FI20080081A - Menetelmä ja laite digitaalisen tietoliikennekanavan testaamiseksi - Google Patents

Menetelmä ja laite digitaalisen tietoliikennekanavan testaamiseksi Download PDF

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Publication number
FI20080081A
FI20080081A FI20080081A FI20080081A FI20080081A FI 20080081 A FI20080081 A FI 20080081A FI 20080081 A FI20080081 A FI 20080081A FI 20080081 A FI20080081 A FI 20080081A FI 20080081 A FI20080081 A FI 20080081A
Authority
FI
Finland
Prior art keywords
testing
digital telecommunications
telecommunications channel
channel
digital
Prior art date
Application number
FI20080081A
Other languages
English (en)
Swedish (sv)
Other versions
FI120377B (fi
Inventor
Jr Edward G Tiedemann
Jr Lindsay A Weaver
Yu-Cheun Jou
Gwain Bayley
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 FI20080081A publication Critical patent/FI20080081A/fi
Application granted granted Critical
Publication of FI120377B publication Critical patent/FI120377B/fi

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • H04L1/241Testing correct operation using pseudo-errors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/24Testing correct operation
    • H04L1/242Testing correct operation by comparing a transmitted test signal with a locally generated replica
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/0014Carrier regulation
    • H04L2027/0024Carrier regulation at the receiver end
    • H04L2027/0026Correction of carrier offset
    • H04L2027/0034Correction of carrier offset using hypothesis testing
FI20080081A 1994-11-30 2008-02-04 Laite digitaalisen tietoliikennekanavan testaamiseksi FI120377B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/347,526 US5802105A (en) 1994-11-30 1994-11-30 Method and apparatus for testing a digital communication channel
US34752694 1994-11-30
PCT/US1995/015534 WO1996017454A1 (en) 1994-11-30 1995-11-29 Method and apparatus for testing a digital communication channel at variable or fixed data rates
US9515534 1995-11-29

Publications (2)

Publication Number Publication Date
FI20080081A true FI20080081A (fi) 2008-02-04
FI120377B FI120377B (fi) 2009-09-30

Family

ID=23364083

Family Applications (2)

Application Number Title Priority Date Filing Date
FI972208A FI118913B (fi) 1994-11-30 1997-05-23 Menetelmä ja laite digitaalisen tietoliikennekanavan testaamiseksi
FI20080081A FI120377B (fi) 1994-11-30 2008-02-04 Laite digitaalisen tietoliikennekanavan testaamiseksi

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FI972208A FI118913B (fi) 1994-11-30 1997-05-23 Menetelmä ja laite digitaalisen tietoliikennekanavan testaamiseksi

Country Status (19)

Country Link
US (1) US5802105A (fi)
EP (2) EP0806101B1 (fi)
JP (1) JP3388752B2 (fi)
KR (1) KR100396363B1 (fi)
CN (1) CN1160895C (fi)
AR (1) AR000234A1 (fi)
AT (1) ATE355668T1 (fi)
AU (1) AU706824B2 (fi)
BR (1) BR9510001A (fi)
CA (1) CA2206251C (fi)
DE (1) DE69535410T2 (fi)
ES (1) ES2282996T3 (fi)
FI (2) FI118913B (fi)
HK (1) HK1005282A1 (fi)
IL (1) IL116183A (fi)
RU (1) RU2142197C1 (fi)
TW (1) TW285795B (fi)
WO (1) WO1996017454A1 (fi)
ZA (1) ZA9510109B (fi)

