Lowest throughput lte. This technology is for Internet of Things devices that need to connect directly to a 4G mobile network. But SINR is vendor specific. Jan 11, 2024 · Although similar to DL throughput, UL throughput has special considerations to take when analyzing performance issues on a network. #LTEOPTIMIZATION #LTE # LTESOFFPARAMETERSPoor CQI Reason in 4G & Optimization?https: Dec 29, 2022 · 256-QAM Modulation Scheme, Carrier Aggregation, CQI, Data Radio Bearer, Diego Goncalves Kovadloff, how to improve throughput in lte, Improving Throughput, Low Throughput, PDCCH, RRC Connected users, Scheduler, Throughput LTE level throughput (e. The 3GPP defined how the UE should calculate RSSI, RSRP and RSRQ. The equation or formula mentioned above is used for LTE throughput calculation. 08 MHz. 22 Mbps LTE throughput calculation formula or equation. The main LTE bands are in bold print. Introduction. Prerequisites: Genex Jul 2, 2010 · This paper presents a low-complexity, high-throughput, and configurable multiple-input multiple-output (MIMO) signal detector design solution targeting the emerging Long-Term-Evolution-Advanced Dec 10, 2010 · Long Term Evolution (LTE) imposes the constraint | Find, read and cite all the research you need on ResearchGate Low complexity approximate maximum throughput scheduling for LTE. Original code from Github. a typical value of 10-2 in LTE. 5 % after fiber transmission. note: All calculations below is for 20MHz, for less bandwidth you just divide. The main motto behind this research was the requirements of high bandwidth and very low latency. The SINR> 10dB and UL throughput< 0. Is one of the three major KPI, along with and latency and packet loss when we measured what it’s called “the integrity” network. If there’s both a high latency connection and low throughput then your available bandwidth is being put to poor use. Two cyclic Feb 1, 2017 · Physical layer data throughput can be calculated accurately for different scenarios. There are 98 records. It is a subset of the LTE cellular technology that is optimized for low data rate devices running from small batteries. Poor Signal Strength: Weak signal strength) can significantly impact throughput. A deeply pipelined architecture for a soft-output MIMO detector is implemented for a 4×4 64-QAM MIMO system realizing a Feb 1, 2017 · With this technology, it achieves peak spectral efficiency of 30 bit/s/Hz for downlink and 15 bit/sec/Hz for uplink. 95G. Cell ID Calculator . Feb 5, 2024 · Let’s understand the various factors impacting the spectral efficiency and ways to perform LTE throughput optimization. CEUs also have very low DL throughput during peak hours in the three bands (from 0. 4. The LTE system supports a set of six channel bandwidths as given in Table 8. Dec 29, 2022 · Throughput is a basic KPI on any LTE network. 4G LTE covers the entire range of download speeds from 3G’s 10 th of Mbps to 4G’s 100 th of Mbps. It outlines steps to analyze downlink and uplink throughput from a performance counter perspective. Feb 12, 2024 · Hence, "4G LTE. There are 574 records left. Feb 26, 2021 · Evaluations over LTE networks for static and mobile environments show ExLL achieving better throughput and latency than popular CCAs like CUBIC and BBR (Bottleneck Bandwidth and minimum RTT). For the detailed data path for LTE, you can refer to another pages of this site. LTE-M operates on the existing LTE infrastructure, but NB-IoT requires the more complex deployment of a new core network. 1. NOTE: Refer to 3GPP 36. December Dec 22, 2021 · 1. 4, Analysis of the data . The customer was notified and replaced the 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. Index Terms—LTE, OFDMA, multiuser scheduling, adaptive resource allocation, linear programming I. e. In order to determine physical layer performance, we need to calculate the total physical resources available for different bandwidths of downlink transmission. PREREQUISTE : General Guidelines Before diving into Throughput Investigation:. :) FDD Downlink Throughput: We need to calculate the total physical The subsequent development of LTE-Advanced (LTE-A) yielded peak throughput on the order of 300 Mbps. Oct 21, 2019 · Mode 1 — Allocate RB resource from Low frequency RB to High frequency RB. LTE throughput References The document provides an analysis flow for investigating and improving low throughput in LTE networks. LTE-M differs from standard LTE in a few critical ways. Mar 28, 2023 · Both forms of connectivity operate on licensed spectrum and have low-power consumption and low-bandwidth needs. How to troubleshoot LTE throughput problem for Huawei engineers . 5 Mbps during peak, and that’s not very bad for medium traffic volume in this cluster. 2 and 2. LTE-M and NB-IoT are two new protocols for low bandwidth cellular communication. Then a question popped up in my mind. When RSRP < -120dB, the mean throughput is 0. Partial deployments varies from country to country and the details are available at List of LTE networks. On the other hand (High throughput depends not only on CQI, but also on transport block size (Number of RB and MCS. Here are some common reasons for low throughput in network: 1. For 1. Jul 12, 2024 · It’s open-source and low-cost making it ideal for low-power deployments that are on the smaller scale. 3 GHz WCS band 30, 3. Although, these are both low bandwidth protocols there are important differe LTE throughput calculator Introduction The post presents the simplest way how to calculate LTE throughput. In LTE, end user quality of service is impacted by the cumulative effect of various nodes and interfaces. The following calculations are made for user data bit rates on IP layer (including IP headers and LTE overhead, i. Aug 4, 2023 · Below are explanations of the LTE signal strength values (and also RSSI in relation to LTE): SINR/SNR – The signal-to-noise ratio of the given signal. The issue was caused by high packet retransmission rates between the eNodeB and the operator's core network, due to an old Ethernet card on the uplink microwave with a small buffer. The analysis flow includes checking KPIs, parameters, and features related to coverage Low-band may provide excellent coverage, but the network performance may only be a small step up from 4G, as spectrum bandwidths are smaller. Dec 1, 2023 · Since Verizon 5G mmwave was not received during these tests, the DL throughput is solely via aggregation of LTE and low-band NR. The proposed detector attains low computational complexity using three improvement ideas: relevant discarded paths selection, last stage on-demand expansion, and relaxed LLR computation. (The reason is same as above) iii) With low CQI, it is for sure that you cannot achieve the maximum throughput. Dec 28, 2023 · The mid-range bandwidth is category LTE-1 . Let's get into further details for some of the important parameters. g, Voice over LTE, on-line Gaming etc. We note that the transmission bandwidth configuration BW config is 90% of the channel bandwidth BW channel for 3–20 MHz. 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 #LTELowThroughput #4GLowThroughput#CQI #4GCQISubscribe Like & Share. With this objective in mind, the physical layer of LTE is designed to support bandwidths in increments of 180 kHz starting from a minimum bandwidth of 1. In order to support channel sensitive scheduling and to achieve low packet transmission latency, the scheduling and transmission interval is defined as a 1 ms subframe. Jun 2, 2021 · As for T-Mobile's nationwide 5G network, the low-band spectrum means speeds reach between 100 to 200 Mbps at their peak, but in most cases are modest improvements over what you'd expect from 4G This paper presents a VLSI architecture of a novel soft-output K-Best MIMO detector. 4, 3, 5, 10, 15, or 20 MHz, giving us a maximum bandwidth of 100 MHz with five combined. 211-Table 6. The mean SINR is 2. The high bandwidth applications typically use networks called LTE Advanced (LTE-A) or LTE Advanced Pro. Sep 1, 2020 · However, min DL user throughput in L900 is between 1. E-UTRA sampling rates for the background information for this table. With limited technical support, concerns about security and reliability, and trouble with performing over-the-air updates due to low bandwidth, Intoto decided to go with LTE-M as they scale their environmental metering (live river data Sep 27, 2015 · We experimentally demonstrate the transmission of 48 20-MHz LTE signals with a CPRI-equivalent data rate of 59 Gb/s, achieving a low round-trip digital-signal-processing latency of <2 μs and a low mean error-vector magnitude of ∼2. At this point, the LTE International Standard is loosely defined and frequently updated, making a true LTE standard hard to nail down. One thing you can count on in the coming years is that CSPs will continue to fine-tune their 5G networks by expanding existing coverage, making additional spectrum purchases, and taking advantage of new 4G LTE Network Throughput Modelling and Prediction Abstract: The past decade has witnessed a staggering evolution in cellular networks. If you look at the graph on the right, you can see that as the RSRP reduces, the throughput also reduces. This can occur due to distance from the cell tower or obstacles like 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. LTE throughput calculator EXAMPLE: Input : MCS = 10, PRBs = 20, Number of MIMO Antennas = 2 Outputs : LTE throughput = 6. 