5G網(wǎng)絡英文介紹PPT課件

1、12021/7/24With the rapid development of wireless technologies, the concept of the Fifth Generation (5G) wireless communication system started to emerge. But most people know little about 5G，including some aspects of 5G wireless communication networks ,just like what 5G is about: what are the buildin

2、g blocks of core 5G system concept, what are the main challenges and how to tackle them. Besides, A number of countries and organizations working on 5G, 5G development situation in China is of concern to everyone, China also needs to have its own place in such a competitive environment. 隨著無線技術的飛速發(fā)展，

3、第五代(5G)無線通信系統(tǒng)的概念開始出現(xiàn)。但大多數(shù)人對5G知之甚少,包括5G無線通信網(wǎng)絡的某些方面,就像5G是什么:什么是核心5G系統(tǒng)的構建塊的概念,主要的挑戰(zhàn)是什么,以及如何解決這些問題。此外，一些國家和組織致力于5G, 5G在中國的發(fā)展情況是每個人都關心的，中國也需要在這樣的競爭環(huán)境中有自己的位置。22021/7/241.Introduction32021/7/24 5G (Fifth-generation mobile communications) is a new generation of mobile communication systems for 2020, with hi

4、gh spectral efficiency and low power consumption, in terms of transfer rate and resource utilization improvement over 4G system 10 times, its wireless coverage performance and user experience will be significantly improved. 5G will be closely integrated with other wireless mobile communication techn

5、ology, constitute a new generation of ubiquitous mobile information network, to meet future mobile Internet traffic 1000 x development needs in 10 years. 5G(第五代移動通信)是2020年的新一代移動通信系統(tǒng)，頻譜效率高，功耗低，在傳輸速率和資源利用率方面比4G系統(tǒng)提高10倍，其無線覆蓋性能和用戶體驗將顯著提高。5G將與其他無線移動通信技術緊密結合，構成新一代無處不在的移動信息網(wǎng)絡，滿足未來10年移動互聯(lián)網(wǎng)流量1000 x的發(fā)展需求。4202

6、1/7/242.Development52021/7/24 Recalling the course of development of mobile communications, each generation of mobile communication systems can be defined by performance indicators and signs of key technologies. Wherein, 1G using FDMA, only analog voice services; 2G mainly using TDMA, can provide vo

7、ice and low-speed digital data services; 3G to CDMA technology is characterized by user peak rate of 2Mbps to reach tens of Mbps, support multimedia data services; 4G OFDMA technology as the core, the user peak rate of up to 100Mbps 1Gbps, can support a variety of mobile broadband data services. 回顧移

8、動通信的發(fā)展歷程，每一代移動通信系統(tǒng)都可以用關鍵技術的性能指標和標志來定義。其中1G采用分頻多址方式，只提供模擬語音服務;2G主要采用時分多址方式，可以提供語音和低速的數(shù)字數(shù)據(jù)服務;3G到碼分多址技術的特點是用戶峰值速率2Mbps達到數(shù)十Mbps，支持多媒體數(shù)據(jù)服務;以4G 正交頻分多址技術為核心，用戶峰值速率高達100Mbps 1Gbps，可支持多種移動寬帶數(shù)據(jù)服務。62021/7/24 5G key competencies richer than previous generations of mobile communications, user experience, speed,

9、density of connections, end to end delay, the peak rate and mobility and so will be the 5G key performance indicators. However, unlike the case in the past only to emphasize different peak rate, the industry generally believe that the rate of the user experience is the most important performance ind

10、icators, it truly reflects the real data rate available to the user, and the user experience is the closest performance. Based on the technology needs of the main scene 5G, 5G user experience rate should reach Gbps magnitude. 5G關鍵能力比前幾代移動通信豐富，用戶體驗、速度、連接密度、端到端延遲、峰值速率和移動性等都將是5G關鍵性能指標。然而，不同于以往只強調(diào)不同的峰值率

11、，業(yè)界普遍認為用戶體驗率是最重要的性能指標，它真實地反映了用戶可用的真實數(shù)據(jù)率，用戶體驗是最接近性能的。根據(jù)主場景5G技術需求，5G用戶體驗率應達到Gbps量級。72021/7/243.Technology82021/7/24 Faced with diverse scenes of extreme performance demands differentiation, 5G cannot have solutions for all scenarios. In addition, the current wireless technology innovation has diversif

12、ied development trend, in addition to the new multi-access technology, large-scale antenna array, ultra-dense network, the whole spectrum access, the new network architecture, also is considered to be the main technical direction.5G can play a key role in the major technology scene. 面對性能要求差異化程度極高的多樣化場景，5G不能滿足所有場景的要求。此外，當前無線技術創(chuàng)新有多元化的發(fā)展趨勢，除了新的多址接入技術、大規(guī)模天線陣、超密網(wǎng)絡、全頻譜接入、新型網(wǎng)絡架構，也被認為是主要的技術方向。5G技術可以在主要技術場景中發(fā)揮關鍵作用。92021/7/244.Challenges102021/7/24To work well in a multi service environment with seamless handover technology在多服務環(huán)境下，以無縫切換技術工作Interference s