Title:
複数のアンテナにわたるインタリーブされた副搬送波を使用して多入力多出力通信システム内で符号を通信する方法および装置
Document Type and Number:
Japanese Patent JP4685772
Kind Code:
B2
Abstract:
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.
Inventors:
Boer, Jean
Driesn bus
Schenck, tim
Van, zelst, alert
Driesn bus
Schenck, tim
Van, zelst, alert
Application Number:
JP2006517801A
Publication Date:
May 18, 2011
Filing Date:
June 30, 2004
Export Citation:
Assignee:
Agia Systems Incorporated
International Classes:
H04J99/00; H04B7/04; H04J11/00; H04L1/06; H04L27/26; H04L25/02
Foreign References:
| US6473467 | ||||
| WO2003034642A1 |
Other References:
Sumei Sun et. al.,Training sequence assisted channel estimation for MIMO OFDM,IEEE WCNC 2003,2003年 3月16日
Attorney, Agent or Firm:
Okabe
Masao Okabe
Nobuaki Kato
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama
Masao Okabe
Nobuaki Kato
Shinichi Usui
Takao Ochi
Teruhisa Motomiya
Asahi Shinmitsu
Katsumi Miyama