BR0309501A - Método e equipamento para a redução da relação potência de pico/potência média de um sinal de multi-portadora - Google Patents

Método e equipamento para a redução da relação potência de pico/potência média de um sinal de multi-portadora

Info

Publication number
BR0309501A
BR0309501A BR0309501-0A BR0309501A BR0309501A BR 0309501 A BR0309501 A BR 0309501A BR 0309501 A BR0309501 A BR 0309501A BR 0309501 A BR0309501 A BR 0309501A
Authority
BR
Brazil
Prior art keywords
carrier signal
carriers
peak power
average power
power
Prior art date
Application number
BR0309501-0A
Other languages
English (en)
Other versions
BRPI0309501B1 (pt
Inventor
Juan Montojo
Peter J Black
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0309501A publication Critical patent/BR0309501A/pt
Publication of BRPI0309501B1 publication Critical patent/BRPI0309501B1/pt

Links

Classifications

    • 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
    • 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
    • H04L27/2621—Reduction thereof using phase offsets between subcarriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/10—Secret communication by using two signals transmitted simultaneously or successively
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0019—Time-frequency-code in which one code is applied, as a temporal sequence, to all frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

"MéTODO E EQUIPAMENTO PARA A REDUçãO DA RELAçãO POTêNCIA DE PICO/POTêNCIA MéDIA DE UM SINAL DE MULTI-PORTADORA". Um equipamento e método fornecem a produção de um sinal de multi-portadora a uma relação potência de pico/potência média reduzida. Um sistema de controle (401) determina um número de portadoras, determina o tempo de chip de uma sequencia de espalhamento utilizada para espalhamento do número de portadoras e determina o tempo de retardo para cada um dentre o número de portadoras com base no número determinado de portadoras e no tempo de chip determinado. os blocos de retardo (512b, 512c) retardam o número de portadoras pelo tempo de retardo determinado. Um combinador (502) combina as portadoras retardados para produzir um sinal de multi-portadora de relação potência de pico/potência média reduzida (504) . Um transmissor (500) transmite o sinal de multi-portadora de relação potência de pico/potência média reduzido (504) o transmissor (500) pode incluir um amplificador (520) para amplificar o sinal de multi-portadora de relação potência de pico/potência média reduzida (504) antes da transmissão.
BRPI0309501A 2002-04-26 2003-04-25 método e equipamento para redução de relação potência de pico/potência média de um sinal de multiportadora BRPI0309501B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/132,992 US7266156B2 (en) 2002-04-26 2002-04-26 Method and apparatus for reducing peak to average power ratio of a multi-carrier signal
PCT/US2003/012940 WO2003092235A1 (en) 2002-04-26 2003-04-25 Method and apparatus for reducing peak to average power ratio of a multi-carrier signal

Publications (2)

Publication Number Publication Date
BR0309501A true BR0309501A (pt) 2005-04-05
BRPI0309501B1 BRPI0309501B1 (pt) 2016-12-20

Family

ID=29248889

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0309501A BRPI0309501B1 (pt) 2002-04-26 2003-04-25 método e equipamento para redução de relação potência de pico/potência média de um sinal de multiportadora

Country Status (9)

Country Link
US (1) US7266156B2 (pt)
EP (2) EP2204960B1 (pt)
JP (1) JP4283215B2 (pt)
KR (1) KR100928168B1 (pt)
CN (1) CN1656764B (pt)
AU (1) AU2003235472A1 (pt)
BR (1) BRPI0309501B1 (pt)
TW (1) TWI315618B (pt)
WO (1) WO2003092235A1 (pt)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2442946A1 (en) * 2002-09-30 2004-03-30 Vcom Inc. Method and apparatus for reducing peak to average power ratio in qam multi-channel blocks
US20050111576A1 (en) * 2003-11-24 2005-05-26 Kiomars Anvari Peak-to-average reduction technique for multi-carrier power amplifiers
DE102004029236B4 (de) * 2004-06-17 2006-08-03 Infineon Technologies Ag Verfahren und Vorrichtung zur Reduzierung des dynamischen Bereichs eines Funksignals
US8570007B2 (en) * 2005-09-06 2013-10-29 Analog Devices, Inc. Phase doubling for switching power supply
CN1787413B (zh) * 2005-10-28 2010-08-11 东南大学 低峰均比正交频分复用传输技术方法
CN1972264B (zh) * 2005-11-23 2010-05-05 中兴通讯股份有限公司 一种降低多载波峰均比的方法
CN101998610B (zh) * 2009-08-08 2014-06-11 中兴通讯股份有限公司 降低多载波相互干扰的方法与装置
CN102065529B (zh) * 2009-11-12 2013-08-21 中兴通讯股份有限公司 一种降低多载波峰均比的方法及***
WO2012049912A1 (ja) * 2010-10-14 2012-04-19 三菱電機株式会社 送信装置、受信装置および中継装置
US8848813B2 (en) * 2012-12-10 2014-09-30 Texas Instruments Incorporated OFDM PAR reduction by substituting original in-band subcarriers after clipping
US8687734B1 (en) * 2013-01-03 2014-04-01 Harris Corporation Non-causal orthogonal frequency division multiplexing tapered peak suppression
US9602228B1 (en) 2013-01-18 2017-03-21 Gregory R. Warnes Method and apparatus for transmission and reception of a signal over multiple frequencies with time offset encoding at each frequency
US9967123B1 (en) 2017-02-07 2018-05-08 Texas Instruments Incorporated Peak-to-average power reduction using guard tone filtering
US11082279B2 (en) 2018-09-27 2021-08-03 At&T Intellectual Property I, L.P. Facilitation of reduction of peak to average power ratio for 5G or other next generation network
US10659270B2 (en) 2018-10-10 2020-05-19 At&T Intellectual Property I, L.P. Mapping reference signals in wireless communication systems to avoid repetition
US11418992B2 (en) 2018-11-02 2022-08-16 At&T Intellectual Property I, L.P. Generation of demodulation reference signals in advanced networks
US10659112B1 (en) 2018-11-05 2020-05-19 XCOM Labs, Inc. User equipment assisted multiple-input multiple-output downlink configuration
US10432272B1 (en) 2018-11-05 2019-10-01 XCOM Labs, Inc. Variable multiple-input multiple-output downlink user equipment
US10756860B2 (en) 2018-11-05 2020-08-25 XCOM Labs, Inc. Distributed multiple-input multiple-output downlink configuration
US10812216B2 (en) 2018-11-05 2020-10-20 XCOM Labs, Inc. Cooperative multiple-input multiple-output downlink scheduling
AU2019388921B2 (en) 2018-11-27 2024-05-30 XCOM Labs, Inc. Non-coherent cooperative multiple-input multiple-output communications
US11063645B2 (en) 2018-12-18 2021-07-13 XCOM Labs, Inc. Methods of wirelessly communicating with a group of devices
US10756795B2 (en) 2018-12-18 2020-08-25 XCOM Labs, Inc. User equipment with cellular link and peer-to-peer link
US11330649B2 (en) 2019-01-25 2022-05-10 XCOM Labs, Inc. Methods and systems of multi-link peer-to-peer communications
US10756767B1 (en) 2019-02-05 2020-08-25 XCOM Labs, Inc. User equipment for wirelessly communicating cellular signal with another user equipment
US10686502B1 (en) 2019-04-29 2020-06-16 XCOM Labs, Inc. Downlink user equipment selection
US10735057B1 (en) 2019-04-29 2020-08-04 XCOM Labs, Inc. Uplink user equipment selection
US11032112B2 (en) * 2019-10-18 2021-06-08 Motorola Solutions, Inc. Multi-carrier crest factor reduction
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5045799A (en) * 1989-09-28 1991-09-03 Rockwell International Corporation Peak to average power ratio reduction in a power amplifier with multiple carrier input
US5838732A (en) * 1994-10-31 1998-11-17 Airnet Communications Corp. Reducing peak-to-average variance of a composite transmitted signal generated by a digital combiner via carrier phase offset
GB2309363B (en) * 1996-01-17 2000-07-12 Motorola Ltd Multicarrier communication system and method for peak power control
JP2800891B2 (ja) * 1996-12-17 1998-09-21 日本電気株式会社 Ｃｄｍａ方式のマルチコード送信装置
US6044103A (en) 1997-06-17 2000-03-28 Qualcomm Inc. Reduced peak-to-average amplitude dual channel link
KR100233836B1 (ko) * 1997-08-21 1999-12-01 정선종 다중 반송파 직접 시퀀스 확산 스펙트럼 시스템의 변조 장치
US6249539B1 (en) * 1998-06-15 2001-06-19 Qualcomm Incorporated System and method for narrowing the range of frequency uncertainty of a doppler shifted signal
US6310869B1 (en) 1998-08-31 2001-10-30 Qualcomm Incorporated Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols
US6330289B1 (en) * 1998-10-16 2001-12-11 Nortel Networks Limited System for improving base station amplifier performance
US6236864B1 (en) 1998-11-27 2001-05-22 Nortel Networks Limited CDMA transmit peak power reduction
JP3329322B2 (ja) * 1999-12-07 2002-09-30 株式会社ワイ・アール・ピー移動通信基盤技術研究所 マルチキャリア伝送装置
JP4197217B2 (ja) 2000-05-08 2008-12-17 株式会社半導体エネルギー研究所 装置
KR20010069611A (ko) * 2001-04-20 2001-07-25 유흥균 다중 반송파 통신 시스템에서 지연회로를 이용한 피크대평균 전력비(papr) 저감 방법

