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...

Obviously, the hottest issue in mobile communication today is LTE. All three top telecommunication operators in Korea are trying hard to promote their brands, each containing the technical term "LTE" somewhere, for greater exposure of the brands to the public. So, we will briefly go over what network elements make the LTE network today. The Figure below is an illustration of an LTE Network R...

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...

In last November, KT, a South Korea-based telco, formed 'NB-IoT Alliance' with LG U+, aiming to launch NB-IoT service as early as Q1 2017. Later in the month, the company, apparently stimulated by SK Telecom who had just started LoRa-based, IoST-dedicated, commercial services, announced another plan to complete deployment of a nationwide NB-IoT network by June 2017 for faster entry to t...

For the rest of the Q3 2015 issue of Korea Communication Review magazine please click here Hear from CTO of Korean Telcos 1. Dr. Dongmyun Lee, CTO of KT: Leading 5G through wired/wireless Integration ► 2. Mr. Changwoo Lee, CTO of LG U+: LG U+'s Mobile Network Evolution Strategies 3. Dr. Jingsung Choi, CTO of SK Telecom: SK Telecom's 5G Evolution Strategies...

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...

​We are pleased to share with you all an interesting article contributed by Leonardo Zanoni Pedrini. Leonardo Zanoni Pedrini Telecom Consultant at Telefônica Brasil (Telefônica | Vivo) All Articles by Leonardo Zanoni Pedrini...

We will look a little bit further into LTE QoS that we discussed last time, and learn what QoS parameters are for. There are two types of EPS bearers: default and dedicated. In the LTE network, the EPS bearer QoS is controlled using the following LTE QoS parameters: ▶ Resource Type: GBR or Non-GBR ▶ QoS Parameters QCI ARP GBR MBR APN-AMBR UE-AMBR Every EPS bearer must...

For the rest of the Q3 2015 issue of Korea Communication Review magazine please click here Hear from CTO of Korean Telcos 1. Dr. Dongmyun Lee, CTO of KT: Leading 5G through wired/wireless Integration 2. Mr. Changwoo Lee, CTO of LG U+: LG U+'s Mobile Network Evolution Strategies ► 3. Dr. Jingsung Choi, CTO of SK Telecom: SK Telecom's 5G Evolution Strategies Dr....

All wireless telecommunication networks (e.g. Wi-Fi, WiBro and LTE provide “user authentication” and “security over radio link (integrity check (protection/verification) and ciphering (or encryption))” features. User authentication is required for network operators to ensure that only those who subscribe to them (i.e. paid subscribers) can access their networks. In wir...

On April 20, in time for the arrival of the Samsung Galaxy S8, SK Telecom began nationwide application of Connected Mode Discontinuous Reception (C-DRX), a solution specifically designed to give enhanced battery efficiency, following KT who did the same in the beginning of the month. C-DRX refers to a technique that allows a device (UE) to discontinuously receive data in connected state...

It has been over a year since KT Chairman Hwang Chang Kyu’s declaration of his vision GiGAtopia on May 20, last year. The main idea of GiGAtopia was that the company would make both of its wired and wireless networks giga-class, through investment of KRW4.5 trillion for three years to come. We thought it would be a good time to check how they did for the past one year, and what innovation...

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...

This time we will give you a brief overview of an LTE Tracking Area (TA) and Tracking Area Update (TAU). While an LTE device (UE) is in active state (i.e. while communicating, or while in EMM-Registered/ECM-Connected/RRC-Connected state in LTE terms), its location is known by the LTE network at cell level (i.e. on a cell granularity), e.g. in cell2 in eNB1. However, while the UE is in idle...

We are pleased to share with you all an interesting article contributed by Mahmoud Ali who has 10 years of experience as Network, RF Planning and Optimization Team leader / Solutions Architect / Expert in GSM/UMTS/LTE. Mahmoud Ali LTE Team Leader/SME at AdvaComm All Articles by M...

SK Telecom faces concerns about market stagnation As the largest mobile operator in South Korea, SK Telecom has been the first in the world to present innovative LTE services like LTE-A and LTE CA every year since its LTE service launch in 2011. The operator has posted higher ARPU and revenues thanks to an increase in LTE subscriptions, which has a higher ARPU than 2G/3G. However, recen...

In the last two posts (Part 1, Part 2), we learned about LTE QoS. Now, we will show you an example of controlling P2P traffic using the LTE QoS in the LTE network. Let's say there is a network operator named "NMC Telecom", and it offers a service plan with the following features: No bandwidth limitation for Internet usage Data rate limitation (512 Kbps for download, and 128 Kbps fo...

We are pleased to share with you all an interesting article contributed by Jihoon Lee. Jihoon Lee Founder of NextEPC All Articles by Jihoon Lee How to contribute your article to Netmanias.com !...

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...

Houman Sadeghi Kaji who is Experienced Board Member with a demonstrated history of working in the telecommunications industry. Skilled in Wi-Fi offloading/on loading Network Design, 4G, Diameter, MNO, MVNE, MVNO and Reliability Engineering. Houman Sadeghi Kaji Chief Innovation Officer (CIO) at Lotus Communication Inc....