CA2335742A1 - Method and apparatus for storing and accessing different chip sequences - Google Patents

Method and apparatus for storing and accessing different chip sequences Download PDF

Info

Publication number
CA2335742A1
CA2335742A1 CA002335742A CA2335742A CA2335742A1 CA 2335742 A1 CA2335742 A1 CA 2335742A1 CA 002335742 A CA002335742 A CA 002335742A CA 2335742 A CA2335742 A CA 2335742A CA 2335742 A1 CA2335742 A1 CA 2335742A1
Authority
CA
Canada
Prior art keywords
chip
memory
chip sequence
sequence
sequences
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.)
Abandoned
Application number
CA002335742A
Other languages
English (en)
French (fr)
Inventor
Hakan Eriksson
Martin Jonson
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2335742A1 publication Critical patent/CA2335742A1/en
Abandoned 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
    • H04B1/7097—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
    • 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
    • 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
    • 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
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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)
  • Circuits Of Receivers In General (AREA)
  • Radar Systems Or Details Thereof (AREA)
CA002335742A 1998-06-23 1999-06-16 Method and apparatus for storing and accessing different chip sequences Abandoned CA2335742A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10277098A 1998-06-23 1998-06-23
US09/102,770 1998-06-23
PCT/SE1999/001078 WO1999067895A1 (en) 1998-06-23 1999-06-16 Method and apparatus for storing and accessing different chip sequences

Publications (1)

Publication Number Publication Date
CA2335742A1 true CA2335742A1 (en) 1999-12-29

Family

ID=22291593

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002335742A Abandoned CA2335742A1 (en) 1998-06-23 1999-06-16 Method and apparatus for storing and accessing different chip sequences

Country Status (15)

Country Link
EP (1) EP1090465A1 (ja)
JP (1) JP2002519887A (ja)
KR (1) KR20010071566A (ja)
CN (1) CN1307756A (ja)
AR (1) AR018927A1 (ja)
AU (1) AU4941099A (ja)
BR (1) BR9911434A (ja)
CA (1) CA2335742A1 (ja)
EE (1) EE200000777A (ja)
HK (1) HK1039225A1 (ja)
ID (1) ID27301A (ja)
IL (1) IL139840A0 (ja)
NO (1) NO20006509D0 (ja)
RU (1) RU2001101930A (ja)
WO (1) WO1999067895A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7031271B1 (en) 1999-05-19 2006-04-18 Motorola, Inc. Method of and apparatus for activating a spread-spectrum radiotelephone
US7085246B1 (en) 1999-05-19 2006-08-01 Motorola, Inc. Method and apparatus for acquisition of a spread-spectrum signal
DE10241691A1 (de) * 2002-09-09 2004-03-25 Infineon Technologies Ag Einrichtung und Verfahren zur Durchführung von Korrelationen in einem Mobilfunksystem
US7522655B2 (en) 2002-09-09 2009-04-21 Infineon Technologies Ag Method and device for carrying out a plurality of correlation procedures in a mobile telephony environment
CN100365945C (zh) * 2005-07-28 2008-01-30 上海大学 码分多址的扩谱通信系统和无中心无线网络
CN101162919B (zh) * 2006-10-11 2011-01-05 中兴通讯股份有限公司 一种数据缓存电路

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345508A (en) * 1993-08-23 1994-09-06 Apple Computer, Inc. Method and apparatus for variable-overhead cached encryption
US5490165A (en) * 1993-10-28 1996-02-06 Qualcomm Incorporated Demodulation element assignment in a system capable of receiving multiple signals
JP2689890B2 (ja) * 1993-12-30 1997-12-10 日本電気株式会社 スペクトラム拡散受信機
US5457713A (en) * 1994-03-07 1995-10-10 Sanconix, Inc. Spread spectrum alignment repositioning method
JP3372135B2 (ja) * 1995-05-24 2003-01-27 ソニー株式会社 通信端末装置
EP0767544A3 (en) * 1995-10-04 2002-02-27 Interuniversitair Micro-Elektronica Centrum Vzw Programmable modem using spread spectrum communication

Also Published As

Publication number Publication date
JP2002519887A (ja) 2002-07-02
RU2001101930A (ru) 2002-12-20
AR018927A1 (es) 2001-12-12
EP1090465A1 (en) 2001-04-11
NO20006509L (no) 2000-12-20
ID27301A (id) 2001-03-22
IL139840A0 (en) 2002-02-10
CN1307756A (zh) 2001-08-08
NO20006509D0 (no) 2000-12-20
WO1999067895A1 (en) 1999-12-29
HK1039225A1 (zh) 2002-04-12
BR9911434A (pt) 2001-03-20
AU4941099A (en) 2000-01-10
KR20010071566A (ko) 2001-07-28
EE200000777A (et) 2002-04-15

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20060616