US5878347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Routing a data signal to a mobile station within a telecommunications network
Assignee: Ericsson Inc
•
Filing: 1996-06-03
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Granted: 1999-03-02
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Expires: 2016-06-03
Abstract
Abstract Incoming calls or messages for a mobile station that has been ported from a first HLR to a second HLR are first received by a gateway node. The gateway node, in turn, transmits a signal requesting routing instruction to a centralized database connected to a gateway node. Utilizing the received Mobile Station Integrated Services Digital Network (MSISDN) number, the centralized database determines the network address of the new HLR currently serving the ported mobile station. The received signal requesting routing information is then routed to the new HLR. The new HLR retrieves the requested information and transmits it back to the gateway node. The gateway node, utilizing the received routing information received from the new HLR, accordingly routes the incoming calls or messages to the ported mobile station.
Inventors
- 👤 Erkki Joensuu
- 👤 Mahesh Patel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:52
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/02; H04W8/08; H04W8/10; H04Q; H04Q3/00; H04Q3/0016; H04Q3/0029; H04Q3/005; H04W8/26; H04W8/28; H04Q2213/00; H04Q2213/13097; H04Q2213/13098; H04Q2213/13102; H04Q2213/13103; H04Q2213/13141; H04Q2213/13209; H04Q2213/13216; H04Q2213/13336; H04Q2213/13345; H04Q2213/13353; H04Q2213/13532
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
160 words
A method for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing said subscriber information associated with said mobile station, said method comprising the steps of: responsive to an incoming signal, transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information; determining, by said centralized database, a network address representing said particular HLR by indexing on said mobile station identification number; rerouting said first signal from said centralized database to said particular HLR using said determined network address; retrieving said subscriber information in response to a reception of said first signal by said particular HLR; and transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal being addressed to said gateway node.
Claim 2
Independent Claim
160 words
A method for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing said subscriber information associated with said mobile station, said method comprising the steps of: responsive to an incoming signal, transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information; determining, by said centralized database, a network address representing said particular HLR by indexing on said mobile station identification number; rerouting said first signal from said centralized database to said particular HLR using said determined network address; retrieving said subscriber information in response to a reception of said first signal by said particular HLR; and transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal being addressed to said gateway node.
Claim 3
Dependent Claim
21 words
The method of claim 1 wherein said mobile station identification number comprises a Mobile Station Integrated Services Digital Network (MSISDN) number.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said incoming signal comprises a Short Message Service (SMS) data signal.
Claim 5
Dependent Claim
19 words
The method of claim 3 wherein said gateway node comprises a Short Message System--Gateway Mobile Switching Center (SMS-GMSC) node.
Claim 6
Dependent Claim
53 words
The method of claim 4 wherein said incoming signal includes a translation type (TT) value, and wherein said step of transmitting said first signal to said centralized database further comprises the steps of: testing for whether said TT value equals ten; and transmitting said first signal if said TT value equals ten (10).
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein said subscriber information comprises a network address representing a Mobile Switching Center (MSC) currently serving said mobile station.
Claim 8
Dependent Claim
14 words
The method of claim 1 wherein said incoming signal comprises an incoming voice call.
Claim 9
Dependent Claim
22 words
The method of claim 7 wherein said gateway node comprises a Gateway Mobile Switching Center (GMSC) for routing said incoming voice call.
Claim 10
Independent Claim
170 words
A system for routing an incoming signal to a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing subscriber information associated with said mobile station, said system comprising: a mobile switching center (MSC) serving said mobile station, said particular HLR storing said subscriber information identifying said MSC; a gateway node for receiving said incoming signal and transmitting a first signal requesting said subscriber information; a centralized database for receiving said first signal and determining a network address of said particular HLR and rerouting said first signal using said network address from said centralized database to said particular HLR; wherein said particular HLR retrieves said subscriber information and transmits a second signal including said subscriber information to said gateway node, said second signal being addressed to said gateway node; and wherein said gateway node responds to said network information received in said second signal by routing said incoming signal to said MSC as indicated by said subscriber information.
Claim 11
Independent Claim
170 words
A system for routing an incoming signal to a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing subscriber information associated with said mobile station, said system comprising: a mobile switching center (MSC) serving said mobile station, said particular HLR storing said subscriber information identifying said MSC; a gateway node for receiving said incoming signal and transmitting a first signal requesting said subscriber information; a centralized database for receiving said first signal and determining a network address of said particular HLR and rerouting said first signal using said network address from said centralized database to said particular HLR; wherein said particular HLR retrieves said subscriber information and transmits a second signal including said subscriber information to said gateway node, said second signal being addressed to said gateway node; and wherein said gateway node responds to said network information received in said second signal by routing said incoming signal to said MSC as indicated by said subscriber information.
