电信运营商拥有大规模的语音用户数,但是随着OTT(Over The Top)业务的广泛使用,给运营商基础语音业务受到了冲击,每用户通话时长(Minutes Of Usage,MOU)持续降低且收入逐年下降。5G增强通话是基于5G的新一代通话产品,提供超高清、智能...电信运营商拥有大规模的语音用户数,但是随着OTT(Over The Top)业务的广泛使用,给运营商基础语音业务受到了冲击,每用户通话时长(Minutes Of Usage,MOU)持续降低且收入逐年下降。5G增强通话是基于5G的新一代通话产品,提供超高清、智能化、全交互三大能力,以期增加用户黏性并为基础通话业务带来新的潜在增长空间。介绍5G增强通话的业务类型和发展现状,然后从建设原则、网络架构、数据通道信令功能(Data Channel Signaling Function,DCSF)网元建设方案、资源池建设方案、网络安全及可靠性等方面探讨5G增强通话控制面网元DCSF的建设实施方案。展开更多
Real-time multimedia sharing in Consumer-centric Multimedia Network(CMN) requires usability anywhere, anytime and from any device. However, CMNs are usually located or implemented on application layer, which makes CMN...Real-time multimedia sharing in Consumer-centric Multimedia Network(CMN) requires usability anywhere, anytime and from any device. However, CMNs are usually located or implemented on application layer, which makes CMNs subjected to their fixed substrate security framework. A fundamental diversifying attribute for the customized security experiences of CMNs is pressing. This paper proposes a programmable network structure which is named Service Processing Chain(SPC) based on network function combination. The SPC is established by the ordinal combination of network functions in substrate switches dynamically, and therefore constructs a special channel for each CMN with required security. The construction and reconfiguration algorithms of SPC are also discussed in this paper. Evaluations and implementation show that above approaches are effective in providing multilevel security with flexibility and expansibility. It is believed that the SPC could provide customized security service and drive participative real-time multimedia sharing for CMNs.展开更多
文摘电信运营商拥有大规模的语音用户数,但是随着OTT(Over The Top)业务的广泛使用,给运营商基础语音业务受到了冲击,每用户通话时长(Minutes Of Usage,MOU)持续降低且收入逐年下降。5G增强通话是基于5G的新一代通话产品,提供超高清、智能化、全交互三大能力,以期增加用户黏性并为基础通话业务带来新的潜在增长空间。介绍5G增强通话的业务类型和发展现状,然后从建设原则、网络架构、数据通道信令功能(Data Channel Signaling Function,DCSF)网元建设方案、资源池建设方案、网络安全及可靠性等方面探讨5G增强通话控制面网元DCSF的建设实施方案。
基金supported by The National Basic Research Program of China (973) (Grant No. 2012CB315901, 2013CB329104)The National Natural Science Foundation of China (Grant No. 61521003, 61372121, 61309019, 61572519, 61502530)The National High Technology Research and Development Program of China (863) (Grant No. 2015AA016102)
文摘Real-time multimedia sharing in Consumer-centric Multimedia Network(CMN) requires usability anywhere, anytime and from any device. However, CMNs are usually located or implemented on application layer, which makes CMNs subjected to their fixed substrate security framework. A fundamental diversifying attribute for the customized security experiences of CMNs is pressing. This paper proposes a programmable network structure which is named Service Processing Chain(SPC) based on network function combination. The SPC is established by the ordinal combination of network functions in substrate switches dynamically, and therefore constructs a special channel for each CMN with required security. The construction and reconfiguration algorithms of SPC are also discussed in this paper. Evaluations and implementation show that above approaches are effective in providing multilevel security with flexibility and expansibility. It is believed that the SPC could provide customized security service and drive participative real-time multimedia sharing for CMNs.
