DETECTING UPLINK/DOWNLINK TIME-DIVISION DUPLEXED (TDD) FRAME CONFIGURATIONS TO SYNCHRONIZE TDD DOWNLINK AND UPLINK COMMUNICATIONS BETWEEN TDD COMMUNICATIONS EQUIPMENT
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Feb 22, 2016
filing date -
Aug 29, 2013
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Abstract
Detecting uplink/downlink time-division duplexed (TDD) frame configurations in TDD communications signals to synchronize uplink communications from TDD communications units. In one example, embodiments disclosed herein involve detecting uplink/downlink time-division duplexed (TDD) frame configurations employed in downlink TDD communications signals transmitted from a TDD base station. The TDD base station may be configured to provide TDD communications according to a TDD frame to a distributed antenna system. The detected uplink/downlink TDD frame configuration of the downlink TDD communications signals can be used to determine time periods in the TDD frame when downlink communications transmissions are intended and uplink communications transmissions are intended. In this manner, a TDD distributed communications unit can synchronize transmission circuitry transmitting uplink TDD communications signals to the TDD base station in a different time slot(s) from reception of downlink TDD communication signals from the TDD base station to avoid or reduce data loss.
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