Claim 12
Dependent Claim
19 words
The system of claim 9 wherein said gateway node comprises a Short Message Service--Gateway Mobile Switching Center (SMS-GMSC) node.
Claim 13
Dependent Claim
29 words
The system of claim 10 wherein said first signal to said centralized database is transmitted only if said incoming signal comprises a Title Translation (TT) value of ten (10).
Claim 14
Dependent Claim
24 words
The system of claim 9 wherein said first signal comprises a Mobile Application Part (MAP) signal communicated over a Signaling System No. 7 (SS7).
Claim 15
Dependent Claim
44 words
The system of claim 9 wherein said centralized database stores: a first record containing an identification number for said mobile station; a second record containing said network address representing said particular HLR; and correlation data for correlating said first record with said second record.
Claim 16
Dependent Claim
16 words
The system of claim 13 wherein said network address comprises a Global Title (GT) translation address.
Claim 17
Dependent Claim
20 words
The system of claim 13 wherein said network address comprises a Destination Point Code (DPC) and a Subsystem Number (SSN).
Claim 18
Dependent Claim
19 words
The system of claim 9 wherein said first signal includes a Mobile Station Integrated Service Digital Network (MSISDN) number.
Claim 19
Dependent Claim
22 words
The system of claim 9 wherein said gateway node comprises a Gateway Mobile Switching Center (GMSC) node for handling incoming voice calls.
Claim 20
Dependent Claim
16 words
The system of claim 9 wherein said centralized database comprises a virtual home location register (VHLR).
Claim 21
Independent Claim
167 words
A system for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register to a particular home location register (HLR), said particular HLR storing said subscriber information associated with said mobile station, said system comprising: responsive to an incoming signal, means for transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information; means for determining, by said centralized database, a network address representing said particular HLR using said mobile station identification number; means for rerouting said first signal from said centralized database to said particular HLR using said determined network address; means for retrieving said subscriber information in response to a reception of said first signal by said particular HLR; and means for transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal being addressed to said gateway node.
Claim 22
Independent Claim
167 words
A system for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register to a particular home location register (HLR), said particular HLR storing said subscriber information associated with said mobile station, said system comprising: responsive to an incoming signal, means for transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information; means for determining, by said centralized database, a network address representing said particular HLR using said mobile station identification number; means for rerouting said first signal from said centralized database to said particular HLR using said determined network address; means for retrieving said subscriber information in response to a reception of said first signal by said particular HLR; and means for transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal being addressed to said gateway node.
Claim 23
Dependent Claim
21 words
The system of claim 19 wherein said mobile station identification number comprises a Mobile Station Integrated Services Digital Network (MSISDN) number.
Claim 24
Dependent Claim
19 words
The system of claim 19 wherein said gateway node comprises a Short Message System--Gateway Mobile Switching Center (SMS-GMSC) node.
Claim 25
Dependent Claim
21 words
The system of claim 19 wherein said gateway node comprises a Gateway Mobile Switching Center (GMSC) for routing said incoming signal.
Claim 26
Independent Claim
228 words
A method for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing said subscriber information associated with said mobile station, said method comprising the steps of: responsive to an incoming signal, transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information, and said first signal having an originating address comprising an address for said gateway node and a destination address comprising an address for said centralized database; determining, by said centralized database, a network address representing said particular HLR by indexing on said mobile station identification number; forwarding said first signal from said centralized database to said particular HLR by replacing in said destination address of said first signal said network address of said particular HLR and maintaining said address for said gateway node as said originating address; retrieving said subscriber information from said particular HLR; and transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal having an originating address comprising said network address of said particular HLR and a destination address comprising said address of said gateway node as extracted from said originating address of said first signal.
Claim 27
Independent Claim
228 words
A method for retrieving subscriber information associated with a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing said subscriber information associated with said mobile station, said method comprising the steps of: responsive to an incoming signal, transmitting a first signal identifying a mobile station identification number from a gateway node to a centralized database, said first signal requesting said subscriber information, and said first signal having an originating address comprising an address for said gateway node and a destination address comprising an address for said centralized database; determining, by said centralized database, a network address representing said particular HLR by indexing on said mobile station identification number; forwarding said first signal from said centralized database to said particular HLR by replacing in said destination address of said first signal said network address of said particular HLR and maintaining said address for said gateway node as said originating address; retrieving said subscriber information from said particular HLR; and transmitting a second signal from said particular HLR to said gateway node, said second signal including said retrieved subscriber information, and said second signal having an originating address comprising said network address of said particular HLR and a destination address comprising said address of said gateway node as extracted from said originating address of said first signal.
Claim 28
Dependent Claim
21 words
The method of claim 23 wherein said mobile station identification number comprises a Mobile Station Integrated Services Digital Network (MSISDN) number.
