Patent ID: 9236918
Filing Date: 2016-01-12
CPC Classification: H04B,H04L

Claim Text:
1. A MIMO (Multiple Input Multiple Output) transmitting apparatus that transmits a transport block including four or more code blocks each formed with a data sequence, using two transmission streams, the apparatus comprising: an encoding circuitry that forms a codeword by encoding the transport block in code block units; a mapping circuitry that maps the codeword in the two transmission streams in code block unit and changes, between a previous transmission and a current transmission of the transport block, a combination of code blocks in a same transmission zone in a spatial domain by cyclically shifting allocation positions of code blocks within and between the two transmission streams; and an obtaining circuitry that obtains mapping pattern information feedback from a receiving side of the transport block, wherein the mapping circuitry determines a number of shifts based on the mapping pattern information; and the mapping pattern information indicates the number of shifts for the mapping pattern in which there is the largest number of combinations of a code block that are decoded that was successfully decoded and a code block that was unsuccessfully decoded.