WCDMA Optimization Events

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WCDMA EVENTS Event s Description Comments Intrafrequenc y reporting events for the FDD mode 1a A Primary CPICH enters the reporting range Addition a cell into active set. 1b A primary CPICH leaves the reporting range Removal a cell from active set. 1c A non-active primary CPICH becomes better than an active primary CPICH Replacement of a cell within the active set. 1d Change of best cell in the active set Change the best cell. 1e A Primary CPICH becomes better than an absolute threshold 1f A Primary CPICH becomes worse than an absolute threshold 1j A non-active E-DCH but active DCH primary CPICH becomes better than an active E-DCH primary CPICH Intrafrequenc y reporting events for the TDD mode 1g Change of best cell (TDD) Used in TDD Mode. 1h Timeslot ISCP below a certain threshold (TDD) Used in TDD Mode. 1i Timeslot ISCP above a certain threshold (TDD) Used in TDD Mode. Interfrequenc y reporting events 2a Change of best frequency 2b The estimated quality of the currently used frequency is below a certain threshold and the estimated quality of a non-used frequency is above a certain threshold. Inter-frequency handover. 2c The estimated quality of a non-used frequency is above a certain threshold 2d The estimated quality of the currently used frequency is below a certain threshold Enter compressed mode, start measuring neighbor cells on other frequencies (inter-frequency or inter- RAT) triggered by low DL signal. 2e The estimated quality of a non-used frequency is below a certain threshold 2f The estimated quality of the currently used frequency is above a certain threshold Leave compressed mode. Intersystem reporting events 3a The estimated quality of the currently used UTRAN frequency is below a certain threshold and the estimated quality of the other system is above a certain Inter-RAT handover.

description

UMTS events and how to optimize them

Transcript of WCDMA Optimization Events

WCDMA EVENTS

WCDMA EVENTS

EventsDescriptionComments

Intrafrequency

reporting

events for the

FDD mode1aA Primary CPICH enters the reporting rangeAddition a cell into active set.

1bA primary CPICH leaves the reporting rangeRemoval a cell from active set.

1cA non-active primary CPICH becomes better than an active primary CPICHReplacement of a cell within the active set.

1dChange of best cell in the active setChange the best cell.

1eA Primary CPICH becomes better than an absolute threshold

1fA Primary CPICH becomes worse than an absolute threshold

1jA non-active E-DCH but active DCH primary CPICH becomes better than an active E-DCH primary CPICH

Intrafrequency

reporting

events for the

TDD mode1gChange of best cell (TDD)Used in TDD Mode.

1hTimeslot ISCP below a certain threshold (TDD)Used in TDD Mode.

1iTimeslot ISCP above a certain threshold (TDD)Used in TDD Mode.

Interfrequency

reporting

events2aChange of best frequency

2bThe estimated quality of the currently used frequency is below a certain threshold and the estimated quality of a non-used frequency is above a certain threshold.Inter-frequency handover.

2cThe estimated quality of a non-used frequency is above a certain threshold

2dThe estimated quality of the currently used frequency is below a certain thresholdEnter compressed mode, start measuring neighbor cells on other frequencies (inter-frequency or inter-RAT) triggered by low DL signal.

2eThe estimated quality of a non-used frequency is below a certain threshold

2fThe estimated quality of the currently used frequency is above a certain thresholdLeave compressed mode.

Intersystem

reporting

events3aThe estimated quality of the currently used UTRAN frequency is below a certain threshold and the estimated quality of the other system is above a certain threshold.Inter-RAT handover.

3bThe estimated quality of other system is below a certain threshold

3cThe estimated quality of other system is above a certain threshold

3dChange of best cell in other system

Traffic-volume

reporting events4aTransport Channel Traffic Volume becomes larger than an absolute threshold

4bTransport Channel Traffic Volume becomes smaller than an absolute threshold

Quality

reporting events5aA predefined number of bad CRCs is exceeded

UE internal

measurement

reporting events6aThe UE Tx power becomes larger than an absolute thresholdEnter compressed mode, triggered by high UE power level.

6bThe UE Tx power becomes less than an absolute thresholdLeave compressed mode, triggered by resolution of 6a.

6cThe UE Tx power reaches its minimum value

6dThe UE Tx power reaches its maximum value

6eThe UE RSSI reaches the UE's dynamic receiver range

6fThe UE Rx-Tx time difference for a RL included in the active set becomes larger than an absolute thresholdFDD

6fThe time difference indicated by TADV becomes larger than an absolute threshold1.28 Mcps TDD

6gThe UE Rx-Tx time difference for a RL included in the active set becomes less than an absolute thresholdFDD

UE positioning

reporting events7aThe UE position changes more than an absolute threshold

7bSFN-SFN measurement changes more than an absolute threshold

7cGPS time and SFN time have drifted apart more than an absolute threshold