Rohde & Schwarz 1094.0006.50, Operating Manual

Page: 79 / 374

CTS55 Getting Started With Manual Test
1094.0006.55 6.5 E-6
Explanations:
h
Location Update
The mobile is requested to make a Location Update on the control channel. By the Location Update,
the base station is informed that a specific mobile has been switched on in its area and is ready to
make and receive calls. If the mobile is already switched on and "registered" when the test is started,
it will indicate "service" and wait. In this case, the mobile is synchronised to a near-by base station.
Switch the mobile off and on again.
i
Analogue RF Power Indicator
The analogue bar in the CTS display indicates whether the CTS is receiving RF power of the mobile
phone. The indicator features a fast reaction time and a hold function so that even short pulses are
detected reliably and indicated. This is particularly useful if the mobile phone does not perform a
Location Update or a call setup. In this case, it is possible to determine immediately whether the
mobile is transmitting or not; e.g. there may be a problem in signalling or in the modulation.
j
Location Update not Successful
If the mobile does not attempt to perform a Location Update, it is possible that the network simulated
by the CTS does not correspond to that searched for by the mobile phone according to the SIM card
used. In this case, the parameters can be matched in the network menu.
k
Subscriber Number
The international subscriber number or IMSI (International Mobile Subscriber Identity) is read from
the SIM card. It consists of three fields:
•
A three-digit Mobile Country Code (MCC) used to indicate the "HOME" country of the card.
•
A two-digit Mobile Network Code (MNC) used to indicate the "HOME" network.
•
The Mobile Subscriber Identification Number (IMSI), which may be up to ten digits long, used to
clearly identify a subscriber within a network.
The values for the Rohde & Schwarz test SIM card are: 001 01 0000000001.
cb
Equipment Id.
The Equipment Id. or IMEI (International Mobile Equipment Identity) is stored in the mobile hardware.
It consists of four fields:
•
Type Approval Code (TAC), six digits, allocated by type approval authorities.
•
Final Assembly Code (FAC), two digits, identifies the manufacturer.
•
Serial Number (SNR), six digits, unique number within TAC and FAC.
•
Spare (SP), one digit, not yet used.
cc
Mobile Power Class
All mobile phones belong to a particular power class which indicates the maximum output power
available from the GSM mobiles:
Power Class GSM900 GSM1800 / GSM1900
1 --- 30 dBm
2 39 dBm 24 dBm
3 37 dBm 36 dBm / 33 dBm
4 33 dBm ---
5 29 dBm ---
cd
Mobile Station Details
The MS Details button will indicate to the user if the Mobile Station is capable of supporting Extended
GSM frequencies and / or is Dual Band (900 / 1800 MHz).