Multiuser detection of differing data rate signals

Abstract

A first detector receives a received signal and extracts the data signals from the received signal. A hard decision converter converts soft symbols outputted by the first detector into hard symbols. An interference canceller extracts the voice signals from the received signal. A second detector is connected to the output of the interference canceller, and extracts the individual voice signals. The second detector is a different detector type than the first detector.

1 .- 27 . (canceled)  
   
   
       28 . A method for multiuser detection of a received signal, the received signal including real time data and non-real time data, the method comprising the steps of: 
 storing the received signal;    detecting only one of the real time data or the non-real time data signals and extracting the one data signals from the received signal;    outputting the extracted data signals as soft symbols;    converting the soft symbols into hard symbols;    canceling the hard symbols from the stored received signal; and    detecting the other of the real time data or non-real time data signals from the canceled stored received signal, wherein the one and the other detecting steps are performed by different types of detectors.    
   
   
       29 . The method according to  claim 28 , wherein the one data signals is the non-real time data signals and the first detecting step includes using a blind minimum mean square error detector.  
   
   
       30 . The method according to  claim 29 , wherein the second detecting step includes using a matched filter.  
   
   
       31 . The method according to  claim 29 , wherein the second detecting step includes using a RAKE-receiver.  
   
   
       32 . A receiver comprising: 
 an antenna configured to receive a plurality of communication signals of differing power levels, the plurality of communication signals including real time data signals and non-real time data signals;    a first data detection device configured to detect data of the only one of the real time or the non-real time data signals;    an interference canceling device configured to receive the detected data of the one data signals and cancel a contribution of the one data signals from the plurality of communication signals, as an interference canceled signal; and    a second data detection device configured to detect data of an other of the real time or the non-real time data signals from the interference canceled signal; wherein the first data detection device is a different type of data detection device than the second data detection device.    
   
   
       33 . The receiver of  claim 32  wherein the first data detection device comprises a blind minimum means square error data detection device and the one data signals are non-real time data signals.  
   
   
       34 . The receiver of  claim 33  wherein the second data detection device comprises a matched filter.  
   
   
       35 . The receiver of  claim 33  wherein the second data detection device comprises a RAKE-receiver.  
   
   
       36 . A wireless transmit/receive unit (WTRU) comprising: 
 an antenna configured to receive a plurality of communication signals of differing power levels, the plurality of communication signals including real time data signals and non-real time data signals;    a first data detection device configured to detect data of the only one of the real time or the non-real time data signals;    an interference canceling device configured to receive the detected data of the one data signals and cancel a contribution of the one data signals from the plurality of communication signals, as an interference canceled signal; and    a second data detection device configured to detect data of an other of the real time or the non-real time data signals from the interference canceled signal; wherein the first data detection device is a different type of data detection device than the second data detection device.    
   
   
       37 . The WTRU of  claim 36  wherein the first data detection device comprises a blind minimum means square error data detection device and the one data signals are non-real time data signals.  
   
   
       38 . The WTRU of  claim 37  wherein the second data detection device comprises a matched filter.  
   
   
       39 . The WTRU of  claim 37  wherein the second data detection device comprises a RAKE-receiver.  
   
   
       40 . An integrated circuit comprising: 
 an input configured to receive a plurality of communication signals of differing power levels, the plurality of communication signals including real time data signals and non-real time data signals;    a first data detection device configured to detect data of the only one of the real time or the non-real time data signals;    an interference canceling device configured to receive the detected data of the one data signals and cancel a contribution of the one data signals from the plurality of communication signals, as an interference canceled signal; and    a second data detection device configured to detect data of an other of the real time or the non-real time data signals from the interference canceled signal; wherein the first data detection device is a different type of data detection device than the second data detection device.    
   
   
       41 . The integrated circuit of  claim 40  wherein the first data detection device comprises a blind minimum means square error data detection device and the one data signals are non-real time data signals.  
   
   
       42 . The integrated circuit of  claim 41  wherein the second data detection device comprises a matched filter.  
   
   
       43 . The integrated circuit of  claim 41  wherein the second data detection device comprises a RAKE-receiver.