FI109860B - Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta - Google Patents
Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta Download PDFInfo
- 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
- mobile station
- signal
- station
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 44
- 238000004891 communication Methods 0.000 claims description 15
- 238000012937 correction Methods 0.000 claims description 9
- 230000001413 cellular effect Effects 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 238000010295 mobile communication Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 201000002569 3-methylglutaconic aciduria type 5 Diseases 0.000 description 1
- VCBRBUKGTWLJOB-UHFFFAOYSA-N Chloranocryl Chemical compound CC(=C)C(=O)NC1=CC=C(Cl)C(Cl)=C1 VCBRBUKGTWLJOB-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003050 macronutrient Effects 0.000 description 1
- 235000021073 macronutrients Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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. 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
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)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87033792A | 1992-04-17 | 1992-04-17 | |
US87033792 | 1992-04-17 | ||
US9303412 | 1993-04-16 | ||
PCT/US1993/003412 WO1993021739A1 (en) | 1992-04-17 | 1993-04-16 | Mobile assisted handover using cdma |
Publications (3)
Publication Number | Publication Date |
---|---|
FI935638A0 FI935638A0 (fi) | 1993-12-15 |
FI935638A FI935638A (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 (13)
Country | Link |
---|---|
US (2) | US7212820B2 (pt) |
EP (2) | EP0566551B1 (pt) |
JP (1) | JPH06511609A (pt) |
AU (1) | AU670440B2 (pt) |
BR (1) | BR9305490A (pt) |
CA (1) | CA2111703A1 (pt) |
DE (1) | DE69325844T2 (pt) |
FI (1) | FI109860B (pt) |
HK (1) | HK1014307A1 (pt) |
MX (1) | MX9302150A (pt) |
NZ (1) | NZ252815A (pt) |
TW (1) | TW214621B (pt) |
WO (1) | WO1993021739A1 (pt) |
Families Citing this family (91)
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 |
JP3251292B2 (ja) * | 1993-09-24 | 2002-01-27 | ノキア テレコミュニカシオンス オサケ ユキチュア | セルラー遠隔通信システムの交換機間ソフトハンドオフ方法 |
FI934731A (fi) * | 1993-10-26 | 1995-04-27 | Nokia Telecommunications Oy | Menetelmä mittausviestien lähettämiseksi sekä liikkuva asema |
DE69536131D1 (de) * | 1994-02-09 | 2011-02-03 | Ntt Docomo Inc | Verfahren und System für CDMA mobile Kommunikation |
FI941072A (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 |
US7020111B2 (en) | 1996-06-27 | 2006-03-28 | Interdigital Technology Corporation | System for using rapid acquisition spreading codes for spread-spectrum communications |
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 |
US6885652B1 (en) | 1995-06-30 | 2005-04-26 | Interdigital Technology Corporation | Code division multiple access (CDMA) communication 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 |
ZA965340B (en) | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
AU712633B2 (en) * | 1995-08-31 | 1999-11-11 | Nokia Telecommunications Oy | A method for selecting the way to perform a handover, and a cellular radio system |
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 |
CN101442741B (zh) | 1997-04-24 | 2011-04-13 | 株式会社Ntt都科摩 | 移动通信方法和移动通信系统 |
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 (en) * | 1997-06-24 | 2001-01-17 | Lucent Technologies Inc. | Wireless telecommunications system for improving performance and compatibility |
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 |
ATE301911T1 (de) * | 1998-02-13 | 2005-08-15 | Qualcomm Inc | Verfahren und vorrichtung zum durchführen des weiterreichens in einem drahtlosen kommunikationssystem, wie beispielsweise hartes weiterreichen |
