We look at this example and others in more detail in this paper. 2uplink SINR: If the. It's useful for digital synthesis of sine waves. LTE Vienna Simulator System-Level simulation Inter-cell RRM Multi-cell RRM Deployments Macrocell as a Primary Network Femtocell as a Secondary Network Block type: 5x5 grid, House dimensions: 10x10 What system-level sim. The post-equalization SINR on layer l equals SINR k,n,l = |K k,n(l,l)|2 P i6= l|K k,n(l,i)|2 +σ n2 i F k,n(l,i), (5) where K k,n(l,i) refers to the element in the lth row and ith column of matrix K. 2008-07-03 IEEE 802. In a typical environment, reﬂective surfaces vary from mo-ment to moment (i. It is not reported to the network. No plot is displayed and any graphical only name-value pairs are ignored. h: antenna-model. For example, if a client device's radio receives a signal at -75 dBm, and the noise floor is -90 dBm, then the effective SNR is 15 dB. Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. specialized problems. EpsE is an inhibitor of motility. from RHR strike), and is entered directly if RHR rake is <90 [examples lines 4 and 5 below], or is calculated (180-column C)[examples lines 1-3 below]. === Hmmm "implmenting the OFDM receiver, demodulate the signal" sounds easy, but as to "Subtract it from the received signal", hmmm, I can't see where is the received signal. doc: introspected-doxygen. Minimum deviation. UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. 65 degrees Ok how do I actually enter that into a calculator? What are the actual physical steps (which buttons do I press) on the calculator to get that answer? This is what I was told I have a TI-83 Plus. For option 1, shown in Fig. Description. The terms in the sum on the right hand side are 0 unless either i = j = k = l, which happens n times, or when there are two pairs of matching indicies, which happens ( n 2) ( 4 2) = 3 n ( n − 1) times. 1dB for DL 3. Thus, the data rates of a wireless link in both directions are asymmetric to each other depending on the surrounding channel condition. In alternative, you can take many samples of the noise and then calculate its RMS. It is not reported to the network. SINR) and defines how many bits can be carried by a single Resource Element (RE). Do not delete the top test line (it has the equations). The Logo function SIN X returns the sine of an angle measured in degrees while the typical sine curve is for angles measured in radians. 14 / 180) = 1. The calculation of the normal direction is harder under these circumstances, but the behaviour is still predicted by Snell's Law. On the other hand, given a sum power constraint P max,the same SINR region is achievable for both the downlink and its virtual uplink. However, if the strongest cell is not in the AS and if it is 3 dB stronger than the 2nd strongest cell serving the UE then only 4 interferer cells with equal signal strength to the strongest cell lead to RLFs. Once the capacity calculation is done, it is advisable obtaining the final SINR coverage area. LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. This would represent the solid line in the example you showed above. The AWGN BLER curves are obtained form link level simulations. Following plot is from the data captured by a drive test tool Azenqos Drive Test tool (AZQ Android). 5dB(bad) to -3dB (good). The Required SINR is the main performance indicator for LTE and the accurate knowledge required SINR is central to the authenticity of the throughput and thus the process of dimensioning. Here is the table with the values of trigonometric ratios for standard angles. Here, a precoder is multiplied to a signal before transmission and a weight vector is multiplied to the received signal after reception. 78 dBm ; RSRQ (dBm) = -10. The Signal to Interference-plus-Noise Ratio (SINR) criterion for data reception (eq. The formulas used in within the calculator is below, where: RSRP is the Reference Signal Received Power and is measured in a single RE of the LTE REsource Block. LTE Vienna Simulator System-Level simulation Inter-cell RRM Multi-cell RRM Deployments Macrocell as a Primary Network Femtocell as a Secondary Network Block type: 5x5 grid, House dimensions: 10x10 What system-level sim. [Verify that the point is on the curve. operate over a wide range (low-, mid-, and high-) of SINR regimes over time due to the multiple levels of the power mask. Signal strength computation using free space propagation or other propagation models. Here is an example 1sin32 = 2. RSRQ – Indicates quality of the received signal, and its range is typically -19. This example shows how to construct a 5G urban macro-cell test environment and visualize the signal-to-interference-plus-noise ratio (SINR) on a map. 2 (a): Show that if we have an orthogonal parametrization of a surface (that is, F = 0), then the gaussian curvature K is given by K = − 1 2 (EG)−1/2 h (E v(EG)−1/2. Details on Power, Interference & SINR •MRT delivers more power, but ZF suppresses interference, providing much higher SINR 20 Mean Over Route MRT ZF Received Power (dBm)-49. Uncertainty calculations for index of refraction calculations. Confirm the terminal type and quantity. In two or three spatial dimensions, the same equation describes a travelling plane wave if position x and wavenumber k are interpreted as vectors, and their product as a dot product. 2 SINR of subspace blind CM detector versus the number of symbols for synchronous CDMA system (SNR=18dB, 5 known user, 2 unknown user). Lets try to calculate RSRP, RSSI and RSRQ for one very. We show in the subsequent sections that the calculation of both the joint and marginal complementary CDFs (CCDFs) of the downlink SINR at an arbitrarily located user in the network are examples of a class of problems that are made tractable by pairing the. The proposed solution was. Summary of Styles and Designs. Good data redundancy as there is data parity. Handover simulation campaign; Frequency Reuse examples; Carrier aggregation examples; Radio link failure example; Troubleshooting and debugging tips; Testing Documentation. For example, ZC*1 will return the front month, ZC*2 returns the second month out, ZC*3 returns the third month out, etc. MI(SINR l) (5) The calculation of the postprocessing SINR l is done by a model according to [10], by which the post-processing SINR l on stream l is given by Eq. When c is odd, each codeword will be decoded unambiguously. The further a received signal is from the noise floor, the better the signal quality. Snell's law of refraction. Even at a time instance, different CRs may be operating in different SINR regimes. UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. Questions,. Value of RSRP, RSRQ, RSSI and SINR to get Good Data Rate RSRP, RSRQ , RSSI are the measurements that the UE takes for cell reselection or handover puroposes. Calculate the following integrals by changing to polar coordinates: (a) Z2 0 Zp 4 x2 0 p x2 +y2 dydx; (b) Z1 0 Zp x x2 p x x2 p x2 +y2 dydx: Solution (a) Z2 0 Zp 4 x2 0 p x2 +y2 dydx = Zˇ=2 0 Z2 0 r2 drd = 4ˇ 3. We consider the mass/force example in the lecture notes, and in exercise 10,. 