Abstract: Apparatus, and associated method, for improving packet data communications upon a communication path including a radio-link. Determination is made of the conditions on the radio-link when selecting the optimal size of a transmission window within which to transmit packets of data. And, retransmission time-out values are also selected responsive to the indications of the radio-link conditions.

Abstract: A method and a GGSN support node for sending data packets to a mobile station in a mobile communications system from an external communication system. The GGSN receives data packets from the external communication system in a first plurality of data flows which it maps to a second plurality of data flows in the mobile communications system. It establishes at least one filter for controlling the mapping and associates the filter with the mobile station. It also maps at least one of the data flows on the basis of the filter and configures the filter on the basis of information which preferably originates from the mobile station.

Abstract: A system, apparatus and method for establishing circuit-switched (CS) communications in packet-switched (PS) multimedia networks such as IMS, and providing services via the PS networks to CS domain users. A dialog is established between terminals through the PS multimedia network. A service is provided to at least one of the terminals by way of the dialog. CS bearer information, including an indication that a communication flow is requested via a CS network, is communicated between the terminals by way of the dialog. A communication flow via the CS network is effected between the terminals as directed by the CS bearer information. IMS or other PS multimedia network services can thus be provided to users otherwise communicating via the CS-domain.

Abstract: The aspects of invention relates to determining a bit rate in a communication device, the communication device including a protocol stack for transferring information to a second communication device, the protocol stack including a protocol layer, the protocol layer providing a logical channel for transferring first information through the protocol layer. According to the method, the first information is transferred through the protocol layer via the logical channel and the bit rate in the logical channel is determined on the basis of second information obtainable from the protocol layer. The invention also relates to a method of determining a bit rate when the communication device is receiving information as well as corresponding transmitting and receiving communication devices.

Abstract: The invention relates to a method for handling a request by a first communication device 11 connected to a network of a communication system to establish a packet switched session with a second, wireless communication device 12, which session requires the second communication device 12 to be connected to a network which enables the establishment of the session. In order to enable an enhanced handling of such a request, it is proposed that it is first determined whether the second communication device 12 is currently connected to such a network. In case it is determined that the second device 12 is not connected to such a network, a corresponding indication is transmitted to the first device 11. The user of the first device 11 is then informed via the first device 11 that the requested session cannot be established. The invention relates equally to a communication system enabling such a method and to corresponding elements 11, 13 of such a system.

Abstract: A system, apparatus and method for establishing circuit-switched (CS) communications in packet-switched (PS) multimedia networks such as IMS, and providing services via the PS networks to CS domain users. A dialog is established between terminals through the PS multimedia network. A service is provided to at least one of the terminals by way of the dialog. CS bearer information, including an indication that a communication flow is requested via a CS network, is communicated between the terminals by way of the dialog. A communication flow via the CS network is effected between the terminals as directed by the CS bearer information. IMS or other PS multimedia network services can thus be provided to users otherwise communicating via the CS-domain.

Abstract: A system, apparatus and method for establishing circuit-switched (CS) communications in packet-switched (PS) multimedia networks such as IMS, and providing services via the PS networks to CS domain users. A dialog is established between terminals through the PS multimedia network. A service is provided to at least one of the terminals by way of the dialog. CS bearer information, including an indication that a communication flow is requested via a CS network, is communicated between the terminals by way of the dialog. A communication flow via the CS network is effected between the terminals as directed by the CS bearer information. IMS or other PS multimedia network services can thus be provided to users otherwise communicating via the CS-domain.

Abstract: The invention relates to a method for transmitting multimedia messages to a wireless terminal (MS1) in a data transmission system which comprises at least one mobile communication network (HPLMN) and at least one multimedia message server (MMSV). In the method, each wireless terminal (MS1) connected to the mobile communication network (HPLMN), is allocated an address specifying said wireless terminal (MS1), and at least one data transmission connection is activated for said wireless terminal (MS1). Information on the activation of the data transmission connection for said terminal (MS1) is transmitted to the multimedia message server (MMSV).

Abstract: A method and a GGSN support node for sending data packets to a mobile station in a mobile communications system from an external communication system. The GGSN receives data packets from the external communication system in a first plurality of data flows which it maps to a second plurality of data flows in the mobile communications system. It establishes at least one filter for controlling the mapping and associates the filter with the mobile station. It also maps at least one of the data flows on the basis of the filter and configures the filter on the basis of information which preferably originates from the mobile station.

Abstract: A method and a GGSN support node for sending data packets to a mobile station in a mobile communications system from an external communication system. The GGSN receives data packets from the external communication system in a first plurality of data flows which it maps to a second plurality of data flows in the mobile communications system. It establishes at least one filter for controlling the mapping and associates the filter with the mobile station. It also maps at least one of the data flows on the basis of the filter and configures the filter on the basis of information which preferably originates from the mobile station.

