Patent ID: 7613424
Filing Date: 2009-11-03
Classification: H04W

Abstract:
1. A supervisor handover method for electing a new supervisor on a first High Rate (HR) subnet of a Frequency Hopping (FH) piconet, including one supervisor and a plurality of members comprising the steps of: selecting a candidate supervisor eligible to be the new supervisor among members of the first HR subnet prior to a supervisor handover; broadcasting an inquiry message to all the members on the first HR subnet by the candidate supervisor when the supervisor handover is initiated; and electing the candidate supervisor as the new supervisor if all the members on the first HR subnet respond to the inquiry message, wherein the step of electing the new supervisor comprises the steps of: transmitting a seek message to responding members in order to ask to seek for a missing HR member which does not respond to the inquiry message and to configure a second HR subnet if the missing member is on the first HR subject; receiving, at the members, the seek message seeking the missing member, and configuring, as a supervisor, the second HR subnet including the missing member; and transmitting a response message established in response to the seek message, from the supervisor of the second HR subnet to the candidate supervisor.