• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    method of selecting an active sim for an emergency service and multiple sim device using the same. An active sim selection method for an emergency service and a multiple sim device utilizing the same are disclosed. The method, adopted by the multiple sim device, includes: receiving a request for an emergency call on a first sim by camping on an lte network; determining if a second sim camps on a second communications network supporting an emergency service; and when the second communications network supports the emergency service, make the emergency call from the second sim.
    公开号:BR102014016781A2
    申请号:R102014016781-1
    申请日:2014-07-07
    公开日:2018-02-14
    发明作者:Shih Wei-Feng；You Yuh-Hwang；Lee Ming；Lee Chih-Hung
    申请人:Mediatek Inc.；
    IPC主号:
    专利说明:

    (54) Title: METHOD OF SELECTING AN ACTIVE SIM FOR AN EMERGENCY SERVICE AND MULTIPLE SIMS DEVICE USING THE SAME (51) Int. Cl .: H04W4 / 21; H04W4 / 10 (30) Unionist Priority: 01/04/2014 US 14 / 231,972 (73) Holder (s): MEDIATEK INC.
    (72) Inventor (s): WEI-FENG SHIH; YUHHWANG YOU; MING LEE; CHIH-HUNG LEE (74) Attorney (s): ORLANDO DE SOUZA (57) Summary: METHOD OF SELECTING AN ACTIVE SIM FOR AN EMERGENCY SERVICE AND MULTIPLE SIMS DEVICE USING THE SAME. A method of selecting an active SIM for an emergency service and a multiple SIM device using it are disclosed. The method, adopted by the multi-SIM device, includes: receiving a request for an emergency call on a first SIM camping on an LTE network; determine whether a second SIM is camping on a second communications network that supports an emergency service; and when the second communications network supports the emergency service, make the emergency call from the second SIM.
    1/20
    METHOD OF SELECTING ONE ACTIVE SIM FOR AN EMERGENCY SERVICE AND MULTIPLE SIM DEVICE USING THE
    SAME
    BACKGROUND OF THE INVENTION FIELD OF THE INVENTION [001] The present invention relates to telecommunications and in particular it relates to a method of selecting an active SIM for an emergency service and a wireless device that uses the same,
    DESCRIPTION OF RELATED ART [002) A multiple SIM device (subscriber identity module), including particularly mobile phones, personal digital assistants, tablets and laptops, can contain two or more SIM cards- Each SIM card contains a mobile subscriber identity unique international (IMSI) and related key that allow a mobile phone user to be identified and authenticated by a service provider. Hereafter SIM and SIM card will be used interchangeably. The multi-SIM device allows a mobile phone user to operate with a corresponding number of networks and / or communication arrangements without the need to carry two or more devices, where the communication networks can be a switched circuit (CS) network such as a second generation telephone network (2G) or a packet switched network (PS) as an IP Multimedia Subsystem (IMS).
    [003] Emergency services include calls to any emergency service agencies, such as police, fire or ambulance. Emergency calls can be a CS or IMS call. If the emergency call is
    2/20 connected to a Public Switched Telephone Network (PSTN) number, the number ΡΞΤΝ will be translated to a nearest Public Security Response Point (PSAP) address and the call will be delivered to the address. In IMS, once the call is recognized as an emergency situation it will be properly routed without further user checks or authentication procedures.
    [004] Since the multiple SIM device contains multiple SIMs, an automatic SIM selection method for performing emergency services and a multiple SIM device using the same is required.
    BRIEF SUMMARY OF THE INVENTION [005] A detailed description is given in the following modalities with reference to the attached drawings.
    [006] A method adopted by a multiple SIM device supporting a plurality of SIMs is disclosed, comprising: receiving a request for an emergency call on a first SIM camping on an LTE network; determine if a second SIM is camping on a second communications network supporting an emergency service; and when the second communications network supports the emergency service, make the emergency call from the second SIM.
    [007] Another modality of a multiple SIM device is provided, comprising first and second SIMs and a selection circuit. The first SIM is configured to camp on an LTE network. The second SIM is configured to camp on a second communications network. The selection circuit is configured to receive a request for an emergency call on a
    3/20 first SIM, determine whether the second SIM encapsulates in the second communications network supporting an emergency service, and when the second communications network supports the emergency service, make the emergency call from the second SIM,
    BRIEF DESCRIPTION OF THE DRAWINGS [008] The present invention can be better understood by reading the subsequent detailed description and the examples with references made to the accompanying drawings, in which:
    [009] Figure 1 illustrates a schematic diagram of a mobile communications system 1
    [010] Figure 2 is a block diagram of a double SIM device 10 according to one embodiment of the invention, * [011] Figure 3 is a flow chart of a selection method 3, selecting an active SIM to perform a emergency service according to an embodiment of the invention;
    [012] Figures 4A, 4B, 4C, and 4D show modalities of various SIM combinations, from which the dual SIM device 10 can select an active SIM to perform an emergency service in accordance with an embodiment of the invention;
    [013] Figures 5A, 5B, 5C and 5D show other modalities of various SIM combinations, from which the double SIM device 10 can select an active SIM to perform an emergency service in accordance with an embodiment of the invention;
    [014] Figures 6A and 6B show other modalities of various SIM combinations, from which the device
    4/20 of dual SIM 10 can select an active SIM to perform an emergency service according to an embodiment of the invention; and [015] Figure 7 is a block diagram of another dual SIM device 10 according to an embodiment of the invention.
