Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2008-07-11
2011-10-04
Hoang, Thai (Department: 2463)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C455S436000, C455S101000
Reexamination Certificate
active
08031679
ABSTRACT:
Disclosed is a method of performing softer handover in a broadband wireless communication system. The method includes granting identification numbers to neighbor antennas around a mobile station currently performing communication, and transmitting a neighbor base station advertisement message including the identification numbers of the neighbor antennas, receiving a handover request message including an identification number of a particular antenna from the mobile station, determining if the particular antenna is located within a current coverage area of the base station, and adding the particular antenna to a diversity set and notifying information on multiple antennas included in the diversity set to the base station when the particular antenna is located within the current coverage area of the mobile station; multicasting an identical frame to the multiple antennas included in the diversity set and receiving a handover indication message from the mobile station.
REFERENCES:
patent: 2006/0025158 (2006-02-01), Leblanc et al.
patent: 2008/0076432 (2008-03-01), Senarath et al.
patent: 2009/0040982 (2009-02-01), Ho et al.
patent: 2009/0046573 (2009-02-01), Damnjanovic
patent: 2009/0086677 (2009-04-01), Ho
Hwang Seong-Taek
Shaik Basha
Cha & Reiter LLC
Hoang Thai
Samsung Electronics Co,. Ltd.
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