Lte how to determine cqi. Simply put, the code rate can be defined as the ratio of the data rate that is allocated for a subframe and the maximum data rate that ideally can be allocated in the subframe. CQI Table . A UE shall transmit periodic CQI/PMI or RI reporting on PUSCH as defined hereafter in subframes with PUSCH allocation, where the UE shall use the same PUCCH-based periodic CQI/PMI or RI reporting format on PUSCH. The latter reports are explicitly requested by setting the CQI request field in connection with an uplink grant. This is the most important item UE has to measure for cell selection, rese First Calculate N'_RE using following formula. Select CQI/PMI. The breakdown of PDCCH structure and its aggregation layers provided a clear understanding of how scheduling allocations work for PDSCH and PUSCH, making it easier to comprehend the overall optimization process. We propose a novel Channel Quality Indicator (CQI) calculation scheme in LTE\\LTE-A systems. 1-2: 4-bit CQI Table 1> 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. Periodic reporting: the UE reports CQI, PMI, and RI with reporting periods configured by the higher layer. Jan 18, 2024 · The mapping between TBSI and TBS values is defined in LTE standards, enabling UEs to interpret and calculate the appropriate TBS. Similarly, for calculating frequency domain resources (physical resource blocks), one need to use ‘Find CSI Resources’ button. 00001. There are several different DCI format, each of which has different set of intormations it can carry. CQI is a crucial metric for optimizing the modulation and coding This video helps you to understand the LTE/VoLTE basic Parameter. 30 indicates the best channel quality and 0,1 indicates the poorest channel quality. The proposed system has been simulated and evaluated using the Vienna system level simulator. (2) In a typical R8-LTE OFDM the number of sub-carriers is large. “Signal-to-Interference-plus-Noise Ratio” or SINR is a quality measurement type in wireless network. 'PUSCH 1-2' A single wideband CQI index for codeword 0, followed by a single wideband CQI index for codeword 1. Bruno Clerckx, Claude Oestges, in Mimo Wireless Networks (Second Edition), 2013. In CQI, problems occur because of poor design, unclear instructions, or poor leadership. Two codewords: 'PUCCH 1-1' A single wideband CQI index for codeword 0, followed by a spatial differential CQI offset level for codeword 1. In order to calculate nPRB for PUCCH Format 2/2a/2b, cqi-PUCCH-ResourceIndex should be taken from CQI-ReportPeriodic. CQI is fixed as per modulation, so if you want to have batter CQI. Oct 29, 2015 · The principle of link adaptation is essential for the development of a radio interface project for efficient packet switching data traffic [1, 2]. This brief can help you develop a CQI plan and communicate it to others in your organization. In this paper, we This site is for everything on 4G/LTE. To improve CQI and SINR: 1) Reduce overlapping servers within 3-5dB to remove interference 2) Configure PCI planning according to modulation schemes like MOD3, MOD6, and MOD30 3) Check uplink parameters like BSR, PHR, UE power level, and link adaptation quality improvement (CQI) plan. Question: (1) Explain how the CQI (Channel Quality Indicator) is used to determine the bit rate in an LTE radio link? In your answer state if the CQI is calculated at the UE or the Base station and why. Feb 1, 2017 · In time domain the required spacing can be calculated considering the minimum sampling rate based on Nyquist‘s sampling criteria to support high speed mobility like 500 Km/h, we should calculate Tc = 1/ (2*fd). RI tells the number of layers and PMI tells the precoding matrix. The CQI range is between 0 and 15. (LTE also has CQI for its own purpose). to calculate the power of PDSCH type B, we need to calculate the value of rho B. improve your SINR. Multi-User MIMO. However, I am still searching for a manner to determine or calculate RSRQ, CQI, SINR, SNR, HO total attempts and HO successful attempts. txt), PDF File (. Oct 26, 2017 · CQI seeks solutions to produce the best outcome, instead of blaming people for problems that arise. In [ 18], various propagation models with path loss for LTE data measurement in urban areas were compared. This example highlights the use of the lteCQISelect function which provides estimation of the CQI. CQI-to-SNR mapping for the LTE-A is illustrated on Fig. Use statistical analysis to identify and detail problems and strengths. fd is known as Doppler shift and can be calculated by fd = (fc * v) / c, where fc is the carrier frequency that equals i. Before full commercial deployment of LTE, downlink SNR to CQI mapping for . You may know that MCS (Modulation Coding Scheme) is related to Modulation Order (Modulation Depth, e. But there are no details as to how this table is drawn (See the image below). g. The current PMI is used to configure the precoding for the PDSCH. a report is for a higher layer configured eMIMO type of the aperiodic CSI configured for the UE on the serving cell c #3. LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. CQI is utilized by the versatile to demonstrate the channel quality to the eNB. LTE CQI. Panel: The definition of the panel can be illustrated as below (I don't think I need explain further in writing). CQI is the data that UE transmit to the network and essentially it infers the two Sep 12, 2020 · High PRB Utilization && Low DL Spectral efficiency == Means high CE users that consume more PRB utilization due to bad DL-SINR/DL-CQI/DL-MCS so higher PRB Utilization & high DL Latency in scheduling Before taking your online exam, you must read the CQI and IRCA Online Exams: Guide for Learners: In particular, please read the following sections of the Guide: Section 5: Equipment and System Requirements to check your IT equipment and internet connection meet the minimum specification requirements to run the exam successfully. rho B depends on the power factor ratio of rhoB/rhoA. Mar 19, 2024 · In LTE systems, the CQI value ranges from 0 to 15. 3. The purpose of this document is to guide mobile operators through network deployment and optimisation based on service experience. I'll be grateful if anyone can provide me with Feb 4, 2020 · indicators such as the LTE reference signal received power (RSRP), signal to interference plus noise ratio (SINR), and traffic load. pdf) or read online for free. the report is for the activated CSI-RS resource for the serving cell c . CQI is the information that UE sends to the network and practically it implies the following two: Finally we have the following table to map CQI value to modulation and coding rate. Jan 1, 2015 · In the first subplot, we show RSRP and SNR values reported by the device. Knowledge of absolute RSRP provides the UE with essential information about the strength of cells from which path loss can be calculated and used in the algorithms for determining the optimum power settings for Dynamic Spectrum Sharing (LTE/NR) DSS complicates the calculations. In the LTE modem web configurator on the System Monitor > LTE Status page, you can view the current state of the LTE connection. This modulation order is defined as a Parameter called Qm in 3GPP and the relationship between MCS value and Qm is defined in a little bit differently for PDSCH and PUSCH in the three tables How To Improve Cqi In Lte [134w36o28jn7]. How CQI is Determined: The CQI is based on the signal-to-noise ratio (SNR) observed on the wireless channel. LTE UEs normally use SINR to calculate the CQI (Channel Quality Indicator) that is reported to the network. User Equipment (UE) will measure and estimate the CQI in order to maximize the throughput performance. We would like to show you a description here but the site won’t allow us. There are roughly two approaches to estimate the max throughput. 2. As the name implies, it is an indicator carrying the information on how good/bad the communication channel quality is. to use rho A as a ratio, to calculate the power in Watt, then rho A is defined by: the rho A equal 0. Apr 6, 2022 · CQI (Channel Quality Indicator). Comparing to control channel in other technology (WCDMA, HSPA), LTE DCI has a lot more additional information in it. RSRP and RSRQ are key measures of signal level and quality for modern LTE networks. Next Calculate Ninfo as follows : Next step is same as downlink TBS determination process as shown below. In other words, it means "The code rate is defined as the ratio between the transport block size and the total number of physical layer bits per subframe tha Modulation is the process of changing the form of a signal to transmit it over a channel. Refer to CQI,PMI,RI Report section for this. The results show that the estimation of the CQI is dropped significantly to (2–3) as the UEs speed is increased to 150 km/h. For the 4×4 MIMO system configuration targeted in LTE, computation of the optimal RI/PMI/CQI places an enormous burden on the mobile terminal, as much as making the CSI feedback module one of the most resource intensive baseband blocks. a report is triggered for serving cell c #2. CQI is an indicator conveying the data on communication channel