ISSUE 05 2014
FUTURE NETWORKS
35
SK Telecom has recently completed developing proof-of- concept cases for both SDN and NFV in partnership with global vendors. By working on Dynamic Service Chaining technology and Carrier-Grade SDN Controllers, we’ve proven that the two technologies are powerful and stable enough to be applied to commercial mobile networks. We’ve also verified performance, stability, and a variety of functionalities in virtualised Evolved Packet Core (EPC) and IP Multimedia Subsystem (IMS) environments for NFV.
Once implemented, SDN and NFV will allow us to offer customers many things: multiplayer games and real-time document sharing and editing, for example, or customised advertisement and broadcasting services for specific areas as defined by nearby intelligent base stations. Moreover, intelligent base stations will allow us to provide customers with higher quality services by managing resources more efficiently. They will be able to distinguish different types of service more accurately even within the same QCI, then process that information to allocate radio resources to services that are designated as higher priority. Going forward, intelligent base stations will play a pivotal role in the evolution to a context- aware network that offers features customised for each user based on an analysis of each user’s service usage patterns and other information. LTE
Legacy Network
“Vendor-specific hardware, low scalability, simple policy-based operation”
By applying advanced information technology to base stations, operators can transform fixed, closed, vendor-specific networks into flexible, service-agile, open and virtualised networks
Software-Based Mobile Network
“Virtualised, service-oriented and flexible network”
PCRF DU Pool (A-SCAN) RU #1
#1 #2
RU #2 #N RU #2 EPC DPI
Video Opt.
CDN RU #1 Internet
Analytics Platform
S/W DU #1
DU #2 DU #N
Orchestrator SDN/Cloud Controller
S/W
EPC IMS
Video Opt. TCO Accel.
Analytics-based Control
DPI CDN Web Opt.
GPP, Standard H/W Virtualised/Cloudified
RU #N Access Network Core Network RU #N Internet
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