Multi-group hierarchy configuration method and device, multi-group hierarchy scheduling method and terminal

The embodiment of the invention provides a multi-group hierarchy configuration method and device, a multi-group hierarchy scheduling method and a terminal. The configuration method comprises the following steps: configuring a hierarchical tree-shaped association network for a terminal in the trunking communication system; the depth of the hierarchy group tree-shaped association network is N, N represents N different hierarchies, and N is a positive integer not less than 2; each hierarchy comprises at least one hierarchy group; the hierarchy priority of each hierarchy is decreased progressively along the depth direction; configuring one hierarchy group in the hierarchy group tree-shaped association network as a first PTT group of the terminal, and configuring a hierarchy group having a hierarchy association relationship with the first PTT group in the hierarchy group tree-shaped association network as a first monitoring group; or configuring a common group outside the hierarchical group tree-shaped association