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6 things you should know about enterprise WLAN

For the rest of the Q2 2015 issue of Korea Communication Review magazine please click here 6 things you should know about enterprise WLAN IEEE 802.11 wireless LAN (“WLAN”) technology, commonly...

03/12/2015

41,625

Tech-Blog

Netmanias Interview with HFR at MWC 2015 (In-building DAS, Fronthaul, Backhaul)

For the rest of the Q2 2015 issue of Korea Communication Review magazine please click here HFR, a Korean specialist in Optical and Radio Networking technologies, presented its newest In-building DAS, C-RAN Fronthaul and Carrier Ethernet solutions at Mobile World Conference (MWC) 2015. 1. In-building DAS HFR unveiled uRadioTM (DRS product), an upgraded version of its precedent In-buil...

03/12/2015

31,751

Tech-Blog

Captive portal-based user authentication in KT, SK Telecom and LG U+'s Wi-Fi hotspots

As noted in the previous post, currently there are two types of user authentication in the Wi-Fi networks operated by Korean operators: IEEE 802.1X-based and captive portal-based authentication. 802.1X-based authentication targets primarily mobile devices with an operator's USIM card, whereas captive portal-based authentication to be discussed here is used to attract users without a permane...

03/10/2015

68,335

Tech-Blog

Key Parameters for 5G Mobile Communications [ITU-R WP 5D Standardization Status]

[Netmanias] Dr. Heung-Ryeol You, General Manager at KT's Network Strategy BU, is in charge of spectrum strategies, and is sharing here what he learned at the 21st ITU-R WP 5D meeting closed early February. One of the main topics at the meeting was the 8 key parameters for 5G. Below let's see what has been discussed at the meeting. Before we begin, we would like to thank Dr. You for shar...

03/06/2015

55,940

Tech-Blog

Why do we need antenna-integrated RRH (Remote Radio Antenna, RRA)?

For the rest of the Q2 2015 issue of Korea Communication Review magazine please click here Contents 1. Background of Antenna-Integrated RRH 2. Features of Antenna-Integrated RRH 3. Outlook for the Antenna-Integrated RRH Market 4. Installation Issues in the Small Cell Market * RRA is a brand name of antenna-integrated RRH by the author's company 1. Background of Antenna-...

03/02/2015

85,178

Tech-Blog

IEEE 802.1X-based user authentication in KT, SK Telecom and LG U+'s Wi-Fi networks

We will talk about call flow in IEEE 802.1X-based user authentication used in Korean network operators' Wi-Fi networks. Before we continue, let's take a look at what Korean operators' current Wi-Fi authentication are like first. KT provides the following SSIDs in its Wi-Fi Hotspots: ollehWiFi (with lock icon): Users are authenticated based on the IMSI stored in USIM of their...

02/26/2015

81,704

Tech-Blog

Korean big 3, getting ready for 5G SK Telecom, KT and LG U+ (3): LG U+

For the rest of the Q1 2015 issue of Korea Communication Review magazine please click here 3. 5G Strategies by LG U+ LG U+, acknowledging service as a more important factor in 5G than speed, is putting more efforts into developing differentiated services than mere technologies competition. That is, it is taking a stance that it would develop 5G services first, and then take care of t...

01/27/2015

38,731

Tech-Blog

Korean big 3, getting ready for 5G SK Telecom, KT and LG U+ (2): SK Telecom

For the rest of the Q1 2015 issue of Korea Communication Review magazine please click here 2. 5G Strategies by SK Telecom Immediately after KT announced its new vision GiGAtopia in May, 2014, SK Telecom, the No. 1 mobile operator in Korea, also presented ICTnomics (ICT + Economics) designed to integrate ICT into a wide range of industries as the core concept of its 30-year growth plan....

01/20/2015

41,024

Tech-Blog

Concept and Characteristics of 5G Mobile Communication Systems (1)

The current systems that we are using now, like 3GPP LTE or LTE-A, are commonly called 4G mobile communication systems. Then, what are 5G mobile communication systems? To discuss 5G, we should first look into what the mega trends in mobile services are these days. [M1. Traffic growth] The biggest trend would be soaring demands for multimedia and social network services witnessed recently. As...

01/15/2015

47,386

Tech-Blog

Korean big 3, getting ready for 5G SK Telecom, KT and LG U+ (1): KT

For the rest of the Q1 2015 issue of Korea Communication Review magazine please click here In Korea, LTE service began back in July 2011. Then in June 2013 when LTE subscription exceeded 40% of the nation's total mobile subscription, LTE-A was commercialized for the first time in the world. Here are some facts about Korea's LTE. As of December 2014, i) Korea recorded an LTE sub...

