Methods and apparatus for communication with time-division duplexing
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United States of America Patent
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Sep 6, 2011
Issued Date -
N/A
app pub date -
Apr 29, 2005
filing date -
May 1, 2004
priority date (Note) -
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Abstract
Methods and apparatus for an adaptable frame structure are disclosed, where a transmission frame consists of multiple subframes, each containing a downlink transmission period and an uplink transmission period. A downlink broadcasting signal is used to indicate the configuration of each subframe. The downlink and uplink period configuration in each subframe can be independently adapted to support applications with a variety of traffic patterns, from symmetric to highly asymmetric. A great variety of applications from normal two-way data communications to voice communications and video or data broadcasting can be supported efficiently in a single frequency band, while multiple frequency bands can be used to increase capacity or add more flexibility.
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