137results about How to "Expand the transmission range" patented technology

A device, method, computer program and computer readable medium allowing for vehicle to vehicle and vehicle to infrastructure communication. An ignition key radio technology may used in addition to WLAN-based communication in a vehicle in order to communicate with other vehicles or infrastructure. The ignition key radio technology is used to send only selected data which have been altered significantly. The remaining data are not sent or kept for the WLAN communication.

A layout of a wireless communication circuit on a printed circuit board (PCB), which is a rectangular board wherein a first side is a Y-axis and a second side is an X-axis. The layout has a first antenna located at a corner between the first side and the second side. An antenna switch and a first filter are located at middle y-coordinate and a X-coordinate. A RF integrated circuit (RFIC) is located after the first filter. A first regulator is located near the second side and higher than the RFIC. A media access control (MAC) is located at about a middle y-coordinate and higher than the first regulator. An oscillator is located at a corner between the second side and the third side. A second regulator is located near the fourth side and above the first regulator. A power amplifier is located near the fourth side above the RFIC. A second filter and a transmitting / receiving (T / R) switch are located before the power amplifier. A second antenna is located at a corner between the first side and the fourth side.

An illuminating lens includes: a light entrance surface through which light emitted from a light source enters the lens; and a light exit surface through which the light that has entered the lens exits the lens. The light exit surface has: a concave portion intersecting the optical axis; and a convex portion provided around the concave portion to extend continuously from the concave portion. The light exit surface is formed in a shape such that a curvature C of micro-segments of the light exit surface in a cross section including the optical axis has a maximum value at a position outward from the midpoint of the convex portion.

The present invention relates to power management within the context of wireless ad-hoc networks. More specifically to the effects of using different transmit powers on the average power consumption and end-to-end network throughput in a wireless ad-hoc environment. This power management approach reduces the system power consumption and thereby prolongs the battery life of mobile nodes. Furthermore, the invention improves the end-to-end network throughput as compared to other ad-hoc networks in which all mobile nodes use the same transmit power. The improvement is due to the achievement of a tradeoff between minimizing interference ranges, reduction in the average number of hops to reach a destination, reducing the probability of having isolated clusters, and reducing the average number of transmissions including retransmissions due to collisions. The present invention provides a network with enhanced end-to-end throughput performance, and lower transmit power.

A method of making a mounting patch for mounting an electronic assembly in the inner liner or a pneumatic tire includes the steps of providing a power source, embedding the power source into a quantity of uncured rubber, and curing the uncured rubber by applying sufficient heat and pressure to the uncured rubber such that the power source is secured in the rubber. The provided power source may correspond to one or more batteries. Additional components that may be incorporated with the mounting assembly may include at least one conductive element, which may also be embedded into the quantity of uncured rubber. An antenna may be configured with undulations to allow longitudinal stretching of the antenna and then also embedded into the quantity of uncured rubber. A preferably non-conductive adhesive layer may be applied to selected portion of the power source, conductive element, and / or the antenna before the step of embedding in the uncured rubber.

A communication terminal which sets a communication session between a plurality of communication terminals through a network to perform data transmission and reception includes a measuring unit which measures round-trip delay time (RTT) or one-way delay time between the communication terminals for performing transmission and reception on the basis of the received acknowledgement, a reception bandwidth measuring unit which measures a reception bandwidth in a reception terminal of the communication terminals on the basis of the received acknowledgement, a correcting unit which corrects a value of the round-trip delay time or the one-way delay time by using at least the reception bandwidth, and a transmission bandwidth determining unit which determines a transmission bandwidth on the basis of the value of the corrected round-trip delay time or the corrected one-way delay time.

The present disclosure relates to a communication technique for converging an IoT technology with a 5G communication system for supporting a higher data transmission rate beyond a 4G system, and a system therefor. The present disclosure may be applied to an intelligent service (for example, a smart home, a smart building, a smart city, a smart car or connected car, healthcare, digital education, retail business, a security and safety related service, or the like) on the basis of a 5G communication technology and an IoT related technology. The present invention provides a method for performing random access by a terminal in a wireless communication system supporting beamforming, the method comprising the steps of: receiving, from a base station, uplink resource information for transmitting a preamble and random access response (RAR) information corresponding to the resource information; determining, on the basis of the uplink resource information, a resource for transmitting at least one preamble through beam sweeping; and transmitting the at least one preamble to the base station through the beam sweeping.

