Invention Grant
- Patent Title: Joint transmission using interference alignment
- Patent Title (中): 联合传输使用干扰对准
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Application No.: US14236229Application Date: 2011-08-01
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Publication No.: US09214995B2Publication Date: 2015-12-15
- Inventor: Alireza Bayesteh , Amin Mobasher , Shiguang Guo
- Applicant: Amin Mobasher
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Fish & Richardson P.C.
- International Application: PCT/IB2011/001798 WO 20110801
- International Announcement: WO2013/017902 WO 20130207
- Main IPC: H04B7/04
- IPC: H04B7/04 ; H04B7/06 ; H04L25/02 ; H04L25/03 ; H04W36/20 ; H04L5/00

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
- US20150131751A1 JOINT TRANSMISSION USING INTERFERENCE ALIGNMENT Public/Granted day:2015-05-14
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