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 |
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 |
DE69933378T2 (de) * | 1998-06-30 | 2007-08-23 | Siemens Ag | Verfahren zur funkübertragung von daten und funkübertragungsgerät |
FI981575A (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 |
EP1039658B1 (en) * | 1999-02-26 | 2007-11-07 | Texas Instruments Incorporated | Method of operating a communication circuit |
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 (en) * | 1999-12-01 | 2012-01-18 | LG Electronics Inc. | Method for generating and transmitting optimal cell ID codes |
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 |
CN1290271C (zh) * | 2000-07-14 | 2006-12-13 | 三洋电机株式会社 | 无线信息终端和无线通信系统以及通信方法 |
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 |
AU2003212004A1 (en) | 2002-02-18 | 2003-09-04 | Sony Corporation | Wireless communication system, wireless communication device and wireless communication method, and computer program |
US7349390B2 (en) * | 2002-05-28 | 2008-03-25 | Ntt Docomo, Inc. | Packet transmission method and communication system |
KR101195335B1 (ko) * | 2003-07-17 | 2012-10-29 | 인터디지탈 테크날러지 코포레이션 | 보조 데이터의 전송 방법 및 시스템 |
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 (en) * | 2007-01-08 | 2008-07-24 | Huawei Technologies Co., Ltd. | Method and system for generating a set of target cells suitable for handover from a source cell in a cellular communication system |
US20100009686A1 (en) * | 2007-02-09 | 2010-01-14 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement for handling neighbouring cell lists in a communication system |
US8538342B2 (en) * | 2008-03-26 | 2013-09-17 | Nec Corporation | Radio station apparatus, radio resource control method, recording medium storing radio station control program, and radio communication system |
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)
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 (pt) * | 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 |
US5042082A (en) * | 1989-06-26 | 1991-08-20 | Telefonaktiebolaget L. M. Ericsson | Mobile assisted handoff |
KR950013303B1 (ko) * | 1989-04-17 | 1995-11-02 | 테레포오낙티이에보라겟트 엘 엠 앨리크썬 | 아날로그 무선채널과 디지탈 무선채널을 지닌 이동무선시스템에서 접속을 유지하는 방법 |
US4930139A (en) | 1989-05-31 | 1990-05-29 | O'neill Communications, Inc. | Spread spectrum communication 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 |
US5109390A (en) * | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver 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 (en) * | 1990-12-05 | 1998-06-30 | Leo Strawczynski | Inter-cell call hand-over in radio communication systems with dynamic channel allocation |
US5218619A (en) * | 1990-12-17 | 1993-06-08 | Ericsson Ge Mobile Communications Holding, Inc. | CDMA subtractive demodulation |
US5151919A (en) * | 1990-12-17 | 1992-09-29 | Ericsson-Ge Mobile Communications Holding Inc. | Cdma subtractive demodulation |
US5128959A (en) * | 1991-02-22 | 1992-07-07 | Motorola, Inc. | Variable bandwidth CDMA radio system |
GB2269966B (en) * | 1991-04-01 | 1995-08-02 | Motorola Inc | Target channel verification in a radiotelephone system |
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 |
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 |
US5353352A (en) * | 1992-04-10 | 1994-10-04 | Ericsson Ge Mobile Communications Inc. | Multiple access coding for radio communications |
US5239557A (en) * | 1992-04-10 | 1993-08-24 | Ericsson/Ge Mobile Communications | Discountinuous CDMA reception |
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. |
