Resource selection for device to device discovery or communication

Patent metadata

Field	Value
Publication number	US-12185288-B2
Application number	US-202318394577-A
Country	US
Kind code	B2
Filing date	Dec 22, 2023
Priority date	Jan 29, 2014
Publication date	Dec 31, 2024
Grant date	Dec 31, 2024

Abstract

Systems, methods, and instrumentalities are disclosed to manage interference caused by D2D communications. A wireless transmit receive unit (WTRU) may include a processor. The processor may be configured to perform one or more of the following. The processor may determine to send information using a device-to-device transmission via a resource pool from a plurality of resource pools. Each resource pool may be associated with a range of reference signal receive power (RSRP) values. The processor may determine a RSRP measurement of a cell associated with the WTRU. The processor may select a resource pool from the plurality of resource pools based on the RSRP measurement of the cell. The RSRP measurement of the cell may be within the range of RSRP values associated with the selected resource pool. The processor may send the information using the selected resource pool.

First claim

What is claimed is:

1. A wireless transmit/receive unit (WTRU), comprising:
a processor configured to:
determine a time pattern associated with sidelink communication between the WTRU and another WTRU, wherein the time pattern is determined by the WTRU internally or based on an indication received from a network device;
transmit a message to the other WTRU, wherein the message indicates the time pattern;
select, based on the determined time pattern and from a set of resources provided or pre-configured by the network device for the WTRU, a resource for performing a sidelink transmission to the other WTRU, wherein the resource is selected to conform with the determined time pattern; and
perform the sidelink transmission to the other WTRU using the selected resource.

2. The WTRU of claim 1 , wherein the time pattern indicates a cycle associated with the sidelink communication between the WTRU and the other WTRU.

3. The WTRU of claim 1 , wherein the time pattern indicates one or more time periods for the other WTRU to transmit or receive sidelink transmissions.

4. The WTRU of claim 3 , wherein the resource selected by the WTRU includes a time resource that falls within the one or more time periods.

5. The WTRU of claim 1 , wherein the processor is configured to determine the time pattern based on sidelink configuration information received from the network device.

6. The WTRU of claim 1 , wherein the processor is further configured to receive a grant from the network device that indicates the set of resources.

7. The WTRU of claim 1 , wherein the processor is further configured to receive, from the network device, configuration information regarding a pre-configured resource pool that includes the set of resources.

8. The WTRU of claim 1 , wherein the processor is further configured to receive a message from the other WTRU that indicates a suggested time pattern associated with the sidelink communication between the WTRU and the other WTRU.

9. The WTRU of claim 8 , wherein the processor is configured to determine the time pattern associated with the sidelink communication based on the suggested time pattern.

10. A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:
determining a time pattern associated with sidelink communication between the WTRU and another WTRU, wherein the time pattern is determined by the WTRU internally or based on an indication received from a network device;
transmitting a message to the other WTRU, wherein the message indicates the time pattern;
selecting, based on the determined time pattern and from a set of resources provided or pre-configured by the network device for the WTRU, a resource for performing a sidelink transmission to the other WTRU, wherein the resource is selected to conform with the determined time pattern; and
performing the sidelink transmission to the other WTRU using the selected resource.

11. The method of claim 10 , wherein the time pattern indicates a cycle associated with the sidelink communication between the WTRU and the other WTRU.

12. The method of claim 10 , wherein the time pattern indicates one or more time periods for the other WTRU to transmit or receive sidelink transmissions.

13. The method of claim 12 , wherein the resource selected by the WTRU includes a time resource that falls within the one or more time periods.

14. The method of claim 10 , wherein the time pattern is determined based on sidelink configuration information received by the WTRU from the network device.

15. The method of claim 10 , further comprising receiving a grant from the network device that indicates the set of resources.

16. The method of claim 10 , further comprising receiving, from the network device, configuration information regarding a pre-configured resource pool that includes the set of resources.

17. The method of claim 10 , further comprising receiving a message from the other WTRU that indicates a suggested time pattern associated with the sidelink communication between the WTRU and the other WTRU.

18. The method of claim 17 , wherein the time pattern associated with the sidelink communication is determined further based on the suggested time pattern.

19. A wireless transmit/receive unit (WTRU), comprising:
a processor configured to:
receive a first message from another WTRU, wherein the first message indicates a time pattern associated with sidelink communication between the WTRU and the other WTRU;
send a second message to a network device configured to serve the WTRU, wherein the second message indicates the time pattern indicated in the first message; and
receive a sidelink transmission from the other WTRU in a time period that conforms with the time pattern.

20. The WTRU of claim 19 , wherein the processor is further configured to transmit, to the other WTRU, a third message that indicates a suggested time pattern for the sidelink communication between the WTRU and the other WTRU.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Zhao Yuxin
• Pani Diana
• Pelletier Ghyslain
• Marinier Paul
• Pelletier Benoit
• Kaur Samian

Classifications

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• H04W72/541

  using the level of interference · CPC title

• H04W56/002

  Mutual synchronization · CPC title

• H04W24/10

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

• H04W76/14

  Direct-mode setup · CPC title