【資料名稱】：LTE backhauling deployment scenarios

【資料作者】：NGMN

【資料日期】：2011

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

With the introduction of LTE operators need to look at how the backhauling network, the network domain
that connects evolved NodeBs (eNBs) to MME and S/P-GW, is capable of adapting to the new
requirements, namely the adoption of a packet infrastructure, without disrupting the existing services.
This paper introduces some reference architectures, moving from a pure layer 2 topology to a full layer 3
one, discussing some elements to be considered in the design process of a network. The purpose of this
is to support operators in their migration from current architectures to new, packet-based backhaul
networks.
Since the migration phase might pose concerns to operators still engaged in 2G/3G deployment or in
maximizing the profitability of their existing networks, the scenarios described hereafter have been
designed considering, among the other aspects, possible paths to migrate from circuit based network,
and represent a kind of target architecture to aim at. Clearly, the path to an all packet-based backhaul will
depend on the specific market, technical environment and services an operator is operating or dealing
with.
Although this paper primarily focuses on LTE backhauling, some advanced topics are also referenced
and constitute the basis for further studies on LTE-A.