In the 2017 MWC (World Mobile Communications Conference), the fifth-generation wireless communication technology referred to as 5G has become an important focus of this conference. Intel and Qualcomm have each demonstrated wireless communication products developed for 5G, even each other. Through the media conversation, the meaning of the competition leader is quite the same. In addition to the hardware level represented by the two giants, the ITU (InternaTIonal TelecommunicaTIon Union, International Telecommunications Union), 3GPP (3rd GeneraTIon Partnership Project) and other standardization agencies are also privately dark. The competition is struggling to create the best 5G universal standard. More and more movements and competitions mean that the days of 5G popularization seem to be getting closer and closer to us.
However, some people may have doubts. In fact, 4G-LTE has already met our needs in daily life. In addition to the problems of network congestion sometimes, whether you are watching Youtube, Netflix, or playing online games, we are already very When there is less bandwidth shortage, and if the global coverage of 4G is about 70%, is it necessary for 5G to start layout so early?
Why do we need a 5G network?Thanks to the explosive growth of smartphones in the past decade, people's demand for bandwidth has kept pace with the times. Streaming music and audio and video have also risen because of the development of wireless networks. In the past, people need carriers to watch audio and video and listen to music. It has also changed because of the growth of wireless networks. In terms of video and audio specifications, people will not be satisfied with the resolution of Full HD, but will want to move to the resolution of 4K or even 8K. People’s demand for wireless networks will only increase. So once 5G becomes more popular, many services and applications that require faster download speeds will quickly become popular.
At present, our imagination and requirements for 5G are nothing more than rapid, low delay and security. At the same time, many big manufacturers and standard alliances are expected to bring better transformation to mobile. Medical, smart city, car networking (smart car), driverless and other technologies that have been developed have become more reliable. After all, you should not expect your self-driving car to grab data from the network, the network delay is too serious. At present, the connection delay of 4G technology in point-to-point is about 50 milliseconds, and it is impossible to achieve immediate control and command. However, the current 5G specification has a point-to-point connection delay of about one millisecond. Under such conditions, the command is transmitted through the network. It is possible to realize, and therefore, in addition to smart phones, the Internet of Vehicles may be the first to benefit from 5G smart devices in addition to traditional mobile devices such as mobile phones, tablets, and laptops.
What is the current state of development of the 5G network?Many studies and reports indicate that 2020 will be a key year for 5G services, because this is the time when many telecom operators around the world hope to release 5G services. In fact, the US telecom giant Verizon has already cooperated with Cisco, Ericsson, Samsung, and Nokia. Cooperation, and plans to start building a 5G network in 2018, hoping to achieve 80% coverage by 2020, in order to achieve a 4G-like commercial target.
At present, there are several alliance competitions for the 5G standard, but basically the technical specifications of 5G specifications have already been set (see the figure below). As mentioned above, even if there are currently ITU, 3GPP and other alliances in the development of 5G standards, each alliance has some differences in the specifications of 5G, but in the end, in order to facilitate the promotion, Takuya believes that the day of 5G unification is now Not far away, there will soon be a common technical standard.
Qualcomm released the Snapdragon X50 in the fourth quarter of 2016. It is the world's first 5G Modem chip. It can be used in smartphones, home wireless networks, cameras, etc., with download speeds of up to 5Gbps. It is expected to be available in the first half of 2018. In 2006, Intel, which sold its mobile chip business, released a universal 5G modem that can support the following 6 GHz and millimeter wave bands at the CES in January, supporting both high and low frequency products.
In the current mainstream planning, the United States is the first to release 5G spectrum plans globally. In July 2016, the US Federal Communications Commission (FCC) announced its resource allocation plan for 5G high-band (see the figure below), while EU RSPG and China IMT The -2020 (5G) promotion group development plan basically grasps the principle of high and low frequency band coordination, medium and low frequency based, and high frequency supplement. At present, it seems that the integration of global spectrum planning is not high, and the use of 5G spectrum is not high. No consensus has been reached, but if the same frequency band is used globally, it will be a big profit for telecom operators in various countries. This means that roaming is easier and lower costs, which is one of the important incentives to accelerate the expansion of 5G services.
At present, Intel's 5G Modem emphasizes global versatility, supports bands below 6GHz (3.3 to 4.2GHz), millimeter wave bands, ultra-wideband operation, and ultra-low latency Gbps-level network throughput to meet critical 5G technical requirements. It includes aggregated bandwidths with expected speeds in excess of 5Gbps and hundreds of MHz, as well as key technologies such as 5G NR.
In addition to being fast, what value does 5G bring?In view of the 5G plan currently seen, when the telecom operators move from 4G to Pre5G, the equipment does not need to cost more to set up the base station. It only needs to upgrade the original base station to continue to use it, just like the original 3G is directly upgraded to LTE. The expansion is easier and the cost can be reduced. With the trend of the Internet of Things and the Internet of Vehicles as the final development trend, wireless technologies including Bluetooth, Wi-Fi and ZigBee are also evolving. Although there are limitations in each other, there is a tendency to gradually merge with each other.
Network equipment maker Ericsson believes 5G will be an “unbelievable opportunity†and the company estimates that 5G will bring in a $1.2 trillion economy in 2026. High-speed and stable wireless communication will bring better content, from voice, live, to the Internet of Vehicles and even the Internet of Things. Many services and applications that were limited by speed and stability in the 4G era will be The 5G era shows more headlines. For the average user, the upgrade of network video and audio will be the first wave of shock. The vision of the Internet of Things, Internet of Things, smart city, etc., which has been considered to be not developing fast enough, is likely to follow 5G. The popularity of speeding up the pace of realization.
Ethernet cables connect devices such as PCs, routers, and switches within a local area network.Most technicians refer to these standards as CAT5 and CAT6, respectively. Also CAT3 available. Because of this, many online stores that sell network cables use this abbreviated language as well.
The connector can by shield or non-shield type, raw cable can be UTP, STP, FTP type. Also the molded shape can be custom mould by straight, right-angle, 105 degree, etc.
These physical cables are limited by length and durability. If a network cable is too long or of poor quality, it won't carry a good network signal. These limits are one reason there are different types of Ethernet cables that are optimized to perform certain tasks in specific situations.
Ethernet Cable Wiring,RJ45 cable,networking cable,8P8C cable
ETOP WIREHARNESS LIMITED , https://www.oemwireharness.com