I-Gate® 4000 Session Bandwidth Optimizer Mobile Backhaul
The Dialogic® I-Gate® 4000 Session Bandwidth Optimizer Mobile Backhaul (I-Gate 4000 SBO MB) is a standalone system that can optimize bandwidth and increase bandwidth capacity significantly in the backhaul segments of both 2G and 3G mobile networks. Because it optimizes Abis and Iub data streams, including both ATM and IP-based Iub streams, the I-Gate 4000 SBO MB can provide a cost-effective and efficient strategy for increasing backhaul capacity, resulting in significantly reduced capital and operation expenses.
The I-Gate 4000 SBO MB can also accept native IP and PCM streams and transmit the combined optimized stream over TDM and/or IP.
Along with Abis and Iub optimization, the I-Gate 4000 SBO MB leverages statistical multiplexing and grooming techniques developed by Dialogic that have been shown in field trials to typically double the capacity of backhaul links while preserving the quality and integrity of the original data traffic through Quality of Service (QoS) protection techniques.
Features
Benefits
Leverages special bandwidth and IP packet rate optimization technologies developed by Dialogic, while preserving the quality and integrity of the original data traffic
Enables cost-effective optimization and increased capacity for mobile backhaul segments in 2G and 3G mobile networks
Combines high-quality payload optimization and QoS protection techniques
Reduces backhaul bandwidth usage by up to 50% without degrading original data sessions as shown in field trials
Combines high-quality VoIP payload optimization and QoS protection techniques
Can deliver substantial CAPEX and OPEX savings in 2G and 3G mobile backhaul segments
Supports multiple topologies, such as point to point, point to multi-point, drop and continue, data offload, and ring
Works with a wide range of mobile backhaul designs and topologies for effective optimization
99.99995% (six 9s) availability
Provides high reliability at both the terminal and network level
Supports wide range of transmission infrastructure
Can be used in terrestrial, radiolink, and satellite installations
GUI-based management system with runtime reports showing traffic mix, comparative bandwidth, and QoS behavior
Enables ease of operation and supplies a snapshot of important statistics on demand
99.9995% (five-nines) availability through a fully redundant 1 RU platform
Provides high reliability in a small footprint at the hardware, software, and network levels
Supports a wide range of transmission infrastructures
Supports a wide range of transmission infrastructures
Technical Specifications
Traffic Handling
Abis Interface Optimization
Special VAD-enhancing optimization
Patented technology for Smart Payload Priority Selection (PPS)
Silence and Idle patterns removalAll GSM voice codec and data types (HSCSD, GPRS, EDGE)
Up to 12 E1 lines supported
ATM-Based Iub Interface Optimization
ATM header optimization
Idle cell removal
AAL header optimization
IP-Based Iub Interface Optimization
Header optimization and aggregation for all layers up to the RLC
Native IP and VoIP Optimization
Header optimization and packet aggregation
Statistical multiplexing
PSTN and PBX Optimization
Special VAD-enhancing optimization
Patented technology for Smart Payload Priority Selection (PPS)
Silence and Idle pattern removal
Bearer
Over IP network or PSTN (using Gigabit/Fast Ethernet ports) — IP-GRE
Over TDM network using PPP/MLPPP/HDLC
Combined IP and TDM networks
Auto Detection
Automatic TRX allocation detection for Abis traffic and AAL for ATM-based Iub traffic
Payload Aggregation
Static RTP multiplexing
Statistical multiplexing among all types of traffic
Traffic Congestion Control
Payload Priority Selection (PPS) mechanism for PBX and Abis
Tail Drop
Embedded Cross-Connect
Any-to-any trunk DS0 channel for all configured DS0s
Pseudo-Wire Emulation Edge-to-Edge (PWE3)
SAToP (Structure-Agnostic TDM over Packet ) — RFC 4553
CESoPSN (Circuit Emulation Service over Packet-Switched Network) — RFC5086
QoS Management
Multiple queues management
IP packet classification and marking
Multiple congestion avoidance
Scheduling and Shaping
Policing
H-Qos
QoS Protection Control
Operator-configurable threshold
Jitter Buffer
Adaptive
Up to 60 msec network jitter for Abis traffic
Silence Suppression for Abis
•SM-AMR, GSM 06.94
Voice Codecs
G.711 PCM @64kbit/sec (A-law and µ-law)
G.729, CS-ACELP @ 8 kbit/sec
G.723.1, ACELP / MPMLQ @ 5.3, 6.3 kbit/sec
GSM-AMR (all rates)
Traffic Links
Terrestrial, microwave, and satellite
Mobile Network Interface Protocols
Abis Interface
GSM R99, 3GPP 08 Series specifications
Codec: FR, EFR, HR, AMR (all rates)
Data services: EDGE, GPRS, HSCSD
Iub Interface (ATM and IP Based)
3GPP specifications
Data services: HSPA, DCH-R99
TDM Network Interfaces E1 Interfaces
Electrical Characteristics
Complies with ITU-T Recommendation G.703
Impedance
120O balanced
Frame Structure
Complies with ITU-T Recommendation G.704
Line Code
HDB3
CRC-4 and E Bit Use
Configurable
Return Loss
Complies with ITU-T Recommendation G.703 paragraph 6.3.3 and with ETSI ETS 300166
T1 Interfaces
Electrical Characteristics
Complies with ITU-T Recommendation G.703, ANSI T1.102
Impedance
100O balanced
Frame Structure
Complies with ITU-T Recommendation G.704, ANSI T1.107
Multi-Frame
SF (12 frames)/ESF (24 frames) — configurable
Line Code
AMI/B8ZS — configurable
TDM Network Connectivity
E1 or T1
Up to 16 E1/T1 links
TDM Bearer Characteristics
WAN Protocol
Standard MLPPP (RFC 1990)
HDLC
TDM Interfaces
E1/T1
TDM Bearer Capacity
Physical links: Up to 16 E1s/T1s
IP over TDM links (logical links): Up to 8 of all types (MLPPP or HDLC)
Channel Groups
Up to 8 Channel Groups per system
Up to 8 Channel Groups per MLPPP link
TDM Channels per Channel Group – Minimum 4
Delay
Maximum supported delay between Channel Groups of an MLPPP link: 10 msec
Maximum trunk to trunk delay (for Abis): 20 msec. (end-to-end)
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