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标题: 5G 简介【转载】 [查看完整版帖子] [打印本页]

时间: 2016-7-7 05:31

作者: prettywraith 标题: 5G 简介【转载】

本帖最后由 prettywraith 于 2016-7-7 05:32 编辑

5G (5th generation mobile networks or 5th generation wireless systems) denotes the proposed next major phase of mobile telecommunications standards beyond the current 4G/IMT-Advanced standards. 5G planning includes Internet connection speeds faster than current 4G, and other improvements.

The Next Generation Mobile Networks Alliance defines the following requirements for 5G networks:

Data rates of tens of megabits per second for tens of thousands of users
1 gigabit per second simultaneously to many workers on the same office floor
Several hundreds of thousands of simultaneous connections for massive wireless ****** network
Spectral efficiency significantly enhanced compared to 4G
Coverage improved
Signalling efficiency enhanced
Latency reduced significantly compared to LTE.

The Next Generation Mobile Networks Alliance feels that 5G should be rolled out by 2020 to meet business and consumer demands. In addition to providing simply faster speeds, they predict that 5G networks also will need to meet new use cases, such as the Internet of Things (network equipment in buildings or vehicles for web access) as well as broadcast-like services and lifeline communication in times of natural disaster.

Although updated standards that define capabilities beyond those defined in the current 4G standards are under consideration, those new capabilities have been grouped under the current ITU-T 4G standards.

Most telecom vendors expect 5G to offer the following performances:

Data rates up to 10 Gbit/s over the air.
Latency in the order of 1ms
Enable Internet of Things (IoT) devices to run on battery for up to ten years.

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