RAD EXPANDS ITS PSEUDO WIRE ACCESS SOLUTIONS TO INCLUDE 3G BACKHAUL OVER BROADBAND WIRELESS & DSL
28 February 2006 - RAD Data Communications Ltd

"With the emergence of 3G networks, operators must now simultaneously support the divergent technological demands and applications of multiple cellular generations," states Gaby Junowicz, Director of Business Development for Cellular and Wireless Networks at RAD Data Communications. "Legacy TDM networks, for example, are used to transport 2G and 2.5G backhaul, while 3G backhaul, which is currently transported over TDM and ATM infrastructure, is expected to eventually migrate to packet-switched Gigabit Ethernet, IP and MPLS networks," Junowicz explains. "Considering the major impact that backhaul has on capital expenses and operating expenses, cellular operators and service providers are constantly on the lookout for innovative solutions that make more efficient use of the transport bandwidth."

Backhauling 3G ATM Cellular Traffic over PSN InfrastructureRAD's ACE-3x00 series of multiservice aggregation units is the first such solution in the market that simultaneously supports TDM and ATM over packet-switched networks. "By incorporating its unique pseudo-wire capabilities into the ACE-3x00 series, RAD has provided operators and service providers with a future-proof cellular backhaul migration path to tomorrow's Ethernet/IP/MPLS networks," Junowicz notes.

Furthermore, these benefits afford mobile operators with a greater ability to manage network operations and reduce Opex. "With their advanced shaping and scheduling capabilities, the pseudo-wire enabled ACE-3100, ACE-3200 and ACE-3400 permit operators to implement overbooking strategies, allowing them to optimize network utilization, avoiding congestion in the packet transport," Junowicz adds.

Free Backhaul over Unlicensed BandwidthPseudo-wire capabilities have also been added to RAD's Airmux-200, a carrier-class, high capacity, affordable wireless multiplexer that connects E1/T1 and Ethernet networks point-to-point over a wireless link. Compliant with FCC, CAN/CSA and ETSI regulations for license-exempt transmission, the Airmux-200 operates over 5.7–5.85 and 5.25–5.35 (FCC, CAN/CSA) GHz, 5.4–5.7 (ETSI) GHz, 4.9 GHz (FCC), and 2.4 (ETSI and FCC) GHz bands.

"This has generated enormous interest among vendors of base stations," Junowicz says. "Since unlicensed bandwidth is free, backhaul over unlicensed bandwidth has the potential to save cellular operators enormous amounts of money," he explains. "The wireless environment is characterized by interference, bursting and latency issues, everything the circuit switched wireline environment is not," Junowicz stresses. "An accurate E1/T1 clock recovery, low round-trip delay and high link availability, however, allow the Airmux to overcome these challenges and position it as a perfect carrier-class wireless transmission system not only for cellular backhaul, but for connecting remote enterprise locations, broadband Last Mile services and hotspot backhauling as well."

Pseudowire over DSLTo complement its access portfolio, RAD also has incorporated its pseudo-wire technology into its Link Access line of Integrated Access Devices. Pseudowire emulation over DSL lines enables carriers deploying RAD's Link Access IADs to roll out high revenue leased line and cellular backhaul services over IP DSLAMs and evolving Ethernet/IP/MPLS networks.

Leading Industry EffortsRAD is leading industry efforts to bridge the gap between services originating in legacy networks and their transport over next generation packet switched backbones. RAD has made significant contributions in standardizing the transport of legacy voice and data traffic using pseudowires over IP/MPLS networks. RAD edited and contributed to two ITU-T recommendations, Y.1413 for TDM-MPLS interworking and Y.1414 for voice services over MPLS.

By using pseudo wire as an access solution for their new packet-switched networks, carriers can avoid customer churn by continuing to support popular and profitable legacy services while, at the same time, extend the NGN right up to the customer premises. "As carriers pursue their ambitious plans to unify network infrastructure, they want to be certain that no customer will be left behind," Junowicz says. "Cross-generation access based on pseudowire service emulation technologies is a concept whose time has arrived," he concludes. "RAD's motto is 'any service over any infrastructure', and our product portfolio demonstrates our commitment to providing a pseudowire solution over each and every packet technology."

http://www.rad.com

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