Overview of Telecommunication networks
2 likes1,318 views
This document provides an overview of telecommunication networks. It describes the main components of radio access networks including 2G, 3G, BTS, NodeB. It also describes the core network components like MSC, SGSN, GGSN. It explains the OSI vs SS7 protocols stacks. It provides information on Sigtran which is SS7 over IP. Finally, it lists various call flows like location update, attach, originating and terminating calls for GSM and GPRS networks.
Overview of Telecommunication networks
- 3. Radio Acess Network : RAN 2G (GRAN) 3G (UTRAN) BSC RNC BTS NodeB A bis Iub MSC SGSN A Gb Iu-CS Iu-PS MS UE Um Uu
- 4. Core Network : MSC1 SGSN2 MSC2 VLR1 VLR2 SGSN1 GGSN PCRF BSC RNC CS PS HLR/AuC/EIR SMSC SCP USSD GW VMS Other PLMN GRX Internet MGW1 MGW2 Gr E C/D/F Gs Gp Gi Mc A Iu-PS Iu-CS Gb
- 5. OSI vs Signaling System N°7 (SS7) : Physical Data Link Network Transport Session Presentation Application Physical Ethernet IP TCP/UDP HTTP FTP DNS RIP SNMP OSI ModelTCP/IP Protocol stack MTP1 MTP2 MTP3 SCCP ISUP TCAP MAP CAP SS7 Protocol stack Point Code Global Title ( GT) PC + SSN BS SA PP
- 6. Sigtran ( SS7 over IP ) :
- 7. Call Flow : • GSM Location Update : http:// www.eventhelix.com/gsm/location-update/gsm-location-update-la-equipment-diagram.pdf • GPRS Attach : https://www.eventhelix.com/RealtimeMantra/Telecom/gprs_attach_pdp_sequence_diagram.pdf • GSM Originating call : http://www.eventhelix.com/RealtimeMantra/Telecom/GSM_Originating_Call_Flow.pdf • GSM Terminating call : https://www.eventhelix.com/RealtimeMantra/Telecom/GSM_Terminating_Call_Flow.pdf • GSM SMS MO & MT : http://www.eventhelix.com/gsm/originating-sms/gsm-mobile-originated-sms.pdf http://www.eventhelix.com/gsm/terminating-sms/#.VjuGkLcvcdU
- 8. Thank s