Patent ID: 8565265

Claim:
A method for transmitting in-band signaling information by a transmitter in a wireless broadcasting system that transmits broadcast service data through a plurality of data Physical Layer Pipes (PLPs) constituting a frame, the method comprising the steps of: determining whether in-band signaling information of data PLP includes a frame index field indicating a frame index for each data PLP; if the in-band signaling information includes the frame index field and no data PLP is transmitted in at least one frame within a predetermined period from a current frame, including non-PLP signaling information in the in-band signaling information and transmitting the in-band signaling information through the current frame; and if the in-band signaling information does not include the frame index field and no data PLP is transmitted in a next frame after the current frame, indicating that no data PLP is transmitted in the next frame by emptying the in-band signaling information, wherein the non-PLP signaling information indicates that no data PLP is transmitted within the predetermined period.