32nd week of 2015 patent applcation highlights part 63 |
Patent application number | Title | Published |
20150222314 | Housing Assembly - A method including bending an electronic apparatus housing member, where the housing member is a substantially rigid one-piece member, where the bending comprises a bending jig bending the housing member from a first shape to a second shape, where the bending elastically bends the housing member to form an electronic component path of insertion into the housing member through a front aperture of the housing member, where a shape of the front aperture is changed by the bending; inserting an electronic component assembly as a singular module into the housing member through the path; and allowing the housing member to resiliently deflect back to the first shape, where the housing member substantially closes the path. | 2015-08-06 |
20150222315 | CASES FOR MOBILE ELECTRONIC DEVICES CONFIGURED TO RECEIVE AUXILIARY OPTICAL DEVICES - Examples of cases and other accessories for mobile electronic devices are provided. Some cases are provided to protect mobile electronic devices from unintended forceful contact that could otherwise cause damage to the mobile electronic devices and/or to protect the mobile electronic devices against unwanted and potentially damaging ingress of harmful materials, such as water, dust, dirt, and/other potentially damaging materials. Some cases can include an attachment region that is configured to receive an auxiliary component to be used and/or attached with the mobile electronic device, such as an auxiliary lens or other optical device that can be used and/or attached with an onboard camera of the mobile electronic device. | 2015-08-06 |
20150222316 | DUAL ANTENNA TOPOLOGY FOR BLUETOOTH AND IEEE 802.11 WIRELESS LOCAL AREA NETWORK DEVICES - A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal. | 2015-08-06 |
20150222317 | SWITCHING DEVICE, A COMMUNICATION DEVICE, AND A METHOD FOR PROCESSING A CARRIER - According to various embodiments, a switching device may include: an antenna terminal; a switch including a first switch terminal and a second switch terminal, the first switch terminal coupled to the antenna terminal, the switch including at least one transistor at least one of over or in a silicon region including an oxygen impurity concentration of smaller than about 3×10 | 2015-08-06 |
20150222318 | Transmit-Receive Front End - The present invention discloses a transmit-receive (TR) front end. The TR front end comprises a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled to the transformer at a first end and coupled to the LNA at a second end, wherein the second end is capable of being coupled to an antenna; wherein the LNA is single ended and there is no transformer between the LNA and the TR switch. | 2015-08-06 |
20150222319 | QUADRATURE CURRENT-COMBINING LINEARIZING CIRCUIT FOR GENERATING ARBITRARY PHASE AND AMPLITUDE - A device includes a first circuit path coupled to a first node and a second node, the first circuit path having at least one first varactor circuit configured to receive a first tuning voltage, the first circuit path having a resistor with a selectable value, and a second circuit path coupled to the first node and the second node, the second circuit path having at least one second varactor circuit configured to receive a second tuning voltage, the second circuit path having a capacitor with a selectable value. | 2015-08-06 |
20150222320 | TRANSMISSION/RECEPTION DEVICE - A transmission filter allows a signal in the frequency band of a transmission signal to pass through the transmission filter and blocks signals in other frequency bands. The transmission signal output from the transmission filter is supplied to an antenna via an antenna sharing device and transmitted to the outside. A reflected-signal detector senses the amplitude and the phase of a reflected signal from the antenna and outputs detection signals (DA and DP). A control circuit adjusts control signals (CA and CP) on the basis of the detection signals (DA and DP). A cancellation-signal-output circuit adjusts a cancellation signal in such a manner that the cancellation signal has a phase opposite to that of the reflected signal and an amplitude the same as that of the reflected signal by using the control signals (CA and CP). A multiplexer combines the cancellation signal with a received signal including a noise signal. | 2015-08-06 |
20150222321 | Transceiver Front-End - A transceiver front-end of a communication device is disclosed. The transceiver front-end is connectable to a signal transmission and reception arrangement adapted to transmit a transmit signal having a transmit frequency and to receive a receive signal having a receive frequency, to a transmitter adapted to produce the transmit signal, and to a receiver adapted to process the receive signal. The transceiver front-end comprises at least one of a transmit frequency blocking arrangement and a receive frequency blocking arrangement. The transmit frequency blocking arrangement has a blocking frequency interval associated with the transmit frequency and a non-blocking frequency interval associated with the receive frequency, and is adapted to block passage of transmit frequency signals between the signal transmission and reception arrangement and the receiver. The receive frequency blocking arrangement has a blocking frequency interval associated with the receive frequency and a non-blocking frequency interval associated with the transmit frequency, and is adapted to block passage of receive frequency signals between the signal transmission and reception arrangement and the transmitter. At least one of the transmit frequency blocking arrangement and the receive frequency blocking arrangement comprises a network of passive components comprising at least one transformer and a frequency translated impedance adapted to have a higher impedance value in the blocking frequency interval than in the non-blocking frequency interval. | 2015-08-06 |
20150222322 | COMMUNICATION SYSTEM WITH NARROWBAND INTERFERENCE MITIGATION AND RELATED METHODS - A communications device may include a wireless receiver, and a processor coupled to the wireless receiver. The processor may be configured to receive a spread OFDM signal having narrowband interference associated with the same, the spread OFDM signal having subcarriers with data distributed among the subcarriers. The processor may be configured to excise the narrowband interference from the spread OFDM signal, and despread the spread OFDM signal after excising and based upon the excising to recover the data. | 2015-08-06 |
20150222323 | LOW-POWER CIRCUIT AND IMPLEMENTATION FOR DESPREADING ON A CONFIGURABLE PROCESSOR DATAPATH - Systems and methods for despreading a received signal are described herein. In one embodiment, a vector processor comprises a plurality of code generators, wherein each code generator is configured to generate a different code corresponding to a different code hypothesis. The vector processor also comprises a plurality of despread blocks coupled to a common input for receiving samples of a signal, wherein each despread block is configured to despread at least a portion of the samples with a different one of the codes to generate respective despreaded samples and to accumulate the respective despreaded samples over a length of the code. | 2015-08-06 |
20150222324 | GENERATING PSEUDO-RANDOM FREQUENCY SIGNALS - A system configured to generate a signal with a random or pseudo-random frequency may include an oscillator and a signal generator. The oscillator may be configured to generate an oscillator signal. A frequency and a phase of the oscillator signal may be random or pseudo-random and may be based on a value of a received control signal. The signal generator may be configured to generate the control signal based on the oscillator signal and a seed state. The value of the control signal may be random or pseudo-random. | 2015-08-06 |
20150222325 | METHODS FOR TRANSMITTING AND RECEIVING DATA IN A DIGITAL TELECOMMUNICATIONS SYSTEM - A method for transmitting data via a terminal to a station of a digital telecommunications system. A first stream of data is encoded in data packets and a second stream of data is encoded in a frequency-hopping pattern. The data packets, in which the first stream of data is encoded, is consecutively transmitted in respective frequency bands of a frequency resource. The frequency bands are determined based on the frequency-hopping pattern in which the second stream of data is encoded. | 2015-08-06 |
20150222326 | SYSTEMS, METHODS, AND APPARATUSES FOR IMPLEMENTING A DSL SYSTEM - An apparatus comprises at least one vectoring engine and a cross-connect coupled to the vectoring engine. The cross-connect is to couple with each of a plurality of customer premises equipment (CPE) devices via a respective DSL loop. An interface is to receive instructions for the cross-connect to couple the vectoring engine to a nonoverlapping subset of the CPE devices via the respective DSL loops. The interface is further to receive instructions for the vectoring engine to apply vectoring to the DSL loop via which to couple one of the CPE devices to the cross-connect. | 2015-08-06 |
20150222327 | SCALED POWER LINE BASED NETWORK - A power line communication network includes a plurality of PLC devices. The PLC devices communicate packets over conductors of an electrical power distribution system via a plurality of non-interfering channels. Different ones of the PLC devices are configured to communicate packets via different ones of the non-interfering channels. | 2015-08-06 |
20150222328 | SCALED POWER LINE BASED NETWORK - A power line communication system includes a first power line communication device. The first device is configured to communicate via conductors of an electrical power distribution system. The first device has a transmitter power control system which is configured to determine transmission power needed to communicate with a second device of a power line communication network. The first device also configured to apply the determined transmission power to communicate with the second device. The determined transmission power is insufficient to communicate with a third device of the power line communication network, and the transmitter power control system is configured to determine transmission power needed to communicate with a third device. | 2015-08-06 |
20150222329 | ONE TOUCH PRODUCT INFORMATION ON MOBILE COMMUNICATION DEVICE USING NEAR FIELD COMMUNICATION - A one-touch application is launched by a user of a mobile communication device (MCD) selecting a single selector element on the MCD, and in response the MCD automatically and without further user interaction establishes near field communication (NFC) with an electronic product, receives identifying data from the electronic product over NFC, and uploads the identifying data wirelessly to a cloud server associated with a manufacturer of the electronic product. The server sends back to the MCD and/or to the electronic product information about the electronic product. | 2015-08-06 |
20150222330 | Method of and Receiver for Communication During Wireless Power Transmission - In a wireless power charger a receiver ( | 2015-08-06 |
20150222331 | ANTENNA SELECTION WITH EMBMS - A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines at least one signal metric and selects a number of antennas from among a set of antennas for receiving a multicast/broadcast signal based on the at least one signal metric. | 2015-08-06 |
20150222332 | Method of Cooperative Emission, Signal, Source Entity, Relay Entity, Method of Reception, Destination Entity, System and Computer Program Corresponding Thereto - A method is provided for transmitting an information sequence from a source entity to a recipient entity, via at least one relay entity. The method includes: transmitting, by said source entity, modulated symbols representative of said information sequence, obtained after modulation of said information sequence, on a first channel, called ‘source’ modulated symbols; and transmitting, by said at least one relay entity, modulated symbols representative of said information sequence, obtained after modulation of an estimation of said information sequence on a second channel, called ‘relay’ modulated symbols, said first and second channels being orthogonal between each other. The source entity and the at least one relay entity simultaneously send at least one of said ‘source’ modulated symbols and at least one of said ‘relay’ modulated symbols. | 2015-08-06 |
20150222333 | APPARATUS, SYSTEM AND METHOD OF BEAM SELECTION FOR BEAMFORMED DIVERSITY WIRELESS COMMUNICATION - Some demonstrative embodiments include devices, systems and/or methods of beam selection for beamformed communication. For example, an apparatus may include a controller to control a plurality of antenna subarrays to form a plurality of directional beams for communicating a beamformed diversity wireless transmission over a plurality of selected directional links, which are selected based on at least one predefined selection metric. | 2015-08-06 |
20150222334 | Monotonic Optimization Method for Achieving the Maximum Weighted Sum-Rate in Multicell Downlink MISO Systems - A monotonic optimization method is for achieving the maximum weighted sum-rate in multicell downlink MISO systems. It belongs to the wireless communications field. The weighted sum-rate maximization is viewed as a monotonic optimization problem over the achievable rate region. A sensible search scheme, a sequential partition method as well as a vertex relocation method are designed to reduce the complexity and accelerate the convergence. | 2015-08-06 |
20150222335 | METHOD, SYSTEM AND DEVICE FOR FEEDING BACK AND RECEIVING PMI - The embodiments of the disclosure relate to the technical field of wireless communications, and particularly relate to a method, a system and a device for feeding back and receiving a Pre-coding Matrix Indicator (PMI), which is used for feeding back a vertical dimension PMI. The method for feeding back the PMI provided by the embodiments of the disclosure comprises: confirming the PMI needed to be fed back, wherein the PMI comprises a horizontal dimension PMI and a vertical dimension PMI, or a PMI combined by horizontal dimension and vertical dimension ( | 2015-08-06 |
20150222336 | METHOD AND APPARATUS FOR INTERNAL RELATIVE TRANSCEIVER CALIBRATION - A method and apparatus is disclosed herein for internal relative transceiver calibration. In one embodiment, the method comprises generating a plurality of processed observations corresponding to pilots transmitted by transceiver units in the entity and observations of the pilots by transceiver units in the entity, each processed observation being indicative of a combined response of a pilot transmitted by transmitter hardware of one transceiver unit at the entity and an observation of the pilot by receiver hardware of another transceiver unit at the entity; grouping the plurality of processed observations into one or more observation pairs, where each observation pair of the one or more observation pairs comprises: a first observation indicative of a combined response between transmitter hardware of a first transceiver unit and receiver hardware of a second transceiver unit in the entity, and a second observation indicative of a combined response between transmitter hardware of the second transceiver unit and receiver hardware of the first transceiver unit in the entity; and calculating, based on at least one of observation pairs, relative calibration values, where each relative calibration value is associated with a transceiver of each transceiver unit and is relative with respect to a transceiver of a reference unit at the entity. | 2015-08-06 |
20150222337 | QUANTIZATION OF CHANNEL STATE INFORMATION IN MULTIPLE ANTENNA SYSTEMS - A method of transmission over multiple wireless channels in a multiple antenna system includes storing channel modulation matrices at a transmitter; receiving quantized channel state information at the transmitter from plural receivers; selecting a transmission modulation matrix using the quantized channel state information from the stored channel modulation matrices; and transmitting over the multiple channels to the plural receivers using the selected transmission modulation matrix. In another embodiment, the method includes storing, at one or more receivers, indexes of modulation matrices generated by a capacity enhancing algorithm; upon a selected one of the one or more receivers receiving a transmission from the transmitter, the selected receiver selecting a modulation matrix from the stored modulation matrices that optimizes transmission between the transmitter and the selected receiver, the selected receiver sending an index representing the selected modulation matrix; and receiving the index at the transmitter from the selected receiver. | 2015-08-06 |
20150222338 | SIGNAL TRANSMISSION METHOD, BASE STATION AND SYSTEM FOR MULTIPLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - The present invention provides a signal transmission method for a multiple-user multiple-input multiple-output system, includes: in a signal sending time slot, sending a signal to user terminals through each antenna via preset subcarriers in a signal sending time slot; sending a first public information signal to the user terminals through each antenna via the preset subcarriers in a public information sending time slot. According to the technical solution provided by the present invention, the problem that signal transmission delay of a multiple-user multiple-input multiple-output system where a channel changes rapidly is too long is solved. | 2015-08-06 |
20150222339 | METHOD AND APPARATUS FOR TRANSCEIVING DATA IN A MIMO SYSTEM - The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal. | 2015-08-06 |
20150222340 | RADIO COMMUNICATION METHOD, USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION SYSTEM - The present invention is designed so that it is possible to feed back channel state information (CSI) that is suitable for downlink communication in which 3D beams are used. The radio communication method of the present invention is a radio communication method to allow a radio base station to carry out downlink communication with a user terminal by using a 3D beam that is formed with a horizontal beam having directivity in a horizontal plane and a vertical beam having directivity in a vertical plane, and has the steps in which the radio base station transmits a plurality of measurement reference signals that are pre-coded using different precoding weights between a plurality of vertical beams, and the user terminal transmits channel state information that is generated based on the plurality of measurement reference signals, to the radio base station. | 2015-08-06 |
20150222341 | METHOD AND APPARATUS FOR EFFICIENT FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MULTIPLE ANTENNA - A method for transmitting channel status information (CSI) via uplink in a wireless communication system includes transmitting a first precoding matrix indicator (PMI) and a second PMI at a subframe. A subsampled codebook for each of a precoding codebook for Rank-1 and a precoding codebook for Rank-2 is determined based on at least the first PMI or the second PMI. In case of the Rank-1 or the Rank-2, a number of elements for the first PMI is 8. | 2015-08-06 |
20150222342 | SIGNAL TRANSMISSION METHOD, SYSTEM, AND DEVICE - The present invention provides a signal transmission method, system, and device, where the method includes: setting K virtual users, where each virtual user is associated with one base station; obtaining base station precode and user precode corresponding to each of the K virtual users; splitting a baseband signal to the K virtual users, and obtaining a split baseband signal corresponding to each of the K virtual users; processing, according to the base station precode and the user precode corresponding to each virtual user, the split baseband signal corresponding to each virtual user, and obtaining an uplink signal corresponding to each virtual user; and obtaining timing advances {t | 2015-08-06 |
20150222343 | FINDING CHANNEL STATE INFORMATION WITH REDUCED CODEBOOK IN A MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM - Multiple antennas employed at the transmitter and receiver can significantly increase a MIMO system capacity, especially when channel knowledge is available at the transmitter. Channel state information may be provided to the transmitter by the receiver in a codebook based precoding feedback. In a proposed approach is proposed in which the receiver conducts a search of precoder elements of a codebook to provide the transmitter with rank information and precoder control index that enhances capacity. Unlike the conventional exhaustive search, the proposed approach reduces complexity by reducing the search space of precoder elements for consideration. Performance loss is minimized by reducing the search space of higher rank precoder elements. For some ranks, the complexity is reduced without any performance sacrifice by grouping the precoder elements of the rank into groups of equivalent capacities and including at most one precoder element from each group into the search space. | 2015-08-06 |
20150222344 | Modulation Circuit for a Radio Device and A Method Thereof - The present disclosure relates to a modulation circuit and a method for suppressing energy content of spectral side lobes caused by high-frequency content present in a baseband signal, with the energy content of the spectral side lobes being outside an intended operational bandwidth in a modulated radio-frequency signal. An example circuit is configured to: receive a digital baseband signal, feed the digital baseband signal to a first and a second signal path, with the first signal path comprising a first mixer and the second signal path comprising a delay circuit and a second mixer. The first mixer and the second mixer may receive a same local oscillator signal, and may respectively provide a first radio-frequency signal and a second radio-frequency signal that are delayed with respect to each other. The example circuit is further configured to generate an output radio-frequency signal by combining the first and second radio-frequency signals. | 2015-08-06 |
20150222345 | Methods for Signaling and Using Beam Forming Quality Indicators - A method in a node is disclosed. The method comprises determining a beam forming quality indicator for the network node, the beam forming quality indicator indicating a beam forming performance gain from the network node having beam forming capability, wherein the beam forming quality indicator comprises at least or is a function of at least a reference signal quality and an achievable signal quality. The method further comprises performing one or more radio operations using the determined beam forming quality indicator. | 2015-08-06 |
20150222346 | MU-MIMO PROTOCOL EFFICIENCY - A method for improving multiple-user (MU) multiple-input-multiple-output (MIMO) protocol efficiency includes transmitting an MU frame to multiple devices. The MU frame is beamformed to enable a corresponding one of the devices to receive an intended stream at high power. The MU frame includes an additional sounding-field. Acknowledgement (ACK) responses are received from at least some of the plurality of devices. Each of the ACK responses includes a sounding response frame including a channel feedback. | 2015-08-06 |
20150222347 | Method for Configuring Channel State Information Reference Signal, Base Station, and Access Point - A method for configuring a channel state information reference signal includes dividing access points into a first access point set and a second access point set, configuring a first CSI-RS pilot pattern for a user equipment and allocating the pattern to the first access point set, configuring a second CSI-RS pilot pattern and allocating the pattern to the second access point set, and configuring a third CSI-RS pilot pattern and allocating the pattern to an antenna set formed by a first antenna of a first access point in the first access point set and a first antenna of a first access point in the second access point set; and sending non-zero power CSI-RS configuration information to the user equipment, so that the user equipment measures and reports first downlink channel state information, second downlink channel state information, and third downlink channel state information of the antenna set. | 2015-08-06 |
20150222348 | VARIABLE DIVERSITY RX BANDWIDTH FOR SELF-ORGANIZING NETWORKS - In a wireless communication system, a method for configuring multiple antennas of a receiver may include configuring a primary antenna of the multiple antennas with a narrow band filter passing a selected uplink channel, and configuring a secondary antenna of the multiple antennas with a broad band filter passing multiple uplink channels. The receiver may sense the power of the multiple uplink channels received via the secondary antenna for use in controlling downlink power. Broad band configuration of the secondary antenna may be intermittent, interspersed with a narrow band filter configuration for diversity reception. The receiver may determine which of the multiple antennas is primary by sensing which antenna is receiving the strongest signal on the selected uplink channel. Different levels of automatic gain control may be applied to signals from respective different ones of the multiple antennas. | 2015-08-06 |
20150222349 | WIRELESS RELAY - This invention provides a wireless relay which derives power for operation from voltages connected to inputs to the relay. The wireless relay has a radio receiver, a microcontroller, control terminals, and switched terminals. Optionally, the wireless relay may further comprise a transmitter. | 2015-08-06 |
20150222350 | Wirelessly Connecting An Aircraft At An Airport - Disclosed are ways for wirelessly connecting an aircraft at an airport. For example, a method for wirelessly communicating with an aircraft may include determining a proximity of an aircraft of a directional antenna system for wireless communication, determining availability of the directional antenna system for wireless communication with the aircraft, selecting the directional antenna system based on the determined proximity and availability, and providing instructions for the directional antenna system to communicate with the aircraft. | 2015-08-06 |
20150222351 | SATCOM DATA UNIT WITH WIRELESS DEVICE - An aerospace communication system comprises a communication management unit; a first communication device configured to transmit and receive data over a first communication network; and a second communication device configured to transmit and receive data over a second communication network. The first communication device is coupled to a corresponding interface of the communication management unit. The second communication device is communicatively separated from the communication management unit by the first communication device such that the communication management unit is unaware of the second communication device. The first communication device includes routing logic configured to determine whether to send each message received from the communication management unit over the first communication network or to the second communication device for transmission over the second communication network. | 2015-08-06 |
20150222352 | RADIO FREQUENCY IDENTIFICATION OVERLAY NETWORK FOR FIBER OPTIC COMMUNICATION SYSTEMS - In this invention, a radio frequency identification overlay network that automates the discovery and configuration management of all physical fiber optic connections within a distributed communications network is disclosed. Miniaturized, low crosstalk RFID tags at a first fiber optic receptacle location and miniature, distributed, multiplexed reader antenna at a distant, second fiber optic receptacle location are joined by a fiber optic link which transmits both optical data and RF electronic signals. This electronic-fiber optic interface is comprised of two separated, miniaturized resonant antenna in communication with another through a resonant RF transmission line integral to the fiber optic cable. This RFID overlay network is comprised of multiplexed RFID readers, RF resonant fiber optic cables, and miniaturized RFID tags attached to the connector receptacles of network elements. The RFID overlay network interrogates tags automatically and remotely through the RF transmissive and optically transmissive fiber optic patch cords. | 2015-08-06 |
20150222353 | SIGNAL MONITORING APPARATUS, SIGNAL TRANSMITTING/RECEIVING APPARATUS, AND COMMUNICATION APPARATUS - An object of the present invention is to provide a signal monitoring device, a signal transmission/reception device and a communication device, which realize easy acquisition of a diagnosis result and a signal value, and further realize fast acquisition of the diagnosis result. A signal monitoring device ( | 2015-08-06 |
20150222354 | Method, system, and device for detecting optical signal-to-noise ratio - A method for detecting an optical signal-to-noise ratio (OSNR). A wavelength label loading end ( | 2015-08-06 |
20150222355 | DISPLAY DEVICE - A display device according to the present disclosure includes: a backlight control unit configured to divide the luminescence surface of the backlight into a plurality of areas, and, based on the image signal, (i) perform luminescence control in each of the plurality of areas and (ii) set off periods starting at different times for the plurality of areas. The backlight control unit performs luminescence control in a visible light communication area which is at least one area among the plurality of areas in a period in which the visible light communication signal is output, based on the visible light communication signal, instead of performing luminescence control based on the image signal, and performs the luminescence control based on the image signal, in the visible light communication area, in a period in which the visible light communication signal is not output. | 2015-08-06 |
20150222356 | Space Division Multiplexing Apparatus Including Multi-Core Fiber And Selfhomodyne Detection Method - To provide a self-homodyne detection communication system capable of using a space-division multiplexing signal as a signal for communication. | 2015-08-06 |
20150222357 | APPARATUS AND METHOD FOR RETRIEVEING DATA FROM A WDM SIGNAL, TRANSMITTER AND METHOD FOR TRANSMITTING A WDM SIGNAL, AND WDM SYSTEM - An apparatus for retrieving data from an optical wavelength-division multiplexing (WDM) signal received via a WDM path in a wavelength-division multiplexing transmission system having a plurality of channels associated with different wavelengths includes a demultiplexer configured to split the optical WDM signal into a plurality of signals each associated with one of the channels, and a calculator configured to calculate data associated with a respective one of the channels based on the signal associated with the respective channel and taking information on determined crosstalk interferences of other channels to the respective channel into consideration. A transmitter for transmitting an optical WDM signal via a WDM path in a WDM transmission system having a plurality of channels associated with different wavelengths includes a predistorter configured to predistort data associated with a respective one of the channels by information on determined crosstalk interferences of other channels to the respective channel, and a signal source. | 2015-08-06 |
20150222358 | CABLE COMMUNICATION SYSTEM OPTICAL NODES HAVING SELECTABLE ATTENUATION VALUES TO MITIGATE DISTORTION OF UPSTREAM INFORMATION - An HFC cable communication system comprising: a CMTS having a first attenuator to attenuate one or more upstream signals applied to the CMTS; an optical link having a dynamic range and comprising an optical receiver having a second attenuator to attenuate the upstream signal(s) and an optical transmitter having a third attenuator to attenuate the upstream signal(s); a coaxial RF link comprising one or more RF amplifiers having a fourth attenuator to attenuate the upstream signal(s); and one or more subscriber modems to generate the upstream signal(s) at respective transmit RF signal levels. The CMTS implements a long loop ALC to set the transmit RF signal level(s) based on received RF signal levels of the upstream signal(s) at the CMTS. Respective values for the first, second, third and fourth attenuators are selected based on the dynamic range of the optical link so as to facilitate implementation of the long loop ALC and effective transmission of upstream information carried by the upstream signal(s). | 2015-08-06 |
20150222359 | MULTILEVEL INTENSITY MODULATION AND DEMODULATION SYSTEM AND METHOD - A multilevel-intensity modulation and demodulation system includes: a digital-to-analog conversion unit to convert an output level value of a digital signal into an analog signal; a multilevel-intensity-modulated light transmission unit to transmit an optical signal multilevel-intensity modulated based on the analog signal; a multilevel-intensity-modulated light reception unit to receive the optical signal multilevel-intensity modulated, and convert the received optical signal into an analog reception electrical signal; an analog-to-digital conversion unit to convert the analog reception electrical signal into a reception level value; and a controller to convert a transmission multiple gradation level being one of a plurality of multiple gradation levels of multilevel-intensity modulation to which the digital signal is mapped, into the output level value so as to cause the reception level value to be in a desired reception state, and to receive a digital signal corresponding to a reception multiple-gradation-level determined from the reception level value. | 2015-08-06 |
20150222360 | DIGITAL OPTICAL SPECTRAL SHAPING - A method and system for generating an optical channel signal for transmission through an optical fiber link of an optical communications system. A digital filter processes an input data signal using a compensation function and a shaping function to generate a pair of multi-bit sample streams representing a target optical E-field envelope of the optical channel signal. A modulator modulates an optical carrier light using the pair of multi-bit sample streams to generate the optical channel signal. The compensation function is designed to at least partially compensate impairments of the optical fiber link. The predetermined shaping function is designed to modify a baseband spectrum of the target optical E-field envelope. | 2015-08-06 |
20150222361 | DUAL-MODE NETWORK - Aspects of the present disclosure are directed toward apparatuses, systems, and methods that include a first gateway circuit in an optical access network connecting a plurality of end-of-network users to a central node, the first gateway circuit connecting one of the plurality of end-of-network users to the central node via fiber optic data lines. Further, the first gateway circuit is configured and arranged to: relay a first set of data between the end-of-network user and the central node using a packet-switching communication protocol, and relay a second set of data between the end-of-network user and the central node using an optical flow switching communication protocol. | 2015-08-06 |
20150222362 | Non-contact connector - A non-contact connector is the solving means that a plurality of new light sources discretely distributed over a circumferential direction are generated from one light source on a rotator, and the lining is performed as the new light source with the characteristic which are not in an original light source. At the time of rotation of the light source, at least one in two or more new light sources maintain connection with an external output terminal and switch the remaining new light sources, so an always-on connection state is secured and the hit of the time-axis of the line signal at the time of an optical path change is avoided. | 2015-08-06 |
20150222363 | COMMUNICATION MODULE HAVING A ROTATABLE CONNECTOR ASSEMBLY FOR MULTIPLE CONNECTION ORIENTATIONS - An optical communication module include a housing having a circuit element configured to provide an optical communication function, and a rotatable connector assembly coupled to the housing, the rotatable connector assembly configured to rotate between a first position and a second position, wherein when in the first position, the rotatable connector assembly allows the communication module to interface with a first form factor card cage and when in the second position, the rotatable connector assembly allows the communication module to interface with a second form factor card cage. | 2015-08-06 |
20150222364 | SEMICONDUCTOR PACKAGES WITH OPTICAL TRANSCEIVERS - A semiconductor package includes a package substrate, a first semiconductor substrate and a second semiconductor substrate stacked on the package substrate, and an optical transceiver that generates and receives an optical signal travelling between the package substrate and the second semiconductor substrate using an infrared (IR) ray that passes through the first semiconductor substrate. | 2015-08-06 |
20150222365 | OPTICAL TRANSMITTER AND BIAS VOLTAGE CONTROL METHOD - An optical transmitter includes: optical modulation means; bias voltage output means for supplying the optical modulation means with a bias voltage on which a pilot signal is superimposed; pilot signal receiving means; and bias voltage control means. The bias voltage control means includes: training means for determining a control start voltage and a control direction of the bias voltage based on a pilot signal component at first and second bias voltage values; and feedback means for determining an appropriate bias voltage to compensate for a deviation of an operating point of the optical modulation means by analyzing the pilot signal component while adjusting the bias voltage in a stepwise fashion along the control direction from the control start voltage after the control start voltage and the control direction are determined. | 2015-08-06 |
20150222366 | EFFICIENT PULSE AMPLITUDE MODULATION INTEGRATED CIRCUIT ARCHITECTURE AND PARTITION - A transmitter is disclosed as being configured to encode optical signals in accordance with a multi-level coding scheme. The transmitter includes an Integrated Circuit architecture and partition that relaxes the bandwidth and linearity constraints of a gearbox-to-laser driver interface. In the proposed architecture, the gearbox Integrated Circuit aligns two or more digital data streams and transmits the aligned two or more data streams to the laser driver via separate signals. | 2015-08-06 |
20150222367 | Analog Phase Noise Compensation for Coherent Optical Communication - The invention relates to a noise compensation system, configured for compensating phase noise in coherent optical communications, and to a method for compensating phase noise. The noise compensation system comprises a transmitter ( | 2015-08-06 |
20150222368 | METHODS AND APPARATUS FOR COHERENT DUOBINARY SHAPED PM-QPSK SIGNAL PROCESSING - Systems, devices and techniques for receiving a signal comprising a quadrature duobinary modulated signal include performing channel equalization of the received signal using a constant multi-modulus to obtain a set of channel estimation coefficients and a stream of symbols, partitioning, based on modulus, the stream of symbols into three partitions, estimating carrier frequency based on the partitioned stream of symbols, recovering a phase of the signal using a maximum likelihood algorithm, and decoding the partitioned stream of symbols to recover data. | 2015-08-06 |
20150222369 | ELECTRO-OPTICAL IMPLEMENTATION OF AN OPTICAL SPECTRUM INVERTER - The invention relates to an optical spectrum inverter, configured for counteracting phase distortion effects in an optical channel over a predefined frequency range, to an inverter node, configured for duplex operation in at least two wavelength channels, and to a method for counteracting phase distortion effects in an optical channel. The optical spectrum inverter comprises an optical receiver comprising a polarization diversity unit configured for polarization resolved detection, wherein the optical receiver is configured for receiving an optical input signal comprising a first wavelength span and for converting the optical input signal to an electrical signal, and an optical modulator connectable to the optical receiver and configured for modulating the electrical signal onto an optical signal, wherein the optical modulator comprises an optical filter which is configured for selecting a second wavelength span of the optical signal corresponding to an optical output side band of an inverted spectrum of the optical channel such that phase distortion effects are counteracted at least partly over the predefined frequency range. In this way, an optical spectrum inverter is provided which is simple and cost-effective to realize and allows higher optical power levels in conjunction with a higher capacity per optical channel and is also adapted for longer transmission distances. | 2015-08-06 |
20150222370 | POSITIONAL INFORMATION TRANSMISSION SYSTEM, POSITIONAL INFORMATION TRANSMITTER, AND POSITIONAL INFORMATION TRANSMITTING METHOD - A novel positional information transmission system includes a plurality of positional information transmission units. The positional information transmission unit includes a close-range wireless communication unit that performs close-range wireless communication and a sonic wave transmission unit that transmits positional information as a sonic signal used for detecting a position of a receiver that receives the sonic signal based on information transmitted by the close-range wireless communication unit. | 2015-08-06 |
20150222371 | DETECTING AND AVOIDING INTERMODULATION INTERFERENCE - A first device and a second device may coordinate to determine a power level or frequency in a first frequency band that is associated with causing intermodulation (IM) interference at a second frequency band (e.g., a protected frequency band). An IM interference detection test may include at least a first test signal transmitted from the first device to the second device via a communications medium. The second device may detect for the presence of IM interference associated with the first test signal. A series of test signals may be used to identify power levels and/or frequencies that cause IM interference in the second frequency band. A transmitting device may improve performance by increasing power for particular frequencies up to a power level that maintains IM interference below a threshold level. | 2015-08-06 |
20150222372 | Methods and Systems for Determining Signal Strength Maps for Wireless Access Points Robust to Measurement Counts - Examples herein include methods and systems for determining signal strength maps for wireless access points robust to measurement counts. An example method comprises receiving data related to RSSI for a wireless AP for a plurality of locations of an area, and determining an intermediary signal strength map for the wireless AP based on the received data related to the RSSI for the wireless AP. The method also includes associating the intermediary signal strength map to a regularized signal strength map for the wireless AP that is based on a diffusion mapping model of signal strength. A given partition of the regularized signal strength map is linked to one partition of the intermediary signal strength map. The method also includes providing an output signal strength map for the wireless AP including values of the regularized signal strength map modified based on values of the intermediary signal strength map. | 2015-08-06 |
20150222373 | RECEIVING DEVICE - A receiving device that receives a signal in a receiving antenna. The receiving device includes a gain controller that adjusts a gain in the receiving device in response to information related to power of the signal, and a signal detector that determines whether, within a predetermined period after the information related to the power of the signal exceeds a first threshold value, the information related to the power of the signal exceeds a second threshold value which is larger than the first threshold value. The gain controller adjusts a search range of the gain in the receiving device based on a determination result of the signal detector with respect to the information related to the power of the signal. | 2015-08-06 |
20150222374 | RECEPTION DEVICE, RECEPTION METHOD, AND PROGRAM - Provided is a reception device including a first acquisition unit configured to acquire station information regarding a station transmitting a broadcasting wave of broadcasting on an arbitrary segment, a storage unit configured to store the station information, a selection unit configured to select a station transmitting a broadcasting wave that is receivable at a predetermined position as a tunable station to be tuned to using the station information, a specifying unit configured to specify a transmission frequency used at a transmission point of a broadcasting wave of the broadcasting performed by the tunable station using the station information, and a tuning control unit configured to perform tuning control such that a service of the broadcasting performed by the tunable station is tuned to according to the transmission frequency. | 2015-08-06 |
20150222375 | CONTENT MANAGEMENT - One or more embodiments of techniques or systems for content management are provided herein. In one or more embodiments, a user may preconfigure a device with preset stations or favorite stations, such as via an application on the device. The device may be utilized to synchronize a vehicle with the preset stations or favorite stations. In one or more embodiments, merely preset stations may be accessible on the vehicle during some scenarios to promote safe driving. For example, in such scenarios, merely the preset stations may be marked or defined as a favorite. In one or more embodiments, presets or favorites may be presented or organized based on characteristics of a user or other attributes, such as the time of day. In this manner, content management may be provided while promoting safe driving. | 2015-08-06 |
20150222376 | TRANSMITTER SERIALIZER LATENCY TRIM - A system and method for transmitting includes a plurality of multiplexers each configured to combine a pseudo random bit sequence (PRBS) with at least one input stream according to the data control clock. At least one storage device is coupled to an output of each of the plurality of multiplexers and is configured to latch data according to the data control clock. An output multiplexer is coupled to each of the at least one storage device and is configured to select between storage paths according to the data serializer clock. A PRBS checker is configured to compare a PRBS pattern on an output of the output multiplexer with a predicted PRBS pattern. A phase rotator is configured to adjust the data serializer clock based upon the comparison of the PRBS checker to reduce latency of the transmitter. | 2015-08-06 |
20150222377 | RECEIVER DESERIALIZER LATENCY TRIM - A system and method for receiving includes an input multiplexer configured to select between one or more input data streams and a pseudo random bit sequence (PRBS) to provide a serial stream. A plurality of storage devices is configured to sample the serial stream. An output demultiplexer is configured to demultiplex the sampled serial stream into a plurality of output streams. A PRBS checker is configured to compare a PRBS pattern on the plurality of output streams with a predicted PRBS pattern. A phase rotator is configured to adjust a data control clock based upon the comparison of the PRBS checker to reduce latency in the receiver. | 2015-08-06 |
20150222378 | METHOD AND SYSTEM FOR COMPENSATING FOR A TIME DISCREPANCY - A method and system for compensating for a time discrepancy. A first and a second vehicle-to-X communication system resort to an external time base. The first vehicle-to-X communication system determines a first internal time base from the external time base and the second vehicle-to-X communication system determines a second internal time base from the external time base. The first vehicle-to-X communication system sends vehicle-to-X data and the second vehicle-to-X communication system receives vehicle-to-X data. The vehicle-to-X data to be sent include a time stamp generated from the first internal time base and captured ambient sensor data include a first time stamp generated from the second internal time base. Alignment of the captured ambient sensor data with the received vehicle-to-X data is used to determine the time discrepancy between the first internal time base and the second internal time base and to compensate for it using a correction value. | 2015-08-06 |
20150222379 | CLOCK PHASE COMPENSATOR FOR MULTI-STAGE TIME DIVISION MULTIPLEXER - An upstream multiplexer multiplexes data into first and second serialized data streams based on first and second low frequency clocks each derived from a high frequency clock. A downstream multiplexer multiplexes the first and second serialized data streams into a third serialized data stream based on the high frequency clock. A timing error detector derives an error signal indicative of a phase-misalignment between the high frequency clock and the first and second serialized data bit streams based on the high frequency clock and the first and second low frequency clocks. A phase adjuster adjusts phases of the first and second low frequency clocks relative to the high frequency clock based on the error signal so as to reduce the phase-misalignment. | 2015-08-06 |
20150222380 | METHOD AND APPARATUS FOR GENERIC MAPPING PROCEDURE GMP AND METHOD AND APPARATUS FOR GENERIC MAPPING PROCEDURE GMP DEMAPPING - Embodiments of the present invention disclose a method for generic mapping procedure (GMP) mapping, which includes: first the information about a adjusted time slot to be occupied by a second GMP block container is carried in the GMP overhead of a first GMP block container; then, the size of the second GMP block container is adjusted in accordance with the inforamtion; eventually, a client signal is mapped into the adjusted second GMP block container adopting a GMP scheme. This GMP mapping method, when working with a corresponding demapping method, provides lossless mapping and demapping of client signals during the process of bandwidth adjusting. | 2015-08-06 |
20150222381 | AUTOMATIC GAIN ADJUSTMENT AND CONTROL METHOD AND DEVICE FOR ELIMINATING INTERFERENCE BETWEEN GSM AND LTE IN MSR RECEIVER - The disclosure relates to an automatic gain adjustment and control method and device for eliminating the interference between the GSM and the LTE in the MSR receiver. The method comprises: in an MSP receiver, an upper threshold and a lower threshold which are used for starting up gain control function are set; the ADC power of an ADC of the MSP receiver is detected when LTE OFMD starts; the detected ADC power is compared with the upper threshold and the lower threshold respectively; and based on that the comparison result is that the ADC power is larger than the upper threshold or is smaller than the lower threshold, the gain control function of the MSP receiver is started up, and otherwise, the gain control function of the MSP receiver is not started up. The disclosure can control the LTE and GSM signal power within a certain range. | 2015-08-06 |
20150222382 | OFDM Signal Processing Method and Apparatus - The invention provides a reception method and apparatus which provides a series of frequency shifts and filtering operations to sideband signals (lower, upper, and middle), to enable detection if the central part of a signal is analogue or digital, and to enable effective co-channel interference compensation. The invention enables (H)IBOC signals for example to be processed with a narrower bandwidth and therefore a lower processing clock speed and complexity is made possible compared to the conventional (H)IBOC-signal processing approach. | 2015-08-06 |
20150222383 | Indicating end of idle sequence by replacing expected code words while maintaining running disparity - Methods and systems for indicating an end of an idle sequence residing between first and second frames, while maintaining bounded running disparity, including: encoding the first frame; encoding a basic idle sequence utilizing a first line-code; producing an idle sequence by replacing M code words of the basic idle sequence with M alternative code words; encoding the second frame; transmitting the first frame, the idle sequence, and the second frame; and receiving the second frame by a second communication node. Each one of the M alternative code words is equal to a code word of the basic idle sequence. And the second communication node is unable to determine a starting point of the second frame based only on the idle sequence and the second frame, but is able to determine the starting point of the second frame based on difference between the basic idle sequence and the idle sequence. | 2015-08-06 |
20150222384 | Changing receiver configuration by replacing certain idle words with bitwise complement words - Methods and systems for indicating a configuration change of a communication link by replacing certain idle code words with bitwise complement code words, including: Encoding a first frame, a basic idle sequence, and a second frame. Producing, by a transmitter, an idle sequence by replacing certain M code words of the basic idle sequence with M bitwise complement code words, wherein each bitwise complement code word appears in the basic idle sequence. Receiving, by a receiver, the first frame, the idle sequence, and the second frame, wherein the basic idle sequence is known to the receiver. And identifying a change in configuration of the communication link based on a difference between the idle sequence and the basic idle sequence. | 2015-08-06 |
20150222385 | TRANSPONDER FOR WDM RING NETWORK - For a WDM ring network, a node has an optical add drop part and a transponder having a wavelength tunable transmitter for sending a selectable one of the wavelengths in a selectable direction around the ring to a destination node. There is a controller configured to select the wavelength to be sent by the wavelength tunable transmitter and to change the direction of sending around the ring, in response to a detection of a fault in sending in one of the directions. By making the transponder colourless and yet able to select direction, a simple protection switching capability can be added to an existing low cost WDM ring network having passive optical filters. This can be achieved without the need for a reconfigurable optical add drop multiplexer and associated control plane. | 2015-08-06 |
20150222386 | Grooming Multicast Traffic in Flexible Optical Wavelength Division Multiplexing WDM Networks - There is provided a distance-adaptive and fragmentation-aware all-optical traffic grooming (DFG) method, which addresses the all-optical traffic grooming problem while considering the transmission reach constraints. The DFG procedure provisions traffic demands in optical channels such that the spectrum requires for guard bands is minimized. The DFG procedure provisions optical channels such that network fragmentation is minimized while ensuring the transmission reach constrains over flexible-grid WDM networks. | 2015-08-06 |
20150222387 | Indicating end of idle sequence by replacing certain code words with alternative code words - Methods and systems for indicating an end of an idle sequence, including: encoding a first frame, encoding a basic idle sequence including code words, producing an idle sequence by replacing certain M code words of the idle sequence with M alternative code words, and encoding a second frame. Each one of the M alternative code words appears in the basic idle sequence. And a second communication node, which is unable to determine a starting point of the second frame based only on a received idle sequence, is able to determine a start of the second frame based on a difference between the received idle sequence and the basic idle sequence. | 2015-08-06 |
20150222388 | Encoding payloads according to data types while maintaining running disparity - Methods and systems for encoding frames while maintaining bounded running disparity, including: encoding the headers of the frames utilizing a first line-code; selecting the first line-code and a second line code for encoding first and second payloads of first and second frames, respectively, based on first and second data types of first and second data comprised in the first and second payloads, respectively; encoding the first and second payloads utilizing the first and second line-codes, respectively; and transmitting the first and second frames over a communication channel characterized by first and second channel conditions, respectively. The second line-code has a minimal Hamming distance lower than that of the first line-code, and the differences between the first and second channel conditions are not enough for selecting the second line-code instead of the first line-code for encoding the second payload. | 2015-08-06 |
20150222389 | INTERFACE CIRCUIT OPERATING TO RECOVER ERROR OF TRANSMITTED DATA - Provided is an interface circuit for transmitting and receiving data according to a communication protocol. The interface circuit includes: an encoder configured to encode input data to generate transmission data; a transmitter configured to output the transmission data; a data sequence detector configured to detect whether the number of successively same logic values in a data string of the transmission data is equal to or greater than a reference succession number; and a recovery section configured to control a recovery operation with respect to the transmission data, based on a detection result of the data sequence detector. With the interface circuit, data loss is prevented and data reliability is guaranteed. | 2015-08-06 |
20150222390 | Processing Method and Device for Packet Loss Compensation in Video-Conferencing System - A processing method and device for packet loss compensation in video-conferencing system are provided. The method includes: when a video conference is held, judging whether terminals participating in the video conference include one or more FEC terminals, if yes, matching code stream processing capabilities of transmitting terminal and receiving terminal between FEC terminals which transmit a code stream or between an FEC terminal and an ordinary terminal which transmit code stream, and converting a data code stream transmission rate of the transmitting terminal into a bearable data code stream rate of the receiving terminal. The device includes a judgment component and a matching component. The solution enables a terminal with packet loss to activate an FEC function to compensate lost data, and also enables an ordinary terminal without packet loss to keep an original data code stream rate for communication, thereby maximally ensuring the image quality of the video-conferencing system. | 2015-08-06 |
20150222391 | RECEPTION OF CO-CHANNEL SIGNALS | 2015-08-06 |
20150222392 | MAXIMIZING DATA RATE BY ADJUSTING CODES AND CODE RATES - The present invention provides for making code rate adjustments and modulation type adjustments in a pseudonoise (PN) encoded CDMA system. Coding rate adjustments may be made by changing the number of information bits per symbol, or Forward Error Code (FEC) coding rate. A forward error correction (FEC) block size is maintained at a constant amount. Therefore, as the number of information bits per symbol are increased, an integer multiple of bits per epoch is always maintained. The scheme permits for a greater flexibility and selection of effective data rates providing information bit rates ranging from, for example, approximately 50 kilobits per second to over 5 mega bits per second (Mbps) in one preferred embodiment. | 2015-08-06 |
20150222393 | METHOD FOR PROVIDING AUTOMATIC REPEAT REQUEST ERROR CONTROL AND RELATED TERMINAL AND ARQ CONTROL CENTER - A method for providing automatic repeat request error control in a broadcast communication network is provided. The method includes a first transmitting step of transmitting a data packet by a first terminal towards a second terminal; receiving the data packet and storing a copy of the data packet by a third terminal; determining an ARQ failure indication for the first transmitting step; and thereafter performing a second transmitting step of transmitting towards the second terminal, during an identical time-interval, of the data packet by the first terminal and the copy of the data packet by the third terminal. | 2015-08-06 |
20150222394 | METHOD, APPARATUS, UE, AND BASE STATION FOR TRANSMITTING HYBRID AUTOMATIC REPEAT REQUEST-ACKNOWLEDGEMENT INFORMATION - A method, an apparatus, a UE, and a base station for transmitting a HARQ-ACK are disclosed. The method includes: determining a channel for transmitting a HARQ-ACK; determining a HARQ-ACK feedback bit; and sending the HARQ-ACK feedback bit on the channel. According to this application, transmission of a HARQ-ACK between a UE and a base station can be implemented in a scenario where carrier aggregation is performed between base stations having a non-ideal backhaul. | 2015-08-06 |
20150222395 | TERMINAL, BASE STATION, WIRELESS COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - A terminal includes a determination unit that determines a PUCCH resource based on at least a first value in a case where downlink control information is detected with a PDCCH and a second value is not set, determines a PUCCH resource based on at least the second value in a case where the downlink control information is detected with the PDCCH and the second value is set, and determines the PUCCH resource based on at least the third value for the ePDCCH set with which the downlink control information is detected regardless of whether or not the second value is set in a case where the downlink control information is detected with the ePDCCH in the ePDCCH set. With this feature, a HARQ-ACK to a transport block transmitted on the PDSCH can be efficiently transmitted and received using a PUCCH. | 2015-08-06 |
20150222396 | Enhanced TDD UL HARQ timeline for UL-DL coexistence scenario - The present invention provides a method, apparatus and a program relating to an enhanced TDD UL HARQ timeline for UL-DL coexistence scenario. The present invention includes transmitting data in a first transmission, receiving acknowledgement information for Hybrid Automatic Repeat-Request pursuant to uplink-downlink configurations 0 or 6 in Time-Division-Duplex mode for LTE, determining the timing of a second transmission associated with a process for HARQ and transmitting data in a second transmission in the subframe according to the determined timing, wherein a second transmission associated with a process for Hybrid Automatic Repeat-Request is performed in a protected subframe if the first transmission associated with said process is performed in a protected subframe. | 2015-08-06 |
20150222397 | METHOD AND APPARATUS FOR DATA SECURITY AND AUTOMATIC REPEAT REQUEST IMPLEMENTATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for implementing data security and automatic repeat request (ARQ) in a wireless communication system are disclosed. Cipher entities are included in a wireless transmit/receive unit (WTRU) and an access gateway (aGW), and outer ARQ, (or radio link control (RLC)), entities are included in the WTRU and an evolved Node-B (eNode-B). Each cipher entity is located on top of an outer ARQ entity. The cipher entities cipher and decipher a data block by using a generic sequence number (SN) assigned to the data block. The outer ARQ entities may segment the ciphered data block to multiple packet data units (PDUs), may concatenate multiple ciphered data blocks to a PDU, or may generate one PDU from one data block. The outer ARQ entities may segment or re-segment the PDU when a transmission failure occurs. | 2015-08-06 |
20150222398 | Power Supply Line Data Transmission - A transmitter and a receiver for transmitting and receiving data via a power supply line comprise a local signal port for respectively receiving and transmitting a serial bit stream and a power line connection port for respectively transmitting a radio frequency signal and receiving the radio frequency signal via the power supply line. The transmitter comprises a modulator unit adapted for encoding the serial bit stream into a baseband signal and generating the radio frequency signal by mixing the baseband signal with a carrier wave so as to redundantly convey the at least one baseband signal in at least four spectral sidebands of the carrier wave. The receiver comprises a demodulator unit adapted for detecting the at least four spectral sidebands of the carrier wave in the radio frequency signal, isolating a baseband signal from the at least four spectral sidebands and decoding the baseband signal into the serial bit stream. | 2015-08-06 |
20150222399 | METHODS AND SYSTEMS FOR CONTROLLING CELLS IN A NETWORK - At least one example embodiment discloses a method of coordinating a change from a first operating state to a second operating state of a selected cell in a system. The method includes changing to an intermediate state from the first operating state based on first signaling information exchanged between a serving cell of a user equipment (UE) and the selected cell in the first operating state and at least one signal received by the selected cell in the first operating state from the UE, the first operating state being a dormant state and operating in the intermediate state based on second signaling information between the serving cell and the selected cell, third signaling information between the serving cell and the UE and transmission information between the UE and the selected cell, the intermediate state being between the first operating state and the second operating state, the second operating state being an on state where the selected cell serves the UE. | 2015-08-06 |
20150222400 | METHOD AND APPARATUS FOR CONTROLLING CSI REPORT - The present invention relates to a method and an apparatus for controlling a Channel State Information (CSI) report. According to an embodiment of the present invention, a method for controlling a CSI report of a User Equipment (UE) in a base station of a Long Term Evolution (LTE) mobile communication network is provided. The method includes a step of determining a CSI report set for a UE, where the CSI report set includes multiple CSI feedback modes, and each CSI feedback mode is defined to include a Non-Zero Power Reference Signal (NZP RS) resource part for channel measurement and an Interference Measurement Resource (IMR) part for interference measurement. In addition, the method further includes a step of sending to the UE Radio Resource Control (RRC) signaling indicating the CSI report set. | 2015-08-06 |
