| Patent application number | Description | Published |
|---|
| 20080310530 | Wireless Communication Apparatus and Wireless Communication Method - A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part ( | 12-18-2008 |
| 20090017814 | RADIO COMMUNICATION METHOD, RELAY STATION DEVICE, AND RADIO RECEIVER DEVICE - Provided is a radio communication method or the like for making compatible an improvement in error rate characteristics and a reduction in delay. The radio communication method is used in a mobile communication system ( | 01-15-2009 |
| 20090109999 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Provided is a wireless communication apparatus by which the maximum throughput can be obtained while satisfying required reception qualities in multicarrier communication. In the apparatus, a coding section ( | 04-30-2009 |
| 20090111384 | WIRELESS COMMUNICATION TERMINAL APPARATUS AND CQI SELECTING METHOD - A wireless communication terminal apparatus and a CQI selecting method wherein when CQIs are grouped according to their levels and then an upper-order CQI, which is indicative of a group, is to be informed in a longer period, while a lower-order CQI, which identifies a CQI in the group, being to be informed in a shorter period, the CQI is precisely selected. A reception SIR range of 0-4 dB in UE corresponds to a level | 04-30-2009 |
| 20090141648 | MULTICARRIER COMMUNICATION SYSTEM, MULTICARRIER COMMUNICATION APPARATUS AND CQI REPORTING METHOD - Provided is a multicarrier communication apparatus by which information quantity of CQI reporting can be reduced. In the apparatus, each CQI is recorded in a CQI table section ( | 06-04-2009 |
| 20090209261 | BASE STATION APPARATUS, COMMUNICATION TERMINAL APPARATUS, AND MULTICARRIER COMMUNICATION METHOD - A multicarrier communication method capable of improving the frequency utilization efficiency and the throughput of the communication system, while satisfying the QoS. A communication terminal reports the CQI about all of the subchannels included in the bandwidth of a communication channel during a first CQI report, as shown in the upper figure portion. Unlike the first report, during the second and following CQI reports, in which much time is left in terms of the permissible delay time, the communication terminal reports the CQI only about subchannels | 08-20-2009 |
| 20090238123 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Disclosed are a radio transmission device and a radio transmission method capable of containing a plenty of mobile stations for receiving low-rate data and avoiding lowering a system throughput. A group ID assigning unit ( | 09-24-2009 |
| 20090257381 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD USED FOR MULTI-CARRIER COMMUNICATION - Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units ( | 10-15-2009 |
| 20090298523 | RADIO COMMUNICATION BASE STATION APPARATUS, RADIO COMMUNICATION TERMINAL APPARATUS, AND RESOURCE BLOCK ALLOCATION METHOD - Provided is a radio communication base station device capable of obtaining a large multi-user diversity effect while suppressing increase of overhead of a communication signal. The radio communication base station device includes a scheduler ( | 12-03-2009 |
| 20100029285 | RELAY STATION IN MOBILE COMMUNICATION SYSTEM AND RELAY TRANSMISSION CHANNEL SETTING METHOD - Provided is a relay station capable of reducing control information required for allocating a relay transmission channel in a mobile communication system. The relay station ( | 02-04-2010 |
| 20100050044 | RADIO COMMUNICATION APPARATUS AND TEMPORARY BIT INSERTION METHOD - Provided is a radio communication apparatus capable of always obtaining the optimum error rate characteristic when an LDPC code is used for an error-correcting code. In the apparatus, a temporary bit insertion section ( | 02-25-2010 |
| 20100107033 | RADIO COMMUNICATION DEVICE AND PUNCTURING METHOD - Provided is a radio communication device which can minimize degradation of the error ratio characteristic attributed to puncturing when an LDPC code is used as an error correction code. In this device, an LDPC encoding unit ( | 04-29-2010 |
| 20100113007 | WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION APPARATUS, AND METHOD FOR MAPPING RESPONSE SIGNAL IN ARQ - In ARQ where a plurality of mobile stations share and use a single channel for response signals (ACK/HACK signals), a wireless communication base station apparatus can prevent failure of the ARQ control. In this apparatus, a CRC part ( | 05-06-2010 |
| 20100122138 | Radio Communication Device and Radio Communication Method - Provided is a radio communication device which can always obtain an optimal error ratio characteristic in HARQ using the LDPC code as an error correction code. The device includes: a rearrangement unit ( | 05-13-2010 |
| 20100142630 | MULTICARRIER TRANSMITTING APPARATUS, MULTICARRIER RECEIVING APPARATUS, AND THEIR METHODS - A multicarrier transmitting apparatus capable of improving the data symbol error rate characteristic to improve the reception quality. In this apparatus, a replacement position deciding part ( | 06-10-2010 |
