Broadcasting signal transmitting apparatus, broadcasting signal receiving apparatus, broadcasting signal transmitting method, and broadcasting signal receiving method

Abstract

A method for processing a broadcast service at a Primary Device (PD), the method including performing, by a companion manager of the PD, a discovery process with a Companion Device (CD) application in a CD by receiving a discovery request from the CD and providing an endpoint for a WebSocket server of the PD; handling, by the WebSocket server, a connection established by the CD application based on the endpoint; in response to receiving a query for a current service from the CD, transmitting, by the WebSocket server, a response including information representing the current service to the CD application based on the connection; receiving, by a tuner, a broadcast signal having signaling information including flag information to obtain emergency data in the broadcast signal; time de-interleaving, by a time de-interleaver, Forward Error Correction (FEC) blocks including the emergency data based on a Time Interleaving (TI) block, wherein the FEC blocks are de-interleaved based on positions for the FEC blocks and one or more virtual FEC blocks; and transmitting, by the Websocket server, a notification message including the emergency data to the CD, in which the notification message includes a category for the emergency data.

Dependencies are inferred from the claim text.