Patent application number | Description | Published |
20100008441 | MULTIANTENNA RECEIVING DEVICE - A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is comprised of soft judgement output units ( | 01-14-2010 |
20100041413 | RADIO BASE STATION DEVICE, RADIO TERMINAL DEVICE, AND RADIO COMMUNICATION SYSTEM - It is possible to provide a radio communication system, a radio base station device, and a radio terminal device capable of reducing the power consumption in a radio terminal device without thinning pilot signals used for measuring upstream line quality. In the radio base station device ( | 02-18-2010 |
20100070828 | TRANSMISSION METHOD, TRANSMITTER APPARATUS AND RECEPTION METHOD - A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts ( | 03-18-2010 |
20100075693 | BASE STATION DEVICE AND RADIO COMMUNICATION DEVICE - Provided is a base station device capable of suppressing power consumption of a radio communication device and transmitting a pilot signal for measuring an uplink channel quality in a high frequency use efficiency. The base station device ( | 03-25-2010 |
20100077276 | TRANSMITTING DEVICE, RECEIVING DEVICE, ENCODER, AND ENCODING METHOD - In such a relationship between information transmitted by a primary BCH, for example, and information transmitted by a non-primary BCH as a case of the transmission for a first information sequence that is easy to keep receiving quality and a second information sequence that is difficult to keep receiving quality, a transmitting device and a receiving device are disclosed for making it possible to improve an error rate of the second information sequence. In the devices, an encoder ( | 03-25-2010 |
20100172421 | MIMO RECEIVER AND MIMO COMMUNICATION SYSTEM - An MIMO receiver and MIMO communication system which can have a small hardware scale even if the number of antennas used for MIMO communication. In a radio communication device ( | 07-08-2010 |
20100177845 | MULTI-ANTENNA TRANSMISSION DEVICE AND MULTI-ANTENNA TRANSMISSION METHOD - Provided is a multi-antenna transmission device which can improve the reception quality when performing a repeated detection using a software value at the reception device side in a spatial multiplex MIMO system. A transmission device ( | 07-15-2010 |
20100180176 | ENCODING METHOD, ENCODER, AND TRANSMITTER - An encoding method by which an encoding speed is improved is disclosed. An encoder ( | 07-15-2010 |
20100192047 | TRANSMITTING DEVICE AND TRANSMITTING METHOD - A transmitting device and method enabling improvement of the reception quality on the receiving side when the LDPC-CC (Low-Density Parity-Check Convolutional Codes) encoding is used. The transmitting device ( | 07-29-2010 |
20100199153 | LOW-DENSITY PARITY CHECK CONVOLUTION CODE (LDPC-CC) ENCODER AND LDPC-CC DECODER - It is possible to provide and an LDPC-CC (Low-Density Parity-Check Convolution Codes) encoder and an LDPC-CC decoder which performs an error correction encoding and decoding while reducing the amount of a termination sequence required for encoding/decoding the LDPC-CC encoding/decoding and suppressing degradation of the transmission efficiency. The LDPC-CC encoder ( | 08-05-2010 |
20100218066 | ENCODING DEVICE AND DECODING DEVICE - Disclosed are an encoding device and a decoding device which can effectively reduce the decoding failure frequency in LDPC encoding/decoding. A loss correction encoding device ( | 08-26-2010 |
20110041044 | ENCODER, DECODER, AND ENCODING METHOD - An encoder and decoder using LDPC-CC (Low Density Parity Check-Convolutional Codes) is disclosed. The encoder exhibits encoding rates realized with a small circuit-scale and a high data reception quality. In the encoder ( | 02-17-2011 |
20110087948 | LOSS CORRECTION ENCODING DEVICE AND LOSS CORRECTION ENCODING METHOD - A loss correction encoding device having an improved capability of loss correction using LDPC-CC is disclosed. In the loss correction encoding device ( | 04-14-2011 |
20110113300 | DECODING METHOD, DECODING DEVICE, INTERLEAVING METHOD, AND TRANSMITTER - A decoding device allowing a high-speed decoding operation. In a decoding section ( | 05-12-2011 |
20110138258 | ENCODING DEVICE AND DECODING DEVICE - An encoding device and decoding device for improving an error floor while taking advantage of the features of a convolutional code capable of encoding/decoding an information sequence with an arbitrary length are disclosed. An error correction encoding section ( | 06-09-2011 |
20110214037 | CODING DEVICE, DECODING DEVICE, CODING METHOD, DECODING METHOD, AND COMMUNICATION SYSTEM - Positions holding different bit values between a first code word, which is obtained by coding an information bit sequence based on a coding method utilizing quasi-cyclic codes, and a second code word, which has the close Hamming distance from the first code word and satisfies a parity check of the coding method, are identified. Thereafter, a code word is generated by inserting bit values known to the transmitter and receiver into the identified positions of the information bit sequence and coding the information bit sequence. Upon reception of a signal based on the generated code word, the receiver judges whether known bit values held by corresponding positions in a code word obtained by decoding the received signal are the same as preset bit values. If the judgment result is negative, the code word based on the received signal is judges as erroneous even when it satisfies the parity check. | 09-01-2011 |
20120063505 | POWER TRANSMITTER AND WIRELESS POWER TRANSMISSION SYSTEM - A power transmitter | 03-15-2012 |
