Method For Recovering From PDCP HFN De-Synchronization For VoLTE Call And Data Failure In RLC Layer
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United States of America Patent
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Issued Date -
Dec 31, 2015
app pub date -
Jun 30, 2014
filing date -
Jun 30, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method and/or device that determines when an erroneous voice packet has been received over the air interface of a cellular communication network, such as a 4G LTE network, and initiates a voice communications re-establishment procedure when a triggering event—based on receptions of erroneous voice packets—has occurred. The voice communications re-establishment procedure is performed to avoid at least a portion of the air interface (i.e., an uplink or downlink of the Uu interface through which the erroneous voice packets have traversed) from becoming non-operational. The triggering event may be the number of consecutive erroneous voice packets received over an uplink or downlink surpassing a threshold or it may be the length of time that has lapsed during receptions of consecutive erroneous voice packets. The triggering event is an indication that an uplink or downlink will most likely become non-operational if voice communications are not re-established.
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