基于小数据分组业务在LTE系统上的增强研究

Study on Enhancements of LTE System for Diverse Data Applications

当前移动通信网络中智能终端数量激增,数据业务种类繁多。在智能终端数据业务中,小数据分组业务占比日趋增长,对系统性能和用户体验提出了更高的要求。由于LTE系统最初的设计并未考虑小数据业务的影响,因此如何引入增强技术以提升LTE网络应对小数据业务的能力,是值得关注的问题。以3GPP LTER11版本中对于多数据应用增强(eDDA)技术的讨论为基础,讨论LTE系统应对小数据分组业务的相关关键技术。首先讨论了小数据分组业务对于LTE系统的影响因素,然后对于相关增强技术,特别是非连续接收、RRC状态转换等进行详细讨论分析,最后对未来R12版本中eDDA的进一步研究工作进行展望。

With sharply increased number of smart phone in current radio communication networks,there are wide varieties of data applications,of which the ratio of small data applications is increasing.Large problems to LTE systems in network efficiency and user experience were introduced.Due to the design principle of LTE is for high data rate,it is necessary to enhancement the ability of the networks to support small data applications.The discussion was based on the study of eDDA in 3GPP LTE R11.Firstly,the impacts of small data applications to LTE networks were illustrated.Then,it was discussed that discontinued reception and setting of RRC states transition were two of the most important techniques to improve the network ability.The possible further eDDA researches in LTE R12 work were also introduced at last.