CQI (Channel Quality Indication) – Instead of expressing the CQI as a received signal quality, the CQI expressed as a data rate that terminal (UE) can support under the actual radio conditions. SINR is used for calculating CQI. In LTE, CQI has only 15 codes. MCS parameter is assigned based on the CQI value .
Read moreWhat is modulation in mobile networks?
Modulation is a process of mixing signals with a sinusoid to produce a new form of signals . The newly produced signal has certain benefits over an un-modulated signal. Mixing of low-frequency signal with a high-frequency carrier signal is called Modulation.
Read moreWhat is LTE OFDM?
Orthogonal frequency-division multiplexing (OFDM), is a frequency-division multiplexing (FDM) scheme used as a digital multi-carrier modulation method . OFDM meets the LTE requirement for spectrum flexibility and enables cost-efficient solutions for very wide carriers with high peak rates.
Read moreIs LTE digital or analog?
This is the most exciting time in the mobile industry since the switchover from analog to digital back in the early 1990s. LTE represents a paradigm shift from hybrid voice and data networks to data-only networks.
Read moreWhat is OFDM and SC-FDMA in LTE?
LTE is based on Orthogonal Frequency Division Multiplexing (OFDM) with cyclic prefix (CP) in the downlink, and on Single-Carrier Frequency Division Multiple Access (SC-FDMA) with cyclic prefix in the uplink. It supports both FDD and TDD duplex modes for transmission on paired and unpaired spectrum.
Read moreWhat is the maximum modulation scheme in LTE?
One of the LTE features introduced in Rel-12 is the support for higher order modulation , that is 256QAM for DL data transmission to enhance the spectral efficiency and the system throughput.
Read moreWhat modulation is used in 5G?
Orthogonal Frequency Division Multiplexing (OFDM) is an efficient modulation format used in modern wireless communication systems including 5G.
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