 introduction of NGOSS for both legacy and new technologies. How to integrate the management of various radio and transmissions technologies into a homogenous platform. We have also discussed 3GPP and WiMAX management systems which are fundamentally based on TM Forum and ITU-T standards but with necessary customization. References 1. Willie, W.L. (2002) Broadband Wireless Mobile, John Wiley & Sons, New York. 2. Asif, S.Z. (2007) Wireless Communications Evolution to 3G and Beyond, Artech House, Norwood, MA. 3. Garg, V.K. (2002) Wireless Network Evolution, Prentice Hall, Upper Saddle River, NJ. 4. Lawrence, H., Levine, R., and Kikta, R. (2002) 3G Wireless Demystified, McGraw-Hill, New York. 5. 3GPP TS 23.016 (V3.10.0) (2004) Subscriber data management; Stage 2. Technical Specification (Release 1999), Technical Specification Group Core Network, 3GPP, March. 6. 3GPP TR 23.060 (V3.16.0) (2003) General Packet Radio Service (GPRS); Service description; Stage 2. Technical Specification (Release1999), Technical Specification Group Services and Systems Aspects, 3GPP, December. Next Generation Mobile Communications Ecosystem 7. 3GPP TS 22.228 (V5.6.0) (2002) Core Network Subsystem (Stage 1). Technical Specification (Release 5), Technical Specification Group Services and Systems Aspects, 3GPP, June. 8. 3GPP TS 23.228 (V5.13.0) (2004) IP Multimedia Subsystem (IMS); Stage 2. Technical Specification (Release 5), Technical Specification Group Services and Systems Aspects, 3GPP, December. 9. Overview of 3GPP Release 6 Summary of all Release 6 Features. Version TSG #33, ETSI Mobile Competence Center, September 2006. 10. 3GPP TR 23.919 (V8.0.0) (2008) Direct tunnel deployment guideline. Technical Report (Release 8), Technical Specification Group Services and System Aspects, 3GPP, December. 11. 3GPP TR 23.873 (V4.0.0) (2001) Feasibility Study for Transport and Control Separation in the PS CN Domain. Technical Report (Release 4), Technical Specification Group Services and System Aspects, 3GPP, March. 12. 3GPP TR 23.882 (V8.0.0) (2008