WO2004046893A3 - Soft handoff of a cdma reverse link - Google Patents

Soft handoff of a cdma reverse link Download PDF

Info

Publication number
WO2004046893A3
WO2004046893A3 PCT/US2003/037272 US0337272W WO2004046893A3 WO 2004046893 A3 WO2004046893 A3 WO 2004046893A3 US 0337272 W US0337272 W US 0337272W WO 2004046893 A3 WO2004046893 A3 WO 2004046893A3
Authority
WO
WIPO (PCT)
Prior art keywords
base station
timing
reverse link
soft handoff
subscriber unit
Prior art date
Application number
PCT/US2003/037272
Other languages
French (fr)
Other versions
WO2004046893A2 (en
Inventor
James A Proctor Jr
Original Assignee
Ipr Licensing Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ipr Licensing Inc filed Critical Ipr Licensing Inc
Priority to CN200380103601.5A priority Critical patent/CN1714516B/en
Priority to JP2004554010A priority patent/JP2006506917A/en
Priority to KR1020077010738A priority patent/KR101047967B1/en
Priority to MXPA05005395A priority patent/MXPA05005395A/en
Priority to AU2003294428A priority patent/AU2003294428A1/en
Priority to EP03789911A priority patent/EP1565995A4/en
Priority to CA002506754A priority patent/CA2506754A1/en
Publication of WO2004046893A2 publication Critical patent/WO2004046893A2/en
Publication of WO2004046893A3 publication Critical patent/WO2004046893A3/en
Priority to NO20052945A priority patent/NO338063B1/en
Priority to NO20160875A priority patent/NO342812B1/en

Links

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
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/002—Mutual synchronization
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time

Abstract

Method and apparatus for base stations (218) and subscriber units (213) allows soft handoff of a CDMA reverse link utilizing an orthogonal channel structure. Subscriber units transmit an orthogonally coded signal over a reverse link to the base stations. A given base station provides timing control (510) of the timing offset of the reverse link signal. Based on at least one criterion, an alignment controller (515) determines that the given base station should hand off timing control to another base station, and a soft handoff process ensues. In response to a command or message for soft handoff of the subscriber unit from the given base station to another base station, the subscriber unit makes a coarse timing adjustment to the timing of the coded signal. The subscriber unit may make fine timing adjustments based on feedback from the base station controlling timing. Multiple base stations may provide power control feedback to the subscriber unit.
PCT/US2003/037272 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link WO2004046893A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
CN200380103601.5A CN1714516B (en) 2002-11-20 2003-11-20 Soft handoff of a CDMA reverse link
JP2004554010A JP2006506917A (en) 2002-11-20 2003-11-20 Wireless communication system, apparatus and method for aligning link signals or link channels
KR1020077010738A KR101047967B1 (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link
MXPA05005395A MXPA05005395A (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link.
AU2003294428A AU2003294428A1 (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link
EP03789911A EP1565995A4 (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link
CA002506754A CA2506754A1 (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link
NO20052945A NO338063B1 (en) 2002-11-20 2005-06-16 Soft handover of a CDMA reverse connection
NO20160875A NO342812B1 (en) 2002-11-20 2016-05-24 Soft handover of a CDMA reverse compound

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42784702P 2002-11-20 2002-11-20
US60/427,847 2002-11-20

Publications (2)

Publication Number Publication Date
WO2004046893A2 WO2004046893A2 (en) 2004-06-03
WO2004046893A3 true WO2004046893A3 (en) 2004-10-28

Family

ID=32326600

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/037272 WO2004046893A2 (en) 2002-11-20 2003-11-20 Soft handoff of a cdma reverse link

Country Status (10)

Country Link
EP (1) EP1565995A4 (en)
JP (1) JP2006506917A (en)
KR (2) KR101019460B1 (en)
CN (1) CN1714516B (en)
AU (1) AU2003294428A1 (en)
CA (1) CA2506754A1 (en)
MX (1) MXPA05005395A (en)
NO (2) NO338063B1 (en)
TW (4) TWI539762B (en)
WO (1) WO2004046893A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9456428B2 (en) 2000-07-19 2016-09-27 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6917581B2 (en) 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link
US7821995B2 (en) * 2004-09-30 2010-10-26 Alcatel-Lucent Usa Inc. Active session mobility solution for radio link protocol
KR101267406B1 (en) 2008-08-20 2013-06-04 퀄컴 인코포레이티드 Multiple-frame offset between neighbor cells to enhance the geran signaling performance when power control for signaling is in use
FR2942097A1 (en) * 2009-02-06 2010-08-13 Thomson Licensing TRANSMITTING METHOD IN A WIRELESS NETWORK AND CORRESPONDING RECEIVING METHOD
EP2430869B1 (en) 2009-05-11 2013-11-06 QUALCOMM Incorporated Time shifting of co-channel data transmissions to reduce co-channel interference
JP5479553B2 (en) * 2012-09-20 2014-04-23 京セラ株式会社 COMMUNICATION METHOD AND TERMINAL DEVICE USING THE SAME

