Service Description Radio network design involves planning the layout and configuration of radio access and transmission networks to optimize coverage, capacity, and quality, while transmission network design focuses on ensuring robust interconnections between sites through reliable links and proper resource allocation. DC power design in telecom is critical for stable operations, utilizing -48V DC systems with rectifiers and battery backups to provide uninterruptible power, particularly for 5G and mission-critical infrastructure. Radio network optimization is an ongoing process that uses key performance indicators (KPIs) such as accessibility, retainability, and traffic channel congestion, with pre-optimization focusing on initial parameter tuning (like antenna tilt and azimuth) and post-optimization leveraging real network KPI analytics and statistics to improve user experience and network efficiency.