Patent ID: 8355727
Filing Date: 2013-01-15
Classification: H04W

Abstract:
1. A method performed by a network device, comprising: configuring the network device with an access control list including identification information for authorized client devices and proximity indicators associated with the client devices; detecting a presence of a client device in proximity to the network device by receiving signals from nearby proximity indicators and decoding identification information from the received signals to determine that the client device is located within communication range of the network device; determining that the client device is authorized to communicate with the network device by comparing the decoded identification information against the identification information included in the access control list; turning-on, based on determining that the client device is authorized to communicate with the network device and detecting that the authorized client device is within communication range of the network device, a first signal that comprises: wherein the second signal enables communication with the network device; transmitting the first signal to the authorized client device; and ceasing transmission of the first signal after (i) initiating communication with the authorized client device, and (ii) determining establishment of a communication with the client device using the second signal, or a pre-set time limit.