- Plink traffic is growing faster than downlink in modern 5G uses, creating critical performance challenges for high-traffic regions and advanced applications.
- Discover how Ericsson Radio 4890 with 4T8R delivers measurable uplink improvements and lays the foundation for high performing networks.
Meeting uplink demands in modern 5G networks
As uplink traffic in 5G networks expands at an unprecedented pace, driven by use cases such as XR applications, drone operations, and IoT, network operators are faced with solving critical performance bottlenecks that can jeopardize user experience and efficiency. This post delves into Ericsson’s industry-leading Radio 4890 with 4T8R technology — an advanced solution proven to enhance uplink throughput and spectral efficiency while maintaining network stability. Ericsson’s leadership in designing scalable and intelligent networks ensures operators can meet today’s high demands and seamlessly prepare for the evolution toward 6G.
The rising tide of uplink traffic
Mobile data usage is skyrocketing across urban and industrial environments, profoundly altering the landscape for network operators. Increased reliance on uplink-heavy applications, such as live streaming and autonomous systems, has caused uplink traffic growth to exceed that of downlink. For instance, uplink traffic has grown by 102% during the last five Super Bowls, far surpassing the 47% growth in overall traffic. Fixed Wireless Access (FWA) users alone generate 10–100+GB of uplink data monthly, illustrating the significant challenge for mobile network operators.
Unfortunately, traditional RAN architectures primarily optimized for downlink performance cannot meet these demands effectively. Solutions like deploying additional spectrum or expanding sites involve prohibitive costs and logistical challenges. Highly scalable and efficient technologies are required to bridge the gap and pave the way for seamless connectivity in modern use environments.
4T8R technology as a breakthrough
Ericsson’s Radio 4890 introduces a practical solution for improving uplink performance in mid-band 5G networks through its 4T8R configuration—four transmit and eight receive chains.
The additional receive chains improve uplink signal reception and diversity gain. This allows the base station to better capture and decode weaker signals from user equipment, particularly in challenging radio conditions or at the cell edge. As a result, uplink signal quality improves, enabling higher throughput and better spectral efficiency.
Field measurements indicate that 4T8R configurations can deliver uplink throughput improvements ranging from 24% to 116%, along with spectral efficiency gains of up to 37% in optimized deployments. For operators, this translates into the ability to support significantly more uplink-heavy applications within the same spectrum footprint while maintaining stable network performance.
Compared to alternatives such as deploying additional massive MIMO radios or adding new spectrum layers, compact 4T8R radios provide a cost-efficient approach to strengthening uplink performance. This ensures operators can deliver reliable, efficient network performance while addressing customer requirements for higher upload capabilities
Real-world results of Ericsson Radio 4890
Real-world testing demonstrates the capabilities of the Ericsson Radio 4890 with 4T8R in addressing uplink demands across diverse mid-band deployment scenarios. In recent 5G trials conducted with global operators, uplink throughput increased by as much as 116%, while spectral efficiency gains of 37% enabled significantly more data transmission per Hz without impacting network accessibility or performance metrics such as downlink key performance indicators.
These advancements are especially beneficial in high-traffic urban areas, smart factories, and industrial environments where stable and reliable connections are critical to operational efficiency. Compatible with varied mid-band deployments, the Radio 4890’s passive cooling technology and compact design allow operators to scale capacity cost-effectively while minimizing size and energy consumption requirements. Practical deployment recommendations, including prioritizing enterprise zones and activating 8RX through available software functionalities, make it easier for operators to achieve measurable results.
Redefining uplink performance for a connected future
The Ericsson Radio 4890 with 4T8R represents a transformative approach to solving uplink performance challenges in 5G mid-band networks. By leveraging field-proven uplink throughput and efficiency gains, the solution empowers network operators to reliably meet the growing demands of high-traffic zones and uplink-intensive applications.
For mobile network operators, this advancement translates to greater uplink reliability, improved user experience, and scalable solutions that address both enterprise and consumer needs. The field-tested stability of 4T8R technology ensures robust deployment capabilities with minimal trade-offs.
As the industry progresses towards 6G, technologies like Ericsson Radio 4890 lay the foundation for intelligent, adaptable, and high-performing networks that connect societies sustainably. Together with ecosystem collaboration, operators can reshape the uplink performance frontier, delivering the connectivity needed to drive innovation and growth worldwide.
Source : www.ericsson.com
