| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 455015000 | Two separate way transmission | 39 |
| 20080227387 | Los Mimo Beamforming - The invention discloses a point-to-point telecommunications system comprising a first transmitter which transmits information to a first receiver via electromagnetic waves. The first transmitter transmits on a number of antenna using a first frequency on at least a first and a second of said beams, and the first and second beams contain different information. The point-to-point connection between the transmitter and the receiver is achieved by means of at least a first repeater located between the transmitter and the receiver, said first repeater being used for said first beam. | 09-18-2008 |
| 20080242226 | Repeater for providing coverage within a wireless communications network and methods thereof - A repeater and methods thereof are provided. The example repeater first receives a donor signal (e.g., from a base station for repeating in a downlink direction, from a mobile station for repeating in an uplink direction, etc.) and a transmitted version of an internally generated pilot signal. The repeater configures an adaptive filter signal to cancel the received transmitted version of the internally generated pilot signal. In an example, the first receiving and configuring steps may be performed during a first mode of operation (e.g., a “training” mode). The repeater second receives the donor signal and a retransmitted version of the donor signal (e.g., retransmitted from the repeater). The repeater cancels the retransmitted donor signal based on the configured adaptive filter signal. | 10-02-2008 |
| 20080299899 | RF to IP bridge system and method of use - A two component highly portable and lightweight system for extending the transmission capabilities of Land Mobile Radio systems into areas lacking coverage due to structures, depth below the earth's surface, or varying terrain or other dead zones lacking coverage. The system utilizes the Radio over IP protocol to transfer two-way audio from one radio to another radio for re-broadcast inside a dead zone over a 900 MHz Ethernet-based point-to-point wireless link. The novel system includes RF to TCP/IP conversion and digital data transmission followed by a TCP/IP conversion to RF radio link and provides components and a method for bridging RF radio into dead zones. | 12-04-2008 |
| 20090203310 | SUPERPOSITION TRANSMISSION AND DETECTION OF ACCESS AND BACKHAUL SIGNALS - According to one embodiment of the invention, a wireless communication system (WCS) has a wireless relay and a base station adapted to process wireless access traffic for one or more mobile terminals (MTs) and to process wireless backhaul traffic. The wireless relay is adapted to generate a superimposed signal having a backhaul component intended for the base station and an access component intended for one of the MTs. The wireless relay is further adapted to allocate power between the backhaul and access components based on signal propagation conditions between itself, the base station, and the MT to render the backhaul component decodable at the base station and the access component decodable at the MT. | 08-13-2009 |
| 20090221231 | MULTI-USER MIMO RELAY PROTOCOL WITH SELF-INTERFERENCE CANCELLATION - Systems and methodologies for employing a multi-user Multiple Input Multiple Output (MIMO) relay protocol with self-interference cancellation in a wireless communication environment are provided herein. Data streams sent between user device(s) and base station(s) can traverse through a relay. Further, a decode and forward protocol can be employed by the relay rather than merely amplifying and forwarding the data streams. Moreover, each user device can listen to and decode data stream(s) sent by other user device(s) to the relay, and these decoded data stream(s) can be utilized for interference cancellation. Further, the user device(s) and the base station(s) can employ self-interference cancellation upon signals received from the relay. According to another example, an adaptive relay power allocation algorithm, which enhances power efficiency, can be leveraged by the relay for transmitting signals to the user device(s) and the base station(s). | 09-03-2009 |
| 20090247074 | Bi-Directional Signal Interface - A bi-directional signal interface includes a first waveguide that propagates a first traveling wave. The first waveguide has one end that is coupled to a RF input port that receives a RF transmission signal and another end that is coupled to a RF bi-directional port that receives a RF reception signal and that transmits the RF transmission signal. A second waveguide is positioned proximate to the first waveguide. The second waveguide has one end that is coupled to an output port that passes the received RF reception signal. A non-reciprocal coupler couples fields from the first waveguide to the second waveguide so that the RF reception signal from the bi-directional port couples from the first waveguide to the second waveguide in a substantially non-reciprocal manner and then passes through the output port, and the RF transmission signal from the RF input port passes through the first waveguide to the RF bi-directional port. | 10-01-2009 |
| 20090270027 | REPEATER SYSTEM FOR STRONG SIGNAL ENVIRONMENTS - A repeater system combines co-located antennas, an intentional imbalance in signal amplification between downlink and uplink, stability management and an amplification indicator to create a user-installed solution to co-channel interference within cellular systems, in strong signal environments such as elevated locations or high-rise building. The invention may be particularly relevant to cellular systems, such as CDMA, that allow limited imbalance between uplink and downlink path losses, thus enabling the design of an inexpensive repeater with a weaker or non-existent uplink, and which creates moderate signal amplification for selected line-of-sight signals, defeating co-channel interference over a small area. The difference in signal amplification on the downlink and uplink is maintained at a level below the capacity of the system to support imbalance, guaranteeing reliable cellular calls. | 10-29-2009 |
| 20090325481 | SHORT-RANGE CELLULAR BOOSTER - A repeater mediates traffic between a network transceiver and a user transceiver in a wireless communication system. The repeater comprises a network unit that maintains a network link with the network transceiver, a user unit that maintains a user link with the user transceiver, a two-way communication pathway between the network unit and the user unit; that facilitate the communication of signals between the network transceiver and the user transceiver in autonomous repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit, and beam-formers respectively coupled to the network unit and the user unit and adapted to communicate signals in an operating frequency band of the network and user transceivers and to control effective radiated power. | 12-31-2009 |
| 20100062707 | FREQUENCY CONVERSION DEVICE, METHOD AND SYSTEM - A frequency conversion device, method, and system are described. The device includes a first intermediate frequency (IF) filter, a first local oscillator, an up frequency converter, and a first duplexer. The first IF filter is adapted to receive an IF signal, and send the IF signal after performing an IF filtering on the IF signal. The up frequency converter is adapted to receive the IF signal after the IF filtering and a local oscillator signal, perform an up frequency conversion on the IF signal to obtain a microwave signal according to the local oscillator signal, and send the microwave signal. The first duplexer is adapted to receive the microwave signal, and send the microwave signal after performing a band pass filtering on the microwave signal. By the use of the frequency conversion device, the frequency conversion of a digital microwave outdoor unit (ODU) once is thus realized. | 03-11-2010 |
| 20100075596 | Multi-Band Wireless Repeater - Wireless repeaters comprising antennae having high electrical isolation are presented. Multi-band antennae are placed on opposing sides of a conductive ground plane to achieve high electrical isolation, preferably higher than 30 dB. The antennae are preferably placed at a distanced from the ground plane that is less than 0.5 wavelengths of a frequency associated with frequency bands to which the antennae are responsive. The presented antennae system reduces the minimum amount of isolation required for stable operation. | 03-25-2010 |
| 20100087142 | Method for Selecting a Channel to be Monitored by Subscriber Units that are Idle in a Communication System - In a two-way radio frequency (RF) communications system having at least one repeater, a plurality of channels, and a plurality of subscriber units, a repeater hosts a first channel that is currently serving as a rest channel. The channel that is currently serving as the rest channel is monitored by subscriber units that are idle in the system. When the repeater determines to select a second channel to serve as the rest channel, it determines whether there is at least one eligible channel to serve as the rest channel. If there is at least one eligible channel in the system, the repeater may select the second channel to serve as the rest channel from one of the eligible channels. | 04-08-2010 |
| 20100099352 | APPARATUS AND METHOD FOR RELAYING BETWEEN A BASE STATION AND A MOBILE STATION, AND THE BASE STATION - Disclosed is a cooperative relay station that relays between a base station and a mobile station when retransmitting a signal. Also, disclosed is a base station that receives a signal from a mobile station in mutual cooperation with the cooperative relay station. After the cooperative relay station receives and decodes a signal that the mobile station transmits to the base station or a service relay station, if an error of the decoded signal does not exist, it stores the received signal. If an error occurs when the base station decodes the signal that the mobile station transmits, the base station requests retransmission for the signal with the error to the cooperative relay station. If the cooperative relay station gets a request of retransmission, it transmits the signal that the base station requests to the base station. In this was, since an error rate may be reduced when the base station requests retransmission of the signal, resource reuse efficiency may become improved, interference may be reduced, and it is easy to adapt to a service being sensitive to time delay. | 04-22-2010 |
| 20100120360 | METHOD OF AND RADIO NETWORK FOR TRANSMITTING LAYERED DATA TO MULTIPLE RECEIVING STATIONS - A radio network with at least one sending station, at least one relay station and at least a first and a second receiving station transmits data organized in at least a first and a second layer, where at least the first layer is routed via a first path from the base station to the relay station to a first receiving station and at least the second layer is routed to the second receiving station via a different second path. | 05-13-2010 |
| 20100130124 | METHOD AND APPARATUS FOR USING A REMOTE DISTRIBUTED POWER LOCOMOTIVE AS A REPEATER IN THE COMMUNICATIONS LINK BETWEEN A HEAD-OF-TRAIN DEVICE AND AN END-OF-TRAIN DEVICE - Communicating messages between an HOT device ( | 05-27-2010 |
| 20100285743 | METHOD, SYSTEM, RELAY STATION AND BASE STATION FOR TRANSMITTING DATA MOBILE COMMUNICATION - A mobile communication data transmission method for a cell having one base station and more than one relay station involves switching the relay stations between at least two operating modes of signaling transmission under the control of the base station. A system transmits mobile communication data in a cell having one base station and more than one relay station. When transmitting an uplink signaling or a downlink signaling, the relay stations switch between at least two operating modes under the control of the base station. By using the method, network, relay station, and base station, data transmission in multiple modes can be achieved, so as to achieve a flexible relay scheme. | 11-11-2010 |
| 20110053498 | OUT-OF-BAND RADIO LINK PROTOCOL AND NETWORK ARCHITECTURE FOR A WIRELESS NETWORK COMPOSED OF WIRELESS TERMINALS WITH MILLIMETRE WAVE FREQUENCY RANGE RADIO UNITS - The present invention relates to a wireless transmitter comprising a transmitter radio unit working a wireless transmitter comprising a transmitter radio unit working in the millimeter wave frequency band using a directional antenna and a bidirectional radio unit working in a frequency range different from said transmitter radio unit and using an omnidirectional antenna. The invention further relates to a wireless receiver and a wireless relay. | 03-03-2011 |
| 20110189949 | REPEATER SYSTEM - The present invention provides a repeater system, comprising: first transceiver circuitry, for establishing communications with a base station of a cellular communications system; second transceiver circuitry, for establishing communications with a wireless device; and a single antenna system, comprising a plurality of antenna elements. Signals to and from the first transceiver circuitry and the second transceiver circuitry can each be received and transmitted through the single antenna system. The single antenna system includes beam definition circuitry, in which amplitudes of signals between the first transceiver circuitry and each antenna element, and between the second transceiver circuitry and each antenna element, can be adjusted independently, such that different beam patterns can be provided for the first transceiver circuitry and the second transceiver circuitry. | 08-04-2011 |
| 20120009868 | methods and apparatus for process control with improved commnication links - A control network carries information between nodes in a control system. For example, in one aspect of the invention, a control network includes first and second nodes, each of which is associated with at least one device in a control system, such as a controller, actuator, sensor, or otherwise. The first node is configured to wirelessly transmit information for simultaneous, or substantially simultaneous, transfer to the second node over at least two pathways. Those pathways can be made up of one or more network segments that interconnect nodes in the control network. In some cases, at least one of the at least two pathways is through a third and/or further nodes. Further, the first node can employ different radio channels, e.g., using different frequencies from one another, over at least one of the at least two pathways to transmit information to the second node. | 01-12-2012 |
| 20120094594 | PORTABLE COMPUTING DEVICE WITH HIGH-SPEED DATA COMMUNICATION - A portable computing device includes a radio frequency (RF) wired link, a core module, and a plurality of multi-mode RF units. When one or more of the multi-mode RF units are supporting a high-speed data communication, the core module is operable to detect a blocker that is adversely affecting the high-speed data communication. The core module is further operable to determine whether a radiation pattern alternative for the high-speed data communication will reduce the adverse affects on the high-speed data communication. When the radiation pattern alternative for the high-speed data communication will reduce the adverse affects on the high-speed data communication, the core module is further operable to enable the radiation pattern alternative. The one or more multi-mode RF units are operable to adjust at least one of transmission and reception of the high-speed data communication in accordance with the radiation pattern alternative. | 04-19-2012 |
| 20120100802 | Short-Range Cellular Booster - A repeater mediates traffic between a network transceiver and a user transceiver in a wireless communication system. The repeater comprises a network unit that maintains a network link with the network transceiver, a user unit that maintains a user link with the user transceiver, a two-way communication pathway between the network unit and the user unit; that facilitate the communication of signals between the network transceiver and the user transceiver in autonomous repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit, and beam-formers respectively coupled to the network unit and the user unit and adapted to communicate signals in an operating frequency band of the network and user transceivers and to control effective radiated power. | 04-26-2012 |
| 20120202418 | REAL-TIME CALIBRATION OF AN AIR TO GROUND COMMUNICATION SYSTEM - A method for real-time calibration of an air to ground two-way communication system. The method includes calibrating a ground base station antenna array according to forward link calibration coefficients received from an aircraft as part of a communication signaling protocol during operation of the air to ground two-way communication system. The method may also includes communicating between the ground base station antenna array and the aircraft over a narrow beam. | 08-09-2012 |
| 20120202419 | REPEATER SYSTEM FOR STRONG SIGNAL ENVIRONMENTS - A repeater system combines co-located antennas, an intentional imbalance in signal amplification between downlink and uplink, stability management and an amplification indicator to create a user-installed solution to co-channel interference within cellular systems, in strong signal environments such as elevated locations or high-rise building. The invention may be particularly relevant to cellular systems, such as CDMA, that allow limited imbalance between uplink and downlink path losses, thus enabling the design of an inexpensive repeater with a weaker or non-existent uplink, and which creates moderate signal amplification for selected line-of-sight signals, defeating co-channel interference over a small area. The difference in signal amplification on the downlink and uplink is maintained at a level below the capacity of the system to support imbalance, guaranteeing reliable cellular calls. | 08-09-2012 |
| 20120208453 | REMOTE CONTROLLED AIR GUN - An air gun system producing blasts resulting from the rapid opening of a main valve by movement of a piston which, as it moves out of its seat, releases air accumulated under pressure in a tank, the opening of the valve being triggered by an electric control module located on or in immediate proximity to the air gun controlled by an automatic command generator, in which the control module communicates with the command generator using two-way wireless communication. | 08-16-2012 |
| 20120289149 | Hopping Wireless Medical Care and Monitoring Device and Method of Operation - The present invention is related to a hopping wireless medical caring and monitoring system, which is an ANT multiple nodes hopping network and comprises at least one hopping node, at least one physical status measuring apparatus, a server and at least one user-end apparatus. The server communicates with the at least one user-end apparatus via the ANT network. The user-end apparatus reads a medical measurement result from the physical status measuring apparatus and transmits the results to the server via the ANT network. The present invention provides a wireless remote health and medical caring and monitoring system that is suitable for home-care or hospital. | 11-15-2012 |
| 20130084795 | Connection Arrangement in Relayed Wireless Communications - The present document describes a distributed communication arrangement, wherein a radio access network of a wireless telecommunication system provides a terminal device with two logical communication connections. Both uplink and downlink of a first logical connection are routed between a base station and the terminal device through a relay node. Uplink of a second logical connection is also routed between the base station and the terminal device through the relay node. Downlink of the second logical connection is, however, transmitted directly from the base station to the terminal device. Such an arrangement is used for cooperative communication purposes. | 04-04-2013 |
| 20130090056 | METHOD AND SYSTEM FOR PEER TO PEER WIDE AREA NETWORK COMMUNICATION AMONG RADIO SITES HAVING DYNAMIC REST CHANNEL BASE REPEATER STATIONS - A new group call request is received from a subscriber station at a rest channel repeater at a first network location. Corresponding new group call notifications are then transmitted to each of the other network locations over a wide area network to a current one of the repeaters acting as a rest channel repeater at each of the other network locations. Subsequently, an identity of a traffic channel repeater hosting the new call is received from each of the respective other network locations. An over-the-air notification is transmitted to other subscriber stations at the first network location identifying one of the first rest channel and another available channel as a channel for the new group call. Data received from the first subscriber station is then forwarded to each of the identified traffic channel repeaters at each of the other network locations via the wide area network. | 04-11-2013 |
| 20130210341 | BASE STATION AND METHOD - A base station includes a determination unit that determines whether user equipment performs radio communication through a booster, based on delay time of a signal transmitted to and received from the user equipment; a target SIR setting unit that sets a target SIR to be compared to a received SIR for performing transmission power control based on the received SIR of an uplink signal from the user equipment; a transmission power control signal generating unit that generates, based on the target SIR and the received SIR, a transmission power control signal to be set for controlling transmission power of the user equipment; and a transmitter that transmits the transmission power control signal to the user equipment. When determination is made that the radio communication is performed through the booster, the target SIR is set to be less than or equal to a predetermined upper limit value. | 08-15-2013 |
| 20130273841 | DONOR ANTENNA DEVICE, SERVICE ANTENNA DEVICE USED IN WIRELESS RELAY SYSTEM AND SIGNAL TRANSMISSION METHOD OF THE SAME - A signal transmission method used in a donor or a service antenna device in a wireless relay station is provided. The signal transmission method comprises receiving a first and a second direction signals by using an antenna and an optical transmission module. Each of a plurality of band filters performs filtering on the first direction signal. A control unit determines a transmission mode of the first signal according to the band of it, The control unit activates one of a plurality of first direction filters and one of a plurality of second direction filters between the antenna and the optical transmission module according to the transmission mode. The first and the second direction signal are transmitted to a remote device and an optical fiber connected device through the antenna and the optical transmission module. A donor antenna device and a service antenna device are disclosed herein as well. | 10-17-2013 |
| 20140187145 | COST-EFFECTIVE MOBILE CONNECTIVITY PROTOCOLS - Structures and protocols are presented for signaling a status or decision concerning a wireless service or device within a region to a network participant or other communication device (smartphone or motor vehicle, e.g.). | 07-03-2014 |
| 20140273816 | CIRCUIT ISOLATION USING A SIGNAL SPLITTER/COMBINER - According to some embodiments described herein, a system of directing signals may include a common port and a first-direction path configured for a first-direction signal that propagates in a first direction. The system may also include a second-direction path configured for a second-direction signal that propagates in a second direction that is opposite the first direction of the first-direction signal. Additionally, the system may include a power splitter/combiner that may include a first port communicatively coupled to the first-direction path, a second port communicatively coupled to the second-direction path and a third port communicatively coupled to the common port. The power/splitter combiner may be configured to receive the first-direction signal from the first-direction path at the first port and direct the first-direction signal to the third port such that the first-direction signal is directed toward the common port and away from the second-direction path. | 09-18-2014 |
| 20150079898 | WIRELESS REPEATER WITH ARBITRARY PROGRAMMABLE SELECTIVITY - The invention relates to wireless repeater systems and methods. In embodiments, such systems and methods involve receiving a wireless transmission signal; and processing the wireless transmission signal using a digital signal processing facility (DSP); wherein the DSP is adapted to filter at least one sub-band of the wireless transmission signal using a digital bandpass filter. | 03-19-2015 |
| 20150099458 | Network-Capable Medical Device for Remote Monitoring Systems - Systems and methods for communication include a medical device having a first receiver capable of wirelessly receiving medical device data over a wireless relay network from at least one network device, a first transmitter capable of wirelessly transmitting data over an internet-accessible wireless communications network, a second transmitter capable of wirelessly transmitting medical device data to a second medical device or a wireless relay module over the wireless relay network; and a controller coupled to the first and second transmitters, said controller capable of controlling said medical device to select one of said first or second transmitter for transmitting medical device data received by said first receiver. | 04-09-2015 |
| 20160036513 | AIRCRAFT FLIGHT DATA MONITORING AND REPORTING SYSTEM AND USE THEREOF - An aircraft flight data monitoring and reporting system is provided. The system comprises: an onboard flight data recording and reporting unit; a zero-configuration service discoverer; a remote base station; a remote flight data monitoring storage and analysis unit; a wireless communication link; and a network, the wireless communication link and network for communications between the aircraft flight data monitoring and reporting system and each of the base station and the flight data monitoring storage and analysis unit, wherein the zero-configuration service discoverer facilitates auto-discovering between the flight data recording and reporting unit and the base station. | 02-04-2016 |
| 20160119051 | MULTI-HOP RELAY MARITIME COMMUNICATION APPARATUS - A multi-hop relay maritime communication apparatus installed in a ship is disclosed. The maritime communication apparatus includes a first access module configured to comprise a plurality of directional antennas integrally formed; a second access module configured to comprise an omni-directional antenna; and a bridge configured to be connected to the first access module and the second access module via an Ethernet interface. | 04-28-2016 |
| 20160198318 | INTERCOM SYSTEM, MASTER STATION, AND COMMUNICATION CONTROL METHOD | 07-07-2016 |
| 455016000 | Simultaneous using plural repeaters at each location | 4 |
| 20090209200 | METHOD AND SYSTEM FOR DEPLOYING A WIRELESS REPEATER | 08-20-2009 |
| 20090286473 | ON-CHANNEL REPEATER AND ON-CHANNEL REPEATING METHOD - Provided is an on-channel repeater, which includes a receiver for receiving radio frequency (RF) signals; a subtractor for subtracting replica from the RF signals to thereby produce output signals of the subtractor; a repeating process unit for performing a repeating process onto the output signals of the subtractor; and a replica generator for calculating replica based on the output signals of the subtractor and the signals obtained after repeating process performed thereon and feeding the replica back to the subtractor. | 11-19-2009 |
| 20110045767 | METHOD AND SYSTEM FOR 60 GHZ DISTRIBUTED COMMUNICATION UTILIZING A MESH NETWORK OF REPEATERS - Methods and systems for 60 GHz distributed communication utilizing a mesh network of repeaters are disclosed and may include configuring antennas in remote RF modules in a wireless communication device, wherein each of the RF modules receive IF signals via coaxial lines. The RF signals may be transmitted via the antennas to a destination device via a mesh network that comprises the RF modules and one or more external repeaters. The IF signals in the coaxial lines may be tapped at the RF modules. The repeaters may be configured via a processor in the wireless communication device, where the control signals may be communicated to the RF modules via the coaxial lines. The RF modules may be configured utilizing a processor in the wireless communication device, where the control signals may be communicated via the coaxial lines. The RF signals may be generated from IF signals from baseband signals. | 02-24-2011 |
| 20160192206 | Outdoor-Indoor MIMO Communication System Using Multiple Repeaters and Leaky Cables - A MIMO communications system for communicating with a UE located inside a physical structure. The communication system includes a node comprising two node antennas. The node is configured for LOS wireless communication with at least first and second repeaters. The first and second repeaters each have a) an antenna provided outside the physical structure for outdoor MIMO communication with the node and b) a leaky cable provided inside the physical structure for indoor MIMO communication with the UE. | 06-30-2016 |
