US Patent No. 9,380,464

METHOD AND DEVICE FOR DETERMINING AND ASSISTING IN DETERMINING BACK-UP FREQUENCY IN COGNITIVE RADIO SYSTEM


Patent No. 9,380,464
Issue Date June 28, 2016
Title Method And Device For Determining And Assisting In Determining Back-up Frequency In Cognitive Radio System
Inventorship Yuanyuan Li, Beijing (CN)
Chenggang Jiang, Beijing (CN)
Wenling Bai, Beijing (CN)
Yu Yang, Beijing (CN)
Assignee CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY, Beijing (CN)

Claim of US Patent No. 9,380,464

1. A method for determining a back-up frequency in a cognitive radio system comprising a first cognitive system, a second
cognitive system and an incumbent system, wherein the method comprises:
the first cognitive system obtaining, through a terminal, a back-up frequency, of the second cognitive system having overlap
coverage in a target area, in an overlap coverage area; and

the first cognitive system selecting at least one frequency from radio communication spectrum resources as a back-up frequency
in the target area according to the back-up frequency of the second cognitive system in the overlap coverage area.