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4G: LTE/LTE-Advanced for Mobile Broadband by Johan Skold, Stefan Parkvall, Erik Dahlman

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Chapter 10

Downlink Physical-Layer Processing

In Chapter 8, the LTE radio-interface architecture was discussed with an overview of the functions and characteristics of the different protocol layers. Chapter 9 then gave an overview of the basic time–frequency structure of LTE transmissions, including the structure of the OFDM time–frequency grid being the fundamental physical resource on both uplink and downlink.

This chapter will provide a more detailed description of the downlink physical-layer functionality, including the transport-channel processing (Section 10.1), downlink reference signals (Section 10.2), details on downlink multi-antenna transmission (Section 10.3), and downlink L1/L2 control signaling (Section 10.4). Chapter 11 will provide ...

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