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Time service method, device and system

A technology of time information and clock signal, applied in the field of timing method, device and system, can solve the problems of increasing clock error, interlocking of wireless base stations, etc.

Inactive Publication Date: 2016-07-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to enable such base stations to obtain a reference clock, existing technologies provide Ethernet clock synchronization technology and air interface synchronization technology to solve this problem, but these technologies have high requirements on the network environment, such as air interface synchronization technology, when the network environment is bad , interlocking easily occurs between wireless base stations, leading to problems such as increased clock errors

Method used

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  • Time service method, device and system
  • Time service method, device and system
  • Time service method, device and system

Examples

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no. 1 example

[0023] figure 1 The flow chart of the timing method provided by the first embodiment of the present invention consists of figure 1 It can be seen that, in this embodiment, the timing method provided by the present invention includes the following steps:

[0024] S101: Receive a clock signal sent by a standard clock source;

[0025] The standard clock source can be the commonly used GPS timing system, or Beidou, Galileo and other timing systems. The format of the clock signal of different timing systems may be different, but the clock signal can be completed by using the corresponding receiving antenna (such as GPS antenna, etc.) receiving;

[0026] S102: Analyze the clock signal to obtain time information;

[0027] Time information mainly refers to the current time, frame number and other information;

[0028] S103: Send time information through a low-frequency wireless signal.

[0029] In some embodiments, figure 1 The step of analyzing the clock signal to obtain time i...

no. 2 example

[0034] figure 2 The schematic diagram of the timing device provided by the second embodiment of the present invention is represented by figure 2 It can be seen that, in this embodiment, the timing device 2 provided by the present invention includes: a receiving module 21, an analyzing module 22 and a sending module 23, wherein,

[0035] The receiving module 21 can be a commonly used GPS antenna, etc., and is used to receive the clock signal sent by the standard clock source;

[0036] An analysis module 22, configured to analyze the clock signal to obtain time information;

[0037] The sending module 23 is configured to send time information through a low-frequency wireless signal.

[0038] In some embodiments, figure 2 The analysis module 22 in the illustrated embodiment is specifically used to obtain time information after signal capture, tracking, demodulation, synchronization and calculation of the clock signal; commonly used uBloxGPS receivers can be used.

[0039] ...

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Abstract

The invention discloses a time service method, device and system, and the method comprises the steps: receiving a clock signal sent by a standard clock source; analyzing the clock signal, and obtaining time information; and transmitting time information through a low-frequency wireless signal. The method enables the standard clock source to be analyzed, such as a clock signal sent by a GPS positioning satellite, obtains the time information, and then transmits the time information through employing a low-frequency wireless signal, and achieves the time service for a small-size base station. Meanwhile, because of the characteristics of shielding and attenuation of the low-frequency wireless signal which can penetrate an indoor wall, the method can achieve the large-area time service of the small-size base station comprising an indoor base station.

Description

technical field [0001] The invention relates to the field of clock synchronization, in particular to a time service method, device and system. Background technique [0002] Wireless base stations are increasingly miniaturized, and many miniaturized wireless base stations do not have the clock synchronization conditions to obtain satellites as reference sources. In order to enable such base stations to obtain a reference clock, existing technologies provide Ethernet clock synchronization technology and air interface synchronization technology to solve this problem, but these technologies have high requirements on the network environment, such as air interface synchronization technology, when the network environment is bad , Interlocking between wireless base stations is prone to occur, resulting in problems such as increased clock errors. [0003] Therefore, how to provide a timing technology that can provide timing for miniaturized base stations such as wireless base statio...

Claims

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Application Information

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IPC IPC(8): H04W56/00
Inventor 唐雄吴安平
Owner ZTE CORP
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