Throughput debugging in lte

Throughput debugging in lte. 69 Mb/s. Aug 1, 2017 · Long Term Evolution (LTE) standard is conceived as an all IP network to achieve higher data rate, low latency, scalable bandwidth, mobility and extended coverage. Now let try apply the CDD. S. 8×2= 201. ii) PHICH. TDD throughput calculation is very similar to FDD case as you see below. 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. Outline Measurement Based procedures for EN-DC setup. It has been realized that with the increase in frequency for both 4G LTE and 5G NR, there will be the decrease in BER, BLER and increase in throughput. KPIs co-relate and depend on each other. It is recommended to read OFDMA/SC-FDMA sections to clearly understand throughput calculation in LTE. is helpful to know , how they are performing . Discuss what is carried by the X2-NRcontainer. Congestion: Network congestion can reduce throughput. Feature selection is Measure PDSCH throughput of the 5G NR downlink. e. 6 GHz and the TV white space band at 800 MHz. 8×4= 403. 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. In normal DL or UL subframe, TBS/subframe can be calculated in the same way as in FDD. Throughput performance does not meet the specifications: Among three LTE routers, Brand B performs the best. 8 Mb/s, whereas a throughput of more than 10 Mb/s was achieved at a distance of 7. Definition of Jan 6, 2010 · LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. Let’s take the example for LTE using FDD, where channel bandwidth can be 5 MHz, 10 MHz and 20 MHz. The maximum FTP throughput that I got was around 97 Mbps with FileZilla using a LTE data card, system bandwidth 20M, MIMO. 125 GHz and Jul 23, 2021 · Debug log enabled: Sometime throughput will be less because debug log level is high or more development log is enabled. The class covered the following topics :Throughput Debugging AnalysisLTE FDD Frame StructureLocations of PDCCH, PCFICH,PDSCH,PSS ,SSS in Resource blockConnec NR\LTE protocol\Throughput debugging. 13 Mb/s~45. With the help of Table 2 , the hardware infrastructure regarding the coexistence of both communication technologies (4G LTE and 5G NR) can be developed. Modulation Techniques in LTE. Mostly common deployment of LTE in North American market is FDD based. 1 Data collection. Useful commands and logs to collect before contacting TAC support •Show usb •Show inventory •Show uplink •Show uplink cellular details Sep 1, 2020 · It considers low average throughput for the cells with the range 200–400 MB average traffic volume. Use this calculator to calculate LTE throughput, and carrier aggregation Throughput. 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 Jun 11, 2017 · Physical optimization(M. This work models and predicts the DL-Throughput by utilizing LTE data measurements to train supervised ML models. Just think of a tap/valve from where water flows If the supply of water is low due to less storage then ? (LTE -BAND 3/5/40) or Mixed mobility (Changing Jan 11, 2024 · Although similar to DL throughput, UL throughput has special considerations to take when analyzing performance issues on a network. • Furthermore NSA could be provide the advantage of using feature: DL NR+LTE aggregation. Development and debugging of 4G/5G Layer 2/Layer3 Developer,MAC,PDCP,RRC,RLC,RRM,NAS 2. The general Dec 29, 2022 · Throughput is a basic KPI on any LTE network. i) BandWidth. Jun 1, 2015 · TCP Throughput: Definition: TCP (Transmission Control Protocol) throughput refers to the rate at which data can be successfully transmitted over the network. Jul 1, 2023 · With the enormous evolution of the smartphone, especially with the appearance of the fourth generation (4G) cellular networks, the demand for high-speed data rate, low latency, and video streaming have been increased. 7, 9. com A Global Perspective of 5G Network Performance Our analysis of network performance and user experience results from sub-7. On completion of 24 hours, steps 1, 2, and 3 mentioned above are repeated. The LTE AP attempts to connect to the LTE AP Management If an LTE AP is unable to connect, it keeps on retrying for 24 hours. The quality of DL-Throughput is a critical element for video streaming and gaming. At the first stage of LTE(Rel 8), we started with "Orange colored" channels and now (Rel 13) we see a several new colors (channels) as below. Experienced in debugging protocol software issues across the protocol stack (APP/CM/SD/NAS/AS/PHY) of UMTS/LTE/5GNR wireless technologies Sep 1, 2011 · We describe issues on the TCP performance in LTE networks. Calculator is based on 3GPP 36. I can get the connection up with nearly no action by me on a fresh start (no startup-config). Following is the real Downlink signal coming out of a LTE network emulator. Good understanding of 4G/5G NR SA Architecture (functions of UE, gNB Good understanding of networking stack, specifically TCP and UDP protocols – throughput analysis, optimizations for wireless networks, debugging issues. Senior DSP Engineer was asked 27 December 2014 Corner cases while conversions Analyze LTE attach procedure logs for EN-DC setup. Below is Feb 12, 2015 · The maximum data rate depends on channel bandwidth. Simply select network type and type in the LCID/CID. This is specially for QCOM SoC usi In essence, throughput can be described in terms of BLER as: Thus, as BLER decreases, the throughput increases. • Monitor and Debug LTE Data Throughput in different Channel BW’s like 3, 5, 10, 15, 20 MHz and in different Channel Conditions like Good RF, Poor RF with different Fading profiles like EPA 5 LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. MIB in LTE has very minimal information (This is a big difference from WCDMA MIB) . 8×6=100. Jul 26, 2021 · Second, we develop machine learning models using lower-layer metrics, describing the radio environment, to predict the available throughput. Throughput Calculation - From UE Cateogory . This example demonstrates how to measure the Physical Uplink Shared Channel (PUSCH) throughput performance using the LTE Toolbox™ under conformance test conditions as defined in TS36. We would like to show you a description here but the site won’t allow us. 6 Mbps, and that seems to be good average throughput with the highest traffic volume with an average 3. •To achieve higher edge throughputs withou It covers the same for 5G downlink throughput and 5G uplink throughput. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. To avoid issues with maintenance and feature support, we recommend migrating your test coverage to the Mobly test framework. 1 For example, the throughput prediction can be a solution that can improve quality in video streaming applications such as YouTube or NetFlix [2]. This LTE throughput Calculator is used for calculation of throughput as per 4G LTE standard. Furthermore, with rising demand and complexity, traditional network management The measured value of the LTE cell range will be an important step to calculate the coverage probability of the real on-site LTE network. Feb 21, 2021 · In this tutorial I explained how to analyze UE sid logs for a LTE registration, IMS registration and VoLTE call in detail. The document discusses factors that influence data throughput over LTE networks. I would recommend you to try investigate on what's is CDD in practical sense and what would be the advantage of applying CDD. This is the first message from UE to eNB when you power it on. TEMS Investigation Analysis . Average DL user throughput is 7. MIB. Feb 25, 2020 · Lets talk about word throughput first. g, 100 Mbps and over) is pretty tough task not only for IP stack, but also the IP application software and CPU utilization. LTE RACH in Details . This post is to address common issues that affects downlink throughput and also to dig into possible solutions. A proprietary dataset is utilized to train and test the model. If all network parameters are well set then azimuth as per the traffic density can help. The way to calculate the ideal throughput using these factors are explained in "Throughput Calculation Example" in Quick Reference page. 22 Mbps . Frequency bands for 5G Dec 23, 2019 · How is uplink throughput in LTE calculated? If modulation used is 64 QAM (6 bits per symbol) then throughput will be 16. 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. Install and run Amarisoft AMARI LTE 100 SDR on Linux PC to build Personal 4G-LTE Service. Medium Access Control (MAC) layer throughput refers to the amount of data successfully transmitted by the MAC layer over a period of time. 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). 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. The only information it carries are . Apr 15, 2022 · 9004-LTE tips to debug . 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. Senior DSP Engineer was asked March 7, 2020 Jan 5, 2024 · LTE (Long Term Evolution) protocol testing involves verifying and validating the functionality, performance, and reliability of LTE networks and devices to ensure they comply with the LTE specifications and standards. What is Throughput? • The term throughput refers to ratio of data transmitted in unit of time. At the physical layer in 5G and LTE, typical BLER threshold defined is to be ≤10%. Therefore knowledge of other KPIs such as Accessibility, Retainability , Mobility etc. Apr 1, 2023 · 1. 