Relationship between IPv6 and NGN and 3G networks (1)

IPv6 standards are more conducive to carrying out a variety of services than IPv4 in terms of address space, security, and mobility. Therefore, IPv6 has the advantage of carrying out services from a certain perspective. From the perspective of business development, due to the limitations of IPv4, there is a certain problem in carrying out IPv4-based end-to-end services. Taking the development of P2P as an example, we can clearly compare the advantages of IPv6 compared with IPv4, IPv6 replacement of IPv4 has become an inevitable trend, while NGN and 3G are the specific implementation of IPv6 services. The development of NGN and 3G is largely influenced by the development of IPv6, and the development of IPv6 is also promoted with the improvement of NGN and 3G. The two promote and interact with each other. Specifically, NGN and 3G are the driving force for IPv6 business development, while IPv6 is the foundation for the further development of NGN and 3G.
1. Relationship between IPv6 and NGN and 3G
From the perspective of development philosophy, the development of IPv6 helps NGN and 3G businesses develop from a single point network to a "surface" network. In the case of an IPv4 network, an IPv4 network must be optimized when multiple conditions are limited (address problems, bandwidth problems, and device problems, this kind of optimization work must be carried out at one point and one point. When using IPv6 to carry out NGN services, on the one hand, the IP address space is large enough to provide mobile IP addresses that are easy to deploy, which has a strong advantage in interconnection, on the other hand, IPv6 has taken into account the requirements for carrying comprehensive services and ensures the quality of service and security of the network. Therefore, IPv6 networks have the capability to carry NGN services from the very beginning, that is, launching NGN services on IPv6 networks is a problem of a wide range of networks. Specifically, the construction of CNGI, in the test network established using IPv6 standards, through the implementation of NGN services to support VoIP, video conferencing, etc., not only can test the technology at the same time, explore new ways of network operation, that is, how to carry out business on a "surface" network, how to cross different administrative divisions, and how to coordinate management scope.
3G is a milestone in moving mobile networks from narrowband networks to broadband networks. The establishment of 3G networks will have a huge impact on wireless communication and will also promote the development of wireless network services, especially the development of multimedia services. In the R5 phase of the 3G standard, the network is IP-oriented, especially when the IPv6-based IMS subsystem is added in the PS domain, enhancing network support for multimedia services, for example, you can use MMS with a length of more than Kbyte and continuous image clips. You can also use IM communication based on the IP system more quickly, these services will undoubtedly increase the user's interest in using data services, and will also increase the number and duration of user using data services. From the mechanism analysis, IPv6 provides a huge address space to ensure the smooth development of new multimedia services, IPv6 Mobile IP technology also enables users to roam between networks in other systems such as wireless networks and WLAN. Due to the importance of IPv6 in the 3G system, the 3GPP standard organization and IFTF jointly set up the IPv6 3G application research team to jointly solve the problem of IPv6 application in 3G. With the in-depth research on the business and the development of the business in the 3GPP R5 stage, in order to meet user requirements, the device developer usually provides a hybrid system, for example, Standard upgrade is performed on the business part of the system first, while downward compatibility is maintained on the infrastructure. That is to say, the infrastructure will support the R99 standard, while the business part supports the R4 standard R99 + R4 hybrid system. When the R4 standard must be used in China, the R4 + R5 system is an important stage for the evolution of wireless networks in the future, in this way, the wireless network can provide users with multimedia services based on R5 IMS subsystem under the R4 infrastructure. With the emergence of systems that fully support the R5 standard, the core network is based on the NGN platform. The use of IPv6-based wireless networks on the Iu interface will become the mainstream of wireless network development, IPv6 standards and applications will also be greatly developed.
2 Application of IPv6 in NGN
NGN has become one of the mainstream technologies for voice and video communication. The R5 phase of the 3G standard will also be a service platform with NGN as the core network. IPv6 will play a role in promoting the development of NGN, taking the concept of Digital Olympics as an example, it generally includes news centers, venues and families.
News Center application: the press center's bearer platform is IPv6 (fixed and mobile), the business platform is the NGN system, and the PUSH Service receives the latest Competition News from the venue, electronic newspapers are also distributed to subscribers of Olympic electronic newspapers. In news publishing, we can not only publish news through the current press conference, but also conduct news publishing on the Internet through the virtual press conference, you can also provide remote interviews via videophone or video conferencing.
Venue application: the mainstream application of the venue is the monitoring of the venue and cluster communication. Through the IPv6-based broadband wireless network (WLAN, 3G), the venue is monitored for work contacts in the venue, it will be much more convenient and secure. There are first-hand news materials and people and things directly related to the competition. In order to enhance the interaction between the venue and users, many content can be carried out, such as interactions between athletes and sports enthusiasts, in the interaction between the audience and the audience outside the venue, Super Users can also control certain camera equipment in the venue to watch specific game content, such as focusing only on the scenes of Yao Ming in the competition.
Home applications: home applications are the most difficult topic for IPv6. In addition to common network services, the electronic newspapers and on-site interactions described above can attract many audiences, however, IP-based IPTV is the most important application for home applications. Due to the limited IPv4 address, IPTV is usually difficult to launch in a large area. In the case of IPv6, IPTV can be directly broadcast to the network by means of multicast, and sent to the TV set of each user by IP address.