Screens

MS Information / Signaling

You must enter an Authentication Key (Ki). If no Ki is entered, a default value of 0 is used.

When an authentication request occurs, the BS SRES generated by the Agilent 8922M/S should match the MS SRES received from the mobile station.

 

 

Partial Authentication Mode requires that you enter a RANDom

 

 

number and the associated Kc for a particular SIM. The MS SRES

 

 

from the mobile station will be displayed, but no BS SRES will be

 

 

generated by the Agilent 8922M/S.

2. Ciphering

This field selects the ciphering mode of the mobile station and the Agilent 8922M/S

 

during the next call made.

 

Choices

Off results in no ciphering signal.

 

 

Enabled (Special Option H05 only) sends a ciphering mode

 

 

message and enables ciphering. (If the Authentication Mode is

 

 

Full-64 or Full- 54, MSRES and BSRES must match for the call to

 

 

proceed and enable ciphering).

 

 

Disabled sends a ciphering mode message, and disables ciphering.

3.IMSI Attach/Detach

This field allows you to select whether or not the mobile automatically performs a location update after synchronizing to the BCH, regardless of whether the cell attributes are the same as those stored by the mobile. This allows the mobile phone to report its IMSI as part of the camping operation.

4.

Kc

This field is only used if Special Option H05 is fitted. It displays the Ciphering Key

 

 

(Kc) generated by the Agilent 8922M/S when the Authentication Mode is Full.

 

 

If the Authentication Mode is Partial or None, you must enter Kc into this field.

 

 

The Agilent 8922M/S will use all 64 bits from this field. Entries into the Kc field

 

 

must account for any truncation of bits that may be done by the mobile station.

 

 

Example: If the mobile station truncates 10 bits, resulting in a 54-bit Kc, enter a

 

 

hexadecimal number in the Agilent 8922M/S Kc field that correctly positions the 54

 

 

bits that will be used, inserting 0’s where necessary.

5.

Last LAI

These fields display the mobile station’s LAI (Local Area Identification) after the

 

 

last location update.

6.

Location

This area allows you to adjust the serving cell location information.

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Agilent Technologies 8922M, S GSM manual Ciphering, Imsi Attach/Detach, Last LAI, Location