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    • 62. 发明授权
    • Radio transmitting apparatus and multicarrier signal generating method
    • 无线电发射装置和多载波信号产生方法
    • US08073065B2
    • 2011-12-06
    • US12159376
    • 2006-12-25
    • Kenichi MiyoshiHidetoshi SuzukiAkihiko NishioDaichi Imamura
    • Kenichi MiyoshiHidetoshi SuzukiAkihiko NishioDaichi Imamura
    • H04K1/10
    • H04L1/0041H04L1/0067H04L1/0071H04L1/04H04L1/08H04L5/0007H04L5/0046H04L27/2647
    • A base station allowing mobile stations to efficiently remove interference signals. In this base station (100), an encoding part (101) performs an error correction encoding of transport data to generate a bit sequence comprising systematic bits and parity bits; a repetition part (102) 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 (101), so as to perform a rate matching; a modulating part (103) modulates, after the repetition, the bit sequence to generate symbols; an S/P part (104) parallel converts the symbols serially inputted from the modulating part (103) and then outputs them to an IFFT part (105); and the IFFT part (105) performs an IFFT processing of the symbols inputted from the S/P part (104) and then maps them onto subcarriers in accordance with a predetermined mapping pattern, thereby generating OFDM symbols.
    • 基站允许移动台有效地去除干扰信号。 在该基站(100)中,编码部(101)进行传输数据的纠错编码,生成包含系统比特和奇偶校验位的比特序列; 重复部分(102)作为重复对象重复由编码部分(101)生成的比特序列中包括的多个比特中的奇偶校验位,以便执行速率匹配; 调制部分(103)在重复之后调制比特序列以产生符号; S / P部分(104)并行转换从调制部分(103)串行输入的符号,然后将其输出到IFFT部分(105); 并且IFFT部分(105)对从S / P部分(104)输入的符号进行IFFT处理,然后根据预定的映射模式将它们映射到子载波上,从而生成OFDM符号。
    • 63. 发明授权
    • Radio communication apparatus and radio communication method
    • 无线电通信装置和无线电通信方法
    • US08073061B2
    • 2011-12-06
    • US11576133
    • 2005-09-29
    • Ayako HoriuchiAkihiko Nishio
    • Ayako HoriuchiAkihiko Nishio
    • H04K1/10H04L27/28H04L27/00
    • H04B7/15542H04L5/0007H04L5/0046H04L5/0048H04L5/006
    • There is provided a radio communication device capable of suppressing increase of power consumption of a relay station device. In this device, a channel information extraction unit (31) extracts channel information (channel information in the mobile station device of the signal transmitted from the base station device) from the reception signal from a base station device; a sub carrier selection unit (32) selects a sub carrier of low received quality according to the channel information; a relay data extraction unit (33) extracts data to be relay-transmitted according to the selection result in the sub carrier selection unit (32); and a sub carrier allocation unit (35) allocates data to be relay-transmitted to the sub carrier for relay transmission.
    • 提供了能够抑制中继站装置的电力消耗增加的无线通信装置。 在该装置中,信道信息提取部(31)从基站装置的接收信号中提取信道信息(移动台装置中从基站装置发送的信号中的信道信息) 子载波选择单元(32)根据信道信息选择低接收质量的子载波; 中继数据提取单元(33)根据子载波选择单元(32)中的选择结果提取要中继发送的数据; 并且子载波分配单元(35)将中继发送的数据分配给副载波用于中继传输。
    • 66. 发明授权
    • Wireless communication base station apparatus, wireless communication mobile station apparatus, and method for mapping response signal in ARQ
    • 无线通信基站装置,无线通信移动台装置以及ARQ中的响应信号映射方法
    • US08027278B2
    • 2011-09-27
    • US12524660
    • 2008-01-31
    • Masaru FukuokaAkihiko NishioKatsuhiko HiramatsuKenichi KuriDaichi Imamura
    • Masaru FukuokaAkihiko NishioKatsuhiko HiramatsuKenichi KuriDaichi Imamura
    • H04B7/005
    • H04L1/1893H04L27/34
    • In ARQ where a plurality of mobile stations share and use a single channel for response signals (ACK/NACK signals), a wireless communication base station apparatus can prevent failure of the ARQ control. In this apparatus, a CRC part (114) performs an error detection using CRC for an uplink data, and generates, as a response signal, an ACK signal in a case of CRC=OK or a NACK signal in a case of CRC=NG. A retransmittal determining part (115) determines whether the response signal is for an initially transmitted data or for a retransmitted data. A constellation control part (116) controls, in accordance with a determination result of the retransmittal determining part (115), a constellation pattern to be used in a modulation in a modulating part (105). The modulating part (105) modulates the response signal for the retransmitted data in accordance with the constellation pattern controlled by the constellation control part (116), that is, a constellation pattern obtained by reversing the constellation pattern of the response signal for the initially transmitted data.
