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Showing posts with the label Network

RAN | O-RAN | Open RAN | Open Radio Access Network | Layers |

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 RAN Elements  Antennas  convert electrical signals into radio waves. Radios  transform digital information into signals that can be sent wirelessly and ensure that transmissions are in the correct frequency bands with the right power levels. Baseband units ( BBUs )  provide a set of signal processing functions that make wireless communication possible. Traditional baseband uses custom electronics combined with multiple lines of code to enable wireless communication, typically using the licensed radio spectrum. BBU processing detects errors, secures the wireless signal and ensures that wireless resources are used effectively. RAN Radio Resources  Radio Resources Management Techniques  Power control, scheduling, cell search, cell reselection, handover, radio link or connection monitoring, and connection establishment and re-establishment. bearer selection (Master Cell Group (MCG),  bearer, Secondary Cell Group (SCG) bearer, Split bearer),   ...

Mobile communication | 3G| 4G/LTE | 5G

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MS: Mobile station (mobile) BS: Base station(tower) BSC : Base station controller( tower controller, traffic management, tower down up management) MSC: Mobile Switching centre(manages multiple BSC has helpers like HLR: Home location Resister. 1. maintains each sim info, address 2. your pre paid post paid, data and balance info, sends msg of renewal RLR: Remote location register NSS: Network switching Station Terminologies 3GPP   3rd Generation Partnership Project  ( 3GPP )   is a collaboration between groups of telecommunications standards associations SAE System Architecture Evolution  core network architecture of 3GPP's LTE wireless communication standard LTE Long-Term Evolution is a standard for wireless broadband communication for mobile devices and data terminals, based on the GSM/EDGE and UMTS/HSPA technologies GSM EDGE UMTS...