3G/4G mobile backhaul over PDH microwave connections
While radio networks transition to new packet technologies, existing PDH infrastructure continues to play a significant role in cellular backhaul. For example, most of today’s microwave backhaul connections remain TDM-based. Without appropriate equipment that can offer cross-generation support, cellular operators and transport providers could face rollout delays for mobile broadband services, putting a strain on their profitability.
RAD’s RICi demarcation devices enable operators to utilize widely available TDM infrastructure for next generation mobile connectivity without heavy investments in new backbone connections. Figure 1 illustrates how these devices transport HSDPA cellular Ethernet traffic from an IP NodeB to the RNC (radio network controller) over TDM radio links in a point-to-point deployment. Employing standard Ethernet over NG-PDH protocols, the RICi demarcation devices offer bundled access rates of up to 32 Mbps and optimize line utilization and throughput. By providing a smooth migration path to IP RANs (radio access networks), these devices support substantial increase in data traffic volumes for HSDPA services while protecting operator margins.
Features
Benefits
Ethernet bridging over TDM
Lower CapEx and Opex and quick activation of NGN services
Up to 16 x E1/T1 uplink interfaces
Full utilization of common TDM radio capacity
Fault propagation
Service resiliency
Complete Ethernet OAM Suite
Standards-based performance monitoring with extended statistics and reporting capabilities
Figure 1: HSDPA mobile connectivity over PDH microwave links
