12th week of 2016 patent applcation highlights part 65 |
Patent application number | Title | Published |
20160087665 | DEVICE AND METHOD FOR SWITCHABLY ROUTING DOWN-CONVERTED RF SIGNALS - A device for switchably routing down-converted radio frequency (RF) signals from a plurality of inputs to a plurality of outputs, and a method of operating the same. The device includes a respective switch for each output. The device also includes an interconnect arrangement. The interconnect arrangement includes a respective transmission line for each input. Each transmission line includes a plurality of branches for routing a down-converted RF signal received at the input of that transmission line to the switch of each output. The switch of each output is operable selectively to connect one of the transmission lines to its output. The interconnect arrangement also includes a plurality of cross-over points at which two of the branches cross over each other. | 2016-03-24 |
20160087666 | ELECTRONIC DEVICE - An electronic device includes a first shell defining a first opening; a power module received in the first shell; and an electronic card connector including a tray passing through the first opening to be received in the first shell, and a receiving member attached to the first shell for receiving the tray. The electronic card connector includes a permanent magnet mounted in the tray and an electromagnet attached to the first shell and facing the permanent magnet. The electronic device further includes a current control module electrically coupled with the power module and configured to control the power module to magnetize or de-magnetize the electromagnet. When the electromagnet is de-magnetized, the tray is attracted by the permanent magnet to engage the tray with the first shell. When the electromagnet is magnetized, the tray is driven to disengage the tray with the first shell by the permanent magnet. | 2016-03-24 |
20160087667 | Wireless Communications Device - A wireless communications device is provided. A first antenna and a second antenna are disposed on the wireless communications device, where an electrical length of the first antenna is N times an electrical length of the second antenna, where N is an integer greater than or equal to 1. The first antenna and the second antenna are disposed on a printed circuit board by means of common ground connection, that is, ground points of the first antenna and the second antenna are a same ground point, which reduces input impedance at the ground point of the first antenna and the second antenna, so that energy fed from the antennas is evenly distributed in a horizontal direction and a vertical direction of the printed circuit board. | 2016-03-24 |
20160087668 | OPTIMIZED WIRELESS CHARGING SYSTEM - A transmission device that includes a fixed support for receiving an electronic appliance. The transmission device has at least one first and one second retaining elements defining between them a receiving space, the second retaining element being movable with respect to the fixed support along a main direction so as to give the possibility of adapting the size of the receiving space. The transmission device includes a transmission element attached to the retaining elements by a mechanism that includes a first return element connecting the transmission element to the first retaining element and a second return element connecting the transmission element to the second retaining element. The stiffness of the first return element is equal to the stiffness of the second return element. | 2016-03-24 |
20160087669 | DYNAMICALLY CHANGE THE CENTER OF GRAVITY OF A TABLET - Systems and methods are described for reducing a felt weight of a mobile device, for example, by providing an apparatus in the mobile device, the apparatus comprising: a component collection having at least one selected hardware component of the mobile device. The apparatus further includes a sensor configured to provide a signal corresponding to a position on the mobile device where a user would grip the mobile device. The component collection is configured for movement within an interior volume of a casing of the mobile device based, at least in part, on the signal provided by the sensor. | 2016-03-24 |
20160087670 | MAGNETIC PRIVACY FILTER - A magnetic privacy filter is disclosed. The magnetic privacy filter is adapted to protect the screen of a mobile device and has an anti-peep function. The magnetic privacy filter includes a filtering element and several ferromagnetic elements embedded in the filtering element. Accordingly, when the anti-peep function is needed, the magnetic privacy filter is adhered to the screen of the mobile device; while when the anti-peep function is not needed, the magnetic privacy filter can be detached from the mobile device instantly. | 2016-03-24 |
20160087671 | HIGH FREQUENCY CIRCUIT DEVICE - A high frequency circuit device that can avoid an occurrence of a stress concentration to a dielectric substrate during a temperature increase caused by a difference in coefficients of linear expansions of a chassis and a metal housing of a high frequency module is provided. | 2016-03-24 |
20160087672 | SENSOR DEVICE AND SENSOR ARRANGEMENT - An integrated sensor device ( | 2016-03-24 |
20160087673 | CANCELLATION CIRCUITS AND TRANSCEIVER CIRCUITS TO SUPPRESS INTERFERENCE - An interference-cancelling circuit includes a main delay line, a first power divider, a first power combiner, and first circuits. The main delay line delays a number of transmitting signals. The first power divider is coupled to the main delay line. Each of the first circuits including n branch circuits is configured to generate cancellation signals for canceling leakage signals (where “n” is an integer of 2 or more). A first branch circuit of the n branch circuits is coupled between the first power divider and the first power combiner. A (k−1)-th branch circuit of the n branch circuits is coupled to a k-th branch circuit of the n branch circuits (where “k” is an integer from 2 to n). The first power combiner outputs cancellation signals generated by the first circuit. A transceiver circuit is also provided. | 2016-03-24 |
20160087674 | Ultra-Wideband Frequency Position Modulation using Nonlinear Compressed Sensing - A Frequency Position Modulation system for encoding signals for transmission. A signal's discrete frequency support is used to represent symbols. The signal can be non-uniformly spread over many GHz of instantaneous bandwidth, resulting in a communications system that is resilient to interference and difficult to intercept. The FPM symbols are recovered using adaptive projections that use an analog polynomial nonlinearity paired with an analog-to-digital converter that is sampling at a rate at that is only a fraction of the instantaneous bandwidth of the signal. In the presence of partial band interference, nonlinearities generated by the transmitter of are exploited by the receiver to help unambiguously recover tones that could otherwise be lost. The nonlinearities are generated by driving the power amplifier of the transmitter into saturation to induce distortions at a desired level. | 2016-03-24 |
20160087675 | ETHERNET INTERFACE MODULE - An Ethernet interface module comprises a duplex port operable to transfer frames between said Ethernet network and a device and a path coupling a receive portion of the duplex port to a transmit portion of said first full duplex port. A queue is disposed in said first path. Evaluation apparatus is coupled to the queue and determines whether a received frame is addressed to said Ethernet interface module and whether a frame type field contains a frame type. The Ethernet interface module is operable in a first mode such that every said received frame is echoed back out the full duplex port; and is operable in a second mode such that each received frame that meets predetermined evaluation criteria is echoed back out the duplex port and those received frames that do not meet the predetermined evaluation criteria are discarded. | 2016-03-24 |
20160087676 | OPTICAL TRANSMITTER - An optical transmitter includes four LDs, four LDDs that drive the LDs, four monitoring PDs that convert some of optical signals emitted from the LDs to electrical sisals and output them, a controller that controls the LDDs in response to the electrical monitoring signals generated by the monitoring PDs, and a switch that receives the electrical monitoring signals though signal lines from the monitoring PDs and electrically connects only a selected signal line selected by the controller to the controller. The controller outputs a selection signal that selects the selected signal line from the signal lines is order to the switch, and controls the LDDs so that an optical power of the LD corresponding to the PD approaches a predetermined value, according to the electrical monitoring signal outputted from the PD corresponding to the selected signal line. | 2016-03-24 |
20160087677 | Low Power Modes for Data Transmission from a Distribution Point - Methods and devices are discussed where a common bit loading table is constructed from minimum gain from a plurality of bit loading tables for different combinations of lines being in a transmit or quiet mode. | 2016-03-24 |
20160087678 | ADAPTIVE SUB-BAND ALGORITHM FOR POINT-TO-POINT COMMUNICATION IN PLC NETWORKS - Embodiments of methods for adaptive sub-band point-to-point communication are presented. In one embodiment a method includes performing functions using a power line communication (PLC) transmitter device. The method may include receiving a first data packet having a first adaptive sub-band information set, the first sub-band information set comprising information from a PLC transmitter. The method may also include extracting the first sub-band information set from the first data packet. Additionally, the method may include analyzing the first sub-band information set to determine a transmitter sub-band hopping pattern. The method may further include setting a corresponding receiver sub-band hopping pattern synchronized to the sub-band hopping patter used by the PLC transmitter and hopping to a subsequent sub-band as defined by the receiver sub-band hopping pattern. | 2016-03-24 |
20160087679 | Method and System for Transmitting Data Via Direct Current Lines - The disclosure relates to a method for transmitting data via direct current lines for energy transmission from a first communication unit to a second communication unit. The method includes generating a high-frequency test signal having a predefined voltage amplitude by the first or the second communication unit and coupling the high-frequency test signal onto the direct current lines. The method further includes determining a current level caused by the high-frequency test signal on the direct current lines by the first communication unit, and determining a voltage amplitude for a high-frequency signal based on the current level caused by the test signal. The method also includes coupling a high-frequency signal having the predetermined voltage amplitude onto the direct current lines by the first communication unit. The disclosure also relates to a system for transmitting data via direct current lines for energy transmission and to a photovoltaic installation having such a system. | 2016-03-24 |
20160087680 | BROADCAST AUTOMATIC COMMUNICATION METHOD AND SYSTEM THEREOF - A broadcast automatic communication method and a system thereof are provided. The system applies near field communication assemblies to establish a first far field communication path between far field communication assemblies of first and second electronic devices. The first and second electronic devices respectively produce first and second message packages. The method applies the near field communication assemblies of the first and second electronic devices to form first and second near field communication ranges, respectively. The first and second near field communication ranges are united, a first near field communication path is established, and the first message package is stored in the second electronic device and/or the second message package is stored in the first electronic device. The second or first message package is analyzed to establish the first far field communication path. Disclosure enables numerous electronic devices communicating with each other by broadcasting method. | 2016-03-24 |
20160087681 | Method for a Contactless Communication Between Two NFC Devices with Impact Reduction of an External Noise Emission - A system can be used for contactless communication of information between a first device and a second device, each having an antenna intended to be coupled via a near magnetic field. The first device includes a transmit chain having first circuitry configured to generate a digital data stream corresponding to the information to be transmitted, and second circuitry configured to generate a first amplitude-modulated and dithered signal in the antenna of the first device from this stream and from an application of a first dithering. The second device includes a receive chain having third circuitry configured to carry out a frequency transposition of a second amplitude-modulated and dithered signal originating from the first signal, with application of a second dithering synchronous with the first dithering. | 2016-03-24 |
20160087682 | Device for Authenticating Wanted NFC Interactions - An electronic device that includes a sensor module, a measuring module and a near field communication (NFC) device. The sensor module receives an input signal. The measuring module measures the strength of the input signal and determines whether the input meets a predefined threshold. If the strength of the input signal meets the predefined threshold, the measuring module activates the NFC device. If the strength of the input signal does not meet the predefined threshold, the measuring module de-activates the NFC device. | 2016-03-24 |
20160087683 | COMMUNICATION DEVICE, CONTROL METHOD, PROGRAM, AND FRONT END - The present technology relates to a communication device, a control method, and a program which enable reliable selection of a desired target. A CLF transmits a polling command received from a NFC reader for selecting a candidate of a final target to targets, selects the candidate of the final target, by setting a P2P application as a target having the highest priority in the selection of the candidate of the final target, selects the final target based on a command other than the polling command received from the NFC reader, and controls to lower the priority of the P2P application, in a case where the P2P application is selected as the candidate of the final target and the P2P application is not selected as the final target. The present technology can be applied to a communication device supporting an NFC standard, for example. | 2016-03-24 |
20160087684 | CONFIGURATION METHOD OF A MULTIMEDIA SYSTEM - A configuration method of a multimedia system comprising a first device and at least one adjacent device having a mechanism to communicate with the first device. The first device comprises a mechanism to read/write data from/to an NFC data carrier. The method comprises a set-up phase and an exploitation phase. | 2016-03-24 |
20160087685 | METHODS AND SYSTEMS FOR CONTACTLESS BATTERY DISCHARGING - Disclosed herein are methods and systems for contactless battery discharging. One embodiment takes the form of a contactless power-transfer system that includes a wireless-communication interface, a controller connected to the wireless-communication interface, a magnetic-resonance circuit, a power-conditioning circuit connected to the magnetic-resonance circuit, and a load element connected to the power-conditioning circuit. The controller is configured to determine that a smart-battery system is in a discharge-needed state and responsively transmit, via the wireless-communication interface, a battery-discharge command instructing the smart-battery system to generate an oscillating magnetic field. The magnetic-resonance circuit is configured to couple with the generated oscillating magnetic field and responsively output a corresponding power signal. The power-conditioning circuit is configured to receive the power signal from the magnetic-resonance circuit, rectify the received power signal, and output the rectified power signal. The load element is configured to receive the rectified power signal from the power-conditioning circuit. | 2016-03-24 |
20160087686 | WIRELESS POWER TRANSMISSION APPARATUS AND METHOD THEREFOR - The present invention relates to a wireless power transmission apparatus and a method therefor, and more particularly to a wireless power transmission apparatus for supplying wirelessly power to a plurality of wireless power reception devices using different wireless power transmission/reception means. A wireless power transmission apparatus according the present invention includes: a power transmission module for transmitting wirelessly power by means of the magnetic field of one of a plurality of predetermined frequency bands; a communication module for communicating with a wireless power reception device; and a controller for setting a power transmission mode based on a plurality of device profiles reflecting the frequency bands used for wireless power transmission/reception received from a plurality of wireless power reception devices. | 2016-03-24 |
20160087687 | Communication in a wireless power transmission system - A power transmitting unit receives, from a power receiving unit, a first out-of-band communication signal identifying the power receiving unit as being available to receive wireless power. The power transmitting unit transmits, to the power receiving unit, a second out-of-band communication signal including a request to transfer useful amounts of wireless power and receives a third out-of-band communication signal including first information about power transfer capability of the power receiving unit. The power transmitting unit transmits, to the power receiving unit, a fourth out-of-band communication signal including second information about power transfer capability of the power transmitting unit, and initiates transmission of the useful amounts of wireless power to the power receiving unit by verifying compatibility of the power transfer capability of the power transmitting unit and the power receiving unit based on the first information and the second information. | 2016-03-24 |
20160087688 | ELECTRONIC APPARATUS - An electronic apparatus includes an antenna that wirelessly receives power; a power control unit that accumulates or supplies power received by the antenna by inputting power; a communication unit that communicates with a power supply apparatus via the antenna; a switching unit that switches between a path from the antenna to the power control unit and a path from the antenna to the communication unit; and a driving unit that operates with power received by the antenna and drive the switching unit, wherein an input impedance of the driving unit viewed from the antenna is higher than an input impedance of the power control unit viewed from the antenna or an input impedance of the communication unit viewed from the antenna. | 2016-03-24 |
20160087689 | ELECTRONIC APPARATUS - An electronic apparatus includes an antenna that wirelessly receives power; a power circuit that inputs power received by the antenna; a communication circuit that performs communication using the antenna; switches; and a resonant element that resonates with the antenna, wherein the resonant element is arranged between the antenna and one of the power circuit and the communication circuit, and wherein at least one of the switches is arranged between the resonant element and the one circuit, and at least one switch different from the switch is arranged between the other circuit and the antenna. | 2016-03-24 |
20160087690 | POWER SUPPLY APPARATUS AND ELECTRONIC APPARATUS CONFIGURED TO CARRY OUT WIRELESS POWER SUPPLY - A power supply apparatus includes a power supply unit configured to wirelessly supply power to an electronic apparatus, a communication unit configured to transmit, to the electronic apparatus, information indicating whether to perform a foreign object detection process for detecting a foreign object, and a control unit configured to cause the communication unit to transmit the information to the electronic apparatus before outputting of predetermined power to the electronic apparatus. | 2016-03-24 |
20160087691 | WIRELESS INDUCTIVE POWER TRANSFER - A power transmitter ( | 2016-03-24 |
20160087692 | INFORMATION READING SYSTEM, INFORMATION READING APPARATUS, STORAGE MEDIUM HAVING STORED THEREIN INFORMATION READING PROGRAM, AND INFORMATION READING METHOD - An information reading system performs near field communication with an information storage medium. The information reading system includes: an antenna structure including a plurality of antenna coils, each arranged across at least one of the others and each having a reading area; and a computer processor configured to perform near field communication with the information storage medium in each reading area, thereby reading information from the information storage medium in proximity to the reading area. | 2016-03-24 |
20160087693 | INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING APPARATUS, STORAGE MEDIUM HAVING STORED THEREIN INFORMATION PROCESSING PROGRAM, AND INFORMATION PROCESSING METHOD - An information processing system includes an information storage medium and an information processing apparatus for performing near field communication with the information storage medium. The information processing apparatus includes: at least one antenna coil; and a computer processor configured to: perform near field communication with the information storage medium via the antenna coil, thereby reading information from the information storage medium in proximity to the antenna coil; detect an orientation of the information storage medium that can perform the near field communication; and perform predetermined processing using the information read from the information storage medium and the orientation of the information storage medium. | 2016-03-24 |
20160087694 | System and Method for Downlink Open-Loop Multi-User Coordinated Multipoint Transmission Using Sparse Code Multiple Access - Embodiments are provided to enable downlink open-loop multi-user coordinated multipoint (MU-CoMP) transmission using sparse code multiple access (SCMA). In an embodiment, a network controller selects, in a cluster of multiple transmission points (TPs) and multiple user equipment (UEs), a MU-CoMP with SCMA transmission mode and a UE paring scheme for data transmission from a set of TPs to a set of UEs. The controller schedules the set of UEs for data transmission from the set of TPs, including coordinating and allocating, for each TP in the set of TPs, a plurality of SCMA layers to the UEs in accordance with the selected MU CoMP with SCMA transmission mode. The controller also determines values for control signaling based on the scheduling. The control signaling configures the set of UEs to detect the data transmission from the TPs. | 2016-03-24 |
20160087695 | Method and Apparatus of Beam Training for MIMO Operation and Multiple Antenna Beamforming Operation - The disclosed invention provides an efficient method for MIMO beam training for multiple antennas to enable spatial multiplexing MIMO operation and spatial combining in a wireless network. The invention discloses a simple and efficient beam-training algorithm and protocol for MIMO operation that operates in high SNR condition for reliable MIMO operation. In one novel aspect, the best MIMO beam combinations are determined after TX sector sweeping and RX sector sweeping. The best MIMO beam combinations are determined in such a way that no any selected TX/RX sectors come from the same TX/RX antenna/beamformer. The selection criteria includes not only signal quality, but also considers mutual interference and leakage among multiple MIMO spatial streams to improve overall MIMO performance. Simultaneous RX or TX training are also supported to reduce training time. | 2016-03-24 |
20160087696 | METHOD AND APPARATUS FOR CLOSED LOOP TRANSMIT DIVERSITY TRANSMISSION INITIAL ACCESS - Uplink precoding in closed loop transmit diversity (CLTD). The methods and apparatus relate to precoder operations during an initial stage using default precoder tap weights, and a second stage wherein precoder weights obtained from a precoder control indicator channel information are used, provided the signal quality of the precoder control indicator channel is sufficiently reliable. The methods and apparatus also relate to procedures for responding to detection of an unreliable pre-coding control information (PCI) carried in a downlink feedback signal. | 2016-03-24 |
20160087697 | SIMPLIFIED MULTIPLE INPUT MULTIPLE OUTPUT (MIMO) COMMUNICATION SCHEMES FOR INTERCHIP AND INTRACHIP COMMUNICATIONS - Aspects disclosed in the detailed description include simplified multiple input multiple output (MIMO) communication schemes for interchip and intrachip communications. In exemplary aspects, MIMO techniques are applied to interchip and intrachip communication systems. In particular, a programmable control function is provided at an electrical signal source and supports a default MIMO communication scheme on a MIMO channel comprising possible communication paths among a plurality of transmitting and receiving endpoints. In addition, the programmable control function can opportunistically employ a simplified MIMO communication scheme when the MIMO channel is determined to be a tri-diagonal MIMO channel. The simplified MIMO communication scheme uses an Inverse Fast Fourier Transformation (IFFT) with reduced computational complexity. By employing the simplified MIMO communication scheme, interchip or intrachip communication may be supported with reduced implementation complexity, lower power consumption, and improved robustness. | 2016-03-24 |
20160087698 | IN-BAND FULL DUPLEX TRANSCEIVER AND IN-BAND FULL DUPLEX MULTI-INPUT MULTI-OUTPUT TRANSCEIVER - An in-band full duplex transceiver is provided. The in-band full duplex transceiver includes a distributor and a Finite Impulse Response (FIR) filter. The distributor may include a receiving output terminal that distributes a transmitting signal and a received signal and that outputs the received signal, and a first output terminal that outputs a first signal, which is a signal corresponding to the transmitting signal. The FIR filter may receive an input of a first signal and remove a self-transmitting interference signal that is included in a signal that is output from the receiving output terminal. | 2016-03-24 |
20160087699 | CHANNEL SOUNDING FOR IMPROVED SYSTEM PERFORMANCE - A transmitter generates and transmits a low rate signal to its intended receiver. Upon receiving the low rate signal, the intended receiver generates and transmits a channel sounding response (CSR), said CSR being a short burst having a predefined transmit format and carrying predetermined information. The transmitter then analyzes the CSR and determines uplink channel response, estimates downlink channel response, and determines appropriate transmit parameter settings based on the analysis and downlink response estimate. Adjustment of the transmit parameters can be made in either the MAC or PHY layer or in a combination of both. After adjusting its transmit parameters and modulating sub-carriers with user-data according to the determined transmit settings, the transmitter transmits the user-data to the receiver on a preferred portion of bandwidth. In a preferred embodiment, the transmitter also generates and transmits a transmit format control (TFC) signal containing the determined transmit parameter settings, including sub-carrier modulation information, to the receiver. | 2016-03-24 |
20160087700 | UPLINK MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT FOR WIRELESS LOCAL AREA NETWORK - A communication device of a client uplink group transmits an enhanced request to send (E-RTS) message to an access point of a wireless local area network, wherein the E-RTS message includes i) a length of a TXOP of the communication device and ii) an indication of a data unit size for an uplink MU-MIMO data unit to be transmitted by the communication device simultaneously with transmissions of other members of the client uplink group. The communication device receives a communication frame from the access point, the communication frame including a prompt to transmit an uplink MU-MIMO data unit having the indicated data unit size. The communication device generates the uplink MU-MIMO data unit having the indicated data unit size, and transmits, in response to the communication frame, the uplink MU-MIMO data unit to the access point during the TXOP simultaneously with transmissions of other members of the client uplink group. | 2016-03-24 |
20160087701 | Method for Transmitting 4-Antenna Precoding Matrix, User Equipment and Base Station - The present invention discloses a method for transmitting a 4-antenna precoding matrix, a user equipment, and a base station. The method includes determining a rank used for indicating the number of transmission layers, determining a first precoding matrix in a codebook set corresponding to the rank, determining a first PMI and a second PMI used for indicating the first precoding matrix, and sending the first PMI and the second PMI used for indicating the first precoding matrix to a base station. | 2016-03-24 |
20160087702 | APPARATUS AND METHOD FOR CANCELLING INTERFERENCE IN COMMUNICATION SYSTEM SUPPORTING MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT SCHEME - A method of canceling interference by a signal receiving apparatus in a communication system supporting a multi-user Multiple-Input Multiple-Output (MIMO) scheme and a signal receiving apparatus is provided. The method includes determining whether there is a need for using an interference cancellation scheme while performing a signal detecting operation; and performing the signal detecting operation using the interference cancellation scheme, or performing the signal detecting operation without using the interference cancellation scheme based on determining whether there is the need for using the interference cancellation scheme. | 2016-03-24 |
20160087703 | Method and Apparatus for Open Loop Transmission in a Multiple Antenna Wireless Communication System - The invention concerns a method for precoding in an open loop transmission communications system. The method includes precoding data at each of M REs with a precoding matrix, precoding each of DM-RSs with one column of a precoding matrix which is same as that used for precoding M data REs. The method is distinguished by using at least L≧2 different precoding matrices from a set of precoding matrices W to precode the M REs and the E allocated REs such that REs precoded with a first precoding matrix are interleaved with REs precoded with at least one additional, different precoding matrix and the number of used precoding matrices L is adapted to the transmission rank r and number N of available DM-RS. | 2016-03-24 |
20160087704 | Control Signaling in a Beamforming System - A method of control signaling in a beamforming system is proposed. A base station allocates a first sets of DL control resource blocks for DL transmission to a plurality of user equipments (UEs) in a beamforming network. Each set of DL control resource blocks is associated with a corresponding set of beamforming weights. The base station also allocates a second sets of UL control resource blocks for UL transmission from the UEs. Each set of UL control resource blocks is associated with the same corresponding set of beamforming weights. The base station transmits cell and beam identification information using a set of control beams. Each control beam comprises a set of DL control resource block, a set of UL control resource block, and the corresponding set of beamforming weights. | 2016-03-24 |
20160087705 | Control Signaling in a Beamforming System - A method of control signaling in a beamforming system is proposed. A user equipment (UE) receives control beam transmission from a base station using a set of control beams in a beamforming network. Each control beam comprises a set of DL control resource blocks, a set of UL control resource blocks, and an associated set of beamforming weights. The UE selects a control beam for establishing a connection with the base station. The UE then performs random access with the base station using the selected control beam. | 2016-03-24 |
20160087706 | Synchronization in a Beamforming System - A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. Pilot symbols are inserted into pilot structures and repeated for L times in each pilot structure. The L repetitions can be implemented by one or more Inverse Fast Fourier Transfers (IFFTs) with corresponding one or more cyclic prefix (CP) lengths. | 2016-03-24 |
20160087707 | Synchronization in a Beamforming System - A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A detector at the receiving device detects the presence of control beams, synchronizes to the transmission and estimates the channel response by receiving pilot signals. The detector has low complexity when exploiting the structure of the pilot signals. The detector consists of three stages that break down the synchronization procedure into less complicated steps. The detector accurately estimates the parameters required for identifying the transmit device and performing subsequent data communication. | 2016-03-24 |
20160087708 | METHOD FOR REPORTING CHANNEL STATE INFORMATION FOR THREE DIMENSIONAL BEAMFORMING IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME - Discloses is a method in which a user equipment (UE) reports channel state information to an evolved Node B (eNB) for beamforming based on multiple antennas in a wireless communication system. Specifically, the method comprises the steps of: receiving information on a plurality of reference signal resources from the eNB; generating channel state information containing information related to one preferred precoder to be applied to the plurality of reference signal resources in common and information related to one linking precoder for connecting the plurality of reference signal resources; and reporting the channel state information to the eNB, wherein the multiple antennas are partitioned into sections of row or column units and the plurality of reference signal resources correspond to the sections. | 2016-03-24 |
20160087709 | TRANSMISSION APPARATUS AND CONTROL SIGNAL MAPPING METHOD - Disclosed is a transmission apparatus which enables high transmission-rate communication by mapping DMRSs in a way adapted to the reception environment of each terminal. The transmission apparatus includes: reference signal configuration section ( | 2016-03-24 |
20160087710 | DIGITAL REPEATER HAVING BANDPASS FILTERING, ADAPTIVE PRE-EQUALIZATION AND SUPPRESSIN OF NATURAL OSCILLATION - A signal repeating system includes at least one input antenna that receives input signals, at least one output antenna that radiates output signals, and a signal path between the input and output antennas. The signal path includes circuitry for conditioning the input signals with down conversion circuitry that converts input signals to lower frequency signals and analog-to-digital conversion circuitry that converts the input signals to digital signals. A suppression circuit suppresses feedback and interference in the repeated output signals with a digital signal processor configured for receiving samples of the input signals, samples of the output signals, and samples of an interference reference signal and an adaptive filter under the control of the digital signal processor for generating echo cancellation signals and interference cancellation signals. | 2016-03-24 |
20160087711 | PROCEDE D'ALLOCATION DYNAMIQUE DE LA PUISSANCE INSTANTANEE DISPONIBLE D'UN SATELLITE ET SYSTEME ASSOCIE - A method and a system for dynamic allocation of power for a satellite access network comprises a step for acquisition of a signal representative of an instantaneous power available on board at least one satellite and of a signal representative of the data rate in each resource allocation manager for the satellite access network, a step for conversion, for each resource allocation manager, of the signal representative of the data rate in the resource allocation manager into a value corresponding to the power consumed on board the satellite in order to obtain this data rate, a step for calculating a total power margin equal to the difference between the power available on board the satellite and the sum of the powers consumed by each resource allocation manager, a power allocation step, the value of power allocated being a function of the calculated total power margin. | 2016-03-24 |
20160087712 | SYSTEM AND METHOD FOR PRE-DISTORTION AND ITERATIVE COMPENSATION FOR NONLINEAR DISTORTION IN SYSTEM EMPLOYING FTN SYMBOL TRANSMISSION RATES - A signal transmission approach comprises encoding a source signal (comprising source symbols) to generate a corresponding encoded signal. The encoded signal is modulated by mapping each source symbol to a respective signal constellation point of an applied signal constellation to generate a modulated signal. The modulated signal is pre-distorted based on a distortion estimate to generate a pre-distorted signal. The pre-distorted signal is filtered to generate a filtered signal. The filtered signal is frequency translated and amplified to generate a transmission signal for transmission via an uplink channel of a satellite communications system. To increase throughput, the source signal is processed through the apparatus and the resulting transmission signal is generated at a Faster-than-Nyquist (FTN) symbol rate and with a tight frequency roll-off. The modulated signal is pre-distorted based on a distortion estimate relating to the nonlinearity and the filters applied before and/or after the pre-distorter. | 2016-03-24 |
20160087713 | Methods and Apparatus for Providing Virtual Military Satellite Communication (MILSATCOM) Services Utilizing Shared Spectrum and Orbital Assignments - A virtual military satellite communication (Virtual MILSATCOM) network is described which supplements an existing military satellite communication (MILSATCOM) network in a manner consistent with existing Department of Defense funding issues, and a pricing model is provided to provide better pricing for expanding usage in the future. Co-location of Virtual MILSATCOM satellites and existing MILSATCOM satellites supports existing legacy users while providing more efficient usage of existing X-band frequencies. | 2016-03-24 |
20160087714 | FORWARD AND REVERSE CALIBRATION FOR GROUND-BASED BEAMFORMING - Methods and systems for calibrating the return and forward links of a satellite communication system are provided according to embodiments of the invention. The phase and/or amplitude variations caused by the return and forward links are calculated and/or estimated to aid in beamforming, such as ground-based beamforming. Calibration earth stations, distributed within one or more beam patterns, may be used to transmit calibration codes to the gateway to calibrate the return link. Return links variations may be estimated using a weighted minimum mean square algorithm at the gateway. Forward links may be calibrated with calibration codes transmitted from the gateway through a hybrid matrix to at least one calibration station. Forward calibration links may also calibrate for temperature-dependent signal variations such as diplexer variations at the satellite. | 2016-03-24 |
20160087715 | STRUCTURE OF FULL DUPLEX RADIO REGION APPLIED IN RADIO ACCESS SYSTEM SUPPORTING FULL DUPLEX RADIO SCHEME, AND METHOD AND APPARATUS FOR ALLOCATING SAME - The present invention relates to a structure of a full duplex radio (FDR) region in an FDR system. Further, the present invention provides a method and apparatuses for transmitting allocation information on a configured FDR region. In an embodiment of the present invention, a method of allocating an FDR region by a base station in a radio access system supporting an FDR scheme comprises the steps of: transmitting a control signal including FDR region allocation information to a terminal and performing FDR-based communication with the terminal through an FDR region indicated by the FDR region allocation information. At this time, the FDR region allocation information may contain one or more of first number information indicating a number of subcarriers included in the FDR region, position information indicating an allocation position of the FDR region, and second number information indicating a number of subcarriers included in a guard region used for reducing interference. | 2016-03-24 |
20160087716 | System and Method for Broadband Signal Disambiguation based on Sub-Sampled Analog Optical Links Employing Sample Rate Modulation - A system for measuring an RF input signal frequency includes a sampling optical pulse train with a frequency-dithered repetition-rate, and a sub-sampled analog link coupled to the optical pulse train whereby the RF input signal frequency is determined. This frequency dither imparts well-characterized modulation sidebands onto the input RF signal to be measured. By measuring the amplitude of these sidebands relative to the incoming aliased signal amplitude the frequency of the original signal is readily determined. The use of optical sampling dramatically increases the bandwidth over which the disambiguation technique is applied, and coarse disambiguation is achieved in a single acquisition. | 2016-03-24 |
20160087717 | OPTICAL NETWORKS - An optical network comprising an optical network element comprising a first optical transmitter, a first controller, an optical receiver, a second optical transmitter, a second controller and optical receiver apparatus. Said first controller is arranged to control said first optical transmitter to generate and transmit a first optical signal in response no second optical signal being detected. Said first controller is arranged to iteratively generate and transmit said first optical signal at different wavelengths of a plurality of wavelengths until said second optical signal is detected, and is further arranged to subsequently maintain generation and transmission of said first optical signal at said wavelength at which said second optical signal is detected. Said second controller is arranged to control said second optical transmitter to generate and transmit said second optical signal following detection of said first optical signal by said optical receiver apparatus. | 2016-03-24 |
20160087718 | SYSTEM AND METHOD FOR INTENSITY MONITORING - A detection system for monitoring the intensity of a stream of modulated pulses, the system comprising a controller configured to provide a control signal to a component outputting modulated pulses the control signal controlling the level of modulation for each pulse exiting the component and a detector configured to measure the intensity of the pulses in the stream of pulses exiting the component outputting modulated pulses, wherein the detector comprises a gated detector, the controller being configured to send a gating signal to said detector, wherein said gating signal varies the gain of the detector with the control signal, such that pulses with a selected modulation level can be detected. | 2016-03-24 |
20160087719 | RECEIVING CODED VISIBLE LIGHT IN PRESENCE OF INTERFERENCE - A coded visible light receiver comprises: a sensor, a transform module, and an interference cancelling module. The sensor receives light comprising data modulated into the light according to a coding scheme. The transform module is configured to transform the data into a frequency domain representation, representing a band of a spectrum resulting from the data being modulated into the light according to the coding scheme. The interference cancelling module is configured to cancel interference occurring in the band of the data, by determining one or more components in the band that exceed a threshold signal strength and cancelling those components. | 2016-03-24 |
20160087720 | RECOVERING TIMING FROM A SELF-CLOCKING CODED LIGHT SIGNAL - A coded light receiver comprising a sensor for receiving coded light, a filter, and a timing and data recovery module. The coded light comprises a signal whereby data and timing are modulated into the light according to a self-clocking coding scheme. The filter is arranged to match a template waveform of the coding scheme against the received signal, thereby generating a pattern of filtered waveforms each corresponding to a respective portion of the data, and the timing and data recovery module recovers the timing from the signal based on characteristic points of the filtered waveforms. The timing and data recovery module is configured to do this by separating the filtered waveforms into different sub-patterns in dependence on the data, and to recover the timing by processing each of the sub-patterns individually based on the characteristic points of each sub-pattern. | 2016-03-24 |
20160087721 | INFORMATION COMMUNICATION METHOD - An apparatus includes a processor and a recording medium having a program, the program causing the processor to execute operations. The operations include a normal mode and a visible light communication mode, wherein the normal mode and the visible light communication mode are switchable. In the normal mode, first image data is obtained by image capture with a first exposure time by sequentially starting exposure for a plurality of exposure lines in an image sensor each at a different time and each of the plurality of exposure lines partially overlaps in exposure time an adjacent exposure line. The visible light communication mode includes (i) setting a second exposure time of the image sensor, (ii) obtaining a bright line image including the plurality of bright lines, and (iii) obtaining information by demodulating data specified by a pattern of the plurality of bright lines included in the obtained bright line image. | 2016-03-24 |
20160087722 | ALIGNMENT OF OPTICAL DEVICES - Adjustment of an optica! component of a device comprises determining of at least one derivative of coupling efficiency of the optical component as a function of parameters used for control of a steering function of the optica! component. At least one oscillating component is induced into the parameters for the determining. The adjustment of the optical component is based on the determined at least one derivative. | 2016-03-24 |
20160087723 | METHOD, APPARATUS, AND COMMUNICATION NODE FOR SUPPRESSING OUTPUT NOISE OF PCIE DEVICES IN OPTICAL FIBER COMMUNICATION - A method, an apparatus, and a communication node for suppressing output noises of peripheral component interconnect express (PCIe) devices in optical fiber communication is provided. The communication node includes a PCIe chip and a detection and control circuit connected to a transmitting end of the PCIe chip. The PCIe chip transmits an electrical signal by a transmitter of a first lane. The detection and control circuit detects a differential-mode voltage of the electrical signal. If the differential-mode voltage is lower than a first threshold, the detection and control circuit controls an optical module connected to the PCIe chip not to transmit an optical signal through the first lane of the optical module. When a PCIe system includes the communication node, output noises of the transmitter is suppressed, and a normal optical fiber communication link is ensured. | 2016-03-24 |
20160087724 | OPTICAL COMMUNICATION DEVICE AND OPTICAL COMMUNICATION METHOD - An optical communication device and an optical communication method are provided. The optical communication device includes a laser source, an optical amplifier, and an optical signal generating chip. The laser source generates a laser beam. The optical amplifier is coupled to the laser source and amplifies light intensity of the laser beam in a specific wavelength band. The optical signal generating chip includes a micro-resonator and a modulation module. The micro-resonator is coupled to the optical amplifier and generates a multi-wavelength frequency comb according to the amplified laser beam. The modulation module is coupled to the micro-resonator and modulates a communication signal set to generate a plurality of optical modulated signals according to the multi-wavelength frequency comb. | 2016-03-24 |
20160087725 | FLEXIBLE HEAD-END CHASSIS SUPPORTING AUTOMATIC IDENTIFICATION AND INTERCONNECTION OF RADIO INTERFACE MODULES AND OPTICAL INTERFACE MODULES IN AN OPTICAL FIBER-BASED DISTRIBUTED ANTENNA SYSTEM (DAS) - Flexible head-end chassis supporting automatic identification and interconnection of radio interface modules (RIMs) and optical interface modules (OIMs) in an optical fiber-based distributed antenna system (DAS) are disclosed. In one embodiment, the flexible head-end chassis includes a plurality of module slots each configured to receive either a RIM or an OIM. A chassis control system identifies an inserted RIM or OIM to determine the type of module inserted. Based on the identification of the inserted RIM or OIM, the chassis control system interconnects the inserted RIM or OIM to related combiners and splitters in head-end equipment for the RIM or OIM to receive downlink communication signals and uplink communications signals for processing and distribution in the optical fiber-based DAS. In this manner, the optical fiber-based DAS can easily be configured or reconfigured with different combinations of RIMs and OIMs to support the desired communications services and/or number of remote units. | 2016-03-24 |
20160087726 | FREE SPACE FIBER-OPTIC CONNECTOR - This disclosure provides systems, methods and apparatus of establishing a free-space communication link through a medium. The medium can be an occluded environment with increased absorption and/or scattering effects. The free-space communication link includes a transmitter configured to transmit an optical signal at a wavelength suitable for transmission through the medium without suffering excessive optical losses due to absorption and/or scattering effects. The free-space communication link includes a receiver configured to receive the transmitted optical signal. The transmitter-receiver pair is configured to efficiently transmit optical signals at the suitable wavelength over a distance between about 1 mm and about 50 m. The transmitter and the receiver can be configured as portions of a fiber-optic connector assembly that can be used to connect two fiber-optic cables in an occluded environment. | 2016-03-24 |
20160087727 | Optical Modulator Driver Circuit and Optical Transmitter - An optical modulator driver circuit ( | 2016-03-24 |
20160087728 | Method And System For A Narrowband, Non-Linear Optoelectronic Receiver - Methods and systems for a narrowband, non-linear optoelectronic receiver are disclosed and may include amplifying a received signal, limiting a bandwidth of the received signal, and restoring the signal utilizing a level restorer, which may include a non-return to zero (NRZ) level restorer comprising two parallel inverters, with one being a feedback path for the other. The inverters may be single-ended or differential. A photogenerated signal may be amplified in the receiver utilizing a transimpedance amplifier and programmable gain amplifiers (PGAs). A received electrical signal may be amplified via PGAs. The bandwidth of the received signal may be limited utilizing one or more of: a low pass filter, a bandpass filter, a high pass filter, a differentiator, or a series capacitance on the chip. The signal may be received from a photodiode integrated on the chip, where the photodiode may be AC coupled to an amplifier for the amplifying. | 2016-03-24 |
20160087729 | PHOTOCOUPLER WITH PROTRUSION - A photocoupler comprises an input side lead frame; an output side lead frame disposed facing the input side lead frame with a gap therebetween; a light emitting device mounted on a face of the input side lead frame facing the output side lead frame side; a light receiving device mounted on a face of the output side lead frame facing the input side lead frame side, opposite to and having a gap with the light emitting device; and a protrusion disposed on at least a part of an area around the light receiving device on the output side lead frame and being formed of conductive bonding wire or a bump, protruding to the input side lead frame side. | 2016-03-24 |
20160087730 | System and Associated Methodology for Detecting Same Room Presence Using Ultrasound as an Out-of-Band Channel - A telecommunications device includes an electronic memory to store at least a network address and a random number code, and a sound unit to transmit the network address and the random number code via ultrasonic sound waves. The telecommunications device also includes a network interface to communicate via a data network using the network address and a processor to establish a communication session with another device over the data network based upon receipt of a response from the other device via the data network, the response including at least the random number code. The telecommunications device does not establish the communication session with the other device if the random number code is missing from the response or if the random number code in the response does not match the random number code transmitted in the ultrasonic sound waves. | 2016-03-24 |
20160087731 | SYSTEM AND METHODS FOR INTERFERENCE AVOIDANSE FOR LONG RANGE WIRELESS MARINE COMMUNICATION - The present invention generally relates to systems and methods for improving the quality of communication between a ground station and the ship by avoiding destructive interference between direct and reflected signal paths and thus offering enhancement in the quality of long range marine wireless communication. | 2016-03-24 |
20160087732 | ADJUSTING APPLICATION PARAMETERS FOR INTERFERENCE MITIGATION - Aspects of adjusting application parameters for interference mitigation are disclosed. In one aspect, a computing device is provided that employs a control system configured to detect and mitigate electromagnetic interference (EMI) generated within the computing device. More specifically, the control system is configured to detect possible EMI conditions and adjust parameters within the computing device to mitigate such EMI. In this manner, the computing device includes an aggressor application and a victim receiver. The control system is configured to analyze performance tradeoffs based on an acceptable performance level of the aggressor application and the performance degradation experienced by the victim receiver. Based on such analysis, the control system is configured to adjust parameters associated with the aggressor application to mitigate the EMI. Thus, the control system provides designers with an additional tool that may reduce the performance degradation of the victim receiver attributable to the EMI. | 2016-03-24 |
20160087733 | COMMUNICATION CHANNEL CALIBRATION USING FEEDBACK - A method for calibrating a communication channel coupling first and second components includes transmitting a data signal from the first component to the second component on the communication channel, and sensing a characteristic, such as phase, of the data signal on the second component. Information about the sensed characteristic is fed back to the first component using an auxiliary channel. An adjustable parameter, such as phase, for the transmitter is adjusted on the first component in response to the information. Also, a characteristic of a data signal received from the transmitter on the second component is sensed and used to adjust an adjustable parameter for the receiver on the first component. | 2016-03-24 |
20160087734 | RF RECEIVER WITH TESTING CAPABILITY - An RF receiver device includes a semiconductor chip in a chip package, and a test signal generator integrated in the chip. The test signal generator generates an RF test signal including first information. An RF receiver circuit integrated in the chip receives an RF input signal, down-converts the RF input signal into an intermediate frequency (IF) or base band, and digitizes the down-converted signal to obtain a digital signal. An RF receive channel includes a coupler having first and second input ports and an output port. The output port is coupled to the input of the RF receiver circuit, the first input port receives an antenna signal and the second input port receives the test signal from the test signal generator. A signal processor is integrated in the chip and determines, during a test cycle, whether the first information in the digital signal matches a predetermined criterion. | 2016-03-24 |
20160087735 | IDENTIFICATION OF CHANGED BROADCAST MEDIA ITEMS - Small changes in a broadcast version of a base media item can be identified by performing a multi-level comparison of digital fingerprints. A fingerprint of a base media item is compared to a fingerprint of a media broadcast to determine whether a media item embedded in a broadcast is likely, to a first level of certainty, to be the base media item. A second, more stringent, match between the fingerprint of the base media item and loosely matched items can be used to identify potentially-altered versions of the base media item. Potentially-altered versions can be compared against each other, and resulting matches are flagged as altered base media items, which can be fingerprinted and tested against broadcast fingerprints in the same manner as the base media item. | 2016-03-24 |
20160087736 | TRANSMISSION METHOD, TRANSMISSION DEVICE, RECEPTION METHOD, AND RECEPTION DEVICE - A transmission method for transmitting an emergency warning signal, pertaining to one aspect of the present disclosure, includes: generating control information, the control information including a flag indicating either presence or absence of information related to a region and, when the flag indicates presence, information related to the region; acquiring information related to emergency warning content; and generating the emergency warning signal including the control information and the information related to the emergency warning content. Thus, emergency warning (early warning) information can be transmitted with greater precision. | 2016-03-24 |
20160087737 | A NETWORK RECEIVER FOR A NETWORK USING DISTRIBUTED CLOCK SYNCHRONIZATION AND A METHOD OF SAMPLING A SIGNAL RECEIVED FROM THE NETWORK - A network receiver receives from a network an input signal which is sampled by a data sampler of the network receiver at sampling moments. Sampling moments have a relative position in time within a period of time of a single bit. The network receiver further includes a clock bit comparator and a sampling moment adaptor. The clock bit comparator compares lengths of a first time period lapsed while receiving at least five consecutive bits of the signal and of an internal clock time interval representing the same number of bits as a number of bits of the first time period. The sampling moment adaptor adapts the relative position of the sampling moment in dependence of a result of the comparison of the lengths to reduce a difference between the lengths. | 2016-03-24 |
20160087738 | TIME SYNCHRONIZATION SLAVE APPARATUS CAPABLE OF ADJUSTING TIME SYNCHRONIZATION PERIOD, AND METHOD OF DETERMINING TIME SYNCHRONIZATION PERIOD - A time synchronization slave apparatus and a method of determining a time synchronization period are disclosed. In the apparatus, a time synchronization processing unit performs a time synchronization operation and determines an offset and a rate used to correct local time error based on a calculated time error, a timer corrects the local time based on the determined offset and rate, a time error estimation unit estimates a time error in the local time during a present time synchronization period, and generates excess error information regarding an excess point at which the estimated time error exceeds a threshold allowable time error range, a time synchronization period determination unit determines a subsequent time synchronization period based on the excess error information, and a synchronization period information transmission unit transmits synchronization period information regarding the subsequent time synchronization period to a time synchronization master apparatus. | 2016-03-24 |
20160087739 | OPTICAL COMMUNICATION CROSS-CONNECTION DEVICES AND SIGNAL PROCESSING METHOD THEREOF - Provided is an optical communication cross-connection device for exchanging an OTN signal through optical communications, including: a plurality of OTN signal processing units (OTNsp units) for asynchronously conducting OTN signal processing; and a space switch connected between the plurality of OTNsp units, for conducting bidirectional signal exchange for the OTN signal, in which a first and a second OTNsp units that conduct signal transmission among the plurality of OTNsp units subject the OTN signal to skew processing on one side and deskew processing corresponding to the skew processing on another side between the first and second OTNsp units or between a communicating end-side one of the first and second OTNsp units and a communicating end-side OTNsp unit of an optical communication cross-connection device of a communication counterpart destination for the optical communication cross-connection device, and share a clock for the signal transmission therebetween. | 2016-03-24 |
20160087740 | HALF-CYCLED ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING TRANSMISSION AND RECEPTION - An optical transmitter transmits an orthogonal frequency division multiplexing symbol in which only one-half of available subcarriers are modulated with data and the remaining subcarriers are suppressed by not modulating with data. The transmission is of duration equal to half the symbol period of the OFDM symbol, resulting in a half-cycle transmission. An optical receiver receives the half-cycle transmission OFDM symbol, regenerates the full time domain representation and recovers data modulated on the one-half of available subcarriers. The modulated subcarriers and the suppressed subcarriers alternate in the frequency domain. | 2016-03-24 |
20160087741 | EQUALIZER FOR JOINT-EQUALIZATION - An equalizer for equalizing a composite signal originating from a given number of simultaneous data streams able to be received over a communication channel, on a given number of antennas, at one or more radio units, in a wireless communication system. The equalizer performs matrix operations when the number of receiving antennas associated with the composite signal is lower than the number of antennas supported by the equalizer. The channel matrix and the signal and interference covariance matrices are manipulated. The antenna dimension is increased, padding is then added and the transmitted signal vector is finally determined based on the altered matrices. | 2016-03-24 |
20160087742 | Detecting Leakage of OFDM Signals from an HFC Network - Detection of OFDM signals leaking from an HFC network with CCAP architecture is presented. Leak detection includes creating signatures of the OFDM signals and using them in an adaptive coherent cross-correlation processing method. The signature is created at a server and then transmitted to a field leakage detector via a wireless network. The server constructs signatures based on modulation and other parameters of the OFDM signal. The detector adaptively selects valid signatures depending on the location of the detector. A cross-correlation receiver samples the OFDM leakage signal in synchronism with a GPS clock and an OFDM master clock at a CMTS. Capture of the OFDM leakage signal in the detector is synchronized with the symbol rate and timestamp of the OFMD signal to achieve time delay measurements of the leak signal at different locations of the detector. Then, the leak is located using known TDOA or network database methods. | 2016-03-24 |
20160087743 | DYNAMIC DIRECTIONAL SYNCHRONIZATION SIGNALS IN WIRELESS COMMUNICATIONS - Methods, systems, and devices are described for dynamic directional synchronization signal signals in a millimeter wave communication system. A base station may determine a narrowband signal component and a wideband signal component of a synchronization signal for millimeter wave communications. The base station may identify network characteristic(s) of the millimeter wave communication network and adjust parameter(s) of the narrowband signal and/or the wideband signal components of the synchronization signal. The parameters may include a transmission power split or ratio, a bandwidth, a tone selection, or combinations thereof. | 2016-03-24 |
20160087744 | DIRECTIONAL SYNCHRONIZATION SIGNALS IN WIRELESS COMMUNICATIONS - Methods, systems, and devices are described for directional synchronization signal signals in a millimeter wave communication system. A user equipment (UE) may receive a narrowband signal component of a synchronization signal for the millimeter wave communications. The narrowband signal component may include correlation information. The UE may use the correlation information to identify a wideband signal component of the synchronization signal for the millimeter wave communications. The UE may search frequencies associated with a first frequency location determined from the correlation information to identify and detect the wideband signal component of the synchronization signal. | 2016-03-24 |
20160087745 | SUPPORTING AN ADD-ON REMOTE UNIT (RU) IN AN OPTICAL FIBER-BASED DISTRIBUTED ANTENNA SYSTEM (DAS) OVER AN EXISTING OPTICAL FIBER COMMUNICATIONS MEDIUM USING WAVELENGTH DIVISION MULTIPLEXING (WDM) - Embodiments disclosed in the detailed description include supporting an add-on remote unit(s) (RU) in an optical fiber-based distributed antenna system (DAS) over existing optical fiber communication medium using wavelength division multiplexing (WDM). An existing DAS comprises at least one existing head end equipment (HEE) communicatively coupled to a plurality of existing RUs through an optical fiber communication medium. In aspects disclosed herein, an add-on RU is added to the existing DAS to support additional wireless communications. No new optical fibers are required to be deployed to support communications to the add-on RU in the DAS. Instead, the DAS is configured to support the add-on RU through the existing optical fiber communication medium using WDM. Thus, the add-on RU can be added to the existing DAS without adding new optical fibers, thus leading to reduced service disruptions and deployment costs. | 2016-03-24 |
20160087746 | TRANSMISSION SYSTEM AND TRANSMISSION METHOD - A transmission system includes: an acquisition section configured to acquire a free band between a target channel including a plurality of wavelength signals contiguous to one another and a channel adjacent to the target channel; and an adjustment section configured to adjust signal power of at least one of the plurality of wavelength signals in the target channel, based on a power adjustment amount for the wavelength signal, the power adjustment amount being provided for the free band acquired by the acquisition section. | 2016-03-24 |
20160087747 | DENSE WAVELENGTH DIVISION MULTIPLEXING AND SINGLE-WAVELENGTH TRANSMISSION SYSTEMS - A data transceiver module, data transmission system incorporating same and methods related thereto, which include optical transmitters configured to receive an information bearing signal and generate an optical signal having a wavelength different from wavelengths generated by others of the plurality of optical transmitters; optical receivers configured to receive an optical signal having a wavelength matching one of the plurality of optical transmitters and convert it to an information bearing electrical signal; and a four level pulse-amplitude-modulator (PAM4) chip generating a pulse-amplitude-modulated information bearing signal input to at least one optical transmitter of the plurality of optical transmitters and receiving the information bearing from at least one optical receiver of the plurality of optical receivers and converting it to an information signal using pulse amplitude demodulation. Alternative embodiments include coherent-detection-based optical coherent receiver and coherent transmitter. | 2016-03-24 |
20160087748 | USING NOISY WINDOW FOR UNCALIBRATED OPTICAL NETWORK UNIT ACTIVATION - A method of Noisy Window and associated management messages to support set splitting if activating ONUs with uncalibrated transmitter, offering a power grant for unmodulated upstream transmission, measuring the average received optical power in all upstream wavelength channels and providing downstream indication of the upstream activation in the optical communication network wavelength channel with abnormally high average received power. | 2016-03-24 |
20160087749 | Method and Communication Control Device for Establishing a Communication Channel in a Communication Network - The invention relates to a method for establishing a communication channel, preferably an embedded control channel, between a central network node and at least one network unit to be integrated in a communication network including the central network node and an arbitrary but limited number of network units. The central network node is adapted to create and output a wavelength-division multiplex (WDM) downstream signal including downstream channel signals to be transmitted to the network units and to receive a WDM upstream signal including upstream channel signals created by the network units. | 2016-03-24 |
20160087750 | METHOD AND APPARATUS FOR TRANSMITTING ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SIGNAL IN OPTICAL NETWORK - A method for transmitting an orthogonal frequency division multiplexing (OFDM) signal in an optical network and apparatus therefor are provided. The method includes: converting a media access control (MAC) frame into an OFDM frame that contains a physical (PHY) level preamble, using the MAC frame which is transmitted from a MAC layer in a passive optical network (PON) to a PHY layer in an OFDM-PON; and transmitting the generated OFDM frame. | 2016-03-24 |
