YateUCN removes the need for an Online Charging System for new LTE operators by providing a minimum Guaranteed Bit Rate (GBR) for all subscribers.
In a typical mobile network, the Online Charging System (OCS) sets a maximum allowed bit rate based on available credit to prevent high demand users from congesting the network. The OCS needs to keep track of all the pre-paid accounts of an operator’s subscribers, making it complicated and expensive.
The YateUCN EPC is the alternative that lets the operators set a minimum GBR on the default bearer. This way, it ensures that the network is usable for everyone, even in congested cells, eliminating the need for the OCS.
How it works
YateUCN, through its MME/PGW nodes, allows operators to set a Guaranteed Bit Rate for the default bearer of an UE, so the bandwidth is divided fairly to the connected subscribers supported by the same eNodeB.
Though unusual, this feature works because the eNodeB does not care which bearer is the default bearer, and the UE follows whatever bandwidth scheduling it is given by the eNodeB.
The Guaranteed Bit Rate is set in the MME/PGW components of the YateUCN EPC server though a JSON API. The bit rate is then implemented by the eNodeb.
The Guaranteed Bit Rate works for local data traffic, but not for data roaming, so it is a great solution for former ISP or cable operators switching to LTE, whose main customers are fixed, non-roaming subscribers.
A few final words
Small LTE operators, former ISP or cable operators or operators switching from WiMAX to LTE, have to deal with a lot of hurdles when installing their network. The Online Charging System is one they can forget about. YateUCN allows operators to lower their CAPEX without making any changes to their OPEX, while ensuring that their subscribers have continuous access to the data network.