| Patent application number | Description | Published |
|---|
| 20080279210 | Communication Apparatus - A communication apparatus exhibiting improved certainty and stability in communication. In a wireless terminal ( | 11-13-2008 |
| 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 |
| 20090028065 | RADIO TRANSMISSION DEVICE, AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit ( | 01-29-2009 |
| 20090028262 | RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION DEVICE - There are disclosed a radio communication device and others capable of generating in a short time a secret key common to a base station and a mobile station in a radio communication system using the MIMO technique and starting the encrypted communication at an early stage. In this device, in ST | 01-29-2009 |
| 20090036135 | MULTI-CARRIER COMMUNICATION DEVICE AND MULTI-CARRIER COMMUNICATION METHOD - There is provided a multi-carrier communication method capable of preventing lowering of a throughput of another mobile device accompanying allocation of a sub-carrier for a new mobile station device. This multi-carrier communication method can acquire reception quality information for one of the sub-carriers already allocated in an MS ( | 02-05-2009 |
| 20090040973 | RADIO COMMUNICATION SYSTEM, RADIO TRANSMISSION DEVICE, AND RACH TRANSMISSION METHOD - Disclosed are a radio communication system, a radio transmission device, a RACH transmission method capable of reducing the important information conflict probability and improve the communication system throughput in a channel transmitted at a random timing such as RACH. In a frame configuration used by the communication system, the number of slots of RACH is reduced by one and the resource for the slot is equally allocated as a resource for a pilot/UE-ID of other slot. This increases the resource amount of the pilot/UE-ID. Furthermore, the resource of the pilot/UE-ID is divided into a plurality of sub slots, which are allocated as resource blocks for respective mobile stations. | 02-12-2009 |
| 20090046604 | WIRELESS COMMUNICATION METHOD, BASE STATION APPARATUS AND MOBILE STATION APPARATUS - A wireless communication method for improving the transmission efficiency in an upstream communication in OFDMA-TDD system or the like. An upstream transmission timing control part ( | 02-19-2009 |
| 20090046694 | RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD - Provided is a radio transmission device, which is enabled to improve a reception quality by improving the channel estimation precision of specific data such as control data. In this device, a mapping control unit ( | 02-19-2009 |
| 20090047898 | COMMUNICATION SYSTEM, COMMUNICATION RELAY APPARATUS, AND COMMUNICATION RELAY METHOD - A communication relay method and others are disclosed in which even when the channel quality varies, the communication data from MS can be relayed without degrading the throughput of the communication system. In this method, the channel quality between RS and BS is estimated (ST | 02-19-2009 |
| 20090092072 | COMMUNICATION RELAY APPARATUS AND COMMUNICATION RELAY METHOD - A communication relay apparatus wherein the error rate characteristic of a relay destination is improved to raise the throughput, while reducing the given interference power to prevent the reduction of the throughput of the whole communication system. In the apparatus, a signal addressed to a base station is received (ST | 04-09-2009 |
| 20090092118 | INTERLEAVE APPARATUS AND INTERLEAVE METHOD - An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave apparatus, a data holding part ( | 04-09-2009 |
| 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 |
| 20090122752 | METHOD FOR SETTING SUBBANDS IN MULTICARRIER COMMUNICATION, AND RADIO COMMUNICATION BASE STATION APPARATUS - A wireless communication base station apparatus wherein when a frequency scheduling transmission and a frequency diversity transmission are performed in a multicarrier communication at the same time, the adaptive control of a channel for performing the frequency scheduling transmission can be prevented from being complicated. In this apparatus, a modulating part ( | 05-14-2009 |
| 20090135924 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD IN MULTI-CARRIER COMMUNICATIONS - Provided is a radio communication base station device capable of acquiring both a multi-user diversity effect and a frequency diversity effect simultaneously in multi-carrier communications. In this devices modulation units ( | 05-28-2009 |
| 20090137230 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - There is provided a wireless transmitting device, the reception quality of which can be improved by effectively using the cyclic prefix. In the wireless transmitting device, a data mapping determination unit ( | 05-28-2009 |
