Question: In a mobile device, which of the following entities is responsible for handling mobile originating short message transfer in a 5G network?
Option 1: SMC-GP entity
Option 2: SMC-EP entity
Option 3: SMS-C (Short Message Service Center)
Option 4: SMC-5G entity
Explanation: In the context of mobile networks, specifically for 5G infrastructure, the SMC-5G entity is designated to handle mobile originating short message transfers. This is a specialized component within a 5GS Mobile Station (MS), tailored for the unique requirements and protocols of 5G networks. The SMC-GP entity is more commonly associated with GPRS in older network architectures, while the SMC-EP entity relates to EPS in 4G networks. The SMS-C is a network element but not within the mobile device itself, making it less directly involved in the originating transfer process from the device’s perspective.