Patent application number | Description | Published |
20080273517 | Wireless Communication Apparatus and Wireless Communication Method - The circuit scale of a wireless communication apparatus at the data receiving end in a wireless communication performing an adaptive control for each of subcarriers or subchannels can be reduced. In the present apparatus, frame forming parts ( | 11-06-2008 |
20080304582 | Multi-Carrier Transmission Device and Multi-Carrier Transmission Method - There is provided a multi-carrier transmission device capable of improving a packet error ratio in a system where transmission data is repeatedly multi-carrier-transmitted. In this device, the transmission data is subjected to error correction encoding in an error correction encoding unit ( | 12-11-2008 |
20080304583 | Radio Transmission Device, Radio Reception Device, Radio Transmission Method, and Radio Reception Method - A radio transmission device capable of improving channel estimation precision for each frequency. In this device, an FFT unit ( | 12-11-2008 |
20080304584 | Radio Transmission Device and Radio Reception Device - There is disclosed a radio transmission device capable of improving the throughput. The radio transmission device ( | 12-11-2008 |
20080305740 | Wireless Communication Apparatus, Wireless Communication Method and Wireless Communication System - The objective of the present invention is to suppress an increase in the power consumption for the relaying of signals. A relay station unit | 12-11-2008 |
20080305823 | Base Station Device and Wireless Communication Method - A base station device enabling prevention of an increase of the power consumption of a terminal and reduction of interference caused in neighboring cells. The base station device ( | 12-11-2008 |
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 |
20080311863 | Radio Communication Device and Radio Communication Method - A radio communication device capable of lightening the influence of a frequency selective fading in the wide-band transmission of a single carrier thereby to prevent deterioration of error rate characteristics. In this device, an FFT unit ( | 12-18-2008 |
20090003477 | Radio Communication Base Station Apparatus and Report Channel Signal Transmission Band Setting Method - Provided is a base station capable of effectively transmitting BCH data. The base station ( | 01-01-2009 |
20090005049 | Base Station Apparatus And Wireless Transmission Method - A base station apparatus capable of effectively distributing resources of a wireless communication system, enhancing the throughput and increasing the number of users accommodated in the communication system. This apparatus increases or reduces, in accordance with the traffic of the communication system, the repetition number of transport data addressed to a mobile station being under a soft handover. For example, when the resource usage rates of BS | 01-01-2009 |
20090005101 | Transmission Power Control Apparatus, Propagation Path Estimating Apparatus, Transmission Power Control Method, and Propagation Path Estimating Method - A transmission power control apparatus capable of reducing unnecessary transmission power that is consumed in transmission of pilot symbols. In the apparatus, a power control part ( | 01-01-2009 |
20090005109 | Wireless Transmitter and Wireless Transmitting Method - A wireless transmitter for infallibly delivering data to a wireless receiver, i.e., a multicast or broadcast receiver while increasing the system capacity or the individual channel accommodation capacity. A base station device ( | 01-01-2009 |
20090011700 | Wireless Communication Method, Relay Station Apparatus, and Wireless Transmitting Apparatus - A wireless communication method and the like for improving the system throughput. The wireless communication method is used in a mobile communication system having a base station apparatus (BS), a relay station apparatus (RS) ( | 01-08-2009 |
20090011702 | WIRELESS TRANSMISSION APPARATUS AND WIRELESS TRANSMISSION METHOD - A wireless transmission apparatus capable of suppressing a reduction in coverage area of a base station apparatus and improving the transmission rate in the coverage area. According to this apparatus, a mobile station ( | 01-08-2009 |
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 |
20090022232 | RADIO TRANSMITTER APPARATUS AND RADIO RECEIVER APPARATUS - A radio receiver apparatus and a radio transmitter apparatus wherein the energy loss caused by addition of GI is suppressed, while the reception quality is improved. A signal having been subjected to an IFFT process is repetitively transmitted N times with a length of one OFDM symbol interval. At a receiver apparatus receiving the transmitted signals, a leading data extracting part ( | 01-22-2009 |
20090034637 | TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND LINK ADAPTATION METHOD - A link adaptation method and others wherein feedback information amount can be reduced. According to this method, a receiving apparatus ( | 02-05-2009 |
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 |
20090046592 | WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION APPARATUS, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM - A wireless communication method and a wireless communication system wherein any communication interruption caused by changing RRB arrangement information can be avoided. In ST | 02-19-2009 |
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 |
20090046701 | RADIO COMMUNICATION BASE STATION APPARATUS AND SYNCHRONIZATION CHANNEL SIGNAL TRANSMISSION METHOD - Provided is a base station capable of searching cells of different frequencies without losing a opportunity of data communication by effectively performing SCH data transmission. The base station ( | 02-19-2009 |
20090059854 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a base station capable of searching cells of different frequencies without losing a chance of data communication by effectively performing SCH data communication. The base station ( | 03-05-2009 |
20090060077 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND PILOT SIGNAL DISPOSING METHOD - A base station device is provided with features in which multicast data can be prevented from deterioration in the accuracy of channel estimation due to interference of a unicast data pilot signal when multicast data and unicast data are multiplexed for transmission. In this device, a unicast pilot signal generating unit ( | 03-05-2009 |
20090060100 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus capable of enhancing the transmission efficiency, while maintaining a good BER characteristic. In this apparatus, a setting part ( | 03-05-2009 |
20090061767 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication method capable of selecting an optimum relay station, while preventing degradation of the throughput. According to this wireless communication method, in a frame | 03-05-2009 |
20090061920 | MOBILE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A mobile station wherein the power consumption can be suppressed. In a frame | 03-05-2009 |
20090075700 | RADIO COMMUNICATION BASE STATION APPARATUS IN MULTIPLE-CARRIER COMMUNICATION AND RADIO COMMUNICATION METHOD - A base station is provided to suppress a drop of receiving power and deterioration of receiving characteristics by cancellation between the same symbols in the case of application of a repetition technology to multiple-carrier communication. In this base station ( | 03-19-2009 |
20090103648 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD IN MULTICARRIER COMMUNICATION - A base station apparatus wherein the interference suppression symbol combination can be performed in a case of using the repetition technique in a multicarrier communication. In a base station ( | 04-23-2009 |
20090104877 | RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD - A CIR measuring section | 04-23-2009 |
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 |
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 |
20090150738 | DATA COMMUNICATION APPARATUS, DATA RECEIVING APPARATUS, DATA TRANSMITTING APPARATUS, AND RETRANSMISSION CONTROL METHOD - A data communication apparatus, a data receiving apparatus, a data transmitting apparatus and a retransmission control method wherein the transmission efficiency is improved. The data communication apparatus includes an error rate determining part ( | 06-11-2009 |
20090168711 | RADIO COMMUNICATION SYSTEM, RADIO TRANSMISSION APPARATUS, AND RETRANSMISSION METHOD - Provided is a retransmission method capable of improving reception quality in retransmission control. In this method, for the first transmission, LRB (Localized Resource Block) method is selected as a resource allocation method according to the CQI fed back from the mobile station. A frequency resource having the best reception quality according to the LRB format is allocated for the transmission data. For the second transmission, the same resource allocation method (LRB) as the first transmission is used and the transmission data is allocated fro the same frequency resource. For the third transmission, the resource allocation method is switched from the method of the first and the second transmission and transmission data is allocated to the frequency resource by using DRB (Distributed Resource Block) format. | 07-02-2009 |
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 |
20090190516 | RADIO COMMUNICATION BASE STATION APPARATUS AND PILOT TRANSMITTING METHOD - A base station realizing enhancement of the interpolation accuracy of the channel estimate between sub-frames. In a base station ( | 07-30-2009 |
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 |
20090233598 | RADIO COMMUNICATION BASE STATION APPARATUS, RADIO COMMUNICATION MOBILE STATION APPARATUS, AND RADIO COMMUNICATION METHOD IN MULTI-CARRIER COMMUNICATION - There is provided a mobile station device capable of effectively performing interference suppression symbol synthesis while suppressing the lowering of the transfer rate when using the repetition technique in multi-carrier communication. In the mobile station device ( | 09-17-2009 |
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 |
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 |
20090245188 | RADIO COMMUNICATION SYSTEM, RADIO TRANSMISSION APPARATUS, AND RESOURCE ALLOCATION METHOD - Provided is a resource allocation method capable of improving a reception quality when connecting a plurality of sub frames into one frame and performing a communication process for each of the frames. In this method, when a sub frame # | 10-01-2009 |
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 |
20090257371 | RADIO COMMUNICATION BASE STATION APPARATUS AND TRANSMISSION METHOD IN THE RADIO COMMUNICATION BASE STATION APPARATUS - Provided is a base station capable of SFN transmission of multicast data by using an empty section of an allocated resource. In this base station, an arrangement unit ( | 10-15-2009 |
