Abstract: A communication device may establish at least one type of connection among a first type of connection and a second type of connection which are according to a particular protocol defined in an NFC standard based on a current state of the communication device and a current state of an external device. The first type of connection may be a connection in which the communication device operates as a server and the external device operates as a client. The second type of connection may be a connection in which the communication device operates as a client and the external device operates as a server. The communication device may communicate the target data with the external device by using the established connection. The contents of the communication may be different in response to which type of connection is established.

Abstract: The number of active antenna ports used for uplink and/or downlink MIMO transmissions to a given user are dynamically adjusted, based on user data traffic payload size per period of time, and based on RF conditions. An example method, in a radio transceiver that supports two or more MIMO transmission and reception modes, begins with evaluating channel conditions between the radio transceiver and a remote wireless device and comparing a throughput demand for the remote wireless device to a forward link capacity and/or reverse link capacity. A forward link transmission mode or a reverse link transmission mode is changed, based on the channel conditions and the throughput demand. The transmission mode is changed from a first multi-stream mode to a second multi-stream mode having fewer streams than the first multi-stream mode, despite that channel conditions for the corresponding link support the first multi-stream mode.

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of Single-User (SU) Multi-In-Multi-Out (MIMO) communication. For example, a first wireless station may configure at least one Phase Antenna Array (PAA) according to a predefined SU MIMO configuration, the SU MIMO configuration including at least a number of data streams, a number of PAAs to be used by the first wireless station, and a polarization type to be applied at the first wireless station; and may transmit a SU MIMO transmission to a second wireless station via the at least one PAA over a directional wireless communication band.

Abstract: A transceiver for a wireless local area network (WLAN) and the transceiver including a sounding feedback module and a sounding feedforward module. The sounding feedback module is responsive to an explicit sounding from a transmitting one of the nodes to send feedback of multiple-input multiple-output (MIMO) channel state information (CSI) derived from the channel sounding to the transmitting one of the nodes for improving subsequent transmissions. The sounding feedforward module is configured to monitor changes in CSI since the last explicit sounding based on CSI determined from the subsequent transmissions of the transmitting one of the nodes and responsive to a determination of a change in CSI above a threshold amount, to feedforward to the transmitting one of the nodes indicia of the change in CSI.

Abstract: The present invention relates to a method and arrangements in a communication system for Multi User Multiple-Input-Multiple-Output (MU-MIMO) signaling via Multiple-Input-Multiple-Output (MIMO) antennas between a base station and one of a plurality of mobile terminals supporting both Single User and Multi User Multiple-Input-Multiple-Output (SU-MIMO and MU-MIMO) signaling modes. Switching between the modes is supported in the system and the modes have partly shared signaling. SU-MIMO mode signaling which is redundant, i.e. not needed, for MU-MIMO mode signaling is identified. Bits, i.e. data bits, of the identified redundant signaling is re-interpreted or re-defined to comprise signaling information associated with MU-MIMO mode. The signaling information associated with MU-MIMO mode is signaled to the mobile terminal by using the reinterpreted redundant bits.

Abstract: Disclosed is a precoding method comprising the steps of: generating a first coded block and a second coded block with use of a predetermined error correction block coding scheme; generating a first precoded signal z1 and a second precoded signal z2 by performing a precoding process, which corresponds to a matrix selected from among the N matrices F[i], on a first baseband signal s1 generated from the first coded block and a second baseband signal s2 generated from the second coded block, respectively; the first precoded signal z1 and the second precoded signal z2 satisfying (z1, z2)T=F[i] (s1, s2)T; and changing both of or one of a power of the first precoded signal z1 and a power of the second precoded signal z2, such that an average power of the first precoded signal z1 is less than an average power of the second precoded signal z2.

Abstract: A method by a network node in a communications system includes determining a codebook subset restriction indicating a reduced set of precoding matrices out of an original set of precoding matrices in an original codebook. The full set of Precoding Matrix Indicator, PMI, bits is used to identify the original set of precoding matrices in the original codebook. The method includes determining a reduced set of Precoding Matrix Indicator, PMI, bits for use in a feedback channel based on a number of entries in the reduced set of precoding matrices. The reduced set of PMI bits has fewer bits than the full set of PMI bits. Related user equipments, methods by user equipments and network nodes are disclosed.

