Taiz Academy For Telecommunication

Taiz Academy For Telecommunication

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Updated: May 3, 2026 at 5:13 PM

Taiz Academy For Telecommunication

Taiz_Telecom Company for Telecom Services & Consultants

@Taiz_TelecomDevelopement is a growing community focused on consultants and telecom and related topics

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Latest Posts

Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#Why #we #use #Radio (#Microwave #Radio #Links) #in #Microwave #Communication:

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

#Why #we #use #Radio (#Microwave #Radio #Links) #in #Microwave #Communication:
1. #Wireless #Transmission
• No need for physical cables (like fiber or copper).
• Useful for remote/rough areas where laying cable is difficult or expensive.
2. #High #Capacity
• Microwave radio can carry large amounts of data (voice, video, internet, telecom traffic) over long distances.
3. #Line #of #Sight #Communication
• Radio waves at microwave frequencies travel in a straight line, ideal for tower-to-tower links.
4. #Quick #Deployment
• Faster to install compared to fiber, especially in emergency or military use.
5. #Reliable #Backup
• Often used as a backup path if fiber fails (disaster recovery, redundancy).
6. #Spectrum #Allocation
• #ITU (International Telecommunication Union) allocates specific radio frequency bands for microwave communication.

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

#Evolution #of #Telecom #Sites #from 2G to 5G

Telecom site architecture has significantly evolved across generations to improve performance, efficiency, scalability, and cost optimization.
In early generations, sites were simple and centralized. Over time, network components became logically and physically separated, enabling smarter deployment and better resource utilization.

#2G – #BTS (#Base #Transceiver #Station)

In 2G networks, the architecture was highly centralized.
The BTS (Base Transceiver Station) handled:
Signal transmission and reception
Baseband signal processing
Radio control functions
Essentially, it was one unit performing all tasks.
Features:
Simple architecture
Easy installation and maintenance
Drawbacks:
High power consumption
Significant feeder cable losses
Limited scalability and flexibility

#3G – #NodeB & (#Separation #Begins)

With 3G, the concept of component separation started to emerge.
The NodeB is an evolution of the BTS, but with improved capabilities.
Gradually, functions began to split into:
1. #BBU (#Baseband #Unit):
Handles:
Signal processing
Control functions
Typically located indoors or at the base of the site
2. #RRU (#Remote #Radio #Unit):
Handles:
RF transmission and reception
Installed near the antenna (on tower or rooftop)

The separation:

The shift from centralized to distributed architecture was driven by:
Reduced feeder losses:
Moving RF closer to the antenna minimizes signal loss.
Improved energy efficiency:
Less power is needed to transmit signals over shorter RF paths.
Better scalability:
Easier to upgrade or expand capacity without replacing the entire system.
Enhanced performance:
Improved signal quality and coverage.

(4G & 5G – Brief Insight)
#4G (#LTE):
Full adoption of BBU + RRU architecture
Introduction of CPRI/eCPRI links
More flexible and software-driven networks
#5G:
Further evolution into:
Centralized / Cloud RAN (C-RAN)
Virtualized BBUs (vBBU)
Use of:
Massive MIMO
Beamforming
Ultra-low latency and high capacity

#Key #Takeaway
The evolution from 2G → 5G reflects a clear trend:
From centralized, hardware-heavy systems
To distributed, flexible, and software-defined architectures
This transformation was essential to meet the increasing demands for:
Higher data speeds
Lower latency
Better coverage
Efficient energy usage.

Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#Mobile #Networks #Evolved #From 2G to 5G

In 2G, everything was basic. The antenna was connected directly to the BTS. Simple setup, but limited capabilities.

With 3G, things started improving. The RRU (Remote Radio Unit) was introduced, moving some processing closer to the antenna. This helped with better signal and performance.

Then came 4G, where the architecture became more efficient. The RRU moved even closer to the antenna, and the BBU (Baseband Unit) handled more centralized processing. This is where speed and data really took off.

