WO2020007244A1

WO2020007244A1 - Method and device for scheduling resource

Info

Publication number: WO2020007244A1
Application number: PCT/CN2019/093653
Authority: WO
Inventors: 刘凤威; 陈磊
Original assignee: 华为技术有限公司
Priority date: 2018-07-05
Filing date: 2019-06-28
Publication date: 2020-01-09

Abstract

The present application provides a method and a device for scheduling a resource, the method for scheduling a resource comprising: a second node receiving resource configuration information sent by a first node, wherein the resource configuration information is used to indicate a time domain position of a backhaul resource set, and the backhaul resource set comprises a fixed backhaul resource and a plurality of dynamic backhaul resources; in the fixed backhaul resource, the second node receiving first indication information sent by a first node, wherein the first indication information is used to indicate information of a scheduled dynamic backhaul resource of the plurality of dynamic backhaul resources; and the second node receiving a signal on the scheduled dynamic backhaul resource. The method for scheduling a resource in embodiments of the present application backhauls resources by means of dynamic configuration, helping improve system flexibility, and helping avoid wasting backhaul resources.

Description

Method and device for resource scheduling

This application claims the priority of a Chinese patent application filed on July 5, 2018 with the State Intellectual Property Office of China, with the application number 201810731379.1, and the invention name "A Method and Device for Resource Scheduling"; requested November 2, 2018 The priority of a Chinese patent application filed with the State Intellectual Property Office of China with an application number of 201811302743.9 and an invention name of "a method and a device for resource scheduling" is incorporated herein by reference in its entirety.

Technical field

The present application relates to the field of communications, and more particularly, to a method and apparatus for resource scheduling.

Background technique

With the continuous development of mobile communication technology, spectrum resources are becoming increasingly tight. In order to improve spectrum utilization, future base station deployments will be more intensive. In addition, dense deployments can avoid coverage holes. Under the traditional cellular network architecture, the base station establishes a connection with the core network through optical fiber. However, in many scenarios, the cost of fiber deployment is very high. A wireless relay node (RN) establishes a connection with the core network through a wireless backhaul link, which can save some fiber deployment costs.

In general, the relay node establishes a wireless backhaul link with one or more superior nodes, and accesses the core network through the superior node. The superior node can perform certain control on the relay node through a variety of signaling (for example, data scheduling, timing modulation, power control, etc.). In addition, the relay node can provide services for multiple lower-level nodes. An upper node of the relay node may be a base station or another relay node; a lower node of the relay node may be a terminal or another relay node.

The link that the relay node communicates with the upper node is called the backhaul link, and the link that communicates with the lower node is called the access link. Relay nodes whose backhaul link and access link are in the same frequency band are called in-band relays. In order to ensure the normal operation of the in-band relay, the superior node needs to configure backhaul resources for it. Generally, the backhaul resources are semi-statically configured by high-level signaling such as radio resource control (RRC), and then the upper node further dynamically configures the backhaul link through signaling such as downlink control information (DCI). Scheduling parameters. In a long term evolution (LTE) system, the upper-level node configures the backhaul resources through semi-static configuration. The upper-level node cannot dynamically adjust the number of actually scheduled backhaul resources according to the change in the amount of data on the backhaul link. This may result in Poor system flexibility.

Summary of the invention

In view of this, the present application provides a method and device for resource scheduling, with a view to improving system flexibility by dynamically configuring backhaul resources.

In a first aspect, a method for resource scheduling is provided. The method includes:

The second node receives resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain position of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

At the fixed backhaul resource, the second node receives first indication information sent by the first node, where the first indication information is used to indicate information about a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

The second node receives a signal sent by the first node on the scheduled dynamic backhaul resource.

In some possible implementation manners, the first node is a network device, or the first node is a relay device.

In some possible implementation manners, the second node is a relay device, or the second node is a terminal having a function of a relay device, or the second node is a terminal.

In some possible implementation manners, the resource configuration information is further used to indicate a frequency domain position of the backhaul resource set.

In some possible implementation manners, receiving the signal on the scheduled dynamic backhaul resource includes:

A physical downlink shared channel (PDSCH) is received on the scheduled dynamic backhaul resource.

In some possible implementation manners, the resource configuration information is generated by a control node and sent to the second node through the first node, where the control node is a network device or a relay node different from the first node.

In some possible implementation manners, the resource configuration information is generated by the first node and sent to the second node.

The method for resource scheduling in the embodiment of the present application, by dynamically scheduling the backhaul resource set through the first node, helps to improve the flexibility of the system, and at the same time helps to avoid the excessive backhaul resource allocation while ensuring the backhaul resource allocation. Switching overhead.

With reference to the first aspect, in some possible implementation manners of the first aspect, the method further includes:

On the first scheduled dynamic backhaul resource, the second node receives the first downlink control information DCI sent by the first node, and the first DCI is used to indicate a downlink of the first scheduled dynamic backhaul resource. A scheduling parameter. The scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.

In the embodiment of the present application, the first scheduled dynamic backhaul resource represents a dynamic backhaul resource in which the PDCCH and PDSCH are multiplexed at the same time unit, and the second node determines to detect the first scheduled dynamic resource through the first indication information. PDCCH.

In some possible implementation manners, the second node receives DCI on each of the scheduled dynamic backhaul resources in the scheduled dynamic backhaul resources, and the DCI is used to indicate each of the scheduled dynamic backhaul resources Downlink scheduling parameters, the method further includes:

The second node receives a signal sent by the first node on each dynamic backhaul resource according to the DCI received on each scheduled dynamic backhaul resource.

In some possible implementation manners, if the scheduled dynamic backhaul resource includes a second scheduled dynamic backhaul resource, the second scheduled dynamic backhaul resource is located at the same time as the fixed backhaul resource Unit or adjacent time unit dynamic backhaul resource, the first indication information further includes information for indicating a receiving beam of a third scheduled dynamic backhaul resource, and the third scheduled dynamic backhaul resource is the At least a part of the scheduled dynamic backhaul resources other than the second scheduled dynamic backhaul resource.

In some possible implementation manners, if the scheduled dynamic backhaul resource does not have a dynamic backhaul resource that is located in the same time unit or an adjacent time unit as the fixed backhaul resource, the first indication information further includes a For indicating the receiving beam of the third scheduled dynamic backhaul resource, the third scheduled dynamic backhaul resource is at least a part of the scheduled dynamic backhaul resource.

In some possible implementation manners, the first indication information is DCI, and the DCI carries TCI information indicating a receiving beam of the third scheduled dynamic backhaul resource.

In the method for resource scheduling in the embodiment of the present application, by indicating in advance whether dynamic backhaul resources are scheduled, the system flexibility can be ensured while avoiding excessive switching overhead. At the same time, the scheduling information of each dynamic backhaul resource is Sending in dynamic backhaul resources helps reduce the complexity of the second node and improve scheduling flexibility.

In some possible implementation manners, the receiving the first indication information sent by the first node at the fixed backhaul resource includes:

In the fixed backhaul resource, the second node receives the DCI of each of the scheduled dynamic backhaul resources among the scheduled dynamic backhaul resources sent by the first node, and each of the scheduled dynamic backhaul resources The DCI is used to indicate downlink scheduling parameters of each scheduled dynamic backhaul resource. The second node receiving a signal on the scheduled dynamic backhaul resource includes:

The second node receives a signal on each of the scheduled dynamic backhaul resources according to the DCI of each of the scheduled dynamic backhaul resources.

In some possible implementation manners, the DCI of each scheduled dynamic backhaul resource carries TCI information indicating a receiving beam of each of the scheduled dynamic backhaul resources.

In the method for resource scheduling in the embodiment of the present application, the second node can receive DCI of multiple dynamic backhaul resources on a fixed backhaul resource, thereby ensuring system flexibility while avoiding excessive handover overhead.

In the method for resource scheduling in the embodiment of the present application, the second node receives the downlink scheduling parameters of the dynamic backhaul resource in the same time unit or adjacent time unit as the fixed backhaul resource through the fixed backhaul resource, which helps to further reduce Switching overhead of the second node.

At the fixed backhaul resource, the second node receives information of a receiving beam of a third scheduled dynamic backhaul resource sent by the first node, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul Resources.

In some possible implementation manners, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the backhaul resource set further includes at least one dynamic uplink backhaul resource. , The at least one dynamic uplink backhaul resource is scheduled by the fixed backhaul resource or a plurality of dynamic downlink backhaul resources.

In some possible implementation manners, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the set of backhaul resources further includes a fixed uplink backhaul resource, The method also includes:

At the fixed downlink backhaul resource, the second node receives the DCI of the fixed uplink backhaul resource sent by the first node.

In some possible implementation manners, the method further includes:

At the fixed uplink backhaul resource, the second node sends HARQ feedback information of the fixed downlink backhaul resource to the first node.

In some possible implementation manners, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the backhaul resource set further includes a fixed uplink backhaul resource and Multiple dynamic uplink backhaul resources, the method further includes:

On the fixed downlink backhaul resource, the second node receives the DCI of the fixed uplink backhaul resource sent by the first node;

At the first scheduled dynamic backhaul resource, the second node receives the DCI of the first dynamic uplink backhaul resource sent by the first node, and the first dynamic uplink backhaul resource is the plurality of dynamic uplink backhaul resources. Any one of the dynamic uplink backhaul resources.

In some possible implementation manners, the method further includes:

On the fixed uplink backhaul resource, the second node sends HARQ feedback information of the fixed downlink backhaul resource to the first node;

At the first uplink dynamic backhaul resource, the second node sends HARQ feedback information of the first scheduled dynamic backhaul resource to the first node.

In a second aspect, a method for resource scheduling is provided. The method includes:

At the fixed backhaul resource, the second node receives a second DCI sent by the first node, the second DCI is used to indicate a downlink scheduling parameter of a fourth scheduled dynamic backhaul resource, and the second DCI is used to indicate The fifth scheduled dynamic backhaul resource is scheduled, and the plurality of dynamic backhaul resources includes the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource, wherein the fixed backhaul resource and The fourth scheduled dynamic backhaul resource is located in the same time unit, or the fixed scheduled backhaul resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units;

The second node receives a signal on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource according to the second DCI.

The method for resource scheduling in the embodiment of the present application, which schedules backhaul resources in advance by means of level-by-level instructions, helps to ensure the flexibility of the system while avoiding excessive switching overhead, and at the same time, can save the DCI indication overhead.

With reference to the second aspect, in some possible implementation manners of the second aspect, the method further includes:

In the fifth scheduled dynamic backhaul resource, the second node receives a third DCI sent by the first node, the third DCI is used to indicate a downlink scheduling parameter of the fifth scheduled dynamic backhaul resource and the The third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the multiple dynamic backhaul resources include the third sixth scheduled dynamic backhaul resource.

At the fixed backhaul resource, the second node receives information of a receiving beam of the fifth scheduled dynamic backhaul resource sent by the first node; or,

In the fifth scheduled dynamic backhaul resource, the second node receives information of a receiving beam of the sixth scheduled dynamic backhaul resource sent by the first node.

In some possible implementation manners, the second DCI carries a TCI indicating a receiving beam of the fifth scheduled dynamic backhaul resource.

In some possible implementation manners, the third DCI carries a TCI to indicate a receiving beam of the sixth scheduled dynamic backhaul resource.

In a third aspect, a method for resource scheduling is provided. The method includes:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, and the backhaul resource set includes a fixed backhaul resource and a plurality of dynamic backhaul resources;

At the fixed backhaul resource, the first node sends first indication information to the second node, where the first indication information is used to indicate information about a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

The first node sends a signal to the second node on the scheduled dynamic backhaul resource.

With reference to the third aspect, in some possible implementation manners of the third aspect, the method further includes:

On the first scheduled dynamic backhaul resource, the first node sends first downlink control information DCI to the second node, and the first DCI is used to indicate a downlink of the first scheduled dynamic backhaul resource. A scheduling parameter. The scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.

With reference to the first aspect or the third aspect, in some possible implementation manners of the first aspect or the third aspect, the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.

With reference to the first aspect or the third aspect, in some possible implementation manners of the first aspect or the third aspect, each of the scheduled dynamic backhaul resources corresponds to a control resource set, Alternatively, each of the scheduled dynamic backhaul resources corresponds to a search space set or a subset of a search space set.

In some possible implementation manners, candidate PDCCHs scheduling different dynamic backhaul resources have different control channel element (control channel element, CCE) indexes.

In some possible implementation manners, the subset of the search space set includes a CCE index of one or more candidate PDCCHs scheduling each dynamic backhaul resource.

In some possible implementation manners, the method further includes:

Determining, by the first node, a DCI transmission mode of each dynamic backhaul resource through a correspondence between each scheduled dynamic backhaul resource and a control resource set; or,

Determining, by the first node, a DCI sending mode of each dynamic return resource through a correspondence between each scheduled dynamic return resource and a search space set; or,

The first node determines a DCI transmission mode of each dynamic backhaul resource through a correspondence between each scheduled dynamic backhaul resource and a subset of a search space set.

Optionally, the DCI sending mode includes time-frequency resource mapping information corresponding to the PDCCH.

With reference to the first aspect or the third aspect, in some possible implementation manners of the first aspect or the third aspect, the first indication information further includes downlink scheduling parameters of the second scheduled dynamic backhaul resource, and the scheduled The dynamic backhaul resource includes the second scheduled dynamic backhaul resource, where the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the The second scheduled dynamic backhaul resource is located in an adjacent time unit.

At the fixed backhaul resource, the first node sends to the second node information about a receiving beam of a third scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul Resources.

In a fourth aspect, a method for resource scheduling is provided. The method includes:

At the fixed backhaul resource, the first node sends a second DCI to the second node, the second DCI is used to indicate a downlink scheduling parameter of a fourth scheduled dynamic backhaul resource, and the second DCI is used to indicate a first Five scheduled dynamic backhaul resources are scheduled, the multiple dynamic backhaul resources include the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource, wherein the fixed backhaul resource and the The fourth scheduled dynamic backhaul resource is located in the same time unit, or the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units;

The first node sends a signal to the second node on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the method further includes:

At the fifth scheduled dynamic backhaul resource, the first node sends a third DCI to the second node, the third DCI is used to indicate a downlink scheduling parameter of the fifth scheduled dynamic backhaul resource, and the first Three DCIs are used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the multiple dynamic backhaul resources include the sixth scheduled dynamic backhaul resource.

At the fixed backhaul resource, the first node sends to the second node information about a receiving beam of the fifth scheduled dynamic backhaul resource; or

At the fifth scheduled dynamic backhaul resource, the first node sends the second node to the second node with information about a receiving beam of the sixth scheduled dynamic backhaul resource.

In a fifth aspect, an apparatus for resource scheduling is provided. The apparatus includes:

The transceiver unit is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, the backhaul resource set includes a fixed backhaul resource and multiple dynamic backhaul resources;

A processing unit, configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources;

In the fixed backhaul resource, the transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources. information;

The processing unit is further configured to determine the scheduled dynamic backhaul resource;

The transceiver unit is further configured to receive a signal sent by the first node on the scheduled dynamic backhaul resource.

With reference to the fifth aspect, in some possible implementation manners of the fifth aspect, the transceiver unit is further configured to receive the first downlink control information sent by the first node on the first scheduled dynamic backhaul resource. DCI, the first DCI is used to indicate a downlink scheduling parameter of the first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

The processing unit is further configured to determine a downlink scheduling parameter of the first scheduled dynamic backhaul resource.

With reference to the fifth aspect, in some possible implementation manners of the fifth aspect, the transceiver unit is further configured to receive, at the fixed backhaul resource, the reception of the third scheduled dynamic backhaul resource sent by the first node. Beam information, the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource;

The processing unit is further configured to determine a receiving beam of the third scheduled dynamic backhaul resource.

According to a sixth aspect, an apparatus for resource scheduling is provided. The apparatus includes:

A processing unit for determining a fixed backhaul resource and a plurality of dynamic backhaul resources;

The transceiver unit is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes the fixed backhauled resources and the multiple dynamic backhauled resources;

The processing unit is further configured to determine a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit is further configured to send first indication information to the second node, where the first indication information is used to indicate information about the scheduled dynamic backhaul resource;

The transceiver unit is further configured to send a signal to the second node on the scheduled dynamic backhaul resource.

With reference to the sixth aspect, in some possible implementation manners of the sixth aspect, the processing unit is further configured to determine the first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled backhaul resource. Scheduled dynamic backhaul resources;

The transceiver unit is further configured to send a first DCI to the second node on the first scheduled dynamic backhaul resource, and the first DCI is used to indicate downlink scheduling of the first scheduled dynamic backhaul resource. parameter.

With reference to the fifth aspect or the sixth aspect, in some possible implementation manners of the fifth aspect or the sixth aspect, the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.

With reference to the fifth aspect or the sixth aspect, in some possible implementation manners of the fifth aspect or the sixth aspect, each of the scheduled dynamic backhaul resources corresponds to a control resource set, Alternatively, each of the scheduled dynamic backhaul resources corresponds to a search space set or a subset of a search space set.

With reference to the fifth aspect or the sixth aspect, in some possible implementation manners of the fifth aspect or the sixth aspect, the first indication information further includes downlink scheduling parameters of the second scheduled dynamic backhaul resource, and the scheduled The dynamic backhaul resource includes the second scheduled dynamic backhaul resource, where the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the The second scheduled dynamic backhaul resource is located in an adjacent time unit.

With reference to the sixth aspect, in some possible implementation manners of the sixth aspect, the processing unit is further configured to determine a receiving beam of the third scheduled dynamic backhaul resource, where the scheduled dynamic backhaul resource includes the The third scheduled dynamic backhaul resource;

The transceiver unit is further configured to send information of a receiving beam of a third scheduled dynamic backhaul resource to the second node at the fixed backhaul resource.

According to a seventh aspect, an apparatus for resource scheduling is provided. The apparatus includes:

A processing unit, configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources; at the fixed backhaul resource, the transceiver unit is further configured to receive a second DCI sent by the first node, where the second DCI is used for Indicates a downlink scheduling parameter of a fourth scheduled dynamic backhaul resource and the second DCI is used to indicate that a fifth scheduled dynamic backhaul resource is scheduled, the plurality of dynamic backhaul resources including the fourth scheduled dynamic backhaul resource Transmission resources and the fifth scheduled dynamic backhaul resource, wherein the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the fourth scheduled backhaul resource The scheduled dynamic backhaul resources are located in adjacent time units;

The processing unit is further configured to determine downlink scheduling parameters of the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource;

The transceiver unit is further configured to receive signals on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

With reference to the seventh aspect, in some possible implementation manners of the seventh aspect, the transceiver unit is further configured to receive the third DCI sent by the first node at the fifth scheduled dynamic backhaul resource, and the first Three DCIs are used to indicate the downlink scheduling parameters of the fifth scheduled dynamic backhaul resource and the third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the multiple dynamic backhaul resources include the sixth Scheduled dynamic backhaul resources;

The processing unit is further configured to determine downlink scheduling parameters of the fifth scheduled dynamic backhaul resource and the sixth scheduled dynamic backhaul resource.

With reference to the seventh aspect, in some possible implementation manners of the seventh aspect, the transceiver unit is further configured to receive, at the fixed backhaul resource, the fifth scheduled dynamic backhaul resource sent by the first node. Receive beam information;

The processing unit is further configured to determine a receiving beam of the fifth scheduled dynamic backhaul resource; or

The transceiver unit is further configured to receive, at the fifth scheduled dynamic backhaul resource, information about a receiving beam of the sixth scheduled dynamic backhaul resource sent by the first node;

The processing unit is further configured to determine a receiving beam of the sixth scheduled dynamic backhaul resource.

According to an eighth aspect, an apparatus for resource scheduling is provided. The apparatus includes:

The processing unit is further configured to determine a fourth scheduled dynamic backhaul resource and a fifth scheduled dynamic backhaul resource of the plurality of dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit is further configured to send a second DCI to the second node, the second DCI is used to indicate downlink scheduling parameters of the fourth scheduled dynamic backhaul resource and the second DCI It is used to indicate that the fifth scheduled dynamic backhaul resource is scheduled, wherein the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the first Four scheduled dynamic backhaul resources are located in adjacent time units;

The transceiver unit is further configured to send a signal to the second node on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

With reference to the eighth aspect, in some possible implementation manners of the eighth aspect, the processing unit is further configured to determine the sixth scheduled dynamic backhaul resource, and the multiple dynamic backhaul resources include the sixth scheduled backhaul resource. Dynamic backhaul resources;

The transceiver unit is further configured to send a third DCI to the second node at the fifth scheduled dynamic backhaul resource, and the third DCI is used to indicate a downlink scheduling parameter of the fifth scheduled dynamic backhaul resource. And the third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled.

With reference to the eighth aspect, in some possible implementation manners of the eighth aspect, the processing unit is further configured to determine a receiving beam of the fifth scheduled dynamic backhaul resource;

The transceiver unit is further configured to send, to the second node, information about a receiving beam of the fifth scheduled dynamic loopback resource to the second node; or,

The processing unit is further configured to determine a receiving beam of the sixth scheduled dynamic backhaul resource;

The transceiver unit is further configured to send information of a receiving beam of the sixth scheduled dynamic backhaul resource to the second node at the fifth scheduled dynamic backhaul resource.

In a ninth aspect, a method for determining resources is provided. The method includes:

The second node receives the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes at least one fixed access resource and / or multiple dynamic access resources;

The second node receives first indication information sent by the first node, and the first indication information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

In some possible implementation manners, the second node receives a signal sent by the first node on a dynamic backhaul resource scheduled for a backhaul link.

In some possible implementation manners, the second node determines the dynamic access resource used for the access link among the multiple dynamic access resources according to the scheduled information of the dynamic access resource used for the backhaul link.

In some possible implementation manners, the second node receives the resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain location of the backhaul resource set. The backhaul resource set includes: at least one fixed backhaul resource and / Or multiple dynamic postback resources.

In some possible implementation manners, the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the backhauled resource set are transmitted through different signaling or interfaces.

In some possible implementation manners, the access resource set is configured by a method based on a bitmap or a string. The bitmap includes an indicator of the unavailable access resource and an indicator bit of the fixed / dynamic access resource. The indication of the unavailable access resource takes precedence. Level higher than fixed / dynamic access resource indication.

In some possible implementation manners, the second node receives the first indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and a schedule for The dynamic access resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, the first indication information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.

In some possible implementation manners, the first indication information is carried on a PDCCH, and the PDCCH is scrambled by an FS-RNTI.

In some possible implementation manners, after receiving the first indication information, the second node sends a response message to the first node.

In the method for determining resources in the embodiment of the present application, by configuring the access resource set, the second node can obtain dynamic scheduling resources, and the dynamic scheduling resources can be shared between the access link and the backhaul link, thereby improving resources. Utilization makes the resource scheduling of the relay node more flexible, and realizes the resource coordination between the fast access link and the backhaul link.

In a tenth aspect, a method for determining resources is provided. The method includes:

The second node receives the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources;

The second node receives first indication information sent by the first node, and the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the plurality of dynamic backhaul resources.

In some possible implementation manners, the second node determines the dynamic backhaul resource for the access link among the multiple dynamic backhaul resources according to the scheduled information of the dynamic backhaul resources for the backhaul link.

