Apparatus and method for avoiding data loss following an inter-PDSN handoff based on a simple IP network
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United States of America Patent
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Jan 16, 2018
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app pub date -
Jan 3, 2014
filing date -
Jan 3, 2014
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Abstract
The disclosure is related to avoiding data loss following a handoff from a second packet data serving node (PDSN) back to a first PDSN before an expiration of a session inactivity timer at the first PDSN. An aspect includes detecting, by an access terminal, a handoff from the first PDSN to the second PDSN, in response to the detecting, starting, by the access terminal, a session keep timer corresponding to the session inactivity timer, the session inactivity timer indicating a maximum amount of time the first PDSN will maintain an inactive communication session with the access terminal, and, based on whether the session keep timer has expired, transmitting, by the access terminal, a plurality of data packets to a server until an acknowledgment is received from the server.
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