Software-defined mobile networks
A mobile network is considered software-defined if the protocols and functions in the radio access network and the core network are implemented in software, and the hardware and software used in both the radio access network and the core are generic (for example an Intel chipsets and Nuand transceivers).
The YateUCNTM and YateHSS/HLR are Linux applications running on commodity servers, implementing the functions of 2.5G GSM/GPRS and 4G LTE core networks entirely in software.
The practical effects of software-defined mobile networking are:
Flexibility
Generic software brings flexibility in managing the network functions and its capacity remotely. Software allows upgrades and changes that could otherwise be achieved by replacing or reprogramming the hardware.
The subscriber capacity of YateUCN can be increased with up to 50%, all with a software change. Because no FPGA, switchboards, or separate modules are needed to perform each function, the equipment size is reduced and requires less power. The new space requirements for both the RAN and the data center allow operators to deploy new networks more lightweight networks, more densely, and closer to the user.
Affordability
The software-defined approach leads to major costs reductions for equipment. Replacing hardware modules and functions with software and general-purpose hardware makes the equipment lighter, reshapes power supply requirements, and reduces CAPEX and OPEX.
Efficient management
YateUCN and YateHSS are based on a generic operating system such as Linux, and enable operators to autonomously manage their network, improve the overall planning and operation of their deployments.
Unlike typical special-purpose equipment, the commodity hardware and the non-proprietary software in the YateUCN decreases the need for vendor-specific support and training; when using YateUCN minimal external support is needed for installation, management, and servicing.
YateUCN
YateUCN, the unified core network, is a Linux application running on commodity servers. It implements the functions of both GSM/GPRS and LTE core networks and can be used to build new, mixed 2G/4G networks, or can be integrated in existing deployments. The YateUCNTM was also developed on Yate and it replaces all hardware routers and transcoders with software.