5G无线通信基础英文论文 A Brief Introduction About 5G Network

A Brief Introduction About 5G Network

Jia

Abstract

With the rapid development of wireless technologies, theconcept of the Fifth Generation (5G) wireless communicationsystem started to emerge. But most people know little about 5G，includingsome aspects of 5G wireless communication networks ,just like what 5G is about: what are the building blocks of core5G system concept, what are the main challenges and how totackle 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.

Keywords:

5G Network,history,Core concept,Challenges, Solutions, In china

- 1 -

Table of Content

1. Introduction................................................................................................................. - 3 - 2. Research and development history ............................................................................. - 3 - 3. Core Concept .............................................................................................................. - 4 - 4. Challenges and Solutions ............................................................................................ - 5 - 4.1 5G Transport Challenge ........................................................................................ - 6 - 4.2 5G Transport Challenge and some Solutions ........................................................ - 7 - 4.3 Machine to Machine Communication ................................................................... - 7 - 4.3 Core Network Virtualisation ................................................................................. - 8 - 4.4 Summary ............................................................................................................... - 8 - 5. 5G In China................................................................................................................. - 9 - 5.5.1 White paper ........................................................................................................ - 9 - 5.5.2 5G standards ...................................................................................................... - 9 - 5.5.3 China communications companies .................................................................... - 9 - 5.5.4 Summary .......................................................................................................... - 10 - 6. Conlusion .................................................................................................................. - 10 - 7. Acronyms .................................................................................................................. - 11 - 8. References................................................................................................................. - 11 -

- 2 -

1.Introduction

5G (Fifth-generation mobile communications) is a new generation of mobile communication mobile communication systems for 2020, with high 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 technology, constitute a new generation of ubiquitous mobile information network, to meetfuture mobile Internet traffic 1000x development needs in 10 years.[1]

In this paper I will show you some latest research and development history,whatare the building blocks of core5G system concept, what are the main challenges and how totackle them firstly. In the rest of paper I will show how 5G developmentin China in recent years and my conclusion after research literature.

2. Research and development history

February 2013, the EU announced that it would grant 50 million euros to accelerate the development of 5G mobile technology, plans to launch a mature standard in 2020. [2][3]

May13,2013,South Korea's Samsung Electronics Co., Ltd. announced that it has successfully developed the 5th generation mobile communication (5G) core technology, which is expected to begin in 2020 to commercialization. The technology can transmit data at ultra-high frequency 28GHz to 1Gbps per second speed, and the maximum transmission distance of up to 2 km. In contrast, the current fourth generation Long Term Evolution (4GLTE) and services of only the transmission rate 75Mbps. Prior to the transmission bottleneck is widely believed that a technical problem, while Samsung Electronics is the use of 64 adaptive array antenna elements transmission technology to crack this problem. Compared with the transmission speed of 4G technologyin South Korea, 5G technology is hundreds of times faster. Using this technique, download a high-definition (HD) movie just need 10 seconds.

Back in 2009, Huawei has launched the early research related technologies, and to show the prototype of the 5G base in later years.In November 6, 2013,Huawei announced that it would invest $600 million in 2018 for the 5G technology development and innovation, and predicted that users will enjoy 20Gbps commercial 5G mobile networksin 2020.

May 8, 2014, the Japanese telecom operator NTT DoCoMo announced officially, Ericsson ,Nokia, Samsung and other six manufacturers to work together, began testing override 1000 times than existing 4G networks the carrying capacity of the high-speed network 5G network, the transmission speed is expected to 10Gbps. Outdoor testing scheduled to commence in 2015, and expects to begin operations in 2020.[3]

- 3 -

March 1, 2015, the British \Daily Mail\reported that the British 5G network has successfully developed and tested for data transmission within 100 meters per second data transfer of up to 125GB, is 6.5 times the 4G network, in theory, a 30 seconds to download movies, adding that investment in public test in 2018, 2020 officially put into commercial use.[4]

February 11, 2015 in the afternoon news, IMT-2020 (5G) to promote the group (hereinafter referred to as \white paper. White Paper from the mobile Internet and networking composed mainly of application scenarios, business needs and challenges of starting summed continuous wide area coverage, high reliability of the four major technology 5G scene of high capacity, low power consumption and low latency connection. Meanwhile, the combination of core technologies and key capabilities 5G and 5G concept proposed by the \sexuality index + a set of key technologies\

March 3,2015,theEuropeanEconomic and Social Commission for DigitalFurusawaOttinge officially announced the EU's vision of public-private partnerships 5G, and strive to ensure that the right to speak in the next generation of mobile technology in Europe in the global standard.Ottinger said that, 5G vision of public-private partnership involves not only fiber, wireless or satellite communications network integrated with each other, will also use the software-defined networking (SDN), network functions virtualization (NFV), Mobile Edge computing (MEC) and Fog Computing technology. In the spectrum, the EU's vision of public-private partnership will be designated 5G hundreds of megahertz to improve network performance, 60 GHz and higher frequency bands will also be taken into account.

A number of countries and organizations announced,5G network will be operational between 2020 ~ 2025.

3.Core Concept

What is 5G? I believe many people will be so questionable when see 5G. Judging from the word meaning, 5G refers to the fifth generation of mobile communications. However, how should it define? Currently, the global industry for 5G concept not yet agreed. China IMT-2020 (5G) group released the White Paper considers the concept 5G, 5G integrated key capabilities and core technology, 5G concept by \key technologies%user experience\is a set of key technologies, including large-scale antenna array, ultra-dense networking, new multi-site, full-spectrum access and new network architectures.

Recalling the course of development of mobile communications, each generation of

- 4 -

mobile communication systems can be defined by sexual 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 services; 3G to CDMA technology is characterized by user peak rate of 2Mbps to reach tens of Mbps, support multimedia data services; 4G OFDMAtechnology as the core, the user peak rate of up to 100Mbps ~ 1Gbps, can support a variety of mobile broadband data services.

5G key competencies richer than previous generations of mobile communications, user experience, speed, 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 indicators, 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 Gbpsmagnitude.

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 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.[5]

The new network architecture New multi-access technology

Gbps user exerperience rate

Large-scale antenna array Ultra-dense network

the new network architecture

Figure 1 - 5G Concept

4.Challenges and Solutions

In this part I outline some observed research challengesand directions in the mobile network development and show some may become the future trends and solutions that may lead to improved network performance while meeting the constantly increasing user demands.

- 5 -

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说综合文库5G无线通信基础英文论文 A Brief Introduction About 5G Network在线全文阅读。