WO1998006230A2 - Method and apparatus for reliable intersystem handoff in a cdma system - Google Patents
Method and apparatus for reliable intersystem handoff in a cdma system Download PDFInfo
- Publication number
- WO1998006230A2 WO1998006230A2 PCT/US1997/013869 US9713869W WO9806230A2 WO 1998006230 A2 WO1998006230 A2 WO 1998006230A2 US 9713869 W US9713869 W US 9713869W WO 9806230 A2 WO9806230 A2 WO 9806230A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base station
- remote unit
- base stations
- switching center
- communication
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 49
- 238000004891 communication Methods 0.000 claims abstract description 128
- 230000007704 transition Effects 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims description 11
- 230000001413 cellular effect Effects 0.000 description 21
- 230000008569 process Effects 0.000 description 15
- 230000000875 corresponding effect Effects 0.000 description 8
- 238000001228 spectrum Methods 0.000 description 8
- 230000010267 cellular communication Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- VJYFKVYYMZPMAB-UHFFFAOYSA-N ethoprophos Chemical compound CCCSP(=O)(OCC)SCCC VJYFKVYYMZPMAB-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
-
- 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
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA99001238A MXPA99001238A (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system. |
NZ334024A NZ334024A (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system |
AU40540/97A AU718981B2 (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a CDMA system |
BR9711961-0A BR9711961A (en) | 1996-08-07 | 1997-08-06 | Method and equipment for transferring between reliable systems in a cdma system |
CA002262926A CA2262926C (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system |
EP97938147A EP0917809B1 (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system |
IL12832097A IL128320A (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system |
DE69735717T DE69735717T2 (en) | 1996-08-07 | 1997-08-06 | METHOD AND APPARATUS FOR RELIABILITY BETWEEN SYSTEMS IN A SYSTEM WITH CODE DISTRIBUTION MULTIPLEX ACCESS |
JP50821198A JP4567103B2 (en) | 1996-08-07 | 1997-08-06 | Reliable intersystem handoff method and apparatus in a CDMA system |
NO990555A NO990555L (en) | 1996-08-07 | 1999-02-05 | CDMA category network and suitable for reliable routing between multiple systems |
HK99105436A HK1020402A1 (en) | 1996-08-07 | 1999-11-24 | Method and apparatus for reliable intersystem handoff in a cdma system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US695,241 | 1996-08-07 | ||
US08/695,241 US5937019A (en) | 1996-08-07 | 1996-08-07 | Method and apparatus for reliable intersystem handoff in a CDMA system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998006230A2 true WO1998006230A2 (en) | 1998-02-12 |
WO1998006230A3 WO1998006230A3 (en) | 1998-03-26 |
Family
ID=24792206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/013869 WO1998006230A2 (en) | 1996-08-07 | 1997-08-06 | Method and apparatus for reliable intersystem handoff in a cdma system |
Country Status (18)
Country | Link |
---|---|
US (1) | US5937019A (en) |
EP (1) | EP0917809B1 (en) |
JP (1) | JP4567103B2 (en) |
KR (1) | KR100491519B1 (en) |
CN (1) | CN1098613C (en) |
AT (1) | ATE324016T1 (en) |
AU (1) | AU718981B2 (en) |
BR (1) | BR9711961A (en) |
CA (1) | CA2262926C (en) |
DE (1) | DE69735717T2 (en) |
HK (1) | HK1020402A1 (en) |
IL (1) | IL128320A (en) |
MX (1) | MXPA99001238A (en) |
NO (1) | NO990555L (en) |
NZ (1) | NZ334024A (en) |
PL (1) | PL331509A1 (en) |
RU (1) | RU2197792C2 (en) |
WO (1) | WO1998006230A2 (en) |
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US4973697A (en) * | 1989-04-18 | 1990-11-27 | Onoda Cement Co., Ltd. | 2-halopyridine-6-sulfonic acid and its salt |
WO2000030390A1 (en) * | 1998-11-17 | 2000-05-25 | Samsung Electronics Co., Ltd. | Dedicated control channel handoff in cdma communication system |
US7400642B2 (en) | 2003-08-29 | 2008-07-15 | Samsung Electronics Co., Ltd | Apparatus and method for controlling operational states of medium access control layer in a broadband wireless access communication system |
US7848305B2 (en) | 2005-02-03 | 2010-12-07 | Qualcomm Incorporated | Techniques for accessing a wireless communication system with tune-away capability |