2 Mbps. The coverage area for the LTE 800 MHz base area in the Kumpuvaara area had a maximum distance of 17. Operating Mode Notification Interview question for Senior DSP QA Engineer. g. Describe how the network and UE indicates EN-DC support. It consists of the core network and the access network. For a more detailed explanation of the steps implemented in this example, see Model 5G NR Communication Links and DL-SCH and PDSCH Transmit and Receive Processing Chain. The throughput at the last step in the process can be defined as physical layer throughput. Software Define Radio - Amarisoft AMARI LTE 100 SDR. Jan 6, 2010 · LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. We consider the higher LTE-Advanced band at 2. TEMS Investigation is the market-leading mobile network testing software that allows you to verify, optimize and troubleshoot your mobile network. Introduction. Nov 19, 2019 · If the 5G cell is not utilized or the throughput is too low, check if the 5G cell is advertised on LTE-SIB 2. Calculation of Throughput in LTE. This rising demand for network utilization has demonstrated the need for more service improvement. If we disable logs, we may get expected throughput number. Interview question for Senior DSP QA Engineer. Senior DSP QA Engineer was asked December 12, 2020 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. The past decade has witnessed a staggering evolution in cellular networks. In LTE, number of SIB is small and none of them are segmented. g, you can monitor the CPU utilization using Windows Task Manager) Dec 6, 2023 · Debugging of 4G NETWORK | Parameters to check for DL and UL speeds while debugging from network point of view. Testing 5G: Data Throughput Application Notes 5G is rapidly approaching, bringing with it the promise of powerful new use cases that will require a flexible technology that can deliver ultra-reliable low latency (uRLLC), massive machine-type communications (mMTC), and much faster data rates with enhanced Mobile Broadband (eMBB). May 24, 2017 · UL: same as DL. Actually the calculation is too simple, […] place between 4G LTE FDD and 5G NR FDD and the output quality should become poor. Senior DSP QA Engineer was asked December 12, 2020 Jan 6, 2010 · LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. An exercise of running personal 4G LTE base station software on Linux PC. 8Mbps for a single antenna port. . LTE Screen Windows. MAC protocol data unit (MPDU) is the unit of transmission at MAC layer. During the coexistence of 5G NR FDD and 4G LTE FDD, there are four type of coexistences i. There have been some operators who made move in TDD deployment. 211 communication standards and allows you to calculate Max LTE Users depend on Bandwidth, CFI format, Aggregation CCE levels, DCI, etc. 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. 1 km. And some of the WCDMA SIBs like SIB5 and 11 has multipe segments. signalsresearch. LTE solutions target new cellular networks. RACH stands for R andom A ccess Ch annel. This paper compares the downlink throughput performance of LTE-Advanced in two different frequency bands. As LTE uses different channel bandwidths both for FDD and TDD. 6 GB. The models are initially validated on the LTE network and then applied to a non-standalone 5G network. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION Mar 3, 2024 · Thank you for sharing this insightful article on LTE throughput optimization and the role of PDCCH enhancements in achieving it. Mar 14, 2023 · This Page provides LTE Max (Maximum) users capacity calculator based on CCE. LTE throughput calculation formula or equation Jan 11, 2024 · Although similar to DL throughput, UL throughput has special considerations to take when analyzing performance issues on a network. The measured data analysis results showed that the mean Downlink (DL) throughput corresponding to each MCS was 10. Distance from cell, max number of active UE are responsible for poor throughput. Apr 28, 2023 · 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. Throughput prediction plays an important role in real-time video and audio streaming services that require low-latency network protocols. Log analysis is crucial for troubleshooting issues, optimizing network performance, and ensuring the overall reliability of the 5G infrastructure. Previously I discussed LTE throughput that can be achieved in Downlink for LTE FDD case. scheduler with C/C++ programming. Feb 26, 2024 · Bias-Free Language. data throughput has been the key metric recently [9 –11]. Details of Signaling Message . 1 System components The general LTE system architecture is shown in Fig. (DL) throughput of 13. Cisco 4G LTE NIMs support the following 4G/3G modes: 4G LTE —4G LTE mobile specification provides multi-megabit bandwidth, more efficient radio network, latency reduction, and improved mobility. 