LTE UE Operation

Subject: 4G LTE
Category: Radio
Duration: 1 day

Course outline:

Introduction to Evolved Packet System (EPS)

● Evolution steps of the 3GPP systems, the goals for LTE
● LTE bandwidths, bit rates and UE categories
● Summary of radio access techniques

EPS Network Architecture and Interfaces

● E-UTRA and Evolved Packet Core network architecture
● Nodes: UE, eNB, SGW, MME, PGW, PCRF
● Interfaces: Uu, X2, S1, S11, S5, Gx, S6a, SGi, Rx
● IP connectivity, user plane and control plane
● Access Stratum signaling and Non-Access Stratum signaling

Signal Processing for the User Equipment

● LTE UE categories
● Architecture of the UE transmitter and receiver including processing blocks and signals
● Uplink channel architecture
● UE-originated signals and PHY channels: DRS, SRS, PUCCH, PUSCH, PRACH

UE in EPC

● NAS protocols (EMM and ESM)
● UE states (LTE-idle, LTE-active, LTE-detached)
● Subscriber identities and their relations (IMEI, IMSI, GUTI, S-TMSI, RNTIs)
● IMS network and nodes (CSCF, AAA, DNS, AS, HSS)
● Call establishment via IMS

Basic UE Procedures

● Network Attach and Detach
● Call setup (Dedicated bearer establishment)

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