SG102622A1 - Apparatus and method for measurement of communication quality in cdma system - Google Patents

Apparatus and method for measurement of communication quality in cdma system

Info

Publication number
SG102622A1
SG102622A1 SG200102522A SG200102522A SG102622A1 SG 102622 A1 SG102622 A1 SG 102622A1 SG 200102522 A SG200102522 A SG 200102522A SG 200102522 A SG200102522 A SG 200102522A SG 102622 A1 SG102622 A1 SG 102622A1
Authority
SG
Singapore
Prior art keywords
measurement
communication quality
cdma system
cdma
quality
Prior art date
Application number
SG200102522A
Other languages
English (en)
Inventor
Imai Tetsuro
Mori Shinichi
Original Assignee
Ntt Docomo 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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of SG102622A1 publication Critical patent/SG102622A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • 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
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H04B1/7093—Matched filter type
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
SG200102522A 2000-04-06 2001-04-05 Apparatus and method for measurement of communication quality in cdma system SG102622A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000105485 2000-04-06
JP2000105486 2000-04-06
JP2001053033A JP3805205B2 (ja) 2000-04-06 2001-02-27 Ｃｄｍａセルラ方式における通信品質測定方法およびその装置

Publications (1)

Publication Number Publication Date
SG102622A1 true SG102622A1 (en) 2004-03-26

Family

ID=27343016

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200102522A SG102622A1 (en) 2000-04-06 2001-04-05 Apparatus and method for measurement of communication quality in cdma system

Country Status (7)

Country Link
US (2) US7050482B2 (zh)
EP (4) EP1819065B1 (zh)
JP (1) JP3805205B2 (zh)
KR (1) KR100413096B1 (zh)
CN (5) CN1272926C (zh)
AU (1) AU754356B2 (zh)
SG (1) SG102622A1 (zh)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20010615A1 (it) * 2001-03-23 2002-09-23 Cit Alcatel Metodo per la selezione del segnale di sincronismo in un combinatore in bande base e relativo combinatore in banda base
US6826411B2 (en) * 2002-06-27 2004-11-30 Interdigital Technology Corporation Low power interference signal code power (ISCP) measurement
DE10303912B4 (de) * 2003-01-31 2005-03-17 Infineon Technologies Ag Verfahren und Vorrichtung zur Bestimmung von Energieverzögerungsprofilen bei einer Datenstrombübertragung über mehrfache Datenübertragungspfade
JP4238987B2 (ja) * 2003-10-08 2009-03-18 日本電気株式会社 Ｃｄｍａ受信方法及び装置
EP1659698A4 (en) * 2003-10-24 2008-06-18 Matsushita Electric Ind Co Ltd MEASURING DEVICE FOR ELECTRICAL POWER, ELECTRICAL POWER CONTROL DEVICE, WIRELESS COMMUNICATION DEVICE AND MEASURING METHOD FOR ELECTRICAL POWER
US7397766B2 (en) * 2004-03-31 2008-07-08 Lucent Technologies Inc. High-speed traffic measurement and analysis methodologies and protocols
GB2423449B (en) * 2005-02-21 2009-10-07 British Broadcasting Corp Signal meter for digital systems
TW200723789A (en) * 2005-12-14 2007-06-16 Chung Shan Inst Of Science Method for correlatively encoding and decoding
US20070244952A1 (en) * 2006-03-23 2007-10-18 Rda Pty Ltd Signal analysis methods
FI20065197A0 (fi) * 2006-03-27 2006-03-27 Nokia Corp Nousevan siirtotien synkronointiparametrin voimassaolon päättely pakettiradiojärjestelmässä
WO2007132412A2 (en) * 2006-05-17 2007-11-22 Nxp B.V. Method and apparatus for estimating noise varience
WO2008001424A1 (fr) * 2006-06-26 2008-01-03 Kyocera Corporation dispositif de communication OFDM et procédé de décision de longueur d'intervalle de garde
JP2008022086A (ja) * 2006-07-10 2008-01-31 Nec Commun Syst Ltd 通信品質測定装置、通信品質測定方法及び通信測定プログラム
CN1905419B (zh) * 2006-08-08 2010-12-01 上海华为技术有限公司 一种干扰检测处理系统及方法
CN101507234B (zh) * 2006-08-24 2012-11-28 三星电子株式会社 在长期演进中用于子帧识别和帧边界检测的系统和方法
KR101208540B1 (ko) * 2006-10-30 2012-12-05 엘지전자 주식회사 코드 분할 다중 접속 방식 이동통신 시스템에서 동기 코드특성을 이용한 초기 셀 탐색 방법 및 장치
JP4634362B2 (ja) * 2006-12-11 2011-02-16 株式会社エヌ・ティ・ティ・ドコモ 移動体通信システム、移動体通信システムにおける移動端末、その制御プログラムおよび移動体通信システムにおける同期確立判定方法
US9113362B2 (en) * 2006-12-12 2015-08-18 At&T Mobility Ii Llc Method and apparatus to separate coverage limited and co-channel limited interferences
JP5217688B2 (ja) * 2008-06-30 2013-06-19 富士通セミコンダクター株式会社 無線端末装置、半導体装置及び通信システム
WO2010024314A1 (ja) * 2008-08-27 2010-03-04 株式会社エヌ・ティ・ティ・ドコモ 移動局及び移動通信方法
CN102217388A (zh) * 2008-11-28 2011-10-12 松下电器产业株式会社 无线通信基站装置以及总发送功率控制方法
US9407357B1 (en) 2009-05-29 2016-08-02 Rockwell Collins, Inc. Systems and methods for radio node synchronization based on range calculations
JP5656384B2 (ja) * 2009-10-07 2015-01-21 ソニー株式会社 無線通信装置、信号強度出力方法及び無線通信システム
DE102014104349B4 (de) * 2014-03-28 2016-06-02 Intel IP Corporation Verfahren und Vorrichtung zum Schätzen einer Interferenz in einem Empfangssignal
US10879952B2 (en) * 2018-04-18 2020-12-29 Huawei Technologies Co., Ltd. Apparatus and receiver for performing synchronization in analog spread spectrum systems
CN109102816B (zh) * 2018-08-14 2020-12-29 Oppo广东移动通信有限公司 编码控制方法、装置以及电子设备
US10624041B1 (en) * 2019-04-29 2020-04-14 Itron, Inc. Packet error rate estimator for a radio
US11075721B2 (en) 2019-04-29 2021-07-27 Itron, Inc. Channel plan management in a radio network
US11102050B2 (en) 2019-04-29 2021-08-24 Itron, Inc. Broadband digitizer used for channel assessment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682418A2 (en) * 1994-05-12 1995-11-15 Ntt Mobile Communications Network Inc. Transmission power control for mobile radio
EP0820156A2 (en) * 1996-07-15 1998-01-21 Nec Corporation Reception timing detection circuit of CDMA receiver and detection method
EP0982879A1 (en) * 1998-03-10 2000-03-01 Matsushita Electric Industrial Co., Ltd. Cdma base station and method of transmission power control
EP0987833A2 (en) * 1998-09-18 2000-03-22 Nec Corporation Transmission power control system and method in code division multiple access system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4943974A (en) * 1988-10-21 1990-07-24 Geostar Corporation Detection of burst signal transmissions
DE4318368C1 (de) * 1993-05-28 1994-07-14 Siemens Ag Verfahren zum Gewinnen eines einen Ausfall der Synchronisation zwischen einer Pseudozufallssignalfolge eines Senders und einer Referenz-Pseudozufallssignalfolge eines Empfängers anzeigenden Signals
US5414730A (en) * 1993-12-21 1995-05-09 Unisys Corporation Asynchronous samples data demodulation system
KR970003966B1 (ko) * 1994-11-22 1997-03-24 삼성전자 주식회사 윈도우필터를 이용한 직접확산통신시스템의 수신기
US5805648A (en) * 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
FI100041B (fi) * 1995-12-29 1997-08-29 Nokia Telecommunications Oy Menetelmä signaalin ja kohinan laadun estimoimiseksi ja vastaanotin
KR0162978B1 (ko) * 1996-02-06 1998-12-01 서정욱 코드 분할 다중 접속 시스템에서 수신 신호에 대한 신호 대 간섭비 측정 장치 및 그 방법
JP3376224B2 (ja) * 1996-10-23 2003-02-10 株式会社エヌ・ティ・ティ・ドコモ Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機
JPH10190497A (ja) * 1996-12-27 1998-07-21 Fujitsu Ltd Ｓｉｒ測定装置
AU688228B1 (en) * 1997-02-25 1998-03-05 Nokia Telecommunications Oy A system and method of estimating CIR
US5991273A (en) * 1997-05-01 1999-11-23 Nortel Networks Corporation Determining SINR in a communications system
US6285655B1 (en) * 1997-09-08 2001-09-04 Qualcomm Inc. Method and apparatus for providing orthogonal spot beams, sectors, and picocells
JP2991170B2 (ja) * 1997-10-01 1999-12-20 日本電気株式会社 Ｃｄｍａ受信装置および方法
KR100693682B1 (ko) * 1997-10-10 2007-03-09 콸콤 인코포레이티드 다중 사용자 통신 시스템의 다층 ｐｎ 코드 확산
AU739474B2 (en) * 1998-06-13 2001-10-11 Samsung Electronics Co., Ltd. Device and method for measuring non-orthogonal noise power for CDMA communication system
JP3964998B2 (ja) * 1999-01-14 2007-08-22 株式会社日立国際電気 移動局の受信機
EP1063781A1 (en) * 1999-06-18 2000-12-27 Alcatel Method of finding the best transmission channels for a CDMA signal, and components therefor
JP3862918B2 (ja) * 1999-06-22 2006-12-27 シャープ株式会社 フィルタ回路
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
US6549565B1 (en) * 1999-12-07 2003-04-15 Lucent Technologies Inc. Code division multiple access system and method of operation with improved signal acquisition and processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0682418A2 (en) * 1994-05-12 1995-11-15 Ntt Mobile Communications Network Inc. Transmission power control for mobile radio
EP0820156A2 (en) * 1996-07-15 1998-01-21 Nec Corporation Reception timing detection circuit of CDMA receiver and detection method
EP0982879A1 (en) * 1998-03-10 2000-03-01 Matsushita Electric Industrial Co., Ltd. Cdma base station and method of transmission power control
EP0987833A2 (en) * 1998-09-18 2000-03-22 Nec Corporation Transmission power control system and method in code division multiple access system