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 |
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 |
20090279446 | RADIO COMMUNICATION DEVICE AND CQI GENERATION METHOD - It is possible to provide a radio communication device and a CQI generation method capable of reducing the total number of CQI when reporting CQI for each level in a hierarchized RB. In the device and the method, the RB hierarchy is made as follows: a plurality of groups each consisting of the same number of RB are made to be one level, a group consisting of a plenty of RB is made to be a lower level, and a group consisting of a small number of RB is made to be a higher level. UE reports CQI for each level to Node B according to the RB reception quality at a longer cycle for lower level and at a shorter cycle for a higher level. | 11-12-2009 |
20090290541 | RADIO COMMUNICATION BASE STATION DEVICE AND CONTROL CHANNEL MCS CONTROL METHOD - Provided is a radio communication base station device capable of reducing a communication overhead by a control channel such as SCCH (Shared Control Channel). In this device, each encoding unit ( | 11-26-2009 |
20090303944 | RADIO COMMUNICATION BASE STATION APPARATUS AND RESOURCE BLOCK ALLOCATION METHOD - A base station can perform distributed allocation enabling a resource block allocation with a higher priority while suppressing a control information amount. In this base station, the localized allocation of data to terminals # | 12-10-2009 |
20100023836 | OFDM Signal Collision Position Detection Apparatus and OFDM Reception Apparatus - A pilot reception power measuring section measures reception power of a pilot symbol and a data section reception power prediction section predicts reception power of data symbols based on the reception power of the pilot symbol. A power comparison section calculates a difference between this predicted value and the actual reception power of the data symbol, and when the difference is large, a collision position detection section regards the data symbol at the hopping position as colliding with data symbols in other cells. Then, an error correcting decoding section carries out error correcting processing by reducing likelihood of the data symbols detected to be involved in the collision and can thereby improve the error rate characteristic of decoded data. | 01-28-2010 |
20100027501 | RADIO COMMUNICATION DEVICE AND PILOT ARRANGEMENT METHOD - Provided is a radio communication device capable of reducing the number of pilots while maintaining a channel estimation accuracy. The radio communication device includes: a unicast pilot generation unit ( | 02-04-2010 |
20100040003 | RADIO COMMUNICATION BASE STATION DEVICE AND CONTROL SIGNAL MAPPING METHOD - Provided is a radio communication base station device which can reduce the number of judgment times for a control signal in a mobile station, thereby suppressing power consumption by the mobile station. The radio communication base station device ( | 02-18-2010 |
20100046459 | CHANNEL ARRANGEMENT METHOD AND RADIO COMMUNICATION BASE STATION DEVICE - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 02-25-2010 |
20100048219 | RADIO COMMUNICATION BASE STATION DEVICE AND CONTROL CHANNEL ARRANGEMENT METHOD - Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( | 02-25-2010 |
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 |
20100061359 | RADIO COMMUNICATION BASE STATION DEVICE AND RADIO COMMUNICATION METHOD - Provided is a radio communication base station device capable of suppressing degradation of a signal error ratio characteristic for a mobile station in the vicinity of the cell center when a plurality of signals whose transmission power is to be controlled are frequency-multiplexed or code-multiplexed. In the device ( | 03-11-2010 |
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 |
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 |
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 |
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 |
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 |
20100172278 | RADIO TRANSMISSION APPARATUS AND RADIO TRANSMITTING METHOD - Provided is a radio transmission device capable of improving reception accuracy of a unicast channel received after a multicast channel. In the radio transmission device, a multicast transmission power control unit ( | 07-08-2010 |
20100172286 | RADIO COMMUNICATION BASE STATION APPARATUS AND PILOT TRANSMISSION METHOD - Provided is a base station capable of giving a pilot appropriate for both of multicast data and unicast data which are frequency-multiplexed. In a pilot generation unit ( | 07-08-2010 |
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 |
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 |
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 |
20100195823 | Radio Communication Base Station Device, Radio Communication Mobile Station Device, Method for Scrambling Response Signal in ARQ - Provided is a radio communication base station device which can prevent damage of ARQ control in an ARQ in which a response signal (ACK/NACK) channel is shared by a plurality of mobile stations. In the device, a repetition unit ( | 08-05-2010 |
20100197221 | WIRELESS COMMUNICATION METHOD, RELAY STATION APPARATUS, AND WIRELESS TRANSMITTING APPARATUS - A wireless communication method and the like for improving the system throughput. The wireless communication method is used in a mobile communication system having a base station apparatus (BS), a relay station apparatus (RS) ( | 08-05-2010 |
20100202377 | CHANNEL ARRANGEMENT METHOD AND WIRELESS COMMUNICATION BASE STATION DEVICE - It is an object to provide a wireless communication base station device that can prevent the decline of a system throughput due to the degradation of a utilization efficiency of a communication resource of a channel for carrying out a frequency diversity transmission when a frequency scheduling transmission and a frequency diversity transmission are concurrently carried out in multiple carrier communication. In the wireless communication base station device, a modulation unit ( | 08-12-2010 |
20100202386 | WIRELESS COMMUNICATION APPARATUS AND MAPPING METHOD - A wireless communication apparatus wherein the power consumption can be reduced. In this apparatus, a code block dividing part ( | 08-12-2010 |
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 |
20100226318 | RADIO COMMUNICATION BASE STATION DEVICE AND CONTROL CHANNEL ARRANGING METHOD - Provided is a base station which can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding section ( | 09-09-2010 |
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 |
20100232388 | RADIO COMMUNICATION MOBILE STATION DEVICE AND RESPONSE SIGNAL SPREAD SEQUENCE CONTROL METHOD - Provided is a radio communication mobile station device which can reduce the number of blind decoding processes at a mobile station without increasing the overhead by report information. The device includes: a judgment 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 |
20100238818 | WIRELESS COMMUNICATION MOBILE STATION APPARATUS AND COMMUNICATION QUALITY INFORMATION GENERATING METHOD - A wireless communication mobile station apparatus wherein the accuracy of measuring the communication quality can be improved. In this apparatus, a desired signal power measuring part ( | 09-23-2010 |
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 |
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 |
20100272212 | MULTI-CARRIER TRANSMISSION DEVICE AND MULTI-CARRIER TRANSMISSION METHOD - There is provided a multi-carrier transmission device capable of improving a packet error ratio in a system where transmission data is repeatedly multi-carrier-transmitted. In this device, the transmission data is subjected to error correction encoding in an error correction encoding unit ( | 10-28-2010 |
20100273438 | RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD IN MULTI-CARRIER COMMUNICATION - Provided is a radio communication device capable of preventing lowering of the frequency diversity effect when using the CDD (Cyclic Delay Diversity) in combination with the frequency diversity technique in a multi-carrier communication. In the radio communication device ( | 10-28-2010 |
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 |
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 |
20100290404 | INTEGRATED CIRCUIT THAT CONTROLS TRANSMISSION OF A RANDOM ACCESS SIGNAL - A communication terminal apparatus that exhibits a shorter time period required until a start of communication and causes the throughput in the wireless communication system to be less reduced. In this apparatus, when the number, N, of retransmissions notified by a response determining part ( | 11-18-2010 |
20100290418 | RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION MOBILE STATION DEVICE, AND CONTROL CHANNEL ALLOCATION METHOD - Provided is a radio communication station device which can prevent limiting of resource allocation in a UE group. The radio communication device includes: a CCE allocation unit ( | 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 |
20100297969 | RADIO TRANSMISSION DEVICE, RADIO RECEPTION DEVICE, RADIO TRANSMISSION METHOD, AND RADIO RECEPTION METHOD - A radio transmission device capable of improving the reception error rate characteristics of a receiver. In this device, an FFT (Fast Fourier Transform) unit ( | 11-25-2010 |
20100309870 | CONTROL CHANNEL SIGNALING USING A COMMON SIGNALING FIELD FOR TRANSPORT FORMAT AND REDUNDANCY VERSION - The invention relates to a method for providing control signalling associated to a protocol data unit conveying user data in a mobile communication system and to the control channel signal itself. Furthermore, the invention also provides a mobile station and a base station and their respective operation in view of the newly defined control channel signals defined herein. In order to reduce the control channel overhead, the invention suggests defining a common field for the transport format and redundancy version in the control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. According to another aspect, one shared field is provided on the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. In another embodiment, further enhancements to a HARQ protocol are suggested for addressing certain error cases. | 12-09-2010 |
20100309873 | CHANNEL ARRANGEMENT METHOD AND RADIO COMMUNICATION DEVICE - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 12-09-2010 |
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 |
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 |
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 |
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 |
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 |
