5G网络英文介绍

1、5G Network,With 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 buildi

2、ng 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.,随着无线技术的飞速发展

3、，第五代(5G)无线通信系统的概念开始出现。但大多数人对5G知之甚少,包括5G无线通信网络的某些方面,就像5G是什么:什么是核心5G系统的构建块的概念,主要的挑战是什么,以及如何解决这些问题。此外，一些国家和组织致力于5G, 5G在中国的发展情况是每个人都关心的，中国也需要在这样的竞争环境中有自己的位置。,1.Introduction,5G (Fifth-generation mobile communications) is a new generation of mobile communication systems for 2020, with high spectral effici

4、ency 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 technology, constitute

5、a new generation of ubiquitous mobile information network, to meet future mobile Internet traffic 1000 x development needs in 10 years. 5G(第五代移动通信)是2020年的新一代移动通信系统，频谱效率高，功耗低，在传输速率和资源利用率方面比4G系统提高10倍，其无线覆盖性能和用户体验将显著提高。5G将与其他无线移动通信技术紧密结合，构成新一代无处不在的移动信息网络，满足未来10年移动互联网流量1000 x的发展需求。,2.Development,Recalli

6、ng 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 voice and low-speed digital data servic

7、es; 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. 回顾移动通信的发展历程，每一代移动通信系统都可以用关键技术的性能指标和标志来定义

8、。其中1G采用分频多址方式，只提供模拟语音服务;2G主要采用时分多址方式，可以提供语音和低速的数字数据服务;3G到码分多址技术的特点是用户峰值速率2Mbps达到数十Mbps，支持多媒体数据服务;以4G 正交频分多址技术为核心，用户峰值速率高达100Mbps 1Gbps，可支持多种移动宽带数据服务。,5G key competencies richer than previous generations of mobile communications, user experience, speed, density of connections, end to end delay, the p

9、eak 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 indicators, it truly reflects the real data rate a

10、vailable 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关键能力比前几代移动通信丰富，用户体验、速度、连接密度、端到端延迟、峰值速率和移动性等都将是5G关键性能指标。然而，不同于以往只强调不同的峰值率，业界普遍认为用户体验率是最重要的性能指标，它真实地反映了用户可用的真实数据率，用户体验是最接

11、近性能的。根据主场景5G技术需求，5G用户体验率应达到Gbps量级。,3.Technology,Faced with diverse scenes of extreme performance demands differentiation, 5G cannot have solutions for all scenarios. In addition, the current wireless technology innovation has diversified development trend, in addition to the new multi-access technol

12、ogy, 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. 面对性能要求差异化程度极高的多样化场景，5G不能满足所有场景的要求。此外，当前无线技术创新有多元化的发展趋势，除了新的多址接入技术、大规模天线阵、超密网络、全频谱接入、新型网络架构，也被认为是主要的技术方向。5G技术可以在主要技术场景中发挥关键作用。,4.Challenges,To work well in a multi service environment with seamless handover technology 在多服务环境下，以无缝切换技术工作 Inte