4G LTE Interview Questions Bank
Most Frequently asked LTE Interview Questions and Answers with Additional Video Modules
When it comes to getting ready for your upcoming 4G LTE interview. The biggest challenge you may face is to overview and prepare for so many questions that may be asked. All those questions in a limited time. Even if you are aware and familiar with all the technical concepts. It can take a while before you can refresh your concepts. For your convenience, I have created 4G LTE Interview Bank , in order to make sure that you can do your preparation on time.
This course is your one shop stop in order to prepare for your 4G LTE interview questions. Students and working professionals who want to review their 4G LTE skills should enroll in this course. The course assumes you already have basic understanding of LTE Air Interface, Configuration parameters and network optimization.
The course is divided into 9 modules starting from ::
Module 1: LTE fundamentals
Module 2: Air Interface protocols and procedures.
Module 3: Time Division Duplexing (TDD)
Module 4: Multi Antenna Schemes
Module 5: Radio Frequency Requirements
Module 6: Radio Resource Management
Module 7: Mobility
Module 8: Scheduling and Quality of Service in LTE
Module 9: Frequently Asked Questions Videos
Each module has Pre and Post exercises. Before starting each module. You can evaluate and test, where do you stand with your existing knowledge. After going through a module, you are encouraged to go through post exercise to evaluate yourself and measure your learning outcomes. Each module is dedicated on an important aspect of 4G LTE technology.
WHAT ARE THE REQUIREMENTS ?
Learners should have understanding of 4G LTE. The course is a mix of text format and video modules in question answer format to help you ace up and review concepts quickly. In order to get maximum benefit from this course. The prerequiste for this course are that you need to be familiar with understanding of 4G LTE architecture and its operation. You should be aware of how LTE air interface works. What are the key configuration components in LTE ? How LTE Optimization works.
WHO IS THE TARGET AUDIENCE ?
The course is for ANYONE who is appearing for an interview in 4G LTE RF related role. This course is NOT for you if you do not have knowledge of LTE Air Interface operations, configuration and LTE Optimization.
Course Curriculum
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StartModule 1: PRE-LEARNING
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StartModule 1 Overview Video (14:32)
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StartWHAT IS LTE ?
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StartWHAT IS SAE?
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StartWHAT ARE THE NAMING CONVENTIONS IN SAE/LTE?
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StartHOW DO SUBSCRIBERS BENEFIT FROM SERVICES PROVIDED BY LTE? OR WHY DO WE NEED LTE ? AREN'T 2G, 3G ALREADY ENOUGH FOR SUBSCRIBER SERVICES?
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StartCAN GSM AND WCDMA/HSPA WORK SEAMLESSLY WITH LTE?
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StartWILL LTE REPLACE FIXED BROADBAND?
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StartWHICH SPECTRUM LTE USES?
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StartWHAT KIND OF BIT-RATES LTE CAN DELIVER?
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StartWHAT LATENCY IS EXPECTED IN LTE SYSTEM?
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StartDOES LTE PROVIDE VOICE SERVICE?
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StartDOES LTE HAVE A NEW CORE NETWORK COMPARED TO 3G ?
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StartWHAT IS THE DIFFERENCE BETWEEN FDD AND TDD MODE IN LTE?
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StartHOW DOES LTE SUPPORT OPERATORS TO REDUCE OPEX?
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StartWHAT WAS THE OBJECTIVE OF 3GPP IN TERMS OF LTE REQUIREMENTS?
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StartEXPLAIN DL AND UL TRANSMISSION SCHEME IN LTE ? WHAT IS THE CONCEPT OF CYCLIC PREFIX IN LTE ? WHAT IS THE ADVANTAGE OF CYCLIC PREFIX ? (31:32)
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StartWHAT UL TRANSMISSION SCHEME IS USED?
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StartWHAT DL TRANSMISSION SCHEME IS USED?
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StartWHAT ARE THE THEORETICAL PEAK DATA RATES ASSUMPTIONS?
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StartWHAT IS THE CONTROL PLANE (CP) LATENCY IN LTE ?
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StartWHAT IS THE USER PLANE (UP) LATENCY IN LTE ?
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StartWHAT USER THROUGHPUT CAN BE ACHIEVED? OR WHAT USER THROUGHPUT VALUES ARE ACHIEVED IN LTE COMPARED TO HSPA?
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StartWHAT SPECTRUM EFFICIENCY CAN BE ACHIEVED IN LTE ?
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StartOVERALL EPS OVERVIEW: WHAT IS EPS?
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StartWHAT IS THE BEARER CONCEPT SUPPORTED BY THE EPS?
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StartWHAT IS THE COMPOSITION OF EPC?
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StartWHAT IS THE COMPOSITION OF E-UTRAN?
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StartCAN LTE SYSTEM BE DEPLOYED IN A NETWORK ALREADY SUPPORTING 2G or 3G ?
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StartWHAT INTERFACES DOES SAE/LTE HAVE?
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StartWHAT IS THE FUNCTIONALITY OF THE MME NODE?
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StartWHAT IS THE FUNCTIONALITY OF THE P/S-GW NODE?