20110070891 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND REFERENCE SIGNAL ALLOCATION METHOD - Disclosed is a wireless communication base station apparatus capable of preventing degradation of throughput of LTE terminals, even when both LTE terminals and LTE+ terminals are present together. In this apparatus, a CCE allocation section ( | 03-24-2011 |
20110075757 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - A radio communication device capable of lightening the influence of a frequency selective fading in the wide-band transmission of a single carrier thereby to prevent deterioration of error rate characteristics. In this device, an FFT unit ( | 03-31-2011 |
20110081916 | RANDOM ACCESS METHOD AND RADIO COMMUNICATION TERMINAL DEVICE - There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST | 04-07-2011 |
20110085508 | RESOURCE ALLOCATION SIZE DEPENDENT TRANSPORT BLOCK SIZE SIGNALING - The invention relates to a method for providing control signalling associated to a transport block in a mobile communication system. Furthermore, the invention also provides a receiving apparatus and a transmitting apparatus that performs the methods proposed herein. In order to obtain a control signaling mechanism that is increasing the number of available transport block sizes that can be used for transmissions of a transport block, without increasing the control signaling overhead, the invention suggests to apply a partitioning to the transport block size indices defined over the entire range of applicable resource allocation sizes and modulation and coding scheme levels, wherein the transport blocks size indicator is selecting the transport block size index from a respective partition depending on the resource allocation size. | 04-14-2011 |
20110090832 | MOBILE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A mobile station wherein the power consumption can be suppressed. In a frame | 04-21-2011 |
20110096690 | RECEIVER APPARATUS AND COMMUNICATION METHOD - A receiver apparatus wherein the processing amount for CQI (Channel Quality Indicator) measurements in a communication system having a plurality of system bandwidths can be reduced. In this apparatus, a narrow band CQI measurement part ( | 04-28-2011 |
20110096691 | RECEIVER APPARATUS AND COMMUNICATION METHOD - A receiver apparatus wherein the processing amount for CQI (Channel Quality Indicator) measurements in a communication system having a plurality of system bandwidths can be reduced. In this apparatus, a narrow band CQI measurement part ( | 04-28-2011 |
20110096742 | MOBILE STATION APPARATUS AND METHOD FOR RECEIVING DATA - It is an object to provide a wireless communication base station device that can prevent the decline of a system throughput due to the degradation of a utilization efficiency of a communication resource of a channel for carrying out a frequency diversity transmission when a frequency scheduling transmission and a frequency diversity transmission are concurrently carried out in multiple carrier communication. In the wireless communication base station device, a modulation unit ( | 04-28-2011 |
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 |
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 |
20110103321 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND CONTROL CHANNEL ALLOCATION METHOD - A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part ( | 05-05-2011 |
20110103343 | METHOD OF ARRANGING REFERENCE SIGNALS AND WIRELESS COMMUNICATION BASE STATION APPARATUS - Disclosed is a wireless communication base station apparatus whereby it is possible to prevent degradation of throughput of LTE terminals, even when LTE terminals and LTE+ terminals are present together. In this apparatus, a setting section ( | 05-05-2011 |
20110110319 | RADIO COMMUNICATION BASE STATION DEVICE AND CONTROL CHANNEL ARRANGEMENT METHOD - Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( | 05-12-2011 |
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 |
20110134901 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - It is possible to obtain the diversity effect in a plurality of slots while preventing complication of a scheduler or inefficient use of resources, to eliminate the phenomenon in which SINR significantly decreases in a specific slot, and to avoid deterioration of demodulation performance. In a radio communication system which performs transmission in a sub-frame unit having two slots temporally continuously arranged, when pre-coding is performed by multiplying a signal to be output to a plurality of antennas by a pre-coding weight, CDD is used to shift a phase such that the phase in the pre-coding weight is cyclically changed on the frequency axis. The phase shift amount to be applied by the CDD is set to change by 2π in an allocated resource block (1RB) of the local device, and PVS is applied such that the phase shift amount differs by π between the weight W | 06-09-2011 |
20110141998 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL, AND CONTROL INFORMATION CREATION METHOD - Disclosed is a wireless communication base station device capable of reducing the power consumption of a terminal when broadband transmission is performed with only an uplink. With this device, a setting unit ( | 06-16-2011 |
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 |
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 |
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 |
20110177833 | CCE + NUMBER ALLOCATION METHOD AND BASE STATION DEVICE - Disclosed is a CCE+ number allocation method which reduces the ACK/NACK (Acknowledgment/Negative Acknowledgment) collision probability in a mixed system containing an LTE (Long Term Evolution) system and an LTE+ (Long Term Evolution Advanced) system. A CCE (Control Channel Element)+ number is defined by selecting a number from CCE numbers of the CCE to contain PDCCH (Physical Downlink Control Channel) allocated in a resource element region constituting CCE+ where PDCCH+ is arranged. This can prevent overlapped selection of the CCE number and the CCE+ number even when the PDCCH and the PDCCH+ are simultaneously transmitted. Thus, it is possible to reduce the collision probability of ACK/NACK correlated to the CCE number and the CCE+ number. | 07-21-2011 |
20110182265 | 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 ( | 07-28-2011 |
20110194515 | BASE STATION, TERMINAL, BAND ALLOCATION METHOD, AND DOWNLINK DATA COMMUNICATION METHOD - Provided are a base station, a terminal, a band allocation method, and a downlink data communication method with which bands can be efficiently allocated. In a base station ( | 08-11-2011 |
20110194525 | WIRELESS COMMUNICATION BASE STATION EQUIPMENT, WIRELESS COMMUNICATION TERMINAL DEVICE AND SEARCH SPACE SETTING METHOD - Disclosed is wireless communication base station equipment in which CCE allocation can be flexibly performed without collision of ACK/NACK signals between a plurality of unit bands, even when wideband transmission is performed exclusively on a downlink circuit. In this equipment, an allocation unit ( | 08-11-2011 |
20110194639 | BASE STATION, TERMINAL, BAND ALLOCATION METHOD, AND DOWNLINK DATA COMMUNICATION METHOD - Provided are a base station, a terminal, a band allocation method, and a downlink data communication method in which a mapping method for synchronization signals and report signals is implemented with high resource usage efficiency when a first system in which an independent single communication is allocated to a unit band co-exists with a second system in which a plurality of unit bands can be allocated to a single communication. In a base station ( | 08-11-2011 |
20110199999 | RADIO TERMINAL DEVICE, RADIO BASE STATION DEVICE, AND CHANNEL SIGNAL FORMING METHOD - Provided are a radio terminal device, a radio base station device, and a channel signal forming method which can prevent quality degradation of the downlink source allocation information by reducing the frequency of the zero information addition process to the downlink resource allocation information when executing communication using an uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. A base station ( | 08-18-2011 |
20110200000 | WIRELESS COMMUNICATION TERMINAL APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS, AND MODULATION METHOD - A wireless communication terminal apparatus wherein even in a case of performing a wideband transmission using only a downstream line, CCE assignment can be flexibly performed without any collisions of ACK and NACK signals among a plurality of unit bands. In a wireless communication terminal apparatus ( | 08-18-2011 |
20110205966 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method which can suppress lowering of the throughput caused by switching between the single carrier communication method and the multi-carrier communication method while suppressing increase of the signaling amount. A PHR threshold value setting unit ( | 08-25-2011 |
20110205973 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Disclosed is a wireless communication apparatus that can improve the efficiency of using data resources, while suppressing the increase in CM of transport signals in a wireless communication system in which single-carrier transmissions and multi-cluster transmissions are coexistent. In this apparatus, a multiplex manner deciding unit ( | 08-25-2011 |
20110206030 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - The present invention makes it possible to obtain the transmission diversity effect by applying a CDD while reducing the inter-code interference when performing a code multiplexing. When an Ack/Nack signal is transmitted from a user terminal to a base station in an upstream control channel by using an Ack/Nack resource, the signal is code-multiplexed by using a code sequence containing an orthogonal sequence and a cyclic-shifted sequence and transmitted from a plurality of user terminals to the base station. Upon using an aggregation size indicating the number of control signals of the downstream control channel, if the aggregation size is greater than one, it is determined that no resource located at the right of the axis of the cyclic-shifted amount of the cyclic-shifted sequence in the same orthogonal code of the orthogonal sequence is used, and the Ack/Nack signal to which CDD is applied from a plurality of antennas is transmitted by using a resource ACK # | 08-25-2011 |
20110206147 | RESOURCE BLOCK MAPPING FOR SYMBOLS WITH REPETITION - In a mobile communication system with uncorrelated channel characteristics, transmission using modulation of data symbols with repetition can improve the performance. However, mapping of the original and the repeated symbols into the physical resources may on the other hand reduce a desired level of diversity when the original and the corresponding repeated symbols map on the physical resources close to each other. The present invention provides a method for transmission, a transmitter, a method for receiving, and a receiver capable of efficiently transmit/receive data symbols with an increased level of diversity. This is achieved by grouping of portions of the original and the corresponding data symbols and by mapping the portions of the original and the corresponding data symbols into the different physical resource blocks. | 08-25-2011 |
