Method, system and apparatus of time of flight operation
AssigneeIntel Corporation
InventorsYuval Amizur, Leor Banin, Uri Schatzberg
Life of this patent
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Abstract
An apparatus, a system and a method of waking up a station in a wireless local area network (WLAN) to perform time of flight (ToF) measurements. A wake-up signal for waking the station may be configured for a low energy signaling.
Claims25
A station configured to be woken by a wake up signal, the station comprising:
- receiver circuitry configured to ignore unaddressed signals received from other stations of a wireless local area (WLAN) network while being in a power consumption mode, and to receive from a requesting station the wake-up signal, wherein the wake-up signal is configured for low energy signaling and including a request for a time of flight (ToF) measurements;
- processor circuitry configured to decode the wake-up signal and the request for ToF measurements;
- and
- transmitter circuitry configured to transmit the ToF measurements as a response to the request.
A wireless communication station configured to request location parameters, the station comprising:
- transmitter circuitry configured to transmit a wake-up signal to a time of flight (ToF) measurements station, the wake-up signal being configured for low energy signaling and including a request for ToF measurements;
- and
- receiver circuitry configured to receive a ToF message from the ToF measurements station, subsequent to transmission of said wake-up signal, the ToF message including a time of arrival and a time of departure.
A wireless local area (WLAN) network comprising a station, the station including:
- receiver circuitry configured to ignore unaddressed signals received from other wireless local area network (WLAN) stations while being in a power consumption mode, to receive a wake-up signal from an initiating station, the wake-up signal being configured for low energy signaling and including a request for time of flight (ToF) measurements;
- processor circuitry configured to decode the wake-up signal and said request for ToF measurements;
- and
- transmitter circuitry configured to respond with the ToF measurements.
A computer program product comprising one or more tangible computer readable non-transitory storage media comprising computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement a method of waking up a responding station from a power consumption mode of operation, the method comprising:
- while being in the power consumption mode, ignoring unaddressed signals from one or more wireless local area network (WLAN) stations;
- receiving a wake-up signal from an initiating station, the wake-up signal being configured for low energy signaling;
- decoding the wake-up signal;
- and
- performing a fine time measurement (FTM) procedure with the initiating station.
Dependencies are inferred from the claim text.