System and method for selective restriction of ciphering
First Claim
1. A telecommunications system having a mobile services center, a base station system attached thereto and a multiplicity of mobile terminals in wireless communication therewith, a plurality of said mobile terminals having ciphering capability therein for wireless ciphered communications with said base station system, circuitry within said telecommunications system for selectively restricting said ciphering capability within a plurality of restricted areas covered by said telecommunications system, said circuitry comprising:
- a ciphering database containing a multiplicity of ciphering restrictions pertaining to a corresponding multiplicity of signal transceiving areas within said telecommunications system, said plurality of restricted areas being a corresponding plurality of said signal transceiving areas, a ciphering capability flag within said ciphering database being set to no ciphering for each of said restricted areas; and
geographical referencing means for determining said ciphering capability of a particular signal reception area within said telecommunications system, said means accessing a particular ciphering capability flag within said ciphering database, said particular flag corresponding to said particular signal transceiving area, whereby said telecommunications system restricts the ciphering capability of a user within said particular signal transceiving area pursuant to said corresponding particular flag.
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Accused Products
Abstract
A system and method for selectively restricting wireless ciphering communications within a telecommunications system is disclosed. A ciphering database contains flags corresponding to the ciphering restrictions on particular geographical areas. After consulting the particular flag for an area, a ciphering mode is determined either restricting ciphering or allowing it within that geographical or geopolitical area.
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Citations
44 Claims
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1. A telecommunications system having a mobile services center, a base station system attached thereto and a multiplicity of mobile terminals in wireless communication therewith, a plurality of said mobile terminals having ciphering capability therein for wireless ciphered communications with said base station system, circuitry within said telecommunications system for selectively restricting said ciphering capability within a plurality of restricted areas covered by said telecommunications system, said circuitry comprising:
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a ciphering database containing a multiplicity of ciphering restrictions pertaining to a corresponding multiplicity of signal transceiving areas within said telecommunications system, said plurality of restricted areas being a corresponding plurality of said signal transceiving areas, a ciphering capability flag within said ciphering database being set to no ciphering for each of said restricted areas; and geographical referencing means for determining said ciphering capability of a particular signal reception area within said telecommunications system, said means accessing a particular ciphering capability flag within said ciphering database, said particular flag corresponding to said particular signal transceiving area, whereby said telecommunications system restricts the ciphering capability of a user within said particular signal transceiving area pursuant to said corresponding particular flag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for selectively restricting ciphering capability of restricted areas covered by a telecommunications system having a mobile services center, a base station system attached thereto and a multiplicity of mobile terminals in wireless communication therewith, a plurality of said mobile terminals having ciphering capability therein for wireless ciphered communication with said base station system, said method comprising the following steps:
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(a) initiating a cipher mode command for a given communication of one of said mobile terminals, said given communication corresponding to a particular signal transceiving area within said telecommunications system; (b) retrieving a ciphering capability flag from a ciphering database, said ciphering database containing a multiplicity of ciphering restrictions pertaining to a corresponding multiplicity of signal transceiving areas within said telecommunications system, said retrieved ciphering capability flag corresponding to said particular signal transceiving area; and (c) determining a ciphering mode for said given communication, said retrieved ciphering capability flag when set indicating said particular signal transceiving area is cipher restricted and said given communication is cipher-free, and said retrieved ciphering capability flag when not set indicating ciphering availability for said given communication within said particular signal transceiving area. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification