Abstract: Directional beam generative apparatus, and an associated method, for a radio communication station forms directional antenna beam patterns for the communication of communication signals with remote communication stations operable in a TDMA communication system. Channels are allocated for effectuation of communications between the radio communication station and the remote stations responsive to indications of locations at which the remote communication stations are indicated to be positioned. Remote communication stations indicated to be positioned within a selected area are allocated to channels formed upon a single carrier.

Abstract: A radio station includes a base station for wireless telecommunication to/from mobile stations. The radio station is expandable with several units, at least one of which includes a receiver, a transmitter, and a device for diversity reception, and each of which includes an antenna that is arranged at a predetermined distance from on or several antennas in the other units. The antennas forming part of each unit are adapted for reception with space diversity in cooperation with at least one antenna in any of the other units. The antennas within each unit can receive signals with different directions of polarization. An optimum input signal is input to the receiver by evaluating the input signals from the antennas in the diversity reception device. The input signals originate from the reception with the antennas which are arranged at different positions in space and also from the reception with different directions of polarization.

Abstract: Device for cooling of electronics units (1) carried by a support structure (2) with flat sections (3, 4, 5) and comprising several flat antenna elements (6). The support structure (2) and the flat antenna element (6) extend generally in the vertical direction and present an intermediate cavity (16) having an air inlet opening arranged at a lower region and an outlet opening arranged at an upper region. In this manner, air is forced to flow through said cavity by means of self-circulation.