Radio communication method and device

Patent metadata

Field	Value
Publication number	US-11849436-B2
Application number	US-202117351041-A
Country	US
Kind code	B2
Filing date	Jun 17, 2021
Priority date	Feb 14, 2018
Publication date	Dec 19, 2023
Grant date	Dec 19, 2023

Abstract

Provided in an implementation of the present invention are a radio communication method and device capable of realizing feedback acknowledgement for a downlink channel repeatedly transmitted in a 5G system. The method comprises: a terminal transmitting feedback information at a first time unit, wherein the feedback information comprises feedback acknowledgement information corresponding to a first downlink channel transmitted by means of a target resource set, resource units in the target resource set belong to the same carrier, and repeated transmission of the first downlink channel occupies multiple resource units in the target resource set.

First claim

What is claimed is:

1. A wireless communication method, comprising:
receiving, by a terminal device, a first downlink channel, wherein the first downlink channel is repeatedly transmitted within L resource units in a target resource set, L is a positive integer greater than 1, and the resource units in the target resource set are used for transmitting a downlink channel; and
sending, by the terminal device, feedback information, wherein each group of bits among the L groups of bits comprises N bits, N is equal to 1;
wherein repeatedly transmitting the first downlink channel within the L resource units in the target resource set, comprises:
repeatedly transmitting a transport block carried by the first downlink channel within the L resource units;
wherein a number of bits in the feedback information is equal to a value obtained by rounding up or rounding down the number of resource units in the target resource set divided by L; and
wherein feedback response information corresponding to the first downlink channel occupies one bit group in the feedback information, and an order of the one bit group in the groups of bits comprised in the feedback information is equal to: a value obtained by rounding up P divided by L, where P is equal to a number of the last resource unit occupied by the first downlink channel in the target resource set, and P is a positive integer.

2. The method according to claim 1 , wherein one resource unit in the target resource set corresponds to one group of bits in the feedback information.

3. The method according to claim 1 , wherein positions of the L groups of bits in the feedback information are determined according to the L resource units for the first downlink channel.

4. The method according to claim 1 , wherein the target resource set is determined according to a higher layer parameter.

5. A wireless communication method, comprising:
sending, by a network device, a first downlink channel to a terminal device, wherein the first downlink channel is repeatedly transmitted within L resource units in a target resource set, L is a positive integer greater than 1, and the resource units in the target resource set are used for transmitting a downlink channel; and
receiving, by the network device, feedback information from the terminal device, wherein each group of bits among the L groups of bits comprises N bits, N is equal to 1;
wherein repeatedly transmitting of the first downlink channel within the L resource units in the target resource set, comprises: repeatedly transmitting of a transport block carried by the first downlink channel within the L resource units;
wherein a number of bits in the feedback information is equal to a value obtained by rounding up or rounding down the number of resource units in the target resource set divided by L; and
wherein feedback response information corresponding to the first downlink channel occupies one bit group in the feedback information, and an order of the one bit group in the groups of bits comprised in the feedback information is equal to: a value obtained by rounding up P divided by L, where P is equal to a number of the last resource unit occupied by the first downlink channel in the target resource set, and P is a positive integer.

6. The method according to claim 5 , wherein one resource unit in the target resource set corresponds to one group of bits in the feedback information.

7. The method according to claim 5 , wherein positions of the L groups of bits in the feedback information are determined according to the L resource units for the first downlink channel.

8. The method according to claim 5 , wherein the target resource set is determined according to a higher layer parameter.

9. A terminal device, comprising one or more processors, memory storing a plurality of programs that, when executed by the one or more processors, cause the terminal device to:
receive a first downlink channel, wherein the first downlink channel is repeatedly transmitted within L resource units in a target resource set, L is a positive integer greater than 1, and the resource units in the target resource set are used for transmitting a downlink channel; and
send feedback information, wherein each group of bits among the L groups of bits comprises N bits, N is equal to 1;
wherein a transport block carried by the first downlink channel is repeatedly transmitted within the L resource units;
wherein a number of bits in the feedback information is equal to a value obtained by rounding up or rounding down the number of resource units in the target resource set divided by L; and
wherein feedback response information corresponding to the first downlink channel occupies one bit group in the feedback information, and an order of the one bit group in the groups of bits comprised in the feedback information is equal to: a value obtained by rounding up P divided by L, where P is equal to a number of the last resource unit occupied by the first downlink channel in the target resource set, and P is a positive integer.

10. The terminal device according to claim 9 , wherein one resource unit in the target resource set corresponds to one group of bits in the feedback information.

11. The terminal device according to claim 9 , wherein positions of the L groups of bits in the feedback information are determined according to the L resource units for the first downlink channel.

12. The terminal device according to claim 9 , wherein the target resource set is determined according to a higher layer parameter.

Assignees

• Guangdong Oppo Mobile Telecommunications Corp Ltd

Inventors

• Lin Yanan

Classifications

• H04W72/0446 Primary

  Resources in time domain, e.g. slots or frames · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L1/1812 Primary

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04L1/1861

  Physical mapping arrangements (for ACK signaling see also H04L5/0053) · CPC title

• H04L1/1893

  Physical mapping arrangements (physical resource mapping in general H04L5/00) · CPC title