公开(公告)号：US20080063117A1

公开(公告)日：2008-03-13

申请号：US11925720

申请日：2007-10-26

申请人： Jun CHENG ,  Kenichi MIYOSHI

发明人： Jun CHENG ,  Kenichi MIYOSHI

IPC分类号： H03D1/00

CPC分类号： H04L5/0037 ,  H04L1/0003 ,  H04L1/0017 ,  H04L1/0019 ,  H04L1/20 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/0008

摘要： A wireless transmission apparatus that can accurately select an optimal modulation scheme on a per block basis in a multi-carrier communication system in which block division of subcarriers and adaptive modulation are performed. In this wireless transmission apparatus, a propagation path characteristics acquisition section (107) acquires the average SNR and SNR dispersion for each block, which are estimated by a wireless reception apparatus (200), using received signals inputted from a reception RF section (106) and outputs these to an assignment section (108), the assignment section (108) selects a modulation scheme for each block based on the average SNR and SNR dispersion of each block inputted from the propagation path characteristics acquisition section (107), and modulation sections (101-1, 101-2, . . . , 101-L) modulate multi-carrier signals included in each block, with the modulation scheme for each block selected by the assignment section (108).

摘要翻译： 一种无线发送装置，其能够在进行子载波和自适应调制的块分割的多载波通信系统中，以每块为基准，精确地选择最优调制方式。 在该无线发送装置中，传播路径特性获取部（107）使用从接收RF部（106）输入的接收信号，获取由无线接收装置（200）估计出的每个块的平均SNR和SNR分散， 并将其输出到分配单元（108），分配单元（108）根据从传播路径特性获取单元（107）输入的各个单元的平均SNR和SNR色散，对每个块选择调制方式，调制单元 （101-1,101-2，...，101-L）对包括在每个块中的多载波信号与由分配部分（108）选择的每个块的调制方案进行调制。

公开(公告)号：US20110243109A1

公开(公告)日：2011-10-06

申请号：US13158014

申请日：2011-06-10

申请人： Jun CHENG ,  Akihiko NISHIO ,  Kenichi MIYOSHI

发明人： Jun CHENG ,  Akihiko NISHIO ,  Kenichi MIYOSHI

IPC分类号： H04W72/04

CPC分类号： H04W72/0413 ,  H04W36/16 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/087 ,  H04W72/10 ,  H04W74/004 ,  H04W74/0833 ,  H04W88/08

摘要： There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.

摘要翻译： 公开了一种用于在短时间内在无线电通信终端设备和基站设备之间建立单独信道的随机接入方法和执行随机接入方法的无线电通信终端设备。 在该装置中，在步骤ST320中，RACH子信道分配单元（211）随机地将从复制单元（202）输入的发送分组分配给RACH任意时隙的任意子载波。 在步骤ST330中，分配单元（210）判断在由RACH子信道分配单元（211）获得的分配结果中是否生成了重叠。 当分配单元（210）判定在分配结果中产生重叠时，分配单元（210）使引起重叠的RACH子信道分配单元（211）中的一个再次执行步骤ST320的分配。 另一方面，当判断在分配结果中没有产生重叠时，执行步骤ST340。

公开(公告)号：US20120093247A1

公开(公告)日：2012-04-19

申请号：US13340290

申请日：2011-12-29

申请人： Kenichi MIYOSHI ,  Akihiko Nishio

发明人： Kenichi MIYOSHI ,  Akihiko Nishio

IPC分类号： H04L27/28

CPC分类号： H04L27/261 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03159 ,  H04L2025/03414

摘要： A radio transmission device capable of improving channel estimation precision for each frequency. In this device, an FFT unit (103) subjects a data signal to a Fourier transformation. A signal substitution unit (108) substitutes the frequency component of a portion of a plurality of frequency components composing the Fourier-transformed data signal, for a pilot signal. An IFFT unit (109) subjects the data signal, the frequency component of which has been partially substituted for the pilot signal, to an inverse Fourier transformation. A transmission RF unit (111) transmits the inversely Fourier-transformed data signal on a single carrier.

