逻辑信道与物理信道的映射关系?

freshman123

逻辑信道在传输信号上应该与物理信道存在一些映射关系，这关系是怎么样的？
信号的转换格式是怎样的？
请大家指点下，谢谢

fredericada

<FONT size=1> </FONT><P 0in 0in 0pt; mso-layout-grid-align: none">在WCDMA中,信道可以从以下三个层次去理解:
<p><P 0in 0in 0pt; mso-layout-grid-align: none"><p><P 0in 0in 0pt; mso-layout-grid-align: none">1) 逻辑信道: 根据传输的内容标识不同的信道. <p><p><P 0in 0in 0pt; mso-layout-grid-align: none"><B>                Logical Channel: </B>A logical channel is an information stream dedicated to the transfer of a specific type of information over the radio interface. <p><p><P 0in 0in 0pt; mso-layout-grid-align: none">2) 传输信道: 根据空口的传输方式来标识 <p><p><P 0in 0in 0pt; mso-layout-grid-align: none">                Different types of transport channels are defined  by how and with which characteristics data is transferred on the physical layer <p><p><P 0in 0in 0pt; mso-layout-grid-align: none">3) 物理信道: 根据实际传输中占有的物理资源(载波频点,信道扩频码,扰码,等)来标识 <p><p><P 0in 0in 0pt; mso-layout-grid-align: none"><B>                Physical Channel: </B>In FDD mode, a physical channel is defined by code, frequency and, in the uplink, relative phase (I/Q). <p><p><P 0in 0in 0pt; mso-layout-grid-align: none">[br]<p align=right><font color=red>+3 RD币</font></p>