Digital broadcasting receiver and a data processing method

摘要

A digital broadcasting system and a data processing method are disclosed. A data processing method of a digital broadcasting receiver comprises receiving a mobile/handheld (MH) broadcasting signal including mobile service data and main service data; generating RS(Reed-Solomon) frames from the received MH broadcasting signal; extracting ESG (electronic service guide) data from the generated RS frame; extracting SDP (session description protocol) data from the extracted ESG data; checking a port number corresponding to subtitle having reference information, among the extracted SDP data; and controlling the subtitle having reference information using the checked port number so that the subtitle having reference information is displayed.