The Next Generation Network (NGN) (Softswitch) is a universal multi-service network designed for the transmission of voice, video and data on a packet switching basis. It is based on the IP bearer network. This articl...The Next Generation Network (NGN) (Softswitch) is a universal multi-service network designed for the transmission of voice, video and data on a packet switching basis. It is based on the IP bearer network. This article analyzes the features of different bearer modes in the respects of QoS, security and resource utilization. In order to bear NGN, QoS requirements should not be ignored. For this reason, QoS requirements are described from the view of delay, jitter, packet loss rate and bandwidth. At the end of this article, ZTE' s networking solution is given.展开更多
The article introduces China Unicom's valuable experience obtained in the construction and operation of its IP-based data and fixed services network. In the construction of the network,China Unicom aimed at the qu...The article introduces China Unicom's valuable experience obtained in the construction and operation of its IP-based data and fixed services network. In the construction of the network,China Unicom aimed at the quick deployment of telecom-level integrated services by building up multi-level metropolitan area networks and access networks;in the operation of the network,China Unicorn made great efforts with equipment manufactures, software developers and system integration providers and achieved stable and improved network performance.展开更多
The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is respons...The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is responsible for managing the users attached to the access network in terms of user authentication, allocation of the IP address, and location management. In NGN R1, Telecommunications and Internet Converged Services and Protocols for Advanced Networking (TISPAN) studied the internal architecture and external interface protocols of NASS and published the relevant technical specifications. In NGN R2, TISPAN focuses on the study of mobility and nomadism as well as the ability to support various access network architectures. There still remain several issues that need further study.展开更多
文摘The Next Generation Network (NGN) (Softswitch) is a universal multi-service network designed for the transmission of voice, video and data on a packet switching basis. It is based on the IP bearer network. This article analyzes the features of different bearer modes in the respects of QoS, security and resource utilization. In order to bear NGN, QoS requirements should not be ignored. For this reason, QoS requirements are described from the view of delay, jitter, packet loss rate and bandwidth. At the end of this article, ZTE' s networking solution is given.
文摘The article introduces China Unicom's valuable experience obtained in the construction and operation of its IP-based data and fixed services network. In the construction of the network,China Unicom aimed at the quick deployment of telecom-level integrated services by building up multi-level metropolitan area networks and access networks;in the operation of the network,China Unicorn made great efforts with equipment manufactures, software developers and system integration providers and achieved stable and improved network performance.
文摘The Network Attachment Subsystem (NASS) is introduced to the Next Generation Network (NGN) architecture to enable services independent from access networks and support nomadism for fixed terminals. The NASS is responsible for managing the users attached to the access network in terms of user authentication, allocation of the IP address, and location management. In NGN R1, Telecommunications and Internet Converged Services and Protocols for Advanced Networking (TISPAN) studied the internal architecture and external interface protocols of NASS and published the relevant technical specifications. In NGN R2, TISPAN focuses on the study of mobility and nomadism as well as the ability to support various access network architectures. There still remain several issues that need further study.