摘要翻译： 一种能够提高每个频率的信道估计精度的无线传输装置。 在该装置中，FFT单元（103）对数据信号进行傅里叶变换。 信号替换单元（108）将构成傅立叶变换数据信号的多个频率分量的一部分的频率分量代入导频信号。 IFFT单元（109）将频率分量部分地替代导频信号的数据信号进行逆傅里叶变换。 发送RF单元（111）在单载波上发送反傅立叶变换后的数据信号。

公开(公告)号：US20110134864A1

公开(公告)日：2011-06-09

申请号：US13016856

申请日：2011-01-28

申请人： Kenichi MIYOSHI

发明人： Kenichi MIYOSHI

IPC分类号： H04W72/04

CPC分类号： H04L47/14 ,  H04L47/26 ,  H04L47/626 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0245 ,  H04W72/1231 ,  H04W72/1278 ,  Y02D70/00

摘要： A radio communication apparatus includes a receiving section that receives a quality indication signal from a communicating station of a communicating party, a transmitting section that transmits transmission data corresponding to the quality indication signal to the communicating station, and a non-transmission information notifying section that notifies the communicating station of the communicating party of non-transmission information indicative of not transmitting the transmission data when the apparatus does not transmit the transmission data corresponding to the quality indication signal or the apparatus cannot transmit the transmission data to the communicating station. When the communicating terminal apparatus receives the non-transmission information indicative of not transmitting the transmission data, resources are saved in that the apparatus stops awaiting the data.

摘要翻译： 一种无线电通信装置，包括从通信对方的通信站接收质量指示信号的接收部，向通信台发送与质量指示信号对应的发送数据的发送部，以及非发送信息通知部， 当设备不发送与质量指示信号相对应的发送数据时，通知通信对方的通信站，该非传输信息表示不发送传输数据，或者该设备不能将传输数据发送到通信站。 当通信终端设备接收到指示不发送传输数据的非传输信息时，节省了设备停止等待数据的资源。

公开(公告)号：US20090270043A1

公开(公告)日：2009-10-29

申请号：US12495673

申请日：2009-06-30

申请人： Kenichi MIYOSHI ,  Katsuhiko Hiramatsu ,  Takahisa Aoyama ,  Atsushi Sumasu ,  Osamu Kato

发明人： Kenichi MIYOSHI ,  Katsuhiko Hiramatsu ,  Takahisa Aoyama ,  Atsushi Sumasu ,  Osamu Kato

IPC分类号： H04B17/00

CPC分类号： H04W28/22 ,  H04W24/00 ,  H04W52/0229 ,  H04W52/0245 ,  H04W52/0258 ,  H04W52/24 ,  H04W52/26 ,  H04W72/12 ,  H04W72/1284 ,  Y02D70/00

摘要： A mobile communication system which is capable of, when carrying out mobile communication using a shared channel, increasing in efficiency of transmission timing of the data transmission rate request value to prevent wasteful power consumption and hence reduce power consumption. A mobile station apparatus of the mobile communication system measures CIR of the received signal from a base station apparatus at a CIR measuring section, and decides the data transmission rate request value corresponding to the measured CIR value at a rate request value deciding section. Also, it detects an error of the received signal at a CRC section, and, when no error is found, calculates a difference between the average data transmission rate from a base station apparatus and the data transmission request value at a rate request value transmission controlling section. Then, it transmits the data transmission rate request value to the base station apparatus only when the obtained difference is larger than a threshold value.

摘要翻译： 能够在使用共享信道进行移动通信时能够提高数据传输速率请求值的发送定时的效率的移动通信系统，以防止浪费的功率消耗并因此降低功耗。 移动通信系统的移动站装置在CIR测量部分测量来自基站装置的接收信号的CIR，并且在速率请求值确定部分确定与测量的CIR值对应的数据传输速率请求值。 此外，它检测在CRC部分的接收信号的错误，并且当没有发现错误时，以速率请求值传输控制计算来自基站装置的平均数据传输速率与数据传输请求值之间的差异 部分。 然后，只有当获得的差值大于阈值时，才向基站装置发送数据传输速率请求值。

公开(公告)号：US20080187064A1

公开(公告)日：2008-08-07

申请号：US12061599

申请日：2008-04-02

申请人： Kenichi MIYOSHI

发明人： Kenichi MIYOSHI

IPC分类号： H04L27/28

CPC分类号： H04L5/0053 ,  H04L27/2647

摘要： By assigning a plurality of subcarriers 31 to a data channel 33 and assigning fewer subcarriers 32 than the plurality of subcarriers 31 to a control channel 34, and in addition locating the control channel 34 at the center frequency fc of a frequency band used to transmit the data channel 33, on the radio receiving apparatus side, the frequencies of a local signal by which the received signal is multiplied share the same value, thereby speeding up the switching between the control channel and the data channel.

