The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2020
Filed:
Oct. 23, 2017
Beijing University of Posts and Telecommunications, Beijing, CN;
BEIJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, Beijing, CN;
Abstract
The embodiment of the present application provides a method and apparatus for spectrum prediction in a cognitive radio network. The method comprises: receiving a target access request from a secondary user; obtaining real-time occupancy information of bands through a subspace filtering-based spectrum sensing approach; updating a spectrum resource database of radio environment maps (REM) according to the real-time occupancy information of hands; establishing a prediction model for bands occupied by primary users according to the updated spectrum resource database of radio environment maps (REM); and allowing an access of the secondary user to a target band according to the prediction model for bands occupied by primary users. The method and apparatus provided by embodiments of the present application allow a secondary user to have a targeted spectrum access. The spectrum utilization efficiency of the radio network can thus be improved.