Alcatel Lucent

Alcatel N.v.

Alcatel Alsthom Compagnie Generale D'electricite

Edgar Wolfram Kuhn

Anton Ambrosy

Kaspar Dutting

A method for taking a handover decision in a cellular communications system, wherein a communications network detects a need for initiating a handover for at least one mobile device from a source cell to a selected target cell, and further calculates a virtual traffic load indicator for the source cell after a virtual handover execution of the mobile device from said source cell to said target cell, calculates a virtual traffic load indicator for the target cell after a virtual handover execution of the mobile device from said source cell to said target cell, compares the calculated virtual traffic load indicators, and takes a decision to execute or not to execute said handover according to said comparison.

Decision mechanism for handover execution in a cellular radio communications system

Optical semiconductor component with deep ridged waveguide

A process for fabricating multisegment ridge waveguides is disclosed which is self-aligning and avoids unnecessary masking and etching steps. The process essentially comprises five steps: removing, in a starting layer structure, a top layer (DS) on both sides of areas where segment transitions (ST) are to be formed; depositing a metal contact layer (KM); etching a desired ridge-waveguide structure (R); covering the entire area except the segment transition areas with photoresist; and removing the contact layer (KM) in the segment transition areas by a lift-off step, thus providing electrical separation between the individual segments.

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Stuttgart, Germany

Edgar Wolfram Kuhn