US9331830B2

5G,4G

Title

Precoder Structure for MIMO Precoding

Application Number:

US201314057011

Publication Date:

03-05-2016

Current Assignee:

Family ID:

Application Date:

18-10-2013

Declaring Company:

Publication Country:

US

Priority Date:

07-04-2010

Title

Precoder Structure for MIMO Precoding

Application Number:

US201314057011

Family ID:

Publication Country:

US

Publication Date:

03-05-2016

Application Date:

18-10-2013

Priority Date:

07-04-2010

Current Assignee:

Declaring Company:

Abstract  Abstract

The teachings herein present a method and apparatus that implement and use a factorized precoder structure that is advantageous in terms of performance and efficiency. In particular the teachings presented herein disclose an underlying precoder structure that allows for full PA utilization. According to this structure an overall precoder is constructed from a conversion precoder and a tuning precoder. The conversion precoder comprises a block diagonal matrix and has 2?k/2? columns where k is a non-negative integer. Each tuning precoder has the following properties: all non-zero elements are constant modulus; every column has exactly two non-zero elements; and every row has exactly two non-zero elements; two columns either have non-zero elements in the same two rows or do not have any non-zero elements in the same rows; and two columns having non-zero elements in the same two rows are orthogonal to each other. If row m in a tuning precoder column has a non-zero element so does row m+?k/2?.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

The information in grey was provided by the patent holder

The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.