US 12,413,939 B2
Multicast-broadcast services support for network relay
Xiaoyan Shi, Lake Oswego, OR (US); Behrouz Aghili, Commack, NY (US); Guanzhou Wang, Brossard (CA); Michelle Perras, Montreal (CA); and Saad Ahmad, Montreal (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 18/020,866
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
PCT Filed Aug. 12, 2021, PCT No. PCT/US2021/045697
§ 371(c)(1), (2) Date Feb. 10, 2023,
PCT Pub. No. WO2022/036064, PCT Pub. Date Feb. 17, 2022.
Claims priority of provisional application 63/064,630, filed on Aug. 12, 2020.
Prior Publication US 2023/0308840 A1, Sep. 28, 2023
Int. Cl. H04W 4/06 (2009.01); H04W 4/08 (2009.01); H04W 12/06 (2021.01); H04W 12/63 (2021.01)
CPC H04W 4/08 (2013.01) [H04W 12/06 (2013.01); H04W 12/63 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A first wireless transmit/receive unit (WTRU), the first WTRU comprising:
a processor, wherein the processor is configured to:
receive a provisioning message from a network node, wherein the provisioning message indicates provisioning information for a multicast broadcast service (MBS) and indicates that multicast data associated with the MBS is allowed to be relayed;
determine that the MBS is available for a location based on the provisioning information, wherein the first WTRU is associated with the location;
send a broadcast message to a second WTRU based on a determination that the MBS is available for the location, wherein the broadcast message indicates a multicast group;
receive a multicast request message from the second WTRU, wherein the multicast request message indicates that the second WTRU is requesting to join the multicast group;
determine an identifier for the second WTRU using a connection context associated with the multicast request message; and
send an authorization request to the network node, wherein the authorization request indicates that the second WTRU is requesting to join the multicast group and indicates the determined identifier for the second WTRU.