    DETAILED DESCRIPTION OF THE INVENTION [016] The following description is the best contemplated way of carrying out the invention. This description is made for the purpose of illustrating the general principles of the present invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.
    [017] several aspects are described here in connection with a wireless device, which can also be referred to as a system, device, subscriber unit, subscriber station, mobile station, mobile terminal, wireless terminal, mobile device, station remote, remote terminal, access terminal, user terminal, terminal, communication device, portable communication device, wireless communication device, user agent, user device, or user equipment (CJE). The wireless terminal can be a mobile phone, a satellite phone, cordless phone, a smart phone, a Session Initiation Protocol (S1P) phone, a Personal Digital Assistant (PDA), a portable device with wireless capability , a computing device, or other processing device connected to a wireless modem. In addition, a base station described here can be used to communicate with the
    5 / 2Q wireless terminal (s) and can also be referred to as an access point, a B node, or an evolved B node (ENB).
    [018] The techniques described here can be used for various communication systems based on circuit switching (CS) and packet switching (PS) such as Global System Systems for Mobile Communications (GSM), General Packet Radio Service ( GPRS), improved data rates for GSM Evolution (EDGE), Universal Mobile Telecommunications System (UMTS), Code Division Multiple Access 2000 (CDMA2G00) Enhanced Voice-Data Enhanced (EVDO), High Speed Packet Access ( HSPA), ΚΞΡΑ more (GSPA-f-), Synchronous Code-Time Division Multiple Access (TD-SCDMA),
    Worldwide Interoperability for Microwave Access (WiMAX), Long Term Evolution (LTE) and Advanced LTE (LTEA) [019] A subscriber identification module (SIM) card referred to here may be a universal SIM card (USIM) for system of Multiple Access by Broadband Code Division (W-CDMA) or Multiple Access by Synchronous Code Division-Time Division (TD-SCDMA), a
    Removable User Identity Module
    Removable User Identity (R-UIM) or Code Division Multiple Access Subscriber Identity Module (CSIM) for a CDMA2000 system. The SIM card contains an international mobile subscriber identity (ΙΜΞΙ) and a related key used to identify and authenticate subscribers at a mobile station (MS). The mobile station is programmed immediately after the SIM card (s) is connected to it. SIM cards can also be
    6/20 programmed to display customized menus for personalized services.
    [020] The modalities described here use a dual SIM configuration of a wireless device, which allows the use of two data services in one device. The scope of the invention, however, is not limited to a dual SIM device, and can be extended to a multiple SIM device, based on the principles described in the description.
    [021] Figure 1 illustrates a schematic diagram of a mobile communications system 1, incorporating a dual SIM device 10 that carries two subscriber identification module (SIM) cards 100a and 100b simultaneously to access the same or different networks. communication after camping in cells. The mobile communications system 1 contains an LTE network 12 that connects to the Internet 14 and a GSM network 16 that connects to a public switched telephone network (PSTN) 19. PSTN 19 is also connected to an emergency call server (ECS) 19. The LTE network 12 includes a base station 120 and an Evolved Packet Core (EPC) 122. The GSM network 16 includes a base station 160, a base station controller 162 and a core network 164. The ECS 19 can process , direct and inform the emergency call to responsible persons.
    [022] The two SIM cards 100a and 100b that are employed by the double SIM device 10 can be a SIM, SIM, R-UIM, CSIM, or other types of SIM card subscribed to mobile communications networks. In this modality, SIM 100a subscribes to the LTE 12 network and SIM 100b subscribes to the GSM 16 system.
    7/20 [023] An emergency service is not a subscription service and therefore can be supported automatically without normal registration and authentication. An emergency call can be routed over a C £ or PS network. When selecting SIM card 100a or 100b to initiate an emergency call, the traveling dual SIM device 10 can initiate an emergency record with the LTE network 12 or the GSM 16 system. Emergency call routing must comply with the applicable regulations where the caller is currently physically located.
    [024] On the move, the dual SIM device 10 can obtain emergency service over the GSM network 16 by dialing an emergency number to route the call to the emergency agencies where the double SIM device 10 is located.
