WO2021056381A1 - Initialisation de carte à circuit intégré universelle (uicc) pour un accès à des services de réseau - Google Patents

Initialisation de carte à circuit intégré universelle (uicc) pour un accès à des services de réseau Download PDF

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Publication number
WO2021056381A1
WO2021056381A1 PCT/CN2019/108392 CN2019108392W WO2021056381A1 WO 2021056381 A1 WO2021056381 A1 WO 2021056381A1 CN 2019108392 W CN2019108392 W CN 2019108392W WO 2021056381 A1 WO2021056381 A1 WO 2021056381A1
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WIPO (PCT)
Prior art keywords
integrated circuit
circuit card
universal integrated
access
wireless device
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Application number
PCT/CN2019/108392
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English (en)
Inventor
Meng Liu
Jian Li
Original Assignee
Qualcomm Incorporated
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Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2019/108392 priority Critical patent/WO2021056381A1/fr
Publication of WO2021056381A1 publication Critical patent/WO2021056381A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality

Definitions

  • the present disclosure generally relates to methods and systems for accessing network services on a wireless device. More specifically, the present disclosure relates to accessing shareable universal integrated circuit card (UICC) files.
  • UICC universal integrated circuit card
  • Some designs of mobile communications/wireless devices include a single universal integrated circuit card (UICC) , multiple universal integrated circuit cards, or multiple subscriber identity module (SIM) cards.
  • the cards store user identity information for multiple subscriptions that enable users to access multiple separate mobile telephony networks.
  • Some of the UICCs e.g., embedded UICCs (eUICCs)
  • eUICCs embedded UICCs
  • a UICC may be removable or implemented within memory of mobile communications devices.
  • the information stored in a UICC may enable mobile communications devices to communicate with a variety of different types of mobile telephony networks.
  • mobile telephony networks include third generation (3G) , fourth generation (4G) , long term evolution (LTE) , fifth generation (5G) , time division multiple access (TDMA) , code division multiple access (CDMA) , CDMA 2000, wideband CDMA (WCDMA) , global system for mobile communications (GSM) , single-carrier radio transmission technology (1xRTT) , and universal mobile telecommunications systems (UMTS) .
  • Each subscription enabled by a UICC or SIM may utilize a particular radio access technology (RAT) to communicate with its respective network.
  • RAT radio access technology
  • FIGURE 1 shows a wireless device communicating with a wireless communications system.
  • FIGURE 2 shows a block diagram of the wireless device in FIGURE 1, according to an aspect of the present disclosure.
  • FIGURE 3 is a process flow diagram of a method for accessing a universal integrated circuit card file on a wireless device, according to aspects of the present disclosure.
  • FIGURE 4A is a process flow diagram of a method for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • FIGURE 4B is a process flow diagram of another method for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • FIGURE 5 is a component block diagram of a wireless device suitable for implementing the method of accessing universal integrated circuit card files on the wireless device.
  • FIGURE 6 is a block diagram showing an exemplary wireless communications system in which a configuration of the disclosure may be advantageously employed.
  • FIGURE 7 is a process flow diagram of still another method for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • FIGURE 8 is a process flow diagram of yet another method for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • Appendix A is a document that describes aspects of the claimed subject matter. Appendix A forms part of this specification and is expressly incorporated herein by reference in its entirety.
  • SIM subscriber identification module
  • USIM universal subscriber identity module
  • RUIM removable user identity module
  • SIMs may store network specific information used to authenticate and identify subscribers on the network, the most important of which are the integrated circuit card identifier (ICCID) , international mobile subscriber identity (IMSI) , authentication key (Ki) , and local area identity (LAI) .
  • the SIM may also store other carrier specific data, such as short message service center (SMSC) numbers, service provider names (SPNs) , service dialing numbers (SDNs) , and value added service (VAS) applications.
