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Carrier

Carrier
Carrier

Excelwave offers solutions for the congested spectrum and converging technologies.

Spectrum Challenges and Opportunities

In today’s landscape, carrier network spectrum is predominantly allocated under 6GHz, leading to significant crowding. Frequency reallocation has been ongoing for decades and will continue in many countries to optimize spectrum resources for newer technologies. This includes repurposing spectrum from retiring 2G, 3G, and eventually 4G networks, and migrating from analog to digital broadcasting (e.g., the 700MHz band in the U.S.). Additionally, new bands such as 600MHz are being auctioned for carrier networks.

5G networks demand more bandwidth and will integrate sub-6GHz and above-6GHz bands. Spectrum plans for 5G in many countries focus on:

  • 24.25-27.5GHz
  • 31.8-33.4GHz
  • 40.5-43.5GHz
  • 3.4-3.8GHz
  • Various sub-6GHz bands, including 700MHz for area and in-building coverage

Emerging Applications and Challenges

The proliferation of smart home, smart city, self-driving applications from IoT, ITS, and other emerging technologies introduces several challenges:

  • Performance susceptibility to interference
  • Spectrum overcrowding
  • Co-sited radio-based sensors
  • Frequency conflicts during spectrum reallocation

Filtration before radio transmission and reception is crucial to maintain a clear spectrum environment. Excelwave offers a wide range of custom filter products covering the 30-6000MHz range, extending beyond 6000MHz through custom design.

Evolving and Converging Technologies

From 2G, 3G, and 4G LTE to 4.5G LTE-A and 5G, communication technologies are evolving and converging rapidly. Technologies like 802.11ac, 802.11ad, 802.11ax, LTE, and LTE-A will coexist for a while. With LTE-U advancements, LTE and WiFi will aggregate alongside spectrum integration, resulting in faster connections, seamless services, and higher spectrum and network efficiency.

Smaller, More Integrable Systems

As technology progresses, wireless network cells are becoming smaller—from macro, micro, and pico to femto cells. This requires smaller antennas and lower transmission power, making transceivers and antennas more integrable. DAS and other cellular architectures will also converge.

Innovative MIMO Antenna Technologies

MIMO antennas are widely used in 4G networks, and massive MIMO and 3D-MIMO will be major antenna solutions in 5G systems. Excelwave is at the forefront of innovating MIMO antenna technologies for 5G networks.

For more information, please contact info@excelwavetechnologies.com.