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THE CHALLENGE: Migration to IP Backhaul
The expense and complexity of increasing backhaul capacity over traditional ATM or TDM-based transport and the difficulties of maintaining Quality of Service, have led providers to migrate to Ethernet-based solutions. Celtro switching solutions allow providers to seamlessly migrate backhaul traffic to an all IP RAN - which can easily scale network bandwidth to gigabits-per-second, without massive infrastructure investments.
THE SOLUTION: Simplify Migration to IP
To achieve a low-cost, low-latency, flexible network that can handle in-demand mobile broadband services, operators need to adopt an IP-based mobile backhaul network architecture. IP/MPLS networks are streamlined and simple, using a small number of elements to save both OpEx and CapEx, yet retain the ability to move high volumes of data without a commensurate increase in the cost of service delivery. Supporting both mobile and Metro Ethernet IP access networks, flexible IP/MPLS networks allow mobile operators to deliver broadband services that are competitive in price and performance. DynaMate all-in-one-box solutions from Celtro enable simple migration of all 2G, 3G HSPA and WiMAX traffic over existing network infrastructure, enabling the operator to gradually changeover backhaul infrastructure from ATM or TDM to IP/MPLS.  How does it Work?
- Migrating TDM RAN to packet-switched technologies - In 2G networks, operators migrate their GSM backhaul to packet-switched not only to accommodate high data rates but also to lower backhaul costs. With the rapid introduction of Ethernet lease lines and packet-switched infrastructure, the transport cost of packet-switched traffic has become more attractive. Celtro has developed innovative switching solutions that handle the challenges of this migration, including traffic emulation, bandwidth adaptation, MPLS LSP settings, and the network synchronization essential for enabling GSM (Abis/Ater) backhaul over packet-switched technologies.
- Migrating ATM RAN to packet-switched technologies - One way mobile operators can increase network flexibility and reduce operating costs, while still protecting the quality of voice services, is by migrating ATM RAN to packet-switched technologies. Celtro’s innovative switching technologies enable migration of 3G traffic to MPLS architecture by emulating ATM traffic from the cell-site, carrying it over Ethernet or PDH/SDH links using IP/MPLS LSPs. At the edge of the backhaul network, DynaMate switches receive MPLS streams and terminate MPLS sessions, de-encapsulating the various traffic types into their original format (3G-ATM, 2G-TDM,) and forwarding them to their destination (3G-RNC, 2G-MSC).
- Leveraging Carrier Ethernet - In mobile backhaul networks, leveraging carrier Ethernet resources - especially those of a parent or sister company with wireline network assets - can result in significant savings, eliminating the need to build and maintain two separate networks. Further, most new radio elements (NodeB/RNC) have native Ethernet switching capabilities, allowing them to seamlessly merge with Ethernet wireline networks. Celtro DynaMate solutions allow a VPLS network to support mobile backhaul services, sharing the Metro Ethernet infrastructure with wireless networks.
THE ADVANTAGES: Field-proven, All in One Box Savings
- Capacity: better backhaul performance, more capacity and service delivery over existing infrastructure
- Service Delivery: rapid service introduction, while guaranteeing peak rate Quality of Experience (QoE) – maintaining customer satisfaction and streamlining revenues
- Flexibility: optimal convergence of all 2G, 3G and HSPA traffic over one unified and dynamically shared IP/MPLS network - guaranteeing end-to-end QoS and providing network synchronization to the cell sites
- Cost: lower network OpEx and CapEx
- Future-Proof: smooth, one-box software-based, adaptive migration from ATM, through HSDPA offload, to all-IP RAN; easy adaptation to new radio and backhaul technologies
- Trusted: Field-proven solution with largest installed base in the market
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