D2D通信分为集中式控制和分布式控制。集中式控制由基站控制D2D连接，基站通过终端上报的测量信息，获得所有链路信息，但该类型会增加信令负荷(D2D communication is divided into centralized control and distributed control. Centralized control is connected by the base station. The base station obtains all link information t