BR9813861A - Métodos e equipamentos para medir efeitos não lineares em um sistema de comunicação e para selecionar canais com base nos resultados - Google Patents

Métodos e equipamentos para medir efeitos não lineares em um sistema de comunicação e para selecionar canais com base nos resultados

Info

Publication number
BR9813861A
BR9813861A BR9813861-8A BR9813861A BR9813861A BR 9813861 A BR9813861 A BR 9813861A BR 9813861 A BR9813861 A BR 9813861A BR 9813861 A BR9813861 A BR 9813861A
Authority
BR
Brazil
Prior art keywords
systems
signals
power
wpr
results
Prior art date
Application number
BR9813861-8A
Other languages
English (en)
Inventor
Amnon Silberger
Brian Butler
Leonard Schiff
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 BR9813861A publication Critical patent/BR9813861A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
    • H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Patente de Invenção: MéTODOS E EQUIPAMENTOS PARA MEDIR EFEITOS NãO LINEARES EM UM SISTEMA DE COMUNICAçãO E PARA SELECIONAR CANAIS COM BASE NOS RESULTADOS. São descritos métodos e equipamentos para determinar acuradamente as características de operação ou impacto de efeitos não lineares sobre dispositivos ou sistemas de comunicação que transferem sinais de comunicação de espectro espalhado ortogonalmente codificados. Uma Razão de Potência Walsh (WPR - Walsh Power Ratio) é usada para determinar com maior precisão a resposta do sistema. Tal informação pode ser usada por loops ou circuitos de controle de potência para controlar ou ajustar a operação de elementos ou estágios não lineares tais como amplificadores de alta potência em sistemas de comunicação CDMA ortogonais para prover uma melhor resposta do sistema. As informações podem também ser empregadas para atribuir ou designar canais para usuários do sistema e para proceder a mudanças físicas nos equipamentos (hardware) do sistema. As medições usadas para formular a WPR podem ser efetuadas para componentes individuais ou sistemas inteiros pela introdução ou injeção de sinais de comunicação em múltiplos canais contendo dados e deixando pelo menos um canal vazio. A potência recebida por canal no lado de saída ou emissão do sistema ou dispositivo é então medida. é a seguir formada uma razão de densidade de potência do canal vazio para os canais ativos. A determinação da WPR para um sistema ou componentes pode ser efetuada durante períodos de operação através da transferência periódica de sinais de teste em momentos definidos ou por intercalação entre sinais de tráfego existentes no sistema.
BR9813861-8A 1997-10-14 1998-10-14 Métodos e equipamentos para medir efeitos não lineares em um sistema de comunicação e para selecionar canais com base nos resultados BR9813861A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US6194397P 1997-10-14 1997-10-14
US09/172,742 US6028884A (en) 1997-10-14 1998-10-14 Method and apparatus for measuring nonlinear effects in a communication system
PCT/US1998/021778 WO1999020001A1 (en) 1997-10-14 1998-10-14 Methods and apparatus for measuring nonlinear effects in a communication system and for selecting channels on the basis of the results

Publications (1)

Publication Number Publication Date
BR9813861A true BR9813861A (pt) 2000-09-26

Family

ID=26741682

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9813861-8A BR9813861A (pt) 1997-10-14 1998-10-14 Métodos e equipamentos para medir efeitos não lineares em um sistema de comunicação e para selecionar canais com base nos resultados

Country Status (11)

