MF—TDMA被广泛应用于现代宽带通信卫星系统的上行链路设计中,而时隙分配算法是系统资源利用率的重要保证。针对MF—TDMA时隙分配复杂,时隙资源浪费严重等难题,该文给出一种可动态调整载波信道的MF—TDMA系统时隙分配算法,算法将天基移动通信系统用户接入时隙分配问题分解为载波确定和载波内时隙分配两个部分,并针对用户终端载波确定问题,给出一种带载波调整的RCP算法(RCP—A)算法,解决现有方法在多业务多用户条件下资源浪费大、使用率低的问题;针对载波内时隙分配问题,采用基于倒序时隙编号时隙资源树管理方式,解决业务因时隙分配而带来的时延抖动问题;并给出了适合星上处理能力的时隙资源管理其实现方法。仿真测试显示,该实现方法适合于星上MF—TDMA无线资源管理器。
MF-TDMA has been widely applied to the up-link of broadband communication satellites, ant the timeslot allocation strategy is the key to guarantee the efficient utilization of the system resources. In this paper, the timeslot allocation technology with dynamic channel selection is proposed to confront the difficulty of complex allocation process and the low utilization rate. This allocation issue can be divided into two steps: channel select and in-channel slot allocation. To achieve the channel selection, RCP-A algorithm is proposed to provide better support to multi-users with multi-service and higher resource utilization ratio. To address the in-channel slot management, an inverse-numbering slots tree is selected as the management model to solve the problem of delay jitter brought by the slot allocation. Finally, a detailed management realization on satellite is given at last part, and the simulation shows that the allocation algorithm is of high efficiency in the management of timeslot resources and this method can be utilized in RRM (Radio Resource Management) on satellite.