Data packet alignment in a communication system
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United States of America Patent
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-
Dec 7, 1993
Grant Date -
N/A
app pub date -
Sep 27, 1991
filing date -
Sep 27, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A communication system provides data packet timing alignment to facilitate soft handoff. A vocoder (315) transmits compressed voice frames to base-stations (130,131) along links (110,112) of variable length, .DELTA..sub.L. The .DELTA..sub.L translates to a delay .DELTA..sub.t in the air-frames to be transmitted by the base-stations (130,131). To compensate for the time delay .DELTA..sub.t, the communication system advances both sets of air-frames to be transmitted by base-stations (130,131) by at least .DELTA..sub.t so that skipping of frames, relative to an air-frame reference (300), during transmission does not occur.
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