Telecom Topic Discussion

Common Question Answer for Telecom  1. Why Don’t All Phones Ring at the Same Time? In a telecommunication network, each device is uniquely identified by a Temporary Mobile Subscriber Identity (TMSI) or International Mobile Subscriber Identity (IMSI) , which is assigned during network attachment. When there is an incoming call or notification, the network performs a paging process : Paging Message: The network sends a paging signal to the cells within the user’s last known Tracking Area (TA) . This message contains the TMSI or IMSI of the target device. Paging Occasion and Paging Frame: Each phone monitors the Paging Channel (PCH) during specific intervals defined by its Paging Occasion (PO). This scheduling reduces power consumption and ensures only the intended phone responds. Selective Response: The device with a matching TMSI or IMSI replies to the paging request, while others ignore it. This process ensures only the target phone rings, and others remain unaffected. 2. What...