发明授权
- 专利标题: System and method for an improved MBMS to PSS handover
- 专利标题(中): 用于改进的MBMS到PSS切换的系统和方法
-
申请号: US12363642申请日: 2009-01-30
-
公开(公告)号: US08233446B2公开(公告)日: 2012-07-31
- 发明人: Ramakrishna Vedantham , Imed Bouazizi
- 申请人: Ramakrishna Vedantham , Imed Bouazizi
- 申请人地址: FI Espoo
- 专利权人: Nokia Corporation
- 当前专利权人: Nokia Corporation
- 当前专利权人地址: FI Espoo
- 代理机构: Alston & Bird LLP
- 主分类号: H04W4/00
- IPC分类号: H04W4/00
摘要:
A system and method for ensuring an improved transition at the application layer when distribution of media is changed from broadcast/multicast bearers to unicast bearers and vice versa. A mapping is defined between the timeline of a Packet-Switched Streaming Service (PSS) session and the Multimedia Broadcast Multicast Service (MBMS) session timeline. This mapping is used to enable the correct positioning of the stream in a PSS session by a PSS server after a handover has occurred. Broadcast multicast service center (BM-SC) signals can support various options for media playback after a MBMS-PSS handover in a PSS session description protocol (SDP) file or in the MBMS user service description (USD). In response, the client can signal its choice in the RTSP request that is sent when switching to the PSS session.
公开/授权文献
- US20090316615A1 SYSTEM AND METHOD FOR AN IMPROVED MBMS TO PSS HANDOVER 公开/授权日:2009-12-24
信息查询