Apparatus for transmitting broadcast signal, apparatus for receiving broadcast signal, method of transmitting broadcast signal, and method of receiving broadcast signal

Abstract

A method for receiving a broadcast signal includes receiving the broadcast signal including a signal frame; demodulating the received broadcast signal by an OFDM (Orthogonal Frequency Division Multiplex) scheme; frame parsing the signal frame carrying broadcast data, signaling table for a service, the broadcast data and the signaling table is transmitted through a broadcast network, the signaling table including a service identifier identifying the broadcast service, category information indicating a category of the broadcast service and bootstrapping information to obtain a service signaling information for the broadcast service, the service signaling information is transmitted via either the broadcast network or a broadband network that is different from the broadcast network; time de-interleaving the signal frame; parsing the signaling table to acquire the service signaling information, the service signaling information is acquired via: the broadband network based on a bootstrapping information that includes URL (Uniform Resource Locator) information of the service signaling information, or the broadcast network based on a bootstrapping information that includes an IP (Internet Protocol) address of an IP packet carrying the service signaling information; and parsing the service signaling information including transport session information for one or more transport packets carrying one or more SGDDs (Service Guide Delivery Descriptors).

What is claimed is: 
     
         1 . A method for receiving a broadcast signal, the method comprising:
 receiving the broadcast signal including a signal frame;   demodulating the received broadcast signal by an OFDM (Orthogonal Frequency Division Multiplex) scheme;   frame parsing the signal frame carrying broadcast data, signaling table for a service, the broadcast data and the signaling table is transmitted through a broadcast network,   the signaling table including a service identifier identifying the broadcast service, category information indicating a category of the broadcast service and bootstrapping information to obtain a service signaling information for the broadcast service,   the service signaling information is transmitted via either the broadcast network or a broadband network that is different from the broadcast network;   time de-interleaving the signal frame;   parsing the signaling table to acquire the service signaling information, the service signaling information is acquired via:   the broadband network based on a bootstrapping information that includes URL (Uniform Resource Locator) information of the service signaling information, or   the broadcast network based on a bootstrapping information that includes an IP (Internet Protocol) address of an IP packet carrying the service signaling information; and   parsing the service signaling information including transport session information for one or more transport packets carrying one or more SGDDs (Service Guide Delivery Descriptors).   
     
     
         2 . The method of  claim 1 , wherein the transport session information includes ROUTE session information of a ROUTE session to which the one or more transport packets belong. 
     
     
         3 . The method of  claim 1 , wherein the method further comprising:
 acquiring components carried in the one or more transport packets, and   wherein the components are data for ESG (Electronic Service Guide) service, that is represented by in response to the service identifier and the category information, carried in one or more SGDUs (Service Guide Delivery Units), the service signaling information describing transport session information of one or more transport sessions in which the SGDUs are carried.   
     
     
         4 . The method of  claim 1 , wherein the service signaling information includes an MPD (Media Presentation Description). 
     
     
         5 . The method of  claim 1 , wherein a payload of the transport packet carries one of a contiguous portion of an object for the broadcast service. 
     
     
         6 . An apparatus for receiving a broadcast signal, the apparatus comprising:
 a tuner configured to receive the broadcast signal including a signal frame;   a demodulator configured to demodulate the received broadcast signal by an OFDM (Orthogonal Frequency Division Multiplex) scheme;   a frame parser configured to parse the signal frame carrying broadcast data, signaling table for a service, the broadcast data and the signaling table is transmitted through a broadcast network,   the signaling table including a service identifier identifying the broadcast service, category information indicating a category of the broadcast service and bootstrapping information to obtain a service signaling information for the broadcast service,   the service signaling information is transmitted via either the broadcast network or a broadband network that is different from the broadcast network;   a time de-interleaver configured to time de-interleave the signal frame;   a signaling table parser configured to parse the signaling table to acquire the service signaling information, the service signaling information is acquired via:   the broadband network based on a bootstrapping information that includes URL (Uniform Resource Locator) information of the service signaling information, or   the broadcast network based on a bootstrapping information that includes an IP (Internet Protocol) address of an IP packet carrying the service signaling information; and   a service signaling parser configured to parse the service signaling information including transport session information for one or more transport packets carrying one or more SGDDs (Service Guide Delivery Descriptors).   
     
