About the Authors

Rainer Liebhart has over 20 years of experience in the telecommunication industry. He held several positions within the former Siemens Fixed and Mobile Networks divisions and now in Nokia Networks division. He started his career as SW Engineer, worked later as standardization expert in 3rd Generation Partnership Project (3GPP) and European Telecommunications Standards Institute (ETSI) in the area of Internet Protocol Multimedia Subsystem (IMS), took over responsibilities as Worldwide Interoperability for Microwave Access (WiMAX) and Mobile Packet Core System Architect and is currently heading the Mobile Broadband Core Network standardization team in Nokia Networks. He is the Nokia Networks main delegate in 3GPP SA2 with the focus on Long-Term Evolution/System Architecture Evolution (LTE/SAE). He is (co-)author of over 50 patents in the telecommunication area. Rainer Liebhart holds an MS in Mathematics from the Ludwig-Maximilians University in Munich, Germany.

Devaki Chandramouli has over 14 years of experience in the telecommunication industry. She spent the early part of her career with Nortel Networks and is currently with Nokia, Networks division. At Nortel, her focus was on design and development of embedded software solutions for Code Division Multiple Access (CDMA) networks. Later, she represented Nortel in the WiMAX Forum and worked on WiMAX architecture and protocol development. At Nokia, her focus areas include architecture development within 5G research ...

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