RAD Data Communications : Saving Costs on 3G/UMTS Deployment
The last three years have been a roller coaster ride for 3G mobile communications, from the boom of optimism that led to fantastic auction prices paid out for 3G licenses to the bust of recession, mountains of debt and lack of investment capital for 3G infrastructure. The industry is finally moving forward with 3G, characterized by the gradual rollout of 3G services, the growth of 3G applications and the increased availability of 3G handsets.The business case for 3G still has to be made, however. Investments in 3G infrastructure will have to be undertaken in such a way as to minimize additional debt. 3G services, moreover, have to be rolled out without cannibalizing highly profitable SMS and voice applications.
Cutting Costs through Traffic AggregationCellular backhaul – transporting traffic within the operator’s network – is one place where cellular operators can cut costs. Operators can reduce line costs by aggregating traffic from several sites onto the same link, thus enabling the operator to lease fewer lines to deliver the traffic. Furthermore, implementing the same transport link for the co-located 2G base station (BTS) TDM traffic and 3G Node B ATM traffic also reduces costs.
RAD’s new ACE-3X00 line of products
is aimed specifically at reducing cellular transport
costs through traffic
aggregation. Inverse multiplexing over ATM (IMA) capabilities
enable the ACE-3X00 products to collect traffic from
several 3G sites and aggregate multiple circuits over
n x E1/T1 IMA links or thicker STM-1/OC-3 pipes to the
ATM access network. They also can deliver CES services
over AAL1 to connect GSM equipment over ATM, allowing
service providers to minimize costs by installing Node
Bs alongside 2G base stations and use the same device
for flexible aggregation and cost-effective transport
towards the core cellular network (BSC/RNC). The devices
offer the lowest price per port and smallest size compared
to existing solutions on the market. Adding to these
advantages, ACE-3X00 products provide a future-proof
migration path by providing Ethernet uplinks to be used
over next generation Ethernet/IP/MPLS transport networks.
This protects investment in equipment when the 3G network
migrates to future costeffective IP-based backhaul or
when new revisions of the UMTS standards (i.e., 3GPP
rev. 6) will be implemented.