Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-09-05
2006-09-05
Eng, George (Department: 2683)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S432100, C455S411000, C370S331000, C709S245000
Reexamination Certificate
active
07103359
ABSTRACT:
Efficient access point roaming techniques involve a terminal device handing over a wireless communications session from a first access point to a second access point. The terminal device establishes a link with the second access point; authenticates the link with the second access point using an alternative access point address and a group key associated with the terminal device; and continues the communications session with the second access point using an address of the second access point. Various alternative access point addresses may be used, such as the address of the first access point, or a random address created by the terminal device during initiation of a prior access point connection. The terminal device may transmit a directive to the second access point to employ the alternative access point address.
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Heinonen Tomi
Nyberg Kaisa
Eng George
Miller Brandon J.
Morgan & Finnegan , LLP
Nokia Corporation
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