METHOD AND APPARATUS FOR SEARCHING AND DOWNLOADING RELATED CONTENTS BY TERMINAL THROUGH BROADCAST SERVICE

1 . A method for receiving content related to a particular content, the method comprising:

transmitting a content request message including a content identifier of a particular content to a server;

receiving a content response message including a global state code and first information on at least one or more contents related to the content identifier from the server, wherein if there are at least one or more contents related to a global content identifier, the global state code has a value indicating success;

checking whether there exists second information in guide information referred to by the first information on the related contents;

receiving the second information if there is not the second information; and

initiating a service request procedure by using the guide information,

wherein if the value of the global state code indicates success, the receiving of second information and the initiating of the service request procedure are performed.

2 . The method of claim 1 , wherein the content request message is a related contents request message.

3 . The method of claim 1 , wherein the content response message is a related contents response message.

4 . The method of claim 1 , wherein

the global state code has the value indicating success, if the related contents are provided as an on-demand service.

5 . The method of claim 1 , wherein the guide information is service guide information, and the first information on the related contents is a provisioning service guide fragment with respect to the related contents.

6 . The method of claim 5 , wherein the service guide fragment is to provide an on-demand service of each of the related contents and an on-demand service of a bundled content of the related contents.

7 . The method of claim 5 , wherein the provisioning service guide fragment comprises one or more purchase item fragment, purchase channel fragment and purchase data fragment.

8 . The method of claim 7 , wherein the second information is a fragment not stored in the terminal among a service fragment or a content fragment referred to by the purchase item fragment.

9 . The method of claim 8 , wherein the service fragment or the content fragment referred to by the purchase item fragment is a service or content fragment matched to each of a service reference, a content reference and an identifier reference in the purchase item fragment.

10 . A terminal for receiving content related to particular content, the terminal comprising:

a transceiver configured to communicate with a server; and

a controller configured to control the transceiver,

wherein the transceiver transmits a content request message including a content identifier of particular content to the server, receives a content response message including first information on at least one or more contents related to the content identifier from the server

wherein the controller checks whether there exists second information in guide information referred to by the first information on the related contents,

wherein the transceiver further receives the second information if there is not the second information, and initiates a service request procedure by using the guide information

wherein if there are at least one or more contents related to a global content identifier, the global state code has a value indicating success,

wherein if the value of the global state code indicates success, the receiving of second information and the initiating of the service request procedure are performed.