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ES2149816T3 - Encriptacion y desencriptacion sincronas continuas durante las transferencias en un sistema de comunicaciones inalambricas. - Google Patents

Encriptacion y desencriptacion sincronas continuas durante las transferencias en un sistema de comunicaciones inalambricas.

Info

Publication number
ES2149816T3
ES2149816T3 ES93911216T ES93911216T ES2149816T3 ES 2149816 T3 ES2149816 T3 ES 2149816T3 ES 93911216 T ES93911216 T ES 93911216T ES 93911216 T ES93911216 T ES 93911216T ES 2149816 T3 ES2149816 T3 ES 2149816T3
Authority
ES
Spain
Prior art keywords
encryption
esc
wireless communications
communications system
fcu
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
ES93911216T
Other languages
English (en)
Inventor
Charles John Malek
Greg Gilbert Gravunder
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.)
Motorola Solutions Inc
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
Application filed by Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ES2149816T3 publication Critical patent/ES2149816T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H04W12/033—Protecting confidentiality, e.g. by encryption of the user plane, e.g. user's traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/80—Wireless
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transceivers (AREA)
  • Small-Scale Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Facsimile Transmission Control (AREA)

Abstract

SE MUESTRA EN UN SISTEMA DE COMUNICACION INALAMBRICA QUE COMPRENDE UNA PLURALIDAD DE UNIDADES DE COMUNICACION (FCUS) (102) Y UNIDADES DE COMUNICACION PORTATIL (PCUS), COMPRENDIENDO CADA UNO UN CONTADOR DE SINCRONIZACION DE ENCRIPTADO (ESC) (314, 414), TENIENDO EL PCU (120) Y EL FCU (102) UN FORMATO DE TRANSMISION DIGITAL (210), UN METODO DE MANTENIMIENTO DEL ENCRIPTADO Y DESENCRIPTADO A TRAVES DE UN MANOS LIBRES, QUE COMPRENDE LOS PASOS DE (A) CARGAR (708) DURANTE UNA INICIACION DE MANOS LIBRES UN VALOR D CONTINUACION DURANTE UN SEGUNDO FCU ESC; Y B) INCREMENTAR (709) SINCRONICAMENTE EL SEGUNDO FCUESC Y EL PCU ESC, EMPEZANDO DESDE EL VALOR DE CONTINUACION Y COMENZANDO A LA VEZ AL DE LA REALIZACION DE MANOS LIBRES.
ES93911216T 1992-05-22 1993-05-11 Encriptacion y desencriptacion sincronas continuas durante las transferencias en un sistema de comunicaciones inalambricas. Expired - Lifetime ES2149816T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/888,685 US5243653A (en) 1992-05-22 1992-05-22 Method and apparatus for maintaining continuous synchronous encryption and decryption in a wireless communication system throughout a hand-off

Publications (1)

Publication Number Publication Date
ES2149816T3 true ES2149816T3 (es) 2000-11-16

Family

ID=25393671

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93911216T Expired - Lifetime ES2149816T3 (es) 1992-05-22 1993-05-11 Encriptacion y desencriptacion sincronas continuas durante las transferencias en un sistema de comunicaciones inalambricas.

Country Status (14)

Country Link
US (1) US5243653A (es)
EP (1) EP0641505B1 (es)
CN (1) CN1030879C (es)
AT (1) ATE195043T1 (es)
CA (1) CA2135913C (es)
DE (1) DE69329111T2 (es)
DK (1) DK0641505T3 (es)
ES (1) ES2149816T3 (es)
GR (1) GR3034578T3 (es)
MX (1) MX9302947A (es)
MY (1) MY109185A (es)
PT (1) PT641505E (es)
TW (1) TW223207B (es)
WO (1) WO1993025021A1 (es)

