|| List of recent Demodulation-related patents
| Method and apparatus for transmitting and receiving different signal types in communication systems|
A method and apparatus are provided for transmitting a reference signal (rs) by a user equipment (ue) in a wireless communication system. The method includes transmitting a demodulation reference signal (dm rs) and information data in a sub-frame; and transmitting a sounding reference signal (srs) in a last symbol in another sub-frame.
| Base station apparatus, mobile station apparatus, and transmission method|
A base station able to maintain backward compatibility with an lte mobile station while minimizing the amount of increase in uplink scheduling information reception and demodulation/decoding processing in independent uplink/downlink cell data transmission. A wireless communication system includes a cell #1, a cell #2, and an lte-a mobile station, and supports independent uplink/downlink cell data transmission.
|Combining channel quality measurements based on sounding reference signals and demodulation reference signals|
A first communication node communicates by multiple-input-multiple-output (mimo) wireless communications with a second communication node of a wireless communication system. The method includes receiving a sounding reference signal (srs) over a plurality of subcarriers transmitted by the second communication node for mimo communications.
|Communication system, communication device, and method for operating communication system|
A communication system according to the present invention comprises a first communication device and a second communication device for performing power line communication using a power line as a transmission line with the first communication device, and in the communication system, the first communication device has a detection means for detecting a zero crossing timing of a commercial power supply and a transmitting means for transmitting a transmission signal modulated in ofdm mode at the zero crossing timing, the transmitting means first transmits a header signal (hs) having a preamble as the transmission signal when the power line communication is started, and the transmitting means transmits a data signal (ds) having no preamble as the transmission signal after the header signal (hs) is transmitted, and the second communication device has a receiving means for performing a demodulation process on the transmission signal which is received, to thereby obtain receive data.. .
|Method for transmitting reference signals in a downlink multiple input multiple output system|
In a system having a plurality of cells participating in a coordinated multi-point (comp) operation, a method for transmitting reference signals (rss) to user equipment (ue) includes generating, by base station (bs) included in each of the plurality of cells, a subframe including rss for a ue located in the each of the plurality of cells, and transmitting the generated subframe to the ue by the bs. The rss include rss for channel measurement, and rss for data demodulation, the plurality of cells are grouped according to frequency shift values applied to the rss for channel measurement and rs allocation patterns are determined for two cells among the plurality of cells according to a predetermined rule..
|User equipment, radio network node and methods therein|
Embodiments herein relate to a method in a user equipment (10) for performing channel estimation of one or more long term channel properties at the user equipment (10), wherein the user equipment (10) is served by a radio network node (12). The user equipment (10) assumes that a default channel state information reference signal, csi-rs, resource is co-located with a demodulation reference signal, dmrs, port when co-location is not explicitly signalled from the radio network node (12), wherein the default csi-rs resource is configured by reading a predetermined entry in a configurable list of candidate co-location csi-rs resources for a dynamic indication of co-location options in a downlink control information, dci, format.
|Multi-antenna radio-navigation signals reception device|
The invention relates to a device for receiving satellite radio-navigation signals comprising a plurality of receiving antennas forming an antenna array. The invention consists in using a plurality of antennas disposed around the circumference of a carrier and in demodulating the signals received by each antenna separately.
|Method and apparatus for digital demodulation and further processing of signals obtained in the measurement of electrical bioimpedance or bioadmittance in an object|
Methods and apparatus for digital demodulation of signals obtained in the measurement of electrical bioimpedance or bioadmittance of an object. One example comprises: generating an excitation signal of known frequency content; applying the excitation signal to the object; sensing a response signal of the object; sampling and digitizing the response signal to acquire a digitized response signal representing the response signal with respect to frequency content, amplitude and phase; correlating, for each frequency fac of the excitation signal applied, digitized samples of the response signal, with discrete values representing the excitation signal; calculating, using the correlated signals for each frequency fac of the excitation signal applied, complex values for the bioimpedance z(fac); providing, over time, a set of digital bioimpedance waveforms z(fac,t)); separating the base bioimpedance z0(fac), from the waveforms; and separating the changes of bioimpedance Δz(fac,t), from the waveforms..
