CN1117431C - 码分多址调制解调器的高效多信道滤波 - Google Patents

码分多址调制解调器的高效多信道滤波 Download PDF

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Publication number
CN1117431C
CN1117431C CN97195820A CN97195820A CN1117431C CN 1117431 C CN1117431 C CN 1117431C CN 97195820 A CN97195820 A CN 97195820A CN 97195820 A CN97195820 A CN 97195820A CN 1117431 C CN1117431 C CN 1117431C
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China
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memory
filter
output
adder
channel
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Expired - Fee Related
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CN97195820A
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Chinese (zh)
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CN1223754A (zh
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罗伯特T·雷杰斯
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InterDigital Technology Corp
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InterDigital Technology Corp
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    • 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
CN97195820A 1996-06-27 1997-06-24 码分多址调制解调器的高效多信道滤波 Expired - Fee Related CN1117431C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/670,160 1996-06-27
US08/670,160 US6487190B1 (en) 1996-06-27 1996-06-27 Efficient multichannel filtering for CDMA modems

Publications (2)

Publication Number Publication Date
CN1223754A CN1223754A (zh) 1999-07-21
CN1117431C true CN1117431C (zh) 2003-08-06

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CN97195820A Expired - Fee Related CN1117431C (zh) 1996-06-27 1997-06-24 码分多址调制解调器的高效多信道滤波

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US (3) US6487190B1 (US06487190-20021126-M00004.png)
EP (3) EP1739832A3 (US06487190-20021126-M00004.png)
JP (1) JP3550598B2 (US06487190-20021126-M00004.png)
KR (1) KR100383266B1 (US06487190-20021126-M00004.png)
CN (1) CN1117431C (US06487190-20021126-M00004.png)
AT (2) ATE240611T1 (US06487190-20021126-M00004.png)
AU (1) AU3499697A (US06487190-20021126-M00004.png)
CA (2) CA2259261C (US06487190-20021126-M00004.png)
DE (3) DE69736444T2 (US06487190-20021126-M00004.png)
DK (1) DK0908008T3 (US06487190-20021126-M00004.png)
ES (2) ES2137908T3 (US06487190-20021126-M00004.png)
HK (2) HK1017175A1 (US06487190-20021126-M00004.png)
WO (1) WO1997050173A1 (US06487190-20021126-M00004.png)

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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
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
DK0908008T3 (da) 2003-09-15
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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