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    • 115. 发明授权
    • Wireless communication apparatus
    • 无线通信装置
    • US07676005B2
    • 2010-03-09
    • US10598441
    • 2005-08-02
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • H03D1/04
    • H04B7/0619H04B7/0617H04B7/086H04B17/11H04B17/21
    • In a wireless communication apparatus adopting a time division duplex system for executing transmission and reception using a plurality of antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means 105 detects channel information based on reception output of reception circuits 104-1 to 104-N provided in a one-to-one correspondence with a plurality of antennas 101-1 to 101-N. Correction value detection means 110 finds a correction value for correcting deviation occurring between each of transmission circuits 103-1 to 103-N and each of the reception circuits 104-1 to 104-N based on the channel information. A wireless communication apparatus 100 transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means 110 of the wireless communication apparatus 100 detects the correction value using the correction signal (probe signal).
    • 在采用使用多个天线执行发送和接收的时分双工系统的无线通信装置中,使用通信信号来检测和校正发送和接收电路之间发生的振幅和相位的偏差。 信道估计装置105基于与多个天线101-1至101-N一一对应地提供的接收电路104-1至104-N的接收输出来检测信道信息。 修正值检测单元110基于通道信息,求出用于校正发送电路103-1〜103-N和各接收电路104-1〜104-N的偏差的校正值。 无线通信装置100向无线通信装置进行通信的基站发送已知的信号(训练信号)。 基站根据已知的信号进行信道估计,生成并发送校正信号(探测信号)。 无线通信装置100的校正值检测装置110使用校正信号(探测信号)来检测校正值。
    • 116. 发明申请
    • RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION DEVICE
    • 无线电通信方法,无线电通信系统和无线电通信设备
    • US20090028262A1
    • 2009-01-29
    • US11573028
    • 2005-07-29
    • Tomohiro ImaiYasuaki YudaDaichi Imamura
    • Tomohiro ImaiYasuaki YudaDaichi Imamura
    • H04L1/02
    • H04L9/0875H04L2209/34H04L2209/80H04W12/04
    • There are disclosed a radio communication device and others capable of generating in a short time a secret key common to a base station and a mobile station in a radio communication system using the MIMO technique and starting the encrypted communication at an early stage. In this device, in ST545, when a channel coincidence judgment unit (105) and a channel coincidence judgment processing unit (205) respectively judge that the channel matrix generated by the base station completely coincides with the channel matrix generated by the mobile station or they do not coincide completely but they can coincide finally by error correction of the secret key or the like, according to the judgment result indicated in the channel coincidence judgment signal generated in ST540-2, ST545 is followed by ST550. On the other hand, when the channel matrix generated by the base station does not coincide completely with the channel matrix generated by the mobile station and they do not coincide finally even after error correction of the secret key, ST510 is again executed after ST545.
    • 公开了能够在短时间内在使用MIMO技术的无线通信系统中的基站和移动站共用的秘密密钥的早期阶段生成加密通信的无线通信装置等。 在该装置中,在ST545中,当信道一致判断部(105)和信道符合判定处理部(205)分别判定基站生成的信道矩阵与移动台生成的信道矩阵完全一致时, 不完全一致,但是最终可以通过秘密密钥等的纠错重合,根据在ST540-2中生成的信道重合判断信号中指示的判定结果,ST545后跟ST550。 另一方面,当由基站产生的信道矩阵与移动台产生的信道矩阵完全不一致时,即使在秘密密钥的纠错之后它们也不一致,在ST545之后再次执行ST510。
    • 118. 发明授权
    • Base station, terminal, transmission method, and reception method
    • 基站,终端,发送方式和接收方式
    • US09295037B2
    • 2016-03-22
    • US13823966
    • 2011-09-22
    • Ayako HoriuchiYasuaki YudaSeigo Nakao
    • Ayako HoriuchiYasuaki YudaSeigo Nakao
    • H04W72/04H04L5/00H04W84/04
    • H04W72/0406H04L5/0007H04L5/0053H04W84/047
    • A base station, a terminal, a transmission method and a reception method that allow the data processing on a reception side to have a margin irrespective of the time position of a resource region where control information is mapped. In a base station (100), a subframe type determining unit (101) determines, according to a configuration pattern applied to the local base station apparatus and being one of a plurality of configuration patterns different between downlink and uplink subframe configurations in time division multiplex, whether a subframe to be determined is a first type of subframe where control information is mapped only to a PDCCH region or a second type of subframe where the control information is mapped to both the PDCCH region and an R-PDCCH region. An allocation region candidate determining unit (102) determines, based on a result of the determination by the subframe type determining unit (101), a mapping region, where the control information is mapped, in the PDCCH or R-PDCCH region in the subframe to be determined.
    • 与控制信息被映射的资源区域的时间位置无关地,允许接收侧的数据处理具有余量的基站,终端,发送方法和接收方法。 在基站(100)中,子帧类型确定单元(101)根据应用于本地基站装置的配置模式,确定时分复用中的下行链路和上行子帧配置之间的不同配置模式之一 要确定的子帧是否是控制信息仅映射到PDCCH区域的第一类型的子帧,或者控制信息映射到PDCCH区域和R-PDCCH区域的第二类型的子帧。 分配区域候选确定单元(102)基于子帧类型确定单元(101)的确定结果,确定在子帧中的PDCCH或R-PDCCH区域中映射控制信息的映射区域 待定
    • 120. 发明申请
    • WIRELESS COMMUNICATION APPARATUS
    • 无线通信设备
    • US20120213131A1
    • 2012-08-23
    • US13459884
    • 2012-04-30
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • Yasuaki YudaTakaaki KishigamiTakashi FukagawaYoichi NakagawaShinichiro Takabayashi
    • H04W24/00H04J3/00
    • H04B7/0619H04B7/0617H04B7/086H04B17/11H04B17/21
    • Wireless communication apparatus adopting a time division duplex system for transmission and reception using plural antennas, deviation of amplitude and phase occurring between transmission and reception circuits is detected and corrected using a communication signal. Channel estimation means detects channel information based on reception output of N reception circuits having a one-to-one correspondence with N antennas. Correction value detection means finds a correction value for correcting deviation occurring between each of N transmission circuits and each of the N reception circuits based on the channel information. A wireless communication apparatus transmits an already known signal (training signal) to a base station with which the wireless communication apparatus conducts communications. The base station executes channel estimation based on the already known signal and generates and transmits a correction signal (probe signal). The correction value detection means of the wireless communication apparatus detects the correction value using the correction signal.
    • 采用使用多个天线进行发送和接收的时分双工系统的无线通信装置,使用通信信号检测和校正发送和接收电路之间发生的幅度和相位的偏差。 信道估计装置根据与N个天线一一对应的N个接收电路的接收输出来检测信道信息。 校正值检测装置根据频道信息找到校正发生在N个发送电路和N个接收电路中的每一个之间的偏差的校正值。 无线通信装置向无线通信装置进行通信的基站发送已知的信号(训练信号)。 基站根据已知的信号进行信道估计,生成并发送校正信号(探测信号)。 无线通信装置的校正值检测装置使用校正信号来检测校正值。