In some possible implementation manners, the second node receives the resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes: at least one fixed access resource and / Or multiple dynamic access resources.

In some possible implementation manners, the backhaul resource set is configured by a bitmap or string-based method. The bitmap includes an indication of an unavailable backhaul resource indication and a fixed / dynamic backhaul resource indication bit. The unavailable backhaul resource indication takes precedence. Level higher than fixed / dynamic backhaul resource indication.

In some possible implementation manners, the second node receives the first indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and a schedule for The dynamic backhaul resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In the method for determining resources in the embodiment of the present application, by configuring the backhaul resource set, the second node can obtain dynamic scheduling resources, and the dynamic scheduling resources can be shared between the access link and the backhaul link, thereby improving resources. Utilization makes the resource scheduling of the relay node more flexible, and realizes the resource coordination between the fast access link and the backhaul link.

According to an eleventh aspect, a method for determining resources is provided. The method includes:

The second node receives the resource configuration information sent by the first node, and the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The second node receives first indication information sent by the first node, and the first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

In some possible implementation manners, the second node determines the dynamic resource for the access link among the at least one dynamic resource according to the scheduled information of the dynamic resource for the backhaul link.

In some possible implementation manners, the second node receives the second indication information sent by the first node, and the second indication information is used to re-assign the information of the dynamic resources for the backhaul link in the at least one dynamic resource.

In some possible implementation manners, the resource configuration is configured by a bitmap or string-based method.

In some possible implementation manners, the second node receives the second indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and a schedule for The dynamic resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, after receiving the first indication information or the second indication information, the second node sends a response message to the first node.

In the method for determining resources in the embodiment of the present application, by configuring fixed backhaul resources and dynamic resources of the backhaul link, the second node can obtain dynamic resources, and the dynamic resources can be shared between the access link and the backhaul link. The use of resources is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In a twelfth aspect, a method for determining resources is provided. The method includes:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes at least one fixed access resource and / or multiple dynamic access resources;

The first node sends first instruction information to the second node, where the first instruction information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

In some possible implementation manners, the first node determines the dynamic access resource for the access link according to the scheduled information of the dynamic access resource for the backhaul link.

In some possible implementation manners, the first node sends resource configuration information to the second node, and the resource configuration information is used to indicate a time domain location of the backhaul resource set. The backhaul resource set includes: at least one fixed backhaul resource and / or Multiple dynamic postback resources.

In some possible implementation manners, the first node sends the first indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: fixed backhaul resources and a schedule for The dynamic access resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, after the first node sends the first indication information to the second node, the first node receives a response message sent by the first node.

In the method for determining resources in the embodiment of the present application, by configuring an access resource set to a first node, a second node obtains a dynamic access resource, and the dynamic access resource can be shared between an access link and a backhaul link. The resource utilization is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In a thirteenth aspect, a method for determining resources is provided. The method includes:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources;

The first node sends first indication information to the second node, where the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the multiple dynamic backhaul resources.

In some possible implementation manners, the first node determines the dynamic backhaul resource for the access link according to the scheduled information of the dynamic backhaul resource for the backhaul link.

In some possible implementation manners, the first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes: at least one fixed access resource and / or Multiple dynamic access resources.

In some possible implementation manners, the backhaul resource set is configured by a method based on a bitmap or a string, where the bitmap includes an indication of an unavailable backhaul resource indication and a fixed / dynamic backhaul resource indication bit, and an unavailable backhaul resource indication Has a higher priority than the fixed / dynamic backhaul resource indication.

In some possible implementation manners, the first node sends the first indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: fixed backhaul resources and a schedule for The dynamic backhaul resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, the first indication information is carried on the PDCCH, and the PDCCH is scrambled by the FS-RNTI.

In some possible implementation manners, after the first node sends the first indication information to the second node, it receives a response message sent by the first node.

In the method for determining resources in the embodiment of the present application, by configuring a backhaul resource set to a first node, a second node obtains a dynamic backhaul resource, and the dynamic backhaul resource can be shared between the access link and the backhaul link. The resource utilization is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In a fourteenth aspect, a method for determining resources is provided. The method includes:

The first node sends resource configuration information to the second node, and the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The first node sends first instruction information to the second node, where the first instruction information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

In some possible implementation manners, the first node sends second instruction information to the second node, and the second instruction information is used to re-assign the dynamic resource information of the at least one dynamic resource for the backhaul link.

In some possible implementation manners, the first node sends the second indication information to the second node on the downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: fixed backhaul resources and The scheduled dynamic resources for the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, after the first node sends the first indication information or the second indication information, the first node receives a response message sent by the first node.

In a fifteenth aspect, an apparatus for determining resources is provided, where the apparatus includes:

A transceiver unit, configured to receive resource configuration information sent by the first node, the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes at least one fixed access resource and / or multiple dynamic access resources ;

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

In some possible implementation manners, the transceiver unit is further configured to receive a signal sent by the first node on a dynamic backhaul resource scheduled for a backhaul link.

In some possible implementation manners, the processing unit is configured to determine a dynamic access resource for the access link among the multiple dynamic access resources according to the scheduled information of the dynamic access resource for the backhaul link.

In some possible implementation manners, the transceiver unit is further configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain location of a backhaul resource set. The backhaul resource set includes at least one fixed backhaul. Resources and / or multiple dynamic postback resources.

In some possible implementation manners, the transceiver unit is specifically configured to receive resource configuration information used to indicate an access resource set and resource configuration information used to indicate a backhauled resource set through different signaling or interfaces.

In some possible implementation manners, the transceiver unit is further configured to receive the first indication information in a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and scheduled The dynamic access resources for the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, the transceiver unit is further configured to send a response message to the first node after receiving the first instruction information.

The device for determining resources in the embodiment of the present application can configure the access resource set to enable the second node to obtain dynamic scheduling resources, and the dynamic scheduling resources can be shared between the access link and the backhaul link, thereby improving resources. Utilization makes the resource scheduling of the relay node more flexible, and realizes the resource coordination between the fast access link and the backhaul link.

In a sixteenth aspect, an apparatus for determining resources is provided. The apparatus includes:

The transceiver unit is configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain position of a backhaul resource set, and the backhaul resource set includes a fixed backhaul resource and multiple dynamic backhaul resources;

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the multiple dynamic backhaul resources.

In some possible implementation manners, the processing unit, the second node determines, according to the scheduled information of the dynamic backhaul resource for the backhaul link, the dynamic backhaul for the access link among the multiple dynamic backhaul resources. Pass on resources.

In some possible implementation manners, the transceiver unit is further configured to receive resource configuration information sent by the first node, the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes at least one fixed access Resources and / or multiple dynamic access resources.

In some possible implementation manners, the transceiver unit is further configured to receive the first indication information in a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and scheduled The dynamic backhaul resources for the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, the transceiver unit is further configured to send a response message to the first node after receiving the first indication information.

According to a seventeenth aspect, an apparatus for determining resources is provided. The apparatus includes:

The transceiver unit is configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

In some possible implementation manners, the processing unit is configured to determine a dynamic resource for accessing the link from the at least one dynamic resource according to the scheduled information of the dynamic resource for the backhaul link.

In some possible implementation manners, the transceiver unit is further configured to receive second instruction information sent by the first node, and the second instruction information is used to re-assign the information of the dynamic resources for the backhaul link in the at least one dynamic resource. .

In some possible implementation manners, the resource configuration information is configured through a bitmap or string-based method.

In some possible implementation manners, the transceiver unit is further configured to receive the second indication information on a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and scheduled The time slot or sub-frame in the dynamic resources used for the backhaul link is configured as downlink transmission.

In some possible implementation manners, the transceiver unit is further configured to send a response message to the first node after receiving the first indication information or the second indication information.

In the device for determining resources in the embodiment of the present application, by configuring fixed backhaul resources and dynamic resources of a backhaul link, a second node can obtain dynamic resources, and the dynamic resources can be shared between the access link and the backhaul link. The use of resources is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In an eighteenth aspect, an apparatus for determining resources is provided. The apparatus includes:

The transceiver unit is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes at least one fixed access resource and / or multiple dynamic access resources;

The transceiver unit is configured to send the first instruction information to the second node, where the first instruction information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

In some possible implementation manners, the processing unit is configured to determine a dynamic access resource used for the access link according to the scheduled information of the dynamic access resource used for the backhaul link.

In some possible implementation manners, the transceiver unit is further configured to send resource configuration information to the second node, and the resource configuration information is used to indicate a time domain location of the backhaul resource set. The backhaul resource set includes at least one fixed backhaul resource. And / or multiple dynamic postback resources.

In some possible implementation manners, the transceiver unit is further configured to send the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the backhauled resource set to the second node through different signaling or interfaces.

In some possible implementation manners, the access resource set is configured by a method based on a bitmap or a string. The bitmap includes an indicator of the unavailable access resource and an indicator bit of the fixed / dynamic access resource. The indication of the unavailable access resource has priority. Level higher than fixed / dynamic access resource indication.

In some possible implementation manners, the transceiver unit is further configured to send the first indication information on a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and scheduled The dynamic access resources for the backhaul link are configured as time slots or subframes for downlink transmission.

In some possible implementation manners, the transceiver unit is further configured to receive a response message sent by the first node after the first indication information is sent to the second node.

The device for determining resources in the embodiment of the present application configures an access resource set to a first node so that a second node obtains a dynamic access resource, and the dynamic access resource can be shared between an access link and a backhaul link. The resource utilization is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In a nineteenth aspect, an apparatus for determining resources is provided. The apparatus includes:

The sending and receiving unit is configured to send resource configuration information to the second node, and the resource configuration information is used to indicate a time domain position of the backhaul resource set. The backhaul resource set includes a fixed backhaul resource and multiple dynamic backhaul resources.

The transceiver unit is configured to send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the multiple dynamic backhaul resources.

In some possible implementation manners, the processing unit is configured to determine the dynamic backhaul resource used for the access link according to the scheduled information of the dynamic backhaul resource used for the backhaul link.

In some possible implementation manners, the transceiver unit is further configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes: at least one fixed access resource And / or multiple dynamic access resources.

In some possible implementation manners, the transceiver unit is further configured to send the resource configuration information used to indicate the access to the resource set and the resource configuration used to indicate the backhauled resource set to the second node through different signaling or interfaces. information.

In some possible implementation manners, the set of backhaul resources is configured by a method based on a bitmap or a string, where the bitmap includes an indication of an unavailable backhaul resource indication and a fixed / dynamic backhaul resource indication bit, the unavailable backhaul The priority of the resource indication is higher than that of the fixed / dynamic backhaul resource indication.

In some possible implementation manners, the transceiver unit is further configured to receive a response message sent by the first node after sending the first indication information to the second node.

The device for determining resources in the embodiment of the present application configures a first node to set backhaul resource sets so that the second node obtains dynamic backhaul resources, and the dynamic backhaul resources can be shared between the access link and the backhaul link. The resource utilization is improved, the resource scheduling of the relay node is more flexible, and the resource coordination between the fast access link and the backhaul link is realized.

In a twentieth aspect, an apparatus for determining resources is provided, and the apparatus includes:

The transceiver unit is configured to send resource configuration information to the second node, and the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The transceiver unit is further configured to send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

In some possible implementation manners, the transceiver unit is further configured to send second instruction information to the second node, and the second instruction information is used to re-assign the dynamic resource information of the at least one dynamic resource for the backhaul link.

In some possible implementation manners, the transceiver unit is further configured to send the second indication information to the second node on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: fixed backhaul Among the resources and the scheduled dynamic resources for the backhaul link, time slots or subframes configured for downlink transmission.

In some possible implementation manners, the transceiver unit is further configured to receive a response message sent by the first node after sending the first indication information or the second indication information.

According to a twenty-first aspect, a communication device is provided. The communication device may be a second node in the method design, or a chip disposed in the second node. The communication device includes a processor coupled to a memory, and may be configured to execute instructions in the memory to implement the method performed by the second node in the first and second aspects and any possible implementation manners of the foregoing. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

When the communication device is the second node, the communication interface may be a transceiver, or an input / output interface.

When the communication device is a chip configured in the second node, the communication interface may be an input / output interface.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

In a twenty-second aspect, a communication device is provided. The communication device may be the first node in the method design, or a chip disposed in the first node. The communication device includes a processor, which is coupled to the memory and can be used to execute instructions in the memory to implement the method performed by the first node in the third and fourth aspects and any one of the possible implementation manners. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

When the communication device is the first node, the communication interface may be a transceiver, or an input / output interface.

When the communication device is a chip configured in the first node, the communication interface may be an input / output interface.

According to a twenty-third aspect, a program is provided for executing the methods provided in the first to fourth aspects when executed by a processor.

According to a twenty-fourth aspect, a program product is provided, where the program product includes program code, and the program code is received by a communication unit, a processing unit, or a transceiver of a communication device (for example, a first node or a second node). When the processor is running, the communication device is caused to execute any one of the foregoing first to fourth aspects and possible methods thereof.

According to a twenty-fifth aspect, a computer-readable medium is provided. The computer-readable medium stores a program that causes a communication device (for example, a first node or a second node) to execute the first to fourth aspects described above. Aspect and any of its possible implementations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a wireless communication system according to the present application.

FIG. 2 is a schematic structural diagram of a network device according to an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application.

FIG. 4 is a schematic diagram of scheduling backhaul resources in advance.

FIG. 5 is a schematic diagram of a beam indicating advanced scheduling.

FIG. 6 is a schematic flowchart of a resource scheduling method according to an embodiment of the present application.

FIG. 7 is another schematic diagram of scheduling backhaul resources in advance.

FIG. 8 is another schematic diagram of scheduling backhaul resources in advance.

FIG. 9 is another schematic flowchart of a resource scheduling method according to an embodiment of the present application.

FIG. 10 is another schematic diagram of scheduling backhaul resources in advance.

FIG. 11 is another schematic diagram of scheduling backhaul resources in advance.

FIG. 12 is another schematic flowchart of a resource scheduling method according to an embodiment of the present application.

FIG. 13 is another schematic diagram of scheduling backhaul resources in advance.

FIG. 14 is a schematic diagram of scheduling uplink backhaul resources and downlink backhaul resources in advance.

FIG. 15 is a schematic block diagram of a resource scheduling apparatus according to an embodiment of the present application.

FIG. 16 is another schematic block diagram of a resource scheduling apparatus according to an embodiment of the present application.

FIG. 17 is another schematic block diagram of a resource scheduling apparatus according to an embodiment of the present application.

FIG. 18 is another schematic block diagram of a resource scheduling apparatus according to an embodiment of the present application.

FIG. 19 is an example of using a bitmap to indicate access link resource allocation according to an embodiment of the present application.

FIG. 20 is an example of using a character string to indicate access link resource allocation according to an embodiment of the present application.

FIG. 21 is an example of using a bitmap of bit grouping to indicate access link resource allocation according to an embodiment of the present application.

FIG. 22 is a schematic diagram of activating or deactivating a backhaul link dynamic resource according to an embodiment of the present application.

detailed description

The technical solutions in this application will be described below with reference to the drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: a global mobile communication (GSM) system, a code division multiple access (CDMA) system, and a broadband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, 5th generation in the future, 5G) system or new radio (NR).

The terminal in this embodiment of the present application may refer to a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user Device. The terminal can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital processing (PDA), and a wireless communication function. Handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or terminals in the future evolved public land mobile network (PLMN) The equipment and the like are not limited in the embodiments of the present application.

The network device in the embodiment of the present application may be a device for communicating with a terminal. The network device may be a Global System (GSM) system or a Code Division Multiple Access (CDMA) system. Base station (BTS) can also be a base station (nodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evolved NodeB) in an LTE system , ENB or eNodeB), or a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, access point, vehicle device, wearable device, and future 5G The network device in the network or the network device in a future evolved PLMN network is not limited in the embodiments of the present application.

FIG. 1 shows a wireless communication system involved in the present application. The wireless communication system may be a long term evolution (LTE) system, or a 5th generation (5G) system, a new air interface (NR) system, and machine-to-machine communication ( machine, machine, M2M) system, etc. As shown in FIG. 1, the wireless communication system 100 may include: a network device 101, a terminal 105, and a relay device 103. The wireless communication system 100 includes a single-hop relay system or a multi-hop relay system. In the multi-hop relay system, as shown in FIG. 1, there are at least two relay devices 103 between the network device 101 and the terminal 105. In a single-hop relay system, there is only one relay device 103 between the network device 101 and the terminal 105.

Network devices can be used to communicate with one or more terminals, and can also be used to communicate with one or more network devices with partial terminal functions (such as communication between macro base stations and micro base stations, such as access points). . The network device can be a base transceiver station (BTS) in a time-division synchronous code division multiple access (TD-SCDMA) system, or it can be an evolutionary base station in an LTE system. B, eNB), and the base station gNB in the 5G system and the new air interface (NR) system. In addition, the network device may also be an access point (AP), a transmission node (transRP), a central unit (CU), or other network entities, and may include some or all of the functions of the above network entities Features.

The terminal involved in this embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. The terminal can communicate with one or more core networks via a radio access network (RAN). The terminal 105 may be stationary or mobile. For example, the terminal 105 may be a mobile device, a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile client, a handheld device, a smart watch, a notebook computer, and a tablet computer. Or smart bracelet.

The relay device may be a relay base station, such as a micro base station. The relay device may also be a terminal providing a relay function. The relay device can also be a relay transceiver node, customer terminal equipment (CPE), relay transceiver, relay agent, transmission and reception point (TRP), or relay transmission and reception point (TRP). relaying (TRP, rTRP) and other network entities. In specific implementation, the relay devices can be distributed at the cell edge, which can expand the coverage of network devices.

In the wireless communication system 100, an access link refers to a wireless link between a relay device and a terminal. The access link includes an uplink (UL) and / or a downlink (DL) access link. Backhaul link (BH) refers to the wireless link between network equipment and relay equipment, or the link between relay equipment and relay equipment. The backhaul link includes an uplink and / or a downlink backhaul link.

In the wireless communication system 100, the relay device 103 between the network device 101 and the terminal 105 can be used to forward wireless signals between the network device 101 and the terminal 105. Specifically, during downlink transmission, the relay device 103 is responsible for forwarding the wireless signal transmitted by the network device 101, and finally transmits the wireless signal to the terminal 105. If included in the uplink transmission, the relay device 103 is responsible for forwarding the wireless signal transmitted by the terminal 105, and finally transmits the wireless signal to the network device 101.

It should be noted that the wireless communication system 100 shown in FIG. 1 is only for a clearer explanation of the technical solution of the present application, and does not constitute a limitation on the present application. Those skilled in the art may know that with the evolution of network architecture and new services, In the emergence of scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

As shown in FIG. 2, it is a schematic structural diagram of a network device according to an embodiment of the present application. The network device may include a baseband processing unit (building baseband unit (BBU) 201) and a remote radio module (remote radio unit (RRU) 202). , RRU 202 and antenna feed system 203 are connected, BBU 201 and RRU 202 can be disassembled and used as required. For example, the RRU can be remotely located in a cloud platform. The structure shown in FIG. 2 may be a structure of a network device or a structure of a relay device. BBU 201 is used to implement the operation and maintenance of the entire network equipment or relay equipment, to implement signaling processing, wireless resource management, and transmission interfaces to the packet core network, and to implement the physical layer, medium access control layer, L3 signaling, and operation and maintenance. Master control function. RRU 202 is used to realize the conversion between the baseband signal and the radio frequency signal, to realize the demodulation of the wireless received signal, the modulation and power amplification of the transmitted signal, and so on. The antenna feed system 203 may include multiple antennas for receiving and sending wireless air interface signals. Those skilled in the art can understand that in the specific implementation process, the network device may also adopt other general hardware structures, and is not limited to the hardware structure shown in FIG. 2. The functions related to the embodiment of the present application in the network device may also be implemented by a Cloud Access Network (CloudRAN) device. The CloudRAN may adopt a distributed networking mode or a centralized networking mode, or a combination of the two networking modes described above. .

The communication between the network equipment and the relay equipment or terminal follows a certain protocol layer structure. For example, the control plane protocol layer structure may include a radio resource control (RRC) layer, a packet data convergence layer protocol (PDCP) layer, a radio link control (RLC) layer, and a media interface. Functions of the protocol layer such as the media access control (MAC) layer and the physical layer. The user plane protocol layer structure may include the functions of the protocol layers such as the PDCP layer, the RLC layer, the MAC layer, and the physical layer; in one implementation, the PDCP layer may also include a service data adaptation (SDAP) layer .

The functions of these protocol layers may be implemented by one node, or may be implemented by multiple nodes; for example, in an evolved structure, a network device may include a centralized unit (CU) and a distributed unit (DU). Multiple DUs can be controlled centrally by one CU. The CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer are set in the DU.

A network device can implement radio resource control (RRC), packet data convergence protocol (PDCP), radio link control (RLC), and media access control (RPC) from one node. media, access control (MAC) and other protocol layer functions; or multiple nodes can implement these protocol layer functions; for example, in an evolved structure, network equipment can include CUs and DUs, and multiple DUs can be centralized by a CU control. The CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer are set in the DU.

This division of the protocol layer is only an example. It can also be divided at other protocol layers, for example, at the RLC layer. The functions of the RLC layer and above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU. Alternatively, it is divided in a certain protocol layer, for example, setting some functions of the RLC layer and functions of the protocol layer above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer in the DU. In addition, it can also be divided in other ways, such as by delay, and the functions that need to meet the delay requirements in processing time are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU.

In addition, the radio frequency device can be remote, not placed in the DU, or integrated in the DU, or part of the remote can be integrated in the DU, without any restrictions here.

Further, the control plane (CP) and user plane (UP) of the CU can also be separated and separated into different entities for implementation, respectively the control plane CU entity (CU-CP entity) and the user plane CU entity (CU-UP entity). .

The signaling generated by the CU may be sent to the relay node or terminal through the DU, or the signaling generated by the relay node or terminal may be sent to the CU through the DU. The DU can directly transmit to the terminal or the CU through protocol layer encapsulation without parsing the signaling. If the following embodiments involve the transmission of such signaling between the DU and the terminal, at this time, the sending or receiving of the DU to the signaling includes this scenario. For example, the signaling at the RRC or PDCP layer will eventually be processed as the PHY layer signaling and sent to the relay node or terminal, or it will be transformed from the received PHY layer signaling. Under this architecture, the RRC or PDCP layer signaling can also be considered to be sent by the DU, or sent by the DU and the radio frequency.

In the embodiment of the present application, the network device may be gNB (including gNB-CU, gNB-DU) and the like in 5G.

According to existing protocols, relay nodes in 5G are also called integrated access and backhaul (IAB) nodes. IAB nodes can be divided into two types: layer three IAB nodes and layer two IAB nodes. The second layer IAB node has two functions: mobile terminal (MT) and DU: the MT function is used for communication between the IAB node and the upper node, and the DU function is used for communication between the IAB node and the lower node. Similarly, the layer 3 IAB nodes also have the function of communicating with the upper node and the function of communicating with the lower node, respectively.

