Webinar topic: Radio Optimization In Telco Presenter: Achmad Mardiansyah, Yoyok Dwi Parindra In this webinar series, Radio Optimization In Telco Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback Check our schedule for future events: https://www.glcnetworks.com/en/schedule/ Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord Recording available on Youtube https://youtu.be/M0sAMZHqziA

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Radio
Optimization in
Telco
GLC Webinar,
10 Dec 2021
Achmad Mardiansyah
Yoyok DP
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Agenda
● Introduction
● Review prerequisite knowledge
● Telco topology
● Telco nodes and functions
● Telco evolution
● Q & A
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introduction
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What is GLC?
● Garda Lintas Cakrawala (www.glcnetworks.com)
● Based in Bandung, Indonesia
● Areas: Training, IT Consulting
● Certified partner for: Mikrotik, Ubiquity, Linux foundation
● Product: GLC radius manager
● Regular event
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Trainer Introduction
● Name: Achmad Mardiansyah
● Base: bandung, Indonesia
● Linux user since 1999, mikrotik user since 2007, UBNT
2011
● Mikrotik Certified Trainer
(MTCNA/RE/WE/UME/INE/TCE/IPv6)
● Mikrotik/Linux Certified Consultant
● Website contributor: achmadjournal.com, mikrotik.tips,
asysadmin.tips
● More info:
http://au.linkedin.com/in/achmadmardiansyah
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Past experience
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● 2021 (Congo DRC, Malaysia): network support,
radius/billing integration
● 2020 (Congo DRC, Malaysia): IOT integration,
network automation
● 2019, Congo (DRC): build a wireless ISP from
ground-up
● 2018, Malaysia: network revamp, develop billing
solution and integration, setup dynamic routing
● 2017, Libya (north africa): remote wireless migration
for a new Wireless ISP
● 2016, United Kingdom: workshop for wireless ISP,
migrating a bridged to routed network

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About GLC webinar?
● First webinar: january 1, 2010 (title:
tahun baru bersama solaris - new year
with solaris OS)
● As a sharing event with various topics:
linux, networking, wireless, database,
programming, etc
● Regular schedule
● Irregular schedule: as needed
● Checking schedule:
http://www.glcnetworks.com/schedule
● You are invited to be a presenter
○ No need to be an expert
○ This is a forum for sharing: knowledge,
experiences, information
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Please introduce yourself
● Your name
● Your company/university?
● Your networking experience?
● Your general experience?
● Your expectation from this course?
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Prerequisite
● This presentation some prerequisite knowledge
● We assume you already know:
○ Telecommunication in general
○ Signal
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Review prerequisite knowledge
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Its all started from these… (early days of
telecommunications)
● Sound can travel over media (thread / wire)
● Sound can travel through electricity
● Speaker and microphone were invented
● Mesh connection? Not an option
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Telecommunication system
● A hub is created that connects all CPEs → CO
● Switching functions are automated (digital switch)
● We need to separate signalling and data (voice) →
off-band signalling, CCS, version 7 → CCS7 → SS7
● Benefits:
○ Utilize voice link (money)
○ Can create more services (money):
■ Hunting
■ SMS
■ Toll-free
■ Service number
■ Etc. you name it
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SS7 architecture
components:
● Service Control Points/SCP.
integrated databases and
computers
● MTP (Message Transfer Part).
which refers to data circuit
● STP (Signal Transfer Points).
Similar to switch
● ISUP (ISDN User Part)
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Telecommunication topology
● Star topology
● Nodes:
○ Customer Premise Equipment (CPE)
○ Central Office (CO)
○ Links:
■ Access network / local loop (CPE - CO)
■ Trunk (CO - CO)
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Source: www.mikundan.com

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Telecommunication services
● Initially run by monopoly → which will be divest
● Service:
○ Voice communication
○ Data communication
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Source: www.mikundan.com

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Layers in telecommunincations
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Source: APNIC

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Layers in traditional communication
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Source: APNIC

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Mobile communications
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Mobile communication (1G)
● 1980s
● FDMA (frequency division multiple access)
● Analog signal (MS to tower)
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Mobile communication (2G)
● 1990s
● TDMA (time division multiple
access)
● Frequency reuse
● Digital signal (MS to tower)
● Encryption of digital signal
● Nodes:
○ BTS
○ BSC
○ MSC
○ HLR
○ VLR
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Mobile communication (2.5 G)
Additional improvement
● New modulation → higher speed
● Ability to connect to datanetwork (packet switch) -> GPRS
● GPRS (general Packet Radio Service)
○ SGSN (serving GPRS support node)
○ GGSN (gateway GPRS support node)
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GSM architecture and interfaces
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Mobile communication (3G)
● New modulation -> higher speed
● Implementation: UMTS / CDMA2000
● New service: video call
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Mobile communication (4G)
● New packet switch core (EPC - evolved packet core, LTE - Long term
evolution)
● Want to get rid of legacy tech (Circuit Switch - CS)
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Source: www.3g4g.co.uk

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Mobile communication (4G), call flow
● Via 2G/3G (generic access
● Via CS fallback (CSFB)
● Via VoLTE (Voice Over LTE)
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Source: www.netmanias.com

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Mobile communication, IP network view
● Whole network layers are based on IP
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Source: www.pngwing.com

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Mobile communication (5G phase 1)
● Updates on access network (wireless)
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Source: www.3g4g.co.uk

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Mobile communication (5G phase 2)
● Deployment of 5G core network (NGCN)
● Whole system will work fully on 5G system
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Source: www.3g4g.co.uk

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Mobile communication (5G phase 3)
● Elimination of LTE core
● All connections via 5G core network
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Source: www.3g4g.co.uk

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LIVE practice
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preparation
● SSH client
● SSH parameters
○ SSH address
○ SSH port
○ SSH username
○ SSH password
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Q & A
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Interested? Just come to our training...
● Topics are arranged in systematic and logical way
● You will learn from experienced teacher
● Not only learn the materials, but also sharing experiences, best-practices, and
networking
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End of slides
● Thank you for your attention
● Please submit your feedback: http://bit.ly/glcfeedback
● Find our further event on our website : https://www.glcnetworks.com/en/
● Like our facebook page: https://www.facebook.com/glcnetworks
● Slide: https://www.slideshare.net/glcnetworks/
● Discord (bahasa indonesia): (https://discord.gg/6MZ3KUHHBX)
● Recording (youtube): https://www.youtube.com/c/GLCNetworks
● Stay tune with our schedule
● Any questions?
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