Dynamic adjustment and signaling of downlink/uplink allocation ratio in LTE/TDD systems
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United States of America Patent
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Jun 26, 2012
Grant Date -
Oct 1, 2009
app pub date -
Mar 24, 2009
filing date -
Mar 24, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for dynamic adjustment of downlink/uplink resource allocation ratio in a long-term evolution (LTE) time division duplex (TDD) system is disclosed. The method includes replacing at least one of an uplink subframe and a downlink subframe with a mute subframe in a subframe pattern, indicating a first downlink/uplink resource allocation ratio. Thereafter, the mute subframe is replaced with either the uplink subframe or the downlink subframe to form another subframe pattern. The subframe pattern including the mute subframe is obtained from a lookup table, such that the replacing the mute subframe results in the other pattern. A data transmission in accordance with the other subframe pattern, indicating a second downlink/uplink resource allocation ratio, may be scheduled. Hybrid Automatic Repeat-request (HARQ) processing may be implemented after the at least one of the uplink subframe and the downlink subframe is replaced with the mute subframe in the first subframe pattern.
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