COMMUNICATION TERMINAL DEVICE, METHOD FOR ACQUIRING POSITION INFORMATION BY COMMUNICATION TERMINAL DEVICE, AND PROGRAM PRODUCT FOR CONTROLLING COMMUNICATION TERMINAL DEVICE

摘要

A communication terminal capable of obtaining assist data without making a configuration of an information providing device for transmitting the assist data complicated is provided. Processing performed by a communication terminal 100 includes the steps of: storing an obtained identifier in a buffer area (430) for a base station for which assist data should be obtained and a buffer area (410) for a standby base station (S716); obtaining an identifier of a wireless base station from a received signal and storing the identifier in a RAM 346 (S724); storing an identifier of a wireless base station after change in the buffer area for a standby base station (S732); and storing the identifier stored in the buffer area for a standby base station in the buffer area for a base station for which assist data should be obtained when the identifier stored in the buffer area for a standby base station is not stored in the buffer area for a base station for which assist data should be obtained (NO at step S740) (step S742).