| 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 |
| 20090147688 | RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND RADIO COMMUNICATION METHOD - It is possible to provide a radio communication terminal device, a radio communication base station device, and a radio communication method capable of improving the resource use efficiency and the throughput in synchronous random access. A resource control unit ( | 06-11-2009 |
| 20090161650 | RADIO COMMUNICATION MOBILE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a mobile station capable of effectively reporting control information in RACH. In the mobile station, a signature selection unit ( | 06-25-2009 |
| 20090161789 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - Disclosed are a radio sending device and a radio sending method for improving a throughput while keeping a receiving quality. In this radio sending device, an MCS switching control unit ( | 06-25-2009 |
| 20090185638 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method capable of improving downlink and uplink throughput even when performing dynamic symbol allocation. In the device and the method, BS and MS share a table correlating a basic TF as a combination of parameters such as TB size used for transmitting only user data, an allocation RB quantity, a modulation method, and an encoding ratio, with a derived TF having user data of different TB size by combining L1/L2 control information. Even when multiplexing L1/L2 control information, Index corresponding to the basic TF is reported from BS to MS. | 07-23-2009 |
| 20090196270 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio transmission device and a radio transmission method capable of improving resource use efficiency without increasing or decreasing the number of Signatures. The device and the method use a Signature table having Access types, DL CQI, and Signatures uniquely correlated to one another. In this Signature table, the DL CQI level is set for each Access type in accordance with the data amount transmitted/received before a data communication start after a transmission of RACH. When the Access type is IDLE, the data amount is greater as compared to other Access types and the DL CQI is set to level | 08-06-2009 |
| 20090203324 | RADIO COMMUNICATION SYSTEM, INTERLEAVE PATTERN CONTROL DEVICE, AND INTERLEAVE PATTERN CONTROL METHOD - Disclosed is an interleave pattern control device which can reduce a reception error percentage when an interleave pattern of a repetition symbol is controlled. In an interleave selecting unit ( | 08-13-2009 |
| 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 |
| 20090213813 | RADIO COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, AND RACH TRANSMISSION METHOD - Provided is a mobile station device capable of performing RACH transmission with a small amount of resources. In this device, a RACH generating unit ( | 08-27-2009 |
| 20090239484 | RADIO RECEIVER APPARATUS AND RADIO TRANSMITTER APPARATUS - A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part ( | 09-24-2009 |
| 20090245413 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein a guard interval having a variable length is used to allow a radio receiving apparatus to precisely and easily obtain a symbol synchronization. In the radio transmitting apparatus, a GI adding part ( | 10-01-2009 |
| 20090262653 | WIRELESS COMMUNICATION MOBILE STATION DEVICE, WIRELESS COMMUNICATION BASE STATION DEVICE AND CQI REPORT METHOD - Provided is a wireless communication mobile station device by which a throughput can be improved in multicarrier communication. In the device, a group control section ( | 10-22-2009 |
| 20090285327 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS, AND PILOT GENERATING METHOD - A radio transmitter and so forth capable of improving the precision of frequency domain equalization while transmitting a longer pilot sequence. In a series of pilot blocks generated from one pilot sequence with the same length as a data sequence such as a CAZAC sequence, the transmitter defines the rear end of each pilot block as the cyclic prefix of the next pilot block and defines the rear end of the last pilot block as the cyclic prefix of the first pilot block. | 11-19-2009 |
| 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 |
| 20090305690 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Disclosed is a radio transmission device capable of improving a transmission stream error resistance and preventing lowering of a throughput of a communication system. In this device, according to the feedback information from the radio reception device, a repetition control unit ( | 12-10-2009 |
