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The mobility requirement of the 5G system reaches "500km/h". 5G is a new generation of broadband mobile communication technology with the characteristics of high speed, low latency and large connections. The specific indicators of 5G are: 1. The device density reaches 6 million/km2; 2. The traffic density is above 20Tbs/km2; 3. The mobility reaches 500km/h, achieving a good user experience in the high-speed rail operating environment; 4. The user experience rate is on the order of Gbps, and the transmission rate is increased by 10 to 100 times based on 4G.
The operating environment of this tutorial: Windows 10 system, Dell G3 computer.
The 5th Generation Mobile Communication Technology (5G for short) is a new generation of broadband mobile communication technology with the characteristics of high speed, low latency and large connections. 5G communication facilities are the key to realizing the realization of human, machine and physical objects. Internet network infrastructure.
The International Telecommunications Union (ITU) has defined three major application scenarios for 5G, namely enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (uRLLC) and massive machine type communications (mMTC). Enhanced mobile broadband (eMBB) is mainly aimed at the explosive growth of mobile Internet traffic and provides mobile Internet users with a more extreme application experience; ultra-high reliability and low latency communication (uRLLC) is mainly aimed at industrial control, telemedicine, autonomous driving, etc. and vertical industry application needs with extremely high requirements on reliability; Massive Machine Type Communications (mMTC) is mainly oriented to application needs targeting sensing and data collection such as smart cities, smart homes, and environmental monitoring.
The specific situation of 5G indicators is as follows:
The equipment density reaches 6 million/km2;
Traffic density is above 20Tbs/km2;
Mobility reaches 500km/h, achieving a good user experience in the high-speed rail operating environment;
The user experience rate is on the order of Gbps, and the transmission rate is increased by 10 to 100 times based on 4G;
The end-to-end delay is reduced to 1/10 or 1/5 of 4G. Reaching the millisecond level.
Performance indicators
1. The peak rate needs to reach 10-20Gbit/s to meet the transmission of large amounts of data such as high-definition video and virtual reality .
2. The air interface delay is as low as 1ms, meeting real-time applications such as autonomous driving and telemedicine.
3. It has the device connection capability of one million connections/square kilometers to meet the requirements of IoT communication.
4. Spectrum efficiency is more than 3 times higher than LTE.
5. Under continuous wide area coverage and high mobility, the user experience rate reaches 100Mbit/s.
6. Traffic density reaches more than 10Mbps/m2.
7. Mobility supports high-speed movement of 500km/h.
Key Technologies
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