Method of frequency channel assignment using effective spectrum sensing in multiple frequency assignment system

摘要

A method of assigning a frequency channel using efficient spectrum sensing in a multiple Frequency Assignment system includes a channel sensing process, wherein a base station of a secondary user classifies multiple frequency channels licensed to a primary user into a plurality of channel state sets according to usage states, periodically senses channel states by changing a sensing period according to the types of classified channel state sets, and manages the sensed channel states as frequency channel state set information; a channel state set broadcasting process; and a channel assigning process. Accordingly, a frequency channel can be assigned to a secondary user requesting channel assignment using frequency channel state set information without a primary user experiencing interference noise.

主权项

1. A method of transmitting channel information for frequency channel assignment in a Base Station (BS), the method comprising:
maintaining information on a plurality of channel sets including an active set currently used for wireless regional area network (WRAN) communication, a candidate set available for WRAN communication, and an occupied set occupied by incumbent; transmitting information on the candidate set to a new customer premise equipment (CPE), wherein the BS receives channel sensing information including channel state set information from the CPE for assigning a channel to one of the plurality of channel sets, wherein a duration of a sensing period is modified based on a type of a channel set among the plurality of channel sets.