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Radio clock synchronization method, system and medium without central base station

A clock synchronization, wireless clock technology, applied in the field of communication, can solve the problems of synchronization signal loss, low synchronization accuracy, clock out-of-sync, etc.

Active Publication Date: 2018-12-21
昂科信息技术(上海)股份有限公司
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Problems solved by technology

[0003] The synchronization methods currently used include GPS (Global Positioning System, Global Positioning System) / BeiDou synchronization, IEEE1588 network clock synchronization, wireless interface synchronization or a combination of several methods. Stability problems lead to loss of synchronization signal, abnormal synchronization, frequency deviation, resulting in frequency interference, time slot cross-interference and other problems
Therefore, in the existing technology, when synchronizing the clock of the base station to be calibrated, there are problems such as low synchronization accuracy and prone to clock out-of-synchronization after synchronization, which seriously affects user experience

Method used

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  • Radio clock synchronization method, system and medium without central base station
  • Radio clock synchronization method, system and medium without central base station
  • Radio clock synchronization method, system and medium without central base station

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Embodiment 1

[0115] A wireless network system can have multiple clock-synchronized wireless network base station domains (hereinafter referred to as "base station domains"). A base station domain has n base stations, 1≤n≤N, and N is a clock synchronization beacon distributed on a communication channel. The maximum number of time slices available for real-time communication. The base stations in a base station domain are either independent (when n=1) or adjacent to other base stations (when n>1), and adjacent base stations may be adjacent to other base stations. By analogy, a base station domain can be composed of 1 independent A base station or multiple base stations that are directly or indirectly adjacent to each other, such as figure 1 shown.

[0116] One base station is adjacent to another base station means that the base station can receive the clock synchronization beacon of another base station and can correctly extract the information in the clock synchronization beacon. Therefore...

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Abstract

The invention provides a wireless clock synchronization method without a central base station, a system and a medium, comprising the following steps: a base station domain dividing step: dividing eachbase station to obtain a divided base station domain; base station domain clock synchronization step: according to the divided base station domain, clock synchronization parameters corresponding to each base station in the base station domain are allocated to synchronize clock information of each base station in the base station domain. The invention can realize precise synchronization of clocksbetween base stations in a Tsync time period. The invention can solve the problems of low synchronization precision and clock out-of-step after synchronization and the like existing in the prior art.The invention can realize the dynamic division of the base station domain, and solve the problems of dynamic discrimination, decomposition and combination of the smallest base station domain when thebase station is dynamically increased, decreased or moved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a wireless clock synchronization method, system and medium of a centerless base station. Background technique [0002] The base station synchronization in the prior art mostly adopts the GPS synchronization method, and each base station realizes the clock synchronization between the base stations by connecting the GPS signal. [0003] The synchronization methods currently used include GPS (Global Positioning System, Global Positioning System) / BeiDou synchronization, IEEE1588 network clock synchronization, wireless interface synchronization, or different combinations of several methods. Stability problems lead to loss of synchronization signals, abnormal synchronization, and frequency deviations, which lead to frequency interference, time slot cross-interference and other problems. Therefore, in the prior art, when synchronizing the clock of the base station to be calibrated, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04W56/00
CPCH04J3/0638H04W56/001
Inventor 孙东辉
Owner 昂科信息技术(上海)股份有限公司
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