摘要
在当前3GPPLTE上行链路HARQ(Hybrid Automatic Repeatre Quest)重传方案的基础上,提出了一种改进的HARQ重传冗余版本选择方案。该方案利用以往重传冗余版本合并后的信息以及当前上行链路的信道质量信息,选择能够使系统频谱利用率最高的重传冗余版本,通过链路仿真证明所提出方案的有效性。
Based on the current HARQ retransmission scheme in the 3GPP LTE uplink, this paper provides an im- proved scheme of selecting HARQ retransmission redundancy version. The optimized scheme selects the retransmission redundancy version which can maximize the system spectral efficiency, utilizing the combined information of previous retransmission redundancy versions and the channel quality information of the current uplink, and this paper shows the effectiveness of the optimized scheme by link-level simulation.
出处
《计算机工程与应用》
CSCD
2012年第13期94-99,共6页
Computer Engineering and Applications
关键词
第三代合作项目(3GPP)长期演进
混合自动重传请求
Chase合并
增量冗余
频谱利用率
3rd Generation Partnership Project Long Term Evolution (3GPP LTE)
Hybrid Automatic Repeat reQuest(HARQ)
Chase Combining(CC)
Incremental Redundancy(IR)
spectral efficiency