  • SMSC short message service center
  • SPNs service provider names
  • SDNs service dialing numbers
  • VAS value added service
  • a USIM and a RUIM may be modules in UMTS and CDMA networks, respectively, which provide equivalent functions to a SIM in a GSM network.
  • SIM, ” “USIM, ” and “RUIM” may be used interchangeably to refer to a general module that is not restricted to a particular standard or technology.
  • SIM may also be used as a shorthand reference to a communications network associated with a particular SIM, because the information stored in a SIM enables the wireless device to establish a communications link with a particular network.
  • the SIM and the communications network, as well as the services and subscriptions supported by that network, correlate to one another.
  • UICC universal integrated circuit card
  • SIM card SIM card
  • UICC universal integrated circuit card
  • Various UICCs may have storage capabilities ranging from two to three kilobytes to up to one gigabyte of information.
  • wireless communications devices may be configured to support cellular network communications using a variety of technologies and formats depending on the service provider of choice.
  • wireless communications devices may utilize a subscriber identification module (SIM) provided on a smart card such as a universal integrated circuit card (UICC) .
  • SIM subscriber identification module
  • UICC universal integrated circuit card
  • a conventional UICC is generally implemented as a removable chip that is insertable into a wireless communications device, a UICC may alternatively be embedded in the wireless communications device (e.g., soldered and thus not removable) or in another chipset (e.g., a modem chipset) of the device, providing an embedded UICC (eUICC) .
  • eUICC embedded UICC
  • a file can be accessed (selected, read, updated, deleted, deactivated, activated, increased, searched, etc. ) concurrently by different applications.
  • the different applications may include terminal applications through different logical channels or UICC-based applications such as remote file management and toolkit applications.
  • the outcome of concurrent access is determined by a shareable/not-shareable bit in a file descriptor byte in a file control parameter (FCP) of the accessed file.
  • FCP file control parameter
  • a given file can be indicated as shareable in its file descriptor or application identifier.
  • the wireless device receives a request from a first application to access a universal integrated circuit card file.
  • the access request includes an application identifier selection request and a corresponding application identifier.
  • the wireless device queues the access request.
  • the wireless device also delays processing the access request in the queue when multiple access requests to the universal integrated circuit card file are in the queue.
  • the wireless device opens a new logical channel to access the universal integrated circuit card file when there are no other requests in the queue to access the universal integrated circuit card file.
  • FIGURE 1 shows a wireless device 110 that includes the described universal integrated circuit card configured to operate according to the method described herein and in Appendix A.
  • the wireless device 110 communicates with a wireless communications system 120.
  • the wireless device 110 includes a multi-band (e.g., dual-band) concurrent millimeter wave (mmW) transceiver.
  • the wireless communications system 120 may be a 5G system, a long term evolution (LTE) system, a code division multiple access (CDMA) system, a global system for mobile communications (GSM) system, a wireless local area network (WLAN) system, millimeter wave (mmW) technology, or some other wireless system.
  • LTE long term evolution
  • CDMA code division multiple access
  • GSM global system for mobile communications
  • WLAN wireless local area network
  • mmW millimeter wave
  • a CDMA system may implement wideband CDMA (WCDMA) , time division synchronous CDMA (TD-SCDMA) , CDMA2000, or some other version of CDMA.
  • WCDMA wideband CDMA
  • TD-SCDMA time division synchronous CDMA
  • CDMA2000 Code Division synchronous CDMA2000
  • mmW millimeter wave
  • FIGURE 1 shows the wireless communications system 120 including two base stations 130 and 132 and one system controller 140.
  • a wireless system may include any number of base stations and any number of network entities.
  • a wireless device 110 may be referred to as a mobile equipment (ME) , a user equipment (UE) , a mobile station, a terminal, an access terminal, a subscriber unit, a station, etc.
  • the wireless device 110 may also be a cellular phone, a smartphone, a tablet, a wireless modem, a personal digital assistant (PDA) , a handheld device, a laptop computer, a Smartbook, a netbook, a cordless phone, a wireless local loop (WLL) station, a Bluetooth device, etc.
  • the wireless device 110 may be capable of communicating with the wireless communications system 120.
  • the wireless device 110 may also be capable of receiving signals from broadcast stations (e.g., a broadcast station 134) , signals from satellites (e.g., a satellite 150) in one or more global navigation satellite systems (GNSS) , etc.
  • the wireless device 110 may support one or more radio technologies for wireless communications such as 5G, LTE, CDMA2000, WCDMA, TD-SCDMA, GSM, 802.11, etc.
  • the wireless device 110 may support carrier aggregation, which is operation on multiple carriers. Carrier aggregation may also be referred to as multi-carrier operation. According to an aspect of the present disclosure, the wireless device 110 may be able to operate in low-band from 698 to 960 megahertz (MHz) , mid-band from 1475 to 2170 MHz, and/or high-band from 2300 to 2690 MHz, ultra-high band from 3400 to 3800 MHz, and long-term evolution (LTE) in LTE unlicensed bands (LTE-U/LAA) from 5150 MHz to 5950 MHz.
  • LTE long-term evolution
  • Low-band, mid-band, high-band, ultra-high band, and LTE-U refer to five groups of bands (or band groups) , with each band group including a number of frequency bands (or simply, “bands” ) .
  • each band may cover up to 200 MHz and may include one or more carriers.
  • each carrier may cover up to 40 MHz in LTE.
  • LTE Release 11 supports 35 bands, which are referred to as LTE/UMTS bands and are listed in 3GPP TS 36.101.
  • the wireless device 110 may be configured with up to five carriers in one or two bands in LTE Release 11.
  • Some carrier aggregation implementations in the sub-six gigahertz (GHz) include multiple frequency bands in the millimeter wave frequency range, such as frequency bands located near 24 GHz, 26 GHz, 28 GHz, 37 GHz, 39 GHz, 48 GHz, and 56 to 71 GHz. .
  • these bands may include 24.25-24.45 GHz, 24.75-25.25 GHz, 27.5-28.35 GHz, and 37-40 GHz.
  • the carriers may be 50 MHz, 100 MHz, 200 MHz, or 400 MHz and the bands may be up to 2.4 GHz and may include one or more carriers.
  • FIGURE 2 shows a block diagram of the wireless device 110 in FIGURE 1, according to an aspect of the present disclosure.
  • the wireless device 110 may include a universal integrated circuit card (UICC) interface 202, which may receive an embedded UICC (eUICC) 204 that stores profiles associated with one or more subscriptions from network providers.
  • UICC universal integrated circuit card
  • eUICC embedded UICC
  • a UICC used in various examples may include user account information, an international mobile subscriber identity (IMSI) , a set of SIM application toolkit (SAT) commands, and storage space for phone book contacts.
  • the UICC may further store home identifiers (e.g., a system identification number (SID) /network identification number (NID) pair, a home preferred list of mobile networks (HPLMN) code, etc. ) to indicate the network operator providers for each subscription of the UICC.
  • SID system identification number
  • NID network identification number
  • HPLMN home preferred list of mobile networks
  • ICCID integrated circuit card identity
  • SIM serial number may be printed on the UICC for identification.
  • the UICC may be implemented within a portion of memory of the wireless device 110 (e.g., in a memory 214) , and thus need not be a separate or removable circuit, chip, or card.
  • the wireless device 110 may include at least one controller, such as a processor 206, which may be coupled to a coder/decoder (CODEC) 208.
  • the CODEC 208 may in turn be coupled to a speaker 210 and a microphone 212.
  • the processor 206 may also be coupled to the memory 214.
  • the memory 214 may be a non-transitory computer-readable storage medium that stores processor-executable instructions.
  • the memory 214 may store an operating system (OS) , as well as user application software and executable instructions.
  • OS operating system
  • the memory 214 may also store locally cached profiles for subscriptions supported by the eUICC 204.
  • the processor 206 and the memory 214 may each be coupled to at least one baseband processor or baseband modem processor 216.
  • the eUICC 204 in the wireless device 110 may utilize one or more baseband-radio frequency (RF) resources.
  • a baseband-RF resource may include the baseband modem processor 216, which may perform baseband/modem functions for communications with and controlling of a radio access technology (RAT) .
  • the baseband-RF resource may include one or more amplifiers and radios, referred to generally as RF resources (e.g., RF resource 218) .
  • the baseband-RF resources may share the baseband modem processor 216 (e.g., a single device that performs baseband/modem functions for all RATs on the wireless device 110) .
  • each baseband-RF resource may include physically or logically separate baseband processors (e.g., BB1, BB2) .
  • the RF resource 218 may be a transceiver that performs transmit/receive functions for the eUICC 204 on the wireless device 110.
  • the RF resource 218 may include separate transmit and receive circuitry, or may include a transceiver that combines transmitter and receiver functions. In some examples, the RF resource 218 may include multiple receive circuits.
  • the RF resource 218 may be coupled to a wireless antenna (e.g., a wireless antenna 220) .
  • the RF resource 218 may also be coupled to the baseband modem processor 216.
  • the processor 206, the memory 214, the baseband modem processor (s) 216, and the RF resource 218 may be included in the wireless device 110 as a system-on-chip 250.
  • the eUICC 204 and its corresponding UICC interface 202 may be external to the system-on-chip 250.
  • various input and output devices may be coupled to components on the system-on-chip 250, such as interfaces or controllers.
  • Example user input components suitable for use in the wireless device 110 may include, but are not limited to, a keypad 224, a touchscreen display 226, and the microphone 212.
  • the keypad 224, the touchscreen display 226, the microphone 212, or a combination thereof may perform the function of receiving a request to initiate an outgoing call or for receiving a person identification number.
  • Interfaces may be provided between the various devices and modules to implement functions in the wireless device 110 to enable communications in the wireless device.
  • the eUICC 204, the baseband processor BB1, BB2, the RF resource 218, and the wireless antenna 220 may constitute two or more radio access technologies (RATs) .
  • the wireless device 110 may be a communications device that includes a UICC, baseband processor, and RF resource configured to support two different RATs, such as 5G or LTE and GSM. More RATs may be supported on the wireless device 110 by adding more RF resources, and antennae for connecting to additional mobile networks.
  • the wireless device 110 may include, among other things, additional UICC or SIM cards, UICC or SIM interfaces, multiple RF resources associated with the additional UICC or SIM cards, and additional antennae for supporting subscriptions communications with additional mobile networks.
  • the eUICC 204 may support multiple mobile network operator profiles, or subscription profiles. For example, a user may download multiple profiles onto the eUICC 204. Each profile may store static SIM information that is used to support a subscription with one or more mobile telephony networks. Thus, the eUICC 204 may play the role of multiple SIMs, because each SIM supports one profile.
  • the wireless device 110 may be configured to locally cache one or more subscription profiles associated with or stored in the UICC.
  • the profiles may be cached in the memory 214, part of which may be designated memory for the modem.
  • FIGURE 3 is a process flow diagram of a method 300 for accessing universal integrated circuit card (UICC) files on a wireless device, according to aspects of the present disclosure.
  • a first application running on the wireless device requests access to a universal integrated circuit card file via a new logical channel.
  • the access request may include an application identifier selection request and a corresponding application identifier.
  • the wireless device queues the access request with other pending access requests. For example, a new record including the application identifier selection request and the corresponding application identifier are included in the queue.
  • the wireless device determines whether there are multiple requests in the queue to access the same universal integrated circuit card file. For example, the wireless device determines whether there is more than one application identifier selection request for the same application identifier in the queue. The wireless device delays the access request when multiple access requests to the universal integrated circuit card file are in the queue. In some instances, the process is paused or ended at block 324. At block 308, the wireless device opens a new logical channel to access the universal integrated circuit card file when there are no other requests in the queue to access the universal integrated circuit card file.
