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2 Transport aspects
1. US_TRAFFIC_TRIGR (LinkState, QFUA)
2. DS_TRAFFIC_TRIGR (LinkState, QFDA)
The trigger criteria for transitioning from a higher rate (power) state to a lower rate (power) state, are
based on the aggregate downstream queue arrival (QADA) and the upstream data stream metric (QAUA).
The LRCC-O aggregates the QADA and QAUA for the trigger period (TRIGR_PERIOD) and compares with
trigger thresholds (TRIGR_THRESH) according to the threshold criteria in Table Z.11. The LRCC-O shall
request a transition from L0 to L2.1N or from L2.1B to L2.2 if and only if the related threshold criteria are
met for both QADA and QAUA over a trigger persistency period (TRIGR_PERSIST).
The trigger criteria for transitioning from a lower rate (power) state to a higher rate (power) state, are
based on the aggregate downstream queue fill (QFDA) and the aggregate upstream queue fill (QFUA). The
LRCC-O aggregates the QFDA and QFUA for the trigger period (TRIGR_PERIOD) and compares with trigger
thresholds (TRIGR_THRESH) according to the threshold criteria in Table Z.11. The LRCC-O shall request a
transition from L2.1N to L0 or from L2.2 to L2.1B if and only if the related threshold criteria are met for
QFDA or QFUA or both over a trigger persistency period (TRIGR_PERSIST).
Each valid transition is either positive (increasing traffic rate) or negative (reducing traffic rate). Trigger
criteria for the valid traffic driven link state transitions of Table Z.10 are shown in Table Z.11.
Table Z.11 – Trigger criteria for the valid traffic driven link state transitions
Conditional state
Trigger Type Threshold criteria Persistency criteria
change
L0_L2.1N negative QADA, QAUA < TRUE for period > Both DS and US
L0_L2.1N_TRIGR_ L0_L2.1N_TRIGR_PERSIST_QA trigger TRUE
THRESH_QA
L2.1N_L0 positive QFDA, QFUA > TRUE for period > DS or US or both
L2.1N_L0_TRIGR_ L2.1N_L0_TRIGR_PERSIST_QF trigger TRUE
THRESH_QF
L2.1B_L2.2 negative QADA, QAUA < TRUE for period > Both DS and US
L2.1B_L2.2_TRIGR_ L2.1B_L2.2_TRIGR_PERSIST_QA trigger TRUE
THRESH_QA
L2.2_L2.1B positive QFDA, QFUA > TRUE for period > DS or US or both
L2.2_L2.1B_TRIGR_ L2.2_L2.1B_TRIGR_PERSIST_QF trigger TRUE
THRESH_QF
Z.6.2.3.2 Battery operation status driven link state transitions
Valid battery operation status driven link state transitions are shown in Table Z.12.
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