In the fast-paced world of telecommunications, the transition from 4G to 5G has brought about a host of changes, with both persistent challenges and emerging issues. In this blog post, we discuss the complexities of interference in 5G networks, exploring a combination of old and new problems that network operators and technicians face.
Old Problems, New Challenges
Traditionally, external interference caused by boosters and jammers has been a concern in the telecommunications industry. Passive Intermodulation (PIM) has also been a lingering issue, notorious for its costly and never-ending nature. Even in the era of 5G, remnants of 4G legacy still influence the network, requiring reliance on the 4G infrastructure for signaling in 5G networks.
The challenge extends beyond the familiar territory of PIM
It involves distinguishing between internally produced PIM within the cell and the system itself, and external PIM, more prevalent in locations like rooftops surrounded by metal structures. This distinction is crucial as it significantly impacts the installation process, adding a layer of complexity and cost for those operating multiple instruments.
The introduction of 5G has brought new dimensions to interference, particularly with the densification of antennas. More antennas and sectors surround the landscape, leading to interference issues stemming from improper timing and synchronization between these antenna sectors. This unique challenge, specific to 5G Distributed, Dense, and Dynamic (DDD) technology, results in RF interference affecting both the network itself and neighboring networks.
Tackling Three Interference Fronts with One Solution
Addressing these multifaceted interference challenges requires innovative solutions. Fortunately, there is good news on the horizon.
The significance of this solution lies in its ability to streamline the interference management process for mobile operators. It facilitates the detection and differentiation of interference sources, offering a unified approach for handling external interference, PIM, and synchronization challenges. In a wireless world flooded with RF signals from Wi-Fi, Bluetooth, and various radios, having a consolidated solution becomes paramount for operational efficiency.
VIAVI’s solution incorporates real-time spectrum analysis, providing quick insights into interference situations. Additionally, the use of directional antennas enhances the ability to pinpoint external interference sources efficiently. The VIAVI OneAdvisor 800 is a versatile tool, providing a unified approach to address external interference, PIM, and synchronization issues. As the telecommunications industry continues to evolve, such comprehensive solutions become instrumental in ensuring the seamless operation of 5G networks.
TestEquity are an approved UK partner for VIAVI
HUNTING DOWN RF INTERFERENCE
Content Source: https://blog.viavisolutions.com/2023/11/17/hunting-down-rf-interference/
