Method for processing distributed data having a chosen type for synchronizing communication nodes of a data packet network, and associated device

A technology of distributed data and communication nodes, which is applied in the field of data packet network) and can solve problems such as increasing the cost of use

Inactive Publication Date: 2012-02-08
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method for processing distributed data having a chosen type for synchronizing communication nodes of a data packet network, and associated device
  • Method for processing distributed data having a chosen type for synchronizing communication nodes of a data packet network, and associated device
  • Method for processing distributed data having a chosen type for synchronizing communication nodes of a data packet network, and associated device

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Embodiment Construction

[0039] The object of the present invention is to provide a method and a related device (D) for handling distributed data of selected types in a data packet network to allow synchronization of communication nodes (Ni).

[0040] In the following description, it will be appreciated that a data packet network is a mobile network comprising client communication nodes (Ni) such as base stations to be synchronized, as an example only. But the invention is not limited to this type of data packet network. In fact, it concerns any type of data packet network or packet switched network (PSN).

[0041] Furthermore, in the following description, it will be appreciated that distributed data represents timing information and that distributed data is conveyed in "timing" packets (or messages) according to a time distribution protocol such as IEEE 1588V2, as an example only. However, the invention is neither limited to this type of distributed data nor to this type of protocol. In fact it co...

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Abstract

A method is intended for processing distributed data of a chosen type in a data packet network comprising communication nodes (N1-N5). This method comprises the steps of: - receiving a plurality of packets, comprising data of the chosen type and sent at regular time intervals by a source communication node (N1), - assessing a packet delay variation of each of these received packets, - selecting a subset of these received packets according to their respective assessed packet delay variations, and - synchronizing a destination communication node (N5) of the data packet network by means of timing information derived from the selected subset.

Description

technical field [0001] The present invention relates to data packet networks (or packet switched networks (PSNs)), and more particularly to handling distributed data of selected types in data packet networks. Background technique [0002] A person skilled in the art already knows that several protocols are used to transfer selected information between communication nodes connected to a data packet network. This is notable in the case of time distribution protocols, such as those referenced IETF NTPV4 (Network Time Protocol) and IEEE 1588V2. One may recall that these above-mentioned time distribution protocols are intended to support the distribution of time and frequency in the case of high standard applications, such as mobile network applications (eg base station synchronization). For example, in order to synchronize the client clock with the server clock, the time distribution protocol is used to transmit information messages (or packets) from the server (or master commu...

Claims

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Application Information

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IPC IPC(8): H04J3/06
CPCH04J3/0673H04L7/08H04J3/06H04L9/40
Inventor M·勒帕莱克A·迪帕
Owner ALCATEL LUCENT SAS
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