Apparatus for transmitting signaling information, apparatus for receiving signaling information, method for transmitting signaling information and method for receiving signaling information

Abstract

A method for transmitting a broadcast signal in a digital broadcast transmitter includes generating at least one link layer packet including a header and a payload; and transmitting the broadcast signal carrying the link layer packet. Further, the header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the layer packet, further the input data relates to an IP packet or a signaling packet.

What is claimed is: 
     
         1 . A method for transmitting a broadcast signal in a digital broadcast transmitter, the method comprising:
 generating at least one link layer packet including at least one header and at least one payload,   wherein the at least one header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the at least one link layer packet, further the input data relates to an Internet Protocol (IP) packet or a signaling packet,   wherein when the packet type information represents that the input data relates to the IP packet, the fixed header further includes concatenation segmentation information,   wherein the at least one header includes a different additional header having a different size based on the concatenation segmentation information included in the fixed header,   wherein a first header among the at least one header includes a first additional header when the concatenation segmentation information represents that a first payload carries a segment of at least one input packet,   wherein the first additional header includes segment sequence number information for representing an order of the segment carried by the at least one link layer packet,   wherein when the concatenation segmentation information represents that a second payload carries multiple input packets, a second header among the at least one header includes count information for representing the number of the multiple input packets included in the at least one link layer packet, further a value of the count information is set to the number of the multiple input packets included in the at least one link layer packet minus two, and the minimum possible number of the multiple input packets is 2 and the maximum possible number of the multiple input packets is 9 in the at least one link layer packet, and   wherein a size of the first additional header is determined based on the concatenation segmentation information included in the fixed header; and   transmitting the broadcast signal carrying the at least one link layer packet.   
     
     
         2 . The method of  claim 1 , wherein the first additional header further includes last segment information. 
     
     
         3 . The method of  claim 1 , wherein the at least one input packet includes a section table, a descriptor or generic stream encapsulation-logical link control (GSE-LLC) data. 
     
     
         4 . The method of  claim 1 , wherein the at least one payload of the at least one link layer packet includes a fast information table or fast information descriptor including signaling information configured to quickly scan/obtain a broadcast service. 
     
     
         5 . A digital broadcast transmitter for transmitting a broadcast signal, the digital broadcast transmitter comprising:
 a processor configured to generate at least one link layer packet including at least one header and at least one payload,   wherein the at least one header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the at least one link layer packet, further the input data relates to an Internet Protocol (IP) packet or a signaling packet,   wherein when the packet type information represents that the input data relates to the IP packet, the fixed header further includes concatenation segmentation information,   wherein the at least one header includes a different additional header having a different size based on the concatenation segmentation information included in the fixed header,   wherein a first header among the at least one header includes a first additional header when the concatenation segmentation information represents that a first payload carries a segment of at least one input packet,   wherein the first additional header includes segment sequence number information for representing an order of the segment carried by the at least one link layer packet,   wherein when the concatenation segmentation information represents that the payload carries multiple input packets, a second header among the at least one header includes count information for representing the number of the multiple input packets included in the at least one link layer packet, further a value of the count information is set to the number of the multiple input packets included in the at least one link layer packet minus two, and the minimum possible number of the multiple input packets is 2 and the maximum possible number of the multiple input packets is 9 in the at least one link layer packet, and   wherein a size of the first additional header is determined based on the concatenation segmentation information included in the fixed header; and   a transmitting module configured to transmit the broadcast signal carrying the at least one link layer packet.   
     
     
         6 . The digital broadcast transmitter of  claim 5 , wherein the first additional header further includes last segment information. 
     
     
         7 . The digital broadcast transmitter of  claim 5 , wherein the at least one input packet includes a section table, a descriptor or generic stream encapsulation-logical link control (GSE-LLC) data. 
     
     
         8 . The digital broadcast transmitter of  claim 5 , wherein the at least one payload of the at least one link layer packet includes a fast information table or fast information descriptor including signaling information configured to quickly scan/obtain a broadcast service. 
     
