How to improve ul throughput in lte
How to improve ul throughput in lte. It can be 1. So, in stead of directly jumping into max throughput test, increase the throughput step-by-step and check CPU utilization (e. Oct 21, 2019 · This quickens the response to UE services, but increase PDCCH overheads and prolongs the UL data transmission duration. com Feb 20, 2020 · In this video, we explain the KPIs and performance criteria used to determine coverage issues in UL and DL in LTE. Jun 11, 2016 · In LTE , Power control takes place both in Downlink and Uplink. The physical uplink shared Channel (PUSCH) is used to transfer application data. To get reasonable good throughput a CQI better than 10 is needed. At the physical layer in 5G and LTE, typical BLER threshold defined is to be ≤10%. Due to the high noise interference, it could likely lead to frequent drop calls, call setup failure and poor voice quality. Below you can find a simple LTE throughput calculator. 83Mbps, there are 139 records. It is a critical metric that directly impacts the user experience and the efficiency of the wireless network. docx), PDF File (. doc / . Detection of coverage issues in LTE Mar 3, 2024 · There are many ways to optimize LTE throughput and I will try to cover all of them. 122 Mbps. 4, Analysis of the data . Tag: how to improve throughput in lte. Jan 23, 2020 · On the other hand, too high RSSI is equally undesirable. Some TM is designed mainly to increase throughput, some are to increase communication reliability and some are to handle multiple users simultaneously etc. Dec 29, 2022 · Overall the radio conditions can be measured through the CQI (Channel Quality Indicator). It also depends on subscriber and connection (bearer in terms of LTE) priorities. This can also be fixed by using a cell signal booster, also called a cell signal amplifier. Modification of Schedule Strategy For non-GBR service, there are two schedule strategies: basic schedule and differentiated schedule, this can be set by parameter CaSchStrategy. (The reason is same as above) iii) With low CQI, it is for sure that you cannot achieve the maximum throughput. 4, 3, 5, 10, 15 or 20 MHz. Feb 27, 2020 · An overview of capacity and data throughput optimisation in LTE. So in this case, very high performance IP data server is the most important factor for throughput test. 22 Mbps LTE throughput calculation formula or equation. Sep 12, 2020 · High PRB Utilization && Low User Number => that means serving UEs enjoying almost very satisfied throughput regarding to LTE 4G Signal they can see in their handsets. In this paper, a joint downlink (DL) and UL optimization to maximize the sum of UL throughput of devices for a given sum of DL throughput in a wireless powered communication network (WPCN) with two devices is considered. g, 100 Mbps and over) is pretty tough task not only for IP stack, but also the IP application software and CPU utilization. g, QPSK, 16 QAM, 64 QAM, 256 QAM). 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. 3- Capacity Exhaustion: 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 Jan 2, 2024 · Throughput in LTE (Long-Term Evolution) refers to the actual data transfer rate or the amount of data transmitted over the network in a given time period. Simply select network type and type in the LCID/CID. It covers the same for 5G downlink throughput and 5G uplink throughput. 72, the record is as below: When -115dB <=RSRP <= -120dB, the mean throughput is 0. So, it is very likely that you would see low CQI when you see throughput drop in livenetwork test. LTE throughput calculator EXAMPLE: Input : MCS = 10, PRBs = 20, Number of MIMO Antennas = 2 Outputs : LTE throughput = 6. Sep 16, 2019 · In recent years, the network operators have paid more attention to user experience. In good radio condition 64QAM modulation will be used for downlink. Resource Block Allocation Bandwidth (MHz) Resource Block 1. However, a picture is worth thousand words. When RSRP < -120dB, the mean throughput is 0. tilt and E Tilt) will always help to get a godo RSRP and throughput. If all network parameters are well set then azimuth as per the traffic density can help. Improvement DL from 712 Mbps to 875 Mbps = 163 Mbps ( 23 % increase) Improvement UL from 54 Mbps to 120 Mbps = 66 Mbps (122 % increase) • This significant improvement in Uplink Throughput has a very relevant influence in industry use cases, from not being feasible with LTE to be fully enabled by 5G Conclusions LTE level throughput (e. 1 we can see that there are many different types of formats, all with varying levels of indication of the DL and UL information shared between the UE and the eNodeB. As a result, the calculated UL throughput decreases, given an unchanged UL traffic volume. The UL throughput equals the UL traffic volume divided by the UL data transmission duration. Cells with UL RSSI > -90 dBm can be considered as having high UL interference. 