In the embodiment of the present application, a message from one node to another node (for example, an upper node to a relay node, a relay node to another relay node, etc.) can be sent and received by at least the following two types of methods:

1) Air interface signaling, such as RRC signaling, medium access control element (MAC, CE), DCI, uplink control information (uplink control information, UCI), etc .;

2) Interfaces between network devices or between internal modules of network devices, such as Xn interface between 5G access network nodes, F1 interface between CU and DU, enhanced F1 interface between CU and IAB node DU functions, Interfaces between different IAB nodes, etc.

It should be understood that this application does not specifically limit the signaling or interface that carries various types of messages.

As shown in FIG. 3, this is a schematic structural diagram of a terminal provided by an embodiment of the present application. Taking the terminal as a mobile phone as an example, the mobile phone may include a radio frequency (RF) circuit 310, a memory 320, other input devices 330, and a display Screen 340, sensor 350, audio circuit 360, I / O subsystem 370, processor 380, and power supply 390 and other components. The following describes each component of the mobile phone in detail with reference to FIG. 3:

The processor 380 is connected to the RF circuit 310, the memory 320, the audio circuit 360, and the power source 390, respectively. The I / O subsystem 370 is connected to other input devices 330, a display screen 340, and a sensor 350, respectively. Among them, the RF circuit 310 may be used to send and receive voice or data information. In particular, the downlink circuit 310 receives the downlink information of the network device and processes it to the processor 380. The memory 320 may be used to store software programs and modules. The processor 380 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 320. The other input device 330 may be used to receive inputted numeric or character information, and generate key signal inputs related to user settings and function control of the mobile phone. The display screen 340 may be used to display information input by the user or information provided to the user and various menus of the mobile phone, and may also accept user input. The display screen 340 may include a display panel 341 and a touch panel 342. The sensor 350 may be a light sensor, a motion sensor, or other sensors. The audio circuit 360 may provide an audio interface between the user and the mobile phone. The I / O subsystem 370 is used to control input and output external devices. The external devices may include other device input controllers, sensor controllers, and display controllers. The processor 380 is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. The processor 380 runs or executes software programs and / or modules stored in the memory 320, and calls data stored in the memory 320 to execute. Various functions and processing data of the mobile phone, so as to monitor the mobile phone as a whole. The power supply 390 (such as a battery) is used to supply power to the foregoing components. Preferably, the power supply can be logically connected to the processor 380 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption through the power management system.

Although not shown, the mobile phone may further include a functional module or device such as a camera, a Bluetooth module, and the details are not described herein again. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 3 does not constitute a limitation on the mobile phone, and may include more or fewer parts than those shown in the figure, or combine certain parts, or arrange different parts.

The relay device may be a relay base station, such as a micro base station, or a terminal providing a relay function. The structure of the relay device can refer to the structure diagram of the network device or terminal.

For convenience of explanation, the words appearing in this application will be described.

The first node is a previous hop device, a superior node, or an upstream node of a second node on a link from a network device to a terminal. The second node is a next hop device, a lower node, or a downstream node of the first node on the link from the network device to the terminal. The second node is a previous hop device, a superior node, or an upstream node of a third node on the link from the network device to the terminal, or a peer node of the third node.

Or the third node is a next-hop device, a lower-level node, or a downstream node of the second node on the link from the network device to the terminal, or a peer node of the second node. The first node may be a network device or a relay device, the second node may be a relay device or a terminal, and the third node may be a relay device or a terminal. For example, if the first node is a network device or a relay device, the second node is a next hop relay device of the first node, the third node is a relay device of the same level of the second node, or the third node is a first node The next-hop relay device of the two nodes or the terminal accessing the second node.

It should be further explained that the peer nodes described herein may be two nodes without direct communication, or two independent nodes linked to an upper node at the same time, or linked to the same lower node. For example, if the first node is the network device 101, the second node may be the first relay device 103, and the third node may also be the second relay device 103 (the second relay device 103 may be the first relay device A node at the next level or a node at the same level) or the terminal 105. Alternatively, if the first node is the first relay device 103, the second node may also be the second relay device 103 (the second relay device 103 may be a node below the first relay device 103 or a sibling Node), the third node is a third relay device 103 (the third relay device 103 may be a node below the second relay device 103 or a node at the same level) or the terminal 105.

The embodiments of the present application are applied to a wireless communication system, which includes a first node, a second node, and a third node. The first node is a node above the second node and the third node, and the second node may be a node above the third node, or the second node and the third node are the same node.

In the embodiment of the present application, when the first node needs resource configuration, the second node sends information about its available resources to the first node, the first node configures the backhaul resource to the second node, and, in the subsequent scheduling process In the first node, the first node may send scheduling information to the second node to indicate the actually scheduled backhaul resource, and the second node may receive the signal sent by the first node on the actually scheduled backhaul resource.

Backhaul link: The link where the second node communicates with the first node is called the backhaul link.

Access link: The link where the second node communicates with the third node is called the access link.

Downlink control region: The time-frequency position occupied by the physical downlink control channel (PDCCH). In LTE, the PDCCH is always located in the first m of a subframe (the possible values of m are 1, 2, 3, and 4) Symbol. It should be noted that the positions of the E-PDCCH and R-PDCCH in LTE are not in the first m symbols.

In NR, the downlink control area can be flexibly configured by RRC signaling through a control resource set (CORESET) and a search space set (search space set):

The control resource set may be configured with information such as a frequency domain position of a PDCCH or a control channel element (CCE), and a continuous number of symbols in the time domain (the maximum value is 3);

The search space set can be configured with information such as a detection period and an offset of the PDCCH, and a start symbol in a time slot.

For example, the search space set may configure the PDCCH period to be one slot, and the time domain start symbol is symbol 0, then the terminal or the relay node needs to detect the PDCCH at the start position of each slot.

Downlink data area: physical downlink shared channel (PDSCH) and time-frequency positions occupied by other downlink signals, where the remaining downlink signals may include at least one of the following signals: channel state information reference signal (channel state information- reference signal (CSI-RS), synchronization signal / broadcast channel block (SS / PBCH block), etc.

Scheduling backhaul resources in advance

The following behavior example, the transmission of the backhaul link can be divided into two levels:

(1) First level: The first node configures the backhaul resource set for the second node, and this configuration can be completed through high-level signaling (such as RRC signaling). In a possible implementation manner, the first node configures an access resource set for the second node, and the second node infers the backhaul resource set through the access resource set.

(2) Second level: The first node configures the actual backhaul link transmission for the second node. This configuration can be done through higher-level signaling such as RRC, or through lower-level signaling (for example, media access control Layer Control Element (MAC CE) or DCI). For example, periodic CSI-RS signals are generally configured through RRC signaling, semi-persistent CSI-RS signals can be activated through MAC CE, and PDSCH and aperiodic CSI-RS are generally scheduled or triggered by DCI.

Taking the PDSCH transmission of the return link as an example, the superior node determines the PDSCH transmission parameters of the return link through DCI, such as the time domain resource location, transmission bandwidth, modulation and coding scheme (MCS), and the number of transmission streams. , Where the time domain resource location should be within the above set of return resources. The amount of data that the backhaul link needs to carry is dynamically changed. When the amount of data is small, some of the backhaul resources configured by higher-layer signaling may not be PDSCH-transmitted. In the LTE relay system, the PDSCH of the backhaul link and the corresponding PDCCH are located in the same subframe. When a backhaul link subframe is not scheduled or the relay node does not detect the corresponding PDCCH, this subframe is wasted. .

In order to avoid excessive resource waste, the relay node can recycle unscheduled backhaul resources. Specifically, when the relay node finds that the backhaul resources are not scheduled, it can use it to perform access link transmission. At this time, the backhaul resource can also be used as an access link, so this application is also referred to as an optional backhaul resource.

In order for the relay node to recover the backhaul resources, the first node may configure the PDCCH corresponding to the optional backhaul resource in advance. If the second node detects the scheduling DCI, it receives a signal on the corresponding optional backhaul resource. ; Or the second node does not detect the scheduling DCI, and instead sends an access link signal. By scheduling in advance, the relay node can recycle the unscheduled optional backhaul resources. In order to ensure advance scheduling, the advance of the PDCCH should be sufficient for relay nodes to perform operations such as DCI decoding and access link signal generation. Therefore, the advance should meet a minimum threshold K ₁ , where K ₁ may be defined by the protocol and also It may be reported by the relay node.

FIG. 4 shows a schematic diagram of the advance scheduling of backhaul resources. The relay node will receive the PDCCH at the kth slot in the backhaul link. If the relay node detects the scheduling DCI, it will start at the k + K _1st time. The slot receives the PDSCH sent by the upper node. If no DCI is detected in the k th slot, the PDSCH is sent to the lower node in the k + K ₁ slot.

When the relay node supports space division or frequency division multiplexing of the backhaul access link, that is, the relay node receives the downlink backhaul link and the uplink access link at the same time, or the relay node sends the uplink backhaul link and the downlink at the same time. When accessing the link, advance scheduling can also be used. Taking the relay node receiving both the downlink backhaul link and the uplink access link as an example, after the relay node detects the downlink scheduling DCI in the kth time slot, it can schedule the subordinate terminal equipment according to the DCI content and make it send the uplink connection. the link with the scheduled downlink backhaul composition spatial division multiplexing (space division multiplexing, SDM), the relay node receives the backhaul downlink and uplink access link at the same time slot k + K _1, In this case, the duration of K ₁ time slot requires the relay node to parse the return link DCI and send the access link DCI. At the same time, the subordinate terminal equipment needs to parse the access link DCI and prepare for access. Link uplink transmission content.

It should be understood that, in the embodiment of the present application, a time slot may include a control area and a data area. As shown in FIG. 4, several symbols (slashed areas) in front of the time slot k are its control area, and the back of the time slot k is Several symbols (blank areas) are its data areas. On the return link, the relay node receives or detects the PDCCH sent by the upper node in the control area, and receives the PDSCH and / or other signals (such as CSI-RS) sent by the upper node in the data area; on the access link The relay node sends the PDCCH to the lower node in the control region, and sends the PDSCH and / or the remaining signals (such as CSI-RS) to the lower node in the data region.

It should also be understood that the positions of the control area and the data area in this time slot are only schematic. It is assumed that the control area of the backhaul resource is located at the head of the time slot, and it is assumed that the head of some backhaul resources also has an access chain. The above two assumptions are only one possible implementation way, and this application does not exclude other implementations. For example, the control area of the backhaul resource may not be located at the beginning of the time slot, but is scheduled to return to the time slot. The access link PDCCH may not be transmitted.

It should also be understood that the backhaul resource in the embodiments of the present application may be a time unit, which may be a time slot, multiple time slots, or multiple symbols, etc. This application does not make any reference to this. Any restrictions. In addition, the upper-level node may also indicate frequency domain information when configuring the backhaul resource, for example, indicating a part of bandwidth (BWP) information of the backhaul resource. This application does not limit the frequency domain information of the backhaul resource.

Beam Indication Scheduling

In NR, the beam indication when DCI schedules the PDSCH also uses advance scheduling. The PDSCH reception of the terminal or the relay node is considered here. This application assumes that the relay node also uses the same or similar mechanism as the terminal to dynamically indicate the beam. As shown in FIG. 5, the relay node (or terminal) detects the scheduling DCI of the PDSCH, where a scheduling delay n is indicated, and when the scheduling delay is greater than a preset threshold K ₂ (the parameter Threshold-Sched-Offset in the NR) When the relay node (or terminal) uses the transmission configuration indicator (TCI) in the DCI to determine the receiving beam; and when the scheduling delay n is less than the preset threshold K ₂ , the relay node (or the terminal) ) Use a default receive beam.

It should be understood that there is a difference between the advance scheduling of backhaul resources and the advance scheduling of beam indication in the embodiments of the present application. The advance scheduling of backhaul resources is to make the relay node (or terminal) recover the unoccupied backhaul resources. The relay node knows that the current DCI will use advance scheduling to indicate a subsequent time slot that meets the minimum threshold, and the current time slot ( The purpose of time slot k in Figure 4 (access link or backhaul link) has been determined in advance by (upper node or relay node), which will not cause waste of resources; the advance scheduling of the beam indication is to make the terminal or center After having enough time to detect DCI and switch analog beams, the terminal or relay node does not know whether the current DCI will use early scheduling, but determines whether to schedule in advance based on the results of the DCI analysis. Therefore, the relay node still needs to determine the current time slot. (Slot k in FIG. 5).

When scheduling advance n≥K ₃ = max (K ₁ , K ₂ ), early scheduling can bring two benefits:

(1) The relay node can recycle unscheduled optional backhaul resources;

(2) The upper node can indicate the beam for the lower node through the TCI in the DCI.

In order to improve the flexibility of dynamic backhaul resource configuration, the number of optional backhaul resources should not be too small. However, an optional backhaul slot generally needs to correspond to one PDCCH reception. If m optional configurations are configured in a cycle, The backhaul time slot, the relay node (or terminal) needs to perform m times of PDCCH reception and detection, and excessive PDCCH reception will increase the backhaul link overhead (including backhaul and access link) of the relay node. Guard interval for handover), and the relay node receiving too many PDCCHs is not good for its PDCCH transmission on the access link; on the other hand, too few optional resource configurations will affect system throughput and flexibility.

An embodiment of the present application proposes a method for resource scheduling, which can ensure the allocation of dynamic backhaul resources (that is, a relay node or terminal can recycle unscheduled backhaul resources) during the allocation and scheduling of backhaul resources, At the same time, excessive PDCCH reception by the relay node or terminal is avoided.

FIG. 6 shows a schematic flowchart of a resource scheduling method 400 according to an embodiment of the present application. As shown in FIG. 6, the method 400 includes:

S410: The first node sends resource configuration information to the second node, and the second node receives the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set Including one fixed backhaul resource and multiple dynamic backhaul resources;

S420. In the fixed backhaul resource, the first node sends first instruction information to the second node, the second node receives the first instruction information sent by the first node, and the first instruction information is used to indicate the Information of scheduled dynamic backhaul resources among multiple dynamic backhaul resources;

S430. The first node sends a signal to the second node on the scheduled dynamic backhaul resource, and the second node receives a signal sent by the first node on the scheduled dynamic backhaul resource.

Specifically, the first node sends resource configuration information to the second node, where the resource configuration information indicates a time domain location of a backhaul resource set, the backhaul resource set includes a fixed backhaul resource and multiple dynamic backhauls Resource, after the backhaul resource set is configured, the first node may send first indication information on the fixed backhaul resource set of the backhaul resource set, and the first indication information indicates the multiple backhaul resource sets. Information about the scheduled dynamic backhaul resource set. After receiving the information, the second node can determine that the first node will send a signal on the scheduled dynamic backhaul resource, and the second node sends the signal on the scheduled dynamic backhaul resource. A signal sent by the first node is received on the backhaul resource.

Optionally, the first node is a network device, a relay node, or a terminal having a function of a relay node.

Optionally, the second node is a relay node or a terminal having a relay node function.

It should be understood that the fixed backhaul resource in the embodiment of the present application is a time-frequency resource for the second node to receive the first indication information.

It should also be understood that the dynamic backhaul resource in the embodiments of the present application can be understood as a backhaul resource that can be scheduled, that is, although the first node is configured with the multiple dynamic backhaul resources for the second node, it is actually scheduled In the process, the second node needs to determine which of the multiple dynamic backhaul resources are actually scheduled backhaul resources according to the first instruction information.

It should also be understood that in the embodiments of the present application, the resource configuration information may be generated by the first node and sent to the second node, and the resource configuration information may also be generated by the control node and sent to the first node, and passed through the first node. A node sends to the second node, and the control node is a network device or a relay node different from the first node.

In the embodiment of the present application, the first node configuring the backhaul resource set to the second node includes but is not limited to the following two methods.

Method 1: Individual configuration

The first node may configure multiple backhaul resources for the second node. The multiple backhaul resources include a fixed backhaul resource and multiple dynamic backhaul resources. At the same time, the first node is also the second node. The correspondence between the fixed backhaul resource and the multiple dynamic backhaul resources is configured.

It should be understood that the granularity of the configuration of the backhaul resource may be a time unit, for example, it may be one time slot, or multiple time slots, or multiple symbols. In the embodiment of the present application, the configuration granularity of the time slots is mainly used For explanation, but does not exclude the rest of the configuration granularity, the "backhaul resource" in the embodiments of the present application may also be called "backhaul slot", or "backhaul resource slot". When configuring the backhaul resource time unit, it is necessary to also indicate the parameter set used by the time unit, such as the subcarrier interval, cyclic prefix (CP) type or length, and DMRS type. Among them, some parameters can be obtained through BWP configuration. As mentioned earlier, the fixed backhaul resource is the resource that sends the first indication information, and the first indication information is generally sent by the PDCCH. In NR, the time resource occupied by the PDCCH is usually several time domain symbols (for example, 1 to 3 Symbols) instead of the entire time slot. Therefore, in this application, a fixed backhaul time slot refers to a time slot containing a fixed backhaul resource, rather than the entire time slot being a fixed backhaul resource.

A specific implementation manner is that the first node allocates multiple backhaul resource time slots to the second node, including at least one fixed backhaul resource time slot, and each dynamic backhaul time slot is associated with a fixed backhaul time. The associated slot indicates that the first indication information corresponding to the dynamic return slot is sent on the fixed return slot.

In another specific implementation manner, the first node allocates multiple backhaul resource time slots to the second node, and each backhaul resource time slot is associated with a backhaul resource time slot, indicating the first An indication message is sent on the associated backhaul resource slot. When a backhaul slot associated with a backhaul slot is itself, this backhaul slot is the aforementioned fixed backhaul slot.

In the above two implementation manners, the association relationship of the backhaul time slot may be configured at the same time as the backhaul time slot is configured, or may be configured by separate signaling. After the association relationship is configured, the first node should also configure the location of the PDCCH containing the first indication information to the second node. The PDCCH should be in a fixed return time slot. When there are multiple fixed return time slots, It is possible to configure a PDCCH for each fixed backhaul slot. In NR, the time-frequency position occupied by the PDCCH is obtained by the configuration of CORESET and search space.

In addition, there is another implementation manner in which the first node allocates multiple backhaul resource time slots to the second node, and implicitly indicates the location of the backhaul time slot by configuring the PDCCH position. Specifically, the time-frequency position of the PDCCH configured for the second node by the first node is a fixed backhaul slot position, and the second node may configure multiple backhaul slots indicated by the first indication information included in the PDCCH. The configured PDCCH may be located on a configured backhaul resource slot, or may be located on an independent slot. Similarly, the first node may configure multiple PDCCHs to indicate multiple fixed backhaul slots.

It should be noted that the above return time slots are configured periodically, and multiple associated return time slots should generally have the same period. The period of the backhaul slot can be configured separately, or the remaining configured periods can be directly used. For example, the period of the backhaul slot can be configured with the TDD uplink and downlink common configuration adopted by the first node (the parameter tdd-UL-DL- ConfigurationCommon) cycle. In some cases, the first node can be configured with two sets of TDD uplink and downlink common configurations, and the period of the two sets of configurations is the same. However, the specific uplink and downlink timeslot configurations can be different. At this time, similar two sets of configurations can be used for the backhaul resource. The PDCCH also needs a search space configuration period. In general, the search space configuration period should be consistent with the fixed backhaul resource period, or the search space configuration period should be an integer multiple of the fixed backhaul resource period.

Method 2: Backhaul resource group configuration

The first node may configure a backhaul resource group for the second node, and the configuration of the backhaul resource group is:

{

Return the resource group number;

Return the resource group period;

The time domain position of the first time unit (fixed backhaul resource) in the backhaul resource period;

The time domain position of the second time unit (dynamic backhaul resource) in the backhaul resource period;

The time domain position of the third time unit (dynamic backhaul resource) in the backhaul resource period;

...

The time domain position of the Nth time unit (dynamic backhaul resource) in the backhaul resource period;

}

It should be understood that the above configuration content indicates that the first node may configure multiple backhaul resource groups to the second node, which is used to avoid that one fixed backhaul resource indicates too many dynamic backhaul resources, and at the same time improve the configuration flexibility.

It should also be understood that the granularity of the configuration of the backhaul resource may be one time unit, for example, it may be one time slot, or multiple time slots, or multiple symbols. In this embodiment of the present application, the configuration of time slots is mainly used. The granularity is explained, but the rest of the configuration granularity is not excluded. In addition, the configuration of the above resource group has only one fixed backhaul resource, but this application does not exclude the case where there are multiple fixed backhaul time slots in the backhaul resource group. When configuring the time unit of the backhaul resource, it is also necessary to indicate the parameter set used by the time unit, such as the subcarrier interval, CP type or length, and DMRS type. Among them, some parameters can be obtained through BWP configuration. As mentioned earlier, the fixed backhaul resource is the resource that sends the first indication information, and the first indication information is generally sent by the PDCCH. In NR, the time resource occupied by the PDCCH is usually several time domain symbols (for example, 1 to 3 Symbols) instead of the entire time slot. Therefore, in this application, a fixed backhaul time slot refers to a time slot containing a fixed backhaul resource, rather than the entire time slot being a fixed backhaul resource.

In a possible implementation, when the first node configures the backhaul resource for the second node, the frequency domain information of the backhaul resource may also be configured. First, the first node may configure when the backhaul resource is configured for the second node. BWP information, including bandwidth information. Second, the first node can directly configure the frequency domain information of the backhaul resource for the second node, such as the frequency domain position and range. The configuration granularity of the frequency domain information is generally an integer multiple resource block (RB). When the frequency domain position and range are configured for the backhaul resource, it means that the backhaul link scheduled by the first node will not exceed this range, and the second node can schedule the access link outside the range.

It should be noted that the fixed backhaul time slot in the second method may not be directly configured, but may be obtained by the PDCCH configuration containing the first indication information. The first time slot of a backhaul resource group.

In configuration mode 2, the return time slots are configured in groups, and the dynamic return time slots in the same group are indicated by the first indication information on a fixed return time slot. Therefore, no additional signaling is required to configure the return time slots. Relationship. After the backhaul resource group is configured, the first node should also configure the location of the PDCCH containing the first indication information to the second node. The PDCCH should be in a fixed backhaul slot. When there are multiple backhaul slot groups, The PDCCH may be configured for a fixed backhaul slot of each backhaul slot group. In NR, the time-frequency position occupied by the PDCCH is obtained by the configuration of CORESET and search space.

FIG. 7 shows a schematic diagram of early scheduling of backhaul resources. As shown in FIG. 7, the first node configures a second backhaul slot with a fixed backhaul slot (slot 0) and multiple dynamic backhaul slots. (

Slots

2, 5 and 8).

Specifically, the fixed backhaul resource may be a control area of time slot 0, and the multiple dynamic backhaul resources may be data areas of

time slots

2, 5, and 8. The second node may receive the first indication information sent by the first node in the control area of time slot 0, where the first indication information indicates that the data areas of

time slots

2, 5, and 8 are scheduled return resources, Or, the first indication information indicates that neither of the data areas of

time slots

2, 5, and 8 is a scheduled return resource, or the first indication information indicates that the data areas of

time slots

2, 5, and 8 are At least part of it is the scheduled backhaul resource.

