Method for transmitting and receiving precoded signal in MIMO communication system
AssigneeLG Electronics Inc.
InventorsJae Wan Kim, Su Nam Kim, Dong Guk Lim, Bin Chul Imh, Ja Ho Koo
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Abstract
A method for transmitting and receiving a precoded signal in a Multi-Input Multi-Output (MIMO) communication system is provided. In the method, a preceding matrix is selected from a codebook including one or more preceding matrices of each rank, each of the preceding matrices including a unitary matrix modified by an antenna selection element. A signal for transmission is then precoded by applying the selected preceding matrix to the signal for transmission and the precoded signal is transmitted through a selected antenna.
Claims10
A method for transmitting a precoded signal in a Multi-Input Multi-Output (MIMO) communication system, the method comprising:
- selecting a precoding matrix from a codebook including one or more precoding matrices of each rank, each of the precoding matrices including a unitary matrix modified by an antenna selection element;
- precoding a signal for transmission by applying the selected precoding matrix to the signal for transmission;
- and
- transmitting the precoded signal through a selected antenna,
- wherein, in the codebook, a codebook size of rank 1 and rank 2 is larger than a codebook size of rank 3 and rank 4.
A method for receiving a precoded signal in a Multi-Input Multi-Output (MIMO) communication system, the method comprising:
- receiving a precoded signal;
- obtaining precoding matrix information from a codebook including one or more precoding matrices of each rank, each of the precoding matrices including a unitary matrix modified by an antenna selection element;
- and
- decoding the precoded signal based on the precoding matrix information,
- wherein, in the codebook, a codebook size of rank 1 and rank 2 is larger than a codebook size of rank 3 and rank 4.
Dependencies are inferred from the claim text.