FI115429B - RAKE-mottagare och fingerstyrförfarande vid spridspektrumskommunikation - Google Patents
RAKE-mottagare och fingerstyrförfarande vid spridspektrumskommunikation Download PDFInfo
- Publication number
- FI115429B FI115429B FI981939A FI981939A FI115429B FI 115429 B FI115429 B FI 115429B FI 981939 A FI981939 A FI 981939A FI 981939 A FI981939 A FI 981939A FI 115429 B FI115429 B FI 115429B
- Authority
- FI
- Finland
- Prior art keywords
- finger
- timing
- signal
- fingers
- time
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
-
- 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
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
-
- 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
- H04B1/7113—Determination of path profile
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Communication Control (AREA)
Claims (5)
1. Förfarande för styrning av en RAKE-mottagares (112) fingrar (122, 124, 126, 128), vilket förfarande inne-häller följande steg: 5. ett första finger hos RAKE-mottagaren mottas en första signal och en första fingertidsinställning varieras i enlighet med den första signalens tidsinställnings- variationer; i ett andra finger hos RAKE-mottagaren mottas en andra 10 signal och en andra fingertidsinställning varieras i enlighet med den andra signalens tidsinställnings- variationer; skillnaden mellan det första fingrets tidsinställning och det andra fingrets tidsinställning bestäms (200, 500); 15 och t tidsskillnaden bibehälls (210, 600) större än ett • tröskelvärde, . : kännetecknat av att \ bibehallandet av tidsskillnaden innehäller: : 20 bestämning (200, 500) av en regleringsposition för det * 1 # första fingret; 4 » 28 115429 bestämning (206, 606) av tidsskillnaden mellan det första fingrets regleringsposition och det andra fingrets position; och regiering (210, 506) av det första fingrets tids- 5 inställning tili det första fingrets regleringsposition endast dä tidsskillnaden överskrider tröskelvärdet.
2. Förfarande i enlighet med patentkrav 1, kanne-tecknat av att bibehällandet av tidsskillnaden innehäller en bestämning av tidsskillnadens storlek och 10 en bestämning av det andra fingrets position i för-hällande tili det första fingrets regleringsposition, och vilket förfarande vidare innehäller följande steg: förhindrande (614) av en regiering, som tidigarelägger tidsinställningen, om tidsskillnadens storlek är mindre 15 än tröskelvärdet och det andra fingrets position ligger tidigare än fingrets regleringsposition, och förhindrande (616) av en regiering, som senarelägger tidsinställningen, om tidsskillnadens storlek är mindre än tröskelvärdet och det andra fingrets position ligger 20 senare än fingrets regleringsposition.
' * 3. Förfarande i enlighet med patentkrav 1, kanne- t e c k n a t av att bibehällandet av tidsskillnaden : j innehäller en koordinerat styrd spärning (316) av det .· första fingrets tidsinställning och det andra fingrets 25 tidsinställning pä sä sätt, att det första och andra fingret inte konvergerar mot varandra. 115429 j 29
4. Förfarande i enlighet med patentkrav 3, kanne-tecknat av att den koordinerat styrda sparningen (316) innehäller en förändring av det första fingrets tidsinställning för att spära den första signalens 5 tidsinställningsvariation och en läsning av det andra j fingrets tidsinställning pä ett förutbestämt tids- skillnadsavstand frän det första fingrets tidsinställning.
