The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
Apr. 30, 2024
Apple Inc., Cupertino, CA (US);
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;
Yuqin Chen, Shenzhen, CN;
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are described for improving service continuity for Multicast and Broadcast Services (MBS) communications during handover. Techniques are included for supporting lossless handover and data forwarding during handover for peer-to-multiple (PTM) MBS transmission. Lossless handover may be achieved in part by the user equipment (UE) providing to the target base station an indication of the next packet of the MBS session to be received following an RRC reconfiguration message, and an indication of any MBS packets provided by the source base station prior to the RRC reconfiguration message that were not properly received by the UE. Data forwarding may be performed from the source base station to the target base station if the MBS session was not configured on the target base station prior to the handover. Data forwarding may be omitted if the MBS session was configured on the target base station prior to the handover.