Abstract: A near-field wireless communication circuit 10 included in a terminal 1A can perform switching between a normal mode and a near mode which has a relatively short communicable distance and a relatively high transmission rate as compared with those in the normal mode. Further, a controller 13 executes preliminary processing for starting data transmission and reception in the near mode to/from a terminal 1B serving as a communication destination between the terminals 1A and 1B by using the near-field wireless communication circuit 10 which is set to the normal mode. Further, the controller 13 determines the availability of the data transmission and reception in the near mode to/from the terminal 1B by using a measured value of communication quality which has a correlation with a communication distance to the terminal 1B as a measure of the determination.

Abstract: To improve operability by a user in a case of performing data transfer wirelessly in a near area, a near-field wireless communication circuit 10 included in a terminal 1A is able to switch between a normal mode to perform OFDM and a near mode with a relatively short communicable distance as compared with that in the first communication mode and to perform spread spectrum. A controller 13 executes preliminary processing needed for initiating data transfer in the near mode with a terminal 1B serving as a communication destination between the terminals 1A and 1B by using the near-field wireless communication circuit 10 which is set to the normal mode. Further, the controller 13 determines availability of the data transfer in the near mode with the terminal 1B by using a measured value of communication quality which has a correlation with a communication distance to the terminal 1B as a measure of the determination.

Abstract: To improve operability by a user in a case of performing data transfer wirelessly in a near area, a near-field wireless communication circuit 10 included in a terminal 1A is able to switch between a normal mode to perform OFDM and a near mode with a relatively short communicable distance as compared with that in the first communication mode and to perform spread spectrum. A controller 13 executes preliminary processing needed for initiating data transfer in the near mode with a terminal 1B serving as a communication destination between the terminals 1A and 1B by using the near-field wireless communication circuit 10 which is set to the normal mode. Further, the controller 13 determines availability of the data transfer in the near mode with the terminal 1B by using a measured value of communication quality which has a correlation with a communication distance to the terminal 1B as a measure of the determination.

Abstract: A near-field wireless communication circuit 10 included in a terminal 1A can perform switching between a normal mode and a near mode which has a relatively short communicable distance and a relatively high transmission rate as compared with those in the normal mode. Further, a controller 13 executes preliminary processing for starting data transmission and reception in the near mode to/from a terminal 1B serving as a communication destination between the terminals 1A and 1B by using the near-field wireless communication circuit 10 which is set to the normal mode. Further, the controller 13 determines the availability of the data transmission and reception in the near mode to/from the terminal 1B by using a measured value of communication quality which has a correlation with a communication distance to the terminal 1B as a measure of the determination.