Not all of these indicator is measured for every CSI report. Depending on the situation and configuration from network, UE perform different combination of measurement. CQI (Channel Quality Indicator) PMI (Precoding Matrix Index ) RI (Rank Indicator)
Read moreWhat is CQI PMI RI in LTE?
CQI is Channel Quality Indicator. PMI stands for Pre-coding Matrix Indicator, and RI is Rank Indicator . These three values are computed on the fly in LTE systems and used to try to optimize resource allocation among the various user end devices (UEs) that are requesting service.
Read moreWhat is CQI Reporting in LTE?
CQI stands for Channel Quality Indicator . As the name implies, it is an indicator carrying the information on how good/bad the communication channel quality is. This CQI is for HSDPA. (LTE also has CQI for its own purpose).
Read moreWhat is PMI in LTE?
LTE PMI stands for Precoding Matrix Indicators . They are applicable to closed loop transmission modes: • Transmission Mode-4:Closed Loop Spatial Multiplexing.
Read moreDoes LTE support 256 QAM?
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 moreWhich 3GPP release supports 256 QAM in the downlink?
From Rel 12 , 3GPP defines (support) 256 QAM in Downlink.
Read moreWhat QAM 256?
Just what is QAM-256? It refers to Quadrature Amplitude Modulation , which is the means by which a carrier signal, such as an LTE waveform, transmits data and information. Ideally, a waveform/symbol carries as much data as possible in order to achieve higher data rates and increase spectral efficiency.
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