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. Almost whole of this site is about LTE. Original code from Github. 4G, LTE Throughput. Summary: RSRQ and SINR are key metrics for LTE systems including CableFree LTE-A Infrastructure. The uplink (UL) Received Signal Strength Indicator, or RSSI, indicates the total wideband received power within the entire channel bandwidth. Distance from cell, max number of active UE are responsible for poor throughput. slow download, blocking, etc. 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 . To optimize Uplink/ Downlink throughput we should check following things first. Some details about parameters are listed below: Bandwidth defines how many radio resources are available to transmit data. It calculates maximum DL throughput depending on bandwidth, MCS (Modulation and Coding Scheme) and MIMO usage. More details how to calculate maximum LTE throughput. The design of scheduling algorithm is a great challenge in long term evolution (LTE) system to improve the How To Improve The LTE UL Throughput. g. Jun 11, 2017 · Physical optimization(M. For the detailed data path for LTE, you can refer to another pages of this site. 213 section 10. To maintain the BLER under this threshold, gNodeB’s use a link-adaptation algorithm based on the UE’s feedback to signal a lower MCS and coding Oct 22, 2019 · CA user throughput can be improved by several methods: 1. LTE Metrics including RSRP, RSRQ and SINR LTE Cellular Networks. They way it takes place in Downlink and Uplink will become evident in a little bit , as we go further down the discussion. HERE, HERE, HERE and HERE. 4 6 3 15 5 25 10 50 15 20 75 100 One resource block inc . Throughput calculation To calculate LTE throughput the following steps should be performed: Define bandwidth. This definition is important as we need to… In case of R99 or HSPA, the ideal throughput is described in a neat page of table and a lot of people knows what kind of throughput they have to expect, but in LTE the situation got much more complicated since there can be several factors determines the throughput and each of the factors can have so many different values. The mean SINR is 2. There has been a series of posts for LTE Throughput computation in both FDD and TDD. ) and will be 50% over the required capacity for backhaul in which case it’s investment in So the more subscribers are active and receive/transmit data the less resources are allocated to a given subscriber. The equation or formula mentioned above is used for LTE throughput calculation. Signal quality: Even if you have good bars, you may still struggle with slow LTE data speeds. 08 Mbps. This page explains the technical differences. MCS and Modulation Order . Feb 20, 2023 · LTE and 5G-NR carriers are aggregated to enhance the coverage, channel capacity, and data speed . There are 116 records. txt) or read online for free. There are 98 records. Nov 13, 2019 · If we refer to TS 136. For more videos, please Cell ID Calculator . The Video covers LTE radio aspects such RS SINR, PDCCH Capacity, PUCCH Capacity, DL and UL data rates. Improving Low UL Throughput in LTE. It is recommended to read OFDMA/SC-FDMA sections to clearly understand throughput calculation in LTE. • The unit of throughput is bits per second or bps. 2 Posts. Apr 15, 2014 · All the other cells are viewed as secondary cells with the main functionality of providing higher data throughput. We cover the below mentioned topics 1. For TDD Case: You can find them. ii) Low throughput does not necessarily mean low CQI. Interference caused by the high noise floor can lead to frequent dropped calls, call setup failure, and poor voice quality. There are 574 records left. Actually the calculation is too simple, […] Oct 1, 2017 · In principle, exploiting direct communication between nearby mobile devices will improve spectrum utilization, overall throughput, and energy consumption, while enabling new peer-to-peer and Which means that in LTE you will have even bigger TBS than HSPA+ Dual Carrier. 