114 results about "Radio communications" patented technology

A first radio terminal of a radio communications network. In one example, the first radio terminal includes an electronic processor, a communication module, and an antenna. The electronic processor is configured, together with the communication module, and the antenna, to cause the radio terminal to transmit, in a first transmission to a second radio terminal, data via a first subset of a set of SPS radio resources, reserve a second subset of the set of SPS radio resources for a subsequent data transmission, and in response to detecting a triggering event, skip the subsequent data transmission.

The invention discloses a semi-supervised learning method based on a self-adaptive threshold value, belongs to the field of radio communication, and aims to extract general semantic features of signals through comparative learning so as to improve generalization of downstream modulation identification tasks. A self-adaptive threshold mechanism is introduced to generate a high-quality pseudo tag, and confirmation deviation is reduced through additional category information, so that the robustness of the model is improved; besides, a hierarchical encoder capable of learning Fourier filtering is designed to capture multi-scale semantic features of large-scale long-sequence signals, improve the calculation efficiency of a model and research and verify an algorithm based on a plurality of large-scale data sets, so that the accuracy of automatic modulation recognition is remarkably improved, and particularly, under the condition of less label data, the accuracy of automatic modulation recognition is greatly improved. Compared with a mainstream method, the method has higher generalization ability and robustness, and can effectively cope with signal diversity and noise interference in a real communication environment.

The invention provides a method for systematically monitoring aircraft pilot and air traffic control (ATC) radio communications to detect predefined aviation-specific keywords indicative of operational conditions affecting flight safety or efficiency, such as turbulence, icing, or visibility constraints. Detected keywords and semantic equivalents from voice transmissions are transformed into structured data formats. These structured data are correlated with Automatic Dependent Surveillance-Broadcast (ADS-B) data, including precise aircraft position, altitude, heading, and speed. Leveraging this integrated data, the system generates automated, quantitative visualizations, such as condition-specific heatmaps or other graphical representations, illustrating spatial distributions of reported in-flight phenomena like turbulence, icing, or hazardous conditions. These visualizations enable air traffic controllers, pilots, and aviation stakeholders to rapidly assess and disseminate real-time observations and historical patterns of flight hazards, thereby significantly enhancing situational awareness, operational safety, and decision-making effectiveness without manual input or subjective interpretation, improving overall aviation operational efficiency and safety.

A wireless-access point includes a first radio to transmit RF signals in a first channel; a second radio to transmit, simultaneously to transmissions of the RF signals by the first radio, RF signals in a second, non-overlapping channel; and a plurality of planar antennas coupled with corresponding first and second radios to receive the RF signals. First and second planar antennas are coupled with the first radio to receive therefrom, in the first channel, a first RF signal and a second RF signal, respectively. The first planar antenna is arranged with its normal along a first direction. The second planar antenna is arranged with its normal along a second, different direction. A third planar antenna is coupled with the second radio to receive therefrom a third RF signal in the second channel, the third planar antenna being arranged with its normal along a third direction.

A circuit arrangement includes a preprocessing circuit configured to obtain context information related to a user location, a learning circuit configured to determine a predicted user movement based on context information related to a user location to obtain a predicted route and to determine predicted radio conditions along the predicted route, and a decision circuit configured to, based on the predicted radio conditions, identify one or more first areas expected to have a first type of radio conditions and one or more second areas expected to have a second type of radio conditions different from the first type of radio conditions and to control radio activity while traveling on the predicted route according to the one or more first areas and the one or more second areas.

The invention relates to an active antenna comprising a single-turn loop, for example an antenna for radio communications and / or electromagnetic field measurements. An active antenna according to the invention comprises: a first element (11), the first element being an electrical conductor; a second element (12), the second element being an electrical conductor; a third element (3), the third element being an electrical conductor, a first end of the third element being directly coupled to a first end of the first element and to a first end of the second element; and a differential amplifier having a positive input terminal coupled to a second end of the first element, a negative input terminal coupled to a second end of the second element, and a reference node coupled to a second end of the third element, an output port of the active antenna being coupled to an output of the differential amplifier.Figure for abstract: Figure 4.

Aspects of the subject disclosure may include, for example, attaching, by a radio circuit, to a terrestrial radio network for radio communications with the terrestrial radio network, monitoring an altitude of the radio circuit relative to a surface of earth, and attaching, by the radio circuit, to a non-terrestrial radio network for subsequent radio communication with the non-terrestrial radio network to limit radio interference on the terrestrial radio network, wherein the attaching to the non-terrestrial radio network is responsive to the altitude of the radio circuit exceeding a first elevation threshold value. Other embodiments are disclosed.

The embodiments of the present application relate to the technical field of radio communications. Provided are a radio-over-fiber communication apparatus, system and method. The radio-over-fiber communication apparatus comprises: an aggregation module, which is coupled to a remote radio head and is used for adjusting the baud rate of a feedback signal to obtain a compatible signal, combining the compatible signal and a received signal, so as to obtain an aggregated signal, and transmitting the aggregated signal by means of an optical fiber link, wherein the feedback signal is used for performing nonlinear compensation on a transmitted signal, and the frequency null of the compatible signal overlaps the frequency point of the received signal; and a splitting module, which is coupled to a baseband unit and is used for acquiring the aggregated signal by means of the optical fiber link, and splitting the aggregated signal into two signals, wherein the two signals are respectively used for the baseband unit to acquire the received signal and the feedback signal. In the solution provided in the present application, existing optical fiber resources in a radio-over-fiber communication system can be used to reduce the cost and power consumption of the system.

Embodiments of the present application relate to the technical field of radio communications, and provide an antenna array, an antenna structure, and a communication device, for use in reducing the interference of a high-frequency radiation unit on a low-frequency radiation unit in an antenna array. The antenna array comprises a metal bottom plate, a first radiation unit, and a second radiation unit, wherein the first radiation unit and the second radiation unit are arranged on the metal bottom plate. The first radiation unit has a first frequency f1, the second radiation unit has a second frequency f2, wherein f2<f1. The first radiation unit comprises a first antenna element, a first balun structure, and a decoupling structure, and the first balun structure is electrically connected to the first antenna element and the metal bottom plate. The decoupling structure is insulated from the metal bottom plate, and the decoupling structure comprises at least one main annular branch. The main annular branch is located between the first antenna element and the metal bottom plate. At least part of the main annular branch and the metal bottom plate are arranged crosswise. A first opening is formed in the end of the main annular branch away from the metal bottom plate, and two ends of the main annular branch at the first opening are electrically connected to the first balun structure.

To solve problems in the case of an update period of a channel map being constant by changing an update period of a channel map.SOLUTION: A radio communications system 10 includes a master device 20 and a slave device 30. When performing radio communication with the slave device 30, the master device 20 determines the communication quality of respective communication channels and decides a communication channel to be used for the radio communication on the basis of communication quality determination results of the respective communication channels. A channel map indicating the decided communication channel is transmitted from the master device 20 to the slave device 30 so that the channel map is shared by the master device 20 and the slave device 30. The channel map shared by the master device 20 and the slave device 30 is periodically updated. An update period of the channel map is changed depending on a communication state between the master device 20 and the slave device 30 or an instruction from the outside.SELECTED DRAWING: Figure 6

A plurality of communications nodes are configured to form a wireless backhaul network to communicate data from a core network of the wireless communications network for transmitting to one or more communications devices or to communicate data to the core network received from the one or more communications devices. At least a first and a second of the plurality of communications nodes are donor communications nodes formed from radio network infrastructure equipment having a physical connection to the core network. According to example embodiments, a migrating communications node determines that it should migrate from a first attachment point in the wireless backhaul network in which the migrating node communicates the data to or from the core network via the first donor communications node. The term “attachment point” is used to express a link of a communications node to other nodes in the backhaul network. The radio communications links are formed to communicate data to and from the core network via donor communications nodes and may be also via one or other nodes according to an established hierarchy of the wireless backhaul network. The migrating communications node determines a second attachment point in the wireless backhaul network to which the migrating communications node should attach to the wireless backhaul network to communicate the data to or from the core network, and the migrating communications node migrates from the first attachment point to the second attachment point. The second attachment point is determined by biasing a selection of the second attachment point either to provide the migrating communications node with radio communications resources from the first donor communications nodes when attached to the wireless backhaul network at the second attachment point as an intra-donor migration, or to provide the migrating communications node with radio communications resources from the second donor communications node when attached to the wireless backhaul network at the second attachment point as an inter-donor migration.

The invention relates to a multipath interference detection and suppression method based on multi-modal deep learning, and belongs to the technical field of wireless communication and artificial intelligence crossing. According to the method, interference detection, intensity grading and path separation are realized through multi-task deep network combination, and signal reconstruction is optimized by using a conditional generative adversarial network in combination with time domain sparse constraint. The method is suitable for a radio communication scene, the communication reliability in a complex time-varying environment can be remarkably improved, the bit error rate is reduced, and the spectrum efficiency is optimized. Simulation experiments show that the method can reduce the bit error rate by one order of magnitude in scenes of ground radio communication, satellite communication and the like, and is obviously superior to a traditional scheme.

The present invention belongs to the field of radio communication, and specifically relates to a frequency synthesizer, comprising a reference signal generating circuit, a main phase-locked loop, a local oscillator signal generating circuit and a first power divider, wherein the reference signal generating circuit is respectively connected to the main phase-locked loop and the local oscillator signal generating circuit through the first power divider, and the main phase-locked loop is connected to the local oscillator signal generating circuit. The present invention has the function of reducing phase noise while generating a high-frequency frequency source.

Described herein is an apparatus, an infrared (IR) interference shield, that may be utilized with a vehicle that utilizes hydrogen fuel, such as a fuel cell electric vehicle (FCEV). For example, the infrared interference shield is attached to a hydrogen fueling receptacle on the vehicle. The infrared interference shield is specifically structured to reduce or prevent interference in infrared wireless communications between a vehicle-side infrared transmitter on the receptacle and an infrared receiver at the hydrogen fueling station. The infrared interference shield may block interference to infrared signals that may adversely affect infrared wireless communications between the hydrogen fueling station and the vehicle. Thus, the infrared interference shield improves the reliability of communications between the vehicle and the hydrogen fueling station, thereby improving the overall effectiveness and efficiency of the hydrogen refueling process.

A radio communication system, comprising a transmitter and a receiver wherein the transmitter is configured to transmit a multi-block request including control and timing information relating to a subsequent multi-block transmission, the receiver is configured to receive and decode said multi-block request, the transmitter is configured to subsequently transmit the multi-block transmission, wherein the multi-block transmission comprises a series of discrete blocks. Each block comprises a respective data payload and a synchronisation portion, and each synchronisation portion enables synchronisation between the transmitter and receiver when used in combination with the control and timing information, independently of receipt of other blocks in the multi-block transmission.

A plurality of communications nodes are configured to form a wireless backhaul network to communicate data from a core network of the wireless communications network for transmitting to one or more communications devices or to communicate data to the core network received from the one or more communications devices. At least a first and a second of the plurality of communications nodes are donor communications nodes formed from radio network infrastructure equipment having a physical connection to the core network. According to example embodiments, a migrating communications node determines that it should migrate from a first attachment point in the wireless backhaul network in which the migrating node communicates the data to or from the core network via the first donor communications node. The term “attachment point” is used to express a link of a communications node to other nodes in the backhaul network. The radio communications links are formed to communicate data to and from the core network via donor communications nodes and may be also via one or other nodes according to an established hierarchy of the wireless backhaul network. The migrating communications node determines a second attachment point in the wireless backhaul network to which the migrating communications node should attach to the wireless backhaul network to communicate the data to or from the core network, and the migrating communications node migrates from the first attachment point to the second attachment point. The second attachment point is determined by biasing a selection of the second attachment point either to provide the migrating communications node with radio communications resources from the first donor communications nodes when attached to the wireless backhaul network at the second attachment point as an intra-donor migration, or to provide the migrating communications node with radio communications resources from the second donor communications node when attached to the wireless backhaul network at the second attachment point as an inter-donor migration.

The invention relates to the technical field of radio communication, in particular to a radio communication system with a talkback function, which comprises an environment voice acquisition module, an induction electric signal core processing module and a signal amplification optimization module, and is characterized in that the environment voice acquisition module acquires environment voice and converts the environment voice into an induction electric signal; the induction electric signal core processing module defines induction electric signals with the same sampling interval as induction time sequence signals; judging a noise electric signal and a current analog electric signal in the induction time sequence signal; setting a plurality of tap numbers and corresponding tap coefficients, and sequentially adopting different tap numbers to reduce the noise of the current analog electric signal and output a filtering signal; setting a constraint condition to minimize an error signal, and analyzing an optimal tap number and a corresponding tap coefficient; the signal amplification optimization module receives the optimal number of taps in the induction electric signal core processing module, dynamically sets different voice feature amplification times according to the optimal number of taps, and amplifies the current analog electric signal.

A radio transceiver device is provided. The radio transceiver device is arranged to transmit a data packet to a second radio transceiver device, the data packet comprising a header portion and a payload portion comprising a plurality of payload blocks, wherein each payload block comprises a data portion and an error detection portion. The device listens for an acknowledgement packet from the second radio transceiver device comprising an indication of which payload blocks were successfully received. If an acknowledgement packet is received which indicates that one or more payload blocks were not successfully received, the device transmits a further data packet to the second radio transceiver device comprising the one or more payload blocks that were not successfully received. If no acknowledgement packet is received, the device transmits an acknowledgment request packet to the second radio transceiver device.

A modular VTOL drone aircraft can include a primary processor, a plurality of propellers, one or more line replacement modules (“LRMs”) and one or more line replacement units (“LRUs”). LRMs can include a fuselage, a center wing, two booms, two outer wings, two vertical tails, a horizontal tail, and / or an engine. LRUs can include an avionics module, a radio communications assembly, a sensor package assembly, an ISR assembly, and / or a deployable payload assembly. Each LRM and LRU can be self-contained and removably attached to the remainder of the VTOL drone. Each LRM can be readily interchanged with another similar LRM, which can be of a different size. LRM interfaces can include a blind mate electric connector and / or a floating connector.

System and method for establishing a virtual access point (vAP) is described. A wireless network includes a router to provide access to external networks, physical access points (pAPs) to provide radio communications access to a user device, and a controller to form a vPA by layer two link aggregating the pAPs using access point and configuration information and send a virtual service set identifier (vSSID) to the pAPs. The vAP having a layer two data plane and control plane. The vAP provides a wireless coverage area equivalent to the pAPs using the vSSID, enable a user device to connect to the data plane via a data link, connect to the control place via layer two control links, and radio frequency connect to the pAPs. The controller and the pAPs configured to manage user data traffic flow between the router and the user device via the control and the data planes.

The present disclosure relates to an electronic vial cap (1) for attachment onto the top of a vial (2), comprising: a rigid housing (11), the housing (11) comprising attachment means (12) to releasably attach the electronic vial cap (1) to the top of a vial (2); and an electronic module arranged in the housing (11) comprising: a sensor system configured to measure environmental conditions comprising a temperature sensor and / or a humidity sensor, a wireless radio communications module, and a control module, wherein the control module is configured to: transmit, to a wireless reader, a status message comprising measurement values from the sensor system.

A wireless-access point includes a first radio to transmit RF signals in a first channel; a second radio to transmit, simultaneously to transmissions of the RF signals by the first radio, RF signals in a second, non-overlapping channel; and a plurality of planar antennas coupled with corresponding first and second radios to receive the RF signals. First and second planar antennas are coupled with the first radio to receive therefrom, in the first channel, a first RF signal and a second RF signal, respectively. The first planar antenna is arranged with its normal along a first direction. The second planar antenna is arranged with its normal along a second, different direction. A third planar antenna is coupled with the second radio to receive therefrom a third RF signal in the second channel, the third planar antenna being arranged with its normal along a third direction.

A reading apparatus includes a mechanism to move an antenna between first and second positions, and a controller configured to: (a) control the antenna to transmit radio waves to wireless tags each attached to an object when the antenna is between the first and second positions; acquire, from response waves, information registered in each tag and indicating attributes of the object and the tag, and signal values of the response waves; and calculate an estimated position of each tag and a reliability level thereof based on the values. When the level of the position of a tag is less than a threshold or when the information of a tag indicates an attribute that can affect radio communications, the controller performs step (a) again, acquires signal values of response waves received from the tag, and calculates an estimated position of the tag and a reliability level thereof based on the values.

