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E and V Band.pptx

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E and V Band.pptx

  1. 1. E and V Band
  2. 2. Introduction E band 60 to 90 gigahertz (GHz)- EHF ● United States, FCC- 71-76 GHz, 81-86 GHz. ● Most of the cases are using a channel arrangement based on 250 MHz channels, with a few cases open to go below, allowing to use 62.5 and 125 MHz segmentation ● European countries :71-74 GHz& 81-84 GHz Military bands , and for not available for civil use.
  3. 3. V band case:- V band 40 to 75 gigahertz (GHz)-UHF ● United States, the FCC - 57 to 71 GHz for unlicensed wireless systems ● Review covers 61 countries,covering at least the 59-63 GHz portion ● ECC Recommendation 57 – 64 GHz band for point-to-point fixed wireless systems and “Use of the 64 – 66 GHz band for fixed service
  4. 4. Propagation Characteristics
  5. 5. Oxygen absorption in E & V band
  6. 6. V-Band spectrum
  7. 7. E – Band characteristics ● Distance upto 3 Kms. ● 71-76 and 81-86 GHz bands. ● The advantages of E-band are its wide spectrum i.e.10 GHz. ● Improvement in modulation from 512 QAM to 4096 QAM.
  8. 8. V - Band characteristics ● Short distance up to 300 meters. ● Oxygen absorption in V-Bands allows ● reuse of frequencies, the distance is about 300 meters (short range signal propagation) and suitable for dense deployment. ● Negligible interference. ● Radio links operating in the V-band can be densely deployed in congested cities without interference, and without need for digging for cables.
  9. 9. Summary of E & V bands ● Pencil beam propagation. ● Short range signal propagation (V-Band around 300m and E-Band around 3 km). ● Inability to penetrate walls. ● Heavy frequency reuse of spectrum. ● Less/no interference. ● Large available spectrum of 7GHz in V-Band and 10 GHz in E-band.
  10. 10. OptiX RTN 380 ● 71–76 GHz or 81–86 GHz frequency bands (E-band). ● Maximum transmission distance of 10 km. ● Large channel bandwidth: 62.5 MHz, 125 MHz, 250 MHz, 500 MHz, and 750 MHz. ● Modulation Scheme: QPSK, 16QAM, 16QAM, 32QAM, and 64QAM.
  11. 11. OptiX RTN 360 ● Operating Frequency: 59 GHz – 64 GHz. ● Maximum Transmission distance: 300m ● Channel Bandwidth: 200 MHz ● Modulation Scheme: 16 QAM.
  12. 12. ITU E & V Band Allocations
  13. 13. ITU V Band Allocations ● TDD and FDD ● Channel Separations of 3.5, 7, 14, 28 and 56 MHz in 55.78 - 57 GHz. ● Channel Separations of 50 MHz in 57 - 64 GHz. ● Channel Separations of 30 & 50 MHz in 64 - 66 GHz. ● High Density applications in Fixed Service (HDFS)
  14. 14. V Band TDD 55.78 - 57 GHz
  15. 15. V Band FDD 55.78 - 57 GHz
  16. 16. V Band Basic Channel Arrangement 57 - 64 GHz
  17. 17. V Band TDD and FDD 57 - 64 GHz
  18. 18. V Band Basic Channel Arrangement 64 - 66 GHz
  19. 19. V Band Basic Channel Arrangement 64 - 66 GHz
  20. 20. V Band Basic Channel Arrangement 64 - 66 GHz
  21. 21. V Band TDD and FDD 64 - 66 GHz
  22. 22. V Band ITU Document
  23. 23. E Band Basic Channel Arrangement
  24. 24. E Band Pairing and Aggregating Channels
  25. 25. E Band Pairing and Aggregating Channels
  26. 26. E Band ITU Document
  27. 27. Delicensing ● Partial Licensing ● Big Tech VS Telecom ● Affordable Broadband in Rural ● SIAM and Innovation (60 GHz, 76 - 77 GHz and 79 GHz) ● ITU APT Foundation of India (WiFi & GDP growth of 12.7 Lakh Crore)
  28. 28. Viewpoints & Recommendations
  29. 29. $ 14500000000 This is the benefits that the world is reaping from unlicensed RF spectrum. Economic Benefits from E & V Bands: Producer surplus due to offloading from mobile broadband Producer surplus from lower backhaul costs for mobile broadband Consumer surplus from the use of commercial Wi-Fi hotspots and fixed broadband ₹ 12.7 Lakh Crore Estimated Economic Value of WiFi in the unlicensed spectrum bands (including V band) in India (as per IAFI)
  30. 30. How to go about licensing these bands?
  31. 31. Philosophy and Intent 1. Govt’s business is not to do business 1. Max benefit to Society vs Short term revenue maximisation for govt. 1. Innovation and competition may lead to many types of uses that are difficult to anticipate at present.
  32. 32. Conflicting views of Industry Telecom Service Providers (say Airtel, Jio) Broadband India Forum (group of Apple,Microsoft, Amazon etc)
  33. 33. TRAI’s Recommendation August 2014: Both E&V bands should be delicensed and allotted administratively on “link to link basis” (but DoT hesitant b/c of 2012 SC 2G spectrum judgement)

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