JP-7855830-B2 - Wireless communication method and apparatus

JP7855830B2JP 7855830 B2JP7855830 B2JP 7855830B2JP-7855830-B2

Inventors

ユエン，シートーン
リウ，フオンウエイ
ソーン，シーンホワ

Assignees

華為技術有限公司

Dates

Publication Date: 20260511
Application Date: 20220402
Priority Date: 20210402

Claims (17)

A wireless communication method applicable to a relay device used for relay communication between a network device and a terminal device, The receiving of configuration information from the network device, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including availability instructions for a plurality of time-domain resources or frequency-domain resources , the plurality of instruction sets including a first instruction set and a second instruction set, the first instruction set corresponding to the time-domain resources, the second instruction set corresponding to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set being different from the identification information for the second instruction set , the receiving of A method comprising determining the availability of the time- domain resource and/or the frequency -domain resource based on the aforementioned configuration information.
The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The method according to claim 1.
The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The method according to claim 1.
A wireless communication method applicable to network devices, The transmission involves sending configuration information to a relay device used for relay communication between the network device and the terminal device, wherein the configuration information indicates resource availability, the configuration information includes identification information for a plurality of instruction sets, each instruction set includes availability instructions for a plurality of time-domain resources or frequency-domain resources , the plurality of instruction sets include a first instruction set and a second instruction set, the first instruction set corresponds to the time-domain resources, the second instruction set corresponds to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set is different from the identification information for the second instruction set . The configuration information is used to determine the availability of the time- domain resources and/or the frequency-domain resources based on the configuration information. method.
The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The method according to claim 4 .
The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The method according to claim 4 .
A relay device used for relay communication between a network device and a terminal device, The system comprises a processor and a non-temporary computer-readable storage medium that stores a program executed by the processor, The program will be configured to run to the relay device. The receiving of configuration information from the network device, the configuration information indicating resource availability, the configuration information including identification information for a plurality of instruction sets, each instruction set including availability instructions for a plurality of time-domain resources or frequency-domain resources , the plurality of instruction sets including a first instruction set and a second instruction set, the first instruction set corresponding to the time-domain resources, the second instruction set corresponding to the availability instructions for the frequency-domain resources, and the identification information for the first instruction set being different from the identification information for the second instruction set , the receiving of A relay device that includes an instruction to perform the following: determine the availability of the time- domain resource and/or the frequency -domain resource based on the aforementioned configuration information.
The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The relay device according to claim 7 .
The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The relay device according to claim 7 .
A network device, The system comprises a processor and a non-temporary computer-readable storage medium that stores a program executed by the processor, The program is configured on the network device. The configuration information is transmitted to a relay device used for relay communication between the network device and the terminal device, the configuration information indicates resource availability, the configuration information includes identification information for a plurality of instruction sets, each instruction set includes availability instructions for a plurality of time-domain resources or frequency-domain resources , the plurality of instruction sets include a first instruction set and a second instruction set, the first instruction set corresponds to the time-domain resources, the second instruction set corresponds to the availability instructions for the frequency-domain resources, the identification information for the first instruction set is different from the identification information for the second instruction set , and includes an instruction that causes the transmission to be performed. The aforementioned configuration information is used to determine the availability of the time- domain resources and/or the frequency -domain resources based on the aforementioned configuration information. Network device.
The availability indication for the frequency domain resources includes a resource availability indication for at least one RB set group, and each resource availability indication for an RB set group includes a resource availability indication for at least one slot's RB set group. The network device according to claim 10 .
The availability indication for the frequency domain resource includes a resource availability indication for at least one slot, the at least one slot having a first slot, and the resource availability indication for the first slot further includes a resource availability indication for at least one RB set group. The network device according to claim 10 .
A relay device having a unit configured to carry out the method described in claim 1.
A network device having a unit configured to carry out the method described in claim 4 .
The relay device according to claim 13 , A wireless communication system having the network device described in claim 14 .
It is a computer program, When the computer program is executed on a computer, the computer program causes the computer to perform the method according to claim 1. Computer program.
It is a computer program, When the computer program is executed on a computer, the computer program causes the computer to execute the method according to claim 4 . Computer program.

Description

This application relates to the field of communications, particularly to wireless communication methods and equipment. With the continuous development of mobile communication technology, spectrum resources are becoming increasingly insufficient. Access network devices will be deployed more densely in the future to improve spectrum utilization. In traditional cellular network architectures, access network devices connect terminal devices to the core network via optical fiber. However, the deployment of optical fiber is costly in many scenarios. Therefore, wireless backhaul links between relay devices and access network devices are used to implement connectivity to the core network by utilizing integrated access and backhaul (IAB) technology, avoiding the high costs caused by the deployment of large amounts of optical fiber. However, in new radio (NR) systems, relay node resource configuration is redundant and complex, resulting in excessive configuration overhead and overhead for dynamically directing resources. Therefore, determining how to configure relay node resources to reduce configuration complexity and signaling overhead is an urgent issue that needs to be addressed. This application provides a wireless communication method and apparatus for configuring relay node resources and reducing resource configuration complexity while reducing signaling overhead. A wireless communication method is provided according to a first embodiment. The method includes receiving first information, the first information comprising instruction information of a first pattern, the first pattern being one of a plurality of patterns, each of which indicates the distribution of at least one resource in the frequency domain, the at least one resource comprising at least one of the following: a first resource, a second resource, and a third resource, the first resource being a reliably available resource, the second resource being an unavailable resource, the availability of the third resource being determined by the first instruction information, the first instruction information being transmitted by a first network device, and the resource distributions indicated by any two patterns being different; and communicating with a second network device and/or a terminal device based on the first pattern. For example, if the first network device does not send the first instruction information regarding the availability of the third resource, the third resource is not available to the DU cell by default. This invention should be understood to apply to a wireless communication system including a relay node. The relay node may be an IAB node, or a terminal device, i.e., a terminal device with wireless relay functionality. The availability of the first, second, and third resources may be configured for cells in the distributed unit (DU) of the first node, or for bandwidth portions (BWP) of the distributed unit of the first node, or for several frequency domain resources of the first node distributed unit DU, such as a frequency domain resource block group (RBG). The first network device is a higher-level node of the first node, and the second network device is a lower-level node of the first node. It should be noted that the first resource may be a hard (H) frequency domain resource indicating a frequency domain resource that is reliably available to the DU cell; the second resource may be a not-available (NA) frequency domain resource indicating a resource that is unavailable to the DU cell but is available to mobile-termination (MT); and the third resource may be a soft (S) frequency domain resource indicating that the availability of the resource to the DU cell must be determined based on instruction information transmitted by the higher-level node. In this embodiment of the present application, after further indication, the availability of S resources may be determined as "available" or "unavailable," or as "available" or "no availability indication." The availability indication may be set for one or more of the three TDD transmission direction settings: uplink, downlink, and flexible. For example, the signaling may indicate that the S uplink resource is indicated as available, while indicating no availability indication for the S downlink and S flexible resources. For example, when at least one resource is a first resource, the first node can communicate with terminal devices and/or lower relay nodes; when at least one resource is a second resource, the first node cannot communicate with terminal devices but can communicate with a first network device; or when at least one resource is a third node, the first node needs to determine, based on instructions from the first network device, whether the third node can be used to communicate with terminal devices and/or lower relay nodes. Communicating with the second network device and/or terminal device based on the first pattern involves determining the resources for communication between