Abstract: The invention relates to a method and arrangement whereby the location of a mobile station (MS, 101) operated in a packet-switched (GPRS) connection can be defined. For the duration of the location measurements, the GPRS mobile station is switched to a circuit-switched connection in the cellular network (11). The invention also comprises the transmission of the accurate map data related to the mobile station as WAP pages to the mobile station for display.

Abstract: The invention describes serving, on application level, services between IP networks supporting addresses which require translation, wherein a service is processed between a common address space common to IP networks and a specific address space specific to an IP network via a first interface which is accessible from the specific address space and a second interface which is accessible from the common address space.

Abstract: A packet mode (e.g. IP) group communication service layer is provided on top of a standard mainstream cellular radio network. Conceptually, the group communication layer includes a pair of basic logical entities, an application bridge and a call processing server (CPS). The bridge and the CPS run group service applications which communicate with group service application(s) in a mobile station MS over the IP connections provided by the radio network. The CPS is responsible for control plane management of group communications. The bridge is responsible for the real-time distribution of VoIP packets to the user terminals according to their group memberships over valid connections programmed by the CPS.

Abstract: A packet mode (e.g. IP) group communication service layer is provided on top of a standard mainstream cellular radio network. Conceptually, the group communication layer includes a pair of basic logical entities, an application bridge and a call processing server (CPS). The bridge and the CPS run group service applications which communicate with group service application(s) in a mobile station MS over the IP connections provided by the radio network. The CPS is responsible for control plane management of group communications. The bridge is responsible for the real-time distribution of VoIP packets to the user terminals according to their group memberships over valid connections programmed by the CPS.

Abstract: An application server for controlling communication of packet data with a plurality of communication devices in a multicasting session is disclosed. The application server is configured for receiving information regarding a packetization parameter that is desired by at least one of the communication devices for reception of packet data, for assigning a different value for the packetization parameter for use in a multicasting session, and for controlling communication of packet data to the plurality of communication devices in the multicasting session based on the different packetization parameter.

Abstract: A packet mode (e.g. IP) communication service layer is provided on top of a standard mainstream cellular radio network. Conceptually, the communication layer comprises a pair of basic logical entities, an application bridge and a call processing server (CPS). The bridge and the CPS run packet mode communication service applications, which communicate with packet mode communication service application(s) in a mobile station MS over the IP connections provided by the radio network. The CPS is responsible for control plane management of communications. Embedded user-plane signaling is used for connecting call parties for a packet mode speech two-party (one-to-one) communication. Embedded signaling in the user-plane's bearer makes it unnecessary to reserve another bearer for the control plane's signaling, which saves network resources and allows to achieve a short connection setup time.

Abstract: A session set-up for communicating data via a data network is disclosed. First, a session establishment between a communication apparatus and a serving entity is requested for a service from the serving entity supporting the service. Then, when a requirement of a user connection for the service is determined, an association with a data network for the service is activated via a core network.

Abstract: A data transmission method transmits data to a group of receiving communication devices in a communication system comprising at least one cellular network. The method includes defining, by an application server situated beyond a cellular network, a group of receiving communication devices in the cellular network, the application server having no visibility to locations of receiving devices in the cellular network. The method also includes receiving, in a broadcast/multicast network entity configured to provide broadcast and multicast services in the cellular network, data to be transmitted from the application server to the group. The method also includes transmitting the data from the broadcast/multicast network entity to the group using broadcast and/or multicast transmission. Furthermore, a network entity in a cellular network and a communication system are provided configured to implement the method.

Abstract: The invention relates to dynamically creating talk groups in a communications system. A new dynamic group is created by a user who defines a group definition message in his subscriber station. This group definition message uniquely identifies the new group in the system, and can be distributed to the intended group members using the usual messaging facilities available in the specific communications system. The recipients of the group definition message can store the message in their subscriber stations for subsequent use. Thus, group creation and membership management are handled at user level without interacting with the system. The role of the system is restricted to establishing a means for communication in the group whenever there are users who have activated the group for communication.

Abstract: The invention relates to a method of a network arrangement for establishing a data transfer connection between a workstation equipped with a SIP application, but residing in a first network not supporting SIP protocol, and a second workstation or terminal, advantageously a mobile terminal, residing in a network supporting SIP protocol. A connection is established by creating a TCP tunnel from a SPWM agent in the first network to a SPWM connection point in the second network. The invention relates also to a computer program implementing the SPWM agent and SPWM connection point.