Now in 5G, the system is much smarter and more flexible. It’s split into:
• #RU (Radio Unit) near the antenna
• #DU (Distributed Unit)
• #CU (Central Unit) in the cloud

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

#Types #of #Network #Nodes #in #Modern #Telecommunications (#4G / #5G #Era)


🔹 1. #Radio #Access #Network (#RAN) #Nodes

These are the closest nodes to the user (UE):

- #eNodeB (#4G #LTE)
The base station that connects user devices to the LTE network.

- #gNodeB (#5G #NR)
The 5G evolution of the base station, enabling higher data rates, ultra-low latency, and massive connectivity.

Their main role: managing wireless communication between the user and the network.


🔹 2. #Core #Network #Nodes

These nodes handle authentication, mobility, session management, and data routing.

#In #4G (#EPC):

- MME – Mobility & authentication control
- SGW – User data routing within the network
- PGW – Gateway to external IP networks (Internet)

#In #5G (#5GC):

- AMF – Access & mobility management
- SMF – Session management
- UPF – User data forwarding
- AUSF / UDM – Authentication & subscriber data management


🔹 3. #Edge #Nodes (#MEC – #Multi-#access #Edge #Computing)

These nodes bring computation closer to users:

- Reduce latency significantly
- Enable real-time applications (AR/VR, IoT, autonomous systems)
- Improve overall network responsiveness

🔹 4. #Transport & #Aggregation #Nodes

These nodes connect RAN to the Core Network:

- Fiber optics, microwave, or satellite links
- Routers and switches for data aggregation
- Ensure high-capacity and reliable data transport

🔹 5. #Virtual & #Cloud #Nodes

Modern networks are increasingly virtualized:

- VNFs (Virtual Network Functions)
- CNFs (Cloud-Native Functions)
- SDN-controlled network intelligence

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#Evolution #of #Telecom #Sites #from 2G to 5G

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#Types #of #Network #Nodes #in #Modern #Telecommunications (#4G / #5G #Era)

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#What #Does “#Frequency” #Really #Mean #in #Telecom?
Every time you make a call, stream a video, or join an online meeting…
your data travels through radio waves

But here’s the key insight: Not all frequencies behave the same.

🔹#Low #Frequencies (700–900 MHz)
•Travel long distances
•Better building penetration
•Ideal for rural areas & indoor coverage

🔹#Mid #Frequencies (1800–2100 MHz)
• Balanced coverage & speed
•Common in cities and towns
•Great for everyday mobile usage

🔹 #High #Frequencies (2600–3500 MHz)
• Faster speeds
• Higher capacity (more users)
• Shorter range

#n Simple #Words:
• Low Frequency = Better Coverage
•High Frequency = Higher Speed

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Taiz Academy For Telecommunication

Apr 29, 2026, 02:14 AM

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#Types #of #Telecom #Towers
Here are the major types:
🔹 #GBT – Ground Based Tower
🔹#GBM – Ground Based Monopole
🔹 #RTT – Roof Top Tower
🔹 #RTP – Roof Top Pole
🔹 #COW – Cell on Wheels
🔹 #IBS – In-Building Solution

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

https://whatsapp.com/channel/0029VaQBdgG2UPB9quixy602

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

#3 #ways #to #make a #phone #call #over #the #internet

Not all “internet calls” are the same. Let me break down VoLTE, VoIP, and VoWiFi – when to use each, and a real example.

1️⃣ #VoLTE (#Voice #over #LTE)

#What #it #is:
Your voice travels over the 4G/5G mobile data network as high‑priority packets. No fallback to 2G/3G.

#When #to #use #it:
Whenever you make a regular phone call (using your normal dialer) and you have good 4G/5G signal.

#Example:
You call a customer service hotline from your street. Your phone stays on “4G” during the call, you hear HD voice, and you can check your email at the same time.

