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公开(公告)号：EP2985966A4
公开(公告)日：2016-03-30
申请号：EP14783419
申请日：2014-04-10
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04L27/0008 , H04L27/34 , H04W28/0263
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52.发明公开SIGNAL GENERATION METHOD, TRANSMISSION DEVICE, RECEPTION METHOD, AND RECEPTION DEVICE 有权信号产生方法，发送装置，接收方法以及接收设备
公开(公告)号：EP2930871A4
公开(公告)日：2015-11-18
申请号：EP13860261
申请日：2013-12-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04B7/0469 , H04B7/04 , H04B7/0413 , H04B7/0697 , H04L25/03 , H04L27/12 , H04L27/14 , H04L27/26 , H04W72/005 , H04W72/085
Abstract: A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.
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Patent Agency Ranking
公开(公告)号：EP2651064A4
公开(公告)日：2015-06-24
申请号：EP11847490
申请日：2011-12-01
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04B7/0456 , H04B7/0469 , H04B7/06 , H04B7/0606 , H04B7/0689 , H04L25/03898
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公开(公告)号：EP2854318A4
公开(公告)日：2015-05-27
申请号：EP13794325
申请日：2013-05-21
Applicant: PANASONIC IP CORP AMERICA
Inventor： OUCHI MIKIHIRO , KIMURA TOMOHIRO , MURAKAMI YUTAKA
CPC classification number: H04L5/0032 , H04B7/022 , H04B7/024 , H04B7/04 , H04B7/0413 , H04B7/0456 , H04B7/0469 , H04B7/0615 , H04B7/0619 , H04B7/0848 , H04B7/086 , H04B7/0891 , H04B7/10 , H04J11/00 , H04L5/005 , H04L12/1868 , H04W72/005 , H04W72/08
Abstract: When transmitting signals from a plurality of base stations (broadcasting stations), the base stations include at least a first base station having a first antenna with a first polarization and a second base station having a second antenna with a second polarization that is different from the first polarization. Then, when the first base station transmits a signal from the first antenna having the first polarization, the second base station transmits the same signal as the first antenna of the first base station from a second antenna having the second polarization, at the same time.
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公开(公告)号：EP2755339A4
公开(公告)日：2015-04-15
申请号：EP12830859
申请日：2012-09-06
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04B7/0469 , H04B1/0057 , H04B7/0417 , H04B7/0426 , H04B7/0456 , H04B7/0465 , H04L5/00 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L25/0222 , H04L27/20 , H04L27/34 , H04L27/36
Abstract: A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved.
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56.发明公开TRANSMISSION METHOD, TRANSMITTER APPARATUS, RECEPTION METHOD AND RECEIVER APPARATUS 有权传输方法，发送装置，接收方法和接收器设备
公开(公告)号：EP2615757A4
公开(公告)日：2015-01-14
申请号：EP11823260
申请日：2011-09-08
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04L27/265 , H04B7/0434 , H04B7/0452 , H04B7/0456 , H04B7/046 , H04B7/0473 , H04B7/0617 , H04B7/0697 , H04B7/08 , H04B7/086 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0045 , H04L1/0047 , H04L1/005 , H04L1/0057 , H04L1/0061 , H04L1/0071 , H04L1/06 , H04L1/0643 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/0026 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04L25/0226 , H04L25/0248 , H04L25/03942 , H04L25/067 , H04L27/0008 , H04L27/2602 , H04L27/2626 , H04L27/3405 , H04L2001/0093
Abstract: Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.
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公开(公告)号：EP2701326A4
公开(公告)日：2014-08-27
申请号：EP12774322
申请日：2012-04-18
Applicant: PANASONIC IP CORP AMERICA
Inventor： MURAKAMI YUTAKA , KIMURA TOMOHIRO , OUCHI MIKIHIRO
CPC classification number: H04B7/0697 , H04B7/0413 , H04B7/0426 , H04B7/0456 , H04B7/046 , H04B7/0465 , H04B7/0617 , H04B7/0682 , H04B7/0862 , H04J11/0033 , H04L25/0391 , H04W52/42
Abstract: A transmission method for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. Each signal has been modulated according to a different modulation sheme. The transmission method applies precoding on both signals using a fixed precoding matrix, applies different power change to each signal, and regularly changes the phase of at least one of the signals, thereby improving received data signal quality for a reception device.
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