Abstract: The invention relates to method applicable in a packet-switched cellular network for voice connections, by which method a new dedicated channel can be established quickly using the existing dedicated channel of the voice connection. The establishment of the new dedicated channel utilizes the previous dedicated channel the existence of which is extended by sending to at least the receiving terminals post-speech packets according to the invention. The post-speech packets produce a 2-second delay, approximately, which is sufficient to establish a new dedicated channel between terminals participating in a session.

Abstract: The invention relates to a method of a network arrangement for establishing a data transfer connection between a workstation equipped with a SIP application, but residing in a first network not supporting SIP protocol, and a second workstation or terminal, advantageously a mobile terminal, residing in a network supporting SIP protocol. A connection is established by creating a TCP tunnel from a SPWM agent in the first network to a SPWM connection point in the second network. The invention relates also to a computer program implementing the SPWM agent and SPWM connection point.

Abstract: The invention describes serving, on application level, services between IP networks supporting addresses which require translation, wherein a service is processed between a common address space common to IP networks and a specific address space specific to an IP network via a first interface which is accessible from the specific address space and a second interface which is accessible from the common address space.

Abstract: The invention relates to a method and subscriber equipment of controlling transmission power in the transmitter. The subscriber equipment transmits bursts with different activity. The subscriber equipment forms an average activity of the transmitter, and controls transmission power of the bursts as a function of the average activity of the transmitter.

Abstract: The object of the invention is a method for controlling a data transfer connection, terminal equipment and a data transfer system wherein at least two subscriber stations are connected to one subscriber connection of the data transfer system. The invention can be preferably applied, for example, in Wireless Local Loop networks, i.e. in WLL systems. One idea of the invention is that information relating to subscriber stations which have been connected to the subscriber connection is stored in the data transfer system and this data is exploited in switching an incoming connection to the correct subscriber station and in setting the data transfer procedure of an outgoing connection to correspond to the subscriber station being used. Terminal equipment according to the invention comprises preferably switches (416, 417) which are controllable by the processor of the baseband part (412) for switching the connection to the correct subscriber station.

Abstract: A method of multiplexing different sessions using the same authorized contexts for media, comprising: distinguishing the sessions to be multiplexed, by a device; creating a new session on a control plane; indicating media flows of different sessions; and enabling the sessions to share the same authorized context for media, thus being multiplexed.

Abstract: The invention relates to a method for ensuring the adequacy of transmission capacity in a digital packet-switched cellular network where both voice sample packets and associated header fields are transmitted in real time in one and the same transmission channel. The invention also relates to a terminal employing the method. In the method, the contents of voice sample packets at the beginning of a speech spurt are partly replaced by packet header field data in situations where the combined bit count of voice sample data and packet header data exceeds the transmission capacity of the transmission channel.

Abstract: A packet mode (e.g. IP) group communication service layer is provided on top of a standard mainstream cellular radio network. Conceptually, the group communication layer comprises a pair of basic logical entities, an application bridge and a call processing server (CPS). The bridge and the CPS run group service applications which communicate with group service application(s) in a mobile station MS over the IP connections provided by the radio network. The CPS is responsible for control plane management of group communications. The bridge is responsible for the real-time distribution of VoIP packets to the user terminals according to their group memberships over valid connections programmed by the CPS.

Abstract: A video surveillance system comprises means (700, 800, 900) for monitoring a space under surveillance, the system comprises means (700, 800, 900, 702, 704, 706) for transmitting an alarm message over the radio path to at least one user terminal (170, 908), the system comprises means (702, 802, 902, 1100) for taking a pre-determined number of pictures at pre-determined intervals and the system comprises means (702, 802, 902, 1100) for transmitting pictures that have been processed as required by the transmission method over the radio path to a connecting device and the system comprises means (704, 804, 904) for further transmitting pictures that have been re-processed as required by the transmission method, if necessary, over the radio path to at least one user terminal (170, 908).

Abstract: The invention relates to a protocol converter (14) and a method utilizing the converter, enabling a wireless connection (13) between a cellular network (11) and a terminal to apply a reduced RTP protocol according to the invention, instead of the RFC 1889 protocol, in order to save communications capacity on speech connections.