5G NR RRC message protection
In this chapter we shall see which RRC messages can be sent: 1. RRC messages can be sent Unprotected prior to AS security activation. 2. RRC…
5G NR UE initial access message content
In this previous chapter we learnt about 5G NR initial access process in brief. In this chapter we shall see the important message contents.…
5G NR UE initial access process
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…
5G NR SRB configuration and NAS and RRC message mapping
SRB are used to carry RRC and NAS messages. There are 4 different types of SRB in 5G NR. SRB0: It is used to transmit RRC messages on the…
5G NR: 5G QoS in detail
QoS introduction 5G QoS model is based on QoS flow in 5G. 5G QoS supports both GBR QoS traffic and non-GBR QoS traffic. QoS flow is the finest…
5G NR: 5G Radio Network Temporary Identifier
Radio Network Temporary Identifiers are applicable within the Radio Access Network (RAN). They are allocated by BS and will be used by both UE…
5G NR UE Identities and Network Identities
5G NR UE Identities: 1. C-RNTI: Unique UE identity used to identify UE for RRC Connection and for scheduling. 2. CI-RNTI: It is used of…
5G Identity Exchange between UE and Network
The above diagram shows the identity exchanged between UE and Network. 1. During initial registration UE will encrypt SUPI in SUCI and send it…
5G Identities in detail Part 2
In this chapter we shall learn about: 1. 5G GUTI – 5G Globally Temporary Identifier 2. 5G S TMSI – It is a shorter version of 5G…
5G Identities in detail Part 1
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,…