Disclosed are systems and methods for a computerized, network-based framework that provides enhanced algorithmic mechanisms for improving GSM location determinations for cell tower communications. The disclosed framework's operations can provide improved visit determinations / estimates and increased value for a user's wireless / cellular data, whereby optimized parameters from and / or of the signals associated with a user device (e.g., mobile device) and tower radio communications therebetween can be leveraged to discern the POIs a user has visited and / or is currently visiting. The location tracking of the user, within a predisposed uncertainty sector correlated among the user's device communications with corresponding radio towers, provides network coverage to track specific locations among POIs for which the user has visited and / or is currently located.

To provide a communication controller and a mobile relay device for appropriately controlling a position of the mobile relay device.SOLUTION: A radio communications system for covering a non-sensitive area and an area in which satisfactory radio communication is impossible by using a relay device comprises a mobile relay device for relaying radio communication between a base station device and a terminal device at a position to which the mobile relay device is moved. The mobile relay device acquires radio quality information from respective terminal devices, acquires positional information from a reference terminal device, estimates a position of a target terminal device, estimates a position of the reference terminal device, compares the estimated position of the reference terminal device with an acquired actual measurement position to calculate a difference between the estimated positions, calculates an error of the estimated position of the target terminal device, corrects the estimated position of the target terminal device by using the error of the estimated position of the target terminal device, estimates average transmission rates of the target terminal device and the reference terminal device for each movement destination candidate position, decides a movement position, and moves to the decided movement position.SELECTED DRAWING: Figure 3

This invention discloses a method for optimizing the direction-finding time efficiency of pulse signals in direction-finding equipment, belonging to the fields of radio communications and radio spectrum monitoring. The design utilizes the periodicity of pulse signals, such as those from radar, to determine the currently sampled data using a single direction-finding threshold. Separate sampled data exceeding the threshold is then combined and filled in the data format required by the direction-finding equipment, eliminating time losses caused by switching. Compared to traditional direction-finding methods, this method can improve the measurable pulse time efficiency from microseconds to nanoseconds.

A first terminal of a radio communications network. The first terminal includes at least one processor, at least one memory with computer program code, and at least one communication module and at least one antenna. The computer program code is configured in such a way that, using the processor, the communication module, and the antenna, it causes the first terminal to send first messages on a first radio resource to a group of further terminals, to receive at least one response, after sending the particular first message, from at least one of the further terminals of the group, to ascertain a resource change decision as a function of the at least one response, and to send second messages as a function of the resource change decision on a second radio resource to the group of further terminals, the second radio resource being different from the first radio resource.

A lightweight, efficient, autonomous sub-surface water data profiler (10) that can be easily programmed and deployed to collect sample data at a variety of water depths is disclosed. The profiler is a unique, simple-to-use, low-cost design with a low-cost depth control system that allows several dive / surface trips, an Android graphical interface for Bluetooth programming and a deployable antenna for retrieval after completing its mission. The collected data is achieved using an open-source Android interface and Bluetooth programming using Android and longer-range radio communications with a deployable antenna. The profiler is usable by anyone with a deep pond, lake, ocean or even a pool that they would like to monitor.

A method performed by an apparatus for handling a User Equipment access to a radio communications network is provided. The UE is using reduced capabilities. The reduced capabilities relate to reduced capabilities for communication in the radio communications network. The apparatus obtains information about a subscriber profile of the UE. When the UE accesses to the radio communications network using reduced capabilities, the apparatus determines whether or not the UE is authorized to access the radio communications network by using reduced capabilities, based on the obtained information about the subscriber profile of the UE.

In one embodiment, a boosting system includes a booster circuit. The booster circuit is configured to receive a direct current (DC) voltage input and to adjust the DC voltage input. The boosting system further includes a current sensing circuit coupled to the booster circuit and a first end of a power cable. The current sensing circuit is configured to measure a current at the first end of the power cable. The boosting system further includes one or more processors coupled to the booster circuit and the current sensing circuit. The one or more processors are configured to adjust an output of the booster circuit when the current sensing circuit indicates that the current at the first end of the power cable exceeds a first threshold. The first threshold is selected at least in part based on one or more safety standards of the power cable.