Random access signal transmission method based on single carrier transmission and reception system
A random access signal and random access technology, applied in the transmitter/receiver shaping network, baseband system components, signal channels, etc., can solve the problem of frequent synchronization and asynchronous conversion between the terminal and the base station, Achieve the effect of reducing the message detection rate and ensuring the access probability
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[0044] The single-carrier transmission and reception system is a promising communication system to achieve high spectral efficiency, high peak rate, and low peak-to-average ratio at higher bandwidths. The random access structure and process based on single carrier should flexibly adjust the access preamble of its uplink random access signal and the method of uplink random access signaling to adapt to different working conditions and channel quality.
[0045] Such as figure 1 , 2 , 3, the access preamble of the uplink random access signal is used to provide the receiving end device (base station) for timing synchronization measurement or frequency deviation measurement, so that the transmission time and frequency deviation of subsequent uplink signals can be adjusted, To achieve a good uplink synchronization effect, if the access preamble carries a signature, it can indicate the ID of the access user or the group it belongs to; it can also be used for channel estimation to hel...
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