DE60045328D1 - Mehrstufige pn-kode-erfassungschaltung und -verfahren - Google Patents

Mehrstufige pn-kode-erfassungschaltung und -verfahren

Info

Publication number
DE60045328D1
DE60045328D1 DE60045328T DE60045328T DE60045328D1 DE 60045328 D1 DE60045328 D1 DE 60045328D1 DE 60045328 T DE60045328 T DE 60045328T DE 60045328 T DE60045328 T DE 60045328T DE 60045328 D1 DE60045328 D1 DE 60045328D1
Authority
DE
Germany
Prior art keywords
stage
detection circuit
code detection
code
circuit
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 - Lifetime
Application number
DE60045328T
Other languages
English (en)
Inventor
Sundararajan Sriram
Srinath Hosur
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of DE60045328D1 publication Critical patent/DE60045328D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/70735—Code identification
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70702—Intercell-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707—Efficiency-related aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
DE60045328T 1999-03-22 2000-03-22 Mehrstufige pn-kode-erfassungschaltung und -verfahren Expired - Lifetime DE60045328D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12544399P 1999-03-22 1999-03-22
PCT/US2000/007774 WO2000057569A1 (en) 1999-03-22 2000-03-22 Multistage pn code acquisition circuit and method

Publications (1)

Publication Number Publication Date
DE60045328D1 true DE60045328D1 (de) 2011-01-20

Family

ID=22419754

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60045328T Expired - Lifetime DE60045328D1 (de) 1999-03-22 2000-03-22 Mehrstufige pn-kode-erfassungschaltung und -verfahren

Country Status (3)

Country Link
EP (1) EP1078473B1 (de)
DE (1) DE60045328D1 (de)
WO (1) WO2000057569A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW490981B (en) * 2000-10-30 2002-06-11 Ind Tech Res Inst Method and device for code group identification and frame boundary synchronization
US6813478B2 (en) * 2001-02-12 2004-11-02 Qualcomm Inc Method and apparatus for searching a gated pilot
US7826493B2 (en) * 2001-08-27 2010-11-02 Broadcom Corp. Frequency offset correction circuit for WCDMA
WO2003047117A2 (en) 2001-11-29 2003-06-05 Interdigital Technology Corporation System and method using primary and secondary synchronization codes during cell search

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2172074C2 (ru) * 1995-08-03 2001-08-10 Нортерн Телеком Лимитед Способ синхронизации псевдослучайной числовой последовательности с неопределенностью знака в системе связи
JP2888783B2 (ja) * 1995-10-20 1999-05-10 エヌ・ティ・ティ移動通信網株式会社 スペクトラム拡散通信のためのマッチドフィルタ回路
DE69737670T2 (de) * 1996-03-05 2007-10-04 Ntt Docomo Inc. Signalübertragungsverfahren, sender und empfänger für ein mobiles kommunikationssystem
US5781543A (en) * 1996-08-29 1998-07-14 Qualcomm Incorporated Power-efficient acquisition of a CDMA pilot signal
US6049576A (en) * 1996-10-29 2000-04-11 Stanford Telecommunications, Inc. Kronecker product code acquisition system
US6144649A (en) * 1997-02-27 2000-11-07 Motorola, Inc. Method and apparatus for acquiring a pilot signal in a CDMA receiver

Also Published As

Publication number Publication date
WO2000057569A1 (en) 2000-09-28
EP1078473B1 (de) 2010-12-08
WO2000057569A9 (en) 2001-11-15
EP1078473A4 (de) 2004-07-21
EP1078473A1 (de) 2001-02-28

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