20.8 Cell reselection when C1 (serving cell) < 0 for 5 s

3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS

20.8.1 Definition

void

20.8.2 Conformance requirement

1. At least every 5 s the MS shall calculate the value of C1 and C2 for the serving cell and recalculate C1 and C2 values for non serving cells (if necessary). The MS shall then check whether:

i) The path loss criterion (C1) for current serving cell falls below zero for a period of 5 s. This indicates that the path loss to the cell has become too high. 3GPP TS 05.08, subclause 6.6.2.

2. While camped on a cell of the selected PLMN ("camped normally"), the MS may need to select a different cell ("normal cell reselection" state). The following events trigger a cell reselection:

(i) The path loss criterion parameter C1 (see subclause 3.6) indicates that the path loss to the cell has become too high. 3GPP TS 03.22, subclause 4.5.

20.8.3 Test purpose

1. To verify that the MS meets conformance requirement 1.

2. To verify that the MS meets conformance requirement 2.

20.8.4 Method of test

20.8.4.1 Initial conditions

Parameters changed from Default values table 20.1.

Parameter

Carrier 1

Carrier 2

Carrier 3

Carrier 4

Carrier 5

Carrier 6

RF Signal Level

(dBV emf() / dBm)

63 / -50

33 / -80

OFF

OFF

OFF

OFF

RXLEV_ACCESS_MIN (dBV emf() / dBm)

43 / -70

23 / -90

CRO

30 dB

TO

0

PT

0

C1

20

10

C2

50

10

NOTE: With BS_PA_MFRMS = 5 (default value), the averaging time of the MS on the serving cell BCCH is 5,9 s.

20.8.4.2 Procedure

a) The SS activates the carriers. The MS is not paged on carrier 1. The SS monitors carriers 1 and 2 for RA requests from the MS.

b) The MS is switched on.

c) The SS reduces signal level on carrier 1 to -80 dBm / 33 dBV emf() for 4 s. Then, the SS raises the level back to -50 dBm / 63 dBV emf(). (C1 becomes -10 dB and C2, 20 dB during this period).

d) The SS reduces signal level on carrier 1 to -80 dBm / 33 dBV emf()

20.8.5 Test requirements

1) After step b), there shall be no access on carrier 1 or carrier 2, within 50 s.

2) After step c), there shall be no access on carrier 2 within 30 s.

3) After step d), the MS shall access on carrier 2 within 20 s.