System and method for improved paging and location updating of mobile subscribers
First Claim
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1. A telecommunications system for minimizing paging to a mobile station switching between said telecommunication system and a second telecommunication system, said telecommunication system comprising:
- a home location register for handling information associated with said mobile station;
a first location record, within said home location register, for storing a first location of said mobile station when operating within said telecommunication system prior to said switching;
a second separate location record, within said home location register, for storing a second location of said mobile station when operating within said second telecommunication system after said switching, whereby said first location of said mobile station remains stored within said first location record after said mobile station switches to said second telecommunication system, and whereby when said mobile station switches back to said telecommunication system from said second telecommunication system said home location register does not resubscribe said mobile station; and
an associated timer within said home location register, said associated timer being set upon transfer of said mobile station from said telecommunication system to said second telecommunication system, said mobile station initiating returning to said telecommunication system when the time on said associated timer has expired.
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Abstract
A system and method for maintaining the home and visiting location records of a subscriber in a single-, dual- or multi-mode telecommunications system. Upon leaving the home system, an associated record is made of the new location within the visiting system, and a timer initiated. Paging of the subscriber is routed according to the presence of the associated record and unexpired timer, indicating the visiting system, and expired timer, indicating return to the home system.
54 Citations
72 Claims
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1. A telecommunications system for minimizing paging to a mobile station switching between said telecommunication system and a second telecommunication system, said telecommunication system comprising:
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a home location register for handling information associated with said mobile station; a first location record, within said home location register, for storing a first location of said mobile station when operating within said telecommunication system prior to said switching; a second separate location record, within said home location register, for storing a second location of said mobile station when operating within said second telecommunication system after said switching, whereby said first location of said mobile station remains stored within said first location record after said mobile station switches to said second telecommunication system, and whereby when said mobile station switches back to said telecommunication system from said second telecommunication system said home location register does not resubscribe said mobile station; and an associated timer within said home location register, said associated timer being set upon transfer of said mobile station from said telecommunication system to said second telecommunication system, said mobile station initiating returning to said telecommunication system when the time on said associated timer has expired. - 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)
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26. A method for minimizing paging to a mobile station switching between a first and a second telecommunication system, said method comprising the steps of:
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registering said mobile station within a home location register associated with said first telecommunication system, said home location register storing therein, in a first location record, a first location of said mobile station when operating within said first telecommunication system prior to said switching; transmitting, upon a switch by said mobile station from said first telecommunication system to said second telecommunication system, from said mobile station to said home location register a second location of said mobile station after said switching, said home location register storing therein, in a second separate location record, a second location of said mobile station after said switching, whereby said first location of said mobile station remains stored within said first location record after said mobile station switches to said second telecommunication system, and whereby, when said mobile station switches back to said first telecommunication system from said second telecommunication system, said home location register does not resubscribe said mobile station, said home location register including an associated timer therein, said associated timer being set upon transfer of said mobile station from said first telecommunication system to said second telecommunication system, said mobile station initiating returning to said first telecommunication system when the time in said associated timer has expired. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A telecommunications system for minimizing paging to a mobile station switching between said telecommunication system and a second telecommunication system, said telecommunication system comprising:
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a home location register for handling information associated with said mobile station; a first location record, within said home location register, for storing a first location of said mobile station when operating within said telecommunication system prior to said switching; a second separate location record, within said home location register, for storing a second location of said mobile station when operating within said second telecommunication system after said switching, whereby said first location of said mobile station remains stored within said first location record after said mobile station switches to said second telecommunication system, and whereby when said mobile station switches back to said telecommunication system from said second telecommunication system said home location register does not resubscribe said mobile station; and an internal timer within said mobile station, said internal timer being set upon transfer of said mobile station from said telecommunication system to said second telecommunication system, wherein said mobile station initiates returning to said telecommunication system when the time on said internal timer has expired. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. A method for minimizing paging to a mobile station switching between a first and a second telecommunication system, said method comprising the steps of:
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registering said mobile station within a home location register associated with said first telecommunication system, said home location register storing therein, in a first location record, a first location of said mobile station when operating within said first telecommunication system prior to said switching; and transmitting, upon a switch by said mobile station from said first telecommunication system to said second telecommunication system, from said mobile station to said home location register a second location of said mobile station after said switching, said home location register storing therein, in a second separate location record, a second location of said mobile station after said switching, whereby said first location of said mobile station remains stored within said first location record after said mobile station switches to said second telecommunication system, and whereby, when said mobile station switches back to said first telecommunication system from said second telecommunication system, said home location register does not resubscribe said mobile station, said mobile station including an internal timer therein, said internal timer being set upon the transfer of said mobile station from said first telecommunication system to said second telecommunication system; and returning to said first telecommunication system when the time on said internal timer has expired. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification