Motorola Corporation

William Turner Scott

Erwin Perry Comer

Soon Teck Gibson Ang

Pamela Tam Carmony

Jill Christine Wheeler

William Henry Ruppert

Bernerd R McKibben

Karina Burchard

A mobile internet protocol on a radio signaling channel (). A mobile internet protocol message is wrapped in a radio control message () by a mobile station () and sent to a radio access network (). The mobile internet protocol message is unwrapped by the radio access network and routed to a home agent () for authentication.

Mobile internet protocol on a signaling channel

A method for interception of encrypted end-to-end () communication data stores encryption keys () of secure communication users. Upon intercept activation () a decrypt function () provides plain text data to an authorized appropriate law agency ().

Interception of secure data in a mobile network

Authorized intercepts of communications in a communications system such as a satellite communications system ( ) are controlled. Each law enforcement agency (LEA) can only intercept communications to subscriber units (SUs) within its jurisdiction. In addition, the identity of each authorized intercept target is known only to the requesting LEA. In one embodiment, a trusted entity, such as a network operations facility (NOF , FIG. ), creates a list of ID's corresponding to all SUs within each LEA's jurisdiction. Each SU ID is provided both unencrypted and encrypted for one or more network nodes (NN -R, FIG. ). A network intercept facility (IF , FIG. ) selects a target SU ID, generates an intercept order encrypted for one or more NNs, and sends it to one or more NNs for execution.

Systems and methods for controlling authorized intercept

Growing community of inventors

Chandler, AZ, United States of America

William Turner Scott