Patent ID: 11968581
Assignee: SIGNIFY HOLDING B.V.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A method of an end point subsystem for performing a secure handover from an access point currently associated with the end point subsystem to another access point out of a plurality of access points in an optical multi-cell wireless communication network, the method comprising:
performing optical wireless communication;
securing an optical wireless communication link with the currently associated access point by using a pairwise transient key to encrypt or decrypt data communicated on the link;
acting, by a shared host processor comprised in the end point subsystem, as a first supplicant to carry out a first procedure for establishing an initial pairwise transient key with an authenticator for the end point subsystem, when the end point subsystem does not have an established secure connection; wherein the first procedure is carried out via another communication technology rather than optical wireless communication;
acting, by a controller, separate from the shared host processor, comprised in the end point subsystem, as a second supplicant to prepare for a secure handover to a candidate access point out of the plurality of access points, by carrying out a second procedure for establishing a new pairwise transient key for the end point subsystem and the candidate access point with the authenticator; wherein the second procedure is carried out via optical wireless communication; and
providing the initial pairwise transient key from the shared host processor to the controller for use as the pairwise transient key, when the end point subsystem does not have a secure optical connection.