource pool, and instructs the scheduled resources, and the scheduled resources are used for transmission of signals on the associated link. Associated links include links that use resources in the resource pool for signal transmission.

In the embodiment of the present disclosure, the second node may schedule resources in the active resource pool, instruct the third node to perform signal transmission on the corresponding link, and resources in the inactive resource pool cannot be used.

When the activated resource pool is a dedicated resource pool for a specific wireless link, the second node schedules resources in this resource pool for signal transmission between nodes of the specific wireless link.

Wherein, the second node schedules resources in the activated resource pool, specifically, when the second node schedule instructs the third node to use one or more of the time domain resources and frequency domain resources contained in the resource pool. The domain resource unit and the frequency domain resource unit perform signal transmission on corresponding links.

The second node dynamically or semi-statically schedules resources in the activated resource pool, and indicates the configuration of the scheduled resources by at least one of the following: high-level signaling, physical layer signaling.

In the embodiment of the present disclosure, the first node, the second node, the third node, and the fourth node may be any nodes, for example, they may be any of the following: a network-side entity, a base station, and a user equipment (UE, User Equipment) , Relay station, any node for wireless link communication, master node for resource management, master node for resource pool status management.

The fourth node may be a second node or another node, such as any of the following: an adjacent base station, an adjacent relay station, a UE having a wireless link with the first node, a network layer entity, a resource management master node, and a resource pool status Manage master nodes and more.

Among them, the resource management master node may be a base station, a relay station, etc., and is responsible for the resource management coordination of multiple nodes within a certain range.

The network-side entity may include, but is not limited to, any of the following: a 5G system base station (gNB or ng-eNB), an evolved base station (eNB, Evolved NodeB), a relay station (RN), a cell cooperation entity (MCE), and a gateway ( GW, Gateway), mobility management equipment (MME, Mobility Management Entity), operation management and maintenance (OAM, Operation Administration and Maintenance) manager.

In the embodiment of the present disclosure, the transmission includes at least one of the following: sending and receiving.

The resource pool configuration method in the embodiment of the present disclosure can be applied to different scenarios and requirements. The following uses the first node and the second node as base stations as examples to illustrate the application of the resource pool configuration method in the embodiment of the present disclosure to implement a backhaul chain between base stations. Channel resource pool configuration, and the resource pool configuration of the access link between the base station and the UE, as in Example 1; and using the first node as the UE as an example to explain the application of the resource pool configuration method of the embodiment of the present disclosure to achieve Sidelink communication between UEs Resource pool configuration, such as Example 2. Obviously, those skilled in the art should understand that the solutions provided by the embodiments of the present disclosure are not limited to the above application scenarios and requirements.

Example 1

In a 5G communication system, a base station is used as a network side device of a wireless access network, and there are two types: gNB and ng-eNB. Both provide different types of service interfaces to the UE, and both can connect to the 5G core network and achieve data interaction with the core network. The two can also be collectively referred to as NG Radio Access Network (NG-RAN, NG Radio Access Network) nodes, and the interface between base stations, that is, the interface between NG-RAN nodes is called Xn interface. In the example, the gNB is taken as an example for description, and the ng-eNB can also apply any scheme in the embodiments of the present disclosure.

As shown in FIG. 1, gNB A is directly connected to the core network, and UE A serving it is connected to gNB A through an access link, so that UE A can realize information interaction with the core network through gNB A. For gNBB and gNBC not directly connected to the core network, you need to establish a backhaul link with gNBA to forward the information of the served UEB and UEC through the backhaul link, that is, It is indirectly connected to the core network through gNB and A, thereby realizing information exchange between the served UE and the core network. It can be seen that backhaul link connections are established between gNB A, gNB B, and gNB C. In order to avoid signal interference between the backhaul links, the backhaul link AB (the wireless link between gNB A and gNB B) Channel) and the backhaul link AC (the wireless link between gNB and A).

(1) gNB A obtains the resource pool configuration information of the backhaul link AB and the resource pool configuration information of the backhaul link AC from the network side, sends the resource pool configuration information of the backhaul link AB to gNB, and sends the backhaul link AC The resource pool configuration information is sent to gNB.

As shown in Figure 1, gNB A is directly connected to the core network, and can also be called an anchor node. GNB A obtains the resource pool configuration information of the backhaul link from the core network, that is, it obtains the resource pool from the network-side entity. Resource allocation instructions. The resource pool configuration information includes the resource pool configuration information of the backhaul link AB and the resource pool configuration information of the backhaul link AC. The resource management function entity of the core network indicates the resource pool configuration information to gNB A through signaling.

The gNB A receives the resource pool configuration information, and obtains the resource configuration indication of the resource pool of the backhaul link AB and the resource configuration indication of the resource pool of the backhaul link AC. The network side configures the resource pool A and the backhaul link AB. In resource pool B, resource pool C and resource pool D are configured for the backhaul link AC.

The resource pool configuration information indicates the time domain resources and frequency domain resources included in each configured resource pool. The resource pool is periodic. Within the indicated period, time-domain resources are in units of slots, indicating the number and location of the configured slots. On the slots included in the resource pool, each slot contains the same frequency-domain resources. The resource pool configuration information indicates the number and location of the configured RBs.

Among them, resource pool A and resource pool B are configured with different cycles, and there are partially overlapping slots in the time domain. Resource pool C and resource pool D are configured with different cycles, and the slots they contain do not overlap at all, which can also be called resources. Pool C and resource pool D contain orthogonal resources in the time domain, as shown in Figure 6.

According to the above resource pool configuration information, gNB A obtains resource pool configuration information for two types of backhaul links. gNB A further instructs gNB B and gNB C on the backhaul link by corresponding resource pool configuration through high-level signaling. Exemplarily, gNB A indicates the resource pool configuration of backhaul link AB to gNB B, that is, the resource pool configuration information of resource pool A and resource pool B; gNB A indicates the resource pool configuration of backhaul link AC to gNB C, that is, Resource pool configuration information for resource pool C and resource pool D. From the perspective of gNB and gNB, it is receiving high-level signaling from gNB and A to obtain the resource pool configuration information of the backhaul link, which indicates the period of the corresponding resource pool, the time domain resources and frequency domain resources included Configuration.

(2) gNB A configures the type of time domain resource unit in resource pool A and resource pool B, and determines the status of resource pool A and resource pool B, and instructs gNB B's resource pool A and resource pool B. The type of time domain resource unit and the status of resource pool A and resource pool B.

Exemplarily, gNB A indicates to gNB B the type of the time domain resource unit included in resource pool A and resource pool B, that is, the symbols indicating that each slot in the resource pool is a DL symbol, an UL symbol, or an X symbol. As shown in FIG. 7, gNB A instructs gNB B through high-level signaling, which is the configuration of symbol types on each slot included in resource pools A and B. The configuration of the type of the time domain resource unit is a semi-static configuration, and reconfiguration is instructed by gNB A through signaling.

Exemplarily, gNB A determines the status of resource pool A and resource pool B according to the service requirements of gNB b and the channel measurement report (that is, the channel measurement result) of the backhaul link AB fed back from gNB b to gNB. Exemplarily, when resource pool B can meet the service requirements on the backhaul link AB, gNB A indicates that resource pool B is active and resource pool A is inactive; when the resource demand of gNB B increases or the channel measurement results When it deteriorates, gNB A instructs gNB B to activate resource pool A, while deactivating resource pool B, that is, setting it to an inactive state.

In one embodiment, according to the determination of the state of the resource pool, gNB A instructs gNB B through MAC CE to determine the states of resource pool A and resource pool B. In the MAC CE, gNB A instructs gNB B that resource pool A is set to an inactive state, and resource pool B is set to an active state. When gNB A changes the configuration of the state of the resource pool on backhaul link AB, the corresponding state is reconfigured through MAC CE. gNB receives the corresponding MAC and CE instructions from gNB A, obtains the status information of resource pools A and B, and uses the active resource pool to send and receive backhaul link signals with gNB A.

(3) The gNB C configures the type of the time domain resource unit in the resource pool C and the resource pool D, and decides to determine the states of the resource pool C and the resource pool D.

Exemplarily, gNB C determines the type of the corresponding time domain resource unit in resource pool C and resource pool D according to the service requirements of its own backhaul link, as shown in FIG. 8.

Exemplarily, gNB C determines the status of the corresponding resource pool according to its service requirements on the backhaul link AC and the amount of resources contained in resource pool C and resource pool D. Exemplarily, when resource pool D can meet the service requirements on the backhaul link AC, gNB c determines to use resource pool D, that is, set resource pool D to the active state and set resource pool C to the inactive state; when backhaul When the service demand on the link AC increases, gNB C further activates resource pool C, that is, resource pool C and resource pool D are used simultaneously for backhaul link information transmission with gNB A.

In one embodiment, the gNB C indicates the status of the determined resource pool C and the resource pool D to gNB A through UCI. In the UCI, gNB C indicates to gNB A that resource pool C is set to an inactive state, and resource pool D is set to an active state. When gNB C changes the configuration of the state of the resource pool on the backhaul link AC, it then updates the corresponding resource pool state change to gNB A through UCI. gNB A receives corresponding UCI feedback from gNB C, obtains the status information of resource pool C and resource pool D, and uses the active resource pool to send and receive backhaul link signals with gNB c.

(4) The network side determines the status of the resource pool. The resource management master node indicates the status of the resource pool to gNB A, and gNB A indicates the status of the resource pool to gNB B and gNB C.

Exemplarily, the network side (such as the resource management master node) configures the initial state of the resource pool in the resource pool configuration information. Set resource pool B and resource pool D to the active state, and resource pool A and resource pool C to the inactive state.

In one embodiment, according to the service demand information fed back from the gNB A to the resource management master node, the network side can configure and adjust the status of the corresponding resource pool. The resource management master node instructs gNB A to update the status of the resource pool, and instructs the resource pool status inversion information. In the resource pool configuration information received by gNB A, resource pool A, resource pool B, resource pool C, and resource pool D can be numbered as resource pool index # 0, # 1, # 2, # 3, and resources in order. The management master node indicates to the gNB A that the state of the resource pool index # 0, # 3 is reversed. gNB A sets resource pool A to the active state and resource pool D to the inactive state according to the received resource pool configuration information.

In one embodiment, gNB A indicates to gNB B that the status of resource pool A is updated to the active state, and indicates to gNB C that resource pool D is deactivated.

(5) gNB A uses physical layer DCI signaling to indicate to gNB B and gNB C the status of the resource pool within a period.

In the DCI signaling, gNB A indicates to gNB B the corresponding resource pool index and the status of the resource pool in a period, for example, indicating that resource pool index # 0 corresponds to resource pool A, and the status of the resource pool in a period is active. The state, index # 1 corresponds to resource pool B, and the state of the resource pool in a period is inactive. As shown in FIG. 9, after receiving the DCI indication, gNB B obtains the state of the resource pool in one cycle, and sets the resource pool A to the active state according to the status indication in the next resource pool cycle. Pool B is inactive. After that, in the DCI received by gNB B, the configuration of resource pool B is indicated as the active state, and resource pool B is set to the active state on the next cycle of resource pool B. The cycle start positions of resource pool A and resource pool B may be different. When the DCI indicates the status configuration of multiple resource pools, the status configuration of the resource pool index and the corresponding resource pool may be indicated in the same DCI, or the status configuration of multiple resource pools may be indicated by multiple DCIs one by one.

(6) gNB A judges the status of the resource pool on the backhaul link AB, and indicates the status configuration of the resource pool to gNB B. In one embodiment, gNB A uses scheduling resources on the backhaul link AB for the information transmission of the backhaul link between gNB A and gNB using resources in the active resource pool.

When the active resource pool on the backhaul link AB is resource pool A, gNB A schedules downlink transmission for backhaul link AB on the downlink resources of resource pool A, that is, the resources required for the signal sent from gNB A to gNB B . gNB A instructs gNB B in the DCI to schedule the downlink resources of the backhaul link, and sends backhaul link information on the indicated resources to gNB B. Correspondingly, gNB B obtains the status information of the resource pool from gNB A, and detects and receives the backhaul chain signal of gNB A on the resources of the active resource pool. The gNB B receives the scheduling indication DCI of the gNB A blindly from the downlink slot of the resource pool A. In one embodiment, the scheduled backhaul link downlink resources are obtained from the DCI and received on the corresponding resources according to the scheduling indication. gNB A's downlink signal to obtain backhaul link data information.

In addition, gNB A can also instruct gNB B through the DCI to indicate the uplink resources of the backhaul link scheduled in the active resource pool, and instruct gNB B to carry the uplink information of the backhaul link on the indicated uplink resource and send it to gNB A. Correspondingly, gNB B blindly receives the scheduling indication DCI of gNB A from the downlink slot of resource pool A. In one embodiment, the uplink resources of the scheduled backhaul link are obtained from the DCI, and the corresponding Send uplink signals to gNB A on the uplink resources. The gNB A detects and receives the uplink signal of the gNB B on the indicated uplink resource, and obtains the uplink data information of the backhaul link from it.

(7) gNB C obtains resource pool configuration information from gNB A, where the configuration indicates the resources contained in the resource pool of the access link of gNB C, and the configuration information indicates that the configured resource pool E is active. According to the resource pool configuration information, gNB C uses the resources in resource pool E to provide cellular network communication services for UEs on its access link.

