Method and apparatus for paging group handling

Abstract

A method and apparatus for paging group handling includes grouping wireless transmit/receive units (WTRUs) into a paging group. The paging group is assigned a paging occasion, and an existence of a page is indicated to the WTRUs.

1 . A method for determining paging frames for a wireless transmit/receive unit (WTRU), the method comprising:
 deriving a first value from a second value modulo a third value, wherein the second value is derived from an international mobile subscriber identification (IMSI) of the WTRU and the third value is derived from a discontinuous reception (DRX) cycle of the WTRU;   deriving a fourth value from dividing a fifth value by the third value;   determining paging frames from the first value and the fourth value; and   monitoring, by the WTRU, for pages in the determined paging frames.   
     
     
         2 . The method of  claim 1  wherein the WTRU is a long term evolution (LTE) WTRU. 
     
     
         3 . The method of  claim 1  wherein the paging frames are referenced to system frame numbers. 
     
     
         4 . The method of  claim 1  further comprising determining paging occasions based on the determined paging frames. 
     
     
         5 . The method of  claim 1  wherein the WTRU is in an idle mode. 
     
     
         6 . The method of  claim 1  wherein the WTRU is in discontinuous reception in frames other than the paging frame. 
     
     
         7 . The method of  claim 1  wherein the DRX cycle of the WTRU is different than the DRX cycle of other WTRUs. 
     
     
         8 . A wireless transmit/receive unit (WTRU) comprising:
 a processor, operatively coupled to a transmitter and a receiver, configured to derive a first value from a second value modulo a third value, wherein the second value is derived from an international mobile subscriber identification (IMSI) of the WTRU and the third value is derived from a discontinuous reception (DRX) cycle of the WTRU;   the processor further configured to derive a fourth value from dividing a fifth value by the third value;   the processor further configured to derive paging frames based on the first value and the fourth value; and   the processor and the receiver are configured to monitor for pages in the derived paging frames.   
     
     
         9 . The WTRU of  claim 8  wherein the WTRU is a long term evolution (LTE) WTRU. 
     
     
         10 . The WTRU of  claim 8  wherein the paging frames are referenced to system frame numbers. 
     
     
         11 . The WTRU of  claim 8  wherein the processor is further configured to determine paging occasions based on the determined paging frames. 
     
     
         12 . The WTRU of  claim 8  wherein the WTRU is in an idle mode. 
     
     
         13 . The WTRU of  claim 8  wherein the WTRU is in discontinuous reception in frames other than the paging frame. 
     
     
         14 . The WTRU of  claim 8  wherein the DRX cycle of the WTRU is different than the DRX cycle of other WTRUs. 
     
     
         15 . A network device comprising:
 a processor configured to derive a first value from a second value modulo a third value, wherein the second value is derived from an international mobile subscriber identification (IMSI) of a wireless transmit/receive unit (WTRU) and the third value is derived from a discontinuous reception (DRX) cycle of the WTRU;   the processor further configured to derive a fourth value from dividing a fifth value by the third value;   the processor further configured to derive paging frames based on the first value and the fourth value; and   the processor further configured to page the WTRU in the derived paging frames.   
     
     
         16 . The network device of  claim 15  wherein the network device is a long term evolution (LTE) network device. 
     
     
         17 . The network device of  claim 15  wherein the paging frames are referenced to system frame numbers. 
     
     
         18 . The network device of  claim 15  wherein the process is further configured to determine paging occasions based on the determined paging frames. 
     
     
         19 . The network device of  claim 15  wherein the WTRU is in an idle mode.