Apparatus and method for empty clock synchronization of wireless mobile communication system base station

Abstract

The present invention discloses an air interface clock synchronization device in wireless mobile communication system among base stations, which comprises a receiving circuit and a phase-locked loop circuit. The receiving circuit is used to receive the clock timing reference signal of the neighboring base station from the air interface and send the signal to the phase-locked loop circuit. The phase-locked loop circuit is used to receive the clock timing reference signal and adjust itself basic clock, thus the air interface clock synchronization between itself and the neighboring base station can be realized. The present invention also discloses an air interface clock synchronization method in wireless mobile communication system among base stations. By adopting a simple method to realize the air interface clock synchronization between one basic station and the neighboring base station, the network clock server is no need to use, thus the operation cost of the mobile operating enterprise can be reduced. The invention is helpful to realize new wireless covering means and enrich the content of the wireless network solution.

Description

technical field [0001] The invention relates to the field of wireless mobile communication, in particular to a device and method for air interface clock synchronization between base stations of a wireless mobile communication system. Background technique [0002] Wireless communication faces many problems and challenges in providing broadband data access. Even for the third-generation mobile communication system, when the number of broadband data users increases, the system is unable to provide broadband data services under the premise of ensuring QoS (Quality of Service), and the coverage and capacity cannot meet the satisfaction of mobile operators. The cost has risen sharply, and this problem will become increasingly apparent with the growth of users' demand for broadband data services and the increase in the number of broadband users. Among them, the home environment is often a concentrated area with weak mobile signal coverage; moreover, it is foreseeable that a consid...

AI Technical Summary

Problems solved by technology

The method of clock synchronization through GPS has specific requirements for the placement of GPS antennas, and it will also cause high equipment costs. However, it is currently difficult for Ethernet to provide a high-precision reference clock for large-scale and complex applications.

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