5G NR

Below image is taken from TS 38.300 Legend: USIM: Universal Subscriber Identity Module ME: Mobile Equipment SEAF: SEcurity Anchor Function…

If the image is not visible clearly, open the image in new tab and zoom in the image. PDU Session Release procedure is used to release all the…

If the image is not visible clearly, open the image in new tab and zoom in the image. 1. PDU Session Establishment Request UE->AMF NAS…

If the image is not visible clearly, open the image in new tab and zoom in the image. This procedure is used when the network needs signalling…

If the image is not visible clearly, open the image in new tab and zoom in the image. UE in CM-IDLE mode will request service request…

If the image is not visible clearly, open the image in new tab and zoom in the image. 1: UDM -> AMF -> [Conditional] If the UDM wants to…

If the image is not visible clearly, open the image in new tab and zoom in the image. There are 2 types of deregistration requests: 1. UE to…

If the image is not visible clearly, open the image in new tab and zoom in the image. Step 1: Registration Request UE –> RAN Step 2:…

If the image is not visible clearly, open the image in new tab and zoom in the image. UE needs to register to the network to get the services…

In this chapter we shall see the message exchanges between UE, RAN and AMF. 1. When a UE is switched on, it will scan the available to perform…