多通道滤波器在多频融合便携站中的应用  

Application of Multi-channel filters in Multi-Frequency Fusion Portable Stations

作　　者：李杨 王明 LIYang;WANG Ming(Shijiazhuang Yunba Technology Co.,Ltd.,Shijiazhuang 050091,China;Hebei Far-East Communication System Engineering Co.,Ltd.,Shijiazhuang 050200,China)

机构地区：[1]石家庄市云巴科技有限公司,河北石家庄050091 [2]河北远东通信系统工程有限公司,河北石家庄050200

出　　处：《计算机与网络》2023年第22期52-57,共6页Computer & Network

摘　　要：近年来通信技术在各行业应用中需求不断细化,设备小型化、功能集成化趋势不断加深,不同功能领域设备不断融合。根据长大隧道建设期临时通信和运营期应急通信需求,提出使用LTE基站与Mesh自组网基站融合的方案,便携站基于TD-LTE技术,集LTE核心网、LTE基站、Mesh自组网于一体,可快速构建区域型无线专网覆盖,提供宽带接入、宽带集群和宽带自组网等功能。系统携行方便、部署灵活,可迅速提供通信指挥和数据传输等功能,满足长大隧道内LTE网络全覆盖或多区域快速组网通信的需求。该方案存在不同制式、不同频段通信基站的融合,存在基站上下行通信链路的干扰、基站接收机的带内干扰和底噪声较高、基站容量利用率与接收灵敏度不高等问题,影响设备正常功能实现。经多次测试和研究,便携站通过引入高性能滤波器消除LTE基站与Mesh基站上、下行链路的相互干扰,可同时实现二者功能。In recent years,the demands for communication technology in various industry applications are constantly refined,and the trend of equipment miniaturisation and functional integration is deepening,with equipment in different functional areas fused[1].According to the needs for temporary communications during the construction period and emergency communications during the operation period of the long tunnel,a fusion method of LTE base station and Mesh Ad-Hoc network base station is proposed.Based on TD-LTE technology,LTE core network,LTE base station and Mesh Ad-Hoc network,the portable station can quickly build a regional wireless network,providing broadband access,broadband trunking,broadband Ad-Hoc network and other functions.The system is easy to carry,flexible in deployment,and can quickly provide communication command and data transmission functions to meet the needs of full LTE network coverage or multi-area rapid network communication in long tunnels.In this solution,there exist several problems,such as the integration of base stations of different systems and frequency bands,the interference of uplinks and downlinks of base stations,the high in-band interference and bottom noise of base station receivers,and the poor capacity utilization and reception sensitivity of base stations,which affect the realization of normal functions of the equipment.After many tests and researches,the portable station eliminates the mutual interference of the uplink and downlink of the LTE base station and Mesh base station by introducing a high-performance filter,which can simultaneously enable both functions.

关 键 词：便携站 LTE基站 Mesh自组网 滤波器 长大隧道 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]