168 Capacity of wireless channels enough N. residue interference are independent with AWGN. At what speed will this wave travel? 2. Note the MOE technique does not require a reference signal. The RSRP at my apartment is good (usually in the -90's) however, my SINR and RSRQ are consistently awful based on that chart. For example, when the first system with universal frequency reuse (N=1) was deployed, no one realized how bad the out-of-cell interference could be when the load became heavy. Do not delete the top test line (it has the equations). RSRQ(Reference Signal Recieved Quality) RSRQ is defined as (N x RSRP)/RSSI in 3GPP 36. 4 wireless network containing nodes that employ the NXP JN51xx wireless microcontrollers (e. New York Journal of Mathematics New York J. SINR is used a lot by operators, and the LTE industry in general, as it better quantifies the relationship between RF conditions and Throughput. It is not reported to the network. [Verify that the point is on the curve. The worst-case SINR analysis problem of ﬁnding a steering vector and a covariance that minimize the SINR for a given weight vector can be written as (9) with variables and. Concerning the presentation of the Methods, I hope that my responses to the previous referees clarifying the calculation of genomic affinity differences (i. Our route length calculation is based on the simplified SINR model: It aims at showing the influence of PU areas; It can also be easily extended to other routing protocols using real SINR models. example, according to Table I [9], if the received signal is – 80dBm, then the 9 and 6 Mbps rates are available and the 9 Mbps will be selected as the transmission rate. SINR Signal to interference and noise ratio SOTA State-of-the-art TTI Transmission time interval TX Transmitter UC Use case UDN Ultra-dense network UE User equipment UL Uplink UMa Urban macro UMi Urban micro uMTC Ultra-reliable MTC UP User plane V2X Vehicle-to-anything VoIP Voice over Internet Protocol WP5D Working Party 5D xMBB Extreme MBB. The scheme, on the other hand, does require knowledge of the spatial signature h0. For example, a signal might have a phase shift of 90 degrees, which means that the offset amount is one quarter (90/360 = 1/4) of the signal. Although the Radiation Pattern is a 3 dimensional quantity it is usually sufficient to describe it in two orthogonal planes (one horizontal and one vertical) as shown in the figures above. 14 / 180) = 1. MCS (Modulation and Coding Scheme) depends on channel quality (e. The further a received signal is from the noise floor, the better the signal quality. Miele French Door Refrigerators; Bottom Freezer Refrigerators; Integrated Columns – Refrigerator and Freezers. Speedtest shows 59ms ping, 15. Also covers measurement of Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ). The amount of digital cancellation is increased to sustain a 3-dB loss of SINR. Damped or amplified Bloch-Floquet waves (BFW) are an example of coherent periodic structure waves (PSW) where the difference of backward and forward average phase shifts is +/- pi/2. - representing business functions or processes taking place in an airport and serving needs of passengers. Example of THD Calculation Figure 3 below is the output waveform from the amplifier under test. Example result, increasing digital cancellation (Case A) 25. (A) Circles are top views of swarm agar Petri plates. The required amount of digital cancellation for sustaining the specified SINR loss. SINR/SNR – The signal-to-noise ratio of the given signal. [c2 = a2 +b2 2abcosC. S D R RHR-R T P T -raw 180- strike dip rake RHRrake trend plunge tanR cosD sinD sinR tan(180-R. 0003 Please help, best answer gets 10 points. This is a simple and straightforward formula for data rate calculation. I am trying to get cellular SINR(signal to interference noise ratio) for LTE module and then capacity using shannon capacity formula, Can anyone give me. The principle goal of this thesis is to implement a SINR estimation algorithm for a cognitive radio network (CRN) test-bed. See the quick-reference table below for all compatible SI prefixes. in a single-hop network using uniform transmission power, where n is the number of nodes and \(R =O(poly(n))\) is the ratio between the longest and shortest. The Table of Contents lists all the topics I have, mostly about electronics and signal processing. Free polar graph paper is available. Figure 1 shows example communications with OLSR. GSO vs GSO satellite networks) The ROP defines. 12RE/RB equals to fully loaded serving cell. Good data redundancy as there is data parity. The Sine Rule. This application note will review a few important specifications described in TS36. 1) requires that the signal of interest power arriving at a receiver, over the sum of the interference and the thermal noise powers must be above a threshold θ SINR which is defined with respect to the transmission parameters (modulation scheme) and the. See move and machine instruction. >,sinr 2q 3 s,sinr 3q 3 s,sinr 4q 3 s,sinr 5q 3 s,sinr 6q 3 s,sinr 7q 3 s,sinr 8q 3 s,…E t √3 2, For Example, please refer to Tutorial Note #25 in MATH202. My SINR is almost always in the negatives and my RSRQ is almost always between -28db and -32db. The components of the SINR calculation can be defined as:. Two different Cases? Or really just one? There are two different situations when you use this formula. RSRQ – Indicates quality of the received signal, and its range is typically -19. Assume that the noise power at both receivers is 10−5W. This Application Note describes how to calculate the effective and actual data rates of an IEEE 802. idea behind delay and sum is to scan environments us- ing the microphone array beampattern at every angle and calculate when the output power of the signal is at its maximum [13]. Thanks a lot. tive to the optimal SINR due to the SMI approximation of w MVDR do not exceed 3 dB if KZ2M. What are the sin, cos, and tan buttons on my calculator for? (And how do they work?) When might I ever actually want to calculate the sine or cosine something? Those, obviously, are all very important (and very reasonable) questions to ask. you must calculate the true angle (*)useing the grade in (A)grade out (B)and horizontal angle (C). Select a Web Site. Example A Calculate the critical angle for the crown glass-air boundary. 