FI109860B - Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta - Google Patents

Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta Download PDF

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Publication number
FI109860B
FI109860B FI935638A FI935638A FI109860B FI 109860 B FI109860 B FI 109860B FI 935638 A FI935638 A FI 935638A FI 935638 A FI935638 A FI 935638A FI 109860 B FI109860 B FI 109860B
Authority
FI
Finland
Prior art keywords
base station
code
signal
mobile station
station
Prior art date
Application number
FI935638A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI935638A0 (fi
FI935638L (fi
Inventor
Paul W Dent
Bjoern Gudmundson
Bengt Persson
Original Assignee
Ericsson Telefon Ab L M
Ericsson Ge Mobile Communicat
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 Ericsson Telefon Ab L M, Ericsson Ge Mobile Communicat filed Critical Ericsson Telefon Ab L M
Publication of FI935638A0 publication Critical patent/FI935638A0/fi
Publication of FI935638L publication Critical patent/FI935638L/fi
Application granted granted Critical
Publication of FI109860B publication Critical patent/FI109860B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • 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
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • 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
    • H04W36/16—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
FI935638A 1992-04-17 1993-12-15 Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta FI109860B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US87033792A 1992-04-17 1992-04-17
US87033792 1992-04-17
PCT/US1993/003412 WO1993021739A1 (fr) 1992-04-17 1993-04-16 Commutation assistee mobile par amdc
US9303412 1993-04-16

Publications (3)

Publication Number Publication Date
FI935638A0 FI935638A0 (fi) 1993-12-15
FI935638L FI935638L (fi) 1994-01-28
FI109860B true FI109860B (fi) 2002-10-15

Family

ID=25355174

Family Applications (1)

Application Number Title Priority Date Filing Date
FI935638A FI109860B (fi) 1992-04-17 1993-12-15 Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta

Country Status (12)

Country Link
US (2) US7212820B2 (fr)
EP (2) EP0566551B1 (fr)
JP (1) JPH06511609A (fr)
AU (1) AU670440B2 (fr)
BR (1) BR9305490A (fr)
CA (1) CA2111703A1 (fr)
DE (1) DE69325844T2 (fr)
FI (1) FI109860B (fr)
MX (1) MX9302150A (fr)
NZ (1) NZ252815A (fr)
TW (1) TW214621B (fr)
WO (1) WO1993021739A1 (fr)

Families Citing this family (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388102A (en) * 1993-07-01 1995-02-07 At&T Corp. Arrangement for synchronizing a plurality of base stations
DE69330647T2 (de) * 1993-09-24 2002-07-04 Nokia Networks Oy, Espoo Sanftes weiterreichen zwischen vermittlungen in einem zellularen kommunikationssystem
FI934731A7 (fi) * 1993-10-26 1995-04-27 Nokia Telecommunications Oy Menetelmä mittausviestien lähettämiseksi sekä liikkuva asema
DE69535838D1 (de) * 1994-02-09 2008-10-23 Nippon Telegraph & Telephone Verfahren und Gerät für CDMA mobile Kommunikationen
FI941072A7 (fi) * 1994-03-07 1995-09-08 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin sekä vastaanotin
FI107854B (fi) * 1994-03-21 2001-10-15 Nokia Networks Oy Menetelmä häiriöiden poistamiseksi CDMA-solukkoverkossa
JP2904335B2 (ja) * 1994-04-27 1999-06-14 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および移動局装置
US5805999A (en) * 1995-02-15 1998-09-08 Nec Corporation Cordless phone system and a method for estimating location of a cordless phone in said cordless phone system
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5841768A (en) * 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
WO1997008910A1 (fr) * 1995-08-31 1997-03-06 Nokia Telecommunications Oy Procede de selection de la maniere d'effectuer un transfert et systeme de radiocommunications cellulaire
US5864578A (en) * 1996-04-29 1999-01-26 Golden Bridge Technology, Inc. Matched filter-based handoff method and apparatus
GB2314734B (en) * 1996-06-28 2000-11-01 Motorola Ltd Method and apparatus for monitoring channels
US5920550A (en) * 1996-10-11 1999-07-06 Motorola, Inc. System, method, and apparatus for soft handoff
FR2755338B1 (fr) * 1996-10-24 1999-01-08 Matra Transport International Systeme cellulaire de transmission radioelectrique d'information entre une infrastructure et des mobiles
US5801783A (en) * 1996-10-31 1998-09-01 Lucent Technologies Inc. Remote accurate frequency generation using a numerically controlled oscillator
FI105960B (fi) * 1996-12-04 2000-10-31 Nokia Networks Oy Solukkoradiojärjestelmä
US5854785A (en) * 1996-12-19 1998-12-29 Motorola, Inc. System method and wireless communication device for soft handoff
US5987326A (en) * 1997-02-11 1999-11-16 Qualcomm Incorporated Transmit power reduction for a high speed CDMA link in soft handoff
EP1841273A3 (fr) 1997-04-24 2013-12-18 Ntt Mobile Communications Network Inc. Procédé et système de communication mobile
JPH10322760A (ja) * 1997-05-21 1998-12-04 Toshiba Corp セルラ無線システム
JP3058261B2 (ja) * 1997-05-28 2000-07-04 日本電気株式会社 Ｃｄｍａハンドオフ方式及びそれを用いた移動通信セルラーシステムとその基地局
EP0888022A3 (fr) * 1997-06-24 2001-01-17 Lucent Technologies Inc. Système de communication sans fil pour améliorer la performance et la compatibilité
JP2945357B2 (ja) * 1997-07-19 1999-09-06 松下電器産業株式会社 Ｃｄｍａ方式の移動局装置及び制御局装置
US6307849B1 (en) * 1997-09-08 2001-10-23 Qualcomm Incorporated Method and system for changing forward traffic channel power allocation during soft handoff
US6603751B1 (en) 1998-02-13 2003-08-05 Qualcomm Incorporated Method and system for performing a handoff in a wireless communication system, such as a hard handoff
ES2245822T3 (es) * 1998-02-13 2006-01-16 Qualcomm Incorporated Procedimiento y sistema para llevar a cabo una transferencia, tal como una transferencia entre sistemas distintos, en un sistema de comunicacion inalambrico.
GB2337413A (en) * 1998-05-15 1999-11-17 Nokia Mobile Phones Ltd alternative Channel Measurement in a Radio Communication system
US20030194033A1 (en) 1998-05-21 2003-10-16 Tiedemann Edward G. Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system