    [025] In order to purchase the emergency service from the LTE 12 network, the LTE 12 network must connect to an IP Multimedia Subsystem (IMS) or have Voice over LTE [VoLTE) implemented, where IMS is a PS-based structure for providing IP multimedia services, and VoLTE offers voice service as data flows within the LTE data carrier. If IMS and VoLTE supports are not available on the dual SIM device 10 on the encoded LTE network 12, then the dual SIM device 10 encamping on the LTE cell can request a CS return or reselect a 2G or 3G network for an emergency call, where a voice service is obtained by returning to the switched circuit domain. To prepare for a possible CS return, the dual SIM device 10 must
    8/20 perform a combined attachment to the PS and CS domain. If the need for a CS return arises later, then the dual SIM device 10 will send a service request to a Mobility Management Entity (MME) server (not shown) at EPC 122. The mobility server MME tells the double SIM device 10 to be handovered to a second or third generation cell (2G / 3G), Handover procedures involve several steps, such as frequency scanning, cell synchronization, and acquisition of system information, and it usually takes from I to 2 seconds minimum and from 5 to 6 seconds maximum to complete. After the handover procedures, the dual SIM device 10 can initiate a Mobility Management (MM) connection to the handovered cell for the emergency CS call. After the emergency call is completed, depending on the implementation, the dual SIM device 10 may have to be handovered back to the previous LTE cell prior to the emergency call, which requires more time and system resources for processing.
    1026] The dual SIM device 10 can be a Double SIM Double Rest (DSDS) device, which allows two SIMs to be at rest waiting for a call, or a Double SIM Full Active (DSFA) device, which allows two SIMs are able to establish calls simultaneously. In both cases, the dual SIM device 10 can select a SIM that has radio coverage on an LTE network with IMS or VoLTE support, or a 2G or 3G network, which does not require a CS return to establish the session of emergency. In the illustrated case
    9/20 in Figure 1, when a user makes an emergency call on SIM 100a, which encamps on the LTE 12 network without O supports IMS and VoLTE, the dual SIM device 10 can automatically select and switch to SIM 100b, which encamps on the GSM network 16, to initiate the emergency session, thus avoiding the return of CS or reselection of the 2G / 3G network and reducing the need for resources to switch between networks for the emergency call.
    [027] The wireless device 10 uses a selection module to select a SIM to initiate an emergency session. Please refer to Figure 2 for a block diagram of an exemplary double SIM device 10 employing the Double SIM Double Sleep feature, automatic selection of a SIM card for emergency services according to an embodiment of the invention . The dual SIM device 10 contains hardware circuit components and firmware / software codes to provide automatic SIM selection for emergency services, including two SIM cards 100a and 100b, a 22-band processor, an RF circuit 24, an antenna 26 and a memory device 20 containing codes and instructions for a selection module 200, an application module 202, and modem modules 204 and 206.
    [02B] SIMs 100a and 100b, RF circuit 24 and memory device 20 are connected to baseband processor 22, RF circuit 24 is configured to provide signal processing of the RF signals received and sent through SIM connections corresponding to SIMs 100a and 100b via antenna 26. When executed, the selection module 200, the
    10/20 application 202, and modem modules 204 and 206, will make the baseband processor 22 execute the codes and instructions on them, and execute the steps and functions for selecting an active SIM for the launch of the emergency service , and specific functions related to modem operations, respectively.
    [029] More specifically, modem module 204 is configured to process data for a SIM connection established in SIM 100a, while modem module 206 is configured to process data for a SIM connection established in SIM 100b. Modem modules 204 and 206 can be implemented as firmware or software, perform various operations and modem functions for data connections on SIM 100a and 100b. The selection module 200, implemented by firmware or software, communicates and interacts with modem modules 204 and 206 and performs the automatic SIM selection process for the emergency service according to the modality of the invention. Application module 202, implemented by software, communicates and interacts with selection module 200 and runs application programs as a user interface that allows the user to enter a SIM card preference for data or voice services.
    [030] Although the Double SIM Double Rest structure is adopted by the modality in Figure 2, people skilled in the art would recognize that the Double SIM Full Asset (DSFA) structure can also be adopted by the double SIM device 10 in Figure 1, with two sets of circuits and AP antennas. In the DSFA implementation, each set of circuits and antenna
    11/20
    RF is dedicated to a SIM card. For example, the dual SIM device 10 can establish connections to the LTE network
    12 and the network GSM 16 at the same time, with the connection GSM serving for the services of emergency and the connection LTE serving for data services in rma i s.
    [031] Selection module 200 contains codes and instructions that execute a selection method 3 in Figure 3, which selects an active SIM to perform an emergency service according to a modality of the invention. Selection method 3 is initiated when a request for an emergency service is received by the double SIM device 10. Selection method 3 will not be used in a normal voice or data service.