摘要翻译： 通过将多个副载波31分配给数据信道33，并将多个子载波32分配给多个副载波31，并将其分配给控制信道34，此外，将控制信道34定位在用于发送的频带的中心频率fc 在无线电接收装置侧的数据信道33中，接收信号被乘以的本地信号的频率共享相同的值，从而加速控制信道与数据信道之间的切换。

公开(公告)号：US20110223951A1

公开(公告)日：2011-09-15

申请号：US13114696

申请日：2011-05-24

申请人： Kenichi MIYOSHI ,  Akihiko Nishio ,  Daichi Imamura ,  Hidetoshi Suzuki

发明人： Kenichi MIYOSHI ,  Akihiko Nishio ,  Daichi Imamura ,  Hidetoshi Suzuki

IPC分类号： H04B7/26 ,  H04B1/034 ,  G06F3/033

CPC分类号： H04W56/0015 ,  H04J11/0069 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2626 ,  H04W8/005 ,  H04W48/08 ,  H04W48/16 ,  H04W72/00 ,  H04W88/08

摘要： Provided is a base station capable of performing cell search of all mobile stations having different communicable frequency band widths in a scalable band width communication system to which a multi-carrier communication method such as the OFDM method is applied. The base station includes: a modulation unit (102) for modulating SCH data after being encoded; a sub carrier setting unit (105) for setting one of the sub carriers to a sub carrier (SCH sub carrier) constituting the OFDM symbol for SCH data transmission; and an IFFT unit (106) for mapping the SCH data to the sub carrier set by the sub carrier setting unit (105) among the sub carriers and performing IFFT to generate an OFDM symbol. The sub carrier setting unit (105) sets one of the sub carriers which has a frequency of a common multiple between the sub carrier interval and the cell search interval as an SCH sub carrier.

摘要翻译： 提供了一种能够在可应用诸如OFDM方法的多载波通信方法的可扩展带宽通信系统中对具有不同的可通信频带宽度的所有移动台进行小区搜索的基站。 基站包括：调制单元（102），用于在编码之后调制SCH数据; 用于将子载波中的一个设置为构成用于SCH数据传输的OFDM符号的子载波（SCH子载波）的子载波设置单元（105） 以及IFFT单元（106），用于将SCH数据映射到子载波中由子载波设置单元（105）设置的副载波，并执行IFFT以生成OFDM符号。 子载波设置单元（105）将子载波间隔和小区搜索间隔之间具有公共倍数的子载波之一设置为SCH子载波。

公开(公告)号：US20110199930A1

公开(公告)日：2011-08-18

申请号：US13093702

申请日：2011-04-25

申请人： Kenichi MIYOSHI

发明人： Kenichi MIYOSHI

IPC分类号： H04W4/00 ,  H04W24/00

CPC分类号： H04L1/0016 ,  H04B7/2659 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A transmission apparatus and method updates a communication mode selection table that updates a communication mode selection table correctly and selects an optimal MCS according to an actual channel condition. A buffer temporarily stores calibration data to be transmitted for updating a table. A scheduler performs scheduling of data to be transmitted based on a CIR on a downlink reported from a plurality of communication terminal apparatuses. When there is no data to be transmitted, the scheduler sends calibration data from the buffer. When calibration data is transmitted as a result of the scheduling, the scheduler notifies an address information generation section of the communication terminal apparatus to which the calibration data is transmitted. In one mode, first data is transmitted from a first communication apparatus to another communication apparatus, the first communication apparatus receives from the other communication apparatus, information on an error rate when the other communication apparatus receives the first data; andthe first communication apparatus transmits second data to the other communication apparatus based on a communication mode determined using the information on the error rate.