|Wireless communication device, wireless communication method, and wireless communication program|
A wireless communication device includes a demodulation unit which demodulates a predetermined reception frequency, an s/n improvement processing unit which performs an s/n improvement process on a demodulated signal output from the demodulation unit, a first filter which performs an adaptive operation with respect to a frequency having a largest amplitude in a signal output from the s/n improvement processing unit, and outputs a filter coefficient updated by the adaptive operation, a controller which calculates the frequency of the largest amplitude defined by the filter coefficient output from the first filter, and controls the demodulation unit to update the reception frequency so as to reduce a difference between the frequency having the largest amplitude and a predetermined frequency, and a second filter which limits a range of a frequency bandwidth of the demodulated signal based on the frequency having the largest amplitude.. .
|Interference cancellation apparatus and receiver|
The present invention provides an interference cancellation apparatus and receiver. The apparatus comprises: an interference cancellation unit configured to, based on preset granularities, seriatim perform interference cancellation on interference on common reference signals (crss) of interfering cells in each granularity; wherein in performing interference cancellation on the interference on the crss of the interfering cells in each granularity, the interference cancellation is performed based on metric values of the interfering cells and/or a predetermined order of interference cancellation.
|System and method for dual chirp modulation|
A system for dual chirp modulation includes a transmission unit, a receiving unit, and a transmission channel. A modulation module of the transmission unit is configured to receive binary data and modulate the binary data by a first dual chirp sequence and a second dual chirp sequence for generating an output signal.
|Digital broadcasting system and method of processing data in digital broadcasting system|
A digital broadcasting system and a data processing method are disclosed. The data processing method includes receiving a broadcast signal in which main service data and mobile service data are multiplexed, demodulating the broadcast signal to acquire fast-information-channel signaling information including reference time information for a system clock, and outputting demodulation time information of a specific position of a frame of the broadcast signal, decoding the fast-information-channel signaling information, and establishing the reference time information as the system clock at a demodulation time according to on the outputted demodulation time information and decoding the mobile service data according to the system clock..
|Wireless communication device and wireless communication method|
A demodulation section demodulates a received signal. A decoding section decodes an output from the demodulation section.
|Method for receiving downlink control channel by means of a terminal in a wireless channel system and apparatus for same|
The present invention relates to a method for receiving a downlink control channel by means of a terminal in a wireless channel system and an apparatus for same. In particular, the method for receiving a downlink control channel by means of a terminal in a wireless channel system includes the steps of: dividing at least one resource block allocated to the terminal into the preset number of subsets; selecting one or more subsets for the terminal from the at least one resource block; setting the selected subset set as a search space for the terminal; and performing blind decoding for the search space to detect the downlink control channel, wherein the preset number of subsets are respectively demodulated by demodulation reference signals (dm-rs) defined with different antenna ports in each of the resource blocks..
|Methods, systems and apparatuses for operation in long-term evolution systems|
Methods, systems and apparatuses for operation in long-term evolution (lte) systems are provided, including a method implemented by a wireless transmit/receive unit (wtru) served by a cell, where an enhanced physical broadcast channel (epbch) may be sent by the cell and may including basic information for wtru control. The method may include receiving, by the wtru, the epbch, and demodulating the epbch based on a demodulation reference signal (dmrs).
|Method and apparatus for channel feedback based on reference signal|
Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design, a cell transmits a cell-specific reference signal (crs) used for channel estimation and coherent demodulation and a channel spatial information reference signal (csi-rs) used for channel measurement and channel feedback reporting.
A decoding device has a decoding section that has a plurality of decoding cores which decode a received packet (e.g., likelihoods generated as a result of demodulation), which will become data to be decoded, in parallel on a per-likelihood basis and in which a first decoding core and a second decoding core of a plurality of decoding cores can perform decoding in parallel and a control section that controls decoding, wherein the decoding section lets the second decoding core decode a second likelihood when the second likelihood is input in the middle of the first decoding core decoding the first likelihood of the data to be decoded, whereby another likelihood can be decoded by use of another decoding core in the middle of decoding of a certain likelihood. Thus, entire decoding speed is increased..
|Apparatus and method for biasing power control towards early decode success|
Disclosed are an apparatus and method for power control biasing towards early decode success of voice calls. In an aspect, the apparatus and method are configured to measure a signal-to-noise ratio (snr) of a downlink transmission; request a base station to increase transmit power at the start of a transmission time interval (tti) for a downlink voice call transmission; demodulate one or more voice frames of the voice call transmission; performing early decoding of one or more demodulated voice frames; determine whether the early decoding was successful; when the early decoding was successful, terminate demodulation and decoding of the voice call transmissions and request the base station to decrease transmit power; and when the early decoding was unsuccessful, request the base station to decrease transmit power for the remainder of the voice call transmission..
