Patent ID: 9258713
Filing Date: 2016-02-09
CPC Classification: H04W

Claim Text:
1. A method comprising: at a plurality of receiver devices, receiving wireless transmissions from beacon devices which are transmit-only capable, wherein the wireless transmissions of the beacon devices comprise packets that carry information used for location-based services to mobile wireless devices, wherein the plurality of receiver devices is a plurality of wireless local area network access points capable of receiving and sending transmissions in a wireless local area network frequency band and the beacon devices are configured to transmit in a subset of the wireless local area network frequency band in accordance with a protocol that is different from a protocol used for wireless local area network transmissions; obtaining content of one or more fields of packets transmitted by one of the beacon devices and directly received by at least two of the plurality of receiver devices; and analyzing the content of one or more fields of the packets to detect an unauthorized beacon device.