运营商迫切需要通过网络固移融合化解全业务竞争压力, 而为应对成本、带宽和生存性等接入域固移融合的挑战, 中国联通在ITU-T(国际电信联盟-电信组织)推动了G.metro建议。针对G.metro需求, 文章提出了一种固移融合接入网架构, 基于NFV(网络功能虚拟化)实现固移处理资源共享, 基于波分复用环路和PON(无源光网络)的结合平衡固、移接入差异, 以满足接入域简单和低成本的要求。

Telecom carriers urgently hope to relieve the competition pressure via fixed-mobile convergent network. In order to deal with the challenges in the fixed-mobile convergence related with bandwidth, survivability and cost, China Unicom has promoted G. metro standard in ITU-T. Based on the requirements of G. metro, an architecture of fixed-mobile convergent access network is proposed. It achieves sharing of resources based on NFV, and balances the differences between the fixed and mobile accesses based on the combination of WDM loop and PON, while keeping the requirements of simplicity and low cost.