33results about How to "Expand communication coverage" patented technology

A device includes a patient-portable remote monitoring unit to monitor one or more physiological characteristics of an individual and convey information characterizing the one or more physiological characteristics to a remote station. The monitoring unit includes a transmitter system capable to employ a selected one of three or more different communications channels to convey the information to the remote station, and a selection unit to select from among the three or more different communications channels for conveying the information to the remote station.

A system and method for performing Scheduling Assignments (SAs) for User Equipments (UEs) at a base station of a communication system by accounting for the different operating conditions UEs may experience or for the different data rates or data packet sizes UEs may require. This reduces a total size of SAs by introducing compact SAs, in addition to full SAs. For compact SAs, the range for the resource allocation or for the spectral efficiency of the signal transmission is restricted or some fields that exist in the full SA are eliminated without adversely impacting scheduling flexibility or system throughput. By reducing the total size of SAs through the use of compact SAs, the corresponding control signaling overhead is reduced, which improves system throughput, improves scheduling flexibility, or improves coverage.

The invention discloses a rotor unmanned aerial vehicle mooring power supply and communication system. The system comprises a power supply conversion module which is used for converting a high-voltage direct current of a ground power supply system into a low-voltage direct current required by a rotor aerial vehicle, a communication module and other loads; a photoelectric composite mooring line which is used for transmitting power and transmitting information; a mooring line deploying and retracting device which is used for adjusting a deploying length of the photoelectric composite mooring line in real time according to a height of the aerial vehicle; the ground power supply system which is used for converting ground power into A power form applicable to transmission of the photoelectric composite mooring line and supplying the power to the aerial vehicle and task loads; a control system which is used for monitoring a posture of the rotor unmanned aerial vehicle; a communication system which is used for supplying a communication interface between the task loads carried by the rotor unmanned aerial vehicle and a ground device; and a communication module which is used for communicating with the communication system and is used as a communication relay of the ground device for sending wireless information.

Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The disclosed communication technique and system therefor can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to a method and a device for receiving, by a terminal, broadcast information in a communication system. According to an embodiment of the present disclosure, the method by which a terminal receives broadcast information in a communication system comprises the steps of: receiving a plurality of radio frames from a base station; extracting at least one broadcasting channel signal from the plurality of radio frames in every set period; combining, for a preset time slot, the at least one broadcasting channel signal extracted in every set period; and acquiring broadcast information by decoding the combined broadcasting channel signal.

The invention provides a clustering networking method and a system suitable for a special network of a sky-near air-ground vehicle, The method comprises: a floater node broadcasts a CH message and a Hello message, wherein the CH message is used for declaring the floater node as the cluster head identity, the Hello message carries a network node information table, the floater node has a maximum stability metric, the stability metric is derived from the connectivity of the floater node and the average connection time, the CH message and Hello Message are received by the UAV node and the ground node, feedback information is sent to the floater node according to the CH message and the Hello message, the UAV node and the ground node are in the communication coverage range of the floater node, the feedback information is the join request information or the join refusing information or the joined information, and the floater node determines the node in the cluster where the floater node is located according to the feedback information. The invention solves the problem that the efficiency of railway traffic information transmission is low in areas where the roadside communication infrastructure is weak.

Disclosed herein are a method of beamforming and a 3D antenna array. The method includes: transmitting a first control channel; receiving first feedback information on a first antenna set and a first precoding scheme of a plurality of antenna sets included in the 3D antenna array, which are determined based on the first control channel, from a first communication node different from the communication node; and beamforming a traffic channel to be transmitted to the first communication node using the first antenna set and the first precoding scheme.

The present invention addresses a method, apparatus and computer program product for enabling enhanced repetition transmission for downlink control signal to improve machine type communication coverage. One or a plurality of downlink control channel signaling window lengths is / are predefined, a start position of a window in which repetition of download control signal is allowed is determined based on the determined control channel signaling window length for each window length, and transmission of repetition of download control signal is caused at the determined start position in the respective obtained window length.