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. Highlights •The main objective of the proposed scheduling algorithm is to increase the edge throughput without sacrificing cell throughput in LTE networks. iii) SystemFrameNumber Following shows the channel mapping for various downlink data. Similar in the third cluster, the number of output rows is 43,047 rows for 100 eNB. LTE Throughput Calculator . Differences in LTE Throughput Performance: Overall, Brand A has the least ideal throughput conversion performance. This is the common configuration for customer Network. LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. • Downlink peak data rate has never been a limiting factor for uses cases covered by 5G EVE Downlink Peak Data Rate The SC-R sets relevant IP address of the SecGW and LTE AP management (ACS) on an LTE AP. It also addresses the impact of smartphone orientation, with results quoted for three different elevation angles. FDD and TDD in LTE. LTE Call Processing , LTE Throughput Debugging UL & DL, Radio Procedures, SON Features, Python File handling & post processing methods etc. 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. Is one of the three major KPI, along with and latency and packet loss when we measured what it’s called “the integrity” network. Oct 9, 2015 · What could be reason for rrc connection re-establishment during handover and how to debug this issue in LTE? +1 vote LTE: What all parameters are considered by an eNodeB to allocate the PUSCH resources for an UE ? The SC-R sets relevant IP address of the SecGW and LTE AP management (ACS) on an LTE AP. TCP throughput is determined by various factors such as TCP window size, loss probability and RTT. Explain Non-Measurement Based procedures for EN‑DC setup. In this write up we will learn briefly general troubleshooting guidelines for downlink throughput in LTE networks with MIMO 2x2. However, it is not up to par in Category 6. I made several examples of resource allocation and its ideal throughput as follows. The model in this example measures the throughput of an end-to-end PDSCH simulation. , side lobes) and external interference. Training in LTE protocol testing typically covers a range of technical aspects related to LTE networks and protocols. 104. 23. tilt and E Tilt) will always help to get a godo RSRP and throughput. Debug issues in end to end data throughput in LTE protocol stack in live… Show more Test modem system for LTE-WLAN coexistence algorithms, LTE RRC and NAS spec, data throughputs for different This site is for everything on 4G/LTE. 6 Mbps and with 4×4 MIMO system then throughput is about 100. Cisco 4G LTE NIM is feature-compatible with Cisco EHWIC 4G LTE. Recommended Links for Throughput Test/Optimization LTE level throughput (e. Another difference is about TBS each subframe as marked in blue. Important factors are listed in two categories: physical layer factors like transport block size, code rate, CFI value; and other factors like buffer status reports, CQI reporting accuracy, transmission mode, TCP 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 Dec 6, 2023 · 5G log analysis involves examining and interpreting log files generated by 5G network elements and devices to gain insights into the performance, health, and security of the 5G network. Describe how UE obtains system information. Original code from Github. If the SINR is not as expected, check for internal interference (e. 4G LTE Throughput calculator; 4G LTE EARFCN calculator; 4G LTE Link budget calculator; 4G LTE Timing Advance Distance calculator; 4G LTE RS RE Power boosting calculator; 4G LTE Cell ID (ECI) 3G UMTS UARFCN calculator; QoS 5G NR; QoS 4G LTE; Free Space Path Loss (FSPL) Calculator; Watt to dBm converter; Other caculators. It is a critical metric that directly impacts the user experience and the efficiency of the wireless network. If we consider a 2×2 MIMO system then this throughput will be double i. 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. I capture the signal and analyzed it with a vector spectrum analyzer with LTE analysis functionality. The Simulink model can operate under TM1, TM2 and TM3 transmission modes without implementing hybrid automatic repeat request (Hybrid ARQ). This calculator on LTE throughput is based on MCS,Number of PRBs (Physical Resource Blocks) and number of MIMO antennas. 25–3. 4, and 12. Throughput Calculation - TDD . The key difference is 'number of subframes /sec' parts as marked in red. 2 Mb/s. SNR, CQI and MCS. Factors Influencing Throughput: Bandwidth: The available data rate in the LTE network. In good radio condition 64QAM modulation will be used for downlink. Senior DSP QA Engineer was asked December 12, 2020 LTE Throughput Calculator . 