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cccb: convert slides to 16:9 + adjust image scaling + fix typos

This commit is contained in:
Harald Welte 2019-09-11 09:49:36 +02:00
parent 623f11f3a1
commit 90fe0e5a89
1 changed files with 17 additions and 17 deletions
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34
2019/cccb-cellular_base_station_technology/cellular_base_station_technology.tex
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@ -1,4 +1,4 @@
\documentclass[11pt]{beamer} \documentclass[aspectratio=169,11pt]{beamer}
\usetheme{default} \usetheme{default}
%\setbeamertemplate{frametitle}{} %\setbeamertemplate{frametitle}{}
\newenvironment{myline} \newenvironment{myline}
@ -137,12 +137,12 @@ What do we learn from this?
\begin{frame}{Simplified Rx/Tx chain} \begin{frame}{Simplified Rx/Tx chain}
\begin{itemize} \begin{itemize}
\item Simplified Receiver chain: \item Simplified Receiver chain:
\digraph[scale=0.30]{rxsimple}{ \digraph[scale=0.38]{rxsimple}{
rankdir=LR; rankdir=LR;
Antenna -> Duplexer -> RF_Filter -> LNA -> Mixer -> BB_Filter -> ADC -> PHY -> L2_L3 Antenna -> Duplexer -> RF_Filter -> LNA -> Mixer -> BB_Filter -> ADC -> PHY -> L2_L3
} }
\item Simplified Transmitter chain: \item Simplified Transmitter chain:
\digraph[scale=0.30]{txsimple}{ \digraph[scale=0.38]{txsimple}{
rankdir=RL; rankdir=RL;
L2_L3 -> PHY -> DAC -> BB_Filter -> Mixer -> PA -> RF_Filter -> Duplexer -> Antenna; L2_L3 -> PHY -> DAC -> BB_Filter -> Mixer -> PA -> RF_Filter -> Duplexer -> Antenna;
} }
@ -153,16 +153,16 @@ What do we learn from this?
\begin{frame}{Even more Simplified Rx/Tx chain} \begin{frame}{Even more Simplified Rx/Tx chain}
\begin{itemize} \begin{itemize}
\item Simplified Receiver chain: \item Even more simplified Receiver chain:
\digraph[scale=0.40]{rxsimple2}{ \digraph[scale=0.45]{rxsimple2}{
rankdir=LR; rankdir=LR;
Antenna -> Mixer [label=RF]; Antenna -> Mixer [label=RF];
Mixer -> ADC [label="Analog Baseband"]; Mixer -> ADC [label="Analog Baseband"];
ADC -> PHY [label="Digital Baseband"]; ADC -> PHY [label="Digital Baseband"];
PHY -> L2_L3 [label="Primitives"]; PHY -> L2_L3 [label="Primitives"];
} }
\item Simplified Transmitter chain: \item Even more simplified Transmitter chain:
\digraph[scale=0.40]{txsimple2}{ \digraph[scale=0.45]{txsimple2}{
rankdir=RL; rankdir=RL;
L2_L3 -> PHY [label="Primitives"]; L2_L3 -> PHY [label="Primitives"];
PHY -> DAC [label="Digital Baseband"]; PHY -> DAC [label="Digital Baseband"];
@ -180,7 +180,7 @@ What do we learn from this?
\begin{columns} \begin{columns}
\column{0.28\linewidth} \column{0.28\linewidth}
\centering \centering
\includegraphics[width=36mm]{RBS2206.jpg} \includegraphics[width=37mm]{RBS2206.jpg}
\column{0.70\linewidth} \column{0.70\linewidth}
The traditional way of building cell sites: The traditional way of building cell sites:
\begin{itemize} \begin{itemize}
@ -197,10 +197,10 @@ What do we learn from this?
