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1.发明授权A COMMUNICATION SYSTEM FOR TRANSMITTING AND DEMODULATING A COMMUNICATION SIGNAL USING AN ADAPTIVE ANTENNA ARRAY 有权新闻系统与自适应天线群发和解调新闻SIGNALS
公开(公告)号：EP1092273B1
公开(公告)日：2007-10-10
申请号：EP99935337.8
申请日：1999-06-22
申请人： MOTOROLA, INC.
CPC分类号： H04B7/0626 , H01Q3/2605 , H04B7/0632
摘要： In a transceiver for transmitting a communication signal from an antenna array (302) in a wireless communication system, a different element pilot is transmitted from a plurality of antenna elements in an antenna array. Thereafter, transmitter control data based upon measured characteristics of the element pilots as measured at a subscriber unit is received at the transceiver (308). In response to the transmitter control data, a plurality of adaptive array weights for modifying a plurality of element communication signals are determined (306). Next, the transceiver determines that the subscriber unit is ready to receive a communication signal transmitted from the antenna array (312) and weighted according to the plurality of adaptive array weights (306). In response to determining that the subscriber unit is ready, the transceiver modifies the plurality of element communication signals according to the determined plurality of adaptive array weights.
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2.发明授权METHOD AND APPARATUS FOR TRANSMULTIPLEXER A MULTI-CHANNEL INFORMATION SIGNAL 失效DEVICE AND METHOD FOR TRANS复用的多声道信息信号
公开(公告)号：EP0783812B1
公开(公告)日：2004-04-14
申请号：EP96921770.2
申请日：1996-06-25
申请人： MOTOROLA INC.
CPC分类号： H04J4/005
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公开(公告)号：EP1552623A2
公开(公告)日：2005-07-13
申请号：EP03817480.1
申请日：2003-05-13
申请人： MOTOROLA, INC.
CPC分类号： H04B7/0634 , H04B7/0656
摘要： A method (500) of and apparatus (400) for adapting an antenna array for closed loop transmit diversity, the method comprising: receiving (503) an adapting signal corresponding to an antenna array weighting pattern for a time period; demodulating (505) the adapting signal to provide a symbol for the time period; determining (507) a preferred symbol from the symbol for the time period and a previous symbol for a previous time period; and transmitting (515) with an antenna array weighting pattern corresponding to the preferred symbol.
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4.发明公开METHOD AND APPARATUS FOR TRANSMULTIPLEXER A MULTI-CHANNEL INFORMATION SIGNAL 失效DEVICE AND METHOD FOR TRANS复用的多声道信息信号
公开(公告)号：EP0783812A2
公开(公告)日：1997-07-16
申请号：EP96921770.0
申请日：1996-06-25
申请人： MOTOROLA INC.
CPC分类号： H04J4/005
摘要： A filter fast Fourier transmultiplexer (216) divides a multi-channel communication signal into single channel communication signals through a cascade of filters (304, 314, 348, 354, 360, 366, 404-418) and mixers (604-610). The output sample rate is maintained at the input sample and memory requirements and multiplications are substantially reduced.
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5.发明公开METHOD AND SYSTEM FOR COMBINING ORTHOGONAL TRANSMIT DIVERSITY AND ADAPTIVE ARRAY TECHNIQUES IN A WIRELESS COMMUNICATIONS SYSTEM 有权方法和系统COMBININGORTHOGONALSENDEDIVERSITÄT和自适应天线组技术，无线通信系统
公开(公告)号：EP1127416A1
公开(公告)日：2001-08-29
申请号：EP99950224.8
申请日：1999-10-05
申请人： MOTOROLA, INC.
IPC分类号： H04B1/69
摘要： In a method for producing antenna element signals (112 and 114) for transmitting a serial traffic channel (58) from a plurality of elements (116 and 118) in an antenna array, data in the serial traffic channel is converted to data in two or more parallel traffic channels (64 and 66). Thereafter, data in the two or more parallel traffic channels are spread with different spreading codes (68 and 70) to produce spread traffic signals (72 and 74). The spread traffic signals are combined to produce combined signals (80), which are each modified according to adaptive array weigths (90 and 92) to produce element signals (94 and 96). A pilot signal is then added (98) to at least one of the element signals to produce two or more antenna element signals (94 and 96).
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6.发明公开A COMMUNICATION SYSTEM FOR TRANSMITTING AND DEMODULATING A COMMUNICATION SIGNAL USING AN ADAPTIVE ANTENNA ARRAY 有权新闻系统与自适应天线群发和解调新闻SIGNALS
公开(公告)号：EP1092273A1
公开(公告)日：2001-04-18
申请号：EP99935337.8
申请日：1999-06-22
申请人： MOTOROLA, INC.
CPC分类号： H04B7/0626 , H01Q3/2605 , H04B7/0632
摘要： In a transceiver for transmitting a communication signal from an antenna array (302) in a wireless communication system, a different element pilot is transmitted from a plurality of antenna elements in an antenna array. Thereafter, transmitter control data based upon measured characteristics of the element pilots as measured at a subscriber unit is received at the transceiver (308). In response to the transmitter control data, a plurality of adaptive array weights for modifying a plurality of element communication signals are determined (306). Next, the transceiver determines that the subscriber unit is ready to receive a communication signal transmitted from the antenna array (312) and weighted according to the plurality of adaptive array weights (306). In response to determining that the subscriber unit is ready, the transceiver modifies the plurality of element communication signals according to the determined plurality of adaptive array weights.
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7.发明公开A METHOD AND MEANS FOR TRANSMULTIPLEXING SIGNALS BETWEEN SIGNAL TERMINALS AND RADIO FREQUENCY CHANNELS 失效TRANSMULTIPLEXERVERFAHREN与和之间的接收设施和无线电通信装置的安排。
公开(公告)号：EP0623265A1
公开(公告)日：1994-11-09
申请号：EP93923856.0
申请日：1993-10-12
申请人： MOTOROLA, INC.
CPC分类号： H04J4/005 , H03H17/0211 , H03H17/0251
摘要： Sont décrits un procédé et des moyens pour transmultiplexer une pluralité de signaux entre une pluralité de terminaux de signaux (17 ou 29) et une pluralité de radiocanaux sélectionnés. Ce procédé consiste, à l'aide de moyens prévus à cet effet, à transposer en fréquence et à filtrer la pluralité de signaux entre la pluralité de canaux sélectionnés et une batterie de filtres polyphasés à transformée de Fourier discrète (16 ou 21), au sein d'un filtre-peigne (15 ou 22). Le procédé consiste également à multiplexer par répartition en fréquence la pluralité de signaux entre la pluralité de terminaux de réception de signaux et un filtre-peigne (15 ou 22), au sein d'une batterie de filtres polyphasés à transformée de Fourier discrète (16 ou 21).
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