Communication apparatus, transmission scheme setting method, program, and radio communication system

A transmission scheme rate setting method in a communication apparatus that performs radio communication with another communication apparatus using a superframe having a beacon period and data transmission period, wherein the radio communication is performed by applying repetitions of a predetermined frequency hopping pattern, comprising:

• a time region division step of dividing the superframe into a plurality of time regions;
• a communication state monitoring step of monitoring a communication state in each of the plurality of time regions obtained in the time region division step;
• a transmission scheme rate setting step of setting, based on a monitoring result obtained in the communication state monitoring step for each of the plurality of time regions, a transmission scheme rate to be used in each of the plurality of time regions;
• and
• a time dependency determining step of determining whether or not time-dependent interference is present during communication with the other communication apparatus, by performing receptions by sequentially changing frequency hopping patterns except for the predetermined frequency hopping pattern, and determining that the time-dependent interference is present when any communication is received using one of the sequentially changed frequency hopping patterns.

A non-transitory computer readable medium, having stored thereon a program for causing a computer to execute a transmission scheme rate setting method in order to set a transmission scheme rate in a communication apparatus that performs radio communication with another communication apparatus using a superframe having a beacon period and data transmission period, wherein the radio communication is performed by applying repetitions of a predetermined frequency hopping pattern, the method comprising:

• a time region division step of dividing the superframe into a plurality of time regions;
• a communication state monitoring step of monitoring a communication state in each of the plurality of time regions obtained in the time region division step;
• a transmission scheme rate setting step of setting, based on a monitoring result obtained in the communication state monitoring step for each of the plurality of time regions, a transmission scheme rate to be used in each of the plurality of time regions;
• and
• a time dependency determining step of determining whether or not time-dependent interference is present during communication with the other communication apparatus, by performing receptions by sequentially changing frequency hopping patterns except for the predetermined frequency hopping pattern, and determining that the time-dependent interference is present when any communication is received using one of the sequentially changed frequency hopping patterns.

A radio communication system including a first communication apparatus on a host side and a second communication apparatus on a device side, wherein the first communication apparatus and the second communication apparatus perform radio communication using a superframe having a beacon period and data transmission period, wherein the radio communication is performed by applying repetitions of a predetermined frequency hopping pattern, wherein the first communication apparatus comprises:

• a time region division unit that divides the superframe into a plurality of time regions;
• a communication state monitoring unit that monitors a communication state in each of the plurality of time regions obtained by the time region division unit;
• a transmission scheme rate setting unit that sets, based on a monitoring result obtained by the communication state monitoring unit for each of the plurality of time regions, a transmission scheme rate to be used in each of the plurality of time regions;
• and
• a time dependency determining unit that determines whether or not time-dependent interference is present during communication with the other communication apparatus, wherein the time dependency determining unit performs receptions by sequentially changing frequency hopping patterns except for the predetermined frequency hopping pattern, and determines that the time-dependent interference is present when any communication is received using one of the sequentially changed frequency hopping patterns.