LTE下行链路关键技术的研究与实现，硕士论文-LTE downlink and implementation of key technologies

Downlink Spec. – Downlink Structure: FDD, TDD – Initial Access • Cell Search (PSC, SSC, RS) • System Information Receive (PBCH, PCFICH, PDCCH) • Random Access – Downlink data transmission: PHICH, PDSCH R

MU Diversity in Downlink Channels-when feedback cost overweigh spectral efficiency

these peak-reducing signals are built by using spreading codes that are either dynamically selected those users that are known to be idle, or deliberately reserved a priorifor PAPR reduction purposes. The concept of adding orthogonal signals for peak