Title:
異なる偏波をもつ複数のアンテナを使用するための方法及び装置
Document Type and Number:
Japanese Patent JP5852186
Kind Code:
B2
Abstract:
A MIMO wireless communications device supports a dual polarized mode of antenna operation and a single polarized mode of antenna operation. Antenna mode selection is performed as a function of signal to noise ratio information and/or rank information corresponding to a communications channel matrix. One of a communications device's processing chains is switched between first and second polarization orientation antennas, e.g., vertical and horizontally polarized antennas, as a function of the antenna mode selection. In various embodiments, the dual polarized mode is advantageously used for high SNR users, while in the low SNR regime, where the capacity is limited by received power, the single polarized antenna configuration, sometimes referred to as the spatial MIMO configuration, is used.
Inventors:
Bikram Earl. Unlady
Shin Woo
Rajiv Laroya
Shin Woo
Rajiv Laroya
Application Number:
JP2014143396A
Publication Date:
February 03, 2016
Filing Date:
July 11, 2014
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04J99/00; H04B7/06; H04B7/08; H04B7/10; H04J11/00
Domestic Patent References:
| JP2009033268A | ||||
| JP2007214758A | ||||
| JP2004080353A | ||||
| JP2004312381A | ||||
| JP2002290148A | ||||
| JP2007221242A |
Foreign References:
| WO2006055267A1 |
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi