Communication methods and systems for multiple wireless transmit/receive units

Abstract

A method, apparatus, and system for multiple wireless transmit/receive units (WTRUs) communicating with a base station are disclosed. A base station, such as an eNB, may assign each WTRU of a plurality of WTRUs a portion of a transmission time interval (TTI) and then send that assignment to each respective WTRU in a control channel. The base station may then send data to one or more WTRUs in their respective assigned portions on a physical downlink shared channel (PDSCH). The portion may be one or a plurality of a time slots. The portion may be a fraction of the TTI.

1 . A base station comprising of:
 a processor, the processor configured to assign each wireless transmit/receive unit (WTRU) of a plurality of WTRUs a portion of a transmission time interval (TTI);   a transceiver operatively coupled to the processor, the transceiver and processor configured to send a first WTRU of the plurality of WTRUs the assignment of the portion of the TTI in a control channel; and   the transceiver and processor further configured to send data to the first WTRU on the assigned portion of the TTI in a physical downlink shared channel (PDSCH).   
     
     
         2 . The base station of  claim 1 , wherein the portion comprises one timeslot within the TTI. 
     
     
         3 . The base station of  claim 1 , wherein the portion comprises a plurality of timeslots within the TTI. 
     
     
         4 . The base station of  claim 1 , wherein the portion comprises a fraction of the TTI. 
     
     
         5 . A wireless transmit/receive unit (WTRU) comprising:
 a processor,   a receiver operatively coupled to the processor, the receiver and processor configured to receive control information including an assignment a portion of a time transmission interval (TTI); and   the receiver and processor further configured to receive data on the assigned portion of the TTI in a physical downlink shared channel (PDSCH).   
     
     
         6 . The WTRU of  claim 5 , wherein the portion comprises one timeslot within the TTI. 
     
     
         7 . The WTRU of  claim 5 , wherein the portion comprises a plurality of timeslots within the TTI. 
     
     
         8 . The WTRU of  claim 5 , wherein the portion comprises a fraction of the TTI. 
     
     
         9 . A method for a wireless transmit/receive unit (WTRU) comprising:
 receiving control information including an assignment of a portion of a time transmission interval (TTI); and   receiving data on the assigned portion of the TTI in a physical downlink shared channel (PDSCH).   
     
     
         10 . The method of  claim 9 , wherein the portion comprises one timeslot within the TTI. 
     
     
         11 . The method of  claim 9 , wherein the portion comprises a plurality of timeslots within the TTI. 
     
     
         12 . The method of  claim 9 , wherein the portion comprises a fraction of the TTI.