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LTE, LTE-Advanced and WiMAX: Towards IMT-Advanced Networks by Najah Abu Ali, Hossam S. Hassanein, Abd-Elhamid M. Taha

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9

Overview of LTE and LTE-Advanced Networks

3GPP's Long Term Evolution (LTE) is a mobile broadband access technology founded as a response to the need for the improvement of to support the increasing demand for high data rates. The standard for LTE is a milestone in the development of 3GPP technologies. It came as an answer to the competition in performance and cost of IEEE 802.16-2009 to maintain the 3GPP systems share of the cellular communications market.

The chapter is organized as follows. Section 9.1 provides an overview of LTE and its successor, LTE-Advanced. It describes the protocol architecture, the connection interfaces, the support for femtocells and the air interface. Section 9.2 provides an overview of Part II of the book, going over frame structure, user equipment states and state transitions, quality of service management, mobility management and, finally, security.

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