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1. 发明专利

JP2010022056A Receiving apparatus 有权
标题翻译：接收装置
公开(公告)号：JP2010022056A
公开(公告)日：2010-01-28
申请号：JP2009243072
申请日：2009-10-22
申请人： Fujitsu Ltd , 富士通株式会社
发明人： HASEGAWA TAKESHI , DATEKI TAKASHI
IPC分类号： H04J11/00 , H04B1/10
摘要： PROBLEM TO BE SOLVED: To correctly perform channel estimation, by eliminating inter-symbol interference (ISI), enlarging an average value of FFT (Fast Fourier Transform) and reducing a rotation amplitude.
SOLUTION: The invention relates to a receiving apparatus, which applies FFT processing to a reception signal corresponding to a prescribed FFT window size to receive a transmission signal to which an orthogonal frequency division multiplexing is applied, including: a shift unit that shifts a second reception signal received temporally before a first reception signal to a position of a reception signal temporally after the first reception signal to obtain a reception signal corresponding to the prescribed FFT size; and an FFT processing section for applying FFT processing to the reception signal obtained by shifting due to the shift unit.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了正确地执行信道估计，通过消除符号间干扰（ISI），扩大FFT（快速傅里叶变换）的平均值并减小旋转振幅。解决方案本发明涉及对与规定的FFT窗口尺寸相对应的接收信号应用FFT处理以接收应用了正交频分复用的发送信号的接收装置，包括：移位单元，其移位在第一接收信号之前的时间上接收到在第一接收信号之后的接收信号的位置的第二接收信号，以获得对应于规定的FFT大小的接收信号; 以及FFT处理部，用于对由于移位单位的移位而获得的接收信号进行FFT处理。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008078773A Transmitter and receiver employing multicarrier transmission system 有权
标题翻译：发射机和接收机使用多媒体传输系统
公开(公告)号：JP2008078773A
公开(公告)日：2008-04-03
申请号：JP2006252964
申请日：2006-09-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： DATEKI TAKASHI
IPC分类号： H04B1/04 , H04B1/16 , H04J11/00
CPC分类号： H04L27/2604 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04L5/0064 , H04L27/2647
摘要： PROBLEM TO BE SOLVED: To provide a transmitter ensuring flexible adjustment in the transmission rate of a receiver while maintaining transmission efficiency when identical information such as broadcast information is transmitted, and to provide a receiver. SOLUTION: The transmitter comprises a means dividing the transmission frequency bandwidth into frequency blocks narrower than the receivable bandwidth of a receiver and setting the transmission rate in each frequency block to increase or decrease stepwise. The receiver receiving a signal at a transmission rate thus set comprises a means for receiving a signal in at least any one of a plurality of receiving sections provided so that at least one of frequency blocks included in a plurality of receiving sections 1-7 each having a receivable bandwidth within the transmission frequency bandwidth is also included in at least one other receiving section. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供发送接收机的传输速率灵活调整的发射机，同时在发送诸如广播信息的相同信息时保持传输效率，并提供接收机。解决方案：发射机包括将发射频率带宽分成比接收机的可接收带宽窄的频率块，并且将每个频率块中的传输速率设置为逐步增加或减小的装置。以这样设置的传输速率接收信号的接收机包括用于在多个接收部分中的至少任何一个中接收信号的装置，其被设置为使得包括在多个接收部分1-7中的频率块中的至少一个具有发送频带内的可接收带宽也包括在至少一个其他接收部分中。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008028818A Transmission apparatus, and method of creating sub frame 有权
标题翻译：传输装置和创建子帧的方法
公开(公告)号：JP2008028818A
公开(公告)日：2008-02-07
申请号：JP2006200596
申请日：2006-07-24
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SEYAMA TAKASHI , DATEKI TAKASHI , OGAWA DAISUKE , FURUKAWA HIDETO
IPC分类号： H04J11/00 , H04J1/00
CPC分类号： H04L27/2607 , H04L27/2662 , H04L27/2678
摘要： PROBLEM TO BE SOLVED: To detect a sub frame synchronizing timing by one correlator using a pilot symbol even when using a plurality of sub frames of different GI lengths together. SOLUTION: A transmission apparatus applies IFFT processing to a pilot signal, inserts a guard interval into a valid symbol obtained by the IFFT processing, and creates an OFDM symbol at the end of the sub frame and an OFDM symbol at the top of the next sub frame, respectively. When creating such a sub frame, the transmission apparatus creates the OFDM symbol at the end of the sub frame and the OFDM symbol at the top of the next sub frame so that samples of a predetermined number repeat before and after the sub frame synchronizing timing, and transmits the OFDM symbols by radio. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使当使用多个不同GI长度的子帧在一起时，也可以使用导频符号来检测一个相关器的子帧同步定时。解决方案：发送装置对导频信号应用IFFT处理，将保护间隔插入到通过IFFT处理获得的有效符号中，并且在子帧的结尾处创建OFDM符号，并在分别是下一个子帧。当创建这样的子帧时，传输设备在子帧结束处创建OFDM符号，并在下一子帧的顶部创建OFDM符号，使得预定数量的样本在子帧同步定时之前和之后重复，并通过无线发送OFDM符号。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2006197318A Mobile radio communication system and radio communication apparatus 有权
标题翻译：移动无线电通信系统和无线电通信设备
公开(公告)号：JP2006197318A
公开(公告)日：2006-07-27
申请号：JP2005007508
申请日：2005-01-14
申请人： Fujitsu Ltd , 富士通株式会社
发明人： DATEKI TAKASHI
IPC分类号： H04B7/26 , H04B1/69 , H04J13/00 , H04W52/02 , H04W52/04 , H04W52/14 , H04W52/60
CPC分类号： H04W52/286 , H04W52/58
摘要： PROBLEM TO BE SOLVED: To reduce power consumption in a mobile radio communication system comprising base stations and a mobile station, and radio communication apparatuses constituting the base stations and the mobile station.