Abstract: A telecommunications system is provided that is controllably operable as a sectorized antenna system and as an omnidirectional antenna system without requiring hardware reconfiguration. The telecommunications system includes a phase correlation measurement unit that can be between a sectorized antenna sub-system and a remotely located RF source site. The phase correlation measurement unit can be coupled to the RF source site over at least one feed line. The phase correlation measurement unit can output signals for controlling a phase shifter at the RF source site for phase shifting downlink signals and for causing operation of the sectorized antenna sub-system as an omnidirectional antenna sub-system. In a sectorized operation mode, the phase correlation measurement unit and the phase shifter can be inactivated.

Abstract: According to one embodiment of the disclosure, a non-transitory computer-readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations. One of these operations comprises transmitting, from a first device to a second device, a first plurality of frames using a first polarization configuration for a first antenna corresponding to the first device. Based on feedback information associated with the first plurality of frames, a second polarization configuration, which is different than the first polarization configuration, is selected for transmitting a second plurality of frames. Thereafter, the second plurality of frames is transmitted from the first device to the second device using the second polarization configuration for the first antenna.

Abstract: 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.

Abstract: A procedure to establish a link in a directional wireless system where two nodes cannot listen to each other unless optimized beamforming pair is used and timing and framing synchronization is acquired. The procedure determines a set of beamforming pairs that the nodes can use for communication in addition to acquiring the framing and timing synchronization. Training packets are periodically transmitted by a transmitter while a receiver listens in each of a number of receive directions. Training packets are sent N times in N directions while a receiver listens in each of M receive directions until all N×M possible transmit and receive direction pair possibilities are tried. The receiver informs the transmitter which transmit and receive direction pairs were successful in creating communication links between the nodes.

Abstract: In a mobile communication system that supports downlink multi-antenna transmission, a base station managing a cell receives beamforming control information fed back from each of a plurality of beamforming target terminals connected to the cell, and null steering control information fed back from a null steering target terminal. When there exists no beamforming target terminal that feeds back the beamforming control information that coincides with the null steering control information, the base station selects, as a pair terminal, a beamforming target terminal that feeds back the beamforming control information containing a predefined rank indicator.

Abstract: A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station.

Abstract: A method for transmitting channel status information (CSI) of downlink multi-carrier transmission includes generating the CSI including at least one of a rank indicator (RI), a first precoding matrix index (PMI), a second PMI and a channel quality indicator (CQI) for one or more downlink carriers, the CQI being calculated based on precoding information determined by a combination of the first and second PMIs, determining, when two or more CSIs collide with one another in one uplink subframe of one uplink carrier, a CSI to be transmitted on the basis of priority, and transmitting the determined CSI over a uplink channel. If a CSI including an RI or a wideband first PMI collides with a CSI including a wideband CQI or a subband CQI, the CSI including a wideband CQI or a subband CQI has low priority and is dropped.

Abstract: A technology that is operable to schedule data transfer for a multiple user multiple-input and multiple-output (MU-MIMO) communications network is disclosed. In one embodiment, an enhanced node B (eNode B) is configured with circuitry configured to receive a sounding signal from each of a plurality of user equipment (UEs). One or more major paths of the sounding signals from each of the plurality of UEs are determined. An angle of arrival (AoA) is determined that is associated with each of the one or more major paths. The plurality of UEs are grouped into one or more candidate MU-MIMO sets using the AoAs associated with each of the one or more major paths. Data transmissions are scheduled for one or more of the candidate UEs of the candidate MU-MIMO set on one or more of the major paths of each of the candidate UEs.

Abstract: Embodiments of the present disclosure describe methods and apparatuses for selective application of cyclic shift diversity in uplink communications of mobile communication systems. Other embodiments may be described and/or claimed.

Abstract: There is provided an arrangement for a wireless communication system that includes a set of power amplifiers and a set of antennas based on which at least two different configurations are provided, including a first configuration of power amplifiers and antennas and a second configuration of power amplifier(s) and antennas. The arrangement also includes switching circuitry configured to switch between the configurations. The second configuration employs a smaller number of power amplifiers than the first configuration, and the second configuration has fewer power amplifiers than antennas where at least one power amplifier is connected to at least two antennas via respective antenna branches that are configured with different delays, as represented by delay elements. A difference in delay between a pair of these antenna branches is based on a measure representative of the inverse bandwidth of a signal to be transmitted through the antennas.

