Terminal, network device, and communication method to improve transmission reliability

Patent metadata

Field	Value
Publication number	US-11337189-B2
Application number	US-201916530673-A
Country	US
Kind code	B2
Filing date	Aug 2, 2019
Priority date	Feb 4, 2017
Publication date	May 17, 2022
Grant date	May 17, 2022

Abstract

This application provides a terminal, a network device, and a communication method performed by the terminal and the network device. The communication method includes: The terminal sends first uplink control information by using a plurality of spatial resources in a first spatial resource set, and the network device receives the first uplink control information by using the plurality of spatial resources in the first spatial resource set. According to the terminal, the network device, and the communication method performed by the terminal and the network device provided in this application, when the terminal can transmit uplink control information by using beams, transmission reliability of the uplink control information can be improved, thereby improving communication reliability.

First claim

What is claimed is:

1. A communication method comprising:
receiving, by a terminal, first indication information, wherein the first indication information is used to indicate a plurality of spatial resources in a first spatial resource set, wherein the first indication information comprises quasi-colocated (QCL) information which indicates that a demodulation reference signal (DMRS) port and a sounding reference signal (SRS) port are quasi-colocated with respect to a specific parameter; and
sending, by the terminal, first uplink control information by using the plurality of spatial resources in the first spatial resource set.

2. The communication method according to claim 1 , wherein the sending the first uplink control information comprises:
sending, by the terminal, the first uplink control information in a plurality of time-divided time units by using the plurality of spatial resources in the first spatial resource set.

3. The communication method according to claim 1 , wherein the first uplink control information comprises at least one of the following information: a hybrid automatic repeat request message, rank indicator information, channel quality indicator information, a precoding matrix index, recovery request information, resource identifier information, and reference signal received power.

4. The communication method according to claim 1 , wherein the sending the first uplink control information comprises:
mapping, by the terminal, the first uplink control information onto a time-domain resource based on a resource mapping priority of the first uplink control information.

5. The communication method according to claim 1 , further comprising:
receiving, by the terminal, downlink scheduling information, wherein the downlink scheduling information comprises modulation and coding schemes of a plurality of time units in a first time unit set; and
wherein a spatial resource in the first spatial resource set is a spatial resource used to transmit a first transport block, and a modulation and coding scheme of the first transport block is a modulation and coding scheme in the modulation and coding schemes of the plurality of time units that meets a first condition.

6. The communication method according to claim 1 , wherein the first spatial resource set is a subset of a second spatial resource set, the second spatial resource set comprises a plurality of spatial resources used to send second uplink control information by the terminal, and the second uplink control information and the first uplink control information are different types of information.

7. A communication method comprising:
sending, by a network device to a terminal, first indication information, wherein the first indication information is used to indicate a plurality of spatial resources in a first spatial resource set, wherein the first indication information comprises quasi-colocated (QCL) information which indicates that a demodulation reference signal (DMRS) port and a sounding reference signal (SRS) port are quasi-colocated with respect to a specific parameter; and
receiving, by the network device from the terminal, first uplink control information by using the plurality of spatial resources in the first spatial resource set.

8. The communication method according to claim 7 , wherein the receiving the first uplink control information comprises:
receiving, by the network device, the first uplink control information sent by the terminal in a plurality of time-divided time units by using the plurality of spatial resources in the first spatial resource set.

9. The communication method according to claim 7 , wherein the first uplink control information comprises at least one of the following information: a hybrid automatic repeat request message, rank indicator information, channel quality indicator information, a precoding matrix index, recovery request information, resource identifier information, and reference signal received power.

10. The communication method according to claim 7 , wherein the receiving the first uplink control information comprises:
obtaining, by the network device, the first uplink control information in a time-domain resource based on a resource mapping priority of the first uplink control information.

11. The communication method according to claim 7 , further comprising:
sending, by the network device, downlink scheduling information, wherein the downlink scheduling information comprises modulation and coding schemes of a plurality of time units in a first time unit set; and
wherein a spatial resource in the first spatial resource set is a spatial resource used to transmit a first transport block, and a modulation and coding scheme of the first transport block is a modulation and coding scheme in the modulation and coding schemes of the plurality of time units that meets a first condition.

12. The communication method according to claim 7 , wherein the first spatial resource set is a subset of a second spatial resource set, the second spatial resource set comprises a plurality of spatial resources used to send second uplink control information by the terminal, and the second uplink control information and the first uplink control information are different types of information.

13. A terminal comprising:
a receiver, configured to cooperate with a processor to receive first indication information, wherein the first indication information is used to indicate a plurality of spatial resources in a first spatial resource set, wherein the first indication information comprises quasi-colocated (QCL) information which indicates that a demodulation reference signal (DMRS) port and a sounding reference signal (SRS) port are quasi-colocated with respect to a specific parameter; and
a transmitter, configured to cooperate with the processor to send first uplink control information by using the plurality of spatial resources in the first spatial resource set.

14. The terminal according to claim 13 , wherein the transmitter is further configured to:
send the first uplink control information in a plurality of time-divided time units by using the plurality of spatial resources in the first spatial resource set.

15. The terminal according to claim 13 , wherein the first uplink control information comprises at least one of the following information: a hybrid automatic repeat request message, rank indicator information, channel quality indicator information, a precoding matrix index, recovery request information, resource identifier information, and reference signal received power.

16. The terminal according to claim 13 , further comprising: the processor, configured to map the first uplink control information onto a time-domain resource based on a resource mapping priority of the first uplink control information.

17. The terminal according to claim 13 , further comprising: the receiver, configured to cooperate with a processor to receive downlink scheduling information, wherein the downlink scheduling information comprises modulation and coding schemes of a plurality of time units in a first time unit set; and
wherein a spatial resource in the first spatial resource set is a spatial resource used to transmit a first transport block, and a modulation and coding scheme of the first transport block is a modulation and coding scheme in the modulation and coding schemes of the plurality of time units that meets a first condition.

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Hua
• Li Zhongfeng
• Qin Yi

Classifications

• H04W72/56

  based on priority criteria · CPC title

• 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

• H04B7/06968

  using quasi-colocation [QCL] between signals · CPC title

• H04W72/046

  the resource being in the space domain, e.g. beams · CPC title