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Self-built cellular networks generally rely on fiber infrastructure for the core network and a mixture of fiber and microwave technology for the Radio Access Network (RAN). The self-built RAN is usually divided into the low RAN (from the cell site up several hub levels), and the high RAN (from high hubs to the first core site and the BSC, RNC and MSC). The low RAN is based mainly on star segments of PDH microwave links with 4/8/16 or more E1s per link, and the high RAN on SDH microwave star or ring topologies.
Rollout of 3G networks and services dramatically increases capacity delivery to the end user, and demands an upgrade of the RAN infrastructure to support increased traffic demands.
However, backhaul bottlenecks are generally encountered at microwave links when upgrading for 3G rollouts.
In the low RAN, upgrading microwave links to support increased capacity may entail expensive un-installation of old and reinstallation of new equipment. The need for additional spectrum for higher capacity may in some cases prevent such an upgrade or in other cases may increase the expenses surrounding the upgrade.
In the high RAN, microwave SDH rings often reach full capacity with increased 3G traffic. To open up the ring bottleneck, fiber solutions have to be deployed between ring nodes - cutting the ring into two or more rings, and multiplying capacity delivery accordingly. Solutions that involve fiber deployment generally require significant investment and long lead time for operation.
Celtro's DynaMate solutions increase the effective capacity delivery of the existing self-built network. Via traffic optimization and statistical multiplexing of all 2G and 3G traffic, DynaMate products multiply capacity and open up network bottlenecks.
DynaMate products deployed at the cell site or hubs in the low RAN increase the network's effective capacity through the low RAN star links, the high SDH star and ring networks and up to the RNC and MSC sites, thus maximizing return on investment in the self-built network.
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