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    • 4. 发明授权
    • Securing a connection in a radio system
    • 保护无线电系统中的连接
    • US07548527B2
    • 2009-06-16
    • US10448466
    • 2003-05-30
    • Jyri HämäläinenEsa Tiirola
    • Jyri HämäläinenEsa Tiirola
    • H04B7/216
    • H04B7/0684H04B7/0602H04B7/0613H04B7/0802H04B7/0837
    • The invention relates to a method and a WCDMA radio system implementing the method wherein a connection between terminal devices and a base transceiver station is ensured by changing the transmission mode of a signal from a beamforming mode to a single antenna mode in a situation wherein calibration of an antenna array of the base transceiver station resides below a threshold value describing the quality of the calibration. The method comprises determining, at the base transceiver station, a calibration quality indicator describing the quality of calibration of the antenna array; checking whether the determined calibration quality indicator resides below a calibration quality threshold value, the calibration quality threshold value being a predetermined value; and switching over to using an antenna element specific transmission when the calibration quality indicator resides below the calibration quality threshold value.
    • 本发明涉及实现这样一种方法的WCDMA无线电系统,其中通过将信号从波束形成模式改变为单天线模式的信号来确保终端设备与基站收发台之间的连接, 基站收发台的天线阵列驻留在描述校准质量的阈值以下。 该方法包括在基地收发台处确定描述天线阵列的校准质量的校准质量指示符; 检查所确定的校准质量指示符是否落在校准质量阈值之下,校准质量阈值是预定值; 并且当校准质量指示符低于校准质量阈值时切换到使用天线元件特定传输。