Method for processing three dimensional (3D) video signal and digital broadcast receiver for performing the method

A digital broadcast receiver for processing a three dimensional (3D) video signal, the digital broadcast receiver comprising:

• a tuner configured to receive a digital broadcast signal including a multiple hierarchy descriptor, wherein the multiple hierarchy descriptor includes a first field identifying an Elementary Stream (ES), a second field indicating a number of dependent Elementary Streams (ESs) which are to be accessed before decoding of the ES identified by the first field, a third field indicating whether each of the dependent ESs is received over the same channel as a physical transmission channel of the multiple hierarchy descriptor, a fourth field specifying index of each of the dependent ESs to be accessed before decoding of the ES identified by the first field, and signaling information for the each of the dependent ESs identified by the fourth field when the third field indicates each of the dependent ESs is received over a channel different from a transmission channel of the multiple hierarchy descriptor,
• wherein the multiple hierarchy descriptor further includes a hierarchy type specifying whether the ES corresponds to a stream of a base layer or a stream of a multi-view profile, and
• wherein the signaling information includes a transmission channel field specifying the channel transmitting each of the dependent ESs when the dependent ESs are transmitted over the channel different from the physical transmission channel of the multiple hierarchy descriptor as indicated by the third field, a transmission mode field indicating whether each of the dependent ESs can be received simultaneously with the ES or not, and start time information specifying a reception start time for receiving the dependent ESs, when transmission mode field indicates that the dependent ESs are received non-simultaneously with the ES;
• a Program Specific Information (PSI) / Program and System Information Protocol (PSIP) processor configured to identify the number of the dependent ESs based on the second field;
• a decoder configured to decode the ES and the dependent ESs based on information included in the multiple hierarchy descriptor;
• and
• an output formatter configured to output a three dimensional (3D) video signal by using the decoded ES and dependent ESs,
• wherein the PSI/PSIP processor detects the signaling information if a value of the third field means a specific case in which the dependent ESs are received over a channel different from the transmission channel of the multiple hierarchy descriptor.