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公开(公告)号：EP2737624B1
公开(公告)日：2017-08-09
申请号：EP12755902.9
申请日：2012-06-27
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： MORRIS, Bradley John , MCGOWAN, Neil , KILAMBI, Sai Mohan
CPC classification number: H04L27/2614 , H03F1/3282 , H03F3/189 , H03F3/245 , H03F2200/111 , H03F2200/336 , H03F2200/429 , H03G7/007 , H04L25/03343
Abstract: Peak power reduction in transmit chains of multi-band radiocommunication devices is performed. By using knowledge of the phase transformations which occur at the upconverter to determine how baseband signal samples will combine at the higher (upconverted) frequency, peak prediction and corresponding baseband signal modification can be performed in a way that reduces peak power of the combined signal.
Abstract translation: 执行多频段无线电通信设备发射链中的峰值功率降低。 通过使用在上变频器处出现的相变知识来确定基带信号样本如何在较高（上变频）的频率处组合，可以以降低组合信号的峰值功率的方式执行峰值预测和相应的基带信号修改。
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公开(公告)号：EP2415168B1
公开(公告)日：2016-08-17
申请号：EP10711373.0
申请日：2010-03-22
Applicant: KATHREIN-Werke KG
Inventor： KENINGTON, Peter
CPC classification number: H01Q3/267 , H03F1/3247 , H03F1/3282 , H04B7/063 , H04B17/21
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公开(公告)号：EP2737624A1
公开(公告)日：2014-06-04
申请号：EP12755902.9
申请日：2012-06-27
Applicant: Telefonaktiebolaget L M Ericsson (publ)
Inventor： MORRIS, Bradley John , MCGOWAN, Neil , KILAMBI, Sai Mohan
CPC classification number: H04L27/2614 , H03F1/3282 , H03F3/189 , H03F3/245 , H03F2200/111 , H03F2200/336 , H03F2200/429 , H03G7/007 , H04L25/03343
Abstract: Peak power reduction in transmit chains of multi-band radiocommunication devices is performed. By using knowledge of the phase transformations which occur at the upconverter to determine how baseband signal samples will combine at the higher (upconverted) frequency, peak prediction and corresponding baseband signal modification can be performed in a way that reduces peak power of the combined signal.
Abstract translation: 执行多频带无线电通信设备的发射链中的峰值功率降低。 通过使用在上变频器上发生的相变的知识来确定基带信号样本将如何在较高（上变频）频率下组合，可以以降低组合信号的峰值功率的方式执行峰值预测和对应的基带信号修改。
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公开(公告)号：EP2212992B1
公开(公告)日：2014-05-21
申请号：EP07835369.5
申请日：2007-10-26
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： GUSTAVSSON, Ulf
CPC classification number: H03F1/0294 , H03F1/3241 , H03F1/3282 , H03F3/211 , H03F3/24 , H03F2200/324 , H03F2200/451 , H04B1/0483
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公开(公告)号：EP1416628B1
公开(公告)日：2013-12-25
申请号：EP02024263.2
申请日：2002-10-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Christensen, Steen Borg , Gentsch, Morten Brok
CPC classification number: H03F3/245 , H03F1/3247 , H03F1/3282 , H03F3/601 , H03F2200/102 , H03F2200/453 , H03F2200/456 , H03F2200/78
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Patent Agency Ranking
公开(公告)号：EP2145386B1
公开(公告)日：2013-11-20
申请号：EP08737165.4
申请日：2008-05-02
Applicant: Astrium Limited
Inventor： COUCHMAN, Alan, David , JONES, Daryl, Richard
CPC classification number: H03F3/602 , H03F1/0205 , H03F1/3235 , H03F1/3247 , H03F1/3282 , H03F1/345 , H03F3/68 , H03F2200/105 , H03F2200/192 , H03F2200/204 , H03F2200/451 , H03F2201/3212 , H03F2201/3218
Abstract: Feedback loops are used within a Multiport Amplifier (MPA) of a communications satellite to maintain phase and amplitude tracking and hence isolation and combining performance. at Ku and Ka-bands, for which there is increasing interest in MPA applications, and where wavelengths are short and maintenance of phase/amplitude tracking becomes highly challenging. Feedback loops are located at strategic points within the MPA Output Network (ONET) to detect tracking errors and provide compensation. Errors are detected through power measurements at “null points”, with zero power corresponding to accurate tracking. The feedback loops adjust the MPA phase/gains such that the levels at these points are maintained at zero. The scheme operates with a pilot signal for measurement of nulls, injected at one of the MPA inputs.
