📶 HCIP Level · Professional Certification

HCIP-LTE Certification (H31-421)

Build professional-level expertise in LTE networks. This certification covers LTE air interface principles (OFDMA/SC-FDMA, HARQ, MIMO), EPS end-to-end IP protocol analysis, antenna & feeder fault troubleshooting (PIM, VSWR, TMA), eNodeB reconfiguration, and LTE E2E signalling procedures.

LTE Air Interface OFDMA/SC-FDMA HARQ & MIMO IP Protocol Analysis Antenna & Feeder eNodeB Reconfig HCIP Professional

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LTE Air InterfaceOFDMA/SC-FDMA, HARQ, MIMO & radio protocols

EPS IP Protocol AnalysisO&M/CP/UP traces & throughput analysis

Antenna & Feeder FaultsPIM, VSWR, TMA fault analysis & troubleshooting

eNodeB Reconfiguration & SignallingData reconfig & E2E LTE signalling procedures

8 hrs

Lab Duration

Practical

Hands-On Exam

60%

Pass Score

HCIE

Expert Level

Market Trending

LTE Network Skills Remain in High Global Demand

Despite 5G rollouts, LTE remains the dominant mobile technology globally. Professional-level LTE engineers for O&M, troubleshooting, and reconfiguration remain in persistent demand.

Hot

5B+

Active LTE Subscribers Worldwide

LTE remains the primary mobile connectivity technology globally, with over 5 billion active subscriptions requiring sustained investment in skilled LTE O&M and troubleshooting engineers.

30,000+

Open LTE Network Engineer Roles

Telecom operators across Asia, Middle East, and Africa are actively hiring HCIP-LTE certified engineers for professional-level eNodeB O&M, reconfiguration, and signalling analysis roles.

Hot

4G/5G NSA

LTE as 5G Anchor Makes Skills Critical

In 5G NSA deployments, LTE serves as the control plane anchor. Engineers who deeply understand LTE air interface, HARQ, MIMO, and signalling are essential for stable 5G NSA networks.

+35%

Salary Premium for HCIP-LTE Engineers

Professional-level LTE certified engineers command significantly higher compensation at telecom operators and Huawei partners, particularly in RAN O&M, reconfiguration, and fault analysis roles.

Course Content

Complete H31-421 Curriculum

Click any module to expand and explore the lab topics covered in detail.

LTE Air Interface

13 Topics

The evolution of cellular networks and 3GPP release

Radio interface techniques

OFDMA/SC-FDMA principle, signal generation and processing

Radio interface protocols

Time-domain and frequency-domain structure in UL and DL for FDD and TDD mode

Channel structure of the radio interface

Uplink/downlink transmission technique

The paging procedure

The cell search procedure

The random access procedure

Uplink/downlink power controls

HARQ

Concepts of layers, channel rank, spatial multiplexing, TX diversity, beamforming, SU-MIMO and MU-MIMO

EPS End to End IP Protocol Analysis

10 Topics

End to end IP protocol architecture

Method/tools on collecting IP layer message

Trace analysis: O&M trace

Control Plane trace

User Plane trace

Factors affecting LTE throughput

Analysis on throughput problem - Low throughput

Analysis on throughput problem - Fluctuating Throughput

IP layer message analysis tools and techniques

E2E trace interpretation and reporting

eNodeB LTE Antenna & Feeder System Fault Analysis and Troubleshooting

6 Topics

Faults related to antenna & feeder system

PIM principle and fault analysis

VSWR principle and fault analysis

TMA working principle and power supply

Location by section method in PIM and VSWR troubleshooting

Troubleshooting with help of Huawei U2000 and Web LMT

eNodeB LTE Reconfiguration

4 Topics

Reconfiguration Working Flow

Reconfiguration Tools and Operation

Radio/Device/Transmission Data Reconfiguration

Data Reconfiguration in Typical Scenarios

LTE Protocols and E2E Signaling

5 Topics

The detail signaling procedure of UE access network

The detail signaling procedure of paging

The detail signaling procedure of TAU

The detail signaling procedure of Handover

The detail signaling procedure of detach

Learning Objectives

What You Will Master

This professional certification equips you with comprehensive skills in LTE air interface principles, IP protocol trace analysis, antenna and feeder fault resolution, eNodeB reconfiguration, and end-to-end LTE signalling procedure analysis.

Prerequisites

A general knowledge of cellular systems and radio technology is required before attempting this professional-level certification.

Understand the detailed principles of the LTE air interface including OFDMA/SC-FDMA signal generation

Understand the functions of different layers in the LTE air interface protocol stack

Perform O&M operations on Huawei LTE eNodeB including alarm management and signalling trace

Perform eNodeB advanced troubleshooting using U2000 and Web LMT tools

Perform initial configuration and reconfiguration of Huawei LTE eNodeB

Understand the structure of LTE EPS and functions of EPC components

Understand functions and procedures of X2/S1 interfaces in the LTE network

Collect and analyse EPS E2E IP layer traces including O&M, CP, and UP traces

Diagnose and resolve LTE throughput problems including low and fluctuating throughput

Analyse LTE E2E signalling procedures: access, paging, TAU, handover, and detach

Who Is This For

Designed for LTE Network Professionals

H31-421 is built for engineers who want to acquire the HCIP-LTE certification and those seeking professional-level mastery in Huawei LTE RAN operation, maintenance, and troubleshooting.

LTE RAN Engineers

O&M Specialists

Huawei Partners

Field Engineers

HCIA-LTE Holders

Telecom Operators

FAQs

Frequently Asked Questions

What is the H31-421 HCIP-LTE certification?

H31-421 is Huawei's professional-level LTE certification. It validates skills in LTE air interface principles (OFDMA/SC-FDMA, HARQ, MIMO), EPS E2E IP protocol trace analysis, antenna and feeder fault troubleshooting, eNodeB reconfiguration, and LTE E2E signalling procedures.

What are the prerequisites for H31-421?

A general knowledge of cellular systems and radio technology is required. Hands-on experience with Huawei LTE eNodeB products is strongly recommended before attempting this professional-level certification.

What topics are covered in H31-421?

The exam covers LTE air interface (OFDMA/SC-FDMA, HARQ, MIMO, radio protocols), EPS E2E IP protocol analysis (O&M/CP/UP traces, throughput analysis), antenna & feeder fault analysis (PIM, VSWR, TMA), eNodeB reconfiguration, and LTE E2E signalling (access, paging, TAU, handover, detach).

What is the H31-421 exam format?

H31-421 consists of 60 questions with a 90-minute duration and a 60% passing score, delivered online through the Huawei Certification System in English and Chinese.

How do I download the H31-421 brochure?

Click the "Brochure" button on this page, fill in your contact details, and the brochure downloads instantly. Our team will contact you to discuss enrolment options and batch schedules.

Become a Certified LTE Network Professional

Join Zetlan Technologies' H31-421 programme and master LTE air interface principles, EPS E2E IP protocol analysis, antenna & feeder fault troubleshooting, eNodeB reconfiguration, and LTE signalling procedures. Earn your HCIP-LTE certification.