The invention provides a rail traffic vehicle-ground communication system and method. The rail traffic vehicle-ground communication system includes a vehicle-mounted access device, a rail-side accessdevice, and a rail-side region controller; the vehicle-mounted access device and the rail-side access device can achieve wireless two way communication; the rail-side access device can achieve connection communication with the rail-side region controller through a rail-side backbone network; the vehicle-mounted access device includes a vehicle-mounted access unit and a vehicle-mounted antenna; thevehicle-mounted access unit communicates with the rail-side access device through the vehicle-mounted antenna; the rail-side access device includes a rail-side access unit and one or more phased-array antennae; the rail-side access unit can acquire location information of trains in a coverage range of the phased-array antennae through the rail-side region controller, can control and adjust the number of phased-array antenna composed beams and the angle of each beam in real time according to the location information of the trains so as to allow the phased-array antennae to meet the communication range of the vehicle-mounted antenna of the trains, and can controls communication between the phased-array antennae and the vehicle-mounted access device. The rail traffic vehicle-ground communication system and method can enlarge a communication coverage range of a CBTC system, and can achieve remote, large-range and high-quality communication.

The invention discloses a millimeter wave communication system based on directional antennas with a fixed direction, and the system comprises a transmitter which is used for generating a transmittingantenna signal, and the output end of the transmitter is connected to a plurality of antennas; a switch is arranged on a connecting path of each antenna and the output end of the transmitter; the input end of the receiver is connected to the plurality of switches so as to be connected to the plurality of antennas; the plurality of antennas includes a plurality of directional antennas fixed in a plurality of directions, and the plurality of directional antennas fixed in the plurality of directions are arranged to face a plurality of different directions in a fixed manner. The millimeter wave communication system disclosed by the invention has the characteristics of simple structure, simple tracking algorithm and power saving, and can improve the signal-to-noise ratio of the communication system and increase the communication coverage.

An optical communication system using a four-wavelength add / drop type wavelength division multiplexer (WDM) is provided for extending a communication coverage without adding an optical line and a repeater by installing a wavelength-pass add / drop type optical module at an optical line connected between an existing transmitting station or base station and an existing receiving station or repeater. The optical communication system includes a slave unit including, a first WDM for dividing or mixing a first wavelength and a second wavelength, a second WDM which is connected to the first WDM and divides or mixes the first wavelength and the second wavelength to allow them travel through a predetermined path, a third WDM which is connected to the first WDM and divides a third wavelength and a fourth wavelength from a communication line of the second wavelength; and a fourth WDM which is connected to the second WDM and multiplexes or demultiplexes the third wavelength and the fourth wavelength. Accordingly, by installing slave units at an optical line connected to an existing base station and an existing master unit, the base station can communicate with the master unit without distortion or loss of a signal and the slave units can communicate with each other.

Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The disclosed communication technique and system therefor can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to a method and a device for receiving, by a terminal, broadcast information in a communication system. According to an embodiment of the present disclosure, the method by which a terminal receives broadcast information in a communication system comprises the steps of: receiving a plurality of radio frames from a base station; extracting at least one broadcasting channel signal from the plurality of radio frames in every set period; combining, for a preset time slot, the at least one broadcasting channel signal extracted in every set period; and acquiring broadcast information by decoding the combined broadcasting channel signal.

The invention discloses an OFDM-based oversampling signal demodulation method and system and a receiving end, which are applied to an asymmetric communication architecture with a larger first signal sampling rate of the receiving end than a second signal sampling rate of a sending end. The method comprises the following steps that the receiving end carries out oversampling on a continuous OFDM signal in a time domain at the first signal sampling rate in order to obtain an oversampling OFDM signal in the time domain, and the receiving end carries out compensation calibration on the oversamplingOFDM signal to realize phase synchronization by utilizing a characteristic that a phase difference exists when the oversampling OFDM signal with the time delay in the time domain is mapped to a frequency domain; and the receiving end utilizes a kernel density estimation algorithm and a maximum likelihood decoding algorithm to demodulate the oversampling OFDM signal after compensation calibrationin order to restore an original signal. By means of the method, the system and the receiving end, the power consumption of the sending end can be reduced while the accuracy of signal demodulation is improved.