| 20090323641 | RADIO COMMUNICATION MOBILE STATION DEVICE AND MCS SELECTION METHOD - Provided is a radio communication mobile station device capable of preventing a transmission delay when a transmission data amount is increased in a radio communication system where persistent scheduling is performed. In this device, an MCS selection unit ( | 12-31-2009 |
| 20090325513 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus wherein the performance can be prevented from degrading due to the affection of a frequency offset, while the sequence length of Zadoff-Chu sequence (ZC sequence) being kept long. In this wireless communication apparatus, a ZC sequence generating part ( | 12-31-2009 |
| 20100002671 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1. A signature selecting part ( | 01-07-2010 |
| 20100002804 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio transmission device and a radio transmission method which can avoid degradation of a channel estimation accuracy using a reference signal formed by a ZC sequence even when the RS transmission band of a local cell is different from that of an adjacent cell. A mobile station decides a cyclic shift sequence corresponding to RB allocation information from an RS table which correlates different frequency bandwidths from a reference point of respective transmission bands to a spectrum start number of the cyclic shift sequence so as to satisfy a particular relationship based on the sequence length and transmits the decided cyclic shift sequence as RS to a base station. The base station uses the same RS table as the RS table of the mobile station and performs correlation calculation of the RS transmitted from the mobile station, thereby performing channel estimation. | 01-07-2010 |
| 20100014478 | Radio Communication Terminal Device, Radio Communication Base Station Device, and Radio Resource Allocation Method - Disclosed are a radio communication terminal device, a radio communication base station device, and a radio resource allocation method which can reduce radio resource fragmentation while suppressing increase of the signaling quantity in data retransmission. In ST | 01-21-2010 |
| 20100027484 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Disclosed is a radio transmission device and a radio transmission method which reduces the RACH conflict ratio and improve the RACH detection characteristic. When the device and the method are used: as the number of signature numbers allocated for UE by the network side increases, the condition for allocating a signature by UE itself is mitigated and an expectation value which is a statistic average value of the RA quantity using the signature allocated by UE for itself is decreased; and as the number of signature numbers allocated for UE by the network side decreases, the condition for allocating a signature by UE itself is limited and an expectation value of the RA quantity using the signature allocated by UE for itself is increased. | 02-04-2010 |
| 20100039998 | SEQUENCE ALLOCATING METHOD AND SEQUENCE ALLOCATING APPARATUS - A sequence allocating method and a sequence allocating apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. According to these method and apparatus, in ST | 02-18-2010 |
| 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 |
| 20100054188 | Wireless Communication Base Station Apparatus and Wireless Communication Method - A wireless communication base station apparatus capable of suppressing the waste of a signaling source in retransmittal signaling of group scheduling. In this apparatus, a multiplexing part ( | 03-04-2010 |
| 20100086082 | RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND RADIO COMMUNICATION METHOD - Disclosed are a radio communication terminal device, a radio communication base station device, and a radio communication method which can prevent input of an interference wave peak into a detection window of a cyclic shift sequence allocated to a local cell and improve the channel estimation accuracy in a base station. A frequency serving as a reference is set for a transmission band width of all the cells and respective terminals in which frame synchronization is established. By using the frequency as a reference point, a phase rotation addition unit ( | 04-08-2010 |
| 20100099423 | SEQUENCE ALLOCATION METHOD IN MOBILE COMMUNICATION SYSTEM - Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell. | 04-22-2010 |
