FINDING CHANNEL STATE INFORMATION WITH REDUCED CODEBOOK IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM

摘要

According to certain embodiments, a method performed by a transmitter to provide a precoder subset to a receiver in a multi-antenna wireless communication system is disclosed. The method includes determining the precoder subset comprising one or more precoder elements, each precoder element being a precoder element of a codebook, and the precoder subset including less than all precoder elements of the codebook. The method further includes providing the precoder subset to the receiver, wherein the codebook is defined for a plurality of ranks. For each rank, the codebook comprises a plurality of precoder elements corresponding to that rank.

主权项

1. A method performed by a transmitter to provide a precoder subset to a receiver in a multi-antenna wireless communication system, the method comprising:
determining the precoder subset comprising one or more precoder elements, each precoder element being a precoder element of a codebook, and the precoder subset including less than all precoder elements of the codebook; and providing the precoder subset to the receiver, wherein the codebook is defined for a plurality of ranks, and wherein for each rank, the codebook comprises a plurality of precoder elements corresponding to that rank.