For example, if the first indication information indicates that the data area of time slot 2 is a scheduled backhaul resource, and the data areas of

time slots

5 and 8 are not scheduled, the second node may schedule the data area of time slot 2 After receiving the PDSCH sent by the first node, the data areas of

time slots

5 and 8 that are not scheduled can also be used to access the link resources (or other uses).

It should be understood that, in order to enable the second node to recycle unscheduled dynamic backhaul resources, the interval between the fixed backhaul resources and the scheduled dynamic backhaul resources (time slot 0 and time slot 2 in FIG. 7) should be indicating (or dynamic indication spatial relationship QCL) is greater than the threshold value K ₁ above, if the first node need for dynamic beam dynamic backhaul resource at the scheduled, the fixed backhaul resources dynamically scheduled The interval between the backhaul resources should be greater than the threshold K _{2 above} .

In the embodiment of the present application, the control area and the data area do not correspond one-to-one, but one control area corresponds to multiple data areas. In the subsequent scheduling process, the second node may receive multiple data areas in one control area. Schedule DCI, or receive indication information whether multiple data regions are scheduled.

It should be understood that in the embodiment of the present application, various RRC configurations (or other high-level configurations) of the second node may be configured and sent by the first node, or may be configured by another network device (for example, gNB, CU, or DU). It is sent by the first node after configuration, which is not limited in this application.

The resource scheduling method in the embodiment of the present application receives instruction information at one backhaul resource, and the indication information indicates scheduled backhaul resources among multiple backhaul resources, which helps to avoid the terminal while ensuring system flexibility. Or the switching cost of the relay node.

Optionally, the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource. Generally, the downlink scheduling information is carried by DCI, for example, DCI formats 1_0 and 1_1 in NR.

Specifically, the first indication information includes downlink scheduling parameters of each of the scheduled dynamic backhaul resources. After receiving the first indication information, the second node may perform dynamic scheduling according to each of the scheduled dynamic backhaul resources. Downlink scheduling parameters for backhaul resources, and receive signals on each of these dynamic backhaul resources.

It should be understood that the signal received by the second node on each scheduled dynamic backhaul resource may be a signal sent by the first node or a signal sent by other nodes, which is not limited in this application.

Optionally, the first indication information is at least one DCI, and each DCI in the at least one DCI corresponds to one of the scheduled dynamic backhaul resources.

Optionally, the method 400 further includes:

At the fixed backhaul resource, the first node sends a downlink scheduling parameter of the second scheduled dynamic backhaul resource to the second node, and the second node receives the second scheduled dynamic backhaul sent by the first node Downlink scheduling parameters of transmission resources, the scheduled dynamic backhaul resource includes the second scheduled dynamic backhaul resource.

Optionally, the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in adjacent time units .

Specifically, in the actual scheduling process, the system rarely has no return data in one cycle. Therefore, in order to further reduce the switching overhead, the second pass sent by the first node can be received on a fixed return resource. The downlink scheduling parameter of the scheduled dynamic backhaul resource, the second scheduled dynamic backhaul resource and the fixed backhaul resource are located in the same time unit, or the second scheduled dynamic backhaul resource and the fixed backhaul Resources are located in adjacent time units.

The following description uses the second scheduled dynamic backhaul resource and the fixed backhaul resource in the same time slot as an example for description.

It should be understood that since the interval between the fixed backhaul resource and the second scheduled dynamic backhaul resource is 0, even if the second node does not receive the downlink scheduling parameters of the second scheduled dynamic backhaul resource, the second node also It may not be possible to recycle the second scheduled dynamic resource.

In a possible implementation, the periodic or semi-persistent signal configured by the first node for the second node should be located on a fixed backhaul resource or a second scheduled dynamic backhaul resource, and the periodic signal includes CSI -RS, SS / PBCH block, TRS, etc.

In another possible implementation, when the periodic signal configured by the first node is outside the fixed backhaul resource or the second scheduled dynamic backhaul resource, the second node ignores this configuration, or the second node may not receive A configured signal that is outside the fixed backhaul resource or the second scheduled dynamic backhaul resource. A specific example is as follows. The process of the second node from initial access to normal work is divided into two phases.

Phase 1: The second node first accesses the first node with a separate terminal function. The first node can configure periodic signals such as CSI-RS for the second node, and then the first node configures relays such as return resources for the second node. Node-specific configuration.

The second stage: the second node starts its network equipment function to serve the lower nodes.

After the start of the second phase, if the periodic signal configured by the first node in the first phase is outside the fixed backhaul resource or the second scheduled dynamic backhaul resource, the second node ignores this configuration, or the second node may not Receive a configured signal that is outside the fixed backhaul resource or the second scheduled dynamic backhaul resource. Alternatively, after the second phase starts, the second node ignores all the signals configured in the first phase.

FIG. 8 shows another schematic diagram of advance scheduling. As shown in FIG. 8, the first node configures the second node with fixed backhaul resources (control area of time slot 2) and three dynamic backhaul resources ( Data area of

time slots

2, 5 and 8), the PDCCH received by the second node in the control area of time slot 2 indicates downlink scheduling information of the data area of

time slots

2, 5 and 8, or the second node is in The control area of time slot 2 receives the DCI of the data areas of

time slots

2, 5, and 8 (for example, the DCI for scheduling PDSCH), and the DCI received in the control area of time slot 2 indicates the downlink scheduling parameters of time slot 2, The DCI received in the control area of the time slot 2 indicates the downlink scheduling parameter of the time slot 5, and the DCI received in the control area of the time slot 2 indicates the downlink scheduling parameter of the time slot 8.

In this example, the data area of slot 2 is the second scheduled dynamic backhaul resource.

It should be understood that each dynamic backhaul resource in FIG. 8 is scheduled by a DCI with a fixed backhaul slot. FIG. 8 is only schematic and does not represent the actual time-frequency domain position of the DCI.

It should also be understood that the DCI received in the control area of the time slot 2 may also carry information indicating the received beam in the data area of the time slot 5 and the DCI received in the control area of the time slot 2 may also carry the field indicating the time slot. The information of the receiving beam in the data region of 8 is used, and the receiving beam in the data region of time slot 2 may adopt the default receiving beam or a previously configured receiving beam.

Optionally, the method further includes:

At the fixed backhaul resource, the second node receives information of a receiving beam of a third scheduled dynamic backhaul resource sent by the first node, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource. Pass on resources.

Optionally, if the scheduled dynamic backhaul resource includes a second scheduled dynamic backhaul resource, the second scheduled dynamic backhaul resource is located in the same time unit or adjacent to the fixed backhaul resource Time unit dynamic return resource, the first indication information further includes information used to indicate a receiving beam of a third scheduled dynamic return resource, and the third scheduled dynamic return resource is the scheduled dynamic At least part of the dynamic backhaul resources other than the second scheduled dynamic backhaul resource.

Optionally, if the scheduled dynamic backhaul resource does not have a dynamic backhaul resource that is located in the same time unit or an adjacent time unit as the fixed backhaul resource, the first indication information further includes an instruction for indicating a third Information about the received beam of the scheduled dynamic backhaul resource, and the third scheduled dynamic backhaul resource is at least a part of the scheduled dynamic backhaul resource.

As shown in FIG. 8, if the fixed backhaul resource (the control area of time slot 2) and the second scheduled dynamic backhaul resource (the data area of time slot 2) are located in the same time slot, the first indication information is also Information including the received beam of the third scheduled dynamic backhaul resource (data area of time slot 5 and data area of time slot 8).

Specifically, the DCI received in the time slot 5 and the time slot 8 received in the control area of the time slot 2 carry information indicating the reception beams in the

time slots

5 and 8 respectively.

Optionally, when the first indication information is at least one DCI, a part or all of the at least one DCI may carry a field to indicate a receiving beam used by the PDSCH of the third dynamic backhaul resource.

For example, as shown in FIG. 7, the first node receives the DCI of time slot 2 at time slot 0, and the TCI carried in the DCI is used to indicate the receiving beam used by the PDSCH of time slot 2. Generally, the PDSCH receiving The beam is indicated by the spatial QCL relationship. The spatial QCL relationship is indicated by a transmission configuration indication. In the existing protocol, the TCI contains 3 bits, that is, it can indicate 8 TCI states, and each state is associated with at least one reference signal for indicating the QCL relationship. More specifically, a TCI state may include a reference signal configured with Type-D QCL to indicate the receiving beam of the subsequent PDSCH, and the reference signal has a Type-D QCL relationship with the DMRS of the subsequent PDSCH, that is, the relay node can use the receiving This reference signal is used to receive the subsequent PDSCH. Among them, the Type-D QCL is a QCL about spatial receiving parameters.

It should be understood that the TCI in the current protocol can only indicate one receiving beam, that is, one TCI state contains only one reference signal to indicate the Type-D QCL relationship. It does not rule out the possibility that subsequent protocols support one TCI to indicate multiple receiving beams. The application does not limit the number of receive beams indicated by a TCI status.

As another example, the first node receives the DCI of

time slots

5 and 8 at time slot 0, which respectively carries TCI to indicate the receiving beams used by the PDSCH of

time slots

5 and 8.

In the embodiment of the present application, the first node may determine the control channel PDCCH of the fixed backhaul resource through the configuration of the control resource set (CORESET) and the search space set (search space set). Among them, the frequency domain subcarrier resources of the PDCCH, the number of time domain symbols, the DMRS configuration, the interleaving scheme, the precoding scheme, and the QCL relationship are determined by CORESET. After CORESET is configured, the relay node can obtain several control channel units ( control channel element (CCE); a search space set needs to be associated with a CORESET, and the search space set indicates the period of the PDCCH detection by the terminal or relay node, the offset within the period, and the time domain position of the CORESET start symbol, which needs to be detected Information such as the number of candidate PDCCHs (PDCCH) in each aggregation level, the CCE index occupied by each candidate PDCCH, and the DCI format to be detected. The aggregation level indicates the number of CCEs occupied by one candidate PDCCH. Possible values are 1, 2, 4, 8, 16, and so on.

In the embodiment of the present application, the PDSCH scheduling information of the scheduled dynamic backhaul resource may be sent in the PDCCH of the fixed backhaul resource, and the second scheduled dynamic backhaul resource in the scheduled dynamic backhaul resource ( The data area of time slot 2) and the fixed backhaul resource (the control area of time slot 2) can be located in the same time unit (time slot 2) or in adjacent time units.

Optionally, each of the scheduled dynamic backhaul resources corresponds to a control resource set, or each of the scheduled dynamic backhaul resources corresponds to one of the scheduled dynamic backhaul resources. Search space collection or a subset of search space collection.

Optionally, the method further includes:

Specifically, the correspondence between each scheduled dynamic backhaul resource and the control resource set or search space set includes, but is not limited to, the following ways:

method one

Multiple CORESET configurations, and CORESET is bound to dynamic backhaul resources. Different backhaul resources use DCI scheduling in different CORESETs. The first node can bind CORESET and dynamic backhaul resources in advance through RRC signaling (for example, bind the CORESET index p and the backhaul resource index). At the same time, the second node may determine the dynamic backhaul resource corresponding to the DCI according to the existing time domain resource indication field in the DCI.

Way two

The search space is bound to the postback resource. Different backhaul resources use DCI scheduling in different search space sets. The first node can bind search space sets and dynamic backhaul resources (binding search space setsets and backhaul resource indexes) through RRC signaling in advance. At the same time, the second node may also determine the dynamic backhaul resource corresponding to the DCI according to the existing time domain resource indication field in the DCI;

Way three

The candidate PDCCHs configured in the search space are bound to the backhaul resource. Different backhaul resources use different candidate PDCCHs in the search space to perform blind DCI scheduling. At the same time, the second node may determine the dynamic backhaul resource corresponding to the DCI according to the existing time domain resource indication field in the DCI.

Specifically, the first node indicates the PDCCH blind detection period and the number of candidate PDCCHs in one period for the second node through the configuration of the search space set, or the number of candidate PDCCHs that the second node needs to blindly detect in one search space set period, Each candidate PDCCH includes L CCEs, and the index numbers of the L CCEs are calculated by the protocol agreement rule through multiple parameters (such as the RNTI identifier of the second node, the total number of CCEs in CORESET, the total number of candidate PDCCHs, etc.), where: L represents an aggregation level, and a search space set can be configured with multiple aggregation levels.

In this embodiment of the present application, it may be considered to introduce the identifier of the backhaul resource as a new parameter in the CCE index rule of the candidate PDCCH, so that different backhaul resources correspond to different candidate PDCCHs. Specifically, one backhaul resource corresponds to several Part of the candidate PDCCH.

In the embodiments of the present application, a part of the several candidate PDCCHs is also referred to as a subset of a search space set. In some cases, different candidate PDCCHs have different CCE indexes, while in other cases, the CCE indexes of different candidate PDCCHs may collide, for example, one or more candidate PDCCHs scheduling slot 2 and slot 5 have The same CCE index. At this time, the second node cannot determine the scheduled backhaul resource through the CCE index of the PDCCH, and therefore needs to be further confirmed through a field in the DCI.

It should be understood that, in the embodiments of the present application, the subset of the search space set includes the CCE indexes of one or more candidate PDCCHs of each scheduled dynamic backhaul resource.

In this embodiment, each scheduling DCI may include an indication information indicating the total number of scheduled backhaul resources in the backhaul resource group. For example, in the above example, when

time slots

2 and 5 are scheduled When the indication information indicates that the number of scheduled backhaul resources is 2, the above indication information can reduce the number of blind detections of DCI in some cases, and can also ensure that no error occurs in HARQ feedback.

In the above embodiment, the scheduled DCIs of the dynamic backhaul resources scheduled in the backhaul resource group are located in the fixed backhaul time slot. This design is easy to implement, but the second node needs to perform a large number of blind DCI on the fixed backhaul resources. The detection may increase the complexity of the second node, and the scheduling parameter configuration that is too early may be detrimental to the flexibility of scheduling. An improved resource scheduling method 500 is proposed below.

FIG. 9 shows a schematic flowchart of a resource scheduling method 500 according to an embodiment of the present application. As shown in FIG. 9, the method 500 includes:

S510: The first node sends resource configuration information to the second node, and the second node receives the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set Including one fixed backhaul resource and multiple dynamic backhaul resources;

S520. In the fixed backhaul resource, the first node sends first instruction information to the second node, the second node receives the first instruction information sent by the first node, and the first instruction information is used to indicate the Scheduled dynamic backhaul resources among multiple backhaul resources;

S530. On the first scheduled dynamic backhaul resource, receive first downlink control information DCI sent by the first node, where the first DCI is used to indicate a downlink scheduling parameter of the first scheduled dynamic backhaul resource. , The scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

S540. The first node sends a signal to the second node on the first scheduled dynamic backhaul resource, and the second node receives a signal sent by the first node on the first scheduled dynamic backhaul resource. .

Specifically, in a fixed backhaul resource, the first indication information received by the second node is only used to indicate whether the multiple dynamic backhaul resources are actually scheduled, and the actual PDSCH scheduling DCI is performed during the corresponding dynamic backhaul. Slot is sent.

It should be understood that the first scheduled dynamic backhaul resource represents a dynamic backhaul resource in which the PDCCH and the PDSCH are multiplexed at the same time unit, and the second node determines whether to detect the PDCCH of the first scheduled dynamic resource through the first indication information. .

For example, FIG. 10 shows a schematic diagram of scheduling backhaul resources in advance. The first node configures the second node with fixed backhaul resources (control area of time slot 0) and dynamic backhaul resources (

time slot

2, 5 and 8 data area), the second node receives the first indication information in the control area of time slot 0, and the first indication information indicates whether the data areas of

time slots

2, 5 and 8 are actually scheduled, if the first An indication information indicates that the data areas of

time slots

2, 5, and 8 are all backhaul resources to be scheduled, then the second node receives the scheduling DCI of PDSCH of time slot 2 in the control area of time slot 2, and in time slot 5 The control region of the PDSCH receives the scheduling DCI of the PDSCH of the time slot 5, and receives the scheduling DCI of the PDSCH of the time slot 8 in the control area of the time slot 8.

Optionally, the first indication information may use a bitmap to indicate whether subsequent backhaul resources are scheduled. For example, when

time slots

2, 5, and 8 are dynamic backhaul time slots, the first indication information uses three bits to indicate subsequent Which time slots are scheduled, for example [1 0 0] indicates that only time slot 2 is scheduled, [1 1 0] indicates that

time slots

2 and 5 are scheduled, and so on.

Optionally, the method 500 further includes:

For example, the first indication information may carry a TCI to indicate a receiving beam of at least a part of the scheduled dynamic backhaul resources among the scheduled dynamic backhaul resources, if the first indication information indicates the data areas of

time slots

2, 5, and 8 Are all backhaul resources to be scheduled, then a 9-bit TCI field may be added to the first indication information to indicate the information of the reception beams of

timeslots

2, 5, and 8 and may also be included in the first indication information A 6-bit TCI field is added to indicate the information of the received beams in

time slots

5 and 8.

In some possible implementation manners, the first indication information may both indicate the scheduled dynamic backhaul resource among the multiple dynamic backhaul resources, and may also indicate at least a part of the scheduled dynamic backhaul resources. Receive beam information.

Optionally, the first indication information further includes downlink scheduling parameters of the second scheduled dynamic backhaul resource. The scheduled dynamic backhaul resource includes the second scheduled dynamic backhaul resource.

Specifically, in order to use the fixed backhaul resource more efficiently, the first indication information may further include PDSCH scheduling DCI of the second scheduled dynamic backhaul resource. Alternatively, it can also be expressed as: sending a scheduled DCI of a PDSCH of a scheduled dynamic backhaul resource in the control area of the fixed backhaul resource, and adding a field (or reusing an existing field) in this DCI to indicate the remaining dynamic backhaul Whether the resource is scheduled. In this case, the DCI of the fixed backhaul resource and the resources occupied by the scheduled PDSCH are generally continuous, or occupy the same time unit.

Optionally, a field may be added to the DCI to indicate information of a received beam of a third scheduled dynamic backhaul resource.

It should be understood that if the scheduled dynamic backhaul resource includes a second scheduled dynamic backhaul resource, the second scheduled dynamic backhaul resource is located at the same time unit or adjacent time as the fixed backhaul resource. The unit's dynamic backhaul resource, the first indication information further includes information for indicating a receiving beam of a third scheduled dynamic backhaul resource, and the third scheduled dynamic backhaul resource is the scheduled dynamic backhaul resource. At least a part of the dynamic backhaul resources other than the second scheduled dynamic backhaul resource.

The following description uses a fixed backhaul resource and the second scheduled dynamic backhaul resource to occupy the same time unit as an example for description.

FIG. 11 shows another schematic diagram of scheduling backhaul resources in advance. As shown in FIG. 11, the first node configures a second backhaul resource with a fixed backhaul resource (the control area of time slot 2) and multiple dynamics. Backhaul resources (data areas of

time slots

2, 5, and 8). The scheduling DCI received by the second node in the control area of time slot 2 schedules PDSCH for time slot 2 and indicates whether the

dynamic backhaul resources

5 and 8 are Scheduled, or in other words, whether the relay node needs to detect the scheduled DCI.

Further optionally, the DCI of the fixed backhaul resource may further indicate information (or a spatial QCL relationship) of a received beam of at least a part of the scheduled dynamic backhaul resources.

It should be understood that the scheduling DCI received in the control area of the time slot 2 may indicate information of the reception beams of the

time slots

5 and 8, and the reception beam of the time slot 2 may be a default reception beam or a reception beam configured in advance.

In order to reduce the complexity, the PDCCH and PDSCH of the dynamic return time slot (time slots 5 and 8) shown in FIG. 11 may have the same QCL relationship, or the second node may receive the same scheduled beam using the same receive beam. Dynamically return time slot PDCCH and PDSCH.

The process of scheduling the backhaul resource in advance in FIG. 11 is described in detail below.

(1) Configuration of backhaul resource collection

Specifically, the configuration of the backhaul resource set is the same as that in method 400. For brevity, details are not described herein again.

(2) The first node configures at least one CORESET for the second node for transmitting a scheduled DCI of a fixed backhaul slot.

Specifically, in order to distinguish it from the CORESET in the dynamic backhaul resource configuration below, the CORESET in the fixed backhaul resource configuration is denoted as CORESET p1, and CORESET p1 is consistent with the CORESET of the existing protocol.

(3) The first node configures a search space for the second node.

Specifically, the CORESET associated with the search space is the above-mentioned CORESET p1, and the period and shift of the search space are configured so that the second node always monitors the DCI at a fixed backhaul resource. A simple search space configuration method is to configure a search space set1, and the period (time slot level) of the search space set1 is consistent with the offset and fixed backhaul resources. The symbol position of the search space set1 can be located at the head of the time slot, or it can be located at other positions. It should be understood that the first node can also use the remaining CORESET and search space configuration methods to make the second node always receive the PDCCH or monitor the DCI on a fixed backhaul resource.

The above DCI is used to indicate the downlink scheduling parameters of the PDSCH of the second scheduled dynamic backhaul resource (for example, the data area of time slot 2 in FIG. 11), and carries a field to indicate multiple subsequent backhaul resources (for example, in FIG. 11). Whether time slots 5 and 8) will be scheduled. For example, consider the situation shown in Figure 11. The DCI at time slot 2 can indicate whether

time slots

5 and 8 will be scheduled through two bits, such as [1 ] Indicates that both time slots are scheduled, [1 0] indicates that time slot 5 is scheduled, time slot 8 is not scheduled, and so on.

The above DCI may also carry a field indicating a beam (or spatial QCL) relationship adopted by the PDSCH of at least a part of the dynamically scheduled backhaul resources (for example,

timeslots

5 and 8 in FIG. 11). In general, the spatial QCL relationship of PDSCH is indicated by TCI. In the existing protocol, TCI contains 3 bits, that is, it can indicate 8 TCI states, and each state is associated with at least one reference signal, which is used to indicate the QCL relationship. More specifically, the TCI uses a reference signal configured with a Type-D QCL to indicate a receiving beam of a subsequent PDSCH. If it is necessary to indicate the beams of multiple subsequent return time slots through TCI, a corresponding number of TCI fields are needed. For example, when two scheduled dynamic return time slots need to be indicated, a 6-bit TCI field is required.

It should be understood that if the above-mentioned DCI needs to indicate whether N dynamic backhaul resources are scheduled, N bits are required, and if it is required to indicate the TCI status of N dynamic backhaul resources, 3N bits are required, and a total of 4N bits are required. The two indications can be combined to save overhead. For example, one state of TCI is used to indicate that the corresponding dynamic backhaul resource is not scheduled. For example, the first seven states of TCI are configured as ordinary QCL indications, and the last state is available. To indicate that the corresponding dynamic backhaul resource is not scheduled. This saves N-bit DCI overhead. When the COCI where the DCI is located is not configured with the TCI of the PDSCH, or when the DCI does not contain the TCI field, the DCI only uses N bits to indicate whether a dynamic backhaul slot exists.

In a possible implementation, in order to avoid an excessive DCI length, there is a maximum limit on the number of dynamic backhaul resources in the backhaul resource group. For example, a set of backhaul resources can be defined to include a maximum of three dynamic backhaul resources. The number of added indication bits is limited. Or, a set of backhaul resources includes only a fixed dynamic backhaul resource and a dynamic backhaul slot. In this way, the first node can use the existing 3-bit TCI information to indicate the dynamic backhaul slot. Without adding extra bits.