quality. Mar 17, 2023 · In LTE systems, the CQI is transmitted using a specific channel called the Channel Quality Indicator Channel (CQI Channel). Modulation can be analog or digital, depending on the type of signal and channel. The BLER criteria for table 1, table 2 is 0. As a step forward, we use an LTE emulator to run a series of experiments put scheduling for LTE based on CQI feedback. To determine the quality of the signal, pay attention to the following fields: Signal strength; RSRP; RSRQ; SINR; CQI Feb 13, 2014 · Similar to HSPA the CQI definition is targeted at 10 % BLER whereby the overall energy per bit is nearly minimized. In addition to resource allocation, it can carry Power Control Command, CSI Report Request or CQI Report Request etc. CQI stands for Channel Quality Indicator. The goal of CQI may include improvement of operations, outcomes, systems processes, improved work environment, or regulatory compliance. This detailed explanation explores the process of determining CQI in LTE, covering the factors influencing CQI, measurement See full list on mathworks. In cellular networks, when a mobile moves from cell to cell and performs cell selection/reselection and handover, it has to measure the signal strength/quality of the neighbor cells. In LTE, CQI has only 15 codes. Mar 3, 2024 · Thank you for sharing this insightful article on LTE throughput optimization and the role of PDCCH enhancements in achieving it. If you know the MCS index and number of RBs, you can calculate the throughput for that specific MCS idex and RB as follows: #1. In the time domain, periodic and aperiodic CQI report-ing are supported. 4 %Çì ¢ 5 0 obj > stream xœÝ]Y“ ·‘ {í=h‡×{ü€yÚíŽà´ W e?éàÚ²e $µ ‡ä‡áœ4ç 9#™þ!û{7 ª²º{hy ÖŠp «q$òøò óÍA·Qú ‹ÿ•‡ã«Gï=õ ço ¥× O • ^Ÿ?úæQؘø¿ô Ÿ ¯ >xN ÃÁ°1½¶ ÏÏ u›a Ý ~W Êô›> xm7–~¾zôÕêãµR›Áõju½>TfÓ÷ƒ]Ý íÆ) Ôêtí7&tÚ^§ß½ö–š*½é”U«£õ¡ÛØ^9… ^òãÍú°Û íû how to Improve Cqi in LTE - Free download as Text File (. 214 Section 5. Introduction. 1 [ 1]. Oct 5, 2019 · SINR is used by the LTE industry in general and by many operators, as it quantifies the relationship between Throughput and RF conditions better. MCS Index depends on CQI. Then map it to a number of Resource Blocks using the table above. In case of MIMO usage 'Bits per RE' column should be multiplied by number of data streams to get a final value. Max Throughput Estimation. cqi-Table: For now, three different types of CQI table are used as shown below. The left and right figures show that the CQI index hikes up with the modulation order M, data throughput and required SNR levels In short, the number of ACK/NACK bits does not change by channel coding process, but the number of CSI (e. , 14-15): Indicates a high-quality channel with favorable signal conditions, allowing for the use of advanced modulation schemes and higher data rates. This site is for everything on 4G/LTE. It can be 1. The eNB adjusts the raw CQI value shared by the UE to find an optimum CQI and this provides a higher spectral efficiency. 1. In 5G systems, the CQI value spans from 0 to 31. This page on LTE CQI vs PMI vs RI describes difference between LTE CQI,PMI and RI. Interpretation: High CQI (e. Note that for RI=2, there are two CQI values, one for each codeword; for RI=1 there is one CQI value for the single codeword. Throughput Calculation Example - FDD. In LTE, digital Feb 5, 2024 · In LTE, there are 16 CQI indexes and 32 MCS indexes. CQI Adjustment Algorithms . 2, over a tapped delay line (TDL) channel. As the new CQI will affect all studies CQI Tables. To overcome this bottleneck, we present a reduced complexity, optimal, CSI feedback algorithm for LTE. TBS Calculation Process: 3. It is a common practice to use Signal-to-Interference Ratio (SINR) as an indicator for network quality. Jan 18, 2024 · CQI values in LTE typically range from 1 to 15, with higher values indicating better channel quality. Jun 23, 2016 · I found a way to measure RSRP, Asu Level and other LTE network measurements using methods getCellSignalStrength() and getCellIdentity() from the class CellInfo. Choose/define radio link quality. May 6, 2021 · One of the new enhancements is for the CQI tables within the 5G and LTE module. The UE report the CQI to support the various transmission modes open to them. The CQI generation process . DSS can be implemented via MBSFN and Non-MBSFN methods. g, CQI) increases to 20 bits. Thus, with the availability of estimation of CQI at LTE-A networks, action can be made to warn or reduce the UE speed. Unlike RSRQ, it is not defined in 3GPP specifications but it is defined by user equipment vendors with some special calculation methods in chipsets. Jul 11, 2024 · SNR (Signal to Noise Ratio) is the main factor used to determine the CQI, however other factors are considered as well. This CQI is for HSDPA. Aug 12, 2021 · Scheduling based on the reported channel state information (CSI), such as rank indication (RI), precoding matrix indicator (PMI), and channel quality indication (CQI), is an important characteristic of LTE system. 3GPP support both Single Panel and Multi Panel. It explains what the plan should cover and includes a sample outline and template for drafting your plan. However, even this kind of specialized equipment imposes a series of limitations to the collected CQI traces that need to be studied and addressed. Answer to Explain how the CQI (Channel Quality Indicator) is used to Oct 1, 2011 · Thus, from LTE system point of view, failing to estimate and report CQI properly will yield wrong assignment of radio resources during the scheduling process, and incorrect link adaptations which This site is for everything on 5G/NR. e 2 GHz for Sep 21, 2023 · NR-CQI (New Radio Channel Quality Indicator) is an important parameter used in 5G (fifth-generation) wireless communication systems. Сalculator allows to calculate the maximum throughput of 4G LTE network for DL (downlink) and UL (uplink) ADD CQI (MCS) option for Sep 19, 2014 · In Long Term Evolution (LTE) networks, resource allocation and link adaptation rely on the channel quality indicator (CQI), which is a quantized representation of the signal interference plus noise ratio (SINR). PUCCH is used for this. Case 2 : I_MCS is in 'reserved' range. RSRP and RSRQ Measurement in LTE. ICACT's SNR estimates seem to line up best with what I have observed. To calculate throughput we need to know MCS Index. 1 and the criteria for table 3 is 0. also, if possible then make Your PCI plan as per MOD3,MOD6 & MOD30. CQI reflects the channel quality and is reported via the modulation scheme and coding rate. User Equipment (UE) will measure and estimate the CQI in order to maximize Aug 30, 2023 · LTE optimal values. these value are calculated on the basis of cqi-ReportConfig that comes in RRC Connection Setup and RRC Reconfiguration. 3 CQI Feedback in LTE Both periodicity and frequency resolution to be used by a UE to report CQI are controlled by the eNodeB. Modulation and Coding Scheme (MCS) Adaptation: We propose a novel Channel Quality Indicator (CQI) calculation scheme in LTE\\LTE-A systems. < 38. What would happen if UE send inaccurate CQI ? In HSDPA, the CQI value ranges from 0 ~ 30. It provides information about the quality of the communication channel between the user equipment (UE) and the base station (gNodeB in 5G). Sep 1, 2011 · An overview of the so-called link performance model used in TD-LTE (Time Division-Long Term Evolution) system level simulations to determine the link CQI at reduced complexity of UE (User Equipment) shows that EESM and MIESM algorithms bring a similar throughput performance comparing to the ideal C QI choice, but mapping function of EESm method is simpler than MiesM method. In order to find the time domain resources (SFN and subframe) for transmitting periodic CQI/PMI/RI, use button ‘Find CSI Occasions’. The scheduler will determine which MCS should be imposed if the nth RB is assigned to the kth user. Jan 18, 2024 · Channel Quality Indicator (CQI) is a crucial metric in Long-Term Evolution (LTE) networks, providing information about the quality of the communication channel between the User Equipment (UE) and the eNodeB (base station). CQI is the information that UE sends to the network and practically it implies the following two Depending on instruction from the network, UE may periodically or aperiodically measure RI and report it to Network. SINR is used for calculating CQI. The mapping of CQI values to specific channel conditions is standardized, and it helps the eNodeB to determine the appropriate modulation and coding scheme (MCS) for data transmission. Here is a table of LTE/NR CQI values and what modulation/coding rate is used: May 24, 2017 · CQI stands for Channel Quality Indicator. 67 mWatt, then, the power of PDSCH type A is 33. The higher the CQI value, the better the channel quality. In HSDPA, CQI values range from 0-30 with higher values indicating better channel quality. However, these kinds of CQI mapping schemes always provide imprecise results in fading channels, since all of them ignore the channel quality degeneration caused by other factors. 