Integer Telecom Services Utran Engineer Interview Questions and Answers

Q1. What is HO? and its type? Events in HO
Ans. 
HO stands for Handover. It is a process of transferring an ongoing call or data session from one cell to another.
• There are two types of HO: Intra-cell HO and Inter-cell HO

• Intra-cell HO occurs when a mobile device moves from one channel to another within the same cell

• Inter-cell HO occurs when a mobile device moves from one cell to another

• Events in HO include HO Request, HO Access, HO Required, HO Command, and HO Complet
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Q2. Whats is MCR ?How we can improve MCR? What is the reason of MCR?
Ans. 
MCR stands for Maximum Cell Rate. It is the maximum rate at which cells can be transmitted through a network.
• MCR is an important parameter in ATM (Asynchronous Transfer Mode) networks.

• It is used to ensure that the network does not become congested.

• MCR is determined by the network operator and is based on the capacity of the network.

• Improving MCR can be done by increasing the capacity of the network or by optimizing the...read more
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Q3. Whats is CQI and MCS?
Ans. 
CQI stands for Channel Quality Indicator and MCS stands for Modulation and Coding Scheme.
• CQI is a feedback mechanism used in wireless communication systems to indicate the quality of the channel.

• MCS is a technique used to modulate and encode data for transmission over a wireless channel.

• CQI and MCS are used together to optimize the transmission rate and quality of wireless communication.

• Higher CQI values indicate bette...read more
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Q4. Whats is Volte call flow?
Ans. 
Volte call flow is the process of establishing and maintaining a voice call over a 4G LTE network.
• The call is initiated by the user and sent to the LTE network

• The network sends a SIP invite message to the called party

• The called party responds with a SIP 180 ringing message

• Once the call is answered, the network sends a SIP 200 OK message

• The voice call is established and maintained over the LTE network
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Q5. Whats is difference between cell throughput and user throughput?
Ans. 
Cell throughput refers to the amount of data transmitted by a cell, while user throughput is the amount of data received by a user.
• Cell throughput is the total amount of data transmitted by a cell, including data sent to all users within the cell.

• User throughput is the amount of data received by a single user within the cell.

• Cell throughput is affected by factors such as the number of users, signal strength, and availa...read more
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Q1. Whats is CA?and its types?ands its combinations?
Ans. 
CA stands for Carrier Aggregation. It is a technology used in LTE networks to combine multiple frequency bands for higher data rates.
• CA allows for faster data speeds by combining multiple frequency bands.

• There are two types of CA: intra-band and inter-band.

• Intra-band CA combines multiple carriers within the same frequency band.

• Inter-band CA combines carriers from different frequency bands.

• CA can be used in different co...read more
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Q2. Whats is interference?and its types with examples?
Ans. 
Interference is the unwanted signal that affects the quality of the desired signal.
• Interference can be caused by external sources such as other wireless devices, power lines, or natural phenomena like lightning.

• It can also be caused by internal sources such as reflections, multipath, or co-channel interference.

• Types of interference include thermal noise, crosstalk, adjacent channel interference, and intermodulation int...read more
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Q3. Reasons of low throughput and how will improve low throughout?
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Q4. What is SIB?and different types of SIB?
Ans. 
SIB stands for System Information Block. It is a type of message used in wireless communication systems.
• SIBs contain information about the network, such as cell identity, location area code, and frequency.

• There are different types of SIBs, including SIB1, SIB2, SIB3, SIB4, SIB5, SIB6, SIB7, SIB8, SIB9, SIB10, SIB11, and SIB12.

• SIB1 is the most important SIB, as it contains information about the cell identity, frequency,...read more
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Basic questions about coding

Q1. Basic hr questions
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Q2. Salary discussion
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Q1. Basic DSA round
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Q1. Past projects and skills
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Q1. Introduction about your self
Ans. 
I am a Senior Engineer with 10+ years of experience in software development, specializing in backend systems and cloud technologies.
• 10+ years of experience in software development

• Specialize in backend systems and cloud technologies

• Strong problem-solving skills

• Experience with agile methodologies

• Excellent communication and teamwork abilities
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It has basic aptitude question

If you unable to clear apti then there is a option for GD

Q1. Basic question on technical stuffs are asked This is the L1 round. If u clear this then u go to L2 round.
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Q2. Oops, Dsa, Dbms, Html,Css
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Q1. This the final technical round which is called the L2 round
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Q1. The HR focus on your communication skills and why u want to join the company and personal stuffs.
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They will give 3 questions

Q1. There will be technical round after finishing of exam
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Q2. And HR round also will be same time of Technical
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Q1. Basic concepts of VOIP and trunk configuration. Need to know ongoing voip trends in the market. Teams is budding platform and would be great to have Skype for business background
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Q1. Why do you want to join Tata?
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