Opensynergy Gmbh

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Deutschetelekom Ag

Michael Peter

Wilhelm Keusgen

Andreas Kortke

Axel Söding-Freiherr Von Blomberg

Heinz Prantner

Shantanu Singh Bundela

Pierre-Antoine Bernard

Janis Danisevskis

Jan Nordholz

Wilhelm Kreusgen

Matthias Petschick

Julian Vetter

A control unit including at least one processor and at least one memory connected to the at least one processor, a virtualization system, the virtualization system including a scheduler for scheduling a plurality of virtual machines to assign processing time to each of the virtual machines according to a predetermined fixed sequence of virtual machine switches forming a cycle period, which is repeated, the cycle period being the minimum time period after which the scheduling is repeated, wherein the virtualization system and the plurality of virtual machines are real-time systems, the virtual machines having respectively at least one real-time attribute, wherein at least one the real time attribute of a first virtual machine are different to the corresponding real-time attribute(s) of a second virtual machine, wherein predetermined fixed sequence of virtual machine switches is calculated based on the at least one real time attribute.

Control unit having a scheduler for scheduling a plurality of virtual machines, and methods for scheduling a plurality of virtual machines

A method including running a virtualization layer on a processor, the virtualization layer being adapted to assign processor time and memory to first and second guest operating systems running on the virtualization layer, wherein the first guest operating system is a real time operating system, obtaining, by the second guest system, information to be displayed on a display, preparing, by the second guest system, a display frame to be sent to the display, reading, by the first guest system, a portion of the display frame, or retrieving, by the first guest system, information about a read portion of the display frame, and determining, by the first guest system, whether the information sent to the second guest system is correctly generated in the display frame.

Method for operating a control device, control device and computer program product

A method for scheduling guest systems and/or threads in a virtualization system that assigns processor time and memory space to guest systems and including a virtualization system scheduler, the method including running a first guest system that includes at least one first thread and at least one second thread running in the first guest system, and a guest system scheduler that assigns processing time to the at least one second thread, assigning a plurality of time reservations to the first guest system, wherein the plurality of time reservations include a first time reservation associated to one first thread and a second time reservation associated to the guest system scheduler of the first guest system, assigning processor time to the first guest system according to the second time reservation, and assigning processor time to the at least one first thread of the first guest system according to the first time reservation.

System and method for scheduling a plurality of guest systems and/or threads

A system including a processor with a plurality of cores having the same instruction set architecture, at least one memory connected to the processor, a plurality of virtualization systems adapted to run respectively on one core, the plurality of virtualization systems including a first virtualization system adapted to run on a first core and a second virtualization system adapted to run on a second core, wherein the first virtualization system has a first characteristic with a first parameter and the second virtualization system has a second characteristic with a second parameter, wherein the parameter of the first characteristic and the parameter of the second characteristic are incompatible when implemented in a single virtualization system; and communication module for enabling the plurality of virtualization systems to communicate with each other.

System comprising a plurality of virtualization systems

A method for spreading a plurality of data symbols onto subcarriers of a carrier signal for a transmission in a transmission system provides a data vector, including the plurality of data symbols. The provided data vector is transformed, and based on the transformed data vector and a spreading matrix subsequent to the transform, a spread data vector is being created, having a length which corresponds to the number of the subcarriers.

Method for spreading a plurality of data symbols onto subcarriers of a carrier signal

A method for spreading a plurality of data symbols onto subcarriers of a carrier signal for a transmission in a transmission system provides a data vector, including the plurality of data symbols; and generates a spread data vector based on the provided data vector and a spreading matrix, with the spread data vector including a length, which corresponds to the number of subcarriers and with the spreading matrix being based on a spreading allocation matrix, a base spreading matrix, and a randomization matrix.

A method for determining a beamforming vector or a beamforming channel matrix in a communication system including a transmitting station and a receiving station, and a communication system. The transmitting and receiving stations include respective antenna groups and respective codebooks include a plurality of predefined beamforming vectors for the antenna group.

Growing community of inventors

Berlin, Germany

Michael Peter