Howtosignalprocessing
How is SINR measured in LTE?
2.OVERVIEW OF LTE MEASUREMENTS
Signal to Interference plus Noise Ratio (SINR) is measured by UE on Resource Block (RB) basis. UE computes SINR on each RB, converts it to CQI and reports it to eNodeB where it is used to select the most suitable MCS for user data transmission in particular RB.
Can SINR be negative?
The ratio can be zero, a positive number or a negative number. A signal-to-noise ratio over 0 dB indicates that the signal level is greater than the noise level. The higher the ratio, the better the signal quality.
What is a good SINR?
Generally, a signal with an SNR value of 20 dB or more is recommended for data networks where as an SNR value of 25 dB or more is recommended for networks that use voice applications.
What causes low SINR?
Low SINR is caused by long distance between transmitter and receiver, the communication channel being in fade, or interference from adjacent wireless transmissions over the same frequency spectrum. Furthermore, there is a growing interest in low SINR operation for improving the throughput in wireless networks [3].
