BRPI0923438A2 - redução de potência de pico seletiva - Google Patents

redução de potência de pico seletiva

Info

Publication number
BRPI0923438A2
BRPI0923438A2 BRPI0923438A BRPI0923438A BRPI0923438A2 BR PI0923438 A2 BRPI0923438 A2 BR PI0923438A2 BR PI0923438 A BRPI0923438 A BR PI0923438A BR PI0923438 A BRPI0923438 A BR PI0923438A BR PI0923438 A2 BRPI0923438 A2 BR PI0923438A2
Authority
BR
Brazil
Prior art keywords
peak power
power reduction
selective peak
selective
reduction
Prior art date
Application number
BRPI0923438A
Other languages
English (en)
Inventor
Arthur Thomas Gerald Fuller
Bradley John Morris
Original Assignee
Nortel Networks Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nortel Networks Ltd filed Critical Nortel Networks Ltd
Publication of BRPI0923438A2 publication Critical patent/BRPI0923438A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L5/00—Automatic control of voltage, current, or power
    • H03L5/02—Automatic control of voltage, current, or power of power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmitters (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Amplifiers (AREA)
BRPI0923438A 2008-12-17 2009-12-02 redução de potência de pico seletiva BRPI0923438A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/337,444 US8068558B2 (en) 2008-12-17 2008-12-17 Selective peak power reduction
PCT/IB2009/007649 WO2010070406A2 (en) 2008-12-17 2009-12-02 Selective peak power reduction

Publications (1)

Publication Number Publication Date
BRPI0923438A2 true BRPI0923438A2 (pt) 2016-01-12

Family

ID=42240499

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0923438A BRPI0923438A2 (pt) 2008-12-17 2009-12-02 redução de potência de pico seletiva

Country Status (9)

Country Link
US (4) US8068558B2 (pt)
EP (1) EP2380280A4 (pt)
JP (1) JP5364795B2 (pt)
KR (1) KR101459182B1 (pt)
CN (1) CN102257732B (pt)
BR (1) BRPI0923438A2 (pt)
CA (1) CA2745072C (pt)
RU (1) RU2494534C2 (pt)
WO (1) WO2010070406A2 (pt)

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GB2477986C (en) * 2010-02-22 2013-12-25 Toshiba Res Europ Ltd Method and apparatus for crest factor reduction
GB201005162D0 (en) * 2010-03-29 2010-05-12 Cambridge Silicon Radio Ltd An efficient ofdm peak reduction algorithm
KR20120085635A (ko) * 2011-01-24 2012-08-01 엘지전자 주식회사 무선 통신 시스템에서 듀얼 모드 이동 단말기 및 이를 위한 제어 방법
US8548085B2 (en) 2011-06-17 2013-10-01 Telefonaktiebolaget L M Ericsson (Publ) Multi-carrier peak power reduction in frequency hopping systems
US9215120B2 (en) * 2011-12-21 2015-12-15 Telefonaktiebolaget L M Ericsson (Publ) Multi-band crest factor reduction
US9112634B2 (en) 2012-02-10 2015-08-18 Qualcomm Incorporated Reducing network acquisition time
DE102012209237A1 (de) * 2012-05-31 2013-12-05 Robert Bosch Gmbh Druckmessglühkerze
US8792572B1 (en) * 2013-05-30 2014-07-29 Telefonaktiebolaget L M Ericsson (Publ) Universal peak power reduction in communication radios
US9331882B2 (en) * 2013-06-05 2016-05-03 Telefonaktiebolaget L M Ericsson (Publ) Crest factor reduction of carrier aggregated signals
CN103491045B (zh) * 2013-09-03 2016-08-24 大唐移动通信设备有限公司 多载波削峰处理方法与装置
US9008223B1 (en) * 2013-12-24 2015-04-14 Freescale Semiconductor, Inc. Transmitter and method for reducing the peak-to-average power ratio of a digitally modulated communication signal
WO2015100658A1 (zh) * 2013-12-31 2015-07-09 华为技术有限公司 一种光发射器及发射方法、光接收器及接收方法
JP6330482B2 (ja) * 2014-05-27 2018-05-30 富士通株式会社 無線装置
US9485129B1 (en) * 2014-07-07 2016-11-01 Altera Corporation Multi-standard peak canceling circuitry
WO2016180905A1 (en) * 2015-05-11 2016-11-17 Andrew Wireless Systems Gmbh Crest factor optimization in a digital repeater system
US10181867B2 (en) * 2015-10-08 2019-01-15 Telefonaktiebolaget Lm Ericsson (Publ) Crest factor reduction in a radio transmitter
US9838137B2 (en) * 2015-12-18 2017-12-05 Fujitsu Limited Device and method for transmitting optical signal in which a plurality of signals are multiplexed
CA3009761C (en) * 2015-12-29 2024-06-11 Blue Danube Systems, Inc. Multi-beam crest factor reduction
EP3456012B1 (en) * 2016-05-13 2020-12-02 Telefonaktiebolaget LM Ericsson (PUBL) Allocation-based distortion function selection
CN111521961B (zh) * 2020-06-09 2022-04-05 中北大学 基于金刚石nv色心的单路三轴磁信息检测方法及系统
US11765011B2 (en) 2021-07-06 2023-09-19 Huawei Technologies Co., Ltd. Method and apparatus for transmitting and receiving data
US20250112812A1 (en) * 2023-09-28 2025-04-03 Apple Inc. Crest factor reduction systems and methods

