A METHOD AND ARRANGEMENT FOR CONTROLLING SESSIONS IN A COMMUNICATION NETWORK

• Main Authors: LIDSTROEM, MATTIAS, MAS IVARS, IGNACIO
• Format: Patent
• Language: English; French; German
• Published: 15.06.2011
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

A method and an apparatus in a multimedia network node (312), for providing a relevant service level for a first subscriber (A) in a multimedia session with a second subscriber (B). A service level policy has been defined for each subscriber. A session negotiation message (3:1) sent by the first subscriber is first obtained. A required service level of the first subscriber is then detected from a service level parameter that the first subscriber has added to the negotiation message. The policy is updated (3:2a) for the second subscriber if the required service level cannot be allowed in the first subscriber's receive direction according to the original policy of the second subscriber, to allow that network resources are reserved (3:3) for the session such that the first subscriber will receive media (3:4) with the required service level.