Abstract: The invention proposes a method and system for handling transmission of packets and/or signalling in a system including a node, e.g. SGSN, for transmitting data packets and/or signalling to another entity or receiving data packets and/or signalling from the another entity, e.g. GGSN. The node has a distributed architecture which includes at least two processing units each having their own address or identifier and being able to transmit and/or receive packets and/or signalling to or from the another entity. The node is adapted to send, in case one or more of its processing units is at least temporarily no longer usable or to be used for sending or receiving packets and/or signalling, information to the another entity for informing the another entity thereon. The information sent from the node to the another entity may contain an address or identifier of another processing unit to be used for receiving and transmitting packets and/or signalling instead of the processing unit no longer to be used.

Abstract: The invention relates to the packet switched portion of a mobile communications system in which two or more network operators share the same network. To allow the operators to compete with each other, they usually have a gateway node (GGSN1, GGSN2) of their own, although they share the serving node (SGSN1). In order to enable the selection of the gateway node (GGSN1, GGSN2), the invention involves maintaining information about predefined partner networks, i.e. shared networks an operator has in addition to its own networks. On the basis of the information a mobile station (MS2) can be connected to a gateway node (GGSN2) of its home network (PLMN2), provided that the visited network (PLMN1) is a partner network of the home network (PLMN2). A visiting mobile station from outside the partner networks, however, can be connected to the visited gateway node (GGSN1).

Abstract: The present invention relates to a method for handling of messages between a terminal and a data network, wherein message of a specific protocol are handled using a correspondingly defined specific contexts for messages of said protocol, and wherein messages based on the same specific protocol relate to different service categories, said method comprising the steps of: receiving a message at said network, analyzing said service category of said received message, and assigning a different specific context to said messages dependent on the analyzed service category. The present invention also relates to a network control entity, an access node and a network comprising the same.

Abstract: A method, system and network element for forwards a terminal identity from a first core network node to a second core network node via a common radio access network. The common radio access network is arranged to incorporate a derived terminal identity received from the first core network node into a signaling message transmitted to the second core network node. The second core network node may then use this terminal identity to address the concerned terminal device.

Abstract: The present invention relates to a method, system and network element for providing an address transition if a connection point at one end of a connection is changed from a first network node to a second network node of a cellular network. An address information and at least one alternative address information are transmitted in a signaling message from said first network node to said second network node. One of said address information and said alternative address information is selected at the second network node and used for re-establishing said connection towards the other end of said connection. Thereby, the new point of connection is allowed to re-establish the connection towards the other end of the connection, even if it can only communicate using one of the two addresses. Furthermore, signaling messages, e.g. messages relating to charging, lawful interception, and/or customized applications, received from different network nodes can be correlated based on the alternative addresses.

Abstract: A packet data network system according to the present invention comprises a plurality of gating means (GGSN) via which data can be routed to a destination address at an external network (PDN), serving means (SGSN) and an end station (MS) for requesting, from the serving means, the establishment of a connection to a certain access point (APN). The serving means are arranged to select gating means supporting this access point from the plurality of gating means and to establish a connection between the end station and an external network through the selected gating means, wherein the connection request is accepted and the connection is established on the basis of at least one acceptance list.

Abstract: The present invention provides a mobile network for handling multiple subscribers having the same calling line identity. Each multiple subscriber has an individual mobile subscriber number and a common mobile subscriber number that can be used to replace the individual mobile subscriber number. One mobile subscriber has an identical individual and common mobile subscriber number, and the mobile network receives a mobile subscriber number from a multiple subscriber. The mobile network has a terminal management server that determines whether the mobile subscriber number is either the individual mobile subscriber number or the common mobile subscriber number. Each individual mobile subscriber number and common mobile subscriber number is a Mobile Subscriber Integrated Services Digital Network (MSISDN) number. The mobile subscriber number is used during a location update procedure.

Abstract: Routing packets belonging to different quality of service flows in a packet data network system is described. For each application initiated by a subscriber equipment with an associated quality of service flow in a multi-session connection settings of a network node hosting the application are obtained. From the obtained settings configuration information are determined and packets are routed from the network system to the subscriber equipment for each initiated application in accordance with the configuration information.

Abstract: The present invention concerns a method for transmitting application packet data via a first packet data network between a terminal and a second packet data network, said application packet data being transmitted using an application protocol operated on top of a protocol stack, said protocol stack comprising plural individual stacke protocol layers adopted for said transmission within said first packet data network, wherein said application packet data are addressed to the terminal and distinguishable according to a service type implemented for said terminal using said application, the method comprising the steps of: detecting said service type, and dependent on the transmission direction of said application packet data, removing and/or adding at least one of said plural individual protocol layers for a specific one of detected service type. The present invention also concerns accordingly adapted terminals and network nodes.

Abstract: A security procedure for a Universal Mobile Telephone Service (UMTS) mobile communication system includes detecting a communication failure between a Radio Network Controller (RNC) which controls radio coverage within a prescribed geographical area and a Mobile Station (MS) in the geographic area, authenticating the MS and setting a new security parameter in response to the communication failure. The security parameter to be changed may be a ciphering key CK or an integrity key IK. Moreover, the steps of authenticating and setting a new security parameter may be performed separately or simultaneously.

