US Patent Application No: 2001/0006,552

Number of patents in Portfolio can not be more than 2000

Method for transmitting an encryoption number in a communication system and a communication system

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention relates to a method for transmitting an encryption number in a communication system (1) comprising mobile terminals (MT1-MT4) and at least a first access point (AP1) and a second access point (AP2). The method comprises the steps of defining a set of encryption keys, selecting at each said access point (AP1, AP2) from said set of encryption keys one to be used at a time for encrypting information to be transmitted between said access point (AP1, AP2) and mobile terminal (MT1-MT4), transmitting from the access point (AP1, AP2), at intervals, data about the encryption key selected at the time, setting up a data transmission connection between a mobile terminal (MT1-MT4) and the first access point (AP1) for the transmission of information, and performing a handover, whereby a data transmission connection is set up between the second access point (AP2) and the mobile terminal (MT1-MT4). In the method, a handover is performed, wherein a data transmission connection is set up between the second access point (AP2) and the mobile terminal (MT1-MT4). In the method, in connection with the handover, information is also transmitted to the mobile terminal (MT1-MT4) about the encryption key selected at the second access point (AP2).

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NOKIA CORPORATIONESPOO872

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Salokannel, Juha Kangasala, FI 65 834

Cited Art Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (5)
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* 2008/0013,730 METHOD AND APPARATUS FOR RE-SYNCHRONIZATION OF A STREAM CIPHER DURING HANDOFF 0 2006
 
SWIVEL SECURE LIMITED (1)
* 7,043,635 Embedded synchronous random disposable code identification method and system 8 2000
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 7,065,353 Method for controlling the handover of telecommunication connections between mobile parts and base stations in cellular telecommunications systems having wireless telecommunication 40 1999
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (3)
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* 5,293,423 Synchronizing method in a mobile radio system 21 1992
* 6,370,380 Method for secure handover 66 1999
 
RESEARCH IN MOTION LIMITED (1)
* 6,510,515 Broadcast service access control 70 1998
 
MOTOROLA MOBILITY, INC. (1)
* 5,243,653 Method and apparatus for maintaining continuous synchronous encryption and decryption in a wireless communication system throughout a hand-off 43 1992
 
ERICSSON INC. (4)
* 5,060,266 Continuous cipher synchronization for cellular communication system 58 1990
* 5,546,464 Method of and apparatus for selective resynchronization in a digital cellular communications system 49 1994
* 5,598,459 Authentication and handover methods and systems for radio personal communications 32 1995
* 6,671,377 System and method for downloading network information to mobile stations for location calculation 53 1999
 
MOTOROLA, INC. (1)
* 5,179,559 Handoff method for a cellular system 40 1990
 
RPX CLEARINGHOUSE LLC (1)
* 7,089,009 Method and apparatus for setting up a communication with a target base station in a cellular or cordless mobile telecommunications system 26 1999
 
NEC CORPORATION (1)
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APPLE INC. (1)
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GIGASET COMMUNICATIONS GMBH (1)
* 7,480,273 Method, mobile station and base station for data transmission in a mobile radio system 1 1999
 
Wellington Leisure Products, Inc. (1)
* 5,293,643 Method for handoff in a mobile radio communication system 24 1991
 
GE MOBILE COMMUNCATIONS HOLDING INC., (1)
* 5,081,679 Resynchronization of encryption systems upon handoff 50 1990
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (1)
* 2010/0226,317 METHOD AND APPARATUS FOR TIMESLOT SWAPPING 0 2007
 
MESHNETWORKS, INC. (3)
7,522,537 System and method for providing connectivity between an intelligent access point and nodes in a wireless network 21 2004
* 2004/0143,842 System and method for achieving continuous connectivity to an access point or gateway in a wireless network following an on-demand routing protocol, and to perform smooth handoff of mobile terminals between fixed terminals in the network 56 2004
* 7,382,740 System and method to perform smooth handoff of mobile terminals between fixed terminals in a network 5 2006
 
SONY CORPORATION (1)
* 7,756,476 Wireless communication system, terminal, and method for reporting status of terminal 2 2006
 
SIEMENS AKTIENGESELLSCHAFT (1)
* 7,620,183 Method for establishing a connection between a terminal and an operating mobile radio network, mobile radio network and terminal used in such a method 0 2001
 
NTT DOCOMO, INC. (2)
* 7,792,527 Wireless network handoff key 2 2002
* 2004/0203,783 Wireless network handoff key 40 2002
 
CERTICOM CORP. (2)
* 8,855,308 Method and apparatus for encoding security status information 0 2009
* 2009/0316,902 METHOD AND APPARATUS FOR ENCODING SECURITY STATUS INFORMATION 0 2009
 
InterDigital Technology Corporation (5)
* 7,903,620 Method and system for delivery of assistance data 3 2004
* 2005/0053,043 Method and system for delivery of assistance data 24 2004
8,005,055 Method and apparatus for determining and managing congestion in a wireless communications system 10 2004
9,007,991 Method and system for delivery of assistance data 0 2011
8,953,573 Method and apparatus for determining and managing congestion in a wireless communications system 0 2011
* Cited By Examiner