https://en.lntwww.de/index.php?action=history&feed=atom&title=Aufgaben%3AExercise_4.5Z%3A_About_Spread_Spectrum_with_UMTS 2026-07-21T22:52:05Z Revision history for this page on the wiki MediaWiki 1.43.6 https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=56634&oldid=prev 2026-03-16T15:53:45Z

<p>Fix interlanguage link: resolve redirect chain</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:53, 16 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l101">Line 101:</td> <td colspan="2" class="diff-lineno">Line 101:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects^]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects^]]</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[de:Aufgaben:4.<del style="font-weight: bold; text-decoration: none;">5Z_Zur_Bandspreizung_bei_UMTS</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[de:Aufgaben:<ins style="font-weight: bold; text-decoration: none;">Aufgabe </ins>4.<ins style="font-weight: bold; text-decoration: none;">5Z: Zur Bandspreizung bei UMTS</ins>]]</div></td></tr> </table>

Maintenance script https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=55604&oldid=prev 2026-03-16T12:33:40Z

<p>Add German interlanguage link</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:33, 16 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l101">Line 101:</td> <td colspan="2" class="diff-lineno">Line 101:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects^]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects^]]</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[de:Aufgaben:4.5Z_Zur_Bandspreizung_bei_UMTS]]</ins></div></td></tr> </table>

Maintenance script https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=53181&oldid=prev 2023-03-05T13:33:08Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 15:33, 5 March 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l100">Line 100:</td> <td colspan="2" class="diff-lineno">Line 100:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects<ins style="font-weight: bold; text-decoration: none;">^</ins>]]</div></td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-53128:rev-53181:php=table --> </table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=53128&oldid=prev 2023-03-04T17:30:08Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:30, 4 March 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6">Line 6:</td> <td colspan="2" class="diff-lineno">Line 6:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:P_ID1974__Bei_Z_4_5.png|right|frame|Source signal and spread signal]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:P_ID1974__Bei_Z_4_5.png|right|frame|Source signal and spread signal]]</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>With UMTS/CDMA, the so-called "<del style="font-weight: bold; text-decoration: none;">pseudo</del>-noise" <del style="font-weight: bold; text-decoration: none;">modulation </del>is applied&amp;nbsp; <del style="font-weight: bold; text-decoration: none;">(''</del>Direct Sequence Spread Spectrum<del style="font-weight: bold; text-decoration: none;">'' '''DS-SS''')</del>:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>With UMTS/CDMA,<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>the so-called<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>"<ins style="font-weight: bold; text-decoration: none;">Pseudo</ins>-noise <ins style="font-weight: bold; text-decoration: none;">modulation</ins>"<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>is applied<ins style="font-weight: bold; text-decoration: none;">.&amp;nbsp; Or:</ins>&amp;nbsp; <ins style="font-weight: bold; text-decoration: none;">"</ins>Direct Sequence Spread Spectrum<ins style="font-weight: bold; text-decoration: none;">"</ins>:</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*The rectangular digital signal&amp;nbsp; $q(t)$&amp;nbsp; is thereby multiplied by the spreading signal&amp;nbsp; $c(t)$&amp;nbsp; to give the transmitted signal&amp;nbsp; $s(t)$.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*The rectangular digital signal&amp;nbsp; $q(t)$&amp;nbsp; is thereby multiplied by the spreading signal&amp;nbsp; $c(t)$&amp;nbsp; to give the transmitted signal&amp;nbsp; $s(t)$.</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*This is higher in frequency <del style="font-weight: bold; text-decoration: none;">by the spreading factor</del>&amp;nbsp; $<del style="font-weight: bold; text-decoration: none;">J</del>$&amp;nbsp; <del style="font-weight: bold; text-decoration: none;">than</del>&amp;nbsp; $<del style="font-weight: bold; text-decoration: none;">q(t)</del>$, and is referred to as <del style="font-weight: bold; text-decoration: none;">''band spreading''</del>.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"> </ins></div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*At the receiver, the same spreading signal&amp;nbsp; $c(t)$&amp;nbsp; is <del style="font-weight: bold; text-decoration: none;">added </del>in phase synchronism, reversing the <del style="font-weight: bold; text-decoration: none;">band </del>spreading &amp;nbsp; &amp;rArr; &amp;nbsp; <del style="font-weight: bold; text-decoration: none;">''band compression''</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*This is higher in frequency <ins style="font-weight: bold; text-decoration: none;">than</ins>&amp;nbsp; $<ins style="font-weight: bold; text-decoration: none;">q(t)</ins>$&amp;nbsp; <ins style="font-weight: bold; text-decoration: none;">by the spreading factor</ins>&amp;nbsp; $<ins style="font-weight: bold; text-decoration: none;">J</ins>$,<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>and is referred to as<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; "spread spectrum"</ins>.  </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*At the receiver,<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>the same spreading signal&amp;nbsp; $c(t)$&amp;nbsp; is <ins style="font-weight: bold; text-decoration: none;">multiplied </ins>in phase synchronism,<ins style="font-weight: bold; text-decoration: none;">&amp;nbsp; </ins>reversing the <ins style="font-weight: bold; text-decoration: none;"> </ins>spreading <ins style="font-weight: bold; text-decoration: none;">process</ins>&amp;nbsp; &amp;rArr; &amp;nbsp; <ins style="font-weight: bold; text-decoration: none;">"despreading"</ins>.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l98">Line 98:</td> <td colspan="2" class="diff-lineno">Line 100:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects<del style="font-weight: bold; text-decoration: none;">^</del>]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects]]</div></td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-53126:rev-53128:php=table --> </table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=53126&oldid=prev 2023-03-04T17:01:30Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:01, 4 March 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l98">Line 98:</td> <td colspan="2" class="diff-lineno">Line 98:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 Telecommunications Aspects^]]</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>^]]</div></td><td colspan="2" class="diff-side-added"></td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-53096:rev-53126:php=table --> </table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=53096&oldid=prev 2023-03-03T12:27:10Z

