Patent ID: 8219113

Claim:
A mobile communication terminal that acquires position information of a cell to which the mobile communication terminal currently belongs, wherein the cell is from a network comprising a plurality of cells, the position information is from a plurality of position information of the plurality of cells, and the plurality of cells comprises a wireless area that is registered in the network, the mobile communication terminal comprising: a communication section that receives, in each cell of the plurality of cells, the position information about the cell to which the mobile communication terminal currently belongs, and cell information for identifying the cell; a storage section that associates and stores the position information and the cell information received in the communication section; a counter that counts a number of handovers that take place upon a move between cells providing different cell information; a global positioning system section that performs global positioning system positioning to be assisted by the position information stored in the storage section; and a control section that decides whether the position information stored in the storage section is valid or invalid, based on the number of handovers counted on the counter, wherein, if the number of handovers counted on the counter is equal to or greater than a threshold, the control section makes the communication section acquire new position information from the network, supply the new position information to the global positioning system section and store the new position information in the storage section, and, if the number of handovers counted on the counter is less than the threshold, supplies the position information stored in the storage section to the global positioning system section.