Families Citing this family (101)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5574747A (en) * 1995-01-04 1996-11-12 Interdigital Technology Corporation Spread spectrum adaptive power control system and method
FI100569B (fi) * 1995-05-08 1997-12-31 Nokia Telecommunications Oy Menetelmä ja laitteisto muuttuvan siirtonopeuden koodausta ja ilmaisua varten monikäyttömatkaviestinjärjestelmässä
DE19534156C1 (de) * 1995-09-14 1996-10-17 Siemens Ag Verfahren zur Übertragung von Datenpaketen von Mobilstationen zu Basisstationen in im Zeitlagenmultiplexverfahren betriebenen Mobilfunksystemen
US6041345A (en) * 1996-03-08 2000-03-21 Microsoft Corporation Active stream format for holding multiple media streams
SE9601606D0 (sv) * 1996-04-26 1996-04-26 Ericsson Telefon Ab L M Sätt vid radiotelekommunikationssystem
US5844885A (en) * 1996-06-11 1998-12-01 Qualcomm Incorporated Method and apparatus of providing bit count integrity and synchronous data transfer over a channel which does not preserve synchronization
JPH1028088A (ja) * 1996-07-11 1998-01-27 Nec Corp 携帯電話無線基地局の試験用送受信装置
US5917837A (en) * 1996-09-11 1999-06-29 Qualcomm, Incorporated Method and apparatus for performing decoding of codes with the use of side information associated with the encoded data
US5872814A (en) * 1997-02-24 1999-02-16 At&T Wireless Services Inc. Method for linearization of RF transmission electronics using baseband pre-distortion in T/R compensation pilot signals
US6272119B1 (en) * 1997-03-26 2001-08-07 Yrp Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. Method of CDMA radio wave communication with transmission quality detection and controlling and a CDMA base and mobile stations with quality detection and controlling
FR2769777B1 (fr) * 1997-10-13 1999-12-24 Telediffusion Fse Procede et systeme d'evaluation, a la reception, de la qualite d'un signal numerique, tel qu'un signal audio/video numerique
US6603966B1 (en) * 1997-12-23 2003-08-05 At&T Wireless Services, Inc. Method and system for optimizing performance of a mobile communication system
US6122505A (en) * 1997-12-23 2000-09-19 Telefonaktiebolaget Lm Ericsson Communication system with base stations having test capabilities
KR100266538B1 (ko) * 1997-12-31 2000-09-15 서평원 복수개의 네트웍 상태 관리방법
US6188892B1 (en) * 1998-02-13 2001-02-13 Qualcomm Inc. System and method for base station initiated call setup
JP3981899B2 (ja) * 1998-02-26 2007-09-26 ソニー株式会社 送信方法、送信装置及び受信装置
WO1999048227A1 (en) 1998-03-14 1999-09-23 Samsung Electronics Co., Ltd. Device and method for exchanging frame messages of different lengths in cdma communication system
US6980543B1 (en) * 1998-06-19 2005-12-27 Juniper Networks, Inc. Interconnect network for operation within a communication node
CN1214689C (zh) 1998-06-19 2005-08-10 杜松网络公司 用于把数据导向目的地址的设备和方法
KR100270376B1 (ko) 1998-08-19 2000-11-01 윤종용 무선데이터 서비스장치의 기능시험을 위한 회선 호 발생기 및기능시험 방법
CA2345676A1 (en) 1998-09-30 2000-04-06 Siemens Aktiengesellschaft Method for testing subscriber access lines
US6381455B1 (en) * 1998-10-15 2002-04-30 Lucent Technologies Inc. System and method for warning of and providing greater immunity from an impeding call drop in a digital wireless system
FI112835B (fi) 1999-05-07 2004-01-15 Nokia Corp Menetelmä ja järjestelmä testausalgoritmin toimivuuden testaamiseksi tiedonsiirtolaitteessa
GB2350018B (en) * 1999-05-08 2003-07-30 Motorola Ltd A method of and apparatus for estimating a characteristic of a signal
US6633601B1 (en) * 1999-05-28 2003-10-14 Koninklijke Philips Electronics N.V. Method and device for frame rate determination using correlation metrics and frame quality indicators
EP1067730A1 (en) * 1999-07-02 2001-01-10 Alcatel Determining the transmission quality of a radio channel
US6760391B1 (en) * 1999-09-14 2004-07-06 Nortel Networks Limited Method and apparatus for line rate control in a digital communications system
US6704299B1 (en) 1999-11-30 2004-03-09 Nortel Networks Limited Efficient frame quality indicator for a wireless signal decoder
US6629290B1 (en) * 1999-12-29 2003-09-30 Advanced Micro Devices, Inc. Method and apparatus for automatic transmit verification
US7280803B2 (en) * 1999-12-29 2007-10-09 Cingular Wireless Ii, Llc Monitoring network performance using individual cell phone location and performance information
AU2007229333B2 (en) * 2000-01-10 2010-10-28 Qualcomm Incorporated Method and apparatus for testing wireless communication channels
AU2005203259B2 (en) * 2000-01-10 2007-11-29 Qualcomm Incorporated Method and apparatus for testing wireless communication channels
US6542538B2 (en) 2000-01-10 2003-04-01 Qualcomm Incorporated Method and apparatus for testing wireless communication channels
