| 摘要 |
PROBLEM TO BE SOLVED: To efficiently report reception quality information, which is control information, in transmitting the reception quality information by using a channel for data transmission.SOLUTION: In reporting reception quality information with data through a channel used for data transmission, a terminal device reports the reception quality information by using the same spatial multiplexing method as a spatial multiplexing method for the data when the reception quality information is reception quality information reported periodically, and reports the reception quality information by using a spatial multiplexing method independent of the spatial multiplexing method for the data when the reception quality information is reception quality information reported periodically. In extracting the reception quality information reported with the data by the terminal device, a base station device extracts the reception quality information by determining that its spatial multiplexing method is the same spatial multiplexing method as that of the data when the reception quality information is reception quality information reported periodically, and extracts the reception quality information by determining that its spatial multiplexing method is independent of the spatial multiplexing method for the data when the reception quality information is reception quality information reported periodically. |