Claim 29
Dependent Claim
17 words
The method of claim 23, wherein said incoming signal comprises a Short Message Service (SMS) data signal.
Claim 30
Dependent Claim
19 words
The method of claim 25 wherein said gateway node comprises a Short Message Service--Gateway Mobile Switching Center (SMS-GMSC) node.
Claim 31
Dependent Claim
53 words
The method of claim 26 wherein said incoming signal includes a translation type (TT) value, and wherein said step of transmitting said first signal to said centralized database further comprises the steps of: testing for whether said TT value equals ten; and transmitting said first signal if said TT value equals ten (10).
Claim 32
Dependent Claim
24 words
The method of claim 23 wherein said subscriber information comprises a network address representing a Mobile Switching Center (MSC) currently serving said mobile station.
Claim 33
Dependent Claim
14 words
The method of claim 23 wherein said incoming signal comprises an incoming voice call.
Claim 34
Dependent Claim
22 words
The method of claim 29 wherein said gateway node comprises a Gateway Mobile Switching Center (GMSC) for routing said incoming voice call.
Claim 35
Independent Claim
264 words
A system for routing an incoming signal to a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing subscriber information associated with said mobile station, said system comprising: a mobile switching center (MSC) serving said mobile station, said particular HLR storing said subscriber information identifying said MSC; a gateway node for receiving said incoming signal and transmitting a first signal requesting said subscriber information; a centralized database for receiving said first signal and determining a network address of said particular HLR and forwarding said first signal using said network address from said centralized database to said particular HLR; wherein said first signal has an originating address comprising an address for said gateway node and a destination address comprising an address for said centralized database; wherein said centralized database forwards said first signal to said particular HLR by replacing in said destination address of said first signal said network address of said particular HLR and maintaining said address for said gateway node as said originating address; wherein said particular HLR retrieves said subscriber information and transmits a second signal including said subscriber information to said gateway node, said second signal having an originating address comprising said network address of said particular HLR and a destination address comprising said address of said gateway node as extracted from said originating address of said first signal; and wherein said gateway node responds to said subscriber information received in said second signal by routing said incoming signal to said MSC as indicated by said subscriber information.
Claim 36
Independent Claim
264 words
A system for routing an incoming signal to a mobile station, said mobile station being ported from an original home location register (HLR) to a particular HLR, said particular HLR storing subscriber information associated with said mobile station, said system comprising: a mobile switching center (MSC) serving said mobile station, said particular HLR storing said subscriber information identifying said MSC; a gateway node for receiving said incoming signal and transmitting a first signal requesting said subscriber information; a centralized database for receiving said first signal and determining a network address of said particular HLR and forwarding said first signal using said network address from said centralized database to said particular HLR; wherein said first signal has an originating address comprising an address for said gateway node and a destination address comprising an address for said centralized database; wherein said centralized database forwards said first signal to said particular HLR by replacing in said destination address of said first signal said network address of said particular HLR and maintaining said address for said gateway node as said originating address; wherein said particular HLR retrieves said subscriber information and transmits a second signal including said subscriber information to said gateway node, said second signal having an originating address comprising said network address of said particular HLR and a destination address comprising said address of said gateway node as extracted from said originating address of said first signal; and wherein said gateway node responds to said subscriber information received in said second signal by routing said incoming signal to said MSC as indicated by said subscriber information.
Claim 37
Dependent Claim
17 words
The system of claim 31 wherein said incoming signal comprises a Short Message Service (SMS) data signal.
Claim 38
Dependent Claim
19 words
The system of claim 32 wherein said gateway node comprises a Short Message Service--Gateway Mobile Switching Center (SMS-GMSC) node.
Claim 39
Dependent Claim
29 words
The system of claim 33 wherein said first signal to said centralized database is transmitted only if said incoming signal comprises a Title Translation (TT) value of ten (10).
Claim 40
Dependent Claim
24 words
The system of claim 31 wherein said first signal comprises a Mobile Application Part (MAP) signal communicated over a Signaling System No. 7 (SS7).
Claim 41
Dependent Claim
44 words
The system of claim 31 wherein said centralized database stores: a first record containing an identification number for said mobile station; a second record containing said network address representing said particular HLR; and correlation data for correlating said first record with said second record.
Claim 42
Dependent Claim
19 words
The system of claim 31 wherein said first signal includes a Mobile Station Integrated Service Digital Network (MSISDN) number.
Claim 43
Dependent Claim
21 words
The system of claim 31 wherein said gateway node comprises a Gateway Mobile Switching Center (GMSC) for handling incoming voice calls.
Claim 44
Dependent Claim
16 words
The system of claim 31 wherein said centralized database comprises a virtual home location register (VHLR).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |