27 results about "Frequency sharing" patented technology

The invention discloses a satellite-ground uplink frequency sharing method, device and equipment, a medium and a program product, and the method comprises the steps: receiving first information; the first information comprises a mapping table between the wave position and the frequency; receiving second information; the second information comprises a beam hopping pattern; performing frequency configuration on a beam digital filtering function according to the mapping table between the beam position and the frequency in the first information and the beam hopping pattern in the second information; according to the method, the problem that the satellite coverage and the spectrum utilization rate are contradictory under the existing satellite-ground frequency sharing single interference avoidance mode can be solved, and satellite-ground same adjacent channel coexistence under whole satellite coverage is realized.

Method (100) for detecting an imbalance in the operation of a drive unit (10) by means of a detection unit (11), the drive unit (10) comprising at least one shaft (12) and at least one electric machine (13), wherein the electric machine (13) is operatively connected to the shaft (12) in such a way that the shaft (12) can be driven by the electric machine, the method (100) comprising: - Performing (110) a frequency analysis of an operating signal (S) of the drive unit (11) to decompose the operating signal (S) into its frequency components (F) i ), where the operating signal (S) is characteristic of a course of an operating parameter (N) of the electrical machine (12) over time (t), - Determine (120) an amplitude mean value (A) for at least one frequency component (F) i ) of the operating signal (S), - Calculating (130) an amplitude deviation (ΔA) between the amplitude mean (A) and an amplitude reference value (A), which is specific in particular for the frequency component in question. ref ), - Determining the imbalance status of the shaft (11) based on the amplitude deviation (ΔA).

Systems and methods for frequency sharing may include a first wireless personal area network (WPAN) device which establishes a connection with a second WPAN device. The connection may include a plurality of WPAN channels established in a frequency range which includes one or more channels reserved for wireless local area network (WLAN) communication. The first WPAN device may transmit data via one or more of the plurality of WPAN channels, to the second WPAN device.

The invention discloses a time-frequency resource allocation method, device and equipment based on satellite-ground frequency sharing, a medium and a program product, and the method comprises the steps: determining a downlink adjustment frequency and a first uplink frequency band according to a mapping relation between a wave position and a frequency; the downlink adjustment frequency is determined according to the downlink frequency of each wave position of the satellite service indicated by the mapping relation; the first uplink frequency band is determined according to the uplink frequency of the current wave position of the satellite service indicated by the mapping relation; according to the downlink adjustment frequency, carrying out wave position level frequency configuration on the downlink part bandwidth; according to the first uplink frequency band, carrying out wave position level frequency configuration on the uplink part bandwidth; according to the method, flexible scheduling of time-frequency resources can be realized, scheduling of different part bandwidths under different wave positions is realized, a satellite coverage range and a spectrum utilization rate are considered, and satellite-ground same adjacent channel coexistence under whole satellite coverage is realized.

The present disclosure relates to a method and apparatus for estimating maximum allowable power in a frequency sharing system. A method for performing an available spectrum inquiry according to an embodiment of the present disclosure may comprise: determining an allowable power level for the second device based on whether there is an overlap between an exclusion area for the second device or at least one of the one or more protection area contours and a location uncertainty area of a first device; and transmitting a message for an available spectrum inquiry response including information on the determined allowable power level. Herein, the second device supporting another service whose frequency is shared with a specific service based on location-related information of the first device may be selected.

The present invention discloses an integrated system for optical fiber sensing and communication through sharing co-frequency resources. Specifically, the system consists of two parts: optical path detection and circuit demodulation. The entire system consists of a continuous wave laser, a fiber coupler, a polarization controller, a mach-zehnder modulator, an arbitrary waveform generator, an erbium-doped fiber amplifier, an optical filter, an optical fiber annular, an optical fiber, a photodetector, a data acquisition device, a balance detector and a data acquisition card. A transmission optical signal and a sensing detection light are generated by the same laser, transmission performance and sensing performance of the system are changed by adjusting modulation power of a transmission signal, the transmission signal is obtained by using direct detection at far-end, a sensing signal is obtained by using heterodyne coherent detection at local-end. The present invention provides a simple, compact and high-efficiency integrated system for co-frequency sharing optical fiber sensing and communication, to solve the deficiencies of the existing integrated system in practical applications.

The present invention discloses an interference avoidance beam planning method and system based on a spatial isolation forbidden zone. The method includes: constructing aggregate interference scenarios under co-frequency interference of high-orbit and low-orbit satellite systems based on uplink and downlink links and ground grid division respectively; establishing a worst-case aggregate interference judgment model of the low-orbit satellite system for the uplink and downlink links of the high-orbit satellite arc based on time slicing; constructing a phased array antenna beam planning objective function for frequency sharing between high-orbit and low-orbit satellite systems based on the interference limit standard I / N; and performing beam planning based on a spatial isolation forbidden zone based on the phased array antenna beam planning objective function. The present invention overcomes the disadvantage that the traditional interference avoidance method based on isolation angle or isolation zone needs to shut down all satellite beams, and can effectively avoid interference in interference-exceeding-limit areas under the coverage of NGSO satellite beams, providing a method reference and technical support for protecting the communication link of the GSO satellite system and ensuring the working efficiency of the NGSO satellite system.

The embodiment of the invention provides an electronic fence information reporting method and equipment, and the method comprises the steps: searching an outer edge base station and a hole edge base station according to a protection region of at least one ground base station, the protection region of the ground base station being represented by the positions of N sampling points on the boundary of the protection region, N being a positive integer; determining electronic fence information according to the protection area of the outer edge base station and the protection area of the hole edge base station; and reporting the electronic fence information to a satellite. By applying the technical scheme provided by the embodiment of the invention, the complementary blind area shared by the same frequency of the satellite and the ground can be reduced.

Systems and methods of frequency sharing may include a first wireless personal area network (WPAN) device that establishes a connection with a second WPAN device. The connection may include a plurality of wireless local area network (WLAN) channels established within a frequency range, the frequency range including one or more channels reserved for wireless local area network (WLAN) communications. The first WPAN device may transmit data to the second WPAN device via one or more of the plurality of WPAN channels.

A control apparatus controls a base station for a local network. The control apparatus sets a transmission output value of the base station based on an instruction value received from a management apparatus that manages allocation of a frequency resource to a plurality of local networks for dynamic frequency sharing among the plurality of local networks. The control apparatus notifies the management apparatus of a set value in such a manner that the management apparatus can coordinate a use of a frequency resource among the plurality of local networks based on the set value in a case where the set value being set is below the instruction value received from the management apparatus or a transmission output value set in advance.

Two channels (21, 22) have signal paths operating at first and second frequencies (F1, F2) within respective frequency ranges. Frequency conversion is controlled in the second signal path 22, between

For a first radio frequency (RF) carrier, a network node of a wireless communication network configures two or more bandwidth parts (BWPs) in the first RF carrier, with each BWP aligned with a corresponding other RF carrier among two or more other RF carriers located within the RF spectrum spanned by the first RF carrier. The node determines a frequency sharing configuration for each BWP based on the radio resource usage of the corresponding other RF carrier, and configures a wireless communication device to use the corresponding BWP in the BWPs. For example, the node determines a resource usage pattern for control-related signaling transmitted on the other RF carriers and sends rate matching information for the BWPs of the first RF carrier. Each BWP occupies the RF spectrum used by the corresponding other RF carrier among the other RF carriers, and the rate matching information sent for each BWP depends on the resource usage pattern determined for that corresponding other RF carrier.

Methods and systems are provided for frequency sharing in RANs using artificial intelligence including scanning, by a spectrum classification unit (SCU) of a channel-aware reactive mechanism (ChARM) app, a plurality of frequencies associated with ongoing communication, classifying, by a DNN of the SCU, I / Q samples of each of the scanned frequencies, the DNN executable via the one or more of the near-RT RIC, the DU, the RU, or combinations thereof, receiving, at a policy decision unit (PDU) from the SCU, the classified frequencies, applying, by the PDU, an embedded policy to the classified frequencies, transmitting commands from the PDU to a DU for making changes to the ongoing communication according to the applied policy, receiving, at a control interface implemented in the DU, the commands transmitted by the PDU, and changing, by the DU according to the commands, an operating parameter of a RU.

An information processing device according to the present invention comprises: a generation unit that generates location information of a communication device which uses radio waves for dynamic spectrum access, on the basis of information pertaining to a private network having different network settings for respective regions; and a transmission unit that transmits the location information to a device which performs a process for the dynamic spectrum access.