SOLUTION: The mobile radio communication system and radio communication apparatuses comprise at least a movable radio communication apparatus among a plurality of radio communication apparatuses; multiplex channels comprising at least a traffic channel for transmitting packets, a control channel for transmitting control information for packet receiving, and a channel for transmitting information comprising transmission power control information; and perform radio communication between one radio communication apparatus such as a base station and the other radio communication apparatus such as a mobile station. The system and the apparatuses include a means which transmits the transmission power control information by the channel for transmitting the information comprising the transmission power control information in a constant period longer than the length of a packet from the one radio communication apparatus to the other radio communication apparatus, and transmits the transmission power control information by the control channel when the packet is transmitted by the traffic channel.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了降低包括基站和移动站的移动无线电通信系统以及构成基站和移动站的无线电通信装置的功耗。解决方案：移动无线电通信系统和无线电通信装置至少包括多个无线电通信装置中的可移动无线电通信装置; 至少包括用于发送分组的业务信道的复用信道，用于发送用于分组接收的控制信息的控制信道和用于发送包括发送功率控制信息的信息的信道; 并且在诸如基站的一个无线电通信装置和诸如移动台的其他无线电通信装置之间执行无线电通信。该系统和装置包括一种装置，该装置通过用于发送包括发送功率控制信息的信息的信道以比从一个无线电通信装置的分组的长度长的恒定周期向另一无线电通信发送发送功率控制信息装置，并且当通过业务信道发送分组时，通过控制信道发送发送功率控制信息。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2013042401A Wireless device and communication control program 有权
标题翻译：无线设备和通信控制程序
公开(公告)号：JP2013042401A
公开(公告)日：2013-02-28
申请号：JP2011178630
申请日：2011-08-17
申请人： Fujitsu Ltd , 富士通株式会社
发明人： OGAWA DAISUKE , DATEKI TAKASHI
IPC分类号： H04J99/00
CPC分类号： H04L5/0023 , H04L25/0242 , H04L25/03923
摘要： PROBLEM TO BE SOLVED: To reduce a calculation amount in PMI assumption.SOLUTION: A wireless device comprises: a channel covariance matrix calculation part 152 for calculating a covariance matrix from a channel matrix assumed on the basis of a wireless signal transmitted from a transmission station; a first metric calculation part 154 for calculating a first metric from the calculated covariance matrix; a Wdetermination part 156 for calculating a first precoding matrix which is common to a plurality of bands on the basis of the calculated first metric; second metric calculation parts 160-1 to 160-M for calculating a second metric using the calculated first precoding matrix; and an optimal CQI/PMI/RI determination part 164 for calculating a second precoding matrix for each band on the basis of the calculated second metric.