    [032] During initialization, the dual SIM device 10 connected to the LTE network 12 on the SIM 100a, and connected to the GSM network 16 on the SIM 100b {S300). The LTE 12 network does not support IMS and VOLTE features, so the dual SIM device 10 cannot acquire emergency services from the LTE 12 network. The GSM 16 network is connected to ECS 19 through PSTM 18 to provide the services of emergency. The dual SIM device 10 may have SIM 100a defined as a standard or preferred user SIM for obtaining services.
    Ϊ033] Selection module 200 is configured to determine whether an emergency call request is received on SIM 100a of the dual SIM device 10 (S302). When a user makes an emergency call while the dual SIM device 10 is using SIM 100a to purchase other services, SIM 100a will receive an order for an emergency service on SIM 100a. When the selection module 200 identifies the presence of the request for
    12/20 emergency call, selection method 3 moves to Step S304, when selection module 200 determines that no emergency call is requested, selection method 3 moves to step S310 to exit.
    [034] Selection module 200 can also determine a network status of the connection associated with SIM 100a. The network status includes radio coverage and IMS and VoLTE support of the LTE 12 network. For example, the LTE 12 network may have normal service coverage, limited service coverage, or no service coverage. In some embodiments, the network status of the connection associated with SIM 100a indicates that the LTE 12 network has normal or limited service coverage and IMS and VoLTE support. Therefore, the selection module 200 can initiate the emergency call request on SIM 100a. In other embodiments, the network status of the connection associated with SIM 100a indicates that the LTE 12 network has normal or limited service coverage and no IMS and VoLTE support. Consequently, the selection module 200 cannot initiate the emergency request of SIM 100a, and selection method 3 has to go to Step S304 to determine the next operation. In other embodiments, the network status of the connection associated with SIM 100a indicates that the LTE network 12 has no coverage. As a consequence, the selection module 200 cannot initiate the emergency request of SIM 100a, and the selection method 3 has to go to Step Ξ304 to determine the next operation.
    [035] In step S304, the selection module 200 is configured to determine whether the other SIM 100b encapsulates in a communications network that supports the
    13/20 emergency (Ξ304), that is, if the communications network is a 2G, 3G or LTE network with IMS and VoLTE support. If so, the selection module 2C0 can automatically switch to ο ΞΙΜ 100b to make the emergency call (S306). Otherwise, selection method 3 has to reselect a 2G / 3G cell or an LTE cell that supports IMS and VoLTE for the SIM 100a to camp in and provide emergency service (S308J. For example, the GSM network 16 is a 2G network that supports emergency services As a result, selection module 200 can switch to SIM 100b for emergency service.
    [036] In step S3C6, the selection module 200 is configured to select SIM 100b for the acquisition of the emergency service. The double SIM device 10 then executes the emergency call from ΞΙΜ 100b. After the emergency call, the selection module 200 can switch back to SIM 100a to purchase non-emergency services. Selection method 3 is then completed and ended (S310).
    [037] In step Ξ309, since both connections associated with SIMs 100a and 100b do not support the emergency service, selection module 200 is configured to perform a CS return, or to reselect cell 2G, 3G or LTE with IMS or VoLTE support for ο ΞΙΜ 100a to camp in and provide emergency service. After the emergency call, the selection module 200 can instruct SIM 100a to connect back to the LTE cell prior to the emergency request. Selection method 3 is then completed and ended [S310).
    [038] Selection method 3 is adopted by the
    14/20 selection 200 to select a SIM to provide emergency service, avoiding CS return or 2G / 3G network reselection whenever possible and reducing the resource requirements for switching between networks for the emergency call.
    [039] Figures 4A, 4B, 4C, and 4D show modalities of various SIM combinations for SIM 100a and 100b, from which the dual SIM device 10 can select an active SIM to perform an emergency service in accordance with with one embodiment of the invention. 0 ΞΙΜ 100a in Figures 4A to 4D has normal coverage. Dual SIM devices 10 in Figures 4A to 4D can employ the selection method 3 in Figure 3 to select a SIM card to provide emergency service.
    [040] With reference to Figure 4A, which illustrates that SIM 100a is camping on one LTE network and SIM 100b is camping on another LTE network with VoLTE support. When an emergency service is requested on SIM 100a, selection module 200 of dual SIM devices 10 can select ο ΞΙΜ 100b for emergency service.
    [041J Figure 4B illustrates that SIM 100a is camping on one LTE network and SIM 100b is camping on another LTE network, both LTE networks lack IMS or VoLTE support. When an emergency service is requested on SIM 100a, the selection 200 cannot select SIM 100a or SIM 100b for emergency service. One of the SIM 100a and 100b has to perform CS return or 2G / 3G reselection to provide emergency service.
    (042) Figure 4C illustrates that SIM 100a is camping on an LTE network and SIM 100b is camping on a 3G network. When one
    15/20 emergency service is requested on SIM 100a, selection module 200 can select SIM 100b for emergency service.