Country Link
US (1) US6028884A (pt)
EP (1) EP1023786B1 (pt)
JP (1) JP4050460B2 (pt)
KR (1) KR100567172B1 (pt)
CN (1) CN1124712C (pt)
AT (1) ATE218777T1 (pt)
AU (1) AU742826B2 (pt)
BR (1) BR9813861A (pt)
CA (1) CA2306375C (pt)
DE (1) DE69805832T2 (pt)
WO (1) WO1999020001A1 (pt)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6314107B1 (en) * 1998-10-20 2001-11-06 Qualcomm Incorporated Method and apparatus for assigning spreading codes
US6337980B1 (en) 1999-03-18 2002-01-08 Hughes Electronics Corporation Multiple satellite mobile communications method and apparatus for hand-held terminals
US7215954B1 (en) * 1999-03-18 2007-05-08 The Directv Group, Inc. Resource allocation method for multi-platform communication system
US6920309B1 (en) 1999-03-18 2005-07-19 The Directv Group, Inc. User positioning technique for multi-platform communication system
US6496536B2 (en) * 1999-03-25 2002-12-17 Qualcomm, Incorporated System and method for estimating power
US7366470B1 (en) * 1999-06-24 2008-04-29 Intel Corporation Inter-modulation distortion compensation
DE10084963T1 (de) * 1999-09-07 2002-11-07 Ericsson Inc Schnurlose Kommunikationsvorrichtung und Verfahren unter Verwendung einer intelligenten Modulationscodezuordnung
KR20020095202A (ko) * 2000-03-30 2002-12-20 코우액스미디어, 인크. 패시브형 멀티포인트 네트워크를 통한 모뎀 통신을 위한자동 분배 이득 제어 아키텍쳐 및 방법
US7027769B1 (en) 2000-03-31 2006-04-11 The Directv Group, Inc. GEO stationary communications system with minimal delay
US6963548B1 (en) 2000-04-17 2005-11-08 The Directv Group, Inc. Coherent synchronization of code division multiple access signals
FI20001160A (fi) * 2000-05-15 2001-11-16 Nokia Networks Oy Pilottisignaalin toteuttamismenetelmä
US6388615B1 (en) * 2000-06-06 2002-05-14 Hughes Electronics Corporation Micro cell architecture for mobile user tracking communication system
US6662018B1 (en) * 2000-06-28 2003-12-09 Northrop Grumman Corporation Analog power control system for a multi-carrier transmitter
US6535720B1 (en) * 2000-06-28 2003-03-18 Trw Inc. Digital power control system for a multi-carrier transmitter
US6829479B1 (en) 2000-07-14 2004-12-07 The Directv Group. Inc. Fixed wireless back haul for mobile communications using stratospheric platforms
US6763242B1 (en) 2000-09-14 2004-07-13 The Directv Group, Inc. Resource assignment system and method for determining the same
DE10056258B4 (de) * 2000-11-14 2004-02-26 Rohde & Schwarz Gmbh & Co. Kg Verfahren zur Bestimmung und zur Anzeige der Leistungsanteile der Codes eines CDMA-Signals
WO2002043287A1 (en) * 2000-11-24 2002-05-30 Nokia Corporation Component measures
US6891813B2 (en) * 2000-12-12 2005-05-10 The Directv Group, Inc. Dynamic cell CDMA code assignment system and method
FR2820596B1 (fr) * 2001-02-08 2003-06-20 Sagem Perfectionnement aux outils de test pour reseaux de radio-telephonie cellulaires a multiplexage par code de repartition
US6941152B2 (en) * 2001-04-24 2005-09-06 Ipr Licensing, Inc. Wireless subscriber network registration system for configurable services
US7483505B2 (en) * 2001-04-27 2009-01-27 The Directv Group, Inc. Unblind equalizer architecture for digital communication systems
US7349421B2 (en) 2001-08-06 2008-03-25 Qualcomm Incorporated Method and apparatus for assigning spreading codes
US6842624B2 (en) 2001-08-29 2005-01-11 Qualcomm, Incorporated Systems and techniques for power control
US20030069022A1 (en) * 2001-10-04 2003-04-10 Mark Kintis Amplitude cancellation topology for multichannel applications
US7003269B2 (en) * 2002-02-20 2006-02-21 Qualcomm Incorporated Method and apparatus for a dedicated physical channel in a wireless communication system
US9125061B2 (en) * 2002-06-07 2015-09-01 Apple Inc. Systems and methods for channel allocation for forward-link multi-user systems
EP1404029B1 (en) * 2002-09-24 2007-12-12 Agilent Technologies, Inc. Method and apparatus for predicting a signalling code corresponding to a code spur
AU2004218611B2 (en) * 2003-10-10 2007-03-08 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
US20060056344A1 (en) * 2004-09-10 2006-03-16 Interdigital Technology Corporation Seamless channel change in a wireless local area network
US7652532B2 (en) * 2005-09-06 2010-01-26 The Regents Of The University Of California Correlation method for monitoring power amplifier
US20070097962A1 (en) * 2005-11-03 2007-05-03 Lg Electronics Inc. Method and apparatus for determining the maximum transmit power of a mobile terminal
KR100962113B1 (ko) 2007-04-23 2010-06-10 삼성전자주식회사 이동통신 단말기에서 전력 증폭기를 고려한 상향링크스케줄링 방법 및 장치
KR101401965B1 (ko) * 2007-05-25 2014-06-02 삼성전자주식회사 복수개의 채널들의 상태 측정 방법 및 그 장치, 유휴 채널선택 방법 및 그 장치
JP4806665B2 (ja) * 2007-06-19 2011-11-02 株式会社エヌ・ティ・ティ・ドコモ 基地局装置、送信方法、及び通信システム
US9020048B2 (en) * 2008-04-30 2015-04-28 Zeevee, Inc. Dynamically modifying video and coding behavior
CN102082752B (zh) * 2010-02-25 2014-03-19 电信科学技术研究院 一种数字预失真处理方法及设备
US9252895B1 (en) * 2014-07-25 2016-02-02 Keysight Technologies, Inc. System and method of measuring full spectrum of modulated output signal from device under test
CN115811358A (zh) 2021-09-15 2023-03-17 富士通株式会社 非线性信噪比的测量装置、方法和测试仪表

