Multi-precision clock synchronization method for 5G intelligent nodes based on SDN architecture
An SDN architecture and clock synchronization technology, applied in the communication field, can solve the problem of low automation of the clock synchronization process, and achieve optimal resource utilization and good compatibility
Active Publication Date: 2020-12-08
ZHEJIANG GONGSHANG UNIVERSITY +1
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Problems solved by technology
[0009] However, the automation degree of the current clock synchronization process is generally not high, and the automation degree of our multi-precision clock synchronization protocol method can reach a very high level
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[0023] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] The multi-precision clock synchronization method of 5G intelligent nodes based on the SDN architecture of the present invention has better compatibility, can be applied to the multi-precision clock synchronization requirements of large-scale terminal nodes, and the degree of automation can reach a very high level.
[0025]The invention utilizes the 5G environment and the SDN architecture to centralize the control and software definition of the low-cost intelligent network sensor nodes. With the rapid development of network applications, more and more protocols and servers need to be deployed in the network, while traditional routers need to manually complete the expansion of services and protocols, which is very inefficient. The emergence of programmable networks enables the extension of network protocols and services to be ...
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The invention discloses a multi-precision clock synchronization method of a 5G intelligent node based on an SDN architecture, and the method comprises the following steps: 1), enabling a synchronized5G intelligent node to serve as a forwarding unit in the SDN architecture, abstracting a clock synchronization logic function block, and achieving the logic function description of the clock synchronization logic function block through an XML file; 2) developing specific operation programs for all operation interfaces in the XML file according to the definition of the clock synchronization logic function block; 3) under the unified coordination of the controller, taking a controller as a master clock node, and taking all 5G intelligent nodes as slave clock nodes; and 4) enabling the controllerto control the clock synchronization logic function block instances of all synchronized 5G intelligent nodes through corresponding synchronization protocols according to different precision requirements of user clock synchronization so as to realize large-scale clock synchronization. The method is convenient to arrange, low in cost and good in compatibility, and can be applied to large-scale terminal node multi-precision clock synchronization requirements.
Description
technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a multi-precision clock synchronization method based on an SDN architecture 5G intelligent node. Background technique [0002] 5G is the biggest hotspot in the telecommunications industry and even the entire ICT industry today, and it is also an important focus of the national strategy. 5G defines three major business scenarios: eMBB (enhanced mobile broadband), uRLLC (high reliability and low latency) and mMTC (massive machine connection), covering almost all business application areas imaginable today. Compared with 4G, the key indicators of 5G's access rate, delay, and connection density have increased by 10 times, which is a very significant technological progress. Looking back at the history of mobile communication development, technical standards are upgraded every 10 years. 1G in the 1980s was analog voice communication, 2G in the 1990s was digital voic...
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IPC IPC(8): H04J3/06H04L29/06
CPCH04J3/0661H04L69/28
Inventor 李传煌诸葛斌李军毛建洋张彬鑫梁刚陈青松鲁佳
Owner ZHEJIANG GONGSHANG UNIVERSITY