Abstract: 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 (101) that configures a DMRS mapping pattern for each terminal and outputs a DMRS and information indicating the DMRS mapping pattern; and transmission section (106) that transmits a transmission signal including the information indicating the DMRS mapping pattern configured by reference signal configuration section (101) and the DMRS mapped according to the DMRS mapping pattern to the terminal.

Abstract: A method may include transmitting an amplification request relating to cellular signals transmitted by or received by the device. The method may include receiving, based on transmitting the amplification request, a set of amplification responses corresponding to a respective set of mobile devices. A mobile device, of the set of mobile devices, may transmit an amplification response, of the set of amplification responses, based on the mobile device being available to amplify the cellular signals. The method may include selecting at least two mobile devices, of the set of mobile devices, to amplify the cellular signals transmitted or received by the device. The at least two mobile devices may be selected based on information included in respective amplification responses, of the set of amplification responses, corresponding to the at least two mobile devices. The method may include causing the at least two mobile devices to amplify the cellular signals.

Abstract: A broadband multi-beam satellite radiocommunication system configured to implement a scheme for re-use of frequencies from a total band allocated to an uplink comprises a satellite with a multi-beam receive antenna that forms adjacent reception spots of a terrestrial coverage. Each reception spot consists of a central inner zone and a peripheral zone. Each central inner zone is a cellular pattern identical except for a scale factor to geographical cells wherein the principal frequency sub-bands of a bundle of separate or adjacent principal sub-bands are unitarily distributed and the combination of which is equal to a principal band, included in the total band.

Abstract: A relay device includes first demultiplexing units that demultiplex reception signals into demultiplexed signals in a narrower band, first and second multiplexing units that multiplex input signals to generate multiplexed signals, transmission antennas that transmit the multiplexed signals generated by the multiplexing units, a regenerative relay unit that modulates an information sequence obtained by carrying out demodulation processing to the multiplexed signal generated by the second multiplexing unit to generate a modulated signal, a second demultiplexing unit that demultiplexes the modulated signal into a demultiplexed signal in a band narrower than the band of the reception signal, and a switch unit that inputs the demultiplexed signals demultiplexed by the first demultiplexing units to the multiplexing units and inputs the demultiplexed signal demultiplexed by the second demultiplexing unit to the first multiplexing units.

Abstract: A low-cost, low-power, low-complexity, small, high-reliability, robust, seamless satellite communication network is described. The network performs encoding of a user signal at the customer premises to enable routing of the user signal to an appropriate destination beam at the satellite requiring low power user signal processing. Routing information is embedded at the periphery of the network CPE's rather than at the satellite. Embedding the routing information in this way greatly reduces on-board switching complexity and increases signal to interference ratio for the user.

Abstract: A method for adjusting a base station antenna may include receiving measured data including signal strength data for a signal received from the base station and location data from one or more user equipment, receiving planned radio coverage data, comparing the measured data with the planned radio coverage data, generating adjustment parameters based on a result of the comparison, and adjusting the antenna based on the adjustment parameters.

Abstract: Embodiments provide apparatuses, methods, and computer programs for a receiver and a transmitter of a wireless system. An apparatus (10) for a receiver (100) of a wireless communication system comprises means for receiving (12) radio signals, which are organized in repetitive radio frames, a radio frame being subdivided in sub-frames. The apparatus (10) further comprises means for extracting (14) a first payload data packet from the received radio signals using a single sub-frame of the received radio signals and for extracting a second payload data packet using two or more sub-frames of two or more radio frames. An apparatus (20) for a transmitter (200) comprises means for obtaining (22) information on a subset of radio resources for scheduled and/or non-scheduled transmission.

Abstract: An ONU communicates with an OLT that can transmit optical signals having different wavelengths simultaneously and receive optical signals having different wavelengths simultaneously. The ONU includes: an optical transceiver that receives any one of the optical signals that the OLT can transmit and transmits any one of the optical signals that the OLT can receive; a communication failure detection unit that detects a communication failure between the OLT and the ONU; and a wavelength selection unit that, when the communication failure detection unit detects a communication failure, changes a setting of a downstream wavelength to be received by the optical transceiver and an upstream wavelength to be transmitted by the optical transceiver.

