US Patent No. 9,462,476


Patent No. 9,462,476
Issue Date October 04, 2016
Title Identifying Unsubscribed Tethering In A Wireless Network
Inventorship Daniel Alberto Vivanco, Sterling, VA (US)
Assignee Sprint Communications Company L.P., Overland Park, KS (US)

Claim of US Patent No. 9,462,476

1. A system configured to identify devices providing unauthorized tethering services, the system comprising:
a database having records of services subscribed by wireless devices; and
a server configured to poll the database to generate a list of wireless devices that are not subscribed to a tethering service,
to receive a Network-Address-Translation-Table-Present message from each wireless device that is tethering at least one other
network element, and to identify wireless devices as unauthorized when the Network-Address-Translation-Table-Present message
is received from the wireless device and the wireless device is on the list of wireless devices that are not subscribed to
the tethering service.