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
The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper exp...The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper expounds several core concepts related to research.In the end,the article summarizes the vast majority of navigation idioms from the perspective of language and cultural relations with the relevant published literature,as well as cnki.net and English journals,and rarely studies navigation idi⁃oms systematically from the perspective of semiotics.Therefore,it is necessary to carry out this study and find out the cultural simi⁃larities and differences from another perspective.展开更多
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.
文摘The present situation of study of Chinese and English navigation idioms is examined from the perspective of semiotics.Firstly,the author expounds the background of the study on navigation idioms.Secondly,the paper expounds several core concepts related to research.In the end,the article summarizes the vast majority of navigation idioms from the perspective of language and cultural relations with the relevant published literature,as well as cnki.net and English journals,and rarely studies navigation idi⁃oms systematically from the perspective of semiotics.Therefore,it is necessary to carry out this study and find out the cultural simi⁃larities and differences from another perspective.
