| 摘要 |
PROBLEM TO BE SOLVED: To achieve transmit and/or receive diversity using multiple antennas. SOLUTION: A single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas 312. At any given time, a controllable switching module 310 couples the single transmitter chain to one of the plurality of transmit antennas. With the passage of time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based on predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled, respectively, to a different transmit antenna. Information which is to be transmitted is mapped to a plurality of tones. COPYRIGHT: (C)2011,JPO&INPIT |
