Uplink control channel sending method, uplink control channel receiving method, and apparatus

Patent metadata

Field	Value
Publication number	US-10863487-B2
Application number	US-201816231558-A
Country	US
Kind code	B2
Filing date	Dec 23, 2018
Priority date	Jun 30, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

Embodiments of the present invention provide an uplink control channel sending method, an uplink control channel receiving method, and an apparatus. The sending method includes: receiving, by terminal device, downlink data from a network device in each subframe in a first subframe set; obtaining, by the terminal device, first downlink control information from the network device; and sending, by the terminal device, a target physical uplink control channel in a first uplink subframe according to an indication of the first downlink control information.

First claim

What is claimed is:

1. A method, implemented by a terminal device, comprising:
receiving downlink data from a network device in each subframe in a first subframe set, wherein the first subframe set comprises N subframes, and N is an integer; and
obtaining first downlink control information from the network device, the first downlink control information comprises first indication information, in response to the first indication information being a first information:
sending a physical uplink control channel in an uplink subframe, wherein the physical uplink control channel comprises hybrid automatic repeat request acknowledgement information corresponding to the downlink data received from the network device in each subframe in the first subframe set, and

adjusting transmit power of the physical uplink control channel based on a first power adjustment value and a second power adjustment value, wherein the first downlink control information further comprises second indication information, the second indication information indicates the first power adjustment value, and wherein the second power adjustment value is indicated by an indication value of a power adjustment field in downlink control information comprised in a first control information group, wherein the first control information group consists of downlink control information corresponding to downlink data in each subframe in a second subframe set, the second subframe set is a set of subframes in the first subframe set that are located on a first carrier, and the first carrier is a carrier on which the physical uplink control channel is located.

2. The method according to claim 1 , wherein a format of the first downlink control information comprises an indication bit of third indication information, the indication bit of third indication information indicates resource block assignment, demodulation reference signal cyclic shift and demodulation reference signal orthogonal code index of the physical uplink control channel.

3. The method according to claim 1 , wherein the first carrier is a carrier in a carrier configuration set, the carrier configuration set is a set of carriers configured for the terminal device to communicate with the network device, the carrier configuration set comprises H carriers, and the first carrier is a G th carrier in the carrier configuration set, wherein both G and H are positive integers, H≥2, 1≤G≤H, and a value of G can vary in all subframes.

4. The method according to claim 1 , wherein M is an integer less than or equal to N, wherein each of the N subframes is a downlink full subframe, or wherein M of the N subframes are downlink partial subframes and N-M of the N subframes are downlink full subframes.

5. The method according to claim 1 , wherein sending a physical uplink control channel in an uplink subframe is in accordance with an indication of the first downlink control information.

6. The method according to claim 1 , wherein the method further comprises sending, in response to the first indication information being second information, a physical uplink shared channel.

7. A method, implemented by a network device, comprising:
sending downlink data to a terminal device in each subframe in a first subframe set, wherein the first subframe set comprises N subframes, and N is an integer;
sending first downlink control information to the terminal device, the first downlink control information includes first indication information; and
receiving, in response to the first indication information being first information, a physical uplink control channel from the terminal device in an uplink subframe, wherein the physical uplink control channel comprises hybrid automatic repeat request acknowledgement information corresponding to the downlink data received from the network device in each subframe in the first subframe set, wherein the first downlink control information further comprises second indication information, the second indication information indicates a first power adjustment value, and transmit power of the physical uplink control channel comprises a power adjustment amount corresponding to the first power adjustment value, wherein the transmit power of the physical uplink control channel further comprises a power adjustment amount corresponding to a second power adjustment value, the second power adjustment value is indicated by an indication value of a power adjustment field in downlink control information comprised in a first control information group, the first control information group consists of downlink control information corresponding to downlink data in each subframe in a second subframe set, and the second subframe set is a set of subframes in the first subframe set that are located on a first carrier, and the first carrier is a carrier on which the physical uplink control channel is located.

8. The method according to claim 7 , wherein a format of the first downlink control information comprises an indication bit of third indication information, the indication bit of third indication information indicates resource block assignment, demodulation reference signal cyclic shift and demodulation reference signal orthogonal code index of the physical uplink control channel.

9. The method according to claim 7 , wherein the first carrier is a carrier in a carrier configuration set, the carrier configuration set is a set of carriers configured for the terminal device to communicate with the network device, the carrier configuration set comprises H carriers, and the first carrier is a G th carrier in the carrier configuration set, wherein both G and H are positive integers, H≥2, 1≤G≤H, and a value of G can vary in all subframes.

10. The method according to claim 7 , wherein M is an integer less than or equal to N, wherein each of the N subframes is a downlink full subframe, or wherein M of the N subframes are downlink partial subframes and N-M of the N subframes are downlink full subframes.

11. A terminal device comprising:
a receiver configured to:
receive downlink data from a network device in each subframe in a first subframe set, wherein the first subframe set comprises N subframes, and N is an integer, and
obtain first downlink control information from the network device, the first downlink control information comprises first indication information; and

a transmitter configured to:
send, in response to the first indication information being first information, a physical uplink control channel in an uplink subframe, wherein the physical uplink control channel comprises hybrid automatic repeat request acknowledgement information corresponding to the downlink data received from the network device in each subframe in the first subframe set, and
adjust transmit power of the physical uplink control channel based on a first power adjustment value and a second power adjustment value, wherein the first downlink control information further comprises second indication information, the second indication information indicates the first power adjustment value, and wherein the second power adjustment value is indicated by an indication value of a power adjustment field in downlink control information comprised in a first control information group, wherein the first control information group consists of downlink control information corresponding to downlink data in each subframe in a second subframe set, the second subframe set is a set of subframes in the first subframe set that are located on a first carrier, and the first carrier is a carrier on which the physical uplink control channel is located.

12. The terminal device according to claim 11 , wherein
in an instance where the first ind

Assignees

• Huawei Tech Co Ltd

Inventors

• Yan Zhiyu
• Guan Lei
• Zheng Juan
• Li Yuan

Classifications

• H04W72/23

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

• H04W72/21 Primary

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

• H04W52/146 Primary

  Uplink power control · CPC title

• H04W52/36

  with a discrete range or set of values, e.g. step size, ramping or offsets · CPC title

• H04W52/325

  Power control of control or pilot channels · CPC title