Читать книгу Mobile Communications Systems Development - Rajib Taid - Страница 14

Mobile communications systems and networks based on the GSM/GPRS, UMTS, LTE, and 5G systems and technologies consist of telecommunications infrastructures to provide communications services to mobile users. In this first part of the book, several knowledge areas of legacy mobile communications systems and networks which are based on the GSM/GPRS, UMTS, and LTE technologies as well as 5G systems are covered. The 5G system shall be covered exclusively in Part IV of this book. Because even if a reader is starting a career in LTE, 5G, or the latest, system and network, and as a developer or O&M person, one must know the major key concepts from the legacy GSM/UMTS/LTE networks as well. The network architectures and their protocols; the 3GPP standardization processes; systems engineering; functions such as the network identities, packet encapsulations, and interworking of network aspects of the GSM/GPRS, UMTS, LTE, and 5G system are discussed. This part of the book contains eight chapters, and their purposes are as follows.

Chapter 2 describes the architectures and their domains of the GSM, GPRS, UMTS, and LTE networks. The standardization processes used by the 3GPP and evolutions of mobile communications networks based on the GSM, GPRS, UMTS, LTE, and 5G systems are also described. The System Engineering aspects of mobile communications networks are described briefly.

Chapter 3 describes the architecture and different types of protocols found within the mobile communications systems and networks, which are based on the legacy GSM, GPRS, UMTS, LTE system as well as the 5G system. Various interfaces for peer‐to‐peer protocol layers communications are also described.

Chapters 4 to 9 describes some of the essential functions that are performed by the mobile communications systems and networks, which are based on the legacy GSM, GPRS, UMTS, LTE, and the emerging 5G system to provide seamless communications services to mobile users within a particular network or across the networks.