| 摘要 |
<p>A communications signal repeater apparatus (106, 110, 114, 118) is disclosed which is configured to receive a communications signal from a cable network 105. The communications apparatus is further configured to delay the communications signal by a delay period relative to a delay parameter and configure the delayed communications signal for transmission over a radio communications channel. The delayed communications signal is converted to a radio signal and output to antenna (108, 112, 116, 120) for transmission over the air. The invention lies in private mobile radio communications such as TETRA and contributes synchronization of signals distributed over a cable network. The delay parameter is selected to ensure that the radio signals transmitted from each repeater apparatus are synchronized thereby reducing the likelihood of a mobile terminal operative to receive the radio signals experiencing unacceptable inter-symbol interference.</p> |
