ZTE

ZTE Communications ›› 2009, Vol. 7 ›› Issue (2): 42-46.

• Research Paper • Previous Articles     Next Articles

IPv4 and IPv6 Migration in IMS Environment

Li Mo   

  1. Global Marketing and Research Center , ZTE USA , 2425 North Central Expressway, Suite 323 , Richardson , TX 75080 , US
  • Online:2009-06-25 Published:2020-03-03
  • About author:Li Mo holds a PhD degree from Department of Electrical Engineering of Queen’s University. He is CTO of ZTE USA (a wholly owned subsidiary of ZTE Corporation) and is a member of the Global Marketing Team for ZTE. Dr. Mo has over 20 years of experience in the telecommunication industry, including extensive work in Fujitsu, Nortel and IBM, prior to his joining ZTE in 2001. His current research interests include P2P network, IMS, and Fixed Mobile Convergence (FMC). Dr. Mo is an active member of IEEE, ETSI, and ITU, where he is an editor for five recommendations, and is an associate rapporteur of Q1/SG13.

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Abstract: The IP Multimedia Subsystem (IMS ) framework was envisioned to be operating on an IPv6 network. However, when the fixed network started to use IMS framework in the Next Generation Network (NGN ) architecture, the issue of IPv4 and IPv6 interworking becomes more pronounced due to the widespread usage of the IPv4 network. The overall objective of the solution proposed in this article is to minimize the invocation of Network Address and Port Translation Protocol Translation (NAPT-PT ) or Network Address and Port Translation (NAPT ) inside the provider’s network. The solution, outlined by the processing rules contained in this article, will limit the NAPT-PT operation at most once inside the provider’s network under all the situations for the media path. This solution will also introduce the minimum required NAPT operations.