Rishab Singh’s Post

"🚀📡 Mastering the 5G O-RAN Interview: 10 Key 🔑 Strategies for Success 🌟" 📘 Study O-RAN Basics: Get a strong grasp of O-RAN concepts and architecture. 🏫 Example: Understand how O-RAN differs from traditional RAN in terms of openness and flexibility. 🖥️ Deep Dive into Technical Standards: Review O-RAN Alliance specifications and whitepapers. 📑 Example: Familiarize yourself with O-RAN interfaces like E2, O1, F1. 📡 Understand 5G Technologies: Master key 5G technologies relevant to O-RAN (e.g., Massive MIMO, beamforming). 🌍 Example: How beamforming improves network coverage in crowded areas. 💻 Hands-On Practice: Gain practical experience with O-RAN components and tools. 🛠️ Example: Setting up a small O-RAN test environment or simulation. 📊 Know the Use Cases: Study real-world applications of O-RAN. 🏙️ Example: Implementing O-RAN for smart city projects. 🌐 Networking Protocols: Understand networking protocols used in O-RAN. 🖧 Example: The role of protocols like PTP in network synchronization. 🗣️ Communication Skills: Practice explaining complex O-RAN concepts in simple terms. 💬 Example: Describing the benefits of O-RAN to a non-technical person. 📝 Mock Interviews: Conduct or participate in mock interviews. 🎭 Example: Role-playing an interview scenario with a colleague. 📰 Stay Updated: Keep abreast of the latest developments in O-RAN and 5G. 🗞️ Example: Reading about recent O-RAN deployments or technology updates. 🎓 Certifications and Courses: Consider relevant courses or certifications in O-RAN and 5G. 🏅 Example: Completing an online course in 5G network engineering. Using these techniques, you can prepare effectively for a 5G O-RAN interview, showcasing both your technical expertise and your ability to communicate complex ideas clearly. #5GSuccessKeys 🔑 #ORANMastery 📡 #5GInterviewTips 🚀 #FutureOfRAN 🌐 #TechInterviewPrep 💼 #OpenRANInsights 🤓 #5GNetworksUnlocked 🌟 #O_RANFuture 📊 #NextGenTechTalent 🎓 #Innovate5G 🛠️

"Curious about network engineering job? What's a typical day like?" Source: https://lnkd.in/gEAdkQvE What does a typical day look like in network engineering? #networkengineering #jobday #techworld Are you considering a career in network engineering but don't know where to start? #backtoschool #techworld #careerpath Tell me about your job in network engineering - I want to hear from all positions! #jobroles #networkengineering #techworld

LTE/NR Interview Questions ———————1st——————————— 1. What is 5G and why do we need it over existing LTE? 2. SA and NSA mode operation 3. Sub 6[FR1] and mmWave [FR2] 4. 5G Numerology [SCS/Subcarrier spacing details], RE, RB 5. 5G supported Bandwidth, MCS, MAS, FR1, and FR2 supported bands as per 3GPP Rel 15/16 6. 5G service-based architecture 7. 5G Deployment options [option 2/3/3a/3x/5/6/7/7a/7x] 8. 5G supported main features- eMBB, Network slicing, URLCC, mMTC, Massive MIMO, Beamforming, etc 9. 5G NSA and 5G SA power on call flow with each message/IE 10. 5G protocol stack, channels, Frame structure, and physical layer parameters ———————2nd——————————— 1. Difference between 3, 3a and 3x deployment options? 2. 5G gNodeB architecture? 3. Functionality of 5G MAC, RLC and PDCP compared to LTE? 4. Explain about 5G NR new protocol SDAP? 5. 5G SA and NSA registration call flow and VoNR call flow? 6. 5G throughput calculation formula and main parameters? 7. CORESET in 5G and how does it different from LTE corset? 8. 5G core major interfaces? 9. Network slicing, S-NSSI, SST, and SD? 10. Explain about SSB? ———————3rd——————————— 1. 5G NR BWP Types and BWP Operations? 2. Explain DCNR and MRDC ? 3. Explain MU MIMO and Massive MIMO? 4. 5G TDD and FDD frame structure? 5. 5G NR PDCP ROHC modes and profiles supported? 6. Signaling radio bearers and importance of SRB 3? 7. 5G NR UE and Network identifiers? 8. 5G NR Modulation and Coding Scheme (MCS) Characteristics? 9. 5G NR PSS and LTE PSS comparison? 10. 5G NR SSS and LTE SSS comparison? ———————4th——————————— 1. 5G UE category types? 2. 5G NR Transport block size[TBS] calculation? 3. 5G NR RACH procedure and RACH types? 4. 5G NR CBRA and CFRA RACH? 5. 5G NR SCG failure, Beamforming failure, and RLF log analysis and debug? 6. 5G NR Measurements: RSRP, RSSI, RSRQ, and SINR? 7. Handovers in 5G? 8. Explain QOS in 5G? 9. 5G NR Logical, Transport, and Physical Channels Mapping? 10. 5G NR Radio Network Temporary Identifier (RNTI) and RNTI types? ———————5th——————————— 1. Handover call flow in detail (conurer questions like: path switch, SN status transfer ) 2. 256 qam related link adaptation (DL UL link adaptation , alt cqi table) 3. TTI bundling 4. Sps (its an volte feature) 5. Call flow in detail (rach, Ue id acquisition, location update related counter questions ) 6. Emergency call flow 7. Establishment cause (like in what case what establishment cause will come) 8.DL UL throughput debugging 9. SON (ANR, MRO)

2G GSM Interview Preparation: Currant channel definitions -------------------------------------------------------------------------------------- 1.Time: It is system time of computer. 2.Cell name: It displays the name of the sector which is serving according to the cell file that is loaded in TEMS. 3.CGI : It stands for the Cell Global Identity which is unique for every sector of the site. It consists of MCC,MNC,LAC,CI. MCC: Mobile Country Code 0 – 999 MNC: Mobile Network Code 0 – 99 LAC : Location Area Code 0 -65535 CI: Cell Identity 0 – 65535 •Cell GPRS Support: Tells sector is having GPRS or not. Values are Yes or No . •Band : It tells in which Freq. Band mobile is operating e.g. GSM 900/ 1800. •BCCH ARFCN: It tells by which BCCH is the mobile station getting served. •TCH ARFCN: On which Traffic Freq. call is going on. •BSIC (Base Station Identity Code) : It is combination of Network Color Code (NCC) (0 – 7) & Base Station Color Code (BCC) (0 – 7). e.g. 62. It is decoded by mobile on every Sync. Channel Message. •Mode: It is shows in which state is mobile operating, Idle, Dedicated & Packet. •Time slot: On which time slot of current TCH call is going on. Viz. time slot no. of TRX. •Channel Type: Type of channel mobile is getting now. Like BCCH / SDCCH/8 + SACCH/C8 or CBCH / TCH/F +FACCH/F +SACCH/F. •Channel Mode : Shows mode of coding like Speech Full Rate of Half Rate. •Speech Codec: It shows FR for Full Rate, HR for Half Rate & EFR for Enhanced Full Rate. •Ciphering Algorithm : It shows ciphering algorithm used by the system to protect data for privacy. E.g. Cipher by A5/2. •Sub Channel Number: It is displayed at a time when mobile is on dedicated mode at time of call setup when it is getting SDCCH at that time it shows which SDCCH it is getting out of 8 available. E.g. 2. •Hopping Channel : It shows that current sector is having hopping feature or not. Values are Yes or No. •Hopping Frequencies : It displays no. of freq. on which mobile is allowed to hop. viz. MA List for hopping of that sector. •Mobile Allocation Index Offset (MAIO): It is the number which tells from which freq. from given MA list for sector hopping has to be started. E.g. 0 means sector will start from first freq. to hop. •Hopping Sequence Number (HSN) : Indicates sequence in which frequencies are allowed to hop from the MA List. 0- 63. 0 for Cyclic Hopping, 1 – 63 random hopping sequences. #GSM #2GInterview #TelecomJobs #TelecomRF #RadioFrequencyJobs #Jobs #Optimizer #TeamLead #RFManager #DriveTestEngineer #Globalsystemformobile

A network engineer interview is a process in which candidates for a network engineering position are assessed by potential employers. The interview typically evaluates both technical skills and soft skills necessary for the role. The interview process may include: 1. Technical Questions: Questions that assess the candidate's knowledge of networking concepts, such as TCP/IP, subnetting, routing, switching, firewalls, VPNs, and network protocols. 2. Practical Problems: Scenarios or problems that require candidates to demonstrate their problem-solving skills, such as troubleshooting network issues or designing network architectures. 3. Behavioral Questions: Questions that explore how the candidate handles various situations, teamwork, communication, and other soft skills. 4. Hands-On Tests: Practical assessments that may involve configuring network devices, using network simulation tools, or writing scripts to automate network tasks. 5. Experience and Projects: Discussion of the candidate’s previous experience, projects they have worked on, and specific technologies they have used. A network engineer interview aims to ensure that the candidate has the necessary technical expertise and the ability to effectively apply their knowledge in real-world situations. Note: interview is not always about your skills its about your behaviour, professionalism, attitude, body language and commitment.