Also Published As

Publication number Publication date
EP1143632A3 (en) 2005-11-02
CN100566192C (zh) 2009-12-02
CN1617463B (zh) 2010-04-21
EP1947778A1 (en) 2008-07-23
CN100566193C (zh) 2009-12-02
EP1814238A1 (en) 2007-08-01
US7050482B2 (en) 2006-05-23
US7333529B2 (en) 2008-02-19
EP1819065A2 (en) 2007-08-15
EP1143632A2 (en) 2001-10-10
CN1617460A (zh) 2005-05-18
CN1617462A (zh) 2005-05-18
JP2001352275A (ja) 2001-12-21
US20050272460A1 (en) 2005-12-08
CN1617462B (zh) 2010-04-28
EP1819065B1 (en) 2012-11-21
JP3805205B2 (ja) 2006-08-02
KR100413096B1 (ko) 2003-12-31
AU754356B2 (en) 2002-11-14
KR20010098471A (ko) 2001-11-08
AU3506301A (en) 2001-10-11
CN1617461A (zh) 2005-05-18
US20010030991A1 (en) 2001-10-18
CN1322074A (zh) 2001-11-14
EP1819065A3 (en) 2007-11-07
EP1814238B1 (en) 2017-05-31
CN1272926C (zh) 2006-08-30
CN1617463A (zh) 2005-05-18

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