Title:
選択チャネル反転を使用するマルチチャネル通信システムにおける送信用のデータを処理するための方法および装置
Document Type and Number:
Japanese Patent JP2004531976
Kind Code:
A
Abstract:
Techniques to process data for transmission over multiple transmission channels. The available transmission channels are segregated into one or more groups, and the channels in each group are selected for use for data transmission. Data for each group is coded and modulated based on a particular coding and modulation scheme to provide modulation symbols, and the modulation symbols for each selected channel are weighted based on an assigned weight. The weighting "inverts" the selected channels such that they achieve similar received SNRs. With selective channel inversion, only "good" channels in each group having SNRs at or above a particular threshold are selected, "bad" channels are not used, and the total available transmit power for the group is distributed across the good channels in the group. Improved performance is achieved by using only good channels in each group and matching each selected channel's received SNR to the required SNR.
Inventors:
Ketchum, John W
Walton, Jay Rod
Walton, Jay Rod
Application Number:
JP2003506117A
Publication Date:
October 14, 2004
Filing Date:
June 13, 2002
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04J99/00; H04B7/005; H04B7/04; H04B7/06; H04B7/26; H04J11/00; H04L1/00; H04L1/06; H04L5/06; H04L25/03; H04L27/26; (IPC1-7): H04J15/00; H04B7/04; H04J11/00
Domestic Patent References:
| JPH10247955A | 1998-09-14 | |||
| JPH11355373A | 1999-12-24 | |||
| JPH08274687A | 1996-10-18 |
Foreign References:
| WO1999040689A1 | 1999-08-12 |
Other References:
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPNX007034265, 1 December 2000 (2000-12-01), US, pages 1094 - 1096, ISSN: 0000867776
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, JPNX007034266, 6 March 1998 (1998-03-06), JP, pages 378 - 98, ISSN: 0000867777
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPN6008036515, 1 December 2000 (2000-12-01), US, pages 1094 - 1096, ISSN: 0001093683
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, JPN6008036517, 6 March 1998 (1998-03-06), JP, pages 378 - 98, ISSN: 0001093684
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPNX007034267, 1 December 2000 (2000-12-01), pages 1094 - 1096, ISSN: 0000867778
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPN6008035490, 1 December 2000 (2000-12-01), US, pages 1094 - 1096, ISSN: 0001334119
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, vol. p.378, JPN6008035492, 6 March 1998 (1998-03-06), JP, pages 1 - 5, ISSN: 0001334120
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, JPNX007034266, 6 March 1998 (1998-03-06), JP, pages 378 - 98, ISSN: 0000867777
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPN6008036515, 1 December 2000 (2000-12-01), US, pages 1094 - 1096, ISSN: 0001093683
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, JPN6008036517, 6 March 1998 (1998-03-06), JP, pages 378 - 98, ISSN: 0001093684
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPNX007034267, 1 December 2000 (2000-12-01), pages 1094 - 1096, ISSN: 0000867778
CATREUX, S. DRIESSEN, P.F. GREENSTEIN, L.J.: "Simulation results for an interference-limited multiple input multiple output cellular system", IN: GLOBAL TELECOMMUNICATIONS CONFERENCE, 2000. GLOBECOM '00. IEEE, vol. 2, JPN6008035490, 1 December 2000 (2000-12-01), US, pages 1094 - 1096, ISSN: 0001334119
井上裕二・岡田 実・小牧省三: "ＯＦＤＭを用いた空間分割多重伝送方式", １９９８年電子情報通信学会総合大会講演論文集 通信１, vol. p.378, JPN6008035492, 6 March 1998 (1998-03-06), JP, pages 1 - 5, ISSN: 0001334120
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto