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Time tag synchronous method, system and device

A technology of time stamping and synchronization device, which is applied in the direction of synchronization signal speed/phase control, communication between multiple stations, etc. The effect of time stamp synchronization accuracy

Active Publication Date: 2007-10-03
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the synchronization accuracy of this scheme is low, and the error can be as high as a second level. Due to the limitation of the processing capacity of the server, as the number of network elements increases, the error may further increase

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  • Time tag synchronous method, system and device
  • Time tag synchronous method, system and device
  • Time tag synchronous method, system and device

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] Fig. 1 shows the composition schematic diagram of an embodiment of the time tag synchronous system of the present invention, comprises the absolute time synchronizing device 1 that is installed on vehicle instrument and radio network controller (Radio Network Controller, RNC), is installed on RNC and its The relative time counting device 2, the relative time difference calculation device 3, and the time tag synchronization device 4 for obtaining information from the RNC and each wireless base station and performing time tag synchronization on each wireless base station under its jurisdiction.

[0032] The absolute time synchronization device 1 is used to synchronize the absolute time of the on-board instrument and the RNC before collecting basic data, thereby ensuring that the absolute time tag of the RNC is accurate relative to the on-board instrument,...

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Abstract

A method for synchronizing time countermark includes solving out relative time countermark of radio network controller from radio station relative time countermark labeled on basic data and difference of relative time countermark between radio base station and its radio network controller then solving out corresponding absolute time countermark according to relation of radio network controller relative time to absolute time. The system used for realizing said method is also disclosed.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a time tag synchronization method, system and device. Background technique [0002] During the construction of a wireless network, it is necessary to plan the network, and the propagation model is an important content in the network planning. The propagation model generally provides correction functions to ensure that the model is more suitable for the current propagation environment. For model calibration, the underlying propagation data must first be obtained. According to these basic propagation data, the propagation model is corrected by means of adding stations and adjusting network parameters, so as to achieve good wireless coverage. [0003] The continuous wave detection method is a common means to obtain basic propagation data. In order to improve efficiency, vehicle-mounted instruments are usually used to continuously transmit continuous wave signals, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04L7/04
Inventor 周军
Owner XFUSION DIGITAL TECH CO LTD