Invention Application
- Patent Title: JOINT TRANSMISSION USING INTERFERENCE ALIGNMENT
- Patent Title (中): 使用干扰对齐的联合传输
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Application No.: US14236229Application Date: 2011-08-01
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Publication No.: US20150131751A1Publication Date: 2015-05-14
- Inventor: Alireza Bayesteh , Amin Mobasher , Shiguang Guo
- Applicant: Alireza Bayesteh , Amin Mobasher , Shiguang Guo
- Applicant Address: CA ON Waterloo
- Assignee: BLACKBERRY LIMITED
- Current Assignee: BLACKBERRY LIMITED
- Current Assignee Address: CA ON Waterloo
- International Application: PCT/IB2011/001798 WO 20110801
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04W36/20

Abstract:
Systems and methods can implemented to joint transmission for interference management in wireless communications. A first transmitter having M antennas can acquire a channel state information (CSI) matrix for each of a plurality of multiple-input-multiple output (MIMO) channels between a first transmitter and a plurality of receivers. The first transmitter can determine transmission ranks, wherein each of the transmission ranks corresponds to a number of one or more data streams to be transmitted from both the first transmitter and a second transmitter to a receiver of the plurality of receivers. A maximum transmission rank may be identified from the determined transmission ranks. Transmit data can be generated that include the one or more data streams to each of the corresponding plurality of receivers. A precoding matrix can be generated for the generated transmit data based, at least in part, on the acquired CSI matrix. The first transmitter can then encode the transmit data using the corresponding generated precoding matrix.
Public/Granted literature
- US09214995B2 Joint transmission using interference alignment Public/Granted day:2015-12-15
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