RSRP is used for RRC_IDLE intra-frequency, RRC_IDLE inter-frequency, RRC_CONNECTED intra-frequency and RRC_CONNECTED inter-frequency. ![]() If UE uses receiver diversity, the value reported should not be less than the corresponding RSRP of any of the individual diversity branches. The measurements used for both the denominator and numerator are made over the same set of resource blocks. RSRP's reference point is the antenna connector of UE.Īn alternative definition would be that RSRQ is the ratio N × RSRP / (E-UTRA carrier RSSI), where N is the number of resource blocks of the E-UTRA carrier RSSI measurement's bandwidth. R1 may be used in addition to R0 to determine RSRP if UE is able to detect reliably that R1 is available. To determine RSRP, the cell-specific reference signals R0 is used according to TS 36.211. RSRP is defined as the linear average over the power contributions (measured in Watts) of the resource elements that carry cell-specific reference signals within the frequency bandwidth that is considered for measurement. To detect RSRP or RSRQ, a minimum of -20 dB SINR (of the S-Synch channel) is required. RSRP is the LTE Reference Signals' power spread over the full narrowband and bandwidth. RSRP - Reference Signal Received Power.It looks at signal as related to noise. See chart above for value range from excellent to worst. SINR. In dB - The Signal to Noise Ratio is derived from the desired signal divided by undesired noise.The reason is that even if there's signal power, the noise can negate the benefits and render it useless. This is the most important factor when trying to determine if devices will work or not. RSRQ. In dB, LTE - The Reference Signal Received Quality has a range from -40dB (bad) to -3dB (good) - see chart above for actual assessment.See chart above for value range from excellent to worst. RSSI. In dBm - The Receive Strength Signal Indicator measures the average total received power of the whole band.RSRP. In dBm, LTE - The Reference Signal Received Power has a range of -45dbm (good) to -140dbm (bad) - see chart above for actual assessment.However, in this article, we will dig into the following four main parameters and explain what they mean and how they are used. RS SINR or RSSNR = Signal to Noise Ratio.SNIR = Signal to Noise plus Interference Ratio.SINR = Signal to Interference plus Noise Ratio.RSRQ = Reference Signal Received Quality.RSRP = Reference Signal Received Power.RSSI = Received Signal Strength Indicator.There're many acronyms related to measuring wireless signal strength including the following: ![]() To do this, it has to measure the signal strength and quality of the neighboring cells. In cellular networks for example, a mobile phone (UE) moving from cell to cell has to perform cell selection and handover. Although some of these parameters may at first glance appear to be very similar, they each serve a different purpose and are used in different scenarios. These measurements and calculations are done by special chipsets present in any User Equipment (UE) that uses these signals. When determining signal level and quality in modern radio communication networks, there are a number of parameters that are measured and/or calculated. What do the terms RSRP, RSSI, RSRQ, SINR mean when talking about cell phone signal strength or quality of calls and consistency or speed of data connectivity? Let us understand the meaning and concepts intrinsic to those terms. This post elaborates on that terminology for greater understanding. ![]() ![]() In our field test mode post, we refer to few acronyms such as RSRP, RSSI, RSRQ, SINR but did not go into much details to prevent going off-topic.
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