Terminal device and method for use in terminal device

A terminal device comprising:

• a receiver that receives a first packet signal including first position information indicating a position of a first radio device from the first radio device;
• a storage that stores a list containing the first position information;
• an acquirer that obtains second position information indicating the position of the terminal device;
• a determiner that determines whether it is possible for the receiver to receive a second packet signal from the first radio device based on the second position information and on the first position information contained in the list;
• and
• an estimator that estimates that a reception failure occurs in the receiver if the receiver fails to receive the second packet signal when the determiner determines that it is possible to receive the second packet signal.