
US Patent No: 5,719,854
Number of patents in Portfolio can not be more than 2000
Efficiently providing multiple grades of service with protection against overloads in shared resources
Stats
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Feb 17, 1998
Issued date -
Apr 5, 1996
filing date -
08/628,305
serial no -
In Force
status
Importance
Abstract
Techniques for (a) controlling admission of customers to a shared resource, (b) adjusting the capacity of a resource in light of new customer demand, and (c) diverting usage from a failed resource to alternative resources, each use a "blocking probability computer" (BPC) to solve a resource-sharing model that has a product-form steady-state distribution. The techniques allow each customer to obtain an appropriate grade of service and protection against overloads from other customers. Each customer is a source of a series of requests, and is assigned "upper-limit" (UL) and "guaranteed-minimum" (GM) "bounds" on its requests. The upper limit bound puts an upper limit on the number of requests from that customer that can be in service at any time. The guaranteed-minimum bound guarantees that there will always be available resource units in the resources to serve a specified number of requests from that customer. The desired blocking probabilities are directly expressed in terms of normalization constants appearing in the product-form steady-state distribution. The BPC computes the normalization constants by first constructing the generating function (or z-transform) of the normalizing constant and then numerically inverting the generating function.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,101,451 Real-time network routing | 60 | 1990 | |
| 5,058,105 Network alternate routing arrangement | 67 | 1990 | |
| 5,291,481 Congestion control for high speed packet networks | 140 | 1991 | |
| 5,274,644 Efficient, rate-base multiclass access control | 49 | 1991 | |
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| 5,040,171 Call restricting method in packet switching network and network controller having call restricting function | 25 | 1990 | |
| 4,984,264 Call admission control method and cell flow monitoring method in the same method | 93 | 1990 | |
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| 5,166,894 Method and apparatus for cell loss rate estimation, call admission control, and buffer/link capacity designing in integrated network | 31 | 1990 | |