Carrier activation for data communications
作者： Howard Ray Feldman , Siu Wah Wong
DOI:
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摘要: In a radio frequency communications system, data carrier activation method is implemented such that the switched off when no available for transmission. If repeated signalling information required to be transmitted, only predetermined number of repeats transmitted before off. The input transmission are compared with an idle sequence different bit alignments detect presence , and if match found. When more user received, on frames (SM) in synchronization timing deactivation. After reactivation, constant power preamble (P) may assist level control transmitter (27; 40).
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