Alcatel Lucent

Nokia Technologies Oy

Nokia Solutions and Networks Oy

Wolfgang Templ

Dirk Wiegner

Rose Fasano Kopf

Senad Bulja

Florian Pivit

Walter Weigmann

Dieter Kopp

Phillip D Rasky

Roy Yang

Axel Mueller

Klaus Stocker

Andreas Pascht

Pawel Rulikowski

Simone Maier

Wolfgang Kuebart

Anna Zakrzewska

Christoph Haslach

Robin Machinal

Klaus E Stocker

Apparatus including a first transmission line for transmitting radio frequency, RF, signals and at least one RF device including at least one active semiconductor device for processing RF signals, wherein said at least one RF device is coupled to said first transmission line, and wherein said first transmission line includes an electro-chromic, EC, material a permittivity of which can be controlled by applying a first control voltage to said first transmission line.

Apparatus comprising a transmission line for radio frequency signals

In accordance with example embodiments of the invention there is at least an apparatus and a method to perform determining, by a network node, a repeater, and/or a user equipment of a communication network, a configuration message comprising an identified frequency range of at least one of a first communication link between a donor and a repeater or a second communication link between a user equipment and the repeater for a repeat transmission in the communication network; and communicating with at least one of the repeater or the user equipment an indication of the configuration message for configuration at the repeater and the user equipment of the at least one set of sub-carriers mapped with the at least one physical channel for the repeat transmission, wherein the configuration message is using at least a different frequency offset of supported radio frequency resources to map at least one set of sub-carriers of the at least one of the first communication link and the second communication link with at least one physical channel in supported radio frequency resources of at least one of the first communication link or the second communication link, and mapping comprises performing spectral modification of resources to cause at least one of: sub-carrier shifting, wherein a sub-carrier is selected for the repeater to frequency shift to another part of the spectrum, based on instructions by the network node, sub-carrier inversion, wherein sub-carriers' indices are inversed, based on an on/off decision by the network node, and wherein the spectral modification is causing the at least one set of sub-carriers with the at least one physical channel to have different spectral properties as compared to a target set of sub-carriers associated with at least one of the user equipment or the repeater.

Method and apparatus for a sub-band transpose repeater

An apparatus includes a dielectric tile array including a plurality of dielectric tiles; and a plurality of electroactive (EA) material blocks configured to expand or contract in response to being actuated by the application of an actuation voltage.

Electroactive material-controlled smart surface

A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

Switchable element

An electrically controllable RF circuit that includes an EC cell and an EAP-based actuator configured to produce relative movement of an electrode of the electrochromic cell and an electrically conducting patch or another electrode electromagnetically coupled thereto. In one embodiment, the RF circuit operates as a tunable patch antenna whose frequency characteristics can be changed by changing the bias voltages applied to the EC cell and EAP-based actuator. Advantageously, the capability to tune the antenna using two different tuning mechanisms (i.e., a dielectric-permittivity based tuning mechanism implemented using the EC cell and a geometry-based tuning mechanism implemented using the EAP-based actuator) provides more degrees of control over the pertinent antenna characteristics compared to what is available in some other antenna designs. In another embodiment, the RF circuit can operate as a tunable RF filter whose frequency characteristics can similarly be changed using these two different tuning mechanisms.

Tunable radio-frequency device having electrochromic and electro-active materials

A radio-frequency switching apparatus that can be used to turn a signal path on or off or to attenuate a radio-frequency signal. The switching apparatus comprises at least one radio-frequency input, at least one radio-frequency output, at least one transmission line providing a signal path between the at least one radio-frequency input and the at least one radio-frequency output, and at least one transition metal oxide portion. The radio-frequency switching apparatus also comprises direct current blocking means electrically coupled between the at least one transition metal portion and the at least one radio-frequency input. The radio-frequency switching apparatus also comprises biasing means for providing a bias across the at least one transition metal oxide portion such that power transferred between the radio-frequency input and the radio-frequency output is controlled by controlling the bias level across the at least one transition metal oxide portion.

Radio-frequency switching apparatus

An electrically controllable RF-circuit element that includes at least one layer of an electrochromic material sandwiched between two corresponding layers of a solid-electrolyte material and placed adjacent and along a length of RF transmission line. In one example embodiment, the electrically controllable RF-circuit element operates as a tunable band-stop (e.g., notch) filter whose stop band can be spectrally moved by changing one or more dc-bias voltages applied across the corresponding layer stack(s). In another example embodiment, the electrically controllable RF-circuit element operates as a tunable phase shifter whose phase-shifting characteristics can be changed by changing one or more dc-bias voltages applied across the corresponding layer stack(s).

