BARCELONA, Spain, March 5, 2026 /PRNewswire/ -- During MWC Barcelona 2026, Huawei and SOLUM jointly released the Shop-in-Shop (SiS) Smart Converged Network Solution. This solution draws on a unified retail infrastructure platform, integrating digital infrastructure and electronic shelf labels (ESLs). This innovative approach creates a scalable, cost-effective architecture that allows global retailers to set up simplified and efficient store networks.