8.3.19 Radio Link Parameter Update

25.4333GPPRelease 17TSUTRAN Iub interface Node B Application Part (NBAP) signalling

8.3.19.1 General

The Radio Link Parameter Update procedure is excuted by the Node B when the update of HS-DSCH [FDD – or E-DCH or UL CLTD] related radio link parameter values are needed on the Node B side. With this procedure, Node B can suggest some HS-DSCH [FDD – or E-DCH or UL CLTD] related Radio Link Parameter values to RNC.

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

8.3.19.2 Successful Operation

Figure 48: Radio Link Parameter Update Indication, Successful Operartion

The Node B initiates the Radio Link Parameter Update procedure by sending the RADIO LINK PARAMETER UPDATE INDICATION message to the CRNC. The message contains suggested value(s) of the HS-DSCH [FDD – or E-DCH] related parameter(s) that should be reconfigured on the radio link(s).

If the Node B needs to update HS-DSCH related parameters, the Node B 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 Node B needs to allocate new HS-SCCH Codes, the Node B shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including HS-SCCH Code Change Indicator IE.

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

[FDD – If the Node B 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 Node B 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.]

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

[FDD – If the Node B needs to update Secondary Serving HS-DSCH related parameters, the Node B shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Additional HS Cell Information RL Param Upd IE.]

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

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

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

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

[FDD – If the Node B needs to update the HARQ process allocation for non-scheduled transmission and/or HARQ process allocation for scheduled Transmission, the Node B 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 Node B 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 Node B shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including E-DCH DL Control Channel Change Information IE.]

[FDD – If the Node B needs to indicate to RNC that the TTI switching has been triggered and confirmed by the UE, the Node B 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 Node B needs to update Additional E-DCH related parameters, the Node B shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Additional E-DCH Cell Information RL Param Upd IE.]

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

– [FDD – If the Node B 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 Node B shall initiate RADIO LINK PARAMETER UPDATE INDICATION message including Additional E-DCH DL Control Channel Change Information IE.]

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

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

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

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

8.3.19.3 Abnormal Conditions

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