  • the wireless device determines whether the universal integrated circuit card file is shareable. For example the wireless device determines whether the application identifier is shareable.
  • the wireless device removes the access request from the queue when it is determined that the universal integrated circuit card file is shareable. However, when it is determined that the universal integrated circuit card file is not shareable, the process immediately continues to block 314, where the wireless device performs a transaction with a universal integrated circuit card via the new logical channel.
  • the wireless device receives a request to close the new logical channel and to complete an interaction with the specific application identifier.
  • the wireless device removes the access request that was already processed from the queue.
  • the wireless device determines whether the queue is empty after the request to close the new logical channel and after the access request is removed from the queue.
  • the wireless device processes another access request when the queue is not empty and the process then continues to block 308. However, when the queue is empty, the process ends at block 324.
  • FIGURE 4A is a process flow diagram of a method 400A for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • the wireless device e.g., a baseband processor of the wireless device
  • the wireless device queues the access request.
  • the wireless device delays processing the access request in the queue when multiple access requests to the universal integrated circuit card file are in the queue.
  • the wireless device opens a new logical channel to access the universal integrated circuit card file when there are no other requests in the queue to access the universal integrated circuit card file.
  • FIGURE 4B is a process flow diagram of another method 400B for accessing universal integrated circuit card files on a wireless device, in accordance with aspects of the present disclosure.
  • the wireless device e.g., a baseband processor of the wireless device
  • the wireless device determines whether the universal integrated circuit card file is being accessed by an initial application via an initial logical channel.
  • the wireless device determines whether the universal integrated circuit card file is shareable.
  • the wireless device queues the access request based on the determination of whether the universal integrated circuit card file is being accessed and whether the universal integrated circuit card file is shareable.
  • FIGURE 5 is a component block diagram of a wireless device 500 suitable for implementing the method of accessing a shareable universal integrated circuit card (UICC) file on the wireless device 500.
  • UICC universal integrated circuit card
  • Aspects of the present disclosure may be implemented in any of a variety of wireless devices, an example of which (e.g., wireless device 500) is illustrated in FIGURE 5.
  • the wireless device 500 may be similar to the wireless device 110 and may implement the method 300 and the method 400.
  • the wireless device 500 may include a processor 502 coupled to a touchscreen controller 504 and an internal memory 506.
  • the processor 502 may be one or more multi-core integrated circuits designated for general or specific processing tasks.
  • the internal memory 506 may be volatile or non-volatile memory, and may also be secure and/or encrypted memory, or unsecure and/or unencrypted memory, or any combination thereof.
  • the touchscreen controller 504 and the processor 502 may also be coupled to a touchscreen panel 512, such as a resistive-sensing touchscreen, capacitive-sensing touchscreen, infrared sensing touchscreen, etc. Additionally, the display of the wireless device 500 need not have touch screen capability.
  • the wireless device 500 may have one or more cellular network transceivers 508 coupled to the processor 502 and to one or more antennas 510 and configured for sending and receiving cellular communications.
  • the one or more transceivers 508 and the one or more antennas 510 may be used with the above-mentioned circuitry to implement the various example methods described.
  • the wireless device 500 may include one or more UICC or SIM cards 516 coupled to the one or more transceivers 508 and/or the processor 502 and may be configured as described above.
  • the wireless device 500 may also include speakers 514 for providing audio outputs.
  • the wireless device 500 may also include a housing 520, constructed of a plastic, metal, or a combination of materials, for containing all or some of the components discussed herein and in Appendix A.
  • the wireless device 500 may include a power source 522 coupled to the processor 502, such as a disposable or rechargeable battery.
  • the rechargeable battery may also be coupled to the peripheral device connection port to receive a charging current from a source external to the wireless device 500.
  • the wireless device 500 may also include a physical button 524 for receiving user inputs.
  • the wireless device 500 may also include a power button 526 for turning the wireless device 500 on and off.
