Shulou(Shulou.com)06/03 Report--

Recently, Korean pine has launched a series of 5G free live courses for you. The last one was taught by Ai Guo teacher. During the live broadcast, everyone actively interacted in the group and responded very well. The next course will come soon! Today, let's preview the live broadcast of this issue: 5G band division and frequency point calculation. I believe that after preview, you will definitely get into the state quickly in the live broadcast, and you will benefit more from listening to the lecture.

1. 5G band

Increasing bandwidth is the most direct way to increase capacity and transmission rate. At present, the maximum bandwidth of 5G will reach 400MHz. Considering the current frequency occupation, 5G will have to use high frequency to communicate.

3GPP protocol defines the 5G target spectrum from Sub6G (FR1) to millimeter wave (FR2). Among them, FR1 is the core band of 5G, and the spectrum resources near 3.5G (also known as C band) are used as the golden band of 5G deployment. Because of its high frequency spectrum and fast attenuation, FR2, as an auxiliary band of 5G, is used to improve the rate in hot spots.

The 5G spectrum FR1 defined by the 3GPP protocol is as follows, which is partially merged, split and added compared with the 4G LTE band. SUL (Auxiliary Uplink) is used to decouple uplink and uplink to improve uplink edge coverage.

Second, 5G frequency point calculation

3GPP protocol defines the 5G target spectrum from Sub6G (FR1) to millimeter wave (FR2). Among them, FR1 is the core band of 5G, and the spectrum resources near 3.5G (also known as C band) are used as the golden band of 5G deployment. Because of its high frequency spectrum and fast attenuation, FR2, as an auxiliary band of 5G, is used to improve the rate in hot spots. 3GPP defines Global raster (global frequency point grid, represented by Δ FGlobal). The higher the frequency band, the larger the grid, which is used to calculate the 5G frequency point number. Unlike LTE, it is no longer necessary to look up the table according to the band number used and the corresponding starting frequency.

3. Lecturer introduction

This live broadcast is still taught by Mr. Ai Guo. Mr. Ai has 18 years of ICT experience and 9 years of customer training delivery experience. He is a 5G expert lecturer and a senior training lecturer for Huawei / ZTE manufacturers, focusing on GSM/UMTS/LTE/5G training and course development. Deliver mobile / Unicom / telecom 5G network specifications, training and innovative project management training.

The above is the relevant content of this issue of live broadcast, the editor is just a simple introduction, a more detailed explanation or wait until the studio to learn with you! During the live broadcast, the teacher will take you to understand the division of 5G frequency band, the calculation of community center frequency and SSB center frequency in 5G frequency point calculation, as well as the frequency band allocation of domestic operators.

The live broadcast of this issue will be from 20:00 to 21:00 next Wednesday. Scan the code and sign up for free! Remember to watch it in time, don't miss the wonderful content!

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