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StartWHY DO WE NEED POOLING OF MME AND S-GW?
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StartWHAT IS THE ENODE B FUNCTIONALITY?
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StartWHAT PROTOCOLS ARE INVOLVED IN THE CONTROL PLANE OF LTE ? CAN YOU EXPLAIN THEIR FUNCTIONALITY BRIEFLY ?
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StartWHAT ARE THE EPS MOBILITY MANAGEMENT STATES?
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StartWHAT ARE THE POSSIBLE RRC STATES?
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StartWhat is the difference between 3GPP and non-3GPP technologies ? (3:19)
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StartModule 1: POST-LEARNING
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StartModule 2: PRE-LEARNING
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StartModule 2 Overview Video (12:20)
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StartRandom Access Procedure Power Control Video (8:43)
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StartWHAT IS RANDOM ACCESS PREAMBLE ? HOW IT IS STRUCTURED ? (VIDEO) (9:27)
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StartWHAT IS RANDOM ACCESS PROCEDURE (PHASE 1) OR WHAT IS PHASE 1 OF RANDOM ACCESS PROCEDURE ?
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StartWHAT IS THE RANDOM-ACCESS RESPONSE (PHASE 2)? OR WHAT IS PHASE 2 OF THE RANDOM ACCESS PROCEDURE ?
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StartWHAT IS RANDOM ACCESS PHASE 3 ? OR HOW IS THE FIRST SCHEDULED UL TRANSMISSION (PHASE 3) DONE ?
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StartWHAT IS THE CONTENTION RESOLUTION (RANDOM ACCESS PHASE 4)?
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Start WHAT IS THE PURPOSE OF CONTENTION-FREE RANDOM ACCESS PROCEDURE?
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StartWHAT IS THE MEANING OF THE RANDOM-ACCESS BACK-OFF PROCEDURE?
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StartWHAT ARE THE USER PLANE PROTOCOL STACK AND FUNCTIONALITY OF THOSE PROTOCOL LAYERS?
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StartWHY DO WE NEED UPLINK TIME-ALIGNMENT IN RRC CONNECTED MODE?
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StartWHAT IS THE PURPOSE OF THE MAC LAYER IN LTE?
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StartHOW DOES HARQ OPERATE?
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StartWHAT IS THE PURPOSE OF THE RLC LAYER?
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StartWHAT IS THE PURPOSE OF THE PDCP LAYER?
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StartWHERE ARE DATA FLOW AND MULTIPLEXING USED IN LTE AIR INTERFACE? OR HOW DO PROTOCOLS OPERATE IN LTE AIR INTERFACE?
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StartWHAT IS THE PURPOSE OF THE PHY LAYER?
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StartWHAT ARE THE AVAILABLE TRANSPORT CHANNELS IN LTE?
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StartWHAT AVAILABLE LOGICAL CHANNELS EXIST IN LTE ?
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StartWHAT IS THE MAPPING BETWEEN LOGICAL CHANNEL , TRANSPORT CHANNELS AND PHYSICAL CHANNELS ?
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StartWHAT ARE THE PHYSICAL CHANNELS AND SIGNALS USED IN LTE?
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StartWHAT IS THE STRUCTURE OF THE DOWNLINK PHYSICAL RESOURCE IN LTE ?
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StartWHAT IS THE DIFFERENCE BETWEEN NORMAL AND EXTENDED CYCLIC PREFIX IN LTE DOWNLINK TRANSMISSION?
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StartWHAT REFERENCE SIGNALS ARE DEFINED FOR LTE DOWNLINK TRANSMISSION?
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StartWHAT IS THE PROCEDURE FOR DOWNLINK L1/L2 CONTROL SIGNALLING IN LTE?
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StartWHY IS BLINDING DECODING USED FOR PDCCH ?
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StartHOW IS DOWNLINK POWER CONTROL USED IN LTE?
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StartHOW IS POWER CONTROL USED IN LTE UPLINK TRANSMISSION?
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StartWHAT IS LINK ADAPTION?
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StartHOW IS LINK ADAPTATION USED IN LTE DOWNLINK ?
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StartHOW IS LINK ADAPTATION USED IN LTE UPLINK?
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StartHOW DOES PAGING WORK IN LTE?
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StartHOW IS SC-FDMA SIGNAL GENERATED IN LTE? HOW IS UPLINK SIGNAL GENERATED?
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StartWHAT REFERENCE SIGNALS ARE DEFINED FOR LTE UPLINK TRANSMISSION?
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StartWHAT UPLINK L1/L2 CONTROL SIGNALLING IS DEFINED FOR LTE?
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StartHOW IS UPLINK TRANSMIT-TIMING CONTROL HANDLED IN LTE?
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StartDOES UPLINK TIME ALIGNMENT REMAIN VALID FOR THE UE ALL THE TIME?
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StartModule 2: POST LEARNING
Frequently Asked Questions
If you want to be prepared for your upcoming interview on 4G LTE in order to get the job you want and the salary you deserve. You don't want to miss this course. See you on the other side.