20110211482 | RECEIVER APPARATUS AND COMMUNICATION METHOD - A receiver apparatus wherein the processing amount for CQI (Channel Quality Indicator) measurements in a communication system having a plurality of system bandwidths can be reduced. In this apparatus, a narrow band CQI measurement part ( | 09-01-2011 |
20110211545 | BASE STATION APPARATUS PROVIDING RESOURCE BLOCK ALLOCATION AND METHOD THEREFOR - It is an object to provide a wireless communication base station device that can prevent the decline of a system throughput due to the degradation of a utilization efficiency of a communication resource of a channel for carrying out a frequency diversity transmission when a frequency scheduling transmission and a frequency diversity transmission are concurrently carried out in multiple carrier communication. In the wireless communication base station device, a modulation unit ( | 09-01-2011 |
20110216848 | 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 ( | 09-08-2011 |
20110222503 | WIRELESS BASE STATION, WIRELESS TERMINAL, AND CHANNEL SIGNAL FORMATION METHOD - Disclosed are a wireless base station, wireless terminal, and channel signal formation method that can prevent the quality of downstream assignment control data from degrading, while preventing the number of blind determinations from increasing on the wireless terminal on the receiving side of the downstream control channel signal. In a base station ( | 09-15-2011 |
20110223951 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit ( | 09-15-2011 |
20110228757 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit ( | 09-22-2011 |
20110228759 | ENCODING RATIO SETTING METHOD AND RADIO COMMUNICATION DEVICE - Disclosed are an encoding ratio setting method and a radio communication device which can avoid encoding of control information at an encoding ratio lower than necessary and suppress lowering of the transmission efficiency of the control information. In the device, an encoding ratio setting unit ( | 09-22-2011 |
20110230237 | BASE STATION AND RADIO COMMUNICATION METHOD BY A BASE STATION - A communication terminal apparatus that exhibits a shorter time period required until a start of communication and causes the throughput in the wireless communication system to be less reduced. In this apparatus, when the number, N, of retransmissions notified by a response determining part ( | 09-22-2011 |
20110243109 | RANDOM ACCESS METHOD, RADIO COMMUNICATION TERMINAL DEVICE, RECEIVING METHOD, AND BASE STATION APPARATUS - There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST | 10-06-2011 |
20110249707 | RADIO COMMUNICATION APPARATUS AND REFERENCE SIGNAL GENERATING 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 ( | 10-13-2011 |
20110261741 | TRANSMISSION APPARATUS AND METHOD, AND RECEPTION APPARATUS AND METHOD - A transmission power control apparatus capable of reducing unnecessary transmission power that is consumed in transmission of pilot symbols. In the apparatus, a power control part establishes, based on a repetition number of a data signal, a transmission power value of a pilot signal. For example, the power control part establishes, based on an improved reception quality when data signals as replicated in accordance with the repetition number of a data signal are combined, a transmission power value of a pilot signal at a level required and sufficient for meeting a target value of the reception quality of the other end of communication. A power amplifying part amplifies the pilot signal in accordance with the established transmission power value. | 10-27-2011 |
20110268082 | CHANNEL ARRANGEMENT METHOD AND RADIO COMMUNICATION BASE STATION DEVICE - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 11-03-2011 |
20110275396 | REFERENCE SIGNAL ARRANGEMENT METHOD AND WIRELESS COMMUNICATION BASE STATION APPARATUS - A wireless communication base station apparatus which is able to prevent deterioration in the throughput of LTE terminals even when LTE terminals and LTE+ terminals coexist. In this apparatus, based on the mapping pattern of the reference signals used only in LTE+ terminals, a setting unit ( | 11-10-2011 |
20110275398 | CHANNEL ARRANGEMENT METHOD AND RADIO COMMUNICATION DEVICE - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 11-10-2011 |
20110280177 | BASE STATION APPARATUS AND TRANSMISSION METHOD - A transmission method in time-division relay, using a common transmission format to transmit a control signal for each relay station apparatus; and a base station apparatus of the same. A base station apparatus maps the control signal for relay station apparatuses in the (D+1)th OFDM symbol inside a subframe, wherein D is the maximum number of OFDM symbols in which control signals for mobile station apparatuses are mapped, said control signals being transmitted from the base station apparatus to mobile station apparatuses under the control of the base station apparatus. | 11-17-2011 |
20110280284 | WIRELESS COMMUNICATION TERMINAL DEVICE AND METHOD OF SIGNAL DIFFUSION - Disclosed is a wireless communication terminal device that is capable of preventing inter-coding interference upon each of a plurality of base stations, even when the timing changes for a transmission of a control signal that is CoMP received by the plurality of base stations. Upon the device, a diffusion unit ( | 11-17-2011 |
20110286413 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL DEVICE AND CCE ALLOCATION METHOD - Disclosed is a wireless communication base station device that can suppress increases in terminal power consumption while being able to perform CCE allocation flexibly. In the device, a search space setting unit ( | 11-24-2011 |
20110299496 | SCHEDULING APPARATUS AND SCHEDULING METHOD - A scheduling apparatus and a scheduling method, wherein the amount of signaling for frequency resource allocation information can be reduced while maintaining system throughput performance. In a base station apparatus ( | 12-08-2011 |
20110300890 | RADIO RECEPTION APPARATUS, RADIO TRANSMISSION APPARATUS, AND RADIO COMMUNICATION METHOD - In a case where a second reference signal for a second communication system is transmitted in addition to a first reference signal for a first communication system, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS, DVRB resources in which a resource unit defined in a frequency-time domain is divided in a time direction and distributedly allocated at predetermined frequency intervals are used and CSI-RS is allocated in a resource ID of a part of DVRB resources and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in DVRM resources on the basis of DVRB setting information for CSI-RS, measures channel quality such as CQI, PMI or RI by using CSI-RS, and transmits and reports feedback information containing channel quality information to a transmission apparatus. | 12-08-2011 |
20110305261 | BASE STATION AND MOBILE STATION COMMUNICATING WITH OFDM SYSTEM USING A PLURALITY OF SUBCARRIERS AND COMMUNICATION METHOD WITH OFDM SYSTEM USING A PLURALITY OF SUBCARRIERS - A multicarrier communication apparatus that is capable of suppressing interference of feedback information with other channels and alleviating a reduction in an uplink capacity. In PL signal reception section ( | 12-15-2011 |
20110310809 | Wireless Communication Base Station Apparatus and Channel Allocation Method - A wireless communication base station apparatus by which data transmission efficiency can be improved. In the apparatus, a PDCCH allocation unit ( | 12-22-2011 |
20110317581 | RADIO RECEPTION APPARATUS, RADIO TRANSMISSION APPARATUS, AND RADIO COMMUNICATION METHOD - In a case where a second reference signal for a second communication system is transmitted in addition to a first reference signal for a first communication system, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal | 12-29-2011 |
20110317655 | RADIO TERMINAL, RADIO BASE STATION, CHANNEL SIGNAL FORMING METHOD, AND CHANNEL SIGNAL RECEIVING METHOD - Provided are a radio terminal, a radio base station, a channel signal forming method, and a channel signal receiving method, by which the number of blinds in the processing for receiving allocation control information is reduced without causing disadvantage regarding the reception of a broadcast channel signal. In a base station ( | 12-29-2011 |
20120002631 | WIRELESS COMMUNICATION TERMINAL DEVICE, WIRELESS COMMUNICATION BASE STATION DEVICE, AND RESOURCE REGION SETTING METHOD - A terminal capable of reducing the resource regions in an uplink component band without increasing signaling even if a plurality of acknowledgment signals to downlink data transmitted respectively in a plurality of downlink component bands are transmitted from one uplink component band. A terminal ( | 01-05-2012 |
20120008589 | WIRELESS BASE STATION APPARATUS, WIRELESS TERMINAL APPARATUS, FREQUENCY RESOURCE ALLOCATION METHOD, AND METHOD OF FORMING TRANSMISSION SIGNAL - A wireless base station apparatus and wireless terminal apparatus with a configuration which can prevent reductions in the accuracy of channel estimation when non-contiguous band transmission and SRS transmission are employed in an uplink line. In the base station apparatus ( | 01-12-2012 |
20120026892 | BASE STATION APPARATUS AND TERMINAL APPARATUS - A base station apparatus and terminal apparatus with a configuration which achieves highly flexible retransmission control while preventing increases in the uplink control channel overhead. In the base station ( | 02-02-2012 |
20120026948 | WIRELESS COMMUNICATION BASE STATION DEVICE AND DIVISION NUMBER DETERMINATION METHOD - Disclosed are a wireless communication base station device and a division number determination method that improves the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit ( | 02-02-2012 |
20120026953 | COMMUNICATION DEVICE AND COMMUNICATION METHOD - Disclosed are a wireless communication base station device, a wireless communication terminal device, and a wireless communication method with which the amount of signaling is reduced while maintaining a high scheduling gain. A judgment unit ( | 02-02-2012 |
20120026969 | INTEGRATED CIRCUIT FOR CONTROLLING A PROCESS - Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( | 02-02-2012 |
20120039160 | INTEGRATED CIRCUIT FOR RESPONSE SIGNAL SPREADING - 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 ( | 02-16-2012 |
20120039258 | RADIO 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 ( | 02-16-2012 |
