Uplink control information sending method, uplink control information receiving method, apparatus, and system

Patent metadata

Field	Value
Publication number	US-11558860-B2
Application number	US-202017024090-A
Country	US
Kind code	B2
Filing date	Sep 17, 2020
Priority date	Aug 12, 2015
Publication date	Jan 17, 2023
Grant date	Jan 17, 2023

Abstract

Embodiments of the present invention provide an uplink control information sending method, an uplink control information receiving method, an apparatus, and a system. The method includes: receiving, by a terminal device, channel indication information from an access network device on a physical control channel; determining the channel resource set that is of N channel resource sets and that matches a type or a size of the UCI as a first channel resource set; determining a channel resource that is in the first channel resource set and that is indicated by the channel indication information; and sending uplink control information UCI to the access network device on the channel resource. A quantity of bits that need to be added to the channel indication information in the embodiments of the present invention is less than that in the prior art.

First claim

What is claimed is:

1. A method, comprising:
receiving, by a terminal device, configuration information from an access network device, wherein the configuration information indicates N channel resource sets, and wherein Nis a positive integer greater than or equal to 2;
receiving, by the terminal device, channel indication information from the access network device on a physical control channel, wherein the channel indication information indicates a first target channel resource in a target channel resource set;
determining, by the terminal device, a channel resource set of the N channel resource sets as the target channel resource set;
determining, by the terminal device, a second target channel resource from the first target channel resource according to the quantity of bits of uplink control information (UCI), wherein a size of the second target channel resource is smaller than a size of the first target channel resource; and
sending, by the terminal device, the UCI to the access network device on the second target channel resource.

2. The method according to claim 1 , further comprising:
determining, by the terminal device, the channel resource set of the N channel resource sets as the target channel resource set according to the quantity of bits of the UCI.

3. The method according to claim 2 , wherein the target channel resource set is the i th channel resource set of the N channel resource sets, and wherein R a meets R i−1 <R a ≤R i , 2 i 4, R a is equal to the quantity of bits of the UCI, R i is a channel capacity corresponding to the i th channel resource set, and R i−1 is a channel capacity corresponding to the (i−1) th channel resource set.

4. The method according to claim 1 , wherein:
the UCI comprises channel state information (CSI); or
the UCI comprises CSI and hybrid automatic repeat request-acknowledgment (HARQ-ACK) information; or
the UCI is HARQ-ACK information or CSI.

5. The method according to claim 1 , wherein a difference of the size of the first target channel resource and the size of the second target channel resource is k basic channel elements, and wherein k meets R b −(k+1)R 0 <R a ≤R b −kR 0 , R a is the size of the UCI, R b is a channel capacity of the first target channel resource, R 0 is a size of a basic channel element, and k is a positive integer.

6. The method according to claim 5 , wherein the basic channel element is a resource block (RB).

7. A network device, comprising:
a transmitter, the transmitter configured to:
send configuration information to a terminal device, wherein the configuration information indicates N channel resource sets, and wherein Nis a positive integer greater than or equal to 2; and
send channel indication information to the terminal device on a physical control channel, wherein the channel indication information indicates a first target channel resource in a target channel resource set, and wherein the target channel resource set is one channel resource set in the N channel resource sets; and

a receiver, the receiver configured to receive uplink control information (UCI) from the terminal device on a second target channel resource, wherein the second target channel resource is in the first target channel resource and matches the quantity of bits of the UCI, and wherein a size of the second target channel resource is smaller than a size of the first target channel resource.

8. The network device according to claim 7 , wherein the target channel resource set is in accordance with the quantity of bits of the UCI.

9. The network device according to claim 8 , wherein the target channel resource set is the i t h channel resource set of the N channel resource sets, and wherein R a meets R i−1 <R a ≤R i , 2 i 4, R a is equal to the quantity of bits of the UCI, R i is a channel capacity corresponding to the i t h channel resource set, and R i−1 is a channel capacity corresponding to the (i−1) th channel resource set.

10. The network device according to claim 7 , wherein:
the UCI comprises channel state information (CSI); or
the UCI comprises CSI and hybrid automatic repeat request-acknowledgment (HARQ-ACK) information; or
the UCI is HARQ-ACK information or CSI.

11. The network device according to claim 7 , wherein at least one of the N channel resource sets comprises at least two channel resources with different physical uplink control channel (PUCCH) formats.

12. The network device according to claim 7 , wherein a difference of the size of the first target channel resource and the size of the second target channel resource is k basic channel elements, and wherein k meets R b −(k+1)R 0 <R a ≤R b −kR 0 , R a is the size of the UCI, R b is a channel capacity of the first target channel resource, R 0 is a size of a basic channel element, and k is a positive integer.

13. The network device according to claim 12 , wherein the basic channel element is a resource block (RB).

14. A terminal device, comprising:
a receiver, the receiver configured to:
receive configuration information from an access network device, wherein the configuration information indicates N channel resource sets, and wherein Nis a positive integer greater than or equal to 2; and
receive channel indication information from the access network device on a physical control channel, wherein the channel indication information indicates a first target channel resource in a target channel resource set;

at least one processor, the at least one processor configured to:
determine a channel resource set of the N channel resource sets as the target channel resource set; and
determine a second target channel resource from the first target channel resource according to the quantity of bits of uplink control information (UCI), wherein a size of the second target channel resource is smaller than a size of the first target channel resource; and

a transmitter, the transmitter configured to send the UCI to the access network device on the second target channel resource.

15. The terminal device according to claim 14 , wherein the at least one processor is further configured to:
determine the channel resource set of the N channel resource sets as the target channel resource set according to the quantity of bits of the UCI.

16. The terminal device according to claim 15 , wherein the target channel resource set is the i th channel resource set of the N channel resource sets, and wherein R a meets R i−1 <R a ≤R i , 2 i 4, R a is equal to the quantity of bits of the UCI, R i is a channel capacity corresponding to the i th channel resource set, and R i−1 is a channel capacity corresponding to the (i−1) th channel resource set.

17. The terminal device according to claim 14 , wherein:
the UCI comprises channel state information (CSI); or
the UCI comprises CSI and hybrid automatic repeat request-acknowledgment (HARQ-ACK) information; or
the UCI is HARQ-ACK information or CSI.

18. The terminal device according to claim 14 , wherein at least one of the N channel resource sets comprises at least two channel resources with different physical uplink control channel (PUCCH) formats.

19. The terminal device according to claim 14 , wherein a difference of the size of the first target channel resource and the size of the second target channel resource is k basic channel elements, and wherein k meets R b −(k+1)R 0 <R a ≤R b −kR 0 , R a is the size of the UCI, R b is a channel capacity of the first target channel resource, R 0 is a size of a basic channel element, and k is a positive integer.

Assignees

• Huawei Tech Co Ltd

Inventors

• Yan Zhiyu
• Guan Lei
• Lyu Yongxia

Classifications

• H04W28/26

  Resource reservation · CPC title

• H04L5/0055

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

• H04W72/02

  Selection of wireless resources by user or terminal · CPC title

• H04W72/04

  Wireless resource allocation · CPC title

• H04L5/0094

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