US 11,991,562 B2
Multicast and broadcast services (MBS) mobility with service continuity in connected state
Fangli Xu, Beijing (CN); Haijing Hu, Beijing (CN); Naveen Kumar R. Palle Venkata, San Diego, CA (US); Ralf Rossbach, Munich (DE); Sarma V. Vangala, Campbell, CA (US); Sethuraman Gurumoorthy, San Jose, CA (US); Srinivasan Nimmala, San Jose, CA (US); Sudeep Manithara Vamanan, Nuremberg (DE); and Yuqin Chen, Shenzhen (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/438,353
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 29, 2020, PCT No. PCT/CN2020/124829
§ 371(c)(1), (2) Date Sep. 10, 2021,
PCT Pub. No. WO2022/087963, PCT Pub. Date May 5, 2022.
Prior Publication US 2022/0322159 A1, Oct. 6, 2022
Int. Cl. H04W 36/00 (2009.01); H04W 4/06 (2009.01); H04W 36/02 (2009.01); H04W 36/08 (2009.01)
CPC H04W 36/0007 (2018.08) [H04W 4/06 (2013.01); H04W 36/0235 (2023.05); H04W 36/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of performing communications of a Multicast and Broadcast Services (MBS) session, the method comprising:
by a target base station of a wireless communication network:
receiving, from a source base station of the wireless communication network, a request to initiate a handover of the MBS session for a user equipment (UE) from the source base station to the target base station;
receiving an indication of a next protocol data unit (PDU) of the MBS session to be received by the UE; and
transmitting to the UE a peer-to-peer (PTP) message including the next PDU of the MBS session, wherein the next PDU of the MBS session was previously transmitted by the source base station via a peer-to-multiple (PTM) message after the request to initiate the handover.