The invention provides a wireless charging system of a wireless sensor network. The wireless charging system is formed by a base station and multiple wireless sensor nodes. Each wireless sensor node is provided with a first controllable resonant antenna, a rectification filtering module, a voltage stabilization module, a power supply management module, an energy storage module, a first microprocessor, a first wireless communication module and a sensor, wherein the first microprocessor makes a charging decision on the basis of electric quantity information reflected as feedback by the power supply management module, and controls on or off of a control switch S1 and a control switch S2 of the first controllable resonant antenna, thereby controlling the wireless sensor node to freely switch among three states including reception, relay and silence and increasing the transmission range of wireless power supplying of a wireless sensor network. Meanwhile, smart, quick and highly efficient charging can be achieved on the basis of capability supply needs of the nodes, the influence among multiple resonant nodes can be eliminated, and then the transmission efficiency and the transmission power are steady.

A method and a system for enabling an enhanced operating mode of a mobile communication device (102) are disclosed. The method includes receiving (502) an authorization message from an authority (104) that is capable of communicating wirelessly with the mobile communication device. The authorization message is then checked (504) for authenticity of the authority. On authentication of the authorization message, the enhanced operating mode of the mobile communication device is enabled (506), allowing communication between the authority and the mobile communication device, even in emergencies.

In the field of mobile communications, a method, an apparatus, and a system for pushing information, and a method and an apparatus for obtaining information are provided. The method for pushing information includes: generating a Zigbee message, adding push information to the Zigbee message, and sending the Zigbee message carrying the push information to a Zigbee mobile terminal in a Zigbee information push network; or includes: forwarding a Zigbee information request message sent by a Zigbee mobile terminal in a Zigbee information push network to an Application Server (AS), receiving a Zigbee information response message that carries push information and is returned by the AS, and forwarding the Zigbee information response message to the Zigbee mobile terminal. The method for obtaining information includes: receiving a Zigbee message from a Zigbee information node and extracting push information.

The invention provides a routing protocol for achieving a VDES. The routing protocol adopts an IEEE802.11s protocol standard, is of the structure of an open system interconnection seven-layer model and comprises a physical layer, a link layer, a network layer and a transmission layer; and the routing protocol has the automatic networking capacity and can send received information to all nodes in the coverage range of the protocol, match addresses of the various nodes with destination addresses in routing information, correct a path according to routing table information and provide a reliableand lowest-cost path between a source node and a destination node. Each node generates a routing table, the routing tables are updated once at set intervals and sent to all the nodes in the coverage range, and the path is automatically corrected according to the routing table information. In this way, the transmission range of roadbed signals can be relatively widened, and the coverage range of anexisting land broadband wireless network is expanded to the sea.

A method and apparatus for controlling the signal / noise ratio of optical add / drop signals in an optical WDM transmission system having a transmitter unit, a receiver unit and at least one optical add / drop multiplexer for transmitting optical express signals and at least one optical add / drop signal wherein the power spectrum of the pre-emphasized express signals is determined, and the signal level of the at least one optical add / drop signal is adapted to the power spectrum determined for the express signals.

A wireless communication system for transmitting signals having a wireless positioning system being responsive to incoming signals for processing the same to generate coordinate information for determining the position of said wireless communication system, in accordance with an embodiment of the present invention. The wireless communication system further includes a phase controller module being responsive to said coordinate information for controlling the phase of the output signals for transmission in a specified direction by performing beamforming, said wireless communication system for performing beamforming to increase the range of transmission of said output signals.

The invention discloses a remote variable frequency irrigation monitoring system based on ZigBee and general packet radio service (GPRS). In the prior art, wires are arranged complexly and are difficult to extend. The system comprises a field monitoring part and a remote monitoring center, wherein the field monitoring part comprises a data acquisition node, a frequency converter control node, an electromagnetic valve control node and a field convergence node; a wireless ZigBee communication protocol is adopted in the communication of the field monitoring part; the remote monitoring center consists of a personal computer (PC) machine and monitoring software; the data acquisition node, the frequency converter control node and the electromagnetic valve control node are used for acquiring theinformation of an irrigation field, and the information is transmitted to the field convergence node and transmitted to the remote monitoring center through a GPRS network; the remote monitoring center is used for displaying the information of the irrigation field in real time and accurately controlling the irrigation by controlling the frequency converter control node and the electromagnetic valve control node; and the system realizes unmanned remote irrigation monitoring by combining the ZigBee technology and the GPRS technology.

