LTE SC-FDMA and LTE Uplink LTE (Long-Term Evolution) utilizes a specific modulation scheme for the uplink known as Single-Carrier Frequency Division Multiple Access (SC-FDMA). SC-FDMA is a modulation and access scheme that provides advantages for uplink transmission in LTE networks. Introduction to SC-FDMA and uplink frame structure Marriage of single carrier transmission and FDMA Uplink … Read more
There are two kinds of uplink dedicated physical channels, the Dedicated Physical Data Channel (DPDCH) and the Dedicated Physical Control Channel (DPCCH). The DPDCH is used to carry the DCH transport channel. The DPCCH is used to carry the physical sub-layer control bits. Each DPCCH time slot consists of Pilot, TFCI，FBI，TPC Pilot is used to … Read more
The TX diversity methods in the open-loop mode are as below Space time-block coding-based transmit-antenna diversity (STTD) Time-switched transmit diversity (TSTD). In UMTS STTD the data to be transmitted is divided between two UMTS transmission antennas at the base station site and transmitted simultaneously. The UMTS channel-coded data is processed in blocks of four bits. … Read more