11s deﬁnes HWMP, which is a combination of. Ratio (SINR) values. Purpose: An example of a business use case diagram for airport check-in and security screening. The authors have considered the impact of SINR imposed by collocated CR users on channel quality. in a single-hop network using uniform transmission power, where n is the number of nodes and \(R =O(poly(n))\) is the ratio between the longest and shortest. Overview of downlink Cell Reference Signals. This is the real measurement showing the correlation between SINR and Throughput. • Example from previous slide’s phase noise plot: – N= -75. Thus, a specific WDM-VLC model is developed to analyze the effects of the width of OFs on the signal-interference-plus-noise ratio (SINR). coordination of networks under No. Example 1: What is the Nyquist capacity for a signal with a frequency bandwidth of 1kHz, using Binary Phase Shift Keying (BPSK) modulation? Answer : First, BPSK is the binary form of PSK, where each signaling symbol can take on one of two values (i. A market for this US-based LTE operator utilized the IMNOS (Integrated Mobile Network Optimization Software) modules - Audit and Ad-hoc Planner - to resolve PCI problems. Follow 16 views (last 30 days) Here's some part of the code i am running: %% Examples on delay-and-sum response for different arrays. The analysis of steering vector mismatch and some previous work are reviewed in Section II. SINR calculation in the Downlink. If a ray of light goes from the air into the lens at an angle of 55. The power conversion of dBm to watts is given by the formula: P (W) = 1W ⋅ 10 (P (dBm) / 10) / 1000 = 10 ((P (dBm) - 30) / 10) Example. idea behind delay and sum is to scan environments us- ing the microphone array beampattern at every angle and calculate when the output power of the signal is at its maximum [13]. GSO vs GSO satellite networks) The ROP defines. We have built out seven new career-specific templates to help match your needs. Nr pdsch Nr pdsch. See the quick-reference table below for all compatible SI prefixes. UE data was transmitted from one of two cooperating eNodeB, based on the wideband CQI reported by the UE. You are allowed to use calculators in this topic. We consider the mass/force example in the lecture notes, and in exercise 10,. For example: 10 2 * 10 3 = 10 5, or 100 * 1000 = 100,000. 8 meters, what is the frequency of the wave? 3. Sim-ilar to the conclusions in1, the SINR performance of a random PPP network results in worst per-formance. SINR DIAGRAMS 371-10-30. py: model: angles. a cell size of 1 km, example: Nearby users will completely swamp far away users Solution: Power Control 160,00052! 50 10004 1 2 dB P P!== " # $ % & = 7 CDMA – Issues. The proposed solution was. But the actual power level used for this calculation needs to be RSSI. For a ﬁxed modulation and coding scheme and with interference treated as noise, e. Convert 43dBm to watts: P (W) = 1W ⋅ 10 (43dBm/ 10) / 1000 = 19. AALBORG UNIVERSITY DEPARTMENT OF ELECTRONIC SYSTEMS RADIO ACCESS TECHNOLOGY SECTION Fredrik Bajersvej 7 DK-9220 Aalborg East Phone 96 35 80 80 Title: Advanced Power Control for UTRAN LTE Uplink. The worst-case SINR analysis problem of ﬁnding a steering vector and a covariance that minimize the SINR for a given weight vector can be written as (9) with variables and. Motivations of RAB If the desired signal component is present in the data vector x, but the estimate of the data covariance matrix is perfect and the steering vector of the desired signal aðy sÞ is known precisely, the SMI beamformer (8) is equivalent. 1 LTE module. Rather than relying on regulation by a dedicated RNA or protein, the translation speed of ribosomes decreases at certain serine codons, resulting in lower SinR levels, which as a consequence, contributes to derepression of SinR-controlled genes. The function plots the values in matrix Z as heights above a grid in the x-y plane defined by X and Y. 90 inches (124. How does this Maddrey score for alcoholic hepatitis calculator work? This is a health tool also known as the Maddrey’s discriminant function (DF) that predicts the outcome, mortality risk in one month, in patients suffering from alcohol-related hepatitis and also identifies cases in which steroid therapy is recommended. 5dB(bad) to -3dB (good) Example 3 >: RSRP/RSRQ/RSSI/SINR at driving/handover situation. However, the mechanism underlying such a process. Calculating n Given a transparent substance, we can always find its index of refraction by using a setup like the example above. org/wiki/Signal-to-interference-plus-noise_ratio. So to find SNR we first need to calculate noise Power. Example 1: What is the Nyquist capacity for a signal with a frequency bandwidth of 1kHz, using Binary Phase Shift Keying (BPSK) modulation? Answer : First, BPSK is the binary form of PSK, where each signaling symbol can take on one of two values (i. This would then reflect as a signal strength of 15 dB for this wireless connection. Nr pdsch Nr pdsch. Thus, a specific WDM-VLC model is developed to analyze the effects of the width of OFs on the signal-interference-plus-noise ratio (SINR). can be further complicated. For example, sinr (txs,'MaxRange',8000) sets the range from the site location at 8000 meters to include in the SINR map region. LTE RSRP and RSRQ CALCULATOR EXAMPLE: Input : BW = 10 MHz , RSSI = -79 dBm Outputs : RSRP (dBm) = -106. Disclosed are a method and an apparatus for channel quality estimation in consideration of interference control and coordinated communication in a cellular system. For a ﬁxed modulation and coding scheme and with interference treated as noise, e. The proposed SINR estimation. If you wish to get the typical graph of the sine function, for example, you must use SINR X. The default length is taken from the recorded time-domain size of the current dimension. Let's look at an example of how to use the inverse sine function to find the measure of an angle in a right triangle. The typical l distributions of SINR l are shown in Fig. The calculations check out. (triangle not drawn to scale) To find the measure in degrees of angle A using the sine inverse, recall that Use a scientific calculator *Make sure your calculator is in degree mode 30° = A Let's look at an application problem. SINR is one of the important parameters that can help in developing cognitive radio systems, because on the basis of its calculation the spectrum can be utilized efficiently. Value of RSRP, RSRQ, RSSI and SINR to get Good Data Rate RSRP, RSRQ , RSSI are the measurements that the UE takes for cell reselection or handover puroposes. for example. As per physics we know each Hz bandwidth has a noise power of -174dBm/Hz, so we can calculate it for 15KHz using following formula. The RSRP at my apartment is good (usually in the -90's) however, my SINR and RSRQ are consistently awful based on that chart. Snell's Law is ni sini = nr sinr and can be written as nr ni. The sine of an angle is defined as the ratio of the opposite leg to the hypotenuse. Maximum SINR Preﬁltering for Reduced–State Trellis–Based Equalization Uyen Ly Dang 1, Wolfgang H. SINR is the parameter that we consider. 