| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and system for handoff in a broadcast communication system. <P>SOLUTION: A subscriber-assisted handoff is impractical in a broadcast communication system due to e.g., a high signaling load or a difficulty to synchronize the broadcast transmission. At the same time, a small number of broadcast channels enable 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 between the broadcast transmissions. To reduce the service disruption, upon detecting a need for handoff, the lower layers inform the application layer of the forthcoming handoff. The application layer thus may take measures to reduce or prevent the disruption. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
