【作者】 王晓天；

【导师】 陈立伟； 曹毓高；

【作者基本信息】 哈尔滨工程大学 ， 电子与通信工程， 2019， 硕士

【摘要】 通信技术的飞速发展,产生了很多新的技术和业务模式,通信领域中也存在多种制式共存的局面,如何实现多制式的共建,不同制式的网络之间如何进行业务分流,如何建设覆盖全、质量好、速度快的无线网络是室内分布系统需要重点考虑的问题。室内覆盖主要针对的是一些规模比较大、具有重要应用和用户较多的场景,如车站、体育馆、商场等。在室内系统中,通常存在不同的网络,主要包括GSM、TD-SCDMA、WLAN以及TDD-LTE这4种,不同的网络具有不同的业务范围,网络的覆盖能力也各有不同,如何针对不同区域、不同场景进行4种网络的协同建设,该问题的研究不但具有理论上的研究意义,同时对于实用性而言也是有价值的。多网融合室内分布系统中涉及多个系统,这些系统是通过多频合路器POI来进行合路接入,将它们统一到一个室内分布系统之中,实现对大型室内环境的覆盖。针对上述设计目标,本论文首先针对相关领域的相关技术展开研究,结合研究内容,对于国际上和国内的一些比较权威的文献进行了检索和研读,总结出本论文领域的研究水平,相关技术的发展状况和发展趋势,存在哪些技术上的难点和瓶颈这样的一些问题。对于相关领域的发展趋势和面临的技术难点等进行分析,对进行系统设计所涉及的各种技术的特点、优势和不足之处进行分析和对比。然后研究室内分布系统的分类,比较各个类别的优缺点。对GSM、TD-SCDMA、WLAN以及TDD-LTE这4种网络的技术标准进行研究,对它们各自的技术特点、应用范围、优缺点等进行比较研究。基于四网协同建设的需求,对室内分布系统的统传播模型、链路预算、信源规划及设计、容量核算、小区规划、天线功率规划、覆盖设计、切换和外泄设计、合路方式设计等相关技术进行研究。针对商业楼宇、居民小区、校园等不同应用场景,有针对性地设计相应的系统改造或建设方案。最后针对某大学进行室内分布系统的规划和系统设计,然后进行系统测试和分析,根据测试结果进行系统改造,对改造前后的主要的技术指标进行比较分析。测试数据表明,经过系统改造以后,网络的整体性能得到较大改善,用户的体验也更加满意,系统建设也做到不重复、不浪费、减少干扰,实现网络投资效率的最优化。更多还原

【Abstract】 The communication technology industry has developed fast in recent,many new technologies associate with communication technology and service modes have emerged.There are also many kinds of modes coexisting in the field of communication.How to realize the co-construction of multi-mode,how to distribute services among different modes of networks,and how to build a wireless network with full coverage,good quality and fast speed are indoor distributed systems.For these problems,we must pay more special consideration.The main considerations for indoor coverage are large buildings,office buildings,stations,shopping malls and so on.In indoor systems,there are usually different networks,mainly including GSM,TD-SCDMA,WLAN and TDD-LTE.Different networks have different business scopes and different network coverage.How to construct four kinds of networks in different areas and different scenarios has important theoretical significance and practical significance,and it has many application in many fieldsThe basic principle of indoor distribution system with multi-network convergence is to use multi-frequency combiner POI to unify multiple systems into indoor distribution system to achieve coverage of large indoor environment.Firstly,this paper analyzes the related technologies of indoor distribution system and the research status at home and abroad,and compares the advantages and disadvantages of various technologies.Then we study the classification of indoor distribution system and compare the advantages and disadvantages of each category.The associate technologies such as GSM,TD-SCDMA,WLAN and TDD-LTE are studied,and we research the characteristics of these technologies,analyze the application of these technologies and analyze their advantages and disadvantages.Based on the requirement of the cooperative construction of the four networks,this paper studies the related technologies of the indoor distributed system,such as the system propagation model,link budget,source planning and design,capacity accounting,cell planning,antenna power planning,coverage design,switching and leakage design,and combination mode design.For commercial buildings,residential areas and other scenarios for the design of the scheme Finally,the indoor distribution system planning and system design are carried out for a university,and then we analyze and compare the performance of the system,the conclusion is derived.The main technical indicators before and after the reform are compared and analyzed.The experiments results show,when the system is modified,the overall performance of the network system has been improved significantly,and the user experience is more satisfactory.The system construction also achieves no repetition,no waste,and interference is reduced,and optimize the efficiency of network investment.更多还原