Dear All; This is basically for people who lost their job, or trying to change the job or people who are looking for new job. I am starting a batch for 5G Protocol Testing and Log Analysis in Amrita Engineering College -5G 6G Innovation Lab. Classes will be held in hybrid mode (Virtual Classroom and Classroom). Class Timing : Weekend (12PM to 3 PM). Weekdays options also available. Batch Starting : 1st June 2024 Topic Covered: 5G Layer 3 (NAS, RRC, SDAP), Layer 2 (PDCP, RLC, MAC), Layer 1 Physical layer Processing, VoNR, Carrier Aggregation. Introduction to SON, O-RAN, Telco-Cloud. Tools: QXDM, QCAT, Wireshark. Placement: 100% Assistance in top telecom MNC's Only. Salary Hike: Min 30 to 40% Scholarship : 50% for Qualified Candidate. Qualification: Diploma/B.E/B.Tech (0 to 15 Year Exp) Trainer Profile: Minimum 15 Year Industry exp professionals only. Video Recording: Receive session recordings and notes after each class. Interview Prep: Sharpen your skills with a 10-day exercise. Certification: Earn a Shareable Certificate upon completion. Course Duration: 3 Months, Online/Virtual/Classroom, 6-8 Hours Per Week 🌟 Program Highlights: * 100% Placement Assistance * Industry-recognized curriculum * Partnerships with top telecom MNCs 📲 Contact us for more details and secure your future today! 📞 Call or Whatsapp: +91-8800669860 🌐 Visit: telecomgurukul.com hashtag #5G hashtag #6G hashtag #ProtocolTesting hashtag #LogAnalysis hashtag #Telecom hashtag #Engineering hashtag #CareerDevelopment hashtag #JobOpportunity hashtag #Technology hashtag #Training hashtag #AmritaEngineeringCollege hashtag #InnovationLab hashtag #VirtualClassroom hashtag #HybridLearning hashtag #NAS hashtag #RRC hashtag #SDAP hashtag #PDCP hashtag #RLC hashtag #MAC hashtag #VoNR hashtag #CarrierAggregation hashtag #SON hashtag #ORAN hashtag #TelcoCloud hashtag #QXDM hashtag #QCAT hashtag #Wireshark hashtag #PlacementAssistance hashtag #SalaryHike hashtag #Scholarship hashtag #CareerGrowth hashtag #ProfessionalDevelopment

10 things every Network Engineer should do before an interview: Ensure that you have a strong understanding of fundamental networking concepts like TCP/IP, subnetting, VLANs, and routing protocols (e.g., OSPF, BGP). Be prepared to demonstrate your problem-solving skills by practicing common network issues and their resolutions. You can even use Cisco Packet Tracer. Learn about the company’s history/products/services. Understand as much as you can about your probable future employer. Review the job listing to identify the key skills and qualifications required for the position. Always highlight what they consider to be preferential for the role and you already have it. Understand any specific networking challenges or projects the company might be facing by reviewing their blog, press releases, or news articles. Practice answering common interview questions related to network engineering. You can do this using a mirror or ask a close friend, a family member to help you practice the interview. Be familiar with everything on your resume, including your previous projects, experiences and skills. If you have irrelevant things for that specific role, remove it from your resume. Utilize salary research websites like Linkedin, Glassdoor and Payscale to get insights about the market value for that specific position. Have a clear number for your salary before the interview. Don’t look at the gross salary because that’s your salary before deducting taxes. always look at the net salary because that is what will stay in your pocket. Think beyond salary and consider total compensation packages, including benefits such as health insurance, retirement plans, bonuses and stock options. Bonus: salaries differ based on the size of the company (startup vs large corporation) and the type of company. Want to take your network career to the next level?🚀 DM and let me know how I can help you 🔥 #binaryavenue #networkengineer