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公开(公告)号：EP1633067A4
公开(公告)日：2012-01-04
申请号：EP04747242
申请日：2004-07-02
申请人： PANASONIC CORP
IPC分类号： H04J99/00 , H04B1/707 , H04B7/005 , H04B7/02 , H04B7/06 , H04J11/00 , H04L20060101 , H04L1/00 , H04L27/18 , H04L27/34 , H04L27/36 , H04W16/28 , H04W72/04
CPC分类号： H04L27/0008 , H04B7/0413 , H04B7/0417 , H04B7/0669 , H04L1/0006 , H04L1/0026 , H04L1/06 , H04L1/0618 , H04L1/08 , H04L5/0046 , H04L27/3405 , H04W52/42
摘要： Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a secondantenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)' obtained by changing the signal point arrangement of the same data are transmitted at time i and time i + 1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.
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2.发明公开
公开(公告)号：EP1684454A4
公开(公告)日：2013-07-03
申请号：EP04818932
申请日：2004-11-17
申请人： PANASONIC CORP
发明人： MURAKAMI YUTAKA , KOBAYASHI KIYOTAKA , ORIHASHI MASAYUKI , MATSUOKA AKIHIKO , IMAMURA DAICHI , MALIK RAHUL
CPC分类号： H04B7/0413 , H04B7/0851 , H04L1/0057 , H04L1/0071 , H04L1/0086 , H04L1/0618 , H04L1/1819 , H04L5/0023 , H04L25/03229 , H04L25/03305 , H04L25/03324 , H04L25/03891 , H04L27/2628 , H04L27/265 , H04L2025/03414 , H04L2025/03611
摘要： Soft decision sections (503, 506) provisionally decide each modulated signal (502, 505) separated using an inverse matrix calculation of a channel fluctuation matrix at separation section (501). Signal point reduction sections (508, 510, 514, 516) reduce candidate signal points of a multiplexed modulated signal using the provisional decision results (504, 507). Soft decision sections (512, 518) make a correct decision using the reduced candidate signal points and obtain received data (RA, RB) of each modulated signal. This allows received data RA, RB with a good error rate characteristic to be obtained with a relatively small number of calculations without reducing data transmission efficiency.
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公开(公告)号：EP1641163A4
公开(公告)日：2012-03-07
申请号：EP04747041
申请日：2004-06-30
申请人： PANASONIC CORP
CPC分类号： H04B7/0413 , H04B7/0608 , H04B7/0613 , H04B7/0689 , H04B7/0697 , H04L1/06
摘要： Of any one of transmission method X of transmitting modulated signal A and modulated signal B including the same data from a plurality of antennas and transmission method Y of transmitting modulated signal A and modulated signal B having different data from the plurality of antennas, base station apparatus 201 does not change the transmission method during data transmission and changes only the modulation scheme. Base station apparatus 201 transmits modulated signal A and modulated signal B to communication terminal apparatus 251 using the determined transmission method and modulation scheme. In this way, it is possible to improve data transmission efficiency when transmitting data using the plurality of antennas.
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4.发明公开
公开(公告)号：EP1667340A4
公开(公告)日：2011-12-28
申请号：EP04787834
申请日：2004-09-09
申请人： PANASONIC CORP
IPC分类号： H04K1/00 , H04W84/00 , H04B7/02 , H04B7/06 , H04B7/08 , H04B7/26 , H04J11/00 , H04J99/00 , H04L25/02 , H04L27/26 , H04W12/00 , H04W16/28 , H04W84/12 , H04W88/02
CPC分类号： H04B7/0604 , H04B7/0608 , H04B7/0689 , H04B7/0691 , H04L25/0204 , H04L25/0224 , H04L27/18 , H04L27/2601 , H04L27/261
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5.发明公开
公开(公告)号：EP1708398A4
公开(公告)日：2011-06-15
申请号：EP05710068
申请日：2005-02-10
申请人： PANASONIC CORP
CPC分类号： H04L1/0618
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公开(公告)号：EP2582078A4
公开(公告)日：2017-06-14
申请号：EP11792131
申请日：2011-06-06
申请人： PANASONIC CORP
发明人： YOMO HIDEKUNI , KOBAYASHI KIYOTAKA
CPC分类号： H04L25/03318 , H04B7/0697 , H04B7/086 , H04L25/0204 , H04L25/0232 , H04L25/03171 , H04L25/03891 , H04L25/03955 , H04L2025/03426
摘要： A MIMO receiving apparatus that can demodulate a spatially multiplexed signal without using any division operation requiring a large quantity of operation resources. In the MIMO receiving apparatus, stream separation section (105) separates a spatially multiplexed signal into a plurality of streams based on numerator submatrix A. Numerator submatrix A is determined according to channel matrix H and a canceller scheme and corresponds to a numerator of stream separation matrix S that equalizes the phase and amplitude of the spatially multiplexed signal. Denominator part calculation section (108) calculates a denominator (denominator coefficient) of stream separation matrix S and correction section (117) corrects a threshold determined according to a modulation scheme of the spatially multiplexed signal using the denominator (denominator coefficient) of stream separation matrix S. Demapping sections (109-1 to 109-3) calculate likelihoods of the plurality of streams through a threshold decision using the corrected threshold.
摘要翻译： 本发明提供一种MIMO接收装置，能够解调空间复用信号，而无需使用任何需要大量操作资源的分割操作。 在MIMO接收装置中，流分离单元（105）基于分子子矩阵A将空间复用信号分离为多个流。分子子矩阵A根据信道矩阵H和消除器方式来决定，与流分离的分子对应 矩阵S，其均衡空间多路复用信号的相位和幅度。 分母部分计算部分108计算流分离矩阵S的分母（分母系数），并且校正部分117使用流分离矩阵的分母（分母系数）校正根据空间复用信号的调制方案确定的阈值 S.解映射部分（109-1至109-3）使用校正的阈值通过阈值判定来计算多个流的可能性。
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公开(公告)号：EP1906576A4
公开(公告)日：2013-12-11
申请号：EP06783007
申请日：2006-08-24
申请人： PANASONIC CORP
IPC分类号： H04B7/005 , H04B7/04 , H04B7/06 , H04J11/00 , H04J13/18 , H04L5/00 , H04L25/02 , H04L27/00 , H04L27/26
CPC分类号： H04L5/0048 , H04B7/0413 , H04B2201/70701 , H04J13/18 , H04L5/0007 , H04L5/0023 , H04L25/0206 , H04L27/2613 , H04L27/2628 , H04L27/265 , H04L27/2657 , H04L2027/0024
摘要： AMIMO-OFDM transmission apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. Pilot symbol mapping (1111) is provided for forming pilot carriers by assigning orthogonal sequences to corresponding subcarriers among OFDM signals which are transmitted at the same time from respective antennas in the time domain. Even when pilot symbols are multiplexed among a plurality of channels (antennas), this allows frequency offset/phase noise to be estimated with high accuracy.
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8.发明公开COMMUNICATION METHOD, TRANSMITTER APPARATUS AND RECEIVER APPARATUS 有权KOMMUNIKATIONSVERFAHREN，SENDERVORRICHTUNG UNDEMPFÄNGERVORRICHTUNG
公开(公告)号：EP1511189A4
公开(公告)日：2011-06-29
申请号：EP03775880
申请日：2003-11-26
申请人： PANASONIC CORP
CPC分类号： H04L5/023 , H04L1/0003 , H04L1/0618
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