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NETMANIAS
TECH-BLOG
Evolution of Mobile RAN Architecture in LTE/LTE-A Era (C-RAN)
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1. Traditional RAN Architecture and Issues 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 by BBU Centralization (C-RAN)
Date: 04/16/2014
Author: Dr. Michelle M. Do and Dr. Harrison J. Son
Tags: C-RAN/Fronthaul, CoMP, LTE, LTE-A, SK Telecom
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Fronthaul Size: Calculation of maximum distance between RRH and BBU
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In C-RAN (Centralized/Cloud RAN), the more RRHs are covered by one CO (BBU hostelling site), i) the fewer COs are required, and ii) the more BBUs can be centralized at one CO...
Date: 04/01/2014
Author: Dr. Harrison J. Son, S.M. Shin
Tags: C-RAN/Fronthaul, LTE
78,695
  
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Why WDM is essential in C-RAN fronthaul networks? - Ultra high CPRI link capacity
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Our question in this post is: Why does the CPRI link between BBU (at CO) and RRH (at Cell Site) in C-RAN require a ultra high Gbps bandwidth?
Date: 03/12/2014
Author: Steve Shin and Dr. Harrison J. Son
Tags: C-RAN/Fronthaul, CPRI, LTE
74,686
  
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CPRI (1): Emergence of C-RAN/Fronthaul and CPRI overview
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Emergence of C-RAN (Cloud RAN) and CPRI overview. 1. Emergence of C-RAN (Separation of Baseband and Radio, and Baseband Centralization) , 2. CPRI (Interface Specification for Separated DUs and RUs)
Date: 03/04/2014
Author: Steve Shin and Dr. Harrison J. Son
Tags: C-RAN/Fronthaul, CPRI, LTE, LTE-A
88,704
  
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Do Google Global Caches (GGCs) serve YouTube live traffic as well, or not?
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Do Google Global Caches (GGC) serve YouTube live traffic as well, or not?...So, do GGCs server live traffic as well? Yes, they do!
Date: 11/20/2013
Author: Ricky Yang and Dr. Harrison J. Son
Tags: Google, Google Global Cache, HLS, IPTV, OTT, Video Streaming, YouTube
106,342
  
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What is DHCP Option 82?
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We will look into DHCP Option 82 used in the wireline networks of network operators today.
Date: 11/01/2013
Author: Chris Yoo
Tags: DHCP, Network Protocol
63,255
  
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YouTube's Live TV Streaming in Mobile Devices - HLS & Adaptive
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This post will analyze the streaming methods used in YouTube's Live TV streaming services for mobile devices in an LTE network and a Wi-Fi network based on our actual measurements.
Date: 10/30/2013
Author: Ricky Yang and Dr. Harrison J. Son
Tags: Google, HLS, HTTP Adaptive Streaming, IPTV, Video Streaming, YouTube
96,329
  
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LTE QoS (Part 3) - P2P Traffic BW Control using the LTE QoS
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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.
Date: 10/25/2013
Author: Dr. Michelle M. Do
Tags: LTE, QoS
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LTE QoS (Part 2) - LTE QoS Parameters (QCI, ARP, GBR, MBR and AMBR)
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We will look a little bit further into LTE QoS that we discussed last time, and learn what QoS parameters are for.
Date: 10/15/2013
Author: Dr. Michelle M. Do
Tags: LTE, QoS
412,765
  
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YouTube, changing the way of delivering videos: Chunking and Adaptive Streaming are In, Progressive Download is Out!
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Recently, YouTube has changed/evolved the way it delivers video contents. It used to be a big fan of HTTP progressive download (downloading a video file by a single request just like downloading a data file) until last year. However, from this year, many efforts have been made by YouTube (e.g. sw...
Date: 10/04/2013
Author: Ricky Yang & Dr. Harrison J. Son
Tags: Google, HTTP Adaptive Streaming, IPTV, Video Streaming, YouTube
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Private 5G Deployment Status in Korea [2025.02.15]
     
     
     
     
     

 
  Netmanis One-Shot, Private 5G Frequency Allocation Status in Korea (36 locations),2025.02.15  

 

 

  Private 5G Deployment Case Study in Korea  
     
     

 

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SK networks service

 

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Newgens

 

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KT MOS

 

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Sejong Telecom

 

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KT Private 5G: Multi-Slice and Multi-MEC for an Enterprise
     
     
     
     
     

 

   
 

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