Paging over a high-speed downlink shared channel

Abstract

An apparatus and methods are provided for paging in a HSDPA connected mode CELL_PCH or URA_PCH state. Preferably, a WTRU is configured to select various PICH information that is broadcast by a base station. The WTRU is preferably configured to receive paging messages, based on the selected PICH information. In one embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH, a HS-SCCH, and a HS-PDSCH. In another embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH and a HS-PDSCH. In both embodiments, a time delay parameter is preferably used so that the WTRU may listen for either the HS-SCCH or HS-PDSCH for a period of time and return to a sleep mode if no paging message is received.

What is claimed is: 
     
         1 . A method implemented by a network entity to facilitate paging of a wireless transmit/receive unit (WTRU) for high speed downlink packet access (HSDPA) wireless communications, the method comprising:
 sending, via a broadcast, system information indicating a delay between reception of a paging indicator and reception of a message;   sending, from the network entity, HSDPA associated paging indicator channel (PICH) information elements comprising PICH information;   sending, during one or more paging occasions of the WTRU, a paging indicator over a PICH; and   sending a message on a high speed physical downlink shared channel (HS-PDSCH), wherein a maximum delay between the reception of the paging indicator and the reception of the message is pre-determined.   
     
     
         2 . A network entity configured for high speed downlink packet access (HSDPA) wireless communications with a wireless transmit/receive unit (WTRU), comprising
 a transmit/receive unit and a processor configured to:
 send, via a broadcast, system information indicating a delay between reception of a paging indicator and reception of a message; 
 send HSDPA associated paging indicator channel (PICH) information elements comprising PICH information; 
 send, during one or more paging occasions, the paging indicator over a PICH using the selected PICH information; and 
 send the message on a high speed physical downlink shared channel (HS-PDSCH), wherein a maximum delay between the receptions of the paging indicator and the message is pre-determined. 
   
     
     
         3 . The network entity of  claim 2 , wherein the network entity is configured to:
 send a common high speed downlink shared channel (HS-DSCH) radio network transaction identity (H-RNTI).   
     
     
         4 . A method implemented by a network entity to facilitate paging of a wireless transmit/receive unit (WTRU) for high speed downlink packet access (HSDPA) wireless communications, the method comprising:
 sending, via a broadcast, system information indicating a delay between reception of a paging indicator and reception using a high speed shared channel;   sending, from a base station, HSDPA associated paging indicator channel (PICH) information elements comprising PICH information;   sending, during paging occasions, the paging indicator over a PICH;   sending a high speed downlink shared channel (HS-DSCH) radio network transaction identity (H-RNTI); and   sending the high speed shared channel, wherein a maximum delay between the reception of the paging indicator and the reception using the high speed shared channel is pre-determined.   
     
     
         5 . A network entity configured for high speed downlink packet access (HSDPA) wireless communications with wireless transmit/receive unit (WTRU), comprising:
 a transmit/receive unit and a processor configured to:
 send, via a broadcast, system information indicating a delay between reception of a paging indicator and reception using a high speed shared channel; 
 send HSDPA associated paging indicator channel (PICH) information elements comprising PICH information; 
 send, during paging occasions, the paging indicator over a PICH; 
 send a high speed downlink shared channel (HS-DSCH) radio network transaction identity (H-RNTI); and 
 send a high speed shared channel, wherein a maximum delay between the reception of the paging indicator and the reception using the high speed shared channel is pre-determined.