sim card overview
TRANSCRIPT
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SIM Cards Overview
Kiran Koona
Apr 12, 2023
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Contents
Abbreviations Types of Cards SIM Card Memory Architecture SIM Card File Structure RUM- Classifications NV Vs RUIM PRL USIM UICC Vs ICC
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Abbreviations
SIM: Subscriber Identity Module USIM: Universal Subscriber Identity Module RUIM: Removable User Identity Module ICC: Integrated Circuit Card UICC: Universal Integrated Circuit Card OMH: Open Mobile Handset ISIM: IMS SIM NV : Non Volatile PRL: Preferred Roaming List GSM: Global System for Mobile Communications UMTS: Universal Mobile Telecommunications CDMA: Code Division Multiple Access IMS: IP Multimedia Subsystem
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Types of cards
ICC UICC
SIM-- Single IMSI USIM Dual IMSI CSIM
ISIM RUIM-- “Single”--CDMA RUIM “Combo”--CDMA+GSM SIM
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SIM
Subscriber Identity Module SIM-- Single IMSI Dual IMSI (Multiple Subscription, Useful for Business needs)
Polarization Mark, Chipset Mark (ID) SIM card was made in 1991 by Giesecke & Devrien (Munich) to Finnish wireless network operator Radiolinja Size: 32K,64K and 128K.
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ICCID
Integrated circuit card identifier (ICC-ID) Each SIM is internationally identified by its ICC-ID. ICC-IDs are stored in the SIM cards and are also engraved or printed
on the SIM card body during a process called personalization. The ICC-ID is defined by the ITU-T recommendation E.118. A 19 digits long including a single check digit calculated using
the Luhn algorithm.
Eg: 89 91 15 100 000000011 8 Tele CC MNC Vendor S.No Checksum
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IMSI
International Mobile Subscriber Identity Unique Value across all the operators through out the globe 15- digit number Indicates the Home Network of the Subscriber All the Subscription details will be saved in the HLR against IMSI
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Types
Native(old) and Java (For Changing the card Parameters
via OTA) ID-1: 85.60 mm × 53.98 mm x 0.76 mm Permanently fit in End device
Plug-in Width: 25mm, Height: 15mm. Dual IMSI: SIM having Multiple Profiles Proactive: SIM which can Initiate commands to the ME. Use: Sending IMEI or ESN to the network.
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Memory Architecture
Flexible Architecture Similar to all the types of cards ‘3F': Master File; ‘7F': 1st level Dedicated File; '5F': 2nd level Dedicated File; '2F': Elementary File under the Master File; 6F': Elementary File under a 1st level Dedicated File; '4F': Elementary File under 2nd level Dedicated File.
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File Structure
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File Structure DF: GSM
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Master File
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Telecom Directory
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GSM Directory
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EF- File (Eg: ICCID)
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Permanent Vs Dynamic SIM Card Data
Permanent Dynamic
SIM card type IC card identification - serial number of card SIM service table - list of services subscribed to IMSI CHV1( PIN1) and CHV2 (PIN2) PUK - Pin unblocking key Authentication key Ki and A3, A5, and A8 algorithms ADM keys
Location Information TMSI, LAI, LA update timer (t3212), Ciphering key Kc and sequence number BCCH information (ARFCN,MCC and MNC) List of carrier frequencies for cell selection during handover and call setup List of blocked PLMNs (FPLMNs) HPLMN search timer
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RUIM
Removable User Identity Module
Non OMH OMH1. Operator specific card 1. Can be used with any CDMA 2. Browser and DUN settings compatible targets has to be written on to target (NV mode) 2. Multiple profiles: Browse, MMS, DUN and LBS etc.3. Simple PRL 3. PRL: Concatenated PRL
4. Hybrid mode (CDMA+EVDO)
5. Prioritized Profiles4. Combo: CDMA+GSM 6. Combo: CDMA+GSM
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NV Vs RUIM
NV RUIM
Non Volatile PRL (SID,NID) will be saved on the targetESN of the Handset will be sent to the Network Browser and DUN settings on to target ESN Tracking:
Removable Identity Module PRL (SID,NID) will be saved on the card ESN of the card will be sent to the Network Browser and DUN settings on to card (OMH only)
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PRL
Legacy– 1X only Hybrid– Concatenated
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USIM Vs SIM
USIM SIM UMTS-SIM Universal Subscriber Identity Module Global Phone Book & Hidden Phone Book (Bank account no's) APN settings can be written directly on to the card MMS can be stored on to the card Extended Phone book (256K) Backward compatible with 2G-GSM technology Operator Logo can be stored on the card More secured: Milenage and kausami Alog’s
GSM-SIM Subscriber Identity Module Global Phone Book NA NA Limited Phone book (32K or 64K)compatible with 3G also Can’t store Images A5, A3 and A8 algo’s are not very secured
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UICC
Universal Integrated card A single card on which all applications can be placed (USIM,CSIM,RUIM and SIM) 3G, 3G+ card
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UICC
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UICC Vs ICC
UICC ICC
Universal ICC Can have multiple Applications of Similar Kind Can have 2 USIMs/SIMs A single card: USIM+ISIM+CSIM+SIM etc Used for 2G, 3G and 3G+ techs
Integrated Circuit Card Single profile of similar kind Single Application (USIM or IM SIM or RUIM or USIM Used for 2G and 3G only
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CSIM Vs RUIM
CSIM RUIM
3G, 3G+ Application runs on UICC
2G and 3G runs on ICC and UICC
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STK and DSTK
1) STK: SIM Tool Kit
Request can be answered through SMSC Gateway
2) DSTK: Dynamic SIM Tool Kit Request can be answered through SMSC Gateway WIB PULL WIB Push Updating Parameters OTA Sending GPRS settings.
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References
GSM 11.11 - Specification of the Subscriber Identity Module - Mobile Equipment (SIM - ME) interface
GSM 11.14 - Specification of the SIM Application Toolkit for the Subscriber Identity Module - Mobile Equipment (SIM - ME) interface
UMTS 31.111 - Universal Subscriber Identity Module (USIM) Application Toolkit (USAT)
ITU-T E.118 - The International Telecommunication Charge Card. 2006 ITU-T
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Thank You