| 摘要: |
| MAC层调度是TD-LTE系统最核心的部分，其目的是充分利用无线信道的时变特性，得
到多用户的分集增益。针对不同系统容量与吞吐量的设计目标原则，调度策略按照轮询、最
大载干比、比例公平3种方法实现。通过系统实现与实测表明，最大载干比算法以牺牲系统
容量为代价在系统吞吐量上有明显增益；比例公平算法则很好地兼顾了系统容量与吞吐量
，相比于最大载干比算法在容量上有显著提升。 |
| 关键词: TD-LTE MAC层调度策略 最大载干比 轮询 比例公平 |
| DOI： |
|
| 基金项目: |
|
| Analysis and implementation of radio resource scheduling in TD-LTE system |
| LI Ya-jun,WANG Quan-bao,DONG Ya-guang,ZHU Jun,MA Hong-bo |
| () |
| Abstract: |
| Medium Acess Control(MAC) scheduling is crucial to the TD-LTE(Time-division Lo
ng Term Evolution) network system. It is intended
for achieving multiple user gain by taking full advantage of the time-varying
property of wireless channel. MAC scheduler can be implemented using round-robin
, Max C/I and proportional fair scheduling policy with the different target for c
apacity, throughput or in between them. The field testing results show that Max
C/I algorithm has a considerable gain over others with respect to the throughput
at a cost of capacity while proportional fair scheduling achievs a desirable tr
adeoff between capacity and throughput. |
| Key words: TD-LTE MAC scheduling policy max C/I round-robin proportional fair |
