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    • 31. 发明专利
    • Wireless transmitting device and wireless receiving device
    • 无线发射设备和无线接收设备
    • JP2010063181A
    • 2010-03-18
    • JP2009284230
    • 2009-12-15
    • Toshiba Corp株式会社東芝
    • AOKI TSUGUHIDETAKEDA DAISUKEKOBAYASHI TAKAHIROTANABE YASUHIKO
    • H04J99/00H04B7/04H04J11/00
    • PROBLEM TO BE SOLVED: To perform a highly accurate AGC in a wireless receiving apparatus which receives signals transmitted from a plurality of transmitting antennas, and provide a wireless transmitting device employing a preamble signal for wireless communication, which can appropriately perform A/D conversion. SOLUTION: The wireless transmitting device includes a signal generator for generating a signal for transmitting the wireless packet. The wireless packet includes a first preamble for first automatic gain control (AGC) in the wireless receiving device, a second preamble for frequency synchronization in the wireless receiving device, a third preamble for a second AGC in the wireless receiving device which is performed after the first AGC, a fourth preamble for channel estimation between the wireless transmitting device and the wireless receiving device, and a data field for conveying data. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在接收从多个发送天线发送的信号的无线接收装置中执行高精度的AGC,并且提供一种采用无线通信的前置信号的无线发送装置,其可以适当地执行A / D转换。 解决方案:无线发送装置包括用于产生用于发送无线分组的信号的信号发生器。 无线分组包括无线接收设备中的第一自动增益控制(AGC)的第一前导码,无线接收设备中的频率同步的第二前导码,无线接收设备中的第二AGC的第三前导码, 第一AGC,用于无线发送装置与无线接收装置之间的信道估计的第四前导码,以及用于传送数据的数据字段。 版权所有(C)2010,JPO&INPIT
    • 33. 发明专利
    • Receiver, radio frame channel determining method and radio frame channel determination program
    • 接收机,无线电帧通道确定方法和无线帧间通道规划程序
    • JP2007184851A
    • 2007-07-19
    • JP2006002723
    • 2006-01-10
    • Toshiba Corp株式会社東芝
    • UCHIKAWA HIRONORIAOKI TSUGUHIDETANABE YASUHIKOTAKEDA DAISUKE
    • H04J1/00
    • PROBLEM TO BE SOLVED: To provide a receiver for detecting through which channel a received radio frame is transmitted among a first channel 1, a first channel 2 and a second channel with high accuracy.
      SOLUTION: Each of matched filters 1 and 2 outputs a correlated power value SIG1 having a peak value in the case of receiving a radio frame of the first channel 1 or the second channel and a correlated power value SIG 2 having a peak value in the case of receiving a radio frame of the first channel 2 or the second channel. A communication mode detecting part 6 calculates a division signal SIG5 being a power ratio of an addition signal SIG3 and an subtraction signal SIG4 on the basis of the addition signal SIG3 and the subtraction signal SIG4 being addition/subtraction results of the correlated power values SIG1 and SIG2, determines the division signal SIG5 and the subtraction signal SIG4 by a threshold at peak timing and detects a channel through which a radio frame is transmitted with high accuracy.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于在第一信道1,第一信道2和第二信道中以高精度检测在哪个信道中发送接收的无线帧的接收机。 解决方案:匹配滤波器1和2中的每一个输出在接收第一信道1或第二信道的无线帧的情况下具有峰值的相关功率值SIG1和具有峰值的相关功率值SIG 2 在接收第一通道2或第二通道的无线电帧的情况下。 通信模式检测部6基于加法信号SIG3计算加法信号SIG3和减法信号SIG4的功率比的除法信号SIG5,减法信号SIG4是相关功率值SIG1的相加/减法结果, SIG2通过峰值定时确定除法信号SIG5和减法信号SIG4阈值,并以高精度检测发送无线帧的信道。 版权所有(C)2007,JPO&INPIT
    • 34. 发明专利
    • Wireless communication device capable of supporting several wireless communication system
    • 无线通信设备,支持几个无线通信系统
    • JP2006157935A
    • 2006-06-15
    • JP2005351167
    • 2005-12-05
    • Toshiba Corp株式会社東芝
    • MUKAI MANABUWAKUTSU TAKASHIMITSUKI ATSUSHITAKEDA DAISUKEINOUE KAORUTOMIZAWA TAKESHIKUBO SHUNICHI
    • H04B1/38G06F9/445G06F11/00H04B7/26
