Throughput in lte

Throughput in lte. Throughput Calculation - TDD . Another difference is about TBS each subframe as marked in blue. Clearly, this makes difficult to develop analytical tools to accurately Jun 7, 2017 · CA is supported by both formats of 4G LTE, namely the FDD and TDD variants. ii) Low throughput does not necessarily mean low CQI. UE Category for PHY layer throughput . LTE throughput depends on the following parameters: Bandwidth; Channel quality Feb 5, 2024 · This article "LTE Throughput Optimization: Part 2 - Spectral Efficiency" explains data part (PDSCH) of the LTE subframe and discusses various ways to improve its efficiency. Feb 12, 2015 · This tutorial explains how LTE downlink maximum throughput is determined. The selected LTE parameters, which are highly Throughput vs. 4G LTE carrier aggregation basics. Apr 1, 2023 · The throughput prediction results of each model are shown in Figs. This article explains the impact of control overhead especially PDCCH and the procedures that can be used to optimize it. What is Throughput? • The term throughput refers to ratio of data transmitted in unit of time. There is not one factor, but a number LTE Throughput Calculator . Network latency is an expression of how much time it takes for a data packet to get from one designated point to another. Even with PC to PC direct connect, it is not easy to achieve this level of throughput. You can select any RMC and change any settings, though care must be taken not to define an invalid configuration. 95G and has been marketed as 4G LTE Nokia Solutions and Networks and Sprint announced that they had demonstrated throughput speeds of 2. Throughput Optimization. Overview - FDD : Frame Structure Type 1. Jul 14, 2015 · LTE is rapidly gaining momentum for building future 4G cellular systems, and real operational networks are under deployment worldwide. But as LTE come out and become more widespread, we foresee more real time application based on data traffic which would belong to profile (C), e. UE Category is the set of information (parameters) that defines the maximum throughput for a UE. The highest level view from 36. network latency. Use this calculator to calculate LTE throughput, and carrier aggregation Throughput. As LTE evolves, the length of UE category list gets longer and longer, and the interpretation of the category gets more complicated, you will need to go through many tables listed below to figure out the exact throughput capability of a UE. Following plot is from the data captured by a drive test tool Azenqos Drive Test tool (AZQ Android). wustl. Another notice is calculated throughput includes LTE headers (i. The models are initially validated on the LTE network and then applied to a non-standalone 5G network. The quality of DL-Throughput is a critical element for video streaming and gaming. If the SNR is low, the AWGN channel results in the best BER performance. Mobile wireless technologies have undergone four distinct generations; from uncomplicated voice calls in the first generation to high-speed, low latency and video streaming in the fourth generation. Although LTE is commonly referred to as 4G LTE, LTE is technically slower than 4G but still faster than normal 3G. 3 TDD HARQ-ACK feedback procedures (I revised the statement a little bit to make it simple and hopefully clearer) Feb 28, 2015 · A major problem militating against the performance of wireless cellular networks is interference. Supports TDD, FDD and SDL, Carrier aggregation and MIMO Jul 12, 2022 · Long-Term Evolution (LTE) cellular networks have transformed the mobile business, as users increasingly require various network services such as video streaming, online gaming, and video conferencing. Transmission Mode . Specifically, the following features are included: Throughput and Jitter for each UE-Application and Channel Quality Indicator (CQI) for each UE. You may know that MCS (Modulation Coding Scheme) is related to Modulation Order (Modulation Depth, e. Optimization. What is Ideal/Expected throughput ? One of the most common questions that I have been getting for the past 10 years or so (probably from early HSDPA period and all the way up to now) was 'I have a UE with such and such category, what kind of throughput I need to get from this device ?' (Usually they carry the document like 36. g, 100 Mbps and over) is pretty tough task not only for IP stack, but also the IP application software and CPU utilization. initial throughput is multiplied by 2 or 4 either MIMO 2x2 or MIMO 4x4 selected, respectively. Cell ID Calculator . Oct 29, 2019 · Data rate increased later with carrier aggregation