Patent ID: 8514810

Claim:
A method for performing band handover in a broadband wireless access system, the method comprising: transmitting, by a terminal to a serving base station, a band handover request message which indicates channel status information of a neighboring base station, wherein the band handover request message includes: channel status information of best bands among all bands measured from the neighboring base station, information indicating the number of the best bands, and bitmap index information indicating the best bands, the terminal operating in a band AMC (Adaptive Modulation and Coding) mode in which data is transmitted and received through a band selected from among bands to which a modulation scheme and a coding rate are adaptively applied; and performing, by the terminal, handover to the neighboring base station while maintaining the band AMC mode if it is determined based on the channel status information that a channel status of each band of the neighboring base station satisfies a predetermined condition, wherein the channel status information is a CINR (carrier to interference and noise ratio) value, and wherein the predetermined condition comprises a maximum value of a standard deviation of a CINR of each band measured from the neighboring base station being less than a threshold value for band AMC allocation, and an average CINR of all frequency bands of the neighboring base station being greater than a band AMC-enter average CINR.