Cryptography – Communication system using cryptography – Wireless communication
Patent
1997-04-15
2000-04-04
Swann, Tod R.
Cryptography
Communication system using cryptography
Wireless communication
380271, 380247, 380248, 380249, 455410, 455435, 455551, H04L 900
Patent
active
060470712
ABSTRACT:
The procedure for Over-The-Air Parameter Administration (OTAPA) utilizes the over-the-air programming protocol and procedures which support the Over-The-Air Service Provisioning (OTASP) feature in accordance with established industry standards (TIA/EIA/IS-683). The mobile phone is programmed with a service option for changing the NAM parameters including an identification number for this option. The network base station sends a message to the mobile phone using the identification number and, if the mobile phone has OTAPA capability, it responds indicating support. The base station then transmits message telling the mobile station to proceed to the Traffic Channel and inquires whether the encryption mode is enabled, proceeding with the OTAPA only if the encryption mode is enabled. Once on the Traffic Channel, a Parameter Change Code (PCC) is sent. If the PCC is verified by the mobile unit, the base station proceeds to update the parameters and store the updated parameters into the phone's memory. After verification of the programmed data in accordance with OTASP processing, the process is terminated. No user intervention is required to initiate or conduct the OTAPA procedure.
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Callahan Paul E.
Nokia Mobile Phones
Swann Tod R.
LandOfFree
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