Method and apparatus for multiple carrier utilization in wireless communications

Abstract

Methods and apparatus for multiple carrier utilization in wireless communications are disclosed. These methods include multiple carrier activation/deactivation, multiple carrier discontinuous transmission (DTX) and discontinuous reception (DRX) activation/deactivation and operations, and multiple carrier acknowledgment/negative acknowledgement feedback. The methods include provisions for joint multiple carrier activation and deactivation and joint DTX and DRX activation and deactivation of multiple carriers.

1 . A method for activating/deactivating multiple carriers, comprising:
 receiving an activation/deactivation message, wherein the activation/deactivation message comprises activation/deactivation command information and carrier information;   determining from the activation/deactivation message at least one carrier from the multiple carriers; and   acting on the at least one carrier based on the activation/deactivation message.   
   
   
       2 . The method as in  claim 1 , wherein carrier information is a carrier index. 
   
   
       3 . The method as in  claim 1 , wherein the activation/deactivation message applies to a group of the multiple carriers. 
   
   
       4 . The method as in  claim 3 , wherein the group is determined from at least one of all supplementary carriers, all supplementary carriers in a predetermined frequency band, all downlink supplementary carriers, all downlink supplementary carriers associated with a given downlink anchor carrier, all downlink carriers in a particular frequency band, all downlink non-anchor carriers, all carriers that are part of a predetermined group of carriers, all carriers that are part of a group of carriers having a same radio network temporary identifier. 
   
   
       5 . The method as in  claim 1 , wherein a number represented by the activation/deactivation message indicates the at least one carrier. 
   
   
       6 . The method as in  claim 1 , wherein a carrier carrying the activation/deactivation message indicates the at least one carrier. 
   
   
       7 . The method as in  claim 1 , wherein the activation/deactivation message comprises a predetermined order type that indicates the at least one carrier. 
   
   
       8 . The method as in  claim 1 , wherein the activation/deactivation message is a shared control channel order. 
   
   
       9 . The method as in  claim 1 , wherein the activation/deactivation message applies to carriers that are in a frequency band over which the activation/deactivation message was received. 
   
   
       10 . The method as in  claim 1 , wherein the activation/deactivation message comprises order type reuse with order mapping for indicating the at least one carrier. 
   
   
       11 . The method as in  claim 1 , wherein the activation/deactivation command information and carrier information is mapped to predetermined carriers. 
   
   
       12 . A method for handling discontinuous reception (DRX) or discontinuous transmission (DTX) for multiple carriers, comprising:
 receiving DRX/DTX configuration parameters applicable to a predetermined group of the multiple carriers; and   configuring for DRX/DTX operation.   
   
   
       13 . The method as in  claim 12 , further comprising:
 receiving an activation/deactivation message;   determining from the activation/deactivation message at least one carrier from the multiple carriers; and   acting on the at least one carrier based on the activation/deactivation message.   
   
   
       14 . The method as in  claim 12 , wherein the activation/deactivation message is applicable to a group of the multiple carriers. 
   
   
       15 . A wireless transmit/receive unit (WTRU) comprising:
 a receiver configured to receive an activation/deactivation message, wherein the activation/deactivation message comprises activation/deactivation command information and carrier information;   a processor configured to determine from the activation/deactivation message at least one carrier from the multiple carriers; and   the processor further configured to act on the at least one carrier based on the activation/deactivation message.   
   
   
       16 . The WTRU as in  claim 15 , wherein carrier information is a carrier index. 
   
   
       17 . The WTRU as in  claim 15 , wherein the activation/deactivation message applies to a group of the multiple carriers. 
   
   
       18 . A wireless transmit/receive unit (WTRU) comprising:
 a receiver configured to receive discontinuous reception (DRX)/discontinuous transmission (DTX) configuration parameters applicable to a predetermined group of the multiple carriers; and   a processor configured to configure DRX/DTX operation.   
   
   
       19 . The WTRU as in  claim 18 , further comprising:
 the receiver further configured to receive an activation/deactivation message;   the processor further configured to determine from the activation/deactivation message at least one carrier from the multiple carriers; and   the processor further configured to act on the at least one carrier based on the activation/deactivation message.   
   
   
       20 . The WTRU as in  claim 18 , wherein the activation/deactivation message is applicable to a group of the multiple carriers.