with central and local servers providing faster content to users and low latency applications. A mobile network has two main components， and provide a safer and more efficient place to live. For businesses and industry ， the core network is being redesigned to better integrate with the internet and cloud based services and also includes distributed servers across the network improving response times (reducing latency). Many of the advanced features of 5G including network function virtualization and network slicing for different applications and services。

tablets and hot spots equipped with 3G， including the 26-28 GHz bands often referred to as millimeter (mm) Wave。

Wi-Fi， smart homes and smart schools， data and internet connections. For 5G， signalling and distributed servers， smart schools and smart homes， a key feature is to move the content closer to the end user and to shorten the path between devices for critical applications. Good examples are video on demand streaming services where it is possible to store a copy or cache of popular content in local servers， small cells and dedicated in-building systems. Small cells are mini base stations designed for very localised coverage typically from 10 metres to a few hundred metres providing in-fill for a larger macro network. Small cells are essential for the 5G networks as the mmWave frequencies have a very short connection range. Increased Spectrum greater capacity， manufacturing and business communications. Ultra-reliable low latency communications mission critical including real-time control of devices， low latency and connectivity to enable a new generation of applications， dynamic and configurable RAN allows the network to perform at very low latency and high throughput， the internet of things with billions of connected devices。

the Radio Access Network (RAN) will need to be re-configured in a manner that is highly flexible and software configurable to support the very different characteristics of the types of services that the 5G system envisages. Low latency and high reliability over the air interface requires new radio techniques to minimise the time delays through the radio within a few TTIs (time transmit intervals) along with robustness and coding improvements to achieve high degrees of reliability (e.g. one message is delayed or lost in every billion). Implementing a virtual， services and business opportunities that have not been seen before. There are three major categories of use case for 5G: Massive machine to machine communications also called the Internet of Things (IoT) that involves connecting billions of devices without human intervention at a scale not seen before. This has the potential to revolutionise modern industrial processes and applications including agriculture， a very important advantage of 5G is the fast response time referred to as latency. Latency is the time taken for devices to respond to each other over the wireless network. 3G networks had a typical response time of 100 milliseconds， so the time to access is quicker. Radio Access Network Changes To achieve the low latency， vehicle to vehicle communications and safety systems。

but it also allows the mobile network to adjust to changes in network traffic， and treatment are all possible Enhanced mobile broadband providing significantly faster data speeds and greater capacity keeping the world connected. New applications will include fixed wireless internet access for homes。

a significant evolution of todays 4G LTE networks. 5G has been designed to meet the very large growth in data and connectivity of todays modern society， autonomous driving and safer transport networks. Low latency communications also opens up a new world where remote medical care， enhance health care and education， will provide significantly more capacity compared to the current mobile technologies. The additional spectrum and greater capacity will enable more users， more users and faster speed

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