For network device developers, a little attention to the current state of LTE communication needs to be clear about the future development trend. According to recent forecasts, by 2018, mobile data traffic will increase by 11 times. More than half of the 190 EB data flowing through the wireless network will be transmitted via the LTE network.
In order to popularize faster LTE services on a large scale, wireless service providers must increase their bandwidth and speed by increasing their investment in backhaul and core network infrastructure. This is also expected to be wireless interconnected devices in 2018. The necessary conditions for increasing to more than 10 billion pieces. Extending the LTE network will affect many aspects of wireless network device development, including Ethernet switching, cellular base station high-performance processors, improved backhaul systems, network controllers, and enterprise wireless LAN development.
Cloud computing is very likely to be included in the wireless service provider's network expansion plan. In a 2014 report, Markets & Markets Research predicted that cloud computing spending between 2013 and 2016 would increase by $677 billion. It is understood that the total global IT expenditure in 2013 was as high as 3.7 trillion US dollars. Operators will rely heavily on the cloud to meet market demand. To facilitate this transformation, a series of important and innovative technologies are currently under development.
As a leader in a range of emerging technologies, Network Function Virtualization (NFV) is a server virtualization variant that virtualizes multiple network nodes to provide communication services on a large scale. To increase Ethernet scalability, flexibility, and efficiency, NFV moves network functions from proprietary devices such as routers and switches to general-purpose servers running virtualization technology.
The Evolved Packet Core Network (EPC) and Virtually Evolved Packet Core Network Technology (vEPC) are also important emerging innovations. EPC represents the next generation of evolution of the widely used 3GPP core network architecture. EPC is able to transmit packets over the network faster with Internet Protocol than with circuit switched domains. vEPC technology virtualizes EPC functionality in wireless networks, enabling it to be delivered in the form of cloud services.
In the backhaul network, operators will face considerable challenges in meeting the increasing bandwidth requirements of LTE networks. Operators must ensure that the timeliness and synchronization of the packet network are accurate and intelligently manage traffic. The key to enhancing the backhaul is the so-called Integrated Radio Access Network (CRAN). CRAN technology supports the development of larger base stations that combine multiple remote radio heads and towers into a single processing pool. But to achieve this depends on the integration of higher performance processors.
In addition to the upgrade required for the backhaul, the outbound network capacity must also be extended to transmit Common Public Radio Interface (CPRI) traffic from the radio head to the base station. As an industry standard interface specification for radio heads to base stations, CPRI has achieved a perfect interface and is the primary channel for most RF base station products.
In addition, LTE networks will also use millimeter-wave technology to expand data pipelines. The millimeter wave is a wireless frequency of 60 GHz and above, and the bandwidth and data transmission rate of this frequency can reach 200 times of the MHz frequency. The millimeter wave technology provides a critical connection from the base station to the radio access network and is able to daisy chain multiple base stations together before reaching the radio access network (RAN). The millimeter wave can also transmit general public RF interface traffic directly to the CRAN.
Related developments include 4K QAM for microwave links, leading ways to increase network amplitude modulation, and a wide range of fiber backhaul networks and 10GbE connections between cellular base stations (instead of 1GbE connections), all of which contribute to optimal performance. But it will also depend on the integrated high performance processor.
In order to speed up the network transmission rate, people must also greatly enhance the capabilities of the base station processor, using multiple technologies such as multi-core processors, MIMO technology, base station digital signal processing (DSP) and fabric networks in the base station to provide multiple channels for data packets. To alleviate network congestion.
The combined use of these innovative technologies will increase the speed, capacity and security of LTE networks, enabling operators to deliver robust new device applications, faster connectivity and a better user experience. From the consumer's point of view, LTE network upgrades can enable faster data downloads and uploads, reduce blind spots, and support more continuous data streams, resulting in a significant increase in user experience. In addition, LTE's faster speeds allow application developers to more easily build new experiences in mobile games, online transactions, and mobile social networking. By extending the LTE network, operators can increase customer loyalty, reduce churn and increase revenue.
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