(4) In the scheduled dynamic backhaul resource, the first node configures CORESET for the second node to transmit the scheduled DCI of the scheduled dynamic backhaul resource.

The DCI received on the fixed backhaul resource indicates whether the dynamic backhaul resource is scheduled (if it is scheduled, the DCI may also indicate the reception beam of the scheduled backhaul resource), and it also implies that the dynamic PDSCH corresponds to Whether the PDCCH exists and the corresponding beam (TCI). A dedicated CORESET can be configured for the scheduled dynamic return time slot. It is denoted as CORESET p2. The difference between CORESET p2 and ordinary CORESET is that the reference signal with QCL relationship to ordinary CORESET is configured by RRC signaling, and CORESET p2 The QCL reference signal may be in a default state during RRC configuration or may be modified. After the DCI received by the fixed backhaul resource indicates the TCI status of the corresponding PDSCH, CORESET p2 uses the same TCI status. Alternatively, the protocol directly defines that the foregoing TCI indicates a common TCI of CORESET p2 and PDSCH. In the protocol, CORESET p2 can be configured to different scheduled dynamic backhaul resources through the configuration of search space, but if the dynamic backhaul resource is not indicated, the second node can ignore the detection. It should be understood that the first node may also use the remaining CORESET and search space configuration methods to enable the second node to receive the PDCCH or monitor the DCI on the scheduled dynamic backhaul resource according to the first indication information.

In a possible implementation manner, the DCI received by the fixed backhaul resource only indicates whether the dynamic backhaul resource is scheduled, but does not include the TCI indication or the reception beam indication. At this time, CORESET p2 may be configured with QCL Relationship, and the corresponding dynamic return resource uses the same QCL relationship as CORESET p2, or the same TCI state, or the same receive beam.

In a possible implementation manner, if a subsequent dynamic backhaul resource (for example,

time slot

5 or 8 in FIG. 11) is instructed to communicate with the second dynamic backhaul resource (for example, time slot in FIG. 11) 2) The same receiving beam (or spatial QCL relationship) can reuse the scheduling DCI of the fixed backhaul resource. Specifically, a DCI sent in a fixed backhaul slot may schedule multiple dynamic backhaul slots, and the specifically scheduled dynamic backhaul slot may be indicated by a field in the DCI.

FIG. 12 is a schematic flowchart of a resource scheduling method 600 according to an embodiment of the present application. As shown in FIG. 12, the method 600 includes:

S610: The first node sends resource configuration information to the second node, and the second node receives the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain position of the backhaul resource set, and the backhaul resource set Including one fixed backhaul resource and multiple dynamic backhaul resources;

S620. At the fixed backhaul resource, the first node sends a second DCI to the second node, the second node receives the second DCI sent by the first node, and the second DCI is used to indicate a fourth scheduled And the second DCI is used to indicate that the fifth scheduled dynamic backhaul resource is scheduled, the multiple dynamic backhaul resources include the fourth scheduled dynamic backhaul resource and the first Five scheduled dynamic backhaul resources;

S630. The first node sends a signal to the second node on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource. The second node sends the signal on the first DCI based on the first DCI. The fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource receive signals sent by the first node.

Specifically, the method 600 provides a level-by-level dynamic backhaul resource indication. The benefit brought by the level-by-level dynamic backhaul resource indication is to further save the DCI indication overhead, so that each DCI only needs to use 3 bits. TCI (or a 1-bit dynamic return resource indication, or a 1-bit dynamic resource indication and a 3-bit TCI) to indicate the latter dynamic return resource, which is consistent with the TCI overhead of ordinary DCI.

Optionally, the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units .

Optionally, the method 600 further includes:

At the fixed backhaul resource, information about a receiving beam of the fifth scheduled dynamic backhaul resource sent by the first node is received.

It will be described below that the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in the same time unit.

FIG. 13 shows another schematic diagram of scheduling backhaul resources in advance. As shown in FIG. 13, the first node configures a second backhaul resource with a fixed backhaul resource (control area of time slot 2) and multiple dynamics. Backhaul resources (data areas of

time slots

2, 5 and 8), the first DCI received by the second node in the control area of time slot 2 schedules the PDSCH of time slot 2, or the first DCI indicates when Slot 2 downlink scheduling parameters.

Optionally, the first DCI further carries 1 bit to indicate that time slot 5 is scheduled.

Further optionally, the first DCI also carries 3 bits of information indicating a received beam in time slot 5.

Optionally, the method 600 further includes:

At the fifth scheduled dynamic backhaul resource, a third DCI sent by the first node is received, the third DCI is used to indicate downlink scheduling parameters of the fifth scheduled dynamic backhaul resource, and the third DCI is used for In order to indicate that the sixth scheduled dynamic backhaul resource is scheduled, the plurality of dynamic backhaul resources includes the sixth scheduled dynamic backhaul resource.

Optionally, the method 600 further includes:

At the fifth scheduled dynamic backhaul resource, information about a receiving beam of the sixth scheduled dynamic backhaul resource sent by the first node is received.

As shown in FIG. 13, if the first DCI indicates that time slot 5 is scheduled, the second node receives the second DCI sent by the first node in time slot 5, and the second DCI indicates the downlink of time slot 5 Scheduling parameters.

Optionally, the second DCI may further carry a field to indicate that slot 8 is scheduled.

Further optionally, the second DCI also carries a field indicating a received beam of the time slot 8.

The configuration and instructions of the downlink backhaul resource are described in detail above in connection with the method 400 to the method 600. The embodiment of the present application may also extend the method to the uplink backhaul resource. Like the downlink backhaul resource, the first node cannot dynamically schedule the uplink backhaul resource arbitrarily to avoid conflicts with the access link. Therefore, the first node still needs to configure several optional uplink backhaul resources for the relay node.

FIG. 14 shows a schematic diagram of scheduling uplink backhaul resources and downlink backhaul resources in advance. As shown in FIG. 14, the first node configures the second node with a fixed backhaul resource (a control area of time slot 0) and a plurality of dynamic downlink backhaul resources (a data area of

time slots

0, 2 and 4). At the same time, multiple optional uplink backhaul resources (

slots

6, 7, and 8) are configured. In combination with the previous embodiment, the control area of time slot 0 is a fixed downlink backhaul resource, and

time slots

0, 2 and 4 The data area is dynamic downlink backhaul resources, and

time slots

6, 7, and 8 are optional uplink backhaul time slots.

The above embodiments only consider the configuration of downlink backhaul resources, but in practice, the first node also needs to configure the uplink backhaul resources of the second node. The uplink backhaul resources can be configured independently or simultaneously with the downlink backhaul resources.

For optional uplink backhaul resource configuration, there are the following options:

(1) All optional uplink backhaul resources are configured as dynamic backhaul resources and scheduled by DCI. As shown in Figure 14,

time slots

6, 7, and 8 are scheduled by the previous downlink backhaul resources, and downlink backhaul The HARQ feedback information of the resource is configured by the downlink DCI to any one of the time slots. In this example, uplink backhaul resources are configured independently.

(2) At least one fixed uplink backhaul resource is bound to the downlink fixed backhaul resource, the second node detects the DCI of the fixed uplink backhaul resource at the downlink fixed backhaul resource, and at least part of the downlink dynamic backhaul resource The corresponding HARQ feedback will be located in this fixed uplink backhaul resource. For example, in Figure 14, slot 6 is set to a fixed uplink backhaul slot. Its scheduling information is generally located in slot 0, and the PDSCH HARQ feedback in slot 0 The information will be in slot 6. At the same time, the remaining periodic or semi-persistent signals sent by the second node may also be located in this uplink fixed return slot, for example, periodic or semi-persistent SRS, PUCCH or PUSCH used for periodic or semi-persistent CSI reporting.

In a possible implementation manner, the HARQ feedback corresponding to the remaining dynamic backhaul resources will also be located in this uplink fixed backhaul time slot. For example, in FIG. 14, the HARQ feedback information of

time slots

0, 2, and 4 are located in Time slot 6. If the first node is configured with multiple sets of downlink backhaul resources for the second node, the fixed downlink backhaul resources in each group of downlink backhaul resources can be bound to one uplink fixed backhaul resource.

The uplink fixed backhaul resources can be directly configured or indirectly obtained from the configuration positions of periodic signals (such as PUCCH, SRS, etc.). When the downlink backhaul resource (or the second dynamic backhaul resource) is not transmitting data, the uplink fixed backhaul resource may not perform uplink backhaul link transmission. For example, when the PUCCH of the uplink fixed backhaul resource is only used to feed back the HARQ-ACK information of the PDSCH transmitted by the downlink backhaul resource (or the above-mentioned second dynamic backhaul resource), and the second node does not detect the uplink fixed backhaul resource, When DCI is scheduled for PUSCH.

(3) On the basis of (2), the remaining uplink backhaul resources can be configured as dynamic backhaul resources.

In a possible implementation, each dynamic uplink backhaul resource is also bound to a dynamic downlink backhaul resource, and this dynamic uplink backhaul slot is scheduled in the bound dynamic downlink backhaul resource and may be transmitted. HARQ information corresponding to a dynamic downlink backhaul slot.

(2) and (3) are joint configurations of uplink backhaul resources and downlink backhaul resources, and a binding or association relationship between the two needs to be configured.

For example, in FIG. 14, the fixed uplink return slot 6 corresponds to the fixed downlink return slot 0, and the dynamic

downlink return slots

2 and 4 correspond to the dynamic

uplink return slots

7 and 8, respectively. The scheduling DCI of 7 is in slot 2 and the scheduling information of slot 8 is in slot 4. Therefore, if slot 2 is not scheduled, slot 7 will not be scheduled, and slot 8 is the same. In this case, the HARQ information in slot 2 may be fed back in slot 7, or it may still be fed back in slot 6.

In another possible implementation, the first node configures a dynamic flexible time slot (that is, no uplink and downlink time slot is specified) to the second node, and binds the flexible time slot with a downlink backhaul time slot. The node determines whether the dynamic flexible time slot is scheduled, and the transmission direction (uplink or downlink) and transmission parameters by detecting the DCI of the downlink time slot.

In the foregoing embodiment shown in FIG. 6 or FIG. 9 or FIG. 12, in steps S410, S510, and S610, the first node sends resource configuration information to the second node, and the resource configuration information may configure an access link or a backhaul chain. Resources.

If access resources are configured, the access resources may also include unavailable resources, that is, the resources of the access link include: fixed access resources, dynamic access resources, and unavailable access resources (not available access resources).

If the resources of the backhaul link are configured, as described above, the resource configuration information includes: fixed backhaul resources and dynamic backhaul resources. No access link transmission is performed on the unavailable access resources. It should be understood that the dynamic access resource may be configured as uplink transmission or downlink transmission on the access link; similarly, the dynamic backhaul resource may also be configured as uplink transmission or downlink transmission on the backhaul link.

If the access resource is configured, the second node receives the resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes at least one fixed access resource and / or Multiple dynamic access resources; the second node receives first instruction information sent by the first node, and the first instruction information is used to indicate the dynamic access resources of the multiple dynamic access resources scheduled for the backhaul link; information. Further, the second node receives a signal sent by the first node on a scheduled dynamic access resource for a backhaul link. The second node determines the dynamic access resource for the access link according to the scheduled information of the dynamic access resource for the backhaul link.

The meaning of the information about the scheduled dynamic access resources for the backhaul link includes that some or all of the resources in the dynamic access resources are assigned in the first indication information for transmission of the backhaul link.

The unavailable access resources in the access resource set can be used for fixed backhaul resources, that is, when the resource configuration information is configured for the access resource set, the unavailable access resources in the resource configuration information are used for the backhaul chain. Fixed backhaul resources. It should be understood that the unavailable access resources configured in the access resource set are not necessarily limited to fixed backhaul resources. In turn, the fixed backhaul resource is an unavailable access resource on the access link.

It should be understood that the granularity of the configuration of access resources may be one time slot, multiple timeslots, or multiple symbols, etc. This application mainly describes the configuration granularity of time slots, but does not exclude the remaining configuration granularity .

The above resource configuration information may be configured by a higher-level node through high-level signaling. The upper-level node includes a control node. The control node is usually a host base station, and may specifically be a control unit (CU) of the host base station. High-level signaling includes RRC or F1AP (F1AP) signaling. F1AP may also be an enhanced or modified version of F1AP. Specifically, if the resource for the backhaul link is configured, it can be configured through RRC signaling, and if the resource for the access link is configured, it is configured through F1AP.

It should be understood that the foregoing first node may be an upper node of the second node, or may be a host base station. The second received resource configuration information may come from a first node, and the second received first indication information comes from another first node. That is, the resource configuration information and the first indication information received by the second node come from different first nodes. This application is only for the convenience of description, and the name of the first node is adopted uniformly. It should be understood that the first node may forward the resource configuration information from the host base station to the second node.

Therefore, the first node sending the resource configuration information to the second node includes: the first node generates the resource configuration information and sends it to the second node, or the first node forwards the resource configuration information from the host base station. The following are the same and will not be described again.

Further, the second node receives the resource configuration information sent by the first node, may receive the resource configuration information of the access link sent by the first node, and may also receive the resource configuration information of the return link sent by the first node. The resource configuration information is used to indicate the time domain location of the backhaul resource set. The backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources.

The resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the return resource set are transmitted through different signaling or interfaces. For example, the resource configuration information used to indicate the access to the resource set is transmitted through F1AP signaling or the interface, and the resource configuration information used to indicate the returned resource set is transmitted through the RRC signaling.

Specifically, resources for configuring a backhaul link or an access link can be configured using a method based on a bitmap or a character string. The bitmap includes an indicator of unavailable access resources and an indicator bit of fixed / dynamic access resources. Unavailable access The priority of the resource indication is higher than that of the fixed / dynamic access resource indication.

The specific method is as follows:

Method 1: Configuration based on two-level bitmap

When a two-level bitmap is used to configure the resources of the access link, the first level bitmap is used to indicate unavailable access resources, and the second level is used to indicate fixed / dynamic access resources, and the unavailable access resources are indicated. Has a higher priority than the fixed / dynamic access resource indication, that is, the access resource that is indicated as unavailable, regardless of the fixed / dynamic resource indication, it is an unavailable access resource.

It should be understood that the available access resources of the access link can also be directly configured as the available resources of the access link, and the unconfigured resources cannot be used for access link transmission. This application takes the unavailable access resource as an example, but it does not exclude the configuration of the available resources of the access link. I will not repeat them below.

The resource configuration of the access link is as follows:

Access resource configuration:

In addition, since the relay node may have multiple cells / sectors / antenna panels, different cell / sector / antenna panels can be configured with different access resource types. Therefore, there may be multiple access resource configurations at the same time, and the access resource number can be associated with the cell / sector / antenna panel.

In the above access resource configuration, the unavailable access resource indication and the fixed / dynamic access resource indication may be represented by a bitmap.

FIG. 19 is an example of using the bitmap to indicate access link resource allocation in this embodiment. In FIG. 19, the indicated resource length is 10 time slots. In the unavailable backhaul resource indication, bit 1 represents the unavailable resource. It should be understood that FIG. 19 only uses 10 time slots as an example. In an actual system, there may be 20 time slots or any other number of time slots, which is not limited in this application.

Similarly, in the fixed / dynamic backhaul resource indication, bit 1 represents the fixed access resource and bit 0 represents the dynamic access resource.

In this example,

bits

1, 2, and 3 in the bitmap indicated by the unavailable access resource are 1, indicating that

timeslots

1, 2, and 3 are unavailable access timeslots.

Bits

0, 4, and 5 in the bitmap of the fixed / dynamic access resource indication are 1, indicating that

timeslots

0, 4, and 5 are fixed access timeslots. In the remaining timeslots, since

timeslots

1, 2, and 3 are Unavailable access time slots, then

time slots

0,6,7,8,9 are dynamic access time slots, as shown in the access resource type in Figure 19.

It should be understood that this application does not force 0 or 1 in a bitmap to a certain type, that is, in the unavailable resource indication, 0 may be used to indicate unavailable resources, and 1 may also be used to indicate unavailable resources; in a fixed / In the dynamic access resource indication, 0 can be used to indicate fixed access resources, 1 can be used to indicate dynamic access resources, and vice versa.

Method 2: String-based configuration

In another implementation of the above bitmap, the type of access resource can be directly indicated by a string, and the specific configuration can be as follows:

Access resource configuration:

FIG. 20 is an example. In FIG. 20, the indicated resource length is 10 timeslot resources, and the type of each timeslot resource is indicated by different characters. It should be understood that the application does not limit the length of the indication resource, and 10 time slots are only an example, and may be 20 time slots or any other number of time slots. Table 1 shows the correspondence between a character and an access resource type:

Table 1 Mapping between characters and access resource types

UU	不可用接入资源Unavailable access resources
HH	固定接入资源Fixed access resource
SS	动态接入资源Dynamic access to resources

It should be understood that Table 1 is only an example, and specific characters are not limited in this application. For example, the unavailable access resource U may also be represented by N. In a possible implementation, the configuration based on the two-level bitmap in the first manner may also be represented by a bitmap, as shown in FIG. 21. Specifically, a bitmap may be set in groups of two bits each corresponding to each time slot. The first bit indicates available or unavailable access resources, and the second bit indicates fixed / dynamic access resources. You can use 0 to indicate fixed access resources, 1 to indicate dynamic access resources, and vice versa. In FIG. 21, ten time slots are still taken as an example. When the number of time slots is not limited in practice. The first bit of each bit group is 0 to indicate that the resource is available for access to the link, and bit 1 represents the unavailable resource, and vice versa. The second bit of each bit group is 0 for dynamic access to resources, 1 for fixed resources, and vice versa.

As mentioned above, the first node configures the access resource set for the second node, and the second node infers the return resource set by accessing the resource set. Specifically, the resource configuration of the backhaul link can be obtained according to the correspondence between the access resource type and the backhaul resource type, and the correspondence between the access resource type and the backhaul resource type can be shown in Table 2 below.

Table 2 Correspondence between access resource types and return resource types

不可用接入资源Unavailable access resources	固定回传资源Fixed postback resources
固定接入资源Fixed access resource	不可用回传资源Unavailable postback resources
动态接入资源Dynamic access to resources	动态回传资源Dynamic postback resources

Under the above corresponding rule, after the first node obtains the resource configuration of the access link, it can obtain the corresponding resource configuration of the backhaul link.

It should be understood that the above is only an example. In a possible implementation, the resource configuration information may further include unavailable resource configurations and / or fixed backhaul resources of the backhaul link, without adopting the corresponding relationship in Table 2 above. The fixed backhaul resource of the backhaul link is an unavailable access resource on the access link. Correspondingly, the fixed access resources of the access link are unavailable backhaul resources on the backhaul link. It should be understood that the unavailable access resources of the access link may not all be the fixed backhaul resources of the backhaul link. Depending on the protocol definition, this application does not make any restrictions. Correspondingly, the unavailable resources of the backhaul link may not all be fixed access resources of the access link.

In another possible implementation, the control node, such as the host base station, configures the access link resources through F1AP. The access link resources include unavailable access resources, fixed access resources, and dynamic access resources. The resources of the backhaul link are configured through RRC signaling. The resources of the backhaul link include unavailable backhaul resources, fixed backhaul resources, and dynamic backhaul resources. It should be understood that F1AP may also be an enhanced or modified version of F1AP, which is not limited in this application.

It should be understood that the unavailable backhaul resources of the backhaul link may not exist, that is, the resource configuration of the backhaul link includes only fixed backhaul resources and dynamic backhaul resources. Whether the dynamic backhaul resource is used for uplink transmission or downlink transmission of the backhaul link can be implemented by the foregoing scheduling method, and details are not described again.

The foregoing embodiment implements dynamic backhaul resource allocation by scheduling in advance. The advance scheduling may be the scheduling of multiple dynamic backhaul resources in a fixed transmission slot or subframe, as shown in the embodiment described in FIG. 7, FIG. 8, FIG. 10, or FIG. 11, and described in FIG. 13 or FIG. In the embodiment, the advance scheduling is not limited to a fixed time slot.

Therefore, the scheduling method of the foregoing embodiment includes: the second node receives the resource configuration information sent by the first node, the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and And / or multiple dynamic backhaul resources; the second node receives first indication information sent by the first node, and the first instruction information is used to indicate information about the scheduled dynamic backhaul resources among the multiple dynamic backhaul resources. Further, the second node receives a signal sent by the first node on the scheduled dynamic backhaul resource.

Wherein, the second node receiving the first indication information sent by the first node is not limited to a fixed backhaul slot.

Similarly, since the resource configuration information configured by the first node for the second node may also be an access resource set, the above method also includes: the second node receives the resource configuration information sent by the first node, and the resource configuration information is used to indicate The time domain location of the access resource set, where the access resource set includes at least one fixed access resource and / or multiple dynamic access resources; the second node receives the first indication information sent by the first node, and the first indication information is used for Information indicating scheduled dynamic access resources among multiple dynamic access resources. Further, the second node receives a signal sent by the first node on a scheduled dynamic access resource for the backhaul link.

The second node receives the first indication information on a downlink transmission slot or subframe of the backhaul link. The downlink transmission slot or subframe includes: fixed backhaul resources and scheduled dynamic access for the backhaul link. The resources are configured as time slots or subframes for downlink transmission. That is, the first indication information may be transmitted on any downlink time slot or subframe that has been configured as a backhaul link, and the downlink transmission time slot or subframe may not be limited to a fixed backhaul time slot or may be configured as Downlink transmission is performed on dynamic backhaul resources.

It should be understood that the first node may configure an access resource set for the second node, and may also configure a return resource set for the second node, and may also configure both the access resource set and the second node for the second node. Pass the resource collection. If the first node configures an access resource set for the second node, the dynamic access resources in the access resource set may be dynamically configured between the access link and the backhaul link, that is, the first instruction information Configure the dynamic resources of the backhaul link so that the dynamic resources that can be used for the access link can be determined based on the dynamic access resources in the access resource set.

Correspondingly, if the first node is configured with a backhaul resource set for the second node, can the dynamic backhaul resources in the backhaul resource set be dynamically configured between the access link and the backhaul link, or by the first indication? Information to configure the dynamic resources of the backhaul link, so that the dynamic resources that can be used to access the link can be determined based on the dynamic backhaul resources in the set of backhaul resources.

If the first node separately configures the access resource set and the backhaul resource set for the second node, dynamic resources may be configured only in the access resource set or the backhaul resource set. Dynamic resources can also be configured in both the access resource set and the backhaul resource set, which is not limited in this application.

In a possible implementation, based on the foregoing embodiment shown in FIG. 6 or FIG. 9 or FIG. 12, after the resource configuration information is completed in steps S410, S510, and S610, the first node may also be activated by using the first instruction information. , Increase, decrease, replace, or deactivate dynamic backhaul resources.

FIG. 22 is a schematic diagram of activating or deactivating a backhaul link dynamic resource. Assume that at time slot 0, the first node sends resource configuration information to the second node, and the second node receives the resource configuration information sent by the first node. The resource configuration information is used to indicate the time domain position of the returned resource set. The resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources. As mentioned above, the resource configuration information may be configured in a bitmap manner. The configuration may be a resource of an access link or a resource of a backhaul link, which is not limited in this application.

