发射端分集、编码和调制结合空时格码，可以有效地提高信号在无线衰落信道中传输的有效性和可靠性；
Space-time trellis code combining space diversity with code and modulation, can improve efficiency and reliability of communication system in wireless channel efficiently.
WCDMA标准在下行信道传输中采用了称作STTD的开环发射分集方案和两种反馈模式的闭环发射分集方案。
The open loop transmit diversity scheme, named as STTD, and two feedback close loop transmit diversity schemas in downlink channel communication was defined in WCDMA standard.
应用推荐