摘要翻译：要解决的问题：减少PMI假设中的计算量。解决方案：无线设备包括：信道协方差矩阵计算部分152，用于根据从传输站发送的无线信号假定的信道矩阵计算协方差矩阵; 第一度量计算部分154，用于从所计算的协方差矩阵中计算第一度量; 一个W 1 确定部分156，用于基于所计算的第一度量来计算多个频带共同的第一预编码矩阵; 第二度量计算部分160-1至160-M，用于使用所计算的第一预编码矩阵来计算第二度量; 以及用于基于计算出的第二度量来计算每个频带的第二预编码矩阵的最佳CQI / PMI / RI确定部分164。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012182840A Transmitting station and receiving station 有权
标题翻译：发射站和接收站
公开(公告)号：JP2012182840A
公开(公告)日：2012-09-20
申请号：JP2012130365
申请日：2012-06-08
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SEYAMA TAKASHI , DATEKI TAKASHI
IPC分类号： H04J11/00 , H04J1/00
摘要： PROBLEM TO BE SOLVED: To improve reception characteristics of the signal sequence of a first channel.SOLUTION: Time-multiplexing is performed so that, in the time-domain, at least a part of the signal sequence of a second channel having a code length longer than that of the signal sequence of a first channel is interposed between the timing of changing the transmission power of a time-multiplexed signal and the transmission timing of the signal sequence of a first channel, and a second signal sequence of a first channel having a code length longer than that of the first signal sequence of the first channel but shorter than that of the signal sequence of a second channel is interposed between the first signal sequence of the first channel and at least a part of the signal sequences of the second channel.
摘要翻译：要解决的问题：改善第一通道的信号序列的接收特性。解决方案：执行时间复用，使得在时域中，具有比第一信道的信号序列长的码长的第二信道的信号序列的至少一部分插入在改变时间复用信号的发送功率的定时和第一信道的信号序列的发送定时以及具有比第一信道的第一信号序列长的码长的第一信道的第二信号序列但是比第二信道的信号序列的短序列插入在第一信道的第一信号序列和第二信道的信号序列的至少一部分之间。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2011109700A Control method, radio communication system, receiver, and transmitter 审中-公开
标题翻译：控制方法，无线电通信系统，接收机和发射机
公开(公告)号：JP2011109700A
公开(公告)日：2011-06-02
申请号：JP2011008457
申请日：2011-01-19
申请人： Fujitsu Ltd , 富士通株式会社
发明人： FURUKAWA HIDETO , DATEKI TAKASHI
IPC分类号： H04W28/18 , H04J13/00 , H04W28/22 , H04W52/08
摘要： PROBLEM TO BE SOLVED: To provide a method of controlling radio channel capable of promptly coping with changes in propagation environment of radio channel, and to provide a receiver thereof.
SOLUTION: In a method of controlling radio channel in the direction from a transmitter to a receiver in a radio communication system having the transmitter and the receiver, the receiver generates electric power control information that directs up and down of transmission electric power to the transmitter based on receiving conditions of the radio channel from the transmitter to the receiver. The receiver also generates information showing a rate matching coefficient applied to the radio channel from the transmitter to the receiver as transmission parameters. While the receiver transmits electric power control information and transmission parameters to the transmitter, the transmitter controls the radio channel directed from the transmitter to the receiver based on electric power control information and transmission parameters.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决的问题：提供一种控制能够及时应对无线电信道的传播环境变化的无线电信道的方法，并提供其接收机。解决方案：在具有发射机和接收机的无线电通信系统中，在从发射机到接收机的方向上控制无线电信道的方法中，接收机产生将传输电力上下引导的电力功率控制信息基于从发射机到接收机的无线电信道的接收条件的发射机。接收机还生成表示作为传输参数的从发射机到接收机的应用于无线电信道的速率匹配系数的信息。当接收机向发射机发送电力控制信息和传输参数时，发射机基于电力控制信息和传输参数控制从发射机引导到接收机的无线电信道。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010283858A Wireless communication apparatus 有权
标题翻译：无线通信设备
公开(公告)号：JP2010283858A
公开(公告)日：2010-12-16
申请号：JP2010167058
申请日：2010-07-26
申请人： Fujitsu Ltd , 富士通株式会社
发明人： DATEKI TAKASHI , YANO TETSUYA
IPC分类号： H04J99/00 , H04B1/707 , H04B7/04 , H04J11/00
