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

摘要

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. Furthermore, when it is determined that the data transmission and reception in the near node are available, the controller 13 starts the data transmission and reception to/from the terminal 1B by using the near-field wireless communication circuit 10 which is set to the near mode, based on a result of the preliminary processing executed in the normal mode in advance.

主权项

1. A wireless communication device comprising:
a near field wireless communication circuit capable of performing switching between a first communication mode and a second communication mode that has a relatively short communicable distance and a relatively high transmission rate as compared with a communicable distance and a transmission rate of the first communication mode; and a controller that controls the switching between the first and second communication modes, wherein the controller is configured to: negotiate, with a communication destination device through the near field wireless communication circuit that is set to the first communication mode, to execute preliminary processing to satisfy or designate a condition for starting data transmission and reception in the second communication mode to/from the communication destination device; determine an availability of the data transmission and reception in the second communication mode to/from the communication destination device by using a measured value of communication quality that has a correlation with a communication distance to the communication destination device as a measure of the determination; and start, when it is determined that the data transmission and reception are available and when the condition is satisfied or designated as a result of the preliminary processing, the data transmission and reception by using the near field wireless communication circuit that is set to the second communication mode, wherein the preliminary processing includes at least one of displaying a message to a user of the wireless communication device and accepting input operation by the user, wherein the controller is further configured to determine that the condition is satisfied or designated when at least one of the following conditions is met:
a condition that the message is displayed to the user; anda condition that the input operation is accepted.