| 20100177713 | RADIO COMMUNICATION MOBILE STATION DEVICE AND RESOURCE ALLOCATION METHOD - Provided is a mobile station capable of increasing the use efficiency of a transmission resource. The mobile station ( | 07-15-2010 |
| 20100195571 | Wireless Communication Device and Retransmission Judging Method - It is an object to provide a wireless communication device configured to reduce a communication resource necessary for retransmission, so that data transmission efficiency can be improved. In this device, when an NACK signal is input from an error detecting unit ( | 08-05-2010 |
| 20100241934 | RADIO COMMUNICATION APPARATUS AND ERROR DETECTING ENCODING METHOD - A wireless communication device is provided to make it possible to detect errors with high accuracy while to suppress reduction in throughput in the case that an LDPC (Low-Density Parity-Check) code is used for an error correcting code. In the wireless communication device, a CRC (Cyclic Redundancy Check) coding unit ( | 09-23-2010 |
| 20100251062 | ENCODING METHOD AND TRANSMISSION DEVICE - Provided is an encoding method including: a step of extending a bidiagonal line of a basic matrix of m rows and n columns in the direction of a bidiagonal line according to an encoding ratio 1/k of the spread code (wherein k=3, 4, 5, . . . , k0) set in the LDPC code inspection matrix so as to constitute an extended matrix of the bidiagonal line structure; a step of moving a first non-zero element of the parity bit portion in the (i*m+1)-th row to the (n−m+1)-th column (wherein i=1, 2, . . . , k0−2) leftward along the row; a step of calculating the parity bit of the (n−m+1)-th column by using a first inspection relationship as a start factor; and a step of simultaneously calculating parity bits of a plurality of groups by the recursive encoding method by using the inspection relationship moved leftward to the (n−m+1)-th column. | 09-30-2010 |
| 20100275090 | RADIO COMMUNICATION APPARATUS AND PUNCTURING METHOD - A radio communication apparatus is provided that enables degradation of error rate performance due to puncturing to be minimized when an LDPC code is used as an error correcting code. In this apparatus, a padding bit insertion section | 10-28-2010 |
| 20100325520 | RADIO COMMUNICATION DEVICE AND REPETITION METHOD - Provided is a radio communication device which can obtain the maximum improvement effect of the error rate characteristic by repletion when an LDPC code is used as an error correction code. In this device, an LDPC encoding unit ( | 12-23-2010 |
| 20110069671 | WIRELESS COMMUNICATION MOBILE STATION DEVICE AND DISTRIBUTION AND PLACEMENT METHOD FOR RESOURCE ELEMENTS - Provided is a mobile station which can obtain an equivalent diversity effect in each communication scheme while keeping to an minimum the increase in the circuit scale of a mobile station even when the mobile station is compatible with a plurality of communication schemes. In a mobile station ( | 03-24-2011 |
| 20110096862 | RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - Even when a CCFI error has arisen, there is prevented occurrence of a packet error, which would otherwise be caused during the first receiving operation for reasons of erroneous storage of data into a buffer, and data are prevented from being synthesized while deviated during retransmission. A transmission Circular Buffer sequentially reads encode word data to be transmitted in reverse order from end to top like D | 04-28-2011 |
| 20110161772 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - Disclosed is a wireless communication device capable of always obtaining the optimum error rate characteristic and of keeping the number of retransmissions to a minimum for IR-based HARQ which uses LDPC encoding in the error correction encoding. With the device, an RV control unit ( | 06-30-2011 |
| 20110165835 | RADIO COMMUNICATION METHOD, RELAY STATION DEVICE, AND RADIO RECEIVER DEVICE - Provided is a radio communication method or the like for making compatible an improvement in error rate characteristics and a reduction in delay. The radio communication method is used in a mobile communication system including a mobile station, a relay station and a base station. A transmitted signal containing a signal addressed to the base station is transmitted at first from the mobile station to the relay station. A non-reproduced relay signal obtained in the relay station from the transmitted signal is transmitted from the relay station to the base station. On the basis of the reception result of the non-reproduced relay signal at the base station, a re-transmission request of the transmitted signal is transmitted from the base station. A reproduced relay signal, as obtained from the transmitted signal in the relay station, is transmitted from the relay station to the base station in accordance with the re-transmission request transmitted from the base station. | 07-07-2011 |
| 20110167326 | RELAY APPARATUS AND WIRELESS COMMUNICATION SYSTEM - A relay station and a wireless communication system wherein novel retransmission control is achieved in cases when a TTI-bundling technique and a relay technique are used in communication between a terminal and a base station. A relay station ( | 07-07-2011 |
