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

Patent metadata

Field	Value
Publication number	US-2021076374-A1
Application number	US-202017024090-A
Country	US
Kind code	A1
Filing date	Sep 17, 2020
Priority date	Aug 12, 2015
Publication date	Mar 11, 2021
Grant date	—

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 th-n 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 N is 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 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 target channel resource from the channel resource according to a quantity of bits of uplink control information (UCI), wherein a size of the target channel resource is smaller than a size of the channel resource; and sending, by the terminal device, the UCI to the access network device on the 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 channel resource and the size of the target channel resource is k basic channel elements, and wherein k meets R b −(k+1)R 0 ≤R b −kR 0 , R a is the size of the UCI, R b is a channel capacity of the channel resource, R 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 N is 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 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 target channel resource, wherein the target channel resource is in the channel resource and matches a quantity of bits of the UCI, and wherein a size of the target channel resource is smaller than a size of the 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 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.

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 channel resource and the size of the 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 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 N is 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 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 target channel resource from the channel resource according to a quantity of bits of uplink control information (UCI), wherein a size of the target channel resource is smaller than a size of the channel resource; and
a transmitter, the transmitter configured to send the UCI to the access network device on the 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 channel resource and the size of the 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 channel resource, R 0 is a size of a basic channel element, and k is a positive integer.

20 . The terminal device according to claim 19 , wherein the basic channel element is a resource block (RB).

Assignees

• Huawei Tech Co Ltd

Inventors

• Yan Zhiyu
• Guan Lei
• Lyu Yongxia

Classifications

• H04W72/21 Primary

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

• H04L5/0057 Primary

  Physical resource allocation for CQI · CPC title

• H04L1/1657

  Implicit acknowledgement of correct or incorrect reception, e.g. with a moving window · CPC title

• H04L1/08

  by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} · CPC title

• H04L1/0073

  Special arrangements for feedback channel · CPC title