    [0431 Figure 4D illustrates that SIM 100a is camping on an LTE network and SIM 100b is camping on a 2G network. When an emergency service is requested on SIM 100a, the selection module 200 can select SIM 100b for the emergency service.
    [044] Figures 5A, 5B, 5C and 5D show other modalities of various SIM combinations for SIM 100a and 100b, from which the dual SIM device 10 can select an active SIM to perform an emergency service according to with one embodiment of the invention. SIM 100a in Figures 5A to 50 has limited service coverage. Dual SIM devices 10 in Figures 5A to 5D can employ selection method 3 in Figure 3 to select a SIM card for the provision of emergency service.
    [04 5 1 Figure 5A illustrates that SIM 100a is camping on an LTE network with limited service coverage and SIM 100b is camping on a 2G network. When an emergency service is requested on SIM 100a, the selection module 200 can select ο ΞΙΜ 100b for the emergency service.
    [046] Figure 5B illustrates that SIM 100a is camping on an LTE network with limited service coverage and SIM 100b is camping on a 3G network. When an emergency service is requested on SIM 100a, the selection module 200 can select SIM 100b for the emergency service.
    [047] Figure 5C illustrates that SIM 100a is camping on an LTE network with limited service coverage and SIM 100b has no network coverage. When an emergency service
    16/20 is requested on SIM 100a, selection module 200 cannot select SIM 100a or SIM 100b for emergency service. One of SIM 100a and 100b must perform CS return or 2G / 3G reselection to provide emergency service.
    [048] Figure 5D illustrates that SIM 100a is camping on an LTE network with limited service coverage and SIM 100b is camping on another LTE network with normal service coverage, both LTE networks lack IMS or VoLTE support. When an emergency service is requested on SIM 100a, the selection module 200 cannot select SIM 100a or SIM 100b for the emergency service. One of SIM 100a and 100b must perform CS return or 2G / 3G reselection to provide emergency service.
    [049] Figures 6A and 6B show other modalities of various SIM combinations for SIM 100a and 100b, from which the double SIM device 10 can select an active SIM to perform an emergency service according to a modality of invention. SIM 100a in Figures 6A and 6B has no network coverage. Dual SIM devices 10 in 6A and 6B can employ selection method 3 in Figure 3 to select a SIM card to provide emergency service.
    [050] Figure 6A illustrates that SIM 100a does not have network coverage and ο ΞΙΜ 100b encapsulates on a 2G or 3G network with limited or normal service coverage. When an emergency service is requested on SIM 100a, the selection module 200 can select ο ΞΙΜ iOOb for the emergency service.
    [051] Figure 6B illustrates that SIM 100a does not have
    17/20 network coverage and SIM 100b camp on an LTE network with limited or normal service coverage, and without IMS and VoLTE support. When an emergency service is requested on SIM 100a, the selection module 200 can select SIM 100b for emergency service, 100b must perform CS return or 2G / 3G reselection to provide emergency service, ¢ 052] Figure 7 is a block diagram of another dual SIM device 10 according to an embodiment of the invention. The dual SIM device 10 includes two SIM cards 100a and 100b, a selection circuit 70, an RF circuit 24, and an antenna 26.
    1053] The SIM 100a subscribes to an LTE network without IMS and VoLTE support and subscribes ο ΞΙΜ 100b to a second communication network. The second communication network can be a 2G, 3G, 4G network, or a future generation of communication networks. The dual SIM device 10 performs services on SIM 100a or 100b to communicate with external communications networks via RF circuit 24 and antenna 26.
    [054 J The selection circuit 70 is configured to automatically select a ΞΙΜ for the provision of the emergency service according to the selection method 3 in Figure 3. The selection circuit 70, coupled with SlMs 100a and 100b, when receiving a request for an emergency call on the SIM 100a, is configured to determine if the SIM 100b is camping on a communications network supporting the emergency service, the 2G, 3G or LTE network with IMS or VoLTE support is considered to be capable of supporting the emergency service. If the 10Gb SIM connects to a GSM network
    18/20 which is a 2G network, the selection circuit 70 is configured to execute the emergency call from SIM 100b.
    [055] In some modalities, the selection circuit 70 is further configured to determine whether SIM 100a encamps in the LTE network that supports the emergency service. That is, if the LTE network supports IMS or VoLTE resources. When the LTE network supports IMS or VoLTE, selection circuit 70 is configured to select SIM 100a for emergency service. When the LTE network does not support IMS or VoLTE, the selection circuit 70 is configured to determine whether SIM 100b encamps on the second communications network that supports the emergency service. If the SIM 100b connects to a GSM network which is a 2G network and supports the emergency service, the selection circuit 70 is configured to execute the emergency call from the SIM 100b.
    [056) In some modalities, the selection circuit 70 is configured to determine if SIM 100a encamps in the network with LTE coverage. When the LTE network is not covered, the selection circuit 70 is configured to determine whether SIM 100b encamps in the second communication network has the support of emergency service. For example, if the second communication network is a GSM network, then it has the support of an emergency service.
    [057] In some embodiments, when none of the LTE network or the second communications network supports the emergency service, selection circuit 70 is configured to perform CS (CSFB) feedback or 2G / 3G cell reselection in one SIMs 100a and 100b.
    [059] The dual SIM device 10 in Figure 7 adopts the selection circuit 70 to select a SIM to provide
    19/20 emergency service, avoiding CS return or 2G / 3G network reselection whenever possible and reducing the resource requirements for switching between networks for emergency call, [059] As used here, the term determine encompasses calculation, computation, processing, derivation, investigation, searching (for example, searching in a table, a database or other data structure), inquiry and the like. In addition, determining may include resolution, selection, choice, establishment and the like.
    [060] The term or used here is intended to mean one or inclusive rather than one or exclusive. That is, unless otherwise specified, or clear from the context, the phrase X employs A or B is understood to mean any of the natural inclusive permutations. In addition, articles one and one, as used in this application and in the appended claims should generally be understood to mean one or more, unless otherwise specified or evident from the context to be directed in a singular form.
    [061] The various logic blocks, modules and illustrative circuits described in connection with the present disclosure can be implemented or executed with a general purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable field gate assembly (FPGA) signal or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination of these designed to perform the functions described herein. A general purpose processor can be a
    20 / Ξ0 microprocessor, but alternatively, the processor can be any commercially available processor, controller, microcontroller or state machine.
    [062] The operations and functions of the various logic blocks, modules and circuits described here can be implemented in hardware circuit or embedded software codes that can be accessed and executed by a processor.
    [0631 Although the invention has been described by way of example and in terms of preferred modalities, it should be understood that the invention is not limited to the disclosed modalities. On the contrary, it is intended to cover various modifications and similar arrangements (as would be evident to those skilled in the art). Therefore, the scope of the appended claims should be given the broadest interpretation to cover all such modifications and similar arrangements.
    1/3
    权利要求:
    Claims (3)
    [1]
    1. Method, adopted by a multiple SIM device supporting a plurality of SIMs, the method characterized by the fact that it comprises:
    receive a request for an emergency call on a first SIM while camping on an LTE network;
    determine whether a second SIM is camping on a second communications network supporting an emergency service; and when the second communications network supports the emergency service, make the emergency call from the second SIM.
    Ξ. Method, according to claim 1, characterized by the fact that it also comprises:
    determine whether the first SIM is camping on the LTE network that supports the emergency service;
    where the step of determining whether The second SIM encapsulates in the second communications network that supports the emergency service comprises:
    when the LTE network does not support the emergency service, determine whether the second ΞΙΜ encamps in the second communications network supporting the emergency service.
    3. Method, according to claim 2, characterized by the fact that the step of determining whether the first SIM camping on the LTE network that supports the emergency service comprises:
    determine whether the LTE network supports Voice over LTE (VoLTE) or IP Multimedia Subsystem {IMS}.
    4. Method, according to claim I, characterized by the fact that it still comprises;
    determine whether the first SIM camping on the LTE network that
    [2]
    2/3 has coverage;
    where the step of determining whether the second SIM encapsulates on the second communications network supporting the emergency service comprises:
    when the LTE network is not covered, determine whether the second SIM is camping on the second communications network supporting the emergency service.
    5. Method, according to claim 1, characterized by the fact that it also comprises:
    when neither the LTE network nor the second communications network supports the emergency service, select a second generation network (2G> or a third generation network (3G) for the first SIM to camp.
    6. Multiple SIM device, characterized by the fact that it comprises:
    a first SIM, configured to camp on a network
    LTE;
    a second SIM, configured to camp on a second communications network; and a selection circuit, coupled to the first and second SIMs, configured to receive a request for an emergency call on a first SIM, to determine whether the second SIM is camping on the second communications network supporting an emergency service, and when the second Communications network supports the emergency service, carry out the emergency call from the second SIM.
    7. Multiple SIM device according to claim 6, characterized by the fact that the selection circuit is configured to determine whether the first SIM is camping on the LTE network that supports the emergency service,
    [3]
    3/3 and, when the LTE network does not support the emergency service, determine whether the second SIM is camping on the second communications network supporting the emergency service.
    S, Multiple SIM device, according to claim 6, characterized by the fact that the selection circuit is configured to determine whether the LTE network supports Voice over LTE {VoLTE} or IP Multimedia Subsystem (IMS).
    9. Multiple SIM device according to claim 6, characterized by the fact that the selection circuit is configured to determine whether the first SIM camping in the LTE network that is covered, and in which the LTE network is not covered, determine whether the second SIM is camping on the second communications network supporting the emergency service.
