Joint Transmission (JT) Application in the Frequency Division Duplex (FDD) Mode
Nana Li · Communications technology · 2007
In the TD-SCDMA system of the 3G radio standard,Joint Detection is ranked one of key technologies. However the computational complexity of JD is high,and hard to increase the system capacity,especially for the downlink. To overcome the above described drawbacks,P.W.Baier and other researchers propose a novel multi-user transmission scheme for the downlink of TD-CDMA termed joint transmission (JT). This paper discusses the application of JT technology in the FDD system,and proposes a new solution: Through feedback signal,channel pre-estimation is accomplished at the base station.