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In this chapter we shall learn about 5G NR initial access process in brief. 1. UE sends RRC connection request message to gNB-DU. 2. gNB-DU will assign a C-RNTI to the UE and will include corresponding low level configuration for UE, will be included in F1AP …
UE in 5G network will have many identifiers to identify itself uniquely over the network. Below are some of them. In the next series of post, we shall discuss more on other identifiers. Brief of Identities present in 5G 1. SUPI – …
5G AKA procedure is required for UE to access the Network Services. UE needs to be authenticated before it is connected to the network. In 5G NR, IMSI has been replaced with SUCI (Subscription Permanent Identifier). In LTE there were few instances where IMSI was sent …
Below image is taken from TS 38.300 Legend: USIM: Universal Subscriber Identity Module ME: Mobile Equipment SEAF: SEcurity Anchor Function AUSF: AUthentication Function ARPF: Authentication credential Repository and Processing Function,it keeps the authentication credentials. k: Key CK: …
