RxLev, or Received Level, is a measurement used in telecommunications to indicate the strength of a received radio signal at a mobile device or base station. It is typically expressed in decibels (dBm) and plays a crucial role in assessing the quality of a wireless connection. Higher RxLev values generally indicate better signal quality, which can lead to improved call quality and data transmission. In mobile networks, maintaining an adequate RxLev is essential for reliable service and coverage.