On resource pool E, gNB and C schedule downlink and uplink resources for the UE. The gNBC schedules downlink transmissions for the UE on the downlink resources of the resource pool E, that is, the resources needed for gNB C to send signals to the UE. The gNB CC instructs the UE on the downlink resources of the scheduled access link in the DCI, and sends the UE-related control and data information to the UE on the indicated downlink resources. Correspondingly, the UE blindly receives the gNB DC scheduling indication DCI, obtains the scheduled downlink resources from the DCI, and receives the gNB CC signal on the corresponding downlink resources according to the scheduling indication, and obtains data information from it.

In addition, the gNB can also indicate the uplink resource for the UE through the DCI scheduling, and requires the UE to carry control or data information on the indicated uplink resource and send it to the gNB. Correspondingly, the UE blindly receives the gNB DC's scheduling indication DCI, obtains the scheduled uplink resource of the access link from the DCI, and sends an uplink signal to the gNB CC on the corresponding uplink resource according to the scheduling indication. The gNB c detects the uplink signal of the receiving UE on the indicated uplink resource, and obtains data information or feedback information of the UE from it.

Example 2

In the Sidelink communication system, Sidelink resources are used for information transmission between UEs. According to specific application scenarios and business types, Sidelink communication methods include device-to-device (D2D, Device to Device) communication, and vehicle-to-vehicle (V2V, Vehicle) to Vehicle) communication.

In the related art Sidelink communication method, the UE uses a resource in a side link resource pool to send a Sidelink signal. Exemplarily, the edge link resource pool includes multiple types:

Physical side link control channel (PSCCH) resource pool, used to carry side link control information;

Physical side link shared channel (PSSCH) resource pool, used to carry side link data service information;

Physical side link broadcast channel (PSBCH) resource pool, used to carry Sidelink broadcast information;

A physical edge link discovery channel (PSDCH) resource pool is used to carry Sidelink discovery signals.

According to the specific scenario requirements, the network side configures the Sidelink resource pool for the Sidelink UE or the system pre-configures the Sidelink resource pool. The UE uses the resources in the Sidelink resource pool to carry Sidelink information and send it. In the network-side or system predefined configuration, at least one of the foregoing types of Sidelink resource pools can be configured for the Sidelink UE.

Exemplarily, the PSCCH resource pool, the PSSCH resource pool, the PSBCH resource pool, and the PSDCH resource pool are all one of the Sidelink resource pools. In the embodiments of the present disclosure, the configuration indication method for the resource pools can be applied to any one or more of the above. Resource pool configuration.

When the resources of the Sidelink resource pool and the cellular communication share time domain resources and frequency domain resources, they need to be configured based on the existing time domain resources and frequency domain resources in the cellular communication. For example, based on the symbols and slot division that have been indicated in cellular communication, the symbol type is used as the basis, and the time domain resources in the Sidelink resource pool are further configured on this basis.

Since the UE can maintain both cellular communication and Sidelink communication, the configuration of the Sidelink resource pool needs to avoid conflicts with cellular communication resources as much as possible, that is, the time domain resources and frequency domain resources included in the Sidelink resource pool should not affect the resources of cellular communication as much as possible. Configuration. In a 5G system, a UE that performs cellular communication in a cell can determine the symbol type of each symbol in each slot in the time domain by receiving corresponding configuration signaling from a network-side node (such as a base station). In an embodiment, according to the scheduling instruction of the base station, the UE receives or sends signals using symbols of a corresponding symbol type.

Because the signal of the Sidelink communication is sent by the UE and received by other UEs supporting the Sidelink communication in the surroundings, in order to avoid interference from the downlink signal of the cellular, a UL symbol and / or a Flexible symbol should be used in the Sidelink resource pool, and a DL symbol is avoided. Among them, the UL symbol or Flexible symbol mentioned here refers to the UL symbol or Flexible symbol configured by the base station in cellular communication.

In an embodiment, since the configuration of the Sidelink resource pool cannot conflict with the resource configuration of the user of the cellular network, the resource indicated for the Sidelink communication in the configuration of the Sidelink resource pool does not include at least the time domain of cellular communication configured as DL The time domain resource of the symbol, that is, the time domain resource indicated in the Sidelink resource pool includes at least one of the following: UL slot, UL symbol, Flexible slot, Flexible symbol.

