LTE EPC Solution
EPC (evolved packet core) is the all-IP mobile core network for 3GPP LTE. Besides enabling IP connectivity for the LTE network to the core IP network, LTE-EPC also enables seamless mobility for mobile users.
ASTRI, with deep understanding of LTE and EPC, offers the LTE-EPC solution comprising three logical network entities: Mobility Management Entity (MME), Serving Gateway (S-GW) and Packet Data Network Gateway (P-GW).
Highlights of ASTRI's LTE EPC Solution
- All-IP flat network architecture
- Separation of control plane and data plane
- End-to-end QoS management and service control through policy control and charging (PCC) architecture
- Seamless mobility support
- Authentication, authorization and data integrity
- Migrate to support both 3GPP and Non-3GPP access
MME Platform and Features |
- Hardware Platform
- MicroTCA-based Intel processor blades (Core2Duo above)
- AdvancedTCA-based Intel processor blades (Xeon above)
- TIPC-based framework for reliable communication
- N+1 (N Active + 1 Standby) redundancy
- High availability compliant to SAF standard
- Automatic failover
- CLI via Telnet
- Web interface via HTTP/HTTPS
- Fault management
- Operating system: Linux
- Up to 100K on-line subscribers
- NAS signalling and security (authentication, authorization, data integrity)
|
- Subscriber attach/detach
- Tracking area update (TAU) and TAU list management
- Mobility management
- Session management
- Roaming control
- Location updates
- Radio security control
- Trigger and distribution of paging messages
- SAE bearer set-up and release
- QoS negotiation
- MME, serving GW and P-GW selection
- Warning message transfer
- Paging and UE access
- Inter-CN node signalling
- 3GPP interfaces: S1-MME, S11, S6a, S10, S13
|
S-GW/P-GW Platform and Features |
- Hardware Platform
- S-GW and P-GW share same HW
- MicroTCA-based Cavium processor blade
- AdvancedTCA-based Cavium processor blade (e.g. Radisys 7220)
- N+1 (N Active + 1 standby) redundancy
- High availability compliant to SAF standard
- CLI
- Web interface via HTTP/HTTPS
- Operating system: Linux OS plus Cavium Simple executive data plane
- System Capacity
- MicroTCA platform: 20K on-line subscribers
- AdvancedTCA platform: 30K on-line subscribers
- IPv4/IPv6
|
- Link aggregation
- Routing/forwarding
- Port-based statistics and UE-based statistics
- TIPC-based framework to provide reliable communication
- Automatic failover
- Local mobility anchor point for switching user data path in case of HO
- Mobility anchoring for Inter-3GPP mobility
- Idle mode packet buffering
- Per user-based packet filtering
- Charging & lawful interception
- UE IP address allocation
- Packet routing/forwarding, screening
- Policy enforcement
- Transport level packet marking
- Static and dynamic QoS
- Default and dedicated bearers
- 3GPP interfaces: S1-U, S5, SGi, S11, Gx
|
Overview of ASTRI’s LTE EPC and Small Cell Gateway
Download further information:
