LTE Interview questions

Here are some of the basic question that are asked in LTE interview:

1. Questions related to cat-m like ack/Nack in UL/DL, half duplex
2. Pucch and pusch can go in same tti?
3. Who triggers handover
4. Cell reselection how it happens
5. Can intracell handover happens
6. Handovers scenarios
7. Handover types in LTE, What is difference between X2 and S1 HO?
8. Who triggers handover
9. Interface between different entity
10. Turbo coading and rate matching 
11. How will you design interface between two modules?
12. Questions related to cat-m like ack/Nack in UL/DL, half duplex
13. Pucch and pusch can go in same tti?
14. Cell reselection how it happens
15. Can intracell handover happens
16. TA update
17. CAT-M UEs
18. Rach procedure
19. Compelete attach flow
20. Pucch formats
21. Catm DCI formats
22. Channels added n removed in catm
23. Cell reselection how it happena
24. Can intracell handover happens
25. Tell us about LTE Frame Structure?
26. What is Subcarrier Bandwidth in LTE?
27. What is BLER? What’s Target value?
28. How to investigate low throughput?
29. What are important LTE KPIs ?
30. How can we calculate LTE DL/UL throughput?
31. What Maximum LTE throughput can be achieved in the field?
32. What is difference between HO , Redirection, Cell Selection / Re-Selection?
33. What is RRC Reconfiguration?
34. What is Difference between MIB and SIB?
35. How many types of SIBs are available in LTE?
36. What does SIB1/SIB2/ … /SIB13 do?
37. On which channels SIBs are transmitted?
38. Which SIBs are essential?
39. Message flow during LTE Call?
40. Can you tell us about Prach/PCI/Pusch/Pucch Planning?
41. Explain Handover signalling messages?
42. Explain Events measurements in LTE
43. Which event trigger during the reselection from LTE to 3G and vice versa
44. What is ANR? types of ANR? Which one is better?
45. What is QCI?
46. What is LTE modulation?AMC?
47. What is TM? TM1? TM2? TM3? TM4?
48. Mapping of MIB and SIB messages?
49. Explain SIB messages?
50. What Message will be observed on layer-3 During handover stage?
51. Which channel carries CQI information to enodB?
52. What other info PUCCH carries?
53. What is DRX?
54. What is the Location of PUCCH in the UL Spectrum?
55. CS Fall back criteria and event, Explain CSFallback signalling?
56. Explain PCI (Physical Cell id)