Invention Grant
US09143967B2 Method and apparatus for determining distance in a Wi-Fi network
有权
用于确定Wi-Fi网络中的距离的方法和装置
- Patent Title: Method and apparatus for determining distance in a Wi-Fi network
- Patent Title (中): 用于确定Wi-Fi网络中的距离的方法和装置
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Application No.: US14322800Application Date: 2014-07-02
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Publication No.: US09143967B2Publication Date: 2015-09-22
- Inventor: Qifan Chen , Kai Shi , Ning Zhang
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Mahamedi Paradice LLP
- Main IPC: H04L12/26
- IPC: H04L12/26 ; H04W24/08 ; G01S7/40 ; G01S13/76 ; H04J3/06
Abstract:
A method and apparatus for improving the accuracy of a round trip time (RTT) estimate between a first device and a second device are disclosed. The method involves calculating an acknowledgement correction factor and a unicast correction factor. These correction factors are used to compensate for symbol boundary time errors resulting from multipath effects.
Public/Granted literature
- US20140313922A1 METHOD AND APPARATUS FOR DETERMINING DISTANCE IN A WI-FI NETWORK Public/Granted day:2014-10-23
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