1. You may know that MCS (Modulation Coding Scheme) is related to Modulation Order (Modulation Depth, e. What is Throughput? • The term throughput refers to ratio of data transmitted in unit of time. Another thing to reviewed is the uplink RSSI. The Rel-10 carrier aggregation supports aggregation of up to 5 carriers in both DL and UL within either FDD or TDD (assuming the same upload/download (UL/DL) configuration for all aggregated carriers) in the core parts. Improve the TDD competitiveness with respect to FDD deployment, as HPUE will provide a 3dB power increase which will lead to similar performance versus the use of FDD deployed in mid-frequency bands. In LTE – as any wireless system – the performance has a direct relationship with the RF conditions at the time. the performance gap between DL and UL in LTE-TDD networks. Sep 2, 2020 · In this video, we describe the use of DMRS, SRS in UL LTE and how it is related to uplink throughput and overhead in PDCCH and PDSCH. 305 33 279KB Read more Mar 22, 2023 · Dropped calls are usually caused by bad 4G LTE signal. g, you can monitor the CPU utilization using Windows Task Manager) Apr 28, 2023 · 5G NR | VoLTE | LTE-A | Massive MIMO | NB-IoT | NDO Network Specialist at Ericsson, Australia Ali Khalid is a Senior LTE/VoLTE RNPO, NB-IoT and 5G Solution Architect who has successfully led and delivered a number of projects in different regions across the globe including Pakistan, Bahrain, UAE, Qatar, Oman, KSA, Nigeria, Turkey, Poland and Japan. Table 1: General 3GPP LTE & LTE-A Pro Features LTE and LTE-A Pro Features Brief Summary Carrier Aggregation Aggregation of spectrum including licensed and unlicensed bands for UL and DL to improve throughput, capacity and latencies MIMO Techniques Improve spectral efficiency with many types of MIMO Transmission modes, FD-MIMO, MU-MIMO, SU-MIMO The SINR> 10dB and UL throughput< 0. How to improve the LTE UL Throughput - Free download as Word Doc (. In this section, I would show you some examples showing the increased communication reliability with a couple of different Transmission Mode. pdf), Text File (. Why Is My 5G or 4G LTE Cell Data Slow? There are various reasons why you may have slow data speeds. High values (higher than -104 dBm) could impact throughput, but in this case UL throughput. Today is the start of uplink throughput computation. This 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 essence, throughput can be described in terms of BLER as: Thus, as BLER decreases, the throughput increases. Definition of LTE Throughput Calculator . Example 1 > Throughput, CQI, BLER while driving on a highway Oct 21, 2019 · While testing LTE Network performance, its observed that sometimes we find difficulty to Achieve base Line UL/ DL throughput targets although we have good radio environment. This site is for everything on 4G/LTE. dears find below some recommended switches to improve the UL Throughput,thanks MOD CELLALGOSWITCHOCALCELLID=2,DLSCHSWIT . The document provides a list of recommended switches to modify for a cell with ID 2 to improve UL throughput. Let's delve into the technical details of throughput in LTE: 1. See full list on techtrained. Use this page calculate things such as eNB ID/RNC-ID/BSIC or hex values of IDs. 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. The LTE throughput optimization procedure described in this article requires PDCCH enhancements. LTE Throughput. Jan 11, 2024 · Although similar to DL throughput, UL throughput has special considerations to take when analyzing performance issues on a network. UL RSSI that is too high will contribute to poor network quality. Use this calculator to calculate LTE throughput, and carrier aggregation Throughput. CA has several advantages, including an unutilized spectrum that can be effectively used to improve spectral efficiency, to increase the UL and DL data rates with higher throughput, and improve the system performance. Therefore the picture below should explain you on Which channels in DL and UL , power control takes place. This case is more often seen. 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". LTE throughput References Dec 29, 2022 · Overall the radio conditions can be measured through the CQI (Channel Quality Indicator). January 11, 2024 — 1 Comment.
