下位受信機を備えた多入力多出力通信システム内の後方互換通信の方法および装置

Japanese Patent JP4616256

B2

A method and apparatus are disclosed for transmitting symbols in a multiple antenna wireless communication system, such that the symbols can be interpreted by a lower order receiver (i.e., a receiver having a fewer number of antennas than the transmitter). For example, subcarriers from one or more symbols can be transmitted such that each of the subcarriers are active on only one of the antennas at a given time. In one implementation, the subcarriers are diagonally loaded across logically adjacent antennas. The symbols can include one or more long training symbols and optionally a SIGNAL field that indicates a duration that a receiver should defer until a subsequent transmission. In this manner, a transmitter in accordance with the present invention may be backwards compatible with a lower order receiver and a lower order receiver can interpret the transmitted symbols or defer for an appropriate duration.

Boerre, Jean, Etch.
Driesn bus
Schenck, tim
Van, zelst, alert

JP2006517798A

January 19, 2011

June 30, 2004

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Agia Systems Incorporated

H04J99/00; H04B7/04; H04L1/06; H04L27/26; H04L25/02

JP2002198974A

WO2003034642A1
WO2002099995A1

Myeongcheol Shin, Hakju Lee, Chungyong Lee and Dae Hee Youn,A NEW TRAINING SYMBOL STRUCTURE TO ENHANCE THE PERFORMANCE OF CHANEL ESTIMATION FOR MIMO-OFDM SYSTEMS,Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). 2003 IEEE International Conference on,米国,IEEE,2003年 4月 6日,Vol. IV of VI,pp.IV-397--IV-400
Sumei Sun, Ingo Wiemer, C.K.Ho and T.T.Tjhung,Training Sequence Assisted Channel Estimation for MIMO OFDM,IEEE WCNC 2003,米国,IEEE,2003年 3月16日,pp.38--43

Okabe
Masao Okabe
Nobuaki Kato
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama

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