|Frame formatting for high rate optical communications|
Methods, systems, and devices are described for formatting of data streams to be transmitted over fiber optic channels, and for processing received optical signals. A data transmission device may include a digital coding and modulation module that encodes a digital data stream, inserts unique words into the digital data stream, and modulates the encoded data stream and unique words onto optical channels for transmission over an optical fiber.
|Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver|
In a coherent optical receiver, sufficient demodulation becomes impossible and consequently receiving performance deteriorates if an interchannel skew arises, therefore, a coherent optical receiver according to an exemplary aspect of the invention includes a local light source; a 90-degree hybrid circuit; an optoelectronic converter; an analog-to-digital converter; and a digital signal processing unit, wherein the 90-degree hybrid circuit makes multiplexed signal light interfere with local light from the local light source, and outputs a plurality of optical signals separated into a plurality of signal components; the optoelectronic converter detects the optical signals and outputs detected electrical signals; the analog-to-digital converter quantizes the detected electrical signals and outputs quantized signals; and the digital signal processing unit includes a skew compensation unit for compensating a difference in propagation delay between the plurality of signal components, and a demodulation unit for demodulating the quantized signals.. .
|Method and apparatus for transmitting demodulation pilots in a multi antenna wireless communication system|
Multiple antennas employed at transmitting and receiving nodes can significantly increase a mimo system capacity, especially when the geometry of the receiving node is high. The transmitting node can determine geometry by transmitting common pilots (which may include legacy and non-legacy common pilots) and receiving feedback from the receiving node based on the common pilots.
|Method, apparatus, and system for using common and demodulation pilot signals in multi-antenna wireless communications|
Multiple antennas employed at transmitting and receiving nodes can significantly increase a mimo system capacity, especially when channel knowledge of link(s) between the transmitting and receiving nodes is available at the transmitting node. Channel knowledge may be acquired through feedback provided by the receiving node based on a plurality of common pilots transmitted by the transmitting node.
|Code generating apparatus, reference signal generating apparatus, and methods thereof|
A code generating apparatus, demodulation reference signal generating apparatus, and methods thereof. The demodulation reference signal generator includes generating a non-correlation sequence for rs of a first resource block; spreading spectrums of elements in the non-correlation sequence for rs to be mapped to a first frequency resource of the first resource block, by using a first group of codes; second spreading spectrums of elements in the non-correlation sequence for rs to be mapped to a second frequency resource of the first resource block, by using a second group of codes; the first and second frequency resources are adjacent frequency resources in frequency resource elements used for rs transmission in the first resource block, and the first and second groups of codes are mirrors in column to each other; and mapping the spectrum-spread elements to the first and second frequency resources, respectively..
|Method and apparatus for signaling demodulation reference signals|
The teachings herein disclose device-side and network-side methods (400, 700) and apparatuses (16, 18, 20) for advantageously controlling demodulation reference symbol, “dmrs”, transmissions by wireless devices (20) operating in a wireless communication network (10), so as to reduce or minimize interference between the dmrs transmissions from different wireless devices (20). In one aspect, such improvements in interference control are achieved by, at individual ones of one or more wireless devices (20) operating in the network (10), optionally disabling cyclic shift hopping within individual repetitions of an orthogonal cover code applied to dmrs transmissions by the wireless device (20)..
|Magnetic disk device and demodulation position correcting method|
According to one embodiment, a magnetic head, a magnetic disk and a magnetic recording controller are provided. The magnetic disk has a burst pattern recorded thereon for determining a position of the magnetic head on a track based on a reading result by the magnetic head.
|Signal amplification circuit and signal amplification determination circuit including the signal amplification circuit|
A signal amplification circuit includes an input terminal; a first chopper modulation circuit; a first amplifier having an amplification circuit and a chopper demodulation circuit, a capacitance feedback circuit having a second chopper modulation circuit, a first switch constituting a voltage follower circuit with the amplification circuit; a second switch; a second amplifier to convert the differential output signal from the second output terminal into a single-end signal; and a filter to pass at least a predetermined frequency component of the chopping frequency from the single-end signal from the second amplifier to output an output signal of the signal amplification circuit.. .
