METHOD FOR PROVIDING MOBILE IPTV SERVICE AND SYSTEM FOR THE SAME

PURPOSE: A method for providing a mobile internet protocol television service and a system thereof are provided to minimize average processing complexity when a user changes a channel to other channels in the same channel group by using a mobile terminal. CONSTITUTION: A base station executes channel grouping corresponding to channel preference of a user(S501). The base station distinguishes a channel group with a channel requested in a mobile terminal. The base station broadcasts a multicast stream to the mobile terminal(S503). The multicast stream includes a channel stream of the requested channel and channel streams of other channels included in the channel group. When a current channel and a changed channel are included in the same channel group, the mobile terminal decodes the channel stream of the changed channel in a stream of the current channel(S505). [Reference numerals] (220) Base station; (300) Mobile terminal; (AA) No; (BB) Yes; (S501) Grouping a channel according to the channel preference of a user; (S502) Power on for watching a TV; (S503) Transmitting channel stream corresponding to a currently watching channel and channels included in a channel group which is the same as the channel; (S504) Same group?; (S505) Displaying by performing decoding for channel stream corresponding to a channel to be changed; (S506) Transmitting a channel request message; (S507) Transmitting channel stream corresponding to the requested channel and channels included in a channel group which is the same as the channel; (S508) Displaying by performing decoding for the channel stream corresponding to the channel to be changed;