Title:
可変拡散率直交周波数・符号分割多重(VSF-OFCDM)システム、そのようなシステム内で受信信号を処理する受信機および方法
Document Type and Number:
Japanese Patent JP4440889
Kind Code:
B2
Abstract:
A variable spreading factor-orthogonal frequency and code division multiplexing (VSF-OFCDM) system and receiver for use therein has a sequence extension remover for removing a predetermined number of chips from the received signal to form a modified signal, and a first converter for converting the modified signal from a serial sequence to a parallel sequence. A despreader is coupled to the first converter for despreading the parallel sequence to derive a group of symbols. An orthogonal transform block, such as a Fast Fourier Transform block is coupled to the despreader to transform the symbols from the time domain to the frequency domain. An equalizer block is coupled to the transform block for equalizing the transformed signal to reduce channel distortion. A deinterleaver block is coupled to the equalizer block to form a deinterleaved signal. The deinterleaved signal is then converted from a parallel sequence to a serial sequence.
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Inventors:
Po Shin Francois Chin
Ray Chong Din
Pen Xiao Ming
Ray Chong Din
Pen Xiao Ming
Application Number:
JP2005512832A
Publication Date:
March 24, 2010
Filing Date:
December 31, 2003
Export Citation:
Assignee:
AGENCY FOR SCIENCE,TECHNOLOGY AND RESEARCH
International Classes:
H04J11/00; H04B1/707; H04L27/26; H04L5/02
Domestic Patent References:
| JP2001320346A | ||||
| JP2003348051A | ||||
| JP2002204217A | ||||
| JP2000078103A | ||||
| JP2000201134A | ||||
| JP8251117A |
Attorney, Agent or Firm:
Mitsuo Tanaka
Kawabata Junichi
Masahiro Ishino
Kawabata Junichi
Masahiro Ishino