| 20100111142 | Radio Transmission Device and Radio Transmission Method - Disclosed are a radio transmission device and a radio transmission method which can reduce a processing amount or a memory amount while maintaining the randomizing effect of other cell interference. When using as a reference signal, a ZC sequence of the sequence length uniquely correlated to a transmission bandwidth of a reference signal, as the transmission bandwidth becomes smaller and the sequence length of the ZC sequence becomes shorter, the sequence is switched at a shorter time interval and as the transmission bandwidth becomes greater and the sequence length of the ZC sequence becomes longer, the switching is performed at a longer time interval. Thus, a reference signal is generated by using the ZC sequence in accordance with the timing into which the reference signal transmission bandwidth and the sequence are switched. | 05-06-2010 |
| 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 |
| 20100113046 | Sequence Report Method and Sequence Report Device - Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS. | 05-06-2010 |
| 20100118919 | WIRELESS COMMUNICATION APPARATUS AND RESPONSE SIGNAL SPREADING METHOD - A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part ( | 05-13-2010 |
| 20100128686 | RADIO COMMUNICATION BASE STATION DEVICE AND RESOURCE SHARING METHOD - A radio communication base station device capable of reducing the downlink resources required for ACK/NACK channels to improve data transmission efficiency. In this device, an allocation control channel allocating section ( | 05-27-2010 |
| 20100135359 | RADIO COMMUNICATION DEVICE AND CONSTELLATION CONTROL METHOD - Provided is a radio communication device which can make ACK reception quality and NACK reception quality to be equal to each other. The device includes: a scrambling unit ( | 06-03-2010 |
| 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 |
| 20100150056 | WIRELESS COMMUNICATION MOBILE STATION APPARATUS AND RACH DATA TRANSMITTING METHOD - A mobile station capable of reducing the probability of collision of RACH data in a random access. In this mobile station, a moving speed determining part ( | 06-17-2010 |
| 20100173642 | Sequence Allocating Method, Transmitting Method and Wireless Mobile Station Device - It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST | 07-08-2010 |
| 20100183047 | WIRELESS COMMUNICATION APPARATUS AND RESPONSE SIGNAL SPREADING METHOD - A wireless communication apparatus capable of minimizing the degradation of the separation characteristic of response signals to be code-multiplexed. In the apparatus, a control part ( | 07-22-2010 |
| 20100188984 | RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD - Provided is a communication device, which is enabled to improve the throughput of a communication system by reducing the difference of a transmission power between an SCCH and an SDCH thereby to satisfy the required quality of a PAPR. In this device, an MCS selection unit ( | 07-29-2010 |
| 20100195637 | RADIO COMMUNICATION DEVICE AND SEQUENCE LENGTH ADJUSTING METHOD - Provided is a radio communication device which can prevent generation of mutual correlation peak between ZC sequences and reduce degradation of BLER characteristic of a CS-ZC sequence. In this device, a sequence length adjustment unit ( | 08-05-2010 |
| 20100195700 | Cyclic Shift Sequence Generation Method, Radio Communication Terminal Device, and Radio Communication Base Station Device - Provided is a cyclic shift sequence generation method which can prevent coming of an interference wave into a desired wave detection window even if a cyclic shift sequence has a high mutual correlation in different bandwidths, thereby improving a channel estimation accuracy in a base station. In this method, a cyclic shift sequence number to be allocated to a cell is decided in advance. Moreover, when the cyclic shift amount between cyclic shift sequences allocated in cells is Δ | 08-05-2010 |
| 20100208664 | WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION APPARATUS AND PILOT SIGNAL SEQUENCE ALLOCATING METHOD IN MULTICARRIER COMMUNICATION - A wireless communication apparatus wherein even if the number of sectors or cells is increased in a multicarrier communication, the orthogonality between the pilot signal sequences between adjacent sectors or cells can be prevented from collapsing due to a frequency selectivity fading, thereby improving the reception characteristic. In this apparatus, modulating parts ( | 08-19-2010 |
| 20100210274 | Sequence Allocating Method and Wireless Mobile Station Device - It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups and between same sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length (Nb) and a standard sequence number (rb) in a step (ST | 08-19-2010 |
| 20100220806 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS AND WIRELESS COMMUNICATION METHOD - A radio transmitting apparatus, a radio receiving apparatus and a wireless communication method wherein the channel estimation precision can be improved without increasing the number of pilot signals when two different time-frequency multiplexed physical channel structures are used in an OFDM wireless communication system. A multiplexing part ( | 09-02-2010 |
