Centre for Development of Telematics

C-DOT 5G Enterprise solution consists of Core Network and RAN. C-DOT O-RAN compliant 5G RAN (gNodeB) is an indigenous solution to provide 5G services to the customers including secured high speed data services with low latency. O-RAN compliant 5G RAN mainly consists of O-CU, O-DU and O-RU modules which are developed in C-DOT. Management and configuration of these modules are done by local Element Management System (EMS).
O-CU/O-DU software stack which is 3GPP compliant supports TDD and FDD mode and upto 100MHz bandwidth. It also supports major features like up to 128 RRC connected users, MIMO, O-RAN Fronthaul interface, etc. These modules are successfully integrated with in-house developed C-DOT O-RU module as well as third party radio modules like VVDN and tested the gNodeB functionalities. O-RU is designed and developed indigenously in C-DOT. O-RU is designed to operate in N78 Band (TDD). It supports configurable bandwidths from 10MHz to 100MHz which is not a common feature in O-RUs available in the market. It supports 4T4R MIMO configuration and it can be upgradable to 8T8R. This O-RU is integrated with in-house developed O-CU/O-DU modules and third party O-CU/O-DU modules available in the market.
These O-RAN compliant (O-CU, O-DU and O-RU) modules are integrated and standalone gNodeB functionalities are evaluated with test instruments. The above O-RAN compliant gNodeB is integrated with C-DOT 5G core network as well as third party core network modules. Presently this 5G network solution is deployed in the C-DOT campus and performance testing of the end -to-end solution is going on. Applications like Throughput, Video Streaming, VoNR calls, ViNR calls, Range, etc., have been tested successfully using Commercial UEs.