Patent US6002932A successfully refreshed from Google Patents.
US6002932A
Expired / Lapsed
US
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System and method for mobile terminal positioning
Assignee: Ericsson Inc
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Filing: 1997-11-26
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Granted: 1999-12-14
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Expires: 2017-11-26
Abstract
Abstract A telecommunications system and method is disclosed for determining the address of both the home and serving Mobile Positioning Centers (MPCs). Each Mobile Switching Center/Visitor Location Register (MSC/VLR) and Home Location Register (HLR) within a Public Land Mobile Network (PLMN) will be provided with the MPC address that is valid for its PLMN. When a Mobile Station (MS) roams into a new (serving) PLMN, a Location Update is performed by the serving MSC/VLR to the Home Location Register (HLR). The MPC address for the serving MSC/VLR will be included in every location update operation to the HLR, which can then store this serving MPC address in the subscriber's HLR record. Furthermore, the home MPC address, valid for the PLMN of the HLR, is included in every subscriber data transfer operation from the HLR to the serving MSC/VLR, which can then store this home MPC address, in the subscriber's VLR record.
Inventors
- 👤 Christopher H. Kingdon
- 👤 Bagher R. Zadeh
- 👤 Maya Roel-Ng
- 👤 Stephen Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:01
CPC Classifications
H; H04; H04W; H04W60/00; H04W64/00; H04W8/00; H04W8/02; H04W8/08; H04W8/10
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
148 words
A telecommunications system for determining a home address associated with a home mobile positioning center and a serving address associated with a serving mobile positioning center, said telecommunications system comprising: a home location register connected to said home mobile positioning center for storing said home address of said home mobile positioning center; and a mobile switching center connected to said serving mobile positioning center for storing said serving address of said serving mobile positioning center, said serving address being sent from said mobile switching center to said home location register when a mobile terminal registered in said home location register enters a location area served by said mobile switching center, said mobile terminal being in wireless communication with said mobile switching center, said home address being sent from said home location register to said mobile switching center when said serving address is received by said home location register.
Claim 2
Dependent Claim
148 words
A telecommunications system for determining a home address associated with a home mobile positioning center and a serving address associated with a serving mobile positioning center, said telecommunications system comprising: a home location register connected to said home mobile positioning center for storing said home address of said home mobile positioning center; and a mobile switching center connected to said serving mobile positioning center for storing said serving address of said serving mobile positioning center, said serving address being sent from said mobile switching center to said home location register when a mobile terminal registered in said home location register enters a location area served by said mobile switching center, said mobile terminal being in wireless communication with said mobile switching center, said home address being sent from said home location register to said mobile switching center when said serving address is received by said home location register.
Claim 3
Dependent Claim
32 words
The telecommunications system of claim 1, further comprising a visitor location register connected to said mobile switching center, said serving address and said home address being stored in said visitor location register.
Claim 4
Dependent Claim
18 words
The telecommunications system of claim 2, wherein said visitor location register is integrated with said mobile switching center.
Claim 5
Dependent Claim
22 words
The telecommunications system of claim 1, wherein said serving address is sent to said home location register in a location update message.
Claim 6
Dependent Claim
23 words
The telecommunications system of claim 1, wherein said home address is sent to said mobile switching center in a subscriber data transfer message.
Claim 7
Dependent Claim
37 words
The telecommunications system of claim 1, wherein said home mobile positioning center retrieves said serving address of said serving mobile positioning center from said home location register when said home mobile positioning center receives a positioning request.
Claim 8
Dependent Claim
26 words
The telecommunications system of claim 6, wherein said home mobile positioning center sends said positioning request to said serving mobile positioning center using said serving address.
Claim 9
Dependent Claim
49 words
The telecommunications system of claim 7, wherein said serving mobile positioning center sends said positioning request to said mobile switching center, said positioning request including a positioning address, said mobile switching center verifying said positioning request by checking said positioning address against said home address and said serving address.
Claim 10
Dependent Claim
20 words
The telecommunications system of claim 8, wherein said positioning request is verified when said positioning address is said home address.
Claim 11
Dependent Claim
20 words
The telecommunications system of claim 8, wherein said positioning request is verified when said positioning address is said serving address.
