Reduced time packet transmission in a wireless communications system
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United States of America Patent
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Dec 6, 2011
Grant Date -
Aug 16, 2007
app pub date -
Feb 13, 2006
filing date -
Feb 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
System and method for reducing acquisition time of packets in a FDD system, such as a spread-spectrum or OFDM system. A remote unit transmits a multi-tone packet. The multi-tone packet has a plurality of tones with each tone having a different power level, and at a different frequency, from other tones in the plurality of tones. The base station receives the multi-tone packet. The base station compares the plurality of tones from the received multi-tone packet to a threshold or other selection criteria. A tone is selected from the plurality of tones meeting desired selection criteria. Based on the selected tone, the base station transmits a BS packet with the BS packet having power information from the power level of the selected tone.
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