下一代无线通信网络将出现超密集的网络部署、指数增长的数据流量、多样化的移动业务等需求。非授权频段独立组网场景下的LTE-Unlicensed（LTE-U）技术被认为是应对上述需求的关键技术之一。由于缺乏授权频段和基础设施的支持，该项技术面临着设计复杂度高、异构网络融合难度大等问题。针对这些问题，本项目借鉴现有IEEE 802.11系列标准中的接入机制，设计独立组网LTE-U的轻量级抗干扰接入模型；提出该接入机制下的异构网络融合方法，构建LTE-U与WiFi的友好共存网络；提出非授权频段的分布式资源分配算法，促进共存网络的融合、提高资源利用率；利用真实的网络用户数据对所提方案进行仿真验证，增加研究结果的实效性。本项目的研究有助于解决独立组网LTE-U中的关键技术，并促进其在未来移动通信网络中的应用。研究成果有助于探索在非授权频段上异构网络的共存、融合、优化理论方法。

Standalone LTE-U is considered as an emerging technology to deal with the requirements of ultra-dense network deployment, explosive growth of data rate, and various mobile services in the era of next generation wireless communication. However, without the help of an auxiliary licensed band and infrastructure, standalone LTE-U still faces lots of harsh problems, such as high design complexity, difficult of heterogeneous convergence. To deal with these problems, this project aims to design some low complexity and anti-jamming access mechanisms for standalone LTE-U based on the existing IEEE 802.11 standards. Thereafter, this project investigates LTE-U and WiFi convergence schemes to construct a harmonious coexistence network. Furthermore, this project proposes some distributed resource allocation algorithms for unlicensed bands to promote network convergence and improve resource utilization. To increase the effectiveness of the research results, this project uses real network user data to do the simulation. The goal of this project is to provide key technologies for standalone LTE-U, and promote its application in future wireless communication networks. The results of the study help to explore the coexistence, convergence and optimization theories of heterogeneous networks in unlicensed band.