Abstract: A base transceiver station for a mobile communications network for communicating with a plurality of subscriber devices within a coverage area comprises an active antenna array with a tilt adaption arrangement to adjust a vertical tilt angle of an antenna beam in dependence of beam tilting control data, and thereby dynamically change the coverage area served by the base transceiver station. The base transceiver station further comprises a beam control device for evaluating the distance of the subscriber devices in the coverage area to the active antenna array and calculating from the distances the beam tilting control data. As the distance of a subscriber device to the antenna is a parameter that may be extracted directly from data that is available anyhow for at least some subscriber devices, this data can be acquired at no extra expense.

Abstract: A flexible shaft for torque transfer has a plurality of metal wires that are helically wound in a plurality of layers with an opposite winding direction that alternates from layer to layer. Each of the metal wires is surrounded by an electrically insulating insulation layer. The insulating layer prevents a metal-on-metal contact between adjacent metal wires and thereby prevents unwanted intermodulation products.

Abstract: An improved filter arrangement includes an HF inner conductor, an outer conductor arrangement inside which the HF inner conductor is arranged, and at least one stub line which branches off from the HF inner conductor at a connection point. The HF inner conductor and the at least one additionally provided stub line are arranged in a common outer conductor arrangement.

Abstract: An improved nondirectional radiofrequency power divider is characterized by the following features:—having an outer conductor (1) and/or outer conductor housing (1?), with a first inner conductor (11), wherein the first inner conductor (11) runs in the outer conductor (1) or in the outer conductor housing (1?),—with a second inner conductor (13), wherein the second inner conductor (13) runs in the space (15) which is formed between the first inner conductor (11) and the outer conductor (1) or the outer conductor housing (1?),—the second inner conductor (13) is electrically connected to a branch line running away therefrom or is provided therewith, the second inner conductor (13) is relatively adjustable and/or positionable in terms of the distance of said second inner conductor from the first inner conductor (11) and/or in terms of the distance of said inner conductor from the outer conductor (1) or from the outer conductor housing (1?) so as to effect a variable power distribution.

Abstract: A mobile communications network is disclosed which comprises a plurality of radio heads, a cloud processing architecture, and a plurality of radio head links. The plurality of radio heads are for transceiving radio signals and for converting the radio signals between baseband representations of the radio signals and radio frequency representation of the radio signals. The cloud processing architecture is for processing the baseband representations of the radio signals. The cloud processing architecture is ad hoc shareable on demand between different ones of the plurality of radio heads. The plurality of radio head links is provided between the plurality of radio heads and the cloud processing architecture. A corresponding method for processing radio signals for a mobile communications network and corresponding computer program products are also disclosed.

Abstract: The present disclosure relates to an active antenna array for a mobile communications network. The active antenna comprises a base band unit coupled to a base station, a plurality of transceiver units and at least one link. The plurality of transceiver units is terminated by at least one antenna element. The at least one link couples individual ones of the plurality of transceiver units to the base band unit 10. The at least one link is a digital link and is adapted to relay an individual transmit signal concurrently and in synchronisation with a transmit clock signal. The present disclosure further teaches a method for relaying radio signals in a mobile communications network. The present disclosure further relates to a computer program enabling a computer to manufacture the active antenna array of the present disclosure and to execute the method of relaying radio signal in a mobile communications system.

Abstract: An active antenna system for a mobile communications network and a method for relaying radio signal in the mobile communications network is disclosed. The active antenna system comprises a plurality of antenna elements for relaying radio signals at a first frequency band. The antenna elements are connected to a plurality of signal paths. A plurality of signal inputs for inputting radio signals at a second frequency band is connected to the plurality of signal paths. A plurality of mixers in the signal paths converts the frequency of the radio signals between the first frequency band and the second frequency band. A plurality of local oscillators is connected to the mixers and a single reference oscillator can be connected through a plurality of first dispersion elements to different ones of the plurality of local oscillators through a plurality of first oscillator signal paths and to a digital signal processor.