Abstract: A method is disclosed for a mobile station for performing a handover from a first network connection to a second network connection. A mobile telecommunication system provides for non-real time telecommunication connections over a radio interface between mobile stations and the fixed parts of the mobile telecommunication system. At least one active non-real time telecommunication connection is between a mobile station and the fixed parts of the mobile telecommunication system is suspended (704) before performing a handover (702?) from the first network connection to the second network connection. After the new connection has been established the suspended non-real time telecommunication connection are resumed (705).

Abstract: A system, apparatus and method for establishing circuit-switched (CS) communications in packet-switched (PS) multimedia networks such as IMS, and providing services via the PS networks to CS domain users. A dialog is established between terminals through the PS multimedia network. A service is provided to at least one of the terminals by way of the dialog. CS bearer information, including an indication that a communication flow is requested via a CS network, is communicated between the terminals by way of the dialog. A communication flow via the CS network is effected between the terminals as directed by the CS bearer information. IMS or other PS multimedia network services can thus be provided to users otherwise communicating via the CS-domain.

Abstract: Apparatus, and associated method, for improving packet data communications upon a communication path including a radio-link. Determination is made of the conditions on the radio-link when selecting the optimal size of a transmission window within which to transmit packets of data. And, retransmission time-out values are also selected responsive to the indications of the radio-link conditions.

Abstract: Apparatus, and associated method, for improving packet data communications upon a communication path including a radio-link. Determination is made of the conditions on the radio-link when selecting the optimal size of a transmission window within which to transmit packets of data. And, retransmission time-out values are also selected responsive to the indications of the radio-link conditions.

Abstract: In a telecommunication device the handling of data to be transmitted proceeds according to a protocol stack having a L3 layer and a MAC layer. For handling data flows between the L3 layer and the MAC layer the following steps are perfomed: a flow of data to be transmitted coming from the L3 layer is demultiplexed into a number of component data flows, each component data flow having a certain Quality of Service requirement, the component data flows are arranged into groups where the Quality of Service requirement of each component data flow in a group is similar to the Quality of Service requirements of the other component data flows belonging to the same group, the component data flows are multiplexed groupwise into multiplexed data flows and the multiplexed data flows are outputted to the MAC layer.

Abstract: The invention relates to a method for handling a request by a first communication device 11 connected to a network of a communication system to establish a packet switched session with a second, wireless communication device 12, which session requires the second communication device 12 to be connected to a network which enables the establishment of the session. In order to enable an enhanced handling of such a request, it is proposed that it is first determined whether the second communication device 12 is currently connected to such a network. In case it is determined that the second device 12 is not connected to such a network, a corresponding indication is transmitted to the first device 11. The user of the first device 11 is then informed via the first device 11 that the requested session cannot be established. The invention relates equally to a communication system enabling such a method and to corresponding elements 11, 13 of such a system.

Abstract: A data structure including specific services such as presence, messaging or the like, and including a group management service, as well as a device and a system using this data structure, is modified to provide specific services within the group management service rather than necessarily as separate services, thereby eliminating the need to invoke both the specific service and group management and to reduce signaling.

Abstract: A link between a mobile station operating within a universal mobile telecommunications system (UMTS) is checked either at the mobile station itself or within a Radio Network Controller (RNC) of the UMTS to determine an error rate greater than a threshold. If found to be operating at greater than the error rate threshold, the bitrate of the link is reduced. If more than one PDP context is present then the PDP contexts can be reduced one at a time, according to selected criteria, until the error rate is reduced below the threshold. Once the interference is reduced to a level that will support the services at their former level, the mobile station can once again begin freely operating at a bitrate between the minimum guaranteed bitrate and a maximum bitrate, commencing randomly if under the control of the mobile station, or according to a timed sequence if controlled from the RAN.

Abstract: An implementation of packet data control protocol (PDCP) parameter negotiation in a universal mobile telephone communications service (UMTS) which can also be used to improve GSM/GPRS XID negotiation methods, where the timing for exactly when the new parameters are to take effect must be known includes either a GPRS-type reset solution or a PDCP-header based change indicator solution. In the GPRS-type reset solution, PDCP negotiations are made and then connections are reset to put into effect the new PDCP parameters for use. The second solution is to add a change indicator, e.g., a bit (C-bit) to the PDCP-PDU's header part. The originator informs using this bit that new parameter values are to take effect for use.

Abstract: The invention relates to a method for allocating resources for a data transmission connection between a wireless communication device and a mobile communication network. In the method, the information to be transmitted is divided into at least a first and a second quality of service class. For the data transmission connection, either a fixed resource or a dynamic resource is allocated on the basis of the quality of service class in which the information to be transmitted in the data transmission connection is classified.