Wireless communication system
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United States of America Patent
Stats
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Nov 27, 2012
Grant Date -
Aug 2, 2007
app pub date -
Apr 27, 2005
filing date -
Apr 30, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Improvement of transmission efficiency is sought by stopping transmission of unnecessary MLI data.A transmitting circuit 111 in a base station apparatus 110 has an MLI modulation part 248 composed of an MLI generating circuit 238, a symbol modulation circuit 239, and an IFFT circuit 240, a user data modulation part 249 composed of an encoder circuit 234, a symbol modulation circuit 235, a transmission power control circuit 236, and an IFFT circuit 237, and a transmission operation control circuit 113. The transmission operation control circuit 113 controls operation timing of the MLI modulation part 248, the user datamodulationpart 249, and a multiplexer 243 based on a signal to notify that ACK input from a receiving circuit 112 has been received so that slots containing no MLI data are generated.
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