Method, equipment and system for precise time synchronization

A technology for precise time synchronization and network equipment. It is applied in time division multiplexing systems, electrical components, and multiplexing communications. It can solve problems such as hardware implementation difficulties and multi-hardware judgment logic. The effect of time synchronization
CN101902291AInactive Publication Date: 2010-12-01GLOBAL INNOVATION AGGREGATORS LLC
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GLOBAL INNOVATION AGGREGATORS LLC
Publication Date
2010-12-01
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The embodiment of the invention provides a method, equipment and a system for layer network structure-based precise time synchronization. The method comprises the following steps of: receiving a PTP message sent by a PTP message sending node by a first precise time protocol (PTP) end node, and encapsulating the PTP message according to the requirement of a layer network; and forwarding the encapsulated PTP message to a second PTP end node, sending the PTP message to a PTP message receiving node through the second PTP end node, and performing the precise time synchronization through the PTP message receiving node. Through the method, the equipment and the system of the embodiment of the invention, the PTP message is subjected to layering according to a layer network structure, so that the load of processing the PTP message by a PTP port is relieved, and the layer network structure is favorable for realizing the precise time synchronization.
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Description

technical field

[0001] The present invention relates to precise time synchronization, in particular to a precise time synchronization method, device and system. Background technique

[0002] Precise time synchronization is widely used in some 2G / 3G (2nd Generation, second generation / 3rd Generation, third generation) mobile communication networks, automated industrial manufacturing, and delay testing and measurement. The transmission mainly relies on GPS (Global Positioning System, Global Positioning System) equipment or a local bus. The rapid development of data communication networks is gradually deepening the above application fields. How to achieve precise time synchronization based on data networks has become a key issue in the current communication field.

[0003] At present, the layered network structure is one of the main application methods of the current data communication network. Layer networks operate independently of each other. Every time data information ent...

Claims

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