Siemens Aktiengesellschaft

Nokia Solutions and Networks Oy

Kolio Ivanov

Egon Schulz

Michael Faerber

Carsten Ball

Dieter Emmer

Peter Weber

Norbert Metzner

Robert Muellner

Joerg Sokat

In a radio station for mobile communication systems, the reception branches of at least two antenna units having different polarization are monitored in order to acquire statements about the polarization direction of the incident wave. Corresponding to the polarization direction of the incident wave, an adaptive fashioning of the radiation characteristic ensues, this fashioning the polarization direction of the emitted wave according to the weighting of the reception signals of the reception branches for the same communication connection. The connection from a base station to a mobile station in a mobile communication system therefore can be improved with an inventive radio station.

Radio station for mobile communication systems and method for the

In a method for regulating transmission power control of a mobile station, transmission power control occurs based on a hierarchical control system composed of two levels. Long-term transmission power control of the mobile station occurs in the base station on the upper level, which forms a closed control loop comprising a base station and a mobile station. In addition, a statement about decision authority of the lower level is made in the base station and is communicated to the mobile station. Taking the long-term transmission power identified by the base station and taking the statement about the decision authority of the lower level into consideration, the short-term transmission power of the mobile station is calculated on the lower level, which represents a local control loop implemented in the mobile station.

Method for transmission power control of a mobile station

In A speed-dependent hand over procedure for hierarchic cell structures, a check is carried out given a mobile station traveling into A radio coverage domain of a micro cell to see whether the radio coverage of the mobile station with respect to the micro cell has significantly or insignificantly improved within a time interval. In case of a significant improvement, the micro cell is blocked for the rapidly traveling mobile station.

Mobile speed dependent handover techniques in hierarchical mobile radio

In a speed-dependent hand over method for hierarchic cell structures, a finding is made to whether mobile stations have traversed a radio coverage domain of a micro cell within a time interval. When the mobile stations are still in the radio coverage domain with respect to the micro cell after the time interval, then a hand over for the appertaining mobile stations into the micro cell is requested.

Growing community of inventors

Munich, Germany

Kolio Ivanov