Hereinafter, a specific implementation of the embodiment of the present disclosure applied to Sidelink communication will be described.

(1) System pre-configured resource pool.

As shown in FIG. 2, the UE directly performs data communication with other surrounding UEs through Sidelink. The Sidelink resource pool is pre-configured by the system. The UE obtains a resource configuration indication of one or more resource pools on the Sidelink according to the pre-configured Sidelink resource pool configuration information.

The sidelink resource pool configuration information indicates that the time domain resource and frequency domain resource included in each configured resource pool respectively include a PSCCH resource pool and a corresponding PSSCH resource pool. The configured resource pool has periodicity. Within one period of the resource pool, time-domain resources use slots as a unit to indicate the number and position of the configured slots; on the slots included in the resource pool, each slot contains the same Frequency domain resources, the configuration information indicates the number and location of the configured RBs.

The configured PSCCH resource pool and the PSSCH resource pool have the same period, and each slot includes a different slot, as shown in FIG. 10.

(2) When the Sidelink resource pool is configured by the base station, the Sidelink resource pool can share resources with cellular communications. At this time, the Sidelink resource pool is configured and managed by the base station, and the base station judges and configures the status of the Sidelink resource pool.

Exemplarily, the base station determines the status of the corresponding resource pool according to factors such as the service requirements of the Sidelink and the Sidelink measurement results fed back by the UE. UEs on Sidelink can be divided into multiple groups. The base station instructs the UEs in Sidelink through the high-level signaling to use PSCCH / PSSCH resource pool A, that is, the corresponding resource pool is activated, and the UEs in Sidelink UE group B are used. PSCCH / PSSCH resource pool A is inactive, and PSCCH / PSSCH resource pool B is instructed to be active. That is, configure Sidelink UE UE group B to use the resources in resource pool B for Sidelink communication.

(3) The base station configures a dedicated Sidelink resource pool for UE A, and UE A determines the status of the configured resource pool and feeds it back to the base station.

In Sidelink communication, UE A can act as a relay node according to the configuration and provide relay services for other Sidelink UEs in the surroundings. UE A obtains the dedicated Sidelink resource pool configuration information from the base station, which indicates the dedicated relay resource pool F and resource pool G configured for UE A, and is used to bear the communication signals between UE A and Sidelink UE.

The base station configures multiple dedicated Sidelink resource pools for UE A, and UE A determines the status of the corresponding resource pool according to the number of Sidelink UEs served. Among them, resource pool F contains fewer time domain resources and frequency domain resources, and resource pool G contains more time domain resources and frequency domain resources.

Exemplarily, UE A determines the status of the corresponding resource pool according to the number of connected Sidelink UEs and the amount of resources contained in resource pool F and resource pool G. Exemplarily, when the resource pool F can meet the service requirements of the Sidelink UE relay service, the UE A determines to use the resource pool F, that is, set the resource pool F to an active state and set the resource pool G to an inactive state; when the UE When the number of Sidelink UEs connected to A increases, UE A activates resource pool G, while deactivating resource pool F, and uses resources in resource pool G to provide services for Sidelink UEs.

In an embodiment, the UE A feeds back the determined state of the resource pool F and the resource pool G to the base station through high-level signaling. UE A reports to the base station that the configured resource pool F is set to the active state, and resource pool G is set to the inactive state. When UE A changes the setting of the resource pool state, it updates the corresponding resource pool state change to the base station through signaling. The base station receives corresponding high-level signaling feedback from UE A, and obtains the status information of resource pool F and resource pool G from it.

(4) The state of the resource pool is determined by the base station and instructs Sidelink UE.

Exemplarily, after determining the status of the Sidelink resource pool, the base station broadcasts notification to the Sidelink UE through the system broadcast message of information indicating the status of the resource pool.

For the Sidelink public resource pool, the base station indicates in a broadcast message that its status is active or inactive. The Sidelink UE receives the broadcast message from the base station, and obtains the status information of the Sidelink resource pool from it.

For the dedicated resource pool of the Sidelink UE group, the base station indicates the status information of the resource pool through a group broadcast message or UE-specific high-level signaling.

On the resource pool indicated by the base station as active, the UE can use the resources in the resource pool to send or receive Sidelink signals.

(5) On the active resource pool indicated by the base station, the Sidelink UE can compete to select resources in the resource pool for sending Sidelink signals, and the UE monitors and detects Sidelink signals of other UEs in the active resource pool, Implement Sidelink communication.

