Nec Corporation

Hiromu Ishikawa

Akio Tanaka

A near-field wireless communication circuitincluded in a terminalA 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 controllerexecutes preliminary processing for starting data transmission and reception in the near mode to/from a terminalB serving as a communication destination between the terminalsA andB by using the near-field wireless communication circuitwhich is set to the normal mode. Further, the controllerdetermines the availability of the data transmission and reception in the near mode to/from the terminalB by using a measured value of communication quality which has a correlation with a communication distance to the terminalB as a measure of the determination. Furthermore, when it is determined that the data transmission and reception in the near node are available, the controllerstarts the data transmission and reception to/from the terminalB by using the near-field wireless communication circuitwhich is set to the near mode, based on a result of the preliminary processing executed in the normal mode in advance.

Wireless communication device, wireless communication system, controlling method for wireless communication device, and recording medium

To improve operability by a user in a case of performing data transfer wirelessly in a near area, a near-field wireless communication circuitincluded in a terminalA 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 controllerexecutes preliminary processing needed for initiating data transfer in the near mode with a terminalB serving as a communication destination between the terminalsA andB by using the near-field wireless communication circuitwhich is set to the normal mode. Further, the controllerdetermines availability of the data transfer in the near mode with the terminalB by using a measured value of communication quality which has a correlation with a communication distance to the terminalB as a measure of the determination. Furthermore, when it is determined that the data transfer in the near mode is available, the controllerinitiates the data transfer with the terminalB by using the near-field wireless communication circuitwhich is set to the near mode, based on a result of the preliminary processing executed in the normal mode in advance.

Wireless communication device, wireless communication system, controlling method for wireless communication device, and recording medium storing program

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Tokyo, Japan

Hiromu Ishikawa