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Leap second jumping processing method and device

A processing method, leap second technology, applied in the field of communication, can solve problems such as the inability to improve the accuracy of time synchronization of the entire network, and achieve the effect of improving accuracy

Inactive Publication Date: 2016-11-23
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The present invention provides a leap second jump processing method and device to at least solve the problem in the related art that the accuracy of time synchronization of the entire network cannot be improved

Method used

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  • Leap second jumping processing method and device
  • Leap second jumping processing method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Embodiment one, combining Figure 6 , describe the specific steps in the actual time synchronization networking:

[0079] Step 1: Configure ptp utc-trace auto holdover 24 on the GM.

[0080] Step 2: Configure the GM configuration on the BC / OC of the intermediate node.

[0081] Step 3: GM / BC / OC execute separately Figure 7 Leap second automatic declaration state machine.

[0082] Step 4: GM transmits the result UTC-TAI-OFFSET obtained by executing the leap second automatic announcement state machine to the downstream BC / OC through the announce message currentUTCoffset.

[0083] Step 5: when sending the leap second event, execute ptp utc-trace-leap leap61 on the GM device (representing that a positive leap 1 second will be added at present), and this mark is notified to the downstream BC / OC through the announce message mark bit Li.

[0084] Step 6: The entire network device maintains a UTC time counter. GM / BC / OC according to their received Li mark and currentUTCoffse...

Embodiment 2

[0087] Embodiment two, combining Figure 6 , describe the specific steps of holdover in the actual time synchronization network:

[0088] Step 1: Configure ptp utc-trace auto holdover on GM 24. Configure local GPS-UTC-OFFSET value.

[0089] Step 2: Configure the GM configuration on the BC / OC of the intermediate node.

[0090] Step 3: GM transmits the result UTC-TAI-OFFSET obtained by executing the leap second automatic announcement state machine to the downstream BC / OC through the announce message currentUTCoffset.

[0091] In further refinement, GM is the ptp source input, and the announce message times out, then the GM enters the announceHoldover state, and still sends the currentUTCoffset held by the announce to the BC through the announce. After 24 hours, it will return to the GPS-UTC-OFFSET value.

[0092]Further refinement, GM is the input of the GPS source. When the GPS is abnormal and the lock is lost, the GM enters the GPS Holdover state and still sends the held GP...

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Abstract

The invention provides a leap second jumping processing method and device. The method comprises the following steps: detecting a leap second jumping event; and when the leap second jumping event is detected, carrying out leap second jumping by a node in a delayed HOLDOVER state according to the compensation information in a historical buffer. By adopting the leap second jumping processing method and device provided by the invention, the problem in the prior art that the accuracy of the time synchronization of an overall network cannot be improved is solved, and thus an effect of improving the accuracy of the time synchronization of the overall network is achieved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for processing leap second jumps. Background technique [0002] figure 1 It is a schematic diagram of the 1588 network. The following time formats need to be used in the system using the 1588 Precision Time Protocol (PTP) system: [0003] 1) International Atomic Time (abbreviated as TAI); 2) Coordinated Universal Time (abbreviated as UTC); 3) Global Positioning System (Global Positioning System, abbreviated as GPS); [0004] TAI: The atomic clocks of the national standard laboratories of BIPM member countries are generated according to the definition of the second and sent to BIPM every month. BIPM multiplies different weights according to the maintenance capabilities and R&D capabilities of laboratories in each country, and the average result is TAI. [0005] UTC: The time standard for life and time released by the integrated No. 1 Universal Time and I...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCG04R20/04
Inventor 李波
Owner ZTE CORP
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