A gps backup system and method

A backup system and GPS clock technology, applied in the field of GPS backup systems, can solve the problems of limited interference and limited deployment of the sky, and achieve the effects of high reliability, maximum resource utilization, and integration and sharing.

Active Publication Date: 2022-04-08
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The system and method have the advantages of simple implementation, convenient use, low cost, high stability, and strong anti-interference, and effectively solve the problems of limited GPS deployment and limited interference.

Method used

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  • A gps backup system and method
  • A gps backup system and method

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] GPS backup system of the present invention such as figure 1 As shown, the main GPS receiving module, the backup GPS receiving module, the backup switching unit, the GPS timing distribution unit, and the network management center. The GPS receiving module is connected to the backup switching unit through a feeder, and the backup switching unit is connected to the GPS timing distribution unit through a radio frequency cable.

[0044] Among them, the main / standby GPS receiving module is used to receive satellite signals and output corresponding time information and status information. The main GPS receiving module and the standby GPS receiving module have the same structure, mainly including mushroom heads, lightning arresters, feeders, etc. The active / standby GPS receiving modules are respectively connected to the backup switching unit through fee...

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Abstract

The invention discloses a GPS backup system and method, comprising a main GPS receiving module, a backup GPS receiving module, a backup switching unit, a GPS timing distribution unit, a network management center, etc., and the GPS receiving module is connected with the backup switching unit through a radio frequency cable , the backup switching unit is connected with the GPS timing distribution unit through a radio frequency cable; the present invention also discloses a GPS backup method, comprising the following steps: (1) backup system; (2) phase and frequency measurement of the GPS clock source signal to identify GPS The status of the receiving module and the status of receiving satellites; (3) Select the switching mode of the GPS receiving module, and select the clock source signal of the main GPS receiving module or the standby GPS receiving module as the GPS output signal according to the measurement results and the pre-selected backup switching mode ; (4) Report the GPS module switching status and switching alarm to the network management center.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a GPS backup system and method. Background technique [0002] With the continuous deepening of LTE (Long Term Evolution, Long Term Evolution) network construction and the formation of LTE network scale, network construction has gradually entered the post-LTE era. The LTE wireless network has the characteristics of high frequency bands, macro-micro coordination, and heterogeneous networks. The network has dense sites, difficulty in inter-site coordination, large interference, reduced spectrum efficiency, and higher and higher cost of site construction. At the same time, spectrum resources are increasingly tight. It is increasingly difficult to obtain site, sky, and transmission resources, and the network interference environment is becoming more and more complex. Network construction is facing many new challenges. C-RAN is a "green and energy-saving" wireless access network ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L41/0663H04W24/04
CPCH04L41/0663H04W24/04
Inventor 罗新军王楚锋罗京
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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