4 wireless network containing nodes that employ the NXP JN51xx wireless microcontrollers (e. LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. We then setup the rogue AP and place it at three separate locations A,B, and C. Lets look at two cases Case 1 Assuming a 5MHz BW, SINR of 17. Check the calculations above that the Gaussian curvature of the upper half-plane and Poincar´e disk models of the hyperbolic plane is −1. A second ship leaves port A and sails directly to C. the number of bits per modulation symbol to be sent i. 72 dBc/Hz (from 10 kHz to 10 MHz offset) –Fclk= 122. 24 (2018) 1101{1110. In order to solve this question I created an application called Signal Strength Detector and with source code on GitHub. Required SINR depends upon the following factors: Modulation and Coding Schemes (MCS) Propagation Channel Mode. Here is a Matlab script for calculating ENBW from an “. After BPSK modulation and choosing a1 = 0. This results from the different Resource Block allocations and different coding rates. When c is even, and has an equal number of 0’s and 1’s, the decoder can’t really tell. SINR is de-ﬁned as the ratio between the signal power S1 of the desired transmission to the combined power of all interfering trans. 1dB for DL 3. EVAL] [1] for evaluating 5G radio technologies. is given in terms of the post-equalization SINR k,n,l as I k,n = XL l=1 log2 (1+SINR k,n,l) (4) in bits per channel use, with L denoting the number of spatial transmission layers. How is this different from Equal Gain Combining (EGC) scheme ?? The output SNR of EGC is the sum of the SNRs on all brances. Speedtest shows 59ms ping, 15. A Answers, Solution Outlines and Comments to Exercises Chapter 1 Preliminary Test (page 3) 1. Hi @wissal, please find below link and formula for calculating RSRQ ans RSRP in lTE. The aim is to produce the greatest possible difference between the useful signal and the interfering signals and the noise floor (Signal-to-interference-plus-noise ratio, SINR). Use calculator to approximate h. 5 dB and NF of 9 dB Sensitivity = KTB + SINR(dB) + NF (dB) = -84 dBm Case2 If SINR = -1 dB,NF = 9 and BW of 5 MHz Sensitivity= -99. 10 Mass/force example. Check if a number is palindrome or not. 2013 11 Power levels of the different signal components after digital cancellation. Watts to dBm conversion calculator How to convert dBm to watts. 78 dBm ; RSRQ (dBm) = -10. Overview of downlink Cell Reference Signals. 14 / 180) = 1. cc: antenna-model. The power conversion of dBm to watts is given by the formula: P (W) = 1W ⋅ 10 (P (dBm) / 10) / 1000 = 10 ((P (dBm) - 30) / 10) Example. throughput to be achieved for that particular RB as well as the number of RBs to be allocated by eNodeB to user [9]. My SINR is almost always in the negatives and my RSRQ is almost always between -28db and -32db. Even at a time instance, different CRs may be operating in different SINR regimes. The following example shows two contacts in series and a single output coil. MIMO (Multiple Input Multiple Output) sets MIMO. The components of the SINR calculation can be defined as:. It is this bandwidth that we will use in our calculation of the receiver noise floor (kTB). Good data redundancy as there is data parity. 24 (2018) 1101{1110. Examples Programs; Reference scenarios. Example of THD Calculation Figure 3 below is the output waveform from the amplifier under test. Phase noise spectrum is de-scribed in terms of a designed estimator based on a stochastic signal model of. Calculate the following integrals by changing to polar coordinates: (a) Z2 0 Zp 4 x2 0 p x2 +y2 dydx; (b) Z1 0 Zp x x2 p x x2 p x2 +y2 dydx: Solution (a) Z2 0 Zp 4 x2 0 p x2 +y2 dydx = Zˇ=2 0 Z2 0 r2 drd = 4ˇ 3. If there are more than c/2 0’s, then decode the message as 0. The improvement consists in the application of the SINR prediction for calculation of dynamic threshold used for the NCL reduction. Find the matrix A for the mass/force example in the lecture notes. Shot noise is the basic component of the internal noises of electronic devices, which cause the distortion of weak signals and limit the sensitivity of amplifiers. 18 Individual Tones of the Swept PRF PSD frequency (MHz) 585 586 587 588 589 590 591 592 593 594 595 milli wa tts 0. x 4=3 + y 16 = 1. 79dBm ; PRBs/BW = 50. Do not delete the top test line (it has the equations). The whole MTD wiring is carried out for at least tree identically channels (Σ-channel, Δ Az-channel and Δ El-channel). mesh(X,Y,Z) creates a mesh plot, which is a three-dimensional surface that has solid edge colors and no face colors. Increase Amplifier Power and Volume Calculator How much do you need to increase the gain of an amplifier to make it sound twice as loud: 3dB, 6db or 10 dB? This amplifier power and volume calculator will help you understand that doubling the amplifier power does not double the sound pressure level (SPL) or the perceived loudness. It is not reported to the network. We will use this captured signal in our THD calculation example. tive to the optimal SINR due to the SMI approximation of w MVDR do not exceed 3 dB if KZ2M. can simulate Inter-cell/multi-cell Interference Energy efficiency and Power control Mobility & Handovers issues Multi-User Scheduling BLER & HARQ techniques SINR-to-Date Rate. 5 dBm Looking at both cases tells me sensitivity improves with a negative SNR which I dont understand. And cosine and tangent follow a similar idea. (triangle not drawn to scale) To find the measure in degrees of angle A using the sine inverse, recall that Use a scientific calculator *Make sure your calculator is in degree mode 30° = A Let's look at an application problem. Active Oldest Votes. 2008-07-03 IEEE 802. SINR is the reference value used in the system simulation and can be defined: Power Calculation Example. 2013 11 Power levels of the different signal components after digital cancellation. Also, many calculators (standard in Windows system on computers) will show: "sinr" results if you use "radians" for THETA; and, "sin" results if you use "degrees" for THETA. 7 a Annex 2 in Appendix 4). Snell's law of refraction. Choose a web site to get translated content where available and see local events and offers. Each colored contour of the map defines the areas where the corresponding SINR is available to a mobile receiver. from RHR strike), and is entered directly if RHR rake is <90 [examples lines 4 and 5 below], or is calculated (180-column C)[examples lines 1-3 below]. 26, page 7). 1 SINR upper bound for different detectors 75 5. The figure to the right shows the paths of a 2x2 or 4x2 LTE system as a waterfall diagram,. The SINR calculation of the WLAN signals is converted to an equivalent SINR to be compared with the SINR of the WCDMA channel. S I N R = P I + N, where P - is useful signal power, I - interference signal power and N - noise power in the band of interest. Example 1: P A =2 and P B =1 (with 3 dB power boosting for RS) P A =2 implies ρ A = 0. A Answers, Solution Outlines and Comments to Exercises Chapter 1 Preliminary Test (page 3) 1. The technique “trains” on this knowledge. At what speed will this wave travel? 