Abstract: There is disclosed a method of paging a user equipment in a paging area served by first and second serving nodes respectively associated with first and second radio technologies, comprising receiving a paging request at one of said serving nodes, and selectively paging the user equipment from at least one of said serving nodes.

Abstract: The invention relates to methods and apparatus for controlling traffic congestion of communication traffic in a communication network. The network includes a first node which is operable to receive communication traffic in the form of data from one of more sending nodes and to pass that data to one or more receiving nodes. The method includes monitoring the possible output data rate of the first node and detecting if the possible output data rate becomes smaller than a maximum data rate value and responsive to that monitoring step performing congestion control whereby the data throughput of a flow of data through the first node is decreased.

Abstract: The invention relates to a method and a communication system comprising first network element, e.g. portable terminal, connectable to a second network element. One of selectable modes is used for communication. A network element is adapted to perform a mode selection procedure for selecting the same mode for bidirectional communication between the network elements. The mode selection ensures the use of one and the same mode in uplink and downlink direction and thus enables e.g. IP telephony in UMTS using SIP protocol. The invention further provides an apparatus, and an associated method, for facilitating a VoIP communication session by way of a radio link with a mobile station. The mobile station forms a QoS (Quality of Service) information element for communication to a radio access network portion. The QoS information element is indicating whether to remove packet header information of the data packets to be communicated upon the radio link pursuant to the communication session.

Abstract: The invention proposes a system and method for providing a connection in a communication network which comprises several network elements and is adapted to route a connection via a first network element such as a radio network controller and one or more of alternatively selectable second network elements such as serving nodes. The network comprises a network element which stores a list of selectable second network elements. The list is accessed using an identifier identifying a routing or location area or a desired second network element. The list can be stored in a DNS server which returns to an inquiring network element such as a radio network controller, e.g. IP addresses of serving nodes capable of serving a routing or location area of a connection originating or terminating network element. The connection originating or terminating network element may also be adapted to send an identifier identifying a specific network element such as an SGSN to which it desires to be connected.

Abstract: The invention relates to a method of transmitting packet data from a first subsystem to a wireless terminal device via the network node of a second subsystem. In the method, at least one filter is formed to guide mapping of at least one data flow of the first subsystem to at least one data flow of the second subsystem. At least one filter is attached to at least one data flow of the second subsystem. The filter comprises at least part of the interface identifier of the IP address, which at least part of the interface identifier is allocated in the wireless terminal device. Hereby, mapping of the data flow of the first subsystem to the data flow of the second subsystem is performed on the basis of the interface identifiers of the destination IP addresses in the received packets.

Abstract: Method and arrangement for intercepting a target mobile station in a GPRS network. A legal interception node is installed into the land-based portion of the radio network. An “intercepted” status is defined for mobile stations that are to be intercepted. In response to an order from a law-enforcement authority to intercept one of said mobile stations the status of such mobile station is changed to “intercepted” and at least some of the packets originating from such a mobile station or terminated thereto are routed and/or copied from at least one of the support nodes via the legal interception node to the law-enforcement authority.

Abstract: An access point (GGSN) from a mobile communications system to an external system is selected (3) at a service node (SGSN) of the mobile communications system based on at least two or three grounds of selection: the subscription data of a mobile subscriber stored in the mobile communication system or an access point selection data given by a user in a service request (1), or on other grounds. The serving node sends to the access point (GGSN) selected a further service request (4) which includes indication of the grounds of the selection, i.e. whether the access point is selected by subscription, by a user, or based on any other grounds. Thereby the access point is able to distinguish and accept service requests in which the rights of the user are already assured by the subscription, without any security problems. When the request is based on the selection of the access point by the user, or on any other insecure grounds, the access point is able to make any further actions to ensure the security.

Abstract: The advantages of optimal routing are somewhat limited by the tariff requirements requiring that optimal routing must not cause the call to be more expensive to any of the subscribers participating in the call. If the bills of both the calling and the called subscriber are paid by the same company, for example, it is in the interest of the company to minimize the total cost of the call, i.e. the sum of the bills of subscribers A and B. In this invention a condition for bypassing the tariff requirement for direct routing is specified. The calls can be routed directly, for example, within a prespecified user group.

Abstract: In some mobile telecommunications systems reception of calls outside the home network may be very expensive for the called subscriber. For this reason, subscribers are given the possibility to bar incoming calls when roaming outside the home network. On the other hand, when using optimised routing, reception of calls even far from the home network may be very advantageous or even free. Hereby there are no longer any grounds for barring incoming calls. A method is presented in this invention where those network elements can be defined for the subscriber on a location information basis from which incoming calls will be relayed to the subscriber.

Abstract: The present invention relates to a communication system and a method for the same. In the method simultaneous circuit switched and packet switched connections are established between a user equipment and a first element of the communication system. A predefined event is monitored for after initiation of a procedure for handing the circuit switched connection over from the first element to a second element of the communication system. The event is defined to indicate a need for release of resources reserved by the packet switched connection. Subsequent to detection of the event, resources reserved by said packet switched connection at the network side of the system are released.