Abstract: A user equipment for transmitting and receiving a signal in a wireless communication system, includes: a transceiver; and at least one processor configured to perform a random access procedure with a base station and record log information that is information related to the random access procedure, wherein the random access procedure includes transmitting a random access preamble to the base station and receiving, from the base station, a random access response that is a response to the transmission of the random access preamble.

Abstract: The present invention provides a method for acquiring information on-line on customer preferences. The method includes joining or registering with an Internet-based advertising agency as a member thereof, collecting a profile of said member, collecting a preference of the member on the basis of the collected profile of said member, collecting the advertising effect on each member on the basis of said collected preference, analyzing said collected profile, collected preference and collected advertising effect and preparing a report on the basis of the result of said analysis and presenting it an advertising client member.