|Interactive entertainment system|
Disclosed here is an interactive audio system and a method of operating the same. In one embodiment, the interactive audio system comprises a processor and a receiving module for receiving a radio frequency (rf) carrier signal associated with a broadcast station.
|Combination a/53 and a/153 receiver using a hiho viterbi decoder|
A broadcast and receiver system for performing content from combined a/53 and a/153 standard transmissions enabling simultaneous reception of both signal types with one device. A combination hdtv/mobile dtv chip can be used that does not alter the legacy hdtv forward error correction (fec) decoder and mobile dtv standard transmissions may include extra training signals aiding the demodulation of legacy hdtv reception.
|Circuits and methods for field-based communication|
Several circuits and methods for field-based communication are provided. In an embodiment, a field-based communication circuit includes a receiver circuit, a detection circuit and a control circuit.
|Receiver of radio frequency signals|
There is described a receiver of at least one radiofrequency modulated signal deriving from an antenna external to the receiver; the receiver comprises a first stage for the low noise amplification of the radiofrequency modulated signal and a demodulation stage of the above-mentioned signal. The receiver comprises a saw filter adapted to act as a pass band filter about a predetermined frequency for the signal deriving from the first stage, a logarithmic amplifier adapted to amplify the signal deriving from the saw filter, a peak detector of the output signal of the logarithmic amplifier, means adapted to control the gain of the first stage for the amplification of the radiofrequency modulated signal as a function of the output signal (vopeak) of the peak detector..
|Methods and apparatus for generating demodulation candidates using vector candidate sampling (vcs)|
Certain aspects of the present disclosure relate to techniques for generating likely demodulation candidates using vector candidate sampling (vcs). Vcs is used to generate high likelihood candidates for multiple input multiple output (mimo) demodulation that approaches optimal maximum a posteriori (map) performance with reasonable complexity.
|Systems and methods for reporting pilot signal power information in a four branch mimo system|
A base station (102), comprising a first antenna (111) for transmitting a first pilot signal; a second antenna (112) for transmitting a second a pilot signal; a third antenna (113) for transmitting a third pilot signal; and a fourth antenna (114) for transmitting a fourth pilot signal. The base station is configured to transmit pilot signal power information for indicating power values to a user equipment (104), ue, receiving the pilot signal power information.
|Uplink noise estimation for virtual mimo|
A system and methods for estimating a noise power level in an uplink signal for a virtual mimo system is disclosed. The system comprises a demodulation reference signal (dmrs) module configured to obtain a dmrs receive symbol from the uplink signal and determine a dmrs sequence for a first ue in the virtual mimo system.
|Wireless transmission system, wireless communication device and wireless transmission method|
Disclosed herein is a wireless transmission system. Transmission antennas are provided on a first communication apparatus while reception antennas individually corresponding to the transmission antennas are provided on a corresponding second communication apparatus.
|Apparatus and methods for improving demodulation reliability of an uplink high speed-dedicated physical control channel|
The present disclosure presents a method and apparatus for improving demodulation reliability of an uplink (ul) high speed dedicated physical control channel (hs-dpcch) at a base station. For example, the disclosure presents a method for receiving a secondary pilot channel from a user equipment (ue) on an uplink (ul) and demodulating the hs-dpcch using at least the secondary pilot channel.
|Switch driving circuit|
A switch driving circuit for driving a full-controlled power switch is disclosed, including a pulse-width modulation unit, a pulse transformer, an anti-interference module, a pulse-width demodulation unit and a driving-power amplifier. The pulse-width modulation unit converts a driving input signal into a positive-negative narrow pulse-width signal.
|Data slicer for reducing system start-up time and receiver with the same|
A receiver for reducing a system start-up time includes an antenna, an rf (radio frequency) circuit, a demodulation circuit, and a data slicer. The data slicer includes a filter, a comparator, a switch, and a delay generator.
|Receiving apparatus, data receiving method, and channel estimating apparatus and method therefor|
Disclosed are a receiving apparatus, a data receiving method, a channel estimating apparatus and a channel estimating method for multi-user interference (mui) signals according to the present invention. The channel estimating apparatus for mui signals has: a user type determining section configured to determine whether a ue apparatus corresponding to an own station belongs to a first type user or a second type user and to determine demodulation information to use in channel estimation of mui signals based on the type of the ue apparatus corresponding to the own station; and a second channel estimating section configured to perform channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of mui signals.