Also Published As

Publication number Publication date
US20030202611A1 (en) 2003-10-30
CN1656764A (zh) 2005-08-17
AU2003235472A1 (en) 2003-11-10
TW200400705A (en) 2004-01-01
WO2003092235A1 (en) 2003-11-06
JP2005524283A (ja) 2005-08-11
EP1504579A1 (en) 2005-02-09
KR100928168B1 (ko) 2009-11-25
KR20040104637A (ko) 2004-12-10
TWI315618B (en) 2009-10-01
JP4283215B2 (ja) 2009-06-24
CN1656764B (zh) 2011-01-19
BRPI0309501B1 (pt) 2016-12-20
EP1504579B1 (en) 2016-08-24
EP2204960B1 (en) 2016-09-14
EP2204960A1 (en) 2010-07-07
US7266156B2 (en) 2007-09-04

Similar Documents

Publication Publication Date Title
BR0309501A (pt) Método e equipamento para a redução da relação potência de pico/potência média de um sinal de multi-portadora
BR0307763A (pt) sistema e método para retorno de qualidade de canal
TW200729767A (en) Reverse link power control for an OFDMA system
BR9908269A (pt) Método e aparelho para proporcionar um ajuste de tempo para um sistema de comunicação sem fio
BRPI0414898A (pt) método e equipamento para controlar a taxa de dados de link reverso de uma estação móvel
BR9505642A (pt) Sistema e processo para aperfeiçoar a qualidade de sinais transmitidos e processo para proporcionar uma incicação de qualidade de enlace de comunicação
GB2419096A (en) Bone plates with intraoperatively tapped apertures
BR0306803A (pt) Método para manter uma conexão de modalidade inativa entre uma unidade de campo e uma estação transmissora-receptora de base
BRPI0406645A (pt) Método para prover handoff de link direto em um sistema de comunicação sem fio com link direto ofdm e link reverso cdma
BR0006905A (pt) Aparelho e método para designar um canal comuminverso para comunicação dedicada num sistemamóvel de comunicação
GB2445134A (en) Method and apparatus for synchronizing a node within an ad-hoc communication system
AR020799A1 (es) Receptor cdma que comparte un dispositivo de rastreo entre multiples derivaciones de inclinacion
MX9301511A (es) Metodo y aparato para estimar los parametros de peso de la señal en un receptor de diversidades
BR9912642A (pt) Método e aparelho para comunicar sinais de vários tipos de canal em sistemas de comunicação cdma
EA200001129A3 (ru) Способ получения 4-карбоксиамино-2-замещенного-1,2,3,4-тетрагидрохинолина
BRPI0412095A (pt) método e sistema de rádio pacote móvel para tarifar uma conexão streaming
NO832638L (no) Kommunikasjons-system.
BR0316983A (pt) Método e equipamento para controle adaptativo de armazenamento de dados em transmissor de dados
BR9906073A (pt) Método e dispositivo para calibrar um conjunto de antenas, dispositivo de comunicação e estação base de telecomunicação móvel
BR0107345A (pt) Aparelho e método para transmitir dados de multimìdia em sistema de comunicação móvel
BR0208395A (pt) Estação móvel, estação base, sistema de comunicação e método de comunicação
BR9917496A (pt) Método, sistema e aparelho para reduzir tempo de sincronização e resincronização para sistemas com enchimento de pulso
NO20013839D0 (no) Fremgangsmate og apparat for tidsforskjovet signalfolging ("time tracking")
AU2003281825A1 (en) Multi-carrier transmitting apparatus and multi-carrier transmitting method
PT805169E (pt) Processo para o fabrico de copolimeros soluveis em meio alcalino a base de (met)acrilatos

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 20/12/2016, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 17A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: REFERENTE AO DESPACHO 21.6 PUBLICADO NA RPI 2563 DE 2020-02-18