The invention provides a base-
station (BS)-combined direct-through terminal optimized
resource allocation method in a direct-through cellular
system. In order not to interrupt the normal communication of traditional cellular subscriber links and obtain effective
gain brought by device-to-device (D2D) direct-through technology, D2D subscribers are allowed to adopt a
resource allocation manner that resources are selected by a D2D subscriber end when uplink and downlink resources of the cellular
system are shared; at this time, the D2D subscribers only need to consider the interference to other cellular subscribers (CUs) arising from signals of the D2D subscribers; and meanwhile, a BS centralized-
control manner is adopted to carry out
resource allocation, the centralized-control
advantage of a BS is exerted, a BS and D2D terminal combined optimization manner is fully utilized, and the advantages of the two allocation manners are exerted. The BS-combined direct-through terminal optimized resource
allocation method in the direct-through cellular
system has the advantages that the
resource utilization ratio and availability of a coexistent system which is provided with the D2D direct-through technology are sufficiently improved, the
multiplexing gain of the resources are maximally developed, the
system capacity is increased, the service types are increased, and the
quality of service is ensured; and many chances for resource
multiplexing are developed under the condition of
limited resources from a novel resource allocation viewing angle.