US5345598A (en) * | 1992-04-10 | 1994-09-06 | Ericsson-Ge Mobile Communications Holding, Inc. | Duplex power control system in a communication network |
TW214620B (en) * | 1992-04-13 | 1993-10-11 | Ericsson Ge Mobile Communicat | Calling channel in CDMA communications system |
US5295153A (en) * | 1992-04-13 | 1994-03-15 | Telefonaktiebolaget L M Ericsson | CDMA frequency allocation |
-
1993
- 1993-04-07 EP EP93850073A patent/EP0566551B1/en not_active Expired - Lifetime
- 1993-04-07 EP EP98204073A patent/EP0917308A1/en not_active Withdrawn
- 1993-04-07 DE DE69325844T patent/DE69325844T2/de not_active Expired - Lifetime
- 1993-04-14 MX MX9302150A patent/MX9302150A/es unknown
- 1993-04-16 WO PCT/US1993/003412 patent/WO1993021739A1/en active IP Right Grant
- 1993-04-16 NZ NZ252815A patent/NZ252815A/en unknown
- 1993-04-16 AU AU42833/93A patent/AU670440B2/en not_active Expired
- 1993-04-16 CA CA002111703A patent/CA2111703A1/en not_active Abandoned
- 1993-04-16 JP JP5518529A patent/JPH06511609A/ja active Pending
- 1993-04-16 BR BR9305490A patent/BR9305490A/pt not_active IP Right Cessation
- 1993-04-23 TW TW082103136A patent/TW214621B/zh active
- 1993-12-15 FI FI935638A patent/FI109860B/fi active
-
1995
- 1995-02-02 US US08/384,456 patent/US7212820B2/en not_active Expired - Fee Related
-
1998
- 1998-12-24 HK HK98115609A patent/HK1014307A1/xx not_active IP Right Cessation
-
2003
- 2003-08-29 US US10/651,880 patent/US7248874B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NZ252815A (en) | 1996-05-28 |
HK1014307A1 (en) | 1999-09-24 |
FI935638A (fi) | 1994-01-28 |
US7212820B2 (en) | 2007-05-01 |
EP0566551B1 (en) | 1999-08-04 |
US20030013447A1 (en) | 2003-01-16 |
TW214621B (en) | 1993-10-11 |
BR9305490A (pt) | 1994-10-11 |
DE69325844D1 (de) | 1999-09-09 |
EP0566551A3 (pt) | 1994-01-05 |
AU4283393A (en) | 1993-11-18 |
DE69325844T2 (de) | 2000-08-31 |
FI935638A0 (fi) | 1993-12-15 |
WO1993021739A1 (en) | 1993-10-28 |
CA2111703A1 (en) | 1993-10-28 |
US7248874B2 (en) | 2007-07-24 |
EP0566551A2 (en) | 1993-10-20 |
AU670440B2 (en) | 1996-07-18 |
MX9302150A (es) | 1994-08-31 |
US20040038682A1 (en) | 2004-02-26 |
JPH06511609A (ja) | 1994-12-22 |
EP0917308A1 (en) | 1999-05-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI109860B (fi) | Matkaviestimen tukema kanavanvaihto, joka käyttää CDMA:ta | |
US6078570A (en) | Mobile assisted hard hand-off for a code division multiple access (CDMA) system | |
US7389112B2 (en) | Mobile terminal for optimal spectrum utilization in cellular systems | |
KR100200262B1 (ko) | 무선 전화 시스템에서의 핸드오프시 통화 단절을 방지하는 방법 | |
CA2024216C (en) | Communications system | |
KR100415355B1 (ko) | 이동 통신 시스템의 집중형 무선 네트워크 제어 방법 및 장치 | |
CA2052960C (en) | Handoff procedure that minimizes disturbances to dtmf signalling in a cellular radio system | |
US5901145A (en) | Mobile station handoff between a spread spectrum communications system and a frequency division communications system | |
JP2003522443A (ja) | ホットスポットに到達範囲を調整した追加の周波数を配置して干渉を低減する方法 | |
JPH03268697A (ja) | 移動無線通信方式 | |
WO1998053631A1 (fr) | Systeme radiocellulaire permettant aux stations mobiles de communiquer par l'intermediaire des stations de base connectees via un canal radio cdma, et station de base et station mobile utilisees dans ce systeme | |
WO1997014261A1 (en) | A system and method for hyperband cell interoperability in a cellular telecommunications network | |
EP0978211A2 (en) | Channel selection method in gsm/dcs-based cellular radio network | |
EP1083759B1 (en) | Communication terminal device and base station device | |
JP2003304569A (ja) | ハンドオフ方法、移動端末 | |
KR100345973B1 (ko) | 부호 분할 다원 접속 이동 통신 방법 및 시스템 | |
KR20000000723A (ko) | 셀룰러 이동 통신 시스템에서 소프터 핸드오프 방법 | |
KR20000047005A (ko) | 옥내 셀 환경에서의 이동 승강기 기지국 시스템 및 그의 통화과정 |