    10. Multi-SIM device according to claim 6, characterized by the fact that when neither the LTE network nor the second communications network supports the emergency service, the selection circuit is configured to select a second generation network (2G) or a third generation (3G) network for the first SIM to camp.
    1/9
    类似技术:
    公开号 | 公开日 | 专利标题
    BR102014016781A2|2018-02-14|METHOD OF SELECTING AN ACTIVE SIM FOR AN EMERGENCY SERVICE AND MULTI-SIMS DEVICE USING THE SAME
    ES2719002T3|2019-07-05|Network access method and mobile communications terminal
    US8504017B1|2013-08-06|Method, apparatus and computer program product for a user terminal
    US9338805B2|2016-05-10|Method and apparatus for standby with a dual-standby modem and establishing single connection for one subscriber identity card
    JP5275422B2|2013-08-28|PLMN selection method and mobile communication device thereof
    US10582551B2|2020-03-03|Core network control plane device selection method and apparatus
    KR101857514B1|2018-05-14|Method for updating rplmn information, and user equipment
    CN109982429B|2020-10-16|Mode switching method and device
    CN103476073A|2013-12-25|Cell falling-back method and equipment
    TW201334605A|2013-08-16|Method of performing attach procedures
    US9838860B2|2017-12-05|Methods for efficient wireless communications and communications apparatus utilizing the same
    US11070946B2|2021-07-20|Method for establishing local network connection, terminal and network device
    US20160212782A1|2016-07-21|Methods for efficient wireless communications and communications apparatus utilizing the same
    CN106576273A|2017-04-19|Circuit-switched fallback with improved reliability in pool overlap areas
    CN107135480B|2020-03-31|Service anchoring method based on specific area
    KR102044677B1|2019-11-14|Wireless communication network registration method and terminal
    TW201511601A|2015-03-16|Method of performing location registration procedures and related communication system
    CN108207019B|2020-10-30|Method and device for registering network
    CN105813224A|2016-07-27|Communication device and wireless communication method with effciency
    US20190297593A1|2019-09-26|Apparatuses and methods for handling 5g system | location information
    CN109121184B|2021-01-22|Network searching method and related product
    JP2020102781A|2020-07-02|Terminal for achieving energy-saving mode using multiple sims and communication facility device therefor
    US20140094161A1|2014-04-03|Wireless terminal device, recording medium, and control method
    CN112995974A|2021-06-18|Method, device and terminal for dual-card dual-standby periodic TAU
    US20150133118A1|2015-05-14|Circuit-switched call delivery
    同族专利:
    公开号 | 公开日
    IN2014MU02125A|2015-10-09|
    CN104980905A|2015-10-14|
    US20150281929A1|2015-10-01|
    US9374697B2|2016-06-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US8108002B2|2008-03-21|2012-01-31|Mediatek Inc.|Communication apparatuses equipped with more than one subscriber identity card and capable of providing reliable communication quality|
    US9002315B2|2009-05-01|2015-04-07|Qualcomm Incorporated|Systems, apparatus and methods for facilitating emergency call service in wireless communication systems|
    US8942660B2|2009-06-05|2015-01-27|Qualcomm Incorporated|Method and apparatus for performing handover of an emergency call between wireless networks|
    KR101076190B1|2009-12-14|2011-10-21|주식회사 팬택|Supporting method for emergency call in mobile terminal and mobile terminal therefor|
    CN201750566U|2010-07-21|2011-02-16|宇龙计算机通信科技有限公司|Double-mode mobile terminal|
    EP2859760A1|2012-06-12|2015-04-15|Qualcomm Incorporated|Dynamic multi operator selection in a multiple-sims ue|
    US20140120859A1|2012-10-25|2014-05-01|Broadcom Corporation|Elevated Priority Call Reliability In Multiple SIM User Equipment|
    US9338805B2|2012-11-16|2016-05-10|Mediatek, Inc.|Method and apparatus for standby with a dual-standby modem and establishing single connection for one subscriber identity card|
    WO2015024596A1|2013-08-21|2015-02-26|Huawei Technologies Co., Ltd.|Method for establishment of an emergency call|
    CN103561435B|2013-10-29|2015-07-08|酷派软件技术（深圳）有限公司|Multi-mode terminal and communication method|
    CN103533499A|2013-10-31|2014-01-22|宇龙计算机通信科技有限公司|Communication service processing method and terminal|KR102241831B1|2013-12-18|2021-04-19|삼성전자 주식회사|Electronic device and operating method thereof|
