Abstract: The invention relates to a radio access network (RAN) for a mobile radio communications system and to an operating method therefor. The radio access network has a number of first nodes (UPS1, UPS2,), which are each assigned to a subarea (A, a) of a geographical area, and which serve for exchanging useful data between terminals (UE), which are located in the relevant subarea, and a primary network (CN). The radio access network also has at least one second node (RCS1, RCS2), which comprises a number of signaling functionalities (UEF) for exchanging signaling data with the each respective terminal (UE). The second node (RCS1, RCS2, . . . ) is connected to a number of first nodes (UPS1, UPS2, . . . ) in order to exchange signaling data with a terminal (UE) via those first nodes (UPS1, UPS2, . . . ) with which this terminal (UE) exchanges useful data.

Abstract: A mobile radio telephone system has at least one first radio cell, several radio cells to that are adjacent to the first radio cell and base stations, each of the latter covering one of the radio cells. A sub-group of the adjacent radio cells is determined depending on the position of a mobile station in the first radio cell. The mobile station subsequently measures a quality parameter of only those signals of the base stations associated with the sub-groups of the adjacent radio cells. One possible advantage is that the time required to carry out the measurements is relatively short as a result of the reduction of their number.

Abstract: The invention relates to an access network for transmitting data packets between a network (NW) and a terminal (UE) via a radio communication system, and to a method for operating the same. The access network (AN) comprises a number of nodes (UPS) that are each linked with at least one radio station of the radio communication network and that are adapted to convert data stemming from the network (NW) to a format that is compatible with the transmission in the radio communication system. A permanent first address is defined for the terminal (UE). Data packets that are directed to the first address are forwarded to the address of a processor (VMH) allocated to the terminal (UE), said processor emulating the terminal (UE) in the access network and tracing its movement. The processor behaves towards the network (NW) as a mobile terminal that is compatible with a mobility protocol (Mobile IP, Cellular IP, IPv6).

Abstract: A mobile station communicates in a communication network formed of a core network and a radio access network with at least one first and one second radio network control device. The management of the mobile station or the transmission of data to be transmitted to the mobile station is handed over from the first radio network control device to the second radio network control device. To facilitate relocation, data that arrive after handover at the first radio network control device or that are temporarily stored there are transmitted to corresponding functionality of the second radio network control device using a functionality of the first radio network control device and are forwarded from the second radio network control device to the mobile station.

Abstract: The invention relates to a radio access network (RAN) for a mobile radio communications system and to an operating method therefor. The radio access network has a number of first nodes (UPS1, UPS2,), which are each assigned to a subarea (A, a) of a geographical area, and which serve for exchanging useful data between terminals (UE), which are located in the relevant subarea, and a primary network (CN). The radio access network also has at least one second node (RCS1, RCS2), which comprises a number of signaling functionalities (UEF) for exchanging signaling data with the each respective terminal (UE). The second node (RCS1, RCS2, . . . ) is connected to a number of first nodes (UPS1, UPS2, . . . ) in order to exchange signaling data with a terminal (UE) via those first nodes (UPS1, UPS2, . . . ) with which this terminal (UE) exchanges useful data.