Abstract: Technology for downlink signaling between an enhanced Node B (eNB) and user equipment (UE) with a selected cyclic prefix (CP) for the UE is disclosed. In an example, a user equipment (UE) can include circuitry configured to: estimate a delay spread for a corresponding channel between the eNB and the UE; communicate the estimated delay spread from the UE to the eNB to enable the eNB to determine a selected cyclic prefix (CP) length for downlink signaling; receive the selected CP length from the eNB for a transmission time interval (TTI); and process received downlink data for the TTI using the selected CP length.

Abstract: Embodiments of the invention relate generally to radio communication devices and to a method for controlling frequency selection. In an embodiment of the invention, a radio communication device is provided. The radio communication device may include a first medium access control unit, a second medium access control unit, a common scheduling unit configured to control the first medium access control unit and the second medium access control unit, and a communication interface configured for frequency selection communication between the first medium access control unit and the second medium access control unit, wherein at least one frequency channel to be used is exchanged between the first medium access control unit and the second medium access control unit.

Abstract: Embodiments of the invention relate generally to communication devices and to a method for transmitting data. In an embodiment of the invention, a communication device is provided. The communication device may include a first access technology circuit providing signal transmission in accordance with a first access technology to transmit user data encoded in accordance with the first access technology, and a second access technology circuit providing signal transmission in accordance with a second access technology, wherein the second access technology is different from the first access technology, to transmit control data encoded in accordance with the first access technology and to transmit control data encoded in accordance with the second access technology.

Abstract: Embodiments of the invention relate generally to radio communication devices and to a method for controlling frequency selection. In an embodiment of the invention, a radio communication device is provided. The radio communication device may include a first medium access control unit, a second medium access control unit, a common scheduling unit configured to control the first medium access control unit and the second medium access control unit, and a communication interface configured for frequency selection communication between the first medium access control unit and the second medium access control unit, wherein at least one frequency channel to be used is exchanged between the first medium access control unit and the second medium access control unit.

Abstract: A radio communication device and a method for controlling frequency selection. In an embodiment of the invention, a radio communication device may include a first radio modem circuit, a first medium access control circuit assigned to the first radio modem circuit, a second radio modem circuit, a second medium access control circuit assigned to the second radio modem circuit, and a control interface circuit configured to control the first medium access control circuit and the second medium access control circuit.

Abstract: A radio communication device and a method for controlling frequency selection. In an embodiment of the invention, a radio communication device may include a first radio modem circuit, a first medium access control circuit assigned to the first radio modem circuit, a second radio modem circuit, a second medium access control circuit assigned to the second radio modem circuit, and a control interface circuit configured to control the first medium access control circuit and the second medium access control circuit.

Abstract: Embodiments of the invention relate generally to communication devices and to a method for transmitting data. In an embodiment of the invention, a communication device is provided. The communication device may include a first access technology circuit providing signal transmission in accordance with a first access technology to transmit user data encoded in accordance with the first access technology, and a second access technology circuit providing signal transmission in accordance with a second access technology, wherein the second access technology is different from the first access technology, to transmit control data encoded in accordance with the first access technology and to transmit control data encoded in accordance with the second access technology.

Abstract: A method for generating at least one cryptographic key is provided in which several devices are each exposed to the same environmental conditions, the devices, taking into account the environmental conditions, each determine a value for a same physical quantity, and the devices each generate a cryptographic key by using the respective value of the physical quantity determined by the devices.

Abstract: Data sequences comprised of figure-coded units, such as text comprised of ASCII characters, are encoded into another data entity, such as a pixel based image. The encoding implements a positionally-based encoding scheme in which values of the data entity (basic matrix) upon which the data sequences are to be encoded is used. The position for values to be changed in the basic matrix are determined by a reversible function, and the encoding value that these values are changed by may be 1, another arbitrary number, or determined by a formula. The counterpart to the reversible function is known by an intended receiver of the encoded data for decoding purposes. The basic matrix may be generated utilizing a suitably complex function, such as a chaos function, with parameters known only to the sender and receiver.

Abstract: A method and an arrangement by which separating liquid streams, such as occur for example in cell sorters, are monitored automatically. An image of the separating liquid streams is recorded and the position of a separation point at which the drops separate from a column of liquid is found using image analysis methods. Various solution possibilities are indicated for the suitable preparation of the image information for easier processing.

Abstract: Modular and extendible electronic working surface made of basic elements which can be plugged together reversibly, whose top surfaces are configured as sensitive flat panel devices and which can exchange data with one another. Some or all the basic elements are equipped with memories and processors, have the basic functionality of a personal computer, and are able to communicate with external devices and data networks. The working surface can be used by a user or a plurality of users together as a universal, variable-size and mobile device for the input, output, processing and storage of data and as a data communications terminal device.