Networking

MMBI White Paper on Use of MPLS in LTE

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Executive Summary

With the skyrocketing rise in the number of mobile subscribers across the globe, mobile backhaul has become more relevant than ever before. Mobile backhaul is a critical part of the mobile network that links the Radio Access Network (RAN) and the mobile core networks. Service providers are rapidly moving to Long Term Evolution (LTE), the next generation mobile technology to satisfy the growing demand of bandwidth and marginal overall growth in average revenue per user. LTE has also proved to be very efficient in dropping the cost of bandwidth, improving service provisioning, facilitates flexible use of frequency bands, and abridges the network architecture. Ethernet services are also increasingly adopted for implementing mobile backhauling. LTE supports an all IP RAN design and IP technology with Multiprotocol Label Switching (MPLs) that can generate the same Quality of Service (QoS) features to Ethernet services for mobile backhaul as conservative SONET/SDH or ATM/TDM technologies. MPLs are used by numerous service provider deployments for ensuring good connection availability between two end points and more cost effective control of services. It is a prime technology that amalgamates different kinds of backhaul traffic and provides several migration options to service providers, enabling service providers to pursue the path that best suits their requirements and operating environment. MPLs are therefore capable of transporting any service to anywhere thereby offering better returns on investment to service providers. This paper talks about the use of MPLs in LTE backhaul networks.

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