Abstract: Disclosed herein are an optical network unit and a method for controlling the unit. In a passive optical network system, an optical transceiver of the optical network unit performs a wavelength change of an optical signal according to a wavelength setting command transferred from a media access control (MAC) unit and monitors a wavelength change state and reports the monitored wavelength change state to the MAC unit. When the wavelength malfunction occurs, the MAC unit blocks an uplink optical transmission of the optical transceiver.

Abstract: For protecting traffic from a source client entity (CE1) to a destination client entity (CE2) via an optical transport network and attachment circuits at ingress (A,B) and egress (C,D) nodes, there are multiple paths within the OTN, and the attachment circuits are dual homed. By sending (120) an indication of operational status of the dual homed attachment circuits within overhead associated with the traffic and sent with the traffic through the network, a selection can be made (130) of which of the provided paths and attachment circuits to use for the traffic, based on the indicated operational status, and on OTN fault detection, to protect against a fault. Thus protection can extend across the edge nodes without interworking of separate protection schemes and without a control plane. Traffic flows can be multiplexed at the ingress, with the indication in the overhead having separate indications for each of the traffic flows.

Abstract: An optical transmission system includes: a first optical transmission device configured to transmit measurement light to an optical transmission line on a first direction; and a second optical transmission device configured, when an optical transmission characteristic is measured, to loop-back the measurement light received from the first optical transmission device through an optical transmission line on the first direction and to transmit the measurement light to the first optical transmission device through an optical transmission line on a second direction, wherein, when the optical transmission characteristic is measured, the first optical transmission device receives the measurement light loop-backed by the second optical transmission device and measures the optical transmission characteristic between the first optical transmission device and the second optical transmission device.

Abstract: A method and apparatus are provided for detecting and recovering from a damaged signal line in a communication cable. Signals are transmitted over a first plurality of signal lines within the cable from a first end, signals are transmitted over a second plurality of signal lines within the cable from the second end, and the quality of signals received on each of the first plurality of signal lines at the second end of the cable are monitored. A first one of the first plurality of signal lines that is not providing a signal of a predetermined minimum quality is identified, the identified first signal line is automatically switched out for a first spare signal line within the cable, and one of the second plurality of signal lines that is logically associated with the identified first signal line is automatically switched out for a second spare signal line within the cable.

Abstract: Embodiments provide an apparatus for monitoring an optical signal to noise ratio (OSNR), a transmitter and a communication system. The apparatus for monitoring optical signal to noise ratio includes: a signal extracting unit and a signal processing unit. The signal extracting unit is configured to extract pilot signals and non-pilot signals at two polarization states from received signals, frequencies of the pilot signals at the two polarization states being different, and the polarization states being differentiated by the frequencies of the pilot signals; and the signal processing unit is configured to obtain OSNRs at the two polarization states by using the pilot signals and the non-pilot signals extracted by the signal extracting unit. With the embodiments of the present disclosure, by making the frequencies of the pilot signals at different polarization states be different, OSNRs at different polarization states may be obtained more accurately.

Abstract: An optical transmission system includes comprising: a first optical transmission apparatus to transmit wavelength-multiplexed optical signals; and a second optical transmission apparatus to receive the wavelength-multiplexed optical signals, the second optical transmission apparatus including: a receiver to perform digital coherent reception; a wavelength spacing monitor to transform a reception signal obtained by the digital coherent reception from a time domain signal to a frequency domain spectrum signal, and to monitor wavelength spacing of the spectrum signal; and a transmitter to transmit, to the first optical transmission apparatus, wavelength control information according to a monitor result obtained by the wavelength spacing monitor or the monitor result, wherein the first optical transmission apparatus includes: a receiver to receive the wavelength control information or the monitor result; and a control unit to control the wavelength spacing based on the wavelength control information or the monito

Abstract: An apparatus for transmitting information using a visible light includes at least three light emitting devices, each being installed based on a predetermined interval and direction, and a data transmitting unit to transmit data by controlling the at least three light emitting devices.

Abstract: A handshake synchronization restoration method and system based on visible light communication are provided. The method includes: after a transmitting end in which a state machine varies with unit time is powered on again, transmitting in the form of a visible light signal, to a receive and control system, a status reset signal which varies with unit time, wherein the receive and control system comprises one or multiple receiving ends; and receiving, by the receive and control system, the visible light signal, and when it is determined that the received visible light signal is a status reset signal, adjusting status of a state machine of a receiving end to a state indicated by the status reset signal. Status synchronization with the transmitting end is restored, avoiding a case in which the transmitting end is asynchronous with the receiving end after encountering power outage and being powered on again.