and higher capability devices (Cat 6 / 9 / 12), and peak throughput of 450 Mbps or 600 Mbps is now available commercially in urban area. Asynchronous HARQ – used in LTE Downlink transmission. In reality throughput will be a bit lower due to increased number of pilot signals. The target figures for data throughput in the downlink is 1 Gbps for 4G LTE Advanced. For this reason, LTE may also be called 3. In this theory, LTE would have less problems since LTE can have very large data pipe that can carry a whole C-Plane/U-Plane packet with single transmission. THROUGHPUT (SPEED in MBPS) CALCULATION IN 4G LTEIn this video we have shown 4 methods by which throughput can be calculated in LTE and how various factors af Oct 22, 2017 · LTE Throughput Optimization is one of the most frequently discussed topic. This type of HARQ There has been a series of posts for LTE Throughput computation in both FDD and TDD. Example 1: SNR (SINR) vs Throughput in a LTE Live Network . Finally, we suggest scaling the proposed model into the future standalone 5G network. Critical performance metrics of the cellular system, such as the cell throughput, capacity, and According to this table, you would notice that a regular IP packet (smaller than 1500 Bytes) can be easily packed into a single PDCP SDU regardless of LTE standards. The following calculations are made for user data bit rates on IP layer (including IP headers and LTE overhead, i. Let’s assume, the UE is in good radio condition and its capability is available for 150 Mbps for downlink and 50 Mbps for uplink. 22 present the BER and throughput performances of the LTE physical layer respectively, while AWGN channel was simulated to associate a fixed user, and PedB and Flat Rayleigh channels associate users with 10 km/h and 100 km/h of velocity respectively. On the other hand, we need to determine how many ph LTE throughput calculator EXAMPLE: Input : MCS = 10, PRBs = 20, Number of MIMO Antennas = 2 Outputs : LTE throughput = 6. ) and will be 50% over the required capacity for backhaul in which case it’s investment in Feb 5, 2017 · LTE THROUGPUT TROUBLE SHOOTING In this write up we will learn briefly general troubleshooting guidelines for downlink throughput in LTE networks with MIMO 2x2 The general troubleshooting strategy LTE Throughput Calculator . LTE throughput calculator EXAMPLE: Input : MCS = 10, PRBs = 20, Number of MIMO Antennas = 2 Outputs : LTE throughput = 6. The subsequent development of LTE-Advanced (LTE-A) yielded peak throughput on the order of 300 Mbps. For many people working in LTE, one of the most important question would be what is the maximum throughput for a network, device or network operator. HERE, HERE, HERE and HERE. Jul 26, 2021 · Request PDF | Throughput Prediction using Machine Learning in LTE and 5G Networks | The emergence of novel cellular network technologies, within 5G, are envisioned as key enablers of a new set of Jul 15, 2024 · This dataset includes real-world time-series statistics from network traffic on real commercial LTE networks in Greece. For example, if you are testing a Category 3 Max throughput case (System BW 20 Mhz, Number of RB = 100), the idea max throughput is around 100 Mbps. The spectral efficiency is simply the number of bits transmitted over a frequency bandwidth in a specific time and is measured in bits/s/Hz. Measurement GAP for LTE and NR . 39 for the uplink. 64 Mbps, the minimum throughput is 1. Simply select network type and type in the LCID/CID. In normal DL or UL subframe, TBS/subframe can be calculated in the same way as in FDD. A proprietary dataset is utilized to train and test the model. Following equation/formula is used for this LTE throughput calculator. Almost whole of this site is about LTE. 5G is significantly quicker than LTE. Dec 29, 2022 · Throughput is a basic KPI on any LTE network. . Followings are some of the items that is worth noticing from 3GPP 36. to LTE Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse. To achieve high throughput performance, in addition to an advanced physical layer design LTE exploits a combination of sophisticated mechanisms at the radio resource management layer. Thus, the ESPE LTE network was deployed and can be used as a testbed and a platform for teaching the LTE standard. So, it is very likely that you would see low CQI when you see throughput drop in livenetwork test. As LTE uses different channel bandwidths both for FDD and TDD. e. 4G LTE: 4G LTE Throughput calculator, 4G LTE Link budget calculator, 4G LTE Cell ID (ECI) Calculator, 4G LTE EARFCN calculator, 4G LTE RS RE Power calculator, 4G LTE Users (CCE) calculator, Spectral Efficiency 4G LTE calculator, 4G LTE Timing Advance Distance Calculator, EPRE (Energy Per Resource Element) Calculator, 4G Neighbor planning Feb 1, 2017 · Physical layer data throughput can be calculated accurately for different scenarios. 