Patent application number | Description | Published |
20080259854 | Communication Terminal Apparatus, Base Station Apparatus, and Resource Assigning Method - A communication terminal apparatus of wireless communication system wherein the data amount of report values is reduced and the accuracy of the report values is enhanced in OFDM wireless communication. In a communication terminal apparatus ( | 10-23-2008 |
20090010211 | BASE STATION APPARATUS AND RESOURCE ASSIGNING METHOD - A base station apparatus that selects an optimum MCS level so as to improve system throughput. In this base station apparatus, a terminal rank detecting part ( | 01-08-2009 |
20090046787 | TRANSMITTING APPARATUS, RECEIVING APPARATUS, AND WIRELESS COMMUNICATION METHOD - A transmitting apparatus, a receiving apparatus and a wireless communication method for suppressing interference between codes, while further reducing the ratio of redundant components occupying a signal to improve the transmission efficiency. The transmitting apparatus ( | 02-19-2009 |
20090052392 | RETRANSMISSION CONTROL METHOD, BASE STATION AND MOBILE STATION - A base station, a mobile station and a retransmission control method for enabling communication to be more efficiently performed. In a communication system comprising a base station ( | 02-26-2009 |
20090067329 | LINE QUALITY REPORT METHOD, BASE STATION DEVICE, AND COMMUNICATION TERMINAL - There is provided a base station device for suppressing increase of current consumption at a communication terminal by a line quality information report used for resource allocation of a downstream line and increase of interference of the upstream line traffic. The base station device reports whether a terminal performing communication which may be delayed, to each communication terminal (ST | 03-12-2009 |
20090147869 | COMMUNICATION TERMINAL APPARATUS, BASE STATION APPARATUS AND RECEPTION QUALITY REPORTING METHOD - A communication terminal apparatus that can eliminate the waste of reception quality report, suppress the interference of an upstream network, perform an optimum assignment using a scheduling, prevent the loss of resources, and ensure the fairness of transmission assignment using the scheduling. In this apparatus, a reception quality determining part ( | 06-11-2009 |
20100041413 | RADIO BASE STATION DEVICE, RADIO TERMINAL DEVICE, AND RADIO COMMUNICATION SYSTEM - It is possible to provide a radio communication system, a radio base station device, and a radio terminal device capable of reducing the power consumption in a radio terminal device without thinning pilot signals used for measuring upstream line quality. In the radio base station device ( | 02-18-2010 |
20100211844 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - Lowering of the frequency use efficiency and throughput is prevented while the blanking advantage is provided at the retransmission time in MCW using a plurality of streams per codeword. In a wireless communication apparatus for using a plurality of streams per codeword and performing data transmission according to a plurality of codewords, when two codewords are transmitted using four streams, for example, from a base station | 08-19-2010 |
20100218066 | ENCODING DEVICE AND DECODING DEVICE - Disclosed are an encoding device and a decoding device which can effectively reduce the decoding failure frequency in LDPC encoding/decoding. A loss correction encoding device ( | 08-26-2010 |
20100222003 | RADIO COMMUNICATION SYSTEM, RADIO BASE STATION DEVICE, AND TRANSMISSION CONTROL METHOD - It is possible to provide a transmission control method, a radio communication system, and a radio base station device which can reduce the time required until an inter-cell interference is reduced so as to improve the system throughput. A base station ( | 09-02-2010 |
20100254485 | PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE - It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which communicates with the MIMO transmission device. The MIMO transmission device ( | 10-07-2010 |
20100260235 | PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, MIMO RECEPTION DEVICE WHICH PERFORMS COMMUNICATION WITH MIMO TRANSMISSION DEVICE - It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which performs communication with the MIMO transmission device. The MIMO transmission device ( | 10-14-2010 |
20100260284 | PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE - Provided is a MIMO transmission device which can effectively perform a pilot transmission by using a surplus sample generated in a pilot symbol while maintaining the pilot separation accuracy at a reception side. The MIMO transmission device ( | 10-14-2010 |
20100272034 | BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, CHANNEL ESTIMATION METHOD, TRANSMISSION ANTENNA DETECTION METHOD, AND PROGRAM - It is possible to provide a base station device, a mobile station device, a communication system, a channel estimation method, a transmission antenna detection method, and a program which can employ PVS as the SCH transmission diversity method and avoid a side lobe to improve the adjacent cell search performance. When employing the PVS on the frequency axis of the SCH in these, different precoding weights are applied between sub carrier groups so as to correlate a plurality of PSC sequences to a precoding weight matrix and identify the PSC sequence. Moreover, the number of sub carriers to be allocated to sub carrier groups is correlated to the number of transmission antennas so as to detect periodicity of the self-correlation characteristic of a reception SCH signal, thereby identifying the number of transmission antennas. | 10-28-2010 |
