The Small Cell Forum (SCF) has released a new PHY API for 5G to foster a more competitive and interoperable ecosystem for small cell hardware, software, and equipment vendors.
This open interface links the physical layer (PHY) to the MAC layer, enabling different vendors to build compatible components and solutions. The PHY API is the result of a collaborative effort across the small cell industry, with contributions from companies including Intel and Qualcomm Technologies.
SCF’s initiative aims to promote competition and innovation among suppliers of platform hardware, platform software, and application software by offering a common API. This approach encourages component interchangeability, allowing system vendors to adopt the latest silicon and software advancements with fewer integration barriers and reduced need for custom re-engineering.
In a recent Telecoms piece, Automation Consultants’ Francis Miers noted that the deployment of small cells in heterogeneous networks (HetNets) has expanded significantly in recent years, driven in part by the need to provide indoor coverage in public spaces, which today account for approximately 80% of mobile data traffic.
Miers emphasized that small cells and HetNets are central to modern mobile communications. However, while traditional self-organising networks (SONs) offer self-healing capabilities, they do not always perform effectively in HetNet environments. As a result, operators cannot rely solely on standard SON approaches and must implement mechanisms to detect cell failures so networks can respond and maintain service quality.
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