基于QCI优先级的分组调度算法

长期演进(LTE)系统对用户同时获得的多种业务配置了服务质量(QoS)等级标识(QCI)优先级参数，从而优化了移动通信系统QoS评价体系。为此，结合M-LWDF算法，提出一种基于QCI优先级的分组调度算法。将QCI参数引入资源分配和分组调度判决机制，在用户与申请的多项业务间建立优先级关联性，实现多用户之间、单用户的多类型业务之间的联合优化调度。仿真结果表明，该算法能有效提高系统平均吞吐量，降低平均时延。

Packet Schedule Algorithm Based on QCI Priority

Quality of Service（QoS） Class Identifier（QCI） priority is defined for services differentiation in Long Term Evolution（LTE） system instead of four classes which are defined in Mobile Communication System（MCS）.A priority algorithm of packet schedule which is suitable to LTE is proposed in this paper.In order to build relationship between QCI priority and scheduling judgment,the MFQ-M-LWDF algorithm is proposed based on the M-LWDF algorithm.Simulation result indicates that the algorithm can improve the effective throughput and guarantee packet delay when scheduling.