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New patent application published for: HANDLING CONNECTION REJECTS VIA U2U RELAY ASSOCIATED WITH MULTIPLE REQUESTS TO A TARGET WTRU FROM MULTIPLE SOURCE WTRUS

HANDLING CONNECTION REJECTS VIA U2U RELAY ASSOCIATED WITH MULTIPLE REQUESTS TO A TARGET WTRU FROM MULTIPLE SOURCE WTRUS

Abstract

Systems and methods are described herein for handling connection rejects via a wireless transmit/receive unit (WTRU)-to-WTRU (U2U) relay associated with backoff times on behalf of a source end WTRU. A relay WTRU may retry to establish connection with a target WTRU on behalf of a source WTRU, for example, based on receiving a rejection (eg., with a backoff value) from the target WTRU. The source WTRU may associate the reject message to the target WTRU, and the relay WTRU may be available to reach other target WTRUs. The relay WTRU may send a reject message to other source WTRUs (e.g., if the back off duration is active, running) for the same target WTRU.

Inventors:

Sarathchandra; Magurawalage Chathura Madhusanka (London, GB), Perras; Michelle (Montréal, CA), Ferdi; Samir (Kirkland, CA), Abbas; Taimoor (Sainte-Julie, CA), Son; Jung Je (Warrington, PA), Ahmad; Saad (Montreal, CA)

Applicant:

InterDigital Patent Holdings, Inc. (Wilmington, DE)

Family ID:

1000009481618

Assignee:

InterDigital Patent Holdings, Inc. (Wilmington, DE)

Appl. No.:

19/472996

Filed (or PCT Filed):

April 04, 2024

PCT No.:

PCT/US2024/022963

Claims

1.-14. (canceled)
15. A relay wireless transmit/receive unit (WTRU) comprising: a processor configured to: receive a first message from a target WTRU, wherein the first message indicates a rejection associated with a first request to establish a first connection between a first source WTRU and the target WTRU, wherein the first message indicates a back off value associated with the target WTRU; receive a second message from a second source WTRU associated with a second request to establish a second connection between the second source WTRU and the target WTRU using the relay WTRU; and send a third message to the second source WTRU indicating that the target WTRU has rejected the first request to establish the first connection between the first source WTRU and the target WTRU.
16. The relay WTRU of claim 15, wherein the third message is sent to the second source WTRU without the relay WTRU attempting to communicate with the target WTRU.
17. The relay WTRU of claim 15, wherein the processor is further configured to: determine that a duration associated with the back off value has expired; and based on the determination that the duration has expired, send a fourth message to the target WTRU associated with the second request to establish the second connection between the second source WTRU and the target WTRU.
18. The relay WTRU of claim 17, wherein the processor is further configured to: determine a number of retransmissions associated with connection establishment with the target WTRU, wherein the fourth message being sent is further based on a determination that the number of retransmissions associated with connection establishment with the target WTRU is below a threshold.
19. The relay WTRU of claim 17, wherein the fourth message further indicates the first request to establish the first connection between the first source WTRU and the target WTRU.
20. The relay WTRU of claim 17, wherein the processor is further configured to: receive a fifth message from the target WTRU that indicates that the second request to establish the second connection between the second source WTRU and the target WTRU is rejected; determine, based on the fifth message, that a number of retransmissions associated with connection establishment with the target WTRU is equal to or greater than a threshold; and based on the determination that the number of retransmissions associated with connection establishment with the target WTRU is equal to or greater than the threshold, send a reject message to the second source WTRU associated with a pending link establishment connection request.
21. The relay WTRU of claim 15, wherein the third message to the second source WTRU further indicates a cause value that indicates that the target WTRU has previously rejected the request to establish the first connection between the first source WTRU and the target WTRU.
22. A method performed by a relay wireless/transmit receive unit (WTRU), the method: receiving a first message from a target WTRU, wherein the first message indicates a rejection associated with a first request to establish a first connection between a first source WTRU and the target WTRU, wherein the first message indicates a back off value associated with the target WTRU; receiving a second message from a second source WTRU associated with a second request to establish a second connection between the second source WTRU and the target WTRU using the relay WTRU; and sending a third message to the second source WTRU indicating that the target WTRU has rejected the first request to establish the first connection between the first source WTRU and the target WTRU.
23. The method of claim 22, wherein the third message is sent to the second source WTRU without the relay WTRU attempting to communicate with the target WTRU.
24. The method of claim 22, wherein the method further comprises: determining that a duration associated with the back off value has expired; and based on the determination that the duration has expired, sending a fourth message to the target WTRU associated with the second request to establish the second connection between the second source WTRU and the target WTRU.
25. The method of claim 24, wherein the method further comprises: determining a number of retransmissions associated with connection establishment with the target WTRU, wherein the fourth message being sent is further based on a determination that the number of retransmissions associated with connection establishment with the target WTRU is below a threshold.
26. The method of claim 24, wherein the fourth message further indicates the first request to establish the first connection between the first source WTRU and the target WTRU.
27. The method of claim 24, wherein the method further comprises: receiving a fifth message from the target WTRU that indicates that the second request to establish the second connection between the second source WTRU and the target WTRU is rejected; determining, based on the fifth message, that a number of retransmissions associated with connection establishment with the target WTRU is equal to or greater than a threshold; and based on the determination that the number of retransmissions associated with connection establishment with the target WTRU is equal to or greater than the threshold, sending a reject message to the second source WTRU associated with a pending link establishment connection request.
28. The method of claim 22, wherein the third message to the second source WTRU further indicates a cause value that indicates that the target WTRU has previously rejected the request to establish the first connection between the first source WTRU and the target WTRU.

Company
InterDigital Patent Holdings, Inc.
Keywords
H04W76/18