Automatic wireless service activation in a private local wireless system

US6643504B1 · kind B1 · utility

Assignee

• AT&T CORP. · US

Inventors

• Albert Chow · Hillsdale, US
• Richard Henry Erving · Piscataway, US
• Robert Raymond Miller, II · Madison, US
• Christopher W. Rice · Parsippany, US
• Jesse Eugene Russell · Piscataway, US
• Wenchu Ying · Cedar Knolls, US

Key dates

• Filing date: Jul 10, 2000
• Grant date: Nov 4, 2003
• Expiry date: Nov 24, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W12/062
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Automatic activation (i.e., first time access) of digital wireless/cellular mobile telephones with a private/localized wireless/cellular system (i.e. a secondary system) occurs within an area having an overlapping macrocellular primary wireless communication system (i.e., a dominant system). Operation of the secondary access procedure is achieved by shielding/masking an access and authentication process for the secondary system from interference from the control signal levels of the dominant wireless communication system. During the first time access, the secondary system is supplied with the SID and MIN and ESN numbers for authentication and resultant access.