Transmission SDH
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This document provides an overview of transmission media in cellular networks. It discusses what transmission media is, why it is needed, and the major types used including microwave and optical media. It also describes the branches of the transmission department and provides a case study on adding a new transmission link, covering steps like line of sight planning, implementation, testing, and monitoring.
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Transmission SDH
- 2. ∗ What is transmission media ? ∗ Why transmission media ? ∗ Type of transmission media . ∗ TR Dep. Branches ∗ Case study ∗ Omnnea Network Mustafa Hatiff 2 Presentation layout
- 3. What is transmission media ? Mustafa Hatiff 3
- 4. ∗ Transmission media is a pathway through which data are transmitted in communication networks. Mustafa Hatiff 4 What is transmission media ?
- 5. Why transmission media ? Mustafa Hatiff 5
- 6. Mustafa Hatiff 6 Why transmission media ? X Y Costumer X want to call costumer Y BSC MSC ? The smaller cellular network have about 100 towers with min. 3 BSC & 1 MSC
- 7. We have only one solution to connect all this long distance its Mustafa Hatiff 7 Why transmission media ? (cont.) TR Dep.
- 8. Type of transmission media Mustafa Hatiff 8
- 9. ∗ The major transmission media in cellular network are Microwave & Optical ∗ Can classify the transmission media basing on protocols SDH & PDH Mustafa Hatiff 9 Type of transmission media
- 10. Mustafa Hatiff 10 Type of transmission media (cont.) optical type Short distances Long distances
- 11. Mustafa Hatiff 11 Type of transmission media (cont.)
- 12. Mustafa Hatiff 12 Type of transmission media (cont.)
- 13. Mustafa Hatiff 13 Type of transmission media (cont.)
- 14. Mustafa Hatiff 14 Type of transmission media (cont.)
- 15. Mustafa Hatiff 15 Type of transmission media (cont.)
- 16. Mustafa Hatiff 16 Type of transmission media (cont.)
- 17. TR Dep. branches Mustafa Hatiff 17
- 18. Mustafa Hatiff 18 TR Dep. branches Transmission Department Planning Operation
- 19. Case study Mustafa Hatiff 19
- 20. The steps to add new link in the network ∗Line of site ( LoS) ∗Planning ∗Implementation ∗Test ∗Monitor & follow up Mustafa Hatiff 20 Case study
- 21. Mustafa Hatiff 21 Case study(cont.) Manger Check the LoS ? Clear LoS Check the LoS ? Planning team Implementation team link budget
- 22. Mustafa Hatiff 22 Case study (cont.) link budget ∗ High & size of the antennas ∗ Frequency , Polarization and Radio mode ∗ Transmit & received power ∗ Fide margin ∗ Availability of the link ( recommended 99.9999 % ) 99.99999% * 365 * 24 * 60 * 60 = 0.17 S/Year Day Hour min S
- 23. Mustafa Hatiff 23 Case study (cont.) SDH link Implementation Multi path Space diversity Site A Site B
- 24. Thanks ! Mustafa Hatiff 24
Editor's Notes
- Transmissions media consist : copper wire , fiber , air, …
- All the time must the phone send a signal to the MSC even if its not on call
- TR
- The must link in any cellular network are microwave or fiber
- Fiber optical is a class transmission media up to 50 times more distance than multimode , but it also costs more. Multimode fiber gives you high bandwidth at high speeds over medium distances , To send multi carrier in single mode we need to use like WDM
- More capacity can use
- The are STM links and a PDH links
- The multiplexing of the STM ….. The Lower level of SDH are STM
- The STM carried by the SDH
- Drop, add function,,,, can drop or add data at any time in the network
- Planning response on plan the all network and the new links ,, plan the frequncy , mode , power ,….. Operation response on Implementation new links then Monitor & follow up all the network
- LoS clear : when there is no obstacle route of the link else the site will be rejected
- Planning team use frequency, polarization ( H or V ) and radio mode to avoid the interference between the links. The received power must be equal to the link budget Fide margin: any lose in the link like contactors , cabal , free space , antenna ,…. Availability of the link bar one year
- The multi path and space diversity : happened at the long distance links …. Or we can say in SDH links