The invention discloses a method for using a robot to real-time and dynamically position and monitor an indoor object based on RFID. According to the invention, RFID and a robot are utilized to address poor real-timeness and high cost of indoor positioning and monitoring. The method includes the following steps: arranging "positioning-assistant labels" on indoor fixed objects for positioning coordinates and a "positioning-required label" on an object for performing positioning and monitoring, mounting a RFID reader on a walking robot, the RFID reader and labels conducting information interaction; providing label ID, type and monitoring object information to a label encoding; sorting signals detected by the reader in a stronger-weaker signal intensity order in correspondence to a near-far distance order, the robot updating the coordinate thereof through the "positioning-assistant labels", detecting the "positioning-required label" by obtaining the distance between the robot and the object on the basis of the signal intensity classification, realizing positioning, storing the result to a database, determining safety, and if the result turns to be unsafe, sounding the alarm. According to the invention, the method requires simple computing, is fast to respond, has low cost, and is flexible to set. The method is applied to monitoring object safety in exhibition venues, warehouses, etc, and the safety of people in elder houses and kindergartens, etc.

The invention provides an unmanned aerial vehicle emergency rescue high-altitude base station comprising a bearing platform, a wireless communication system and a backhaul device, wherein the bearing platform is an unmanned aerial vehicle, the wireless communication system and the backhaul device are connected with each other and are loaded on the mooring unmanned aerial vehicle, the wireless communication system comprises a RRU module communication device and an antenna, the RRU module communication device is in wireless connection with a user through the antenna, the backhaul device comprises a BBU module communication device and a backhaul system, The RRU module communication device establishes a data transmission connection with the BBU module communication device, and the BBU module communication device is in data transmission connection with a machine room PTN through the backhaul system. The unmanned aerial vehicle emergency rescue high-altitude base station has the advantages of low cost, simple operation, large bearing capacity, long air residence time and high environmental adaptability. The unmanned aerial vehicle emergency rescue high-altitude base station can quickly rise in hash environments, quickly start a communication station and can perform remote operation. The unmanned aerial vehicle emergency rescue high-altitude base station serves as an emergency communication station to meet different emergency relief scenarios, such as emergency relief, security anti-terrorism, hot spot coverage and other communication needs.

A marker for underground assets employs a long life battery to provide an active mode for recording data from a sensor or the like and / or for boosting transmissions after being activated by an interrogation signal, the long life battery greatly increasing the range of such underground markers. In some embodiments, the marker antenna may be automatically tuned for different environmental conditions of the underground marker. A field unit for locating the marker may provide for dead reckoning ability in the absence of reliable radio location.

A method for transmitting a signal is described, wherein the method has transforming a signal into a frequency domain to obtain a spectrum, forming a filtered spectrum according to a filter spectrum and occupying a set of subcarriers of a frequency domain representation of an Orthogonal Frequency Division Multiplex (OFDM) signal with the filtered spectrum. A temporary signal is obtained by transforming the frequency domain representation of the OFDM signal into a time domain. The temporary signal is subjected to a phase modulation.

A multi-functional adaptation winder is provided, which includes a wiring part, a transmission connector, a tapping part, at least one adapter and a connecting kit. The transmission connector is connected with an outlet wire at one end of the wiring part. The tapping part is provided with at least one connector which is connected with an outlet wire at the other end of the wiring part. The adapter is plugged into the connector of the tapping part and is provided with at least one attaching hole at an external portion thereof The connecting kit is provided with at least one attaching segment and a spigot. The spigot is connected with the tapping part, and the attaching segment is matched with the attaching hole.

A wireless remote USB hub apparatus includes a server end operation processor module as the data processing center, for converting and processing data; a server end wireless Wi-Fi communication module is coupled to the server end operation processor module, for transceiving data of Wi-Fi communication protocol format; and at least one USB port, for connecting electronic devices that supports USB, such as a USB drive or printer. When the electronic device connects to the USB port, the server end operation processor module receives a connection signal data from the USB port, converts the connection signal data format into Wi-Fi communication protocol format, and then transmits the connection signal data via the server end wireless Wi-Fi communication module to a personal computer or other client device. Thereby a user of the client device may remotely utilize the electronic device connected to the wireless remote USB hub apparatus.

The invention relates to a Bluetooth relaying method and device. The method comprises the steps that a Bluetooth establishing request of first electronic equipment is responded; first Bluetooth connection is established with the first electronic equipment; Bluetooth configuration information, sent by the first electronic equipment, of second electronic equipment is received through first Bluetooth; second Bluetooth connection is established with the second electronic equipment according to the Bluetooth configuration information; data transmission between the first electronic equipment and the second electronic equipment is executed by means of first Bluetooth connection and second Bluetooth connection. According to the Bluetooth relaying method and device, the Bluetooth signal transmission range is widened, and the Bluetooth equipment availability is improved.