Patent application number | Description | Published |
20080247329 | Signal-to-Interference + Noise Ratio Estimator and Method, Mobile Terminal Having this Estimator - The SINR (signal-to-interference+noise ratio) estimator comprises a low-pass filter ( | 10-09-2008 |
20090034602 | FILTER WEIGHT ESTIMATION DEVICE WITH UPDATE AT HSDSCH SYMBOL RATE, FOR A SYMBOL LEVEL EQUALISER - A filter weight estimation device (D), for an equaliser of a communication receiver, comprises i) a tap delay line connected to N branches each comprising a descrambler (DS | 02-05-2009 |
20100070826 | TURBO DECODER WITH EXTRINSIC INFORMATION SCALING MODULES - The invention related to a turbo decoder comprising SISO decoding modules each other interconnected in a feedback control scheme having scaling modules for applying a scaling factor to extrinsic information delivered by said SISO decoding modules. The turbo decoder comprises a selection module for adaptively selecting said scaling factor based on a number of decoding iterations of the turbo decoder. | 03-18-2010 |
20100159914 | RADIO COMMUNICATION SYSTEM - A transmitting station (TS), for transmitting a plurality of symbols of a data signal in a communication system, comprises a process module (PM) arranged for adding subset of the symbols of the data signal to symbols of a predetermined signal prior to proceed to transmission of the data signal. | 06-24-2010 |
20100241935 | TURBO DECODER WITH STAKE HERITAGE FOR DATA BLOCK REDUNDANT VERSION DECODING - An iterative decoding device (ITD) for a communication receiver comprises: i) a means (SISO | 09-23-2010 |
20100284493 | DOWN-SAMPLED IMPULSE RESPONSE CHANNEL ESTIMATION - A method for deriving a channel transfer function from an Orthogonal Frequency-Division Multiplex (OFDM) signal received over a channel and having unmodulated sub-carriers and sub-carriers modulated with symbols, includes the steps of sampling the received OFDM signal at a sampling rate greater than the bandwidth of the OFDM signal, deriving from the sampled OFDM signal a set of time domain coefficients representative of the channel impulse response, and deriving from a subset of the set of time domain coefficients a channel transfer function in the frequency domain. | 11-11-2010 |
20110055657 | METHOD AND SYSTEM FOR STOPPING EXECUTION OF A TURBO DECODER - A method for conditionally stopping execution of a turbo decoder is proposed. The decoder has elementary decoders. Each elementary decoder performs a sequence of decoding operations and is arranged to receive an input from at least one other elementary decoder. The method determines for each specific decoding operation if the sequence of elementary decoding operations of the specific elementary decoder has substantially converged or substantially diverged. The method terminates the execution of decoding operations if a number of sequences has substantially converged or substantially diverged. | 03-03-2011 |
20120027109 | PROCESS AND RECEIVER FOR INTERFERENCE CANCELLATION OF INTERFERING BASE STATIONS IN A SYNCHRONIZED OFDM SYSTEM - A process and receiver for canceling interference generated by a set interference base stations in a synchronized OFDM communication system and receiver in a User Equipment comprising a set of Nrx antennas. The process and receiver that cancels interference generated by a set of base stations performs OFDM demodulation on a receiver signal for each antenna of a user equipment (UE). The process and receiver also monitors each UE antenna for pilot signals generated by nearby base stations. Then the process or receiver extracts the pilot signals and establishes a list of existing base station antennas. The channel power of any interfering antennas is measured and then the Nrx-N most powerful antenna is selected. The process or receiver then performs a joint detection of the N useful Data Symbols (UDS), together with the (Nrx-N) Interfering Data Symbols (IDS) that are demodulated by demodulation blocks. Thus, after being detected, the Nrx-N most powerful IDSs can be encoded and re-injected into a cancellation loop. | 02-02-2012 |
20120057628 | SYSTEM AND METHOD FOR OFDM RECEPTION IN THE PRESENCE OF DOPPLER EFFECT BASED ON TIME DOMAIN WINDOWING - An OFDM receiver for processing an OFDM received signal to perform OFDM reception in presence of Doppler effects is provided. The receiver has at least two parallel processing chains, each processing chain has a time domain windowing for processing an OFDM block. The processing consisting of the multiplication, element by element of the OFDM block, by a set of predetermined coefficients. | 03-08-2012 |
20120069834 | Process for Blind Detection of a Synchronization Signal for LTE - To detect a cell-specific synchronization signal, a modified correlation approach is used, which removes the need for channel estimation. | 03-22-2012 |
20120155411 | PROCESS FOR INTER-CELL INTERFERENCE CANCELLATION IN A SYNCHRONIZED OFDM SYSTEM, AND APPARATUS FOR THE SAME - A process for cancelling inter-cell interference between neighboring cells in a synchronized OFDM communication system allowing communication between one User Equipment (UE) fitted with at least two antennas and one serving base station is provided. The process allows multi-antenna mobile receiver in a UE to receive downlink information from a base station that includes both information relating to proper communication with the base station and additional information that was received by the base station from a neighboring base station that provides interference data about another UE. The multi-antenna UE is adapted to use the downlink information in its receiver circuitry to cancel the interference from the other UE. | 06-21-2012 |
