Invention Grant
- Patent Title: Coordinated radio fine time measurement
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Application No.: US17445060Application Date: 2021-08-13
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Publication No.: US11641635B2Publication Date: 2023-05-02
- Inventor: Jerome Henry , Matthew A. Silverman , John M. Swartz , Vishal S. Desai , Robert E. Barton
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Patterson + Sheridan, LLP
- Main IPC: H04W4/06
- IPC: H04W4/06 ; H04W64/00 ; G01S13/74

Abstract:
Coordinated radio fine time measurement is provided via sending, from a client device, a ranging request to a first radio; receiving a first response sent at a first time from the first radio over a first channel; receiving a second response sent at the first time from a second radio over a second channel; and calculating, based on times of flight for the first response and the second response, a location of the client device relative to the first radio and to the second radio. Coordinated radio fine time measurement is also proved via in response to receiving, at an Access Point (AP), a ranging request from a client device and determining to respond using multiple channels: sending, both at a first time, a first response from a first radio over a first channel a second response from a second radio over a different channel.
Public/Granted literature
- US20210377901A1 COORDINATED RADIO FINE TIME MEASUREMENT Public/Granted day:2021-12-02
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