Method and apparatus for transmitting/receiving broadcasting signal including robust header compression packet stream and fast information

A method for receiving a broadcast signal, the method comprising:

• receiving a signal frame including a robust header compression (RoHC) packet and signaling information including context information generated by compressing a header of each packet, the signaling information is carried separately from the RoHC packet,
• wherein the RoHC packet is generated by compressing the header of each packet,
• a packet carrying a broadcast service and service signaling information for the broadcast service, and a packet carrying fast information for supporting rapid service scans and service acquisition,
• the fast information including identification information for identifying the broadcast service, service category information representing a category of the broadcast service and hidden information representing whether or not the broadcast service is related to a test service, and
• the signaling information including context identification information for representing a context identification (ID) for the RoHC packet,
• context profile information for a range which is used for compressing a packet stream including the packets,
• maximum context identification information indicating a maximum value of the context ID, and
• configuration information for a configuration for the context information;
• decompressing the RoHC packet to restore the IP packet stream based on the signaling information;
• parsing the fast information in the packet;
• parsing the service signaling information in the packet;
• and
• decoding the broadcast service in the packet.

An apparatus for transmitting a broadcast signal, the apparatus comprising:

• a packet generator configured to generate a packet carrying a broadcast service and service signaling information, and a packet carrying fast information for supporting rapid service scans and service acquisition,
• the fast information including identification information for identifying the broadcast service, service category information representing a category of the broadcast service and hidden information representing whether or not the broadcast service is related to a test service;
• a robust header compression (RoHC) compressor configured to generate a RoHC packet by compressing a header of each packet, and signaling information including context information generated from the compressing the header of each packet;
• a transmitter configured to transmit a signal frame including the RoHC packet and the signaling information, the signaling information is transmitted separately from the RoHC packet,
• the signaling information including context identification information for representing a context identification (ID) for the RoHC packet,
• context profile information for a range which is used for compressing a packet stream including the packets, and
• maximum context identification information indicating a maximum value of the context ID, and
• configuration information for a configuration for the context information.

An apparatus for receiving a broadcast signal, the apparatus comprising:

• a receiver configured to receive a signal frame including a robust header compression (RoHC) packet and signaling information including context information generated by compressing a header of each packet the signaling information is carried separately from the RoHC packet,
• wherein the RoHC packet is generated by compressing the header of each packet,
• a packet carrying a broadcast service and service signaling information for the broadcast service, and a packet carrying fast information for supporting rapid service scans and service acquisition,
• the fast information including identification information for identifying the broadcast service, service category information representing a category of the broadcast service and hidden information representing whether or not the broadcast service is related to a test service, and
• the signaling information including context identification information for indicating a context identification (ID) for the RoHC packet,
• context profile information for a range which is used for compressing a packet stream including the packets,
• maximum context identification information indicating a maximum value of the context ID, and
• configuration information for a configuration for the context information;
• a RoHC decompressor configured to decompress the RoHC packet stream to restore the IP packet stream based on the signaling information;
• a signaling parser configured to parse the fast information in the packet,
• wherein the signaling parser further parses the service signaling information in the packet;
• and
• a decoder configured to decode the broadcast service in the packet.