Title:
直交周波数分割多重化方式に基づく移動通信システムにおける送信装置及び方法
Document Type and Number:
Japanese Patent JP4198157
Kind Code:
B2
Abstract:
A transmitter for a mobile communication system based on an OFDM scheme and a method for controlling the same. The transmitter can implement a characteristic of a multiple access scheme based on an OFDM scheme, a characteristic of a CDMA scheme, and a characteristic of a frequency hopping scheme which has very strong resistance to the frequency selective fading. An apparatus for transmitting information bit sequences from a BS (Base Station) transmitter to different users, includes a plurality of channelizers for dividing a single frame of information bit sequences to be transmitted to individual users into a plurality of times according to a given time interval, simultaneously transmitting the information bit sequences to the individual users within the plurality of division times, dividing the information bit sequences, spreading the divided information bit sequences using different Walsh codes, converting the spread information bit sequences into a single sequence associated with the individual users, and outputting the single sequence; and a frequency hopper for dividing the single sequence, distributing the spread information bit sequences over a plurality of bandwidths capable of mapping-processing the spread information bit sequences with sub-carrier frequencies, and preventing each of the bandwidths from overlapping with time-frequency cells given by the given time interval.
Inventors:
Yong-Kwon Cho
Kaz Marcos Daniel
Sek-Hyun Yun
Don-Sik Park
Seon-Il Park
Ho-kyu Choi
Bread-You Ju
Yeon-Kyun Kim
Hyun-Woo Li
Kaz Marcos Daniel
Sek-Hyun Yun
Don-Sik Park
Seon-Il Park
Ho-kyu Choi
Bread-You Ju
Yeon-Kyun Kim
Hyun-Woo Li
Application Number:
JP2005518277A
Publication Date:
December 17, 2008
Filing Date:
June 19, 2004
Export Citation:
Assignee:
Samsung Electronics Company Limited
International Classes:
H04B1/00; H04B1/713; H04J11/00; H04B7/12; H04B7/204; H04L5/02; H04L27/26
Domestic Patent References:
| JP11017644A | ||||
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Foreign References:
| WO2003021829A1 |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro