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
Life of this patent
Estimating the term…
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.
Claims20
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 communication method of a terminal in a multiple input multiple output (MIMO) communication system comprising:
- generating a network codebook based on information associated with large scale fading from a plurality of base stations to a terminal and a concatenated codebook that is generated from codebooks of the base stations;
- calculating a preferred matrix indicator of the terminal with respect to the network codebook;
- feeding back to at least one of base station the preferred matrix indicator of the terminal with respect to the network codebook.
A communication method of a terminal in a multiple input multiple output (MIMO) communication system comprising:
- generating a network codebook based on information associated with channels from base stations to a terminal and a concatenated codebook that is generated from codebooks of the base stations;
- calculating a preferred matrix indicator of the terminal with respect to the network codebook;
- and
- feeding back to at least one base station the preferred matrix indicator of the terminal with respect to the network codebook.
A terminal in a multiple input multiple output (MIMO) communication system comprising:
- a network codebook design apparatus configured to generate a network codebook based on information associated with large scale fading from a plurality of base stations to a terminal and a concatenated codebook that is generated from codebooks of the base stations,
- wherein the terminal is configured to calculate a preferred matrix indicator of the terminal with respect to the network codebook, and to feed back to at least one of base station the preferred matrix indicator of the terminal with respect to the network codebook.
A terminal using a network codebook, comprising:
- a processor;
- and
- a memory,
- wherein one or more programs are stored in the memory and configured to be executed by the processor, the one or more programs including:
- instructions for 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
- instructions for 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.
Dependencies are inferred from the claim text.