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1. (WO2017034851) METHOD AND APPARATUS FOR EQUAL ENERGY CODEBOOKS FOR ANTENNA ARRAYS WITH MUTUAL COUPLING

Pub. No.:    WO/2017/034851    International Application No.:    PCT/US2016/047117
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Wed Aug 17 01:59:59 CEST 2016
IPC: H04B 7/04
H01Q 1/52
H01Q 3/26
H04B 7/06
Applicants: MOTOROLA MOBILITY LLC
Inventors: FRANK, Colin
Title: METHOD AND APPARATUS FOR EQUAL ENERGY CODEBOOKS FOR ANTENNA ARRAYS WITH MUTUAL COUPLING
Abstract:
A method and apparatus provide equal energy codebooks for antenna arrays with mutual coupling. A plurality of precoders can be received from a codebook in a transmitter having an antenna array. Each precoder of the plurality of precoders can be transformed using a transformation that maps each precoder to equal radiated power to generate transformed precoders. A signal can be received for transmission. A transformed precoder of the plurality of transformed precoders can be applied to the signal to generate a precoded signal for transmission over a physical channel. The precoded signal can be transmitted.