GB2377864B - DS-CDMA multi-user interference cenceller and DS-CDMA communication system - Google Patents

DS-CDMA multi-user interference cenceller and DS-CDMA communication system

Info

Publication number
GB2377864B
GB2377864B GB0225026A GB0225026A GB2377864B GB 2377864 B GB2377864 B GB 2377864B GB 0225026 A GB0225026 A GB 0225026A GB 0225026 A GB0225026 A GB 0225026A GB 2377864 B GB2377864 B GB 2377864B
Authority
GB
United Kingdom
Prior art keywords
cdma
cenceller
communication system
user interference
cdma communication
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
GB0225026A
Other versions
GB2377864A (en
GB0225026D0 (en
Inventor
Hideto Suzuki
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
Priority claimed from JP9507698A external-priority patent/JP3024750B2/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0225026D0 publication Critical patent/GB0225026D0/en
Publication of GB2377864A publication Critical patent/GB2377864A/en
Application granted granted Critical
Publication of GB2377864B publication Critical patent/GB2377864B/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
    • H04B1/709—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
    • H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
GB0225026A 1998-04-07 1999-04-07 DS-CDMA multi-user interference cenceller and DS-CDMA communication system Expired - Fee Related GB2377864B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9507698A JP3024750B2 (en) 1998-04-07 1998-04-07 DS-CDMA multi-user interference canceller and DS-CDMA communication system
GB9907921A GB2337419B (en) 1998-04-07 1999-04-07 DS-CDMA multi-user interference canceller and DS-CDMA communication system

Publications (3)

Publication Number Publication Date
GB0225026D0 GB0225026D0 (en) 2002-12-04
GB2377864A GB2377864A (en) 2003-01-22
GB2377864B true GB2377864B (en) 2003-03-12

Family

ID=26315391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0225026A Expired - Fee Related GB2377864B (en) 1998-04-07 1999-04-07 DS-CDMA multi-user interference cenceller and DS-CDMA communication system

Country Status (1)

Country Link
GB (1) GB2377864B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2418104B (en) * 2004-09-09 2007-03-28 Toshiba Res Europ Ltd An uplink interference cancelling CDMA base station uses the transmission timing of a new mobile station compared with that of other mobile stations

Also Published As

Publication number Publication date
GB2377864A (en) 2003-01-22
GB0225026D0 (en) 2002-12-04

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Legal Events

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

Effective date: 20130407