Terminal synchronization timing control method and device
A technology of synchronizing timing and timing control, applied in synchronizing devices, time division multiplexing systems, electrical components, etc., can solve the problems of timing synchronization adjustment error, unreliable synchronization adjustment amount, TA calculation error, etc., to ensure seamless sexual effect
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[0041] The following embodiments of the present invention propose a synchronous timing control method, which utilizes the guard interval (GP) feature of the frame structure in the time division duplex system (TDD) system, that is, the GP is fixed as the switching point of uplink and downlink, and is continuous The end point of the receive event and the start point of the connection send event. The downlink adjustment downlink timing control is fixed in the GP time slot, and correspondingly, the uplink synchronization timing base value can be controlled according to the downlink synchronization timing adjustment amount.
[0042] Preferably, the adjustment amount of the downlink synchronization timing adopts a multi-subframe (or time slot) in a periodic smoothing manner to eliminate the influence of the instantaneous adjustment amount error caused by multipath, noise, and fading.
[0043] In the context of the present invention, a TDD system may include a TD-SCDMA system, a TD-L...
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