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

Precision time protocol node, time stamp operation method and time synchronization system

A precise time protocol and time stamp technology, applied in time division multiplexing systems, synchronization devices, electrical components, etc., can solve the problems of time stamp operation timeliness not guaranteed, signal transmission time is long, etc., to reduce errors , improve accuracy and improve timeliness

Inactive Publication Date: 2010-07-28
CHONGQING TAITONG ANIMAL PHARMA
View PDF2 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the time management subsystem and the business processing subsystem of the PTP node are independently set printed circuit boards or printed circuit board groups, the time management subsystem and the business processing subsystem are interconnected through a bus, and the signal Therefore, during the time stamp operation, from the port unit requesting time information from the local time unit to the time information sent by the local time unit to the port unit, the time information It takes a certain amount of time for the transmission and processing of the clock interface between subsystems, and the timeliness of the time stamp operation cannot be guaranteed

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
  • Precision time protocol node, time stamp operation method and time synchronization system
  • Precision time protocol node, time stamp operation method and time synchronization system
  • Precision time protocol node, time stamp operation method and time synchronization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] In the PTP node provided by Embodiment 1, because the leaf local time unit 12 is set close to the port unit 11, the time stamp module 111 takes a short time to extract time information from the leaf local time unit 12 to generate a time stamp, thus improving To ensure the timeliness of the time stamp operation performed by the PTP node using this embodiment.

[0050] Such as image 3 As shown, the PTP node provided by Embodiment 2 of the present invention includes a service processing subsystem 10 and a time management subsystem 20 . in:

[0051] The business processing subsystem 10 includes two port units 11, and each port unit 11 includes a message transceiver module 111 and a time stamp module 112, and a leaf local time is set near the two port units 11 in the business processing subsystem 10 Unit 12. Wherein, the core processing unit 22 is used to generate and send a message to the message transceiver module 111, or receive and terminate a message from the messag...

Embodiment 2

[0055] The precise time protocol node provided in the second embodiment, because the leaf local time unit 12 is set close to the port unit 11, and the root local time unit 21 periodically issues time information to the leaf local time unit 12, so that the time of the leaf local time unit 12 is consistent with The time of the root local time unit 21 remains consistent, so compared with the time stamp module 111 extracts time information from the root time unit 21 to generate a time stamp, the time stamp module 111 extracts time information from the leaf local time unit 12 to generate a time stamp is shorter, thus improving the timeliness of the time stamp operation performed by the PTP node in the second embodiment.

[0056] Such as Figure 4 As shown, the time stamp operation method in Embodiment 3 of the present invention includes the following steps:

[0057] Step 101, when the message transceiver module receives / sends an event message, it sends a time stamp operation instr...

Embodiment 3

[0059] In the time stamp operation method provided in Embodiment 3, since the operation of the time stamp module extracting time information from the leaf local time unit to generate a time stamp is performed inside the service processing subsystem, the time stamp operation process used The time is short, thereby improving the timeliness of the time stamp operation.

[0060] The following explains in detail how the time stamp module in the third embodiment extracts time information from the leaf local time unit of the service processing subsystem to generate a time stamp according to the instruction.

[0061] Such as Figure 5 shown, including the following steps:

[0062] Step 201, assuming that a certain message sending and receiving module receives a message from another message sending and receiving module, the message sending and receiving module first judges whether the message is an event message or a common message.

[0063] Step 202, if the message is an ordinary me...

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 discloses a precision time protocol node and a time stamp operation method, which relate to the technical field of communication and are invented for improving the timeliness of the time stamp operation. The precision time protocol node comprises a time management subsystem and a service processing subsystem, wherein the time management subsystem comprises a central processing unit which is used for generating and terminating a message; the service processing subsystem is connected with the time management subsystem and comprises a port unit and a leaf local time unit arranged near the port unit; and the port unit comprises a message transceiver module and a time stamp module. The time stamp operation method comprises that: the message transceiver module sends a time stamp operation instruction to the time stamp module when receiving / transmitting an event message; and the time stamp module extracts time information from the service processing subsystem according to the instruction to generate a time stamp. The node and the method of the invention can be used for maintaining time synchronization of a mobile communication network.

Description

technical field [0001] The invention relates to the technical field of time synchronization, in particular to a precise time protocol node, a time stamp operation method and a time synchronization system. Background technique [0002] The second / third generation mobile communication network requires strict time synchronization between adjacent base stations. If the accuracy of time synchronization cannot meet the requirements, when the communicating mobile terminal switches base stations, its service connection will be interrupted. . A precision time synchronization protocol for data networks, that is, PTP (Precision Time Protocol, Precision Time Protocol) protocol, which can meet the synchronization time accuracy requirements of the second generation / third generation mobile communication network based on the data network by using the precision time protocol. [0003] In a mobile communication network, multiple PTP nodes implementing the PTP form a clock network, and the cl...

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
IPC IPC(8): H04W56/00H04J3/06
Inventor 杨祖发
Owner CHONGQING TAITONG ANIMAL PHARMA
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com