5. Förfarande i enlighet med patentkrav 1, k ä n n e -10 tecknat av att tröskelvärdet bildas väsentligen av en underbits tidsintervall. * * · « » » · > * » · » ' » > » » »
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/931,149 US6078611A (en) | 1997-09-16 | 1997-09-16 | Rake receiver and finger management method for spread spectrum communication |
US93114997 | 1997-09-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI981939A0 FI981939A0 (sv) | 1998-09-09 |
FI981939A FI981939A (sv) | 1999-03-17 |
FI115429B true FI115429B (sv) | 2005-04-29 |
Family
ID=25460296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI981939A FI115429B (sv) | 1997-09-16 | 1998-09-09 | RAKE-mottagare och fingerstyrförfarande vid spridspektrumskommunikation |
Country Status (14)
Country | Link |
---|---|
US (1) | US6078611A (sv) |
JP (1) | JP4064545B2 (sv) |
KR (1) | KR100276532B1 (sv) |
CN (1) | CN1146121C (sv) |
AU (1) | AU735531B2 (sv) |
BR (1) | BR9803430B1 (sv) |
CA (1) | CA2244602C (sv) |
DE (1) | DE19841148A1 (sv) |
FI (1) | FI115429B (sv) |
FR (1) | FR2768576B1 (sv) |
GB (1) | GB2331901B (sv) |
IT (1) | IT1302324B1 (sv) |
RU (1) | RU2142673C1 (sv) |
SE (1) | SE520761C2 (sv) |
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1997
- 1997-09-16 US US08/931,149 patent/US6078611A/en not_active Expired - Lifetime
-
1998
- 1998-07-31 AU AU78617/98A patent/AU735531B2/en not_active Ceased
- 1998-08-05 CA CA002244602A patent/CA2244602C/en not_active Expired - Fee Related
- 1998-08-06 FR FR9810128A patent/FR2768576B1/fr not_active Expired - Fee Related
- 1998-09-09 FI FI981939A patent/FI115429B/sv not_active IP Right Cessation
- 1998-09-09 DE DE19841148A patent/DE19841148A1/de not_active Ceased
- 1998-09-10 JP JP27432698A patent/JP4064545B2/ja not_active Expired - Lifetime
- 1998-09-11 GB GB9819707A patent/GB2331901B/en not_active Expired - Fee Related
- 1998-09-11 BR BRPI9803430-8B1A patent/BR9803430B1/pt not_active IP Right Cessation
- 1998-09-11 IT IT1998RM000585A patent/IT1302324B1/it active IP Right Grant
- 1998-09-14 CN CNB981192505A patent/CN1146121C/zh not_active Expired - Fee Related
- 1998-09-15 KR KR1019980037988A patent/KR100276532B1/ko not_active IP Right Cessation
- 1998-09-15 RU RU98117443A patent/RU2142673C1/ru not_active IP Right Cessation
- 1998-09-16 SE SE9803142A patent/SE520761C2/sv unknown
Also Published As
Publication number | Publication date |
---|---|
JPH11168448A (ja) | 1999-06-22 |
RU2142673C1 (ru) | 1999-12-10 |
GB2331901B (en) | 2000-10-04 |
US6078611A (en) | 2000-06-20 |
CA2244602C (en) | 2002-01-15 |
BR9803430B1 (pt) | 2013-12-17 |
CN1146121C (zh) | 2004-04-14 |
AU735531B2 (en) | 2001-07-12 |
GB2331901A (en) | 1999-06-02 |
BR9803430A (pt) | 1999-11-03 |
CN1216420A (zh) | 1999-05-12 |
FR2768576B1 (fr) | 2004-10-29 |
CA2244602A1 (en) | 1999-03-16 |
GB9819707D0 (en) | 1998-11-04 |
FR2768576A1 (fr) | 1999-03-19 |
JP4064545B2 (ja) | 2008-03-19 |
KR19990029806A (ko) | 1999-04-26 |
SE9803142D0 (sv) | 1998-09-16 |
FI981939A (sv) | 1999-03-17 |
FI981939A0 (sv) | 1998-09-09 |
KR100276532B1 (ko) | 2000-12-15 |
SE520761C2 (sv) | 2003-08-19 |
ITRM980585A1 (it) | 2000-03-11 |
ITRM980585A0 (it) | 1998-09-11 |
IT1302324B1 (it) | 2000-09-05 |
SE9803142L (sv) | 1999-03-17 |
AU7861798A (en) | 1999-04-01 |
DE19841148A1 (de) | 1999-04-01 |
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