In FIG. 22, it is assumed that

time slots

0 and 1 are fixed backhaul resources of the backhaul link. The

time slots

2, 5, 6, and 8 are dynamic backhaul resources, which are indicated by padding in the figure, that is, the dynamic backhaul resources can be used for the access link and also for the backhaul link. At time slot 1, the first node sends an instruction to activate the dynamic backhaul resource to the second node. Activation of dynamic backhaul resources can be achieved through PDCCH scheduling or MAC CE in the MAC layer. The specific signaling is not restricted in this application.

If it is implemented through the PDCCH, specifically, the activation of dynamic backhaul resources of the backhaul link can be achieved through a specific scrambling code. For example, a flexible scheduling wireless network temporary identity (FS-RNTI) can be defined. ), It should be understood that the FS-RNTI here may also be another name, which is not limited in this application. For example, the FS-RNTI may be a 16-bit identifier used to scramble a cyclic redundancy check (Cyclic Redundancy Check, CRC) of the PDCCH. Through FS-RNTI, it can be identified that the PDCCH is used for the activation, addition, reduction, replacement, or deactivation of the dynamic backhaul resource of the backhaul link.

In the FS-RNTI scrambling code or MAC CE, it indicates which dynamic backhaul resources will be truly used for transmission of the backhaul link, and the dynamic backhaul resources that are not indicated or configured can be used for transmission of the access link . For example, Figure 22 indicates that

time slots

2 and 8 are used for transmission of the backhaul link, and

time slots

4 and 6 are not configured for transmission of the backhaul link, so

time slots

4 and 6 can be used for access Transmission of the link.

Similar to the previous bitmap configuration method, a bitmap may be used to indicate the resources of the backhaul link in the indication of activating the dynamic backhaul resources. When the PDCCH is used for activation, because a specific scrambling code is used, the content of the PDCCH can be redefined. For example, 1 bit may be used to indicate whether to activate or deactivate the dynamic backhaul resource. Of course, 2 bits can also be used to indicate dynamic backhaul resources that activate, increase, decrease, or deactivate the backhaul link. The remaining bits can be used for bitmap resource indication of the return link. For example, if time slot 2 and time slot 8 are configured as backhaul link resources, the value of the bitmap may be "0010000010". It should be understood that the bitmap here is only used for the indication of dynamic backhaul resources, and only takes 10 time slots as an example, and it may also be another number of time slots, which is not limited in this application.

In a possible implementation, in order to compress the length of the bitmap of the PDCCH, only the dynamic backhaul resource slot may be indicated. Because there is resource configuration information before, for example,

timeslots

2, 4, 6, and 8 are configured as dynamic access resources or dynamic backhaul resources in the resource configuration information, then 4 bits can be used to indicate the dynamic backhaul resources in order. Configuration. For example, if time slot 2 and time slot 8 are configured as the transmission of the backhaul link, 4 bits “1001” are used to indicate the configuration of 4 dynamic backhaul resources.

Further, whether the dynamic backhaul resource for the backhaul link is used for downlink transmission or uplink transmission can be configured. Therefore, another bitmap needs to be further configured to indicate that the configured dynamic backhaul resource for the backhaul link is uplink. Still down. For example, assuming that time slot 2 is used for uplink and time slot 8 is used for downlink, the corresponding bitmap can be "0000000010", where the second bit is 0 for uplink, and the 8th bit is 1 for downlink and vice versa. Further, it can also be represented by two bits, for example, "01" because only two dynamic backhaul resources are configured for transmission on the backhaul link.

The above configuration method using bitmap is applicable to a method for activating dynamic backhaul resources based on PDCCH or MAC CE. The above only takes time slots as an example, but this application is not limited, and it may also be configured with granularity of subframes or symbols or frames.

Once the activation of the dynamic backhaul resource of the backhaul link is completed, there is no difference between the downlink time slot of the activated dynamic backhaul resource for the backhaul link and the normal time slot, so normal scheduling and operations can be performed . Therefore, further reconfiguration of backhaul link resources can be performed at each activated dynamic backhaul resource slot and / or fixed backhaul resource slot.

Reconfiguration includes adding dynamic backhaul resources for new backhaul links, reducing dynamic backhaul resources for backhaul links, or replacing dynamic backhaul resources for backhaul links. Wherein, replacing the dynamic backhaul resource of the backhaul link includes replacing part of the dynamic backhaul resource configured for the backhaul link with another part of the dynamic backhaul resource. The specific method is similar to the activation method described above, and a bitmap-based method is used, and details are not described again. If it is a dynamic backhaul resource that replaces the backhaul link, it can be implemented by two bitmaps, one is to indicate which dynamic backhaul resources are replaced, and the other is to indicate a new dynamic backhaul resource for the backhaul link.

It should be understood that the signaling for activating, reconfiguring or deactivating the dynamic backhaul resource of the backhaul link includes an operation indication field, which is used to indicate that the signaling is used for activation, addition, reduction, replacement or deactivation operation. The specific value can be represented by, for example, 3 bits, and different values represent different operations. The specific value is not limited in this application.

For the deactivation operation, the operation indication field in the above signaling may be used for identification, other fields may not be included, and a reason field may be included to indicate the reason for the deactivation. Deactivation will release all dynamic backhaul resources on the backhaul link.

It should be understood that the signaling for activating, reconfiguring, or deactivating the dynamic backhaul resource of the backhaul link may be transmitted on all downlink resources, that is, may be transmitted on fixed backhaul resources or dynamic backhaul resources.

It should be understood that the resource configuration information in the present application may further include an identifier (ID) of a physical node, and may also be a signal or message for protecting the resource configuration information associated with the ID of the physical node. Like the ID of the second node, the second node determines whether to receive the resource configuration information through the identifier. If the resource configuration information contains or is associated with a different physical node ID and a receiving node ID, a message or signaling containing the resource configuration information may be forwarded. If the resource configuration information contains or is associated with the same physical node ID and the receiving node ID, the resource configuration information is received and processed. I will not repeat them below.

In a possible implementation, the access resource set may further include configuration information of access links of the remaining nodes. For example, the host base station informs the first node of the configuration of backhaul and / or access resources of other nodes. The other nodes include the subordinate nodes or potential subordinate nodes of the first node. The potential subordinate nodes are likely to become subordinate nodes of the first node. IAB node, so that the first node can better control the scheduling. The following are the same and will not be described again.

Through the above method, more flexible activation, addition, reduction, replacement, or deactivation of dynamic resources on the backhaul link can be achieved, control is also faster, and the overhead of the control area is reduced. When the PDCCH is used to implement the foregoing operations, whether the PDCCH is used for resource adjustment of the dynamic backhaul link can be distinguished only through blind detection. If MAC CE is adopted, it is also very fast, reducing the complexity of implementation.

In a possible implementation, the above method for dynamically returning backhaul link allocation via PDCCH or MAC CE can be confirmed through feedback to ensure that resources between the first node and the second node do not conflict. . Therefore, it is a feasible method for the second node to respond after receiving the dynamic backhaul resource allocation of the first node.

Specifically, after the second node receives the first node to send a PDCCH to schedule or allocate dynamic backhaul resources of the backhaul link, the second node sends a response message to the first node, and the response message includes a positive response and a negative response, such as The response message can be ACK or NACK. The first node does not start transmitting on the scheduled resources until it receives the response message sent by the second node.

If the MAC CE is used for scheduling or allocation of the dynamic backhaul resource of the backhaul link, the MAC layer also sends an acknowledgement message. The method is similar and will not be described again.

It should be understood that the foregoing embodiments mainly take the access resource set or the backhaul resource set as an example to describe the specific implementation manner. For the embodiment taking the access resource set as an example, the method for returning the resource set is similar, and the corresponding backhaul resource set method can be obtained by simple replacement. The same is true for the embodiment taking the backhaul resource set as an example. For the sake of space, I will not repeat them here.

In a possible implementation, the first node may include at least one fixed backhaul resource and at least one dynamic resource in the resource configuration information. At least one dynamic resource is used to dynamically allocate between the access link and the backhaul link of the second node. Whether some or all of the dynamic resources are used for the access link or the backhaul link is achieved through scheduling by the second node.

Specifically, the method includes: the first node sends resource configuration information to the second node, the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource; the first node sends the first indication information to the second node, The first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

In a possible implementation, the first node sends second instruction information to the second node, and the second instruction information is used to re-assign the dynamic resource information of the at least one dynamic resource for the backhaul link.

The second indication information is used for reallocating the dynamic resources. It should be understood that the foregoing assignment of dynamic access resources or dynamic backhaul resources and dynamic resources through scheduling may be semi-static, that is, after each scheduling, the assigned resources for the backhaul link are It is considered to be a resource for the backhaul link until the next scheduling.

Re-assignment of dynamic resources can be achieved through the second indication information. It should be understood that the second indication information is also applicable to the dynamic access resources and / or dynamic backhaul resources in the foregoing embodiments, and details are not described again.

In a possible implementation, the first node sends the second indication information to the second node on the downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and The scheduled dynamic resources for the backhaul link are configured as time slots or subframes for downlink transmission.

The transmission of the second indication information is not limited to the fixed backhaul resource, and may also be transmitted on the dynamic resources that have been scheduled for the backhaul link. It should be understood that both the fixed backhaul resource used for transmitting the second indication information or the dynamic resource that has been scheduled for the backhaul link should be a resource configured for downlink transmission on the backhaul link. It should be understood that the resources in this application include time domain resources, frequency domain resources, time frequency resources, and code domain resources, which are not limited in this application.

In a possible implementation, the resource configuration is configured through a bitmap or string-based method. The specific bitmap configuration method and representation method are as described above, and will not be described again. It should be understood that, when the configuration is performed by a bitmap or a character string, a bitmap configuration manner may be adopted in the PDCCH or the MAC CE, which is not limited in this application.

In a possible implementation, after the first node sends the first indication information or the second indication information, it receives a response message sent by the first node. The specific response is as described above, and will not be repeated here.

It should be understood that the above is described from the perspective of the first node, and the second node has a similar method:

In a possible implementation, the second node determines the dynamic resource for the access link among the at least one dynamic resource according to the scheduled information of the dynamic resource for the backhaul link.

In a possible implementation, the second node receives the second indication information sent by the first node, and the second indication information is used to re-assign the information of the dynamic resources for the backhaul link among the at least one dynamic resource.

In a possible implementation, the resource configuration is configured through a bitmap or string-based method.

In a possible implementation, the second node receives the second indication information on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and a schedule for The dynamic resources of the backhaul link are configured as time slots or subframes for downlink transmission.

In a possible implementation, after receiving the first indication information or the second indication information, the second node sends a response message to the first node.

The specific implementation can refer to the previous method, and will not be described again.

In a possible implementation, the dynamic access resources, dynamic backhaul resources, or dynamic resources received by the second node are collectively referred to as soft resources. The meaning of the so-called soft resources includes that they can be used in the access chain. The resources of the road or backhaul link. The fixed access resources and / or fixed backhaul resources in the foregoing embodiments may also be referred to as hard resources.

Therefore, the foregoing method further includes: the second node acquires the soft resource; the second node receives the first instruction information sent by the first node, and the first instruction information is used to indicate the soft resource scheduled in the soft resource for the backhaul link Resource information.

In a possible implementation, the second node determines the dynamic resource for the access link among the at least one soft resource according to the scheduled soft resource information for the backhaul link.

In a possible implementation, the second node receives the second indication information sent by the first node, and the second indication information is used to re-assign the soft resource information of the back link among the at least one soft resource.

The above soft resource and / or hard resource may be sent by the first node to the second node through F1AP or RRC signaling. The details are as described above, and will not be described again.

The operation of the first node is similar to the method of the second node described above, and will not be described again.

The resource scheduling method according to the embodiment of the present application has been described in detail above with reference to FIGS. 1 to 14. The resource scheduling apparatus according to the embodiment of the present application is described in detail below with reference to FIGS. 15 to 17.

An embodiment of the present application further provides an apparatus for implementing any one of the foregoing methods. For example, an apparatus is provided, which includes a unit (or means) for implementing each step performed by the first node in any one of the above methods. For another example, another apparatus is provided, which includes a unit (or means) for implementing each step performed by the second node in any one of the methods.

FIG. 15 is a schematic block diagram of a resource scheduling apparatus 700 according to an embodiment of the present application. As shown in FIG. 15, the resource scheduling apparatus 700 may include a transceiver unit 710 and a processing unit 720.

In a possible implementation manner, the resource scheduling apparatus 700 may be a second node in the foregoing method 400, method 500, or method 600, and may also be a chip configured in the second node.

Specifically, the transceiver unit 710 is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain position of a backhaul resource set, where the backhaul resource set includes a fixed backhaul resource and multiple Dynamic backhaul resources;

The processing unit 720 is configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit 710 is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources. Information;

The processing unit 720 is further configured to determine the scheduled dynamic backhaul resource;

The transceiver unit 710 is further configured to receive a signal on the scheduled dynamic backhaul resource.

Optionally, the resource configuration information is further used to indicate a frequency domain position of the backhaul resource set.

Optionally, the transceiver unit 710 is specifically configured to receive a PDSCH on the scheduled dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured to receive the first downlink control information DCI sent by the first node at the first scheduled dynamic backhaul resource, and the first DCI is used to indicate that the first A downlink scheduling parameter of the scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

The processing unit 720 is further configured to determine downlink scheduling parameters of the first scheduled dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured to receive DCI on each of the scheduled dynamic backhaul resources in the scheduled dynamic backhaul resources, and the DCI is used to indicate each of the scheduled dynamic backhaul resources. Downlink scheduling parameters;

The processing unit 720 is further configured to determine downlink scheduling parameters of each dynamic backhaul resource;

The transceiver unit 710 is further configured to receive a signal on each of the scheduled dynamic backhaul resources.

Optionally, the first indication information is further used to indicate information about a receiving beam of the third scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource.

Optionally, the first indication information is DCI, and the DCI carries TCI information indicating a receiving beam of the third scheduled dynamic backhaul resource.

It should be understood that the device 700 for resource scheduling may correspond to the second node in the method 500 for resource scheduling according to the embodiment of the present application, and the device 700 for resource scheduling may include a second node for performing the method 500 for resource scheduling in FIG. 9 A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 700 and the other operations and / or functions described above are respectively to implement a corresponding process of the method 500 for resource scheduling in FIG. 9. For the specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 9 described above. For brevity, details are not described herein again.

Optionally, the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured to receive, at the fixed backhaul resource, the DCI of each of the scheduled dynamic backhaul resources of the scheduled dynamic backhaul resources sent by the first node, each of which The DCI of the scheduled dynamic backhaul resource is used to indicate the downlink scheduling parameters of each scheduled dynamic backhaul resource;

The processing unit 720 is further configured to determine downlink scheduling parameters of each scheduled dynamic backhaul resource;

The transceiver unit 710 is further configured to receive a signal on each scheduled dynamic backhaul resource.

It should be understood that the device 700 for resource scheduling may correspond to the second node in the method 400 for resource scheduling according to the embodiment of the present application. The device 700 for resource scheduling may include a second node for performing the method 400 for resource scheduling in FIG. 6. A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 700 and the other operations and / or functions described above are respectively to implement a corresponding process of the method 400 for resource scheduling in FIG. 6. For the specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 6 described above. For brevity, details are not described herein again.

Optionally, the DCI of each scheduled dynamic backhaul resource carries TCI information indicating a received beam of each scheduled dynamic backhaul resource.

Optionally, each of the scheduled dynamic backhaul resources corresponds to a control resource set, or each of the scheduled dynamic backhaul resources corresponds to one of the scheduled dynamic backhaul resources. A search space collection or a subset of a search space collection.

Optionally, the DCI of each scheduled dynamic backhaul resource in the scheduled dynamic backhaul resources is determined by the first node through a control resource set (CORESET) and a search space set (search space set), and the scheduled The DCI of each of the scheduled dynamic backhaul resources in the dynamic backhaul resource is bound to a control resource set, or the DCI of each of the scheduled dynamic backhaul resources in the scheduled dynamic backhaul resource is bound to a search Space collection.

Optionally, the first indication information further includes downlink scheduling parameters of the second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the second scheduled dynamic backhaul resource, where the fixed backhaul The transmission resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed transmission resource and the second scheduled dynamic backhaul resource are located in adjacent time units.

Optionally, the transceiver unit 710 is further configured to receive, at the fixed backhaul resource, information about a received beam of a third scheduled dynamic backhaul resource sent by the first node, where the scheduled dynamic backhaul resource includes The third scheduled dynamic backhaul resource;

The processing unit 720 is further configured to determine a receiving beam of the third scheduled dynamic backhaul resource.

Optionally, the first indication information is further used to indicate information of a receiving beam of the third scheduled dynamic backhaul resource.

Optionally, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the set of backhaul resources further includes at least one dynamic uplink backhaul resource, the at least one The dynamic uplink backhaul resource is scheduled by the fixed backhaul resource or multiple dynamic downlink backhaul resources.

Optionally, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the set of backhaul resources further includes a fixed uplink backhaul resource. The transceiver unit 710 And is further configured to receive the DCI of the fixed uplink backhaul resource sent by the first node at the fixed downlink backhaul resource.

In some possible implementation manners, the processing unit 720 is further configured to determine HARQ feedback information of the fixed downlink backhaul resource;

The transceiver unit 710 is further configured to send HARQ feedback information of the fixed downlink backhaul resource to the first node at the fixed uplink backhaul resource.

Optionally, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the backhaul resource set further includes a fixed uplink backhaul resource and multiple dynamic uplink The backhaul resource, the transceiver unit 710 is further configured to receive, at the fixed downlink backhaul resource, the DCI of the fixed uplink backhaul resource sent by the first node;

The processing unit 720 is further configured to determine a DCI of the fixed uplink backhaul resource;

The transceiver unit 710 is further configured to receive, at the first scheduled dynamic backhaul resource, the DCI of the first dynamic uplink backhaul resource sent by the first node, where the first dynamic uplink backhaul resource is the multiple dynamic backhaul resources. Any dynamic uplink backhaul resource among the uplink backhaul resources;

The processing unit 720 is further configured to determine a DCI of the first dynamic uplink backhaul resource.

Optionally, the processing unit 720 is further configured to determine HARQ feedback information of the fixed downlink backhaul resource;

The transceiver unit 710 is further configured to send HARQ feedback information of the fixed downlink backhaul resource to the first node at the fixed uplink backhaul resource;

The processing unit 720 is further configured to determine HARQ feedback information of the first scheduled dynamic backhaul resource;

The transceiver unit 710 is further configured to send the HARQ feedback information of the first scheduled dynamic backhaul resource to the first node on the first uplink dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain position of a backhaul resource set, where the backhaul resource set includes a fixed backhaul resource and Multiple dynamic backhaul resources;

The processing unit 720 is further configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit 710 is further configured to receive a second DCI sent by the first node, the second DCI is used to indicate a downlink scheduling parameter of a fourth scheduled dynamic backhaul resource, and the second DCI For indicating that the fifth scheduled dynamic backhaul resource is scheduled, the plurality of dynamic backhaul resources includes the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource, wherein the fixed backhaul The transmission resource and the fourth scheduled dynamic backhaul resource are located in the same time unit, or the fixed transmission resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units;

The processing unit 720 is further configured to determine the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource;

The transceiver unit 710 is further configured to receive signals on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured for the fifth scheduled dynamic backhaul resource, and receives a third DCI sent by the first node, and the third DCI is used to indicate the fifth scheduled dynamic backhaul. The downlink scheduling parameters of the resource and the third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, the plurality of dynamic backhaul resources including the sixth scheduled dynamic backhaul resource;

The processing unit 720 is further configured to determine the sixth scheduled dynamic backhaul resource.

Optionally, the transceiver unit 710 is further configured to receive, at the fixed backhaul resource, information about a receiving beam of the fifth scheduled dynamic backhaul resource sent by the first node;

The processing unit 720 is further configured to determine a receiving beam of the fifth scheduled dynamic backhaul resource; or

The transceiver unit 710 is further configured to receive, at the fifth scheduled dynamic backhaul resource, information about a receiving beam of the sixth scheduled dynamic backhaul resource sent by the first node;

The processing unit 720 is further configured to determine a receiving beam of the sixth scheduled dynamic backhaul resource.

Optionally, the second DCI carries a TCI indicating a receiving beam of the fifth scheduled dynamic backhaul resource.

Optionally, the third DCI carries a TCI to indicate a receiving beam of the sixth scheduled dynamic backhaul resource.

It should be understood that the device 700 for resource scheduling may correspond to the second node in the method 600 for resource scheduling according to the embodiment of the present application, and the device 700 for resource scheduling may include a second node for performing the method 600 for resource scheduling in FIG. 12 A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 600 and the other operations and / or functions described above are respectively to implement a corresponding process of the method 600 for resource scheduling in FIG. 12. For the specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 12 described above. For brevity, details are not described herein again.

Optionally, the transceiver unit 710 is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes at least one fixed access resource and / or multiple Dynamic access resources;

The transceiver unit 710 is further configured to receive first instruction information sent by the first node, where the first instruction information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

Optionally, the processing unit 720 is configured to determine, according to the information about the scheduled dynamic access resources for the backhaul link, the dynamic access resources for the access link among the multiple dynamic access resources.

Optionally, the transceiver unit 710 is further configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, and the backhaul resource set includes: at least one fixed backhaul resource and / Or multiple dynamic postback resources.

Optionally, the transceiver unit 710 is specifically configured to receive the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the backhauled resource set through different signaling or interfaces. The access resource set is configured by a bitmap or string-based method. The bitmap contains the unavailable access resource indicator and the fixed / dynamic access resource indicator bits. The unavailable access resource indicator has a higher priority than the fixed / dynamic access. Resource indication.

Optionally, the transceiver unit 710 is specifically configured to receive the first indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and the scheduled The dynamic access resources used for the backhaul link are configured as time slots or subframes for downlink transmission.

The first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation. The first indication information is carried on a PDCCH, and the PDCCH is scrambled by a FS-RNTI.

Optionally, the transceiver unit 710 is further configured to send a response message to the first node after the second node receives the first instruction information.

Optionally, the transceiver unit 710 is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple Dynamic backhaul resources;

The transceiver unit 710 is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the multiple dynamic backhaul resources.

Optionally, the processing unit 720 is further configured to determine a dynamic backhaul resource for the access link among the multiple dynamic backhaul resources according to the scheduled information of the dynamic backhaul resources for the backhaul link.

Optionally, the transceiver unit 710 is further configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes: at least one fixed access resource and / Or multiple dynamic access resources.

Optionally, the transceiver unit 710 is specifically configured to receive resource configuration information used to indicate access to the resource set and resource configuration information used to indicate the returned resource set through different signaling or interfaces.

The backhaul resource set is configured by a bitmap or string-based method. The bitmap contains indications of unavailable backhaul resources and fixed / dynamic backhaul resources. The priority of the unavailable backhaul resources is higher than that of the fixed / dynamic backhaul. Resource indication.

Optionally, the transceiver unit 710 is specifically configured to receive the first indication information in a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: a fixed backhaul resource and the passive transmission resource. The scheduled dynamic backhaul resources for the backhaul link are configured as time slots or subframes for downlink transmission.

Optionally, the transceiver unit 710 is further configured to send a response message to the first node after receiving the first instruction information.

Optionally, the transceiver unit 710 is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The transceiver unit 710 is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

Optionally, the processing unit 720 is configured to determine, based on the scheduled dynamic resource information for the backhaul link, the dynamic resource for the access link among the at least one dynamic resource.

Optionally, the transceiver unit 710 is further configured to receive second instruction information sent by the first node, and the second instruction information is used to re-assign the information of the dynamic resources for the backhaul link among the at least one dynamic resource.

Optionally, the resource configuration information is configured by a method based on a bitmap or a string.

Optionally, the transceiver unit 710 is further configured to receive the second indication information in a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: fixed backhaul resources and a schedule for The dynamic resources of the backhaul link are configured as time slots or subframes for downlink transmission.

Optionally, the transceiver unit 710 is further configured to send a response message to the first node after receiving the first indication information or the second indication information.

FIG. 16 is a schematic block diagram of a resource scheduling apparatus 800 according to an embodiment of the present application. As shown in FIG. 16, the resource scheduling apparatus 800 may include a processing unit 810 and a transceiver unit 820.

In a possible implementation manner, the device for resource scheduling may be a first node in the foregoing method 400, method 500, or method 600, or may be a chip configured in the first node.

Specifically, the processing unit 810 is configured to determine a fixed backhaul resource and multiple dynamic backhaul resources;

The transceiver unit 820 is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes the fixed backhauled resources and the multiple dynamic backhauls. Resources

The processing unit 810 is further configured to determine a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit 820 is further configured to send first indication information to the second node, where the first indication information is used to indicate information about the scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send a signal to the second node on the scheduled dynamic backhaul resource.

Optionally, the processing unit 810 is further configured to determine a first scheduled dynamic backhaul resource, where the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send the first downlink control information DCI to the second node at the first scheduled dynamic backhaul resource, and the first DCI is used to indicate the first scheduled dynamic backhaul. Downlink scheduling parameters for resources.

It should be understood that the device 800 for resource scheduling may correspond to the first node in the method 500 for resource scheduling according to the embodiment of the present application, and the device 800 for resource scheduling may include the first node for performing the method 500 for resource scheduling in FIG. 9 A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 800 and the other operations and / or functions described above are respectively to implement a corresponding process of the method 500 for resource scheduling in FIG. 9. For a specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 9 described above. For brevity, details are not described herein again.

Optionally, each of the scheduled dynamic backhaul resources corresponds to a control resource set, or each of the scheduled dynamic backhaul resources corresponds to one of the scheduled dynamic backhaul resources. Search space collection.

It should be understood that the device 800 for resource scheduling may correspond to the first node in the method 400 for resource scheduling according to the embodiment of the present application, and the device 800 for resource scheduling may include the first node for performing the method 400 for resource scheduling in FIG. 6 A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 800 and the other operations and / or functions described above are respectively to implement a corresponding process of the method 400 for resource scheduling in FIG. 6. For the specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 6 described above. For brevity, details are not described herein again.

Optionally, the processing unit 810 is further configured to determine a receiving beam of a third scheduled dynamic backhaul resource, where the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send, at the fixed backhaul resource, information about a receiving beam of a third scheduled dynamic backhaul resource to the second node.

Optionally, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the set of backhaul resources further includes a fixed uplink backhaul resource. The processing unit 810 Is also used to determine the DCI of the fixed uplink backhaul resource;

The transceiver unit 820 is further configured to send the DCI of the fixed uplink backhaul resource to the second node at the fixed downlink backhaul resource.

In some possible implementation manners, the transceiver unit 820 is further configured to receive, at the fixed uplink backhaul resource, HARQ feedback information of the fixed downlink backhaul resource sent by the second node;

The processing unit 810 is further configured to determine HARQ feedback information of the fixed downlink backhaul resource.

Optionally, the fixed backhaul resource is a fixed downlink backhaul resource, the multiple dynamic backhaul resources are multiple dynamic downlink backhaul resources, and the backhaul resource set further includes a fixed uplink backhaul resource and multiple dynamic uplink The return resource, the processing unit 810 is further configured to determine the DCI of the fixed uplink return resource;

The transceiver unit 820 is further configured to send the DCI of the fixed uplink backhaul resource to the second node at the fixed downlink backhaul resource;

The processing unit 810 is further configured to determine a DCI of a first dynamic uplink backhaul resource, where the first dynamic uplink backhaul resource is any one of the multiple dynamic uplink backhaul resources;

The transceiver unit 820 is further configured to send the DCI of the first dynamic uplink backhaul resource to the second node at the first scheduled dynamic backhaul resource.

Optionally, the transceiver unit 820 is further configured to receive HARQ feedback information of the fixed downlink backhaul resource sent by the second node on the fixed uplink backhaul resource;

The processing unit 810 is further configured to determine HARQ feedback information of the fixed downlink backhaul resource;

The transceiver unit 820 is further configured to receive, on the first uplink dynamic backhaul resource, HARQ feedback information of the first scheduled dynamic backhaul resource sent by the second node;

The processing unit 810 is further configured to determine HARQ feedback information of the first scheduled dynamic backhaul resource.

Optionally, the processing unit 810 is further configured to determine a fixed backhaul resource and multiple dynamic backhaul resources;

The transceiver unit 820 is further configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, where the backhaul resource set includes one of the fixed backhaul resource and the multiple dynamics. Return resource

The processing unit 810 is further configured to determine a fourth scheduled dynamic backhaul resource and a fifth scheduled dynamic backhaul resource, the multiple dynamic backhaul resources including the fourth scheduled dynamic backhaul resource and the first Five scheduled dynamic backhaul resources;

In the fixed backhaul resource, the transceiver unit 820 is further configured to send a second DCI to the second node, the second DCI is used to indicate a downlink scheduling parameter of the fourth scheduled dynamic backhaul resource, and the second DCI is used for The fifth scheduled dynamic backhaul resource is scheduled, where the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the fourth scheduled backhaul resource are scheduled. The scheduled dynamic backhaul resources are located in adjacent time units;

The transceiver unit 820 is further configured to send a signal to the second node on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

Optionally, the processing unit 820 is further configured to determine the sixth scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send a third DCI to the second node at the fifth scheduled dynamic backhaul resource, and the third DCI is used to indicate downlink scheduling of the fifth scheduled dynamic backhaul resource. Parameter and the third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the plurality of dynamic backhaul resources includes the sixth scheduled dynamic backhaul resource.

Optionally, the processing unit 810 is further configured to determine a receiving beam of the fifth scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send information of a receiving beam of the fifth scheduled dynamic backhaul resource to the second node at the fixed backhaul resource; or,

The processing unit 810 is further configured to determine a receiving beam of the sixth scheduled dynamic backhaul resource;

The transceiver unit 820 is further configured to send information about a receiving beam of the sixth scheduled dynamic backhaul resource to the second scheduled dynamic backhaul resource.

It should be understood that the device 800 for resource scheduling may correspond to the first node in the method 600 for resource scheduling according to the embodiment of the present application, and the device 800 for resource scheduling may include the first node for performing the method 600 for resource scheduling in FIG. 12 A unit of methods executed by a node. In addition, each unit in the resource scheduling apparatus 800 and the other operations and / or functions described above are respectively to implement a corresponding process of the resource scheduling method 600 in FIG. 12. For the specific process of each unit performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 12 described above. For brevity, details are not described herein again.

Optionally, the transceiver unit 820 is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes at least one fixed access resource and / or multiple Dynamic access to resources;

The transceiver unit 820 is further configured to send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

Optionally, the processing unit 810 is configured to determine a dynamic access resource for the access link according to the scheduled information of the dynamic access resource for the backhaul link.

Optionally, the transceiver unit 820 is further configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes: at least one fixed backhaul resource and / or Multiple dynamic postback resources.

Optionally, the transceiver unit 820 transmits the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the returned resource set to the second node through different signaling or interfaces.

Optionally, the access resource set is configured by a method based on a bitmap or a string. The bitmap includes an indication of an unavailable access resource and an indication bit of a fixed / dynamic access resource. The priority of the unavailable access resource indication is higher than the fixed value. / Dynamic access resource indication.

Optionally, the transceiver unit 820 is specifically configured to send the first indication information on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and the scheduled The dynamic access resources used for the backhaul link are configured as time slots or subframes for downlink transmission.

Optionally, the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.

Optionally, the transceiver unit 820 is further configured to receive a response message sent by the first node after sending the first indication information to the second node.

Optionally, the transceiver unit 820 is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple Dynamic backhaul resources;

Optionally, the transceiver unit 820 is further configured to send the first indication information to the second node, where the first indication information is used to indicate the dynamic backhaul resource scheduled for the backhaul link among the multiple backhaul resources. information.

Optionally, the processing unit 810 is configured to determine the dynamic backhaul resource used for the access link according to the information about the scheduled dynamic backhaul resource for the backhaul link.

Optionally, the transceiver unit 820 is further configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes: at least one fixed access resource and / or Multiple dynamic access resources.

Optionally, the transceiver unit 820 is specifically configured to send the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the backhauled resource set through different signaling or interfaces.

Optionally, the backhaul resource set is configured by a method based on a bitmap or a string. The bitmap includes an indication of an unavailable backhaul resource indicator and a fixed / dynamic backhaul resource indicator. / Dynamic return resource indication.

Optionally, the transceiver unit 820 is specifically configured to send the first indication information on a downlink transmission slot or subframe of the backhaul link, and the downlink transmission slot or subframe includes: fixed backhaul resources and scheduled for The dynamic access resources of the backhaul link are configured as time slots or subframes for downlink transmission.

Optionally, the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation. The first indication information is carried on a PDCCH, and the PDCCH is scrambled by a FS-RNTI.

Optionally, the transceiver unit is further configured to receive a response message sent by the first node after sending the first indication information to the second node.

Optionally, the transceiver unit 820 is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate at least one fixed backhaul resource and at least one dynamic resource;

The transceiver unit 820 is further configured to send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic resources scheduled for the backhaul link among the at least one dynamic resource.

Optionally, the transceiver unit 820 is further configured to send second instruction information to the second node, and the second instruction information is used to re-assign the dynamic resource information of the at least one dynamic resource for the backhaul link.

Optionally, the resource configuration is configured by a bitmap or string-based method.

Optionally, the transceiver unit 820 is further configured to send the second indication information to the second node on a downlink transmission time slot or subframe of the backhaul link. The downlink transmission time slot or subframe includes: fixed backhaul resources and The scheduled dynamic resources for the backhaul link are configured as time slots or subframes for downlink transmission.

Optionally, the transceiver unit 820 is further configured to receive a response message sent by the first node after sending the first indication information or the second indication information.

In terms of hardware implementation, the processing unit may be a processor or a processing circuit; the transceiver unit may be a transceiver (or a transceiver circuit), etc., and the transceiver unit may constitute a communication interface.

In a specific implementation process, the processor may be used to perform, for example, but not limited to, baseband related processing, and the transceiver may be used to perform, such as, but not limited to, radio frequency transceiver. The above-mentioned devices may be provided on separate chips from each other, or at least partly or entirely on the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, digital baseband processors can be used with multiple application processors (such as, but not limited to, graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip may be called a system chip (SOC). Whether each device is independently set on a different chip or integrated on one or more chips depends on the specific needs of the product design. The embodiment of the present invention does not limit the specific implementation form of the device.

FIG. 17 shows a schematic block diagram of a resource scheduling apparatus 900 according to an embodiment of the present application. The resource scheduling apparatus 900 shown in FIG. 17 includes a memory 910 and a processor 920.

The memory 910 is configured to store a program.

The processor 920 is configured to execute a program stored in the memory 910. When the program is executed, the processor 920 performs the following operations:

Receiving resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, the backhaul resource set includes a fixed backhaul resource and a plurality of dynamic backhaul resources;

Receiving, at the fixed backhaul resource, first indication information sent by the first node, where the first indication information is used to indicate information about a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

A signal sent by the first node is received on the scheduled dynamic backhaul resource.

Optionally, on the first scheduled dynamic backhaul resource, receiving first downlink control information DCI sent by the first node, the first DCI is used to indicate a downlink of the first scheduled dynamic backhaul resource. A scheduling parameter. The scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.

Optionally, at the fixed backhaul resource, information about a receiving beam of a third scheduled dynamic backhaul resource sent by the first node is received, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul Resources.

Optionally, receiving resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and multiple dynamic backhauled resources;

At the fixed backhaul resource, a second DCI sent by the first node is received, the second DCI is used to indicate a downlink scheduling parameter of a fourth scheduled dynamic backhaul resource, and the second DCI is used to indicate a fifth scheduled Dynamic return resources are scheduled, the multiple dynamic return resources include the fourth scheduled dynamic return resource and the fifth scheduled dynamic return resource, wherein the fixed return resource and the fourth The scheduled dynamic backhaul resource is located in the same time unit, or the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units;

A signal is received on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

Optionally, at the fifth scheduled dynamic backhaul resource, a third DCI sent by the first node is received, the third DCI is used to indicate a downlink scheduling parameter of the fifth scheduled dynamic backhaul resource, and the The third DCI is used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the multiple dynamic backhaul resources include the third sixth scheduled dynamic backhaul resource.

Optionally, at the fixed backhaul resource, receiving information of a receiving beam of the fifth scheduled dynamic backhaul resource sent by the first node; or,

The processor 920 is configured to execute a program stored in the memory 910. When the program is executed, the processor 920 may further perform the following operations:

Receiving resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes at least one fixed access resource and / or multiple dynamic access resources;

Receiving first instruction information sent by a first node, where the first instruction information is used to indicate information of a dynamic access resource scheduled for a backhaul link among a plurality of dynamic access resources.

Optionally, the dynamic access resources used for the access link among the multiple dynamic access resources are determined according to the information of the scheduled dynamic access resources used for the backhaul link.

Optionally, the resource configuration information sent by the first node is received, and the resource configuration information is used to indicate a time domain location of a set of backhauled resources. The set of backhauled resources includes at least one fixed backhauled resource and / or multiple dynamic backhauled resources. .

Optionally, the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the backhauled resource set are received through different signaling or interfaces. The access resource set is configured by a bitmap or string-based method. The bitmap contains the unavailable access resource indicator and the fixed / dynamic access resource indicator bits. The unavailable access resource indicator has a higher priority than the fixed / dynamic access. Resource indication.

Optionally, the method is configured to receive the first indication information on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and the scheduled backhaul chain The dynamic access resources of the channel are configured as time slots or subframes for downlink transmission.

Optionally, after the second node receives the first indication information, it sends a response message to the first node.

Receiving the resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain position of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources;

Receiving first indication information sent by a first node, where the first indication information is used to indicate information of a dynamic backhaul resource scheduled for a backhaul link among a plurality of dynamic backhaul resources.

Optionally, the dynamic backhaul resource for the access link among the multiple dynamic backhaul resources is determined according to the information of the scheduled dynamic backhaul resources for the backhaul link.

Optionally, receiving resource configuration information sent by the first node, the resource configuration information is used to indicate a time domain location of an access resource set, and the access resource set includes: at least one fixed access resource and / or multiple dynamic access resources .

Optionally, it is specifically configured to receive resource configuration information used to indicate access to the resource set and resource configuration information used to indicate the returned resource set through different signaling or interfaces.

Optionally, the first indication information is received on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and the scheduled backhaul chain The dynamic backhaul resource of the channel is configured as a time slot or a subframe for downlink transmission.

Optionally, after receiving the first indication information, sending a response message to the first node.

The processor 920 is configured to execute a program stored in the memory 910. When the program is executed, the processor 920 may also execute the methods in the foregoing embodiments, and details are not described herein again.

It should be understood that the device 900 may correspond to the second node in the foregoing method embodiments, and the processor 920 may perform operations of the second node in the foregoing method embodiments.

FIG. 18 is a schematic block diagram of a resource scheduling apparatus 1000 according to an embodiment of the present application. The resource scheduling apparatus 1000 shown in FIG. 18 includes a memory 1010 and a processor 1020.

The memory 1010 is configured to store a program.

The processor 1020 is configured to execute a program stored in the memory 1010. When the program is executed, the processor 1020 performs the following operations:

Send resource configuration information to the second node, where the resource configuration information is used to indicate the time domain location of the backhaul resource set, the backhaul resource set includes a fixed backhaul resource and a plurality of dynamic backhaul resources;

Sending, at the fixed backhaul resource, first indication information to the second node, where the first indication information is used to indicate information about a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

Send a signal to the second node on the scheduled dynamic backhaul resource.

Optionally, on the first scheduled dynamic backhaul resource, sending first downlink control information DCI to the second node, where the first DCI is used to indicate a downlink of the first scheduled dynamic backhaul resource. A scheduling parameter. The scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.

Optionally, at the fixed backhaul resource, send information of a received beam of a third scheduled dynamic backhaul resource to the second node, and the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul Resources.

Optionally, send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

At the fixed backhaul resource, send a second DCI to the second node, the second DCI is used to indicate a downlink scheduling parameter of the fourth scheduled dynamic backhaul resource, and the second DCI is used to indicate a fifth scheduled Dynamic backhaul resources are scheduled. The multiple dynamic backhaul resources include the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource, wherein the fixed backhaul resource and the fourth scheduled backhaul resource. The dynamic backhaul resource is located in the same time unit, or the fixed backhaul resource and the fourth scheduled dynamic backhaul resource are located in adjacent time units;

Send a signal to the second node on the fourth scheduled dynamic backhaul resource and the fifth scheduled dynamic backhaul resource.

Optionally, at the fifth scheduled dynamic backhaul resource, a third DCI is sent to the second node, where the third DCI is used to indicate downlink scheduling parameters of the fifth scheduled dynamic backhaul resource and the first Three DCIs are used to indicate that the sixth scheduled dynamic backhaul resource is scheduled, and the multiple dynamic backhaul resources include the sixth scheduled dynamic backhaul resource.

Optionally, at the fixed backhaul resource, send information of a receiving beam of the fifth scheduled dynamic backhaul resource to the second node; or

At the fifth scheduled dynamic backhaul resource, send the second node information about the receiving beam of the sixth scheduled dynamic backhaul resource.

The processor 1020 is configured to execute a program stored in the memory 1010. When the program is executed, the processor 1020 further performs the following operations:

Sending resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the access resource set, and the access resource set includes one fixed access resource and multiple dynamic access resources;

Send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic access resources scheduled for the backhaul link among the multiple dynamic access resources.

Optionally, the dynamic access resources used for the access link are determined according to the information of the scheduled dynamic access resources used for the backhaul link.

Optionally, the resource configuration information is sent to the second node, and the resource configuration information is used to indicate a time domain location of the backhaul resource set. The backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources.

Optionally, the resource configuration information used to indicate the access resource set and the resource configuration information used to indicate the returned resource set are transmitted to the second node through different signaling or interfaces.

Optionally, the first indication information is sent on a downlink transmission time slot or subframe of the backhaul link, and the downlink transmission time slot or subframe includes: a fixed backhaul resource and the scheduled backhaul link Dynamic access resources are configured as time slots or subframes for downlink transmission.

Optionally, the first indication information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.

Optionally, after sending the first indication information to the second node, a response message sent by the first node is received.

Sending resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of the backhaul resource set, and the backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources;

Send the first indication information to the second node, where the first indication information is used to indicate information of the dynamic backhaul resource scheduled for the backhaul link among the plurality of dynamic backhaul resources.

Optionally, the dynamic backhaul resource used for the access link is determined according to the information about the scheduled dynamic backhaul resource for the backhaul link.

Optionally, the resource configuration information is sent to the second node, and the resource configuration information is used to indicate a time domain location of the access resource set. The access resource set includes: at least one fixed access resource and / or multiple dynamic access resources.

Optionally, it is specifically configured to send the resource configuration information for indicating the access resource set and the resource configuration information for indicating the backhauled resource set through different signaling or interfaces.

Optionally, the backhaul resource set is configured by a method based on a bitmap or a string. The bitmap includes an indication of an unavailable backhaul resource indication and a fixed / dynamic backhaul resource indication bit. The unavailable backhaul resource indication has a higher priority than the fixed / Dynamic return resource indication.

Optionally, it is specifically configured to send the first indication information on a downlink transmission slot or subframe of the backhaul link, and the downlink transmission slot or subframe includes: a fixed backhaul resource and a schedule for the backhaul link The dynamic access resources are configured as time slots or subframes for downlink transmission.

The processor 1020 is configured to execute a program stored in the memory 1010. When the program is executed, the processor 1020 further executes the methods in the foregoing embodiments, and details are not described herein again.

It should be understood that the device 1000 may correspond to the first node in the foregoing method embodiments, and the processor 1020 may perform operations of the first node in the foregoing method embodiments.

The above memory may be a physically independent unit, or may be integrated with a processor. The device may also include only a processor. The memory for storing the program is located outside the device, and the processor is connected to the memory through a circuit / wire for reading and executing the program stored in the memory.

If the device includes only a processor, it is used to perform the various methods described above. During the execution of these methods, the process of sending the above-mentioned information and receiving the above-mentioned information in the above-mentioned methods can be understood as the process in which the processor outputs the above-mentioned information, and the process in which the processor receives the above-mentioned information input. Specifically, when the above information is output, the processor outputs the above information to the transceiver for transmission by the transceiver. Furthermore, after the above information is output by the processor, other processing may be required before it reaches the transceiver. Similarly, when the processor receives the inputted information, the transceiver receives the information and inputs it to the processor. Furthermore, after the transceiver receives the above information, the above information may need to be processed further before being input to the processor.

In this way, if there is no special instruction for the operations related to the transmission, sending, and receiving of the processor, or if it does not conflict with its actual role or internal logic in the related description, it can be more generally understood as The processor outputs and receives inputs, rather than transmitting, transmitting, and receiving operations performed directly by the RF circuit and antenna.

According to the method provided in the embodiment of the present application, the present application further provides a computer program product. The computer program product includes: computer program code that, when the computer program code runs on a computer, causes the computer to execute the method in the foregoing embodiment. .

According to the method provided in the embodiment of the present application, the present application further provides a computer-readable medium. The computer-readable interpretation stores program code, and when the program code runs on the computer, the computer executes the method in the foregoing embodiment. .

According to the method provided in the embodiment of the present application, the present application further provides a system, which includes the foregoing first node and / or the second node.

Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A professional technician can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and are not repeated here.

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

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

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

When the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application. The aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks, and other media that can store program codes .

