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Dialogic I-Gate 4000 Mobile Backhaul Session Bandwidth Optimizers
Cost-effectively and efficiently increase backhaul capacity


Dialogic I-Gate 4000 Mobile Backhaul Session Bandwidth Optimizers

Dialogic Products
I-Gate 4000 Session Bandwidth Optimizers
Dialogic I-Gate 4000 SBO MB
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Dialogic I-Gate 4000 SBO MBX
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Overview:

The Dialogic I-Gate 4000 Mobile Backhaul Session Bandwidth Optimizers (I-Gate 4000 MB SBO and I-Gate 4000 MBX SBO) are standalone systems that can optimize bandwidth and increase bandwidth capacity significantly in the backhaul segments of both 2G and 3G mobile networks. Because they optimize Abis and Iub data streams, including both ATM and IP-based Iub streams, the I-Gate 4000 MB or MBX SBO can provide a cost-effective and efficient strategy for increasing backhaul capacity, translating to significantly reduced capital and operation expenses. The I-Gate 4000 MB and MBX SBOs both offer several configurations and interface types, each of which has the same technical features.

I-Gate 4000 MB and MBX SBOs can also accept native IP and VoIP streams and transmit the combined optimized stream over TDM and/or IP. Along with Abis and Iub optimization, the I-Gate 4000 MB and MBX SBOs leverage 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.

Efficient Mobile Backhaul Optimization

Both the I-Gate 4000 SBO MB and I-Gate 4000 SBO MBX can optimize bandwidth in the backhaul segments of both 2G (Abis) and 3G (Iub) streams (ATM and IP-based). In addition to Abis and Iub optimization, either one can also be used to simultaneously take in VoIP and IP streams, to optimize these streams, and to transmit the optimized stream over Ethernet and/or TDM. See Figure 1 for an example of a sample configuration. Because units are placed within the current physical backhaul segment, optimizing with an I-Gate 4000 MB or MBX SBO is not as disruptive or costly as other alternatives for increasing bandwidth capacity, such as adding expensive leased lines, deploying fiber, adding microwave spectrum, or moving to Ethernet ring. I-Gate 4000 MB and MBX SBOs can also be used in addition to other options for increasing bandwidth capacity, and can coexist with such other options.

Figure 1. Dialogic I-Gate 4000 Session Bandwidth Optimizer Mobile Backhaul in a Backhaul Segment on a Mobile Network
Figure 1. Dialogic I-Gate 4000 Session Bandwidth Optimizer Mobile Backhaul in a Backhaul Segment on a Mobile Network

Key Performance Indicators

The I-Gate 4000 MB and MBX SBOs monitor and maintain Key Performance Indicators (KPI) by which mobile backhaul infrastructure performance is measured. These include delay, jitter, bit error rate, and availability. Adherence to prescribed KPIs is considered critical to maintaining high subscriber Quality of Experience (QoE) and to meeting Service Level Agreements (SLAs) for voice and data services.

Application Topologies

Both the I-Gate 4000 SBO MB and the I-Gate 4000 SBO MBX support a wide range of deployment strategies, including these topologies:

  • Point to Point (PTP)
  • Point to Multi-Point (PTMP)
  • Drop and Continue
  • Ring
  • Data Offload

Deployments may consist of the I-Gate 4000 SBO MB, the I-Gate 4000 SBO MBX or a mixture of both depending on needs.

Dialogic XMS Management System

The Dialogic xMS Management System provides the network operator with an enhanced Fault, Configuration, Performance and Security management tool to manage a network of I-Gate 4000 MB and/or MBX SBO terminals.

The xMS provides an easy to use web-based interface with a logical step-by-step approach to provisioning and event handling. The xMS provides a rich set of reports for the operator, depicting the traffic and operational information of I-Gate 4000 MB and/or MBX SBO terminals. It also provides alarm and event handling mechanisms to help the operator troubleshoot the network and isolate faults. Runtime configuration provides the ability to change the working parameters of I-Gate 4000 MB and/or MBX SBOs without the need to reset the terminal and disrupt traffic. Figure 2 shows a snapshot of the configuration and bandwidth usage.

