CM-IMS Network Technology Research

CM-IMS, put forward by CMCC, is an innovative next-generation network architecture based on international standards of IMS, it is also an important solutions of network and business amalgamation。CM-IMS is a involves access, bearing network, core network, network, and terminal and supporting system of end-to-end system.This paper introduces the whole business of China mobile network solutions CM-IMS network the overall structure of and business, and the implementation scheme of China mobile CM-IMS standard based on mobile complete province G pilot. The dissertation is divided into five chapters, the first chapter, the second chapter for the introduction of IMS background and technology are summarized, the third and fourth chapter of China mobile CM-show an IMS network, introduces in detail based on the 3 GPP normative CM-IMS network and business, the fifth chapter to G province CM-IMS pilot situation are introduced, detail the networking and business platform construction. The author is planning department is network planning and project department, according to company arrangement, the author served as the system network planning and design of project director, completed CM-IMS pilot project network planning and construction project management.This paper also points out, CM-IMS in construction and development, the network structure and the initial business changes continually, and finally form a mature network and business. Because speech business is still operator individual business the main source of revenue, therefore, CM-IMS and CS network will be a long-term coexistence relationship. Toward unification fuses the core network process, partial CS equipment to begin support ICS, CS domain of soft switch upgrade support ICS, CS domain into a CM-IMS access networks, PS domain evolution to SAE architecture, PS domain for CM, and finally provides access-IMS PS network and CM-IMS network together...