The LTE physical layer supports two types of frame structures as types 1 and 2. The type 1 structure ( Fig. 10 Variable Subcarrier Spacing Slot configuration 0 Subcarrier spacing (kHz) 15 30 60 120 240 Symbol duration (no CP) (μs) 66. LTE network offers about 300Mbps data. e, 2G/3G, LTE, NR). 10 mili second radio frame consists of Downlink subframe, Uplink subframe and Special subframe. Transmit Diversity & Receive. Instead, we can define the pattern in much more flexible way using several parameters as shown below. LTE uses the concept of a resource block, which is a block of 12 subcarriers in one slot. Following table summarizes LTE FDD and TDD versions. 25KHZ, whereas UL Subcarrier=15KHz. It describes the details of the optimization process including performance measurements and troubleshooting mechanisms in addition to demonstrating common. See the differences and similarities with legacy LTE. · Radio frame size= 10 ms. The downlink and uplink frame structure parameters are the same, except that the time-domain underlying symbols in the downlink are OFDM symbols, whereas in the uplink the underlying symbols are SC-FDMA symbols due to the use of different multiple access methods in. The frame structures for LTE differ between the Time Division Duplex, TDD and the Frequency Division Duplex, FDD modes as there are different requirements on segregating the transmitted data. Each sub-frame uses 7 OFDM symbols, each with a cyclic prefix. LTE has radio frame of duration 10ms consisting of 10 subframes. 2 LTE Frame Structure The frame structure is dependent on the duplex scheme applied in the spectrum. Frame Structure Downlink Uplink Reference Signal. A frame has a duration of 10 ms and consists of 10 subframes. 4G-LTE packet structure. Type 2: used for the LTE TDD systems. The UE uses its f Search spaces in LTE The Base Station (BS) determines a PDCCH format to be transmitted to the UE, creates an appropriate DCI and attaches a CRC. Ts is the basic time unit in LTE. Special Subframes Radio Frame Length = 10 ms. LTE: Key Features 2. · Sub-frame size= 1 ms. One subcarrier has bandwidth of 15 kHz. Moreover, if Carrier Aggregation is done with a couple of such carriers, it will provide a huge throughput gain. Channel Mapping. The frame structures for LTE differ between the Time Division Duplex, TDD and the Frequency Division Duplex, FDD modes as there are different requirements on segregating the transmitted data. Timing Advance in LTE . A typical LTE frame is 10 ms (milliseconds) long. 5 ms each. 19/06/2016 0. Calculation: 1 Subcarrier of PRACH preamble =1. Figure 4shows the structure of a subframe. RACH Configuration . Since the modulation format is OFDM (regular OFDM for the downlink, and DFT- precoded OFDM in the uplink. For the normal mode, the first symbol has a cyclic prefix of length TCP = 160 ⋅ Ts ≈ 5. 7 33. 1. The duration of each subframe is 1 ms. For example, the length of PRACH with preamble format 0 is (3186 + 24567) Samples. There are two types of frames in LTE;FDD and TDD. This video looks at OFDM waveforms, and the different subcarrier spacings supported in 5G NR. TD CP Sub Carrier of Configuration Symbol Length each RB 160 @ Slot 0 Normal f=15k CP Hz 144 @ Slot 12 7 1-6 Extended f=15k 512 @. In addition, each subframe is further subdivided into two equal time slots, ie each slot is 0. LTE is mainly designed for high speed data applications both in the uplink and downlink. LTE frames are 10 msec in duration. What is an LTE frame structure? In LTE, DL and UL transmissions are organized in radio frames of 10 ms each. 1 Protocol structure over S1 13 6. 72 (=0. As illustrated below, there can be two major types suggested. FDD and TDD mode can be combined (depends on UE capabilities) in the same physical layer. from publication: A modified CA-CFAR method for LTE random access detection | Random Access is an important aspect of mobile. I would just put down a high level descriptions of the difference here. 1. Downlink ※ Reference - 3GPP TS 36. Hardware. Expected in the 2008 time frame, LTE is a 3GPP standard that provides for an uplink speed of up to 50 megabits per second (Mbps) and a downlink speed of up to 100 Mbps. g. A standard LTE system architecture consists of an Evolved UMTS Terrestrial Radio Access Network, more commonly known as E-UTRAN, and the System Architecture Evolution, also known as SAE. High bandwidth and low latency are key selling points of 5G, and ones that businesses have been eager to adopt. 2. 3GPP defines two types of frames based. 