20120128105 | MULTIANTENNA RECEIVING DEVICE - A multiantenna receiving device is provided to make it possible to cope with both improvement in error rate characteristic and simplification in structure. The multiantenna receiving device is comprised of soft judgement output units for carrying out a soft judgement of a modulation signal in accordance with signal point distances between a plurality of candidate signal points with respect to a plurality of multiplexed modulation signals and a receiving signal, decoding units for obtaining digital data of the modulation signals by using the judged results obtained by the soft judgement output units, and signal point decreasing units for decreasing the number of the candidate signal points used in the soft judgement output units by recursively using a part of the digital data except self-modulation signals obtained by the decoding units. | 05-24-2012 |
20130145228 | ENCODING METHOD - An encoder and decoder using LDPC-CC (Low Density Parity Check-Convolutional Codes) is disclosed. The encoder exhibits encoding rates realized with a small circuit-scale and a high data reception quality. In the encoder ( | 06-06-2013 |
20130159816 | TRANSMITTING METHOD, RECEIVING METHOD, RECEIVING APPARATUS AND TRANSMITTING APPARATUS - A transmitter apparatus wherein a simple structure is used to successfully suppress the degradation of error rate performance that otherwise would be caused by fading or the like. There are included encoding parts ( | 06-20-2013 |
20130254638 | ENCODER, DECODER, TRANSMITTING APPARATUS, AND RECEIVING APPARATUS - There is provided an encoder that provides a termination sequence with a simple structure for LDPC-CC encoding and reduces an amount of the termination sequence transmitted to a transmission line. The LDPC-CC encoder connects a first encoder to a second encoder to perform encoding and thereby carry out LDPC-CC encoding, the first encoder performing encoding based on an partial parity check matrix for information bits obtained by extracting a sequence corresponding to the information bits in a parity check matrix and the second encoder performing encoding based on a partial parity check matrix for parity bits obtained by extracting a sequence corresponding to the parity bits in the parity check matrix. A termination sequence generator generates a termination sequence including the same number of bits as the memory length of the first encoder and provides the generated termination sequence as an input sequence. | 09-26-2013 |
20130262955 | DECODER, RECEIVING APPARATUS, DECODING METHOD, AND RECEIVING METHOD - Disclosed are an encoder, a transmission device, and an encoding method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block encoding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code. | 10-03-2013 |
20130346832 | TRANSMISSION APPARATUS AND RECEPTION APPARATUS - A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges(interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged(interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. | 12-26-2013 |
20140032988 | COMMUNICATION APPARATUS, TERMINAL APPARATUS AND COMMUNICATION METHOD - A loss correction encoding device having an improved capability of loss correction using LDPC-CC includes a rearranging unit that rearranges information data contained in n information packets according to the constraint length Kmax and the encoding rate (q−1)/q of a check polynomial of the loss correction code used in a loss correction encoding unit. Specifically, the rearranging unit rearranges the information data in such a way that continuous Kmax×(q−1) pieces of information data after rearrangement are contained in different information packets. The rearranging unit distributes the information data to information blocks from n information packets, where n satisfies the formula Kmax×(q−1)≦n. | 01-30-2014 |
20140053048 | ENCODER, TRANSMITTING APPARATUS, CODING METHOD AND TRANSMISSION METHOD - Disclosed are an encoder, a transmitting device, a coding method and a transmission method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block coding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code. | 02-20-2014 |
20140068370 | CONVOLUTIONAL CODE ENCODING METHOD - An encoder and decoder using LDPC-CC (Low Density Parity Check-Convolutional Codes) is disclosed. In the encoder ( | 03-06-2014 |
20140215287 | DECODER, RECEPTION APPARATUS, DECODING METHOD, AND RECEPTION METHOD - Disclosed are an encoder, a transmitting device, a coding method and a transmission method with which the transmission amount is reduced and a deterioration in transmission efficiency is suppressed while improving reception quality when QC-LDPC or a like block coding is used. A puncture pattern setting unit searches for a puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of a sub block matrix that forms a check matrix (H) of a QC-LDPC code, and a puncture unit (data reduction unit) switches the puncture pattern for each integral multiple of the number of columns or for each divisor of the number of columns of the sub block matrix that forms the check matrix of the QC-LDPC code. | 07-31-2014 |
20140325304 | ENCODING METHOD, ENCODER, AND DECODER - A low-density parity check convolution code (LDPC-CC) is made, and a signal sequence is sent after being subjected to an error-correcting encodement using the low-density parity check convolution code. In this case, a low-density parity check code of a time-variant period (3g) is created by linear operations of first to 3g-th (letter g designates a positive integer) parity check polynomials and input data. | 10-30-2014 |
20150039974 | TRANSMISSION APPARATUS AND ASSOCIATED METHOD OF ENCODING TRANSMISSION DATA - An encoder and decoder using LDPC-CC (Low Density Parity Check—Convolutional Codes) is disclosed. In the encoder ( | 02-05-2015 |