Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Base station time synchronization method and device

A technology of time synchronization and the first time, which is applied in the field of communication, can solve the problems of base station time inaccurate synchronization, base station clock drift deterioration, etc., and achieve the effect of improving time synchronization performance and improving drift deterioration

Active Publication Date: 2015-04-29
DATANG MOBILE COMM EQUIP CO LTD
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for base station time synchronization to solve the problem that base station clock drift deteriorates and base station time cannot be accurately synchronized during base station movement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Base station time synchronization method and device
  • Base station time synchronization method and device
  • Base station time synchronization method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for base station time synchronization provided by an embodiment of the present invention is introduced in detail.

[0041] refer to figure 2 , shows a flowchart of a method for base station time synchronization in an embodiment of the present invention.

[0042] Step 100, judging whether the base station is moving.

[0043] When the base station does not move, that is, when the base station is stationary, time synchronization can be achieved by extracting the timing pulse edge and TOD of the GPS timing module.

[0044] Step 102, when the base station moves and the moving distance is greater than or equal to a first distance, relocate the position of the base station.

[0045] Wherein, the above-mentioned first distance may be selected as 400 meters or 500 meters, etc., which may be determined according to actual conditions.

[0046] Step 104, when the location measurement flag in the time data TOD received for the first consecutive time is invalid, synchron...

Embodiment 2

[0050] A method for base station time synchronization provided by an embodiment of the present invention is introduced in detail.

[0051] refer to image 3 , shows a flowchart of a method for base station time synchronization in an embodiment of the present invention.

[0052] Step 200, select N base station location measurement points to perform the first time locking operation of the base station in the public network.

[0053] Wherein, N is a positive integer, N<2000.

[0054]Under normal circumstances, due to the satellite acquisition and receiver position measurement and positioning links inside the GPS receiver in the base station, the first lock time of the base station in the public network has always been more than 40 minutes. The above step 200 proceeds from the fundamental factors affecting the first lock time, combined with theoretical analysis, theoretically, the more points collected for position measurement, the smaller the position error after participating ...

Embodiment 3

[0079] A method for base station time synchronization provided by an embodiment of the present invention is introduced in detail.

[0080] refer to Figure 4 , shows a flowchart of a method for base station time synchronization in an embodiment of the present invention.

[0081] Step 300, fast locking time in base station static mode.

[0082] Step 302, loop to determine whether the base station is moving.

[0083] When the base station does not move, execute step 304; when the base station moves, execute step 306.

[0084] In step 304, the time of the base station maintains the real clock, and this process ends.

[0085] Step 306, judging whether the moving distance of the base station is less than 500 meters.

[0086] When the moving distance of the base station is less than 500 meters, perform step 304; when the moving distance of the base station is greater than or equal to 500 meters, perform step 308.

[0087] In step 308, the time of the base station is adjusted to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a base station time synchronization method and a base station time synchronization device. The method comprises the following steps: judging whether a base station moves or not; when the base station moves and the movement distance is greater than or equal to a first distance, repositioning the position of the base station; when a position measurement mark in the time data TOD received in a first continuous time is invalid, synchronizing the time of the base station with an external real clock. According to the method and the device, the drift deterioration of the clock of the base station in the overall moving process is greatly improved; the time synchronization performance of the base station in a moving state is improved.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a method and device for base station time synchronization. Background technique [0002] Base station time synchronization refers to synchronizing the base station equipment with the standard time of the Coordinated Universal Time. Its working principle is to use the satellite signal receiver to receive the satellite positioning and timing signals transmitted by the Global Positioning System (GPS), and extract all information from them. required timing signal. Considering the delay in transmission, it is necessary to compensate the phase delay of the extracted timing signal, and then convert the format of the compensated signal, and finally output a precise time synchronization signal in a specific format, which is compatible with the coordination The standard time of Universal Time is kept in sync. The base station receives the precise time synchronization signal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/0065
Inventor 郝小丽刘明贺鑫姜伟
Owner DATANG MOBILE COMM EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com