Method of designing codebook for network multiple input multiple output communication system and method of using the codebook

摘要

Provided herein is a method of designing a network codebook that may be shared by a plurality of base stations. Also provided herein is a feedback method of a terminal using the network codebook. The network codebook design method may design the network codebook by processing a pre-defined first codebook based on large scale fading of the base stations. The terminal may more effectively feed back a preferred matrix indicator with respect to the network codebook.

主权项

1. A feedback method of a terminal using a network codebook, the method comprising:
feeding back to a first base station a preferred matrix indicator of the terminal with respect to a codebook of the first base station, and a channel quality indicator between the first base station and the terminal; and feeding back to a second base station a preferred matrix indicator of the terminal with respect to a codebook of the second base station, and a preferred matrix indicator of the terminal with respect to the network codebook, wherein the network codebook is shared by the first base station and the second base station.