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. Now that companies have attained 4G speeds, they don’t want to Jul 19, 2020 · The amount of bits per RB allocated to UEs with low SINR, which is typical of cell edge UEs, is smaller than for UEs with high SINR. Sep 15, 2022 · The first issue is simple. This document summarizes a case study of an LTE low throughput issue. Not yet deployed are not available (N/A). Using throughput to measure network speed is good for troubleshooting because it can root out the exact cause of a slow network and alert administrators to problems, specifically in regard to packet loss. So if we use this in LTE, we may be able to use GSM/GPRS spectrum for NB-LTE. There is not one factor, but a number. Nobody would think this is any big problem these days and they would classfy this as a very low throughput case. RSRP – The average power received from a single Reference signal, and Its typical range is around -44dbm (good) to -140dbm(bad). g, 100 Mbps and over) is pretty tough task not only for IP stack, but also the IP application software and CPU utilization. 7 GHz C band band 77. While LTE speeds reach 100 Mbps, true 4G offers speeds up to 1,000 Mbps. Long Term Evolution (LTE) imposes the constraint of using the same code rate, modulation order and transmit power for all resources a User Equipment (UE) is scheduled onto. INTRODUCTION Orthogonal Frequency Division Multiple Access has been adopted in emerging broadband wireless access networks such as 3GPP UMTS/LTE [1] and IEEE 802. NB-IoT was 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 The LTE services were launched by major North American carriers as well, with the Samsung SCH-r900 being the world's first LTE Mobile phone starting on September 21, 2010, [11] [12] and Samsung Galaxy Indulge being the world's first LTE smartphone starting on February 10, 2011, [13] [14] both offered by MetroPCS, and the HTC ThunderBolt offered This was around 6 or 7 years ago (around 2010/2011). OK, so far so good. This, in addition to the lack of channel knowledge, prohibits theoretical concepts such as capacity maximization to be applied LTE Throughput Calculator . Therefore, scheduling disciplines that do not consider channel conditions to allocate resources may not to be the most efficient for improving cell edge throughput in LTE-A and 5G networks. 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. Throughput as a function of BLER May 4, 2022 · In this blog post, we evaluate 4G LTE vs. Most recently, in three decades, rapid growth was marked in the field of wireless communication concerning the transition of 1G to 4G [1,2]. RSRP / LTE carrier RSSI (in Watts) or RSRQ = 10 log (N) + RSRP – LTE carrier RSSI (in dB) Where N is the number of resource block over the measured bandwidth (see table below) As it happened with RSRP this quantity is also used by the UE to rank cells for cell reselection and handover. Designed for a vast number of feature-rich IoT applications requiring medium data speeds, lower power consumption, full mobility, and voice support, LTE Cat 1 is the lowest cost, globally available LTE category that still delivers the speeds necessary to support video streaming with up to 10 Mbit/s downlink and 5 Mbit/s uplink. If coverage (RSRP) is bad, the throughput will be bad. Jun 28, 2024 · New low-band 5G networks include T-Mobile’s 600 MHz band 71. 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. Throughput Optimization. 16x (WiMAX) [2] 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. So in this case, very high performance IP data server is the most important factor for throughput test. However, when LTE first came out this was pushing the limit not only on DUT(Cellular protocol) but also many other parts a well. 5G, including speed, bandwidth, latency, and other differences between LTE and 5G, to help organizations find the right technology for their needs. Also, even the smallest bandwidth of the current LTE (1. " Thus, when someone says 4G LTE, they are actually talking about something weaker than true 4G, but better than simple 3G. The fairness achieved between competing ExLL flows is also evaluated in [111] . So, with Drive Test data, if there is low throughput and the RSRP is also low then that would typically indicate a bad coverage scenario. For this reason, LTE may also be called 3. Feb 18, 2024 · Low throughput in LTE networks can be attributed to various factors, both within the network and at the user equipment (UE) level. – Signal To Noise & Interference Ratio: The most basic and common factor that controls the spectral efficiency and throughput is the SINR (Signal to Noise and Interference Ratio). of contributing factors which affect the end user throughput. New mid-band 5G networks include 2. In this paper we address the challenge of multiuser scheduling in the downlink of 3GPP UMTS/LTE. 08 Mbps. Almost whole of this site is about LTE. There are 116 records. Until recently (as of Apr 2013), most of low throughput application would belong to profile (D), like browsing, email etc. 4 Mhz) might be too much for such a super low throughput application like IoT. LTE-M is an abbreviation for LTE (Long Term Evolution) Cat-M1. 72, the record is as below: When -115dB <=RSRP <= -120dB, the mean throughput is 0. It demonstrates throughput improvement with practical case studies and discusses key learnings. 83Mbps, there are 139 records. . Simply select network type and type in the LCID/CID. Use this page calculate things such as eNB ID/RNC-ID/BSIC or hex values of IDs. 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. In the second cluster, max numbers of UEs are recorded at 7 PM as in Table 5. May 15, 2024 · LTE Cat 1 from strength to strength and still going strong. The sooner you know about it the sooner you can take action and start troubleshooting. 12-1: OFDM parameters and CPRI Specification 6. Amongst the target use models of 5G, ultra-reliable low latency (URLLC) applications that are highly sensitive to latency must target a BLER between 10-9 to 10-5 for latency <1 msec vs. However, LTE-M and NB-IoT also have distinct differences in their deployment and capabilities. May 23, 2024 · Packets lost in transit lead to poor or slow network performance, and low throughput indicates problems like packet loss. g, you can monitor the CPU utilization using Windows Task Manager) Oct 22, 2017 · Thank you for sharing this insightful article on LTE throughput optimization and the role of PDCCH enhancements in achieving it. LTE throughput depends on the following parameters: Bandwidth; Channel quality Jun 27, 2022 · Each LTE band has a bandwidth of either 1. Graphs and tests showed high quality wireless signals but evidence of transmission problems. It is same as basic channel bandwidth of GSM. 4G comes in different flavours for connected objects. This post is to address common issues that affects downlink throughput and also to dig into possible solutions. In other words, single 20MHz bandwidth to achieve up to 600Mbps downlink speed. 4 MHz channel bandwidth, the transmission bandwidth is only 77% of the channel bandwidth. 1 Mbps). With no mmWave reception, T-Mobile NR DL throughput is superior to Verizon’s, even though the Verizon BS is very close to the building. Jan 4, 2024 · Monitoring your latency and throughput is the only way to make sure that your network is performing to a high standard. 122 Mbps. 9 to 0. Even when CQI is high, eNB may assign small resources due to various other factors) ii) Low throughput does not necessarily mean low CQI. real user bit rate will be a bit lower). Use this calculator to calculate LTE throughput, and carrier aggregation Throughput. The suitable 4G LTE module can be selected according to the market. The following table shows the standardized LTE bands and their regional use. 5G provides a high data rate, improved quality of service (QoS), low-latency, high coverage, high reliability, and economically affordable schedulers in terms of achieved throughput and fairness. Although this will vary depending on the bandwidth available in Which means that in LTE you will have even bigger TBS than HSPA+ Dual Carrier. Although LTE is commonly referred to as 4G LTE, LTE is technically slower than 4G but still faster than normal 3G. 5 GHz CBRS band 48, and 3. Here are some examples of IoT devices and their specific bandwidth needs. Nov 19, 2021 · While carrier marketing sometimes suggests that 4G LTE is an enhanced version of 4G, 4G LTE actually refers to devices and networks that are evolving from the slower 3G standard to full 4G speed and throughput capability. Jul 12, 2021 · RSRP, SINR, RSRQ and RSSI are indicators of the signal strength and quality of the LTE channel. So, in stead of directly jumping into max throughput test, increase the throughput step-by-step and check CPU utilization (e. Jul 12, 2021 · RSRQ = N . 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". Even higher 24–48 GHz mmWave bands—will provide cellular connectivity to devices with very high bandwidth requirements, like self-driving automobiles.