Invention Grant
US07995536B2 Multi-input multi-output (MIMO) for wireless transmitting and receiving stations
有权
用于无线发射和接收站的多输入多输出(MIMO)
- Patent Title: Multi-input multi-output (MIMO) for wireless transmitting and receiving stations
- Patent Title (中): 用于无线发射和接收站的多输入多输出(MIMO)
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Application No.: US11783017Application Date: 2007-04-05
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Publication No.: US07995536B2Publication Date: 2011-08-09
- Inventor: Daisuke Ogawa , Takashi Dateki , Hideto Furukawa
- Applicant: Daisuke Ogawa , Takashi Dateki , Hideto Furukawa
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Myers Wolin, LLC.
- Priority: JP2006-126538 20060428
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B7/212

Abstract:
A wireless terminal receives a signal from a first BTS as a communication party and a signal from a second BTS when receiving the signal from the first BTS by using a communication slot that is assigned to the terminal, the terminal comprises receiving antennas; a demodulator unit that estimates channels of received signals, and demodulates the received signals by using the estimation result; and a discriminating unit discriminating the number of transmitting antennas to be used in the first BTS in the communication slot which is assigned to the terminal, in which in the case where the number of channels that are produced between the first BTS and the terminal, which is determined according to the number of transmitting antennas, is smaller than the number of channels that can be estimated by the demodulator unit, the demodulator unit estimates the channel between the terminal and the first BTS by using a signal from the first BTS, and estimates the channel between the terminal and the second BTS by using a signal from the second BTS.
Public/Granted literature
- US20080037409A1 Wireless transmitting station and wireless receiving station Public/Granted day:2008-02-14
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