20120057649 | RADIO TRANSMISSION APPARATUS, RADIO COMMUNICATION BASE STATION APPARATUS, RADIO COMMUNICATION MOBILE STATION APPARATUS, AND TRANSMISSION SIGNAL GENERATING METHOD - A base station allowing mobile stations to efficiently remove interference signals. In this base station, an encoding part performs an error correction encoding of transport data to generate a bit sequence comprising systematic bits and parity bits; a repetition part repeats, as a repetition subject, only the parity bits out of the plurality of bits included in the bit sequence, which is generated by the encoding part, so as to perform a rate matching; a modulating part modulates, after the repetition, the bit sequence to generate symbols; an S/P part parallel converts the symbols serially inputted from the modulating part ( | 03-08-2012 |
20120063292 | BASE STATION APPARATUS AND RADIO COMMUNICATION 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 ( | 03-15-2012 |
20120063469 | SCHEDULING DEVICE AND SCHEDULING METHOD - Provided are a scheduling device and a scheduling method, in which the amount of signaling of frequency resource allocation information can be reduced while the system throughput is maintained. In a base station device ( | 03-15-2012 |
20120069920 | COMMUNICATION APPARATUS AND 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 ( | 03-22-2012 |
20120069939 | COMMUNICATION APPARATUS AND 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 ( | 03-22-2012 |
20120076040 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus (eNB) transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses (UE | 03-29-2012 |
20120076043 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL DEVICE, CONTROL CHANNEL TRANSMISSION METHOD, AND CONTROL CHANNEL RECEPTION METHOD - Disclosed is a wireless communication base station device which can prevent unnecessary HARQ retransmissions when a terminal is using a plurality of unit bands, even when the unit band through which data is transmitted differs from the unit band through which a PDCCH, to which the resource allocation information of said data is allocated, is transmitted. In this device, a control unit ( | 03-29-2012 |
20120089880 | TERMINAL APPARATUS AND RETRANSMISSION CONTROL METHOD - A terminal apparatus and retransmission control method which can reduce the overhead of the uplink control channel in cases when ARQ is applied in communication that uses an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band. Here, a first condition is set in which downlink assignment control information is transmitted from a base station by a unit band group which comprises a basic unit band, which is the downlink unit band on which a broadcast channel signal including information relating to the uplink unit band is transmitted, and a second downlink unit band other than the basic unit band. A bundling unit ( | 04-12-2012 |
20120093020 | RADIO COMMUNICATION APPARATUSES AND RADIO COMMUNICATION METHOD - Provided are a radio communication mobile station apparatus, a radio communication base station apparatus and a radio communication method, which make it possible to correctly switch between transmission modes for a PUSCH and a PUCCH while impeding signaling overhead from increasing. A transmission mode setting unit ( | 04-19-2012 |
20120093064 | WIRELESS COMMUNICATION RELAY STATION APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS, WIRELESS COMMUNICATION MOBILE STATION - There is provided a wireless communication relay station apparatus and a wireless communication base station apparatus capable of allocating resources dynamically to each apparatus in accordance with traffic. A wireless communication relay station apparatus according to the invention includes a receiver that receives data from the wireless communication base station apparatus or the wireless communication mobile station apparatus, and a selector that selects data, within an uplink subframe or a downlink subframe, from: first data to be relayed from the own apparatus to the wireless communication base station apparatus; second data to be relayed from the own apparatus to the wireless communication mobile station apparatus; third data to be relayed from the wireless communication base station apparatus to the own apparatus; and fourth data to be relayed from the wireless communication mobile station apparatus to the own apparatus. The receiver receives allocation information for switching transmission/reception in the own apparatus from the wireless communication mobile station apparatus within an uplink subframe or a downlink subframe. The selector switches the first data and the fourth data within the uplink subframe in accordance with the allocation information received by the receiver, or the selector switches the second data and the third data within the downlink subframe in accordance with the allocation information received by the receiver. | 04-19-2012 |
20120093247 | RADIO TRANSMISSION APPARATUS AND RADIO TRANSMISSION METHOD - A radio transmission device capable of improving channel estimation precision for each frequency. In this device, an FFT unit ( | 04-19-2012 |
20120094709 | WIRELESS TRANSMISSION APPARATUS AND TRANSMISSION POWER CONTROL METHOD - Disclosed are a wireless transmission apparatus and transmission power control method which improve the error rate characteristics of data signals even when the number of streams of data signals increases, without increasing the amount of signaling. The relationship between the number of streams of data signals in each antenna ( | 04-19-2012 |
20120099462 | RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD - Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed: and a transmitter which transmits a result, of the measurement to the base station or the relay node. | 04-26-2012 |
20120106479 | INTEGRATED CIRCUIT FOR CHANNEL ARRANGEMENT AND RADIO COMMUNICATION - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 05-03-2012 |
20120113912 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Disclosed is a wireless communication apparatus and wireless communication method wherein flexible frequency scheduling is performed without increasing the scale of the DFT (Discrete Fourier Transform) circuitry. For example, when resource allocation information is reported indicating whether or not a resource has been allocated to each of a plurality of RBGs (RB groups) into which the system bandwidth is divided, as in Type 0 allocation, if the number of reported RBs reported by the resource allocation information cannot be expressed as “2̂n×3̂m×5̂l”, an allocated RB number setting section ( | 05-10-2012 |
20120113932 | MOBILE STATION APPARATUS AND CONTROL CHANNEL DECODING METHOD - A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part ( | 05-10-2012 |
20120115526 | RADIO BASE STATION AND RADIO COMMUNICATION METHOD - Disclosed is a base station capable of minimizing in Type 0 assignment the number of resource block groups occupied by a terminal that performs frequency hopping, and thereby flexibly assigning resources in the Type 0 assignment. The base station ( | 05-10-2012 |
20120115539 | METHOD AND DEVICE FOR ADJUSTING TIMING ADVANCE IN UPLINK MULTIPLE POINTS RECEPTION - A method and device for adjusting a timing advance in a communication system composed of a mobile terminal and multiple base stations is provided. The method includes steps: the multiple base stations measures channel latencies and powers of channel responses between the mobile terminal and the multiple base stations separately; the non-serving base station in the multiple base stations reports the channel latency and the power measured to a serving base station; and the serving base station determines the timing advance of the uplink of the mobile terminal according to the channel latency and the power received and the channel latency and the power which are measured by the serving base station itself, and informs the mobile base station of the timing advance. By using the method and the device, the useful power received by the uplink multi-base stations can be optimized, and the interference power can be effectively reduced. | 05-10-2012 |
20120120900 | MOBILE STATION APPARATUS AND COMMUNICATION METHOD - 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 ( | 05-17-2012 |
20120120901 | BASE STATION APPARATUS AND COMMUNICATION METHOD - 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 ( | 05-17-2012 |
20120120911 | RADIO COMMUNICATION BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD - A base station apparatus is provided, which includes a generator configured to generate a synchronization signal and a transmitter configured to transmit the generated synchronization signal. The generator is configured to generate a synchronization signal to be mapped on a subcarrier included in one of a plurality of frequency resource candidates that are separated by an interval, which is a common multiple of a determined frequency spacing and a subcarrier spacing between contiguous subcarriers, wherein the subcarrier spacing does not have a value that is a divisor of the determined frequency spacing. | 05-17-2012 |
20120127946 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL DEVICE, CCE ALLOCATION METHOD AND CCE BLIND DECODING METHOD - Disclosed is a wireless communication base station device which makes it possible to provide a base station, terminal and CCE allocation method capable of reducing the number of times blind decoding of a terminal is performed, without increasing the CCE block rate, even when a plurality of unit bands are set in a terminal. In this device, a search space setting section ( | 05-24-2012 |
20120128087 | TRANSMISSION APPARATUS AND TRANSMISSION METHOD - A wireless receiving apparatus capable of efficiently removing interference signals in a multicarrier communication. In a mobile station incorporating this wireless receiving apparatus, a selecting part selects a plurality of the same symbols in accordance with a mapping pattern established at the time of generating OFDM symbols in a base station. A correlation value calculating part determines correlation values between the subcarriers of the same symbols to generate an R-matrix, and further determines an inverse matrix of the R-matrix. An MMSE processing part performs an MMSE processing to determine a weight from both a P-vector received from a channel estimating part and the inverse matrix of the R-matrix received from the correlation value calculating part. Multipliers multiply each of the symbols selected by the selecting part by the weight determined by the MMSE processing part. A combining part combines the symbols as multiplied by the weight. | 05-24-2012 |
20120134333 | TERMINAL DEVICE AND RETRANSMISSION CONTROL METHOD - Provided are a terminal device and a retransmission control method by which, when carrier aggregation communication using a plurality of downlink unit bands is applied, the quality of downlink data transmitted by each downlink unit band can be maintained, while suppressing the increase in overhead of downlink allocation control information. In a terminal ( | 05-31-2012 |
