Cisco Cisco ASR 5000

Idle Mode Signalling Reduction on the S4-SGSN

▀ How ISR Works

▄ SGSN Administration Guide, StarOS Release 18

Figure 44. 2G ISR Activation by the MME

Standards Compliance

The 2G ISR feature complies with the following standards:



TS 23.060 version 10: 3rd Generation Partnership Project; Technical Specification Group Services and System

Aspects; General Packet Radio Service (GPRS); Service description; Stage 2.



TS 23.401 version 10: 3rd Generation Partnership Project; Technical Specification Group Services and System

Aspects; General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access
Network (E-UTRAN) access.



TS 23.272 version 10: Universal Mobile Telecommunications System (UMTS); LTE; 3GPP Evolved Packet

System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-
C); Stage 3.



TS 29.274 version 10: Universal Mobile Telecommunications System (UMTS); LTE; 3GPP Evolved Packet

System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-
C); Stage 3.