Claim 12
Dependent Claim
66 words
The telecommunications system of claim 8, further comprising a base station system connected to said mobile switching center, said base station system obtaining positioning data associated with said mobile terminal, said base station system sending said positioning data to said mobile switching center, said mobile switching center sending said positioning data to said serving mobile positioning center for calculation of the location of said mobile terminal.
Claim 13
Dependent Claim
41 words
The telecommunications system of claim 11, further comprising a requesting node in communication with said home mobile positioning center, said serving mobile positioning center forwarding the location of said mobile terminal to said requesting node via said home mobile positioning center.
Claim 14
Independent Claim
123 words
A method for determining a home address associated with a home mobile positioning center and a serving address associated with a serving mobile positioning center, said method comprising the steps of: entering, by a mobile terminal registered in a home location register connected to said home mobile positioning center, a location area served by a mobile switching center, said mobile switching center being connected to said serving mobile positioning center, said mobile terminal being in wireless communication with said mobile switching center; sending, by said mobile switching center, said serving address of said serving mobile positioning center to said home location register; and sending, by said home location register, said home address of said home mobile positioning center to said mobile switching center.
Claim 15
Independent Claim
123 words
A method for determining a home address associated with a home mobile positioning center and a serving address associated with a serving mobile positioning center, said method comprising the steps of: entering, by a mobile terminal registered in a home location register connected to said home mobile positioning center, a location area served by a mobile switching center, said mobile switching center being connected to said serving mobile positioning center, said mobile terminal being in wireless communication with said mobile switching center; sending, by said mobile switching center, said serving address of said serving mobile positioning center to said home location register; and sending, by said home location register, said home address of said home mobile positioning center to said mobile switching center.
Claim 16
Dependent Claim
37 words
The method of claim 13, further comprising, after said step of sending said home address, the step of: storing said serving address and said home address in a visitor location register connected to said mobile switching center.
Claim 17
Dependent Claim
17 words
The method of claim 13, wherein said visitor location register is integrated with said mobile switching center.
Claim 18
Dependent Claim
30 words
The method of claim 13, wherein said step of sending said serving address is performed by sending said serving address to said home location register in a location update message.
Claim 19
Dependent Claim
31 words
The method of claim 13, wherein said step of sending said home address is performed by sending said home address to said mobile switching center in a subscriber data transfer message.
Claim 20
Dependent Claim
50 words
The method of claim 13, further comprising, after said step of sending said home address, the steps of: receiving, by said home mobile positioning center, a positioning request; and retrieving, by said home mobile positioning center, said serving address of said serving mobile positioning center from said home location register.
Claim 21
Dependent Claim
35 words
The method of claim 18, further comprising, after said step of retrieving, the step of: sending, by said home mobile positioning center, said positioning request to said serving mobile positioning center using said serving address.
Claim 22
Dependent Claim
69 words
The method of claim 19, further comprising, after said step of sending said positioning request to said serving mobile positioning center, the steps of: sending, by said serving mobile positioning center, said positioning request to said mobile switching center, said positioning request including a positioning address; and verifying, by said mobile switching center, said positioning request by checking said positioning address against said home address and said serving address.
Claim 23
Dependent Claim
19 words
The method of claim 20, wherein said positioning request is verified when said positioning address is said home address.
Claim 24
Dependent Claim
19 words
The method of claim 20, wherein said positioning request is verified when said positioning address is said serving address.
Claim 25
Dependent Claim
77 words
The method of claim 20, further comprising, after said step of verifying, the steps of: obtaining, by a base station system connected to said mobile switching center, positioning data associated with said mobile terminal; sending, by said base station system, said positioning data to said mobile switching center; sending, by said mobile switching center, said positioning data to said serving mobile positioning center; and calculating, by said serving mobile positioning center, the location of said mobile terminal.
Claim 26
Dependent Claim
38 words
The method of claim 23, further comprising, after said step of calculating, the step of: forwarding, by said serving mobile positioning center, the location of said mobile terminal to a requesting node via said home mobile positioning center.
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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) | 2002-12-13 | 2003-06-14 | 2003-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-13 | 2007-06-14 | 2007-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-13 | 2011-06-14 | 2011-12-14 | $7700.00 | Window Closed / Lapsed |