LTE for Mobile Devices (2 days or 12 hours)
The deployment of OFDM based networks brings many new challenges to mobile device developers as they design, implement and test LTE device functionality. This course provides those who will be facing these challenges with in-depth analysis of LTE RRM such as radio bearer control, admission and authentication, mobility, interference and MIMO. Those attending should have a good knowledge of LTE as would be gained by attending mpirical’s LTE System Engineering course.
Who Should Attend
Engineers, Research and Development and other Technical Staff involved with the development, testing and deployment of LTE terminal devices.
Pre - Learning
Pre-Learning is provided to prime those attending the instructor led phase. Each lesson is based on an interactive online format and should take about 30 minutes to complete. The pre-Learning lessons are:
- Test of Understanding - Try the online check to see how much you know.
- Introduction to LTE.
- LTE Network Architecture.
- OFDM Principles (LTE).
- IP Convergence.
Course Outline
Divided into 8 sections, the topics covered will include:
Section 1: E-UTRA Interface and States (1 hour)
- The E-UTRA Interface, Stratums, NAS Control Plane, NAS User Plane, NAS Messages, EMM Messages and ESM Messages.
- LTE States, EPS Mobility Management States, EMM States in the UE, EMM States in the MME, EPS Connection Management States.
- The E-UTRA Protocols, Radio Resource Control, RRC Messages, RRC States, Establishment of an RRC Connection.
- E-UTRA and LTE Security - authentication, algorithms and keys, ciphering and integrity.
Section 2: E-UTRA PDCP, RLC and MAC (1 hour)
- The E-UTRA Protocol Stack, PDCP, PDCP services and functions, PDCP profiles and compression standards, PDCP headers and frame formats.
- RLC, RLC Transparent Mode, RLC Unacknowledged Mode and RLC Acknowledged Mode, RLC PDUs, the TMD PDU, UMD PDU, AMD PDU, AMD Segment PDU and the RLC Status PDU.
- MAC functions and operation.
- Logical Channels - BCCH, PCCH, CCCH, DCCH, DTCH.
- Transport Channels - BCH, DL-SCH, PCH, UL-SCH, RACH.
- Mapping Logical Channels into Transport Channels - RNTI Identities, random access process, non-contention based random access procedure.
Section 3: E-UTRA Physical Layer (3 hours)
- LTE generic frame structure, Type 1 Radio Frames, slots and subframes, Type 2 Radio Frames, slots and subframes, frequency bands, carrier frequencies and EARFCN.
- Channel bandwidths and channel bandwidths per operating band.
- Resource Grid and Resource Blocks, downlink PRB parameters, uplink PRB parameters, VRB and DVRB.
- The LTE downlink physical channels - PBCH, PCFICH, PDCCH, PHICH, Primary Synchronization Signal, Secondary Synchronization Signal, downlink reference signals and cell specific reference signals for MIMO operation.
- The LTE uplink physical channels - PRACH, PUCCH, PUSCH, uplink data transmission, uplink reference signals and demodulation reference signals.
- Downlink and Uplink Timing - Timing Relationship and Timing Advance.
HARQ Operation.
- Transmitter and Receiver Requirements.
- Transmission Modes, Transmit Diversity, MIMO Modes, SU-MIMO, MU-MIMO, Spatial Multiplexing 2x2 and 4x4.
Section 4: LTE Procedures (2 hours)
- LTE initial procedures, power on, cell search, location of downlink synchronization signals, Primary Synchronization Signal and Secondary Synchronization Signal, Broadcast Information and scheduling.
- PLMN selection and Initial Cell Selection algorithms, Cell Reselection algorithms.
- Random Access, RRC Connection process, Initial Attach, establishing the Dedicated Bearer.
- DRX and Paging Cycles.
- Radio Link Monitoring - downlink and uplink power control, PUSCH, PUCCH and PRACH power calculations.
- E-UTRA Measurements, RSSI, RSRP, RSRQ.
- Automatic Neighbour Relationship procedures.
Section 5: Security in LTE (1 hour)
- Integrity and Encryption - SNOW 3G, AES.
- AAA Procedures.
- EPS AKA and Key Hierarchy.
- IPSec ESP.
- Key distribution and mobility.
Section 6: LTE Mobility (2 hours)
- LTE mobility, LTE cell planning, capacity and coverage planning, frequency deployment options.
- Soft Frequency Re-use Options.
- Mobility functional architecture, role of the eNB and MME, Tracking Areas.
- Idle Mode procedures, SIB 1 to SIB 6, LTE Idle Mode monitoring requirements.
- Cell reselection, intra-frequency measurements, inter-frequency and inter-RAT measurements, high and medium mobility states, ranking of cells, Tracking Area Update.
- Mobility in the LTE Active State, measurements and gap configurations, event triggers, timing, the handover process.
- EPC mobility (Relocation), Mobile IP in LTE, Proxy Mobile IP operation.
- Femto cells, scenarios and assumptions, home eNB selection.
Section 7: LTE Interworking (1 hour)
- Interworking considerations, network discovery and selection, network identities, IP Address allocation, authentication, security and QoS continuity.
- 3GPP interworking, E-UTRAN to UTRAN / GERAN RAU procedure, E-UTRAN to UTRAN / GERAN handover procedure.
- Non 3GPP interworking, trusted and un-trusted non 3GPP IP access networks, network based and host based mobility for non 3GPP networks, handover from 3GPP access to trusted non 3GPP access, handover from 3GPP access to un-trusted non 3GPP access using PMIP.
- Roaming.
Section 8: MBMS Delivery (1 hour)
- Multicast and Broadcast Services, Mobile TV, audio and video, multi user applications.
- Economics of unicast and broadcast network deployments.
- Multimedia Broadcast Multicast Service, MBMS Architecture, MCE (Multi-cell/multicast Coordination Entity), MBMS GW and the Broadcast Multicast Service Centre.
- RAN Requirements, MBMS Terminals, MBMS Modes, Broadcast Mode, Multicast Mode.
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