COMMUNICATION METHOD AND COMMUNICATION DEVICE

摘要

Conventionally, when a mobile station in a CDMA mobile communication system searches for a channel other than the communication channel, the communication with a base station in the cell is sometimes interrupted. A method of the invention prevents the loss of information due to the interruption. The method comprises the first transmission step (the period for which the transmission power is p as shown in Fig. 10c) of transmitting signals at a transmission rate (R1) and at a transmission output level (P1) from the mobile station to the base station, the stop step (the period for which the transmission power is 0 as shown in Fig. 10c) of stopping the signal transmission from the mobile station to the base station, and the second transmission step (the period for which the transmission power is 2p as shown in Fig. 10c) of transmitting signals at a transmission rate (R2) higher than the transmission rate (R1) and at a transmission output level (P2) higher than the transmission output level (P1). During the second transmission step, information not transmitted during the stop step can be transmitted.