GB2396788B - Improvements in CDMA receivers - Google Patents

Improvements in CDMA receivers

Info

Publication number
GB2396788B
GB2396788B GB0406605A GB0406605A GB2396788B GB 2396788 B GB2396788 B GB 2396788B GB 0406605 A GB0406605 A GB 0406605A GB 0406605 A GB0406605 A GB 0406605A GB 2396788 B GB2396788 B GB 2396788B
Authority
GB
United Kingdom
Prior art keywords
cdma receivers
cdma
receivers
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
GB0406605A
Other versions
GB0406605D0 (en
GB2396788A (en
Inventor
Hafedh Trigui
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to GB0406605A priority Critical patent/GB2396788B/en
Publication of GB0406605D0 publication Critical patent/GB0406605D0/en
Publication of GB2396788A publication Critical patent/GB2396788A/en
Application granted granted Critical
Publication of GB2396788B publication Critical patent/GB2396788B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation
    • 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
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7107—Subtractive interference cancellation
    • 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
GB0406605A 2000-09-07 2000-09-07 Improvements in CDMA receivers Expired - Fee Related GB2396788B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0406605A GB2396788B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0406605A GB2396788B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers
GB0021997A GB2370469B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers

Publications (3)

Publication Number Publication Date
GB0406605D0 GB0406605D0 (en) 2004-04-28
GB2396788A GB2396788A (en) 2004-06-30
GB2396788B true GB2396788B (en) 2004-10-27

Family

ID=9899053

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0406605A Expired - Fee Related GB2396788B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers
GB0021997A Expired - Fee Related GB2370469B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0021997A Expired - Fee Related GB2370469B (en) 2000-09-07 2000-09-07 Improvements in CDMA receivers

Country Status (1)

Country Link
GB (2) GB2396788B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7313168B2 (en) * 2003-03-06 2007-12-25 Nokia Corporation Method and apparatus for receiving a CDMA signal
GB0419487D0 (en) 2004-09-02 2004-10-06 Ttp Communications Ltd DC estimation in received signals

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1107526A1 (en) * 1999-12-09 2001-06-13 Alcatel Alsthom Compagnie Generale D'electricite Channel estimation using weighted averages over several time slots

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282300B (en) * 1993-09-22 1997-10-22 Northern Telecom Ltd Communications system and receiver devices therefor
AU688228B1 (en) * 1997-02-25 1998-03-05 Nokia Telecommunications Oy A system and method of estimating CIR
GB2341296B (en) * 1998-09-04 2003-05-28 Siemens Ag Data detector and method of detecting data from a sequence of received signal samples
US6658047B1 (en) * 1999-03-10 2003-12-02 Nokia Corporation Adaptive channel equalizer
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
EP1145459B1 (en) * 1999-11-26 2006-05-24 Nokia Corporation Rake receiver
IT1314344B1 (en) * 1999-12-30 2002-12-09 Telit Mobile Terminals Spa RECEIVER METHOD AND WCDMA-UTRA / FDD TRANSMISSION SYSTEM

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1107526A1 (en) * 1999-12-09 2001-06-13 Alcatel Alsthom Compagnie Generale D'electricite Channel estimation using weighted averages over several time slots

Also Published As

Publication number Publication date
GB2370469A (en) 2002-06-26
GB0021997D0 (en) 2000-10-25
GB0406605D0 (en) 2004-04-28
GB2370469B (en) 2004-10-27
GB2396788A (en) 2004-06-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170907