WiMax系统有如下特性：
“在WiMAX系统中,下行链路采用TDM数据流,在上行链路采用TDMA方式,即每个客户端只有在分配给自己的时隙内发送数据。”
这就涉及到TDM和TDMA的不同。
TDM: Time Division Multiplex 时分多路复用
TDMA: Time Division Multiple Access 时分多址接入 相同点是两者都是将时间分为小的time slot。
不同点在于，TDM把time slot用在multiplexing，TDMA把time slot用在multiple access。
据说用英文搜索“TDM, TDMA, difference”，得到的第一条信息就是：
The main difference between tdm and tdma (also fdm/fdma, etc) is that with tdm (also fdm, etc.) the signals multiplexed (i.e. sharing a resource) come from the same node, whereas for tdma (also fdm, etc.) the signals multiplexed come from different sources/transmitters. This is the reason why we use tdm for downlink (forward link) and tdma for uplink (reverse link).
“在WiMAX系统中,下行链路采用TDM数据流,在上行链路采用TDMA方式,即每个客户端只有在分配给自己的时隙内发送数据。”
这就涉及到TDM和TDMA的不同。
TDM: Time Division Multiplex 时分多路复用
TDMA: Time Division Multiple Access 时分多址接入 相同点是两者都是将时间分为小的time slot。
不同点在于，TDM把time slot用在multiplexing，TDMA把time slot用在multiple access。
据说用英文搜索“TDM, TDMA, difference”，得到的第一条信息就是：
The main difference between tdm and tdma (also fdm/fdma, etc) is that with tdm (also fdm, etc.) the signals multiplexed (i.e. sharing a resource) come from the same node, whereas for tdma (also fdm, etc.) the signals multiplexed come from different sources/transmitters. This is the reason why we use tdm for downlink (forward link) and tdma for uplink (reverse link).