Method, system and apparatus for synchronization of home base station

A technology of home base station and macro base station, applied in the field of home base station synchronization method, system and equipment, can solve the problem that HNB and macro base station cannot be synchronized, and achieve the effect of reducing system interference

Active Publication Date: 2010-06-23
DATANG MOBILE COMM EQUIP CO LTD
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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

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  • Method, system and apparatus for synchronization of home base station
  • Method, system and apparatus for synchronization of home base station
  • Method, system and apparatus for synchronization of home base station

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Embodiment Construction

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0070] In the present invention, HNB first listens to the downlink DwPTS (downlink pilot time slot) of the macro base station when starting to work, and obtains the downlink synchronization delay time between the macro base station and the home base station; then on the UpPTS (uplink pilot time slot) according to Downlink synchronization delay time The uplink synchronization information is sent in the open loop of the UpPCH (uplink synchronization channel). ) sends...

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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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Application Information

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IPC IPC(8): H04W56/00H04W52/20
Inventor 王晓鹿何剑蔡月民
Owner DATANG MOBILE COMM EQUIP CO LTD
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