Figure 2. Dialogic XMS Management System Showing a Snapshot of the Configuration and Bandwidth Usage for a Dialogic I-Gate 4000 Mobile Backhaul Session Bandwidth Optimizer
Figure 2. Dialogic XMS Management System Showing a Snapshot of the Configuration and Bandwidth Usage for a Dialogic I-Gate 4000 Mobile Backhaul Session Bandwidth Optimizer

Features and Benefits:


Features Benefits
Leverage 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
Each uses unparalleled bandwidth optimization algorithms and techniques to optimize mobile backhaul data sessions Reduces backhaul bandwidth usage by up to 50% without degrading original data sessions as shown in field trials
Both combine high-quality payload optimization and QoS protection techniques Can deliver substantial CAPEX and OPEX savings in 2G and 3G mobile backhaul segments
Each 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
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
Supporting a wide range of transmission infrastructures Can be used in terrestrial, satellite, and radio link installations, and over TDM or Ethernet links

Specifications:


Technical Specifications
Traffic Handling
Abis-over-TDM Traffic Optimization
  • Idle Channel Suppression
  • Silence Removal
  • HDLC flag removal
  • TRAU frame optimization
  • VAD enhancing optimization
  • Extended GPRS/EDGE optimization
  • Supported TRAU frames:
    – FR (13 kbps), EFR (12.2 kbps), HR (5.6 kbps), AMR (4.75/12.2 kbps) codecs
    – FR data, HR data, Extended data
    – O&M frames
Iub-over-ATM Traffic Optimization
  • ATM layer header optimization
  • Idle cell removal
  • AAL header optimization (AAL2 and AAL5)
Iub-over-IP Traffic Optimization
  • Iub Header optimization and aggregation for all protocol layers from Layer 2 up to and including RLC
  • Supported transport bearers
    – Iub DCH
    – Iub HS-DSCH
    – Iub E-DCH
    – Iub FACH
    – Iub RACH
    – Iub PCH
Abis-over-IP (Packetized Abis), Native IP and VoIP Optimization
  • Headers optimization and Packets aggregation
  • Statistical multiplexing
Auto Detection Automatic TRX allocation detection for Abis traffic and AAL for the ATM-based Iub traffic
Payload Aggregation
  • Static RTP Multiplexing
  • Statistical Multiplexing between all types of traffic
Traffic Congestion Control
  • Payload Priority Selection mechanism (PPS) for Abis
  • Tail Drop
  • DCAM
Embedded Cross-Connect Any-to-Any trunk DS0 channel For all configured DS0s
Pseudowire 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
Jitter Buffer
  • Adaptive
  • Up to 120 msec network jitter (for Abis traffic)
Silence Suppression (for Abis traffic) GSM-AMR, GSM 06.94
Traffic Links Supports: terrestrial links, microwave links, satellite links
Tunneling
  • Over GRE (Generic Routing Encapsulation)
  • Up to 16 GRE tunnels
QoS Protection
  • Tail Drop mechanism
  • Payload Priority Selection mechanisms
Mobile Network Interfaces 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
Gigabit Ethernet Ports
Interfaces
  • Compliance with IEEE 802.3z (optical)
  • Compliance with IEEE 802.3ab (electrical)
Connector
  • SFP -- Optical SM (1310 nm) or MM (850 nm) (LC connector)
  • RJ45 (electrical)
VLAN Tag
  • IEEE 802.1q
  • IEEE 802.1p (VLAN priority bits)
  • Up to 32 VLANs
BVI Support Supports BVI (Bridge Group Virtual Interface)
E1 Interface
Electrical characteristics Complies with ITU-T Recommendation G.703
Impedance 120Ω balanced
Frame structure Complies with ITU-T Recommendation G.704
Line code HDB3
CRC-4 and E bit use Configurable
Unframed format Supported for PWE3 (SAToP)
Return loss Complies with ITU-T Recommendation G.703 paragraph 6.3.3 and with ETSI ETS 300166
