System and method of detecting overload in a service control point of a telecommunications network
US6510214B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1998 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Dec 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2215/7414
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A service control point (24) includes an overload control system (50) that determines an overload rating (70) for an intelligent processing unit (82). The overload control system (50) includes a latency estimator (52) that requests and receives a latency (66) for a service logic interpreter (62). A queue depth store (54) receives a queue depth (68) from the service logic interpreter (62). A common memory (56) stores the latency (66) and the queue depth (68) in memory mapped files. A load estimator (58) determines the overload rating (70) in response to the latency (66) and the queue depth (68). The load estimator (58) compares the overload rating (70) to a previous overload rating and issues an internal problem report if a difference is detected. A TCAP interface (60) and a service logic program (64) assess the overload rating (70) to determine if incoming service requests should be passed on to the service logic interpreter (62), rerouted, or discarded. The load estimator (58) provides the overload rating (70) to an overload server (84). The overload server (84) determines a system wide overload rating in response to the overload rating (70) received from a plurality of intelligen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.