Dynamic load limiting
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsBart Jellema, Rene Peeren, Louise Croughan, Freek Aben
Life of this patent
Estimating the term…
Abstract
A service switching point counts the number of pending queries sent to a service control point and awaiting a response. When the counted number reaches a threshold, further call attempts are rejected. This prevents the load on the service control point from becoming excessive.
Claims9
A switching point, for use in a network architecture having a central control point and a plurality of switching points connected thereto, the switching point comprising:
- means for sending queries to the control point and for receiving responses from the control point;
- means for counting the number of pending queries which have been sent to the control point and are awaiting a response;
- and
- means for preventing additional queries from being sent to the control point when the number of pending queries reaches a threshold value,
- wherein said threshold value is decreased when the number of pending queries reaches said threshold value.
A method of handling a telephone call in a switching point wherein the switching point forms part of a network architecture having a central control point and a plurality of switching points connected thereto wherein the control point handles queries sent from the plurality of switching points, said method comprising the steps of:
- receiving a call attempt;
- incrementing a counter value in response to the call attempt;
- decrementing the counter value whenever a query receives a response from the control point;
- comparing the counter value with a predetermined threshold;
- and
- sending a query to the control point if the counter value is lower than said threshold value, otherwise, rejecting the call attempt wherein
- said threshold value is decreased when the number of pending queries reaches said threshold value.
A network architecture comprising a central control point and a plurality of switching points connected thereto, wherein each switching point comprises:
- means for sending queries to the control point and for receiving responses from the control point;
- means for counting the number of pending queries which have been sent to the control point and are awaiting a response;
- and
- means for preventing additional queries from being sent to the control point when the number of pending queries reaches a threshold value, wherein said threshold value is decreased when the number of pending queries reaches said threshold value.
Dependencies are inferred from the claim text.