WO2001051940A1 (en) * 2000-01-14 2001-07-19 Parthus Technologies Plc An algorithmic test pattern generator, with built-in-self-test (bist) capabilities, for functional testing of a circuit
WO2001061899A1 (en) * 2000-02-18 2001-08-23 Nokia Networks Oy Communications system
US6654922B1 (en) * 2000-04-10 2003-11-25 Nokia Corporation Method and apparatus for declaring correctness of reception of channels for use in a mobile telecommunications system
US7245594B1 (en) 2000-05-12 2007-07-17 Qualcomm Incorporated Method and apparatus for fast closed-loop rate adaptation in a high rate packet data transmission
GB2368504B (en) * 2000-07-13 2002-10-09 Advantest Corp Bit error measurement apparatus and method, and recording medium
US6782503B1 (en) 2000-11-28 2004-08-24 Nortel Networks Limited Generating a signature to add to a test packet to achieve a target check value
US6775804B1 (en) 2000-11-28 2004-08-10 Nortel Networks Limited Determining integrity of a packet
US6625764B1 (en) * 2000-11-28 2003-09-23 Nortel Networks Limited Testing using test packets containing random data
JP2002245962A (ja) * 2000-12-12 2002-08-30 Jeol Ltd エレクトロスプレー・イオン源
US6693920B2 (en) * 2000-12-14 2004-02-17 Qualcomm, Incorporated Method and an apparatus for a waveform quality measurement
US7139306B2 (en) * 2001-03-14 2006-11-21 Mercury Computer Systems, Inc. Wireless communication systems and methods for long-code communications for regenerative multiple user detection involving pre-maximal combination matched filter outputs
EP1289184B1 (en) * 2001-08-15 2009-04-15 Psytechnics Limited Communication channel accuracy measurement
DE60138462D1 (de) * 2001-09-11 2009-06-04 Psytechnics Ltd Verfahren und System zur Messung der Genauigkeit eines Übertragungskanals
EP1313253A1 (en) * 2001-11-15 2003-05-21 Evolium S.A.S. Method for detecting errors in a real-time data entity comprising at least two bit portions having different relevance and corresponding receiver
GB2382502B (en) * 2001-11-23 2005-10-19 Actix Ltd Network testing systems
US20030185289A1 (en) * 2001-12-07 2003-10-02 Koninklijke Philips Electronics N.V. Cordless modem for portable computers
US8089888B2 (en) 2001-12-10 2012-01-03 Qualcomm Incorporated Method and apparatus for testing traffic and auxiliary channels in a wireless data communication system
US20050120208A1 (en) * 2002-01-25 2005-06-02 Albert Dobson Robert W. Data transmission systems
GB2404314B (en) * 2002-01-25 2005-07-13 Actix Ltd Data transmission systems
EP1359697A1 (en) * 2002-04-30 2003-11-05 Psytechnics Ltd Method and apparatus for transmission error characterisation
EP1359698B1 (en) * 2002-04-30 2005-01-12 Psytechnics Ltd Method and apparatus for transmission error characterisation
CN100392605C (zh) * 2002-12-03 2008-06-04 Adc长途电讯有限公司 测量通信链路中的差错率
US6920591B2 (en) * 2002-12-03 2005-07-19 Adc Telecommunications, Inc. Measuring an error rate in a communication link
WO2004073245A1 (de) * 2003-02-14 2004-08-26 Siemens Aktiengesellschaft Verfahren zur datenübertragung
US7123590B2 (en) * 2003-03-18 2006-10-17 Qualcomm Incorporated Method and apparatus for testing a wireless link using configurable channels and rates
JP3922571B2 (ja) * 2003-03-26 2007-05-30 ソニー株式会社 情報処理装置および情報処理方法、記録媒体、並びに、プログラム
US7397848B2 (en) * 2003-04-09 2008-07-08 Rambus Inc. Partial response receiver
US7126378B2 (en) 2003-12-17 2006-10-24 Rambus, Inc. High speed signaling system with adaptive transmit pre-emphasis
US7092472B2 (en) * 2003-09-16 2006-08-15 Rambus Inc. Data-level clock recovery
US7586872B2 (en) * 2003-04-11 2009-09-08 Alcatel-Lucent Usa Inc. User assignment strategies for hierarchical and other overlay networks
US7336683B1 (en) * 2003-06-17 2008-02-26 Conexant Systems, Inc. Efficient communication system for reliable frame transmission over broad SNR ranges
US20050044119A1 (en) * 2003-08-21 2005-02-24 Langin-Hooper Jerry Joe Pseudo-random number generator
US20050063539A1 (en) * 2003-09-18 2005-03-24 Langin-Hooper Jerry Joe Prime-number-based method and apparatus for generating random numbers
US7127214B2 (en) 2003-09-23 2006-10-24 Interdigital Technology Corporation User perception of wireless improvement technology
US7233164B2 (en) * 2003-12-17 2007-06-19 Rambus Inc. Offset cancellation in a multi-level signaling system
CN100345417C (zh) * 2004-02-21 2007-10-24 华为技术有限公司 一种测试voip语音算法逻辑芯片的系统及方法
WO2005089331A2 (en) * 2004-03-15 2005-09-29 Wionics Research Generalized puncturing in a communication system
US7085561B1 (en) * 2004-05-03 2006-08-01 Itt Manufacturing Enterprises, Inc. Embedded channel analysis for RF data modem
US7426666B2 (en) * 2004-05-18 2008-09-16 Lucent Technologies Inc. Noisy channel emulator for high speed data
