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A method and device for synchronization between base stations

A base station synchronization and inter-base station technology, applied in the direction of synchronization devices, wireless communication, access restrictions, etc., can solve the problems of low reliability of base station synchronization, prevent and avoid base station synchronization failures, improve stability, improve reliability and The effect of accuracy

Active Publication Date: 2018-09-21
COMBA TELECOM SYST CHINA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for synchronizing between base stations to overcome the problem of low synchronization reliability of base stations in the related art

Method used

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  • A method and device for synchronization between base stations
  • A method and device for synchronization between base stations
  • A method and device for synchronization between base stations

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Embodiment 1

[0061] Such as figure 2 As shown, taking periodic search and tracking of the synchronization source base station, the synchronization source base station used in the last base station synchronization cannot meet the synchronization conditions, and a new synchronization source base station that meets the synchronization conditions is used as an example to perform base station synchronization. The base station in the embodiment of the present invention The method of inter-synchronization is described in detail, the method includes step 201-step 208:

[0062] Step 201: When the base station is powered on, perform a blind search on the synchronization source base stations operating at each frequency point, and use the base station with the largest RSRP and / or the largest SNR after the blind search as the target for the first base station synchronization after the base station is powered on Sync source base station.

[0063] Step 202: When the search time of the synchronization s...

Embodiment 2

[0073] Taking the synchronization source base station that does not meet the synchronization conditions during the last base station synchronization, and using a new synchronization source base station that meets the synchronization conditions to perform synchronization as an example, the method for synchronizing between base stations in the embodiment of the present invention is described in detail. Such as image 3 As shown, when the synchronization source base station was blocked by buildings and other reasons when the last base station was synchronized, the synchronization source base station A at the last synchronization did not meet the synchronization conditions, but after periodic search, a new base station B was found, and the base station B meets the synchronization conditions. At this time, base station B can be used for synchronization, which avoids the failure of base station synchronization, thereby ensuring that the base station can successfully complete the synchr...

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Abstract

The invention relates to the field of wireless communication, and discloses a synchronization method and device between base stations. The method includes the steps that when the local base station reaches the search time of synchronization source base stations, whether the synchronization source base station meeting the synchronization condition exists in the adjacent base stations or not is judged; if the synchronization source base station meeting the synchronization condition exists, the synchronization source base station meeting the synchronization condition is switched into the target synchronization source base station of the next base station synchronization; when the local base station reaches the synchronization time, the local base station and the target synchronization source base station are synchronized. Through the synchronization method, synchronization failure caused by changes of a synchronization source self or influences of environmental factors can be effectively prevented, and reliability of base station synchronization is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for synchronization between base stations. Background technique [0002] In the existing base station synchronization technology, there are three main synchronization methods: GPS synchronization technology, 1588 protocol synchronization technology and air interface interception synchronization technology. [0003] For GPS synchronization technology, because of its high hardware requirements for the base station, it is rarely used in base station synchronization. For the 1588 protocol synchronization technology, because it requires that the communication network where the base station is located must have the function of supporting the 1588 protocol, it is rarely used in the base station synchronization. For the air interface interception synchronization technology, when the base station is started, it searches the timing information of the neigh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W48/16
CPCH04W56/0015
Inventor 丁宝国梁天永
Owner COMBA TELECOM SYST CHINA LTD
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