4.2.18 EFAD (Administrative Data)

4.2.18 EF_AD (Administrative Data)

31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

This EF contains information concerning the mode of operation according to the type of USIM, such as normal (to be used by PLMN subscribers for 3GPP network operations), type approval (to allow specific use of the ME during type approval procedures of e.g. the radio equipment), cell testing (to allow testing of a cell before commercial use of this cell), manufacturer specific (to allow the ME manufacturer to perform specific proprietary auto‑test in its ME during e.g. maintenance phases).

It also provides an indication about how some ME features shall work during normal operation as well as information about the length of the MNC, which is part of the International Mobile Subscriber Identity (IMSI) if service n°130 is "not available".

Identifier: ‘6FAD’		Structure: transparent			Mandatory
SFI: ’03’
File size: 4+X bytes			Update activity: low
Access Conditions: READ ALW UPDATE ADM DEACTIVATE ADM ACTIVATE ADM
Bytes	Description			M/O		Length
1	UE operation mode			M		1 byte
2 to 3	Additional information			M		2 bytes
4	length of MNC in the IMSI			M		1 byte
5 to 4+X	RFU			O		X bytes

‑ UE operation mode:

Contents:
mode of operation for the UE

Coding:

Initial value

‑ ’00’ normal operation.

‑ ’80’ type approval operations.

‑ ’01’ normal operation + specific facilities.

‑ ’81’ type approval operations + specific facilities.

‑ ’02’ maintenance (off line).

‑ ’04’ cell test operation.

All other values are RFU

‑ Additional information:

Contents:
additional information depending on the UE operation mode

Coding:

‑ specific facilities (if b1=1 in byte 1):

Byte 2 (first byte of additional information):

RFU (see TS 31.101)

Byte 3 (second byte of additional information):

b1=0: ciphering indicator feature disabled

b1=1: ciphering indicator feature enabled

b2: CSG Display Control bit, see below

b3: ProSe services for Public Safety, see below

b4: extended DRX cycle

b5: 5G ProSe, see below

RFU (see TS 31.101)

b1 is used to control the ciphering indicator feature as specified in TS 22.101 [24].

b2 is used to indicate which CSGs the UE shall display during manual CSG selection. This bit corresponds to the value of OperatorCSGEntries_Only leaf described in TS 24.285 [58]. This bit shall be ignored when service n°92 is not "available".

– b2=0: for every PLMN not included in EF_OCSGL, or for which a CSG display indicator tag is not present, all available CSGs can be displayed without any restriction.

– b2=1: for every PLMN not included in EF_OCSGL or any PLMN for which a CSG display indicator tag is not present, only the available CSGs found in the Operator CSG list shall be displayed.

b3 is used to indicate whether the USIM enables the Public Safety UE to use the ME provisioning parameters for Public Safety usage, in the cases described in TS 24.334 [70].

– b3=0: the ME is not authorized for ProSe services for Public Safety usage (i.e. Direct Discovery and Direct Communication as per TS 24.334 [70]) without contacting the ProSe Function.

– b3=1: the ME is authorized to use the parameters stored in the USIM or in the ME for ProSe services for Public Safety usage, as described in TS 24.334 [70] without contacting the ProSe Function.

b4 is used to indicate whether the UICC polling interval to retrieve proactive commands can be modified (as described in TS 31.101 [11]) or weather the UICC interface can be deactivated (as described in clause 5.1.11) during extended DRX cycle.

– b4=0: the ME is not authorized to modify the polling interval and/or disable the UICC interface during extended DRX cycle.

– b4=1: the ME is authorized to modify the polling interval and/or disable the UICC interface during extended DRX cycle.

b5 is used to indicate whether the USIM enables the UE to use "operator-managed" radio resources, in the cases described in 3GPP TS 23.304 [116].

– b5=0: the UE is not authorized to use "operator-managed" radio resources.

– b5=1: the UE is authorized to use "operator-managed" radio resources.

– ME manufacturer specific information (if b2=1 in byte 1):

Byte 2 (first byte of additional information):

Any value

Byte 3 (second byte of additional information):

Any value

– Length of MNC in the IMSI:

Contents:

The length indicator refers to the number of digits, used for extracting the MNC from the IMSI if service n°130 is "not available" and the value shall be set to 0 if service n°130 is "available".

Coding:

Byte 4:

This value codes the number of digits of the MNC in the IMSI. Only the values ‘0000’, ‘0010’ and ‘0011’ are currently specified, ‘0000’ value is used if service n°130 is "available", all other values are reserved for future use.

RFU (see TS 31.101)