KR100525979B1 - 심리스 핸드-오프 시스템과 방법 - Google Patents

심리스 핸드-오프 시스템과 방법 Download PDF

Info

Publication number
KR100525979B1
KR100525979B1 KR10-1999-7004120A KR19997004120A KR100525979B1 KR 100525979 B1 KR100525979 B1 KR 100525979B1 KR 19997004120 A KR19997004120 A KR 19997004120A KR 100525979 B1 KR100525979 B1 KR 100525979B1
Authority
KR
South Korea
Prior art keywords
base station
candidate base
mobile subscriber
subscriber unit
global
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
KR10-1999-7004120A
Other languages
English (en)
Korean (ko)
Other versions
KR20000068941A (ko
Inventor
오즈루투럭패신엠
Original Assignee
인터디지탈 테크날러지 코포레이션
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 인터디지탈 테크날러지 코포레이션 filed Critical 인터디지탈 테크날러지 코포레이션
Publication of KR20000068941A publication Critical patent/KR20000068941A/ko
Application granted granted Critical
Publication of KR100525979B1 publication Critical patent/KR100525979B1/ko
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [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
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/20—Performing reselection for specific purposes for optimising the interference level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Vehicle Body Suspensions (AREA)
  • Processing Of Solid Wastes (AREA)
KR10-1999-7004120A 1997-10-09 1998-10-06 심리스 핸드-오프 시스템과 방법 Expired - Fee Related KR100525979B1 (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/947,719 1997-10-09
US8/947,719 1997-10-09
US08/947,719 US5960347A (en) 1997-10-09 1997-10-09 Seamless handoff system and method
PCT/US1998/020978 WO1999020072A1 (en) 1997-10-09 1998-10-06 Seamless handoff system and method

Publications (2)

Publication Number Publication Date
KR20000068941A KR20000068941A (ko) 2000-11-25
KR100525979B1 true KR100525979B1 (ko) 2005-11-08

Family

ID=25486641

Family Applications (1)

Application Number Title Priority Date Filing Date
KR10-1999-7004120A Expired - Fee Related KR100525979B1 (ko) 1997-10-09 1998-10-06 심리스 핸드-오프 시스템과 방법

Country Status (12)

Country Link
US (2) US5960347A (https=)
EP (3) EP1487231B1 (https=)
JP (2) JP4027995B2 (https=)
KR (1) KR100525979B1 (https=)
CN (5) CN1909729B (https=)
AT (3) ATE277485T1 (https=)
AU (1) AU9786998A (https=)
CA (2) CA2593776C (https=)
DE (3) DE69839457D1 (https=)
DK (3) DK1928203T3 (https=)
ES (2) ES2138578T3 (https=)
WO (1) WO1999020072A1 (https=)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035196A (en) * 1997-08-25 2000-03-07 The Whitaker Corporation Automatic cell transfer based on reverse channel characteristics
US6421328B1 (en) * 1997-09-04 2002-07-16 Northern Telecom Limited Neighborhood list assimilation for cell-based microsystem
AU6497698A (en) * 1998-02-16 1999-08-30 Nokia Telecommunications Oy Method and system for performing handover in a mobile communication system
JP3956479B2 (ja) * 1998-04-27 2007-08-08 ソニー株式会社 移動通信システム、移動局及び基地局
US6216002B1 (en) * 1998-05-11 2001-04-10 Ericsson Inc. Method for selecting base transceiver stations for gathering data to determine a mobile station's location in a wireless network
US6381458B1 (en) * 1998-05-15 2002-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for soft handoff control based on access network capacity
JP4131052B2 (ja) 1998-07-17 2008-08-13 ソニー株式会社 撮像装置
US6327469B1 (en) * 1998-12-11 2001-12-04 Motorola, Inc. Channel scanning method and apparatus
US6148208A (en) * 1998-12-21 2000-11-14 Motorola, Inc. Power control within a broad-band communication system
ES2173717T3 (es) * 1999-04-30 2002-10-16 Cit Alcatel Metodo de entrega suave en cdma utilizando mediciones de enlace ascendente.
US6882631B1 (en) * 1999-09-13 2005-04-19 Qualcomm Incorporated Method and apparatus for overlaying two CDMA systems on the same frequency bandwidth
FI109512B (fi) * 1999-09-20 2002-08-15 Nokia Corp Menetelmä ehdokassolun määrittämiseksi aktiivijoukkoon
DE60028179T2 (de) * 2000-03-14 2007-03-15 Lucent Technologies Inc. Vefahren und Mobilfunknetz zum Minimieren der RACH-Sendeleistung
US6725050B1 (en) * 2000-05-25 2004-04-20 Sprint Communications Company L.P. Wireless communication system for an enterprise
US6816732B1 (en) * 2000-07-27 2004-11-09 Ipr Licensing, Inc. Optimal load-based wireless session context transfer
US7054631B2 (en) * 2000-10-23 2006-05-30 Denso Corporation Enhancement of soft handoff in a mobile wireless network through the use of dynamic information feedback from mobile users
CA2436655A1 (en) * 2000-12-05 2002-06-13 Qualcomm Incorporated Method and apparatus for power level adjustment in a wireless communication system
US7010318B2 (en) * 2001-01-13 2006-03-07 Samsung Electronics Co., Ltd. Power control apparatus and method for a W-CDMA communication system employing a high-speed downlink packet access scheme
CN100468986C (zh) * 2001-07-24 2009-03-11 株式会社Ntt都科摩 移动通信系统发送功率控制装置与方法以及移动台与通信装置
EP1452054B1 (en) 2001-12-07 2006-06-21 Research In Motion Limited Access to a wireless network based on a link cost metric
US6725044B2 (en) * 2002-08-15 2004-04-20 Thomson Licensing S.A. Technique seamless handoff of a mobile terminal user from a wireless telephony network to a wireless LAN
US7085570B2 (en) * 2002-12-23 2006-08-01 Nokia Corporation Handover method, system and radio network controller
US7215959B2 (en) * 2003-12-15 2007-05-08 International Business Machines Corporation Cellular to 802.11 voice roaming utilizing SIP signaling
EP2229024A1 (en) * 2005-12-27 2010-09-15 Fujitsu Limited Mobile control device and handover control method
JP4882670B2 (ja) * 2006-11-01 2012-02-22 日本電気株式会社 移動通信システム、基地局装置及びそれらに用いるハンドオーバ方法
CN101971538B (zh) * 2007-11-06 2014-05-07 爱立信电话股份有限公司 无线通信网络中扩展的小区范围
JP5227040B2 (ja) * 2008-01-29 2013-07-03 京セラ株式会社 無線通信装置
CN101321393B (zh) * 2008-07-03 2011-03-30 清华大学 一种无缝越区切换方法和系统
KR101611168B1 (ko) * 2008-10-09 2016-04-12 삼성전자주식회사 파일 다운로드 또는 스트리밍 과정에서 핸드오버 또는 로밍을 위한 장치 및 방법
US20110021197A1 (en) * 2009-07-24 2011-01-27 Qualcomm Incorporated Apparatus and method for facilitating transfer to a secondary cell

