Location tracking using response messages identifying a tracked device in a wireless network

摘要

In one embodiment, an apparatus includes a receiver configured for receiving a response message from a tracked device in a wireless network, the response message transmitted in response to a provoking message having an identifier of the tracked device in a transmitter address field, and a processor for measuring at least one location related parameter, extracting the identifier of the tracked device from the response message and identifying the response message as a location tracking message based on information in the response message. A field of the response message includes the identifier of the tracked device copied from the provoking message and the transmitter address is not provided in another field of the response message.

主权项

1. A method comprising:
receiving from a tracked device in a wireless network, a response message transmitted in response to a provoking message comprising a receiver address field and a transmitter address field, wherein an identifier of the tracked device is located in said transmitter address field, a field of said response message comprising said identifier of the tracked device copied from said provoking message, wherein a transmitter address is not provided in another field of said response message; and processing said response message at a tracking device, wherein processing comprises measuring at least one location related parameter, extracting said identifier of the tracked device from said response message and identifying said response message as a location tracking message based on information in said response message; wherein said response message is identified as a location tracking message based on a value in a duration field in said response message.