Transmission reliability and expanding coverage based on sidelink congestion information in a D2D environment

Patent metadata

Field	Value
Publication number	US-11792809-B2
Application number	US-202017108721-A
Country	US
Kind code	B2
Filing date	Dec 1, 2020
Priority date	Jan 27, 2016
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A communication method, a network side device, and a terminal are provided. In the method, a network side device selects one group of values from at least two preset groups of values for a transmission parameter set. The network side device sends the selected group of values. A terminal sends communication data based on the group of values of the at least two groups of values of the transmission parameter set.

First claim

What is claimed is:

1. A communication method, comprising:
determining, by a first communication apparatus, according to sidelink congestion information, a modulation and coding scheme (MCS) level and a quantity of retransmissions, wherein the MCS level and the quantity of retransmissions are comprised in a transmission parameter set; and
sending, by the first communication apparatus, sidelink communication data based on the MCS level and the quantity of retransmissions to a second communication apparatus.

2. The method according to claim 1 , wherein the method further comprises:
measuring a status of a sidelink; and
determining, based on a result of the measuring, the sidelink congestion information.

3. The method according to claim 1 , wherein the method further comprises:
determining, according to the sidelink congestion information and a priority, a group of values for the transmission parameter set, wherein the priority has at least two levels, and each level of the priority corresponds to a respective group of values of the transmission parameter set.

4. The method according to claim 3 , wherein:
the group of values is from at least two groups of values, each group of values of the at least two groups of values comprises a value of each transmission parameter in the transmission parameter set, and at least one transmission parameter in the transmission parameter set has at least two values.

5. The method according to claim 1 , wherein:
the transmission parameter set further comprises a transmit power.

6. A first communication apparatus comprising:
at least one processor when executes instructions cause the first communication apparatus to:
determine, according to sidelink congestion information, a modulation and coding scheme (MCS) level and a quantity of retransmissions, wherein the MCS level and the quantity of retransmissions are comprised in a transmission parameter set; and
send sidelink communication data based on the MCS level and the quantity of retransmissions to a second communication apparatus.

7. The first communication apparatus according to claim 6 , wherein the instructions comprise cause the first communication apparatus to:
measure a status of a sidelink; and
determine, based on a result of measuring the sidelink congestion information.

8. The first communication apparatus according to claim 6 , wherein the instructions cause the first communication apparatus to:
determine, according to the sidelink congestion information and a priority, a group of values for the transmission parameter set, the priority has at least two levels, and each level of the priority corresponds to a respective group of values of the transmission parameter set.

9. The first communication apparatus according to claim 8 , wherein:
the group of values is from at least two groups of values, each group of values of the at least two groups of values comprises a value of each transmission parameter in the transmission parameter set, and at least one transmission parameter in the transmission parameter set has at least two values.

10. The first communication apparatus according to claim 6 , wherein:
the transmission parameter set further comprises a transmit power.

11. The method according to claim 1 , wherein:
a group of values for the transmission parameter set comprise a value for the MCS level.

12. The first communication apparatus according to claim 6 , wherein:
a group of values for the transmission parameter set comprise a value for the MCS level.

13. A non-transitory computer-readable media storing computer instructions that when executed by one or more processors, cause the one or more processors to perform operations comprising:
determining, according to sidelink congestion information, a modulation and coding scheme (MCS) level and a quantity of retransmissions, wherein the MCS level and the quantity of retransmissions are comprised in a transmission parameter set; and
sending sidelink communication data based on the MCS level and the quantity of retransmissions to a second communication apparatus.

14. The non-transitory computer-readable media according to claim 13 , wherein the operations further comprise:
measuring a status of a sidelink; and
determining, based on a result of the measuring, the sidelink congestion information.

15. The non-transitory computer-readable media according to claim 13 , wherein the operations further comprise:
determining, according to the sidelink congestion information and a priority, a group of values for the transmission parameter set, the priority has at least two levels, and each level of the priority corresponds to a respective group of values of the transmission parameter set.

16. The non-transitory computer-readable media according to claim 15 , wherein:
the group of values is from at least two groups of values, each group of values of the at least two groups of values comprises a value of each transmission parameter in the transmission parameter set, and at least one transmission parameter in the transmission parameter set has at least two values.

17. The non-transitory computer-readable media according to claim 13 , wherein:
the transmission parameter set further comprises a transmit power.

18. The non-transitory computer-readable media according to claim 13 , wherein:
a group of values for the transmission parameter set comprise a value for the MCS level.

Assignees

• Huawei Tech Co Ltd

Inventors

• Liu Deping
• Zhao Zhenshan

Classifications

• H04L1/0009

  by adapting the channel coding (H04L1/1812 takes precedence) · CPC title

• H04L1/0003 Primary

  by switching between different modulation schemes · CPC title

• H04W72/23 Primary

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

• H04L1/00

  Arrangements for detecting or preventing errors in the information received {(correcting synchronisation H04L7/00)} · CPC title

• H04L1/0025 Primary

  Transmission of mode-switching indication · CPC title