Method and apparatus for handling sidelink reports

Patent metadata

Field	Value
Publication number	US-12096264-B2
Application number	US-202017594786-A
Country	US
Kind code	B2
Filing date	Mar 31, 2020
Priority date	Apr 30, 2019
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

Various embodiments of the present disclosure provide methods and apparatuses for handling report of channel state information for sidelink. A method performed by a base station comprises receiving, from a first terminal device, at least one report indicating channel state information of at least one sidelink connection associated with the first terminal device.

First claim

What is claimed is:

1. A method performed by a terminal device, the method comprising:
transmitting a scheduling request to a base station for transmission of at least one report, wherein the at least one report indicate channel state information of at least one sidelink connection associated with the terminal device;
receiving from the base station a sidelink grant for the transmission of the at least one report; and
transmitting the at least one report indicating channel state information to another terminal device over the at least one sidelink connection according to the received sidelink grant, wherein the transmitting the at least one report comprises transmitting a medium access control, MAC, control element for the at least one report indicating the channel state information of the at least one sidelink connection to said another terminal device.

2. The method according to claim 1 , wherein the MAC control element for the at least one report indicating channel state information of at least one sidelink connection is generated by multiplexing the at least one report into one or more MAC protocol data units, PDUs.

3. The method according to claim 2 , wherein the multiplexing the at least one report into one or more MAC comprises:
multiplexing the at least one report with MAC data from a logical channel associated with a sidelink connection in one or more MAC PDUs.

4. The method according to claim 1 , before transmitting the at least one report to said another terminal device, further comprising:
performing prioritization to determine whether transmission of the at least one report or transmission of MAC data is to be prioritized over the at least one sidelink connection.

5. The method according to claim 4 , wherein the transmission of the at least one report to said another terminal device is prior to the transmission of the MAC data, in response that the determination of prioritization is to prioritize a logical channel of the at least one report over that of the MAC data.

6. The method according to claim 1 wherein the sidelink grant comprises an identifier of the at least one sidelink connection.

7. The method according to claim 1 , wherein the sidelink grant is carried via downlink control information.

8. A base station comprising:
one or more processors; and
one or more memories comprising computer program codes,
the one or more memories and the computer program codes configured to, with the one or more processors, cause the base station to:
receive, from a first terminal device, a scheduling request for transmitting of at least one report, wherein the at least one report indicate channel state information of at least one sidelink connection associated with the first terminal device;
transmit, a sidelink grant for a transmission of the at least one report; and
receive, from the first terminal device, the at least one report, wherein the one or more memories and the computer program codes are further configured to receive a medium access control, MAC, control element for the at least one report indicating the channel state information of the at least one sidelink connection associated with the first terminal device.

9. The base station according to claim 8 , wherein the sidelink grant comprises an identifier of the at least one sidelink connection.

10. The base station according to claim 8 , wherein the sidelink grant is carried via downlink control information.

11. A terminal device comprising:
one or more processors; and
one or more memories comprising computer program codes, the one or more memories and the computer program codes configured to, with the one or more processors, cause the terminal device to:
transmit a scheduling request to a base station for transmission of at least one report, wherein the at least one report indicate channel state information of at least one sidelink connection associated with the terminal device;
receive from the base station a sidelink grant for the transmission of the at least one report; and
transmit the at least one report indicating channel state information to another terminal device over the at least one sidelink connection according to the received sidelink grant, wherein the one or more memories and the computer program codes are further configured to transmit a medium access control, MAC, control element for the at least one report indicating the channel state information of the at least one sidelink connection to said another terminal device.

12. The terminal device according to claim 11 , wherein the one or more memories and the computer program codes are further configured to: generate the MAC control element for the at least one report indicating channel state information of at least one sidelink connection by multiplexing the at least one report into one or more MAC protocol data units, PDUs.

13. The terminal device according to claim 12 , wherein the one or more memories and the computer program codes are configured to:
multiplex the at least one report with MAC data from a logical channel associated with a sidelink connection in one or more MAC PDUs.

14. The terminal device according to claim 11 , wherein the one or more memories and the computer program codes are further configured to:
before transmitting the at least one report to said another terminal device, perform prioritization to determine whether transmission of the at least one report or transmission of MAC data is to be prioritized over the at least one sidelink connection.

15. The terminal device according to claim 14 , wherein the one or more memories and the computer program codes are configured to:
transmit the at least one report to said another terminal device prior to the transmission of the MAC data, in response that the determination of prioritization is to prioritize a logical channel of the at least one report over that of the MAC data.

16. The terminal device according to claim 11 , wherein the sidelink grant comprises an identifier of the at least one sidelink connection.

17. The terminal device according to claim 11 , wherein the sidelink grant is carried via downlink control information.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Sun Wanlu
• Zhang Congchi
• Zhang Zhang
• Ashraf Shehzad Ali
• Blasco Serrano Ricardo

Classifications

• H04W72/23

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

• H04W72/542

  using measured or perceived quality · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04W76/14 Primary

  Direct-mode setup · CPC title