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5722063A (en) * 1994-12-16 1998-02-24 Qualcomm Incorporated Method and apparatus for increasing receiver immunity to interference
US5691974A (en) * 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
US5805584A (en) * 1996-02-23 1998-09-08 L-3 Communications Corporation Multi-user acquisition procedure for point-to-multipoint synchronous CDMA systems
US5924015A (en) * 1996-04-30 1999-07-13 Trw Inc Power control method and apparatus for satellite based telecommunications system
US5731993A (en) * 1996-09-09 1998-03-24 Hughes Electronics Nonlinear amplifier operating point determination system and method

Also Published As

Publication number Publication date
AU1189199A (en) 1999-05-03
DE69805832D1 (de) 2002-07-11
EP1023786A1 (en) 2000-08-02
ATE218777T1 (de) 2002-06-15
US6028884A (en) 2000-02-22
CN1124712C (zh) 2003-10-15
JP4050460B2 (ja) 2008-02-20
CN1276114A (zh) 2000-12-06
WO1999020001A1 (en) 1999-04-22
EP1023786B1 (en) 2002-06-05
AU742826B2 (en) 2002-01-10
JP2001520477A (ja) 2001-10-30
KR20010024484A (ko) 2001-03-26
CA2306375C (en) 2008-12-09
DE69805832T2 (de) 2003-01-23
KR100567172B1 (ko) 2006-04-03
CA2306375A1 (en) 1999-04-22

Similar Documents

Publication Publication Date Title
BR9813861A (pt) Métodos e equipamentos para medir efeitos não lineares em um sistema de comunicação e para selecionar canais com base nos resultados
ATE178444T1 (de) Verfahren und gerät zur anzeige der qualität eines übertragungswegs
BR0014344A (pt) Aparelho e método para transmitir dados de controle por um canal num sistema de comunicação cdma
DE69522918T2 (de) Verfahren und vorrichtung zur simulation der von teilnehmern empfangenen interferenz in einem spreizspektrum-kommunikationssystem
BR9914245A (pt) Métodos e equipamentos para controle rápido de potência de sinais transmitidos em um canal de múltiplo acesso
BR0006905A (pt) Aparelho e método para designar um canal comuminverso para comunicação dedicada num sistemamóvel de comunicação
JP2004502329A5 (pt)
NO963016L (no) Testutstyr for et basestasjonsnett
BR9906073A (pt) Método e dispositivo para calibrar um conjunto de antenas, dispositivo de comunicação e estação base de telecomunicação móvel
WO1996023376A3 (en) Apparatus and method for generating pseudorandom quantities based upon radio channel characteristics
BR0312080A (pt) sistema de acesso múltiplo por divisão de código ortogonal
AU740806B2 (en) Method for transmitting power control signal in mobile communication system
DE69838557D1 (de) Gerät und Verfahren zur Teilung eines Zugriffskanalintervalls
ATE360342T1 (de) Verschlüsseln einer pseudozufallssequenz vor dem spreizen eines kommunikationssignals
NO20013839L (no) Fremgangsmåte og apparat for tidsforskjövet signalfölging ("time tracking")
BR9806284A (pt) Processo e aparelho para estimar uma medição estatìstica da perda de caminho em um sistema de radio comunicações e processo para alocar canais para uma estação de radio primária
WO2003036432A3 (en) System, method, apparatus and means for evaluating historical network activity
CA2019306A1 (fr) Procede et dispositif d'evaluation quantifie du debit de circuits virtuels empruntant une voie de transmission a multiplexage temporel asynchrone
BR0013603A (pt) Método e aparelho de controle de potência de transmissão
WO2003098397A3 (en) Method and apparatus for determining layer thickness and composition using ellipsometric evaluation
NO20005553D0 (no) FremgangsmÕte for mÕling av signaltid, samt radiosystem
US7158812B2 (en) Apparatus and method for measuring output power of pilot channel at CDMA base station
JP4195002B2 (ja) コードチャネルの出力を表示するための信号解析装置および方法
DE59304985D1 (de) Kalibrieren von münzprüfern
Wang Chaotic laser brings out higher precision OTDR

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time
B15K Others concerning applications: alteration of classification

Ipc: H04B 17/00 (2015.01), H04B 17/309 (2015.0