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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

Evolution of SK Telecom’s in-building LTE solutions

For the rest of the Q3 2015 issue of Korea Communication Review magazine please click here As of April 2015, SK Telecom's mobile data traffic accounts for 44% of the entire mobile traffic in Korea (See Figure 1). Since the launch of LTE service, the company has experienced rapid growth of mobile traffic - more than tenfold from 5.7 PB in June 2011 (right before LTE service launch) to...

07/09/2015

53,786

Reports

EMM Procedure 7. Cell Reselection without TAU

Table of Contents 1. Introduction 2. Cell Reselection: Required System Information and Criteria 2.1 Overview of Cell Reselection Procedure 2.2 System Information 2.3 Cell Reselection Criteria 3. Cell Reselection without TAU 4. EPS Entity Information: Before/After Cell Reselection without TAU 5. Closing 1. Introduction Through the three compa...

04/23/2014

111,703

Technical Documents

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

62,158

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

58,774

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

83,452

Tech-Blog

SMEC's LTE Femto Gateway with X2 Broker - Facilitating instant mass deployment of LTE f...

More About SMEC Table of Content 1. Introduction 2. HeNB-GW: Benefit and Issues 2.1 Benefits 2.2 Issues – X2 Handover Support 3. SMEC HeNB-GW Solution 3.1 SMEC HeNB-GW 3.2 X2 Service Broker 3.3 X2 Service Broker Operation 4. Benefits of SMEC HeNB-GW Acronyms 1. Introduction An LTE femtocell* (HeNB) is an ultra-small cellular base station that connects to a m...

03/14/2016

46,374

Reports

KT-Ericsson demonstrates the World-First Core Technology for maintaining CA in 5G Network

KT announced on Dec. 16 that, together with Ericsson, it has developed and verified the world's first technology to maintain Carrier Aggregation (CA) for macro cells and small cells in HetNet, which is currently drawing attention as the core network infrastructure for 5G. HetNet, being a network technology increasing data processing capacity and speed by establishing a number of small c...

12/20/2014

6,701

Korea ICT News

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

86,966

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

30,049

Tech-Blog

EMM Procedure 6. Handover without TAU - Part 1. Overview of LTE Handover

Table of Contents 1. Introduction 2. Overview of LTE Handover 2.1 Measurement 2.2 Handover Decision 2.3 Handover Prodedure 2.4 Handover Interruption Time 2.5 Mobility Robustness Optimization 3. Closing 1. Introduction This document describes the handover procedure defined as EMM Case 6 in our technical document, “Eleven EMM C...

03/06/2014

109,301

Technical Documents

SK Telecom-Ericsson successfully demonstrate 5G Small Cell with Ultra-Low Inter-Cell In...

5G small cell system supports higher performance compared to LTE by removing inter-cell interference based on a new 5G radio _frame architecture Plan to open a 5G testbed at SK Telecom’s Bundang Building within this year SK Telecom today announced that it, together with Ericsson, successfully demonstrated an innovative 5G small cell system that offers much higher data rates than LT...

06/23/2015

10,502

Korea ICT News

Analysis of LTE – WiFi Aggregation Solutions

Table of Content 1. Introduction 2. Current Trends in LTE - WiFi Aggregation 2.1 3GPP-based LTE - WiFi Aggregation 2.1.1 LTE in Unlicensed/Licensed Assisted Access (LTE-U/LAA) 2.1.2 LTE - WiFi Link Aggregation (LWA) 2.2 IETF-based LTE - WiFi Aggregation 2.2.1 MPTCP Proxy 3 Summary and Future Trends 1. Introduction...

03/21/2016

74,931

Reports

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

45,075

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

46,573

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

66,694

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

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