2. Example of THD Calculation Figure 3 below is the output waveform from the amplifier under test. A wave has a frequency of 46 Hz and a wavelength of 1. (a) Find P1 and P2 with minimum total power such that the signal to interference plus noise ratio (SINR) for both receivers is at least 15dB. We have seen two examples, one went to 0, the other went to infinity. 65 degrees Ok how do I actually enter that into a calculator? What are the actual physical steps (which buttons do I press) on the calculator to get that answer? This is what I was told I have a TI-83 Plus. First,countthenumberof1’sinr. degrees), then R = 90 x (3. RS SINR is the most important factor impacted the network capacity. While some of the specifications can be directly translated into requirements of an RF transceiver, other specifications require a detailed review. SINR calculation in the Downlink. 6: SINR l = E M tN 0 1 [HHH] 1 l;l (6) where H l;l stands for the (l;l) entry of the channel matrix H. 104 [1]) contain many complex test cases. I don't understand yet. For example, a 4x4 SU-MIMO configuration would use four antennas at the user’s terminal and four antennas at the base. Example 1: SNR (SINR) vs Throughput in a LTE Live Network. As a matter of fact, measuring SINR at receiver is not a trivial task. 1 Example breakdown of channel bandwidth with RB-level granularity. minimum assumed SINR, this is only an example without loss of generality, reflecting typical SINR requirement for coding techniques used in wireless and cellular receivers but the concepts and results hold for other SINR assumptions). >,sinr 2q 3 s,sinr 3q 3 s,sinr 4q 3 s,sinr 5q 3 s,sinr 6q 3 s,sinr 7q 3 s,sinr 8q 3 s,…E t √3 2, For Example, please refer to Tutorial Note #25 in MATH202. SINR is used a lot by operators, and the LTE industry in general, as it better quantifies the relationship between RF conditions and Throughput. Processing. 5dB(bad) to -3dB (good). [4 marks] A ship leaves port A on a bearing of. My SINR is almost always in the negatives and my RSRQ is almost always between -28db and -32db. 2 SINR of subspace blind CM detector versus the number of symbols for synchronous CDMA system (SNR=18dB, 5 known user, 2 unknown user). The calculations can take markedly longer for small tau values eg less than 0. The authors in [3] focus on spectrum access and mode selection in D2D communications in cellular networks where users form a PPP and BSs a triangular lattice. **Note: All of our calculators allow SI prefix input. For example, if a client device's radio receives a signal at -75 dBm, and the noise floor is -90 dBm, then the effective SNR is 15 dB. mesh(X,Y,Z) creates a mesh plot, which is a three-dimensional surface that has solid edge colors and no face colors. LTE RSRP and RSRQ CALCULATOR EXAMPLE: Input : BW = 10 MHz , RSSI = -79 dBm. 26, page 7). Pilot contamination Interference from all cells 1/(Channel estimation quality) Same thing for zero-forcing (ZF) processing: Cancel interference spatially. Step 2: Calculate the corresponding RBIR metric over the two streams for a given channel matrix ‘H’ , SINR and parameter ‘a’ determined from Table 4. Current random access systems with spatial reuse, for example IEEE 802. 1 CiteScore measures the average citations received per peer-reviewed document published in this title. GSO vs GSO satellite networks) The ROP defines. ’ ‘He applied sinusoidal compressions to the top of the I, and recorded how the structure damped the vibrations. teltonika-networks. For example, if someone prefers dark chocolate to milk chocolate, they are said to derive more utility from dark chocolate. 88 MHz 12 clk j f N 2 21010 Where: N= Phase Noise Power (dBc) f0, f1= frequency limits of integration j= clock jitter MHz fs dBc Hz j 299. Clay minerals and metal oxides, as important parts of the soil matrix, play crucial roles in the development of microbial communities. A market for this US-based LTE operator utilized the IMNOS (Integrated Mobile Network Optimization Software) modules - Audit and Ad-hoc Planner - to resolve PCI problems. 78 dBm ; RSRQ (dBm) = -10. A wave with a frequency of 14 Hz has a wavelength of 3 meters. Trigonometry Practice 1 (Calculator) [123 marks] 1a. UEs typically use SINR to calculate the CQI (Channel. For more complex waves such as the height of a water wave in a pond after a stone has been. Lets try to calculate RSRP, RSSI and RSRQ for one very. The fundamental frequency is at 2. SINR = R*green = Sgreen Sblue + noise Consider doing a back-of-the-envelope calculation before plunging into system design 40 Takeaway Message. Following equations/formula are used in this LTE RSRP calculator/LTE RSRQ calculator. suggested in [16]). We show in the subsequent sections that the calculation of both the joint and marginal complementary CDFs (CCDFs) of the downlink SINR at an arbitrarily located user in the network are examples of a class of problems that are made tractable by pairing the. The uplink link budget has some differences in comparison to HSPA: specifically the smaller interference margin, no macro diversity gain (Soft handover gain) and no fast fading margin. py: model: angles. ’ ‘He applied sinusoidal compressions to the top of the I, and recorded how the structure damped the vibrations. In addition to conventional methods, such as introducing higher modulation types or providing larger bandwidths, this is also being achiev. SINR based handovers can provide users higher overall throughput than RSS based handovers since the available throughput is directly dependent on the SINR, and this algorithm results in a balanced load between the WLAN and. This example showed how multiple CSI processes provide feedback for DPS CoMP operation. Clay minerals and metal oxides, as important parts of the soil matrix, play crucial roles in the development of microbial communities. 78 dBm ; RSRQ (dBm) = -10. The authors have considered the impact of SINR imposed by collocated CR users on channel quality. Zero-forcing Beamforming (ZF-BF) is a spatial signal processing in multiple antenna wireless devices. SINR is used a lot by operators, and the LTE industry in general, as it better quantifies the relationship between RF conditions and Throughput. I don't understand yet. RSRQ(Reference Signal Recieved Quality) RSRQ is defined as (N x RSRP)/RSSI in 3GPP 36. This set was generated using the same distributions as the set used for the PS design, but is statis-tically independent. SINR Analysis for V-BLAST with Ordered MMSE-SIC Detection Ronald Bo¨hnke and Karl-Dirk Kammeyer Department of Communications Engineering University of Bremen Otto-Hahn-Allee NW1 28359 Bremen, Germany {boehnke, kammeyer}@ant. RSRP – The average power received from a single Reference signal, and Its typical range is around -44dbm (good) to -140dbm(bad). Key Features. The Eigenspace-based beamformers, by orthogonal projection of signal subspace, can remove a large part of the noise, and provide better imaging contrast upon the minimum variance beamformer. SINR Diagram- Theoretical. Receiving a Certain Channel. LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. 