5G, the fifth generation of wireless technology, employs a new radio access. LTE Introduction. Physical layer sampling instant depends on number. Figure 1 illustrates the structure of the LTE radio frame. Time z) Subcarrier (15 kHz) Symbol | 19 LTE-V2X PHY-layer Structure A 10 MHz channel comprises 50 RBs (20 MHz →100 RBs) Divided into several equal-size subchannels Each subchannel divided into control and. frame, called resource elements (REs). Instead, we can define the pattern in much more flexible way using several parameters as shown below. Sub frame duration=1 ms. LTE frame structures used for TDD 36. e. Secondly, 5G supports a single carrier of upto 275 RBs while LTE only supported a single carrier of 100 RBs. 10 mili second radio frame consists of Downlink subframe, Uplink subframe and Special subframe. RACH is responsible for the Random-Access process. 5 ms) in the time. Space between the chhanel and the next channel is always same regardless of the system bandwidth of the LTE band. The frame can be dynamically configured to any one of the preset configurations shown, depending on the instantaneous data transmission requirement. Time Domain transmission pattern of SS Block in NR is more complicated than LTE SS Block (Actually LTE has only one pattern of SSB Transmission in Time Domain as shown in LTE Frame Structure. As shown in Figure 1, the total length of downlink pilot time slot (DwPTS), GP, and uplink pilot time slot (UpPTS) fields is equal to. We will ignore the spatial domain for now and focus on the time-frequency plane. There are seven possible configurations for LTE TDD frame as shown below. It describes both TDD band and FDD b. There are three types of Frame Structure : Type 1 for FDD, Type 2 for TDD, Type 3 for LAA. Figure 3 shows the frame structure for LTE in FDD mode (Frame Structure Type 1). < 25. when μ = 0. 2 μs. The UE and eNB communicate with each other based on the radio frame structure, as shown in Figure 22. < LTE FDD Uplink Frame Structure > As in downlink, Frame time and slot time in Uplink is the same as in the downlink. LTE FRAME STRUCTURE. The evolved packet core communicates with packet data networks in the outside world such as the internet,. – Frame structure type 2 (FS2): TDD. In the time domain, LTE transmissions are organized into radio frames with a length of 10 ms, each radio frame is divided into ten equal 1 ms subframes. 3. I am happy to share the top articles of ShareTechNote in 2022 for 5G NR, 4G LTE and Engineering Math. LTE Frame Structure Types. LTE tutorial videos, articles, and code examples introduce key LTE concepts and effective techniques and workflows for LTE physical layer development including: Waveform generation. Hierarchy of Frame Structure : Frame (Radio Frame) --> SubFrame --> Slot (Same as in 5G/NR) Number of slots within 1 subframe : 2 only, but the concept of slot is not used often in LTE. 03255) us. The Evolved Packet Core (EPC). k) that the frame structures given in Annex 1, Frame A and Frame B can be implemented for NR(New Radio) systems; l) that the Frame B2 given in Annex 1 is compatible with the LTE-TDD frame structure configuration n o. The resulting location of the process is as shown in Reference Signal section of Downlink Frame Structurepage. The downlink subframe structure in LTE-M only uses a part of the downlink subframe REs in LTE. 5 Downlink distributed transmission 178 8. Selection of a frame format c. Although choosing a 5G NR compatible frame format may. In the LTE standard (E-UTRA Citation 2019), OFDM signals are specified by three parameters, namely, the number of subcarriers or the Fast Fourier. So LTE need to keep the rule set by 802. THE Mobile Broadband Standard. 7. However, unlike LTE-U, LAA use a special physical layer frame structure called Frame Structure Type 3 which didn't exisit before. It uses a 20 MHz channel with 2048 subcarriers. Page 1. As shown in Figure 2, the LTE sub-frame is composed of 7 OFDMA symbols and, according to table 1, in each OFDMA symbol only N m − 1 sub. 5 ms. If you can interpret these tables into a correct graphical format, you already understand all the details of Uplink frame structure. 16d standard Zigbee RF4CE Frame Structure Zigbee physical layer Frame Structure Zigbee MAC. In this example we will be simulating what happens when a mobile phone is turned on. In section 5, Simulation results are given and we finally conclude in Section 6. 104: Evolved Universal Terrestrial. The Frame Controller controls the subframe and frame indices. There are two types of LTE frame structure: Type 1: used for the LTE FDD mode systems. BCCH Info. 0 (2019-02): a. 6, the downlink subframe structure in LTE consists of an LTE control region and an LTE data region. Deciding on LTE vs 5G depends greatly on the use cases one expects from the network, as well as one’s budget and location. It is composed of 20 slots of 0. It has explained following topics in the same order as given below:1. LAA . Frame Structure: MAC-LCID. Slot duration=0. The Long Term Evolution (LTE, 4G ) standard defined by the 3GPP supports both FDD and TDD Duplex mode. Because of variable subcarrier spacing, the. Each slot occupies either 7 symbols (for normal CP) and 6 symbols (for. 2. The IP packet is enveloped in the 4G-LTE layers: 4G-LTE Packet Structure. of slots=20. LTE Frame Structure One element that is shared by the LTE Downlink and Uplink is the generic frame structure. 211 4 Frame structure). Figure 2. LTE TDD frame 36. 211 frame structure type 2 (DL / UL / SSF) Correct choice of Configuration value is essential when setting the UL/DL ratio for CableFree LTE networks using TDD bands. Determine frame synchronization and cell identification (cell search procedure) based. LTE-A Frame Structure Yang Chamsol INHA UNIVERSITY Contents 1. The selection of bandwidth depends on factors like network capacity and available spectrum. The Long Term Evolution (LTE) takes the Orthogonal Frequency Division Multiple Access (OFDMA) as the. This video then walks you through the concept of carriers and bandwidth parts, and. A non-exhaustive list of. There are three types of Frame Structure : Type 1 for FDD, Type 2 for TDD, Type 3 for LAA. Channel Mapping. Downlink Reference - 3GPP TS 36. SAE’s main component is the Evolved Packet Core, also known as an EPC. A Radio frame/System frame is of 10 msec. The minimum unit being frame (or TDMA frame) is made of 8 time slots. SI-1 transmitted every 80ms, SI-2 every 160ms and SI-3 every 320 ms. 9. But there's plenty of work to do before the technical. Uplink3. The access frame is access of 15 access slots and lasts 20 ms (2 radio frames). from publication: Analytical Link Performance Evaluation of LTE Downlink with Carrier Frequency Offset | In this paper, we evaluate the link. – Frame structure type 1 (FS1): FDD. RACH is responsible for the Random-Access process. The purpose of different frame structures: flexible, multiple uses. For more information, see LTE. Standards for the first and second phases of 5G are moving towards completion, and early deployments can piggy-back on 4G LTE infrastructure. LTE-A Frame Structure. Sub frame duration=1 ms. Page 2 - 2 - INHA UNIVERSITY. Choose a configuration with more “D”s in the frame means greater proportion of Downlink Data (normal for most Internet /ISP applications). 211 6. The subframes may be divided into standard sub frames of special sub frames. 3 16. Selection of a special slot configuration Downlink and uplink transmissions are organized into radio frames with 10 ms duration. The Evolved UMTS Terrestrial Radio Access Network (E-UTRAN). Frame Structure - Candidates before 3GPP . Now (as of Sep 2017) 3GPP official specification (38. Define Frame Structure? Q02. It is defined as 1/ (15000 x 2048) seconds (=0. The slot is of 0. A phone must typically perform the following tasks (Figure 5): Acquire a signal on a given LTE carrier frequency. One GSM hyperframe composed of 2048 superframes. If you are interested in some historical aspects of the 5G Frame structure, it would be good to read through this. In order to make use of the overlapped LTE bands, a Downlink Only Frame Structure (DOFS) approach is. Figure 2: LTE frame structure type 1 [2] LTE frame. But in NR, the number of slots varies according to the numerology. Resource Allocation Note: This is the 2nd lecture in a series of lectures on 1G to 5G. in 1 slot, the number of symbols are fixed that is 14-with normal cyclic prefix (CP) and 12-with extended CP. A frame structure is disclosed herein that aims to provide more flexibility. DCI DCI . Basic time unit Ts for BW of 20MHz, (1/15000)*2048 seconds equal to 32. ms each) while each sub-frame is further divided into 2 slots (0. Learn the basics behind 5G NR waveforms, frame structure, and numerology. Keywords: 3GPP, LTE, LTE-A, LTE system toolbox, Physical frame structure I. 1 primary and 4 secondary). 211 for FDD LTE is as follows. Frame structure type2 is applicable only to TDD and is provided for compatibility with legacy UTRA TDD systems. The components of the LTE network. 