When Sidelink resource pool K is active, UE A has Sidelink information to send. UE A then selects a conflict-free resource or a resource with better channel conditions through competition in resource pool K, and carries the transmission on the selected resource. Sidelink information. On resource pool K, the UE monitors and receives the resources in resource pool K, detects and receives signals from other Sidelink UEs, and obtains Sidelink information from them.

For a Sidelink resource pool in an inactive state, UE A cannot compete to select resources to send Sidelink information. Sidelink UE does not monitor and receive a resource pool in an inactive state, and does not attempt to obtain a Sidelink signal from it.

On the whole, under the premise of no conflict, the above multiple methods of the embodiments of the present disclosure can be used in combination.

Referring to FIG. 11, another embodiment of the present disclosure provides a resource pool configuration device (such as a first node), including:

The obtaining module 1101 is configured to obtain resource pool configuration information. The resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, status information of the resource pool, and the status of the resource pool is active or inactive. status;

The first determining module 1102 is configured to determine a state of the resource pool.

In another embodiment of the present disclosure, the method further includes:

A first scheduling module 1103 is configured to schedule or select resources in an activated resource pool, and the scheduled or selected resources are used for transmission of signals on an associated link, and the associated link includes using the resource pool. Resources for signalling the link.

In another embodiment of the present disclosure, the first determining module 1102 is further configured to:

Sending the status of the resource pool to a fourth node.

In the embodiment of the present disclosure, the obtaining module 1101 is exemplarily set to obtain the resource pool configuration information in at least one of the following ways:

Obtaining the resource pool configuration information according to the pre-configuration information;

According to the instruction, the resource pool configuration information is obtained.

The period of the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.

In the embodiment of the present disclosure, the first determining module 1102 is exemplarily set to determine the state of the resource pool in at least one of the following ways:

Judgement to determine the state of the resource pool;

Determine the status of the resource pool according to the pre-configured resource pool status information;

Determine the status of the resource pool according to the indicated resource pool status information.

In the embodiment of the present disclosure, the first determination module 1102 is exemplarily set to implement a decision to determine a state of a resource pool in a manner:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the first node;

The number of nodes having a wireless link with the first node;

The number of nodes that the first node communicates on an associated link, and the associated link includes a link for signal transmission using resources in the resource pool;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link.

State inversion information of the resource pool;

The state of the resource pool within a period;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

In the embodiment of the present disclosure, the first determining module 1102 is further configured to:

The resource pool corresponding to the state information of the resource pool is determined according to the index relationship, wherein the index relationship includes a one-to-one correspondence between the state information of the resource pool and the resource pool.

Referring to FIG. 12, another embodiment of the present disclosure provides a resource pool configuration device (such as a second node), including:

The second determining module 1201 is configured to determine resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, status information of the resource pool, and the status of the resource pool is active State or inactive state;

The instruction module 1202 is configured to indicate resource pool configuration information.

In another embodiment of the present disclosure, the method further includes:

The second scheduling module 1203 is configured to schedule resources in an activated resource pool and instruct the scheduled resources, and the scheduled resources are used for transmission of signals on an associated link, and the associated link includes using the A signalling link for resources in a resource pool.

In another embodiment of the present disclosure, the second determining module 1201 is exemplarily set to determine the resource pool configuration information in at least one of the following ways:

Configuration, determining the resource pool configuration information;

Determining the resource pool configuration information according to an instruction;

Determine the resource pool configuration information according to the pre-configuration information.

In the embodiment of the present disclosure, the second determining module 1201 is exemplarily set to implement configuration in the following manner to determine the resource pool configuration information:

Determine the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the second node;

The number of nodes having a wireless link with the second node;

The number of nodes communicating with the third node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link;

State information of a resource pool of a neighboring node of the third node;

A measurement feedback report of the third node;

A resource request of the third node.

The period of the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.

In the embodiment of the present disclosure, the second determining module 1201 is exemplarily configured to implement the indication of the resource pool configuration information in the following manner:

The resource pool configuration information is indicated by at least one of the following: high-level signaling, physical layer signaling, configuration signaling; wherein,

State inversion information of the resource pool;

The state of the resource pool in a period;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.

In the embodiment of the present disclosure, the second determining module 1201 is further configured to:

Indicating the state information of the resource pool corresponding to the resource pool according to the index relationship, wherein the index relationship includes a one-to-one correspondence between the state information of the resource pool and the resource pool.

The foregoing exemplary implementation process of the first node and the second node is the same as the foregoing embodiment, and details are not described herein again.

