Title:
ＭＩＭＯでの黙示的ビームフォーミングのためのアップリンクトレーニング
Document Type and Number:
Japanese Patent JP5958944
Kind Code:
B2
Abstract:
A first communication device determines that a second communication device is capable of using a transparent implicit beamforming technique to determine steering matrices for transmitting to the first communication device via a forward multiple input multiple output (MIMO) communication channel. In response to determining that the second communication device is capable of using the transparent implicit beamforming technique, the first communication device transmits at least a certain number of data units to the second communication device using a maximum number of spatial streams during a time period of a certain duration when the first communication device is otherwise using less than the maximum number of spatial streams to transmit other data units to the second communication device. Transmitting the certain number of data units using the maximum number of spatial streams permits the second communication device to use the transparent implicit beamforming technique to develop one or more steering matrices.
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Inventors:
Navar, Lohit, You.
Zhang, Hong Yuan
Srinibasa, Sudir
Zen, Xiayu
Zhang, Hong Yuan
Srinibasa, Sudir
Zen, Xiayu
Application Number:
JP2014517005A
Publication Date:
August 02, 2016
Filing Date:
June 07, 2012
Export Citation:
Assignee:
Marvel World Trade Limited
International Classes:
H04J99/00; H04B7/04; H04B7/10
Domestic Patent References:
| JP2011501906A | ||||
| JP2008510381A | ||||
| JP2006135674A | ||||
| JP2011517373A |
Foreign References:
| US7876715 | ||||
| WO2010027865A2 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation