摘要
为了提高宽带多媒体集群专网的频谱资源利用率以及提升专网基础设施不足情况下网络边缘用户信道质量,介绍了D2D技术,分析了该技术应用在LTE宽带多媒体集群系统中需要考虑解决的信道资源复用技术等问题。研究结果表明,多个D2D连接可以并行使用专网集群系统上行传输信道资源,系统整体信道质量等级得到了较大的改善。
In order to improve the space spectrum efficiency of broadband multimedia trunking system, and improve network edge user channel quality when the private trunking network infrastructure is insufficient, the paper introduces the D2D technology, analyzed issues needed to be considered such as channel resource reusing technology when D2D technology is employed in LTE broadband multimedia trunking system. Analysis results show that multiple D2D links can share the trunking system uplink transport channel resources, the system overall channel quality level is greatly improved.
出处
《移动通信》
2016年第16期66-72,共7页
Mobile Communications
关键词
D2D
PROSE
空间频谱利用率
CQI
device to device proximity service space spectrttm efficiency channel quality indicator
