TCH Blocking: Traffic Channel is a dedicated channel in a cellular network used for voice and data traffic. TCH blocking occurs when a request for a Traffic Channel cannot be fulfilled due to limited available resources. During peak usage or network congestion, all existing channels may be occupied, resulting in blocked calls or failed connection attempts.
TCH Dropping: TCH dropping happens when an established Traffic Channel connection unexpectedly terminates. This can be caused by several factors, including poor signal quality, interference, hardware or software issues, or network congestion. TCH dropping disrupts ongoing calls or data sessions, leading to frustrating communication interruptions.
Both TCH Blocking and TCH Dropping highlight the challenges faced by mobile networks in providing uninterrupted voice and data services. As users, it’s important to understand these scenarios as they impact our communication reliability.