CPC H04W 16/14 (2013.01) [H04W 16/04 (2013.01); H04W 24/02 (2013.01); H04W 88/08 (2013.01)] | 18 Claims |
1. An access point (AP) device for controlling spectrum usage of a hierarchical communication system, in which a spectrum reserved for an Incumbent is usable by at least one user equipment (UE) for transmission when the spectrum is free of a transmission reservation by the Incumbent, the AP device comprising a processor configured to:
receive a message from the Incumbent requesting vacating of a spectrum;
generate a group of users affected by the message from the Incumbent requesting vacating of the spectrum; and
perform a spectrum management operation on the group of users;
wherein generating the group comprises assigning a group ID to a plurality of users affected by the message from the incumbent requesting vacating of the spectrum.
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