Patent ID: 8031740

Claim:
A time division multiple access communication network system in which a plurality of nodes each furnished with a communication capability are interconnected via a plurality of transmission channels, time slots of a same length are present on the plurality of transmission channels, the time slots used for data transmission and reception by the nodes are set in advance on each transmission channel, and the data transmission and reception among the nodes is performed by repeating a time segment which is a set of the time slots, in a cycle common to the plurality of transmission channels, the time division multiple access communication network system comprising: a transmitter node configured to transmit data; and a receiver node configured to receive the data, wherein the transmitter node includes: a first data transmission unit using a first transmission time slot to transmit first data within the time segment in one cycle and configured to transmit the first data in the first transmission time slot on a first transmission channel; and a second data transmission unit configured to transmit the first data transmitted by the first data transmission unit in a second transmission time slot, determined in advance, on a second transmission channel so as not to superimpose in time on the first transmission time slot, and wherein the receiver node includes: a first data reception unit using a first reception time slot to receive the first data within the time segment in one cycle and configured to receive the first data transmitted by the transmitter node in a first reception time slot, determined in advance, on the first transmission channel so as to superimpose in time on the first transmission time slot on the first transmission channel; and a second data reception unit configured to receive the first data transmitted by the second data transmission unit in a second reception time slot, determined in advance, on the second transmission channel so as to superimpose in time on the second transmission time slot.