Shenzhen, April 11, 2013 -Hong Kong Applied Science and Technology Research Institute (hereinafter referred to as ASTRI) participated in the first "China Electronic Information Expo" (CITE) from April 10 to 12, at the Shenzhen Convention and Exhibition Center on the 8th The exhibition hall (8C612-613) exhibits and publishes the latest R & D achievements and scientific research technologies to promote cooperation. ASTRI expects to further strengthen exchanges with the industry in Shenzhen and the Mainland through this exhibition, and expects attendees to fully understand ASTRI has developed a number of world-class technologies, registered a number of intellectual property rights, and actively transferred new technologies to The industry creates economic benefits for Hong Kong, Mainland China and neighboring regions. Dr. Zhuang Zheyi, Vice President of ASTRI ’s Communication Technology Group and Director of R & D Group, led the R & D team, brought a number of scientific research results to the participants, and negotiated cooperation opportunities, which highlighted the LTE technology, related integrated circuit design solutions, 2D-3D conversion platform and other projects. At the CITE New Product and New Technology Release Center held in Hall 8 on April 11, Miao Jiahao, Director of Wireless Software, ASTRI Communication Technology Group, and Dr. Zeng Jiangzhou, Manager of Wireless System, ASTRI Communication Technology Group, also published topics Lecture, introducing ASTRI's LTE small cell LTE small cell baseband core technology and LTE packet core evolution (EPC) and base station gateway solutions, so that the participants can understand more deeply that LTE will bring disruption to wireless communication Revolution. ASTRI ’s LTE small cell baseband core technology includes all physical layer reference designs applied to hardware prototypes. The hardware prototype includes programmable devices optimized for small base stations. The ASTRI reference design has the advantage of being fully compliant with 3GPP standards and verified by IOT, supporting shared design and code for FDD and TDD, and applying advanced algorithms and efficient hardware implementation architectures, suitable for optimized devices for small base stations, and Use the built-in multi-antenna input and output technology. EPC (Evolved Packet Core) is an all-IP mobile core network for 3GPP LTE. It supports the IP connection between LTE and the core IP network, while ensuring a seamless communication connection for mobile devices. ASTRI has an in-depth understanding of LTE and EPC. The LTE EPC solution it provides includes three logical network modules: mobility management module (MME), service gateway (S-GW) and data network gateway (PDN-GW ). In addition, the basic function of the LTE small cell gateway solution is to converge a large number of small cell base stations through the fixed line broadband connection, such as cable modem, DSL, or optical fiber, thereby effectively connecting to the operator's core network. ASTRI provides technical authorization for a fully functional LTE small cell gateway solution, which includes three logical modules: security gateway (SeGW), home eNode B * gateway (HeNB GW), and home eNodeB management system (HeMS). About Hong Kong Applied Science and Technology Research Institute The Hong Kong Applied Science and Technology Research Institute (ASTRI) was established by the Hong Kong Special Administrative Region Government in 2000. Its mission is to promote the development of Hong Kong ’s technology industry through applied technology research. In 2006, the Chinese Academy of Sciences was commissioned by the Innovation and Technology Commission to undertake the "Hong Kong Information and Communication Technology R & D Center". ASTRI ’s research spans five related fields, including communications technology, enterprise and consumer electronics, integrated circuit design, materials and packaging technology, and biomedical electronics. ASTRI also established an "Information Research Office" to conduct research on emerging and cross-domain technologies. Since its establishment, ASTRI has developed a number of world-class technologies, trained many outstanding researchers, registered a number of intellectual property rights, and transferred new technologies to the industry for Hong Kong, Mainland China and neighboring regions. Create economic benefits. For more detailed information, please visit: http: //. ONU equipment is composed of core functional circuits, power supply and management and other common units and communication interfaces. The core functional blocks of ONU include user and service multiplexing functions, transmission multiplexing functions, and ODN interface functions. User and service multiplexing functions include assembling information from each user, allocating information to be transmitted to each user, and connecting a single service interface function; transmission multiplexing function includes analyzing the signal from the ODN and extracting the part belonging to the ONU and reasonable The information to be sent to the ODN is arranged locally; the ODN interface function provides a series of optical physical interface functions, including optical/electrical and electrical/optical conversion. Xpon 1Ge Onu,Xpon Onu,Gepon Onu,Gepon Ont,FTTH XPON ONU Shenzhen GL-COM Technology CO.,LTD. , https://www.szglcom.com
If each ONU uses more than one optical fiber to connect to the ODN, then there is more than one physical interface. The ONU service function block provides user-side functions, which includes providing user service interfaces and adapting user information to the form of 64kbit/s or n×64kbit/s; this function block can serve one or several users and can be based on The physical interface provides signaling conversion function. ONU general function blocks provide power supply functions and system operation, management and maintenance (OAM) functions. The power supply function includes AC to DC or DC to AC, and the power supply mode is local power supply or remote power supply. Several ONUs can share a power supply. ONUs should also work normally when powered by a backup power supply.