     
         9 . A method for receiving a broadcast signal in a digital broadcast receiver, the method comprising:
 receiving a broadcast signal carrying at least one link layer packet; and   process the at least one link layer packet,   wherein the link layer packet includes at least one header and at least one payload,   wherein the at least one header includes a fixed header having a fixed length and the fixed header includes packet type information of input data before encapsulation into the link layer packet, further the input data relates to an Internet Protocol (IP) packet or a signaling packet,   wherein when the packet type information represents that the input data relates to an IP packet, the fixed header further includes concatenation segmentation information,   wherein the at least one header includes a different additional header having a different size based on the concatenation segmentation information included in the fixed header,   wherein a first header among the at least one header includes a first additional header when the concatenation segmentation information represents that a first payload carries a segment of at least one input packet,   wherein the first additional header includes segment sequence number information for representing an order of the segment carried by the at least one link layer packet,   wherein when the concatenation segmentation information represents that a second payload carries multiple input packets, a second header among the at least one header includes count information for representing that the number of the multiple input packets included in the at least one link layer packet, further a value of the count information is set to the number of the multiple input packets included in the at least one link layer packet minus two, and the minimum possible number of the multiple input packets is 2 and the maximum possible number of the multiple input packets is 9 in the at least one link layer packet, and   wherein a size of the first additional header is determined based on the concatenation segmentation information included in the fixed header.   
     
     
         10 . The method of  claim 9 , wherein the first additional header further includes last segment information. 
     
     
         11 . The method of  claim 9 , wherein the at least one input packet includes a section table, a descriptor or generic stream encapsulation-logical link control (GSE-LLC) data. 
     
     
         12 . The method of  claim 9 , wherein the at least one payload of the at least one link layer packet includes a fast information table or fast information descriptor including signaling information configured to quickly scan/obtain a broadcast service. 
     
     
         13 . A digital broadcast receiver for processing at least one link layer packet, the digital receiver comprising:
 a receiving module configured to receive a broadcast signal carrying the at least one link layer packet;   a processor configured to process the at least one link layer packet from the broadcast signal,   wherein the at least one link layer packet includes packet type information of input data before encapsulation into the at least one link layer packet, further the input data relates to an Internet Protocol (IP) packet or a signaling packet,   wherein when the packet type information represents that the input data relates to the signaling packet, a first link layer packet includes signaling type information for indicating at least one table, further the at least one table includes a Physical Layer Pipe (PLP) Identification (ID),   wherein when the packet type information represents that the input data relates to the IP packet, a fixed header having a fixed length included in a second link layer packet includes concatenation segmentation information,   wherein the second link layer packet further includes a different additional header having a different size based on the concatenation segmentation information included in the fixed header,   wherein the second link layer packet includes a first additional header when the concatenation segmentation information represents that a payload carries a segment of the IP packet,   wherein the first additional header includes segment sequence number information for representing an order of the segment carried by the second link layer packet,   wherein when the concatenation segmentation information represents that the payload carries multiple IP packets, the second link layer packet includes count information for representing that the number of the multiple IP packets included in the second link layer packet, further a value of the count information is set to the number of the multiple IP packets included in the second link layer packet minus two, and the minimum possible number of the multiple IP packets is 2 and the maximum possible number of the multiple IP packets is 9 in the second link layer packet, and   wherein a size of the first additional header is determined based on the concatenation segmentation information included in the fixed header; and   wherein the processor is further configured to output the signaling packet from the first link layer packet and output the IP packet or the multiple IP packets from the second link layer packet.   
     
     
         14 . The digital broadcast receiver of  claim 13 , wherein the first additional header further includes last segment information. 
     
     
         15 . The digital broadcast receiver of  claim 13 , wherein the at least one input packet includes a section table, a descriptor or generic stream encapsulation-logical link control (GSE-LLC) data. 
     
     
         16 . The digital broadcast receiver of  claim 13 , wherein the at least one payload of the at least one link layer packet includes a fast information table or fast information descriptor including signaling information configured to quickly scan/obtain a broadcast service.