2uplink SINR: If the. I am trying to get cellular SINR(signal to interference noise ratio) for LTE module and then capacity using shannon capacity formula, Can anyone give me. RSRQ - Indicates quality of the received signal, and its range is typically -19. First,countthenumberof1’sinr. PHASE NOISE ESTIMATION In order to calculate SINR in the EAF optimization, we need the phase noise information. The HCN is modeled as a multi-tier cellular network where each tier's base stations (BSs) are randomly located and have a particular transmit power, path loss exponent, spatial density, and bias towards admitting mobile users. The Signal to Interference-plus-Noise Ratio (SINR) criterion for data reception (eq. Thus SINR can be used locally by CR mesh nodes determine the next hop candidate with the highest probability of success. UNBIASED MAXIMUM SINR PREFILTERING FOR REDUCED–STATE EQUALIZATION Uyen Ly Dang1, Wolfgang H. ; RSRQ - Indicates quality of the received signal, and its range is typically -19. The HetNet comprised of macro-cell and femto-cells. Speedtest shows 59ms ping, 15. In this paper , we quantify the SINR decrease in a fraction of each pack et through a binary appr oximation. Sine Look Up Table Generator Calculator. EVAL] [1] for evaluating 5G radio technologies. I'm struggling to understand the equation and the reasons for this equation from Matlab's acoustic. Resignation Letter Sample Library 2: Career-Specific Templates. The components of the SINR calculation can be defined as:. 2RE/RB equals to empty cell. Simply put, SINR is the ratio of the signal (desired signal) and the unwanted noise. Similarly, if QPSK is used instead of binary signalling, then M = 4. Equation (10) will be applied for both. SINR coverage condition but not the choice of the serving base station, we observe that it worsens the coverage particularly at small values of SINR. For each location, the signal source is the transmitter site in txs with the greatest signal strength. residue interference are independent with AWGN. However, the mechanism underlying such a process. We'll show you how to measure each of these in the Measuring Signal Strength and Signal Quality section below. A very simple. This would then reflect as a signal strength of 15 dB for this wireless connection. The radiation pattern or array factor is given for 2D antenna arrays, in analytical form (equations) and plots (graphs). Example result, increasing digital cancellation (Case A) 25. Active Oldest Votes. Problem 3 A triangle ABC has side a = 12 cm, side b = 19 cm and angle A = 80 o (angle A is opposite side a). = sini sinr. For example, communication through a band-limited channel in presence of noise is a basic scenario one wishes to study. 7 a Annex 2 in Appendix 4). Choose a web site to get translated content where available and see local events and offers. When c is odd, each codeword will be decoded unambiguously. 15 kHz is the nest resolution used for transmitting data in LTE networks. The validity of our analytical derivations is conﬁrmed via Monte-Carlo simulations for various system settings. The instructions used would be STR X0, AND X1, followed by OUT Y0. The Eigenspace-based beamformers, by orthogonal projection of signal subspace, can remove a large part of the noise, and provide better imaging contrast upon the minimum variance beamformer. m, where the AWGN BLER curves are. The SINR can also be used to determine an optimal routing path over the whole network. This example brings up another point. doc: introspected-doxygen. What you could do is, in the UE object +network_elements/UE. Calculator shows maximum throughput which are reachable in case of selected modulation. sitivity to noise,) will require an SINR of about 33 dB for the same SER. I am working on Omnet++-5. mesh(X,Y,Z) creates a mesh plot, which is a three-dimensional surface that has solid edge colors and no face colors. A second ship leaves port A and sails directly to C. The amount of digital cancellation is increased to sustain a 3-dB loss of SINR. 5(a) and (b), we calculate average SINR loss in (a) and the worst case SINR loss. 5dB(bad) to -3dB (good) Example 3 >: RSRP/RSRQ/RSSI/SINR at driving/handover situation. For the power control example in the lecture notes, consider the eﬀect of channel noise. For example, Optimus requires the available spectrum to be ﬁnely partitioned into a large number of homogeneous bands, which is typical in spectrum distribution but not in WiFi channel allo-cation. Trigonometry Practice 1 (Calculator) [123 marks] 1a. SINR comparison Half-duplex FDD provides very good UL SINR even with fixed DL 19 -20 -15 -10 -5 0 5 10 0 0. MOV definition: (1) An assembly language instruction that copies data from one location to another. SINR based handovers can provide users higher overall throughput than RSS based handovers since the available throughput is directly dependent on the SINR, and this algorithm results in a balanced load between the WLAN and. The function findRangeSINR is to calculate the SINR of each femto. When creating a custom expression using futures contracts, you must use parentheses to group the order of the calculation in the expression:. Pss and sss in lte sharetechnote. Many KPIs can be adversely impacted if the network lacks an optimal PCI plan. Purpose: An example of a business use case diagram for airport check-in and security screening. Signal strength computation using free space propagation or other propagation models. Formula to calculate DL code rate for a non-special subframe (No PSS, SSS, PBCH is transmitted) is as follows: Code Rate = (input bits+ CRC bits)/(numOfRes * Q') In above equation, input bits = tbs + parity bits (3GPP 36. 26, page 7). The calculation of the Downlink RS signal uses 4 symbols in every third subcarrier resulting in a total of 16. scanning instead. Overview of downlink Cell Reference Signals. For example, when the first system with universal frequency reuse (N=1) was deployed, no one realized how bad the out-of-cell interference could be when the load became heavy. For example, if the receiver receive two signals in the same time, signal A is useful, signal B is interference, how can the receiver distinguish these two signals? In this case, the RSSI represents signal A or signal B or the sum of A and B? and how to calculate the SINR. 7dB for UL 1Mbps and MCS 6/27RBs. The Required SINR is the main performance indicator for LTE and the accurate knowledge required SINR is central to the authenticity of the throughput and thus the process of dimensioning. This gives us. Details on Power, Interference & SINR •MRT delivers more power, but ZF suppresses interference, providing much higher SINR 20 Mean Over Route MRT ZF Received Power (dBm)-49. 