IEEE NetSoft 2016

Jinsung Choi


Speaker: Jinsung Choi, CTO & EVP, SKT, Korea

TitleSoftware Defined RAN (SDRAN) Evolution: Challenges and Opportunities


Mobile Traffic has been increased rapidly and the amount of traffic varies according to time, place, and big event. It is difficult for operators to cope with the change of traffic using legacy RAN, because it has the H/W centric structure. This stiff structure leads to high cost when the operators try to reallocate radio resources dynamically. To increase radio resource utilization and reduce TCO, Rearchitecture of RAN(referred to SDRAN) is required. This new architecture is characterized by open H/W, open S/W, user plane-control plane separation, L1 split and business enabling platform(MEC: Mobile Edge Cloud).

SDRAN will have challenges such as mission critical requirement, real time processing, and capacity issues. To exceed those challenges, SK Telecom is trying to develop SDRAN trial system and leading the global ecosystem: OCP, TIP, and ON.Lab


Dr. Alex Jinsung Choi is serving as CTO, Executive Vice President and Head of Corporate R&D Center. Dr. Choi joined SK Telecom in 2012 as Executive Vice President and Head of Technology Strategy Office. He is responsible for building the company’s technology roadmaps and strategies aimed at securing technology leadership in the rapidly-evolving mobile marketplace. In line with the company’s efforts to open a new 5G era, his focus is currently on developing next generation network and future ICT technologies including 5G, NFV/SDN, SDDC, Hadoop, Cloud & Big Data, Quantum Communication, Video Cloud, Media and IoT.

Choi has over 20 years of experience in the mobile telecommunications industry. Before joining SK Telecom, he held various key positions at LG Electronics including EVP & Head of Mobile Communications Business Unit, EVP & Head of Mobile Core Technology Lab and SVP & Head of Next-Generation Telecommunications Lab. Choi is credited with developing the world’s first LTE handset modem chip and launching LG’s first Android smartphone. He has also actively participated in global standardization activities through 3GPP/3GPP2, NGMN, OMA and ITU.

He received his Bachelor’s degree in Control and Instrumentation Engineering from Seoul National University; and Master’s Degree in Computer Engineering and Doctor’s degree in Electrical Engineering from University of Southern California.