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613990A (en) * 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control
US5257402A (en) * 1991-03-28 1993-10-26 Motorola, Inc. Method for effecting handoff in a multi-site communication system
US5267261A (en) * 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
EP0565507A3 (en) * 1992-04-10 1994-11-30 Ericsson Ge Mobile Communicat Power control for random access call set-up in a mobile telephone system
US5367559A (en) * 1992-05-11 1994-11-22 Hughes Aircraft Company Sequential power estimation for cellular system handoff
US5329635A (en) * 1992-05-12 1994-07-12 Motorola, Inc. Seamless handoff for radio telephone systems
KR0146209B1 (ko) * 1992-08-25 1998-08-17 존 에이치. 무어 무선 통신 시스템에서의 채널 전환 수행 장치
DE69423810T2 (de) * 1993-05-12 2000-10-12 Ntt Mobile Communications Network Inc., Tokio/Tokyo Verfahren zum Weiterreichen und Mobilstation für Spreizspektrum Kommunikationssystem
US5444766A (en) * 1993-10-01 1995-08-22 At&T Corp. Mobile-synchronized handoff in a wireless communications system
US5491717A (en) * 1993-10-18 1996-02-13 Motorola, Inc. Method for controlling transmission during handoff in a communication system
US5491837A (en) * 1994-03-07 1996-02-13 Ericsson Inc. Method and system for channel allocation using power control and mobile-assisted handover measurements
GB2287379B (en) * 1994-03-10 1998-06-10 Roke Manor Research Apparatus for use in a mobile radio system
US5809430A (en) * 1994-06-03 1998-09-15 Motorola, Inc. Method and apparatus for base selection in a communication system
US5550828A (en) * 1994-06-30 1996-08-27 Motorola, Inc. Method of handing off a communication unit in a cellular communication system
US5577022A (en) * 1994-11-22 1996-11-19 Qualcomm Incorporated Pilot signal searching technique for a cellular communications system
JP3126105B2 (ja) * 1995-12-06 2001-01-22 株式会社エヌ・ティ・ティ・ドコモ スペクトル拡散通信におけるソフト・ハンドオフのための装置
US5883888A (en) * 1996-12-03 1999-03-16 Telefonaktiebolaget Lm Ericsson Seamless soft handoff in a CDMA cellular communications system
US5854785A (en) * 1996-12-19 1998-12-29 Motorola, Inc. System method and wireless communication device for soft handoff

Also Published As

Publication number Publication date
CN1241346A (zh) 2000-01-12
HK1059351A1 (en) 2004-06-25
DK1928203T3 (da) 2012-06-18
US6122511A (en) 2000-09-19
CN1108078C (zh) 2003-05-07
EP1487231A2 (en) 2004-12-15
CN1443018A (zh) 2003-09-17
ES2138578T1 (es) 2000-01-16
WO1999020072A1 (en) 1999-04-22
JP2001505755A (ja) 2001-04-24
EP1487231B1 (en) 2008-05-07
ATE277485T1 (de) 2004-10-15
KR20000068941A (ko) 2000-11-25
CN1909730A (zh) 2007-02-07
DK1487231T3 (da) 2008-07-21
CA2269798C (en) 2007-09-25
DE69826436D1 (de) 2004-10-28
CA2593776A1 (en) 1999-04-22
ES2305637T3 (es) 2008-11-01
DE69839457D1 (de) 2008-06-19
EP0943221B1 (en) 2004-09-22
CA2269798A1 (en) 1999-04-22
CN1909729B (zh) 2010-07-21
DK0943221T3 (da) 2005-01-17
JP4250666B2 (ja) 2009-04-08
JP4027995B2 (ja) 2007-12-26
JP2008029023A (ja) 2008-02-07
DE69826436T2 (de) 2005-10-13
EP1928203A1 (en) 2008-06-04
ES2138578T3 (es) 2005-04-16
EP0943221A1 (en) 1999-09-22
ATE394888T1 (de) 2008-05-15
CN1819704A (zh) 2006-08-16
DE943221T1 (de) 1999-12-09
CN1909730B (zh) 2010-06-23
CN1248540C (zh) 2006-03-29
ATE551861T1 (de) 2012-04-15
AU9786998A (en) 1999-05-03
US5960347A (en) 1999-09-28
CN1909729A (zh) 2007-02-07
CA2593776C (en) 2015-08-25
EP1487231A3 (en) 2006-05-24
EP1928203B1 (en) 2012-03-28
HK1023471A1 (en) 2000-09-08

Similar Documents

Publication Publication Date Title
KR100525979B1 (ko) 심리스 핸드-오프 시스템과 방법
US20080032693A1 (en) Seamless handoff system and method
KR100495687B1 (ko) 이동 통신 시스템에서 파일럿 인접 리스트를 합성하는 방법 및 장치
CN100525516C (zh) 在通信系统间进行移动协助硬切换的方法和设备
KR20020065627A (ko) 제 3 세대 ｃｄｍａ 시스템들을 위한 개선된 소프트핸드오프 알고리즘 및 무선 통신 시스템
JP3741908B2 (ja) 周辺基地局情報更新方法、移動通信システム、移動局および基地局
HK1100740A1 (zh) 無縫過區切換系統及方法
HK1100740B (en) Seamless handoff system and method
HK1100741B (en) Seamless handoff system and method
HK1023471B (en) Seamless handoff system and method
MXPA99004193A (en) Seamless handoff system and method
HK1095005A (en) Seamless handoff system and method
HK1059351B (en) Seamless handoff and method
JP2006033894A (ja) 周辺基地局情報更新方法、移動通信システム、移動局および基地局

Legal Events

Date Code Title Description
PA0105 International application

St.27 status event code: A-0-1-A10-A15-nap-PA0105

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

R18-X000 Changes to party contact information recorded

St.27 status event code: A-3-3-R10-R18-oth-X000

PG1501 Laying open of application

St.27 status event code: A-1-1-Q10-Q12-nap-PG1501

A201 Request for examination
PA0201 Request for examination

St.27 status event code: A-1-2-D10-D11-exm-PA0201

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

St.27 status event code: A-1-2-D10-D21-exm-PE0902

R17-X000 Change to representative recorded

St.27 status event code: A-3-3-R10-R17-oth-X000

T11-X000 Administrative time limit extension requested

St.27 status event code: U-3-3-T10-T11-oth-X000

P11-X000 Amendment of application requested

St.27 status event code: A-2-2-P10-P11-nap-X000

P13-X000 Application amended

St.27 status event code: A-2-2-P10-P13-nap-X000

E701 Decision to grant or registration of patent right
PE0701 Decision of registration

St.27 status event code: A-1-2-D10-D22-exm-PE0701

GRNT Written decision to grant
PR0701 Registration of establishment

St.27 status event code: A-2-4-F10-F11-exm-PR0701

PR1002 Payment of registration fee

St.27 status event code: A-2-2-U10-U12-oth-PR1002

Fee payment year number: 1

PG1601 Publication of registration

St.27 status event code: A-4-4-Q10-Q13-nap-PG1601

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 4

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 5

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 6

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 7

FPAY Annual fee payment

Payment date: 20120919

Year of fee payment: 8

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 8

R18-X000 Changes to party contact information recorded

St.27 status event code: A-5-5-R10-R18-oth-X000

FPAY Annual fee payment

Payment date: 20130924

Year of fee payment: 9

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 9

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 10

PR1001 Payment of annual fee

St.27 status event code: A-4-4-U10-U11-oth-PR1001

Fee payment year number: 11

LAPS Lapse due to unpaid annual fee
PC1903 Unpaid annual fee

St.27 status event code: A-4-4-U10-U13-oth-PC1903

Not in force date: 20161028

Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

PC1903 Unpaid annual fee

St.27 status event code: N-4-6-H10-H13-oth-PC1903

Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE

Not in force date: 20161028

P22-X000 Classification modified

St.27 status event code: A-4-4-P10-P22-nap-X000