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

The embodiment of the invention provides a vehicle communication method, device and equipment, and the method comprises the steps that a first vehicle obtains a grouping request, the grouping requestis used for requesting the grouping of a plurality of vehicles, and the first vehicle is a vehicle located at an end part in the plurality of vehicles; wherein the first vehicle performs a vehicle discovery operation, after the first vehicle discovers M second vehicles, the first vehicle acquires vehicle information of the M second vehicles, the M second vehicles are other vehicles except the first vehicle in the plurality of vehicles, and M is an integer greater than 1; the first vehicle sends vehicle information of each of the plurality of vehicles to the second vehicle, wherein the vehicleinformation is used for communication of the plurality of vehicles; and the first vehicle determines a host vehicle and activates the WLTBN in the host vehicle, so that the plurality of terminal devices communicate through the WLTBN in the host vehicle. And the vehicle communication efficiency 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 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 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 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 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.

The invention discloses a multi-relay route establishment scheme of a low-altitude relay system, facing to emergent data communication. A receiving node configured with a gateway and a return link function module, at least two enhancement-type aerial relay platforms loaded on a low-altitude balloon, and a plurality of ground mobile terminals containing wireless interfaces are used in the multi-relay route establishment scheme. Broadcast messages are firstly sent to the relay platforms by the receiving node in a route establishing process; a communication link that the relay platforms reach the receiving node is established; route information is broadcast to other relay platforms and the ground mobile terminals by the relay platforms after random waiting time; a communication link between the relay platforms and the communication links between the ground mobile terminals and the relay platforms are established; directional antennae and a high-power wireless AP (access point) are used by each relay platform, and each relay platform has high-capacity caching, so that data storing and forwarding functions can be realized; and the lower deployment cost and the wider coverage range can be realized by adopting a multi-hop manner by the network, and the condition that high-quality communication networks can be rapidly and flexibly established in disaster areas can be realized.