td问题,学这个的帮忙解答解答

zjs928

<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">1 .</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">在</span><span lang="EN-US"><font face="Times New Roman">nodeB</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">侧，由发射向接收转换的保护间隔是</span><span lang="EN-US"><font face="Times New Roman">75 us,</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">由此推算出基站的覆盖半径是</span><span lang="EN-US"><font face="Times New Roman">11</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">公里</span><span lang="EN-US"><font face="Times New Roman">.</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">保护间隔 怎么能决定覆盖半径，想不过来！</font></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US"><font face="Times New Roman">2. td-scdma</font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">如何通过</span><span lang="EN-US"><font face="Times New Roman">midamble </font></span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: &quot;Times New Roman&quot;;">完成信道估计，测量，以及上行同步的保持。</span></p><p>小的不才，刚学，路过知道的麻烦讲解讲解，谢过谢过</p>

[此贴子已经被作者于2007-3-17 14:19:36编辑过]