| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for improving a wireless communication link by using an antenna system having a function for transmitting/receiving signals at two or more patterns. SOLUTION: This method uses an antenna system having the function of transmitting/receiving signals at two or more patterns to improve the wireless communication link. When the antenna system is configured by at least two selectable different patterns in the antenna system, one or more signals requiring response are received from a certain apparatus, the pattern of the antenna system is decided based on the signals to be received, and response to the one or more signals requiring response is transmitted at the pattern to be decided. COPYRIGHT: (C)2007,JPO&INPIT
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