01/14/2015

45,940

Tech-Blog

[Sponsor Content] Ethernet access at 10 Gbps - 10G is now where it’s at!

Executive Summary The MetroEthernet Forum (MEF) has defined and promoted Carrier Ethernet, a set of Ethernet-based carrier services. These services allow subscribers such as enterprises, research institutions, schools, and wireless carriers to achieve Ethernet-based connectivity over a wide-area network. Network Interface Devices (often called NIDs) are becoming the norm at the User-Network I...

01/12/2015

36,271

Tech-Blog

Now giga Internet service available from all the Korean big 3 operators

This article was published in Korea Communication Review magazine (KCR Q1 2015). For the rest of the Q1 2015 issue of Korea Communication Review magazine please click here The 'giga Internet era' has just begun, finally offering speeds of 1 Gbps - 10 times faster than the 100Mbps. For the past 7 ~ 8 years, the maximum Internet speeds for all access networks (FTTH, LAN and XDS...

12/18/2014

62,339

Tech-Blog

[MEF Seminar VoD] Carrier Ethernet 2.0 Revolution – Seoul Korea (Part II)

Carrier Ethernet 2.0 Revolution – Seoul Korea Date: December 10, 2014 Location: Seoul, Korea Hosted by HFR and SDH This seminar from the MEF brings a new local and global perspective on the world’ most successful network service deployment over the last decade: Carrier Ethernet. It features an in depth look at Carrier Ethernet 2.0 (CE 2.0) services,...

12/18/2014

20,274

Tech-Blog

[MEF Seminar VoD] Carrier Ethernet 2.0 Revolution – Seoul Korea (Part I)

12/18/2014

21,504

Tech-Blog

Debates on LTE-Unlicensed and Wi-Fi (KT, SK Telecom, Qualcomm, etc.)

This article was published in Korea Communication Review magazine (KCR Q1 2015). For the rest of the Q1 2015 issue of Korea Communication Review magazine please click here 1. What is "LTE-Unlicensed"? And what's the big deal about it? 2. Korean Operators' Position (KT, SK Telecom and LG U+) 3. Discussion on Regulatory Requirements 4. LTE Advocates vs. Wi-Fi Advocates 1. W...

11/28/2014

55,588

Tech-Blog

World IT Show 2014: SK Broadband/SK Telecom's Gigabit Internet Access Network

SK Broadband & SK Telecom (SK) introduced various gigabit Internet access network solutions at the World IT Show 2014 held in Busan on October 20th. SK noted that the new solutions will be able to provide a bidirectional Internet speed of 1 Gbps per user. The company has been offering Internet services including LAN, FTTH, HFC and XDSL to its 4.7 million subscribers. At the show, the compan...

10/31/2014

66,691

Tech-Blog

World IT Show 2014: LG U+'s Gigabit Internet (LAN and FTTH) Networks - Architecture and...

LG U+ unveiled its gigabit Internet access network solution at the World IT Show 2014 held in Busan on October 20th. The new solution is said to be capable of supporting bidirectional Internet speed of 1 Gbps per user. Unlike its competitors, KT or SKB, the company offers LAN, FTTH and HFC services only, and not XDSL. At the show, LG U+ gave a demonstration of the technology and equipment...

10/29/2014

50,995

Tech-Blog

KT launched GiGA Internet, Korea's first nationwide gigabit Internet service on Oct. 20...

Earlier in May, KT's Chairman Chang-gyu Hwang announced the company's GiGAtopia vision (see What's GiGAtopia envisioned by Chairman Chang-gyu Hwang of KT?). Then soon in June, KT made another announcement that it would commercialize gigabit Internet service in the second half of the year. So, it has been predicted that the company would begin the service probably at the end of t...

10/27/2014

63,799

Tech-Blog

SK Telecom's Network Evolution Strategies (3) - RAN Architecture Evolution Strategy

3. RAN Architecture Evolution Strategies SK Telecom introduced C-RAN right from the very early stages of the LTE service commercialization (January 2012) as an effort to achieve higher mobile network operation efficiency and more cost savings. As a result, most of the company's RAN is now in C-RAN architecture, where macro BBUs are separated from RRHs, and moved to centralized locations...

10/27/2014

42,880

Tech-Blog

SK Telecom's Network Evolution Strategies (2) - Inter-cell Coordination Evolution Strategy

2. Inter-cell Coordination Evolution Strategies CA improves network capacity by broadening frequency bandwidth, whereas inter-cell coordination technologies do the same task by enhancing frequency efficiency. Inter-cell coordination is designed to manage radio resources more efficiently by having cells in different sites share user and/or cell information with each other. Inter-cell coo...

10/13/2014

34,426

Tech-Blog

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