Patent ID: 8996731
Filing Date: 2015-03-31
Classification: H04B,H04W

Abstract:
1. A communication apparatus comprising: a first communication unit configured to send a random number and first communication information including first identification information of the communication apparatus to a second communication apparatus, and to receive second communication information from the second communication apparatus by using near field communication, the second communication information including second identification information of the second communication apparatus necessary to a second communication and available protocol information indicative of a plurality of communication protocols which are available by the second communication apparatus, wherein the first communication unit is configured to (i) detect whether a RF field is present during a waiting phase that lasts for a first period of time and (ii) output an electromagnetic wave after the waiting phase ends, during a second period of time that occurs as a next period of time after the first period of time, based on no RF field being detected during the waiting phase; and a second communication unit configured to perform the second communication between the communication apparatus and the second communication apparatus by using the second communication information received by the first communication unit.