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JP3003403B2 (ja) 1992-08-26 2000-01-31 トヨタ自動車株式会社 内燃機関の軸受構造
US6259724B1 (en) * 1996-10-18 2001-07-10 Telefonaktiebolaget L M Ericsson (Publ) Random access in a mobile telecommunications system
US6236864B1 (en) * 1998-11-27 2001-05-22 Nortel Networks Limited CDMA transmit peak power reduction
BR9816112A (pt) 1998-12-24 2001-09-04 Nokia Networks Oy Transmissor de portador de múltiplas frequências, estação base, e, método de transmissão de frequência de múltiplos portadores
KR20020096833A (ko) * 2001-06-19 2002-12-31 삼성전자 주식회사 직교주파수 분할 다중 시스템에서 피크대 평균 전력비를최소화하기 위한 장치 및 방법
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GB2401516A (en) 2003-04-17 2004-11-10 Univ Southampton Peak-to-average power ratio reduction by subtracting shaped pulses from a baseband signal
US7292639B1 (en) * 2003-06-05 2007-11-06 Nortel Networks Limited Method and apparatus for peak to average power ratio reduction for orthogonal frequency division multiplex systems
KR100933115B1 (ko) * 2003-09-09 2009-12-21 삼성전자주식회사 직교 주파수 분할 다중 통신 시스템에서 피크 전력 대 평균 전력비의 감소를 위한 장치 및 방법
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US7583583B2 (en) * 2005-12-15 2009-09-01 Nortel Networks Limited System and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing signals using reserved spectrum
US7783260B2 (en) * 2006-04-27 2010-08-24 Crestcom, Inc. Method and apparatus for adaptively controlling signals
JP2007332266A (ja) 2006-06-14 2007-12-27 Dainippon Printing Co Ltd 液晶組成物、これを用いたカラーフィルタ及び液晶表示装置
GB0620158D0 (en) * 2006-10-11 2006-11-22 Nokia Corp Method and apparatus for reducing peak-to-average power ratio of a signal
CN101647217B (zh) * 2007-04-13 2013-02-27 富士通株式会社 峰值抑制电路、发送装置以及峰值抑制方法
BRPI0817599B1 (pt) 2007-10-04 2020-10-20 Apple Inc método e sistema para reduzir de forma adaptável uma razão de potência de pico para potência média em uma estação móvel
JP2009159055A (ja) * 2007-12-25 2009-07-16 Panasonic Corp 送信装置及びピーク抑圧方法

Also Published As

Publication number Publication date
US20120057654A1 (en) 2012-03-08
CN102257732B (zh) 2015-02-25
HK1164561A1 (zh) 2012-09-21
RU2011129270A (ru) 2013-02-10
WO2010070406A3 (en) 2010-10-28
JP2012515456A (ja) 2012-07-05
US20130010894A1 (en) 2013-01-10
US8605818B2 (en) 2013-12-10
EP2380280A2 (en) 2011-10-26
RU2494534C2 (ru) 2013-09-27
EP2380280A4 (en) 2013-09-18
WO2010070406A2 (en) 2010-06-24
KR101459182B1 (ko) 2014-11-07
US8670502B2 (en) 2014-03-11
CN102257732A (zh) 2011-11-23
US8068558B2 (en) 2011-11-29
CA2745072C (en) 2016-10-25
JP5364795B2 (ja) 2013-12-11
CA2745072A1 (en) 2010-06-24
KR20110104499A (ko) 2011-09-22
US20100150256A1 (en) 2010-06-17
US8238473B2 (en) 2012-08-07
US20120275543A1 (en) 2012-11-01

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: ROCKSTAR BIDCO, LP (US)

B25A Requested transfer of rights approved

Owner name: 2256355 ONTARIO LIMITED (CA)

B25A Requested transfer of rights approved

Owner name: RESEARCH IN MOTION LIMITED (CA)

B25D Requested change of name of applicant approved

Owner name: BLACKBERRY LIMITED (CA)

B25G Requested change of headquarter approved

Owner name: BLACKBERRY LIMITED (CA)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]