Abstract: A method of repairing a wind turbine rotor blade, in particular an existing wind turbine rotor blade, that has erosion damage or transport damage. A first region is ablated into a surface or a surface coating of the rotor blade. An adhesive is applied to the ablated region, an erosion protection film is placed on the adhesive and the adhesive is cured.

Abstract: An electronic device may receive, from a radio node, a measurement configuration associated with a wireless communication system. In response, the electronic device may perform measurements using narrow beam patterns based at least in part on a network configuration, where the narrow beam patterns are narrower than a wide beam pattern of the electronic device. Furthermore, performing the measurements using the narrow beams pattern may include performing a beam-pattern search up to the network configuration. Then, the electronic device may perform an SCell activation procedure of an SCell with the radio node. Note that the SCell activation procedure may include reporting, to the radio node, CSI of a narrow beam pattern of the SCell that is to be activated, where the narrow beam pattern is narrower than the wide beam pattern of the electronic device, and the narrow beam pattern is based at least in part on the measurements.

Abstract: Some aspects relate to apparatuses and methods for selecting a receiving beam based on hybrid channel based beamforming and codebook based beamforming. A user equipment (UE) can determine, based on a first measurement related to signal to noise ratio (SNR) and predetermined threshold values, whether the UE is in a low SNR state. If the UE is in a low SRN state, the UE can derive an estimated channel covariance matrix RCH for channels at a set of antenna elements of the UE based on channel based bearmforming (CHBF). Afterwards, a set of test bears {0, . . . Ntest?1} is selected based on the channel covariance matrix RCH, and a set of codebook measurement beams is further selected based on the set of test beams. A receiving beam is selected based on a set of measurements performed on the set of codebook measurement beams at the measurement opportunity for codebook based beamforming (CBBF).

Abstract: Some aspects relate to apparatuses and methods for selecting a receiving beam based on hybrid channel based beamforming and codebook based beamforming. A user equipment (UE) can determine, based on a first measurement related to signal to noise ratio (SNR) and predetermined threshold values, whether the UE is in a low SNR state. If the UE is in a low SRN state, the UE can derive an estimated channel covariance matrix RCH for channels at a set of antenna elements of the UE based on channel based beamforming (CHBF). Afterwards, a set of test beams {0, . . . Ntest?1} is selected based on the channel covariance matrix RCH, and a set of codebook measurement beams is further selected based on the set of test beams. A receiving beam is selected based on a set of measurements performed on the set of codebook measurement beams at the measurement opportunity for codebook based beamforming (CBBF).

Abstract: Some aspects relate to apparatuses and methods for selecting a receiving beam based on hybrid channel based beamforming and codebook based beamforming. A user equipment (UE) can determine, based on a first measurement related to signal to noise ratio (SNR) and predetermined threshold values, whether the UE is in a low SNR state. If the UE is in a low SRN state, the UE can derive an estimated channel covariance matrix RCH for channels at a set of antenna elements of the UE based on channel based beamforming (CHBF). Afterwards, a set of test beams {0, . . . Ntest?1} is selected based on the channel covariance matrix RCH, and a set of codebook measurement beams is further selected based on the set of test beams. A receiving beam is selected based on a set of measurements performed on the set of codebook measurement beams at the measurement opportunity for codebook based beamforming (CBBF).

Abstract: Apparatuses, systems, and methods for beam failure recovery based on a unified TCI framework. A UE may receive, from a base station, a configuration for a BFR procedure for a CCG. The CCG may include at least two CCs and the UE may periodically receive, from the base station, at least a first BFD RS and a first CBD RS in a first CC included in the CCG. The UE may detect, based on the first BFD RS, a beam failure in at least the first CC and send, to the base station, a BFRQ. The BFRQ may include a candidate beam selected based on at least the first CBD RS and may be sent via a PRACH or MAC CE. The UE may receive, from the base station, a BFR response and apply the candidate beam to the first CC and at least one additional CC of the CCG.

Abstract: This disclosure relates to an antenna array circuitry for analog beamforming, the antenna array circuitry comprising: a plurality of antenna elements, wherein each antenna element is configured to receive a respective analog signal (r(1,t), r(2,t), r(N,t)), wherein the plurality of antenna elements is adjustable based on a code-word, wherein the code-word comprises respective phase configurations (?p(1), ?p(2), ?p(N)) of the plurality of antenna elements, wherein the code-word is based on a superposition of a predetermined set of basic code-words, wherein each basic code-word associates with a corresponding sub-beam, wherein a main radiation lobe of the corresponding sub-beam points in a predefined spatial direction.

Abstract: A circuit arrangement including one or more processors configured to: detect a presence of one or more human object proximities based on sensor data; identify one or more coverage sectors of one or more antenna arrays, operably coupled to the one or more processors, in response to the detected presence of the one or more human object proximities; determine whether radio waves within the one or more identified coverage sectors satisfy a transmit power criteria; select one or more candidate coverage sectors of the one or more antenna arrays based the one or more identified coverage sectors; and determine at least one radio link quality for the radio waves of the one or more candidate coverage sectors.

