hsupa iub congestion control

HSUPA Iub congestion controlThe HSUPA Congestion Control aims to balance the work load of the RNC introduced by processing of the uplink traffic coming from the UEs. Congestion control for high speed uplink is a critical feature in the sense that the RNC might end up in a situation where it cannot handle all the traffic generated by all the users, although the users are given the maximum transmission speed. Congestion can occur on the transport path to the RNC or internally inside the RNC. In both cases, it is the responsibility of the RNC to take action to reduce the congestion. Whatever the source of congestion, the RNC must send indication to the originator of the excess traffic.For more information on the HSUPA Congestion Control and the usage of counters in parameter optimisation, see Feature RAN992: HSUPA Congestion Control, Feature Description.Counter ID: M1022C69Network element name: DELAY BUILDUP INDICATIONS SENT DUE TO IUB DELAY

Version: 1.0NetAct name: IUB_DELAY_CC_DELAY_IND

Description: The number of "Congestion Indication control frame - delay build-up" messages sent to the BTS due to an Iub delay detected by the Frame protocol.

Updated: When the RNC Frame Protocol entity sends a "Congestion Indication control frame - delay build-up" indication message to the base station and the indication was triggered by congestion detected by the Frame Protocol entity. This counter is updated for all cells in the UE's E-DCH active set controlled by the base station for which the Congestion Indication message was sent. The counter is not updated for E-DCH soft handover branches that are controlled by base stations whose Iub interfaces are not congested because the Congestion Indication message is not sent to them.

Logical type: CumulativeTrigger type: EventSampling interval:

Unit: Integer numberRange: Example values:

Dependencies with other counters:

Operability class:

Related to feature:RAN 992: HSUPA Congestion ControlRelated to standard:

3GPP Measurement name (Clause header):

3GPP Measurement type:

Exceptions to related standard:

Used from release: RN3.0Definition updated in release:

Counter ID: M1022C70Network element name: DELAY BUILDUP INDICATIONS SENT DUE TO HW OVERLOAD

Version: 1.0NetAct name: HW_OVERL_CC_DELAY_IND

Description: The number of "Congestion indication control frame - delay build up" messages sent to the BTS due to the RNC HW overload congestion control functionality.

Updated: When the RNC Frame Protocol entity sends a "Congestion Indication control frame - delay build-up" indication message to the base station and the indication was triggered by congestion detected by the HW overload congestion control functionality.




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Counter ID: M1022C71Network element name: FRAME LOSS INDICATIONS SENT DUE TO TRAFFIC LOSS

Version: 1.0NetAct name: IUB_LOSS_CC_FRAME_LOSS_IND

Description: The number of "Congestion indication control frame - frame loss" messages sent to the BTS due to Iub traffic loss detected by the Frame protocol.

Updated: When the RNC Frame Protocol entity sends a "Congestion Indication control frame - frame loss" indication message to the base station due to Iub traffic loss detected by the Frame protocol. This counter is updated for all cells in the UE's E-DCH active set controlled by the base station for which the Congestion Indication was sent. The counter is not updated for E-DCH soft handover branches that are controlled by base stations whose Iub interfaces are not congested because the Congestion Indication message is not sent to them.




Operability class:






Counter ID: M1022C72Network element name: FRAME LOSS INDICATIONS SENT DUE TO IUB DELAY

Version: 1.0NetAct name: IUB_DELAY_CC_FRAME_LOSS_IND

Description: The number of "Congestion indication control frame - frame loss" messages sent to the BTS due to Iub delay detected by the Frame protocol.

Updated: When the RNC Frame Protocol entity sends a "Congestion Indication control frame - frame loss" indication message to the base station due to Iub delay detected by the Frame protocol. This counter is updated for all cells in the UE's E-DCH active set controlled by the base station for which the Congestion Indication was sent. The counter is not updated for E-DCH soft handover branches that are controlled by base stations whose Iub interfaces are not congested, because the Congestion Indication message is not sent to them.




Operability class:






Counter ID: M1022C73Network element name: FRAME LOSS INDICATIONS SENT DUE TO HW OVERLOAD

Version: 1.0NetAct name: HW_OVERL_CC_FRAME_LOSS_IND

Description: The number of "Congestion indication control frame - frame loss" messages sent to the BTS due to RNC HW overload.

Updated: When the RNC Frame Protocol entity sends a "Congestion Indication control frame - frame loss" indication message to the base station due to RNC HW overload. This counter is updated for all cells in the UE's E-DCH active set controlled by the base station for which the Congestion Indication message was sent. The counter is not updated for E-DCH soft handover branches that are controlled by base stations whose Iub interfaces are not congested because the Congestion Indication message is not sent to them.




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Counter ID: M1022C74Network element name: SUCCESSFUL E-DCH FP BRANCH SETUP

Version: 1.0NetAct name: SUCC_EDCH_FP_BRANCH_SETUP

Description: The number of successful E-DCH Iub Frame Protocol branch setups.

Updated: When a new E-DCH Frame Protocol branch is successfully established in Iub. The counter is not updated when a softer handover branch is added because a new FP connection is not created in that case.




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Counter ID: M1022C75Network element name: MISSED E-DCH FP FRAMES

Version: 1.0NetAct name: MISSED_EDCH_FRAMES

Description: The number of E-DCH frames that are not received at all or are discarded due to errors.

Updated: When an E-DCH FP frame is detected to be missing or discarded as erroneous.


Unit: FP framesRange: Example values:


Operability class:






Counter ID: M1022C76Network element name: DELAYED E-DCH FP FRAMES

Version: 1.0NetAct name: DELAYED_EDCH_FRAMES

Description: The number of delayed E-DCH FP frames; this includes frames that are delayed over the trigger value used by the congestion control algorithm (that is, delay is above the DelayThresholdMin).

Updated: When an E-DCH frame is received and detected as delayed over the trigger value used by the congestion control algorithm.




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Counter ID: M1022C77Network element name: SUCCESSFULLY RECEIVED E-DCH FP FRAMES

Version: 1.0NetAct name: SUCC_REC_EDCH_FRAMES

Description: The number of successfully received E-DCH FP frames, including all other frames except the frames counted as missed or delayed.

Updated: When an E-DCH frame is received successfully and in time.




Operability class:






DN99581291Id: 0900d805806ec1c32010 Nokia Siemens Networks

hsupa iub congestion control

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