US5867787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload control for an integrated MSC/HLR switch
Assignee: Lenovo Innovations Ltd Hong Kong
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Filing: 1995-07-31
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Granted: 1999-02-02
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Expires: 2015-07-31
Abstract
Abstract An integrated MSC/HLR switch accommodates overloads by throttling peripherals during MSC overload conditions, and halting TCAP messages and throttling peripherals during HLR overload conditions.
Inventors
- 👤 Madhusudham Vudali
- 👤 Steven W. Racz
- 👤 Stephen Bird
- 👤 Imran Rehman
- 👤 Kalyan Basu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:06
CPC Classifications
H; H04; H04W; H04W28/00; H04W28/02; H04W28/10; H04W28/12; H04Q; H04Q2213/00; H04Q2213/13098; H04Q2213/13103; H04Q2213/13166; H04Q2213/13204; H04Q2213/13344; H04Q2213/13387; H04W24/00; H04W24/08; H04W28/14; H04W88/00; H04W88/14; H04W92/00; H04W92/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
158 words
A system for countering overload conditions in an integrated Mobile Switching Center (MSC)\Home Location Register (HLR) switch receiving MSC and HLR messages, the system comprising: a CPU with an HLR portion and an MSC portion; the HLR portion including database means for storing HLR configuration information, HLR overload detect means for generating an HLR overload condition signal in response to an HLR overload condition; the MSC portion including means for routing MSC messages, MSC overload detect means for detecting the presence of an MSC overload condition and for generating an MSC overload condition signal in response to the MSC overload condition, and throttling means, responsive to the HLR overload condition signal and the MSC overload condition signal, for signaling the need for reducing the number of MSC messages received by the switch; and peripheral devices, coupled to the CPU, said peripheral devices including means for limiting the messages sent to the CPU in response to the throttling means.
Claim 2
Independent Claim
158 words
A system for countering overload conditions in an integrated Mobile Switching Center (MSC)\Home Location Register (HLR) switch receiving MSC and HLR messages, the system comprising: a CPU with an HLR portion and an MSC portion; the HLR portion including database means for storing HLR configuration information, HLR overload detect means for generating an HLR overload condition signal in response to an HLR overload condition; the MSC portion including means for routing MSC messages, MSC overload detect means for detecting the presence of an MSC overload condition and for generating an MSC overload condition signal in response to the MSC overload condition, and throttling means, responsive to the HLR overload condition signal and the MSC overload condition signal, for signaling the need for reducing the number of MSC messages received by the switch; and peripheral devices, coupled to the CPU, said peripheral devices including means for limiting the messages sent to the CPU in response to the throttling means.
Claim 3
Dependent Claim
30 words
The switch of claim 1 wherein the throttling means includes means, responsive to the HLR overload condition signal, for signalling selected ones of the peripherals to stop sending MSC messages.
Claim 4
Dependent Claim
47 words
The switch of claim 2 wherein a plurality of peripherals connect to the switch, and wherein the throttling means includes means, responsive to the HLR overload condition signal and the timer means, for signalling different groups of selected ones of the peripherals to stop sending MSC messages.
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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) | 2002-02-01 | 2002-08-03 | 2003-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-01 | 2006-08-03 | 2007-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-01 | 2010-08-03 | 2011-02-02 | $7700.00 | Window Closed / Lapsed |