发布网友 发布时间:2022-04-23 08:09
共4个回答
热心网友 时间:2022-06-18 04:11
"Td-scdma wireless communication network system is the third generation mobile communication is one of the three main standards and protocols experienced from R4 / R5 / R6 / R7 and evolution of LTE, bearing in HSPA data business 10Mbps can achieve maximum bandwidth downward, technical development has quite mature for mobile users, broadband service. Td-scdma is independent research and development of the third generation mobile communication technology standards, and other formats CDMA20000 and WCDMA compared with many advantages and features of td-scdma, making it a broad network planning aspects in the theoretical research and practical application, this paper firstly summarized the third generation mobile communication system, for td-scdma system development and technical characteristics of which are introced, especially several key technologies are introced, such as its unique frame relay switching, smart antenna, and expounds the background, the research work of td-scdma network planning gives a detailed description and derivation conclusions, and then discusses the key problem: the network planning, wireless communication link budget, wireless coverage and capacity model, and the simulation analysis of wireless network planning etc. Finally introces the Shanghai Lin planning software Nest td-scdma, through the examples, using the planning of the wireless network planning software simulation, and the final output."
热心网友 时间:2022-06-18 04:11
"TD-SCDMA wireless network communication system is the third generation mobile communications, one of the three mainstream standards, the agreement R4/R5/R6/R7 as well as from experience the evolution of LTE, HSPA bearer in the downlink of the data bandwidth can reach the maximum 10Mbps, technology development has reached a mature state, is able to provide users with mobile broadband Internet access. TD-SCDMA is China's own research and development of third generation mobile communication technology standards, and other CDMA20000 and WCDMA standard has many advantages compared to and characteristics, making TD-SCDMA in network planning has a wide range of theoretical research and practical applications, the article provides an overview of the first third-generation mobile communications systems, for TD-SCDMA system and the technical characteristics of the development process is introced, in particular, several of which focused on key technologies, such as its unique frame structure, such as smart antenna switching relay, and thus on the background research work, and then on the TD-SCDMA network planning and gives a detailed description of the conclusions derived, and then discussed the core network planning issues: Link budget, the wireless propagation model, wireless coverage and capacity of wireless network planning and simulation analysis. Finally, the planning software Bailin Shanghai Nest TD-SCDMA, by example, using the planning software for wireless network planning and simulation analysis, the final output. "
热心网友 时间:2022-06-18 04:12
“The TD-SCDMA wireless network communication system is third generation two-way charges for cellular phones one of three big mainstream standards, the agreement has experienced from R4/R5/R6/R7 and even the LTE evolution, the load bearing may achieve 10Mbps in the HSPA data traffic downward maximum band width, the technological development already quite maturely, can provide the wide band surfer service for the mobile subscriber. TD-SCDMA is our country independent research and development third generation two-way charges for cellular phones technical standard, and so on other service patterns compares with CDMA20000 and WCDMA has many merits and the characteristic, this enabled TD-SCDMA to have the broad fundamental research and the practical application prospect in the network planning aspect, the article has first outlined the third generation mobile communication system, carried on to the TD-SCDMA system's development process and the technical characteristic said that especially to several key technologies performed to introce with emphasis, compared to, if the unique frame structure, the smart antenna relay cut and so on, and elaborated from this research work's background, has given the detailed description and the inferential reasoning conclusion again to the TD-SCDMA network planning, then discussed in the network planning core issue: The link budget, disseminates the model wireless, wireless cover and capacity, as well as wireless network planning simulation analysis and so on. Finally introced Shanghai hundred forest planning software Nest TD-SCDMA, through the example, uses this planning software to the wireless network plan and the simulation analysis, final output result.”
热心网友 时间:2022-06-18 04:12
"TD-SCDMA wireless the network communication system is three ambulation communication three greatest main current standard of a, agreement experience from the R4/R5/R6/R7 is go to LTE of evolve, loading at the HSPA data business bottom line the biggest bandwidth can attain a 10 Mbps, technique development already equal mature, can provide breadth to take to get to the Internet service for the mobile user.TD-SCDMA is our country independence development of three move communication technique standard, compare many advantage and characteristics with CDMA20000 and WCDMA etc. other make type, this make TD-SCDMA at network programming the aspect have comprehensiveness of theories research with actual application foreground, the article all said first three move correspondence system, to TD-SCDMA system of development process and technique characteristics carry on introction, as to it's particularly medium a few key technique take into a point introction, for example it special structure, the intelligence antenna connect dint to cut over etc., and elaborated research work from here of background, again to the network of the TD-SCDMA programming give detailed description and dece conclusion, immediately after discussion network programming medium of core problem:network budget, wireless dissemination model, wireless overlay and capacity, and wireless network programming of imitate true analysis etc..End introction 100 woods in Shanghai programming the TD-SCDMA of the software Nest, pass solid example, make use of should programming software to wireless network of programming and imitate true analysis, end output result."