US7548153B2 (en) * 2004-07-09 2009-06-16 Tc License Ltd. Multi-protocol or multi-command RFID system
US7616711B2 (en) 2004-07-20 2009-11-10 Qualcomm Incorporated Frequency domain filtering to improve channel estimation in multicarrier systems
US7768930B1 (en) * 2004-09-17 2010-08-03 Avaya Inc Method and apparatus for determining problems on digital systems using audible feedback
US20060126706A1 (en) * 2004-12-10 2006-06-15 Kevin Brand Auto-reboot modem
US7830862B2 (en) * 2005-01-07 2010-11-09 At&T Intellectual Property Ii, L.P. System and method for modifying speech playout to compensate for transmission delay jitter in a voice over internet protocol (VoIP) network
CN100428698C (zh) * 2005-01-18 2008-10-22 华为技术有限公司 测试hsdpa信道的传输性能的方法
DE102005006890B4 (de) * 2005-02-15 2007-04-26 Siemens Ag Verfahren zur Bestimmung einer optimalen Datenübertragungsrate über ein Übertragungsmedium
US7707031B2 (en) 2005-03-01 2010-04-27 Telefonaktiebolaget Lm Ericsson (Publ) Large scale measurement of subjective quality in mobile communications systems
US8351342B2 (en) * 2005-06-23 2013-01-08 Qualcomm Incorporated System determination emulator for analysis and testing
US20070165847A1 (en) * 2006-01-18 2007-07-19 Langin-Hooper Jerry J Defined-distribution pseudo-random number generator
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US7747734B2 (en) * 2006-03-29 2010-06-29 International Business Machines Corporation Apparatus, system, and method for error assessment over a communication link
KR20080003537A (ko) * 2006-07-03 2008-01-08 엘지전자 주식회사 이동 단말기의 통화 중 노이즈 제거 방법 및 이를 위한이동 단말기
US9191226B2 (en) * 2006-09-28 2015-11-17 Qualcomm Incorporated Methods and apparatus for determining communication link quality
US7761764B2 (en) * 2007-01-12 2010-07-20 Samsung Electronics Co., Ltd. System and method for self-test of integrated circuits
US20080239082A1 (en) * 2007-03-29 2008-10-02 Analogix Semiconductor, Inc. HDMI format video pattern and audio frequencies generator for field test and built-in self test
US8683095B1 (en) * 2010-06-02 2014-03-25 Marvell International Ltd Packet identification tracker
US8213577B2 (en) * 2010-08-31 2012-07-03 Fluke Corporation Phone test set modem
SG191749A1 (en) * 2011-01-14 2013-08-30 Ericsson Telefon Ab L M Crosstalk limitation between modems
TW201316703A (zh) * 2011-10-03 2013-04-16 Polarlink Technologies Ltd 遠端遙控光纖檢測方法
CN102629880A (zh) * 2012-03-27 2012-08-08 上海市电力公司 中压载波通信系统的测试方法
US9396367B2 (en) 2013-02-05 2016-07-19 Amtech Systems, LLC System and method for synchronizing RFID readers utilizing RF or modulation signals
US8780966B1 (en) * 2013-03-15 2014-07-15 Litepoint Corporation System and method for testing a data packet signal transceiver
US10121289B1 (en) 2014-04-11 2018-11-06 Amtech Systems, LLC Vehicle-based electronic toll system with interface to vehicle display
TWI589892B (zh) * 2015-04-22 2017-07-01 威盛電子股份有限公司 傳輸介面晶片以及內建式傳輸介面晶片測試方法
CN111010241B (zh) * 2019-12-03 2021-12-14 杭州电子科技大学富阳电子信息研究院有限公司 一种基于fpga的多协议高速伪随机信号回环测试系统
RU2719318C1 (ru) * 2020-01-28 2020-04-17 Ооо "Новел Ил" Способ передачи информации по волоконно-оптическим линиям связи c распределенными узлами доступа
RU2749877C1 (ru) * 2020-06-01 2021-06-18 Федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский государственный университет аэрокосмического приборостроения" Способ формирования структурно-скрытных, помехозащищенных радиосигналов однополосной модуляции с использованием кодов Баркера
RU2739069C1 (ru) * 2020-06-16 2020-12-21 Общество с ограниченной ответственностью «Сфера Телеком» Устройство для организации перегонной связи и способ организации перегонной связи (варианты)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL62566A0 (en) * 1980-04-18 1981-06-29 Kearney & Trecker Corp Digital data transmission system
US4581767A (en) * 1980-06-25 1986-04-08 The United States Of America As Represented By The Secretary Of The Army Measurement of jamming effectiveness by cross correlation techniques (C)
US4449231A (en) * 1981-09-25 1984-05-15 Northern Telecom Limited Test signal generator for simulated speech
US4663766A (en) * 1984-10-10 1987-05-05 Paradyne Corporation Method of determining automatically the rate of data signals in a modem
US5054035A (en) * 1989-12-21 1991-10-01 At&T Bell Laboratories Digital signal quality evaluation circuit using synchronization patterns
US5157651A (en) * 1990-07-26 1992-10-20 General Datacomm, Inc. Apparatus and method for determining line rates
JP3269577B2 (ja) * 1991-10-02 2002-03-25 モトローラ・インコーポレイテッド ビット誤り率検出方法
WO1993009612A1 (en) * 1991-10-30 1993-05-13 Raychem Corporation Alarm and test system with improved coupling circuit for a digital added main line

