Method for detecting a network or device and a neighbor thereof

A method of operating a TVBD (TeleVision Band Device) network or device, the method comprising:nreceiving, by the TVBD network or device, an operating channel for the TVBD network or device, the TVBD network or device operating in accordance with a first service type in which the operating channel for the TVBD network or device is determined by a coexistence manager (CM);transmitting, by the TVBD network or device to the CM, a service type change request indicating a service type change from the first service type to a second service type in which the operating channel for the TVBD network or device is determined by the TVBD network or device;receiving, by the TVBD network or device from the CM, a service type change response in response to the service type change request; anddetermining, by the TVBD network or device, the operating channel for the TVBD network or device based on neighbor information and available channels obtained from the CM, if the service type change response indicates a changed service type,wherein the service type change request is a message for requesting a switchover from the first service type which is a management service in which the CM determines the operating channel of the TVBD network or device, to the second service type which is a discovery/information service in which the TVBD network or device determines the operating channel of the TVBD network or device.

A TVBD (TeleVision Band Device) network or device comprising:na transceiver; anda controller configured tonreceive an operating channel for the TVBD network or device, the TVBD network or device operating in accordance with a first service type in which the operating channel for the TVBD network or device is determined by a coexistence manager (CM),transmit, to the CM, a service type change request indicating a service type change from the first service type to a second service type in which the operating channel for the TVBD network or device is determined by the TVBD network or device,receive, from the CM, a service type change response in response to the service type change request, anddetermine the operating channel for the TVBD network or device based on neighbor information and available channels obtained from the CM, if the service type change response indicates a changed service type,nwherein the service type change request is a message for requesting a switchover from the first service type which is a management service in which the CM determines the operating channel of the TVBD network or device, to the second service type which is a discovery/information service in which the TVBD network or device determines the operating channel of the TVBD network or device.