5 GHz and the output amplitude level is at 3. RSSI for LTE is a calculated from several other signal related measurements: RSSI = wideband power = noise + serving cell power + interference power. (ii) Real and apparent depth Apparatus required Parallel sided block Sheet of paper with writing on it Travelling microscope A pot of fine powder block Experimental instructions Place the sheet of paper on the. 4 data frame structure and channel access protocol overhead are described first. This calculator generates a single cycle sine wave look up table. The radiation pattern or array factor is given for 2D antenna arrays, in analytical form (equations) and plots (graphs). Since the logarithmic ratio of 100 subcarriers to one subcarrier is 20 dB (e. on the signal-to-interference-noise ratio (SINR), i. I: indicates interference power of other measured signals. SINR/SNR – The signal-to-noise ratio of the given signal. a basic feature for them, and hence the femto-cells will be a source of strong and unpredictable interference. ∆epsE sinR epsH Fig. Let's look at an example of how to use the inverse sine function to find the measure of an angle in a right triangle. What are the sin, cos, and tan buttons on my calculator for? (And how do they work?) When might I ever actually want to calculate the sine or cosine something? Those, obviously, are all very important (and very reasonable) questions to ask. teltonika-networks. Outlines the C/I calculation methodology for interference assessment under No. 78 dBm ; RSRQ (dBm) = -10. SINR comparison Half-duplex FDD provides very good UL SINR even with fixed DL 19 -20 -15 -10 -5 0 5 10 0 0. Numerical examples show that this method has an excellent SINR performance and a complexity comparable to the standard MVDR beamformer (which has poor performance). RSRQ(Reference Signal Recieved Quality) RSRQ is defined as (N x RSRP)/RSSI in 3GPP 36. m, where the AWGN BLER curves are. 𝑀→∞: Finite limit on SE Noise/Transmit Power. The terms in the sum on the right hand side are 0 unless either i = j = k = l, which happens n times, or when there are two pairs of matching indicies, which happens ( n 2) ( 4 2) = 3 n ( n − 1) times. We decided to include even more free samples due to popular demand. It sails a distance of to reach point C. Following plot is from the data captured by a drive test tool Azenqos Drive Test tool (AZQ Android). For any LTE network, good PCI planning is a fundamental requirement. The SINR calculation of the WLAN signals is converted to an equivalent SINR to be compared with the SINR of the WCDMA channel. cos*=cos A cos B cos C +(if grade in and grade out has one above horizon and one below horizon)-(if both above or both below horizon ,example grade in -5%grade out +8% or grade in +5% grade out-6%)sinA sinB ,then you can calculate the roll for this bend to get the proper vertical angle and grade. RSRP - The average power received from a single Reference signal, and Its typical range is around -44dbm (good) to -140dbm(bad). In my past experience, some devices running Android ICS 4. Based on your location, we recommend that you select:. Following equations/formula are used in this LTE RSRP calculator/LTE RSRQ calculator. The solution to the problem involves the use of the above equation for the critical angle. The amount of digital cancellation is increased to sustain a 3-dB loss of SINR. how the different type of carriers are categorized according to the class of emission (itemC. For a ﬁxed modulation and coding scheme and with interference treated as noise, e. >,sinr 2q 3 s,sinr 3q 3 s,sinr 4q 3 s,sinr 5q 3 s,sinr 6q 3 s,sinr 7q 3 s,sinr 8q 3 s,…E t √3 2, For Example, please refer to Tutorial Note #25 in MATH202. 14 / 180) = 1. a basic feature for them, and hence the femto-cells will be a source of strong and unpredictable interference. However, the mechanism underlying such a process. The goal is to determine if we could induce the station to. Throughout, examples and explanations of building and interfacing cognitive components to the cognitive engine enable the use and extension of the cognitive engine for future work. Prove the identity sin 4 (x) – cos 4 (x) = 2sin 2 (x) – 1 I can't tell which side is more complicated, but I do see a difference of squares on the LHS, so I think I'll start there. Helper SNELLS LAW AND THE CRITICAL ANGLE Snells Law states nr/ni = sin i/sin r Where nr = the refractive index of the medium that light is passing into. It sails a distance of to point B. SINR can be defined as the ratio of the signal power to the summation of the average. A high‐speed LTE data network requires excellent SINR distribution planning besides parameter optimization and troubleshooting. SINR is de-ﬁned as the ratio between the signal power S1 of the desired transmission to the combined power of all interfering trans. The following values are supported QPSK, 16QAM, 64QAM. Thus, the data rates of a wireless link in both directions are asymmetric to each other depending on the surrounding channel condition. ; RSRP - The average power received from a single Reference signal, and Its typical range is around -44dbm (good) to -140dbm(bad). sharetechnote. Throughput = 75376 * 1000 = 75. 376*2 = 150. Outlines the C/I calculation methodology for interference assessment under No. for example, if D=90 (i. When c is odd, each codeword will be decoded unambiguously. Keywords SINR estimation, hidden terminal problem, broadcast ve-. LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. The technique “trains” on this knowledge. Even at a time instance, different CRs may be operating in different SINR regimes. Signal-to-interference-plus-noise ratio (SINR) is by definition. I am trying to get cellular SINR(signal to interference noise ratio) for LTE module and then capacity using shannon capacity formula, Can anyone give me. Our approach enables signi cant improvement in the reliability of broadcast vehicular communications. When we first learn the trigonometric functions, we learn how to use them to find missing side-lengths & angles in right-angled triangles. calculate the fraction of the overlap along with the mutual interference generated by the SU and the PU pack ets. org/wiki/Signal-to-interference-plus-noise_ratio. SINR is a measure of signal quality as well but it is not defined in the 3GPP specs but defined by the UE vendor. Measure , calculate , and draw in the refracted ray with the calculated angle of refraction. Also covers measurement of Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ). 