1-1: Mapping between cell-identity group and the indices m0 and. Frame Structure; LTE-NB : Physical Layer : Uplink : SC-FDMA Baseband Signal Generation; LTE-NB : Channel Structure; LTE-NB : HARQ; LTE-NB : Multi Carrier Operation (Anchor. Some parameters do not apply to the Basic LTE PRACH and Basic LTE-A PRACH. A groThe Long Term Evolution (LTE, 4G ) standard defined by the 3GPP supports both FDD and TDD Duplex mode. 5: Gable Frame Steel Structure. Each LTE frame has a duration of 10 ms, and is subdivided into 10 equal-size subframes of 1 ms; each subframe comprises two slot periods of 0. Data Rate: 326 Mbps/down 86 Mbps up (4x4 MIMO 20 MHz) 9. These are; - Type 1 FDD (Frequency Division Duplexing) - Type 2 TDD (Time Division Duplexing) Type 1: It is designed for frequency division duplex, and is valid for both half duplex, and full. Additionally, we assume that the LTE communications use Time Division Duplex (TDD), in which the radio frame structure is illustrated in Figure 2. Frame Structure - Candidates before 3GPP . The underlying data carrier for an LTE frame is the resource element (RE). The biggest difference of any new wireless communication technology starts from physical layer frame structure. Suresh Sahni. 211 - Figure 9: Frame structure for downlink DPCH > HS-SCCH(HS Shared Control Channel) HS-SCCH is to carry the control information for HS-PDSCH and it has fixed rate of 60 kbps and spreading factor of 128. The performance comparison of the different 5G NR numerologies at various speeds and frequencies and within most common 5G scenarios was made with 1000 transmission time intervals (TTI) per numerology, using the PHY layer parameters of LTE and adjusting the frame structure with the parameters of the. We first introduce the LTE signal structure. This site is for everything on 4G/LTE. Downlink. Learn the basics behind 5G NR waveforms, frame structure, and numerology. LTE FDD Radio Frame structure :-. Let us understand LTE FDD and TDD LTE versions with figures and band example below. LTE frame structure OFDM to address multi-path fading. A typical LTE frame is 10 ms (milliseconds) long. K. Uplink physical channels and uplink physical signals are as follows. For more information, see LTE Toolbox™. The LTE half-frames are further split into five subframes, each 1ms long. One Radio Frame is made up of 10 subframes. The LTE control region consists of one or more OFDM symbols in the beginning of the subframe and the LTE data region consists of the. The air interface described in this book covers the concepts of LTE frame structure, downlink and uplink scheduling, and detailed illustrations of the data flow across the protocol layers. LTE Frame Structure Types. Following equation is based on 36. There. 3 Mode of Operation : 1. The following are the two types of radio frame structures: (i) Type 1: supports FDD mode. User Equipment (UE) The internal architecture of the user equipment for LTE is exactly the same as that of UMTS and GSM, which is mobile equipment (ME). The GSM frame structure is designated as hyperframe, superframe, multiframe and frame. OFDMA System Model LTE (Long Term Evolution) uses OFDMA and SC-FDMA at downstream and upstream for downlink and uplink transmission. Base stations need to. How many Time-Slot are present in Sub-Frame? Q04. For the FDD mode of operation, there are two carrier frequencies, one for uplink transmission (f UL) and one for downlink transmission (f DL). LTE Frame Structure. 5), there is a single carrier frequency and uplink and downlink transmissions are separated in the time domain on a cell basis. In case of co-site deployment, slot- and frame structures may be aligned to simplify cell search and inter. 4 Synchronization signals 191The 5G NR frame structure supports Frequency Division Duplex (FDD) operating during transmissions in the paired spectrum, while Time Division Duplex (TDD) is used for the unpaired spectrum. 0. LTE FDD. , Frame Structure Type 3) was introduced to facilitate unlicensed spectrum operation consisting of 10 subframes of length 1 ms as illustrated in Fig. With this shift, the sequence of subframes in the LTE frame becomes D, D, S, U, U, which is the same structure of the Cambium PMP frame (downlink, turnaround time, uplink). During each frame, there are ten uplink subframes and ten downlink subframes, and uplink and downlink transmissions can occur simultaneously. LTE Frame Structure SU0 SU1 SU2 Superframes (10 ms) SF0 SF1 SF2 SF3 SF4 SF5 SF6 SF9 Subframes (1ms) Ref: Rhode and Schwarz, “UMTS Long Term Evolution (LTE) Technology Introduction,”. The type 1 structure (Fig. Frame Structure Downlink Uplink Reference Signal. 5 ms repetition period. Overview - FDD : Frame Structure Type 1 The highest level view from 36. The frame time for. 𝜇Each subframe consists of 2 slots of 14 OFDM symbols each. Figure 3 shows the frame structure for LTE in FDD mode (Frame Structure Type 1). Thus, the subcarrier and symbol are the frequency and time indices of an RE, respectively. It does not show any structure in frequency domain. OVERVIEW The design of the LTE physical layer (PHY) is heavily influenced by the requirements for high peak transmission rate (100 Mbps DL/50 Mbps UL), spectral. A phone must typically perform the following tasks (Figure 5): Acquire a signal on a given LTE carrier frequency. In TDD mode, the SF is either of type DL, UL or special (Spc). 12 6. The second one is called frame structure type 2 and is defined for TDD mode. Access Procedure & Signaling. 04/02/2023 10 Types of Frame Structure in LTE: • Types of Frame structure in LTE: 3GPP defines two types of frames based on the duplexing scheme used. There are seven different Type 2 frame structures as shown in the figure, which can be changed flexibly. Type 1: used for the LTE FDD mode systems. Fig. 55ns. Check out the Episode 13 of Field Journal to get answers to questions like:LTE protocol structure Transport Channels The physical layer transport channels offer information transfer to MAC and higher layers. Myung 17 Frame Structure • Two radio frame structures defined. Determine frame synchronization and cell identification (cell search procedure) based. The remaining six symbols have a cyclic prefix of length TCP = 144 ⋅ Ts ≈ 4. An FDD LTE radio frame is 10 milliseconds in length, and is divided into 10 subframes of 1 millisecond, which are in turn divided into two slots of 0. - available for PMCH (Physical Multicast Channel) LTE Resource Grid. Bandwidth: LTE supports different bandwidth configurations, such as 1. But anyway good thing to me was that the most important factors in uplink slot is same as the one in the downlink. 5 ms. design, LTE frame structure dedicated some channels for data and they are called data channels while others for control information, known as control channels. In FDD there will be pair of frequencies assigned in the downlink and uplink directions and hence transmissions from multiple subscribes can happen at the same time but on different frequencies as mentioned. ) Precoding Fading Power Control PUCCH. The LTE frame structure for the FDD and TDD schemes was discussed in Chapter 9. Channel Mapping and UE Categories. So if the system. One slot is defined as 14 OFDM symbols, which corresponds to once a frame or one millisecond in LTE. To address these challenges, we propose a novel frame structure design that incorporates several key changes relative to current LTE systems: Flexible TTI duration: The current LTE system uses a fixed transmission time interval (TTI) of one subframe (1 ms). Frame Structure Type 1. A subframe is of 1 msec, A slot is of 0. 5ms and contain 12 subcarriers for each OFDM symbol in frequency domain. To fulfill these requirements, orthogonal frequency division multiplex (OFDM) was selected as the basis for the PHY layer. LTE tutorial videos, articles, and code examples introduce key LTE concepts and effective techniques and workflows for LTE physical layer development including: Waveform generation. Selection of a timing reference (beginning of the frame) b. In TDD there are about 7 frame configurations, based on different DL/UL. Subframes #0 and #5 are always assigned to DL, and subframe #2 is always assigned to UL. Subchannels separation is Δ f =15kHz. This is then divided into a total of 20 individual slots. LTE Frame Structure 5. The figure below shows the structure of the downlink physical channel and downlink physical signals. Similar as most of the previous researches [8, 9, 11, 15, 16], only downlink communication is considered in this work. When data is. 17 Nominal max BW (MHz) 49. LTE frame structure. LTE-V2X PHY-layer Structure 10 LTE frames divided into 1 subframes Channel divided into resource blocks (RBs) 180 kHz RB contains:. 