The present invention addresses a method, apparatus and computer program product for enabling enhanced repetition transmission for downlink control signal to improve machine type communication coverage. One or a plurality of downlink control channel signaling window lengths is / are predefined, a start position of a window in which repetition of download control signal is allowed is determined based on the determined control channel signaling window length for each window length, and transmission of repetition of download control signal is caused at the determined start position in the respective obtained window length.

The invention discloses a power data acquisition and transmission method and a system thereof. The method comprises the following steps: establishing signal connection between an RDSS (Radio Determination Satellite Service) Beidou communication module and an electric power measurement terminal; receiving a dialing signal of the electric power measurement terminal by the RDSS Beidou communication module so as to establish TCP (Transmission Control Protocol) connection with the electric power measurement terminal; establishing the TCP connection between the electric power measurement terminal and the RDSS Beidou communication module if dialing response is successful, and acquiring the first data transmitted by the electric power measurement terminal by the RDSS Beidou communication module; processing the first data acquired from the electric power measurement terminal by the RDSS Beidou communication module so as to acquire the second data, wherein the second data comprise electric powerdata; and transmitting the second data to the Beidou satellite by virtue of a Beidou RDSS communications link by the RDSS Beidou communication module. According to the configuration and processing method disclosed by the invention, the communication pressure on the RD channel load and background can be effectively reduced, the deployment cost of the electric power measurement terminal can be reduced, and the existing power resources can be fully utilized.

The invention discloses a dual-mode meter reading technology based on LoRa and carrier waves. The technology comprises a LoRa carrier dual-mode built-in module, a collector, a carrier concentrator, aLoRa base station, a communication management machine and an uplink metering platform which are installed on an electric energy meter, wherein the LoRa carrier dual-mode built-in module and the collector which are installed on the electric energy meter execute tasks after receiving task commands transmitted by the concentrator through power line carriers, and transmit the task commands back to theconcentrator through the power line carriers after task data collection is completed. The dual-mode meter reading technology based on LoRa and carrier waves is advantaged in that through combinationof two channels of LoRa and carrier waves, wireless and wired synchronous communication is achieved, and the communication coverage range is greatly expanded.

The present invention provides a system, device, method and storage medium for wireless communication, wherein the method includes: generating a first baseband signal based on an original signal from a signal source; generating a second baseband signal based on the first baseband signal ; Generate a radio frequency signal based on the second baseband signal, and transmit the radio frequency signal to the target mobile terminal; adjust the transmission power of radio frequency signals belonging to different physical bearer resources based on power configuration signaling. The system, equipment, method and storage medium disclosed in the present invention can avoid or significantly reduce interference between co-frequency multiplexing signals and improve communication coverage.

The invention discloses a networking design and method of an optical fiber quantum communication system, including a site 1, a site 2, an encryption key and a decryption key, both sites 1 and 2 are data centers, site 1 is a data transmission center, and site 2 is the data receiving center, the encryption key is set at the lower end of site 1, quantum gateway A is set above the encryption key, quantum channel is set at the right end of quantum gateway A, quantum gateway B is set at the right end of quantum channel, and quantum gateway B is set at the lower end of the encryption key Security encryption router A, quantum security encryption router A has a VPN tunnel on the right end, quantum security encryption router B is on the right end of the VPN tunnel, an IP network is on the right end of the encryption key, a decryption key is on the right end of the IP network, quantum gateway B and quantum The secure encryption router B is connected to the decryption key, and the decryption key is connected to the site 2. The network design and method of the optical fiber quantum communication system are simple in structure, with a greatly improved communication rate, a significantly increased communication coverage, and at the same time reduced information Characterization of nonlinear effects in the transfer process.