摘要： PROBLEM TO BE SOLVED: To enable a wireless communication apparatus which performs wireless communications to which MIMO is applied and to which the MIMO is not applied, to flexibly deal with control information. SOLUTION: The wireless communication apparatus in a wireless communication system where MIMO applied wireless communication apparatuses 1a, 1b for performing transmission/reception using a plurality of antennas 2a, 2b and a MIMO non-applied wireless communication apparatus 1c for performing transmission/reception using one or more antennas 2c are mixed. Each of the MIMO applied wireless communication apparatuses 1a, 1b includes transmitting/receiving means (a transmitting/receiving section and a signal processing section) for control information divided into second control information including at least an information portion related to MIMO separation on a traffic channel, and first control information including an information portion related to the application/non-application of MIMO and an information portion related to the MIMO separation of the second control information. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了能够灵活地处理控制信息，能够实现应用了MIMO并且不应用MIMO的无线通信的无线通信装置。解决方案：在MIMO应用使用多个天线2a，2b进行发送/接收的无线通信设备1a，1b和用于执行发送/接收的MIMO未应用的无线通信设备1c的无线通信系统中的无线通信设备，使用一个或多个天线2c的接收被混合。 MIMO应用无线通信装置1a，1b中的每一个包括发送/接收装置（发送/接收部分和信号处理部分），用于分配到至少包括与业务信道上的MIMO分离有关的信息部分的第二控制信息的控制信息以及包括与MIMO的应用/不应用有关的信息部分的第一控制信息以及与第二控制信息的MIMO分离有关的信息部分。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2014128020A Mobile station device and communication method 有权
标题翻译：移动站设备和通信方法
公开(公告)号：JP2014128020A
公开(公告)日：2014-07-07
申请号：JP2012286180
申请日：2012-12-27
申请人： Fujitsu Ltd , 富士通株式会社
发明人： SEYAMA TAKASHI , DATEKI TAKASHI
IPC分类号： H04J11/00
CPC分类号： H04L25/023 , H04L1/0041 , H04L1/0045 , H04L5/0048 , H04L25/0204
摘要： PROBLEM TO BE SOLVED: To improve reception performance by increasing reference signals for use for channel estimation.SOLUTION: A mobile station device 3 includes: a symbol count determination unit 27 for dynamically determining the number of symbols including reference signals for use for channel estimation according to a signal value notified from a base station device 2; a symbol selection unit 26 for selecting symbols having the determined number of symbols by the symbol count determination unit 27 from among a plurality of symbols including reference signals; and a channel estimation unit 26 for calculating a channel estimation value of the received signal from the base station device 2, on the basis of the symbols selected by the symbol selection unit 26.
摘要翻译：要解决的问题：通过增加用于信道估计的参考信号来提高接收性能。解决方案：移动台设备3包括：符号计数确定单元27，用于动态地确定包括用于信道估计的参考信号的符号数目，到从基站装置2通知的信号值; 符号选择单元26，用于从包括参考信号的多个符号中选择符号计数确定单元27具有确定符号数的符号; 以及信道估计单元26，用于基于由符号选择单元26选择的符号来计算来自基站装置2的接收信号的信道估计值。

10. 发明专利

JP2012191444A Cell search device and method, and mobile station 有权
标题翻译：细胞搜索装置和方法以及移动站
公开(公告)号：JP2012191444A
公开(公告)日：2012-10-04
申请号：JP2011053429
申请日：2011-03-10
申请人： Ntt Docomo Inc , Fujitsu Ltd , 富士通株式会社 , 株式会社エヌ・ティ・ティ・ドコモ
发明人： DATEKI TAKASHI
IPC分类号： H04W36/00 , H04B1/7083
摘要： PROBLEM TO BE SOLVED: To avoid deterioration in cell search performance caused by a transient state of reception band switching.SOLUTION: A cell search device 1 communicating with one cell 200a at a predetermined frequency and performing cell search for another cell 200b differing from the one cell by switching a reception frequency to a frequency differing from the predetermined frequency in a specific time section comprises: a reception unit 10 receiving a reception signal including a first synchronization signal that is a candidate of a specific signal used for specifying another cell in the specific time section; a first detection unit 50 detecting reception timing of the first synchronization signal; a synchronization signal selection unit 60 determining reception timing of the specific signal used for specifying the other cell included by the reception signal based on the reception timing of the first synchronization signal in the specific time section; and a second detection unit 70 specifying the other cell by using the specific signal used for specifying the other cell acquired based on the determined reception timing.
摘要翻译：要解决的问题：为了避免由接收频带切换的瞬态导致的小区搜索性能的恶化。解决方案：小区搜索设备1以预定频率与一个小区200a进行通信，并且通过在特定时间段中将接收频率切换到与预定频率不同的频率来执行与一个小区不同的另一小区200b的小区搜索包括：接收单元10，接收包括第一同步信号的接收信号，该第一同步信号是用于指定特定时间段中的另一小区的特定信号的候选; 检测第一同步信号的接收定时的第一检测单元50; 同步信号选择单元60基于特定时间段中的第一同步信号的接收定时来确定用于指定由接收信号包括的其他小区的特定信号的接收定时; 以及第二检测单元70，其通过使用用于指定基于所确定的接收定时获取的另一个单元的特定信号来指定另一小区。版权所有（C）2013，JPO＆INPIT

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