  • FIGURE 6 is a block diagram showing an exemplary wireless communications system in which a configuration of the disclosure may be advantageously employed.
  • FIGURE 6 shows three remote units 620, 630, and 650 and two base stations 640.
  • Remote units 620, 630, and 650 include IC devices 625A, 625B, and 625C that include the disclosed universal integrated circuit card and the corresponding mobile equipment. It will be recognized that other devices may also include the disclosed universal integrated circuit card, such as the base stations, switching devices, and network equipment.
  • FIGURE 6 shows forward link signals 680 from the base station 640 to the remote units 620, 630, and 650 and reverse link signals 690 from the remote units 620, 630, and 650 to base station 640.
  • remote unit 620 is shown as a mobile telephone
  • remote unit 630 is shown as a portable computer
  • remote unit 650 is shown as a fixed location remote unit in a wireless local loop system.
  • a remote unit may be a mobile phone, a hand-held personal communications systems (PCS) unit, a portable data unit such as a personal digital assistant (PDA) , a GPS enabled device, a navigation device, a set top box, a music player, a video player, an entertainment unit, a fixed location data unit such as a meter reading equipment, or other communications device that stores or retrieves data or computer instructions, or combinations thereof.
  • FIGURE 6 illustrates remote units according to the aspects of the disclosure, the disclosure is not limited to these exemplary illustrated units. Aspects of the disclosure may be suitably employed in many devices, which include the universal integrated circuit card.
  • the methodologies may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein and in Appendix A.
  • a machine-readable medium tangibly embodying instructions may be used in implementing the methodologies described herein and in Appendix A.
  • software codes may be stored in a memory and executed by a processor unit.
  • Memory may be implemented within the processor unit or external to the processor unit.
  • the term “memory” refers to types of long term, short term, volatile, nonvolatile, or other memory and is not to be limited to a particular type of memory or number of memories, or type of media upon which memory is stored.
  • the functions may be stored as one or more instructions or code on a computer-readable medium. Examples include computer-readable media encoded with a data structure and computer-readable media encoded with a computer program.
  • Computer-readable media includes physical computer storage media. A storage medium may be an available medium that can be accessed by a computer.
  • such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer; disk and disc, as used herein and in Appendix A, includes compact disc (CD) , laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
  • instructions and/or data may be provided as signals on transmission media included in a communications apparatus.
  • a communications apparatus may include a standard cell circuit having signals indicative of instructions and data. The instructions and data are configured to cause one or more processors to implement the functions outlined in the claims.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • Some specifications define a universal integrated circuit card (UICC) shareable/not-shareable bit in a file descriptor byte in a file control parameter (FCP) of an accessed file.
  • a file can be accessed (selected, read, updated, deleted, deactivated, activated, increased, searched, etc. ) concurrently by different applications.
  • the different applications may include a terminal application through different logical channels or UICC-based applications such as remote file management and toolkit applications.
  • the outcome of concurrent access is determined by a shareable/not-shareable bit in a file descriptor byte in a file control parameter of the accessed file. For example, in order to be accessed from several logical channels at the same time, a given file can be indicated as shareable in its file descriptor or application identifier.
  • An application acquires exclusive access to a “not-shareable” file by successfully selecting it. Access by any other application, including an attempt to select the file, returns an error status (e.g., conditions of use not satisfied) .
  • Application (App) number one (#1) opens a logical channel #1 and selects a “not-shareable” application identifier (AID) #1; the UICC responds with success.
  • App #2 opens a logical channel #2 and selects AID #1; the UICC responds with success.
  • App #1 selects file #1; the UICC responds with success.
  • App #2 selects file #2; the UICC responds with success.
  • App #1 sends READ BINARY to read content of file #1.
  • UICC responds with file content of file #2.
  • App #1 gets unexpected content of file #1 so it cannot work normally.
  • the UICC cannot maintain independent access to a UICC file system in a different logical channel. Therefore, the unexpected file content is received by the application.
  • App #1 opens logical channel #1 and selects the “not-shareable” AID #1; the UICC responds with success.
  • App #2 opens the logical channel #2 and selects the AID #1; the UICC responds with the error status.
  • pending AID selection request queue where each element is of type (e.g., AID, AID selection request) . For example, when an application is waiting its turn to access a requested AID, its AID selection request will be pushed to the “pending AID selection request queue. ”
  • a client makes a request to select a specific AID in a new logical channel.
  • the terminal or wireless device adds a new record (e.g., AID, AID selection request) to “pending AID selection request queue. ”
  • a new record e.g., AID, AID selection request
  • the terminal determines whether more than one AID selection request for a same AID is in a queue. If yes, other clients must be accessing the same AID; end the workflow or process; process the request in the queue later.
  • step 4 Process the request from step 1 or step 11; open a logical channel and select AID as in a normal workflow.
  • the terminal or wireless device checks a selected response to see whether the AID is shareable.
  • the application starts a normal transaction or process with the UICC as in a normal call flow.
  • the application finally sends a request to the wireless device (e.g., a processor of the wireless device) to close the logical channel in order to finish its interaction with the specific AID as in a normal call flow.
  • the wireless device e.g., a processor of the wireless device
  • the wireless device removes the AID selection request that was just processed.
  • the wireless device checks if the queue is empty.
  • the wireless device processes a first pending AID selection request in the queue.
  • each element is of an application identifier (AID) type whether or not the AID is shareable. If an AID is present in the “AID information list” and the AID is not-shareable, it is indicated that this AID is being occupied by an application. Accordingly, other applications have to wait until the AID is released.
  • AID application identifier
  • pending AID selection request queue where each element is of an application identifier (AID) type whether or not the AID is shareable.
  • AID application identifier
  • the call flow according to this aspect is illustrated as follows.
  • the blue block represent an original call flow, and the green block operates in accordance with the “AID information list, ” and the orange blocks operate in accordance with the “pending AID selection request queue” .
  • the App request selects specific AID in a new logical channel.
  • the wireless device checks if the AID is present in the “AID information list. ”
  • the wireless device checks whether the AID is sharable.
  • the wireless device adds -AID, not-shareable -to the “AID information list, ” to avoid concurrent AID access if shareable information is unknown.
  • the wireless device opens a new logical channel and selects specific AID as in a normal call flow.
  • the wireless device determines whether the AID is shareable from an AID select response; update the information to matching AID information.
  • the application starts a normal transaction with UICC as in normal call flow.
  • the application finally requests that the wireless device closes the logical channel to finish its interaction with the specific AID as in normal call flow.
  • the wireless device checks whether the AID is present in “pending AID selection request queue” .
  • the wireless device selects the first record with matching AID in the queue then process the AID reselection request in record
  • the wireless device checks whether the AID is shareable as recorded in step 7.
  • the wireless device removes a record of the AID from the “AID information list. ” Note -for shareable AID, the record is always be present.
  • test results could vary on different timing sequences, which would be critical for both the application and the wireless device.

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  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

Un procédé permettant d'accéder à des fichiers de carte à circuit intégré universelle sur un dispositif sans fil comprend la demande, par une première application, d'accès à un fichier de carte à circuit intégré universelle. Le procédé comprend également les étapes suivantes : la mise en file d'attente de la demande d'accès et le retardement de la demande d'accès lorsque de multiples demandes d'accès au fichier de carte à circuit intégré universelle se trouvent dans la file d'attente. Le procédé comprend en outre l'ouverture d'un nouveau canal logique afin d'accéder au fichier de carte à circuit intégré universelle lorsqu'il n'y a pas d'autres demandes dans la file d'attente afin d'accéder au fichier de carte à circuit intégré universelle.
PCT/CN2019/108392 2019-09-27 2019-09-27 Initialisation de carte à circuit intégré universelle (uicc) pour un accès à des services de réseau WO2021056381A1 (fr)

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