公开(公告)号：US20170048671A1

公开(公告)日：2017-02-16

申请号：US15065696

申请日：2016-03-09

Applicant: QUALCOMM Incorporated

Inventor： Subash MARRI SRIDHAR ,  Carlos Horacio ALDANA ,  Santosh Kumar VAMARAJU

IPC: H04W4/02 ,  H04L5/00 ,  H04W56/00

CPC classification number: H04W4/023 ,  H04L5/0055 ,  H04W56/001 ,  H04W56/0015 ,  H04W56/0065

Abstract: Disclosed herein are techniques for timing synchronization between a first wireless device and a second wireless device. The techniques include sending a first message by the first wireless device to the second wireless device, obtaining a first timestamp at the first wireless device by the first wireless device, and receiving, by the first wireless device, a fine timing measurement frame from the second wireless device in response to the first message. The fine timing measurement frame includes at least a part of a second timestamp from the second wireless device. The techniques further include determining by the first wireless device that the first wireless device is not synchronized to the second wireless device based at least partially on the part of the second timestamp and the first timestamp.

Abstract translation: 这里公开了用于第一无线设备和第二无线设备之间的定时同步的技术。 所述技术包括由第一无线设备向第二无线设备发送第一消息，由第一无线设备在第一无线设备获得第一时间戳，并且由第一无线设备从第二无线设备接收来自第二无线设备的精确定时测量帧 无线设备响应于第一消息。 精细定时测量帧包括来自第二无线设备的第二时间戳的至少一部分。 所述技术还包括至少部分地基于第二时间戳和第一时间戳的部分来确定第一无线设备第一无线设备未与第二无线设备同步。