Patent ID: 9002285
Filing Date: 2015-04-07
Classification: A61B,H04W

Abstract:
1. A portable wireless terminal that performs autonomous distributed wireless communication with a wireless terminal, the wireless terminal including a second channel setting unit that sets a channel to be used for wireless communication with the portable wireless terminal, a trigger receiver unit that receives a trigger, a vacant channel search unit that searches for a vacant channel according to the received trigger and sends a signal for changing the set channel to the second channel setting unit based on a search result, and a transmitter unit that transmits a signal for reporting the change to the portable wireless terminal, the portable wireless terminal comprising; a trigger sending unit that sends a trigger to the wireless terminal, the trigger being used for allowing the wireless terminal to search for a vacant channel; a first channel setting unit that sets a channel to be used for wireless communication with the wireless terminal based on channel information which is a response for the sent trigger from the wireless terminal: an event detection unit that detects a predetermined event after wireless communication using the channel that has been set by the first channel setting unit is started, wherein the trigger sending unit sends the trigger if the event detection unit detects the predetermined event, wherein the event detection unit detects the portable wireless terminal being operated.