HARQ-ACK与CQI,PCI三者间的关系

1、WCDMA的TYPE  CQI有两种，Type A可以用于支持两个数据流或单个数据流。Type B是单数据流的，它只是用于支持一个数据流。信息结构方面，只依靠HS-DPCCH来进行反馈。当使用单数据流时，ACK/NACK的编码与之前是一样的。但是当双数据流时将会对两个数据流的ACK/NACK进行联合编码来提升性能。基站将基于调度信息来对格式进行盲检测.。
2、MIMO uplink control channel support
Also the uplink control channel for HSDPA operation is affected by MIMO, i.e. the HSDPCCH
(High Speed Dedicated Physical Control Channel). In addition to CQI
reporting as already defined from 3GPP release 5 onwards, PCI reporting for
precoding feedback needs to be introduced as described above. Channel coding is
done separately for the composite precoding control indication (PCI) / channel quality
indication (CQI) and for HARQ-ACK (acknowledgement or negative acknowledgement
information). Figure 2 shows the principle.