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Methods and equipment for efficient data transmission in half-duplex communication systems with large propagation delays
Methods and equipment for efficient data transmission in half-duplex communication systems with large propagation delays
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机译:具有大传播延迟的半双工通信系统中有效数据传输的方法和设备
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摘要
Methods and apparatus for efficient transmission of data by half-duplex transceivers in satellite communication systems are provided. Time reference for the return link is skewed or time-lagged relative to the time reference for the forward link to reduce the amount of guard time required to separate return link transmission from forward link reception by the half-duplex transceiver of a user terminal. The guard time is determined based on a maximum differential round-trip propagation delay and transition times of the half-duplexer transceiver to switch between transmit and receive modes. In a satellite communication system in which a large number of active user terminals are present in a beam coverage, random time offsets are applied to spread approximately equal traffic loads across the time offsets.
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