DATA TRANSMITTING METHOD, DATA RECEIVING METHOD, DATA TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER

Title:

DATA TRANSMITTING METHOD, DATA RECEIVING METHOD, DATA TRANSMISSION SYSTEM, TRANSMITTER AND RECEIVER

Document Type and Number:

Japanese Patent JP3895745

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To implement excellent communication by realizing excellent level control (AGC) and appropriate level detection even in a transmission line where frequency selective fading occurs, in a data transmitting method, data receiving method, data transmission system, transmitter and receiver.
SOLUTION: In the data transmission system wherein, at the sending end, control data are added to transmission data, modulated by a predetermined modulation scheme and transmitted as transmission signals and at the receiving end, the control data in the transmission signals are used to detect a reception power strength, a random pattern is used for a reception power detection section where the reception power strength is detected, in the control data.

Inventors:

Akinori Hira
Fumio Ishizu
Keiji Murakami

Application Number:

JP2004351834A

Publication Date:

March 22, 2007

Filing Date:

December 03, 2004

Export Citation:

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Assignee:

Mitsubishi Electric Corporation

International Classes:

H03G3/20; H04J3/00; H03G3/30; (IPC1-7): H04J3/00; H03G3/20; H03G3/30

Domestic Patent References:

JP8298682A
JP9149003A
JP61058334A
JP9252273A
JP5037407A
JP6204925A
JP6141048A
JP8307287A
JP10163816A
JP8223231A
JP7095189A
JP8335901A
JP2020927A
JP9223982A
JP9064786A
JP6195877A

Other References:

平明徳他,「周波数選択性フェージング伝送路におけるレベル検出方式」,電子情報通信学会1997年通信ソサイエティ大会講演論文集1,電子情報通信学会,1997年 8月13日,B-5-66
平明徳他,「周波数選択性フェージング伝送路における送信データ系列に対する受信電力特性の検討」,電子情報通信学会技術研究報告,電子情報通信学会,1997年 9月25日,RCS97-111

Attorney, Agent or Firm:

Hiroaki Sakai

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