A METHOD AND APPARATUS FOR NEW KEY DERIVATION UPON HANDOFF IN WIRELESS NETWORKS

Abstract

A novel key management approach is provided for securing communication handoffs between an access terminal and two access points. As an access terminal moves from a current access point to a new access point, the access terminal sends a short handoff request to the new access point. The short handoff request may include the access terminal ID; it does not include the access point ID. The new access point may then send its identifier and the access terminal's identifier to the authenticator. Using a previously generated master transient key, the access point identifier and the access terminal identifier, an authenticator may generate a master session key. The master session key may then be sent to the access point by the authenticator. The access terminal independently generates the same new security key with which it can securely communicate with the new access point.

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Technology	Declaration Date	Declaration Reference	Declaring Company	Specification Number	Explicitly Disclosed	Patent Type
4G,3G,2G	15/07/2009	ISLD-200907-008	QUALCOMM INC	S1 TS Number: TS 133 401 Version No: Illustrative part: ---- Release: + -	No	Family Member
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5G	31/05/2022	ISLD-202206-002	QUALCOMM INC	S1 TS Number: TS 133 501 Version No: Illustrative part: ---- Release: S2 TS Number: TS 138 300 Version No: Illustrative part: ---- Release: +1 -1	No	Family Member

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US10412583B2	5G	02/04/2019	ISLD-201903-008	QUALCOMM INC	S1 TS Number: TS 133 501 Version No: ---- Section No: Release : ---- S2 TS Number: TS 138 300 Version No: ---- Section No: Release : ---- +1 -1	No	Family Member
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Publication No	Technology	Declaration Information			Specification Information				Explicitly Disclosed	Patent Type	Status	National Phase Entries
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Technologies

Mobility and handover

Session Management

Product

Base Station (eNB/gNB)

User Equipment (UE/Terminal)

Use Cases

Wireless communication

Services

Secure Communication

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Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.