41 mWatt. com There are two types of CQI transmission : Periodic and Aperiodic. CQI project development commonly includes defining the problem %PDF-1. Aperiodic reporting: can be used to provide large and more detail reporting in a single reporting instance via PUSCH. Nov 1, 2011 · CQI is very crucial in evolved Node B (eNodeB) to decide the corresponding modulation and coding scheme in LTE and LTE-A. Channel Quality Indicator Estimate and Multi-User Diversity. But I will explain the practical/intuitive meaning of RI here. Aside the feedback of the index of the preferred code-vector in the codebook, the BS requires an estimate of the SINR, denoted as Channel Quality Indicator (CQI), for every user in order to perform scheduling (including user grouping both the time-domain update rate and the frequency-domain resolution of the CQI, as discussed in the following section. In [17], they proposed a CQI calculation scheme for LTE/LTE-A systems. The network uses the CQI to determine the transport block size to use when transmitting data to the UE. SINR as an indicator is commonly used for network quality. Can someone share any references? Edit: I had found one table for CQI-MCS conversion here. Signal Pro now supports up to 64 entries in the LTE CQI tables. 3. gather CQI values and analyze their relationship to other parameters. In simple words, RI is an indicator showing how well multiple Antenna work. CQI indicators are formed for each customer station (UE, User Equipment) and each carrier frequency block. SNR-CQI mapping scheme, as well as SINR-CQI mapping scheme, is extensively studied in previous works. 2: A UE shall transmit periodic CQI/PMI, or RI reporting on PUCCH as defined hereafter in subframes with no PUSCH allocation. g, DCI0, RACH Response). Luckily, the calculations for LTE are a bit easier to understand compared to the overheads on the NR side. The performance of the CQI estimation is also tested. Assume that only 1000 sub-carriers are used to transmit data a. The CQI Channel carries feedback information from the receiver to the transmitter, enabling the transmitter to adjust its transmission parameters dynamically. Link adaptation in Long Term Evolution (LTE) systems dynamically adjusts the data rate of transmitted information (modulation scheme and channel code rate) to equalize the existing radio channel capacity assigned for each user. Initially, a channel model for MU-MIMO-LTE advanced network Aug 12, 2013 · CQI tells the channel condition and based on CQI value eNB will select the MCS . The current CQI and PMI are read from the oldest values in the CQI and PMI buffers cqiBuffer and pmiBuffer. There are two reporting modes in the time domain. Jun 27, 2014 · In LTE, the CQI performs an . See PUCCH Channel Coding page. MCS and Modulation Order . In this paper, we Download Table | SINR and CQI mapping to modulation and coding rate from publication: Adaptive CSI and feedback estimation in LTE and beyond: a Gaussian process regression approach | The constant LTE UEs typically use SINR to calculate the CQI (Channel Quality Indicator) they report to the network. 101 Section 9. Type 2 : CQI Measurement Accuracy Test. As shown in the table below, you would notice that the total number of CQI value stay same but the modulation mapping to each CQI index is redefined in 256 QAM (Table 7. 2 The plan helps grantees assess their CQI efforts and use the lessons they have learned to inform next steps. RSRP(Reference Signal Recieved Power) RSRP is the linear average of reference singal power (in Watts) accorss the specified bandwidth (in number of REs). NOTE : Regarding how each of these format are utilized and configured in signaling, check out this tutorial of Amarisoft TechAcademy. This example provides a testbench which shows that the LTE Toolbox can satisfy the CQI reporting performance test defined in TS36. Moreover, the maximum CQI on all RBs of the kth user can be defined as follows: To calculate LTE throughput the following steps should be performed: Define bandwidth. Since CQI is measured by user equipment (UE) and sent to eNodeB via a feedback channel, in time varying channel, feedback delay should be compensated with prediction based on previous CQI is very crucial in evolved Node B (eNodeB) to decide the corresponding modulation and coding scheme in LTE and LTE-A. 5, and RS power is equal to 66. important function in providing channel in formation to eNodeB. 214 - Table 5. Aperiodic CQI : CQI is transmitted by a special trigger (e. MBSFN was introduced in LTE for eMBMS which is a method to have multi-cast data (think of it like TV broadcast). 