| 20100222093 | RADIO COMMUNICATION METHOD AND RADIO COMMUNICATION TERMINAL ACCOMMODATING APPARATUS - A technique capable of improving the communication throughput while maintaining the interchangeability with a radio communication system or radio communication method employing carrier sense in a conventional multiple access system is disclosed and, on the basis of this technique, a radio communication terminal accommodating apparatus determines the allocation order of communication right permitting the occupation of a radio transmission medium with respect to each of a plurality of radio transmission terminals and transmits a multiple-polling signal | 09-02-2010 |
| 20100232284 | RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD - A radio transmitting apparatus and a radio transmitting method wherein the throughput is improved and a fast initial access processing including an RA burst is accomplished. According to these apparatus and method, a signature table storing part ( | 09-16-2010 |
| 20100232378 | RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION TERMINAL DEVICE, AND RESPONSE SIGNAL ALLOCATION METHOD - It is possible to provide a radio communication base station device, a radio communication terminal device, and a response signal allocation method which perform D-ACK and P-ACK resource allocation while maintaining a high use efficiency of the upstream line control channel of PUCCH or the like. When a plurality of CCE are allocated upon PDCCH transmission, PUCCH resources corresponding to odd CCE numbers are allocated for D-ACK and PUCCH resources corresponding to even CCE numbers are allocated for P-ACK among a plurality of CCE numbers which can be used. | 09-16-2010 |
| 20100232473 | RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL SPREADING METHOD - A radio communication device in which the waste of physical resources involved in the repetition transmission of a response signal can be minimized with no restriction on the scheduling of a base station imposed or with the restriction on the scheduling thereof minimized. In this device, a control unit ( | 09-16-2010 |
| 20100232542 | RADIO TRANSMITTING APPARATUS AND MULTICARRIER SIGNAL GENERATING METHOD - A base station allowing mobile stations to efficiently remove interference signals. In this base station ( | 09-16-2010 |
| 20100246559 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION MOBILE STATION APPARATUS - A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section ( | 09-30-2010 |
| 20100246708 | RADIO COMMUNICATION APPARATUS, RADIO COMMUNICATION METHOD, AND RADIO COMMUNICATION SYSTEM - A radio communication apparatus, a radio communication method, and a radio communication system, which are capable of improving receiving reliability of predetermined bits such as bits having a high degree of importance, and the like, are provided. A code length L is decided based on the modulation system and the coding rate being specified, and the bit length of S | 09-30-2010 |
| 20100254434 | RADIO COMMUNICATION DEVICE AND SEQUENCE CONTROL METHOD - Provided is a radio communication device which can reduce the affect of inter-cell interference using a small reception process amount. The radio communication device includes a sequence number setting unit ( | 10-07-2010 |
| 20100260116 | RADIO RESOURCE MANAGEMENT DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, AND RADIO RESOURCE MANAGEMENT METHOD - It is possible to provide a radio resource management device, a radio communication base station device, and a radio resource management method which can reduce a reply signal inter-cell interference and suppress decrease of the number of ACK/NACK which can be transmitted. When a plurality of CCE are allocated for PDCCH transmission, among usable CCE, the CCE number used between adjacent cells is differentiated. More specifically, a different RN satisfying RN=(usable CCE number m) mod N is allocated to the adjacent cell. A mobile station performs ACK/NACK transmission by using a PUCCH resource corresponding to the CCE number which becomes the allocated RN. | 10-14-2010 |
| 20100265814 | SEQUENTIAL TRANSMISSION METHOD - Provided is a sequential allocation method which can reduce mutual correlation between different sequential groups while maintaining a number of sequential groups. ST | 10-21-2010 |