20120140720 | BASE STATION APPARATUS THAT COMMUNICATES WITH MOBILE STATION APPARATUSES, MOBILE STATION APPARATUS THAT COMMUNICATES WITH A BASE STATION AND TRANSMISSION BAND SETTING METHOD PERFORMED IN A BASE STATION - A base station effectively transmits BCH data and includes an encoding unit for encoding the BCH data; a modulation unit for modulating the BCH data after being encoded; a transmission band setting unit for setting a BCH data transmission band in one of sub carriers constituting an OFDM symbol; encoding units for encoding user data, modulation units for modulating user data after being encoded; and an IFFT unit for mapping the BCH data and the user data to each of the sub carriers and performing IFFT to generate an OFDM symbol. Here, the IFFT unit maps the BCH data to the sub carrier existing in the transmission band set by the transmission band setting unit among the plurality of sub carriers. | 06-07-2012 |
20120140728 | TERMINAL DEVICE AND SIGNAL TRANSMISSION CONTROL METHOD - Disclosed is a terminal device in which increase in the overhead of an uplink control channel can be suppressed even when SCTD is applied to the transmission of response signals and SRs. Either a response signal or SR is allocated to mutually different encoding resources, and a terminal ( | 06-07-2012 |
20120142275 | RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD - A radio communication device capable of lightening the influence of a frequency selective fading in the wide-band transmission of a single carrier thereby to prevent deterioration of error rate characteristics. In this device, an FFT unit subjects a modulated signal inputted from a modulation unit to a Fourier transformation. A pilot insertion unit inserts a pilot symbol into a plurality of individual frequency components of the modulated signal. Weight multiplication units multiply the individual frequency components and the pilot symbols inserted into the individual frequency components, by weight coefficients set at a weight coefficient setting unit. IFFT units subject the frequency components to an inverse Fourier transformation, thereby to convert the frequency components into time domains. | 06-07-2012 |
20120170444 | TERMINAL STATION APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND CONTROL METHOD - A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus ( | 07-05-2012 |
20120176961 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - To effectively use transmission power by changing the arrangement of unused REGs. A wireless communication apparatus according to the invention corresponds to a wireless communication apparatus for performing wireless communication with a terminal equipment via a relay station, which includes an allocator which allocates CCEs in which control signals for the relay station are arranged to a plurality of REGs so that unused REGs not allocated with the CCEs differ among respective resource blocks each having the plurality of REGs, and a transmitter which transmits the control signals arranged in the CCEs allocated to the REGs to the relay station in accordance with an allocation by the allocation section. | 07-12-2012 |
20120177090 | RADIO COMMUNICATION TERMINAL DEVICE AND RADIO COMMUNICATION METHOD - Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit ( | 07-12-2012 |
20120182858 | TERMINAL DEVICE AND RETRANSMISSION CONTROL METHOD - Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit ( | 07-19-2012 |
20120207077 | WIRELESS COMMUNICATION APPARATUS AND REFERENCE SIGNAL GENERATING METHOD - Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit ( | 08-16-2012 |
20120208452 | RADIO COMMUNICATION METHOD - A wireless communication method and the like for improving the system throughput. The wireless communication method is used in a mobile communication system having a base station apparatus, a relay station apparatus and a mobile station apparatus # | 08-16-2012 |
20120218959 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, METHOD FOR MAPPING A RESPONSE SIGNAL, AND METHOD FOR DETERMINING A RESPONSE SIGNAL RESOURCE - Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( | 08-30-2012 |
20120224547 | BASE STATION APPARATUS PROVIDING RESOURCE BLOCK ALLOCATION AND METHOD THEREFOR - In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group. | 09-06-2012 |
20120236814 | RADIO TRANSMITTING APPARATUS AND CONTROL SIGNAL TRANSMITTING METHOD - Provided are a radio transmitting apparatus and a control signal transmitting method whereby the number of blind decodings on a control signal receiving side can be reduced without increasing the control signal allocation block rate. In a base station ( | 09-20-2012 |
20120250730 | INTEGRATED CIRCUIT FOR RESPONSE SIGNAL SPREADING - 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 ( | 10-04-2012 |
20120263131 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - There are disclosed a wireless communication apparatus and a wireless communication method whereby a flexible frequency scheduling can be performed without increasing the circuit scale of DFT (Discrete Fourier Transform). In a terminal ( | 10-18-2012 |
20120263140 | TRANSMITTING APPARATUS, RECEIVING APPARATUS, TRANSMITTING METHOD, AND RECEIVING METHOD - There is disclosed a radio transmission device capable of improving the throughput. The radio transmission device transmits a first signal and a second signal which are different from each other. In the radio transmission device, an FFT unit subjects first data to an FFT process. A sub-carrier allocation unit maps the first data which has been subjected to the FFT process and the second data into different frequencies. An IFFT unit subjects the mapped signal to the IFFT transform. A transmission radio processing unit transmits the signal which has been subjected to the IFFT processing, with a single carrier. | 10-18-2012 |
20120266054 | TERMINAL APPARATUS AND RESPONSE SIGNAL TRANSMITTING METHOD - A terminal apparatus and a response signal transmitting method wherein the system transmission efficiency can be improved by devising a bundling rule. In a terminal ( | 10-18-2012 |
20120281732 | INTEGRATED CIRCUIT FOR RESPONSE SIGNAL SPREADING - 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 ( | 11-08-2012 |
20120287770 | WIRELESS COMMUNICATION TERMINAL APPARATUS, WIRELESS COMMUNICATION BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Provided are a wireless communication terminal apparatus, a radio communication base station apparatus and a wireless communication method whereby the increase in the number of signaling bits can be suppressed, while the SRS capacity can be improved. RS type determining unit ( | 11-15-2012 |
20120287886 | BASE STATION, TERMINAL, RETRANSMISSION CONTROL METHOD, AND RESPONSE METHOD - Disclosed is a base station which can prevent degradation in the reception characteristics of nearby cells when carrier aggregation and channel selection are applied. In accordance with the resistance to interference of a plurality of uplink component carriers of a femtocell, a response protocol controller ( | 11-15-2012 |
20120288025 | TERMINAL AND COMMUNICATION METHOD THEREOF - A terminal and a communication method thereof whereby, even in a case of employing the asymmetric carrier aggregation system and further employing the MIMO transmission method for upstream channels, the error characteristic of control information can be prevented from being degraded. In the terminal ( | 11-15-2012 |
20120294256 | TERMINAL, BASE STATION, RESPONSE METHOD, AND RETRANSMISSION CONTROL METHOD - Disclosed are a terminal, a base station, a response method, and a retransmission control method, which are capable of switching the response signal transmission method while preventing throughput degradation and without increasing the number of signaling bits. A bundling determination unit ( | 11-22-2012 |
20120300660 | METHOD FOR SETTING SUBBANDS IN MULTICARRIER COMMUNICATION, AND RADIO COMMUNICATION MOBILE 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 ( | 11-29-2012 |
20120300740 | WIRELESS COMMUNICATION TERMINAL DEVICE, WIRELESS COMMUNICATION BASE STATION DEVICE, AND WIRELESS COMMUNICATION METHOD - Disclosed are a wireless communication method, a wireless communication base station device, and a wireless communication terminal device that dynamically switch the transmission slot of an SRS of each terminal within a cell while suppressing an increase in the number of signaling bits. A terminal ( | 11-29-2012 |
20120307778 | TRANSMISSION DEVICE AND TRANSMISSION METHOD - Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section ( | 12-06-2012 |
20120320820 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - A wireless communication device which can improve reception quality in a second other wireless communication device is disclosed, including a reception unit which receives a signal from a first other wireless communication device or a second other wireless communication device connected to the wireless communication device and the first other wireless communication device, a transmission power value setting unit which sets a transmission power value in a first subframe, in which the first other wireless communication device transmits a signal to the second other wireless communication device, to be higher than that in a second subframe in which the first other wireless communication device receives a signal from a third other wireless communication device connected to the first other wireless communication device, and a transmission power value switching control unit which performs switching in the first subframe to the transmission power value higher than that in the second subframe. | 12-20-2012 |
20120320854 | CONTROL INFORMATION TRANSMISSION APPARATUS, CONTROL INFORMATION RECEPTION APPARATUS, AND CONTROL INFORMATION TRANSMISSION METHOD - A control information transmission apparatus which can reduce the interference power of the control signal of the terminal connected to the femtocell is provided. The control information transmission apparatus comprises an arrangement unit that arranges some or all of control signals for a terminal in an extension part among resources including a compatible part and the extension part; and a transmission unit that transmits some or all of the arranged control signals for the terminal. | 12-20-2012 |
20120328056 | COMMUNICATION APPARATUS AND 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 ( | 12-27-2012 |
20130003692 | BASE STATION AND TRANSMISSION METHOD - Provided are a base station and a transmission method whereby, even in a case where a cross carrier scheduling is employed, the increase in the number of blind decodings on a PDCCH receiving side can be suppressed without need of signaling of an upper layer at the time of changing PDCCH CC. In the base station ( | 01-03-2013 |