Abstract: An electronic device may receive, from a radio node, a measurement configuration associated with a wireless communication system. In response, the electronic device may perform measurements using narrow beam patterns based at least in part on a network configuration, where the narrow beam patterns are narrower than a wide beam pattern of the electronic device. Furthermore, performing the measurements using the narrow beams pattern may include performing a beam-pattern search up to the network configuration. Then, the electronic device may perform an SCell activation procedure of an SCell with the radio node. Note that the SCell activation procedure may include reporting, to the radio node, CSI of a narrow beam pattern of the SCell that is to be activated, where the narrow beam pattern is narrower than the wide beam pattern of the electronic device, and the narrow beam pattern is based at least in part on the measurements.

Abstract: This disclosure relates to an antenna array circuitry for analog beamforming, the antenna array circuitry comprising: a plurality of antenna elements, wherein each antenna element is configured to receive a respective analog signal (r(1,t), r(2,t), r(N,t)), wherein the plurality of antenna elements is adjustable based on a code-word, wherein the code-word comprises respective phase configurations (?p(1), ?p(2), ?p(N)) of the plurality of antenna elements, wherein the code-word is based on a superposition of a predetermined set of basic code-words, wherein each basic code-word associates with a corresponding sub-beam, wherein a main radiation lobe of the corresponding sub-beam points in a predefined spatial direction.

Abstract: A circuit arrangement including one or more processors configured to: detect a presence of one or more human object proximities based on sensor data; identify one or more coverage sectors of one or more antenna arrays, operably coupled to the one or more processors, in response to the detected presence of the one or more human object proximities; determine whether radio waves within the one or more identified coverage sectors satisfy a transmit power criteria; select one or more candidate coverage sectors of the one or more antenna arrays based the one or more identified coverage sectors; and determine at least one radio link quality for the radio waves of the one or more candidate coverage sectors.

Abstract: A wireless device includes a digital receiver configured to receive data via an antenna array, and to determine a load metric based on a load of subcarriers around reference subcarrier signals of a reference signal, and a controller configured to compare the load metric to a load threshold to determine whether the load of the subcarriers is less than a predefined level, and if the load of the subcarriers is less than the predefined level, identify at least one time point where the reference signal repeats itself during a symbol period, and control the antenna array to switch among the plurality of antenna beamforming patterns based on the at least one time point.

Abstract: A wireless device includes a digital receiver configured to receive data via an antenna array, and to determine a load metric based on a load of subcarriers around reference subcarrier signals of a reference signal, and a controller configured to compare the load metric to a load threshold to determine whether the load of the subcarriers is less than a predefined level, and if the load of the subcarriers is less than the predefined level, identify at least one time point where the reference signal repeats itself during a symbol period, and control the antenna array to switch among the plurality of antenna beamforming patterns based on the at least one time point.

Abstract: A communication device includes an evaluator configured to evaluate one or more criteria, wherein a first criterion of the one or more criteria includes detecting an object, a determiner configured to determine one or more beam pairs from a plurality of potential beam pairs to use in communications with a second device based on the evaluation of the one or more criteria and transmit an indication of one or more partner-side beams of a selected beam pair of the one or more beam pairs to the second device, and a beam controller configured to adjust an antenna to communicate with the second device via a device-side beam of the selected beam pair.

Abstract: A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

Abstract: A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

Abstract: A vehicle illuminating device for the integrated attachment in each edge region of a motor vehicle, has a housing with at least one chamber, a light source positioned in a bracket, a reflector, an intermediate light disc with a prism arranged therein in at least partial regions, wherein the intermediate light disc has at least one signal function region dyed in a signal color, and electric connection contacts and a cover housing disc are spaced from the light disc. The reflector has in a first chamber a lateral section provided in a predominantly horizontal, lateral direction facing away from the vehicle. The housing has a lateral light region extending into the lateral region of the vehicle body, an additional lateral intermediate light disc arranged in the region, wherein the cover housing disc covers also the lateral light region with the lateral intermediate light disc from the outside at a distance.

Abstract: Apparatus and methods are used to control a polarization state of a radiation beam. A polarization control unit is configured to modulate a polarization state of at least a part of a radiation beam. A determination arrangement is configured to subsequently determine the polarization state of the at least a part of the radiation beam. A feedback unit is configured to provide signals to the polarization control arrangement based on at least the determined polarization state in order to correct for deviation in the polarization state of the part of the radiation beam from a desired polarization state. For example, the correction may ensure that the polarization state of the part of the radiation beam is at, or returns to, the desired polarization state.

Abstract: A vehicle illuminating device for the integrated attachment in each edge region of a motor vehicle, has a housing with at least one chamber, a light source positioned in a bracket, a reflector, an intermediate light disc with a prism arranged therein in at least partial regions, wherein the intermediate light disc has at least one signal function region dyed in a signal color, and electric connection contacts and a cover housing disc are spaced from the light disc. The reflector has in a first chamber a lateral section provided in a predominantly horizontal, lateral direction facing away from the vehicle. The housing has a lateral light region extending into the lateral region of the vehicle body, an additional lateral intermediate light disc arranged in the region, wherein the cover housing disc covers also the lateral light region with the lateral intermediate light disc from the outside at a distance.

Abstract: Apparatus and methods are used to control a polarization state of a radiation beam. A polarization control unit is configured to modulate a polarization state of at least a part of a radiation beam. A determination arrangement is configured to subsequently determine the polarization state of the at least a part of the radiation beam. A feedback unit is configured to provide signals to the polarization control arrangement based on at least the determined polarization state in order to correct for deviation in the polarization state of the part of the radiation beam from a desired polarization state. For example, the correction may ensure that the polarization state of the part of the radiation beam is at, or returns to, the desired polarization state.