公开(公告)号：US5333148A

公开(公告)日：1994-07-26

申请号：US843934

申请日：1992-02-25

申请人： Kazuhisa Tsubaki ,  Kouji Abe ,  Mitsuru Uesugi ,  Kouichi Honma

发明人： Kazuhisa Tsubaki ,  Kouji Abe ,  Mitsuru Uesugi ,  Kouichi Honma

IPC分类号： H04B3/06 ,  H04B7/26 ,  H04J3/06 ,  H04L1/20 ,  H04L7/08 ,  H04L27/00 ,  H03D1/00 ,  H03H7/30 ,  H04L7/00 ,  H04L27/06

CPC分类号： H04L1/20 ,  H04J3/0602

摘要： A data receiver which enhances a probability of frame synchronization even if a transmission line quality is bad detects a specific bit sequence in a received signal demodulated by a demodulator to deduce a transmission line quality by a line quality deducer. If the transmission line quality is so bad that a frame synchronization detector cannot detect the specific bit sequence, the specific bit sequence is detected from a received signal demodulated by an equalizer after the elimination of a transmission line distortion.

摘要翻译： 即使传输线质量差，增强帧同步概率的数据接收机检测由解调器解调的接收信号中的特定位序列，以通过线路质量推断器推断传输线质量。 如果传输线质量差使得帧同步检测器不能检测到特定比特序列，则在消除传输线失真之后，从均衡器解调的接收信号中检测特定比特序列。

公开(公告)号：US20110243027A1

公开(公告)日：2011-10-06

申请号：US13160872

申请日：2011-06-15

申请人： Jinsong DUAN ,  Mitsuru Uesugi ,  Keisuke Ebiko ,  Keiji Takakusaki ,  Atsushi Sumasu

发明人： Jinsong DUAN ,  Mitsuru Uesugi ,  Keisuke Ebiko ,  Keiji Takakusaki ,  Atsushi Sumasu

IPC分类号： H04W24/00

CPC分类号： H04L1/0026 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0029 ,  H04L1/003 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/0091 ,  H04L25/022

摘要： A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.

摘要翻译： 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量，而不降低反馈信息的准确性。 在所述移动台装置（100）中，根据已知信号，将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元（135） 控制信息发送控制部（160）将基于各块的通信质量的反馈信息（CQI信息）发送到基站装置（200）; 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部（155）根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息（CQI信息）。

公开(公告)号：US07936811B2

公开(公告)日：2011-05-03

申请号：US11597420

申请日：2005-05-24

申请人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

发明人： Genichiro Ohta ,  Daichi Imamura ,  Keiji Takakusaki ,  Mitsuru Uesugi

IPC分类号： H04L27/00 ,  H04L25/03

CPC分类号： H04L27/2637 ,  H04L27/2649

摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.

摘要翻译： 一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。 调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特 频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。 因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

公开(公告)号：US07916770B2

公开(公告)日：2011-03-29

申请号：US10563248

申请日：2004-06-28

申请人： Mitsuru Uesugi

发明人： Mitsuru Uesugi

IPC分类号： H04B1/00

CPC分类号： H04J13/20 ,  H04J13/0044

摘要： ej(2nπ/N) calculating section 101 generates a bth chip C(a,b) of an ath spreading code based on C(a,b)=ej(2nπ/N) where e is a base of natural logarithm and N is a length of the spreading code (i.e. spreading code length). It is assumed in the above equation that n=a×b, a=0˜N−1, and b=0˜N−1. It is thereby possible to generate orthogonal spreading codes with arbitrary lengths.

摘要翻译： ej（2n＆pgr; / N）计算部101基于C（a，b）= ej（2n＆pgr; / N）生成运动扩展码的第b码片C（a，b），其中e是自然对数的基数， N是扩展码的长度（即扩展码长度）。 在上式中假设n = a×b，a = 0〜N-1，b = 0〜N-1。 从而可以产生任意长度的正交扩展码。

公开(公告)号：US20100195707A1

公开(公告)日：2010-08-05

申请号：US11997710

申请日：2005-08-04

申请人： Jinsong Duan ,  Mitsuru Uesugi ,  Keisuke Ebiko ,  Keiji Takakusaki ,  Atsushi Sumasu

发明人： Jinsong Duan ,  Mitsuru Uesugi ,  Keisuke Ebiko ,  Keiji Takakusaki ,  Atsushi Sumasu

IPC分类号： H04B17/00 ,  H04L1/02

CPC分类号： H04L1/0026 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0029 ,  H04L1/003 ,  H04L5/0007 ,  H04L5/0046 ,  H04L5/006 ,  H04L5/0091 ,  H04L25/022

摘要： A mobile terminal device for performing multi-carrier communication with a base station device can improve communication quality while reducing the data amount without lowering accuracy of feedback information. In the mobile station device (100), a reception level measuring unit (135) measuring SINR as a reception level for each chunk formed by a plurality of sub-carriers according to a known signal; a control information transmission control unit (160) transmits feedback information (CQI information) based on the communication quality of each chunk to a base station device (200); a relative value calculation unit (150) calculates a relative value of MCS corresponding to the reception level between adjacent chunks from the reception level of each chunk; and a CQI information generation unit (155) generates feedback information (CQI information) from an absolute value of MCS corresponding to the reception level of the reference chunk and a relative value of MCS corresponding to the reception level between the adjacent chunks.

摘要翻译： 用于与基站设备进行多载波通信的移动终端设备可以在降低数据量的同时提高通信质量，而不降低反馈信息的准确性。 在所述移动台装置（100）中，根据已知信号，将由SINR构成的每个块的接收电平测量SINR的接收电平测量单元（135） 控制信息发送控制部（160）将基于各块的通信质量的反馈信息（CQI信息）发送到基站装置（200）; 相对值计算单元从每个块的接收电平计算与相邻块之间的接收电平相对应的MCS的相对值; CQI信息生成部（155）根据与基准块的接收电平对应的MCS的绝对值和与相邻的块之间的接收电平相对应的MCS的相对值生成反馈信息（CQI信息）。

公开(公告)号：US20090086834A1

公开(公告)日：2009-04-02

申请号：US11917745

申请日：2006-06-21

申请人： Yuta Seki ,  Mitsuru Uesugi ,  Eiji Ota

发明人： Yuta Seki ,  Mitsuru Uesugi ,  Eiji Ota

IPC分类号： H04L27/28

CPC分类号： H04L27/2623

摘要： To narrow the dynamic range of multicarrier signals and prevent both the increment of cost and the degradation of power efficiency. A modulating part (101) modulates transport data. An S/P converting part (102) performs an S/P conversion of a modulated symbol and outputs the modulated symbols, the number of which is the same as the number of all subcarriers, to an IFFT part (103) in parallel. The IFFT part (103) assigns the modulated symbols to the subcarriers, the frequencies of which are orthogonal to each other, to perform an inverse fast Fourier transform. A P/S converting part (104) performs a P/S conversion of the signals of time domain. When the instantaneous amplitude level of an OFDM signal is lower than a predetermined threshold value, a pit clip part (105) replaces this amplitude level by the predetermined threshold value. In other words, when the instantaneous power of the OFDM signal is close to zero, the pit clip part (105) converts a power value to a value that is greater than the actual power value.

摘要翻译： 缩小多载波信号的动态范围，防止成本增加和功率效率的退化。 调制部（101）调制传输数据。 S / P转换部分（102）执行调制符号的S / P转换，并且将其数量与所有子载波数相同的调制符号并行地输出到IFFT部分（103）。 IFFT部分（103）将调制符号分配给彼此正交的频率的子载波，以执行快速傅立叶逆变换。 P / S转换部（104）进行时域信号的P / S转换。 当OFDM信号的瞬时幅度电平低于预定阈值时，凹坑夹部分（105）将该幅度电平取代预定阈值。 换句话说，当OFDM信号的瞬时功率接近零时，凹坑夹部分（105）将功率值转换成大于实际功率值的值。

公开(公告)号：US20080279305A1

公开(公告)日：2008-11-13

申请号：US12173632

申请日：2008-07-15

申请人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

发明人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

IPC分类号： H04L27/00

CPC分类号： H04L1/1845 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1893 ,  H04L27/3488 ,  H04L2001/0098

摘要： P/S conversion section 302 performs parallel/serial conversion of data sequences #1 through #4 input in parallel, in accordance with control by assignment control section 303, so that data to a higher-priority communication terminal is assigned to an upper bit in one symbol; M-ary modulation section 304 performs M-ary modulation on the data that has been subject to parallel/serial conversion; S/P conversion section 305 converts a symbol that has been subject to M-ary modulation to parallel form; multipliers 306-1 through 306-4 execute spreading processing on the symbols output in parallel; multiplexing section 309 multiplexes the symbol that has been subject to spreading processing with an assignment notification signal that has been subject to spreading processing; and radio transmitting section 310 transmits the multiplex signal.

摘要翻译： P / S转换部分302根据分配控制部分303的控制对并行输入的数据序列＃1至＃4进行并行/串行转换，使得到较高优先级的通信终端的数据被分配给 一个符号 M元调制部304对已经进行并行/串行转换的数据执行M进制调制; S / P转换部分305将已经被M进制调制的符号转换成并行形式; 乘法器306-1至306-4对并行输出的符号执行扩展处理; 多路复用部分309将已经进行扩展处理的符号与已经进行扩展处理的分配通知信号进行复用; 无线发送部310发送多路复用信号。

公开(公告)号：US07251272B2

公开(公告)日：2007-07-31

申请号：US09933038

申请日：2001-08-21

申请人： Sadaki Futagi ,  Mitsuru Uesugi ,  Tadashi Matsumoto

发明人： Sadaki Futagi ,  Mitsuru Uesugi ,  Tadashi Matsumoto

IPC分类号： H03H7/30

CPC分类号： H04L25/0206 ,  H04B1/1081 ,  H04L25/03343 ,  H04W52/242 ,  H04W52/248

摘要： Noise generating section 106 generates noise data of a white Gaussian noise, and noise adding section 107 adds received data and the noise data. Channel estimating section 108 performs channel estimation using the added data output from noise adding section 107. At this point, when a level of a preceding signal is equal to or less than that of the noise data, channel estimating section 108 is not capable of detecting the preceding signal. Accordingly, in the case where a received level of a preceding signal is extremely lower than that of a delayed signal and a noise level is further lower than the received level of the preceding signal, it is possible to perform pre-equalization using the delayed signal as a desired signal, whereby it is possible to maintain the reception characteristic of a communication partner.

摘要翻译： 噪声生成部106生成白高斯噪声的噪声数据，噪声添加部107将接收到的数据和噪声数据相加。 信道估计部108使用从噪声添加部107输出的相加数据进行信道估计。 此时，当前一信号的电平等于或小于噪声数据的电平时，信道估计部分108不能检测前一信号。 因此，在前一信号的接收电平比延迟信号的接收电平低得多并且噪声电平进一步低于先前信号的接收电平的情况下，可以使用延迟信号进行预均衡 作为期望的信号，由此可以保持通信伙伴的接收特性。

公开(公告)号：US07133642B2

公开(公告)日：2006-11-07

申请号：US09913608

申请日：2000-12-15

申请人： Mitsuru Uesugi

发明人： Mitsuru Uesugi

IPC分类号： H04B1/10 ,  H04B15/00

CPC分类号： H04L1/06 ,  H04B7/0608 ,  H04B7/08 ,  H04B7/0854

摘要： A channel estimation section 112 estimates the states of channels used for pieces of mobile station apparatus (A) and (B), using signals demodulated by radio processing sections 110, 111. A best SIR calculation section 118 calculates coefficients to be used for signal transformation by inverse matrix calculation, using the above channel estimation values by the above channel estimation section 112. A signal transformation section 119 performs linear transformation of transmission signals to the above pieces of mobile station apparatus, using the above coefficients from the above best SIR calculation section 118. Radio processing sections 120, 121 modulates each transmission signal after the above linear transformation for transmission through antennas 108, 109, respectively.

摘要翻译： 信道估计部分112使用由无线电处理部分110,111解调的信号来估计用于移动台装置（A）和（B）的信道的状态。 最佳SIR计算部分118使用上述信道估计部分112的上述信道估计值来计算通过逆矩阵计算用于信号变换的系数。 信号变换部119使用上述最佳SIR计算部118的上述系数，对上述移动台装置进行发送信号的线性变换。 无线电处理部分120,121分别在通过天线108,109进行上述线性变换之后对每个发送信号进行调制以进行发送。

公开(公告)号：US20060198342A1

公开(公告)日：2006-09-07

申请号：US10563248

申请日：2004-06-28

申请人： Mitsuru Uesugi

发明人： Mitsuru Uesugi

IPC分类号： H04B7/216

CPC分类号： H04J13/20 ,  H04J13/0044

摘要： ej(2nn/N) calculating section 101 generates a bth chip C(a,b) of an ath spreading code based on C(a,b)=ej(2nn/N) where e is a base of natural logarithm and N is a length of the spreading code (i.e. spreading code length). It is assumed in the above equation that n=a×b, a=0˜N−1, and b=0˜N−1. It is thereby possible to generate orthogonal spreading codes with arbitrary lengths.

摘要翻译： 计算部101根据C（a，b）= e（j）（2nn / N）生成运动扩展码的第b码片C（a，b） ）其中e是自然对数的基数，N是扩展码的长度（即扩展码长度）。 在上式中假设n = axb，a = 0〜N-1，b = 0〜N-1。 从而可以产生任意长度的正交扩展码。