|Touch controller with improved diagnostics calibration and communications support|
A touch controller with improved diagnostics calibration and communication support includes a data capture register configured to sample data from one or a plurality of touch panel sense channels at an output of an analog to digital (a/d) converter. The sampled data is bit packed, and a demodulation waveform is captured, correlated with the sampled data.
|Method and apparatus for transmitting data|
Embodiments of the present disclosure provide a data transmission method and an apparatus. The method mainly includes: forming multiple antennas of a bs (base station) into a cross polarization antenna array, and calculating a weighted matrix of a to-be-transmitted data stream of the bs according to channel information between the bs and an ms (mobile station); performing weighted processing on the to-be-transmitted data stream of the bs according to the weighted matrix, and sending a data stream that has undergone the weighted processing from the bs to the ms.
|Enhanced node b and method of transmitting physical-downlink control channels (pdcchs) in a lte-a system|
Embodiments of an enb and method of transmitting pdcchs are generally described herein. In some embodiments, the enb may be configured to transmit pdcchs that are based on a ue-specific reference signal (i.e., a ue-rs).
|Single-chip multi-stimulus sensor controller|
A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator..
|Wireless communication system, mobile station apparatus and base station apparatus|
Regarding an uplink demodulation reference signal to which a cyclic shift and an orthogonal cover code is applied, ifdm is applied to the uplink demodulation reference signal while retaining the number of bits of control information that specifies a cyclic shift and an orthogonal cover code transmitted from a base station apparatus to a mobile station apparatus. A subcarrier offset and a subcarrier interval based on ifdm are uniquely determined in accordance with the cyclic shift and the orthogonal cover code of the uplink demodulation reference signal, reported from the base station apparatus to the mobile station apparatus..
|Method and arrangement for adapting power of reference signals|
A method and an arrangement in a radio network node for adapting transmission power of resource elements for demodulation reference signals, referred to as “reference elements” are provided. The radio network node is configured for multiple-input multiple-output transmission, referred to as “mimo transmission”, to a user equipment.
|Iterative covariance inversion based on linear receiver designs|
A method of wireless communication includes receiving a wireless signal at a linear receiver, and iteratively computing an inverted covariance matrix in frequency domain, one channel code at a time. The method also includes computing receiver demodulation coefficients based on the inverted covariance matrix and the frequency domain channel estimate or time domain channel estimate.
|Apparatus, systems and methods utilizing adjacent-channel power dependent automatic gain control for digital television demodulation|
An embodiment of the present invention provides a method for digital television demodulation, comprising using adjacent-channel power dependent automatic gain control (agc) for the digital television demodulation, wherein an agc technique takes into account a total power as well as power of adjacent channels to control gain of a gain control amplifier.. .
|Touch screen device|
It is provided a touch screen device applied in an electronic information technology area. In the touch screen device supporting an active capacitance stylus, a demodulation unit demodulates a signal received by a reception unit by two orthogonal signals, and then an amplitude recovery unit recovers an amplitude of the signal received by the reception unit, the amplitude of the signal received by the reception unit can be recovered relatively exactly without the need that the demodulation signal must be synchronous with the signal received by the reception unit (or the signal transmitted from the active capacitance stylus), and there is no need to add additional hardware resources for synchronization in the touch screen device of the embodiment of the present invention compared with the existing detection method which needs to perform synchronization of the demodulation signal and the signal transmitted from the active capacitance stylus in the prior art..
|Transmission of ack/nack bits and their embedding in the reference signal|
Transmitting a ack/nack response in a wireless cellular network by mapping the data value into a cyclic shifted version of a reference signal. A subframe is formed with a plurality of symbols with certain symbols designated as reference signal (rs) symbols.
|Method and a system for transmitting pilot|
The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe.
|Receiver with dual band pass filters and demodulation circuitry for an external controller useable in an implantable medical device system|
Receiver and demodulation circuitry for an external controller for an implantable medical device is disclosed. The circuitry comprises two high quality-factor band pass filters (bfps) connected in series.