摘要翻译： 发送装置和方法更新正确更新通信模式选择表的通信模式选择表，并根据实际信道条件选择最佳MCS。 缓冲器临时存储要发送用于更新表的校准数据。 调度器基于从多个通信终端装置报告的下行链路上的CIR进行要发送的数据的调度。 当没有要发送的数据时，调度器从缓冲器发送校准数据。 当作为调度的结果发送校准数据时，调度器通知发送校准数据的通信终端装置的地址信息生成部。 在一种模式中，第一数据从第一通信装置发送到另一通信装置，第一通信装置从另一通信装置接收另一通信装置接收第一数据时的错误率信息; 并且第一通信装置基于使用关于错误率的信息确定的通信模式向第二通信装置发送第二数据。

公开(公告)号：US20090258609A1

公开(公告)日：2009-10-15

申请号：US12490231

申请日：2009-06-23

申请人： Kenichi MIYOSHI

发明人： Kenichi MIYOSHI

IPC分类号： H04B7/02

CPC分类号： H04B7/0632 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0613 ,  H04B7/0667 ,  H04B7/0671 ,  H04B7/0673 ,  H04B7/0697 ,  H04B7/0842 ,  H04L1/0006 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L1/1657 ,  H04L1/1812 ,  H04L1/1893

摘要： Data streams stored in buffers are modulated by modulation sections. Multipliers multiply the signals output from the modulation sections by weights output from a weight control section, The signals output from the multipliers are added up by addition sections, subjected to radio transmission processing by transmission radio sections and sent through antennas. A buffer control section controls the buffers based on a retransmission count output from a retransmission count detection section. The weight control section outputs weights different from weights at the time of previous transmission to the multipliers every time data is retransmitted. This allows a diversity gain at the time of data retransmission to be increased even if a time variation of the propagation path environment for radio signals is slow.

摘要翻译： 存储在缓冲器中的数据流由调制部分调制。 乘法器将从调制部分输出的信号乘以权重控制部分的权重输出。乘法器输出的信号由加法部分相加，经过无线电传送部分的无线电发送处理，并通过天线发送。 缓冲器控制部分基于从重传计数检测部分输出的重传计数来控制缓冲器。 每当重发数据时，权重控制部分将与先前发送时的权重不同的权重输出到乘法器。 即使无线电信号的传播路径环境的时间变化较慢，也能够提高数据重发时的分集增益。

公开(公告)号：US20080212705A1

公开(公告)日：2008-09-04

申请号：US12060725

申请日：2008-04-01

申请人： Kenichi MIYOSHI ,  Atsushi Matsumoto

发明人： Kenichi MIYOSHI ,  Atsushi Matsumoto

IPC分类号： H04L27/28

CPC分类号： H04L27/2626 ,  H04L1/0071 ,  H04L1/08 ,  H04L27/2602 ,  H04L27/2647 ,  H04L27/28 ,  H04L27/32 ,  H04L27/34 ,  H04L27/3488 ,  H04L27/362

摘要： A duplicating section duplicates a bit sequence to be input, and a 16QAM section modulates a bit sequence of a duplicating source to form a symbol, a 16QAM section modulates the duplicated bit sequence to form a symbol, an S/P section parallel converts the symbol sequence input in series, an S/P section parallel converts the symbol sequence input in series, and an IFFT section 15 provides IFFT processing to the input symbol sequence. Since each of multiple same bits duplicated by the duplicating section is included in a different symbol, each of the multiple same bits is allocated to each of multiple subcarriers each having a different frequency by IFFT processing. As a result, a multicarrier signal including the multiple same bits each having a different frequency is generated.

摘要翻译： 复制部分复制要输入的比特序列，并且16QAM部分调制复制源的比特序列以形成符号，16QAM部分调制复制比特序列以形成符号，S / P部分并行转换符号 序列输入串联，S / P部分并行转换串联输入的符号序列，IFFT部分15向输入符号序列提供IFFT处理。 由于由复制部分复制的多个相同位中的每一个被包括在不同的符号中，所以通过IFFT处理分配具有不同频率的多个子载波中的每一个的多个相同比特中的每一个。 结果，产生了包括具有不同频率的多个相同位的多载波信号。