电子科技大学学报2017，Vol.46Issue(1)：15-20,6.DOI:10.3969/j.issn.1001-0548.2017.01.003
基于时隙捆绑预处理的LTE上行自适应传输
Preprocessing of TTI Bundling for Adaptive Transmission in LTE Uplink
摘要
Abstract
In order to improve the cell coverage performance, transmission time interval (TTI) bundling technique is employed in long term evolution (LTE) uplink for the voice over internet protocol (VoIP) service. Recently, a coverage-enhanced scheme makes user equipment (UE) transmitting up to five bundles under the same delay budget. However, the coverage-enhanced scheme lacks time for feedback processing, in which the UE transmitting power may be wasted for an unnecessary retransmission. Taking the issue into account, we propose a scheme based on preprocessing of TTI bundling for adaptive transmission in LTE uplink. Our scheme uses block error rate (BLER) versus signal-to-noise ratio (SNR) mapping mechanism to reduce unnecessary retransmission bundles and save UE power consumption, yielding higher throughput.关键词
自适应覆盖增强/混合自动重传(HARQ)/LTE上行链路/时隙捆绑/IP语音业务Key words
adaptive coverage enhancement/hybrid automatic repeat request (HARQ)/LTE uplink/time interval (TTI) bundling/VoIP分类
信息技术与安全科学引用本文复制引用
杨帆,李洋,谭佳佳,邵怀宗..基于时隙捆绑预处理的LTE上行自适应传输[J].电子科技大学学报,2017,46(1):15-20,6.基金项目
国家自然科学基金(61675040)；国家自然科学基金联合基金(U1633129)；四川省基础研究计划(2014JY0037) （61675040）