|Ofdm modulation signal demodulator, receiving apparatus, and receiving and displaying apparatus|
An ofdm modulation signal receiving apparatus by which a user can generally grasp a reception state of an ofdm modulation signal and take measures to improve the reception quality thereof. The ofdm modulation signal receiving apparatus includes: a demodulating part that demodulates an ofdm modulation signal to obtain a demodulation signal value on a modulation coordinate for each sub carrier; an intra-interval total sum value calculating part that sums up, for each frequency distribution interval of the sub carriers, comparison result values obtained by comparing the sub carrier signal value to a predetermined determination value to calculate an intra-interval total sum value of each frequency distribution interval; and a selection storage part that stores a piece of noise level data according to the intra-interval total sum value for each frequency distribution interval..
|Inter-vehicle alert system with nagable video look ahead|
An apparatus includes a video encoder, a camera and radio frequency modulation circuitry. The radio frequency modulation circuitry is operative to modulate a radar signal to include video data.
|Receiver and digital demodulation circuitry for an external controller useable in an implantable medical device system|
Receiver and digital demodulation circuitry for an external controller for communicating with an implantable medical device (imd) is disclosed. A digital signal processor (dsp) is used to sample received analog data transmitted from the imd at a lower rate than would otherwise be required for the frequency components in the transmitted data by the nyquist sampling criteria.
|Method and system for notification of scrambling code identification signalling group|
Disclosed in the present disclosure is a method for notification of scrambling code identification signalling group, and the present disclosure comprises: a network side transmits a scrambling code identification signalling group to a receiver; the receiver generates a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group, generates a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and performs channel estimation according to the pilot symbol sequence. The present disclosure also provides a system for implementing the notification of scrambling code identification signalling group.
|Filter-based dpsk communications system|
A filter-based method of demodulating differentially encoded phase shift keyed (dpsk) optical signals, such as commonly used binary-dpsk (dbdpsk) and quadrature dpsk (dqpsk) signals, that can achieve optimal receiver sensitivity is described. This approach, which combines filtering and differential phase comparison, can reduce the complexity and cost of dpsk receivers by obviating delay-line interferometer-based demodulation.
|Reception apparatus, reception method, program, and reception system|
The present technique relates to a reception apparatus, a reception method, a program, and a reception system capable of starting decoding of data in a short time. A reception apparatus according to an aspect of the present technique includes a demodulation unit configured to demodulate a modulated signal used to transmit transmission control information about data and the data to be transmitted, a first decoding unit configured to decode the transmission control information obtained by demodulation performed with the demodulation unit, a storage unit configured to store the data obtained by demodulation performed with the demodulation unit, and a second decoding unit configured to decode the data stored in the storage unit on the basis of the transmission control information decoded by the first decoding unit.
|Method and apparatus for a wireless communication receiver using serial localization with indecision|
In one aspect, the present disclosure provides an advantageous generalization of a slic receiver structure, by allowing multiple solutions to survive at any one or more of the serial stages included in the slic receiver. Where any given stage produces multiple solutions, the next stage of the slic receiver processes those multiple input solutions to produce multiple output solutions.
|Radio module, radio assembly and corresponding method|
A radio module is disclosed that includes a baseband device, a layer device, and a multi radio antenna. The baseband device is arranged to perform digital modulation and/or demodulation.
|Method and device for adjusting demodulation pilot frequency in wireless communication system|
Disclosed is a method for configuring a pilot frequency in a wireless communication system, comprising: on the basis of at least one item among a current wireless channel characteristic parameter, device capability information of a correspondent node, and system requirement information, configuring in real-time a pilot frequency for different transmissions during a transmission process; and transmitting the configuration result to the correspondent node. Also disclosed is a corresponding device for configuring the pilot frequency.
|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.
|Method and apparatus for transmitting/receiving downlink control channel in wireless communication system|
The present invention relates to a wireless communication system, and more particularly, discloses a method and a downlink reception apparatus, in which at least one cell is set, for transmitting and receiving a downlink control channel. According to one embodiment of the present invention, the method for receiving the physical downlink control channel (pdcch) by the downlink reception apparatus in which at least one cell is set, comprises: a step of receiving a virtual resource block (vrb) set setting information for a potential pdcch transmission; and a step of monitoring the vrb set and demodulating the pdcch, wherein information on the vrb set, with regard to a cell for which pdcch non-crossed interleaving is set or to a cell for which the pdcch demodulation is set, based on the downlink reception apparatus-specific reference signal, can be commonly defined for a first slot and a second slot in a downlink subframe..