| 20100272022 | SEQUENCE HOPPING METHOD, WIRELESS COMMUNICATION TERMINAL APPARATUS AND WIRELESS COMMUNICATION BASE STATION APPARATUS - A wireless communication terminal apparatus wherein the occurrences of inter-sequence interferences between a reference signal preceding a sequence hopping and a reference signal following the sequence hopping can be reduced so as to improve the randomizing effect achieved by the sequence hopping. In this apparatus, a sequence number deciding part ( | 10-28-2010 |
| 20100272028 | WIRELESS TRANSMITTER AND WIRELESS TRANSMITTING METHOD - A wireless transmitter and a wireless transmitting method in a communication system are provided with features in which a contention based channel and a scheduled channel are time-division-multiplexed, influence of interference between the channels is reduced while receiving quality is improved even if a delay in the contention based channel takes place. In the device and method, a heading portion MCS of the scheduled channel following the contention based channel is set to be more tolerant of errors (for example, QPSK, R=⅓) than the other portion MCS (for example, 16 QAM, R=⅓) and transmission is carried out. | 10-28-2010 |
| 20100279603 | RADIO COMMUNICATION APPARATUS AND RELAY TRANSMISSION METHOD - A relay transmission method for communication between a base station and a mobile station via a relay station while producing a diversity effect even if the relay station detects an error in the relay signal. A decoding section ( | 11-04-2010 |
| 20100284394 | RADIO COMMUNICATION TERMINAL DEVICE AND RADIO TRANSMISSION METHOD - It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit ( | 11-11-2010 |
| 20100284487 | WIRELESS TRANSMISSION DEVICE AND WIRELESS TRANSMISSION METHOD - A wireless transmission method for improving the reception characteristic of a preamble. The wireless transmission method allows the patterns of subcarriers (transmitting antenna Tx | 11-11-2010 |
| 20100285755 | SEQUENCE NUMBER ESTABLISHING METHOD, WIRELESS COMMUNICATION TERMINAL APPARATUS AND WIRELESS COMMUNICATION BASE STATION APPARATUS - A wireless communication terminal apparatus wherein the occurrences of inter-sequence interferences between cells can be reduced. In this apparatus, a sequence number deciding part ( | 11-11-2010 |
| 20100285805 | MULTI-CARRIER COMMUNICATION DEVICE AND MULTI-CARRIER COMMUNICATION METHOD - There is provided a multi-carrier communication method capable of preventing lowering of a throughput of another mobile device accompanying allocation of a sub-carrier for a new mobile station device. This multi-carrier communication method can acquire reception quality information for one of the sub-carriers already allocated in an MS ( | 11-11-2010 |
| 20100290543 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS, AND DATA PLACING METHOD - A radio transmitting apparatus wherein when both a first data and a second data, which has a greater importance than the first data, are placed in a single block, the BER characteristic of the second data can be well maintained. In this apparatus, a modulating part ( | 11-18-2010 |
| 20100296384 | WIRELESS COMMUNICATION APPARATUS AND RESPONSE SIGNAL SPREADING METHOD - A wireless communication apparatus capable of minimizing the degradation in separation characteristic of a code multiplexed response signal. In this apparatus, a control part ( | 11-25-2010 |
| 20100296452 | RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL DIFFUSION METHOD - Provided is a radio communication device which can suppress inter-code interference between an ACK/NACK signal and a CQI signal which are code-multiplexed. In this device, a diffusion unit ( | 11-25-2010 |
| 20100302996 | WIRELESS TRANSMITTING APPARATUS AND WIRELESS TRANSMITTING METHOD - There are provided a wireless transmitting apparatus and a wireless transmission method that enable reduction of transmission delay of a system by enhancing receiving performance achieved during transmission of network-coded data. A decoding section | 12-02-2010 |
| 20100311458 | RADIO COMMUNICATION DEVICE AND CONSTELLATION CONTROL METHOD - Provided is a radio communication device which can make ACK reception quality and NACK reception quality to be equal to each other. The device includes: a scrambling unit ( | 12-09-2010 |
| 20110002321 | RADIO TRANSMISSION DEVICE, AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method, which prevent the deterioration of a preamble detecting performance while reducing the collision probability of a RACH. In this radio transmission device, a Signature table storage unit ( | 01-06-2011 |
| 20110002415 | WIRELESS COMMUNICATION MOBILE STATION DEVICE AND METHOD FOR USING PRECODING MATRIX - Provided is a wireless communication mobile station device capable of suppressing an increase in an SRS resource even when the mobile station is provided with a plurality of antennas. In the device, a weighting section ( | 01-06-2011 |
