Time domain resource indication method in relay network, network device, and user equipment

Patent metadata

Field	Value
Publication number	US-11528710-B2
Application number	US-202016875276-A
Country	US
Kind code	B2
Filing date	May 15, 2020
Priority date	Nov 17, 2017
Publication date	Dec 13, 2022
Grant date	Dec 13, 2022

Abstract

A time domain resource indication method includes sending, by a first node, first time domain resource configuration information to at least one second node. The first time domain resource configuration information is used by the at least one second node to determine second time domain resource configuration information sent by the at least one second node to at least one third node. The first time domain resource configuration information indicates first time domain resources of a link between the first node and the at least one second node. The second time domain resource configuration information indicates second time domain resources of a link between the at least one second node and the at least one third node.

First claim

What is claimed is:

1. A time domain resource indication method, comprising:
processing, by a first node, minimum timing information received from at least one second node to determine an earliest time the at least one second node is available to receive a communication from the first node; and
sending, by the first node, first time domain resource configuration information to the at least one second node at a time ranging from the determined earliest time to a time after the determined earliest time,
wherein
the first time domain resource configuration information is used by the at least one second node to determine second time domain resource configuration information sent by the at least one second node to at least one third node,
the first time domain resource configuration information indicates first time domain resources of a link between the first node and the at least one second node, and
the second time domain resource configuration information indicates second time domain resources of a link between the at least one second node and the at least one third node.

2. The method according to claim 1 , further comprising:
sending, by the first node, indication information to the at least one second node,
wherein the indication information indicates a valid-from time domain indicated by the first time domain resource configuration information.

3. The method according to claim 1 , further comprising:
sending, by the first node, indication information to the at least one second node,
wherein the indication information indicates a last time domain unit indicated by the second time domain resource configuration information is the same as a last time domain unit indicated by the first time domain resource configuration information.

4. The method according to claim 1 , further comprising:
receiving, by the first node, indication information sent by the at least one second node,
wherein the indication information indicates at least some of the second time domain resources.

5. The method according to claim 1 , further comprising:
sending, by the first node, indication information to the at least one second node,
wherein the indication information indicates a time domain in which the at least one second node sends the second time domain resource configuration information to the at least one third node.

6. The method according to claim 5 , wherein the indication information is first indication information and, before the sending the first indication information to the at least one second node, the method further comprises:
receiving, by the first node, second indication information sent by the at least one second node,
wherein
the second indication information comprises capability information of the at least one second node or a capability class of the at least one second node, and
the capability information or the capability class is used by the first node to determine the time domain in which the at least one second node starts to send the second time domain resource configuration information.

7. The method according to claim 1 , further comprising:
determining, based on at least some of the first time domain resources indicated by the first time domain resource configuration information, at least some of the second time domain resources indicated by the second time domain resource configuration information.

8. The method according to claim 7 , wherein the first time domain resources comprise one or more of uplink time domain resources of first used time domain resources, downlink time domain resources of the first used time domain resources, or first unused time domain resources; or
the second time domain resources comprise one or more of uplink time domain resources of second used time domain resources, downlink time domain resources of the second used time domain resources, or second unused time domain resources.

9. The method according to claim 8 , wherein the method further comprises determining one or more of:
uplink time domain resources of at least some of the second time domain resources are the same as at least some of the first unused time domain resources;
uplink time domain resources of at least some of the second time domain resources are the same as downlink time domain resources of at least some of the first used time domain resources;
downlink time domain resources of at least some of the second time domain resources are the same as at least some of the first unused time domain resources; or
downlink time domain resources of at least some of the second time domain resources are the same as uplink time domain resources of at least some of the first used time domain resources.

10. The method according to claim 9 , wherein
the first time domain resources comprise one or more of uplink time domain resources of the first unused time domain resources, or downlink time domain resources of the first unused time domain resources; or
the second time domain resources comprise one or more of uplink time domain resources of the second unused time domain resources, or downlink time domain resources of the second unused time domain resources.

11. The method according to claim 10 , wherein
the uplink time domain resources of the at least some of the second time domain resources are the same as uplink time domain resources of at least some of the first unused time domain resources; or
the downlink time domain resources of the at least some of the second time domain resources are the same as downlink time domain resources of at least some of the first unused time domain resources.

12. A time domain resource indication method, comprising:
sending, by a first node, minimum timing information to a second node to prevent the second node from sending a communication to the first node before an indicated earliest time the first node is available to receive the communication from the second node;
receiving, by the first node, first time domain resource configuration information sent by the second node at a time ranging from the indicated earliest time to a time after the indicated earliest time,
determining, by the first node, second time domain resource configuration information based on the first time domain resource configuration information; and
sending, by the first node, the second time domain resource configuration information to at least one third node, wherein
the first time domain resource configuration information indicates first time domain resources of a link between the second node and the first node, and the second time domain resource configuration information indicates second time domain resources of a link between the first node and the at least one third node.

13. The method according to claim 12 , further comprising:
receiving, by the first node, indication information sent by the second node,
wherein the indication information indicates a valid-from time domain indicated by the first time domain resource configuration information.

14. The method according to claim 12 , further comprising:
receiving, by the first node, indication information sent by the second node,
wherein the indication information indicates a last time domain unit indicated by the second time domain resource configuration information is the same as a last time domain unit indicated by the first time domain resource configuration information.

15. The method according to claim 12 , further comprising:
sending, by the first node, indication information to the second node,
wherein the indication information indicates at least some of the second time domain resources.

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhuo Yibin
• Li Zhongfeng
• Qin Yi

Classifications

• H04W72/53 Primary

  based on regulatory allocation policies · CPC title

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04B7/2606

  Arrangements for base station coverage control, e.g. by using relays in tunnels · CPC title

• H04B7/15542

  Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003) · CPC title