Infineon Technologies Ag

Siemens Aktiengesellschaft

Ulrich Boetzel

Christian Kranz

André Neubauer

Bernd Schmandt

Michael Warmers

Michael Huetwohl

Markus Hammes

Roland Hellfajer

Thomas Convent

Frank Gersemsky

Dieter Brueckmann

Rüdiger Lorenz

Rüdiger Pott

Johannes Oesterreicher

Andreas Funke

A data transmission system transmits first data bursts from a base station to mobile stations. The first data bursts at least in some cases contain two or more data blocks that are intended for different mobile stations. The data transmission system furthermore transmits second data bursts from at least one of the mobile stations to the base station and produces guard time intervals between successive data bursts.

Data transmission system, frame structure, and method for radio transmission of data

Method for transmission of data between a master station and a slave station, and a data transmission system Data slots are interchanged in accordance with a time slot method between a master station (B) and the slave station (M) in a data transmission system. The slave station (M) may assume various operating modes during a connection. The operating mode of the slave station (M) is identified by the data transmission system, and the slave station (M) is addressed by the master station (M), by means of a time addressing scheme which is dependent on the identified operating mode of the slave station (M).

Method for transmission of data between a master station and a slave station, and a data transmission system

In a method for avoiding transients during switching processes in integrated circuits, a module of the integrated circuit is switched from a first operating state to a second operating state, a load change occurring thereby. In this case, it is ensured that the occurring quotient of load change and time duration for the transition from the first operating state to the second operating state does not exceed a predetermined limit value, thereby reducing or avoiding transients associated with such switching.

Method for avoiding transients during switching processes in integrated circuits, and an integrated circuit

A frequency hopping method for a mobile radio system by which the carrier frequency of the base station () and of one or more mobile stations () of the mobile radio system is temporally changed in defined intervals according to a pre-determined frequency hopping scheme. Preferably, certain operational conditions of the mobile radio system are monitored and the frequency hopping scheme is adaptively adjusted according thereto. As a result, during operation, a frequency hopping sequence can be adjusted to the present operational conditions, especially to the influence of possible interfering signal.

Frequency hopping method for a mobile radio telephone system

A method for controlling antennas of a receiving device in a radio system, especially in a mobile radio system, in which at least one change is made using a frequency hopping method between a number of transmission frequencies that are provided for the transmission of radio signals. A table is formed with data relating to the reception quality of each antenna. This data is evaluated on each change to the transmission frequency, and one of the antennas is selected as a function of the result of the evaluation. The method is especially suitable for use in systems using slow frequency hopping methods (slow frequency hopping systems), such as bluetooth or WDCT systems.

Method for controlling antennas of a receiving device in a radio system

A method and an apparatus for transmitting a continuous data stream in packetized form include a storage device in which the data can be temporarily stored for specific times before and after their transmission. The data are temporarily stored in a cyclic buffer. Therefore, the complexity to be accepted for error-free data transmission can be minimized.

Method and apparatus for transmitting a continuous data stream in packetized form

In order to increase the range of a repeater in a DECT-TDMA system without shortening the time spacing between transmission and reception time-slots (TX, RX), the transmission time-slots (TX) with mobile part functionality (MT) are delayed in time by a bit plurality t.

Method for increasing the range in a time-slot method

A TDMA radio system, for example according to the DECT standard, requires counters which control actions. A process and an apparatus for action control in a time slot method include three counters, a reference counter, an even bit working counter for actions in time slots with even time slot numbers, and an odd bit working counter for actions in time slots with odd time slot numbers. The two working counters are loaded with an offset when the reference counter reaches specific counts. Specific actions can be initiated when the two working counters reach specific counts.

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Kaarst, Germany

Ulrich Boetzel