LTE系统DVRB和DPRB映射的研究与实现  

Research and Implementation on Mapping of DVRB and DPRB in LTE System

作　　者：罗佳[1] 李小文[1] 贾海峰[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电视技术》2014年第5期96-100,共5页Video Engineering

基　　金：国家科技重大专项(2011ZX03001-003-01)

摘　　要：通过对分布式虚拟资源块(Distributed Virtual Resource Block,DVRB)与物理资源块(Distributed Physical Resource Block,PRB)的研究,结合LTE系统特性,提出了一种适用于LTE系统的分布式虚拟资源块映射到物理资源块的DSP实现方案。该算法可直接计算出已排好序的物理资源块索引,最后将多个虚拟资源块映射模块的结果进行级联得到所需的物理资源块的索引,算法简单,计算量小,且便于在TMS320C64x DSP中实现。将该方案应用于TD-LTE射频一致性测试系统的开发中,实际运行验证了该方案的可行性、高效性。Research on the distributed virtual resource block （DVRB） and physical resource block （DPRB）, combined with the characteristics of the LTE system, a simple implementation approach is proposed in this paper about the mapping of the distributed virtual resource block and physical resource block, and implemented in the TMS320C64 x DSP, The sorted index of the physical resource blocks can be calculated directly, and finally the desired physical resource block index can be got by cascading the mapping module results of the plurality of virtual resource blocks, its implementation complexi-ty is very low. The program has been applied to the development of TD-LTE RF conformance test system. The running results verify its feasibility and ef-fectiveness.

关 键 词：长期演进 虚拟资源块 物理资源块 映射 DSP实现 

分 类 号：TN929.5[电子电信—通信与信息系统]