話(huà)說(shuō)，從3G和4G開(kāi)始，我們對(duì)這種起名方法就已經(jīng)不陌生了。不過(guò)，大家都知道這個(gè)G到底是什么意思嗎?3G、4G、5G又分別是什么呢?今天就讓小編來(lái)科普一下這個(gè)吧~

首先，這個(gè) G 代表的是Generation(一代)5G 的全稱(chēng)是 5th generation mobile networks，也就是“第五代移動(dòng)網(wǎng)絡(luò)”。然后，5G 和 4G 相比，除了速度更快以外，它還能容納更大的用戶(hù)密度(user density)換句話(huà)說(shuō)，扎堆上網(wǎng)拖網(wǎng)速的現(xiàn)象會(huì)減輕很多。而且它支持一種叫“設(shè)備到設(shè)備通訊”的技術(shù)：Device-to-Device Communication(D2D)3G、4G網(wǎng)絡(luò)里，所有的設(shè)備之間，如果要傳遞信號(hào)，這些信號(hào)都需要經(jīng)過(guò)中轉(zhuǎn)站。而 5G 里面則可以通過(guò)這種 D2D 技術(shù)直接傳，這也是它的速度得以進(jìn)一步提升的原因之一。

參考范文：

5G的詳細(xì)介紹及前景展望

目錄

1 2

The development of mobile communication technology What is 5G? Why do we need 5G?

34

Research status and challenges of 5G.

1

The development of mobile communication technology

The development of mobile communication technology

Digital mobile communication system Broadband access and distribution network system

1G

Simulation of mobile communication system

3G

multimedia mobile communications system

2

What is 5G?

01 An English abbreviation

5G is the English abbreviation of “The fifth generation mobile communication technology”

An English abbreviation

converged

02 UNE

Compared with 2G, 3G and 4G, 5G is not independent and brand-new. It is a combination and further development of present mobile communication technology.

03 A green energy network

network

Besides the speed upgrade, 5G will also meet the requirements of large bandwidth, super high capacity, super dense site, super high reliability and whenever and wherever possible access.

A green energy network

Some details about 5G

3

Why do we need 5G?

Mobile communication has profoundly changed people's life, but people's pursuit for higher performance of mobile communication has never stopped.

In order to cope with the future of mobile data traffic explosive growth, the connection of massive device, the continuous emergence of various new services and applications scene, the fifth generation mobile communication (5G) system will emerge as times require.

The necessity of 5G

Why does the vision of 5G emerge?

5G will make information break through the limitation of time and space, providing excellent interactive experience and immersive information feast for the user. Through the seamless fusion way, 5G will close the distance of all things, realize the intelligent interconnection between man and all things on earth.

5G will provide the access rate of fiber like, the using experience of “zero delay”, the ability to connect billions of devices, super high flux density, super high connection number density , super high mobility and other multi scene favorable service and intelligent optimization of business and user perception. At the same time, 5G will bring the network over a hundred times the energy efficiency and ultra hundred times the bit cost reduction. Finally 5G will realize the general hope of “Get the information whenever you want and all things on earth are at your fingertips”.

4

Research status and challenges of 5G.

To meet the demand of 5G, breakthrough in air interface technology is necessary. But innovation in network architecture is also significant and necessary so as to realize the vision of 5G.

Centralized or distributed network architecture The dividing line of access network and the core network

To realize network construction or function configuration

Part1 Five opening problem on designing 5G network architecture

The influence of NFV and SDN

IMT-2020 (5G) architecture is evolution or revolution

Part 02 Integration of 5G and Wi-Fi

An general introduction of Integration of 5G and Wi-Fi

The integration network of 5G and Wi-Fi can well solve the problem of rapid growing wireless traffic and user experience pursuit in 5G. Integration of multi-radio access technology, multiple needs and multiple internet were studied to become the inevitable trend for IMT 2020 (5G).

In the networking of 5G and Wi-Fi, integration of network application scene and fusion networking technology were introduced to be the inevitable demand, nosense authentication, network security, green communication were proposed to become the key technical indications.

Integration of

networking

technology route

Integrate Wi-Fi into mobile communication network as a wireless technology under the circumstance of integration of a variety of cellular network. To realize the multiple access mode of core network with other cellular technology

no-sense authentication, network security, green communication were proposed to become the key technical indications.

key technical indications

Some challenges

To work well in a multi service environment with seamless handover technology ? Interference suppression technology ? Automatic adaptation technology ? Security problems. Seamless docking of secure protocol when integrating 5G and Wi-Fi.

Part 03 Security vision of 5G

The security key technologies

1 2 3

Large data security in 5G

Security problems brought by cloudization, virtualization and Software Defined Network, SDN

The security of mobile intelligent terminal

Researchers

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