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.

What is claimed is: 
     
         1 . A method for processing a broadcast service at a Primary Device (PD), the method comprising:
 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, wherein the notification message includes a category for the emergency data.   
     
     
         2 . The method of  claim 1 , wherein the response and the notification message are delivered with a JavaScript Object Notation (JSON) format. 
     
     
         3 . The method of  claim 1 , further comprising:
 parsing a Service List Table (SLT) in the broadcast signal, the SLT providing information for discovering Service Layer Signaling (SLS); and   acquiring an electronic service guide (ESG) based on the SLT via:   a broadcast network through a Real Time Delivery Over Unidirectional Transport (ROUTE) session, or   a broadband by requesting an ESG fragment from an ESG server, the SLT including a signaling Uniform Resource Locator (URL) for the ESG server.   
     
     
         4 . A device for processing a broadcast service, the device comprising:
 a Companion Device (CD) manager that:   performs a discovery process with a CD application in a CD by receiving a discovery request from the CD and providing an endpoint for a WebSocket server of the device; the Websocket server that handles a connection established by the CD application based on the endpoint;   a tuner that receives a broadcast signal having signaling information including flag information to obtain emergency data in the broadcast signal;   a time de-interleaver that performs time de-interleaving on 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 ,   wherein the Websocket server transmits a notification message including the emergency data to the CD, and   wherein the Websocket server further transmits a response including information representing a current service to the CD application based on the connection in response to receiving a query for the current service from the CD, wherein the notification message includes a category for the emergency data.   
     
     
         5 . The device of  claim 4 , wherein the response and the notification message are delivered with a JavaScript Object Notation (JSON) format. 
     
     
         6 . The device of  claim 4 , further comprising:
 a Service List Table parser configured to parse a Service List Table (SLT) in the broadcast signal to obtain an electronic service guide (ESG) based on the SLT via:
 a broadcast network through a Real Time Delivery Over Unidirectional Transport (ROUTE) session, or 
 a broadband by requesting an ESG fragment from an ESG server, the SLT including a signaling Uniform Resource Locator (URL) for the ESG server, 
   wherein the SLT providing information for discovering Service Layer Signaling (SLS).