A method and system for adaptively adjusting base station time delay

Abstract

The invention discloses a system for adaptively adjusting the time delay of a base station, which includes a base station, and a relay coverage system connected to the base station through a radio frequency module, and the relay coverage system includes: optical division access equipment, optical division extension The equipment and at least one optical branch remote device set an SCTP link between the base station and the optical branch access device; the optical branch access device is used to send the delay information of the relay coverage system to the base station through the SCTP link; The base station is used to adjust the frame start time point of the radio frequency signal output by the base station through the radio frequency module after receiving the delay information. The invention also discloses a corresponding realization method. By implementing the present invention, the relay coverage system signal can be synchronized with the wireless signal of the surrounding base stations. It solves the delay interference, optimizes the handover success rate and connection delay index, and improves the user experience.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and system for adaptively adjusting time delay of a base station. Background technique [0002] There are many ways of signal coverage in the mobile communication system. One is to directly cover the radio frequency signal output by the base station, and the other is to use the radio frequency signal of the base station as the signal source and use relay equipment to expand the coverage to provide the cost performance of the overall coverage system. In the first case, base stations are synchronized through multiple methods such as GPS, 1588, and air interface. There is strict synchronization, and interference control, handover, and connection delay indicators are easy to control. The wireless signals of each cell in the coverage area are approximately completely synchronized, and there is basically no interference problem caused by time delay difference. [0...

AI Technical Summary

Problems solved by technology

If the delay is not adjusted, the coverage system of this cell will inevitably fail to synchronize with the signals of surrounding cells.

Out-of-synchronization will lead to delay interference in overlapping coverage areas between the local cell and surrounding base stations, low handover success rate, and large connection delay.

Affect mobile user service experience and perception

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