Solving the data challenge and improving coverage with small cells.
The next performance and capacity leap in cellular communications will be achieved through the use of small cells. Qualcomm Research is driving innovation in small cell technology with a suite of Self-Organizing Network (SON) features under the UltraSON™ brand. For residential small cells, these features enable unplanned, plug-and-play deployment. For enterprise and metro small cells, these features simplify deployment process significantly and reduce deployment cost. In all deployment scenarios, UltraSON ensures robust mobility and reliable user experience. Small cells powered by UltraSON technology improve coverage and significantly increase capacity. When deployed in high density with additional spectrum, it is possible to increase network capacity beyond 1000x of today’s macro-only deployment.
Qualcomm Research has completed multiple small cell network trials to demonstrate that UltraSON enables unplanned small cells deployment and significant capacity gains can be achieved. These trials covered various deployment scenarios (residential, enterprise and metro/picos) from medium to very high density in different regions and multiple operators were involved. Gains demonstrated from these trials include 44x capacity gains, up to 90% reduction in handover frequency and 60% improvement in cell-edge throughput.
The LTE UltraSON suite consists of Self-Configuration, Backhaul Aware Operation, Mobility Management, and Dynamic Resource and Tx Power Management feature sets. These features enable different small cell deployments.
To validate UltraSON technology and help our OEM’s with their commercialization efforts, Qualcomm Research has deployed multiple networks of LTE small cells throughout our San Diego campus. These small cell clusters, powered by UltraSON and deployed at various indoor and outdoor locations, allow us to test our own prototype and our OEM’s platforms under different deployment scenarios.
Making SON architectures and implementations work together.
There exist different SON solutions today, some with centralized architecture and others with distributed architecture. A hybrid architecture combines the scalability and responsiveness of distributed SON (dSON) and the network-wide optimization capability of centralized SON (cSON). In order for cSON and dSON solutions from different providers to work effectively together, Qualcomm is contributing to the standardization activity in Small Cells Forum to define a set of SON API’s. The standard document SCF083 was published in March 2015.
Interworking and validation of SON.
To help operators validate SON implementations and interworking between them, Qualcomm is offering a number of test cases covering important SON features.