Granted Patent B2

US 12,463,939 · App. 18/772,988 · Granted Nov 4, 2025

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

Assignee: InterDigital Patent Holdings, Inc.

H04L61/5046H04W12/08H04W76/14H04W88/04

Abstract

Claims (18)

1 . A first wireless transmit/receive unit (WTRU) comprising:

a transceiver; and

a processor configured to:

send, via the transceiver, a direct communication request (DCR) message to a second WTRU;

receive, via the transceiver, a direct communication accept (DCA) message from the second WTRU, wherein the DCA message comprises an indication of a medium access control (MAC) address of the second WTRU;

detect that the MAC address of the second WTRU is not unique;

send, via the transceiver, a link modification (LM) request message to the second WTRU, wherein the LM request message assigns a new MAC address to the second WTRU; and

receive, via the transceiver, an LM response message from the second WTRU, wherein the LM response message acknowledges receipt of the newly assigned MAC address for the second WTRU.

2 . The first WTRU of claim 1 , the processor further configured to establish a secure link with the second WTRU.

3 . The first WTRU of claim 2 , wherein the secure link is a PC5 link.

4 . A method performed by a first wireless transmit/receive unit (WTRU), the method comprising:

sending a direct communication request (DCR) message to a second WTRU;

receiving a direct communication accept (DCA) message from the second WTRU, wherein the DCA message comprises an indication of a medium access control (MAC) address of the second WTRU;

detecting that a MAC address conflict associated with the MAC address of the second WTRU is not unique; and

sending a link modification (LM) request message to the second WTRU, wherein the LM request message assigns a new MAC address to the second WTRU; and

receiving an LM response message from the second WTRU, wherein the LM response message acknowledges receipt of the newly assigned MAC address for the second WTRU.

5 . The method of claim 4 , further comprising establishing a secure link with the second WTRU.

6 . The method of claim 5 , wherein the secure link is a PC5 link.

Assignments (1)

Continuity (2)

References Cited (58)