The invention provides an information processing method, system and control device. By dividing the parking locks in the parking lot into individual parking lock clusters, on the one hand, the parking lot control device inquires the target parking lock cluster to which the parking lock belongs, and sends the target parking lock cluster The master parking lock sends control information, and then the master parking lock forwards to the slave parking lock, so that the slave parking lock performs the operation indicated by the control information. On the other hand, during the process of sending parking information from the slave parking lock to the parking lot control device, It is forwarded by the master parking lock in the target parking lock cluster to which the slave parking lock belongs. By dividing the parking lock into various parking lock clusters, the master parking lock in the parking lock cluster forwards the control information or parking information, which expands the communication coverage and solves the problem of parking lots caused by poor communication coverage in the prior art The technical problem of low communication efficiency between the control device and the parking lock.

The invention discloses a communication system based on a dual-frequency self-organizing network base station. The system includes: at least two dual-frequency self-organizing network base stations and application terminals; wherein, the dual-frequency self-organizing network base station includes a relay device and a single-frequency self-organizing network base station. frequency ad hoc network equipment; the relay equipment and the application terminal are wirelessly connected; the first single frequency ad hoc network equipment of one of the dual frequency ad hoc network base stations and the second single frequency ad hoc network equipment of another dual frequency ad hoc network base station The self-organizing network equipment is connected by wireless communication; the beneficial effect of the present invention is that the same-frequency simulcasting wireless interconnection between relay stations can be realized without adding hardware equipment, thereby expanding the communication coverage, and the networking is simple and reliable and can meet the actual communication requirements. Technical requirements.

The invention discloses a marine monitoring floating platform. The marine monitoring floating platform is provided with a task system and an energy system. The task system comprises a target detection unit, an electromagnetic environment monitoring unit, a marine environment monitoring unit, a data processing unit, a communication unit and an information service push unit. The target detection unit is used for conducting target detection on an environment and generating detection information; the electromagnetic environment monitoring unit is used for monitoring an electromagnetic environment and generating first monitoring information; the marine environment monitoring unit is used for monitoring a marine environment and generating second monitoring information; the data processing unit is separately connected with all other units and used for conducting separate analysis and comprehensive analysis on the detection information, the first monitoring information and the second monitoring information and obtaining analysis results; the communication unit is connected with the data processing unit and used for sending all the information and the analysis results to a management end and making communication with the management end or a ship; the information service push unit is connected with the data processing unit and used for pushing all the information and the analysis results to a mobile terminal. According to the marine monitoring floating platform, synergistic monitoring is achieved through the target detection unit, the electromagnetic environment monitoring unit and the marine environment monitoring unit, and the monitoring effect is improved.

The present invention provides a clustering networking method and system suitable for the dedicated network of sky-air-ground vehicles, the method includes: the aerostat node broadcasts a CH message and a Hello message, wherein the CH message is used to declare the aerostat node as a cluster The first identity, the Hello message carries the network node information table, the aerostat node has the maximum stability measure, the stability measure is obtained according to the connection degree and the average connection time of the aerostat node, the UAV node and the ground node receive the CH message, Hello message, send feedback information to the aerostat node according to the CH message and Hello message, the UAV node and the ground node are within the communication coverage of the aerostat node, and the feedback information is join request information or refuse to join information or joined information , the aerostat node determines the node in the cluster where the aerostat node is located according to the feedback information. It solves the problem of low effectiveness of railway traffic information transmission in areas with weak roadside communication infrastructure.

A mobile terminal for performing power control in accordance with the present invention comprises: a power tracker configured to supply a supply voltage to a power amplifier; and a bypass booster disposed between the battery and the power tracker and configured to boost the voltage from the battery through a booster or bypass without boosting the voltage through the booster, and the mobile terminal can also increase communication coverage in a new communication system in a higher frequency band.

The invention provides a method and a device applied to an initial access network of a terminal, a method and a device applied to an initial access network of a base station, and communication equipment. The method applied to an initial access network of a terminal comprises the following steps: sending first random access information to a base station, the first random access information comprising first transmission information of second random access information to be received; receiving second random access information sent by the base station, wherein the second random access informationcomprises second transmission information for sending the second random access information; and when the first transmission information is consistent with the second transmission information, sendingthird random access information by utilizing the first transmission information so as to carry out initial access. The random access information sent by the terminal can be correctly received by the base station, so that the initial access of the terminal and the base station is completed, the access delay requirement is ensured, and the terminal can save more power.