2️⃣ #VoIP (#Voice #over #IP)

#What #it #is:
Your voice is sent as data packets over any internet connection (Wi‑Fi, mobile data, or cable) using an app like WhatsApp, Skype, or Zoom. Your phone number is not required – only an account.

#When #to #use #it:
When you want free or very cheap international calls between users of the same app, or when you need video calling.

#Example:
You are in a café with Wi‑Fi. You open WhatsApp and call your friend in another country – no charges, just the Wi‑Fi you’re already using.

3️⃣ #VoWiFi (#Voice #over #Wi‑Fi /# Wi‑Fi #Calling)

#What #it #is:
A carrier‑provided service that lets you make regular phone calls (using your normal dialer and your SIM card’s phone number) over a Wi‑Fi network when cellular signal is weak.

#When #to #use #it:
When you are in a basement, elevator, or rural building with no mobile signal but good Wi‑Fi.

#Example:
You are in a hotel room with zero bars of 4G. You turn on Wi‑Fi, and your phone automatically switches to “Wi‑Fi Calling”. You call reception using your normal phone dialer – it works perfectly, and the call is billed from your regular minutes.

#Quick #Comparison #Table

Technology Network Uses your phone number? Requires SIM? Example app / feature
VoLTE 4G/5G mobile data Yes Yes Native phone dialer (HD call)
VoIP Any internet (Wi‑Fi, 4G/5G, cable) No (account ID) No WhatsApp, Skype, Zoom
VoWiFi Wi‑Fi (carrier‑managed) Yes Yes “Wi‑Fi Calling” in phone settings

Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

https://whatsapp.com/channel/0029VaQBdgG2UPB9quixy602

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

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#3 #ways #to #make a #phone #call #over #the #internet

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

#𝗠𝗜𝗠𝗢 #𝘃𝘀 #𝗠𝗮𝘀𝘀𝗶𝘃𝗲 #𝗠𝗜𝗠𝗢

As mobile data demand keeps growing, networks need smarter ways to deliver higher speeds, better coverage, and improved capacity. Two important technologies that help achieve this are MIMO and Massive MIMO.

🔹 #𝗪𝗵𝗮𝘁 #𝗶𝘀 #𝗠𝗜𝗠𝗢?

MIMO stands for Multiple Input Multiple Output.

It is a wireless communication technology that uses multiple antennas at both the transmitter and receiver to send and receive multiple data streams simultaneously.

Instead of transmitting data through a single antenna, MIMO allows the base station to transmit multiple parallel data streams, which significantly increases network throughput.

𝙁𝙤𝙧 𝙚𝙭𝙖𝙢𝙥𝙡𝙚:

• 2×2 MIMO → 2 transmitting antennas and 2 receiving antennas
• 4×4 MIMO → 4 transmitting antennas and 4 receiving antennas

More antennas mean more parallel data streams, which leads to higher data speeds and improved spectral efficiency.

🔹 #𝗪𝗵𝗮𝘁 #𝗶𝘀 #𝗠𝗮𝘀𝘀𝗶𝘃𝗲 #𝗠𝗜𝗠𝗢?

Massive MIMO is an advanced evolution of MIMO used primarily in 5G networks.

Instead of using just a few antennas, Massive MIMO systems deploy large antenna arrays (32, 64, or even more antennas) at the base station. These antennas work together to serve multiple users simultaneously.

One of the key technologies enabling Massive MIMO is Beamforming, where the base station focuses radio signals directly toward the user instead of broadcasting them in all directions.

This improves signal quality, reduces interference, and significantly increases network capacity.