STM-1 Interface -- Optical
Characteristics ITU G.703, G.813, G.825, G.783, G.957 and Telcordia GR-253
STM1 Frame ITU G.707
Line code NRZ
STM1 Payload 63 E1 (AU4) or 3x21 E1 (AU3)
Fiber optic coupling Single Mode (1310 nm)
Receiver Maximum Input Optical Power -7dB
Receiver Sensitivity -29dB
Connector type LC SFP S1.1.1310 nm
STM-1 Interface -- Electrical
Characteristics ITU G.703, G.813, G.825, G.783, G.957 and Telcordia GR-253
STM1 Frame ITU G.707
Line code CMI
STM1 Payload 63 E1 (AU4) or 3x21 E1 (AU3)
Connector type SFP DIN 1.0/2.3 75 ohm according to CECC 22230
Capacity
Abis-over-TDM Traffic
Parameter I-Gate SBO MB E1 Links I-Gate SBO MB STM-1 Links I-Gate SBO MBX E1 Links
Max. number of E1 links 16 24 36
Max. number of Abis groups 24 24 36
Max. number of Abis groups per E1 2 2 2
Iub-over-ATM Traffic
Parameter I-Gate SBO MB E1 Links STM-1 I-Gate SBO MBX E1 Links
ATM UNI links 16 63 40
ATM links per IMA group 8 8 8
Number of IMA groups 8 32 20
Iub-over-IP or Abis-ver-IPTraffic Up to 200 Mbit/sec.
Redundancy and High Availability
Main Module
  • 1:1 MPTM, MPTH, or MPTI redundancy
  • 1:1 MPSX or HPTM redundancy
Power Supply
  • 1:1 DCPS redundancy
  • Load sharing
Power Feed 2 independent power feed connections through main and redundant DCPS
Fan Tray
  • 6 fans
  • Support for Fan Turbo mode
Ethernet Link Protection 1:1 (based on ELET/EHET/SOIE/ELS4/OPHT/OPS4 ports redundancy modes) (Ethernet Link redundancy (link protection) is handled at the BVI level for a BVI associated with more than one Ethernet link)
Availability 99.9995 % (five 9’s)
Additional High Availability Features
  • Hitless Hot-module swapping -- Hot extractions/insertions of modules
  • Hitless Hot Software Upgrade -- Non-traffic-affecting
  • Runtime configuration
Temperature Control
  • Built-in temperature sensors
  • Fan Turbo mode
  • Alarms: High & Extreme High Temperature
Clock standards
  • IEEE1588v2
  • SyncE
Clock Source
  • Two clock sources can be standard TDM input bitstreams of any configured TDM interface.
  • Two clock sources can be SyncE input of any configured Ethernet ports.
  • PTP clock can be configured as clock source in addition to TDM and SyncE sources in terminal configured PTP Mode = Slave (PTP VLAN does not support BVI).
  • In case of failure of all clock sources, Hold-Over on the last synchronized external clock source is performed (with an accuracy of ±1 PPB per 24 hours).
  • Internal clock with accuracy of Stratum 3E
Internal Timing Module
  • Operation modes: Complies with ITU-T recommendations G.812 and G.813
  • Jitter/Wander tolerance/transfer complies with AT&T TR-62411 and Telcordia GR-1244 Stratum 3 specifications
  • Jitter specifications comply with ITU-T G.823, G.824, and ANSI T1.101
Power
DC voltage input
  • -48 VDC / -60 VDC (nominal)
  • -40.5 VDC / -72 VDC (min/max)
Max DC current 7A
Max DC power consumption 284W
Physical Characteristics
Dimensions for I Gate SBO MB
  • Width: 435 mm (17.1”) - not incl. mounting brackets
  • Height: 44.45 mm (1.75” - 1U)
  • Depth: 448 mm (17.6”)
  • Weight: 5.7 kg (full redundant system)
Dimensions for I Gate SBO MBX
  • Width: 435 mm (17.1”) - not incl. mounting brackets
  • Height: 44.45 mm (1.75” - 1U)
  • Depth: 450 mm (17.7”)
  • Weight: 6.0 kg (full redundant system)
Installation
  • Can be installed in 19” or 23” cabinets or relay racks, or on top of any rigid infrastructure (desktop)
  • I Gate SBO MB can be installed as wall mount
Approvals, Compliance, and Warranty
Warranty Call your local Dialogic sales representative

 

Dialogic Products
I-Gate 4000 Session Bandwidth Optimizers
Dialogic I-Gate 4000 SBO MB
Contact us for pricing!
Dialogic I-Gate 4000 SBO MBX
Contact us for pricing!