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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

36,455

Tech-Blog

CoMP (1): CoMP Types - CS, CB, JT and DPS

Today, we will learn about CoMP, an inter-cell cooperation technology in LTE-A, since we learned about ICIC and eICIC in the previous posts. At an early stage of LTE/LTE-A, offering high speed is the most important marketing point for operators. However, as LTE subscribers and traffic grow, satisfying users with high Quality of Experience (QoE), for example, by improving user throughputs at cel...

08/12/2014

65,706

Tech-Blog

Small Cell Industry Trends & Talent Predictions

We are pleased to share with you all an interesting article contributed by Matt Walsh who has experience spans multiple telecom spaces, focusing mainly in the areas of: wireless infrastructure, DAS/Small Cell technology, RF antenna, wireless broadband, OSP, 4G, LTE/LTE-A/LTE-U, 5G/IoT/M2M, NB-IoT, Wi-Fi, cell towers, cable, fiber. mobile core, carriers/MVNOs, public safety, smart cities, HetNet...

05/09/2017

26,967

Tech-Blog

Interference Coordination in LTE/LTE-A (2): eICIC (enhanced ICIC)

Enhanced Inter-Cell Interference Coordination (eICIC) As noted in the previous post about ICIC, we will find out about enhanced Inter-Cell Interference Coordination (eICIC), an interference control technology in LTE-A in this post. In LTE/LTE-A, one key challenge for operators is that they have to increase network capacity to keep up with fast-growing traffic. Especially, crowded areas in m...

08/06/2014

65,141

Tech-Blog

CoMP (2): CoMP Coordination Areas Defined in 3GPP (7 Scenarios)

In the CoMP scenarios defined in 3GPP Release 111 and Release 122, CoMP is used within a single eNB (intra-eNB) with ideal backhaul only - in restricted areas in Release 11 among eNBs (inter-eNB) with non-ideal backhaul as well - in more expanded areas in Release 12 According to NGMN3, ideal backhaul refers to one with latency of 2.5 usecs or less and capacity of 10 Gbps or higher, whe...

08/19/2014

62,157

Tech-Blog

Netmanias interview with China Mobile at MWCS 2015: 4G evolution (LTE-Advanced, 4.5G) t...

Netmanias interview with China Mobile at MWCS 2015: 4G evolution (LTE-Advanced, 4.5G) technologies Part 1. LTE-Advanced ► Part 2. 4.5G (TDD+) 4.5G (TDD Evolution, TDD+) China Mobile also introduced some TDD+ (also known as TDD evolution), which can be called "not quite 5G yet, but 4.5G" technologies, in cooperation with Huawei. The figure below shows the concept of 4.5G, along...

09/03/2015

58,772

Tech-Blog

Interference Coordination in LTE/LTE-A (1): Inter-Cell Interference Coordination (ICIC)

As mobile communication technology has evolved dramatically, from LTE (10 MHz) to LTE-A (10+10 MHz), and then to wideband LTE (20 MHz), South Korea's mobile market is hotter than ever with its big 3 operators competing fiercely in speed and quality (see Netmanias Report, LTE in Korea UPDATE - May 1, 2014). Operators can offer different maximum speeds depending on how wide frequency bandwidt...

06/05/2014

83,451

Tech-Blog

Netmanias Interview with HFR - Fronthaul Solutions for LTE/LTE-A C-RAN (Cloud RAN)

HFR is probably most known as a vendor of wired/wireless network equipment like Mobile fronthaul, Carrier Ethernet, FTTx, etc. Today, we are going to hear from Dr. J.H. Lee (jongheonlee@hfrnet.com), CTO of HFR about one of its most popular solutions, flexiHaulTM, a mobile optical access solution. 1. Welcome! Thank you for being with us. Can you tell us a little bit about HFR first?...

05/27/2014

86,965

Tech-Blog

Cognitive Radio the New 5G Radio

We are pleased to share with you all an interesting article contributed by Kuldeep Kaushik who is Senior Manager / Solution Architect in Consulting and System Integration. Kuldeep Kaushik (https://in.linkedin.com/in/kuldeepkaushik007) Management & Technology Consultant at Ericsson A...

10/17/2016

30,048

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

45,073

Tech-Blog

LG U+ achieved 600Mbps in its second LTE-U demonstration

For the rest of the Q3 2015 issue of Korea Communication Review magazine please click here In its second demonstration of LTE in Unlicensed spectrum ("LTE-U", LAA in 3GPP term) conducted last month - 7 months after its first demonstration where it showed 300 Mbps through CA of 20 MHz at 2.6 GHz and another 20 MHz at 5.8 GHz, LG U+ successfully achieved 600 Mbps through carrier aggregation (C...

06/15/2015

66,693

Tech-Blog

SK Telecom's Network Evolution Strategies (1): Carrier Aggregation Evolution Strategy

SK Telecom is the #1 mobile operator in Korea, with sales of KRW 16.6 trillion (USD 15.3 billion) in 2013, and with 50.1% of a mobile mobile subscription market share in 2Q 2014. It launched LTE service back in July 2011, and now more than half of its subscribers are LTE service subscribers, with 55.8% of LTE penetration as of 2Q 2014. Due to LTE subscription growth, more advanced device feat...

10/07/2014

46,571

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

48,744

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

89,568

Tech-Blog

5G New Radio

We are pleased to share with you all an interesting article contributed by Upendra Kumar Tiwari. Upendra Kumar Tiwari Senior Research Associate Subject Matter Expert in Telecom at Clarivate Analytics All Articles by Upendra Kumar Tiwari...

09/07/2017

31,005

Tech-Blog

Evolution of Mobile RAN Architecture in LTE/LTE-A Era (C-RAN)

1. Traditional RAN Architecture and Issues 1.1 Issue No. 1: Degraded service quality and network performance due to inter-cell interference 1.2 Issue No. 2: Increased costs of building and operating cell sites 2. Degradation of service quality and network performance due to inter-cell interference: Prevented by reducing X2 distance 3. Costs of building and operating cell sites: Reduced...

04/16/2014

66,152

Tech-Blog

Why no Soft Handover in LTE ?

We are pleased to share with you all an interesting article contributed by Mohamed Abdel Monem. Mohamed Abdel Monem Radio Optimization Senior Engineer at Vodafone Egypt All Articles by Mohamed Abdel Monem...

12/20/2016

40,897

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

57,957

Tech-Blog

Network-based Edge-Computing: Overhyped & Underpowered?

We are pleased to share with you all an interesting article contributed by Dean Bubley who is mobile & telecom sector analyst, expert consultant & conference speaker. Dean Bubley Founder and Director at Disruptive Analysis All Articles by Dean Bubley...

05/23/2018

24,016

Tech-Blog

Mobile Network Architecture for 5G Era - New C-RAN Architecture and Distributed 5G Core

It's been only a year and a half since we excitedly introduced the Evolution of Mobile RAN Architecture in LTE/LTE-A Era (C-RAN) last April. And today we are discussing the same for 5G era already. Key transitions from 3G to 4G included i) network architecture change from coverage-based to capacity-based, and ii) introduction of new 4G element, X2 interface. Specifically, cells became s...

10/06/2015

131,103

Tech-Blog

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