为了增强在飞速发展的移动和社交网络领域的竞争，百度已经开始着手从其核心的搜索业务拓展向新的领域。
Baidu is beginning to diversify from its core search business to compete in the fast-growing segments of mobile and social networking.
IP多媒体子系统(IMS)作为固定接入和移动接入的统一核心控制网络，采用控制和承载、控制和业务相分离的机制，网络能力得到很大增强。
The IP Multimedia Subsystem (IMS), as the core control for fixed and mobile access, enhances network capabilities, by separating control functions from bearer and services.
网络承载业务的多样化和网系间关联性的增强，进一步突出了系统运行可靠性问题。
The network quality issue has also been extruded by more operations and more connections between networks.
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