Base station apparatus and radio communication method

Multiplex communications – Duplex – Communication over free space

Reexamination Certificate

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Details

C370S208000, C370S294000, C370S337000, C370S347000, C370S436000, C370S442000, C370S458000, C455S101000, C455S127200

Reexamination Certificate

active

07876716

ABSTRACT:
A base station (10) performs bi-directional radio communications with terminal station apparatuses using communication frames each having time slots and being composed of a first region with a predetermined open-loop period and a second region with an open-loop period shorter than the open-loop period of the first region. A level detecting section (21) detects a received level of an uplink slot configured in the second region. A transmission diversity section (14) performs diversity transmission on a downlink transmission signal assigned to a downlink slot corresponding to the uplink slot, corresponding to a result of detection of the received level. It is thereby possible to enhance the effect of improving the received quality due to transmission diversity without degrading the transmission efficiency.

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