Mobile backhaul now represents more than 30 percent of mobile service provider operating costs, says Juniper Networks. If one looks at opex and adds depreciation, backhaul can represent 70 percent of on-going costs.
Up to this point, most of the mobile backhaul has been provided by T-1 lines or DS-3 connections, in some cases.
But deployment of 2.5G and 3G technology has lead to an increased backhaul requirement, to say nothing of coming 4G requirements. So where base stations that previously required one or two T1/E1’s for backhaul now need four to six T1/E1’s. The result has been a 200 percent to 400 percent increase in required backhaul capacity and its associated increase in operating expense costs.
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