A method for establishing D2D
multicast communication and allocating
wireless source thereof in the IMT-A
system is used for the data communicating service based on local sharing in the
system. The
multimedia multicast technology is introduced into the D2D technology for solving the high-speed
data sharing request of one mobile terminal on multiple mobile terminals to realize the eNB-assisted D2MD communication under the IMT-A
honeycomb network. The method comprises a control signaling interactive progress of the eNB and the D2MD group in the communication establishing process and a
wireless source allocating progress of the eNB for the D2MD group. The method for establishing the D2D
multicast communication and allocating
wireless source thereof in the IMT-A
system has the advantages of reducing the eNB load under the IMT-A, and greatly improving the
spectral efficiency and
throughput capacity of a
cell as the D2MD can reuse the spectral source under the premise of not affecting the communication of
honeycomb users. The wireless source allocating progress of the eNB for the D2MD comprises three steps of mode selecting, spectrum allocating and power controlling. The method aims at the applying requests of the D2MD users, ensures the QOS (
quality of service) of all users as much as possible, is simple in operation, clear in
algorithmic logic and low in complexity, and has better promoting and applying prospects.