WO2000038456A1 - Methods and systems for dynamic threshold adjustment for handoffs in radio communication systems - Google Patents
Methods and systems for dynamic threshold adjustment for handoffs in radio communication systems Download PDFInfo
- Publication number
- WO2000038456A1 WO2000038456A1 PCT/EP1999/010085 EP9910085W WO0038456A1 WO 2000038456 A1 WO2000038456 A1 WO 2000038456A1 EP 9910085 W EP9910085 W EP 9910085W WO 0038456 A1 WO0038456 A1 WO 0038456A1
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- WO
- WIPO (PCT)
- Prior art keywords
- threshold
- active set
- transmission source
- quality level
- determining
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004891 communication Methods 0.000 title description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 230000003044 adaptive effect Effects 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims description 22
- 238000011156 evaluation Methods 0.000 claims description 2
- 238000012885 constant function Methods 0.000 claims 14
- 230000008901 benefit Effects 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000010267 cellular communication Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101150071111 FADD gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010915 one-step procedure Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/461,029 US6754493B1 (en) | 1998-12-18 | 1999-12-15 | Method and systems for dynamic threshold adjustment for handoffs in radio communication systems |
DE69930302T DE69930302D1 (en) | 1998-12-18 | 1999-12-17 | METHOD AND SYSTEMS FOR DYNAMIC THRESHOLD ADJUSTMENT FOR FOLLOWING IN RADIO TRANSMISSION SYSTEMS |
JP2000590412A JP2003525533A (en) | 1998-12-18 | 1999-12-17 | Method and system for dynamic threshold adjustment of handoff in a wireless communication system |
EP99964601A EP1145586B1 (en) | 1998-12-18 | 1999-12-17 | Methods and systems for dynamic threshold adjustment for handoffs in radio communication systems |
AU30397/00A AU3039700A (en) | 1998-12-18 | 1999-12-17 | Methods and systems for dynamic threshold adjustment for handoffs in radio communication systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IBPCT/IB98/02076 | 1998-12-18 | ||
IB9802076 | 1998-12-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000038456A1 true WO2000038456A1 (en) | 2000-06-29 |
Family
ID=11004799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/010085 WO2000038456A1 (en) | 1998-12-18 | 1999-12-17 | Methods and systems for dynamic threshold adjustment for handoffs in radio communication systems |
Country Status (8)
Country | Link |
---|---|
US (2) | US6539227B1 (en) |
EP (1) | EP1145586B1 (en) |
JP (1) | JP2003525533A (en) |
CN (1) | CN1171493C (en) |
AT (1) | ATE320153T1 (en) |
AU (1) | AU3039700A (en) |
MY (1) | MY120833A (en) |
WO (1) | WO2000038456A1 (en) |
Cited By (21)
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WO2003005753A1 (en) * | 2001-07-05 | 2003-01-16 | Nortel Networks Limited | Method for controlling radio resources assigned to a communication between a mobile terminal and a spread spectrum cellular infrastructure and equipment therefor |
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US7107051B1 (en) * | 2000-09-28 | 2006-09-12 | Intel Corporation | Technique to establish wireless session keys suitable for roaming |
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US20030060200A1 (en) * | 2001-09-27 | 2003-03-27 | Soliman Samir S. | Handoff method and apparatus with dual pilots in a communication system |
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1999
- 1999-12-15 US US09/461,030 patent/US6539227B1/en not_active Expired - Lifetime
- 1999-12-15 US US09/461,029 patent/US6754493B1/en not_active Expired - Lifetime
- 1999-12-17 JP JP2000590412A patent/JP2003525533A/en active Pending
- 1999-12-17 AT AT99964601T patent/ATE320153T1/en not_active IP Right Cessation
- 1999-12-17 EP EP99964601A patent/EP1145586B1/en not_active Expired - Lifetime
- 1999-12-17 AU AU30397/00A patent/AU3039700A/en not_active Abandoned
- 1999-12-17 CN CNB998146668A patent/CN1171493C/en not_active Expired - Fee Related
- 1999-12-17 WO PCT/EP1999/010085 patent/WO2000038456A1/en active IP Right Grant
- 1999-12-17 MY MYPI99005541A patent/MY120833A/en unknown
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Also Published As
Publication number | Publication date |
---|---|
JP2003525533A (en) | 2003-08-26 |
EP1145586A1 (en) | 2001-10-17 |
CN1171493C (en) | 2004-10-13 |
CN1352866A (en) | 2002-06-05 |
EP1145586B1 (en) | 2006-03-08 |
ATE320153T1 (en) | 2006-03-15 |
US6539227B1 (en) | 2003-03-25 |
US6754493B1 (en) | 2004-06-22 |
AU3039700A (en) | 2000-07-12 |
MY120833A (en) | 2005-11-30 |
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