US8509192B2 (en) | 2003-12-03 | 2013-08-13 | Qualcomm Incorporated | Methods and apparatuses for CDMA2000/GPRS roaming |
US8942706B2 (en) | 2005-08-30 | 2015-01-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Robust radio resource control signaling for HSDPA |
US9131464B2 (en) | 2007-10-30 | 2015-09-08 | Qualcomm Incorporated | Control arrangement and method for communicating paging messages in a wireless communication system |
US10271248B2 (en) | 2003-03-08 | 2019-04-23 | Samsung Electronics Co., Ltd | System and method for performing handover operation in broadband wireless access communication system |
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KR100211739B1 (en) * | 1997-05-21 | 1999-08-02 | 서평원 | Handoff control method using virtual cell border under the multi-frequency environment |
JP2990098B2 (en) * | 1997-05-21 | 1999-12-13 | 埼玉日本電気株式会社 | Terminal-driven mobile communication system |
KR100240451B1 (en) * | 1997-05-22 | 2000-01-15 | 서평원 | Reducing method of continuing hard handoff between base stations |
US6665281B1 (en) | 1997-11-06 | 2003-12-16 | Lg Information & Communications, Ltd. | Method and system for providing inter-frequency handoff in a telephone system |
KR100252932B1 (en) * | 1997-11-06 | 2000-04-15 | 서평원 | Method and System for Providing a Inter-frequency Handoff in a CDMA Cellular Telephone System |
FR2771583B1 (en) * | 1997-11-27 | 2004-09-24 | Alsthom Cge Alkatel | METHOD FOR COOPERATION BETWEEN ENTITIES OF A CELLULAR MOBILE RADIO COMMUNICATIONS NETWORK, DURING HANDOVER COMMUNICATION TRANSFERS |
US6603751B1 (en) * | 1998-02-13 | 2003-08-05 | Qualcomm Incorporated | Method and system for performing a handoff in a wireless communication system, such as a hard handoff |
FR2778303B1 (en) * | 1998-05-04 | 2000-06-02 | Alsthom Cge Alcatel | METHOD FOR TRANSFERRING A COMMUNICATION BETWEEN TWO RELAYS OF A CELL OF A CELLULAR DIGITAL RADIO-COMMUNICATION SYSTEM |
US6553064B1 (en) * | 1998-05-07 | 2003-04-22 | Qualcomm Incorporated | Method and apparatus for performing mobile station assisted hard handoff using error correction codes |
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US6560210B1 (en) * | 1998-06-10 | 2003-05-06 | Lucent Technologies Inc. | Handing off a wireless terminal in a wireless telecommunications system |
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US6768908B1 (en) * | 2000-04-07 | 2004-07-27 | Motorola, Inc. | Method and apparatus for soft handoff communications in a communication system operating according to IS-95B and IS-95C standards |
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US7911993B2 (en) | 2000-07-19 | 2011-03-22 | Ipr Licensing, Inc. | Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure |
US8537656B2 (en) * | 2000-07-19 | 2013-09-17 | Ipr Licensing, Inc. | Method for compensating for multi-path of a CDMA reverse link utilizing an orthogonal channel structure |
US7006428B2 (en) * | 2000-07-19 | 2006-02-28 | Ipr Licensing, Inc. | Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels |
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US8479189B2 (en) | 2000-11-17 | 2013-07-02 | Hewlett-Packard Development Company, L.P. | Pattern detection preprocessor in an electronic device update generation system |
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US20020071403A1 (en) * | 2000-12-07 | 2002-06-13 | Crowe M. Shane | Method and system for performing a CDMA soft handoff |
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US6664460B1 (en) * | 2001-01-05 | 2003-12-16 | Harman International Industries, Incorporated | System for customizing musical effects using digital signal processing techniques |
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US9451422B2 (en) | 2003-03-17 | 2016-09-20 | Nokia Technologies Oy | Method, system and network device for routing a message to a temporarily unavailable network user |
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US7904895B1 (en) | 2004-04-21 | 2011-03-08 | Hewlett-Packard Develpment Company, L.P. | Firmware update in electronic devices employing update agent in a flash memory card |
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Citations (3)
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US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
