Extended LTE network

Extended LTE network

For Network developers, you only need to pay a little attention to the current situation of 4G/LTE communication needs, and you will be able to understand the future development trend. According to recent forecasts, mobile data traffic will increase by 11 times by 2018. More than half of the 190 EB data flowing through the wireless network will be transmitted through the 4G/LTE network.

In order to popularize a more rapid 4G/LTE service in a large scale, wireless service providers must increase investment in the return and core network infrastructure to achieve greater bandwidth and faster speed, this is also necessary to increase the number of wireless devices to more than 2018 in 10 billion. Expansion of the 4G/LTE network will affect wireless network development in multiple aspects, including network Ethernet Switching, high-performance cell base station processor, improved return system, network controller, and enterprise wireless LAN development.

 

Cloud computing is likely to be included in the network expansion plan of wireless service providers. In a report in 2014, Markets & Markets Research predicts that cloud computing spending between 2013 and 2016 will increase by $677 billion. IT is understood that the total IT spending in 2013 was as high as $3.7 trillion. Carriers will rely heavily on cloud-level networks to meet market needs. To promote this transformation, a series of important and innovative technologies are currently under development.

As a leader in a series of emerging technologies, Network Function Virtualization (NFV) is a virtual variant of multiple Network nodes to provide large-scale communication services. To improve the scalability, flexibility, and efficiency of the Ethernet network, NFV transfers network functions from dedicated devices (such as routers and switches) to general-purpose servers running virtualization technology.

Evolution of the Group Core network (Evolved Packet Core, EPC) and virtual evolution of the Group Core network technology (vEPC) is also an important new technology. EPC represents the next generation Evolution of the widely used 3GPP core network architecture. EPC can use Internet protocols to transmit data packets over the network faster, rather than using Circuit Switching domains. VEPC technology virtualizes the EPC function in wireless networks, allowing them to deliver more in the form of cloud services.

In the return network, transmission providers will face considerable challenges in meeting the increasing 4G/LTE network bandwidth requirements. The provider must ensure that the timeliness and synchronization of the data packet network are accurate and perform intelligent traffic management. The key to enhancing the return request is generally referred to as the integrated wireless Access Network (CRAN ). CRAN technology supports the development of larger base stations, which combines multiple remote RF headers and towers into a single processing pool. However, to achieve this, it depends on the integration of higher-performance processors.

In addition to the upgrade of the return request, the capacity of the outbound network must also be expanded to transmit traffic from the RF header to the Common Public RF Interface (CPRI) of the base station. As the industry standard interface specification for RF head to base station, CPRI has made this specification a perfect interface and is the main channel for most RF base station products.

In addition, the upcoming 4G/LTE network will also use millimeter wave technology to expand the data pipeline. Millimeter Wave (MM) is a wireless frequency of 60 GHz and above. The bandwidth and data speed of this frequency can reach 200 times of the MHz frequency. Millimeter Wave technology provides key links from the base station to the wireless Access Network, and can link multiple base stations together before arriving at the Wireless Access Network (RAN. Millimeter waves can also directly transmit traffic from common public RF interfaces to CRAN.

Related Development includes 4 k qam for microwave links, advanced methods for improving network amplitude modulation, and connections of 10GbE between fiber-optic return networks and cellular base stations (replacing 1GbE connections ), all of these help achieve optimal performance, but will also depend on the integrated high-performance processor.

To speed up the network, we must also greatly improve the base station's processor capabilities. Using the multi-core processor, MIMO technology, base station digital signal processing (DSP), Fabric Network and other innovative technologies in the base station, provides multiple channels for data packets to ease network congestion.

 

Using the above network innovative technologies will increase the speed, capacity, and security of 4G/LTE Networks, this allows operators to provide robust new device applications, faster connectivity, and better overall user experience. From the consumer's point of view, 4G/LTE is expected to greatly improve user experience through faster download and upload, fewer dumb points, and more continuous data streams. In addition, the faster speed of LTE allows application developers to build better mobile games, banking services, social networking, shopping, and other new experiences. By expanding the 4G/LTE network, service providers can increase customer loyalty, reduce user loss, and increase revenue.