JP3550598B2 - Ｃｄｍａモデム用の効率的な多チャンネル濾波 - Google Patents

Ｃｄｍａモデム用の効率的な多チャンネル濾波 Download PDF

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JP3550598B2
JP3550598B2 JP50345398A JP50345398A JP3550598B2 JP 3550598 B2 JP3550598 B2 JP 3550598B2 JP 50345398 A JP50345398 A JP 50345398A JP 50345398 A JP50345398 A JP 50345398A JP 3550598 B2 JP3550598 B2 JP 3550598B2
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filter
output
memory
adder
channel
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JPH11513213A (ja
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レジス、ロバート・ティー
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インターデイジタル テクノロジー コーポレーション
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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
JP50345398A 1996-06-27 1997-06-24 Ｃｄｍａモデム用の効率的な多チャンネル濾波 Expired - Fee Related JP3550598B2 (ja)

Applications Claiming Priority (3)

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
PCT/US1997/010909 WO1997050173A1 (en) 1996-06-27 1997-06-24 Efficient multichannel filtering for cdma modems

Publications (2)

Publication Number Publication Date
JPH11513213A JPH11513213A (ja) 1999-11-09
JP3550598B2 true JP3550598B2 (ja) 2004-08-04

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JP50345398A Expired - Fee Related JP3550598B2 (ja) 1996-06-27 1997-06-24 Ｃｄｍａモデム用の効率的な多チャンネル濾波

Country Status (13)

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US (3) US6487190B1 (US06487190-20021126-M00005.png)
EP (3) EP1337040B1 (US06487190-20021126-M00005.png)
JP (1) JP3550598B2 (US06487190-20021126-M00005.png)
KR (1) KR100383266B1 (US06487190-20021126-M00005.png)
CN (1) CN1117431C (US06487190-20021126-M00005.png)
AT (2) ATE335304T1 (US06487190-20021126-M00005.png)
AU (1) AU3499697A (US06487190-20021126-M00005.png)
CA (2) CA2259261C (US06487190-20021126-M00005.png)
DE (3) DE69721991T2 (US06487190-20021126-M00005.png)
DK (1) DK0908008T3 (US06487190-20021126-M00005.png)
ES (2) ES2268207T3 (US06487190-20021126-M00005.png)
HK (2) HK1017175A1 (US06487190-20021126-M00005.png)
WO (1) WO1997050173A1 (US06487190-20021126-M00005.png)

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Also Published As

Publication number Publication date
DE69736444T2 (de) 2007-08-02
CA2259261A1 (en) 1997-12-31
DK0908008T3 (da) 2003-09-15
EP1337040B1 (en) 2006-08-02
ES2137908T3 (es) 2004-02-16
HK1059992A1 (en) 2004-07-23
CN1117431C (zh) 2003-08-06
DE69721991D1 (de) 2003-06-18
ES2137908T1 (es) 2000-01-01
US6487190B1 (en) 2002-11-26
DE908008T1 (de) 1999-10-21
EP1739832A2 (en) 2007-01-03
JPH11513213A (ja) 1999-11-09
CN1223754A (zh) 1999-07-21
CA2259261C (en) 2003-10-21
AU3499697A (en) 1998-01-14
ATE335304T1 (de) 2006-08-15
EP0908008B1 (en) 2003-05-14
KR100383266B1 (ko) 2003-08-25
HK1017175A1 (en) 1999-11-12
US7631027B2 (en) 2009-12-08
DE69721991T2 (de) 2004-05-19
CA2434522A1 (en) 1997-12-31
KR20000022282A (ko) 2000-04-25
ATE240611T1 (de) 2003-05-15
US6907024B2 (en) 2005-06-14
US20050223049A1 (en) 2005-10-06
ES2268207T3 (es) 2007-03-16
EP1337040A1 (en) 2003-08-20
EP0908008A1 (en) 1999-04-14
DE69736444D1 (de) 2006-09-14
WO1997050173A1 (en) 1997-12-31
US20030099284A1 (en) 2003-05-29
EP1739832A3 (en) 2007-12-26

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