<p>Guenter moved page <a href="/Aufgaben:Exercise_4.5Z:_About_Band_Spreading_with_UMTS" class="mw-redirect" title="Aufgaben:Exercise 4.5Z: About Band Spreading with UMTS">Aufgaben:Exercise 4.5Z: About Band Spreading with UMTS</a> to <a href="/Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS" title="Aufgaben:Exercise 4.5Z: About Spread Spectrum with UMTS">Aufgaben:Exercise 4.5Z: About Spread Spectrum with UMTS</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:27, 3 March 2023</td> </tr><tr><td colspan="4" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-53084:rev-53096 --> </table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=53084&oldid=prev 2023-03-02T18:37:58Z

<p></p> <a href="https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&amp;diff=53084&amp;oldid=52184">Show changes</a>

Noah https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=52184&oldid=prev 2023-01-24T15:05:54Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:05, 24 January 2023</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l98">Line 98:</td> <td colspan="2" class="diff-lineno">Line 98:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 <del style="font-weight: bold; text-decoration: none;">Nachrichtentechnische Aspekte</del></div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Examples of Communication Systems: Exercises|^4.3 <ins style="font-weight: bold; text-decoration: none;">Telecommunications Aspects</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>^]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>^]]</div></td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-52177:rev-52184:php=table --> </table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=52177&oldid=prev 2023-01-24T15:02:08Z

<p>Guenter moved page <a href="/Aufgaben:Aufgabe_4.5Z:_Zur_Bandspreizung_bei_UMTS" class="mw-redirect" title="Aufgaben:Aufgabe 4.5Z: Zur Bandspreizung bei UMTS">Aufgaben:Aufgabe 4.5Z: Zur Bandspreizung bei UMTS</a> to <a href="/Aufgaben:Exercise_4.5Z:_About_Band_Spreading_with_UMTS" class="mw-redirect" title="Aufgaben:Exercise 4.5Z: About Band Spreading with UMTS">Aufgaben:Exercise 4.5Z: About Band Spreading with UMTS</a></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:02, 24 January 2023</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Guenter https://en.lntwww.de/index.php?title=Aufgaben:Exercise_4.5Z:_About_Spread_Spectrum_with_UMTS&diff=39214&oldid=prev 2021-05-28T14:37:50Z

<p>Text replacement - &quot;„&quot; to &quot;&quot;&quot;</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:37, 28 May 2021</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6">Line 6:</td> <td colspan="2" class="diff-lineno">Line 6:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:P_ID1974__Bei_Z_4_5.png|right|frame|Quellensignal und Spreizsignal]]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:P_ID1974__Bei_Z_4_5.png|right|frame|Quellensignal und Spreizsignal]]</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Bei UMTS/CDMA wird die so genannte  <del style="font-weight: bold; text-decoration: none;">&amp;bdquo;</del>Pseudo Noise"–Modulation  angewandt&amp;nbsp; (englisch:&amp;nbsp; ''Direct Sequence Spread Spectrum'', &lt;br&gt;abgekürzt &amp;nbsp;'''DS–SS'''):</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Bei UMTS/CDMA wird die so genannte  <ins style="font-weight: bold; text-decoration: none;">"</ins>Pseudo Noise"–Modulation  angewandt&amp;nbsp; (englisch:&amp;nbsp; ''Direct Sequence Spread Spectrum'', &lt;br&gt;abgekürzt &amp;nbsp;'''DS–SS'''):</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Das rechteckförmige Digitalsignal&amp;nbsp; $q(t)$&amp;nbsp; wird dabei mit dem Spreizsignal&amp;nbsp; $c(t)$&amp;nbsp; multipliziert und ergibt das Sendesignal&amp;nbsp; $s(t)$.  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Das rechteckförmige Digitalsignal&amp;nbsp; $q(t)$&amp;nbsp; wird dabei mit dem Spreizsignal&amp;nbsp; $c(t)$&amp;nbsp; multipliziert und ergibt das Sendesignal&amp;nbsp; $s(t)$.  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Dieses ist um den Spreizfaktor&amp;nbsp; $J$&amp;nbsp; höherfrequenter als&amp;nbsp; $q(t)$, und man spricht von &#039;&#039;Bandspreizung&#039;&#039;.  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Dieses ist um den Spreizfaktor&amp;nbsp; $J$&amp;nbsp; höherfrequenter als&amp;nbsp; $q(t)$, und man spricht von &#039;&#039;Bandspreizung&#039;&#039;.  </div></td></tr> <tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l26">Line 26:</td> <td colspan="2" class="diff-lineno">Line 26:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Die Aufgabe bezieht sich meist auf die Seite&amp;nbsp; [[Examples_of_Communication_Systems/Nachrichtentechnische_Aspekte_von_UMTS|Nachrichtentechnische Aspekte von UMTS]].  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Die Aufgabe bezieht sich meist auf die Seite&amp;nbsp; [[Examples_of_Communication_Systems/Nachrichtentechnische_Aspekte_von_UMTS|Nachrichtentechnische Aspekte von UMTS]].  </div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*Zur Berechnung der Chipdauer&amp;nbsp; $T_{\rm C}$&amp;nbsp; wird auf die Theorieseite&amp;nbsp; [[Examples_of_Communication_Systems/UMTS–Netzarchitektur#Physikalische_Kan.C3.A4le|Physikalische Kanäle]]&amp;nbsp; im Kapitel <del style="font-weight: bold; text-decoration: none;">&amp;bdquo;</del>UMTS–Netzarchitektur" verwiesen.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*Zur Berechnung der Chipdauer&amp;nbsp; $T_{\rm C}$&amp;nbsp; wird auf die Theorieseite&amp;nbsp; [[Examples_of_Communication_Systems/UMTS–Netzarchitektur#Physikalische_Kan.C3.A4le|Physikalische Kanäle]]&amp;nbsp; im Kapitel <ins style="font-weight: bold; text-decoration: none;">"</ins>UMTS–Netzarchitektur" verwiesen.  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Dort findet man unter anderem die Information, dass auf dem so genannten&amp;nbsp; &#039;&#039;Dedicated Physical Channel&#039;&#039;&amp;nbsp; (&#039;&#039;&#039;DPCH&#039;&#039;&#039; ) &amp;nbsp;in zehn Millisekunden genau&amp;nbsp; $15 \cdot 2560$ Chips übertragen werden.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>*Dort findet man unter anderem die Information, dass auf dem so genannten&amp;nbsp; &#039;&#039;Dedicated Physical Channel&#039;&#039;&amp;nbsp; (&#039;&#039;&#039;DPCH&#039;&#039;&#039; ) &amp;nbsp;in zehn Millisekunden genau&amp;nbsp; $15 \cdot 2560$ Chips übertragen werden.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>   </div></td></tr> <!-- diff cache key en_mediawiki:diff:1.41:old-39199:rev-39214:php=table --> </table>

Javier