Method for transmitting and receiving signal using multiple frequency bands in a wireless mobile communication system and system thereof

The present invention relates to a wireless communication system, related to a wireless communication system, according to a method of transmitting and receiving a signal of a base station, during an initial network entry with the mobile station procedure, basic capability negotiation request (Subscriber station Basic Capability REQuest: SBC-REQ) message or registration request (rEGistration rEQuest: REG-REQ) the mobile station by at least one of the other messages pertaining to the message or the initial network entry process with a plurality of operating frequency: the step of determining whether to be using (frequency Assignment FA) and, at the mobile station If you must use a plurality of FA, comprising the step of transmitting and receiving the mobile station and the signal process to transmit a process for selecting the plurality of FA and information on the selected FA to the mobile station, via the selected FA and, wherein the FA information may comprise an index (index) of the selected image and the FA Characterized in that the start frame information to be transmitted and received signal is started through the selected FA. Frequency band, FA, basic capability negotiation request, the basic capability negotiation response