Christian Addeo

Backhauling solutions for LTE networks

LTE and LTE advanced mobile technologies impose quite new requirements to backhauling network and may call for revolutionary approaches, like fronthauling, in order to exploit the full potential of the technology. In this paper we synthesize main requirements for LTE and LTE advanced backhauling and fronthauling, along with the underlining rationale, and describe to some extent possible different network designs, both at L1 (fronthauling) and L2 / L3 (backhauling), comparing them against those requirements.

Protection switching in Packet Transport Rings

Transport networks are currently evolving from traditional circuit switching technologies toward packet switching technologies. Multi Protocol Label Switching (MPLS) Transport Profile (MPLS-TP) is an emerging technology addressing the need for packet transport networks. Protection Switching in Packet Transport Rings is an important area of work in the context of MPLS-TP in order to support the packet transport reliability requirements given the widespread adoption of ring topologies in metro transport networks. This paper reviews the use cases for MPLS-TP ring protection switching, how one of the proposed mechanisms, namely MPLS-TP Ring Protection Switching (MRPS), can address these requirements and some possible enhancements to the MRPS base mechanism.