     
         7 . The apparatus of  claim 6 , wherein the transport session information includes ROUTE session information of a ROUTE session to which the one or more transport packets belong. 
     
     
         8 . The apparatus of  claim 6 , wherein the service signaling parser parses the service signaling information to acquire components carried in the one or more transport packets, and
 wherein the components are data for ESG (Electronic Service Guide) service, that is represented by in response to the service identifier and the category information, carried in one or more SGDUs (Service Guide Delivery Units), the service signaling information describing transport session information of one or more transport sessions in which the SGDUs are carried.   
     
     
         9 . The apparatus of  claim 6 , wherein the service signaling information includes an MPD (Media Presentation Description). 
     
     
         10 . The apparatus of  claim 6 , wherein a payload of the transport packet carries one of a contiguous portion of an object for the broadcast service. 
     
     
         11 . A method for transmitting a broadcast signal, the method comprising:
 encoding broadcast data and signaling table for a broadcast service through a broadcast network,   wherein the signaling table including a service identifier identifying the broadcast service, category information indicating a category of the broadcast service and bootstrapping information to obtain a service signaling information for the broadcast service,   the service signaling information is transmitted via either the broadcast network or a broadband network that is different from the broadcast network,   the bootstrapping information includes either:   URL (Uniform Resource Locator) information of the service signaling information that is transmitted via the broadband network, or   an IP (Internet Protocol) address of an IP packet carrying the service signaling information that is transmitted via the broadcast network;   the service signaling information including transport session information for one or more transport packets carrying one or more SGDDs (Service Guide Delivery Descriptors);   time interleaving the encoded data;   generating a signal frame including the time interleaved data;   modulating the signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and   transmitting the broadcast signal including the modulated signal frame.   
     
     
         12 . The method of  claim 11 , wherein the transport session information includes ROUTE session information of a ROUTE session to which the one or more transport packets belong. 
     
     
         13 . The method of  claim 11 , wherein the one or more transport packets includes components, and
 wherein the components are data for ESG (Electronic Service Guide) service, that is represented by in response to the service identifier and the category information, carried in one or more SGDUs (Service Guide Delivery Units), the service signaling information describing transport session information of one or more transport sessions in which the SGDUs are carried.   
     
     
         14 . The method of  claim 11 , wherein the service signaling information includes an MPD (Media Presentation Description). 
     
     
         15 . The method of  claim 11 , wherein a payload of the transport packet carries one of a contiguous portion of an object for the broadcast service. 
     
     
         16 . An apparatus for transmitting a broadcast signal, the apparatus comprising:
 an encoder configured to encode broadcast data and signaling table for a broadcast service through a broadcast network,   wherein the signaling table including a service identifier identifying the broadcast service, category information indicating a category of the broadcast service and bootstrapping information to obtain a service signaling information for the broadcast service,   the service signaling information is transmitted via either the broadcast network or a broadband network that is different from the broadcast network,   the bootstrapping information includes either:   URL (Uniform Resource Locator) information of the service signaling information that is transmitted via the broadband network, or   an IP (Internet Protocol) address of an IP packet carrying the service signaling information that is transmitted via the broadcast network;   the service signaling information including transport session information for one or more transport packets carrying one or more SGDDs (Service Guide Delivery Descriptors);   time interleaver configured to time interleave the encoded data;   frame builder configured to generate a signal frame including the time interleaved data;   a modulator configured to modulate the signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and   a transmitter configured to transmit the broadcast signal including the modulated signal frame.   
     
     
         17 . The apparatus of  claim 16 , wherein the transport session information includes ROUTE session information of a ROUTE session to which the one or more transport packets belong. 
     
     
         18 . The apparatus of  claim 16 , wherein the one or more transport packets includes components, and
 wherein the components are data for ESG (Electronic Service Guide) service, that is represented by in response to the service identifier and the category information, carried in one or more SGDUs (Service Guide Delivery Units), the service signaling information describing transport session information of one or more transport sessions in which the SGDUs are carried.   
     
     
         19 . The apparatus of  claim 16 , wherein the service signaling information includes an MPD (Media Presentation Description). 
     
     
         20 . The apparatus of  claim 16 , wherein a payload of the transport packet carries one of a contiguous portion of an object for the broadcast service.