Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-09-20
2005-09-20
Trost, William (Department: 2683)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C455S433000, C455S456100
Reexamination Certificate
active
06947745
ABSTRACT:
The use (call origination, call reception and/or communication (handoff)) of a CDMA-WLL (Wireless Local Loop) mobile station (location-limited mobile station) outside its registered areas is functionally prohibited. The registered areas are determined with regard to each CDMA-WLL mobile station and information concerning the registered areas is stored in a CDMA-WLL controller. For example, when a CDMA-WLL mobile station originated a call, a mobile services switching center refers to the CDMA-WLL controller and thereby searches for the registered areas of the CDMA-WLL mobile station, compares the registered areas with present location areas of the CDMA-WLL mobile station, and executes a connection establishment process for the CDMA-WLL mobile station if a match occurred in the comparison. By such functional location limitation of the CDMA-WLL mobile station, the differentiation between the CDMA-WLL mobile stations and ordinary (location-unlimited) mobile stations can be made properly, and the balance between the CDMA-WLL mobile stations and fixed (wired) telephone sets can be maintained appropriately.
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Miller Brandon J.
NEC Corporation
Trost William
Young & Thompson
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