Uplink information transmission method, related device, and communications system

Patent metadata

Field	Value
Publication number	US-10911175-B2
Application number	US-201816231556-A
Country	US
Kind code	B2
Filing date	Dec 23, 2018
Priority date	Jun 30, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

Embodiments of the present invention provide an uplink information transmission method, a related device, and a communications system. The method includes: receiving, by a terminal device, uplink scheduling information sent by an access network device; determining, by the terminal device based on aperiodic channel state indication information and modulation and coding indication information that are included in the uplink scheduling information, whether to transmit feedback information on an uplink resource indicated by the uplink scheduling information; and if determining to transmit the feedback information on the uplink resource, transmitting, by the terminal device, the feedback information on the uplink resource.

First claim

What is claimed is:

1. An uplink information transmission method, comprising:
receiving, by a terminal device, uplink scheduling information sent by an access network device;
determining, by the terminal device based on modulation and coding indication information comprised in the uplink scheduling information, whether to transmit uplink data on an uplink resource indicated by the uplink scheduling information;
transmitting, by the terminal device, the uplink data on a physical uplink shared channel indicated by the uplink scheduling information, when it is determined based on the modulation and coding indication information to transmit the uplink data on the uplink resource; and
transmitting, by the terminal device, aperiodic channel state information or feedback information without the uplink data on a physical uplink control channel indicated by the uplink scheduling information, when it is determined based on the modulation and coding indication information not to transmit the uplink data on the uplink resource.

2. The method according to claim 1 , wherein the determining comprises:
when the terminal device determines that an index number corresponding to the modulation and coding indication information comprised in the uplink scheduling information is any value from 0 to 28, determining, by the terminal device, to transmit the uplink data on the physical uplink shared channel; and
when the terminal device determines that the index number corresponding to the modulation and coding indication information comprised in the uplink scheduling information is any value from 29 to 31, determining, by the terminal device, to transmit the aperiodic channel state information or the feedback information on the physical uplink control channel, and not to transmit the uplink data on the physical uplink control channel.

3. The method according to claim 2 , wherein determining to transmit the uplink data on the uplink resource indicated by the uplink scheduling information comprises:
determining, by the terminal device based on aperiodic channel state indication information and feedback indication information that are comprised in the uplink scheduling information, to transmit the uplink data, the uplink data and aperiodic channel state information, the uplink data and feedback information, or the uplink data, aperiodic channel state information, and feedback information on the uplink resource indicated by the uplink scheduling information.

4. The method according to claim 2 , wherein determining not to transmit the uplink data on the uplink resource indicated by the uplink scheduling information comprises:
determining, by the terminal device based on at least one of the modulation and coding indication information, aperiodic channel state indication information, and feedback indication information that are comprised in the uplink scheduling information, to transmit aperiodic channel state information or feedback information on the uplink resource indicated by the uplink scheduling information.

5. The method according to claim 4 , wherein determining not to transmit the uplink data on the uplink resource indicated by the uplink scheduling information comprises:
determining, by the terminal device based on the aperiodic channel state indication information and the feedback indication information that are comprised in the uplink scheduling information, to transmit the aperiodic channel state information or the feedback information on the uplink resource indicated by the uplink scheduling information.

6. The method according to claim 1 , wherein the modulation and coding indication information comprises information to distinguish whether the uplink scheduling information is corresponding to a physical uplink control channel or a physical uplink shared channel.

7. An uplink information transmission method, comprising:
sending, by an access network device, uplink scheduling information to a terminal device, wherein the uplink scheduling information comprises modulation and coding indication information for use by the terminal device to determine whether to transmit uplink data on an uplink resource indicated by the uplink scheduling information; and
receiving, by the access network device, the uplink data transmitted by the terminal device on a physical uplink shared channel indicated by the uplink scheduling information when the modulation and coding indication information indicates the terminal device to transmit the uplink data on the uplink resource indicated by the uplink scheduling information; and
receiving, by the access network device, aperiodic channel state information or feedback information without the uplink data on a physical uplink control channel indicated by the uplink scheduling information, when the modulation and coding indication information does not indicate the terminal device to transmit the uplink data.

8. The method according to claim 7 , wherein:
when an index number corresponding to the modulation and coding indication information included in the uplink scheduling information is any value from 0 to 28, the modulation and coding indication information indicates the terminal device to transmit the uplink data on the physical uplink shared channel; and
when the index number corresponding to the modulation and coding indication information included in the uplink scheduling information is any value from 29 to 31, the modulation and coding indication information indicates the terminal device to transmit the aperiodic channel state information or the feedback information on the physical uplink control channel, and not to transmit the uplink data on the physical uplink control channel.

9. The method according to claim 8 , wherein:
the uplink scheduling information further includes aperiodic channel state indication information and feedback indication information; and
when the index number corresponding to the modulation and coding indication information included in the uplink scheduling information is any value from 0 to 28, the aperiodic channel state indication information and the feedback indication information indicates the terminal device to determine to transmit uplink data, or transmit uplink data and aperiodic channel state information, or transmit uplink data and feedback information, or transmit uplink data, aperiodic channel state information and feedback information, on the uplink resource indicated by the uplink scheduling information.

10. The method according to claim 8 , wherein:
the uplink scheduling information further includes aperiodic channel state indication information and feedback indication information; and
when the index number corresponding to the modulation and coding indication information included in the uplink scheduling information is any value from 29 to 31, at least one of the modulation and coding indication information, the aperiodic channel state indication information, and the feedback indication information is used by the terminal device to determine to transmit aperiodic channel state information or feedback information on the uplink resource indicated by the uplink scheduling information.

11. The method according to claim 10 , wherein the modulation and coding indication information, the aperiodic channel state indication information, and the feedback indication information that are included in the uplink scheduling information are used by the terminal device to determine to transmit the aperiodic channel state information, the feedback information, or the aperiodic channel state information and the feedback information on the uplink resource indicated by the uplink scheduling information.

12. The method according to clai

Assignees

• Huawei Tech Co Ltd

Inventors

• Zheng Juan
• Guan Lei
• Yan Zhiyu

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/21

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

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04W72/23

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

• H04B7/0626

  Channel coefficients, e.g. channel state information [CSI] · CPC title