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Showing posts from January, 2019

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   Universal Mo

Mobile Phone communication

Voice: Your phone --> Microphone (Mic), has Magnet, the sound waves moves in and generates electrical signal --> trasported to destination --> Speaker , magnet converts back this electrical signal to sound wave again.