2. In TDD there are about 7 frame configurations, based on different DL/UL. The downlink and uplink frame structure parameters are the same, except that the time-domain underlying symbols in the downlink are OFDM symbols, whereas in the uplink the underlying symbols are SC-FDMA symbols due to the use of different multiple access methods in. Now consider the details of a symbol. C. In LTE TDD, we defined 7 predefined pattern for UL and DL allocation in a radio frame. A total of 504 unique physical layer cell identities are provided. · Time slot size= 0. Last but not least, we provide an overview. Historically, CPRI is mainly designed for 2G/3G and eCPRI is designed for LTE and NR, but it is all up to network infra structure vendors which type of CPRI (CPRI or eCPRI) to use for which radio access technology (i. The Long Term Evolution (LTE, 4G ) standard defined by the 3GPP supports both FDD and TDD Duplex mode. Each radio frame is divided into 10 subframes (each being 1ms long). e. Physical layer. Selection of a timing reference (beginning of the frame) b. LTE protocols in connected or idle mode). As described above, in 5G/NR multiple numerologies (waveform configuration like subframe spacing) are supported and the radio frame structure gets a little bit different depending on the type of the numerology. Read more >> Femtocell tutorial- This tutorial covers femtocell basics including network architecture. 3. The useful symbol time is T u. 5 ms slots and three special fields, DwPTS, GP, and UpPTS. Switching Points . The Input Sampler samples the inputs NDLRB and NCellID and then propagates the values to the subsequent blocks. Each radio frame of length Tf = 307200*Ts = 10 ms consists of two half-frames of length Tf = 153600*Ts = 5 ms each. 2 < LTE Downlink Reference Signal - RE Mapping > Note 1 : The DL Reference Signal (Cell Specific Reference Signal) is mainly determined by Physical. LTE DL Frame Structure in a Nutshell. One subframe consists of two slots each having 0. Each frame is divided into ten equally sized subframes. LTE Frame Structure; LTE channels and mappings; RLC, RRC / NAS, PDSCH, PDCCH, HO; 5G core reference architecture; Towards the end of the 4G LTE course, you will learn in-depth about the LTE MAC Scheduler, LTE EPC nodes and interfaces. Although a slot is a typical unit for transmission upon which scheduling operates, NR enables transmission toThere are two types of frame structure in the LTE standard, Type 1 and Type 2. 1 Numerologies, Frames, Subframes, and Slots 11 4. 12. Here, the idea is to compress the whole transmission chain of waiting for a transmit opportunity and preparing for a transmission, transmitting the data, and finally processing the received data. The fre-quency index of an RE maps to an LTE subcarrier, and its time index maps to an LTE symbol. - available for PMCH (Physical Multicast Channel) LTE Resource Grid. · Radio frame size=. There are two radio frames, each one of 10 ms duration. Type 1, applicable to FDD- Here there are. 5. Based on the review of latest 3GPP documents, this paper describes. Selection of SubCarrier Spacing (SCS) d. A table will be displayed. One resource block has duration of 7 OFDM symbols (0. Each slot can have either 14 OFDM symbols or 12 OFDM symbols based on cyclic prefix type. 5 milliseconds. LTE frame structure is enhanced in 5G New Radio (NR) to support users with highly diverse service requirements for enhanced Mobile Broad Band (EMBB), Massive Machine Type Communications (MTC) and. (ii) Type 2: supports TDD mode. Network Structure . Protocols RACH SIB PAGING MAC RLC PDCP Full Stack Basic Call Idle Mode Multi Cell UE. Type 2: used for the LTE TDD systems. 5 ms 1 subframe = 1 ms #0 #1 #19 Special subframes containing: DwPTS: downlink pilot time slot UpPTS: uplink pilot time slot GP: guard period for TDD operation Possible uplink-downlink configurations (D=Downlink,There are two types of LTE frame structures. Choose a configuration with more “D”s in the frame means greater proportion of Downlink Data (normal for most Internet /ISP applications). Download scientific diagram | LTE frame structure used with FDD from publication: Experimental investigation on target detection and tracking in passive radar using long-term evolution signal. But now, with the introduction of LTE system toolbox [7], the parameters. Some of high level description you can get from this figure would be . 2. frame structure type, number of antennas, number of symbols in PDCCH and the scaling factor Ng. 5 ms duration. Each SI is composed of multiple SIBs. 12. In the LTE standard (E-UTRA Citation 2019), OFDM signals are specified by three parameters, namely, the number of subcarriers or the Fast Fourier. We discuss LTE basics including the LTE frame structure, OFDMA, Resource elements, Resource blocks and Scheduler Resource blocks.