306 with the tables showing LTE is also called 3. The purpose of this dataset is to capture the QoS/QoE of three COTS UEs interacting with three edge applications. 4, 5, and 6. To achieve high throughput performance, in addition to an data throughput has been the key metric recently [9 –11]. So, I have decided to write about the various aspects which can help in LTE throughput optimization. Throughput Calculation in LTE. slow download, blocking, etc. Ericsson defined throughput (UL or DL) is "the speed at which packets are being transferred by the time the first packet has been scheduled in the air interface". Fundamental logic of the GAP setting is same as in LTE and Legacy case as explained above. TDD throughput calculation is very similar to FDD case as you see below. Jan 11, 2024 · Although similar to DL throughput, UL throughput has special considerations to take when analyzing performance issues on a network. In case of Jumbo frame, it wouldn't be packed into a single SDU in case of LTE-NB if the IP packet size goes over 1600 bytes. Most modern smartphones, whether 5G or 4G, happen to support LTE. But still there would be some possibility of RLC layer issues especially related to fragmentation and timing issues due to following reasons : 4G LTE Network Throughput Modelling and Prediction Abstract: The past decade has witnessed a staggering evolution in cellular networks. When mobile chip manufacturer releases a new product, it should to indicate its Ue LTE Categories It is help us to get information about Ue Peak LTE Throughput DL (UL), number of MIMO DL layers, support for 64QAM in UL etc… Common Ue Categories LTE (common + NB-IoT) defines a combined uplink and downlink capability. However, typically in the M2M domain simpler LTE modules such as Cat 4 are used more often, providing peak throughput of downlink 150 Mbps and uplink 50 Mbps. Today is the start of uplink throughput computation. In order to determine physical layer performance, we need to calculate the total physical resources available for different bandwidths of downlink transmission. (The reason is same as above) iii) With low CQI, it is for sure that you cannot achieve the maximum throughput. This is a simple and straightforward formula for data rate calculation. MCS and Modulation Order . 48 Mbps. While LTE speeds reach 100 Mbps, true 4G offers speeds up to 1,000 Mbps. This plot is automatically generated by AZQ Reporting tool and I just did some cosmetic touch on the chart. For TDD Case: You can find them. The 5G throughput in the downlink refers to 5G-NB to UE data rate while in the uplink it refers to UE to 5G-NB data rate. Original code from Github. Jul 26, 2021 · Second, we develop machine learning models using lower-layer metrics, describing the radio environment, to predict the available throughput. It is recommended to read OFDMA/SC-FDMA sections to clearly understand throughput calculation in LTE. Asynchronous HARQ, on the other hand, is a technique in which the UE sends data to the base station, and the base station sends an ACK or NACK message to the UE in a later subframe. In some environments, latency is measured by sending a packet that is returned to the sender -- the round-trip time is considered the latency. This post is to address common issues that affects downlink throughput and also to dig into possible solutions. g, you can monitor the CPU utilization using Windows Task Manager) LTE throughput calculator Introduction The post presents the simplest way how to calculate LTE throughput. Example 1 > Throughput, CQI, BLER while driving on a highway Jan 2, 2024 · We first performed an extensive LTE data collection in proposed locations and determined the LTE lower layer parameters correlated with UL throughput. 83 for the downlink and 0. PDCP, RLC and MAC). As LTE evolves, we got increasing number of measurement gap definition and with the introduction of NR, this list got exploded as below. This is the real measurement showing the correlation between SINR and Throughput. The physical uplink shared Channel (PUSCH) is used to transfer application data. The interactions Feb 3, 2022 · A 4G LTE network was implemented by using SDR and open-source LTE software. It takes advantage of radio waves which deliver wider coverage when compared to microwaves in 3G and WiMAX. Jun 27, 2011 · So, for example, if we think LTE cell will provide 100 Mbps of throughput while in reality can only do 50 Mbps, the operator will be short by 50% of capacity in the access network resulting in poor user experience (e. In LTE, usually they use multiple Antenna for downlink (at least from Category 3 UE and higher), meaning that eNode (Network) has use multiple Tx Antenna and UE use multiple Rx antenna. 