- 专利标题: Method and system for hard handoff in a broadcast communication system
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申请号: US11514638申请日: 2006-08-31
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公开(公告)号: US08526394B2公开(公告)日: 2013-09-03
- 发明人: Nikolai K. N. Leung
- 申请人: Nikolai K. N. Leung
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Kevin T. Cheatham
- 主分类号: H04Q7/00
- IPC分类号: H04Q7/00
摘要:
A method and system for a handoff in a broadcast communication system is disclosed. A subscriber-assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load, a difficulty to synchronize the broadcast transmission. On the other hand, the small number of broadcast channels enables the subscriber station to perform the handoff autonomously. While performing a handoff between broadcast transmissions, a disruption of service occurs due to lack of synchronization among the broadcast transmissions. To reduce the service disruption, upon detecting a need for handoff, the lower layers inform the application layer about the forthcoming handoff. The application layer thus may take measures to reduce or prevent the disruption.
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