|Base station, terminal, communication system, communication method, and integrated circuit|
A base station is provided in which a terminal efficiently controls a demodulation reference signal for a data signal transmitted from the base station in a wireless communication system in which the base station and the terminal communicates with each other. The base station that performs a communication with the terminal includes a data signal generation unit that generates a data signal for terminal, and a demodulation reference signal for a data signal multiplexing unit that multiplexes a demodulation reference signal for a data signal, which is a known signal for demodulating the data signal, into the data signal.
|Receiving device, receiving method, program, and receiving system|
The present technology relates to a receiving device, a receiving method, a program, and a receiving system which may improve reception performance in the case of receiving a signal with a variable frequency band. A receiving device according to an embodiment of the present technology includes a demodulation unit configured to convert a received signal to a baseband signal in the case where a first frequency differs from a second frequency, wherein the first frequency is a center frequency in a band of the received signal, the second frequency is a center frequency in a band of a desired signal included in a part of the band of the received signal, and a dc component of the baseband signal is to be a frequency in the vicinity of the second frequency.
|Transmission method, transmission apparatus and reception apparatus|
A method of generating modulation signals is disclosed including generally three steps. A plurality of modulation signals are generated, each of which is to be transmitted from a different one of a plurality of antennas in an identical frequency band, wherein each modulation signal includes a pilot symbol sequence including a plurality of pilot symbols used for demodulation.
|Broadcast signal transmitter, broadcast signal receiver, and method for transceiving broadcast signals in broadcast signal transceivers|
A broadcast signal receiver according to the present invention comprises: a demodulator for performing ofdm demodulation on a received broadcast signal including a frame for the delivery of a broadcast service: a frame demapper for outputting the frame, the frame including a preamble that contains first signaling information, and a plurality of link-layer-pipes (llps) that contain plp data, second signaling information and third signaling information, with the plp data including a base layer and an enhancement layer of the broadcast service; and a decoder for decoding the first signaling information, for decoding the second and third signaling information, and for selectively decoding the plp data by using the third signaling information.. .
|Method and apparatus for retransmission processing in a communication receiver|
A method and apparatus for retransmission processing in a communication receiver includes improving the performance of incremental redundancy (ir) combining and retransmission processing at minimal increased complexity. One aspect of these improvements involves the use of prior decoding results, if the decoding block quality is above a threshold value, rather than or in addition to prior demodulation results, in retransmission processing.
|Systems, methods, apparatus, and computer-readable media for generating obfuscated speech signal|
Arrangements are described that may be used to reduce the intelligibility of speech using masker signals which are obfuscated yet correlated versions of the speech. Other applications of pitch analysis and demodulation are also described.
|Orthogonal signal demodulation|
A modulation transmission technique comprises placing orthogonal subcarriers across an arbitrary-wide band of frequencies without a fixed pre-defined center frequency. Receivers demodulate only the sub-group of subcarriers in which they are to receive data.
|Demodulation reference signals for retransmission in wireless communication|
Provided is a method for wireless communication which includes transmitting codewords according to an initial transmission rank, receiving downlink transmissions indicating at least one of the codewords to be retransmitted, constructing a demodulation reference signal (dm-rs) to be sent with the at least one codeword to be retransmitted, and retransmitting the at least one codeword with the dm-rs according to a retransmission rank. The downlink transmissions may include one or more physical hybrid automatic retransmission request indicator channels and the dm-rs may be constructed based at least in part on information in the downlink transmissions..
|Method for receiving downlink signal and method for transmitting same, and device for receiving same and device for transmitting same|
The present invention relates to a method for a transmission device to transmit data and a reference signal for demodulation for the data, to a reception device. The transmission device of the present invention appropriately configures the reference signal for demodulation of the data being transmitted to the reception device by the transmission device, and transmits the reference signal to the reception device with the data.
|Terminal device, base station device, and wireless communication system|
A dmrs generator generates reference signals used for demodulation to which orthogonal codes, which are a code for one layer and a code for another layer being orthogonal to each other, are assigned. Concerning each of layers up to the predetermined number of layers, codes are assigned to the reference signals according to the same rules as assignment rules employed in a different terminal device.