Another embodiment of the present disclosure provides a device for configuring a resource pool, which includes a processor and a computer-readable storage medium. The computer-readable storage medium stores instructions, and when the instructions are executed by the processor, the implementation is implemented. Any of the above resource pool configuration methods.

Another embodiment of the present disclosure provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of any of the foregoing resource pool configuration methods are implemented.

Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or Any other medium used to store desired information and which can be accessed by a computer.

Referring to FIG. 13, another embodiment of the present disclosure provides a resource pool configuration system, including:

The first node 1301 is configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool; determining a status of the resource pool, The state of the resource pool is active or inactive;

The second node 1302 is configured to determine and indicate resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool.

In another embodiment of the present disclosure, the first node 1301 is further configured to:

Sending the status of the resource pool to a fourth node;

The resource pool configuration system further includes a fourth node 1303, configured to receive a status of the resource pool.

Scheduling or competing for selected resources in an activated resource pool, the scheduled or selected resources are used for signal transmission on an associated link that includes a chain for signal transmission using resources in the resource pool road;

The second node 1202 is further used for:

Schedules resources in an active resource pool and indicates the scheduled resources.

An exemplary implementation process of the foregoing resource pool configuration system is the same as the foregoing embodiment, and details are not described herein again.

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present disclosure may be implemented by a general-purpose computing device, and they may be centralized on a single computing device or distributed on a network composed of multiple computing devices. Above, optionally, they can be implemented with program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, or they can be separately made into individual integrated circuit modules, or they can be stored in Multiple modules or steps are made into a single integrated circuit module for implementation. As such, the present disclosure is not limited to any particular combination of hardware and software.

Although the implementation manners disclosed in the embodiments of the present disclosure are as above, the content described is merely an implementation manner for facilitating understanding of the embodiments of the present disclosure, and is not intended to limit the embodiments of the present disclosure. Any person skilled in the art to which this embodiment of the present disclosure belongs may make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the embodiments of the present disclosure. The scope of patent protection shall still be subject to the scope defined by the appended claims.

Industrial applicability

The embodiment of the present disclosure obtains resource pool configuration information such as resource configuration instructions, resource pool status information, and the status of the resource pool in an activated or inactive state by using the first node, thereby achieving flexible configuration of the resource pool.

Claims

A resource pool configuration method includes:

The first node obtains resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool;

The first node determines a state of the resource pool, and the state of the resource pool is an active state or an inactive state.
The method according to claim 1, further comprising:

The first node schedules or competes for selection of resources in an activated resource pool, and the scheduled or selected resources are used for transmission of signals on an associated link that includes using resources in the resource pool The link through which the signal is transmitted.
The method according to claim 1 or 2, further comprising:

The first node sends a status of the resource pool to a fourth node.
The method according to claim 1 or 2, wherein the first node obtaining the resource pool configuration information comprises at least one of the following:

Obtaining, by the first node, the resource pool configuration information according to the pre-configuration information;

The first node obtains the resource pool configuration information according to an instruction.
The method according to claim 1 or 2, wherein the resource pool configuration information comprises at least one of the following:

The period of the resource pool;

The number and location of time domain resource units contained in the resource pool during a resource pool period;

The number and location of frequency domain resource units included in the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.
The method according to claim 5, wherein the type of the time domain resource unit includes any one of the following: a downlink resource, an uplink resource, and a flexible resource.
The method according to claim 1, wherein the determining, by the first node, the state of the resource pool comprises at least one of the following:

Determining, by the first node, the status of the resource pool;

Determining, by the first node, the status of the resource pool according to the pre-configured resource pool status information;

The first node determines a status of the resource pool according to the indicated resource pool status information.
The method according to claim 7, wherein the determining, by the first node, the state of the resource pool comprises:

Determining, by the first node, the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the first node;

The number of nodes having a wireless link with the first node;

The number of nodes where the first node communicates on the associated link;

A traffic demand of a node that communicates with the first node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link.
The method according to claim 1 or 7, wherein the status information of the resource pool comprises at least one of the following:

State inversion information of the resource pool;

The state of the resource pool within a period;

The state of the resource pool within a predetermined time, the predetermined time includes any one of the following: k cycles, k time-domain units, and k is an integer greater than or equal to 1;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.
The method according to claim 7, wherein the determining, by the first node, the status of the resource pool according to the indicated resource pool status information, further comprising:

The first node determines the resource pool corresponding to the state information of the resource pool according to an index relationship, wherein the index relationship includes a one-to-one correspondence between the state information of the resource pool and the resource pool.
A resource pool configuration method includes:

