Patent ID: 8867744
Filing Date: 2014-10-21
Classification: H04L,H04W

Abstract:
1. A computer-implemented method in an access point having a dual-mode antenna for preventing unauthorized messages in a wireless communication network, the method comprising: receiving authorization information from a network controller that identifies devices that are authorized on the network; servicing authorized devices that are connected to the access point; responsive to not servicing authorized devices, switching dynamically to scan for unauthorized devices participating in peer-to-peer communications distinct from the network, comprising: listening to headers of frames including listening to a transmission of a header of a specific frame that comprises a header and a payload with a first portion of the dual-mode antenna, and comparing identification information in the header to the authorization information received; and breaking a payload of the specific fame by disrupting the transmission responsive to determining from the header that the specific frame is associated with an unauthorized device with a second portion of the dual-mode antenna, wherein breaking the payload comprises inserting a noise spike into the payload to change a checksum value of the frame such that the frame payload no longer matches the checksum value.