Home | Reports | Technical Documents | Tech-Blog | One-Shot Gallery | Korea ICT News | Korea Communication Market Data | List of Contributors | Become a Contributor |    
Section 5G 4G LTE C-RAN/Fronthaul Gigabit Internet IPTV/Video Streaming IoT SDN/NFV Wi-Fi KT SK Telecom LG U+ Network Protocol Samsung   Korean Vendors
Real World Private 5G Cases   4 Deployment Models On-Premise Cases 5G Core Control Plane Sharing Cases

5G Core Sharing Cases

Private 5G Deployment   • Private 5G Frequency Allocation Status in Korea  South Korean government's regulations on private 5G and KT's strategy for entering the market
Cases in Korea   Private 5G Operators |   SK Networks Service (SI) Sejong Telecom (Wire-line Carrier) KT MOS (Affiliate of KT) • Newgens (SI) • NAVER Cloud more >>  
    Enterprise DIY |   Korea Hydro & Nuclear Power (Power Plant) Korea Electric Power Corporation (Energy) • Republic of Korea Navy more >>
CHANNELS     HFR Private 5G Solution (my5G)       my5G Solution Components       my5G Key Features        my5G Resources        my5G News          
KT IPTV (olleh GiGA UHD tv) Service (3): 4-channel View
June 06, 2015 | By Dr. Harrison J. Son (tech@netmanias.com)
Online viewer:
Comments (0)

KT IPTV (4K UHD) Service

(1) UHD Live TV

(2) 'Most Popular Channels Now' (9-Channel View)

(3) 4-channel View

(4) UHD VoD


KT also offers 4-channel view service. This service is pretty similar to LG U+'s and has the following two options:

  1. Operator-selected channels: Offers a set of 4 channels selected by operator (sports, shopping, over-the-air and movies).
  2. User-selected channels (launched in March 2015): Allows users to select 4 channels, and watch them in a customized 4-split view.



Figure 1. 4-channel view (operator-selected 4 sports channels)


In a recent test we conducted by using KT Giga Internet, Samsung's UHD TV and Kaonmedia's UHD STB , we found all 4 multicast streams are transmitted to STB in both cases - whether operator-selected or user-selected (see the screen shot of the traffic in Figure 2).


We also confirmed that both options allow for re-arrangement of the channels in the screen. So, a user can move channels around, for example, from the main window (seen in the left side of the figure below) to one of the 3 sub-windows (seen in the right side of the figure below), or the other way around.  


Table 1. Codec and streaming information measured in 4-channel view (of operator-selected 4 sports channels)

      Resolution Codec   Encoding rate Streaming rate Network BW   QoS
   Main window SPOTV 1920x1080 (Full HD) H.264 4:2:0   10.9 Mbps 11.2 Mbps CBR 0x80
   Sub window 1 SBS Sports 720x480 (SD) H.264 4:2:0 2.5Mbps 3.5 Mbps 3.6 Mbps CBR 0x80
   Sub window  2 KBS N Sports 720x480 (SD) H.264 4:2:0 2.5Mbps 3.5 Mbps 3.6 Mbps CBR 0x80
   Sub window  3 MBC Sports+ 720x480 (SD) H.264 4:2:0 2.5Mbps 3.5 Mbps 3.6 Mbps CBR 0x80

For 4-channel view, network bandwidth of 22Mbps (=11.2+3.6+3.6+3.6) is required.



Figure 2. Screen shot of traffic in 4-channel view (of operator-selected 4 sports channels)


The user-selected 4-channel view also had the same results as seen in Figure 2. KT's 4-channel view (operator or user-selected) allows all 4 channels to be independently transmitted in individual multicast streams. As a result, channels can be switched between the main and sub-windows, which makes KT's service different from others'.  


In summary, KT's 4-channel view service features 3 SD sub-windows (of 3.6 Mbps each, in 720x480) and one Full HD main window (of about 11Mbps, in 1920x1080). Viewing all 4 channels in UHD (3840x2160) is not technically possible, yet.


I personally was very satisfied with the quality of the service (both operator and user-selected options). Especially, watching 4 different news channels all at once with a peace of mind that I am not missing any news was a great experience.


What I liked about the service most was that I could watch just what I wanted without having to watch all the annoying advertisements. Apparently, this kind of service will change the way people watch TV from now on.



Thank you for visiting Netmanias! Please leave your comment if you have a question or suggestion.

[HFR Private 5G: my5G]


Details >>







Subscribe FREE >>

Currently, 55,000+ subscribed to Netmanias.

  • You can get Netmanias Newsletter

  • You can view all netmanias' contents

  • You can download all netmanias'

    contents in pdf file







View All (854)
4.5G (1) 5G (101) AI (7) AR (1) ARP (3) AT&T (1) Akamai (1) Authentication (5) BSS (1) Big Data (2) Billing (1) Blockchain (3) C-RAN/Fronthaul (18) CDN (4) CPRI (4) Carrier Ethernet (3) Charging (1) China (1) China Mobile (2) Cisco (1) Cloud (5) CoMP (6) Connected Car (4) DHCP (5) EDGE (1) Edge Computing (1) Ericsson (2) FTTH (6) GSLB (1) GiGAtopia (2) Gigabit Internet (19) Google (7) Google Global Cache (3) HLS (5) HSDPA (2) HTTP Adaptive Streaming (5) Handover (1) Huawei (1) IEEE 802.1 (1) IP Routing (7) IPTV (21) IoST (3) IoT (56) KT (43) Korea (20) Korea ICT Market (1) Korea ICT Service (13) Korea ICT Vendor (1) LG U+ (18) LSC (1) LTE (78) LTE-A (16) LTE-B (1) LTE-H (2) LTE-M (3) LTE-U (4) LoRa (7) MEC (4) MPLS (2) MPTCP (3) MWC 2015 (8) NB-IoT (6) Netflix (2) Network Protocol (21) Network Slice (1) Network Slicing (4) New Radio (9) Nokia (1) OSPF (2) OTT (3) PCRF (1) Platform (2) Private 5G (10) QoS (3) RCS (4) Roaming (1) SD-WAN (17) SDN/NFV (71) SIM (1) SK Broadband (2) SK Telecom (35) Samsung (5) Security (16) Self-Driving (1) Small Cell (2) Spectrum Sharing (2) Switching (6) TAU (2) UHD (5) VR (2) Video Streaming (12) VoLTE (8) VoWiFi (2) Wi-Fi (31) YouTube (6) blockchain (1) eICIC (1) eMBMS (1) iBeacon (1) security (1) telecoin (1) uCPE (2)
Password confirmation
Please enter your registered comment password.