The second node determines and indicates the resource pool configuration information, where the resource pool configuration information includes at least one of the following: resource resource indication of the resource pool, status information of the resource pool, and the status of the resource pool is active or inactive Active state.
The method according to claim 11, further comprising:

The second node schedules resources in an activated resource pool and indicates the scheduled resources. The scheduled resources are used for transmission of signals on an associated link, and the associated link includes using the resource pool. Resources for signalling the link.
The method according to claim 11, wherein the second node determining the resource pool configuration information comprises at least one of the following:

The second node configuration, determining the resource pool configuration information;

Determining, by the second node, the resource pool configuration information according to an instruction;

The second node determines the resource pool configuration information according to the pre-configuration information.
The method according to claim 13, wherein the second node configuration and determining the resource pool configuration information comprise:

Determining, by the second node, the status of the resource pool according to at least one of the following decisions:

The number of time domain resource units included in the resource pool;

A location of a time domain resource unit included in the resource pool;

The number of frequency domain resource units included in the resource pool;

A position of a frequency domain resource unit included in the resource pool;

The traffic demand of the second node;

The number of nodes having a wireless link with the second node;

The number of nodes where the second node communicates on the associated link;

A traffic demand of a node communicating with the second node on the associated link;

A traffic demand of a third node, where the third node is a node that uses resources in the resource pool to communicate on the associated link;

The number of nodes communicating with the third node on the associated link;

A traffic demand of a node communicating with the third node on the associated link;

Traffic demand on the associated link;

The load on the associated link;

A channel measurement result of the associated link;

Resource pool configuration information of a neighboring node of the third node;

State information of a resource pool of a neighboring node of the third node;

A measurement feedback report of the third node;

A resource request of the third node.
The method according to claim 11, wherein the resource pool configuration information comprises at least one of the following:

The period of the resource pool;

The number and position of time domain resource units included in the resource pool during one period of the resource pool;

The number and location of frequency domain resource units included in the resource pool;

A type of a time domain resource unit in the resource pool;

The state of the resource pool.
The method according to claim 15, wherein the type of the time domain resource unit includes any one of the following: a downlink resource, an uplink resource, and a flexible resource.
The method according to claim 11, wherein the second node indicating the resource pool configuration information comprises:

The second node indicates the resource pool configuration information through at least one of the following: high-level signaling, physical layer signaling, and configuration signaling; wherein,

The high-level signaling includes at least one of the following: a radio resource control message and a media access control element;

The physical layer signaling includes at least one of the following: downlink control information, uplink control information, backhaul link control information, and edge link control information.
The method according to claim 11, wherein the state information of the resource pool comprises at least one of the following:

State inversion information of the resource pool;

The state of the resource pool in a period;

The state of the resource pool within a predetermined time, the predetermined time includes any one of the following: k cycles, k time-domain units, and k is an integer greater than or equal to 1;

The state of the resource pool;

A validity period of the state configuration of the resource pool;

Identification information of the resource pool.
The method according to claim 11, wherein the second node indicating the status information of the resource pool comprises:

The second node indicates status information of the resource pool corresponding to the resource pool according to an index relationship, wherein the index relationship includes a one-to-one correspondence between the resource pool status information and the resource pool.
A resource pool configuration device includes:

The obtaining module is configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of the following: resource resource indication of the resource pool, status information of the resource pool, and the status of the resource pool is active or inactive Active state

The first determining module is configured to determine a state of the resource pool.
A resource pool configuration device includes:

The second determining module is configured to determine resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indicator of the resource pool, status information of the resource pool, and the status of the resource pool is an active state Or inactive

The instruction module is configured to indicate the resource pool configuration information.
A device for configuring a resource pool includes a processor and a computer-readable storage medium, and the computer-readable storage medium stores instructions, wherein when the instructions are executed by the processor, the claims 1 to 19 are implemented. The resource pool configuration method according to any one.
A computer-readable storage medium having stored thereon a computer program, wherein when the computer program is executed by a processor, the steps of the resource pool configuration method according to any one of claims 1 to 19 are implemented.
A resource pool configuration system includes:

A first node, configured to obtain resource pool configuration information, where the resource pool configuration information includes at least one of: a resource configuration indication of the resource pool, and status information of the resource pool; determining the status of the resource pool, the The status of the resource pool is active or inactive;

The second node is configured to determine and indicate resource pool configuration information, where the resource pool configuration information includes at least one of the following: a resource configuration indication of the resource pool, and status information of the resource pool.