    • PROBLEM TO BE SOLVED: To provide a wireless communication device which accurately and efficiently performs the resource control of a signal processing device. SOLUTION: The wireless communication device has a wireless sending and receiving device 2 for sending and receiving wireless signals, a signal processing device 3 which includes a resource capable of redefining a signal processing function according to software modules and is constituted so that the resource can perform necessary signal processing at the time of sending and receiving, a storing device 5 which stores several software modules corresponding to several wireless communication systems and a controller 4 which reads out at least software modules from the storing device 5 corresponding to the specific wireless communication systems and controls the signal processing device 3 and the storing device 5 so that the read out software modules can be provided for the resource. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种准确有效地执行信号处理装置的资源控制的无线通信装置。 解决方案:无线通信设备具有用于发送和接收无线信号的无线发送和接收设备2,信号处理设备3包括能够根据软件模块重新定义信号处理功能的资源,并且被构造成使得 资源可以在发送和接收时执行必要的信号处理,存储与几个无线通信系统相对应的多个软件模块的存储装置5以及至少从对应于特定无线电的存储装置5读出软件模块的控制器4 通信系统并且控制信号处理装置3和存储装置5,使得可以为资源提供读出的软件模块。 版权所有(C)2006,JPO&NCIPI
    • 35. 发明专利
    • Wireless communications apparatus
    • 无线通信设备
    • JP2006101035A
    • 2006-04-13
    • JP2004282761
    • 2004-09-28
    • Toshiba Corp株式会社東芝
    • EGASHIRA KEISHINTAKEDA DAISUKEAOKI TSUGUHIDETANABE YASUHIKO
    • H04J99/00H04B7/04H04B7/26
    • PROBLEM TO BE SOLVED: To provide a wireless communications apparatus where a receiver side can easily estimate the number of antennas used for transmission.
      SOLUTION: The receiver side wireless communication apparatus receives a plurality of known symbol sequences that are transmitted from a plurality of antennas, respectively include a plurality of temporally consecutive known symbols, wherein the arrangement of subcarriers for transmitting the known symbol is respectively different, and include the subcarrier arrangement wherein subcarriers for transmitting known information are adjacent to each other between each known symbol and a known symbol temporally adjacent to each known symbol, obtains a transmission path characteristic estimate value, by each subcarrier from each known symbol of the received known symbol sequence, obtains a correlation between the transmission path characteristic estimate value obtained from the known symbol and a transmission path characteristic estimate value obtained from the first received known symbol by each known symbol, and estimates the number of the antennas depending on the number of known symbols having received so far, when the correlation value is a predetermined threshold or higher.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种无线通信装置,其中接收机侧可以容易地估计用于传输的天线的数量。 解决方案:接收机侧无线通信装置接收从多个天线发送的多个已知符号序列,分别包括多个时间上连续的已知符号,其中用于发送已知符号的副载波的布置分别不同 并且包括子载波布置,其中用于发送已知信息的子载波在每个已知符号和与每个已知符号时间相邻的已知符号之间彼此相邻,从每个已知信号的已知符号的每个子载波获得传输路径特性估计值 获得从已知符号获得的传输路径特性估计值与由每个已知符号从第一接收到的已知符号获得的传输路径特性估计值之间的相关性,并且根据已知符号的数量估计天线数 已知符号 当相关值为预定阈值或更高时,已经接收到目前为止。 版权所有(C)2006,JPO&NCIPI
    • 36. 发明专利
    • Radio communication apparatus and method of estimating the number of antennas
    • 无线电通信装置和估计天线数量的方法
    • JP2006054661A
    • 2006-02-23
    • JP2004234631
    • 2004-08-11
    • Toshiba Corp株式会社東芝
    • EGASHIRA KEISHINTAKEDA DAISUKETANABE YASUHIKO
    • H04J99/00H04J11/00
    • H04B7/0682H04B7/0669H04L27/261
    • PROBLEM TO BE SOLVED: To provide a radio communication apparatus enabling a receiver side to easily estimating the number of antennas having used for transmission. SOLUTION: A transmitter uses a plurality of antennas to transmit a plurality of known symbol sequences each including a plurality of known symbols having a plurality of sub-carriers for transmitting known information and each formed by rotating the phase of the known symbol lastly transmitted out of the plurality of known symbols, and after that, the transmitter transmits the data symbol. Upon receiving the plurality of known symbol sequences, a receiver obtains a transmission path estimation value from the received known symbol sequence, and obtains a correlation value between the two known symbols temporally adjacent to each other of the received known symbol sequence. Then, the receiver estimates the number of antennas of the transmitter on the basis of a correlation value and the number of the known symbols received by that time, and reproduces the data symbol using the transmission path estimation value and the estimated number of the antennas. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供使接收机侧能够容易地估计用于发送的天线的数量的无线通信装置。 解决方案:发射机使用多个天线来发送多个已知符号序列,每个已知符号序列包括具有多个子载波的多个已知符号,用于发送已知信息,并且每个已知符号最后通过旋转已知符号的相位而形成 从多个已知符号中发送出去,然后发送器发送数据符号。 在接收到多个已知符号序列之后,接收机从接收到的已知符号序列获得传输路径估计值,并且获得在所接收的已知符号序列中彼此临时相邻的两个已知符号之间的相关值。 然后,接收机基于相关值和该时间接收到的已知符号的数量来估计发射机的天线数,并且使用传输路径估计值和估计的天线数再现数据符号。 版权所有(C)2006,JPO&NCIPI
    • 37. 发明专利
    • Radio communication apparatus
    • 无线电通信设备
    • JP2006014234A
    • 2006-01-12
    • JP2004192079
    • 2004-06-29
    • Toshiba Corp株式会社東芝
    • EGASHIRA KEISHINTAKEDA DAISUKETANABE YASUHIKO
    • H04J99/00H04B7/02H04B7/04H04B7/06H04B7/10H04J11/00H04L1/02H04L27/26H04L27/28
    • H04B7/0691H04B7/02H04L27/261
    • PROBLEM TO BE SOLVED: To provide a radio communication apparatus in which information required for demodulating a data symbol can be easily estimated at a receiving side and the data symbol can be highly accurately demodulated. SOLUTION: In a known symbol sequence, at least one known symbol comprised of a plurality of sub-carriers classified into any one of a plurality of groups for transmitting known information is included, and inversion/non-inversion of any one phase of the known information to be transmitted by two sub-carriers transmitted from the same antenna is controlled for each group in accordance with the information to be transmitted. Such a known symbol sequence is transmitted using a plurality of antennas and after the known symbol sequence is transmitted, a data symbol is transmitted using the plurality of antennas. COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:提供一种无线电通信装置,其中可以在接收侧容易地估计解调数据符号所需的信息,并且可以高度精确地解调数据符号。 解决方案:在已知符号序列中,包括由分类为用于发送已知信息的多个组中的任何一个组成的多个子载波构成的至少一个已知符号,并且包括任何一相的反相/非反相 根据要发送的信息,针对每个组控制从相同天线发送的两个子载波要发送的已知信息。 使用多个天线发送这样的已知符号序列,并且在已知符号序列被发送之后,使用多个天线发送数据符号。 版权所有(C)2006,JPO&NCIPI
    • 39. 发明专利
    • Communication method, transmission apparatus, and reception apparatus
    • 通信方法,传输装置和接收装置
    • JP2005020076A
    • 2005-01-20
    • JP2003178313
    • 2003-06-23
    • Toshiba Corp株式会社東芝
    • INOUE KAORUSETO ICHIROTAKEDA DAISUKE
    • H04J1/00H04B7/26H04W28/18H04Q7/38
    • PROBLEM TO BE SOLVED: To provide a communication method, a transmission apparatus, and a reception apparatus capable of managing the communication quality and the transmission rate and setting a proper quality and a proper transmission rate in response to various states. SOLUTION: A base station 200 makes multicarrier communication using a plurality of subcarriers with mobile phones in the area in charge of a base station. The base station acquires a reception state (reception power or the like) by each subcarrier of a mobile phone transmitted from the mobile phone being a data transmission opposite party, a transmission parameter decision setting section 201 decides the system of coding carried out by a channel encoding section 112 on the basis of the reception state, a format of a frame to be generated by a frame generating section 124, and the system of modulation processing to be carried out by a modulation section 113. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供能够管理通信质量和传输速率并且响应于各种状态设置适当的质量和适当的传输速率的通信方法,传输装置和接收装置。 解决方案:基站200在负责基站的区域中使用具有移动电话的多个子载波进行多载波通信。 基站通过从作为数据发送对方的移动电话发送的移动电话的每个副载波获取接收状态(接收功率等),发送参数判定设定部201决定通过信道进行的编码的系统 编码单元112,基于接收状态,由帧生成单元124生成的帧的格式,以及调制单元113进行的调制处理的系统。(C) 2005年,JPO&NCIPI