FI885520A - Cellsystem foer radiotelefontrafik foersedd med skydd foer samtalsfraonfall. - Google Patents

Cellsystem foer radiotelefontrafik foersedd med skydd foer samtalsfraonfall. Download PDF

Info

Publication number
FI885520A
FI885520A FI885520A FI885520A FI885520A FI 885520 A FI885520 A FI 885520A FI 885520 A FI885520 A FI 885520A FI 885520 A FI885520 A FI 885520A FI 885520 A FI885520 A FI 885520A
Authority
FI
Finland
Prior art keywords
base site
foer
handoff
radiotelephone
call
Prior art date
Application number
FI885520A
Other languages
English (en)
Other versions
FI885520A0 (fi
FI100084B (fi
Inventor
Stephen L Spear
Original Assignee
Motorola 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22533712&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI885520(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FI885520A0 publication Critical patent/FI885520A0/fi
Publication of FI885520A publication Critical patent/FI885520A/fi
Application granted granted Critical
Publication of FI100084B publication Critical patent/FI100084B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • 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
    • H04W36/0079—Transmission or use of information for re-establishing the radio link in case of hand-off failure or rejection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/34—Reselection control
    • H04W36/38—Reselection control by fixed network equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
FI885520A 1988-01-29 1988-11-28 Radiopuhelinliikenteen solukkojärjestelmä, joka on varustettu suojauks ella puhelunmenetystä vastaan FI100084B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15025388 1988-01-29
US07/150,253 US4811380A (en) 1988-01-29 1988-01-29 Cellular radiotelephone system with dropped call protection

Publications (3)

Publication Number Publication Date
FI885520A0 FI885520A0 (fi) 1988-11-28
FI885520A true FI885520A (fi) 1989-07-30
FI100084B FI100084B (fi) 1997-09-15

Family

ID=22533712

Family Applications (1)

Application Number Title Priority Date Filing Date
FI885520A FI100084B (fi) 1988-01-29 1988-11-28 Radiopuhelinliikenteen solukkojärjestelmä, joka on varustettu suojauks ella puhelunmenetystä vastaan

Country Status (10)

Country Link
US (1) US4811380A (fi)
EP (2) EP0325713B1 (fi)
JP (1) JP2586631B2 (fi)
AT (2) ATE306796T1 (fi)
CA (1) CA1280466C (fi)
DE (2) DE3856584T2 (fi)
ES (1) ES2131040T3 (fi)
FI (1) FI100084B (fi)
GR (1) GR3030388T3 (fi)
HK (1) HK1016801A1 (fi)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1293042C (en) * 1988-02-04 1991-12-10 Ian Macmillan Communication system supporting remote operations
SE460449B (sv) * 1988-02-29 1989-10-09 Ericsson Telefon Ab L M Cellindelat digitalt mobilradiosystem och foerfarande foer att oeverfoera information i ett digitalt cellindelat mobilradiosystem
US5327577A (en) * 1988-06-14 1994-07-05 Telefonaktiebolaget L M Ericsson Handover method for mobile radio system
SE8802229D0 (sv) 1988-06-14 1988-06-14 Ericsson Telefon Ab L M Forfarande vid mobilradiostation
US4984290A (en) * 1988-08-04 1991-01-08 Motorola, Inc. Method of controlling communications in a cellular radiotelephone system
US5189734A (en) * 1988-11-16 1993-02-23 U.S. Philips Corporation Cellular radio system
US5008925A (en) * 1989-12-20 1991-04-16 Motorola, Inc. Cellular telephone responsive to service availability for operating on different cellular telephone systems
US5020093A (en) * 1989-06-23 1991-05-28 Motorola, Inc. Cellular telephone operable on different cellular telephone systems
NL8901874A (nl) * 1989-07-20 1991-02-18 Philips Nv Planaire josephson inrichting.
US4972460A (en) * 1989-09-29 1990-11-20 Motorola, Inc. Automatic equivalent temporary talkgroup assignment in a roaming trunking environment
EP0443503B1 (en) * 1990-02-23 1997-07-30 Mitsubishi Denki Kabushiki Kaisha Mobile communication system
US5036531A (en) * 1990-02-27 1991-07-30 Motorola Inc. Local PSTN interconnect with remote signal link processing
CA2047139C (en) * 1990-07-16 1997-12-09 Mitsuchika Saitoh Method for manufacturing superconducting device composed of oxide superconductor material and superconducting device manufactured thereby
US5230082A (en) * 1990-08-16 1993-07-20 Telefonaktiebolaget L M Ericsson Method and apparatus for enhancing signalling reliability in a cellular mobile radio telephone system
CA2051086C (en) * 1990-09-11 1996-01-02 Toshihiro Hara Cordless key telephone system having zone switching function
US5276906A (en) * 1990-09-27 1994-01-04 Motorola, Inc. Radiotelephone system incorporating two thresholds for handoff
US5140627A (en) * 1990-10-09 1992-08-18 Telefonaktiebolaget L M Ericsson Handoff procedure that minimizes disturbances to dtmf signalling in a cellular radio system
US5175867A (en) * 1991-03-15 1992-12-29 Telefonaktiebolaget L M Ericsson Neighbor-assisted handoff in a cellular communications system
US5375163A (en) * 1991-04-25 1994-12-20 Matsushita Electric Industrial Co., Ltd. Multi-channel cordless telephone system for maintaining master-slave communication
US5355515A (en) * 1991-06-12 1994-10-11 Telefonaktiebolaget L M Ericsson Method and apparatus for estimating initial time alignment in a cellular communications network
SE468696B (sv) * 1991-06-20 1993-03-01 Ericsson Telefon Ab L M Foerfarande att utfoera handover i ett mobilradiosystem med celler i flera skikt
US5345467A (en) * 1991-07-10 1994-09-06 Interdigital Technology Corp. CDMA cellular hand-off apparatus and method
US5280541A (en) * 1991-10-24 1994-01-18 Motorola, Inc. Cordless telephone communication system link re-establishment protocol
US5212808A (en) * 1991-11-08 1993-05-18 Teknekron Communications Systems, Inc. Method and an apparatus for re-establishing wireless communication between a base unit and a remote unit
GB2269726B (en) * 1992-06-22 1996-08-28 Motorola Inc Alternate base-site transmission of a handoff command in a communication syste m
US5440613A (en) * 1992-12-30 1995-08-08 At&T Corp. Architecture for a cellular wireless telecommunication system
SE9300681D0 (sv) * 1993-03-01 1993-03-01 Ericsson Telefon Ab L M A method and an apparatusfor handing off a mobile station from a first to a second channel in a mobile communication system
US5375123A (en) * 1993-02-05 1994-12-20 Telefonakitebolaget L. M. Ericsson Allocation of channels using interference estimation
WO1994028689A1 (en) * 1993-05-20 1994-12-08 Telefonaktiebolaget Lm Ericsson Reestablishment of call after disconnect
CA2142020A1 (en) * 1993-07-02 1995-01-12 John Phillip Lodwig Method and apparatus for transferring a radiotelephone call from one coverage area to another
US5483664A (en) * 1993-07-26 1996-01-09 Motorola, Inc. Cellular communications with scheduled handoffs
US5517674A (en) * 1993-08-09 1996-05-14 Telefonaktiebolaget Lm Ericsson Low capacity mobile assisted handoff in a cellular communications network
US5537679A (en) * 1994-08-01 1996-07-16 Motorola, Inc. Communication network with flexible handoff scheduling for mobile nodes
US5488640A (en) * 1994-08-31 1996-01-30 Motorola, Inc. Method and apparatus for re-establishment of a communication
US5590177A (en) * 1994-09-30 1996-12-31 Motorola, Inc. Method for preventing a dropped call during a handoff in a radiotelephone system
US6914965B1 (en) 1994-09-30 2005-07-05 Qualcomm Incorporated Method and apparatus of providing a single state mobile unit in a modem connection comprising a wireless link
US5845211A (en) * 1995-01-13 1998-12-01 Bell South Corporation Wireless digital network
JP3599486B2 (ja) * 1995-07-31 2004-12-08 キヤノン株式会社 無線制御装置、無線通信システム及び無線制御装置の制御方法
US5914668A (en) * 1996-08-30 1999-06-22 Lucent Technologies Inc. Wireless terminal controlled mobility operational parameters
US6473602B1 (en) 1996-10-28 2002-10-29 Ericsson Inc. Mobile assisted handoff in radiocommunication systems
US5937349A (en) * 1996-10-29 1999-08-10 Motorola, Inc. Method and system of tracking dynamic communication parameters during a link interruption
US6470188B1 (en) 1996-12-26 2002-10-22 Ntt Mobile Communications Network, Inc. Method for handover
US6269149B1 (en) * 1996-12-30 2001-07-31 Paradyne Corporation System and method for enhancing a communication link
SE511882C2 (sv) 1997-02-25 1999-12-13 Ericsson Telefon Ab L M Metod och anordning för återupprättande av en samtalsförbindelse i ett mobilt telekommunikationssystem
US5913167A (en) * 1997-02-28 1999-06-15 Motorola, Inc. Method for transferring a communication link in a wireless communication system
US5995830A (en) * 1997-04-09 1999-11-30 At&T Wireless Services Inc. System and method for processing dropped calls
CA2231938C (en) * 1997-04-09 2001-10-30 At&T Wireless Services, Inc. System and method for processing dropped calls
US6356622B1 (en) 1997-05-02 2002-03-12 Paradyne Corporation System and apparatus for enhancing a network link
US6115608A (en) * 1997-09-10 2000-09-05 Northern Telecom Limited Intersystem handover method and apparatus
US6091962A (en) * 1998-01-30 2000-07-18 Motorola, Inc. Method and apparatus for re-establishing a communication in a wireless communication system
US6990349B1 (en) 1998-11-20 2006-01-24 Nortel Networks Limited System and method for reconnecting a mobile station to an emergency operator
KR100330246B1 (ko) * 1998-12-03 2002-09-26 삼성전자 주식회사 이동통신시스템에서의호장애시호자동재접속방법
KR100277131B1 (ko) * 1998-12-03 2001-01-15 윤종용 이동통신시스템에서의호장애시호자동재접속방법
KR100342565B1 (ko) * 1999-04-20 2002-07-04 윤종용 코드분할 다중접속 시스템의 단말기에서 단절된 호 복원 방법및 그 통보 방법
US6445918B1 (en) * 1999-11-01 2002-09-03 Telefonaktiebolaget L M Ericsson (Publ) Method and system for saving dropped calls
US6574198B1 (en) * 2000-07-06 2003-06-03 Ericsson Inc. Systems and methods for maintaining a signaling link in a communications network
US6845245B2 (en) * 2000-12-22 2005-01-18 Denso Corporation Access parameter adaptation and packet data resource management using detailed mobile status information
US7676224B1 (en) 2001-07-06 2010-03-09 At&T Mobility Ii Llc Enhanced communication service for predicting and handling communication interruption
ES2273303T3 (es) 2001-10-01 2007-05-01 Research In Motion Limited Gestion de contactos para dispositivos de comunicacion movil en las r edes radioelectricas de conmutacion de paquetes.
US7693522B2 (en) * 2001-12-19 2010-04-06 Thomson Licensing Method and apparatus for handing off a mobile terminal between a mobile network and a wireless LAN
US7171226B2 (en) * 2002-11-19 2007-01-30 General Motors Corporation Communication retry method over digital wireless systems
ATE436166T1 (de) 2003-01-23 2009-07-15 Research In Motion Ltd Verfahren und einrichtung für ein drahtloses kommunikationsgerät zum verbindungswiederaufbau nach einem verbindungsabbruch in einem drahtlosen kommunikationssystem
US7747244B2 (en) 2003-01-23 2010-06-29 Research In Motion Limited Methods and apparatus for re-establishing communication for a wireless communication device after a communication loss in a wireless communication network
KR100656038B1 (ko) * 2003-09-04 2006-12-11 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 이동 가입자 단말기의드롭 발생에 따른 서빙 기지국 선택 시스템 및 방법
US8503430B2 (en) * 2006-11-21 2013-08-06 Qualcomm Incorporated Dynamic operational mode management for a wireless terminal
US8644811B2 (en) * 2007-04-11 2014-02-04 Cisco Technology, Inc. System, method, and apparatus for avoiding call drop for a wireless phone
US8195143B2 (en) * 2008-11-04 2012-06-05 Broadcom Corporation Management unit for facilitating inter-network hand-off for a multiservice communication device
US10516777B1 (en) * 2018-09-11 2019-12-24 Qualcomm Incorporated Enhanced user experience for voice communication