    • 在多个移动站共享并使用单个信道作为响应信号(ACK / NACK信号)的ARQ中,无线通信基站装置能够防止ARQ控制失败。 在该装置中,CRC部分(114)对于上行链路数据执行CRC校验的错误检测,在CRC = OK的情况下生成ACK信号作为响应信号,在CRC = NG的情况下,生成NACK信号 。 重传确定部分(115)确定响应信号是针对最初发送的数据还是用于重传的数据。 星座控制部分(116)根据重传确定部分(115)的确定结果,控制要在调制部分(105)中的调制中使用的星座图案。 调制部分(105)根据由星座控制部分(116)控制的星座图案调制重发数据的响应信号,即通过反转最初发送的响应信号的星座图案而获得的星座图案 数据。
    • 67. 发明申请
    • WIRELESS BASE STATION, WIRELESS TERMINAL, AND CHANNEL SIGNAL FORMATION METHOD
    • 无线基站,无线终端和信道信号形成方法
    • US20110222503A1
    • 2011-09-15
    • US13131480
    • 2009-12-25
    • Seigo NakaoAkihiko NishioDaichi Imamura
    • Seigo NakaoAkihiko NishioDaichi Imamura
    • H04W72/00
    • H04L5/0023H04B7/0456H04B7/0639H04L5/0053H04L5/006H04W28/04H04W28/06H04W72/04H04W72/042H04W88/08
    • 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 (100), a control unit (101) and a data size regulation unit (103) control the data size of downstream assignment control data and upstream assignment control data contained in the PDCCH signal based on the communication format used between the base station (100) and a terminal (200), the number of antennas (M) (nonnegative number) on the base station (100), the number of antennas (N) (nonnegative number) on the terminal (200), the bandwidth of the downstream band, and the bandwidth of the upstream band. Specifically, the control unit (101) determines it is unnecessary to adjust the aforementioned data size when the selected communication format is first established between multiple antennas and when where there are multiple for one of M and N and only one for the other.
    • 公开了能够防止下游分配控制数据的质量下降的无线基站,无线终端和信道信号形成方法,同时防止在下游控制信道的接收侧的无线终端上的盲确定次数增加 信号。 在基站(100)中,控制单元(101)和数据大小调节单元(103)根据在PDCCH信号中使用的通信格式来控制下行分配控制数据的数据大小和上行分配控制数据 基站(100)和终端(200),基站(100)上的天线数(M)(非负数),终端(200)上的天线数(N)(非负数),终端 下行频带的带宽和上行频带的带宽。 具体地说,当在多个天线之间首次建立所选择的通信格式,以及当M和N中的一个存在多个时,并且仅对于另一个天线之一,则控制单元(101)确定不需要调整上述数据大小。
    • 69. 发明申请
    • BASE STATION APPARATUS PROVIDING RESOURCE BLOCK ALLOCATION AND METHOD THEREFOR
    • 基站提供资源块分配及其方法
    • US20110211545A1
    • 2011-09-01
    • US13104336
    • 2011-05-10
    • Akihiko NISHIOChristian WENGERTERHidetoshi SUZUKIKatsuhiko HIRAMATSU
    • Akihiko NISHIOChristian WENGERTERHidetoshi SUZUKIKatsuhiko HIRAMATSU
    • H04W72/04
    • H04W72/0453H04L5/0007H04L5/001H04L5/0042H04L5/0053H04W72/00H04W72/04H04W72/042H04W72/044
    • 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 (12) carries out modulation processing for Dch data after coding to generate a Dch data symbol. A modulation unit (22) carries out modulation processing for Lch data after coding to generate an Lch data symbol. An allocation unit (103) 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 (104). In this case, the allocation unit (103) 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.
    • 本发明的目的是提供一种无线通信基站装置,其能够防止由于在频率调度发送时的用于进行频率分集发送的信道的通信资源的利用效率的劣化而导致的系统吞吐量的下降 频率分集传输在多载波通信中同时进行。 在无线通信基站装置中,调制部(12)对编码后的Dch数据进行调制处理,生成Dch数据符号。 调制单元(22)对编码后的Lch数据进行调制处理,生成Lch数据符号。 分配单元(103)将Dch数据符号和Lch数据符号分配给构成OFDM符号的每个子载波,并将所分配的子载波输出到多路复用单元(104)。 在这种情况下,分配单元(103)将Dch数据符号分配给多个资源块,其中一个Dch以等于构成资源块组的资源块的数量的整数倍的间隔排列。
    • 70. 发明授权
    • OFDM signal collision position detection apparatus and OFDM reception apparatus
    • OFDM信号碰撞位置检测装置和OFDM接收装置
    • US08000226B2
    • 2011-08-16
    • US12573812
    • 2009-10-05
    • Kenichi MiyoshiAkihiko Nishio
    • Kenichi MiyoshiAkihiko Nishio
    • H04J11/00
    • H04L1/0057H04B1/715H04B2001/7152H04L1/0045H04L5/023H04L27/2647
    • 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.
    • 导频接收功率测量部分测量导频符号的接收功率,并且数据部分接收功率预测部分基于导频符号的接收功率来预测数据符号的接收功率。 功率比较部分计算该预测值与数据符号的实际接收功率之间的差值,并且当差值大时,冲突位置检测部分将跳频位置处的数据符号与其他小区中的数据符号相冲突。 然后,纠错解码部通过减少检测到的涉及碰撞的数据符号的可能性来进行纠错处理,从而可以提高解码数据的错误率特性。