Patent application number | Description | Published |
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 |
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 |
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 |
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 |
20090252092 | WIRELESS COMMUNICATION METHOD, COMMUNICATION TERMINAL APPARATUS, AND WIRELESS COMMUNICATION SYSTEM - A communication terminal apparatus and the like wherein even under an environment that the propagation path characteristic is different for each of frequency bands of OFDM signals, the error rates of all the frequency bands are reduced to improve the communication rate. In this apparatus, a connection destination deciding part ( | 10-08-2009 |
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 |
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 |
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 |
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 |
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 |
20110051856 | WIRELESS TRANSMISSION DEVICE, WIRELESS RECEPTION DEVICE, AND SYMBOL ARRANGING METHOD - A wireless transmission device enabled to improve an error rate performance at a receiver, by acquiring at least one of frequency diversity effect and a time diversity effect while keeping the interference resistance which is acquired by diffusion. In this transmission device, a modulation unit ( | 03-03-2011 |
20110134850 | BASE STATION DEVICE AND TERMINAL DEVICE - A base station ( | 06-09-2011 |
20110161772 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - Disclosed is a wireless communication device capable of always obtaining the optimum error rate characteristic and of keeping the number of retransmissions to a minimum for IR-based HARQ which uses LDPC encoding in the error correction encoding. With the device, an RV control unit ( | 06-30-2011 |
20110197106 | WIRELESS TRANSMISSION DEVICE, WIRELESS RECEIVING DEVICE, AND METHOD FOR TRANSMITTING ENCODED DATA - Disclosed are a wireless transmission device, wireless receiving device, and method for transmitting encoded data with which power consumption can be reduced at the receiving end in accordance with reception conditions, while resource-saving is maintained by employing an erasure correcting code (ECC). In a wireless communication device ( | 08-11-2011 |
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 |
20110255461 | TRANSMISSION EQUIPMENT AND METHOD FOR SENDING CONTROL MESSAGES - Disclosed are transmission apparatus and a method for sending control information in which the processing time and power consumption at the reception side are reduced by improving the efficiency of reception processing at the reception side. At a base station ( | 10-20-2011 |
20110296275 | WIRELESS TRANSMISSION APPARATUS, WIRELESS RECEPTION APPARATUS, TRANSMISSION DATA FORMATION METHOD, AND DATA RECEPTION METHOD - A wireless reception apparatus ( | 12-01-2011 |
20120014244 | BASE STATION, MOBILE STATION, PILOT TRANSMISSION METHOD, AND CHANNEL ESTIMATION METHOD - Disclosed are a base station, a mobile station, a pilot transmission method, and a channel estimation method, whereby excellent zone interference blocking characteristics can be obtained and high channel estimation precision is ensured even on a propagation path with low frequency correlation similar to when transmitting on an SFN of an MBS. A pilot symbol generating unit ( | 01-19-2012 |
20120033752 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - To lessen a disparity in stream mapping of transmission data when modulation data are mapped into a plurality of streams and when the plurality of streams are transmitted and received. In a wireless communication device, a stream mapper ( | 02-09-2012 |
20120099555 | TERMINAL APPARATUS, BASE STATION APPARATUS, FEEDBACK METHOD AND RETRANSMISSION CONTROL METHOD - Disclosed are a terminal apparatus and a base station apparatus wherein the collision of the response signals of a plurality of terminals can be avoided. A response control unit ( | 04-26-2012 |
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 |
20120155354 | WIRELESS COMMUNICATION APPARATUS AND RESPONSE CONTROL METHOD - A wireless communication apparatus and a response control method wherein in a case of applying Persistent Allocation (PA) to MU-MIMO, the increase in the resources to be used in the feedback can be precluded. In a terminal, a response control unit causes, based on the type of downstream allocation control information, on an error detection result obtained by an error detecting unit and on a response rule table, a response signal to be transmitted by use of an upstream response resource designated in the downstream allocation control information. In the response rule table used in reception of a notification of MU-MIMO reallocation, respective different types of response signals are associated with a first case where there are no errors in the received downstream data of the designated resource designated in the downstream allocation control information received before that notification, a second case where the notification of MU-MIMO reallocation is successfully received and further there are no errors in the received downstream data of the designated resource, and a third case where the notification of MU-MIMO reallocation is not successfully received and further there are any errors in the received downstream data of the designated resource. | 06-21-2012 |