JP2002519969A (ja) * 1998-06-30 2002-07-02 シーメンス アクチエンゲゼルシヤフト 無線信号を使用してデータを通信する方法および無線通信装置
FI981575L (fi) * 1998-07-08 2000-01-09 Nokia Networks Oy Menetelmä ja järjestelmä digitaalisen signaalin siirtämiseksi
JP3204310B2 (ja) * 1998-08-12 2001-09-04 日本電気株式会社 Ｃｄｍａ移動通信システムおよびその下り送信電力制御方法
US6633554B1 (en) * 1998-09-01 2003-10-14 Samsung Electronics Co., Ltd. System and method for soft handoff setup during system access idle handoff in a wireless network
US6587446B2 (en) 1999-02-11 2003-07-01 Qualcomm Incorporated Handoff in a wireless communication system
JP4542221B2 (ja) * 1999-02-26 2010-09-08 テキサス インスツルメンツ インコーポレイテツド Ｓｔｔｄ及びｓｓｄｔを用いるセル選択
US6862275B1 (en) 1999-02-26 2005-03-01 Texas Instruments Incorporated Cell selection with STTD and SSDT
GB2350751B (en) * 1999-06-01 2003-11-26 Motorola Ltd Handover in a cellular communications system
KR100695829B1 (ko) * 1999-10-22 2007-03-16 유티스타콤코리아 유한회사 이동통신 시스템에서 동기식 기지국과 비동기식 기지국간핸드오프 처리방법
JP4276399B2 (ja) * 1999-11-24 2009-06-10 富士通株式会社 基地局制御局装置、無線端末装置および無線通信システム
EP2088812B1 (fr) * 1999-12-01 2012-01-18 LG Electronics Inc. Procédé de génération et de transmission de codes ID de cellule optimale
FR2804560B1 (fr) * 2000-01-31 2006-08-04 Commissariat Energie Atomique Procede de radiocommunications amrc avec codes d'acces et recepteur correspondant
US20010036834A1 (en) * 2000-03-03 2001-11-01 Subir Das Supporting fast intra-domain handoffs and paging in wireless cellular networks
GB0012623D0 (en) * 2000-05-25 2000-07-12 Ericsson Telefon Ab L M Ip address allocation in a mobile telecommunications network
US20020128032A1 (en) * 2000-06-16 2002-09-12 Akito Fukui Radio communication system
EP1317081A4 (fr) * 2000-07-14 2009-12-02 Sanyo Electric Co Terminal d'informations et systeme de communication sans fil, procede et programme de communication
JP2002111686A (ja) * 2000-10-04 2002-04-12 Sony Corp 通信方法および通信装置
US6847622B1 (en) * 2000-11-15 2005-01-25 Motorola, Inc. Methods and apparatus for providing multiple wireless communication services having different bit rates
GB2370452B (en) * 2000-12-19 2004-10-20 Inmarsat Ltd Communication method and apparatus
JP3496646B2 (ja) 2001-02-22 2004-02-16 日本電気株式会社 Ｃｄｍａ方式における基地局指定システム及び基地局指定方法
JP3717798B2 (ja) * 2001-03-26 2005-11-16 株式会社エヌ・ティ・ティ・ドコモ ハンドオーバ制御方法及び装置、並びに移動通信システム
KR100777878B1 (ko) * 2001-09-05 2007-11-21 엘지노텔 주식회사 소프트 핸드오버 결정 방법
US7379434B2 (en) * 2001-10-19 2008-05-27 Koninklijke Philips Electronics N.V. Radio communication system
KR100754552B1 (ko) * 2001-12-28 2007-09-05 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서고속 공통 제어 채널 송수신 장치 및 방법
WO2003069925A1 (fr) 2002-02-18 2003-08-21 Sony Corporation Systeme, dispositif et procede de communication sans fil, et programme informatique associe
US7349390B2 (en) * 2002-05-28 2008-03-25 Ntt Docomo, Inc. Packet transmission method and communication system
GEP20115194B (en) * 2003-07-17 2011-04-11 Interdigital Tech Corp Method and system for delivery of assistance data
JP2005117110A (ja) * 2003-10-02 2005-04-28 Ntt Docomo Inc 移動局
US6990324B2 (en) * 2004-04-15 2006-01-24 Flarion Technologies, Inc. Methods and apparatus for selecting between multiple carriers using a single receiver chain tuned to a single carrier
US20050250511A1 (en) * 2004-05-05 2005-11-10 Weimin Xiao Method for rate control signaling to facilitate UE uplink data transfer
KR100957408B1 (ko) * 2004-06-17 2010-05-11 삼성전자주식회사 광대역 무선 분할 다중 접속 통신 시스템에서 핸드오버 지원을 위한 방법 및 장치
US7738423B2 (en) * 2004-07-09 2010-06-15 Alcatel-Lucent Usa Inc. Cell switching and packet combining in a wireless communication system