Abstract: An improved dual-polarised, omnidirectional antenna is characterised inter alia by the following features: each sector antenna (5) comprises at least one antenna gap (6) comprising an associated reflector (11), which is arranged at least in part in a reflector plane (13?), at least one dual-polarised radiator (7, 9) being arranged in the antenna gap (6), in front of the reflector (11) the sector antennae (5) are additionally arranged mutually offset along the central axis (1) thereof, the sector antennae (5) are arranged in such a way that, in an axial view along the central axis (1), the reflector walls (13), arranged in a respective reflector plane (13?), of the reflectors (11), overlap or intersect.

Abstract: A Doherty amplifier (100) is described which comprises an input terminal (102) for receiving an input signal (101) and an output terminal (103) for providing an amplified signal (104) of the input signal (101). The Doherty amplifier is supplied by a first supply voltage and a second supply voltage which have opposite polarities in respect to a reference level.

Abstract: An antenna array for a mobile communications system comprises a plurality of receive paths and a calibration signal processor. The receive paths are connected between an antenna elements and an analogue-to-digital converters. The calibration signal processor comprises a cross-analyzer for cross-analyzing the digitized receive signals of the plurality of receive paths with each other, an averager for forming a temporal average of an output of the cross-analyzer, the temporal average indicating a receive signal relationship between the digitized receive signals of the plurality of receive paths, wherein the calibration signal processor is adapted to use the temporal average of the receive signal relationship to calibrate of at least one of the plurality of receive paths. A corresponding method and corresponding computer program products usable during manufacture and operation are also disclosed.

Abstract: A radio system and a method for relaying packetized radio signals is disclosed. The radio system and the method provide a calibration of transmit signals. Furthermore the radio system and the method provide a measurement of a transmit power level. The radio system comprises at least one transmit path, a calibration unit, a base band calibration signal generator synchronized to a synchronization unit, at the least one link and a power sensor. A portion of a selected one of coupled transmit signals is forwarded to a power sensor for measuring a power level, wherein the calibration unit is adapted to update a transmit power level of the at least one transmit path in response to the transmit power level of the selected one of the coupled transmit signals.

Abstract: The present disclosure teaches an active antenna array for a mobile communications network. The active antenna array comprises a plurality of antenna elements, at least one first splitter, at least one amplifier and at least one first coupler. The first splitter forwards at least one of at least one individual first protocol receive signal and at least one individual second protocol receive signal in a receive direction from an individual one of the plurality of antenna elements. The at least one amplifier amplifies at least one of the individual first protocol receive signal and the individual second protocol receive signal. The at least one first coupler is located in the receive direction downstream of the at least one amplifier and is adapted to forward the at least one individual second protocol receive signal to a second protocol receiver.

Abstract: A filter arrangement for filtering a radio transmit signal and radio receive signal, comprising a first duplex filter and a second duplex filter, a signal divider for splitting a transmit input signal into a first transmitter signal portion and a second transmitter signal portion, the first transmitter signal portion being passed to the a transmit port of the first duplex-filter, and a second signal portion being passed to the second transmitter port of the second duplex filter. The filter arrangement further comprising a signal combiner/divider for combining a first filtered transmit portion signal and a second filtered transmit portion signal into a single filtered transmit signal. The filter arrangement further comprising a signal combiner for combining a first filtered receive signal portion and a second filtered receive signal portion into a single filtered receive signal, which is provided at a third output of the signal combiner.

Abstract: A base band to frequency up-converter is described wherein the base band to frequency up-converter comprises a first input for receiving a first base band signal of first base band samples and a second input for receiving a second base band signal of second base band samples and an output for providing up-converted radio signal samples. The base-band to radio frequency up-converter further comprises a phase converter for converting the first base band signal of first base band samples and the second base band signal of second base band samples into a first intermediate signal of first intermediate samples, a second intermediate signal of second intermediate samples, and a third intermediate signal of third intermediate samples. The intermediate samples are then up-converted into radio signal samples.

Abstract: Antenna system connectable to a base station, the antenna system comprising a digital radio unit connectable to at least one antenna element, wherein the digital radio unit comprises: at least one micro radio for receiving/sending digital radio signals having a digital down-converter/a digital up-converter and a digital signal converter. The at least one micro radio converts the digital radio signals to analogue RF (radio frequency) signals and vice versa. The at least one micro radio has at least one hub for processing digital radio signals and control signals and for routing said digital radio signals and control signals via at least one serial link and at least one interface. The at least one serial link is provided between the at least one hub and the at least one micro radio.

Abstract: An antenna transmission control device has a base-station-side and an antenna-side multiplexer circuit. There is an alternating protocol transfer between these two multiplexer circuits to control components close to the antenna. The current-alarmed or protocol-alarmed signals present at the antenna-side terminals of the multiplexer provided on the antenna side can be measured or detected by the multiplexer circuits and supplied to the transmission link together with a terminal-dependent or load-dependent protocol.

Abstract: A shared digital processing resource is connectable to a plurality of remotely located transceivers and comprises a packet processor, a transceiver selector, a packet formation unit, and a packet-switched network interface. The packet processor is adapted to process user data to form antenna-carrier data, or vice versa. The transceiver selector is adapted to select a preferred remotely located transceiver from the plurality of remotely located transceivers, the preferred remotely located transceiver having a packet-switched network address. The packet formation unit is adapted to insert the antenna-carrier data destined for the preferred remotely located transceiver in packets having the packet-switched network address. The packet-switched network interface is adapted to transmit the packet-switched packets over a packet-switched network to which the plurality of remotely located transceivers is connected.

Abstract: An improved rooftop antenna is characterized, inter alia, by the following features: the base (7) has a protruding base foot part (17) on the base lower side (7e) of said base; the base foot part (17) is formed integrally with the remaining part of the base (7) or connected thereto and is electrically conductive or coated, together with the base (7), with an electrically conductive layer; the base foot part (17) has a channel (117), which passes through the foot part (17) transversely and preferably perpendicular to the base (7) in a plug-in and joining direction (Z) for accommodating the at least one coaxial line (21); and the coaxial line (21) is inserted into the at least one channel (117) of the base foot part (17) in such a way that at least one section of the outer circumference of the outer conductor (27) of the coaxial line (21) is pressed mechanically with the electrically conductive inner wall of the channel (117) of the base foot part (17) and DC contact is thereby made therewith.

Abstract: An improved multi-beam shape supplementary device, more particularly for mobile radio antenna systems, is distinguished, inter alia, by the following features: the multi-beam shape supplementary device comprises a site sharing adapter (A) in the form of a primary adapter (PA), the site sharing adapter (A) has at least two primary connections (A1, A2, A3) for connecting at least two primary control units, the plug and/or connection configuration or connection assignment at the primary connections (A1, A2, A3) are connection-compatible with the connections on the coupling connection side (KoAn) of the site sharing adapter (A), the pin or socket connections (14; 3, 5) provided for the bidirectional signal transmission in the site sharing adapter (A) are connected to a connection pin or a connection socket (3)—provided for the bidirectional signal transmission—of the coupling connection (KoAn) with the formation of a bidirectional signal transmission path, and the bidirectional transmission path is designed such

Abstract: A method for crest factor reduction of a multi-carrier signal is disclosed. The multi-carrier signal comprises a plurality of single-carrier signals, each single-carrier signal having signal-specific spectral properties. The method comprises identifying a peak in the multi-carrier signal and a time of occurrence of the peak and generating a plurality of cancellation pulses depending on the time of occurrence of the peak. A particular cancellation pulse of the plurality of cancellation pulses is associated with a particular single-carrier signal and cancellation pulse-specific spectral properties of the particular cancellation pulse substantially match the signal-specific spectral properties of the associated particular single-carrier signal. The method further comprises combining the plurality of cancellation pulses to form a combined cancellation pulse and applying the combined cancellation pulse to the multi-carrier signal to reduce the peak.