According to the actua1 request in modern batt1efield and the resu1ts of comparison between the "peer-to-peer" and the "hub-termina1" architecture in mi1itary communication , the architecture of a TDMA peer-to-peer tact1c radio network with hub is presented. Based on ana1ysis of all avai1ab1e slot assigning schemes , an improved slot assigning scheme is given which uses binary tree and dynamic weight.