The above is only a specific implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for resource scheduling, comprising:

The second node receives resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

In the fixed backhaul resource, the second node receives first indication information sent by the first node, and the first indication information is used to indicate a scheduled dynamic backhaul among the multiple dynamic backhaul resources. Resource information

The second node receives a signal sent by the first node on the scheduled dynamic backhaul resource.
The method according to claim 1, further comprising:

On the first scheduled dynamic backhaul resource, the second node receives the first downlink control information DCI sent by the first node, and the first DCI is used to indicate the first scheduled dynamic backhaul resource. Downlink scheduling parameters of transmission resources, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.
The method according to claim 1, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The method according to claim 3, wherein each of the scheduled dynamic backhaul resources corresponds to a set of control resources, or the scheduled dynamic backhaul resources Each of the scheduled dynamic backhaul resources corresponds to a search space set or a subset of a search space set.
The method according to claim 1 or 2, wherein the first indication information further comprises downlink scheduling parameters of a second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The method according to any one of claims 1 to 5, wherein the method further comprises:

In the fixed backhaul resource, the second node receives information about a received beam of a third scheduled dynamic backhaul resource sent by the first node, and the scheduled dynamic backhaul resource includes the third Scheduled dynamic backhaul resources.
A method for resource scheduling, comprising:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

In the fixed backhaul resource, the first node sends first indication information to the second node, and the first indication information is used to indicate a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources. Information;

The first node sends a signal to the second node on the scheduled dynamic backhaul resource.
The method according to claim 7, further comprising:

On the first scheduled dynamic backhaul resource, the first node sends a first DCI to the second node, and the first DCI is used to indicate downlink scheduling of the first scheduled dynamic backhaul resource. Parameter, the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource.
The method according to claim 7, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The method according to claim 9, wherein each of the scheduled dynamic backhaul resources corresponds to a control resource set, or the scheduled dynamic backhaul resources Each scheduled dynamic backhaul resource corresponds to a search space set or a subset of a search space set.
The method according to claim 7 or 8, wherein the first indication information further includes downlink scheduling parameters of a second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The method according to any one of claims 7 to 11, wherein the method further comprises:

In the fixed backhaul resource, the first node sends information about a received beam of a third scheduled dynamic backhaul resource to the second node, and the scheduled dynamic backhaul resource includes the third scheduled backhaul resource. Scheduled dynamic backhaul resources.
A device for resource scheduling, comprising:

The transceiver unit is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and multiple dynamic backhauls Resources

A processing unit, configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources;

In the fixed backhaul resource, the transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a scheduled one of the plurality of dynamic backhaul resources. Dynamically return information about resources;

The processing unit is further configured to determine the scheduled dynamic backhaul resource;

The transceiver unit is further configured to receive a signal sent by the first node on the scheduled dynamic backhaul resource.
The apparatus according to claim 13, wherein the transceiver unit is further configured to receive the first downlink control information DCI sent by the first node on a first scheduled dynamic backhaul resource, and The first DCI is used to indicate a downlink scheduling parameter of the first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

The processing unit is further configured to determine a downlink scheduling parameter of the first scheduled dynamic backhaul resource.
The apparatus according to claim 13, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The apparatus according to claim 15, wherein each of the scheduled dynamic backhaul resources corresponds to a control resource set, or the scheduled dynamic backhaul resources Each of the scheduled dynamic backhaul resources corresponds to a search space set or a subset of a search space set.
The apparatus according to claim 13 or 14, wherein the first indication information further includes downlink scheduling parameters of a second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The device according to any one of claims 13 to 17, wherein the transceiver unit is further configured to receive, on the fixed backhaul resource, a third scheduled dynamic reply sent by the first node. Information of a received beam of the transmission resource, the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource;

The processing unit is further configured to determine a receiving beam of the third scheduled dynamic backhaul resource.
A device for resource scheduling, comprising:

A processing unit for determining a fixed backhaul resource and a plurality of dynamic backhaul resources;

The transceiver unit is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes the fixed backhauled resources and the multiple dynamics Return resource

The processing unit is further configured to determine a scheduled dynamic backhaul resource among the multiple dynamic backhaul resources;

At the fixed backhaul resource, the transceiver unit is further configured to send first indication information to the second node, where the first indication information is used to indicate information about the scheduled dynamic backhaul resource;

The transceiver unit is further configured to send a signal to the second node on the scheduled dynamic backhaul resource.
The apparatus according to claim 19, wherein the processing unit is further configured to determine a first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource. Return resource

The transceiver unit is further configured to send a first DCI to the second node on the first scheduled dynamic backhaul resource, and the first DCI is used to indicate the first scheduled dynamic backhaul. Downlink scheduling parameters of transmission resources.
The apparatus according to claim 19, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The apparatus according to claim 21, wherein each of the scheduled dynamic backhaul resources corresponds to a control resource set, or the scheduled dynamic backhaul resources are Each scheduled dynamic backhaul resource corresponds to a search space set or a subset of a search space set.
The apparatus according to claim 19 or 20, wherein the first indication information further comprises downlink scheduling parameters of a second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The apparatus according to any one of claims 19 to 23, wherein the processing unit is further configured to determine a receiving beam of a third scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource Including the third scheduled dynamic backhaul resource;

The transceiver unit is further configured to send, to the second node, information about a received beam of a third scheduled dynamic loopback resource to the second node.
A method for determining resources, including:

The second node receives resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes one fixed access resource and multiple dynamic access resources;

Receiving, by the second node, first indication information sent by the first node, where the first indication information is used to indicate a dynamic access resource scheduled for a backhaul link among the multiple dynamic access resources Information.
The method according to claim 25, comprising:

Determining, by the second node, the dynamic access resource for the access link among the plurality of dynamic access resources according to the scheduled information of the dynamic access resource for the backhaul link.
The method according to claim 25 or 26, further comprising:

Receiving, by the second node, resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, and the backhaul resource set includes: at least one fixed backhaul resource and / Or multiple dynamic postback resources.
The method according to claim 27, wherein the resource configuration information for indicating an access resource set and the resource configuration information for indicating a backhaul resource set are transmitted through different signaling or interfaces.
The method according to any one of claims 25 to 28, wherein the access resource set is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable access resource indication and a fixed / dynamic access. The indication bit of the incoming resource, the priority of the unavailable access resource indication is higher than the fixed / dynamic access resource indication.
The method according to any one of claims 25 to 29, wherein the second node receives the first indication information in a downlink transmission slot or subframe of a return link, and during the downlink transmission, The slot or subframe includes: a fixed backhaul resource and the scheduled dynamic access resource for the backhaul link is configured as a time slot or subframe for downlink transmission.
The method according to any one of claims 25-30, wherein the first indication information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.
The method according to claim 31, wherein the first indication information is carried on a PDCCH, and the PDCCH is scrambled by a FS-RNTI.
The method according to any one of claims 25-32, comprising:

After receiving the first indication information, the second node sends a response message to the first node.
A method for resource scheduling, comprising:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes one fixed access resource and multiple dynamic access resources;

Sending, by the first node, first indication information to the second node, where the first indication information is used to indicate that the dynamic access resources of the multiple dynamic access resources scheduled for a backhaul link are information.
The method according to claim 34, comprising:

The first node determines a dynamic access resource for the access link according to the scheduled information of the dynamic access resource for the backhaul link.
The method according to claim 34 or 35, further comprising:

Sending, by the first node, resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes at least one fixed backhauled resource and / or Multiple dynamic postback resources.
The method according to claim 36, wherein the resource configuration information for indicating an access resource set and the resource configuration information for indicating a backhaul resource set are transmitted through different signaling or interfaces.
The method according to any one of claims 34 to 37, wherein the access resource set is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable access resource indication and a fixed / dynamic access. The indication bit of the incoming resource, the priority of the unavailable access resource indication is higher than the fixed / dynamic access resource indication.
The method according to any one of claims 34 to 38, wherein the first node sends the first indication information in a downlink transmission slot or subframe of a backhaul link, and during the downlink transmission, The slot or subframe includes: a fixed backhaul resource and the scheduled dynamic access resource for the backhaul link is configured as a time slot or subframe for downlink transmission.
The method according to any one of claims 34 to 39, wherein the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.
The method according to claim 40, wherein the first indication information is carried on a PDCCH, and the PDCCH is scrambled by an FS-RNTI.
The method according to any one of claims 34-41, comprising:

After the first node sends the first indication information to the second node, it receives a response message sent by the first node.
A method for determining resources, including:

The second node receives resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

Receiving, by the second node, first indication information sent by the first node, where the first indication information is used to indicate a dynamic backhaul resource scheduled for a backhaul link among the plurality of dynamic backhaul resources Information.
The method according to claim 43, comprising:

Determining, by the second node, the dynamic backhaul resource for the access link among the plurality of dynamic backhaul resources according to the information about the scheduled dynamic backhaul resources for the backhaul link.
The method according to claim 43 or 44, further comprising:

Receiving, by the second node, resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes: at least one fixed access resource and / Or multiple dynamic access resources.
The method according to claim 45, wherein the resource configuration information for indicating an access resource set and the resource configuration information for indicating a backhaul resource set are transmitted through different signaling or interfaces.
The method according to any one of claims 43 to 46, wherein the backhaul resource set is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable backhaul resource indication and a fixed / dynamic backhaul. The indication bit of the transmission resource. The priority of the unavailable access resource indication is higher than the fixed / dynamic backhaul resource indication.
The method according to any one of claims 43 to 47, wherein the second node receives the first indication information in a downlink transmission time slot or a subframe of a backhaul link, and during the downlink transmission, The slot or subframe includes: a fixed backhaul resource and the scheduled dynamic backhaul resource for the backhaul link is configured as a time slot or subframe for downlink transmission.
The method according to any one of claims 43 to 48, wherein the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.
The method according to claim 49, wherein the first indication information is carried on a PDCCH, and the PDCCH is scrambled by a FS-RNTI.
The method according to any one of claims 43-50, comprising:

After receiving the first indication information, the second node sends a response message to the first node.
A method for resource scheduling, comprising:

The first node sends resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and a plurality of dynamic backhauled resources;

Sending, by the first node, first indication information to the second node, where the first indication information is used to indicate a dynamic backhaul resource scheduled for a backhaul link among the plurality of dynamic backhaul resources. information.
The method according to claim 52, comprising:

The first node sends a signal to the second node on the scheduled dynamic backhaul resource.
The method according to claim 52 or 53, further comprising:

Sending, by the first node, resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes: at least one fixed access resource and / or Multiple dynamic access resources.
The method according to claim 54, wherein the resource configuration information for indicating an access resource set and the resource configuration information for indicating a backhaul resource set are transmitted through different signaling or interfaces.
The method according to any one of claims 52 to 55, wherein the set of backhaul resources is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable backhaul resource indication and a fixed / dynamic backhaul. The indication bit of the transmission resource. The priority of the unavailable backhaul resource indication is higher than the fixed / dynamic backhaul resource indication.
The method according to any one of claims 52-56, wherein the first node sends the first indication information in a downlink transmission slot or subframe of a return link, and during the downlink transmission, The slot or subframe includes: a fixed backhaul resource and the scheduled dynamic access resource for the backhaul link is configured as a time slot or subframe for downlink transmission.
The method according to any one of claims 52-57, wherein the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.
The method according to claim 58, wherein the first indication information is carried on a PDCCH, and the PDCCH is scrambled by FS-RNTI.
The method according to any one of claims 52-59, comprising:

After the first node sends the first indication information to the second node, it receives a response message sent by the first node.
A device for determining resources, which includes:

A transceiver unit, configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes one fixed access resource and multiple dynamic accesses Resources

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a dynamic status of a backhaul link scheduled among the multiple dynamic access resources. Information on access resources.
The apparatus according to claim 61, comprising:

A processing unit, configured to determine a dynamic access resource for the access link among the plurality of dynamic access resources according to the information about the scheduled dynamic access resource for the backhaul link.
The apparatus according to claim 61 or 62, wherein the transceiver unit is further configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain of a backhaul resource set Location, the set of backhaul resources includes: at least one fixed backhaul resource and / or multiple dynamic backhaul resources.
The apparatus according to claim 63, wherein the transceiver unit is specifically configured to receive the resource configuration information for indicating an access resource set and the return for instructing transmission through different signaling or interfaces. Resource configuration information for a resource collection.
The device according to claim 61-64, wherein the access resource set is configured by a method based on a bitmap or a character string, and the bitmap includes an indication of unavailable access resources and fixed / dynamic access resources. An indication bit, the priority of the unavailable access resource indication is higher than the fixed / dynamic access resource indication.
The device according to claim 61-65, wherein the transceiver unit is specifically configured to receive the first indication information on a downlink transmission slot or subframe of a return link, and during the downlink transmission, The slot or subframe includes: a fixed backhaul resource and the scheduled dynamic access resource for the backhaul link is configured as a time slot or subframe for downlink transmission.
The device according to claim 61-66, wherein the first instruction information is used to indicate one of the following operations: activation, increase, decrease, replacement, and deactivation.
The apparatus according to claim 67, wherein the first indication information is carried on a PDCCH, and the PDCCH is scrambled by a FS-RNTI.
The device according to any one of claims 61-68, comprising:

The transceiver unit is further configured to send a response message to the first node after the second node receives the first indication information.
A device for determining resources, which includes:

The transceiver unit is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes at least one fixed access resource and / or multiple Dynamic access to resources;

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a dynamic status of a backhaul link scheduled among the multiple dynamic access resources. Information on access resources.
A device for determining resources, which includes:

A transceiver unit, configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes at least one fixed access resource and / or multiple dynamics Access resources

The transceiver unit is further configured to send first indication information to the second node, where the first indication information is used to indicate the dynamic access for the backhaul link scheduled in the multiple dynamic access resources. Information about incoming resources.
A device for determining resources, which includes:

The transceiver unit is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes a fixed backhauled resource and multiple dynamic backhauls Resources

The transceiver unit is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a dynamic status of a backhaul link scheduled among the multiple dynamic backhaul resources. Returns information about the resource.
A device for determining resources, which includes:

The transceiver unit is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of a backhaul resource set, where the backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamics Return resource

The transceiver unit is further configured to send first indication information to the second node, where the first indication information is used to instruct the dynamic backhaul link scheduled for the backhaul link among the multiple dynamic backhaul resources. Send information about resources.
A device for resource scheduling, comprising:

The transceiver is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhaul resources, where the backhaul resource set includes a fixed backhaul resource and multiple dynamic backhauls Resources

A processor, configured to determine the fixed backhaul resource and the multiple dynamic backhaul resources;

In the fixed backhaul resource, the transceiver is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate that the multiple dynamic backhaul resources are scheduled. Dynamically return information about resources;

The processor is further configured to determine the scheduled dynamic backhaul resource;

The transceiver is further configured to receive a signal sent by the first node on the scheduled dynamic backhaul resource.
The apparatus according to claim 74, wherein the transceiver is further configured to receive the first downlink control information DCI sent by the first node on a first scheduled dynamic return resource, and The first DCI is used to indicate a downlink scheduling parameter of the first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource;

The processor is further configured to determine a downlink scheduling parameter of the first scheduled dynamic backhaul resource.
The apparatus according to claim 74, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The apparatus according to claim 76, wherein each of the scheduled dynamic backhaul resources corresponds to a set of control resources, or the scheduled dynamic backhaul resources Each of the scheduled dynamic backhaul resources corresponds to a search space set or a subset of a search space set.
The apparatus according to claim 75 or 76, wherein the first indication information further comprises downlink scheduling parameters of a second scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The apparatus according to any one of claims 74 to 78, wherein the transceiver is further configured to receive, on the fixed backhaul resource, a third scheduled dynamic backhaul sent by the first node Information of a received beam of the resource, the scheduled dynamic backhaul resource includes the third scheduled dynamic backhaul resource;

The processor is further configured to determine a receiving beam of the third scheduled dynamic backhaul resource.
A device for resource scheduling, comprising:

A processor for determining a fixed backhaul resource and a plurality of dynamic backhaul resources;

A transceiver, configured to send resource configuration information to a second node, where the resource configuration information is used to indicate a time domain location of a set of backhauled resources, where the set of backhauled resources includes the fixed backhauled resources and the plurality of dynamics Return resource

The processor is further configured to determine a scheduled dynamic backhaul resource among the plurality of dynamic backhaul resources;

At the fixed backhaul resource, the transceiver is further configured to send first indication information to the second node, where the first indication information is used to indicate information about the scheduled dynamic backhaul resource;

The transceiver is further configured to send a signal to the second node on the scheduled dynamic backhaul resource.
The apparatus according to claim 80, wherein the processor is further configured to determine a first scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource includes the first scheduled dynamic backhaul resource. Return resource

The transceiver is further configured to send a first DCI to the second node on the first scheduled dynamic backhaul resource, and the first DCI is used to indicate the first scheduled dynamic backhaul. Downlink scheduling parameters of transmission resources.
The apparatus according to claim 80, wherein the first indication information includes downlink scheduling parameters of the scheduled dynamic backhaul resource.
The apparatus according to claim 82, wherein each of the scheduled dynamic return resources corresponds to a control resource set, or the scheduled dynamic return resources Each scheduled dynamic backhaul resource corresponds to a search space set or a subset of a search space set.
The apparatus according to claim 80 or 81, wherein the first indication information further comprises downlink scheduling parameters of a second scheduled dynamic return resource, and the scheduled dynamic return resource includes the first Two scheduled dynamic backhaul resources, wherein the fixed backhaul resource and the second scheduled dynamic backhaul resource are located in the same time unit, or the fixed backhaul resource and the second scheduled dynamic backhaul resource Of dynamic backhaul resources are located in adjacent time units.
The apparatus according to any one of claims 80 to 84, wherein the processor is further configured to determine a receiving beam of a third scheduled dynamic backhaul resource, and the scheduled dynamic backhaul resource Including the third scheduled dynamic backhaul resource;

The transceiver is further configured to send, at the fixed backhaul resource, information about a receiving beam of a third scheduled dynamic backhaul resource to the second node.
A device for determining resources, which includes:

A transceiver, configured to receive resource configuration information sent by a first node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes one fixed access resource and multiple dynamic accesses Resources

The transceiver is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a dynamic status of a backhaul link scheduled among the multiple dynamic access resources. Information on access resources.
The apparatus according to claim 86, comprising:

A processor, configured to determine, according to the information about the scheduled dynamic access resources for the backhaul link, a dynamic access resource for the access link among the plurality of dynamic access resources.
The apparatus according to claim 86 or 87, wherein the transceiver is further configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain of a backhaul resource set Location, the set of backhaul resources includes: at least one fixed backhaul resource and / or multiple dynamic backhaul resources.
The apparatus according to any one of claims 86 to 88, wherein the access resource set is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable access resource indication and a fixed / dynamic access. The indication bit of the incoming resource, the priority of the unavailable access resource indication is higher than the fixed / dynamic access resource indication.
The device according to any one of claims 86 to 89, comprising:

The transceiver is further configured to send a response message to the first node after the second node receives the first indication information.
A device for determining resources, which includes:

A transceiver, configured to send resource configuration information to a second node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes one fixed access resource and multiple dynamic access resources ;

The transceiver is further configured to send first indication information to the second node, where the first indication information is used to indicate a dynamic access for the backhaul link scheduled in the multiple dynamic access resources. Information about incoming resources.
The apparatus according to claim 91, comprising:

A processor, configured to determine the dynamic access resource used for the access link according to the information about the scheduled dynamic access resource used for the backhaul link.
The apparatus according to claim 91 and 92, wherein the transceiver is further configured to send resource configuration information to the second node, and the resource configuration information is used to indicate a time domain location of a backhaul resource set. The backhaul resource set includes at least one fixed backhaul resource and / or multiple dynamic backhaul resources.
The device according to any one of claims 91 to 93, wherein the access resource set is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable access resource indication and a fixed / dynamic access. The indication bit of the incoming resource, the priority of the unavailable access resource indication is higher than the fixed / dynamic access resource indication.
The device according to any one of claims 91-94, comprising:

The transceiver is further configured to receive a response message sent by the first node after sending the first indication information to the second node.
A device for determining resources, which includes:

The transceiver is configured to receive resource configuration information sent by the first node, where the resource configuration information is used to indicate a time domain location of a set of backhaul resources, where the backhaul resource set includes a fixed backhaul resource and multiple dynamic backhauls Resources

The transceiver is further configured to receive first indication information sent by the first node, where the first indication information is used to indicate a dynamic status of a backhaul link scheduled in the multiple dynamic backhaul resources. Returns information about the resource.
The apparatus according to claim 96, further comprising:

A processor, configured to determine a dynamic backhaul resource for the access link among the plurality of dynamic backhaul resources according to the information about the scheduled dynamic backhaul resources for the backhaul link.
The apparatus according to claim 96 or 97, wherein the transceiver is further configured to receive resource configuration information sent by the first node, and the resource configuration information is used to indicate a time domain of an access resource set Location, the access resource set includes: at least one fixed access resource and / or multiple dynamic access resources.
The device according to any one of claims 96-98, wherein the set of backhaul resources is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable backhaul resource indication and a fixed / dynamic backhaul. The indication bit of the transmission resource. The priority of the unavailable access resource indication is higher than the fixed / dynamic backhaul resource indication.
The device according to any one of claims 96-99, comprising:

The transceiver is further configured to send a response message to the first node after receiving the first indication information.
A device for determining resources, which includes:

The transceiver is configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain position of a set of backhaul resources, where the set of backhaul resources includes a fixed backhaul resource and a plurality of dynamic backhaul resources ;

The transceiver is further configured to send first indication information to the second node, where the first indication information is used to instruct the dynamic backhaul link scheduled for the backhaul link among the multiple dynamic backhaul resources. Send information about resources.
The apparatus according to claim 101, comprising:

A processor, configured to determine the dynamic backhaul resource used for the access link according to the information about the scheduled dynamic backhaul resource for the backhaul link.
The apparatus according to claim 101 or 102, further comprising:

The transceiver is further configured to send resource configuration information to the second node, where the resource configuration information is used to indicate a time domain location of an access resource set, where the access resource set includes: at least one fixed access resource And / or multiple dynamic access resources.
The device according to any one of claims 101 to 103, wherein the set of backhaul resources is configured by a method based on a bitmap or a string, and the bitmap includes an unavailable backhaul resource indication and a fixed / dynamic backhaul The indication bit of the transmission resource. The priority of the unavailable backhaul resource indication is higher than the fixed / dynamic backhaul resource indication.
The device according to any one of claims 101-104, comprising:

The transceiver is further configured to receive a response message sent by the first node after sending the first indication information to the second node.
A device for resource scheduling, comprising: a processor, the processor being coupled to a memory;

The memory is used to store a computer program;

The processor is configured to execute a computer program stored in the memory, so that the IAB node executes the resource scheduling method according to any one of claims 1 to 6, or executes any one of claims 7 to 12. Item of the resource scheduling method.
An apparatus for determining resources, comprising: a processor, the processor being coupled to a memory;

The memory is used to store a computer program;

The processor is configured to execute a computer program stored in the memory, so that the IAB node executes the method for resource determination according to any one of claims 25 to 33, or executes any method according to any one of claims 34 to 42. The method for resource determination according to one item, or the method for resource determination according to any one of claims 43 to 51, or the method for resource determination according to any one of claims 52 to 59.
A computer-readable medium, comprising a computer program, which, when the computer program runs on a computer, causes the computer to execute claims 1 to 6, or 7 to 12, or 25 to 33, or 34 The method according to any one of 42, 42 or 43 to 51, or 52 to 59.
A computer program product containing instructions, wherein when the instructions are run on a computer, the computer causes the computer to execute claims 1 to 6, or 7 to 12, or 25 to 33, or 34 to 42, or The method according to any one of 43 to 51, or 52 to 59.