8.5.39 PICH selection for HSDPA based paging (FDD and 1.28 Mcps TDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

For FDD, when the IE "HS-DSCH paging system information" is included in System Information Block type 5 or System Information Block type 5bis and the UE is in UTRAN in CELL_PCH or URA_PCH state, the UE shall select the PICH according to the following rules:

1> compile a list of candidate PICH for HSDPA from IE(s) "HSDPA associated PICH info" in the order of appearance in System Information Block type 5 or System Information Block type 5bis;

1> select a PICH from the list of candidate PICHs based on U-RNTI as follows:

"Index of selected HSDPA associated PICH" = U_RNTI value mod K,

where K is equal to the number of candidate PICHs for HSDPA.

For 1.28 Mcps TDD, when the IE "PICH for HS-DSCH list" is included in the IE "HS-DSCH paging system information" in System Information Block type 5 and the UE is in CELL_PCH or URA_PCH state, and the variable HS_DSCH_RECEPTION_GENERAL is set to TRUE, the UE shall select the PICH according to the following rules:

1> compile a list of candidate PICH for HSDPA from IE(s) "HSDPA associated PICH info" in the order of appearance in System Information Block type 5;

1> select a PICH from the list of candidate PICHs based on U-RNTI as follows:

"Index of selected HSDPA associated PICH" = U_RNTI value mod K,

where K is equal to the number of candidate PICHs for HSDPA.