A CDMA subscriber identity module (CSIM) is an application to support
CDMA2000 phones that runs on a
UICC, with a file structure derived from the
R-UIM card. By porting the application to the
UICC (Universal Integrated Circuit Card), a card with CSIM,
SIM, and
USIM can operate with all major cellular technologies worldwide. The CSIM application allows users to change phones by simply removing the smart card from one mobile phone and inserting it into another mobile phone or broadband telephony device supporting the
CDMA2000 radio interface.
[C.S0065-B v2.0. ''cdma2000 Application on UICC for Spread Spectrum Systems''. 3GPP2. 2011. http://www.3gpp2.org/Public_html/specs/C.S0065-B_v2.0_CSIM.pdf .][UICC-Terminal interface Physical and Logical Characteristics for cdma2000 Spread Spectrum Systems. 3GPP2. 2010. http://www.3gpp2.org/Public_html/specs/C.S0074-A_v1.0_UICC-100625.pdf .]
CSIM application file system
The CSIM application contains a file system with a number of parameters needed to operate on
cdmaOne
Interim Standard 95 (IS-95) was the first ever CDMA-based digital cellular technology. It was developed by Qualcomm and later adopted as a standard by the Telecommunications Industry Association in TIA/EIA/IS-95 release published in 1995. Th ...
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CDMA2000 ("CDMA") networks. Each parameter, or a group of related parameters, is specified with a unique identifier with an implicit or explicit length, and is considered a separate Elementary File (EF). The following examples are taken from the 3GPP2 specification.
* Encryption keys, provisioned by the operator
* Phone number
* Call counts
*
Short Message Service parameters
* Received Short Messages (255 bytes maximum per message)
*
IMSI (international mobile subscriber identifier)
*
TMSI (temporary mobile subscriber identifier, for position security)
*
UIMID (hardware identifier). It will be a pseudo (hashed) value if
EUIMID is in use.
*
EUIMID, either short form (based on
MEID
A mobile equipment identifier (MEID) is a globally unique number identifying a physical piece of CDMA2000 mobile station equipment. The number format is defined by th3GPP2 report S.R0048but in practical terms, it can be seen as an IMEI but with ...
) or long form (based on
ICCID
A typical SIM card (mini-SIM with micro-SIM cutout)
A GSM mobile phone">Global System for Mobile Communications">GSM mobile phone
iPhone_6s.html"_;"title="T-Mobile_nano-SIM_card_with_NFC_capabilities_in_the_SIM_tray_of_an_iPhone_6s">T-Mobile_ ...
)
*
ICCID
A typical SIM card (mini-SIM with micro-SIM cutout)
A GSM mobile phone">Global System for Mobile Communications">GSM mobile phone
iPhone_6s.html"_;"title="T-Mobile_nano-SIM_card_with_NFC_capabilities_in_the_SIM_tray_of_an_iPhone_6s">T-Mobile_ ...
. Present even if it is not used as
EUIMID.
*
MEID
A mobile equipment identifier (MEID) is a globally unique number identifying a physical piece of CDMA2000 mobile station equipment. The number format is defined by th3GPP2 report S.R0048but in practical terms, it can be seen as an IMEI but with ...
(hardware identifier)
* Analog (
AMPS) operational parameters
*
CDMA2000 home identifiers, such as
SID and NID
*
CDMA2000 zone-based registration parameters, telling the handset to register when it changes to a new operator-defined zone (
SID/NID)
*
CDMA2000 distance-based registration parameters, telling the handset to register when it travels a certain distance (each
CDMA2000 transmitter emits its GPS location)
* Random parameters (slot cycle index) to use during CSMA access probes
* List of services available. If a service is not indicated as available in the CSIM, the mobile equipment shall not select this service. Examples include "Call Control", "SMS", "BCMCS Broadcast", "IP Location", etc. If a service is not in this table, the handset will not provide the service.
* Multimode System Selection (MMSS) parameters
References
{{cdma
Smart cards
Code division multiple access