• About this Guide
• Mobility Management Entity Overview
• Mobility Management Entity Configuration
• 128K eNodeB Connections
• 5G Capable SPGW Selection by MME
• Customized Interface Between MME/SGSN and GMPC
• 5G NSA for MME
• 5GS Interworking using N26 Interface Support
• Adding Cause Code 38 to Bulkschema Counters
• Adding Discrete eNB IDs to eNB Group in MME
• A-MSISDN Functionality
• Access Restriction based on Regional Zone Code
• APN Override
• APN-OI based P-GW Selection
• Auto Disable of Paging During MME Manager CPU Congestion
• Backup and Recovery of Key KPI Statistics
• Cause Code #66
• CE Mode-B Device Support
• Cell Broadcast Center - SBc Interface
• Cell Traffic Trace
• Closed Subscriber Groups
• Collision Handling for Path Update during Bearer Creation
• Controlling IMS Voice Over PS Session in S1 Mode
• Counters for Reason 50/51 on MME and TAI Level
• CSFB and SMS over SGs Interface
• CSFB for 1xRTT
• ERAB Release if any ERAB Switch Fails
• DDN Throttling
• Dedicated Core Networks on MME
• Default APN for DNS Failure
• Dynamic TAI List
• eDRX Support on the MME
• Emergency Bearer Services
• Enabling EMM and ESM Cause Code Mapping
• eNB Group Based Relative Capacity Transmission
• Enhanced Congestion Control and Overload Control
• Enhanced Multimedia Priority Service (eMPS)
• Failure Counters for CSFB MT Counters
• Enhanced Whitelisting in MME
• Enhanced Event Logging
• Events Monitoring
• Excluding SGWs During Relocation Procedures
• Foreign PLMN GUTI Management
• GMLC Interworking Support
• GTP-C Load and Overload Control on MME
• GTPV1/V2 Echo Support for Peer MME and SGSN
• GUTI Re-allocation
• Heuristic and Intelligent Paging
• HSS and AuC Interworking Configuration Enhancement
• HSS-based P-CSCF Restoration
• Idle-mode Signaling Reduction
• IMEI Check during Periodic TAU Support for NB IoT Devices
• Implicit Update Location to HSS
• IMSI Manager Overload Control
• IMSI Manager Scaling on the MME
• No IMSI or MSISDN Included in LRR for VoLTE EM Call from User of Foreign Network
• Integrity and Confidentiality Algorithms for UE
• IPNE Service
• Limiting the Number of SGWs Tried
• Load Balancing and Rebalancing and VoLTE Offloading
• Local Emergency Numbers List
• Location Services
• Mapped-UE-Usage-Type IE Support in MME
• MBMS for MME (eMBMS)
• MEC Location Management
• MME Masked IMEISV
• MME Bearer Request Message During Handover Process
• MME Clear Subscriber Enhancement
• MME MDT Management Support
• MME-MEF Interface
• MME Support for EN-DC SON Configuration Transfer IE on S1-AP
• MO Voice Call and MO Exception Data Support
• NAS Signaling Security
• NB-IoT and Low Power Session Counters
• 5GS Interworking using N26 Interface Support
• Operator Policy
• Operator Specific QCI
• Operator Policy Selection Based on IMEI-TAC
• Overcharging Protection
• Paging Priority IE Support
• Paging Statistics per TAI
• Power Saving Mode (PSM) in UEs
• QoS Profile Support
• S10/S3-S11 Interface Separation
• S13 Additional IMEI Check
• SBc Message Size
• Selective Authentication
• Sending EMM Information during Periodic TAU
• Session Tracing
• SGs SCTP Association Counters
• S-GW Address Based Combined SPGW Selection
• S-GW Blacklisting on the MME
• S-GW Restoration
• SGSN-MME Combo Optimization
• Short Message Service
• Single Radio Voice Call Continuity
• Skip APN Redirection for IMS APN
• Handling Call Drop in Smart Watch and Multi-SIM Devices
• SRVCC for 1xRTT
• State-Location Information Retrieval Flag
• Support for 187 and 188 Information Element Types on S5 and S8 Interfaces
• TAI-based Routing for 20-bit and 28-bit eNB ID
• Target MME Load Balancing During Handover
• Timer-based GBR Bearer Deactivation
• UDPC2 Support for MME/SGSN
• UE Context Retention
• UE Relocation
• Uneven Distribution of eNodeBs in MME Managers
• VLR Management
• Troubleshooting the MME Service
• Timeout Exclusion from CSFB Counters
• Monitor the MME Service
• Engineering Rules