Abstract: Light-based communication (LCom) techniques are disclosed for decoding LCom signals using a sub-raster line sampling process. In accordance with an embodiment, a system is provided that is configured to sub-sample each raster line to capture data at a much faster sampling rate, which in turn allows for longer LCom messages and faster response time. The sub-sampling of the raster lines can be carried out in a rolling shutter mode. Without such sub-sampling of the raster lines, decoding the LCom signals may be effectively limited by the raster line frequency, given that the raster line sampling rate is tied to the horizontal resolution of the camera. However, by sub-sampling the raster lines as provided herein, the sampling rate can be a combination of horizontal and vertical pixels which represents a substantial improvement over standard raster line based rolling shutter modes.

Abstract: Embodiments of the present invention provide training sequence generation method which includes generating a pseudo random sequence; obtaining a chirp coefficient of a modulator using a negated chirp coefficient to modulate the pseudo random sequence; constructing a training symbol segment that includes L subcarriers in a frequency domain, transforming the training symbol segment from the frequency domain to a time domain to obtain a training symbol segment in the time domain, and generating a training sequence based on the training symbol segment in the time domain and outputting the training sequence.

Abstract: In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.

Abstract: A system, method, and device for RF upconversion. The system can include a laser, two EAMs, a photonic filter, a photonic service filter, two photodiodes, and a mixer. The first EAM can convert a received RF signal into the photonic domain by modulating an optical signal (received from the laser) based on the received RF signal to output a modulated optical signal. The photonic filter can output a filtered optical signal based on the modulated optical signal to the first photodiode which can output a filtered RF signal in the RF domain. The second EAM can output an LO modulated optical signal based on a received LO to the service filter which can output a filtered LO optical signal to the second photodiode which can output a filtered LO signal in the RF domain. The mixer can mix the filtered RF and LO signals to generate an IF signal.

Abstract: Methods and systems for superchannel subcarrier monitoring using frequency modulated (FM) tones includes frequency modulating an optical subcarrier of a superchannel with a first frequency that is unique to the optical subcarrier and is chosen to be smaller than an optical transmission frequency for carrier data modulated onto the optical subcarrier. Then, downstream detection and monitoring of the optical subcarrier may be performed based on demodulation of the first frequency. Each optical subcarrier in the superchannel may be modulated using a respectively unique FM tone.

Abstract: A phase-modulated optical link and methods are provided to suppress distortions in phase-encoded analog photonic links. The phase-modulated optical link includes a distortion compensation element. The distortion compensation element includes an optical comb generator that is seeded by a phase-encoded optical signal. The methods include generating an optical comb seeded by a portion of a phase-encoded optical signal and isolating desired peaks to be combined with a separate portion of the phase-encoded optical signal.

Abstract: Systems, devices and techniques for processing received QPSK modulated optical signals include sampling the received signal at twice the baud rate, thereby producing samples that are then processed as 9-QAM symbols using a decision directed least squares optimization method. A third stage of channel equalization is filtering performs channel equalization to mitigate linear filtering effects along the transmission link. Data bits are then recovered from the resulting symbol estimates. The received optical signal may also include dual polarized signals for increased bandwidth capacity.

Abstract: A system and method for processing an input signal includes a non-linear material component for receiving the signal. The non-linear material component is selected to mix the input signal with an optical pump wave to output an optical signal. The system also includes a parametric amplifier coupled to the non-linear material to obtain the optical signal and to amplify the optical signal to generate an amplified signal and an amplified idler which is a conjugate image of the amplified signal. The system also includes a frequency converter, to obtain the amplified signal and the amplified idler from the parametric amplifier and to convert the amplified signal and the amplified idler into a first output and a second output. The system also includes a first spectral sampling and processing apparatus to obtain and process the first output.

Abstract: One or more embodiments describe controlling audio signals at a user device during a communication session between the user device and a remote node, in which a primary audio signal is received at audio input means of the user device for transmission to the remote node in the communication session. It is determined whether the user device is operating in a first or a second mode. In dependence upon determining that the user device is operating in the first mode, the secondary audio signals are selectively suppressed from being output from the user device during the communication session.