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5937019A (en) * 1996-08-07 1999-08-10 Qualcomm Incorporated Method and apparatus for reliable intersystem handoff in a CDMA system
US20020071384A1 (en) * 2000-10-27 2002-06-13 Hall Eric K. Hybrid synchronous space/code multiple access system using an adaptive antenna system
US6470001B1 (en) * 1998-02-14 2002-10-22 Samsung Electronics, Co., Ltd. Device and method for time alignment on reverse link in mobile communication system

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US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
JP2677191B2 (en) * 1994-03-15 1997-11-17 日本電気株式会社 CDMA communication system
ZA955605B (en) * 1994-07-13 1996-04-10 Qualcomm Inc System and method for simulating user interference received by subscriber units in a spread spectrum communication network
US5691974A (en) * 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
JPH1013918A (en) * 1996-06-19 1998-01-16 Toshiba Corp Moving communication system, adapting code division multiple access system, and its radio communication device
JPH1022874A (en) * 1996-07-09 1998-01-23 Hitachi Ltd Cdma communication system and method therefor
JPH1028077A (en) * 1996-07-11 1998-01-27 Takuro Sato Communication equipment
US5956641A (en) * 1998-03-30 1999-09-21 Motorola, Inc. System and method for facilitating a handoff of at least one mobile unit in a telecommunication system
JP2000278759A (en) * 1999-03-26 2000-10-06 Oki Electric Ind Co Ltd Transmission timing controller
JP2000286784A (en) * 1999-03-31 2000-10-13 Oki Electric Ind Co Ltd Radio terminal, radio base station and radio communication system
ATE213897T1 (en) * 1999-04-30 2002-03-15 Cit Alcatel SOFT HANDOVER METHOD FOR CDMA USING RETURN CHANNEL MEASUREMENT DATA
JP2001016159A (en) * 1999-06-28 2001-01-19 Fujitsu Ltd Base station and mobile station
US8099122B1 (en) * 2000-06-05 2012-01-17 Qualcomm Incorporated Method and apparatus for improved forward link power control while in soft handoff
KR100419409B1 (en) * 2000-06-24 2004-02-19 삼성전자주식회사 Apparatus and method for synchronization of uplink synchronous transmission scheme in cdma communication system
US7006428B2 (en) * 2000-07-19 2006-02-28 Ipr Licensing, Inc. Method for allowing multi-user orthogonal and non-orthogonal interoperability of code channels
JP4825372B2 (en) * 2000-08-09 2011-11-30 エスケーテレコム株式会社 Handover method in wireless communication system supporting reverse synchronization transmission system
US6930470B2 (en) * 2001-03-01 2005-08-16 Nortel Networks Limited System and method for code division multiple access communication in a wireless communication environment
US6917581B2 (en) * 2001-07-17 2005-07-12 Ipr Licensing, Inc. Use of orthogonal or near orthogonal codes in reverse link

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5101501A (en) * 1989-11-07 1992-03-31 Qualcomm Incorporated Method and system for providing a soft handoff in communications in a cdma cellular telephone system
US5937019A (en) * 1996-08-07 1999-08-10 Qualcomm Incorporated Method and apparatus for reliable intersystem handoff in a CDMA system
US6470001B1 (en) * 1998-02-14 2002-10-22 Samsung Electronics, Co., Ltd. Device and method for time alignment on reverse link in mobile communication system
US20020071384A1 (en) * 2000-10-27 2002-06-13 Hall Eric K. Hybrid synchronous space/code multiple access system using an adaptive antenna system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9456428B2 (en) 2000-07-19 2016-09-27 Ipr Licensing, Inc. Method and apparatus for allowing soft handoff of a CDMA reverse link utilizing an orthogonal channel structure

Also Published As

Publication number Publication date
TW201206095A (en) 2012-02-01
EP1565995A2 (en) 2005-08-24
KR20070055642A (en) 2007-05-30
NO342812B1 (en) 2018-08-13
CN1714516B (en) 2011-06-08
TWI357730B (en) 2012-02-01
AU2003294428A1 (en) 2004-06-15
AU2003294428A8 (en) 2004-06-15
TWI539762B (en) 2016-06-21
TW200419952A (en) 2004-10-01
TW201521368A (en) 2015-06-01
TWI470946B (en) 2015-01-21
MXPA05005395A (en) 2005-11-23
JP2006506917A (en) 2006-02-23
KR20050085092A (en) 2005-08-29
NO20160875A1 (en) 2005-08-17
CN1714516A (en) 2005-12-28
WO2004046893A2 (en) 2004-06-03
NO20052945D0 (en) 2005-06-16
KR101047967B1 (en) 2011-07-12
CA2506754A1 (en) 2004-06-03
NO20052945L (en) 2005-08-17
TWI364920B (en) 2012-05-21
TW200824320A (en) 2008-06-01
KR101019460B1 (en) 2011-03-07
EP1565995A4 (en) 2006-12-06
NO338063B1 (en) 2016-07-25

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