| 摘要 |
Disclosed is an automatic frequency band selection method in a multi-band supported mobile station. In the method, the mobile station checks a Mobile Country Code (MCC) and a Mobile Network Code (MNC) from system information when international roaming has occurred, selects a frequency band corresponding to the MCC and MNC checked from a frequency band information table as a search frequency band, the frequency band information table storing in advance information for frequency bands used according to each country/network, and searches for the selected frequency band, thereby performing network synchronization. According to the automatic frequency band selection method, frequency search time can be reduced, network registration can be performed more quickly when international roaming has occurred, and unnecessary operations can be omitted. Consequently, it is possible to prevent the battery from being wasted.
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