Invention Grant
- Patent Title: Method and apparatus for synchronizing mobile station media flows during a collaborative session
- Patent Title (中): 用于在协作会话期间同步移动台媒体流的方法和装置
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Application No.: US13370028Application Date: 2012-02-09
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Publication No.: US09014170B2Publication Date: 2015-04-21
- Inventor: Xavier De Foy , Milan Patel , Kamel M. Shaheen , Debashish Purkayastha , Osama Lotfallah , Hang Liu
- Applicant: Xavier De Foy , Milan Patel , Kamel M. Shaheen , Debashish Purkayastha , Osama Lotfallah , Hang Liu
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee: InterDigital Patent Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- Main IPC: H04W56/00
- IPC: H04W56/00 ; H04L29/06 ; H04L29/08
Abstract:
A method and apparatus are described for synchronizing mobile station (i.e., wireless transmit/receive unit (WTRU)) media flows during a collaboration session. Inter-WTRU transfer request messages, flow addition request messages and session update request messages may be exchanged between a plurality of WTRUs and a session continuity control application server (SCC-AS). Each of the messages may include a session description protocol (SDP) attribute line containing time synchronization information (e.g., a presentation time offset (PTO) information element (IE), a media flow group identity (ID) and a synchronization tolerance IE). The SCC-AS may update the time synchronization information and include the updated information in messages it sends to the WTRUs, which may re-synchronize their respective media flows based on the updated time synchronization information.
Public/Granted literature
- US20120236842A1 METHOD AND APPARATUS FOR SYNCHRONIZING MOBILE STATION MEDIA FLOWS DURING A COLLABORATIVE SESSION Public/Granted day:2012-09-20
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