公开(公告)号：CA2629880A1

公开(公告)日：2007-05-24

申请号：CA2629880

申请日：2006-11-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KANG CHUNG-GU ,  KIM IL-HWAN ,  KIM CHANG-JOO ,  SONG MYUNG-SUN ,  KANG BUB-JOO ,  KO GWANGZEEN ,  HWANG SUNG-HYUN

IPC: H04B7/26

公开(公告)号：CA2629880C

公开(公告)日：2015-09-29

申请号：CA2629880

申请日：2006-11-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KO GWANGZEEN ,  HWANG SUNG-HYUN ,  KANG BUB-JOO ,  KANG CHUNG-GU ,  KIM IL-HWAN ,  KIM CHANG-JOO ,  SONG MYUNG-SUN

IPC: H04B7/26

Abstract: Provided are a channel switching method for effectively performing channel switching in a cognitive radio system while protecting an incumbent user, a method of managing a frequency channel, and a base station and customer premises equipment (CPE) using the methods. In the channel switching method performed by the base station, a currently unavailable first frequency channel is detected from among at least one uplink/downlink frequency channel which is set as a communication channel with the CPE; a channel switching request message requesting switching from the first frequency channel to a second frequency channel is transmitted to the CPE; and the first frequency channel is switched to the second frequency channel when a channel switching report message reporting that channel switching is to be performed in response to the channel switching request message is received from the CPE.

公开(公告)号：EP1952559A4

公开(公告)日：2012-06-20

申请号：EP06812628

申请日：2006-11-16

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KO GWANGZEEN ,  HWANG SUNG-HYUN ,  KANG BUB-JOO ,  KANG CHUNG-GU ,  KIM IL-HWAN ,  KIM CHANG-JOO ,  SONG MYUNG-SUN

IPC: H04B7/26 ,  H04W28/04 ,  H04W36/00 ,  H04W36/06

CPC classification number: H04W36/06 ,  H04W16/14 ,  H04W72/0413