Invention Grant
- Patent Title: Mixed rank downlink multi-user interference alignment scheme
- Patent Title (中): 混合下行链路多用户干扰对齐方案
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Application No.: US13822661Application Date: 2011-02-01
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Publication No.: US09331765B2Publication Date: 2016-05-03
- Inventor: Amin Mobasher , Alireza Bayesteh , Yongkang Jia
- Applicant: Amin Mobasher , Yongkang Jia
- Applicant Address: CA Waterloo, Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Conley Rose, P.C.
- Agent J. Robert Brown, Jr.
- International Application: PCT/IB2011/050427 WO 20110201
- International Announcement: WO2012/104676 WO 20120809
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/04 ; H04W24/10

Abstract:
A method, system and device are provided for using an indexed list of linearly independent, predetermined vectors Vref={vref1,. . . , vrefM} and channel knowledge H, G from each transmitter to compute and feedback equivalent channel matrix information Hi,jeq to its affiliated transmitter based on the assigned/determined rank of the receiver. With this information, each transmitter selects Li receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network.
Public/Granted literature
- US20140348253A1 MIXED RANK DOWNLINK MULTI-USER INTERFERENCE ALIGNMENT SCHEME Public/Granted day:2014-11-27
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