Patent · US Active

Method and apparatus for correlating signalling in a communications network

US8477765B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Bo Astrom · Tullinge, SE
Carl-Henrik Hagenfeldt · Ayacucho, PE
Alf Heidermark · Hallsberg, SE
Ralf Keller · Würselen, DE
Fredrik Lindholm · Ayacucho, PE

Key dates

Filing date	Dec 4, 2007
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Jul 31, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04L65/1095
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A node in an IMS network receives circuit switched signalling relating to a communication session sent from a terminal over a circuit switched access network, and also receives packet switched signalling relating to the communication session sent from the terminal over a packet switched access network. The packet switched signalling comprises an identifier, and the node uses the identifier to correlate the circuit switched signalling with the packet switched signalling. This allows terminals using ICS to send signalling over both packet switched and circuit switched access networks, and a receiving node to correlate those signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.