Supun Kularatne

5G

SLTMobitel, a recent addition to Sri Lanka's technological landscape, has begun deploying 5G sites in major urban areas. As part of this project, the access nodes were configured to enable transmission to the designated sites. SLTMobitel initially planned to deploy 20 sites across Sri Lanka.

Key Responsibilities :

• Configuring access nodes according to instructions given by planning department
• Provided technical assistance to staff when needed.
• Adhered to timelines to meet quality assurance targets.
• Determined budget, manpower, schedule and material needed to successfully execute projects.
• Configuring and troubleshooting access nodes( ATN910c,ATN910G,CTN6150)
• Upgrading nodes and conducting PATs to commission 5G. (ANK1EX2S(Huawei 950 series), OIXG2(ZTE CTN6150) supports 10G)

Technology Areas :

Routing: Virtual routing and forwarding (VRF),Inter VLAN Routing, OSPF (Open Shortest Path First),IS-IS(Intermediate System to Intermediate System),BGP(Boarder Gateway Protocol)/ Network Infrastructure: ZTE and Huawei equipment

SLT 2.6 project

SLT has begun deploying LTE sites in the 2600MHz band with the support of Mobitel's network infrastructure. As part of this project, Mobitel is providing a dedicated transmission path that will allow LTE to be commissioned in this new band.

• Collaborated with other departments to facilitate successful project completion.
• Configured interfaces in access nodes to arrange transmission.

Technology Areas :

Routing: Virtual routing and forwarding (VRF), Inter VLAN Routing, OSPF (Open Shortest Path First),IS-IS(Intermediate System to Intermediate System),BGP(Boarder Gateway Protocol)/ Network Infrastructure: ZTE and Huawei equipment

Mobitel Stage VIII:

Mobitel's stage VIII project was a major transformation of its network infrastructure, which resulted in significant improvements in performance, reliability, and coverage. The project involved switching to a fully IP-based network, expanding 4G coverage to rural areas, and implementing new sites. These changes have made Mobitel's network one of the most advanced and reliable in Sri Lanka..

Key Responsibilities :

• Providing router configuration support to convert over 500 2G SDH services in full IP
• Providing router configuration support to configure 700 4G services
• Configuring and adding new microwave links to network via NMS (U31 and U2000)
• Providing technical support to field staff when it required.
• Cultivated positive relationships with vendors to deliver timely and cost-effective supply of services and materials.

Google I/O event:

• Configured access nodes according to transmission plan to facilitate event.

Technology Areas :

Routing: Virtual routing and forwarding (VRF), Inter VLAN Routing, OSPF (Open Shortest Path First),IS-IS(Intermediate System to Intermediate System),BGP(Boarder Gateway Protocol),MPLS(Multi-Protocol Label Switching) Switching : VLAN(Virtual LAN) Layer2 E-LAN and E-LINE

SLT Fiber point expansion project

• SLT Data fiber

Conducted compliance testing of over 200 SLT data fiber services with RFC2544 standards and interconnected them with the Mobitel network. Led and supervised teams to visit sites and coordinate with SLT to acquire services with minimal downtime.

• SLT STM fiber

Conducted G.821 standard compliance testing of over 300 SLT STM fiber services and integrated them into the Mobitel network. Led and supervised teams to visit sites and coordinate with SLT to acquire services with minimal downtime.

Technology Areas :

Virtual Lease Lines (VLL), Virtual Private LAN Services (VPLS), SDH( Synchronous Digital Hierarchy),PDH( plesiochronous digital hierarchy)

4G Launching

Assigned with the task of configuring over 500 layer 2 services in Huawei PTN6900, OSN550, and CTN6200 access nodes and Huawei 620 and ZTE NR8250 microwave IDUs to launch Mobitel's 4G project in Sri Lanka, while maintaining cost-effectiveness by minimizing site visits.

Microwave Link Capacity upgrade

Successfully completed over 60 microwave link capacity upgrades using the Network Management System (NMS) and, when necessary, dispatched teams to the sites to provide guidance on the required changes.

Technology Areas :

• Pseudo wire, MPLS

Entrusted with the leadership of the company's Wireless division, overseeing three teams primarily responsible for executing the Mobitel Stage VII project scope.

• Diagnosed and troubleshot hardware, software and network issues.
• Responded to customer inquiries and provided technical assistance over phone and in person.
• Microwave Link installation and commissioning – Installed and commissioned over 300 microwave links
• Team Management
• Invoicing complete works
• Coordinating with Mobitel to get payments on time.

• Performed Microwave link surveys 40 microwave links in Dialog FTK upgrade project and collaborating with and guiding teams to install surveyed microwave links.

Responsible for maintaining and troubleshooting HCL thin clients and desktop computers in leading companies in Sri Lanka (Sampath bank, Peoples bank, Co-operative bank)

• ·On call duty - Ensured all IT platforms were running smoothly and undertook troubleshooting process over phone or remote connection during out of office hours.