Abstract: Systems and techniques for in-phase/quadrature estimation are described. As data frames are received at a wireless networking direct-conversion receiver, preambles of the data frames are examined to identify frequency-independent subcarriers. Preamble-based estimation is used to estimate in-phase/quadrature imbalance for frequency-independent subcarriers and blind estimation is used to estimate in-phase/quadrature imbalance for frequency-dependent subcarriers. The estimation may be performed continuously and refined as new frames are received. At appropriate intervals, compensation is performed using current imbalance estimates.

Abstract: A method implemented by a first network device where the method provides an adaptive clear channel assessment (CCA) by collecting a neighboring network device set for a wireless local area network (WLAN). The method detects a wireless signal from a second network device on a wireless medium. A signal quality of the wireless signal is then determined. An identity of the second network device is also determined. The second network device is then added to the neighboring network device set of the first network device, in response to determining that the second network device is a neighbor based on the signal quality of the wireless signal.

Abstract: A system and method sequentially measure the amplitude and phase of a signal in each of two or more noncontiguous spectrum segments (e.g., harmonics) which each include two or more portions which together span the spectrum segment, using a local oscillator (LO) signal whose frequency and phase change for each measurement. The measured phase of the signal for at least one of the portions in each spectrum segment is adjusted to account for the change of phase in the LO signal from measurement of one portion to another, using phases of one or more pilot tones measured in each portion. The phase-adjusted measurements of the output signal in the various portions are stitched together to determine the amplitude and phase of the output signal across the spectrum segment. The phase relationships between the spectrum segments are determined from phases of comb teeth of a comb signal measured in each spectrum segment.

Abstract: An apparatus comprises a receiver receiving wireless transmission of a real radio system from at least one base station of a radio system as a function of reception direction. The transmission comprises predetermined data. The apparatus comprises also a processing unit that forms taps of a delay profile on the basis of comparison between the data that is received and corresponding predetermined data. The processing unit estimates direction for the taps of the delay profile on the basis of a reception direction of the transmission, and forms radio channel data by associating the taps of the delay profile with the estimated direction. The radio channel data is for a radio channel model of a MIMO emulation in an OTA chamber having a plurality of antennas around a test zone where a device-under-test may be placed.

Abstract: A first base station provides overlapping coverage area with each of a plurality of second base stations. Each of the plurality of second base stations transmits a message comprising a subframe allocation bitmap indicating a plurality of subframes. The plurality of subframes comprises a plurality of almost blank subframes. Base stations in the plurality of second base stations configure the same set of subframes as the plurality of almost blank subframes.

Abstract: The invention provides an electronic device configured to operate as a traffic information client. The traffic information client device comprises an interface adapted to receive traffic information messages, where a traffic information message comprises a location code which identifies a location of a traffic event. The traffic information client device further comprises a memory and a relational database stored in the memory, the relational database comprising at least a first set of relations including at least one relation which directly or indirectly associates location codes with location information.

Abstract: Audio information is monitored by a user device that performs audio content recognition of any received audio content. The user device includes a scheduling logic unit, a probe, and an audio signature generator. The scheduling logic unit maintains a set of scheduling rules that define conditions that were present when previous audio content recognition of audio content received by the user device was successful. The scheduling logic unit receives currently present conditions of the user device, and compares the currently present conditions to the set of scheduling rules to determine if the currently present conditions match any scheduling rules. The user devices captures ambient audio content via the probe and generates audio signatures of the captured audio content using the audio signature generator if a match occurs, and inhibits capturing audio content by the user device and/or inhibits generating audio signatures if a match does not occur.

Abstract: The present invention discloses a radio frequency receiver and a receiving method, where the method includes: performing band splitting on a radio frequency signal of multiple carriers to obtain at least one band signal, and outputting the signal; separately performing filtering and amplification processing on the at least one band signal to obtain at least one processed signal; generating multiple oscillation signals; and selectively receiving a processed signal, of the at least one processed signal, that includes a target carrier; receiving an oscillation signal corresponding to the target carrier; selectively selecting a frequency division ratio from multiple frequency division ratios; using the frequency division ratio to perform frequency division on the received oscillation signal to obtain a local oscillator signal; using the local oscillator signal to perform frequency mixing on the received processed signal that includes the target carrier to obtain a mixed signal.