DK0908008T3 - Effektiv flerkanlasfiltrering til CDMA modemer - Google Patents

Effektiv flerkanlasfiltrering til CDMA modemer

Info

Publication number
DK0908008T3
DK0908008T3 DK97931346T DK97931346T DK0908008T3 DK 0908008 T3 DK0908008 T3 DK 0908008T3 DK 97931346 T DK97931346 T DK 97931346T DK 97931346 T DK97931346 T DK 97931346T DK 0908008 T3 DK0908008 T3 DK 0908008T3
Authority
DK
Denmark
Prior art keywords
filter
channels
inputs
lut
output
Prior art date
Application number
DK97931346T
Other languages
English (en)
Inventor
Robert T Regis
Original Assignee
Interdigital Tech 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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Application granted granted Critical
Publication of DK0908008T3 publication Critical patent/DK0908008T3/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0225—Measures concerning the multipliers
    • H03H17/0226—Measures concerning the multipliers comprising look-up tables
    • 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
    • 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
    • H04B1/70753—Partial phase search
    • 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
    • H04B1/70755—Setting of lock conditions, e.g. threshold
    • 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
    • H04B1/70758—Multimode search, i.e. using multiple search strategies
    • 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
    • H04B1/708—Parallel implementation
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • 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
DK97931346T 1996-06-27 1997-06-24 Effektiv flerkanlasfiltrering til CDMA modemer DK0908008T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/670,160 US6487190B1 (en) 1996-06-27 1996-06-27 Efficient multichannel filtering for CDMA modems
PCT/US1997/010909 WO1997050173A1 (en) 1996-06-27 1997-06-24 Efficient multichannel filtering for cdma modems

Publications (1)

Publication Number Publication Date
DK0908008T3 true DK0908008T3 (da) 2003-09-15

Family

ID=24689238

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97931346T DK0908008T3 (da) 1996-06-27 1997-06-24 Effektiv flerkanlasfiltrering til CDMA modemer

Country Status (13)

Country Link
US (3) US6487190B1 (da)
EP (3) EP1739832A3 (da)
JP (1) JP3550598B2 (da)
KR (1) KR100383266B1 (da)
CN (1) CN1117431C (da)
AT (2) ATE240611T1 (da)
AU (1) AU3499697A (da)
CA (2) CA2259261C (da)
DE (3) DE69736444T2 (da)
DK (1) DK0908008T3 (da)
ES (2) ES2137908T3 (da)
HK (2) HK1017175A1 (da)
WO (1) WO1997050173A1 (da)

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US7702048B2 (en) * 2005-11-15 2010-04-20 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US20070110135A1 (en) 2005-11-15 2007-05-17 Tommy Guess Iterative interference cancellation for MIMO-OFDM receivers
US20070112901A1 (en) * 2005-11-15 2007-05-17 Afshin Niktash Configurable digital filter
EP1983656A1 (en) 2007-04-19 2008-10-22 MediaTek Inc. Shared filter design for pilot symbol averaging in rake fingers in WCDMA systems
US8588253B2 (en) 2008-06-26 2013-11-19 Qualcomm Incorporated Methods and apparatuses to reduce context switching during data transmission and reception in a multi-processor device
JP6219631B2 (ja) * 2013-07-29 2017-10-25 学校法人明星学苑 論理演算装置
US9900028B1 (en) * 2017-03-03 2018-02-20 Synaptics Incorporated Decimation filtering in systems having parallel analog-to-digital converter channels

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Also Published As

Publication number Publication date
EP1739832A3 (en) 2007-12-26
JP3550598B2 (ja) 2004-08-04
ES2268207T3 (es) 2007-03-16
DE69736444D1 (de) 2006-09-14
EP0908008A1 (en) 1999-04-14
EP1337040B1 (en) 2006-08-02
DE69721991T2 (de) 2004-05-19
HK1059992A1 (en) 2004-07-23
CN1117431C (zh) 2003-08-06
ES2137908T3 (es) 2004-02-16
EP1739832A2 (en) 2007-01-03
EP1337040A1 (en) 2003-08-20
DE69721991D1 (de) 2003-06-18
DE908008T1 (de) 1999-10-21
US6907024B2 (en) 2005-06-14
KR100383266B1 (ko) 2003-08-25
DE69736444T2 (de) 2007-08-02
US20030099284A1 (en) 2003-05-29
ATE240611T1 (de) 2003-05-15
US7631027B2 (en) 2009-12-08
JPH11513213A (ja) 1999-11-09
ATE335304T1 (de) 2006-08-15
CA2434522A1 (en) 1997-12-31
ES2137908T1 (es) 2000-01-01
KR20000022282A (ko) 2000-04-25
CA2259261A1 (en) 1997-12-31
EP0908008B1 (en) 2003-05-14
US20050223049A1 (en) 2005-10-06
WO1997050173A1 (en) 1997-12-31
AU3499697A (en) 1998-01-14
CN1223754A (zh) 1999-07-21
CA2259261C (en) 2003-10-21
US6487190B1 (en) 2002-11-26
HK1017175A1 (en) 1999-11-12

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