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US5369706A (en) * 1993-11-05 1994-11-29 United Technologies Automotive, Inc. Resynchronizing transmitters to receivers for secure vehicle entry using cryptography or rolling code
US5787078A (en) * 1994-03-09 1998-07-28 Alcatel N.V. Frame Synchronization method
US5592555A (en) * 1994-04-12 1997-01-07 Advanced Micro Devices, Inc. Wireless communications privacy method and system
US5485462A (en) * 1994-08-25 1996-01-16 Helm; David Method of facilitating an audio source change in a digital radio communication system
US5694473A (en) * 1996-05-17 1997-12-02 Motorola, Inc. Decryption of retransmitted data in an encrypted communication system
US5778075A (en) * 1996-08-30 1998-07-07 Telefonaktiebolaget, L.M. Ericsson Methods and systems for mobile terminal assisted handover in an private radio communications network
GB9717868D0 (en) * 1997-08-23 1997-10-29 Philips Electronics Nv Wireless network
US6081600A (en) * 1997-10-03 2000-06-27 Motorola, Inc. Method and apparatus for signaling privacy in personal communications systems
US6381250B1 (en) 1998-01-23 2002-04-30 Innovative Communications Technologies, Inc. Capacity allocation system using semi-autonomous network elements to implement and control a transmission schedule
US6426959B1 (en) 1998-01-20 2002-07-30 Innovative Communications Technologies, Inc. System and method for facilitating component management in a multiple vendor satellite communications network
US6418130B1 (en) 1999-01-08 2002-07-09 Telefonaktiebolaget L M Ericsson (Publ) Reuse of security associations for improving hand-over performance
US6778670B1 (en) * 1999-08-13 2004-08-17 Legerity, Inc. Method and apparatus for encryption and decryption
US7023833B1 (en) 1999-09-10 2006-04-04 Pulse-Link, Inc. Baseband wireless network for isochronous communication
US7088795B1 (en) 1999-11-03 2006-08-08 Pulse-Link, Inc. Ultra wide band base band receiver
US6909785B1 (en) * 1999-11-11 2005-06-21 Qualcomm, Inc. Method and apparatus for efficient irregular synchronization of a stream cipher
US6771776B1 (en) * 1999-11-11 2004-08-03 Qualcomm Incorporated Method and apparatus for re-synchronization of a stream cipher during handoff
US7131006B1 (en) * 1999-11-15 2006-10-31 Verizon Laboratories Inc. Cryptographic techniques for a communications network
FI109639B (fi) * 1999-12-22 2002-09-13 Nokia Corp Menetelmä salausluvun välittämiseksi tiedonsiirtojärjestelmässä ja tiedonsiirtojärjestelmä
FR2809579B1 (fr) * 2000-05-23 2003-07-04 Nortel Matra Cellular Procede de controle d'un canal entre un terminal radio et une infrastructure de radiocommunication cellulaire, et reseau d'acces mettant en oeuvre un tel procede
FR2809576B1 (fr) * 2000-05-23 2002-11-15 Nortel Matra Cellular Procede de controle d'un canal entre un terminal radio et une infrastructure de radiocommunication cellulaire, et reseau d'acces mettant en oeuvre un tel procede
US7460853B2 (en) * 2000-10-12 2008-12-02 Sony Corporation Wireless module security system and method
US7020118B2 (en) * 2000-10-13 2006-03-28 Sony Corporation System and method for activation of a wireless module
US20020080741A1 (en) * 2000-10-13 2002-06-27 Akihiko Toyoshima Multiple wireless format phone system and method
US6907456B2 (en) 2000-10-13 2005-06-14 Sony Corporation Default portal site access with wireless module
US7230939B2 (en) * 2000-10-13 2007-06-12 Sony Corporation Home network using wireless module
US7890947B2 (en) * 2000-10-13 2011-02-15 Sony Corporation System, method and apparatus for embedded firmware code update
DE10056361A1 (de) * 2000-11-14 2002-05-23 Philips Corp Intellectual Pty Drahtloses Netzwerk zur Übermittlung von Parametern für eine verschlüsselte Datenübertragung
AU2002232807A1 (en) * 2000-12-19 2002-07-01 At And T Wireless Services, Inc. Synchronization of encryption in a wireless communication system
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JP3687576B2 (ja) * 2001-07-11 2005-08-24 日本電気株式会社 Ａｔｍセル／パケットスイッチ及び該スイッチを用いた通信制御方法
US7336952B2 (en) * 2001-10-24 2008-02-26 Qualcomm, Incorporated Method and system for hard handoff in a broadcast communication system
KR100416232B1 (ko) * 2001-12-12 2004-01-31 한국전자통신연구원 이중화된 노드들의 씨엠에스 보안 서비스 시스템 및 제공방법
US7050947B2 (en) * 2002-01-04 2006-05-23 Siemens Vdo Automotive Corporation Remote control communication including secure synchronization
US20040236939A1 (en) * 2003-02-20 2004-11-25 Docomo Communications Laboratories Usa, Inc. Wireless network handoff key
GB0322683D0 (en) * 2003-09-27 2003-10-29 Koninkl Philips Electronics Nv Data encryption method and apparatus
CN100388849C (zh) * 2003-12-18 2008-05-14 中国电子科技集团公司第三十研究所 数字蜂窝移动通信系统用户切换时密钥的管理分配传递方法
US8543723B2 (en) * 2004-07-27 2013-09-24 Sony Corporation Home network system with transmission error recovery
GB2418575B (en) * 2004-09-22 2007-01-24 Motorola Inc Receiver and method of receiving an encrypted communication
CN101237381B (zh) * 2007-02-02 2010-07-07 华为技术有限公司 一种传送start值的方法及系统
US8249616B2 (en) * 2007-08-23 2012-08-21 Texas Instruments Incorporated Satellite (GPS) assisted clock apparatus, circuits, systems and processes for cellular terminals on asynchronous networks
CN101472305B (zh) * 2007-12-26 2012-01-25 电信科学技术研究院 一种实现小区切换的方法、系统及装置
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US4893308A (en) * 1986-09-03 1990-01-09 Motorola, Inc. Method and apparatus for time companding a digital voice signal
SE465797B (sv) * 1990-03-07 1991-10-28 Ericsson Telefon Ab L M Foerfarande att oeverfoera synkroniseringsinformation vid krypterad oeverfoering i ett mobilradiosystem
US5081679A (en) * 1990-07-20 1992-01-14 Ericsson Ge Mobile Communications Holding Inc. Resynchronization of encryption systems upon handoff
US5148485A (en) * 1990-07-20 1992-09-15 Ericsson Ge Mobile Communications Holding, Inc. Encrypton system for digital cellular communications

Also Published As

Publication number Publication date
EP0641505A1 (en) 1995-03-08
DE69329111D1 (de) 2000-08-31
WO1993025021A1 (en) 1993-12-09
CN1030879C (zh) 1996-01-31
PT641505E (pt) 2000-11-30
CA2135913A1 (en) 1993-12-09
TW223207B (es) 1994-05-01
US5243653A (en) 1993-09-07
CA2135913C (en) 1998-12-29
DK0641505T3 (da) 2000-11-27
MY109185A (en) 1996-12-31
MX9302947A (es) 1994-05-31
EP0641505A4 (en) 1997-08-20
EP0641505B1 (en) 2000-07-26
GR3034578T3 (en) 2001-01-31
ATE195043T1 (de) 2000-08-15
CN1082274A (zh) 1994-02-16
DE69329111T2 (de) 2001-03-22

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