ts_125331v120300p

3GPP TS 25.331 version 12.3.0 Release 12
2108
ETSI TS 125 331 V12.3.0 (2014-10)
- Bad CRC = the number of bad CRC that is required within the latest "Total CRC" received CRCs for the event
to be triggered.
- Pending after trigger = a new event can not be triggered until "Pending after trigger" CRCs have been received,
When a DCH is established, the UE shall begin to count the number of bad CRCs within the last "Total CRC" received
CRCs. No event can be triggered until at least "Total CRC" CRCs have been received. For each new received CRC, the
UE shall compare the number of bad CRCs within the latest "Total CRC" received CRCs with the parameter "Bad
CRC". An event shall be triggered if the number of bad CRCs is equal or larger than "Bad CRC".
At the time when the event is triggered a pending time after trigger timer is started with the length of "Pending after
trigger" CRCs. A new event can not be triggered until Pending after trigger" CRCs have been received. When Pending
after trigger" CRCs have been received the event evaluation start again and a new event can be triggered.
Total CRC
Total CRC
Total CRC
Total CRC
Good CRC
Bad CRC
No reports
No reports
Report 1 Report 2
Pending after trigger Pending after trigger
Report 3
Figure 14.5.2.1-1: Event triggered CRC error reporting
14.6 UE internal measurements
14.6.1 UE internal measurement quantities
For UE internal measurements the following measurement quantities exist:
1. UE transmission (Tx) power, for TDD measured on a timeslot basis.
2. UE received signal strength power (RSSI).
3. UE Rx-Tx time difference (FDD only).
4. T ADV (1.28 Mcps TDD).
14.6.2 UE internal measurement reporting events
In the Measurement reporting criteria field in the Measurement Control messages, the UTRAN notifies the UE of which
events should trigger a measurement report. UE internal measurement reporting events that can trigger a report are
given below. The reporting events are marked with vertical arrows in the figures below. All events can be combined
with time-to-trigger.
NOTE:
The reporting events are numbered 6A, 6B, 6C,.. where 6 denotes that the event belongs to the type UE
internal measurements.
When one measurement identity corresponds to multiple internal events with identical event identities, the UE
behaviour is not defined.
14.6.2.1 Reporting event 6A: The UE Tx power becomes larger than an absolute
threshold
When a UE internal measurement configuring event 6a is set up, the UE shall:
ETSI