| 摘要: |
| TD-LTE系统中小区边缘终端的信道质量较差，为了达到较好的上行覆盖LTE提出了TTI Bund
ling技术。通过研究3GPP TD-LTE协议中物理层协议和MAC协议，归纳
出TTI Bunding模式在不同的上下行配比帧结构上HARQ进程相关连的授权、发送和基站反馈
间的时序关系。TTI Bundling实现是基于TD-LTE不同配比下的帧结构时序关系。最后以TD
-LTE协议栈为基础，使用规范和描述语言（SDL）/数表结合仿真法（TTCN）实现该功能。 |
| 关键词: TD-LTE系统 上行覆盖 TTI Bundling 帧结构 |
| DOI： |
|
| 基金项目:国家科技重大专项(2011ZX03001-001-02) |
|
| Implementation of TTI bundling in TD-LTE mode terminal |
| SHEN Min,HU Lei |
| () |
| Abstract: |
| The user equipment has poor channel quality at the Cell edge in TD-LTE
system. In order to achieve better uplink coverage, the LTE proposed transmissi
on from binding Transmission Time Interval(TTI) Technology. Through the study o
f 3GPP TD-LTE physical layer protocol and MAC protocol, the TTI B
undling patterns in different uplink and downlink frame structure with UL grant,
UL transmission and feedback on one HARQ process are summarized.Realization of
the TTI Bundling is based on the temporal relations in frame structure.
Finally, specification and description language(SDL)/Tree and Tabular Combined
Notation(TTCN) are used to realize the function. |
| Key words: TD-LTE system uplink coverage TTI Bundling frame structure |
