PURPOSE: To reduce the power consumption by decelerating a speed of a trigger clock for setting interval of electric field strength measurement and omitting the measurement of the electric field strength when the electric field strength is remarkably high or its change is small.
CONSTITUTION: When the electric field strength absolute value measurement mode is selected by the designation of a control processor 214, the processor 214 discriminates whether or not the electric field strength is at a threshold level or over to calculate a change in the electric field strength or to stop the calculation thereby deciding whether or not the speed of the trigger clock is decreased. When the electric field strength is not so much high, the electric field strength change calculation mode is selected, circuit comprising a register 210 and a subtracter 211 calculates a difference between a current signal and a signal of one preceding sample and the fluctuation in the electric field strength is obtained and it is inputted to the processor 214. When a change in the electric field strength is small, the trigger clock is decelerated. Thus, the frequency of the detection of the electric field strength in a base station for the mobile radio terminal equipment and the measurement of the electric field strength of an adjacent station is reduced.
HATANO YUJI
KIKUCHI TAKAFUMI
MURAKAMI YASUYUKI
HOTTA MASAO