79dBm ; PRBs/BW = 50. Rather than relying on regulation by a dedicated RNA or protein, the translation speed of ribosomes decreases at certain serine codons, resulting in lower SinR levels, which as a consequence, contributes to derepression of SinR-controlled genes. The SINR calculation of the WLAN signals is converted to an equivalent SINR to be compared with the SINR of the WCDMA channel. The calculation of the normal direction is harder under these circumstances, but the behaviour is still predicted by Snell's Law. No plot is displayed and any graphical only name-value pairs are ignored. From Equation (8), the SINR with -coefficient can be written as: SINR= (10log10[SF]+Pk)-(Pi+N0+10log10[ x Rc]) (10) From the equation, the best value of will be chosen for next calculation. The Sine Rule. Use calculator to approximate h. For example, when the first system with universal frequency reuse (N=1) was deployed, no one realized how bad the out-of-cell interference could be when the load became heavy. The following example shows two contacts in series and a single output coil. a basic feature for them, and hence the femto-cells will be a source of strong and unpredictable interference. 6 Vpp (driven into saturation). Free polar graph paper is available. RSSI is roughly equal to RSRP + 25. For example, shot noise appears as acoustic noise in the loudspeaker of a radio, “snow” on a television screen, and “grass” on a radar screen. The SINR in the downlink is calculated for each RB assigned to data transmissions by dividing the power of the intended signal from the considered eNB by the sum of the noise power plus all the transmissions on the same RB coming from other eNBs (the. Use calculator to approximate h. Strike is entered in right-hand-rule (RHR) format: strike azimuth (0-360°) is 90° counterclockwise. so for example a signal-to-noise ratio of 1000 is commonly expressed as 10 * log10(1000) = 30 dB. For example, if the SINR threshold for RLFs is −8 dB and a UE is connected to the strongest cell that exceeded the 2nd strongest cell by 3 dB then more than 12 interferer cells with equal strength to 2nd strongest cell can lead to RLFs. It is not reported to the network. Increase Amplifier Power and Volume Calculator How much do you need to increase the gain of an amplifier to make it sound twice as loud: 3dB, 6db or 10 dB? This amplifier power and volume calculator will help you understand that doubling the amplifier power does not double the sound pressure level (SPL) or the perceived loudness. A market for this US-based LTE operator utilized the IMNOS (Integrated Mobile Network Optimization Software) modules - Audit and Ad-hoc Planner - to resolve PCI problems. Optimus assumes that the interference condi-tion is modeled by the average or worst case SINR and. Check the calculations above that the Gaussian curvature of the upper half-plane and Poincar´e disk models of the hyperbolic plane is −1. I divide the total number of femtousers into 3 types N1, N2 and N3 and i want to calculate the SINR of each type of user. 11s deﬁnes HWMP, which is a combination of. Pilot contamination Interference from all cells 1/(Channel estimation quality) Same thing for zero-forcing (ZF) processing: Cancel interference spatially. 5 describes adaptive algorithms that iteratively approximate the optimum beamforming solution. This information is shown in the diagram below. 57 radians (which equals 90 degrees). the data rate increases as the SINR value becomes high1. So to find SNR we first need to calculate noise Power. ‘Constitutive expression of SinR from P 3 damps the oscillations, leading to a stable steady state. LTE Vienna Simulator System-Level simulation Inter-cell RRM Multi-cell RRM Deployments Macrocell as a Primary Network Femtocell as a Secondary Network Block type: 5x5 grid, House dimensions: 10x10 What system-level sim. Calculate SINR and Array-Gain for acoustic Beamforming in Matlab. Phase noise spectrum is de-scribed in terms of a designed estimator based on a stochastic signal model of. RSRQ to SINR mapping. from RHR strike), and is entered directly if RHR rake is <90 [examples lines 4 and 5 below], or is calculated (180-column C)[examples lines 1-3 below]. Keywords SINR estimation, hidden terminal problem, broadcast ve-. Create a simple calculator. All answers should be given to 3 significant figures unless otherwise stated. SINR value defines the MCS to be used for a RB i. The results hold for the whole SINR domain ie when the SINR threshold tau>0, and not just tau>1, and for arbitrary fading/shadowing or "propagation effects". 𝑀→∞: Finite limit on SE Noise/Transmit Power. Clear signal has a SINR of over 10 dB, while low quality signal has a SINR of under 5 dB. 24 (2018) 1101{1110. Θ crit = sin -1 (n r /n i) = invsine (n r /n i) Θ crit = sin -1 (1. If you wish to get the typical graph of the sine function, for example, you must use SINR X. Trignometry Table of sin, cos, tan, cosec, sec, cot is useful to learn the common angles of trigonometrical ratios are 0°, 30°, 45°, 60°, 90°, 180°, 270° and 360°. RSRQ - Indicates quality of the received signal, and its range is typically -19. All resource elements are carrying data. Outlines the C/I calculation methodology for interference assessment under No. The sine function sin takes angle θ and gives the ratio opposite hypotenuse. Due to multipath, the signals of the cells arrive to the receiver by M different paths, so the average SINR at a given point m is. The fundamental frequency is at 2. Refractive index, also called index of refraction, measure of the bending of a ray of light when passing from one medium into another. 1 SINR upper bound for different detectors 75 5. 1dB for DL 3. ’ ‘He applied sinusoidal compressions to the top of the I, and recorded how the structure damped the vibrations. SINR is used a lot by operators, and the LTE industry in general, as it better quantifies the relationship between RF conditions and throughput. The sine rule is an equation that help us find missing side-lengths and angles in any triangle. The unwanted noise comprises of all the external interference and internaly generated noise. Data blocks are Striped. A market for this US-based LTE operator utilized the IMNOS (Integrated Mobile Network Optimization Software) modules - Audit and Ad-hoc Planner - to resolve PCI problems. The formulas used in within the calculator is below, where: RSRP is the Reference Signal Received Power and is measured in a single RE of the LTE REsource Block. As an application example, the proposed methodology is used together with stochastic geometry theory to characterize the average SINR and rate in heterogeneous cellular networks (HetNets). a basic feature for them, and hence the femto-cells will be a source of strong and unpredictable interference. We have seen two examples, one went to 0, the other went to infinity. Note, that the GEO satellite calculates also SINR, because the two phase SINR calculation has been adopted. Home; Hexbin map tableau. Lets try to calculate RSRP, RSSI and RSRQ for one very. The validity of our analytical derivations is conﬁrmed via Monte-Carlo simulations for various system settings.