In the era of interconnected by human-network-things

large amount of small data services occupy many non-renewable resources of wireless network in time

frequency and power domains.The paper proposed a "sub System-Carrier" technology sharing existing backward network system methods in time domain.At different times of the same frequency point

small data and backward systems can work together.In frequency domain

we propose bandwidth sharing method to solve the existing problems.In power domain

we propose an idle power factor

which combining the factor with the known selection algorithm.The remaining power can also be an important factor in the optimization of network resource selection.