Abstract: The invention relates to a wireless network comprising a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are provided for changing the respective key necessary for the coding at certain instants. The radio network controller sends a message about a change of the key coded with an old cipher key to a terminal. The terminal responds with a message coded with a new cipher key as an acknowledgement for the new cipher key.

Abstract: A wireless network includes a radio network controller and a plurality of terminals which are provided for transmitting useful data over logic channels which have different priorities, which are mapped onto exactly one transport channel, respectively. The data transmission over a plurality of combined (multiplexed) transport channels is determined by transport format combinations. The respective most favorable transport format combination is selected at the beginning of a radio frame, given the packet data units waiting in the buffers of the logic channels. Further, the logic channels are sorted while their priorities, their buffer occupancy and the transmission time interval of the associated transport channel are taken into account.

Abstract: The invention relates to a wireless network comprising a radio network controller (1) and a plurality of assigned terminals (2 to 9) for exchanging useful data and control data, which terminals respectively have a buffer for buffering data packets to be transmitted to the radio network controller (1) via a contention channel, and a measuring device for measuring the occupancy level of at least one buffer. A terminal (2 to 9) is provided for transmitting a signaling sequence at a start time respectively predefined by the radio network controller (1) when an occupancy threshold of a buffer or various buffers is exceeded. The radio network controller (1) includes a device for correlating a signaling sequence sent by a terminal (2 to 9) and for detecting the pulse developed from a received and correlated signaling sequence.

Abstract: A wireless network employing a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are provided for changing the respective key necessary for the coding at certain instants. The radio network controller sends a message about a change of the key coded with an old cipher key to a terminal The terminal responds with a message coded with a new cipher key as an acknowledgement for the new cipher key.

Abstract: The invention relates to a wireless network comprising a radio network controller and a plurality of assigned terminals which are provided for coding certain data to be transmitted over traffic and control channels and which are provided for changing the respective key necessary for the coding at certain instants. The radio network controller sends a message about a change of the key coded with an old cipher key to a terminal. The terminal responds with a message coded with a new cipher key as an acknowledgement for the new cipher key.

Abstract: The invention relates to a communication system which operates in the asynchronous transfer mode (ATM) and which comprises several nodes which form a network and are partly coupled to one another and to terminals, and which each comprise a switch and a control software at least for controlling the relevant coupling field and for the signaling. At least one object of the control software contains detection points in certain states. An object for event handling of the control software is provided for further processing when a detection point is reached. The object for event handling receives data via a special channel from at least one terminal or from another node.

Abstract: A communication system and, method are therefor, are provided. The system includes a control circuit which includes a message-based operating system and application software. The system also includes a device and/or software for exchanging/replacing application software. When a portion of the application software is to be exchanged, an old software component to be exchanged carries out a state transfer, stops at a certain point, and directs available messages to a new software component. The software components include an application thread and an exchange thread. The old software component gathers its state after the application thread has stopped at an exchange point. The exchange thread then transmits the state through an exchange port to the new software component.

Abstract: The invention relates to a wireless network comprising a radio network controller and a plurality of assigned terminals which are provided for transmitting useful data over logic channels which have different priorities, which are mapped onto exactly one transport channel, respectively. The data transmission over a plurality of combined (multiplexed) transport channels is determined by transport format combinations. The subject matter of the invention is a procedure for selecting the respective most favorable transport format combination at the beginning of a radio frame, given the packet data units waiting in the buffers of the logic channels, as well as a procedure for sorting the logic channels while their priorities, their buffer occupancy and the transmission time interval of the associated transport channel are taken into account.

Abstract: The invention relates to a wireless network comprising a radio network controller (1) and a plurality of assigned terminals (2 to 9) for exchanging useful data and control data, which terminals respectively have a buffer for buffering data packets to be transmitted to the radio network controller (1) via a contention channel, and a measuring device for measuring the occupancy level of at least one buffer. A terminal (2 to 9) is provided for transmitting a signaling sequence at a start time respectively predefined by the radio network controller (1) when an occupancy threshold of a buffer or various buffers is exceeded. The radio network controller (1) includes a device for correlating a signaling sequence sent by a terminal (2 to 9) and for detecting the pulse developed from a received and correlated signaling sequence.

Abstract: The invention relates to a wireless network comprising a radio network controller and a plurality of assigned terminals which are used for coding certain data to be transmitted in dependence on a key that can be changed at certain intervals. In the case of a wrongly used key, a terminal sends a predefined number of status messages after all the queues contained in the terminal have been emptied or when a predefined minimum filling level is fallen short of and releases all the resources used when no reconfiguration message has been received from the radio network controller after the status messages have been sent.

Abstract: A communication system with a control circuit is disclosed. The circuit includes an operating system for exchanging messages and user software, and a device for exchanging software. For a software component to be exchanged in a few milliseconds, a newly loaded software component, corresponding to a successor component, obtains states and messages from a service port of a stopped software component that is to be replaced, corresponding to a predecessor component. The successor component is restarted with the transferred states and messages.