Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Noriyuki Maeda0
Hiroyuki Atarashi0
Mamoru Sawahashi0
Date of Patent
July 8, 2008
Patent Application Number
11041231
Date Filed
January 25, 2005
Patent Primary Examiner
Patent abstract
A transmitter used in a wireless communication system based on an orthogonal frequency division multiplexing (OFDM) scheme includes a determination unit that determines a spreading factor and an amplitude for a control channel based on at least one of signal quality information and interference information in data transmission. The transmitter also includes a multiplexing unit that multiplexes a data channel with the control channel having been code-spread based on the spreading factor and the amplitude. A modulator then modulates the multiplexed signal in the OFDM scheme for transmission as OFDM symbols.
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