🔹 #𝙒𝙝𝙮 #𝙏𝙝𝙞𝙨 #𝙈𝙖𝙩𝙩𝙚𝙧𝙨 #𝙛𝙤𝙧 #𝙈𝙤𝙙𝙚𝙧𝙣 #𝙉𝙚𝙩𝙬𝙤𝙧𝙠𝙨

MIMO and Massive MIMO play a crucial role in improving:

✔️ Network capacity
✔️ Data throughput
✔️ Spectral efficiency
✔️ User experience

Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

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#𝗩𝗼𝗟𝗧𝗘 #𝘃𝘀 #𝗖𝗦𝗙𝗕

Many engineers still deal with both in live networks.
But the difference is not just “LTE vs 3G”.
It’s a completely different call handling approach.

#𝗞𝗲𝘆 #𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝗰𝗲𝘀

#𝗩𝗼𝗟𝗧𝗘
• Voice over IP (IMS-based)
• No fallback required
• Dedicated bearer (QCI 1)
• Faster call setup
• HD voice quality

#𝗖𝗦𝗙𝗕 (#Circuit #Switched #Fallback)
• UE falls back to 3G / 2G
• Uses circuit-switched voice
• Longer call setup time
• No LTE data during call (in many cases)
• Lower voice quality

#𝗪𝗵𝘆 #𝗶𝘁 #𝗺𝗮𝘁𝘁𝗲𝗿𝘀
CSFB is a transition solution.
VoLTE is the real long-term architecture.

And in 5G evolution:
#CSFB disappears
#VoLTE evolves into VoNR

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

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BBU / Router
│
│ Ethernet
│
RTN IDU (RTN980 / RTN950)
│
│ ISM8 Card
│
│ IF Cable
│
ODU (Microwave Radio)
│
│ Waveguide
│
MW Antenna
│
Air Link
│
Remote Site

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

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#𝗠𝗜𝗠𝗢 #𝘃𝘀 #𝗠𝗮𝘀𝘀𝗶𝘃𝗲 #𝗠𝗜𝗠𝗢

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

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#𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴 #𝗗𝗟 #𝗦𝗽𝗲𝗰𝘁𝗿𝗮𝗹 #𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 (#𝗗𝗟 #𝗦𝗘) #𝗶𝗻 #𝟰𝗚 #𝗟𝗧𝗘

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Taiz Academy For Telecommunication

Apr 15, 2026, 04:29 AM

#𝗨𝗻𝗱𝗲𝗿𝘀𝘁𝗮𝗻𝗱𝗶𝗻𝗴 #𝗗𝗟 #𝗦𝗽𝗲𝗰𝘁𝗿𝗮𝗹 #𝗘𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝘆 (#𝗗𝗟 #𝗦𝗘) #𝗶𝗻 #𝟰𝗚 #𝗟𝗧𝗘

In LTE networks, spectrum is one of the most valuable assets. The real question is not just how much bandwidth you have — but how efficiently you are using it.

#𝗪𝗵𝗮𝘁 #𝗶𝘀 #𝗗𝗟 #𝗦𝗘?

Downlink Spectral Efficiency (DL SE) measures how efficiently data is transmitted over the available bandwidth from the eNodeB to users. It is calculated as:

DL SE = Throughput / Bandwidth
#𝙒𝙝𝙮 #𝙙𝙤𝙚𝙨 #𝙞𝙩 #𝙢𝙖𝙩𝙩𝙚𝙧?

A higher DL SE means:

• More data delivered using the same spectrum
• Better network capacity
• Improved user experience without additional spectrum cost

#𝙒𝙝𝙖𝙩 #𝙞𝙢𝙥𝙖𝙘𝙩𝙨 #𝘿𝙇 #𝙎𝙀?

• Modulation & Coding (higher QAM improves efficiency)
• SINR (better radio conditions boost performance)
• MIMO layers (more spatial streams = higher throughput)
• Scheduling efficiency (optimal resource allocation)
• Interference levels (major limiting factor in dense networks)

#Field #Insight:

Even with strong RSRP, low DL SE often points toward interference or congestion. Monitoring DL SE helps engineers quickly identify inefficiencies in network performance.

#In a well-optimized LTE network, DL SE values above 3 bps/Hz indicate strong performance.

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