Anritsu MT8820C - 6.2. Cell Reselection

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Cell Reselection 6.2.
This chapter outlines cell reselection and explains the operation procedure.
After completing location registration to a cell, the UE searches for the cell with stronger Rx sensitivity than that of
the registered cell based on the criteria of cell reselection. When a cell fulfills the cell reselection criteria, the UE
executes reselection to that cell.
Cell Selection Criterion 6.2.1.
Srxlev and Squal are used for evaluation of cell selection and reselection and the following criteria must be fulfilled
for each standard.
6.2.1.1. E-UTRAN Case
Srxlev > 0 AND Squal > 0
Srxlev = Q
rxlevmeas
- (Q
rxlevmin
+ Q
rxlevminoffset
) -
Pcompensation
Squal = Q
qualmeas
- (Q
qualmin
+ Q
qualminoffset
)
Srxlev
Cell selection RX level value (dB)
Squal
Cell selection quality value (dB)
Q
rxlevmeas
Measured cell RX level value (RSRP)
Q
qualmeas
Measured cell quality value (RSRQ)
Q
rxlevmin
Minimum required RX level in cell (dBm)
Q
qualmin
Minimum required quality level in cell (dB)
Q
rxlevminoffset
Offset to signalled Q
rxlevmin
taken into account in Srxlev evaluation as result of
periodic search for higher-priority PLMN while camped normally in VPLMN.
Q
qualminoffset
Offset to signalled Q
qualmin
taken into account in Squal evaluation as result of
periodic search for higher-priority PLMN while camped normally in VPLMN.
Pcompensation
max(P
EMAX
- P
PowerClass
, 0) (dB)
P
EMAX
Maximum TX power level UE may use when transmitting on uplink in cell
(dBm) defined as P
EMAX
in [TS 36.101].
P
PowerClass
Maximum RF output power of UE (dBm) according to UE power class as
defined in [TS 36.101].
Since the MT8821C does not transmit Q
qualm
in of SystemInformationBlockType1, the UE applies the value of negative
infinity for Q
qualmin
. Therefore Squal > 0 is always satisfied.
- Refer to the Inter-RAT Cell Reselection criteria (6.2.3) for comparison with the MT8821C settings.
- These criteria are defined in 3GPP TS36.304 5.2.3.2.