The invention discloses a power data collection and transmission method and a system thereof. The method includes: establishing a signal connection between an RDSS Beidou communication module and an electric power metering terminal; Connect; if the dial-up response is successful, the power metering terminal establishes a TCP connection with the RDSS Beidou communication module, and the RDSS Beidou communication module obtains the first data transmitted by the power metering terminal; the RDSS Beidou communication module processes the first data obtained from the power metering terminal, Obtain second data, the second data includes power data; the RDSS Beidou communication module transmits the second data to Beidou satellites through the Beidou RDSS communication link. The configuration and processing method of the invention can effectively reduce the communication pressure on the RD channel load and the background, not only can reduce the deployment cost of the power metering terminal, but also can make full use of the existing power resources.

In order to solve the existing problems of limited communication capacity, low communication rate, small communication coverage, and low communication quality, the present invention proposes a quantum communication system, including a quantum gateway system, a quantum information carrier, a transfer channel system and a physical channel system. Quantum information carriers include bosons such as photons and Fermi-type superpartners such as photons, fermions such as electrons, and particles such as electron superpartners. Transfer channel systems include, but are not limited to, Banach spaces and Hilbert spaces. Physical channel systems include, but are not limited to, fiber optic transmission systems. The application of the entanglement state properties between qubits in the quantum communication system can effectively solve the problems of limited communication capacity, low communication rate, small communication coverage, low communication quality, and high communication cost in the existing communication system, and at the same time reduce the non-trivial communication in the process of information transmission. Linear effect, once the improvement of communication quality has been applied in practice, the research and development of capacity expansion and speed-up will have a brighter future than the current optical fiber communication.

The invention provides a metasurface-based four-beam eddy field conformal reflector antenna, so as to solve the problem of a small radiation coverage of a conformal eddy field antenna in the prior art. The metasurface-based four-beam eddy field conformal reflector antenna comprises a mirror and a feed source, wherein the mirror adopts a parabolic cylindrical metasurface structure and comprises a parabolic cylindrical dielectric substrate, one side, pointing to an aperture surface or deviating from the aperture surface, of a normal positive direction is printed with a metal ring array, the other side is printed with a metal backplane, the metal ring array is divided to i*i areas, each area is formed by 2*2 subareas, each subarea comprises j*j uniformly-distributed metal ring microstructures, and the initial phase difference between phase compensation values of metal ring microstructures in two subareas on a main diagonal and metal ring microstructures in two subareas on a slave diagonalin each area is 180 DEG. Eddy beams can be generated in four directions, the radiation coverage is increased, and conformal loading on a non-planar carrier is realized.

The invention discloses a frequency hopping and time hopping data link communication system based on IGSO. The frequency hopping and time hopping data link communication system comprises an IGSO satellite, a ground service management station, a user data link terminal and a handheld terminal. The user data link terminal can be directly connected with the communication satellite; the handheld terminal can establish connection with the communication satellite through the ground service management station. The communication system adopts variable-speed quick frequency hopping, time hopping and parallel synchronous demodulation technologies, and has the characteristics of strong anti-interference capability, low time delay, high transmission rate and the like; by utilizing an inter-satellite link, three satellites can realize single coverage of about a half of the whole world, and space-ground integrated data exchange and wide-area communication between high-latitude and low-latitude regions can be realized.

The invention discloses an IGSO-based frequency-hopping and time-hopping data link communication system, comprising: an IGSO satellite, a ground service management station, a user data link terminal, and a hand-held terminal; the user data link terminal can directly establish a connection with the communication satellite; the hand-held terminal Connections can be established via terrestrial service management stations and communication satellites. The communication system adopts variable speed fast frequency hopping, time hopping and parallel synchronous demodulation technology, which has the characteristics of strong anti-interference ability, low delay, and fast transmission rate; using the inter-satellite link, the three satellites can realize the communication of about half of the world. One layer of coverage can realize space-ground integrated data exchange and wide-area communication between high and low latitude regions.