专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09276652B2 Wireless communication system and wireless communication method 有权
标题翻译：无线通信系统和无线通信方式
公开(公告)号：US09276652B2
公开(公告)日：2016-03-01
申请号：US13881525
申请日：2011-11-15
申请人： Riichi Kudo , Munehiro Matsui , Tomoki Murakami , Takeo Ichikawa , Yusuke Asai , Koichi Ishihara , Tomoyuki Yamada , Masato Mizoguchi
发明人： Riichi Kudo , Munehiro Matsui , Tomoki Murakami , Takeo Ichikawa , Yusuke Asai , Koichi Ishihara , Tomoyuki Yamada , Masato Mizoguchi
IPC分类号： H04B7/04 , H04L5/00 , H04B7/06 , H04W16/28 , H04W24/10 , H04B17/318
CPC分类号： H04B7/0452 , H04B7/0617 , H04B7/0632 , H04B17/318 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04W16/28 , H04W24/10
摘要： A wireless communication system includes a first wireless station including antenna elements, transmission units corresponding to the antenna elements, and a transmission directivity control unit that controls transmission directivity of the antenna elements, and second wireless stations each including a reception power measurement unit that measures a reception power. The transmission directivity control unit determines the transmission directivity of each of the antenna elements so that a signal does not reach a particular second wireless station among the second wireless stations. The transmission units generate wireless signals using the transmission directivity. The antenna elements transmit the generated wireless signals. The reception power measurement unit measures the reception power in a period that is set so that a signal does not reach the particular second wireless station by using the directivity, and detect the presence or absence of interference caused by the low accuracy of channel information.
摘要翻译：无线通信系统包括：第一无线站，包括天线元件，与天线元件对应的发送单元，以及控制天线元件的发送方向性的发送方向性控制单元，以及各自包含测量接收功率发送方向性控制单元确定每个天线元件的发送方向性，使得信号在第二无线站中不到达特定的第二无线站。传输单元使用传输方向性产生无线信号。天线元件发送生成的无线信号。接收功率测量单元在设定为使得信号通过使用方向性不到达特定的第二无线站的时间段中测量接收功率，并且检测由信道信息的低精度引起的干扰的存在或不存在。

2. 发明授权

US08934782B2 Transmission method, reception method, transmitter apparatus, and receiver device 有权
标题翻译：发送方式，接收方式，发送装置和接收装置
公开(公告)号：US08934782B2
公开(公告)日：2015-01-13
申请号：US13576902
申请日：2011-02-03
申请人： Tadao Nakagawa , Etsushi Yamazaki , Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Yutaka Miyamoto , Akihide Sano , Eiji Yoshida , Masato Mizoguchi
发明人： Tadao Nakagawa , Etsushi Yamazaki , Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Yutaka Miyamoto , Akihide Sano , Eiji Yoshida , Masato Mizoguchi
IPC分类号： H04B10/00 , H04J14/06 , H04B10/532 , H04B10/50 , H04B10/60 , G02F1/01
CPC分类号： H04B10/5053 , G02F1/0136 , H04B10/532 , H04B10/60 , H04J14/06
摘要： A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-signal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-signal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed.
摘要翻译：传输信号的极化状态可以基于符号速率高速度地改变。通过随时间切换第一开关，第二开关和第三开关，X极化波I_信号之一作为Y轴，通过对X偏振波_I信号执行逻辑反相，X偏振波Q_信号和由X偏振波Q_信号的逻辑反相引起的信号引起的信号被输入到第二调制器。此外，通过随时间切换第一开关，第二开关和第三开关，第二调制器输入X极化波I_信号之一作为Y偏振波Q_信号，X偏振波I信号，通过对X偏振波_I信号进行逻辑反转而引起的信号，X偏振波Q信号和由X偏振波Q信号执行逻辑反相引起的信号。因此，可以基于符号速率速度高速地改变发送信号的偏振状态。

3. 发明申请

US20130208619A1 WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD 有权
标题翻译：无线通信系统和无线通信方法
公开(公告)号：US20130208619A1
公开(公告)日：2013-08-15
申请号：US13881525
申请日：2011-11-15
申请人： Riichi Kudo , Munehiro Matsui , Tomoki Murakami , Takeo Ichikawa , Yusuke Asai , Koichi Ishihara , Tomoyuki Yamada , Masato Mizoguchi
发明人： Riichi Kudo , Munehiro Matsui , Tomoki Murakami , Takeo Ichikawa , Yusuke Asai , Koichi Ishihara , Tomoyuki Yamada , Masato Mizoguchi
IPC分类号： H04B7/04
CPC分类号： H04B7/0452 , H04B7/0617 , H04B7/0632 , H04B17/318 , H04L5/0023 , H04L5/0053 , H04L5/0057 , H04W16/28 , H04W24/10
摘要： Communication quality is prevented from being deteriorated due to interference caused by low accuracy of channel information or interference from another base station or another wireless communication system. A wireless communication system includes a first wireless station including a plurality of antenna elements, transmission units corresponding to the plurality of antenna elements, and a transmission directivity control unit that controls transmission directivity of the plurality of antenna elements, and a plurality of second wireless stations each including a reception power measurement unit that measures a reception power. The transmission directivity control unit determines the transmission directivity of each of the plurality of antenna elements so that a signal does not reach a particular second wireless station among the plurality of second wireless stations. The transmission units generate wireless signals using the transmission directivity. The plurality of antenna elements transmit the generated wireless signals. The reception power measurement unit measures the reception power in a period that is set so that a signal does not reach the particular second wireless station, and detect the presence or absence of interference.
摘要翻译：防止由于信道信息的低精度或来自另一基站或另一无线通信系统的干扰而引起的干扰而导致通信质量恶化。无线通信系统包括：包括多个天线元件的第一无线站，对应于多个天线元件的发送单元，以及控制多个天线元件的发送方向性的发送方向性控制单元，以及多个第二无线站每个包括测量接收功率的接收功率测量单元。传输方向性控制单元确定多个天线元件中的每一个的传输方向性，使得信号在多个第二无线站中没有到达特定的第二无线站。传输单元使用传输方向性产生无线信号。多个天线元件发送生成的无线信号。接收功率测量单元在被设置为使得信号不到达特定的第二无线站的时间段内测量接收功率，并且检测是否存在干扰。

4. 发明申请

US20120099864A1 CHROMATIC DISPERSION VALUE CALCULATING APPARATUS, OPTICAL SIGNAL RECEIVING APPARATUS, OPTICAL SIGNAL TRANSMITTING APPARATUS, AND CHROMATIC DISPERSION VALUE CALCULATION METHOD 有权
标题翻译：色散值计算装置，光信号接收装置，光信号传输装置和色散值计算方法
公开(公告)号：US20120099864A1
公开(公告)日：2012-04-26
申请号：US13380432
申请日：2010-07-14
申请人： Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Masato Mizoguchi , Tadao Nakagawa , Etsushi Yamazaki , Akihide Sano , Yutaka Miyamoto , Eiji Yoshida , Shogo Yamanaka
发明人： Koichi Ishihara , Takayuki Kobayashi , Riichi Kudo , Yasushi Takatori , Munehiro Matsui , Masato Mizoguchi , Tadao Nakagawa , Etsushi Yamazaki , Akihide Sano , Yutaka Miyamoto , Eiji Yoshida , Shogo Yamanaka
IPC分类号： H04J14/06 , H04B10/00
CPC分类号： H04B10/0775 , H04B3/06 , H04B10/25133
摘要： In order to compensate for chromatic dispersion caused by optical fiber transmission in a communication system with coherent detection using optical signals, specific frequency band signals are used to enable estimation of a chromatic dispersion value. The chromatic dispersion value calculating apparatus is provided with: a signal distributing circuit which distributes, into a plurality of signal sequences, an electrical digital signal converted from received optical signals of an optical signal transmitted by an optical signal transmitting apparatus, in which a known signal with concentrated frequency components of a plurality of specific frequencies is appended to a signal generated from a transmission data sequence; a plurality of frequency band pass filter circuits, each of which separating only each of a plurality of specific frequency components in which the known signal is included from each of the signal sequences distributed by the signal distributing circuit, and passing each of the specific frequency components therethrough; a plurality of power calculating circuits which are provided so as to correspond respectively to the plurality of frequency band pass filter circuits and which calculate power values of signals output from the corresponding frequency band pass filter circuits; a delay time calculating circuit which detects times at which power has the maximum value or times at which the power exceeds a predetermined threshold value, respectively from signal sequences of the power values output from the plurality of power calculating circuits, and which compares the detected times; and a chromatic dispersion value calculating circuit which calculates a chromatic dispersion value based on a comparison result of the times by the delay time calculating circuit.
摘要翻译：为了补偿在使用光信号的相干检测的通信系统中由光纤传输引起的色散，使用特定的频带信号来使得能够估计色散值。色散值计算装置具有：信号分配电路，其将由光信号发送装置发送的光信号的接收光信号转换成的数字信号分配成多个信号序列，其中已知信号将多个特定频率的集中频率分量附加到从发送数据序列生成的信号上; 多个频带滤波器电路，每个频带通滤波器电路仅分离由信号分配电路分配的每个信号序列中包含已知信号的多个特定频率分量中的每一个，并且使每个特定频率分量通过多个功率计算电路，被设置为分别对应于所述多个频带滤波器电路，并且计算从相应的频带滤波器电路输出的信号的功率值; 延迟时间计算电路，分别从多个功率计算电路输出的功率值的信号序列中分别检测功率达到功率超过预定阈值的最大值或多次的时间，并且将延迟时间计算电路 ; 以及色散值计算电路，其基于延迟时间计算电路的时间的比较结果来计算色散值。

5. 发明申请

US20120099460A1 RADIO COMMUNICATION METHOD, RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, AND RADIO TERMINAL STATION 有权
标题翻译：无线电通信方法，无线电通信系统，无线电基站和无线电终端站
公开(公告)号：US20120099460A1
公开(公告)日：2012-04-26
申请号：US13375065
申请日：2010-07-08
申请人： Tomoki Murakami , Takeo Ichikawa , Riichi Kudo , Yasushi Takatori , Masato Mizoguchi , Takefumi Hiraguri , Kentaro Nishimori
发明人： Tomoki Murakami , Takeo Ichikawa , Riichi Kudo , Yasushi Takatori , Masato Mizoguchi , Takefumi Hiraguri , Kentaro Nishimori
IPC分类号： H04W24/00
CPC分类号： H04W72/0453 , H04B7/024 , H04B7/0452 , H04B7/0617 , H04B7/0697 , H04B17/318 , H04B17/382 , H04W72/046 , H04W72/082
摘要： This radio communication method is used to perform spatial multiplexing communication between cells in the overlap cell environment. In the MU-MIMO overlap cell environment, when a null is formed between a radio base station and a radio terminal station belonging to different cells, a first set of a “call signal” and a “response signal” is used to perform mutual detection with the radio base station and the radio terminal station belonging to different cells, and then a null is formed so as not to cause interference of radio waves between the radio base station and the radio terminal station belonging to different cells. At this time, the addresses of the radio base station and the radio terminal station are used to discriminate whether the radio base station and the radio terminal station belong to the same cell or different cells.
摘要翻译：该无线通信方法用于在重叠小区环境中进行小区间的空间复用通信。在MU-MIMO重叠小区环境中，当在无线基站和属于不同小区的无线终端站之间形成空值时，使用第一组“呼叫信号”和“响应信号”进行相互检测无线电基站和无线电终端站属于不同的小区，然后形成一个零点，以免引起无线电基站和属于不同小区的无线电终端站之间的无线电波的干扰。此时，无线基站和无线终端站的地址用于区分无线基站和无线终端站是否属于同一小区或不同的小区。

6. 发明授权

US08891555B2 Spatial multiplexing wireless transmission system, spatial multiplexing wireless transmission method and computer program 有权
标题翻译：空间复用无线传输系统，空间复用无线传输方法和计算机程序
公开(公告)号：US08891555B2
公开(公告)日：2014-11-18
申请号：US13579220
申请日：2011-02-24
申请人： Koichi Ishihara , Yasushi Takatori , Yusuke Asai , Riichi Kudo , Wenjie Jiang , Tomoyuki Yamada , Masato Mizoguchi
发明人： Koichi Ishihara , Yasushi Takatori , Yusuke Asai , Riichi Kudo , Wenjie Jiang , Tomoyuki Yamada , Masato Mizoguchi
IPC分类号： H04J3/24 , H04B7/06 , H04B7/08 , H04B7/04 , H04B7/10
CPC分类号： H04B7/0691 , H04B7/0452 , H04B7/0834 , H04B7/0874 , H04B7/0877 , H04B7/10
摘要： A spatial multiplexing wireless transmission system is formed by a base station, and by a plurality of terminal stations that are provided with a plurality of antennas. The base station is provided with an information signal generating portion, a control signal generating portion, a transmission frame generating portion, a multiple beamforming portion, a transmission/reception switching portion, a reception signal processing portion, a propagation environment estimating portion, and an antenna information generating portion. At least one of the terminal stations is provided with a transmission/reception switching portion, a reception signal processing portion, a decoding portion, an antenna information extracting portion, an antenna information generating portion, an transmitting portion, a battery, a remaining battery detecting portion, a transmission request extracting portion, and a propagation environment estimating portion.
摘要翻译：空间复用无线传输系统由基站和多个设置有多个天线的终端站形成。基站设置有信息信号生成部，控制信号生成部，发送帧生成部，多波束形成部，发送接收切换部，接收信号处理部，传播环境估计部以及天线信息生成部。至少一个终端站设置有发送/接收转换部分，接收信号处理部分，解码部分，天线信息提取部分，天线信息产生部分，发送部分，电池，剩余电池检测传输请求提取部分和传播环境估计部分。

7. 发明授权

US08781029B2 Frequency offset estimation apparatus, reception apparatus, frequency offset estimation method, and reception method 有权
标题翻译：频率偏移估计装置，接收装置，频率偏移估计方法和接收方法
公开(公告)号：US08781029B2
公开(公告)日：2014-07-15
申请号：US13701963
申请日：2011-06-17
申请人： Tadao Nakagawa , Munehiro Matsui , Koichi Ishihara , Riichi Kudo , Takayuki Kobayashi , Etsushi Yamazaki , Akihide Sano , Eiji Yoshida , Masato Mizoguchi , Yutaka Miyamoto , Yasushi Takatori
发明人： Tadao Nakagawa , Munehiro Matsui , Koichi Ishihara , Riichi Kudo , Takayuki Kobayashi , Etsushi Yamazaki , Akihide Sano , Eiji Yoshida , Masato Mizoguchi , Yutaka Miyamoto , Yasushi Takatori
IPC分类号： H03K9/10 , H04L17/14
CPC分类号： H04L27/14 , H04B7/10 , H04B10/611 , H04B10/6164 , H04B17/327 , H04L27/2659 , H04L2027/0026 , H04L2027/0032 , H04L2027/0046
摘要： Provided is a frequency offset estimation apparatus that appropriately estimates and compensates for a frequency offset of a received signal when estimating the frequency offset which is the difference between a carrier frequency of the received signal and the frequency of an output signal of a local oscillator. The frequency offset estimation apparatus converts the received signal sampled in advance with a predetermined sampling frequency into a frequency spectrum having N frequency components, limits a frequency band of negative frequency components from 1 to N/2 of the frequency spectrum and a frequency band of positive frequency components from N/2+1 to N of the frequency spectrum, calculates the sum of the squares of the positive frequency components of the frequency spectrum that have been subjected to frequency band limitation and the sum of the squares of the negative frequency components of the frequency spectrum that have been subjected to frequency band limitation to calculate power of the positive frequency components and power of the negative frequency components, and cyclically shifts all frequency components of the frequency spectrum in a frequency domain until the absolute value of a power difference between the power of the positive frequency components and the power of the negative frequency components is less than or equal to a predetermined threshold value, and estimates the frequency offset based on a shift amount until the absolute value is less than or equal to the threshold value.
摘要翻译：提供一种频率偏移估计装置，其在估计作为接收信号的载波频率与本地振荡器的输出信号的频率之间的差的频率偏移时，适当地估计和补偿接收信号的频率偏移。频率偏移估计装置将预先采样的接收信号以预定的采样频率转换成具有N个频率分量的频谱，将频谱的负频率分量的频带从1到N / 2限制，并且频带为正频率分量从频谱的N / 2 + 1到N的频率分量计算已经经受频带限制的频谱的正频率分量的平方和的和的频率分量的平方和之和已经进行了频带限制的频谱，以计算正频率分量的功率和负频率分量的功率，并且循环移位频域中的频谱的所有频率分量，直到频域中的频差的绝对值正频率分量的功率和ne的功率同步频率分量小于或等于预定阈值，并且基于偏移量来估计频率偏移，直到绝对值小于或等于阈值。

8. 发明申请

US20140016929A1 METHOD FOR ESTIMATING AMOUNT OF WAVELENGTH DISPERSION, WAVELENGTH DISPERSION COMPENSATION CIRCUIT, AND RECEIVING DEVICE 有权
标题翻译：估计波长分散量，波长分散补偿电路和接收装置的方法
公开(公告)号：US20140016929A1
公开(公告)日：2014-01-16
申请号：US13981298
申请日：2012-01-24
申请人： Etsushi Yamazaki , Takayuki Kobayashi , Masahito Tomizawa , Riichi Kudo , Koichi Ishihara , Tadao Nakagawa , Mitsuteru Ishikawa
发明人： Etsushi Yamazaki , Takayuki Kobayashi , Masahito Tomizawa , Riichi Kudo , Koichi Ishihara , Tadao Nakagawa , Mitsuteru Ishikawa
IPC分类号： H04B10/079
CPC分类号： H04B10/07951 , H04B10/2513
摘要： A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path. A wavelength dispersion compensation circuit includes an analog-digital converter which converts an optical analog waveform received from the optical fiber transmission path to a digital signal, a digital signal processor which compensates waveform distortion of the digital signal output from the analog-digital converter due to wavelength dispersion at the optical fiber transmission path with a dispersion compensation amount estimated with the wavelength dispersion amount estimation method, and a symbol clock extractor which extracts a symbol arrival timing clock of received data contained in the digital signal output from the analog-digital converter and outputs strength of the symbol arrival timing clock as the clock detection value.
摘要翻译：波长色散量估计方法，波长色散补偿电路和接收装置，其快速估计和设置在补偿光纤传输路径上的波形失真的接收装置处以高精度补偿的波长色散量。波长色散补偿电路包括将从光纤传输路径接收的光模拟波形转换为数字信号的模拟数字转换器，用于补偿由于模拟数字转换器输出的数字信号的波形失真，数字信号处理器由于在具有由波长色散量估计方法估计的色散补偿量的光纤传输路径处的波长色散，以及符号时钟提取器，其提取包含在从模数转换器输出的数字信号中的接收数据的符号到达定时时钟，以及输出符号到达定时时钟的强度作为时钟检测值。

9. 发明申请

US20130070874A1 FREQUENCY OFFSET ESTIMATION APPARATUS, FREQUENCY OFFSET ESTIMATION METHOD, AND RECEPTION METHOD 有权
标题翻译：频率偏移估计装置，频率偏移估计方法和接收方法
公开(公告)号：US20130070874A1
公开(公告)日：2013-03-21
申请号：US13701963
申请日：2011-06-17
申请人： Tadao Nakagawa , Munehiro Matsui , Koichi Ishihara , Riichi Kudo , Takayuki Kobayashi , Etsushi Yamazaki , Akihide Sano , Eiji Yoshida , Masato Mizoguchi , Yutaka Miyamoto , Yasushi Takatori
发明人： Tadao Nakagawa , Munehiro Matsui , Koichi Ishihara , Riichi Kudo , Takayuki Kobayashi , Etsushi Yamazaki , Akihide Sano , Eiji Yoshida , Masato Mizoguchi , Yutaka Miyamoto , Yasushi Takatori
IPC分类号： H04L27/14
CPC分类号： H04L27/14 , H04B7/10 , H04B10/611 , H04B10/6164 , H04B17/327 , H04L27/2659 , H04L2027/0026 , H04L2027/0032 , H04L2027/0046
摘要： Provided is a frequency offset estimation apparatus that appropriately estimates and compensates for a frequency offset of a received signal when estimating the frequency offset which is the difference between a carrier frequency of the received signal and the frequency of an output signal of a local oscillator. The frequency offset estimation apparatus converts the received signal sampled in advance with a predetermined sampling frequency into a frequency spectrum having N frequency components, limits a frequency band of negative frequency components from 1 to N/2 of the frequency spectrum and a frequency band of positive frequency components from N/2+1 to N of the frequency spectrum, calculates the sum of the squares of the positive frequency components of the frequency spectrum that have been subjected to frequency band limitation and the sum of the squares of the negative frequency components of the frequency spectrum that have been subjected to frequency band limitation to calculate power of the positive frequency components and power of the negative frequency components, and cyclically shifts all frequency components of the frequency spectrum in a frequency domain until the absolute value of a power difference between the power of the positive frequency components and the power of the negative frequency components is less than or equal to a predetermined threshold value, and estimates the frequency offset based on a shift amount until the absolute value is less than or equal to the threshold value.
摘要翻译：提供一种频率偏移估计装置，其在估计作为接收信号的载波频率与本地振荡器的输出信号的频率之间的差的频率偏移时，适当地估计和补偿接收信号的频率偏移。频率偏移估计装置将预先采样的接收信号以预定的采样频率转换成具有N个频率分量的频谱，将频谱的负频率分量的频带从1到N / 2限制，并且频带为正频率分量从频谱的N / 2 + 1到N的频率分量计算已经经受频带限制的频谱的正频率分量的平方和的和的频率分量的平方和之和已经经过频带限制的频谱，以计算正频率分量的功率和负频率分量的功率，并且循环移位频域中的频谱的所有频率分量，直到频域中的功率差的绝对值正频率分量的功率和ne的功率同步频率分量小于或等于预定阈值，并且基于偏移量来估计频率偏移，直到绝对值小于或等于阈值。

10. 发明申请

US20120106618A1 METHOD FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL AND DEVICE FOR RECEIVING FREQUENCY DOMAIN MULTIPLEXED SIGNAL 有权
标题翻译：用于接收频域多路信号的方法和用于接收频域多路信号的装置
公开(公告)号：US20120106618A1
公开(公告)日：2012-05-03
申请号：US13381114
申请日：2010-07-15
申请人： Riichi Kudo , Takayuki Kobayashi , Koichi Ishihara , Yasushi Takatori , Hideyuki Nosaka , Munehiro Matsui , Masato Mizoguchi , Tadao Nakagawa , Etsushi Yamazaki , Akihide Sano , Yutaka Miyamoto , Eiji Yoshida
发明人： Riichi Kudo , Takayuki Kobayashi , Koichi Ishihara , Yasushi Takatori , Hideyuki Nosaka , Munehiro Matsui , Masato Mizoguchi , Tadao Nakagawa , Etsushi Yamazaki , Akihide Sano , Yutaka Miyamoto , Eiji Yoshida
IPC分类号： H04L27/06 , H04L27/01
CPC分类号： H04L27/2672 , H04L25/03159 , H04L27/2633 , H04L27/265 , H04L27/266 , H04L2025/03414
摘要： A frequency domain multiplexed signal receiving method which decodes received signals that are multiplexed in a frequency domain, includes: a digital signal acquisition step of acquiring digital signals from the received signals that are multiplexed in the frequency domain; an offset discrete Fourier transform step of applying an offset discrete Fourier transform to odd discrete point numbers based on the acquired digital signals; and a decode step of decoding frequency domain digital signals in the frequency domain obtained by the offset discrete Fourier transform, and that are the frequency domain digital signals of one or more frequency channels.
摘要翻译：一种频域复用信号接收方法，对在频域中被复用的接收信号进行解码，包括：数字信号获取步骤，从在频域中复用的接收信号中获取数字信号; 偏移离散傅立叶变换步骤，基于所获取的数字信号将偏移离散付里叶变换应用于奇数离散点数; 以及解码步骤，对通过偏移离散付里叶变换获得的频域中的频域数字信号进行解码，并且其是一个或多个频率信道的频域数字信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式