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3663762A (en) * 1970-12-21 1972-05-16 Bell Telephone Labor Inc Mobile communication system
JPS5228521B2 (fi) * 1972-07-15 1977-07-27
US4028500A (en) * 1973-05-15 1977-06-07 Martin Marietta Corporation Mobile unit supervisory control sequencer and method
US3898390A (en) * 1973-05-15 1975-08-05 Martin Marietta Corp Multiple zone communications system and method
US3906166A (en) * 1973-10-17 1975-09-16 Motorola Inc Radio telephone system
US4268722A (en) * 1978-02-13 1981-05-19 Motorola, Inc. Radiotelephone communications system
JPS5595438A (en) * 1979-01-11 1980-07-19 Nec Corp Channel switching system of car telephone
GB2063011B (en) * 1979-11-09 1983-10-12 Philips Electronic Associated Information transmission system
US4398063A (en) * 1980-10-24 1983-08-09 Hass Ronald J Mobile telephone interoffice handoff limiting method and apparatus
US4430755A (en) * 1981-05-14 1984-02-07 Motorola, Inc. Portable radio telephone
US4395594A (en) * 1981-08-24 1983-07-26 Bell Telephone Laboratories, Incorporated Method and apparatus for forcing randomization of idle channel seizures
JPS58123243A (ja) * 1982-01-19 1983-07-22 Nec Corp 追跡通話チヤンネル切替方式における新チヤンネル指定方式
JPS58164336A (ja) * 1982-03-24 1983-09-29 Nec Corp 無線電話交換方式
JPS58186239A (ja) * 1982-04-24 1983-10-31 Nippon Telegr & Teleph Corp <Ntt> 移動通信のチヤネル切替試験方式
FR2527872A1 (fr) * 1982-05-27 1983-12-02 Thomson Csf Station fixe d'un systeme de radiocommunications a sauts de frequence, a emetteurs banalises
US4485486A (en) * 1982-08-03 1984-11-27 Motorola, Inc. Method and apparatus for assigning duplex radio channels and scanning duplex radio channels assigned to mobile and portable radio telephones in a cellular radiotelephone communications system
US4549311A (en) * 1982-08-03 1985-10-22 Motorola, Inc. Method and apparatus for measuring the strength of a radio signal frequency
JPS5958928A (ja) * 1982-09-28 1984-04-04 Nec Corp 移動体電話交換方式
DE3246741C1 (de) * 1982-12-17 1984-07-05 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zum Auswaehlen eines Organisationskanals in einer beweglichen Funkstation eines Funkuebertragungssystems
EP0112409B1 (de) * 1982-12-21 1988-03-16 BBC Brown Boveri AG Funkübertragungsverfahren für ein Mobilfunksystem
US4475010A (en) * 1983-05-05 1984-10-02 At&T Bell Laboratories High density cellular mobile radio communications
US4556760A (en) * 1984-06-11 1985-12-03 Itt Corporation Hand-off filter for cellular mobile radio
US4608711A (en) * 1984-06-21 1986-08-26 Itt Corporation Cellular mobile radio hand-off utilizing voice channel
JPS617736A (ja) * 1984-06-22 1986-01-14 Nec Corp 無線中継方式
CA1230648A (en) * 1984-07-13 1987-12-22 Gerald P. Labedz Cellular voice and data radiotelephone system
GB8419003D0 (en) * 1984-07-25 1984-08-30 Racal Res Ltd Portable telephones
JPS6141239A (ja) * 1984-08-02 1986-02-27 Nec Corp 通話チヤンネル切替方式
JPS61157125A (ja) * 1984-12-28 1986-07-16 Nec Corp 移動体電話交換方式
JPS61212930A (ja) * 1985-03-19 1986-09-20 Oki Electric Ind Co Ltd 広域移動通信システムにおける移動機
JPS61251241A (ja) * 1985-04-29 1986-11-08 Sony Corp 自動車電話
US4682367A (en) * 1985-11-13 1987-07-21 General Electric Company Mobile radio communications system with join feature
FR2594276B1 (fr) * 1986-02-11 1988-11-10 Const Electro Et Systeme de radiotelephonie a changement de relais en cours de communication
US4694484A (en) * 1986-02-18 1987-09-15 Motorola, Inc. Cellular radiotelephone land station
US4696027A (en) * 1986-08-01 1987-09-22 Motorola, Inc. Handoff apparatus and method with interference reduction for a radio system
DE68923102T2 (de) * 1988-02-10 1995-11-02 Nippon Electric Co Kommunikationsverfahren und System mit hohem Durchsatz für eine digitale mobile Station beim Überfahren einer Zonengrenze während einer Verbindung.

Also Published As

Publication number Publication date
JP2586631B2 (ja) 1997-03-05
CA1280466C (en) 1991-02-19
US4811380A (en) 1989-03-07
ATE306796T1 (de) 2005-10-15
FI885520A0 (fi) 1988-11-28
DE3856308D1 (de) 1999-04-08
DE3856584T2 (de) 2006-05-18
EP0871340A2 (en) 1998-10-14
EP0325713B1 (en) 1999-03-03
DE3856308T2 (de) 1999-11-04
HK1016801A1 (en) 1999-11-05
EP0325713A3 (en) 1990-09-19
ES2131040T3 (es) 1999-07-16
GR3030388T3 (en) 1999-09-30
DE3856584D1 (de) 2006-02-23
EP0871340B1 (en) 2005-10-12
JPH01225236A (ja) 1989-09-08
ATE177280T1 (de) 1999-03-15
FI100084B (fi) 1997-09-15
EP0871340A3 (en) 1999-01-07
EP0325713A2 (en) 1989-08-02

Similar Documents

Publication Publication Date Title
FI885520A (fi) Cellsystem foer radiotelefontrafik foersedd med skydd foer samtalsfraonfall.
AU671249B2 (en) Method for preventing a dropped call during a handoff in a radiotelephone system
DK0427687T3 (da) Fremgangsmåde til udvælgelse af en basisstation, en radiokanal og en tidsspalte i en mobilstation
DK0593320T3 (da) Fremgangsmåde til overføring af en information omtidsfremrykning til en mobilenhed, som bevæger sigi et celledelt radiotele
RU95116588A (ru) Способ предотвращения потери вызова при перераспределении канала связи в радиотелефонной системе
AU1281492A (en) Neighbor-assisted handoff in a cellular communications system
KR920005522A (ko) 이동 무선 전화기 등록 방법 및 그 제어장치
KR920005521A (ko) 셀 이동 무선 전화 시스템에 있어서 신호의 신뢰성을 향상시키기 위한 방법 및 장치
ATE217138T1 (de) Verfahren zur regelung der sendeleistung in einem zellularfunksystem und einer teilnehmereinrichtung
EP0881852A3 (en) Low traffic handoff method for CDMA cellular network using different frequencies among base stations
RU2001113275A (ru) Передача обслуживания специализированного канала управления в системе связи многостанционного доступа с кодовым разделением каналов
BR9913551A (pt) Manutenção de chamada durante localização de posição
DK0589753T3 (da) Fremgangsmåde til transmission af en information om tidsmæssig fremrykning til en mobilenhed i et celledelt net sammen med
KR960020576A (ko) 통신 시스템
AR008498A1 (es) Procedimiento para el control de la llamada de piezas moviles inalambricas en estaciones base inalambricas de sistemas de telecomunicaciones movilesuniversales, en particular, de piezas moviles dect en estaciones base dect de sistemas de telecomunicaciones especificos de cap
JPH066294A (ja) 移動体通信システムにおけるシステム間ハンドオフ制御方式
JPS56165434A (en) Transmitting system for movement information of travelling object
JPS5847343A (ja) 移動通信方式における通話中チヤネル切替方法
JPS5610746A (en) Information reporting system for mobile communication
JPS566548A (en) Message transmission system for car telephone
JPS6448533A (en) Mobile communication system monitoring system
JPH08294160A (ja) 移動体通信方式の通信接続方法

Legal Events

Date Code Title Description
FG Patent granted

Owner name: MOTOROLA, INC.

MA Patent expired