WO1996002117A2 (en) * | 1994-07-11 | 1996-01-25 | Nokia Telecommunications Oy | Handover method and cellular communications system |
WO1996012380A1 (en) * | 1994-10-16 | 1996-04-25 | Qualcomm Incorporated | Method and apparatus for handoff between different cellular communications systems |
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-
1996
- 1996-08-07 US US08/695,241 patent/US5937019A/en not_active Expired - Lifetime
-
1997
- 1997-08-06 RU RU99104598/09A patent/RU2197792C2/en not_active IP Right Cessation
- 1997-08-06 DE DE69735717T patent/DE69735717T2/en not_active Expired - Lifetime
- 1997-08-06 KR KR10-1999-7000970A patent/KR100491519B1/en not_active IP Right Cessation
- 1997-08-06 CN CN97197109A patent/CN1098613C/en not_active Expired - Fee Related
- 1997-08-06 AT AT97938147T patent/ATE324016T1/en not_active IP Right Cessation
- 1997-08-06 CA CA002262926A patent/CA2262926C/en not_active Expired - Fee Related
- 1997-08-06 AU AU40540/97A patent/AU718981B2/en not_active Ceased
- 1997-08-06 JP JP50821198A patent/JP4567103B2/en not_active Expired - Fee Related
- 1997-08-06 PL PL97331509A patent/PL331509A1/en unknown
- 1997-08-06 MX MXPA99001238A patent/MXPA99001238A/en not_active IP Right Cessation
- 1997-08-06 NZ NZ334024A patent/NZ334024A/en unknown
- 1997-08-06 BR BR9711961-0A patent/BR9711961A/en not_active Application Discontinuation
- 1997-08-06 EP EP97938147A patent/EP0917809B1/en not_active Expired - Lifetime
- 1997-08-06 IL IL12832097A patent/IL128320A/en not_active IP Right Cessation
- 1997-08-06 WO PCT/US1997/013869 patent/WO1998006230A2/en active IP Right Grant
-
1999
- 1999-02-05 NO NO990555A patent/NO990555L/en not_active Application Discontinuation
- 1999-11-24 HK HK99105436A patent/HK1020402A1/en not_active IP Right Cessation
Patent Citations (3)
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US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
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WO1996012380A1 (en) * | 1994-10-16 | 1996-04-25 | Qualcomm Incorporated | Method and apparatus for handoff between different cellular communications systems |
Non-Patent Citations (2)
Title |
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HOLCMAN A R ET AL: "CDMA INTERSYSTEM OPERATIONS" PROCEEDINGS OF THE VEHICULAR TECHNOLOGY CONFERENCE, STOCKHOLM, JUNE 8 - 10, 1994, vol. 1, 8 June 1994, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 590-594, XP000496745 * |
See also references of EP0917809A2 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4973697A (en) * | 1989-04-18 | 1990-11-27 | Onoda Cement Co., Ltd. | 2-halopyridine-6-sulfonic acid and its salt |
WO2000030390A1 (en) * | 1998-11-17 | 2000-05-25 | Samsung Electronics Co., Ltd. | Dedicated control channel handoff in cdma communication system |
AU753880B2 (en) * | 1998-11-17 | 2002-10-31 | Samsung Electronics Co., Ltd. | Dedicated control channel handoff in CDMA communication system |
KR100547838B1 (en) * | 1998-11-17 | 2006-03-23 | 삼성전자주식회사 | Handoff Method of Dedicated Control Channel in Code Division Multiple Access Communication System |
US10271248B2 (en) | 2003-03-08 | 2019-04-23 | Samsung Electronics Co., Ltd | System and method for performing handover operation in broadband wireless access communication system |
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Also Published As
Publication number | Publication date |
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RU2197792C2 (en) | 2003-01-27 |
MXPA99001238A (en) | 2003-08-08 |
AU718981B2 (en) | 2000-05-04 |
KR20000029825A (en) | 2000-05-25 |
US5937019A (en) | 1999-08-10 |
ATE324016T1 (en) | 2006-05-15 |
CN1098613C (en) | 2003-01-08 |
NO990555L (en) | 1999-03-25 |
AU4054097A (en) | 1998-02-25 |
WO1998006230A3 (en) | 1998-03-26 |
JP2000515705A (en) | 2000-11-21 |
EP0917809A2 (en) | 1999-05-26 |
IL128320A0 (en) | 2000-01-31 |
CA2262926C (en) | 2008-12-23 |
JP4567103B2 (en) | 2010-10-20 |
PL331509A1 (en) | 1999-07-19 |
NO990555D0 (en) | 1999-02-05 |
KR100491519B1 (en) | 2005-05-27 |
DE69735717D1 (en) | 2006-05-24 |
HK1020402A1 (en) | 2000-04-14 |
EP0917809B1 (en) | 2006-04-19 |
DE69735717T2 (en) | 2007-03-08 |
CA2262926A1 (en) | 1998-02-12 |
NZ334024A (en) | 1999-04-29 |
IL128320A (en) | 2005-11-20 |
CN1227699A (en) | 1999-09-01 |
BR9711961A (en) | 2002-01-02 |
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