20120157162 | Process for Computing a Frequency Offset for a UMTS Communication System Based on the CPICH Pilot Signals - Process for computing an estimation of the frequency offset in a receiver for a UMTS communication network said receiver receives the signal transmitted by two antennas and including two Common Pilot CHannels (CPICH), said process involving the steps of separating the two signals by means of computation and computing the frequency offset on the base of the two separated signals | 06-21-2012 |
20120163503 | Process for Estimating the Channel from the PSS Signal in a LTE Communication Network, and Receiver for the Same - A Method for estimating the channel in a Long Term Evolution (LTE) communication system, said method involving the step of extracting a Primary Synchronization Signal (PSS) from a received signal and further involving the step of spanning said PSS based Least Square (LS) channel estimation on the 64 sub-carriers so as to facilitate the MMSE channel estimation. Preferably, the spanning is performed by means of an interpolation of the particular sub-carriers which are not allocated to said PSS (#-32, d.c.) The method involves the steps of: —Perform LS channel estimation on the 62 sub-carriers containing the PSS ( | 06-28-2012 |
20120269302 | PROCESS FOR DECODING ALAMOUTI BLOCK CODE IN AN OFDM SYSTEM, AND RECEIVER FOR THE SAME - A process for decoding a signal being representative of a Space Time or Frequency Block coding during two signaling periods (STBC) or two parallel channels (SFBC) is provided. The process receives an OFDM signal received from at least one antenna. The process also performs an OFDM demodulation in order to generate N frequency domain representations of the received signal. Then the process performs a decoding process on said OFDM demodulated signal and groups the received signal in word code, Y=(y | 10-25-2012 |
20120275491 | PROCESS FOR PROCESSING MIMO DATA STREAMS IN A 3GPP HSDPA RECEIVER, AND RECEIVER FOR DOING THE SAME - MIMO receiver for processing N data streams received by N antennas for a direct-sequence (DS) spread-spectrum wireless communication system comprising:
| 11-01-2012 |
20120300755 | Process for Slot Synchronization of the P-SCH Sequence in a UMTS Communication System and a Receiver for the Same - A Process for achieving slot synchronization of the P-SCH sequence in a UMTS communication system, involving the step of receiving ( | 11-29-2012 |
20120310573 | METHOD TO ESTIMATE A SIGNAL TO INTERFERENCE PLUS NOISE RATIO BASED ON SELECTION OF THE SAMPLES AND CORRESPONDING PROCESSING SYSTEM - A method to estimate a signal to interference plus noise ratio (SINR) based on selection of the samples and corresponding processing system is provided. The method estimates SINR of an incident signal on a time interval. Samples of the incident signal are received during a time interval. Then, the SINR of the received samples is determined using an average calculation and a variance calculation that includes only a selected set of samples from the received samples. Additionally, the average calculation and/or said variance calculation may be performed by using only the selected set of samples. | 12-06-2012 |
20130107989 | Process for Performing Log-Likelihood-Ratio Clipping in a Soft-Decision Near-ML Detector, and Detector for Doing the Same | 05-02-2013 |
20130163700 | Process for Suppressing Intercarrier Interference in a OFDM Receiver - Process for canceling Intercarrier Interference in a OFDM receiver receiving OFDM blocks in presence of Doppler, comprising the steps of: receiving a OFDM block comprising N samples; applying a FFT for the purpose of generating N frequency domain representations composing the received signal (R); multiplying said received signal (R) by the hermitian value of the channel (H | 06-27-2013 |
20130188681 | Low Complexity MMSE Equalization Process and Equalizer for Doing the Same - Process for equalizing a signal received in a receiver of a Terminal Equipment in a wireless communication system, said process comprises the steps of:—receiving a signal r—applying an iterative algorithm based on a sequence of varying preconditionners in accordance with the following formula: based on a sequence of preconditioning matrices P | 07-25-2013 |
20130196609 | Process for Achieving Spur Mitigation in an Integrated Circuit Including a Wide Band Receiver - A radio transceiver including—an antenna ( | 08-01-2013 |
20130301749 | Precoding Matrix Index Selection Process for a MIMO Receiver Based on a Near-ML Detection, and Apparatus for Doing the Same - A Process for selecting a Precoding Matrix Index (PMI) in a Multiple In Multiple Out (MIMO) receiver of a wireless communications comprising a base station communicating with User Equipments through a downlink and uplink channel, said base station applying a precoding on the transmit symbol vector based on a matrix Pi being selected from a set of predefined matrices and identified by a PMI index computed by said UE and forwarded to said base station via said uplink; said process involving step of: —estimating ( | 11-14-2013 |