22 Mbps LTE throughput calculator formula. Feature selection is May 20, 2023 · What is LTE Network? Let’s understand the LTE network with the following points: LTE is short for Long Term Evolution and is a standard for 4G devices. 1. Is one of the three major KPI, along with and latency and packet loss when we measured what it’s called “the integrity” network. 6 Open the LTE throughput analyzer app and run a user-defined measurement channel. Jul 11, 2022 · Differences Between LTE and 5G. edu Optimize overall throughput LTE is rapidly gaining momentum for building future 4G cellular systems, and real operational networks are under deployment worldwide. 1. Use this page calculate things such as eNB ID/RNC-ID/BSIC or hex values of IDs. Synchronous HARQ – used in LTE Uplink transmission. The throughput at the last step in the process can be defined as physical layer throughput. DL and UL Throughput calculations for LTE TDD TDD system throughput calculations are somewhat complex as compared to FDD system as same spectrum is used by uplink, downlink and for the guard period (Used for transition from downlink to uplink). 21, Fig. 211 for FDD LTE is as follows. real user bit rate will be a bit lower). • The unit of throughput is bits per second or bps. 95G. LTE throughput References LTE level throughput (e. The results in scenario 1 show that the normalized throughput of the implemented LTE ESPE network is 0. In 2008, the International Telecommunications Union (ITU) recommended that data throughput on LTE networks needs to be as high as 1 Gb/s in ideal low-mobility circumstances. Speed. Until recently (as of Apr 2013), most of low throughput application would belong to profile (D), like browsing, email etc. HI all,Please go through video of Throughput Calculation in LTE (FDD & TDD) # How to Calculate LTE Data Rate. Calculate the maxium theoretical throughput of a specified LTE Configuration. Mar 30, 2023 · HARQ for LTE Uplink and Downlink. Define a custom measurement channel. So, in stead of directly jumping into max throughput test, increase the throughput step-by-step and check CPU utilization (e. g, Voice over LTE, on-line Gaming etc. 08 Mbps, and the average throughput is 42. Hi All,There are lot of new member joined so i a Apr 7, 2013 · 8. 22 Mbps LTE throughput calculation formula or equation. In the test set of BBR traced log data, the maximum throughput is 86. It covers the same for 5G downlink throughput and 5G uplink throughput. 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 Jul 1, 2011 · In this paper, we investigate resource block (RB) assignment and modulation-and-coding scheme (MCS) selection to maximize downlink throughput of long-term evolution (LTE) systems, where all RB's This parameter is taken with some inaccuracy, i. Otherwise, below are the quick steps you can take note of and start investigating when it comes to improving LTE Throughput. The equation or formula mentioned above is used for LTE throughput calculation. Jan 2, 2024 · One obvious ML use case is modeling DL-Throughput since measurement data throughput has been the key metric recently [9,10,11]. This ensures that both FDD LTE and TDD LTE are able to meet the high data throughput requirements placed upon them. The data rate at this step is determined only by number of REs allocated for the data and the modulation method (QPSK, QAM, 16 QAM etc). This site is for everything on 4G/LTE. In LTE, end user quality of service is impacted by the cumulative effect of various nodes and interfaces. The maximum data rate depends on channel bandwidth. Recap the procedure, it can be summarized as follows. This work models and predicts the DL-Throughput by utilizing LTE data measurements to train supervised ML models. The throughput for a device working in a live network would vary at every moment as you can see this drive test. 213 10. Jan 1, 2019 · Fig. The key difference is 'number of subframes /sec' parts as marked in red. g, QPSK, 16 QAM, 64 QAM, 256 QAM). It only shows the structure of one frame in time domain. Also Refer LTE throughput basics>> and LTE code rate calculator>> to understand the concept to derive TBS from This throughput often get configured with the throughput calculated at the last step of this process. g. rttf makim ehgrz fkslfqj cpyvp iibd rpqr jyoibc jmej faelk