20130010750 | WIRELESS RECEPTION DEVICE, WIRELESS TRANSMISSION DEVICE, AND WIRELESS COMMUNICATION METHOD - A wireless reception device includes a resource information acquisition section that is configured to acquire silent resource setting information showing that a silent resource which indicates that no signals are allocated in a predetermined resource among distributed resources in which a resource unit defined in a frequency-time domain is divided along a time direction and distributed at a predetermined frequency interval, a receiver that is configured to receive a signal including the distributed resources in which the silent resource is allocated; and an inter-cell interference measurement section that is configured to measure an inter-cell interference pertaining to an amount of interference affected by another cell based on the silent resource setting information and by use of the silent resource allocated in the distributed resources. | 01-10-2013 |
20130010833 | TERMINAL APPARATUS, BASE STATION APPARATUS, PILOT TRANSMITTING METHOD, AND PROPAGATION PATH ESTIMATING METHOD - Provided is a terminal apparatus that can suppress the increase in interference between pilot signals in the same slot, while also suppressing the degradation of the flexibility to design cell cluster structures. When hopping information indicates an inter-slot hopping, a mapping unit ( | 01-10-2013 |
20130021920 | TERMINAL APPARATUS AND RESPONSE SIGNAL TRANSMITTING METHOD - Disclosed are a terminal apparatus and a response signal transmitting method that can reduce the signaling overheads related to a bundling group in a communication system to which a partial bundling is applied. In a terminal ( | 01-24-2013 |
20130028124 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - A wireless communication device according to the invention includes a reception section that receives a downlink signal in a first subframe from another wireless communication device; an ACK/NACK generation section that generates ACK/NACK which indicates an error determination result of the received downlink signal; a determination section that determines, when an uplink signal directed to the other wireless communication device is not allocated in a second subframe, whether a different uplink signal is allocated in a third subframe subsequent to the first subframe by a predetermined number of subframes and previous to the second subframe; a multiplexing section that multiplexes the ACK/NACK to the different uplink signal in the third subframe when the determination section determines that the different uplink signal is allocated in the third subframe; and a transmission section that transmits the different uplink signal in which the ACK/NACK is multiplexed by the multiplexing section. | 01-31-2013 |
20130028214 | TRANSMISSION DEVICE, TRANSMISSION POWER CONTROL METHOD AND TRANSMISSION DETERMINATION METHOD - Provided is a transmission device, wherein even when the transmission device performs noncontiguous band allocation transmission, the same level of coverage and gain as when the contiguous band allocation transmission is assumed can be maintained. A transmission power control unit ( | 01-31-2013 |
20130034077 | BASE STATION APPARATUS AND RADIO COMMUNICATION 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 ( | 02-07-2013 |
20130039164 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus of the invention has a determination section that determines which one of a plurality of formats is used for determining transmission symbols to be transmitted to another communication apparatus; a control section that determines a type a sequence length of an orthogonal code and used for assigning ACK/NACK symbols to identical symbols in an identical slot on basis of the format determined by the determination section, without depending on a number of transmission symbols capable of being transmitted to the other communication apparatus; a spreading section that spreads the ACK/NACK symbols by an identical type of orthogonal code in the plurality of formats set based on the type and the sequence length of the orthogonal code determined by the control section; and a transmission section that transmits the spread ACK/NACK symbols using the determined format. | 02-14-2013 |
20130040689 | WIRELESS COMMUNICATION DEVICE AND METHOD FOR CONTROLLING TRANSMISSION POWER - Disclosed is a wireless communication device that can suppress an increase in power consumption of a terminal while preventing the degradation of SINR measurement precision resulting from TPC errors in a base station. A terminal ( | 02-14-2013 |
20130064212 | TERMINAL APPARATUS AND COMMUNICATION METHOD THEREOF - This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal ( | 03-14-2013 |
20130064227 | WIRELESS COMMUNICATION DEVICE, AND WIRELESS COMMUNICATION METHOD - Disclosed are a wireless communication method and device which can maintain frequency scheduling flexibility and improve system throughput performance. A Walsh sequence number determination unit ( | 03-14-2013 |
20130072242 | WIRELESS TRANSMISSION DEVICE, WIRELESS RECEPTION DEVICE, AND BANDWIDTH ALLOCATION METHOD - Provided are a wireless transmission device, a wireless reception device, and a bandwidth allocation method for, when non-contiguous bands allocation is performed, improving the frequency resource use efficiency of a system and thereby improving the system performance. RIV decoding unit ( | 03-21-2013 |
20130077560 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - To improve the channel estimation accuracy of “DL grant” that instructs data allocation of a downlink of R-PDCCH. A wireless communication apparatus according to an aspect of the invention includes a receiver that is configured to receive a control signal, and a blind decoder that is configured to perform a blind decoding of a plurality of adjacent physical, resource blocks (PRBs) in which the same preceding is used in a unit of an RB group (RBG) that is composed of the plurality of PRBs, and to detect a resource area to which a control signal for the wireless communication apparatus that is included in the control signal is allocated. | 03-28-2013 |
20130089056 | WIRELESS COMMUNICATION APPARATUS, ALLOCATED RESOURCE NOTIFYING METHOD AND DATA ALLOCATING METHOD - Provided are a radio transmission apparatus and a radio transmission method whereby the increase of number of signaling bits can be suppressed and further the flexibility of frequency scheduling can be improved. A notified RBG calculating unit ( | 04-11-2013 |
20130094349 | TERMINAL APPARATUS, BASE STATION APPARATUS, RETRANSMISSION METHOD AND RESOURCE ALLOCATION METHOD - This invention provides a terminal apparatus that can suppress the quality degradation caused by a propagation path variation when implementing a retransmission control method using non-adaptive HARQ in a wireless communication system utilizing the MIMO communication technique. In this apparatus, a number-of-retransmissions counting unit ( | 04-18-2013 |
20130100921 | BASE STATION, TERMINAL, SEARCH SPACE SETTING METHOD AND DECODING METHOD - The invention provides a base station that does not cause the number of blind decodings to be increased and further can prevent the flexibility of resource allocation from degrading. A search space setting unit ( | 04-25-2013 |
20130114564 | TRANSMITTER APPARATUS, RECEIVER APPARATUS, TRANSMISSION METHOD, AND NOTIFICATION METHOD - This invention relates to a transmitter apparatus, a receiver apparatus, a transmission method and a notification method that, when a switching between MIMO communication and non-MIMO communication is performed, can suppress the increase of an SRS (Sounding Reference Signal) resource, while suppressing the degradation of trackability of temporal variation of a channel. In a terminal ( | 05-09-2013 |
20130121202 | RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD - A CIR measuring section measures CIRs of all blocks received and a block selection section makes a threshold decision based on the CIR measurement result and threshold information according to an amount of traffic in the own cell and neighboring cells. As a result of the threshold decision, blocks whose CIRs exceed the threshold are regarded as usable blocks. A CIR averaging section averages the CIRs of the usable blocks and a CQI generation section generates a CQI based on the CIR average value. The CQI generated and selected block numbers are reported to a base station apparatus. This allows the throughput of the own cell and neighboring cells to be improved. | 05-16-2013 |
20130121295 | BASE STATION DEVICE, TERMINAL DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD - A base station device causing no decrease in system throughput and guaranteeing the reception quality at a terminal when a DCI directed toward the terminal is mapped to a PDCCH region and an R-PDCCH region. A search space setting unit ( | 05-16-2013 |
20130121445 | 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 extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part. A GI extracting part extracts, from the signal subjected to the radio reception process by the received RF part, GI having a length determined by an extracted GI length deciding part. The extracted GI is adjusted by a data position adjusting part such that its rear end coincides with the read end of the extracted data portion. A combining part combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part, which equalizes the signal distortions of the combined signal on the frequency axis. | 05-16-2013 |
20130128849 | CONTROL CHANNEL SIGNALING USING A COMMON SIGNALING FIELD FOR TRANSPORT FORMAT AND REDUNDANCY VERSION - The invention relates to a method for providing control signalling associated to a protocol data unit conveying user data in a mobile communication system and to the control channel signal. The invention also provides a mobile station and a base station and their respective operation in view of the newly defined control channel signals. To reduce the control channel overhead, the invention suggests defining a common field for the transport format and redundancy version in the control channel information format. According to one approach, the common field is used to jointly encode transport format and redundancy version therein. According to another aspect, one shared field is provided on the control channel signal that indicates either a transport format or a redundancy version depending of whether the control channel signal relates to an initial transmission or a retransmission. In another embodiment, further enhancements to a HARQ protocol are suggested for addressing certain error cases. | 05-23-2013 |
20130128856 | BASE STATION, MOBILE STATION, METHOD FOR TRANSMITTING CALCULATION PARAMETERS FOR POWER HEADROOM, AND METHOD FOR TRANSMITTING POWER HEADROOM - Provided are a base station, a mobile station, a method for transmitting calculation parameters for a power headroom and a method for transmitting a power headroom capable of increasing the accuracy of link adaptation by reducing the probability that a power headroom value is out of a reported range. In a base station ( | 05-23-2013 |
