Abstract: The present invention discloses a character input device for a terminal and a method of processing a character string, which allow the size of the character input device to be sufficiently reduced so as to improve the portability of the terminal, enable rapid and accurate character input in a touch typing fashion even in a mobile environment, and can minimize the number of presses of each key for the input of each character The character input device for a terminal includes a plurality of character keys and a function key, wherein the character keys include a character arrangement corresponding a first half of a “Sholes” character arrangement with respect to a center of the “Sholes” character arrangement, a character arrangement of a second half of the “Sholes” character arrangement being arranged on the character keys at locations mirror- image symmetrical to the first half with respect to the center of the “Sholes” character arrangement.

Abstract: In a method of automatically changing a frequency in a CDMA mobile communication system where multiple frequencies are assigned to a base transceiver station, states of an RFC, ACC, and SIC are periodically checked thus parts of them where errors are detected are cut off, a frequency processed by the part having the error is detected and excluded from overhead data, and, when the frequency which is processed by the part having the error is a fundamental frequency, other part is made to take charge of the fundamental frequency. Reversely, parts which are restored from an error state to a normal state are turned "ON", and the restored part is made to process the fundamental frequency as was before and a part which currently processes the fundamental frequency is made to process its original frequency when the restored part is one for the fundamental frequency.