Electrically tunable radio-frequency components and circuits

A device () comprising an antenna array () having a plurality of transmit and receive antennas () for wireless radio communication and a display () for displaying a stereoscopic image (), wherein the stereoscopic image () is visible to an observer (A,B) at a position (A,B), wherein the antenna array () and the display () are arranged so that from the position (A,B) the observer's view of at least a part of the antenna array () is obstructed by the display (). A method for operating the device.

Device for communication, method of operating such device

An electrochromic (EC) cell having improved dielectric tunability and lower dielectric losses is disclosed. A multi-layer structure includes at least one electrochromic layer of a transition metal oxide between electrode layers. Two electrolyte layers are located on either side of the at least one electrochromic layer and next to the electrode layers. An ion storage film layer of a transition metal oxide may be provided between the electrochromic layer and one of the electrolyte layers. This structure prevents the shortening of the channel height when a voltage is applied therefore reducing dielectric losses.

Electrochromic cell

A technique is provided for determining information about efficiency of an inductive charging system having a primary coil embedded in a road infrastructure and a secondary coil located in a vehicle moving on the road infrastructure. A first inductive coupling efficiency component attributed to the road infrastructure is determined from a total efficiency depending on a second inductive coupling efficiency component attributed to a position of the secondary coil relative to the primary coil and of a third inductive coupling efficiency component attributed to an electric circuit comprising the secondary coil.

Method, a device, a system, a computer program and a computer program product for determining information about efficiency of an inductive charging system, having a primary coil embedded in a road infrastructure

An exemplary method and apparatus are provided for operating a power grid that has decentralized control elements. The decentralized control elements are adapted to interact with each other, in particular by communication. At least a part of the power grid, a control element or the interaction between control elements, in particular the communication between control elements, is monitored. When a problem in at least a part of the power grid, the control element or the interaction between control elements, in particular a communication breakdown, is detected, a control element affected by the problem is triggered to work autonomously.

Method, a system, a server, a control element, a computer program and a computer program product for operating a power grid having decentralized control elements

A technique for discharging an energy storage of a vehicle having a predetermined discharge limit threshold comprises performing a lookup in a database to determine whether a predetermined condition is met. The predetermined condition comprises a specific vehicle identification number being listed in the database. Next, initiating the discharging of the energy storage below a predetermined discharge limit threshold depending on a result of the lookup in the database.

Technique for discharging an energy storage of a vehicle

The invention concerns a method for transmission of a data signal from a transmitting device (BS) to a receiving device (RAH) using a LINC amplifier (LINC, LINC) for signal amplification, wherein the data signal is represented by two phase modulated signal components of constant amplitude in a first part of the LINC amplifier (LINC, LINC) located in the transmitting device (BS), at least one of the two phase modulated signal components of constant amplitude is transmitted over at least one optical connection (OFFF) from the transmitting device (BS) to the receiving device (RAH), and the at least one of the two phase modulated signal components of constant amplitude is converted from an optical signal into an electrical signal in at least one opto-electrical converter (OEE) located in said receiving device (RAH), a LINC amplifier, a transmitting device, a receiving device, and a communication network therefor.

Method for data transmission using a LINC amplifier, a LINC amplifier, a transmitting device, a receiving device, and a communication network therefor

A system and method for device identification includes a receiver adapted to detect an electromagnetic radiation interference signal emitted by a device and a microprocessor operatively connected to the receiver. The microprocessor may identify at least one device characteristic parameter of the electromagnetic radiation signal. The system includes memory for storing at least one constant or predicted future characteristic value associated with the device and the microprocessor may compare the detected characteristic parameter to the at least one constant or predicted future characteristic value to identify and recognize the device that emitted the electromagnetic radiation signal.

Electromagnetic interference device identification system and method

The invention describes a radio frequency (=RF) power amplifier (), comprising&#x2014;a coupling array () comprising a plurality of nano-sized coupling elements (), wherein the coupling elements () are grouped into a number N of sub-arrays (SA-. . . SA), with each sub-array (SA-. . . SA) exhibiting&#x2022;a specific resonance frequency (f. . . f) and&#x2022;a specific attenuation of a mechanical self-oscillation of its coupling elements (), wherein for the coupling elements () of each sub array (SA-. . . SA), there is a stimulating means for stimulating a mechanical self-oscillation, &#x2014;and a signal processing unit () for controlling the stimulating means with stimulating pulses having a pulse form and timing calculated by the signal processing unit () based on an evaluation of the spectral components of an RF signal to be amplified, namely the amplitudes (C. . . C) and phases (&#x3a6;. . . &#x3a6;) at the frequencies (f. . . f) corresponding to said specific resonance frequencies. The inventive RF power amplifier provides a high efficiency and a high linearity, in particular at high RF frequencies.

Growing community of inventors

Sersheim, Germany

Wolfgang Templ