100. Assuming that the bandwidth of each carrier is same, the more carriers are used the higher throughput you can expect (NOTE : In reality, there are cases where the bandwidth of each carrier would not be same. Finally, we suggest scaling the proposed model into the future standalone 5G network. Use this page calculate things such as eNB ID/RNC-ID/BSIC or hex values of IDs. It recommends writing down all components in the data path and having tools to measure each component. The throughput for a device working in a live net LTE throughput calculator EXAMPLE: Input : MCS = 10, PRBs = 20, Number of MIMO Antennas = 2 Outputs : LTE throughput = 6. 8 km, the throughput further declined to 1 Mb/s. 3 km with a mean DL throughput of 9. Core network nodes include the mobility management entity (MME), serv- 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. 4. Complex beam distribution Depending on the deployment method, some of the tests may be unnecessary or make no sense. October 2019 www. In 802. This increasing demand in 3 LTE system architecture 3. These conditions are the most common condition for maximum throughput test. In LTE release 8 there is no carrier aggregation, so let’s just consider simple cases. Radio Frequency (RF) driving test was used to collect the parameters of LTE data at a different route with an average total of 10Km. 11n, MPDU aggregation was introduced to increase the throughput. 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". At the distance of roughly 11. PRE-REQUISITE Jan 2, 2024 · 3. Good understanding of wireless protocolsGSM, GPRS, EDGE, UMTS, CDMA, LTE High level understanding of host & gtmodem communication: Oct 22, 2021 · Solved: I'll keep this brief as possible; I'm having trouble bring up my LTE / Cell0/2/0 connection on my C1111-8PLTE. 2. The User DownLink (UE DL) throughput is considered the most effective Key Performance The first main factor you can think of is 'how many carriers are used for the data traffic'. • The unit of throughput is bits per second or bps. Jul 26, 2020 · This video is about factors affecting Throughput in LTE. One of the first things to do is: confirm parameter settings, system configuration and RF environment. The documentation set for this product strives to use bias-free language. Throughput is the amount of data transmitted over a period of time. NR base stations coexist with LTE terminals, NR terminals coexist withLTE base stations,LTE base stations coexist withNR terminals and LTE terminals coexist with NR. Here's a The SC-R sets relevant IP address of the SecGW and LTE AP management (ACS) on an LTE AP. eNB estimate of the throughput of PDCP SDU bits in uplink for packet sizes or data bursts (where a UL data burst is the collective data received while the eNB estimate of the UE buffer size is continuously above zero) that are large enough to require transmissions to be split across several TTIs, by excluding transmission of the last piece of data. But still there would be some possibility of RLC layer issues especially related to fragmentation and timing issues due to following reasons : Aug 7, 2024 · Deprecated: ACTS, including SL4A, the device-side helper app for ACTS tests, was deprecated in October 2022 and is no longer being maintained. The architecture of LTE is flat compared to previous cellular technologies. As LTE evolves, you would see more and more new channels are added and this mapping gets more complicated. 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. A network planning approach is required for network services to meet user expectations and meet their needs. So, in stead of directly jumping into max throughput test, increase the throughput step-by-step and check CPU utilization (e. Cell ID Calculator . Phy layer Throughput = (TB Size * 8 bits/byte * Num_Layers * 1000 ms/ sec) bits/sec PAGE 16 -N9825 1 B May 2012 Qualcomm Confidential and Proprietary |80 MAY CONTAIN U. Downlink throughput vs Uplink throughput. Take the Next Step This throughput often get configured with the throughput calculated at the last step of this process. Even though they use a little bit different name, in all cellular technology (CDMA, GSM, WCDMA, LTE) there is a specific signal that perform the same function. Today, we will talk about How much throughput you can achieve (in theory) for LTE Downlink TDD scenario. The numerous services brought to the users by 4G network have caused an increasing load demand. Let's delve into the technical details of throughput in LTE: 1. Feb 5, 2017 · LTE THROUGPUT TROUBLE SHOOTING. It’s recommended that no debug build should be used for executing throughput. 21 Mb/s within MCS (0)~MCS (28), and the overall MCS mean DL throughput was 18. Collection of DL Throughput data was carried out in the urban environment of Najaf province, Iraq, from three mobile network operators. dkd qmdzsx smwvq fhxmdpi zfnz wrviaops hzxsc dble qthvtag jklvnr