US7693521B1 (en) * 2004-08-04 2010-04-06 Sprint Spectrum L.P. Method and system for mobile station handoff
US8494542B2 (en) * 2004-12-21 2013-07-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for mobile station-assisted load balancing in wireless packet data networks
US7489943B2 (en) * 2004-12-29 2009-02-10 Alcatel-Lucent Usa Inc. Scheduling calls in downlink transmissions
US8254347B2 (en) * 2004-12-31 2012-08-28 Alcatel Lucent Methods and devices for associating a mobile device to access points within a WLAN
US20060183516A1 (en) * 2005-02-16 2006-08-17 Ham Byung I Light therapy element incorporated mobile communication device
US7302265B1 (en) 2005-03-16 2007-11-27 Sprint Spectrum L.P. Method of selecting carrier frequency for call origination
US9306657B2 (en) * 2005-04-08 2016-04-05 The Boeing Company Soft handoff method and apparatus for mobile vehicles using directional antennas
US8060098B2 (en) * 2006-01-13 2011-11-15 Research In Motion Limited Handover methods and apparatus for mobile communication devices
US8150410B2 (en) * 2006-06-16 2012-04-03 Samsung Electronics Co., Ltd. System and method for a fractional loading scheme for broadcast/multicast traffic
GB2440982A (en) * 2006-08-18 2008-02-20 Fujitsu Ltd Wireless multi-hop communication system
US20080101301A1 (en) * 2006-10-27 2008-05-01 Motorola, Inc. Handover in a cellular communication system
US8358633B1 (en) * 2006-11-08 2013-01-22 Sprint Spectrum L.P. Dynamic determination of EV-DO control-channel bit rate based on forward-link timeslot utilization
US20080139130A1 (en) * 2006-12-08 2008-06-12 Wen Zhao System and method for initiating communication in a cellular network
WO2008086647A1 (fr) * 2007-01-08 2008-07-24 Huawei Technologies Co., Ltd. Procédé et système de génération d'un ensemble de cellules cibles appropriées pour un transfert à partir d'une cellule source dans un système de communication cellulaire
EP2151134A1 (fr) * 2007-02-09 2010-02-10 Telefonaktiebolaget LM Ericsson (PUBL) Procédé et système de gestion de listes de cellules voisines dans un système de communication
CN101965744B (zh) * 2008-03-26 2013-08-28 日本电气株式会社 无线电台站装置、无线电资源控制方法、存储无线电台站控制程序的记录介质以及无线电通信系统
US8583123B2 (en) * 2008-07-21 2013-11-12 Mediatek Inc. Methods for controlling radio links in a cellular communication system
US8160034B1 (en) 2008-09-09 2012-04-17 Sprint Spectrum L.P. Dynamic determination of EV-DO control-channel bit rate based on forward-link-timeslot utilization, control-channel occupancy, and amount of buffered forward-link traffic data
US8964692B2 (en) 2008-11-10 2015-02-24 Qualcomm Incorporated Spectrum sensing of bluetooth using a sequence of energy detection measurements
JP4706879B2 (ja) * 2008-12-26 2011-06-22 日本電気株式会社 無線通信システム、基地局装置、およびチャネル割当方法
JP5293199B2 (ja) * 2009-01-08 2013-09-18 富士通株式会社 無線通信装置、制御装置、移動通信システムおよび無線通信方法
US20130121205A1 (en) * 2009-01-26 2013-05-16 Floyd Backes Method for Selecting an Optimum Access Point in a Wireless Network on a Common Channel
US9166677B2 (en) * 2010-01-19 2015-10-20 Qualcomm Incorporated Method and apparatus for associating a relay in wireless communications
US9084208B2 (en) * 2010-02-15 2015-07-14 Telefonaktiebolaget L M Ericsson (Publ) Energy-efficient network methods and apparatus
US9042247B2 (en) * 2011-12-06 2015-05-26 Wi-Lan Labs, Inc. Systems and methods for preserving application identification information on handover in a communication network
US9949205B2 (en) 2012-05-26 2018-04-17 Qualcomm Incorporated Smart battery wear leveling for audio devices
US9900872B2 (en) 2013-04-17 2018-02-20 Futurewei Technologies, Inc. Systems and methods for adaptive transmissions in wireless network

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134071A (en) 1971-07-19 1979-01-09 Licentia Patent-Verwaltungs-G.M.B.H. SSMA Data transmission system
US4293953A (en) 1979-12-28 1981-10-06 The United States Of America As Represented By The Secretary Of The Army Bi-orthogonal PCM communications system employing multiplexed noise codes
US4644560A (en) 1982-08-13 1987-02-17 Hazeltine Corporation Intranetwork code division multiple access communication system
US4470138A (en) 1982-11-04 1984-09-04 The United States Of America As Represented By The Secretary Of The Army Non-orthogonal mobile subscriber multiple access system
DE3607687A1 (de) * 1986-03-08 1987-09-10 Philips Patentverwaltung Verfahren und schaltungsanordnung zum weiterschalten einer funkverbindung in eine andere funkzelle eines digitalen funkuebertragungssystems
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
JPH0693650B2 (ja) 1988-08-05 1994-11-16 日本電信電話株式会社 移動体位置検出方法
SE463540B (sv) 1988-09-19 1990-12-03 Ericsson Telefon Ab L M Saett foer att i ett radiokommunikationssystem digitalisera godtyckliga radiosignaler samt anordning foer utoevande av saettet
CH676179A5 (fr) 1988-09-29 1990-12-14 Ascom Zelcom Ag
US4930140A (en) 1989-01-13 1990-05-29 Agilis Corporation Code division multiplex system using selectable length spreading code sequences
WO1990013187A1 (fr) * 1989-04-17 1990-11-01 Telefonaktiebolaget Lm Ericsson Procede pour assurer une connexion etablie dans un systeme de radio mobile comprenant des canaux radio analogiques et numeriques
US5042082A (en) * 1989-06-26 1991-08-20 Telefonaktiebolaget L. M. Ericsson Mobile assisted handoff
US4930139A (en) 1989-05-31 1990-05-29 O'neill Communications, Inc. Spread spectrum communication system
US5109390A (en) 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
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
US5056109A (en) 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5022049A (en) 1989-11-21 1991-06-04 Unisys Corp. Multiple access code acquisition system
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
SE466426B (sv) * 1990-07-06 1992-02-10 Ericsson Telefon Ab L M Foerfarande vid handoff i ett mobilradiosystem
US5091942A (en) 1990-07-23 1992-02-25 Ericsson Ge Mobile Communications Holding, Inc. Authentication system for digital cellular communications
CA2031551C (fr) * 1990-12-05 1998-06-30 Leo Strawczynski Commutation des appels entre les cellules dans les systemes de radiocommunication a attribution dynamique des canaux
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5128959A (en) * 1991-02-22 1992-07-07 Motorola, Inc. Variable bandwidth CDMA radio system
WO1992017953A1 (fr) * 1991-04-01 1992-10-15 Motorola, Inc. Verification de voie cible pour systeme radiotelephonique
US5164958A (en) * 1991-05-22 1992-11-17 Cylink Corporation Spread spectrum cellular handoff method
US5150075A (en) * 1991-06-03 1992-09-22 Motorola, Inc. Power amplifier ramp up method and apparatus
US5184347A (en) * 1991-07-09 1993-02-02 At&T Bell Laboratories Adaptive synchronization arrangement
US5179571A (en) * 1991-07-10 1993-01-12 Scs Mobilecom, Inc. Spread spectrum cellular handoff apparatus and method
US5159608A (en) * 1991-08-28 1992-10-27 Falconer David D Method and apparatus for using orthogonal coding in a communication system
US5267261A (en) * 1992-03-05 1993-11-30 Qualcomm Incorporated Mobile station assisted soft handoff in a CDMA cellular communications system
US5237586A (en) * 1992-03-25 1993-08-17 Ericsson-Ge Mobile Communications Holding, Inc. Rake receiver with selective ray combining
US5239557A (en) * 1992-04-10 1993-08-24 Ericsson/Ge Mobile Communications Discountinuous CDMA reception
US5345598A (en) 1992-04-10 1994-09-06 Ericsson-Ge Mobile Communications Holding, Inc. Duplex power control system in a communication network
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
MX9301888A (es) * 1992-04-10 1993-11-30 Ericsson Telefon Ab L M Acceso multiple de division de tiempo para acceso de un movil en un sistema de acceso multiple de division de codigo.
US5353352A (en) * 1992-04-10 1994-10-04 Ericsson Ge Mobile Communications Inc. Multiple access coding for radio communications
US5295153A (en) * 1992-04-13 1994-03-15 Telefonaktiebolaget L M Ericsson CDMA frequency allocation
TW214620B (en) 1992-04-13 1993-10-11 Ericsson Ge Mobile Communicat Calling channel in CDMA communications system

Also Published As

Publication number Publication date
MX9302150A (es) 1994-08-31
JPH06511609A (ja) 1994-12-22
TW214621B (en) 1993-10-11
US20030013447A1 (en) 2003-01-16
CA2111703A1 (fr) 1993-10-28
DE69325844T2 (de) 2000-08-31
FI935638A0 (fi) 1993-12-15
AU4283393A (en) 1993-11-18
US7212820B2 (en) 2007-05-01
EP0566551A3 (fr) 1994-01-05
US7248874B2 (en) 2007-07-24
EP0566551B1 (fr) 1999-08-04
EP0917308A1 (fr) 1999-05-19
EP0566551A2 (fr) 1993-10-20
NZ252815A (en) 1996-05-28
DE69325844D1 (de) 1999-09-09
WO1993021739A1 (fr) 1993-10-28
US20040038682A1 (en) 2004-02-26
FI935638L (fi) 1994-01-28
BR9305490A (pt) 1994-10-11
HK1014307A1 (en) 1999-09-24
AU670440B2 (en) 1996-07-18

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