DE69125003D1 - Zellularfunk - Google Patents

Zellularfunk

Info

Publication number
DE69125003D1
DE69125003D1 DE69125003T DE69125003T DE69125003D1 DE 69125003 D1 DE69125003 D1 DE 69125003D1 DE 69125003 T DE69125003 T DE 69125003T DE 69125003 T DE69125003 T DE 69125003T DE 69125003 D1 DE69125003 D1 DE 69125003D1
Authority
DE
Germany
Prior art keywords
cellular radio
cellular
radio
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 - Lifetime
Application number
DE69125003T
Other languages
English (en)
Other versions
DE69125003T2 (de
Inventor
Atsushi Murase
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of DE69125003D1 publication Critical patent/DE69125003D1/de
Application granted granted Critical
Publication of DE69125003T2 publication Critical patent/DE69125003T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04W36/04—Reselecting a cell layer in multi-layered cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69125003T 1990-05-30 1991-05-24 Zellularfunk Expired - Lifetime DE69125003T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909012044A GB9012044D0 (en) 1990-05-30 1990-05-30 Cellular radio
PCT/GB1991/000823 WO1991019403A1 (en) 1990-05-30 1991-05-24 Cellular radio

Publications (2)

Publication Number Publication Date
DE69125003D1 true DE69125003D1 (de) 1997-04-10
DE69125003T2 DE69125003T2 (de) 1997-06-26

Family

ID=10676769

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125003T Expired - Lifetime DE69125003T2 (de) 1990-05-30 1991-05-24 Zellularfunk

Country Status (9)

Country Link
US (1) US5379446A (de)
EP (1) EP0531374B1 (de)
JP (1) JP3004355B2 (de)
DE (1) DE69125003T2 (de)
ES (1) ES2097810T3 (de)
GB (2) GB9012044D0 (de)
HK (1) HK133296A (de)
SG (1) SG47700A1 (de)
WO (1) WO1991019403A1 (de)

Families Citing this family (60)

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US5170485A (en) * 1990-11-07 1992-12-08 Motorola, Inc. Hand-off algorithm for elongated radiotelephone cells
GB9028108D0 (en) * 1990-12-27 1991-02-13 British Telecomm Mobile radio handover initiation determination
SE468921B (sv) * 1992-02-24 1993-04-05 Televerket Anordning vid mobila telekommunikationssystem foer att moejliggoera en foerbaettrad oeverlaemningsfunktion
CA2107820A1 (en) * 1992-10-16 1994-04-17 Keith Daniel O'neill Low-power wireless system for telephone services
US5991901A (en) * 1993-02-11 1999-11-23 Motorola, Inc. Indication of coverage area limits within digital communication systems
US5521961A (en) * 1993-03-26 1996-05-28 Celcore, Inc. Mobility management method for delivering calls in a microcellular network
US5487101A (en) * 1993-03-26 1996-01-23 Celcore, Inc. Off-load cellular system for off-loading cellular service from a main cellular system to increase cellular service capacity
CA2119199C (en) * 1993-05-07 2003-05-27 Steven J. Willhoff Dual stage rssi handoff trigger
GB2284725B (en) * 1993-11-27 1997-01-29 Motorola Ltd Method for determining handover in a multicellular environment
JP2671789B2 (ja) * 1993-12-27 1997-10-29 日本電気株式会社 移動体通信システムにおけるハンドオーバ方式
FI941268A (fi) * 1994-03-17 1995-09-18 Nokia Telecommunications Oy Menetelmä vastaanotetun tehon arvioimiseksi sekä vastaanotin
US5722072A (en) * 1994-03-21 1998-02-24 Motorola, Inc. Handover based on measured time of signals received from neighboring cells
SE9401713D0 (sv) * 1994-05-16 1994-05-16 Ericsson Telefon Ab L M Metod att förbättra mätnoggrannheten vid handoverbeslut
IT1269794B (it) * 1994-05-19 1997-04-15 Sits Soc It Telecom Siemens Procedimento per l'anticipo di handover in sistemi radiomobili in presenza di brusche attenuazioni dei segnali radio e relativo circuito
JP3450436B2 (ja) * 1994-05-30 2003-09-22 キヤノン株式会社 ファクシミリ装置
CA2150218A1 (en) * 1994-06-01 1995-12-02 Paul S. Meche Dual stage approach for evaluating a received signal in a communications system
US6049715A (en) * 1994-06-01 2000-04-11 Nortel Networks Corporation Method and apparatus for evaluating a received signal in a wireless communication utilizing long and short term values
FI98693C (fi) * 1994-06-14 1997-07-25 Nokia Telecommunications Oy Handover matkaviestinjärjestelmässä
AU3216095A (en) * 1994-08-09 1996-03-07 Pacific Communication Sciences, Inc. Method and apparatus for efficient handoffs by mobile communication entities
US5623535A (en) * 1994-09-08 1997-04-22 Lucent Technologies Inc. Operations of cellular communications systems based on mobility and teletraffic statistics collected by mobile units
US5590177A (en) * 1994-09-30 1996-12-31 Motorola, Inc. Method for preventing a dropped call during a handoff in a radiotelephone system
EP0721259A1 (de) * 1995-01-04 1996-07-10 Motorola, Inc. Verfahren zur Rufumschaltung im Notfall in einer Kommunikationsanordnung mit Satelliten
DE19505780A1 (de) * 1995-02-20 1996-08-29 Philips Patentverwaltung Mobilfunksystem mit verbessertem "Handover"
SE514240C2 (sv) * 1995-03-31 2001-01-29 Ericsson Telefon Ab L M Förfarande och anordning för överflyttning av en förbindelse i ett digitalt radiokommunikationssystem
US5822697A (en) * 1995-06-05 1998-10-13 Hitachi America, Ltd. Hybrid cellular radio communication system
GB2303024B (en) * 1995-07-01 2000-04-12 Motorola Ltd Method for determining handover in a multicellular communications system
US5903840A (en) * 1996-01-16 1999-05-11 Telefonaktiebolaget Im Ericsson (Publ) System and method for adaptive measurement collection and handoff queuing in a radio telecommunications network
US5930710A (en) * 1996-03-07 1999-07-27 Telefonaktiebolaget L M Ericsson Control/pilot channel reselection between cells belonging to different registration areas
GB2313740B (en) * 1996-05-30 2000-08-02 Motorola Ltd Handover management system for cellular network
SE510940C2 (sv) * 1996-12-19 1999-07-12 Ericsson Telefon Ab L M Anordning och förfarande i ett kommunikationsnät för snabb handover genom identifiering av predikterad bärvågssignal
CN1309187C (zh) 1996-12-26 2007-04-04 Ntt移动通信网株式会社 用于执行基于帧的信号通信的帧通信***
US5995498A (en) * 1996-12-30 1999-11-30 Ericsson, Inc. Channel strength measurement shifting scheme
SE510052C2 (sv) * 1997-08-15 1999-04-12 Ericsson Telefon Ab L M Förfarande för handover i ett mobilradiosystem, system för mobilradio, samt mobilterminal och radiobasstation ingående i ett sådant system