20160087751 | Linear Dispersion Polarization-Time Codes and Equalization in Polarization Multiplexed Coherent Optical System - A method of optical communication comprising encoding four modulated symbols to generate four encoded symbols in two orthogonal polarizations and transmitting the four encoded symbols in two successive time slots. An optical communication apparatus comprising a processor configured to receive two sequences of digital symbols in a plurality of time slots, wherein the two sequences correspond to two components of two orthogonal polarizations, wherein one digital symbol per polarization is received in each of the plurality of time slots, divide each of the two sequences into a plurality of groups using a modulo operation of time, wherein each group comprises two digital symbols received in two consecutive time slots, and adaptively equalize the four digital symbols of the two consecutive time slots using a 4×4 matrix to generate four modulated symbols, wherein the 4×4 matrix comprises 16 tap-vectors. | 2016-03-24 |
20160087752 | METHOD AND APPARATUS FOR NOTIFYING CHANNEL QUALITY INDICATOR AND MODULATION AND CODING SCHEME - The method includes: learning, by a terminal, a first CQI index according to a first CQI table, and sending the first CQI index to a base station; receiving, by the base station, the first CQI index sent by the terminal device, determining a first MCS index according to the first CQI table, a first MCS table, and the received first CQI index, and sending the determined first MCS index to the terminal device; and receiving, by the terminal, the first MCS index sent by the base station, and determining a modulation order and a code block size according to the first MCS table and the received first MCS index, where the first CQI table includes an entry in which a modulation scheme is higher than 64QAM, and the first MCS table includes an entry in which a modulation scheme is higher than 64QAM. | 2016-03-24 |
20160087753 | TECHNOLOGIES FOR HIGH-SPEED PCS SUPPORTING FEC BLOCK SYNCHRONIZATION WITH ALIGNMENT MARKERS - Technologies for high-speed data transmission include a network port logic having one or more communication lanes coupled to a forward error correction (FEC) sublayer and a physical coding sublayer (PCS). To transmit data, the PCS encodes the data to be transmitted into encoded data blocks using a 66b/64b line code and inserts alignment marker blocks after every 16,383 encoded data blocks. The FEC encodes the encoded data blocks into 80-block FEC codewords starting at a predefined offset from an alignment marker. Thus, each alignment marker is at one of five predefined offsets from the beginning of an FEC codeword. Each alignment marker may include a unique block type field usable with FEC encoding. The PCS may include one or more logical lanes, each operating at 25 Gb/s. Embodiments of the network port logic may include a single PCS lane or sixteen PCS lanes. Other embodiments are described and claimed. | 2016-03-24 |
20160087754 | PACKET HEADER PROTECTION FOR UTILITY NETWORKS - A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature. | 2016-03-24 |
20160087755 | METHODS AND APPARATUS EMPLOYING FEC CODES WITH PERMANENT INACTIVATION OF SYMBOLS FOR ENCODING AND DECODING PROCESSES - Encoding of a plurality of encoded symbols is provided wherein an encoded symbol is generated from a combination of a first symbol generated from a first set of intermediate symbols and a second symbol generated from a second set of intermediate symbols, each set having at least one different coding parameter, wherein the intermediate symbols are generated based on the set of source symbols. A method of decoding data is also provided, wherein a set of intermediate symbols is decoded from a set of received encoded symbols, the intermediate symbols organized into a first and second sets of symbols for decoding, wherein intermediate symbols in the second set are permanently inactivated for the purpose of scheduling the decoding process to recover the intermediate symbols from the encoded symbols, wherein at least some of the source symbols are recovered from the decoded set of intermediate symbols. | 2016-03-24 |
20160087756 | APPARATUS, SYSTEM, AND METHOD FOR PROVIDING ENERGY MANAGEMENT, PROFILES, AND MESSAGE BLOCKS IN A CABLE SERVICE ENVIRONMENT - A method is provided in one example and includes creating a plurality of profiles that describe one or more downstream modulations for each data-subcarrier in a channel to be used by a plurality of cable modems; receiving at least one testing measurement from the plurality of cable modems; and assigning a selected one of the plurality of profiles to each of the plurality of cable modems based, at least in part, on the one testing measurement that was received. | 2016-03-24 |
20160087757 | Method and Apparatus for Quantizing Soft Information Using Non-Linear LLR Quantization - A process capable of employing compression and decompression mechanism to receive and decode soft information is disclosed. Upon receiving a set of signals representing a logic value from a transmitter via a physical communication channel, the set of signals is demodulated in accordance with a soft decoding scheme and subsequently, a Log Likelihood Ratio (“LLR”) value representing the logic value is generated. After generating a quantized LLR value in response to the LLR value via a non-linear LLR quantizer, the quantized LLR value representing the compressed logic value is stored in a local storage. | 2016-03-24 |
20160087758 | Method and Apparatus for Quantizing Soft Information Using Linear Quantization - A process capable of employing compression and decompression mechanism to receive and decode soft information is disclosed. The process, in one aspect, is able to receive a data stream formatted with soft information from a communication network such as a wireless network. After identifying a set of bits representing a first logic value from a portion of the data stream in accordance with a predefined soft encoding scheme, the set of bits is compressed into a compressed set of bits. The compressed set of bits which represents the first logic value is subsequently stored in a local memory. | 2016-03-24 |
20160087759 | TUPLE RECOVERY - A technique for recovering tuples can include sending or receiving a request to reseed a tuple. | 2016-03-24 |
20160087760 | METHOD AND APPARATUS FOR STABLE SIGNAL DEMODULATION IN COMMUNICATION SYSTEM - A method and apparatus provide for stable signal demodulation in a communication system. The method and apparatus includes including detecting an erroneous demodulation value based on backward-demodulation of received signals, using a difference between a received signal to be demodulated and a preceding signal of the received signals and correcting the error demodulation value. Alternatively, backward-demodulation is used to confirm received signals. | 2016-03-24 |
20160087761 | METHOD FOR TRANSMITTING HARQ INFORMATION, BASE STATION, TERMINAL AND SYSTEM - Disclosed are a method and a device for transmitting HARQ information, relating to the technical field of wireless communications. The method includes that: a base station receives uplink data of a user equipment (UE), and obtains hybrid automatic repeat request (HARQ) information of the uplink data; by using the HARQ information and related information used for transmitting downlink control information, a control channel resource position corresponding to the HARQ information is determined; and by using the control channel resources indicated by the control channel resource position, the downlink control information is transmitted to the UE so that the UE acquires the HARQ information. | 2016-03-24 |
20160087762 | Methods and Apparatuses for Signaling in Dynamic Time Division Duplex Systems - The present invention relates to a method in a UE served by a network node, a method in the network node, the UE, and the network node. The network node is applying dynamic TDD with flexible subframes. The method comprises receiving ( | 2016-03-24 |
20160087763 | DATA TRANSMISSION APPARATUS AND METHOD FOR TRANSMITTING DATA IN DELAY-INSENSITIVE DATA TRANSMISSION METHOD SUPPORTING HANDSHAKE PROTOCOL - Provided are a data transmission apparatus and method for transmitting data in a Delay-Insensitive (DI) data transmission method supporting a handshake protocol. The data transmission apparatus includes a sender which outputs a binary-valued logic signal based on binary-valued logic, and an encoder which encodes the binary-valued logic signal input through input wires into a multi-valued logic signal based on multi-valued logic and transmits the encoded multi-valued logic signal to a decoder through output wires. Here, the encoder includes a mapping table which stores input variables including the number of input wires and the number of output wires smaller than the number of input wires and the multi-valued logic signal corresponding to the input variables, and encodes the binary-valued logic signal into the multi-valued logic signal with reference to the mapping table. | 2016-03-24 |
20160087764 | TRANSMITTER AND RECEIVER CIRCUIT, INTEGRATED CIRCUIT, AND TESTING METHOD - A transmitter and receiver circuit includes a phase interpolator that generates a process clock having a phase based on a reference clock, a first selector that selects a first clock so that the first clock is the process clock in a first mode and is the reference clock in a second mode, a deserializer that converts a serial input data into a parallel output data in accordance with the first clock and outputs the parallel output data, a second selector that selects a second clock so that the second clock is the reference clock in the first mode and is the process clock in the second mode, and a serializer that converts a second parallel input data into a serial output data according to the second clock and outputs the serial output data. | 2016-03-24 |