The present invention discloses an integrated system for optical fiber sensing and communication through sharing co-frequency resources. Specifically, the system consists of two parts: optical path detection and circuit demodulation. The entire system consists of a continuous wave laser, a fiber coupler, a polarization controller, a mach-zehnder modulator, an arbitrary waveform generator, an erbium-doped fiber amplifier, an optical filter, an optical fiber annular, an optical fiber, a photodetector, a data acquisition device, a balance detector and a data acquisition card. A transmission optical signal and a sensing detection light are generated by the same laser, transmission performance and sensing performance of the system are changed by adjusting modulation power of a transmission signal, the transmission signal is obtained by using direct detection at far-end, a sensing signal is obtained by using heterodyne coherent detection at local-end. The present invention provides a simple, compact and high-efficiency integrated system for co-frequency sharing optical fiber sneisng and communication, to solve the deficiencies of the existing integrated system in practical applications.

Systems and methods for frequency sharing may include a first wireless personal area network (WPAN) device which establishes a connection with a second WPAN device. The connection may include a plurality of WPAN channels established in a frequency range which includes one or more channels reserved for wireless local area network (WLAN) communication. The first WPAN device may transmit data via one or more of the plurality of WPAN channels, to the second WPAN device.

The invention discloses an orthogonal frequency division multiplexing underwater acoustic communication system transmission method, device, equipment and product, and relates to the technical field of underwater acoustic communication, and the method comprises the steps: carrying out the phase modulation and linear conversion of a sending information bit at a sending end, and obtaining a real number sequence which has a sparse characteristic; performing inverse discrete Hartley transform modulation on the real number sequence to obtain modulated information; sending the modulated information to a receiving end through an underwater acoustic channel; and performing signal conversion and demodulation on the modulated information at a receiving end, and recovering original information bits. An underwater acoustic channel has the characteristic suitable for transmitting sparse signals, complex signals are mapped into a sparse real number sequence suitable for an underwater acoustic system through phase modulation and linear conversion, and the influence of noise on the signals is reduced. Through effective transmission of high-order phase modulation symbols, the requirement of high-data-rate communication is met, original information bits are accurately restored through signal conversion and demodulation at a receiving end, and the transmission stability of an underwater acoustic channel is improved.

The invention relates to the technical field of satellite-ground frequency sharing, and provides an interference level determination method and device. The method comprises the following steps: acquiring an uplink interference value of network equipment; determining transmission loss, antenna gain and coverage area corresponding to the antenna gain; determining a ground transmitting terminal interference value of each wave position according to the uplink interference value, the transmission loss, the antenna gain and the coverage area corresponding to the antenna gain of the network equipment; and the uplink interference value of the network equipment is reversely deduced according to the interference value of the ground transmitting end of each wave position. Wherein the antenna gain comprises any one of the following items: the average gain of a beam main lobe and any one of an antenna pattern; the coverage area corresponding to the antenna gain comprises any one of the beam coverage area and the coverage area of different antenna gain gears. According to the interference level determination method and device provided by the invention, the problem that the uplink interference data at different positions and different pointing angles are difficult to normalize can be solved, and the accurate evaluation of the uplink interference value is realized.

We propose a mechanism that enables the application of frequency sharing technology to communication systems where it has not been previously applicable. [Solution] The information processing device of the present disclosure includes a control unit. The control unit acquires a first frequency range used by a first communication device and first area information relating to the first communication device. The control unit determines, based on the first area information and second area information relating to the second communication device, whether to permit the start or continuation of radio wave transmission by a second communication device whose second frequency range overlaps with the first frequency range.

The invention provides a satellite-ground base station frequency sharing method and device, equipment and a medium, and aims to solve the problem that high-efficiency satellite-ground frequency sharing cannot be realized in the prior art. The method comprises the following steps: receiving at least one piece of first ground base station information corresponding to a satellite base station sent by a satellite-ground collaboration gateway, wherein the first ground base station information comprises a wave position association relationship between the satellite base station and the first ground base station and a first working frequency of the first ground base station; respectively determining a third working frequency corresponding to the at least one beam position group or the beam position according to the beam position association relationship, the first working frequency and a second working frequency of the satellite base station; and performing service scheduling on the terminal corresponding to the first wave position group or the wave position by adopting a third working frequency corresponding to the first wave position group or the wave position, wherein the first wave position group or the wave position is any one wave position group or wave position in the at least one wave position group or wave position. According to the invention, efficient satellite-ground frequency sharing can be realized.

The present invention discloses an intersatellite link system acceptable aggregate interference assessment method, device and medium, wherein the method comprises: selecting an interfered system and multiple co-frequency communication systems as interfering systems; obtaining system characteristic parameters and orbital position parameters of the interfered system and the interfering system; calculating the interference value of the interfered intersatellite link by the co-frequency communication link according to each system parameter; calculating the aggregate interference value of the interfered intersatellite link at each simulation moment according to the interference value, and judging whether the aggregate interference value exceeds the standard. The present invention comprehensively considers the frequency sharing environment of the intersatellite link, increases the interference consideration within the intersatellite link system, and also increases the situation where the intersatellite link, satellite-to-ground link and ground link outside the system jointly generate interference, which can more accurately reflect the actual degree of aggregate interference received by the intersatellite link system in actual on-orbit operation, and effectively improve the accuracy of the intersatellite link frequency sharing compatibility assessment results.

Embodiments of the present disclosure are directed to systems and methods for avoiding or mitigating co-channel interference between terrestrial and satellite radio access networks (RANs). Based on a determination that co-channel interference is occurring between a set of signals communicated with a satellite RAN and a set of signals communicated with a terrestrial base station, one or more co-channel mitigation procedures may be executed. The co-channel mitigation procedures function to limit or eliminate the overlap between the satellite and terrestrial signals on the same frequency band that can negatively affect wireless communication sessions with UEs - particularly for UEs attached to the satellite RAN.

Embodiments of the present disclosure are directed to systems and methods for avoiding or mitigating co-channel interference between terrestrial and satellite radio access networks (RANs). The systems and methods comprise one or more terrestrial base stations and one or more satellite base stations, each configured to transmit signals across overlapping frequency bands. The system further comprises applying an orthogonal spread spectrum code to the signals transmitted by the satellite base station, while the terrestrial base station transmits without such coding.

The invention discloses a satellite-ground uplink frequency dynamic sharing method, device, equipment, medium and product, and the method comprises the steps: calculating an uplink beam hopping direction, beam hopping time and digital filtering configuration according to a hopping beam and frequency adjustment pattern determined based on a mapping relation between a beam position and a frequency; and then dynamically adjusting the frequency configuration of the beam digital filtering function corresponding to each uplink beam according to the uplink beam hopping direction, the beam hopping time and the digital filtering configuration, thereby realizing that different beams receive different frequency ranges under the whole satellite. Therefore, the problem that the satellite coverage and the spectrum utilization rate are contradictory under the existing satellite-ground frequency sharing single interference avoidance mode is solved, and the coexistence of the satellite and the adjacent frequency under the whole satellite coverage is realized.

The application provides a satellite-terrestrial spectrum sharing method, device and equipment and a readable storage medium, and belongs to the technical field of communication. The satellite-terrestrial spectrum sharing method comprises the following steps: acquiring low-orbit satellite network information and ground cellular network information in a first time slot period, wherein the first time slot period comprises at least one time slot; obtaining a constraint target and a constraint condition of satellite-terrestrial spectrum sharing according to the low-orbit satellite network information and the ground cellular network information; obtaining a service beam in each beam cluster in a plurality of beam clusters in the first time slot period and a service time slot corresponding to the service beam in the first time slot period according to the constraint target and the constraint condition; each beam cluster comprises at least one low-orbit satellite beam, and the service beam is at least one beam in the at least one low-orbit satellite beam. According to the application, the low-orbit satellite network information and the ground cellular network information are considered, a beam hopping pattern is designed, and the application of the beam hopping technology in the satellite-terrestrial frequency sharing scene is realized.

The invention, which relates to the technical field of the space deployable antenna, provides a multi-frequency shared variable-stiffness modular foldable antenna supporting mechanism comprising a central module, a driving module and a peripheral module. The working frequency bands of the central module and the peripheral module are different, and the working efficiency of the antenna is ensured while multi-frequency sharing of the antenna is realized by changing the surface precision of the central module and the peripheral module. The structure that the center module is closed and the peripheral module is open is adopted, so that the rigidity of the center module is effectively enhanced. The motor drives the disc chuck to drive the device to be folded and unfolded, and the adjustability of the device is improved.

Embodiments of the present disclosure are directed to systems and methods for avoiding or mitigating co-channel interference between terrestrial and satellite radio access networks (RANs). The systems and methods comprise one or more terrestrial base stations and one or more satellite base stations, each configured to transmit signals across overlapping frequency bands. The system further comprises applying an orthogonal spread spectrum code to the signals transmitted by the satellite base station, while the terrestrial base station transmits without such coding.