20150222401 | METHOD AND DEVICE FOR SENDING SIGNALS AND CONFIGURATION INFORMATION AND FINDING TERMINALS - A method and device for sending signals and configuration information and finding terminals, which relate to the field of wireless communications and are used for solving the problem of how terminals find each other. In the present invention, a first terminal sends a D2D signal according to sending resource configuration information about the D2D signal acquired from a network side, and a second terminal searches for the D2D signal according to receiving resource configuration information about the D2D signal acquired from the network side and determines that the corresponding first terminal is found when finding the D2D signal. It can be seen that the present solution solves the problem of how terminals find each other. | 2015-08-06 |
20150222402 | TERMINAL, COMMUNICATION METHOD, AND INTEGRATED CIRCUIT - In a communication system in which a base station | 2015-08-06 |
20150222403 | DATA TRANSMISSION METHOD AND APPARATUS IN NETWORK SUPPORTING COORDINATED TRANSMISSION - A data transmission method and an apparatus in a network supporting coordinated multipoint transmission are provided. The method includes transmitting candidate sets of initial state information used to generate Demodulation Reference Signal (DMRS) scrambling sequences for the transmission points to the UE, and transmitting an indication corresponding to at least one candidate set of initial state information respectively associated with at least one transmission point to the UE, wherein the initial state information is used by the UE to generate DMRS scrambling sequences. | 2015-08-06 |
20150222404 | METHOD FOR GENERATING AND TRANSMITTING A REFERENCE SIGNAL FOR UPLINK DEMODULATION IN A CLUSTERED DFT-SPREAD OFDM TRANSMISSION SCHEME - Disclosed is a method for generating and transmitting a reference signal in a clustered DFT-spread OFDM transmission scheme. A method for generating and transmitting a DM-RS in a clustered DFT-spread-OFDM scheme comprises: a step of generating DM-RS sequences corresponding to the number of clusters allocated for an uplink transmission; and a step of mapping the generated DM-RS sequences to the relevant DM-RS symbol positions for each cluster. Accordingly, the method for generating and transmitting a reference signal according to the present invention, in which DM-RS sequences are allocated and transmitted on a cluster basis, uses a complete DM-RS sequence for each cluster, and therefore inter-cell interference can be weakened, and problems which might occur when applied to a multi-user MIMO (MU-MIMO) scheme can be solved. | 2015-08-06 |
20150222405 | METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN MULTIPLE ANTENNA WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR - A method for transmitting sounding reference signals by a user equipment (UE) in a wireless communication system. The method according to one embodiment includes configuring an initial cyclic shift (CS) value and an initial comb value via a higher layer; setting a comb value for at least one antenna port; and transmitting the sounding reference signals using the comb value via at least one antenna port. | 2015-08-06 |
20150222406 | MU-MIMO ACKNOWLEDGEMENT PROTOCOL EFFICIENCY - A method for improving multiple-user (MU) multiple-input-multiple-output (MIMO) acknowledge (ACK) protocol efficiency includes: receiving a sounding frame from a device, sending a feedback response, which includes quantized channel state information (CSI) to the device, receiving an MU physical-layer protocol data unit (PPDU) frame from the device, and in response to receiving the MU PPDU frame, sending an ACK frame to the device without receiving a polling frame prior to the ACK frame. | 2015-08-06 |
20150222407 | Methods of Receiving MIMO Transmissions and Related Devices - A method of operating a terminal in a radio access network may include receiving a transmission of first and second data blocks over respective first and second multiple-input-multiple-output (MIMO) layers during a transmission time interval (TTI). Respective first and second demodulated codewords may be generated corresponding to the transmission of the first and second data blocks, and the first and second demodulated codewords may be decoded. Responsive to failure decoding the first demodulated codeword and success decoding the second demodulated codeword, a negative acknowledgement may be transmitted indicating failure receiving the first and second data blocks. Related terminals are also discussed. | 2015-08-06 |
20150222408 | EPHICH FOR LTE NETWORKS WITH UNLICENSED SPECTRUM - An enhanced acknowledgement indicator channel is discussed that multiplexes acknowledgement signals for multiple uplink signals from various user equipments (UEs) into the enhanced acknowledgement indicator channel. The channel is divided into a number of paired data and pilot resource element groups that can be precoded independently of one another, such that each paired resource element group is precoded using a different or independent precoding than the other paired resource element groups. If the base station determines a failure to decode any uplink signals, instead of sending acknowledgement signals over the indicator channel, the base station may, instead, generate uplink grants for retransmission of the uplink signals. | 2015-08-06 |
20150222409 | METHOD AND APPRATUS FOR SIGNALING THE RELEASE OF A PERSISTENT RESOURCE - A method and apparatus for signaling the release of a persistent resource in long term evolution (LTE) are disclosed. An indication of the release of a downlink (DL) persistent resource is received by a wireless transmit receive unit (WTRU) from an evolved Node-B (eNB) via a physical downlink control channel (PDCCH). A positive acknowledgement (ACK) is transmitted by the WTRU which denotes that the indication has been received. The PDCCH or a medium access control (MAC) CE may be used by the eNB to signal the indication. At least one bit may be added to contents of the PDCCH to signal whether the PDCCH is for DL persistent or dynamic resource allocation. The DL persistent resource is then released and an indication that the DL persistent resource has been released is transmitted. | 2015-08-06 |
20150222410 | METHOD AND APPARATUS FOR FREQUENCY HOPPING COEXISTENCE IN UNLICENSED RADIO FREQUENCY BANDS FOR MOBILE DEVICES - Apparatus and methods for frequency hopping among a set of frequency channels used for secondary cells by wireless devices operating with carrier aggregation across a combination of licensed and unlicensed radio frequency (RF) bands are described. A wireless device establishes a connection with an eNodeB using a primary component carrier (PCC) of a primary cell in a licensed radio frequency band. The wireless device obtains a configuration for a secondary cell operating in the unlicensed radio frequency band from the eNodeB, the configuration including a set of RF channels and a frequency-hopping pattern for communicating via a secondary component carrier in the secondary cell. The wireless device transmits to or receives from the eNodeB, via the SCC during a first hop of the frequency-hopping pattern using a first frequency channel in the set of frequency channels, and using a second frequency channel during a second hop. | 2015-08-06 |
20150222411 | ELECTRONIC DEVICE AND METHOD FOR PROVIDING COMMUNICATION SERVICE - An electronic device and method for providing a communication service are provided. The method of operating an electronic device includes: receiving a first signal transmitted through a first band and a second signal transmitted through a second band; determining a communication mode of the electronic device for processing the first signal and the second signal based on device information or environment information of the electronic device; and processing the first signal and the second signal using at least one of a first modem or a second modem functionally connected to the electronic device based on the communication mode, wherein the processing of the first signal and the second signal includes: processing, when the communication mode is a first mode, the first signal in the first modem and the second signal in the second modem; and processing, when the communication mode is a second mode, the first signal and the second signal in the first modem. | 2015-08-06 |
20150222412 | DUPLEXING APPARATUS, WIRELESS DEVICES AND RELATED METHODS - The invention provides duplexing apparatus, wireless devices and methods for duplexing signals in which measurements are taken at multiple frequencies across a frequency band of interest, and in which a balancing impedance is controlled as a function of those measurements. Isolation between the RX and TX nodes is enhanced across the frequency band as a result. | 2015-08-06 |
20150222413 | Synchronization in Computer Network - Methods, apparatus, and computer program products for operating a network node of a computer network are provided. A network node of a first synchronization island detects that at least one communication port(s) of the network node is connected to a network node of a second synchronization island. The first synchronization island and the second synchronization island are synchronized to different master clocks. The network node acquires an announce message from the communication port connected to the second synchronization island, the message including operational parameters of a master clock of the second synchronization island. The operational parameters include a priority parameter representing priority of the master clock of the second synchronization island. The network node overwrites automatically the priority parameter of the message by a new priority parameter indicating the priority of the master clock of the second synchronization island is lower than the priority of master clock(s) of the first synchronization island. | 2015-08-06 |