5G網(wǎng)絡(luò)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(wú)線技術(shù)的飛速發(fā)展，

3、第五代(5G)無(wú)線通信系統(tǒng)的概念開(kāi)始出現(xiàn)。但大多數(shù)人對(duì)5G知之甚少,包括5G無(wú)線通信網(wǎng)絡(luò)的某些方面,就像5G是什么:什么是核心5G系統(tǒng)的構(gòu)建塊的概念,主要的挑戰(zhàn)是什么,以及如何解決這些問(wèn)題。此外，一些國(guó)家和組織致力于5G, 5G在中國(guó)的發(fā)展情況是每個(gè)人都關(guān)心的，中國(guó)也需要在這樣的競(jìng)爭(zhēng)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(dòng)通信)是2020年的新一代移動(dòng)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(wú)線覆蓋性能和用戶體驗(yàn)將顯著提高。5G將與其他無(wú)線移動(dòng)通信技術(shù)緊密結(jié)合，構(gòu)成新一代無(wú)處不在的移動(dòng)信息網(wǎng)絡(luò)，滿足未來(lái)10年移動(dòng)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(dòng)通信的發(fā)展歷程，每一代移動(dòng)通信系統(tǒng)都可以用關(guān)鍵技術(shù)的性能指標(biāo)和標(biāo)志來(lái)定義。其中1G采用分頻多址方式，只提供模擬語(yǔ)音服務(wù);2G主要采用時(shí)分多址方式，可以提供語(yǔ)音和低速的數(shù)字?jǐn)?shù)據(jù)服務(wù);3G到碼分多址技術(shù)的特點(diǎn)是用戶峰值速率2Mbps達(dá)到數(shù)十Mbps，支持多媒體數(shù)據(jù)服務(wù);以4G 正交頻分多址技術(shù)為核心，用戶峰值速率高達(dá)100Mbps 1Gbps，可支持多種移動(dòng)寬帶數(shù)據(jù)服務(wù)。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(guān)鍵能力比前幾代移動(dòng)通信豐富，用戶體驗(yàn)、速度、連接密度、端到端延遲、峰值速率和移動(dòng)性等都將是5G關(guān)鍵性能指標(biāo)。然而，不同于以往只強(qiáng)調(diào)不同的峰值率

11、，業(yè)界普遍認(rèn)為用戶體驗(yàn)率是最重要的性能指標(biāo)，它真實(shí)地反映了用戶可用的真實(shí)數(shù)據(jù)率，用戶體驗(yàn)是最接近性能的。根據(jù)主場(chǎng)景5G技術(shù)需求，5G用戶體驗(yàn)率應(yīng)達(dá)到Gbps量級(jí)。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(duì)性能要求差異化程度極高的多樣化場(chǎng)景，5G不能滿足所有場(chǎng)景的要求。此外，當(dāng)前無(wú)線技術(shù)創(chuàng)新有多元化的發(fā)展趨勢(shì)，除了新的多址接入技術(shù)、大規(guī)模天線陣、超密網(wǎng)絡(luò)、全頻譜接入、新型網(wǎng)絡(luò)架構(gòu)，也被認(rèn)為是主要的技術(shù)方向。5G技術(shù)可以在主要技術(shù)場(chǎng)景中發(fā)揮關(guān)鍵作用。92021/7/244.Challenges102021/7/24To work well in a multi service environment with seamless handover technology在多服務(wù)環(huán)境下，以無(wú)縫切換技術(shù)工作Interference s