Radio communication system, radio base-station apparatus, mobile radio-station apparatus, radio zone assignment method, and radio communication method
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United States of America Patent
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-
Oct 18, 2005
Grant Date -
Feb 7, 2002
app pub date -
Jun 12, 2001
filing date -
Jun 14, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A plurality of frequency-channels are provided, each composed of an OFDM multi-carrier. The OFDM sub-carrier of each channel is orthogonal to the sub-carrier of any other channel, so that two or more channels may be considered to transmit the same OFDM signal. Further, a sub-area that uses two or more channels is provided in each service area in which a base station is located at the center and assigned with a basic-frequency channel.
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