Kile Park Goekjian Reed & McManus PLLC
Transmitting apparatus and method, and receiving apparatus and method in multple antenna system
Respective codewords of quantization codebooks corresponding to a number of data streams are selected based on channel information estimated by a received training symbol. A stream mode is selected among stream modes to determine a modulation method applied to each data stream. The data stream is detected by using the codeword corresponding to the quantization codebook of the data stream corresponding to the selected stream mode as a precode matrix, and the detected data stream is modulated. In this case, a receiving apparatus performs a feedback operation so that indexes of the selected stream mode and the codeword used as the precode matrix may be transmitted to the transmitting apparatus. The transmitting apparatus selects the number of transmitted data streams and the modulation method based on the transmitted index of feedback streams by the feedback operation.
Electronics and Telecommunications Research Institute Industry-Academic Cooperation Foundation, Yonsei University
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H04B H04L H04L
inventional additional additional
Dong-Seung Seung-Joon Chungyong Jong-Ee Myeong-Cheol Young-Seog
Kwon Lee Lee Oh Shin Song