8.3.21 Radio Link Parameter Update

25.4233GPPRelease 17TSUTRAN Iur interface Radio Network Subsystem Application Part (RNSAP) signalling

8.3.21.1 General

The Radio Link Parameter Update procedure is executed by the DRNS to update parameters related to HS-DSCH [FDD – or E-DCH or UL CLTD] on a radio link for a UE-UTRAN connection or to update phase reference on a list of the radio links.

This procedure shall use the signalling bearer connection for the relevant UE context.

The Radio Link Parameter Update procedure shall not be initiated if a Prepared Reconfiguration exists, as defined in subclause 3.1.

8.3.21.2 Successful Operation

Figure 26E: Radio Link Parameter Update Indication, Successful Operation

The Radio Link Parameter Update procedure is initiated by the DRNS by sending the RADIO LINK PARAMETER UPDATE INDICATION message to the SRNC.

HS-DSCH related Parameter(s) Updating:

If RADIO LINK PARAMETER UPDATE INDICATION message is used to update the parameters related to HS-DSCH, it contains suggested value(s) of the HS-DSCH related parameter(s) that should be reconfigured on the radio link.

If the DRNS needs to update HS-DSCH related parameters, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including [FDD – HS-DSCH FDD Update Information IE] [TDD – HS-DSCH TDD Update Information IE].

If the DRNS needs to allocate new HS-SCCH Codes, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including HS-SCCH Code Change Indicator IE.

[FDD – If the DRNS needs to allocate new HS-PDSCH Codes, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including HS-PDSCH Code Change Indicator IE.]

[FDD – If the DRNS needs to update the CQI Feedback Cycle k, CQI Feedback Cycle2 k, CQI Cycle Switch Timer, CQI Repetition Factor, ACK-NACK Repetition Factor, CQI Power Offset, ACK Power Offset and/or NACK Power Offset, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including CQI Feedback Cycle k IE, CQI Repetition Factor IE, ACK-NACK Repetition Factor IE, CQI Power Offset IE, ACK Power Offset IE and/or NACK Power Offset IE.]

[TDD – If the DRNS needs to update the TDD ACK-NACK Power Offset the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including TDD ACK NACK Power Offset IE.]

[FDD – If the DRNS needs to update the Precoder weight set restriction , the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Precoder weight set restriction IE.]

[FDD – Secondary Serving HS-DSCH related Parameter(s) Updating:]

[FDD – If RADIO LINK PARAMETER UPDATE INDICATION message is used to update the parameters related to secondary serving HS-DSCH, it contains suggested value(s) of the secondary serving HS-DSCH related parameter(s) that should be reconfigured on the radio link.]

[FDD – If the DRNS needs to update secondary serving HS-DSCH related parameters, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message and include the Additional HS Cell Information RL Param Upd IE.]

– [FDD – If the DRNS needs to allocate new secondary serving HS-SCCH Codes, the DRNS shall include the HS-SCCH Code Change Indicator IE in the HS-DSCH FDD Secondary Serving Update Information IE.]

– [FDD – If the DRNS needs to update the Precoder weight set restriction , the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Precoder weight set restriction IE in the HS-DSCH FDD Secondary Serving Update Information IE.]

[FDD – Phase Reference Handling:]

[FDD – If DRNS needs to update phase reference for the channel estimation for one or several Radio Links, the DRNC shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Phase Reference Update Indicator IE for the concerned RL(s).]

[FDD – E-DCH:]

[FDD – If DRNS needs to update E-DCH related parameters, the DRNC shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including E-DCH FDD Update Information IE.]

[FDD – If the DRNS needs to update the HARQ process allocation for non-scheduled transmission and/or HARQ process allocation for scheduled Transmission, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including the HARQ Process Allocation For 2ms Non-Scheduled Transmission Grant IE for the concerned MAC-d Flows and/or HARQ Process Allocation For 2ms Scheduled Transmission Grant IE.]

[FDD – If the DRNS needs to allocate new E-AGCH Channelisation Code, new E-RGCH/E-HICH Channelisation Code, new E-RGCH Signature Sequence and/or new E-HICH Signature Sequence, the DRNC shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including E-DCH DL Control Channel Change Information IE.]

[FDD – If the DRNS needs to indicate to RNC that the TTI switching has been triggered and confirmed by the UE, the DRNS shall if supported initiate RADIO LINK PARAMETER UPDATE INDICATION message including the TTI Update Indication IE in the E-DCH FDD Update Information IE.]

[FDD – If the DRNS needs to update Additional E-DCH related parameters, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Additional E-DCH Cell Information RL Param Upd IE.]

– [FDD – If the DRNS needs to update the HARQ process allocation for scheduled Transmission, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including the HARQ Process Allocation For 2ms Scheduled Transmission Grant .]

– [FDD – If the DRNS needs to allocate new E-AGCH Channelisation Code, new E-RGCH/E-HICH Channelisation Code, new E-RGCH Signature Sequence and/or new E-HICH Signature Sequence, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Additional E-DCH DL Control Channel Change Information IE.]

[FDD – UL CLTD:]

[FDD – If the DRNS needs to update the local activation state of UL CLTD of the UE in UL CLTD operation, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION including the UL CLTD State Update Information IE.]

[FDD – CPC Recovery:]

[FDD – If the DRNS needs to indicate that the CPC Recovery has been initiated, the DRNC shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including CPC Recovery Report IE.]

[FDD – If the DRNS needs to forward the UE measurement, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including UE Measurement Forwarding IE.]

[FDD – If the DRNS needs to perform the improved synchronized RRC procedures, the DRNS shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including CFN IE.]

8.3.21.3 Abnormal Conditions

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