摘要
在WCDMA系统中,小区的无线资源管理通常是在无线网络控制器(RNC)节点内完成.然而,专用传输信道上传输格式可以逐帧改变,基于传输格式的快速变化实际上构成一种无线资源控制能力。这种控制能力是由UE和Node B的MAC实体以及物理层协同完成的,完全不需要三层信令参与。该文根据WCDMA专用传输信道传输格式的快速变化能力,结合基于类的QoS策略,针对上行信道提出一种负荷控制算法,用以支持全分组业务。研究结果表明,在多业务环境下,各个用户能公平共享无线资源、同时能够实现实时业务时延保证。
In WCDMA system, the radio resource management entity is usually implemented in the radio network controller. However, transport format in dedicated channels can be changed frame by frame. This fast format change can be seen as a fast part of the radio resource control, which is fulfilled by MAC and physical layer in user equipment and node B without any need for L3 signaling. Based on this capability and class-based QoS policy, this paper proposed an algorithm for WCDMA uplink load control. The algorithm consists of iterative rate control and packet scheduling. Simulation results show that the proposed algorithm can achieve fair sharing radio resource and guarantee QoS under multi-service environments.
出处
《电子与信息学报》
EI
CSCD
北大核心
2004年第3期427-434,共8页
Journal of Electronics & Information Technology
基金
中兴通讯研究基金支持项目
关键词
WCDMA
无线资源管理
负荷控制
分组调度
WCDMA, Radio resource management, Transport format, Packet scheduling, Load control
