WiChorus Smart GGSN
The exponential growth of mobile broadband data has changed the functional and performance requirements of the Mobile Packet Core for HSPA and HSPA+ networks, as well as their deployment models. This rapid growth in mobile broadband traffic has direct implications on operational cost and profitability of mobile networks. WiChorus Smart GGSN is purpose-built to improve the profitability of HSPA and HSPA+ networks, in addition to providing a future-proof path to LTE PDN Gateway on the same 4G platform.
WiChorus Smart GGSN, built on powerful SmartCore 4G platforms, is designed to address today’s HSPA/HSPA+ and tomorrow’s LTE mobile packet core needs. SmartCore platforms provide high multi-dimensional performance, cross-layer optimizations to reduce OPEX and content monetization capabilities to generate new revenues. Using the direct tunnel support, WiChorus Smart GGSN can also enable a flat network architecture, which can reduce the number of functional elements in your 3G network’s data path, reduce CAPEX, reduce latency and increase overall network performance.
Fig 1: WiChorus Smart GGSN in a typical 3GPP Rel 4,5 or 6 network
• 4G performance to future proof your HSPA/+ networks
• 3GPP Releases 4, 5, 6 & 7 compliant
• Direct tunnel support to build a flat 3G network
• Support of SAE GW on the same platform
• Seamless mobility support between 3G accesses using GTPv1
• Support for GERAN, UTRAN and I-WLAN TTG mode
• Multiple Primary and Secondary PDP Contexts
• Advanced accounting & billing, based on RADIUS and GTP’
• Extensive flow-based architecture for QoS
• Integrated content management & policy enforcement
• Diameter-based interface with PCRF
• Granular application and service control
• Integrated peer-to-peer traffic management
• Internet Traffic breakout on the Iu-PS interface
• L2TP connectivity to external PDN
• Stateful N:1 High Availability
• High transaction capability with low latency
• Available in Multiple Form Factors
Adopting to Flat Future:
As recognized by 3GPP Rel 8 (LTE) and WiMAX, the mobile broadband requires a flatter network. WiChorus Smart GGSN’s direct-tunnel capabilities can enable a flatter 3G network, appropriate for building true broadband network, that scales gracefully with traffic needs.
With flat 3G network,
• The increase in data capacity per subscriber does not require additional investments in other network elements like SGSNs.
• Cost of IP oriented transport could be low, with legacy ATM oriented SGSN’s out of the data path.
• The simplified IP network scales much better to cater to higher performance needs.
• Overall system latency is reduced, improving user experience.
• Upgrading to LTE becomes a simpler step, as LTE also has an identical flat network architecture
• Flat network architecture is 3GPP standards compliant, in Rel 7. No new device interoperability is needed.
Fig 2: WiChorus Smart GGSN with Direct Tunnel
In essence, flat architecture combined with the very high performance WiChorus Smart GGSN, your 3G network would be ready to deal with mobile data’s exponential growth. Transition to LTE's flat network becomes easier.
Fig 3: Simple transition to LTE, on the same SmartCore platform
Features:
3GPP Releases 4, 5, 6 & 7 compliant
Interfaces
• Gn interface using GTPv1
• Gx interface using Diameter
• Ga
• Gi
• Gc using GTP
Mobility
• GTPv1 for seamless mobility across GERAN and UTRAN access networks
I-WLAN
• Terminates Gn interface from release-7 TTG
• APN restriction for I-WLAN RAT
QoS
• Extensive hierarchical QoS policing and shaping
• Differentiated Service Code Points (DSCP) support
• PCEF
• Release-7 3GPP PCC support
• Secondary PDP Contexts with support for multiple TFTs
Content Management
• Service differentiation based on flexible and extensive policy controls
• Identification and stateful management of popular peer-to-peer applications
• Traffic statistics and accounting based on content, applications and vendor partnerships
• Uplink and Downlink Service Level Gating
• Uplink and Downlink Rate Enforcement
Accounting
• Per subscriber, per APN, per flow accounting statistics
• Time and volume based accounting
• Offline charging with both RADIUS and GTP’
• Online charging for roaming scenarios
• Diameter Credit Control
• CDR Generation
• Enhanced charging
Routing and IP Protocols
• OSPF v2, RIP v2
• IP in IP tunneling, including IPv6/IPv4, IPv6/IPv6, IPv4/IPv6
• GTPv1 user plane
Subscriber Authentication and Security
• RADIUS support for authentication and authorization
• Access Control Lists for filtering
IP Address Assignment
• Locally administered address pool
• Based on subscriber’s IMSI, IMSI-based NAI, APN or domain
• Flexible policies for dynamic address assignment
• DHCPv4 and DHCPv6 server functions
• Interface with DHCP and/or AAA
• Dual Stack Support
3GPP Architecture Features
• Direct tunnel Support, in addition to legacy deployment models
• IMSI blocking based on MCC, MNC or individual IMSI information
• Path Management
• Release-7 MBMS Support
• PPP Regeneration
• P-CSCF Discovery
Management & Administration
• CLI
• SNMP v3
• EMS with full configuration, monitoring, alarm management
and performance management [FCAPS]
Platform Support
• SC 1400 (14-slot modular carrier-grade platform)
• SC 600 (6-slot modular carrier-grade platform)
• SC 100: Appliance form factor
WiChorus Gateway GPRS Support Node (GGSN)
