8.5.56 Actions related to HSPA_RNTI_STORED_PCH variable (FDD and 1.28 Mcps TDD only)

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

In CELL_PCH state, the variable HSPA_RNTI_STORED_PCH shall be set to TRUE only when all the following conditions are met:

1> the UE is in CELL_PCH state or the UE after state transition enters CELL_PCH state if the variable HSPA_RNTI_STORED_PCH is determined according to subclause 8.2.2.3 or 8.3.1.6; and

1> the UE supports E-DCH transmission in CELL_FACH state and Idle mode; and

1> the UE supports HS-DSCH reception in CELL_FACH state; and

1> the IE "HS-DSCH common system information" is included in system information block type 5 or 5bis; and

1> the IE "Common E-DCH system info" is included in system information block type 5 or 5bis; and

1> the IE "HS-DSCH paging system information" is not included in system information block type 5 or 5bis or the UE does not support HS-DSCH reception in CELL_PCH and URA_PCH state; and

1> the RBs have the multiplexing option with transport channel type "HS-DSCH" for the DL and transport channel type "E-DCH" in the UL; and

1> variable H_RNTI is set; and

1> variable E_RNTI is set; and

1> IE "New C-RNTI" is included in the received message if the variable HSPA_RNTI_STORED_PCH is determined according to subclause 8.2.2.3 or 8.3.1.6, or variable C_RNTI is set if the variable HSPA_RNTI_STORED_PCH is determined according to subclause 8.1.1.6.5.

In URA_PCH state, the variable HSPA_RNTI_STORED_PCH shall be set to TRUE only when all the following conditions are met:

1> the UE supports URA_PCH with seamless transition; and

1> the UE is in URA_PCH state or the UE after state transition enters URA_PCH state if the variable HSPA_RNTI_STORED_PCH is determined according to subclause 8.2.2.3 or 8.3.1.6; and

1> the UE supports E-DCH transmission in CELL_FACH state and Idle mode; and

1> the UE supports HS-DSCH reception in CELL_FACH state; and

1> the IE "HS-DSCH common system information" is included in system information block type 5 or 5bis; and

1> the IE "Common E-DCH system info" is included in system information block type 5 or 5bis; and

1> the RBs have the multiplexing option with transport channel type "HS-DSCH" for the DL and transport channel type "E-DCH" in the UL; and

1> variable H_RNTI is set; and

1> variable E_RNTI is set; and

1> IE "New C-RNTI" is included in the received message if the variable HSPA_RNTI_STORED_PCH is determined according to subclause 8.2.2.3 or 8.3.1.6.

If any of the above conditions is not met and the variable HSPA_RNTI_STORED_PCH is set to TRUE, the UE shall:

1> set the variable HSPA_RNTI_STORED_PCH to FALSE.

If the variable HSPA_RNTI_STORED_PCH is set to TRUE:

1> if the UE has uplink RLC data PDU or uplink RLC control PDU on RB1 or upwards to transmit: or

1> if the UE is requested to move into CELL_FACH state by paging type 1 as described in subclause 8.1.2.3, UE shall:

2> if in URA_PCH state (for FDD), the uplink RLC size has changed since the last time the UE entered URA_PCH state:

3> perform a cell update procedure, according to subclause 8.3.1, using the cause "uplink data transmission".

2> else:

3> move to CELL_FACH state and initiate the measurement report procedure as specified in subclause 8.4.2;

3> set the variable HSPA_RNTI_STORED_PCH to FALSE;

3> stop timer T319 if it is running;

3> restart the timer T305 if it is set to any value other than "infinity";

3> determine the value for the READY_FOR_COMMON_EDCH variable and take the corresponding actions as described in subclause 8.5.47;

3> determine the value for the COMMON_E_DCH_TRANSMISSION variable and take the corresponding actions as described in subclause 8.5.46;

3> for FDD, determine the value for the READY_FOR_COMMON_ERGCH variable and take the corresponding actions as described in subclause 8.5.75;

3> not prohibit periodical status transmission in RLC;

3> configure the Enhanced Uplink in CELL_FACH state and Idle mode as specified in subclause 8.5.45 for FDD and 8.5.45a for 1.28 Mcps TDD;

3> start to receive HS-DSCH according to the procedure in subclause 8.5.36.