CN101040454B - 使用码分多址接收机的方法 - Google Patents

使用码分多址接收机的方法 Download PDF

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Publication number
CN101040454B
CN101040454B CN2005800348894A CN200580034889A CN101040454B CN 101040454 B CN101040454 B CN 101040454B CN 2005800348894 A CN2005800348894 A CN 2005800348894A CN 200580034889 A CN200580034889 A CN 200580034889A CN 101040454 B CN101040454 B CN 101040454B
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CN
China
Prior art keywords
correlation
digital filter
signal
received signal
cdma
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.)
Expired - Fee Related
Application number
CN2005800348894A
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English (en)
Chinese (zh)
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CN101040454A (zh
Inventor
韦恩·H·布雷德利
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Apple Inc
Original Assignee
Freescale Semiconductor Inc
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Filing date
Publication date
Application filed by Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Publication of CN101040454A publication Critical patent/CN101040454A/zh
Application granted granted Critical
Publication of CN101040454B publication Critical patent/CN101040454B/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
CN2005800348894A 2004-10-28 2005-10-27 使用码分多址接收机的方法 Expired - Fee Related CN101040454B (zh)

Applications Claiming Priority (3)

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
PCT/US2005/038856 WO2006050055A2 (en) 2004-10-28 2005-10-27 Tone detection using a cdma receiver

Publications (2)

Publication Number Publication Date
CN101040454A CN101040454A (zh) 2007-09-19
CN101040454B true CN101040454B (zh) 2010-06-16

Family

ID=36319646

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2005800348894A Expired - Fee Related CN101040454B (zh) 2004-10-28 2005-10-27 使用码分多址接收机的方法

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
US8279812B2 (en) * 2007-07-12 2012-10-02 Industrial Technology Research Institute Method and module for constructing a frame structure in communication systems
US8265096B2 (en) * 2007-07-12 2012-09-11 Industrial Technology Research Institute Method for constructing frame structures
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649308A (en) * 1993-04-12 1997-07-15 Trw Inc. Multiformat auto-handoff communications handset
CN1247417A (zh) * 1998-08-04 2000-03-15 朗迅科技公司 用于码分多址系统的检测器
US6049577A (en) * 1998-05-28 2000-04-11 Glenayre Electronics, Inc. Header synchronization detector
US6373881B1 (en) * 1997-07-30 2002-04-16 Nec Corporation CDMA receiver using sampled chip sequence for precision synchronization with received data sequence

Family Cites Families (16)

* 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
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
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
US7876729B1 (en) * 1998-07-20 2011-01-25 Qualcomm Incorporated Intersystem base station handover
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
US6957042B2 (en) * 2000-01-10 2005-10-18 Airnet Communications Corporation Packet based backhaul channel configuration for a wireless repeater
ATE262238T1 (de) * 2000-12-07 2004-04-15 Motorola Inc Mehrzweigiger kommunikationsempfänger
US6980602B1 (en) * 2001-01-31 2005-12-27 Comsys Communication & Signal Processing Ltd. Normalization of equalizer soft output for channels with varying noise power
US7139305B2 (en) * 2001-08-02 2006-11-21 Infineon Technologies Ag Configurable terminal engine
GB2397988B (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
US8139540B2 (en) * 2004-07-02 2012-03-20 Freescale Semiconductor, Inc. Arrangement and method for dual mode operation in a communication system terminal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5649308A (en) * 1993-04-12 1997-07-15 Trw Inc. Multiformat auto-handoff communications handset
US6373881B1 (en) * 1997-07-30 2002-04-16 Nec Corporation CDMA receiver using sampled chip sequence for precision synchronization with received data sequence
US6049577A (en) * 1998-05-28 2000-04-11 Glenayre Electronics, Inc. Header synchronization detector
CN1247417A (zh) * 1998-08-04 2000-03-15 朗迅科技公司 用于码分多址系统的检测器

Also Published As

Publication number Publication date
JP5341241B2 (ja) 2013-11-13
WO2006050055A3 (en) 2006-12-14
KR20070072898A (ko) 2007-07-06
CN101040454A (zh) 2007-09-19
US20050111529A1 (en) 2005-05-26
JP2008519486A (ja) 2008-06-05
JP2013013094A (ja) 2013-01-17
WO2006050055A2 (en) 2006-05-11

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Owner name: APPLE COMPUTER, INC.

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Effective date: 20130911

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Patentee after: Apple Computer, Inc.

Address before: Texas in the United States

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Granted publication date: 20100616

Termination date: 20181027

CF01 Termination of patent right due to non-payment of annual fee