Curt Wong’s research while affiliated with Nokia and other places

The aim of the book is to educate government agencies, operators, vendors and other regulatory institutions how LTE can be deployed to serve public safety market and offer regulatory / public safety features. It is written in such a way that it can be understood by both technical and non-technical personnel with just introductory knowledge in wireless communication. Some sections and chapters about public safety services offered by LTE network are intended to be understood by anyone with no knowledge in wireless communication.

This chapter provides an overview of Long-Term Evolution (LTE) including insights into the role of 3rd Generation Partnership Program (3GPP) in developing new technologies and technology/business drivers for LTE. It presents a high-level overview of nonroaming and roaming architectures with explanation of concepts such as session and mobility management, network sharing, and multicast broadcast multimedia services. It also provides a high-level overview of Policy and Charging Control/IP Multimedia Subsystem (PCC/IMS) architectures and mechanisms to support voice and Short Message Service (SMS) in LTE.

This chapter describes the special characteristics of Public Safety networks and explains why LTE was selected as technology enabler for future Public Safety networks. Deployment considerations and a discussion of interworking aspects complete this section.

This chapter provides a detailed description of proximity services as specified in 3GPP. “Proximity Services” (ProSe) refers to services that can be provided to devices when they are in close proximity to each other. The chapter provides also an overview of discovery models, modes, procedures, and direct communication procedures that are specified in 3GPP Release 12. It also provides insights into how Proximity Services can be supported in the LTE network and LTE device.

This chapter provides details of group communication services as specified in 3GPP Release 12. This includes the architectural framework adopted for unicast and broadcast delivery of voice and data in order to effectively support group communication. It also highlights different use cases and how group communication solutions apply for these use cases.

This chapter provides a summary of what was explained in previous parts of this book. It is meant as a wrap-up of the LTE and LTE for Public Safety principles, how LTE impacts people's daily lives and how public safety features and services can help to enhance people's safety and security. It is mainly intended to provide a summary of the concepts addressed in the book and to provide an outlook on the future of public safety networks.

This chapter provides an overview of regulatory features and priority services that should be supported by Long-Term Evolution (LTE) networks including public safety networks. Most important features are emergency calls to a public safety answering point (fire, police, and ambulance), multimedia priority services to allow certain people making priority calls even in network congestion situations and public warning systems for broadcasting warning messages in special areas about impending emergency situations. Last but not the least, the possibility to intercept any communication between is a requirement mobile network operators have to fulfill in each country worldwide.

This chapter provides detailed call flows for the most important procedures in LTE/SAE and an overview of used reference points.