Method of designing codebook for network multiple input multiple output communication system and method of using the codebook
AssigneeSamsung Electronics Co., Ltd.
InventorsYongxing ZHOU, Hua Li, Sung Jin Kim
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Abstract
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.
Claims15
A method of designing a network codebook shared by a plurality of base stations, the method comprising:
- receiving information associated with large scale fading from the plurality of base stations to a terminal;
- designing a second codebook based on the information associated with large scale fading and a pre-defined first codebook;
- and
- designing the network codebook from the second codebook, based on a concatenated codebook that is designed from codebooks of the base stations.
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.
A computer-readable storage medium storing a program to implement a method of designing a network codebook shared by a plurality of base stations, comprising instructions to cause a computer to:
- receive information associated with large scale fading from the plurality of base stations to a terminal;
- design a second codebook based on the information associated with large scale fading and a pre-defined first codebook;
- and
- design the network codebook from the second codebook, based on a concatenated codebook that is designed from codebooks of the base stations.
Dependencies are inferred from the claim text.