Handover system and method for minimizing service delay due to pingpong effect in a broadband wireless access communication system
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United States of America Patent
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Jan 20, 2009
Grant Date -
Sep 8, 2005
app pub date -
Mar 7, 2005
filing date -
Mar 5, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
In a BWA communication system, an MSS changes its connection from the serving BS to the target BS, and sends the target BS a report indicating that the MSS will change its connection upon detecting occurrence of a pingpong effect in a process of performing a network re-entry operation with the target BS. The target BS sends the serving BS a notification indicating that the MSS will change its connection. Upon receiving from the MSS a report indicating that it will change its connection to the serving BS, the serving BS allocates a contention-free-based ranging resource to the MSS so that the MSS connects a communication service with the serving BS using the contention-free-based ranging resource, minimizing a service delay.
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