公开(公告)号：US09585111B2

公开(公告)日：2017-02-28

申请号：US14029966

申请日：2013-09-18

Applicant: Elbit Systems of America, LLC

Inventor： Qingyuan Dai ,  Charles H. Woloszynski

IPC: H04L7/00 ,  H04W56/00 ,  H04J3/06 ,  H04L27/26

CPC classification number: H04W56/001 ,  H04J3/0605 ,  H04L27/2656 ,  H04L27/2657

Abstract: A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short timing contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift.

Abstract translation: 一种方法，包括在第一时间从第一参考节点在同步节点处接收第一参考帧并且存储表示第一时间的第一时间值，以及通过从表示距离的同步的距离中减去最小时间值来计算定时估计器 节点到第一个参考节点，从第一个时间值。 该方法包括在第二时间在同步节点处接收第二参考帧，并从同步节点向第一参考节点发送短时间争用时间帧。 该方法包括在第一参考节点的同步节点处接收表示第一参考节点接收到短定时竞争帧的时间的到达时间值，并从第一到达时间值和第二时间值计算时间漂移并调整 基于时间漂移的定时估计器。

公开(公告)号：US20140016626A1

公开(公告)日：2014-01-16

申请号：US14029966

申请日：2013-09-18

Applicant: ELBIT SYSTEMS OF AMERICA, LLC

Inventor： Qingyuan Dai ,  Charles H. Woloszynski

IPC: H04W56/00

CPC classification number: H04W56/001 ,  H04J3/0605 ,  H04L27/2656 ,  H04L27/2657

Abstract: A method including receiving at a synchronizing node a first reference frame from a first reference node at a first time and storing a first time value representing the first time, and calculating a timing estimator by subtracting a minimum time value, representing the distance from the synchronizing node to the first reference node, from the first time value. The method includes receiving at the synchronizing node a second reference frame at a second time and transmitting from the synchronizing node to the first reference node a short tuning contention time frame. The method includes receiving at the synchronizing node from the first reference node an arrival time value representing the time at which the first reference node received the short timing contention frame and calculating a time drift from the first arrival time value and the second time value and adjusting the timing estimator based on the time drift.

Abstract translation: 一种方法，包括在第一时间从第一参考节点在同步节点处接收第一参考帧并且存储表示第一时间的第一时间值，以及通过从表示距离的同步的距离中减去最小时间值来计算定时估计器 节点到第一个参考节点，从第一个时间值。 该方法包括在第二时间在同步节点处接收第二参考帧，并且从同步节点向第一参考节点发送短调谐争用时间帧。 该方法包括在第一参考节点的同步节点处接收表示第一参考节点接收到短定时竞争帧的时间的到达时间值，并从第一到达时间值和第二时间值计算时间漂移并调整 基于时间漂移的定时估计器。