Metrology for 5G link adaptation and signal-to-interference-plus-noise ratio

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F21%3AN0000027" target="_blank" >RIV/00177016:_____/21:N0000027 - isvavai.cz</a>
Result on the web
<a href="https://digital-library.theiet.org/content/books/10.1049/pbte099e_ch2" target="_blank" >https://digital-library.theiet.org/content/books/10.1049/pbte099e_ch2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1049/PBTE099E_ch2" target="_blank" >10.1049/PBTE099E_ch2</a>

Result language
angličtina
Original language name
Metrology for 5G link adaptation and signal-to-interference-plus-noise ratio
Original language description
Before a mobile terminal device transmits uplink data to or receives downlink data from the base station it has established a connection with, the quality of this connection/channel needs to be quantified, usually via the channel quality indicator (CQI). This is reported to the base station by the mobile terminal and it will determine the rate at which data can be transmitted as well as the type of modulation scheme that should be used. This will inherently depend on how high the signal-to-interference-plus-noise ratio (SINR) is at the mobile terminal such that a higher SINR will result in a higher CQI. Prior to the roll out of fifth-generation (5G) wireless mobile networks, the CQI was determined by the mobile terminal. In 5G systems, on the other hand, where massive multiple input–multiple output (mMIMO) is used, the link adaptation is not an individual user problem anymore but a multi-user one (based on all the users within a cell served by a given base station), which relies upon the need for each mobile terminal to reliably evaluate its SINR and report back a correct corresponding CQI to the base station.
Czech name
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Czech description
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Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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