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7.发明授权Power series digital predistorter and distortion compensation control method thereof 有权其数字和Potenzreihenvorverzerrer失真补偿方法
公开(公告)号：EP2362543B1
公开(公告)日：2013-07-24
申请号：EP11155839.1
申请日：2011-02-24
Applicant: NTT DOCOMO, INC.
Inventor： Ohkawara, Junya , Suzuki, Yasunori , Narahashi, Shoichi
IPC: H03F1/32
CPC classification number: H03F1/3282 , H03F1/3247 , H03F1/3258
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8.发明公开TRANSMITTER, TRANSCEIVER, COMMUNICATION DEVICE, METHOD AND COMPUTER PROGRAM 有权发射机，收发机，通信设备，方法和计算机程序
公开(公告)号：EP2608415A1
公开(公告)日：2013-06-26
申请号：EP11194588.7
申请日：2011-12-20
Applicant: Telefonaktiebolaget L M Ericsson (Publ)
Inventor： Mu, Fenghao , Lindoff, Bengt
CPC classification number: H04L27/0008 , H03F1/02 , H03F1/0211 , H03F1/0222 , H03F1/0227 , H03F1/3282 , H03F3/19 , H03F3/217 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/336 , H03F2200/451 , H03F2201/3212 , H04B1/04 , H04B1/406 , H04B2001/045 , H04J11/00 , H04L1/203 , H04L27/362 , H04L43/16 , H04L45/745 , H04W52/0209 , H04W52/52 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/0453 , H04W72/0473 , H04W88/12 , Y02D70/1222 , Y02D70/1262 , Y02D70/40
Abstract: A transmitter comprising a power amplifier, a phase modulator, a switched DC-DC converter, all operating in dual mode, and a controller is disclosed. The power amplifier is arranged to selectively operate either in a first mode or in a second mode, wherein the first mode is a linear mode and the second mode is a non-linear mode in order to save power with least increasing cost in hardware. The transmitter is adapted to operate at different allocated bandwidths, for different radio standards while keeping minimum power consumption governed by the controller. A transceiver, a communication device, a method and a computer program are also disclosed.
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9.发明公开Power series digital predistorter and distortion compensation control method thereof 有权其数字和Potenzreihenvorverzerrer失真补偿方法
公开(公告)号：EP2362543A3
公开(公告)日：2012-10-24
申请号：EP11155839.1
申请日：2011-02-24
Applicant: NTT DOCOMO, INC.
Inventor： Ohkawara, Junya , Suzuki, Yasunori , Narahashi, Shoichi
IPC: H03F1/32
CPC classification number: H03F1/3282 , H03F1/3247 , H03F1/3258
Abstract: Coefficients W 0 , W 1 and W 2 to be used in finding a new quadratic function f 2 (W) indicating dependence of a distortion component on an coefficient by the least square method are obtained as values that satisfy a relational expression f 1 (W 0 ) = f 1 (W 2 ) = f 1 (W 1 ) + P (where P is a true value) on the basis of a quadratic function f 1 (W) indicating unupdated distortion component coefficient dependence.
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公开(公告)号：EP1253708B1
公开(公告)日：2012-02-29
申请号：EP02009591.5
申请日：2002-04-26
Applicant: Hitachi Kokusai Electric Inc.
Inventor： Okubo, Yoichi , Funada, Kiyoshi , Suto, Masaki , Horaguchi, Masato , Takada, Toshio , Hongo, Naoki
IPC: H03F1/32
CPC classification number: H03F1/3247 , H03F1/3205 , H03F1/3282 , H03F1/3288 , H03F2200/102 , H03F2201/3206 , H03F2201/3233
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