Paging over a high-speed downlink shared channel

摘要

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.

主权项

1. A method for a wireless transmit/receive unit (WTRU) to facilitate paging in high speed downlink packet access (HSDPA) wireless communications, the method comprising:
receiving, when the WTRU is in one of a Cell Paging Channel (CELL_PCH) and a universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) Registration Area Paging channel (URA_PCH) state, HSDPA associated paging indicator channel (PICH) information elements comprising PICH information; compiling a list of candidate PICHs for HSDPA; determining a value k corresponding to the number of candidates; calculating a selection index equal to:
U_RNTI mod k; where U_RNTI is a universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) radio network transaction identity (U-RNTI) of the WTRU; selecting PICH information from the list of candidate PICHs based on the selection index; receiving a paging indicator over a PICH using the selected PICH information; receiving a high speed downlink shared channel (HS-DSCH) radio network transaction identifier (H-RNTI); and receiving a high speed physical shared channel using the received H-RNTI.