| 20110009052 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM - There are provided a wireless communication apparatus, a wireless communication method, and a wireless communication system capable of selectively utilizing the advantages of both centralized control and distributed control while a time needed for cell searching is suppressed. FIG. | 01-13-2011 |
| 20110019636 | WIRELESS COMMUNICATION BASE STATION DEVICE AND WIRELESS COMMUNICATION METHOD - Provided is a wireless communication base station device that can avert PHICH collisions between mobile stations when using a frequency hopping retransmission method in combination with a PHICH grouping method. A base station ( | 01-27-2011 |
| 20110044412 | MULTI-ANTENNA RECEPTION APPARATUS, MULTI-ANTENNA RECEPTION METHOD, MULTI-ANTENNA TRANSMISSION APPARATUS AND MULTI-ANTENNA COMMUNICATION SYSTEM - Soft decision sections ( | 02-24-2011 |
| 20110064120 | BASE STATION APPARATUS AND RESPONSE SIGNAL RECEIVING METHOD - A wireless communication apparatus capable of minimizing the degradation of the separation characteristic of response signals to be code-multiplexed. In the apparatus, a control part ( | 03-17-2011 |
| 20110075760 | RADIO TRANSMISSION DEVICE AND RADIO COMMUNICATION METHOD - It is possible to provide a radio transmission device and a radio communication method which can reduce inter-sequence interference and reduce the circuit size and the calculation amount even when RS is transmitted with different transmission bandwidths. Sequence length decision units ( | 03-31-2011 |
| 20110080966 | BASE STATION APPARATUS, SEQUENCE ASSIGNING METHOD AND REFERENCE SIGNAL GENERATING METHOD - Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method divides R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequence is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell. | 04-07-2011 |
| 20110081929 | BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit ( | 04-07-2011 |
| 20110096852 | RADIO RECEPTION DEVICE, RADIO TRANSMISSION DEVICE, AND FEEDBACK METHOD - Provided are a radio reception device, a radio transmission device, and a feedback method which can uniformly guarantee the feedback accuracy of an average CQI even when the transmission band width is different. A channel estimation unit ( | 04-28-2011 |
| 20110096928 | Wireless Communication Base Station Device, Wireless Communication Mobile Station Device, and Method for Scrambling Response Signal in ARQ - A wireless communication base station device which does not fail in ARQ control even when a mobile station fails to receive allocation information and collision of the uplink data transmitted from mobile stations occurs. In the device, a CRC unit ( | 04-28-2011 |
| 20110119548 | RADIO TRANSMISSION DEVICE AND RETRANSMISSION CONTROL METHOD - Provided is a radio transmission device which can simultaneously reduce: a radio resource consumption amount required for signaling to report band allocation information and a HARQ operation mode, and a transmission packet collision ratio accompanying a reception error of the band allocation information. The radio transmission device includes a transmission control unit ( | 05-19-2011 |
| 20110134874 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL DEVICE, AND CHANNEL ALLOCATION METHOD - Disclosed is a base station in which the frequency usage efficiency can be improved when the communication bandwidths are asymmetric in the uplink line and the downlink line. A base station ( | 06-09-2011 |
| 20110158195 | WIRELESS COMMUNICATION BASE STATION DEVICE AND CQI REPORT METHOD - Provided is a wireless communication mobile station device by which a throughput can be improved in multicarrier communication. In the device, a group control section ( | 06-30-2011 |
| 20110158290 | RADIO COMMUNICATION DEVICE AND CONSTELLATION CONTROL METHOD - Provided is a radio communication device which can make Acknowledgement (ACK) reception quality and Negative Acknowledgement (NACK) reception quality to be equal to each other. The device includes: a scrambling unit ( | 06-30-2011 |
| 20110164519 | POWER HEAD ROOM REPORTING METHOD AND MOBILE STATION DEVICE - Disclosed are a control signal transmitting method and mobile terminal device capable of switching between a plurality of terminal communication modes having different maximum transmissible power values with a high degree of precision, while suppressing increases in signaling overhead. In a mobile station ( | 07-07-2011 |
| 20110167312 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method which can reduce the transmission packet collision generation ratio even when no resource allocation signal is detected in retransmission. When control information outputted from a decoding unit ( | 07-07-2011 |
