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4G and 5G cellular telecommunication tower. Telecommunication equipment for a 5G radio net

Cellular Networks

The Way We Communicate

In the modern digital age, staying connected is more than a convenience—it's a necessity. From remote work and virtual healthcare to smart homes and autonomous vehicles, our world is increasingly reliant on real-time data exchange. At the center of this transformation is one critical technology: cellular networks. As mobile connectivity becomes more advanced, reliable, and widespread, it's clear that cellular networks are not just part of our communication infrastructure—they are the future of communication. The SIPI technical team has been working in the cellular network technology space since the late 1990s. Back in the early 2000s we focused on handsets. Over the years we expanded our team and lab capabilities to perform research on the entire cellular network ecosystem from femtocells to MIMO to beamforming. 

 

Cellular networks are far more than just cell towers and phones—they’re highly sophisticated ecosystems combining wireless communication, data transport, cloud computing, and security. As technologies like 5G and soon 6G continue to evolve, the complexity and capability of these networks will only grow, enabling a hyper-connected world where virtually every device, sensor, and system can communicate in real time. We are fortunate to have subject matter experts that participated in developing many of the standards used today. The following are technology areas we are prepared to support:

 

1. Radio Access Technology (RAT)

  • 2G (GSM, CDMA)

  • 3G (UMTS, CDMA2000)

  • 4G (LTE)

  • 5G (NR - New Radio)
     

2. Base Stations and Cell Towers

  • Small Cells

  • Massive MIMO 

  • Beamforming
     

3. Backhaul and Transport Network

  • Fiber optics including SFP

  • Microwave link

  • Ethernet and IP/MPLS
     

4. Mobile Core Network

  • Evolved Packet Core (EPC)

  • 5G Core (5GC)

  • IMS (IP Multimedia Subsystem)

  • HSS/UDM

  • SGW/PGW or UPF

  • MME/AMF

 

5. Spectrum and Frequency Management

  • Carrier Aggregation

  • Dynamic Spectrum Sharing (DSS)
     

6. Security Technologies

  • SIM/USIM/Embedded SIM (eSIM)

  • IPsec and TLS

  • Network slicing isolation
     

7. Edge and Cloud Computing

  • Mobile Edge Computing (MEC)

  • Cloud-native architecture
     

8. Network Management and Orchestration

  • Self-Organizing Networks (SON)

  • NFV (Network Functions Virtualization)

  • SDN (Software-Defined Networking): 

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