TIME SYNCHRONIZATION ERROR COMPENSATION METHOD FOR PTP-BASED MULTI-HOP WIRELESS BACKHAUL NETWORKS

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 工业控制网络与系统研究室

	TIME SYNCHRONIZATION ERROR COMPENSATION METHOD FOR PTP-BASED MULTI-HOP WIRELESS BACKHAUL NETWORKS
	Li ZB(李志博); Zeng P(曾鹏); Wang ZW(王照伟); Wang JT(王金涛); Li D(李栋)
	2017-06-29
专利国别	世界专利组织
专利号	WO2017107261A1
专利类型	发明
产权排序	1
权利人	中国科学院沈阳自动化研究所
其他题名	基于PTP协议的多跳无线回程网络时间同步误差补偿方法
中文摘要	The present invention relates to wireless network communication technologies, more specifically a time synchronization error compensation method for a PTP-based multi-hop wireless backhaul network. The method comprises: on the basis of a PTP, use an intermediate node to calculate, receive, and send time stamps of a PTP synchronization message (Sync) and a time delay request message (Delay_Req); on the basis of a linear regression technique, detect and compensate for a link delay of a local relay time and an internodal transmission of Sync and Delay_Req; and correct an asymmetric time delay of a wireless link between a master node and a slave node to complete a time synchronization error compensation. The invention makes no change to existing PTPs and uses a header of PTP messages to transmit additional time information such as a compensation time, header sending and arrival times, and a time correction, thereby reducing messaging overheads fulfilling timeliness and accuracy requirements of the time synchronization error compensation, and improving the precision of the time synchronization, making the invention highly practical.
是否PCT专利	是
申请日期	2016-01-14
语种	英语
专利申请号	PCTCN2016070840
内容类型	专利
源URL	[http://ir.sia.cn/handle/173321/21448]
专题	沈阳自动化研究所_工业控制网络与系统研究室
推荐引用方式 GB/T 7714	Li ZB,Zeng P,Wang ZW,et al. TIME SYNCHRONIZATION ERROR COMPENSATION METHOD FOR PTP-BASED MULTI-HOP WIRELESS BACKHAUL NETWORKS. WO2017107261A1. 2017-06-29.