20120287855 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - A high error correction capability is kept while reducing a processing delay in application of the ECC in a multi-radio. A wireless communication device for performing data transmission by using a plurality of radio systems RAT | 11-15-2012 |
20120320861 | WIRELESS COMMUNICATIONS DEVICE AND DATA REDISTRIBUTION METHOD - A wireless communications device that transmits a multiplexed signal of a plurality of data sets of different sizes to a communications terminal includes an empty resource block detection section, which detects empty resource blocks of the data sets each of which does not use any of a predetermined number of resource blocks, from among the plurality of data sets whereto the predetermined number of resource blocks are allocated in the time direction and the frequency direction; and a data redistribution section that redistributes a part of data that is distributed in resource blocks, with respect to the data sets whereto resource including empty resource blocks are allocated, in the vicinity of pilot symbols that are disposed within the empty resource blocks. It is possible to effectively utilize the function of all the pilot symbols and improve error rate characteristics. | 12-20-2012 |
20130010858 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHOD - When controlling transmission channel parameters and video encoding parameters so as to be linked to each other in video transmission, the video quality on the receiving side is further improved. As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the predicted value of the PHY transmission rate is larger than a determined reference value and increasing the GOP size when the predicted value of the PHY transmission rate is equal to or less than the determined reference value. | 01-10-2013 |
20130016770 | WIRELESS COMMUNICATION DEVICE AND WIRELESS COMMUNICATION METHODAANM Kishigami; TakaakiAACI TokyoAACO JPAAGP Kishigami; Takaaki Tokyo JPAANM Imamura; DaichiAACI KanagawaAACO JPAAGP Imamura; Daichi Kanagawa JPAANM Yoshii; IsamuAACI KanagawaAACO JPAAGP Yoshii; Isamu Kanagawa JP - As a parameter control unit that controls video encoding parameters regarding video encoding in a video encoding unit and transmission channel parameters regarding error correction coding and modulation in a channel coding/modulation unit so as to be linked to each other, a cross layer rate control unit is provided. The cross layer rate control unit performs variable control of the GOP size according to propagation changes by reducing the GOP size when the amount of change in the predicted value of the PHY transmission rate is larger than a determined amount of change and increasing the GOP size when the amount of change in the predicted value of the PHY transmission rate is equal to or less than the determined amount of change. | 01-17-2013 |
20130021981 | BASE STATION, MOBILE STATION, COORDINATED MOBILE STATION, TRANSMISSION METHOD AND RECEPTION METHOD - A base station (BS) which communicates with a plurality of mobile stations (MSs) is configured so as to comprise a control signal generation unit which generates control signals showing information on the allocation of resources for each of the plurality of mobile stations (MSs), and a transmission unit which transmits the control signals to the plurality of mobile stations (MSs). A control signal for a given mobile station (MS) includes information relating to another mobile station (MS). | 01-24-2013 |
20130163522 | WIRELESS COMMUNICATION DEVICE AND HYBRID AUTOMATIC REPEAT REQUEST TRANSMISSION METHOD - By reducing the overlap between HARQ subpackets transmitted by means of a transmitting MS and a cooperative MS, the disclosed method is capable of increasing gains in HARQ IR signal synthesis. The method transmits a hybrid automatic repeat request (HARQ) in a cooperative communication system formed so as to comprise a transmitting mobile station (MS) and a cooperative MS, and involves creating individual HARQ subpackets transmitted by means of the transmitting MS and the cooperative MS such that said subpackets are arranged in mutually opposite directions in a circular buffer. | 06-27-2013 |
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 |