20100284487 | WIRELESS TRANSMISSION DEVICE AND WIRELESS TRANSMISSION METHOD - A wireless transmission method for improving the reception characteristic of a preamble. The wireless transmission method allows the patterns of subcarriers (transmitting antenna Tx | 11-11-2010 |
20100296461 | RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION TERMINAL DEVICE, AND RADIO COMMUNICATION METHOD - Disclosed are a radio communication base station device, a radio communication terminal device, and a radio communication method which can reduce interference between adjacent resource blocks even when the DL timing is overlapped with the UL timing at the boundary between an independent allocation band and a cooperation allocation band. When a terminal A is allocated for a UL resource block of the cooperation allocation band serving as a band boundary with the independent allocation band, in ST | 11-25-2010 |
20110164519 | POWER HEAD ROOM REPORTING METHOD AND MOBILE STATION DEVICE - Disclosed are a control signal transmitting method and mobile terminal device capable of switching between a plurality of terminal communication modes having different maximum transmissible power values with a high degree of precision, while suppressing increases in signaling overhead. In a mobile station ( | 07-07-2011 |
20110167312 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method which can reduce the transmission packet collision generation ratio even when no resource allocation signal is detected in retransmission. When control information outputted from a decoding unit ( | 07-07-2011 |
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 |
20110216845 | RADIO COMMUNICATION DEVICE AND RADIO COMMUNICATION METHOD - Provided is a radio communication device which can separate propagation paths of antenna ports and improve a channel estimation accuracy even when using virtual antennas. The device includes: a mapping unit ( | 09-08-2011 |
20110222525 | TERMINAL DEVICE, BASE STATION DEVICE, AND FREQUENCY RESOURCE ALLOCATION METHOD - It is possible to realize reduction of inter-cell interference by an adaptive FFR with a low delay. A terminal ( | 09-15-2011 |
20110243027 | MOBILE STATION APPARATUS, COMMUNICATION METHOD, AND BASE STATION APPARATUS - A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device ( | 10-06-2011 |
20110273997 | RADIO COMMUNICATION SYSTEM, SCHEDULING METHOD, RADIO BASE STATION DEVICE, AND RADIO TERMINAL - A radio communication system, scheduling method, radio base station device, and radio communication terminal all enabling improvement of the system throughput. The radio base station device ( | 11-10-2011 |
20110274073 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND TRANSMISSION METHOD - A base station able to maintain backward compatibility with an LTE mobile station while minimizing the amount of increase in uplink scheduling information reception and demodulation/decoding processing in independent uplink/downlink cell data transmission. A wireless communication system includes a cell # | 11-10-2011 |
20120063343 | WIRELESS COMMUNICATION TERMINAL AND COMMUNICATION METHOD - To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station. | 03-15-2012 |
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 |
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 |
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 |
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 |
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 |
20130028098 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Provided are a wireless communication apparatus and a wireless communication method capable of reducing power consumption without delay of data transmission and reception. The wireless communication apparatus according to the invention includes a reception unit which receives a DRX instruction information destined for the wireless communication apparatus and a monitor process number including a sub-frame number used to monitor a PDCCH destined for the wireless communication apparatus; and a monitoring process unit which monitors the PDCCH destined for the wireless communication apparatus using only sub-frames set based on the sub-frame number, when receiving an instruction to perform a DRX process by the DRX instruction information. | 01-31-2013 |
20130028217 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - Provided are a wireless communication apparatus and a wireless communication method capable of reducing distortion of a CSI-RS and interference with other CSI-RSs. The wireless communication apparatus according to the invention includes: a CSI-RS generation section that generates CSI-RSs, an arrangement section that arranges the CSI-RSs in a single or a plurality of consecutive OFDM symbols located between a plurality of OFDM symbols, in which a signal other than the CSI-RS is arranged, and adjacent to the plurality of OFDM symbols in which the signal other than the CSI-RS is arranged; and a transmission section that transmits a signal other than the CSI-RS arranged by the arrangement section and a transmission signal including the CSI-RS. | 01-31-2013 |
20130094419 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes # | 04-18-2013 |