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Service clock determination method and device and packet transport network equipment

A packet transmission network and a technology for determining methods, which are applied in the field of communication, can solve problems such as self-adaptive clock business clock instability, and achieve the effect of ensuring communication stability

Inactive Publication Date: 2013-04-17
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the service clock at the receiving end is unstable due to the jitter of the self-adaptive clock in the current communication system, the present invention provides a PWE3 service clock determination method, device and PTN equipment

Method used

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  • Service clock determination method and device and packet transport network equipment
  • Service clock determination method and device and packet transport network equipment
  • Service clock determination method and device and packet transport network equipment

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Embodiment Construction

[0020] In the following, the present invention will be further explained by means of specific embodiments in conjunction with the accompanying drawings.

[0021] The present invention provides a service clock determination technology for the receiving end in PWE3 communication, which solves the problem in the prior art that only relies on the adaptive clock for dynamic adjustment, and switches between the local clock and the adaptive clock , which ensures the stability of the communication system to a greater extent.

[0022] figure 1 A schematic diagram of a service clock determination device provided by an embodiment of the present invention; figure 1 It can be seen that in this embodiment, the PWE3 service clock determination device provided by the present invention includes a first detection module 11 and a determination module 12; wherein,

[0023] The first detection module 11 is used for detecting and judging whether the adaptive clock as the service clock of PWE3 jit...

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Abstract

The invention provides a service clock determination method and a service clock determination device and packet transport network equipment of PWE3 (Pseudo-Wire Emulation Edge to Edge), which are used for solving the problem that influence is caused to a service clock from jitter of an adaptive clock in PWE3 communication. The service clock determination method comprises the following steps of: detecting whether an adaptive clock used as a service clock of the PWE3 jitters; and if so, taking a local clock as the service clock of the PWE3. Through implementation of the invention, when the adaptive clock of the PWE3 jitters, the local clock is used as the service clock of a receiving side, so that the influence of the jitter of the adaptive clock on the service clock is avoided, and therefore the communication stability of a communication system applying a PWE3 protocol is ensured.

Description

technical field [0001] The present invention relates to the communication field, in particular to a PWE3 (Pseudowire Emulation Protocol Edge-to-Edge) service clock determination method, device and PTN (Packet Transport Network) equipment. Background technique [0002] With the development of communication network technology and services, IP-based communication services are an inevitable trend. In the communication bearer networks of mainstream operators, PTN equipment is gradually replacing the original MSTP equipment to realize IP-based communication services. In order to carry the original 2G The PWE3 standard came into being for communication services such as network, fixed-line or leased line users; in PWE3 services, in order to transmit the service clock of the sending end to the receiving end through the IP network, and to reduce IP network congestion and traffic burst The jitter is implemented by the adaptive clock method. The adaptive clock is automatically adjusted ...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/70H04L29/06
CPCH04J3/0632
Inventor 文林
Owner ZTE CORP
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