US6285883B1 (en) * 1997-12-24 2001-09-04 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive handoff hysteresis in wireless telecommunication networks
US5995836A (en) * 1997-12-24 1999-11-30 Telefonaktiebolaget Lm Ericsson Method and system for variable handoff hysteresis in a radiocommunication system
US6539227B1 (en) 1998-12-18 2003-03-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for controlling hard and soft handoffs in radio communications systems
JP3758421B2 (ja) * 1999-06-15 2006-03-22 京セラ株式会社 ゾーン移行制御方法
DE60023334T2 (de) * 1999-11-17 2006-07-20 Telefonaktiebolaget Lm Ericsson (Publ) Beschleunigungsabhängige kanalumschaltung in mobilen telekommunikationsnetzen
DE10010958A1 (de) * 2000-03-06 2001-09-20 Siemens Ag Verfahren zur Intersystem-Verbindungsweiterschaltung
US6760303B1 (en) 2000-03-29 2004-07-06 Telefonaktiebolaget Lm Ericsson (Publ) Channel-type switching based on cell load
US6829482B2 (en) 2000-05-16 2004-12-07 Telefonaktiebolaget Lm Ericsson (Publ) Switching from dedicated to common channels when radio resources are controlled by drift radio network
DE60120505T2 (de) * 2001-06-19 2007-01-04 Nokia Corp. Verfahren und system zur lastaufteilung unter einer vielzahl von zellen in einem mobilfunknetz
JP3946059B2 (ja) * 2002-03-06 2007-07-18 株式会社エヌ・ティ・ティ・ドコモ 移動局、通信システム及び通信方法
US7352717B2 (en) * 2002-05-31 2008-04-01 Lucent Technologies Inc. Performing network control at active base transceiver stations and a base station controller
GB2390265A (en) * 2002-06-26 2003-12-31 Motorola Inc Mechanism for determining when to hand over from a terrestrial to a non-terrestrial communication network
US7620029B2 (en) * 2003-10-09 2009-11-17 Qualcomm Incorporated Parallel cell ID acquisition in frequency division multiple access systems
US7321749B2 (en) * 2003-10-09 2008-01-22 Qualcomm Incorporated Cell selection techniques for frequency division multiple access systems
TWI288572B (en) * 2004-08-04 2007-10-11 Benq Corp Mobile unit and method for which to re-select a serving base station
US8036665B2 (en) * 2004-10-28 2011-10-11 At&T Mobility Ii Llc Wireless mobile station call handoff
GB2421872B (en) * 2004-12-29 2007-06-13 Motorola Inc Mobile station, infrastructure processor, system and method for use in cellular communications
CN100463562C (zh) * 2005-01-19 2009-02-18 中兴通讯股份有限公司 一种个人手持电话***基站的切换方法
US8467784B2 (en) 2006-07-14 2013-06-18 Qualcomm Incorporated WLAN system scanning and selection
KR100833731B1 (ko) 2006-10-20 2008-05-29 엘지노텔 주식회사 이동국의 이동 가능성의 예측에 기초한 핸드 오버 수행방법
GB2447887B (en) 2007-03-14 2011-08-10 Vodafone Plc Radio measurements in cellular telecommunications systems
EP2272280B1 (de) * 2008-04-03 2021-07-14 Telefonaktiebolaget LM Ericsson (publ) Verfahren und anordnung zum umgang mit handover-bezogenen parametern in einem mobilkommunikationsnetz
JP5343803B2 (ja) * 2009-10-01 2013-11-13 富士通株式会社 移動端末
US8116761B1 (en) 2010-08-11 2012-02-14 Sprint Communications Company L.P. Modifying wireless network paging zone broadcast based on wireless access congestion
US8706120B2 (en) * 2011-03-20 2014-04-22 Samsung Electronics Co., Ltd. Mobile telecommunication system with adaptive handoff mechanism and method of operation thereof
US9326214B1 (en) * 2013-04-04 2016-04-26 Sprint Spectrum L.P. Managing a handover of a wireless device
JP2017013199A (ja) 2015-07-03 2017-01-19 株式会社ディスコ 切削装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556760A (en) * 1984-06-11 1985-12-03 Itt Corporation Hand-off filter for cellular mobile radio
US4718081A (en) * 1986-11-13 1988-01-05 General Electric Company Method and apparatus for reducing handoff errors in a cellular radio telephone communications system
JP2636236B2 (ja) * 1987-03-31 1997-07-30 三菱電機株式会社 通話中チヤンネル切替方式
US5276906A (en) * 1990-09-27 1994-01-04 Motorola, Inc. Radiotelephone system incorporating two thresholds for handoff
US5203010A (en) * 1990-11-13 1993-04-13 Motorola, Inc. Radio telephone system incorporating multiple time periods for communication transfer
US5239675A (en) * 1991-04-10 1993-08-24 Motorola, Inc. Reduced noise interference during handoff

Also Published As

Publication number Publication date
SG47700A1 (en) 1998-04-17
GB9012044D0 (en) 1990-07-18
US5379446A (en) 1995-01-03
JP3004355B2 (ja) 2000-01-31
ES2097810T3 (es) 1997-04-16
EP0531374B1 (de) 1997-03-05
JPH05506557A (ja) 1993-09-22
GB9225033D0 (en) 1993-05-12
GB2263377B (en) 1994-08-03
EP0531374A1 (de) 1993-03-17
WO1991019403A1 (en) 1991-12-12
DE69125003T2 (de) 1997-06-26
HK133296A (en) 1996-08-02
GB2263377A (en) 1993-07-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition