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diff --git a/text/protokolyLPWAN.tex b/text/protokolyLPWAN.tex index ea47f6d..5cf2cea 100644 --- a/text/protokolyLPWAN.tex +++ b/text/protokolyLPWAN.tex @@ -233,16 +233,18 @@ In \ac{3GPP} Release 16, redundant transmission for high-reliability communicati \section{DECT NR+ standard for 5G IoT networks} \subsection{Plain DECT} -Stary DECT a IP telefony, pasmo, HW vrstva, NR a teorie prenosovych -rychlosti -https://www.nordicsemi.com/Products/Wireless/DECT-NR?lang=en\#infotabs -https://www.nordicsemi.com/Products/Wireless/DECT-NR/Applications?lang=en\#infotabs -https://www.nordicsemi.com/Products/Wireless/DECT-NR/Related-publications?lang=en\#infotabs -https://blog.nordicsemi.com/getconnected/could-dect-nr-democratize-massive-iot-in-5g -https://docs.nordicsemi.com/bundle/ps\_nrf9161/page/dect.html\#ariaid-title4 -https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/dect-nr-a-technical-dive-into-non-cellular-5g -https://blog.nordicsemi.com/getconnected/the-next-step-for-m2m-communications +\ac{DECT} is a digital wireless technology standard primarily known for cordless telephones, though its applications have expanded to some not foreseen use-cases (professional wireless audio solutions such as walkie-talkies and wireless audio on music concerts). -\subsection{DECT NR+} \label{dectdescrition}
\ No newline at end of file +\ac{DECT} is an open standard that operates in a dedicated frequency range, typically 1880-1900 MHz in Europe, Asia, Australia, New Zealand, and South America, and 1920-1930 MHz in the US. This dedicated spectrum helps minimize interference from other wireless technologies like Wi-Fi and Bluetooth. + +\ac{DECT} uses a combination of \ac{TDMA}, \ac{FDMA}, and \ac{TDD}. This means the radio spectrum is divided into frequency channels (10 frequency channels) and time slots (24 of 10 ms slots per one frame), allowing multiple conversations to occur simultaneously on the same frequency band without interference. A typical \ac{DECT} system can support up to 12 duplex speech channels per base station frame. \cite{plaindectdesc} + +% https://www.etsi.org/technologies/dect + +\subsection{DECT NR+} \label{dectdescrition} + + \cite{dectnrdesc} + +% https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/dect-nr-a-technical-dive-into-non-cellular-5g
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