Communication method and communications device

Patent metadata

Field	Value
Publication number	US-11626947-B2
Application number	US-202016833152-A
Country	US
Kind code	B2
Filing date	Mar 27, 2020
Priority date	Sep 30, 2017
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A method includes: determining first indication information, where the first indication information indicates a resource location of a second synchronization signal block, and the second synchronization signal block is associated with control information; and sending a first synchronization signal block, where a physical broadcast channel in the first synchronization signal block carries the first indication information.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a terminal device, a first indication information and a third indication information in a first synchronization signal block carried on a physical broadcast channel, wherein the third indication information indicates that the first synchronization signal block is not associated with control information, the first indication information indicating a resource location of a second synchronization signal block, and the second synchronization signal block being associated with the control information; and
receiving, by the terminal device, the second synchronization signal block.

2. The method according to claim 1 , wherein:
the control information is carried on a same time domain resource as the second synchronization signal block; or
the control information is carried on a time domain resource subsequent to the second synchronization signal block in a protocol-specified manner or a predefined manner.

3. The method according to claim 1 , wherein:
resource configuration information of the control information associated with the terminal device is indicated by a physical broadcast channel in the second synchronization signal block.

4. The method according to claim 1 , wherein:
the resource location of the second synchronization signal block comprises an absolute location of the second synchronization signal block in a bandwidth;
the resource location of the second synchronization signal block comprises a relative location of the second synchronization signal block relative to a first intra-frequency signal block; or
the resource location of the second synchronization signal block comprises a resource location of the first synchronization signal block relative to the second synchronization signal block.

5. The method according to claim 1 , wherein:
the first indication information indicates a value of a frequency domain offset between the second synchronization signal block and the first synchronization signal block.

6. The method according to claim 1 , wherein:
the physical broadcast channel comprises a first field, a second field and third field;
the first field is valid in response to the first synchronization signal block being associated with the control information;
the second field is valid in response to the first synchronization signal block not being associated with the control information, and the second field carries the first indication information;
the third field is valid in response to the first synchronization signal block being associated with or in response to the first synchronization signal block not being associated with the control information; and
bits occupied by the first field and the second field on the physical broadcast channel overlap.

7. A method, comprising:
sending, by a network device, a first synchronization signal block, wherein in response to the first synchronization signal block not being associated with control information, the first synchronization signal block carries first indication information and a third indication information on a physical broadcast channel, the third indication information indicates that the first synchronization signal block is not associated with the control information, the first indication information indicating a resource location of a second synchronization signal block, and the second synchronization signal block being associated with the control information; and
sending, by the network device, the second synchronization signal block to a terminal device.

8. The method according to claim 7 , wherein:
the control information is carried a same time domain resource as the second synchronization signal block; or
the control information is carried on a time domain resource subsequent to the second synchronization signal block in a protocol-specified manner or a predefined manner.

9. The method according to claim 7 , wherein:
resource configuration information of the control information associated with the terminal device is indicated by a physical broadcast channel in the second synchronization signal block.

10. The method according to claim 7 , wherein:
the resource location of the second synchronization signal block comprises an absolute location of the second synchronization signal block in a bandwidth;
the resource location of the second synchronization signal block comprises a relative location of the second synchronization signal block relative to a first intra-frequency signal block; or
the resource location of the second synchronization signal block comprises a resource location of the first synchronization signal block relative to the second synchronization signal block.

11. The method according to claim 7 , wherein:
the first indication information indicates a value of a frequency domain offset between the second synchronization signal block and the first synchronization signal block.

12. The method according to claim 7 , wherein:
the physical broadcast channel comprises a first field, a second field and third field;
the first field is valid in response to the first synchronization signal block being associated with the control information;
the second field is valid in response to the first synchronization signal block not being associated with the control information, and the second field carries the first indication information;
the third field is valid in response to the first synchronization signal block being associated with or in response to the first synchronization signal block not being associated with the control information; and
bits occupied by the first field and the second field on the physical broadcast channel overlap.

13. A device, comprising:
a receiver; and
a processor, wherein the processor is configured to control the receiver to perform:
receiving first indication information and a third indication information in a first synchronization signal block carried on a physical broadcast channel, wherein the third indication information indicates that the first synchronization signal block is not associated with control information, the first indication information indicating a resource location of a second synchronization signal block, and the second synchronization signal block being associated with the control information; and
receiving the second synchronization signal block.

14. The device according to claim 13 , wherein:
the control information is carried on a same time domain resource as the second synchronization signal block; or
the control information is carried on a time domain resource subsequent to the second synchronization signal block in a protocol-specified manner or a predefined manner.

15. The device according to claim 13 , wherein:
resource configuration information of the control information associated with the device is indicated by a physical broadcast channel in the second synchronization signal block.

16. The device according to claim 13 , wherein:
the resource location of the second synchronization signal block comprises an absolute location of the second synchronization signal block in a bandwidth;
the resource location of the second synchronization signal block comprises a relative location of the second synchronization signal block relative to a first intra-frequency signal block; or
the resource location of the second synchronization signal block comprises a resource location of the first synchronization signal block relative to the second synchronization signal block.

17. The device according to claim 13 , wherein:
the first indication inform

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Chao
• Feng Shulan
• Wang Junwei
• Wei Jingxin
• Fan Weiwei
• Zhu Jun
• Jia Qiong
• Luo Jun

Classifications

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title

• H04W72/30

  Resource management for broadcast services · CPC title

• H04W72/23

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