4G LTE Throughput calculator. Periodic CQI : CQI is transmitted periodically with a certain interval specified by higher layer message(e. 4, 3, 5, 10, 15 or 20 MHz. CQI . 2. Ideally, SNR is used to calculate CQI values in the two available antennas, although the actual mapping is open to device manufacturers. For PUCCH Format 3, one n3PUCCH-AN value out of 4 ( n3PUCCH-AN-List-r10 ) should be selected based on the TPC field in the DCI format of the corresponding PDCCH on the SCell. Oct 19, 2021 · RSRP levels for usable signal typically range from about -75 dBm close in to an LTE cell site to -120 dBm at the edge of LTE coverage. CQI employs serial experimentation, also called the scientific method. It basically includes CQI, PMI,RI components. The UE reports their feedback to the eNodeB periodically on PUCCH or no-periodi CQI stands for Channel Quality Indicator and is a value reported by UEs to indicate the quality of the communication channel. Note: It is noted that O1 is always 4 and O2 has only two possibilities : 1 or 4. As in MCS table, CQI table is also redefined for 256 QAM. A single wideband CQI index, followed by a subband differential CQI offset level for each subband. For the purpose of periodic reporting the PUCCH is utilized, a periodic reports are sent on the PUSCH. Apr 3, 2023 · Continuous Quality Improvement (CQI) is a progressive incremental improvement of processes, safety, and patient care. This example shows how to compute downlink channel state information (CSI) parameters such as the channel quality indicator (CQI), precoding matrix indicator (PMI), and rank indicator (RI), for multiple input multiple output (MIMO) scenarios, as defined in TS 38. LTE CQI vs PMI vs RI-Difference between LTE CQI,PMI,RI. g, QPSK, 16 QAM, 64 QAM, 256 QAM). Oct 26, 2021 · How can I get real-world CQI-to-MCS and SNR-to-CQI tables? I am particularly looking for 5G-NR or LTE-A related tables. starts at the eNodeB, This site is for everything on 4G/LTE. 1 Resource Allocation Type: 3. Next Calculate the total number of REs for PUSCH as follows. 1 Resource Blocks and Resource Allocation: LTE divides the available spectrum into resource blocks, and the allocation of these blocks influences TBS. 3-2) Dec 15, 2023 · CQI values typically range from 1 to 15 in LTE. #CoverageParameter #DTparameter #RfOptimizationComment me here for doubts or send me an ema Sep 1, 2012 · In Release 8, LTE was standardized by 3GPP as the successor of the Universal Mobile Telecommunication System (UMTS). g, RRC Connection Reconfiguration, RRC Connection Setup). you will using only 1 carrier, so try to remove overlapping ( reduce the number of server within 3, 5 & 10 Db). 36. Process improvement may be "gradual" or "breakthrough" in nature. The LTE CQI stands for Channel Quality Information. MCS parameter is assigned based on the CQI value. Type 1 : Live Network Behavior Test. CQI Measurement in Livenetwork. This demonstrates the degree of modulation and coding the UE could work. This will affect any user with the LTE module, please read ahead to understand the changes and how to revert if needed. Usually, the CQI value of below 7 is considered bad and CQI value of around 10 is considered fair. . This paper gives an Jan 25, 2019 · In the LTE setup, CQI is described on the basis of channel coding rate and MCS. 213 Rel 8 - 7. Here’s how it works: The receiver (such as a mobile device or base station) periodically measures the received signal quality. The requirement for each of these components depend on transmission mode. Also see how to calculate LTE throughput using MCS and LTE throughput calculator. In LTE, CQI values range from 1-15 and map to modulation schemes and Sep 1, 2011 · An overview of the so-called link performance model used in TD-LTE (Time Division-Long Term Evolution) system level simulations to determine the link CQI at reduced complexity of UE (User Equipment) shows that EESM and MIESM algorithms bring a similar throughput performance comparing to the ideal C QI choice, but mapping function of EESm method is simpler than MiesM method. PMI and RI will come in picture only in the case of MIMO. In contrast to studies in the literature, this study conducted LTE-A network eld measurements at 80 locations in the Aug 3, 2020 · In this paper, a CQI prediction scheme using Feed Forward-Neural Network (FF-NN) algorithm for MU-MIMO-LTE Advanced systems is proposed. Code Rate . Depending on the required UE data rate, the base station decides on the number of resource blocks allocated to a particular user, and what kind of frequency blocks to allocate to users depends on the CQI. vqs kumcc afbjr xvujt dplbqb vwoqm qlzfj smdqvk nzsf ubsng