HK1059351A1 - Seamless handoff and method - Google Patents

Seamless handoff and method

Info

Publication number
HK1059351A1
HK1059351A1 HK04101913A HK04101913A HK1059351A1 HK 1059351 A1 HK1059351 A1 HK 1059351A1 HK 04101913 A HK04101913 A HK 04101913A HK 04101913 A HK04101913 A HK 04101913A HK 1059351 A1 HK1059351 A1 HK 1059351A1
Authority
HK
Hong Kong
Prior art keywords
base station
subscriber unit
cdma
signal
data
Prior art date
Application number
HK04101913A
Other languages
English (en)
Inventor
Fatih M Ozluturk
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of HK1059351A1 publication Critical patent/HK1059351A1/xx

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. 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
    • 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. TPC [Transmission Power Control], power saving 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. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—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)
  • Processing Of Solid Wastes (AREA)
  • Vehicle Body Suspensions (AREA)
HK04101913A 1997-10-09 2004-03-16 Seamless handoff and method HK1059351A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/947,719 US5960347A (en) 1997-10-09 1997-10-09 Seamless handoff system and method

Publications (1)

Publication Number Publication Date
HK1059351A1 true HK1059351A1 (en) 2004-06-25

Family

ID=25486641

Family Applications (2)

Application Number Title Priority Date Filing Date
HK00101785A HK1023471A1 (en) 1997-10-09 2000-03-22 Seamless handoff system and method.
HK04101913A HK1059351A1 (en) 1997-10-09 2004-03-16 Seamless handoff and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
HK00101785A HK1023471A1 (en) 1997-10-09 2000-03-22 Seamless handoff system and method.

Country Status (13)

Country Link
US (2) US5960347A (xx)
EP (3) EP1487231B1 (xx)
JP (2) JP4027995B2 (xx)
KR (1) KR100525979B1 (xx)
CN (5) CN1248540C (xx)
AT (3) ATE394888T1 (xx)
AU (1) AU9786998A (xx)
CA (2) CA2593776C (xx)
DE (3) DE69839457D1 (xx)
DK (3) DK0943221T3 (xx)
ES (2) ES2305637T3 (xx)
HK (2) HK1023471A1 (xx)
WO (1) WO1999020072A1 (xx)

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
WO1999041925A1 (en) * 1998-02-16 1999-08-19 Nokia Networks 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
ATE213897T1 (de) * 1999-04-30 2002-03-15 Cit Alcatel Weiches übergabeverfahren für cdma unter verwendung von rückkanal messdaten
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
EP1134992B1 (en) * 2000-03-14 2006-05-24 Lucent Technologies Inc. Method and mobile network to minimise the RACH transmit power
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
BR0115929A (pt) * 2000-12-05 2006-01-17 Qualcomm Inc Método e equipamento para ajuste de nìvel de potência em um sistema de comunicação sem fio
EP1223769B1 (en) * 2001-01-13 2010-10-06 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
CA2469518C (en) * 2001-12-07 2010-06-29 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
CN101263725B (zh) * 2005-12-27 2012-03-21 富士通株式会社 移动控制装置和越区切换控制方法
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
WO1994005109A1 (en) * 1992-08-25 1994-03-03 Motorola, Inc. Method and apparatus for performing a hand-off in a wireless communication system
EP0624994B1 (en) * 1993-05-12 2000-04-05 Ntt Mobile Communications Network Inc. Hand-off method and mobile station for spread spectrum communications system
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
DE69839457D1 (de) 2008-06-19
EP1487231A3 (en) 2006-05-24
DK1928203T3 (da) 2012-06-18
EP1928203B1 (en) 2012-03-28
CN1909730B (zh) 2010-06-23
EP0943221A1 (en) 1999-09-22
AU9786998A (en) 1999-05-03
ATE394888T1 (de) 2008-05-15
KR100525979B1 (ko) 2005-11-08
EP1487231B1 (en) 2008-05-07
CA2593776C (en) 2015-08-25
ES2138578T1 (es) 2000-01-16
CN1241346A (zh) 2000-01-12
CN1248540C (zh) 2006-03-29
ATE277485T1 (de) 2004-10-15
ES2305637T3 (es) 2008-11-01
JP4027995B2 (ja) 2007-12-26
CN1909729A (zh) 2007-02-07
DK1487231T3 (da) 2008-07-21
EP1487231A2 (en) 2004-12-15
EP0943221B1 (en) 2004-09-22
CA2269798A1 (en) 1999-04-22
DK0943221T3 (da) 2005-01-17
DE943221T1 (de) 1999-12-09
ES2138578T3 (es) 2005-04-16
CN1819704A (zh) 2006-08-16
HK1023471A1 (en) 2000-09-08
CA2269798C (en) 2007-09-25
CN1909730A (zh) 2007-02-07
DE69826436T2 (de) 2005-10-13
EP1928203A1 (en) 2008-06-04
JP2008029023A (ja) 2008-02-07
JP4250666B2 (ja) 2009-04-08
ATE551861T1 (de) 2012-04-15
DE69826436D1 (de) 2004-10-28
US6122511A (en) 2000-09-19
KR20000068941A (ko) 2000-11-25
CN1443018A (zh) 2003-09-17
CN1909729B (zh) 2010-07-21
CA2593776A1 (en) 1999-04-22
CN1108078C (zh) 2003-05-07
WO1999020072A1 (en) 1999-04-22
JP2001505755A (ja) 2001-04-24
US5960347A (en) 1999-09-28

Similar Documents

Publication Publication Date Title
HK1059351A1 (en) Seamless handoff and method
PL346156A1 (en) Gated transmission in control hold state in cdma communication system
AU3496897A (en) Cdma communication system which selectively suppresses data transmissions during establishment of a communication channel
HK1028304A1 (en) A method and a system for wireless communication
CA2362419A1 (en) Data transmitting method in a cdma system
CA2328352A1 (en) Power control apparatus and method for inter-frequency handoff in cdma communication system
CA2290094A1 (en) Asymmetric forward power control in a cdma communication network
TW357503B (en) High-data rate CDMA wireless communication system
WO1999014869A3 (en) Accurate open loop power control in a code-division multiple access communication system
NO991256D0 (no) Foroverregulering av sendereffekt, sµrlig formidlet over et sambandsnett for mobile radiostasjoner
HK1109821A1 (en) Method and apparatus for determining a reverse link transmission rate in a wireless communication system
MY136084A (en) Method and system of transmission power control.
AU5030696A (en) A wireless base station
CA2413937A1 (en) A method of controlling initial power ramp-up in cdma systems by using short codes.
CA2301619A1 (en) Method for transmitting power control signal in mobile communication system
EP0667726A3 (en) Power control during hand-over in a mobile cellular radio communication system
IL132349A0 (en) Synchronization of forward link base station power levels during handoff between base station sectors in a mobile radio communication system
CA2311508A1 (en) Device and method for implementing handoff in mobile communication system
GB9912846D0 (en) A method of controlling power
WO1999022469A3 (de) Verfahren zur datenübertragung, steuereinrichtung und funkstation

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20161006