Siemens Aktiengesellschaft

J&uuml;rgen Kockmann

Uwe Sydon

Olaf Dicker

Hermann-Josef Terglane

The invention proposes a method and an apparatus for the radio transmission of user data, arranged in data words of a defined length, in time-division multiplex frames having active time slots in which data are transmitted and inactive time slots in which no data are transmitted. The user data are stored temporarily in a memory at a first data rate, and are read out from the memory and converted into the time-division multiplex frames at a second, greater data rate. During the time period from the beginning of an active time slot to the beginning of the subsequent active time slot, n (n&equals;a whole number &gE;1) data words of the user data are thereby respectively stored. By synchronizing the storing and the reading out of the user data, these data can be transmitted with the smallest possible delay in an arbitrarily selected time slot of the time-division multiplex frame.

Method and device for radio transmission

The present invention is directed to a method and to a system for regulating the transmission power of a mobile station ( ) of a mobile radiotelephone system in which information are transmitted in various carrier frequencies with a frequency hopping method. The fixed station ( ) comprises a receiver ( ) for receiving information that are transmitted from a mobile station ( ). The fixed station ( ) also comprises a detector ( ) for detecting the transmission quality of the transmitted information. When the transmission quality is good and the information were transmitted with a high transmission power, a first message for lowering the transmission power is sent to the mobile station and, when the transmission quality is poor and the information were transmitted with a low transmission power, a second message for raising the transmission power is sent to the mobile station. The present invention serves the purpose of lowering the power consumption in a mobile station of a mobile radiotelephone system.

Growing community of inventors

Gronau, Germany

Jürgen Kockmann

Growing community of inventors

Gronau, Germany

J&uuml;rgen Kockmann

Jürgen Kockmann