    KR20160009876A|2014-07-17|2016-01-27|삼성전자주식회사|Electronic device and method for controlling emergency call in electronic device|
    KR102277207B1|2014-08-26|2021-07-14|삼성전자주식회사|Method and Apparatus for Mobile Communication using a plurality of Networks|
    US20160134317A1|2014-11-11|2016-05-12|Qualcomm Incorporated|System and methods for dynamically managing receive modes to improve performance on a multi-subscriber identitywireless communication device|
    US9584995B2|2015-05-20|2017-02-28|Apple Inc.|Emergency calling for multi-SIM devices|
    US9930504B2|2015-07-28|2018-03-27|Qualcomm Incorporated|Reducing call failure rate in multi-subscriber identity module capable devices|
    US9913245B2|2015-10-23|2018-03-06|Qualcomm Incorporated|Multi-subscriber identity modulecall setup|
    CN105246068B|2015-10-28|2019-09-10|小米科技有限责任公司|SIM card selection method and device|
    CN106714138B|2015-11-16|2019-10-29|中国移动通信集团终端有限公司|Automatically select the method and apparatus of terminal main card|
    CN105472785B|2015-11-18|2019-07-16|Oppo广东移动通信有限公司|A kind of method and apparatus of double-terminal handoff calls network|
    US9894504B2|2015-11-30|2018-02-13|Verizon Patent And Licensing Inc.|Emergency call support for VoLTE roaming within S8 home routing architecture|
    US10051544B2|2015-12-23|2018-08-14|Pismo Labs Technology Limited|Methods and systems for selecting SIM card|
    CN105611584B|2016-02-24|2019-08-16|努比亚技术有限公司|Switching device of conversing and method|
    US20170332222A1|2016-05-13|2017-11-16|Qualcomm Incorporated|Methods to prioritize mobile originated emergency calls over existing mobile terminated call related signaling on other subscription|
    US10075891B2|2016-09-30|2018-09-11|Intel IP Corporation|Camping approach in multi-SIM user equipment when present in coverage holes of respective network operators|
    WO2018080620A1|2016-10-28|2018-05-03|Intel IP Corporation|Multiplexing a receive chain between entities of a device when error correcting technique is employed by an entity|
    CN110140384A|2016-11-02|2019-08-16|株式会社Ntt都科摩|User apparatus and connection control method|
    US10142432B2|2017-02-08|2018-11-27|Qualcomm Incorporated|Redirection of a session initiation protocol invite|
    CN108696854B|2017-02-28|2021-02-23|中兴通讯股份有限公司|Calling method and terminal|
    WO2019109350A1|2017-12-08|2019-06-13|Qualcomm Incorporated|Improving voice over ltesuccess rate in a dual sim dual standbydevice|
    KR20190100585A|2018-02-21|2019-08-29|삼성전자주식회사|Apparatus and method for supporting a plurality of subscriber identification modules in wireless communication system|
    US10616929B2|2018-04-03|2020-04-07|Qualcomm Incorporated|Method and apparatus for internet resource sharing|
    US10368231B1|2018-05-30|2019-07-30|LenovoPte. Ltd.|SIM card selection|
    WO2019227437A1|2018-05-31|2019-12-05|华为技术有限公司|Call method and terminal device|
    US10757198B1|2018-07-19|2020-08-25|CSC Holdings, LLC|Dynamic cable operator plant discovery|
    KR20200015055A|2018-08-02|2020-02-12|삼성전자주식회사|Electronic device and method for processing an emergency call in the electronic device|
    US10848949B2|2018-11-19|2020-11-24|Qualcomm Incorporated|Emergency call redial on different PS domains|
    US10911995B2|2019-03-15|2021-02-02|Mediatek Inc.|Apparatuses and methods for dual active of multiple subscriber identities|
    CN110149668A|2019-05-23|2019-08-20|中国联合网络通信集团有限公司|Residence reselecting, device and terminal|
    CN110651500A|2019-06-11|2020-01-03|北京小米移动软件有限公司|Cell selection method and device, communication equipment and storage medium|
    CN113796107A|2019-08-07|2021-12-14|Oppo广东移动通信有限公司|Multi-subscriber identity module user equipment and operating method thereof|
    CN110933657A|2019-11-04|2020-03-27|Oppo（重庆）智能科技有限公司|Dialing method and device in emergency state, storage medium and electronic equipment|
    FR3110319A1|2020-05-14|2021-11-19|StmicroelectronicsSas|Wireless communication device|
    WO2022021328A1|2020-07-31|2022-02-03|华为技术有限公司|Communication method and communication apparatus|
    法律状态:
    2018-02-14| B03A| Publication of an application: publication of a patent application or of a certificate of addition of invention|
    2018-11-06| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-06-02| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-09-15| B11B| Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements|
    优先权:
    申请号 | 申请日 | 专利标题
    US14/231,972|US9374697B2|2014-04-01|2014-04-01|Method of selecting an active SIM for an emergency service and multi-SIM device utilizing the same|
    US14/231,972|2014-04-01|
    [返回顶部]