KR20070072898A - Ｃｄｍａ 수신기를 이용하는 톤 검출 - Google Patents

Ｃｄｍａ 수신기를 이용하는 톤 검출 Download PDF

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Publication number
KR20070072898A
KR20070072898A KR1020077009613A KR20077009613A KR20070072898A KR 20070072898 A KR20070072898 A KR 20070072898A KR 1020077009613 A KR1020077009613 A KR 1020077009613A KR 20077009613 A KR20077009613 A KR 20077009613A KR 20070072898 A KR20070072898 A KR 20070072898A
Authority
KR
South Korea
Prior art keywords
digital filter
correlation
tap weights
received signal
signal
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
KR1020077009613A
Other languages
English (en)
Korean (ko)
Inventor
웨인 에이치. 브래들리
Original Assignee
프리스케일 세미컨덕터, 인크.
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 프리스케일 세미컨덕터, 인크. filed Critical 프리스케일 세미컨덕터, 인크.
Publication of KR20070072898A publication Critical patent/KR20070072898A/ko
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0012—Modulated-carrier systems arrangements for identifying the type of 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • 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
    • H04B1/71—Interference-related aspects the interference being narrowband interference
    • H04B1/7101—Interference-related aspects the interference being narrowband interference with estimation filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
KR1020077009613A 2004-10-28 2005-10-27 Ｃｄｍａ 수신기를 이용하는 톤 검출 Withdrawn KR20070072898A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/904,196 US20050111529A1 (en) 2001-02-22 2004-10-28 Tone detection using a cdma receiver
US10/904,196 2004-10-28

Publications (1)

Publication Number Publication Date
KR20070072898A true KR20070072898A (ko) 2007-07-06

Family

ID=36319646

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020077009613A Withdrawn KR20070072898A (ko) 2004-10-28 2005-10-27 Ｃｄｍａ 수신기를 이용하는 톤 검출

Country Status (5)

Country Link
US (1) US20050111529A1 (enExample)
JP (2) JP2008519486A (enExample)
KR (1) KR20070072898A (enExample)
CN (1) CN101040454B (enExample)
WO (1) WO2006050055A2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7649869B2 (en) * 2005-08-12 2010-01-19 Qualcomm, Incorporated Efficient cell measurements during transmission gaps in a compressed mode
US8265096B2 (en) * 2007-07-12 2012-09-11 Industrial Technology Research Institute Method for constructing frame structures
US8279812B2 (en) * 2007-07-12 2012-10-02 Industrial Technology Research Institute Method and module for constructing a frame structure in communication systems
EP2091197A1 (en) * 2008-02-15 2009-08-19 Motorola, Inc., A Corporation of the State of Delaware; Method and device for detecting a GSM channel of interest

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0761090B2 (ja) * 1993-03-05 1995-06-28 警察大学校長 多値変調の周波数オフセット補償方法とその回路
US5649308A (en) * 1993-04-12 1997-07-15 Trw Inc. Multiformat auto-handoff communications handset
JPH09294095A (ja) * 1996-04-26 1997-11-11 Oki Electric Ind Co Ltd 適応等化器
US5978742A (en) * 1997-04-04 1999-11-02 Tektronix, Inc. Method and apparatus for digital sampling of electrical waveforms
JP2858573B1 (ja) * 1997-07-30 1999-02-17 日本電気株式会社 スペクトラム拡散受信装置
US6222592B1 (en) * 1998-01-13 2001-04-24 Samsung Electronics Co., Ltd. TV receiver equalizer storing channel characterizations for each TV channel between times of reception therefrom
US6434186B2 (en) * 1998-03-27 2002-08-13 Nokia Mobile Phones Limited Priority channel search based on spectral analysis and signal recognition
US6049577A (en) * 1998-05-28 2000-04-11 Glenayre Electronics, Inc. Header synchronization detector
US7876729B1 (en) * 1998-07-20 2011-01-25 Qualcomm Incorporated Intersystem base station handover
US6301293B1 (en) * 1998-08-04 2001-10-09 Agere Systems Guardian Corp. Detectors for CDMA systems
JP2001016135A (ja) * 1999-06-29 2001-01-19 Nec Corp 自動周波数制御方法と自動周波数制御方式とｃｄｍａ受信機
AU2001227681A1 (en) * 2000-01-10 2001-07-31 Airnet Communications Corporation Packet based backhaul channel configuration for a wireless repeater
EP1213844B1 (en) * 2000-12-07 2004-03-17 Motorola, Inc. Multibranch communications receiver
US6980602B1 (en) * 2001-01-31 2005-12-27 Comsys Communication & Signal Processing Ltd. Normalization of equalizer soft output for channels with varying noise power
CN100531018C (zh) * 2001-08-02 2009-08-19 英芬能技术公司 可配置的终端引擎
GB2397989B (en) * 2001-11-02 2004-12-15 Toshiba Res Europ Ltd Receiver processing system
JP3967604B2 (ja) * 2002-02-15 2007-08-29 株式会社東芝 Ｒａｋｅ受信機
JP4084127B2 (ja) * 2002-08-26 2008-04-30 株式会社東芝 電力指示判定装置および移動通信端末
AU2003236274A1 (en) * 2003-04-07 2004-11-01 Fujitsu Limited Dual mode system and dual mode radio termial
CN1977556B (zh) * 2004-07-02 2011-09-07 飞思卡尔半导体公司 通信系统终端中双模操作的装置和电路

Also Published As

Publication number Publication date
JP2008519486A (ja) 2008-06-05
JP2013013094A (ja) 2013-01-17
CN101040454A (zh) 2007-09-19
CN101040454B (zh) 2010-06-16
WO2006050055A2 (en) 2006-05-11
US20050111529A1 (en) 2005-05-26
JP5341241B2 (ja) 2013-11-13
WO2006050055A3 (en) 2006-12-14

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Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20070427

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid