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网络时钟同步技术是通信实体之间进行通信的基础,尤其是其同步精度将影响通信系统的传输质量。在描述有线无线混合网络系统模型的基础上,讨论了IEEE1588协议在系统中应用的实现传输流程,分析了影响系统时钟同步精度的各种因素和性能,仿真结果表明:在有线无线混合网络场景下,使用IEEE1588协议,在有线接入方式下,时钟精度能够稳定在毫秒级内,在无线接入方式下,能够达到10ms以内的时钟精度。
Network clock synchronization technology is the basis for communications between entities, especially the synchronization accuracy will affect the quality of the communication system. Based on the description of the wired / wireless hybrid network system model, the implementation of the IEEE1588 protocol is discussed in the system transmission flow, the various factors and performance that affect the system clock synchronization accuracy are analyzed. The simulation results show that in the wired and wireless hybrid network scenario , The use of IEEE1588 protocol, in wired access mode, the clock accuracy can be stabilized in the millisecond level, in the wireless access mode, to achieve the clock accuracy within 10ms.