Method, system and apparatus for synchronization of home base station

Abstract

The invention discloses a method for the synchronization of home base station, comprising the step that a home base station simulates terminal behaviour in a state of synchronous acquisition to obtain the synchronization with ambient macro base stations; the method specifically comprises the steps: acquiring a downlink synchronization delay time between a macro base station and an HNB; regulatingthe sending start time from the HNB to an uplink synchronous channel of the macro base station according to the downlink synchronization delay time; receiving a time offset of the uplink synchronous channel sent by the macro base station; and regulating the sending start time from the HNB to a downlink synchronous channel of a user terminal. According to the invention, coarse synchronization is completed through the reception of DwPTS signals by using the HNB, the HNB regulates the sending start time of the uplink synchronous channel according to the downlink synchronization delay time, and the macro base station is indicative of the time offset of the HNB to ultimately ensure precious time synchronous of the HNB and the macro base station, and the DwPTS is transmitted to the user terminal according to the precious synchronization time in order to reduce system interfence.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a synchronization method, system and equipment for home base stations. Background technique [0002] HNB (Home NodeB, home base station) is a scalable, multi-channel, two-way communication device between the macro base station and the user terminal. By integrating the main components of the telecommunications infrastructure as an extension of the base station, it can be used in designated locations such as home or office scenarios. Provide users with a small-scale coverage service to apply to buildings with little or no wired access. [0003] Since the HNB cannot accurately estimate the timing error with the macro base station during its initial operation, it will cause relatively large interference, so the HNB needs to maintain synchronization with the macro base station. Existing synchronization implementation schemes include IEEE 1588 (a precision clock synchro...

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Problems solved by technology

[0004] However, the IEEE 1588V2 synchronization solution requires that HNBs and macro base stations belong to the same operator, and this protocol needs to be deployed on all HNBs and macro base stations. HNBs and macro base stations that do not belong to the same operator cannot be synchronized through this protocol.

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