Patent application number | Description | Published |
20100217855 | METHODS AND APPARATUSES FOR NOTIFYING AN APPLICATION FUNCTION OF RESOURCE RESTRICTIONS RELATING TO A COMMUNICATION SESSION - The invention relates to a method of notifying an Application Function (AF) in a communications network of resource restrictions relating to a communication session. The network includes a Policy and Charging Rules Function (PCRF) for authorising and controlling flows of data in the session. In the method the AF sends an authorisation request to the PCRF for establishing the communication session. The authorisation request includes an indication that the AF is to be notified of resource restrictions for the data flows in the session. The PCRF notifies the AF of the resource restrictions. | 08-26-2010 |
20100223348 | Establishing a Multimedia Communications Session - The invention relates to a method of enabling use equipment to establish a communication session over an IMS network. The communication session is enabled by one or more call/session control functions in the network in accordance with media characteristics that define the network resources to be utilised for the session. The method comprises: receiving with the IMS network a subscriber registration request originating from the user equipment and, in response thereto, sending to the user equipment an identification of allowable media characteristics. | 09-02-2010 |
20110093933 | AUTHENTICATION IN A COMMUNICATIONS NETWORK - A method of authenticating a user in an IP Multimedia Subsystem network, the method comprising receiving from an access network an access identifier defining a terminal's physical location, retrieving from a database a registered access identifier associated with the user; and determining if the received access identifier matches the registered access identifier, and if so then authenticating the user in the IMS network, and if not then performing an alternative authentication method. The method allows a nomadic user in the access network to register with an IP Multimedia Subsystem network. | 04-21-2011 |
20110119357 | Methods and Apparatuses for Terminating an IP Multimedia Subsystem Service When IP Address is No Longer Allocated to the User - A method of terminating an IP Multimedia Subsystem enabled communication service involving a user terminal, the terminal having been allocated an IP address by an access network used by the terminal to access the communication service. The method comprises determining when the IP address is no longer allocated to the user by the access network, and as a consequence of the determination, terminating the IP Multimedia Subsystem communication service. | 05-19-2011 |
20110191482 | Notification of resource restrictions in a multimedia communications network - The invention relates to a method of notifying an Application Function, AF, in a communications network of resource restrictions relating to a communications session. The network includes a Policy and Charging Rules Function, PCRF, for authorising and controlling flows of data in the session. In the method the AF sends an authorisation request to the PCRF for establishing the communication session. The authorisation request includes an indication that the AF is to be notified of resource restrictions for the data flows in the session. The PCRF notifies the AF of the resource restrictions. | 08-04-2011 |