ted, even many CDMA2000/EV-DO operators have disassociated their selves with UMB (Ultra Mobile Broadband) and have joined the 3G-LTE bandwagon. The key questions that are still in the gray area are: When to introduce EPS: How long the HSPA/HSPA- path needed to be continued. Should HSPA- be considered as an intermediary step. Would LTE only be implemented to offload UMTS/HSPA traffic. Should 2G-GSM operators directly migrate to LTE and skip the UMTS/HSPA path. 25 MDM9200 (mobile data modem) supports UMTS, HSPA+ and LTE while MDM960?0 supports CDMA2000 1X, EV-DO Rev. B, Simultaneous Voice-Data Operation, UMTS, HSPA- and LTE. Next Generation Mobile Communications Ecosystem How efficiently and quickly can interoperability issues between HSPA/EPS and between EPS and non 3GPP networks (EV-DO and WiMAX) be addressed. When cost effective LTE devices will be available SO it can become a true mass market solution. How to provide innovative, cost effective backhual solutions? References 1. Asif, S.Z. (2007) Wireless Communications Evolution to 3G and Beyond, Artech House, Inc., Norwood, MA. 2. ETSI Mobile Competence Centre (2004) Overview of 3GPP Release 99 Summary of all Release 99 Features. 3. ETSI Mobile Competence Centre (2004) Overview of 3GPP Release 4 Summary of all Release 4 Features, V.1.1.0 (draft). 4. ETSI Mobile Competence Centre (2003) Overview of 3GPP Release 5 Summary of all Release 5 Feature. 5. ETSI Mobile Competence Centre (2006) Overview of 3GPP Release 6 Summary of all Release 6 Features, Version TSG #33. 6. ETSI Mobile Competence Centre (2009) Overview of 3GPP Release 7. V0.9.6, June. 7. ETSI Mobile Competence Centre (2009) Overview of 3GPP Release 8. V0.0.7, June. 8. ETSI Mobile Competence Centre (2009) Overview of 3GPP Release 9. V0.0.6, June. 9. 3GPP TR 25.913 (V8.0.0) (2008) Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E- UTRAN). Technical Report (Release 8), Technical Specification Group Radio Access Network, 3GPP, December. 10. 3GPP TS 36.201 (V1.2.0) (2009) Evolved Universal Terrestr