Method and System for Wireless local area network Proximity Recognition

摘要

A method and system for proximity detection, recognition and classification of a wireless local area network (WLAN) enabled device without a WLAN infrastructure. The proximity recognition system monitors WLAN communications at one or more known locations. The proximity of a transmitter is sensed by examining receive signal strength as the mobile device engages in a sequence of protocol data unit exchanges requesting WLAN association. An identifier of the mobile device may be provided in this association request. Association requests may be periodic or may be prompted by a specific response from the WLAN proximity recognition device which may operate on one or a plurality of WLAN channels.

主权项

1. A method for detecting proximity comprising:
monitoring wireless communications at a wireless communications device; detecting association requests, wherein the association request is initiated by an originating device to request access to a known wireless local area network; determining the originating device associated with the association request, wherein a device identifier associated with the originating device is a component of the association request; inferring the presence of the originating device at the location of wireless communications device.