20130136088 | INTEGRATED CIRCUIT FOR COMMUNICATION RESOURCE ALLOCATION - 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 ( | 05-30-2013 |
20130136095 | BASE STATION, TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD - Provided are a base station, whereby the erroneous detection of control information can be reduced, thereby preventing the degradation of the system throughput. A base station ( | 05-30-2013 |
20130142153 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus is capable of improving communication efficiency by reducing the amount of control information transmitted. A channel quality information extraction section extracts CQI's from a received signal. An allocation control section allocates subcarriers for every communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied for each communication terminal apparatus based on required transmission rate information, etc. and CQI's for communication terminal apparatus of each user. A required subcarrier number determining section decides the number of subcarriers allocated to every communication terminal apparatus so as to satisfy the required transmission rate for each communication terminal apparatus. A required subcarrier number information generating section generates information for the number of subcarriers allocated to every communication terminal apparatus. A subcarrier allocation section allocates packet data to selected subcarriers. Modulating sections adaptively modulate packet data allocated to each subcarrier. | 06-06-2013 |
20130142160 | TERMINAL DEVICE, BASE STATION DEVICE, RETRANSMISSION METHOD, AND RESOURCE ALLOCATION METHOD - The present invention provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator ( | 06-06-2013 |
20130148602 | TERMINAL RECEIVING RESOURCE BLOCK ALLOCATION AND METHOD THEREFOR - In a wireless communication base station device, a modulation unit carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit allocates the Dch data symbol and Lch data symbol to each sub-carrier composing an OFDM symbol and outputs the allocated sub-carrier to a multiplex unit. In this case, the allocation unit allocates the Dch data symbol to a plurality of resource blocks where one Dch is arranged at an interval equal to integral multiples of the number of resource blocks composing a resource block group. | 06-13-2013 |
20130148623 | BASE STATION, TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD - Provided are a base station, a terminal whereby erroneous detection of control information can be reduced to prevent the degradation of the system throughput. A PDCCH generation unit ( | 06-13-2013 |
20130155990 | BASE STATION AND CONTROL INFORMATION TRANSMISSION METHOD - This base station is capable of suppressing degradation of data throughput even when a DCI for a terminal connected to the base station is transmitted via an R-PDCCH region. In this base station, a PDCCH generation unit ( | 06-20-2013 |
20130155996 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD AND RECEIVING METHOD - A base station ( | 06-20-2013 |
20130157665 | TERMINAL AND QUALITY TRANSMISSION METHOD - Provided is a terminal that achieves appropriate handover control even in a case where a cell group in which downstream communication is performed by coordination between a plurality of cells is included in a communication system. According to the terminal ( | 06-20-2013 |
20130170466 | COMMUNICATION DEVICE AND COMMUNICATION METHOD - A communication device and a communication method capable of suppressing an increase of bits used for a request to send a reference signal and flexibly setting a resource used for sending a reference signal. In a base station ( | 07-04-2013 |
20130170467 | TRANSMITTER APPARATUS, RECEIVER APPARATUS, TRANSMISSION METHOD, AND RECEPTION METHOD - In a terminal ( | 07-04-2013 |
20130176972 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND CONTROL CHANNEL ALLOCATION METHOD - A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part ( | 07-11-2013 |
20130215811 | WIRELESS COMMUNICATION TERMINAL DEVICE AND POWER ALLOCATION METHOD - Provided are a wireless communication terminal device and a power allocation method, wherein transmission channel quality information, regarding a Pcell having a high probability that UCI is multiplied therein, can be accurately estimated by an SRS having high priority in power allocation, and an eNB can instruct appropriate transmission power to an UL channel which transmits the subsequent UCI. A power scaling detection unit ( | 08-22-2013 |
20130235826 | BASE STATION APPARATUS AND TRANSMISSION 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 can communicate by using a plurality of downlink unit bands and a smaller number of uplink unit bands. A control unit allocates uplink resource allocation information and downlink resource allocation information to a PDCCH which is arranged in each of the plurality of downlink unit bands, and allocates a response signal to the uplink line data to a PHICH which is arranged in the same number of downlink unit bands from the plurality of downlink unit bands as there are uplink unit bands. A transmit RF unit transmits the resource allocation information or the response signal. | 09-12-2013 |
20130251002 | TERMINAL APPARATUS AND COMMUNICATION METHOD - In order to reduce interference between cells through hopping and use frequencies in a good propagation situation, a scheduler section carries out scheduling for determining to which user data should be sent using CQI from each communication terminal apparatus, selects a user signal to be sent in the next frame and determines in which subcarrier block the data should be sent. Au MCS decision section selects a modulation scheme and coding method from the CQI of the selected user signal. A subcarrier block selection section selects a subcarrier block instructed by the scheduler section | 09-26-2013 |
20130329667 | CONFIGURATION OF CONTROL CHANNELS IN A MOBILE COMMUNICATION SYSTEM - The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, the size of the control channel information is aligned by means of modulation and/or coding, however the control channel information is aligned to one out of a set of numbers of coded control channel information bits and/or modulation symbols for each control channel. | 12-12-2013 |
20140029556 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe. | 01-30-2014 |
20140064205 | SEARCH SPACE FOR UPLINK GRANT IN AN AGGREGATED-CARRIER MOBILE COMMUNICATION SYSTEM - The present invention relates to transmitting and receiving of control information in a system supporting carrier aggregation. A search space for control information is configured in such a way that at least two search spaces determined by respective component carriers are on a first slot of a subframe and a further search space determined by a further component carrier is on a second slot, wherein at least one candidate of search spaces in the first slot is mapped in a same resource block pair with at least one candidate of a search space in the second slot. | 03-06-2014 |
20140185590 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - When an Ack/Nack signal is transmitted from a user terminal to a base station in an upstream control channel by using an Ack/Nack resource, the signal is code-multiplexed by using a code sequence containing an orthogonal sequence and a cyclic-shifted sequence and transmitted from a plurality of user terminals to the base station. If an aggregation size indicating the number of control signals of the downstream control channel is greater than one, it is determined that no resource located at the right of the axis of the cyclic-shifted amount of the cyclic-shifted sequence in the same orthogonal code of the orthogonal sequence is used, and the Ack/Nack signal to which CDD is applied from a plurality of antennas is transmitted by using a resource ACK #0 allocated to the own device and an unused resource ACK #1, which have the same orthogonal code, but have different cyclic-shifted amounts. | 07-03-2014 |
20140254452 | ACTIVE BANDWIDTH INDICATOR FOR POWER-SAVING UES - The present invention relates to a terminal and a base station, and to a receiving and transmitting method to be performed at the terminal and the base station, respectively. In particular, the present invention relates to power consumption reduction by providing two operation bandwidths for a terminal, one being a cell-bandwidth, a bandwidth in which the cell may operate and the other one is a bandwidth, lower than the cell-bandwidth and called power-saving bandwidth. The terminal may perform the initial cell search including reception of the system information in the cell bandwidth and perform other reception/transmission/monitoring operation(s) in the power-saving bandwidth. Accordingly, a low-cost terminal implementation is enabled, which is particularly advantageous for the machine communication terminals. | 09-11-2014 |
20140254571 | RANDOM ACCESS METHOD, RADIO COMMUNICATION TERMINAL DEVICE, RECEIVING METHOD, AND BASE STATION APPARATUS - Random access technology is provided for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. A RACH sub-channel allocation unit allocates a transmission packet input from a replication unit to an arbitrary sub-carrier at the RACH arbitrary time slot at random. An allocation unit judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit. | 09-11-2014 |
20140269568 | Base Station Apparatus, Mobile Station Apparatus, Method for Mapping a Response Signal, and Method for Determining a Response Signal Resource - Provided is a radio communication base station device which can obtain a maximum frequency diversity effect of a downstream line control channel. The device includes: an RB allocation unit ( | 09-18-2014 |
20150078195 | RADIO RECEPTION APPARATUS, RADIO TRANSMISSION APPARATUS, AND RADIO COMMUNICATION METHOD - Where first and second reference signals for a first and second communication system, respectively, are transmitted, resources that affect a reception apparatus compatible only with the first communication system can be minimized, and the throughput can be prevented from being deteriorated. As resources for a reference signal CSI-RS for LTE-A, last half symbols in a time direction of a resource unit RB/Sub-frame defined in a frequency-time domain are used, and the CSI-RS is allocated in a position up to the last two symbols or in the last symbol, or the like, of a particular RB/Sub-frame and transmitted when a reference signal 4RS for LTE is transmitted to a reception apparatus in addition to transmitting CSI-RS for LTE-A. The reception apparatus receives CSI-RS allocated in the last half symbol of RB/Sub-frame based on CSI-RS allocation information, measures channel quality by using this CSI-RS, and transmits and reports feedback information. | 03-19-2015 |