首页>
外国专利>
Paging system capable of calling pagers of different bit rates without deterioration of an efficient use of radio channels
Paging system capable of calling pagers of different bit rates without deterioration of an efficient use of radio channels
展开▼
机译:能够呼叫不同比特率的寻呼机的寻呼系统,而不会降低无线信道的有效使用率
展开▼
页面导航
摘要
著录项
相似文献
摘要
A central station and each base station have a timer indicating time instants coincident with each other. A common transmission start time instant is provided from the central station to each base station so as to match the transmission start time instant to start transmission of the signal frame in each station. The central station makes the call requests of different bit rates contained in one signal frame and broadcasts to each station the transmission start time instant for the signal frame, the order of the call requests within the signal frame, and bit rate switch timings. When the transmission start time instant arrives, the base station reproduces call signals from the call requests in accordance with the designated order. Reproducing clock pulses are switched with reference to the bit rate switch timings sent from the central station. Thus, each station can transmit the call signals of the different bit rates in one signal frame with their phases coincident with each other.
展开▼