Also Published As

Publication number Publication date
EP1780928A1 (en) 2007-05-02
AU4371196A (en) 1996-06-19
KR980700749A (ko) 1998-03-30
FI120377B (fi) 2009-09-30
CN1160895C (zh) 2004-08-04
FI972208A0 (fi) 1997-05-23
FI118913B (fi) 2008-04-30
ZA9510109B (en) 1996-06-06
JPH10510121A (ja) 1998-09-29
ATE355668T1 (de) 2006-03-15
IL116183A (en) 2003-11-23
HK1005282A1 (en) 1998-12-31
EP0806101A1 (en) 1997-11-12
DE69535410D1 (de) 2007-04-12
CN1174640A (zh) 1998-02-25
IL116183A0 (en) 1996-01-31
FI972208A (fi) 1997-07-28
US5802105A (en) 1998-09-01
WO1996017454A1 (en) 1996-06-06
CA2206251C (en) 2005-06-07
RU2142197C1 (ru) 1999-11-27
CA2206251A1 (en) 1996-06-06
TW285795B (fi) 1996-09-11
EP0806101B1 (en) 2007-02-28
BR9510001A (pt) 1998-01-13
JP3388752B2 (ja) 2003-03-24
MX9704019A (es) 1997-09-30
KR100396363B1 (ko) 2003-11-28
DE69535410T2 (de) 2007-12-06
AR000234A1 (es) 1997-05-28
ES2282996T3 (es) 2007-10-16
AU706824B2 (en) 1999-06-24

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