\begin{frame}{Slightly less Classic Cell Site} \begin{frame}{Slightly less Classic Cell Site}
\begin{columns} \begin{columns}
\column{0.28\linewidth} \column{0.35\linewidth}
\centering \centering
\includegraphics[width=36mm]{nokia_flexi.jpeg} \includegraphics[width=49mm]{nokia_flexi.jpeg}
\column{0.70\linewidth} \column{0.65\linewidth}
The fist step of logical evolution: The fist step of logical evolution:
\begin{itemize} \begin{itemize}
\item equipment becomes smaller (partial rack) \item equipment becomes smaller (partial rack)
@ -265,7 +265,7 @@ Solution: Instead of moving all equipment up the tower,
\begin{frame}{Base Station split with Radio Heads} \begin{frame}{Base Station split with Radio Heads}
\begin{itemize} \begin{itemize}
\item Incredibly Simplified Receiver chain: \item Incredibly Simplified Receiver chain:
\digraph[scale=0.30]{rxsimple2split}{ \digraph[scale=0.42]{rxsimple2split}{
rankdir=LR; rankdir=LR;
Antenna -> Mixer [label=RF]; Antenna -> Mixer [label=RF];
subgraph cluster_0 { subgraph cluster_0 {
@ -279,7 +279,7 @@ Solution: Instead of moving all equipment up the tower,
} }
} }
\item Incredibly Simplified Transmitter chain: \item Incredibly Simplified Transmitter chain:
\digraph[scale=0.30]{txsimple2split}{ \digraph[scale=0.42]{txsimple2split}{
rankdir=RL; rankdir=RL;
subgraph cluster_0 { subgraph cluster_0 {
label="Baseband Unit"; label="Baseband Unit";
@ -304,7 +304,7 @@ Solution: Instead of moving all equipment up the tower,
\end{frame} \end{frame}
\begin{frame}{Cell Sites with (Remote) Radio Heads} \begin{frame}{Cell Sites with (Remote) Radio Heads}
\includegraphics[width=92mm]{lots-of-radioheads.jpeg} \includegraphics[width=85mm]{lots-of-radioheads.jpeg}
{\tiny Image: Peter Schmidt @33dBm} {\tiny Image: Peter Schmidt @33dBm}
\end{frame} \end{frame}
@ -417,7 +417,7 @@ As digital baseband samples are transmitted over fiber optics
\end{frame} \end{frame}
\begin{frame}{Antennas with many ports} \begin{frame}{Antennas with many ports}
\includegraphics[width=85mm]{multiport-antenna.jpg} \includegraphics[width=80mm]{multiport-antenna.jpg}
\end{frame} \end{frame}
\begin{frame}{Where will it end?} \begin{frame}{Where will it end?}
@ -479,7 +479,7 @@ As digital baseband samples are transmitted over fiber optics
\begin{frame}{Classic 3G back-haul} \begin{frame}{Classic 3G back-haul}
\begin{itemize} \begin{itemize}
\item 3G (UMTS) was specified when ATM was the next hot thing \item 3G (UMTS) was specified when ATM was the next hot thing
\item back-haul of eNodeB is done via ATM \item back-haul of NodeB is done via ATM
\item in reality, often Inverse ATM Multiplex (ATM over 4xE1 ISDN) \item in reality, often Inverse ATM Multiplex (ATM over 4xE1 ISDN)
\item 3GPP at least later adapted specs for IP based transport \item 3GPP at least later adapted specs for IP based transport
\begin{itemize} \begin{itemize}
@ -582,7 +582,7 @@ As digital baseband samples are transmitted over fiber optics
\begin{itemize} \begin{itemize}
\item \url{http://cpri.info/} \item \url{http://cpri.info/}
\item FlexiWCDMA teardown: \url{https://www.youtube.com/watch?v=d5xT4p9FXIw} \item FlexiWCDMA teardown: \url{https://www.youtube.com/watch?v=d5xT4p9FXIw}
\item Ericsson RBS600 teardown: \url{https://www.youtube.com/watch?v=qO127zY3voE} \item Ericsson RBS6000 teardown: \url{https://www.youtube.com/watch?v=qO127zY3voE}
\end{itemize} \end{itemize}
\end{frame} \end{frame}