1. A method of paging performed by a coverage-extension-capable (CE-capable) user equipment in a cell controlled by a radio base station in a mobile communication system, wherein the radio base station supports a plurality of coverage extension techniques to support the CE-capable user equipment, the method comprising the steps of: performing radio measurements by the CE-capable user equipment; determining by the CE-capable user equipment whether coverage extension is necessary, based on results of the radio measurements; informing, by the CE-capable user equipment, the radio base station whether the CE-capable user equipment needs coverage extension; and receiving, by the CE-capable user equipment, paging, from the radio base station, wherein the paging selectively applies one of the plurality of coverage extension techniques depending on whether coverage extension is necessary for the CE-capable user equipment.