对中国发展宽带接入及光纤的思考

宽带接入发展趋势正从传统的铜线接入向。有线铜退光进，无线宽带移动化，有线无线相互补充。实现无缝接入。的目标演进。光纤宽带是固网宽带接入发展的必然选择。光接入面临多重挑战，需要综合考虑建设与运营维护、无源光网络光线路终端容量设置、光纤宽带对无源光网络（PON）光网络单元的要求、光纤宽带设备的管理、综合业务承载能力、多业务承载对业务控制层的影响等问题。

Thinking on Development of Broadband Access and Optical Fiber in China

The broadband access system is evolving from traditional copper wire access toward the goals of optical fiber substitution for copper wire, mobility of wireless broadband, fixed and mobile complementing, and fulfillment of seamless access. Optica broadband is an inevitable selection of a fixed network to develop its broadband access. Optical access is facing multiple challenges in system construction and operation and maintenance, terminal capacity settings of optical lines in Passive Optical Networks （PONs）, the requirements of optical broadband on optical network elements in PONs, the management of optical broadband equipment, capability of bearing comprehensive services, and impacts of multi-service bearing on the service control layer.