Title:
MIMOデバイスのための空間分割多重化
Document Type and Number:
Japanese Patent JP2007536770
Kind Code:
A
Abstract:
A communications system, comprising a transmitter and a receiver, are operable to communicate information using a spatial multiplexing method. The transmitter is operable to separate data to be transmitted into two categories, Alamouti encoding the symbols of the first category and transmitting them on an even number of antennae, and not encoding the second category of symbols, but merely using a modulation scheme such as QAM, and transmitting them on one or more further antennae. A corresponding receiver is operable to successively detect signal components received on corresponding spatially displaced antennae, and then to determine an estimated channel response from the signal components. A weighting function is then derived to extract a stream of data from the received signal, which, on the basis that the Alamouti STBC encoded signal will have the highest signal to noise ratio, will normally be the latter, while other data not encoded according to Alamouti is detected thereafter.
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Inventors:
Sun, Yong
Tan, Hwa Shin
Tan, Hwa Shin
Application Number:
JP2006543307A
Publication Date:
December 13, 2007
Filing Date:
May 09, 2005
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H04J99/00; H04B7/02; H04B7/04; H04B7/06; H04B7/08; H04L1/06; H04L1/00
Attorney, Agent or Firm:
Takehiko Suzue
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura