CN113473453B

CN113473453B - Method and device for establishing network connection

Info

Publication number: CN113473453B
Application number: CN202010247675.1A
Authority: CN
Inventors: 金辉; 才宇; 姚楚婷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2022-12-06
Anticipated expiration: 2040-03-31
Also published as: WO2021197010A1; CN113473453A

Abstract

The embodiment of the application provides a method and a device for establishing network connection, the method can be suitable for terminal equipment supporting a plurality of Subscriber Identity Module (SIM) cards, the plurality of SIM cards comprise a first SIM card and a second SIM card, and network connection exists between the first SIM card and the network equipment, and the method comprises the following steps: the terminal equipment receives a first Radio Resource Control (RRC) message sent by the network equipment, wherein the first RRC message carries configuration information of the second SIM card accessing to the network; and the terminal equipment establishes network connection with the network equipment according to the configuration information. By adopting the method and the device for establishing the network connection, the time delay for establishing the network connection can be reduced, so that the transmission performance is improved.

Description

Method and device for establishing network connection

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for establishing a network connection in the field of communications.

Background

With the rapid development of communication technology, more and more terminal devices (such as mobile phones) have a function of supporting a plurality of Subscriber Identity Module (SIM) cards.

When a terminal device establishes Radio Resource Control (RRC) connection with a network device, it needs to initiate a random access procedure to the network device, where the random access includes contention-based random access and contention-free random access. In the contention-based random access process, the terminal device randomly selects a preamble sequence to initiate a random access process to the network device, and the terminal device needs to contend for the random access resource due to limited random access resource, so that the time delay of the random access is long, and even the access may fail. In the contention-free random access process, the terminal device initiates a random access process to the network device by using a preamble sequence allocated by the network device, and the terminal device needs to acquire the preamble sequence through signaling interaction with the network device, so the time delay of the random access is long.

Therefore, for a terminal device supporting a plurality of SIM cards, when the terminal device switches between the SIM cards, network connection needs to be established for the newly used SIM card once for each switching, and for each SIM, no matter which random access process is used to establish the network connection, the random access delay is long, the power consumption is high, so that the time delay for establishing the network connection is long, and the transmission performance is poor.

Disclosure of Invention

The application provides a method and a device for establishing network connection, which can reduce the time delay of establishing network connection, thereby improving the transmission performance.

In a first aspect, an embodiment of the present application provides a method for establishing a network connection, where the method is applied to a terminal device, the terminal device supports a first subscriber identity module card and a second SIM card, and a network connection exists between the first SIM card and the network device, and the method includes: the terminal equipment receives a first Radio Resource Control (RRC) message sent by the network equipment, wherein the first RRC message carries configuration information of the second SIM card access network; and the terminal equipment establishes network connection with the network equipment according to the configuration information.

By adopting the method for establishing network connection provided by the embodiment of the application, when the first SIM card of the terminal equipment is in a connected state, the second SIM card is in a non-connected state, and the second SIM card needs to initiate a service, the network equipment can send configuration information for accessing the second SIM card into the network to the terminal equipment, and the terminal equipment can directly establish network connection with the network equipment according to the configuration information without performing a random access process of the second SIM card, so that the time delay for establishing network connection can be reduced, and the transmission performance is improved.

In a possible implementation manner, the configuration information includes a cell radio network temporary identifier C-RNTI and radio resource information of the second SIM card.

Optionally, before the terminal device receives the first RRC message sent by the network device, the method further includes: the terminal equipment determines that the first SIM card is in a connected state; the terminal equipment determines that the second SIM card is in a non-connection state, wherein the non-connection state comprises an idle state or a deactivation state; and the terminal equipment determines that the second SIM card needs to initiate a service.

It should be noted that the terminal device may support multiple SIM cards, and in this embodiment, the example that the multiple SIM cards include the first SIM card and the second SIM card is only described as an example, it should be understood that the multiple SIM cards may also include other SIM cards or other numbers of SIM cards, which is not limited in this embodiment.

It should be further noted that, when the first SIM card is in a connected state, it may be understood that a network connection exists between the first SIM card and a network device.

It should be further noted that, the second SIM card is in a non-connected state, which may also be understood that there is no network connection between the second SIM card and the network device.

Optionally, the terminal device may determine that the second SIM card needs to initiate a service in multiple ways, which is not limited in this embodiment of the present application.

In a first possible implementation manner, the terminal device may determine that the second SIM card needs to initiate a service according to a user operation.

For example: the terminal device may determine that the second SIM card needs to initiate a service according to the detected operation of the user to make a call using the second SIM card.

In a second possible implementation manner, the terminal device may receive an RRC message sent by the network device, where the RRC message carries a paging message used for paging the second SIM card, and the terminal device may determine, according to the paging message, that the second SIM card needs to initiate a service.

It should be noted that, according to the current states of the first SIM card and the second SIM card, the embodiment of the present application may be applicable to the following two application scenarios.

The application scene one: the first SIM card is in a connected state, the second SIM card is in an idle state, and the second SIM card needs to initiate a service.

Application scenario two: the first SIM card is in a connected state, the second SIM card is in a deactivated state, and the second SIM card needs to initiate a service.

Further steps in the method 100 will be described below by taking the application scenario one and the application scenario two as examples.

In a first possible implementation manner, the method further includes: when the first SIM card is in a connected state, the second SIM card is in an idle state, and the second SIM card needs to initiate a service, the terminal equipment generates a network connection establishment request, wherein the network connection establishment request is used for requesting to establish network connection between the second SIM card and the network equipment; and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries the network connection establishment request.

In a second possible implementation manner, the method further includes: when the first SIM card is in a connected state, the second SIM card is in a deactivated state, and the second SIM card needs to initiate a service, the terminal device generates a network connection recovery request, wherein the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network device; and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries the network connection recovery request.

Optionally, the network device may obtain the configuration information under multiple conditions, which is not limited in this embodiment of the present application.

In a possible implementation manner, in a case of the application scenario one, the network device may determine that the terminal device needs to be switched from the first SIM card to the second SIM card when receiving the network connection establishment request, and acquire the configuration information.

In another possible implementation manner, in the case of the application scenario two, the network device may determine that the terminal device needs to be switched from the first SIM card to the second SIM card when receiving the network connection recovery request, and acquire the configuration information.

It should be noted that, when the terminal device switches from the first SIM card to the second SIM card, it may be understood that the first SIM card is switched from a connected state to a disconnected state, and the second SIM card is switched from the disconnected state to the connected state.

Optionally, the network device may obtain the configuration information in a plurality of ways, which is not limited in this embodiment of the present application.

In a first possible implementation manner, the network device may assign the configuration information to the second SIM card by itself.

In a second possible implementation manner, the network connection may receive the configuration information sent by other network devices.

It should be noted that the terminal device may use an existing process of establishing a network connection, and establish a network connection with the network device according to the configuration information, and details are not repeated here to avoid repetition.

It should be further noted that, in the case of the first application scenario, the terminal device may establish a network connection between the second SIM card and the network device; or in the case of the second application scenario, the terminal device may resume the suspended network connection between the second SIM card and the network device.

In one possible implementation, the method further includes: the terminal equipment sends first indication information to the network equipment, wherein the first indication information is used for indicating a disconnection mode of disconnecting the network connection between the first SIM card and the network equipment, and the disconnection mode comprises suspension or release.

Optionally, the terminal device may send the first indication information to the network device in multiple ways, which is not limited in this embodiment of the present application.

In a possible implementation manner, the terminal device may send a fourth RRC message to the network device, where the fourth RRC message carries the first indication information.

In another possible implementation manner, the first indication information may be carried in the second RRC message.

It should be noted that, the terminal device carries the first indication information in the second RRC message, which can reduce signaling overhead.

In one possible implementation, the method further includes: and the terminal equipment receives a third RRC message sent by the network equipment through the network connection between the first SIM card and the network equipment, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

In a possible implementation manner, the first RRC message is further used for indicating to disconnect the network connection with the first SIM card.

In one possible implementation, the method further includes: and the terminal equipment receives a third RRC message sent by the network equipment through the network connection between the second SIM card and the network equipment, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

In a second aspect, an embodiment of the present application further provides a method for establishing a network connection, including: the method comprises the steps that network equipment acquires configuration information of a second Subscriber Identity Module (SIM) card of terminal equipment accessing a network, wherein the terminal equipment supports a first SIM card and a second SIM card, and network connection exists between the first SIM card and the network equipment; and the network equipment sends a first Radio Resource Control (RRC) message to the terminal equipment, wherein the first RRC message carries the configuration information.

In one possible implementation manner, when the second SIM card is in an idle state, the method further includes: and the network equipment receives a second RRC message sent by the terminal equipment, wherein the second RRC message carries a network connection establishment request which is used for requesting to establish network connection between the second SIM card and the network equipment.

In a possible implementation manner, the acquiring, by the network device, configuration information of a second SIM card of the terminal device accessing to a network includes: and the network equipment generates the configuration information according to the network connection establishment request.

In a possible implementation manner, when the second SIM card is in a deactivated state, the method further includes: and the network equipment receives a second RRC message sent by the terminal equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

In a possible implementation manner, the acquiring, by the network device, configuration information of a second SIM card of the terminal device accessing to a network includes: and the network equipment generates the configuration information according to the network connection recovery request.

In one possible implementation, the method further includes: and the network equipment disconnects the network connection with the first SIM card.

Optionally, the network device may disconnect the network connection with the first SIM card in multiple ways, which is not limited in this embodiment of the present application.

In one possible implementation, the network device may release the network connection with the first SIM card. That is, the first SIM card is switched from a connected state to an idle state.

In another possible implementation manner, the network device may save context information of the first SIM card and suspend a network connection with the first SIM card. That is, the first SIM card is switched from a connected state to a deactivated state.

In yet another possible implementation manner, the network device may receive first indication information sent by the terminal device, where the first indication information is used to indicate a disconnection manner for disconnecting a network connection between the first SIM card and the network device, and the disconnection manner includes suspension or release; and the network equipment disconnects the network connection with the first SIM card according to the disconnection mode indicated by the first indication information.

In one possible implementation, the method further includes: and the network equipment sends a third RRC message to the terminal equipment, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

Optionally, the network device may send the third RRC message to the terminal device in multiple ways, which is not limited in this embodiment of the present application.

In a first possible implementation manner, the network device may send, to the terminal device, a third RRC message through the network connection with the first SIM card, where the third RRC message is used to indicate that the network connection with the first SIM card is disconnected.

In a second possible implementation manner, the network device may send, to the terminal device, a third RRC message through the network connection with the second SIM card, where the third RRC message is used to indicate that the network connection with the first SIM card is disconnected.

In a third possible implementation manner, the first RRC message is further used to indicate to disconnect the network connection with the first SIM card.

That is, the third RRC message is the same as the first RRC message, which can reduce signaling overhead.

In a third aspect, an embodiment of the present application further provides a method for establishing a network connection, where the method is applied to a communication system, the communication system includes a terminal device and a network device, the terminal supports a first subscriber identity module SIM card and a second SIM card, and a network connection exists between the first SIM card and the network device, and the method includes: the network equipment acquires configuration information of the second SIM card accessing to the network; the network equipment sends a first Radio Resource Control (RRC) message to the terminal equipment, wherein the first RRC message carries the configuration information; the terminal equipment receives the first RRC message sent by the network equipment; and the terminal equipment establishes network connection with the network equipment according to the configuration information.

In one possible implementation, the configuration information includes a cell radio network temporary identity C-RNTI and radio resource information of the second SIM card.

In one possible implementation, the method further includes: and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection establishment request which is used for requesting to establish the network connection between the second SIM card and the network equipment.

In a possible implementation manner, the sending, by the terminal device, the second RRC message to the network device includes: and when the second SIM card is in an idle state and needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

In a possible implementation manner, the acquiring, by the network device, configuration information of the second SIM card accessing to the network includes: the network device generates the configuration information according to the network connection establishment request.

In one possible implementation, the method further includes: and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

In a possible implementation manner, the sending, by the terminal device, the second RRC message to the network device includes: and when the second SIM card is in a deactivated state and the second SIM card needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

In a possible implementation manner, the acquiring, by the network device, configuration information of the second SIM card accessing to the network includes: the network device generates the configuration information according to the network connection recovery request.

In one possible implementation, the method further includes: the network equipment disconnects the network connection with the first SIM card.

In a possible implementation manner, the second RRC message further carries first indication information, where the first indication information is used to indicate a disconnection manner for disconnecting the network connection between the first SIM card and the network device, where the disconnection manner includes suspension or release, and the network device disconnects the network connection with the first SIM card, including: and the network equipment disconnects the network connection with the first SIM card according to the disconnection mode indicated by the first indication information.

In one possible implementation, the method further includes: and the network equipment sends a third RRC message to the terminal equipment through the network connection with the first SIM card, wherein the third RRC message is used for indicating the disconnection of the network connection with the first SIM card.

In a possible implementation manner, the first RRC message is further used to indicate to disconnect the network connection with the first SIM card.

In one possible implementation, the method further includes: and the network equipment sends a third RRC message to the terminal equipment through the network connection with the second SIM card, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

In a fourth aspect, an embodiment of the present application further provides an apparatus for establishing a network connection, where the apparatus includes a unit or a module for performing the method in each of the above aspects or any possible implementation manner thereof.

In a fifth aspect, an embodiment of the present application further provides an apparatus for establishing a network connection, where the apparatus includes a processor and a memory, where the memory stores instructions, and the processor executes the instructions, so that the apparatus performs the method in the foregoing aspects or any possible implementation manner thereof.

In a sixth aspect, the present application also provides a computer-readable storage medium, in which a computer program or an instruction is stored, and when the computer program or the instruction is executed by a communication device, the method in the foregoing aspects or any possible implementation manner thereof is implemented.

In a seventh aspect, the present application also provides a computer program product, which contains instructions that, when executed on a computer or a processor, cause the computer or the processor to implement the method in the above aspects or any possible implementation manner thereof.

In an eighth aspect, an embodiment of the present application further provides a chip apparatus, where the chip apparatus includes a processor and a communication interface, where the processor is configured to invoke and execute instructions from the communication interface, and when the processor executes the instructions, implement the method in the foregoing aspects or any possible implementation manner thereof.

Drawings

Fig. 1 provides an architectural diagram of a communication system of an embodiment of the present application;

fig. 2 provides another architectural diagram of a communication system of an embodiment of the present application;

fig. 3 provides a schematic diagram of a passive mode of a dual Subscriber Identity Module (SIM) card terminal device according to an embodiment of the present application;

fig. 4 provides a schematic diagram of a Dual SIM Dual Standby (DSDS) mode of a dual SIM card terminal device according to an embodiment of the present application;

fig. 5 provides a schematic diagram of a Dual SIM Dual Active (DSDA) mode of a dual SIM terminal device according to an embodiment of the present application;

FIG. 6 provides a schematic flow chart diagram of a method 100 of establishing a network connection according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a display interface provided by an embodiment of the present application;

FIG. 8 is a schematic diagram of another display interface provided by an embodiment of the present application;

FIG. 9 provides a schematic block diagram of an apparatus 200 for establishing a network connection according to an embodiment of the present application;

FIG. 10 provides a schematic block diagram of an apparatus 300 for establishing a network connection according to an embodiment of the present application;

fig. 11 provides a schematic block diagram of a terminal device 400 of an embodiment of the application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

It should be noted that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: for example: global system for mobile communications (GSM) systems, code Division Multiple Access (CDMA) systems, wideband Code Division Multiple Access (WCDMA) systems, general Packet Radio Service (GPRS), long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), worldwide Interoperability for Microwave Access (WiMAX) communication systems, fifth generation (5, 5 g) systems or new radio systems (NR), and subsequent communication systems.

It should be further noted that, the terminal device described in the embodiment of the present application may also be referred to as: user Equipment (UE), mobile Station (MS), mobile Terminal (MT), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device, etc.

Alternatively, the terminal device may be a device that provides voice/data connectivity to a user, such as a handheld device, a vehicle mounted device, etc. with wireless connectivity. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (smart), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol), SIP) phone, wireless Local Loop (WLL) station, personal Digital Assistant (PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, vehicle-mounted device, wearable device, terminal device in 5G network or terminal device in Public Land Mobile Network (PLMN) for future evolution, etc., which are not limited by the embodiments of the present application.

It should be noted that the wearable device may also be referred to as a wearable smart device, which is a generic term for intelligently designing daily wearing and developing wearable devices such as glasses, gloves, watches, clothing, shoes, etc. by applying a wearable technology. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application function, and need to be matched with other equipment such as a smart phone for use, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Optionally, the terminal device may also be a terminal device in an internet of things (IoT) system, where IoT is an important component of future information technology development, and a main technical feature of the terminal device is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-machine and interconnected articles.

Alternatively, the various terminal devices as described above may be considered to be vehicle-mounted terminal devices, for example also referred to as on-board units (OBUs), if located on (e.g. placed in or mounted in) a vehicle.

It should be noted that the terminal device described in this embodiment of the present application may further include a relay (relay); or, the terminal device described in this embodiment may be a device capable of performing data communication with a base station.

It should be noted that the access network device in this embodiment may be a device for communicating with a terminal device, where the access network device may also be referred to as an access device or a radio access network device, and may be an evolved NodeB, eNB, or eNodeB in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN) scene, or the access device may be an access device in a relay station, an access point, a vehicle-mounted device, a wearable device, and a 5G network, or a network device in a PLMN network that is evolved in the future, or may be an Access Point (AP) in a WLAN, or may be a gNB in a new radio, NR, which is not limited in this embodiment of the present application.

Optionally, the access network device is a device in the RAN, or in other words, a RAN node that accesses the terminal device to the wireless network. For example, by way of example and not limitation, as access network devices, for example: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) access point (access point, AP), etc. In one network configuration, a network device may comprise a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device comprising CU and DU nodes, or a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node) and a RAN device of a DU node.

Optionally, the access network device is configured to provide a service for a cell, and the terminal device communicates with the access network device through a transmission resource (for example, a frequency domain resource or a frequency spectrum resource) used by the cell, where the cell may be a cell corresponding to the access network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell (small cell), where the small cell may include: urban cells (metro cells), micro cells (pico cells), femto cells (pico cells), and the like, and these small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

It should be noted that the core network device described in this embodiment of the present application may be connected to an access network device, so that the terminal device can communicate with the core network device through the access network device. Illustratively, in the core network device, the following network elements or functions may be included:

(1) Access Management Function (AMF): the access management module is mainly responsible for access and mobility control, including Registration Management (RM) and Connection Management (CM), access authentication and access authorization, reachability management, mobility management, and the like.

(2) User Plane Function (UPF): the method mainly provides user plane support, including PDU session and data network connection point, data packet routing and forwarding, data packet detection and user plane policy execution, qoS processing for user plane, downlink data packet caching and downlink data notification triggering, etc.

(3) Packet Control Function (PCF): mainly comprises a policy control function, which comprises supporting a unified policy framework to monitor network behaviors and providing policy rules for a control plane to execute.

(4) Authentication service function (AUSF): it is mainly responsible for providing security related functions such as: authentication, etc.

(5) Unified Data Management (UDM): the functions related to authentication and authorization of the user are specifically as follows: authentication credential processing, user identity processing, subscription information management, access authorization and the like.

Fig. 1 shows an architecture diagram of a communication system according to an embodiment of the present application. As shown in fig. 1, the communication system includes an access network device, a core network device, and a terminal device.

Optionally, the access network device may operate in an evolved universal mobile telecommunications system terrestrial radio access (E-UTRA) system, an NR system, a next generation communication system, or other communication systems, which is not limited in this embodiment of the present invention.

Optionally, the core network device may operate in an E-UTRA system, an NR system, a next generation communication system, or other communication systems, which is not limited in this embodiment of the present application.

It should be noted that, in fig. 1, taking an example that the core network device operates in a 5G core network (5 GC), the core network device and the access network device may communicate via an NG interface, and the access network device and the terminal device may communicate via a Uu interface.

Optionally, in this embodiment of the present application, one access network device may serve multiple terminal devices, and one core network device may also serve multiple access network devices, and fig. 1 is only described by taking an example in which one core network device serves one access network device and one access network device serves one terminal device as an example, but the embodiment of the present application is not limited thereto.

Fig. 2 shows another architecture diagram of the communication system according to the embodiment of the present application. As shown in fig. 2, the communication system includes an access network device 1, an access network device 2, a core network device 1, a core network device 2, and a terminal device.

It should be noted that, in fig. 2, taking an example that an access network is a Radio Access Network (RAN), the core network device and the access network device may communicate through an NG interface, and the access network device may communicate through an Xn interface. In addition, the access network equipment and the terminal equipment can communicate through a Uu interface.

Alternatively, the access network device 1 and the access network device 2 may operate in an E-UTRA system, an NR system, a next generation communication system, or other communication systems, which is not limited in this embodiment of the present application.

Alternatively, the core network device 1 and the core network device 3 may operate in an E-UTRA system, an NR system, a next generation communication system, or other communication systems, which is not limited in this embodiment of the present application.

It should be noted that the access network device described in fig. 1 or fig. 2 may be, for example, a base station. The access network device corresponds to different devices in different systems, for example, the access network device may correspond to an eNB in a 4G system, and the access network device corresponds to an access network device in a 5G system, for example, a gNB in a 5G system. Similarly, the core network device corresponds to different devices in different systems, for example, in a 4G system, the core network device may correspond to a Mobility Management Entity (MME), and in a 5G system, the core network device in 5G, for example, the AMF. Certainly, the technical solution provided in the embodiment of the present application may also be applied to a future mobile communication system, so that the access network device in fig. 1 or fig. 2 may also correspond to an access network device in the future mobile communication system, and the core network device may also correspond to a core network device in the future mobile communication system. In fig. 1 or fig. 2, the access network device is taken as a base station as an example, and actually, with reference to the foregoing description, the access network device may also be a RSU or the like.

As an example, more and more smartphones currently support the simultaneous insertion of two Subscriber Identity Module (SIM) cards, e.g., one for private services and one for work; alternatively, one SIM card is used for data services and the other SIM card is used for voice services. The two SIM cards in one mobile phone can belong to the same mobile operator or different mobile operators; the systems may belong to the same system (the systems include NR, LTE, wideband Code Division Multiple Access (WCDMA), time Division Multiple Access (TDMA) 2000, GSM, or the like), or may belong to different systems.

According to the difference of the transceiving capacity of the terminal equipment, the terminal equipment with the double SIM cards can have one of the following three modes:

1. passive (passive) mode: although two SIM cards can be inserted, only one can be used at a time.

For example: fig. 3 shows a schematic diagram of the passive mode. As shown in fig. 3, two SIM cards, USIM1 and USIM2, are taken as an example. At time 1, usimm 1 is working (or in a network connected state), that is, USIM1 can send and receive data, and USIM2 cannot be used; alternatively, at time 2, usimm 2 is active (or in a network connected state), i.e., the USIM2 can transceive data, at which time the USIM1 cannot be used.

2. DSDS mode: two SIM cards share a transceiver, and for the idle (idle) state, the transceiver needs to listen to paging messages of both cards. For example, the transceiver may listen in a Time Division Multiplexing (TDM) manner.

For example: fig. 4 shows a schematic diagram of a DSDS pattern. As shown in fig. 4, two SIM cards USIM1 and USIM2 are taken as an example. At time 1, the usimm 1 works (or is in a network connection state), that is, the USIM1 can receive and transmit data, and at this time, the USIM2 can be in an idle state or an inactive state (inactive); alternatively, the USIM2 operates (or is in a network connection state), that is, the USIM2 can transmit and receive data, and at this time, the USIM1 may be in an idle state or an inactive state. The inactive state may also be referred to herein as a deactivated state, or a deactivated dynamic state, or the like.

3. DSDA mode: both SIM cards use respective transceivers. The two SIM cards can be in a network connection state at the same time, that is, the terminal device can receive and send data of the two SIM cards at the same time.

For example: fig. 5 shows a schematic diagram of a DSDA pattern. As shown in fig. 5, two SIM cards, USIM1 and USIM2, are taken as an example. When the USIM1 operates (or enters a network connected state), that is, when the USIM1 transmits and receives data, the USIM2 may also operate, that is, the USIM2 and the USIM1 may be simultaneously in a network connected state.

The above-mentioned 3 Radio Resource Control (RRC) states of the terminal device are described below. As described above, the 3 RRC states are: a network connected state (connected state), an RRC idle state (idle state), and an inactive state (inactive state). The inactive state may also be referred to as a deactivated dynamic state, a deactivated state, or the like.

(1) Herein, "connected state" and "network connected state" are the same concept, and the two terms may be interchanged): the terminal equipment establishes network connection with the network and can perform data transmission.

(2) Herein, "idle state" and "RRC idle state" are the same concept, and the two designations may be interchanged): the terminal device does not establish a network connection with the network and the base station does not store the context of the terminal device. If the terminal device needs to enter the network connection state from the idle state, a network connection establishment process needs to be initiated.

(3) Herein, "deactivated state" and "RRC deactivated state" are the same concept, and the two designations may be interchanged): the terminal device has previously entered the network connected state and the base station has suspended the network connection but has saved the context of the terminal device. If the terminal device needs to enter the connected state again from the deactivated state, a network connection recovery process (or referred to as a network connection re-establishment process) needs to be initiated. Compared with the RRC establishment process, the RRC recovery process has shorter time delay and smaller signaling overhead. However, the base station needs to store the context of the terminal device, which occupies the storage overhead of the base station.

For convenience of understanding, in the embodiment of the present application, a scenario in which the terminal device includes two SIM cards is taken as an example for description, but in practical applications, one terminal device may support multiple SIM cards, and the embodiment of the present application is not limited thereto.

Fig. 6 illustrates a method 100 for establishing a network connection according to an embodiment of the present application. The method 100 is applied to a communication system as shown in fig. 1 or fig. 2.

The method 100 includes S101 to S103.

Optionally, the method 100 may further include S104 to S112.

S104, the terminal equipment determines that the first SIM card is in a connected state, wherein the terminal equipment supports the first SIM card and the second SIM card.

It should be noted that the SIM card described in this embodiment of the present application may be understood as a key for accessing a mobile network by a terminal device, and for convenience of description, the SIM card and its evolution are collectively referred to as the SIM card in this embodiment of the present application.

For example: the SIM card may be an identification card of a global system for mobile communications (GSM) digital mobile phone user, and is used for storing an identification code and a secret key of the user and supporting authentication of the GSM system to the user.

For another example, the SIM card may be a Universal Subscriber Identity Module (USIM), which may also be referred to as an upgraded SIM card.

It should be further noted that, it should be noted that the terminal device may support multiple SIM cards, and in this embodiment, the example that the multiple SIM cards include the first SIM card and the second SIM card is only exemplarily described, and it should be understood that the multiple SIM cards may also include other SIM cards or other numbers of SIM cards, which is not limited in this embodiment.

It should be further noted that, the first SIM card is in a connected state, which may be understood as that a network connection exists between the first SIM card and a network device.

For example: the terminal device may be the terminal device described in fig. 1 or fig. 2, and the network device may be the access network device 1 described in fig. 1 or fig. 2.

S105, the terminal equipment determines that the second SIM card is in a non-connection state, wherein the non-connection state comprises an idle state or a deactivation state.

It should be noted that, the second SIM card is in a non-connected state, which may also be understood that there is no network connection between the second SIM card and the network device.

S106, the terminal equipment determines that the second SIM card needs to initiate service.

For example, when the terminal device detects that the user makes a call through a second SIM card, it is determined that the second SIM card needs to initiate a service.

It should be noted that, according to the current states of the first SIM card and the second SIM card, the embodiment of the present application may be applied to the following two application scenarios.

For example: taking the terminal device as a mobile phone as an example, refer to a Graphical User Interface (GUI) shown in fig. 7, where the GUI is an interface of a browser of the mobile phone, and the browser is networked through a first SIM card. And when the mobile phone detects an incoming call of a second SIM card, determining that the second SIM card needs to initiate a service, and answering the incoming call through the second SIM card.

Another example is: taking the terminal device as a mobile phone as an example, refer to the GUI shown in fig. 8, where the GUI is a chat software interface of the mobile phone, and the chat software is networked through a first SIM card. And when the mobile phone detects that the user clicks the telephone number in the chat software interface, popping up a sub-interface on the interface, wherein the sub-interface is an SIM card option interface, and when the mobile phone detects that the user clicks the option of the second SIM card, determining that the second SIM card needs to initiate a service and dialing through the second SIM card.

Further steps in the method 100 will be described below by taking application scenario one and application scenario two as examples, respectively.

In the case of application scenario one, the method 100 further includes S107 to S108.

S107, when the first SIM card is in a connection state, the second SIM card is in an idle state, and the second SIM card needs to initiate a service, the terminal device generates a network connection establishment request, wherein the network connection establishment request is used for requesting to establish a network connection between the second SIM card and the network device.

In a possible implementation manner, the network connection establishment request may carry a temporary mobile subscriber identity (S-TMSI) of the second SIM card.

S108, the terminal device sends a second RRC message to the network device, wherein the second RRC message carries the network connection establishment request; correspondingly, the network device receives the second RRC message sent by the terminal device.

(II) in the case of application scenario II, method 100 further includes S109-S110.

And S109, when the first SIM card is in a connected state, the second SIM card is in a deactivated state, and the second SIM card needs to initiate a service, the terminal device generates a network connection recovery request, wherein the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network device.

In a possible implementation manner, the network connection establishment request may carry a recovery identifier of the second SIM card.

It should be noted that, when the recovery identifier is that the second SIM card of the terminal device enters the deactivated state from the connected state, the network device is assigned to the second SIM card, and is used for recovering the second SIM card from the deactivated state to the connected state.

S110, the terminal device sends a second RRC message to the network device, wherein the second RRC message carries the network connection recovery request; correspondingly, the network device receives the second RRC message sent by the terminal device.

S101, the network equipment acquires configuration information of the second SIM card access network.

In a possible implementation manner, in a case of the first application scenario, the network device may determine that the terminal device needs to be switched from the first SIM card to the second SIM card when receiving the network connection establishment request, and acquire the configuration information.

For example: the network device may determine that the terminal device needs to be switched from the first SIM card to the second SIM card according to the S-TMSI of the second SIM card carried in the network connection establishment request, and acquire the configuration information.

For example: the network device may determine that the terminal device needs to be switched from the first SIM card to the second SIM card according to the recovery identifier of the second SIM card carried in the network connection recovery request, and acquire the configuration information.

In a first possible implementation manner, the network device may allocate the configuration information to the second SIM card by itself.

For example: the network device may allocate the configuration information to the second SIM card according to the S-TMSI carried in the network connection establishment request.

Another example is: the network device may allocate the configuration information to the second SIM card according to the recovery identifier carried in the network establishment recovery request.

For example: taking the network device as a base station as an example, the network device may send a context request message of the terminal device to a core network device, where the context request message carries the S-TMSI of the second SIM card, and receive the configuration information sent by the core network device according to the S-TMSI.

Another example is: taking the network device as a base station as an example, the network device may send a context request message of the terminal device to another base station, where the context request message carries the S-TMSI of the second SIM card, and receive the configuration information sent by the other base station according to the S-TMSI.

In a possible implementation manner, the configuration information may include a cell-radio network temporary identifier (C-RNTI) of the second SIM card and radio resource information.

For example: the radio resource information may be radio bearer configuration (radio bearer configuration) for establishing a Signaling Radio Bearer (SRB).

S102, the network equipment sends a first RRC message to the terminal equipment, and the first RRC message carries the configuration information; correspondingly, the terminal equipment receives the first RRC message sent by the network equipment.

S103, the terminal equipment establishes network connection with the network equipment according to the configuration information.

It should be further noted that, in the case of the first application scenario, the terminal device may establish a network connection between the second SIM card and the network device; or in the case of the application scenario two, the terminal device may resume the suspended network connection between the second SIM card and the network device.

S111, the network equipment disconnects the network connection with the first SIM card.

S112, the network device sends a third RRC message to the terminal device, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card; correspondingly, the terminal device receives the third RRC message sent by the network device.

It should be noted that, if the S111 is executed before the S112, the third RRC message is used to indicate that the network connection with the first SIM card is disconnected; if the S111 is performed after the S112, the third RRC message is used to indicate that the network connection with the first SIM card is to be disconnected.

In a first possible implementation manner, S112 is executed before S103, that is, a network connection between the second SIM card and the network device is not established, and then the network device may send the third RRC message to the terminal device through the network connection between the first SIM card and the network device. Accordingly, S111 is performed after S112.

Optionally, the third RRC message and the first RRC message may be the same message, that is, the first RRC message is used to indicate to disconnect the network connection with the first SIM card, and the first RRC message carries the configuration information. That is, S102 and S112 may be implemented by one step.

It should be noted that, the terminal device instructs to disconnect the network connection with the first SIM card through the first RRC message, so that signaling overhead can be reduced.

In a second possible implementation manner, S112 is executed after S103, that is, a network connection between the second SIM card and the network device is already established, and then the network device may send the third RRC message to the terminal device through the network connection between the second SIM card and the network device. Accordingly, the execution sequence of S111 and S112 is not sequential.

The method 100 for establishing a network connection provided by the embodiment of the present application is described above with reference to fig. 6 to 8, and the apparatus 200 for establishing a network connection for performing the method 100 described above is described below with reference to fig. 9 to 11.

It should be noted that the apparatus 200 may be a terminal device or a network device described in the foregoing embodiment of the method 100, and this embodiment of the present application does not limit this.

It is understood that the apparatus 200 comprises corresponding hardware and/or software modules for performing the respective functions in order to realize the above-mentioned functions. The present application is capable of being implemented in hardware or a combination of hardware and computer software in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, with the embodiment described in connection with the particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The present embodiment may perform division of functional modules on the apparatus 200 according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be implemented in the form of hardware. It should be noted that the division of the modules in this embodiment is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

In the case of dividing each functional module by corresponding functions, fig. 9 shows a schematic diagram of a possible composition of the terminal device and the network device involved in the foregoing embodiments, as shown in fig. 9, the apparatus 200 may include: a transceiving unit 210 and a processing unit 220.

Wherein the processing unit 220 may control the transceiving unit 210 to implement the methods described in the above-described method 100 embodiments, and/or other processes for the techniques described herein.

It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The apparatus 200 provided in the present embodiment is used to perform the method 100, so that the same effect as the above implementation method can be achieved.

In case an integrated unit is employed, the apparatus 200 may comprise a processing unit, a storage unit and a communication unit. The processing unit may be configured to control and manage the operation of the apparatus 200, and for example, may be configured to support the apparatus 200 to perform the steps performed by the above units. The memory unit may be used to support the apparatus 200 in executing stored program codes and data, etc. The communication unit may be used to support the communication of the apparatus 200 with other devices.

Wherein the processing unit may be a processor or a controller. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., a combination of one or more microprocessors, a Digital Signal Processing (DSP) and a microprocessor, or the like. The storage unit may be a memory. The communication unit may specifically be a radio frequency circuit, a bluetooth chip, a Wi-Fi chip, or other devices that interact with other electronic devices.

In a possible implementation manner, the apparatus 200 according to this embodiment may be an apparatus 300 for establishing a network connection, which has a structure shown in fig. 10, where the apparatus 300 may be a schematic structural diagram of a terminal device, and may also be a schematic structural diagram of a network device, and the apparatus 300 includes a processor 310 and a transceiver 320, and the processor 310 and the transceiver 320 communicate with each other through an internal connection path. The related functions implemented by the processing unit 220 in fig. 9 may be implemented by the processor 310, and the related functions implemented by the transceiver unit 210 may be implemented by the processor 310 controlling the transceiver 320.

Optionally, the apparatus 300 may further include a memory 330, and the processor 310, the transceiver 320 and the memory 330 communicate with each other through an internal connection path. The associated functions implemented by the memory unit depicted in fig. 9 may be implemented by memory 330.

Fig. 11 shows a schematic structural diagram of a terminal device 400. As shown in fig. 11, the terminal device 400 may include a processor 410, an external memory interface 420, an internal memory 421, a Universal Serial Bus (USB) interface 430, a charging management module 440, a power management module 441, a battery 442, an antenna 1, an antenna 2, a mobile communication module 450, a wireless communication module 460, an audio module 470, a speaker 470A, a receiver 470B, a microphone 470C, an earphone interface 470D, a sensor module 480, keys 490, a motor 491, an indicator 492, a camera 493, a display screen 494, a Subscriber Identification Module (SIM) card interface 495, and the like.

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the terminal device 400. In other embodiments of the present application, terminal device 400 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 410 may include one or more processing units, such as: the processor 410 may include an Application Processor (AP), a modem processor, a Graphics Processor (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. Wherein the different processing units may be separate components or may be integrated in one or more processors. In some embodiments, terminal device 400 may also include one or more processors 410. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution. In other embodiments, a memory may also be provided in processor 410 for storing instructions and data. Illustratively, the memory in the processor 410 may be a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 410. If the processor 410 needs to use the instruction or data again, it can be called directly from the memory. This avoids repeated accesses, reduces the latency of the processor 410, and thus increases the efficiency with which the terminal 400 processes data or executes instructions.

In some embodiments, processor 410 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit audio source (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a SIM card interface, and/or a USB interface, etc. The USB interface 430 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 430 may be used to connect a charger to charge the terminal 400, and may also be used to transmit data between the terminal 400 and peripheral devices. The USB interface 430 may also be used to connect to a headset to play audio through the headset.

It should be understood that the interface connection relationship between the modules illustrated in the embodiment of the present application is only an exemplary illustration, and does not constitute a limitation on the structure of the terminal device 400. In other embodiments of the present application, the terminal device 400 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The charging management module 440 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 440 may receive charging input from a wired charger via the USB interface 430. In some wireless charging embodiments, the charging management module 440 may receive a wireless charging input through a wireless charging coil of the terminal 400. While the charging management module 440 charges the battery 442, the power management module 441 may also supply power to the terminal.

The power management module 441 is used to connect the battery 442, the charging management module 440 and the processor 410. The power management module 441 receives input from the battery 442 and/or the charging management module 440 and provides power to the processor 410, the internal memory 421, the external memory, the display 494, the camera 493, the wireless communication module 460, and the like. The power management module 441 may also be used to monitor parameters such as battery capacity, battery cycle number, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 441 may be disposed in the processor 410. In other embodiments, the power management module 441 and the charging management module 440 may be disposed in the same device.

The wireless communication function of the terminal device 400 may be implemented by the antenna 1, the antenna 2, the mobile communication module 440, the wireless communication module 460, the modem processor, the baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in terminal device 400 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 450 may provide a solution including 2G/3G/4G/5G wireless communication and the like applied on the terminal device 400. The mobile communication module 450 may include at least one filter, switch, power amplifier, low Noise Amplifier (LNA), and the like. The mobile communication module 450 may receive the electromagnetic wave from the antenna 1, and filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 450 can also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 450 may be disposed in the processor 410. In some embodiments, at least some of the functional blocks of the mobile communication module 450 may be disposed in the same device as at least some of the blocks of the processor 410.

The wireless communication module 460 may provide a solution for wireless communication applied to the terminal 400, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), bluetooth (BT), global Navigation Satellite System (GNSS), frequency Modulation (FM), near Field Communication (NFC), infrared (IR), and the like.

Alternatively, the wireless communication module 460 may be one or more devices integrating at least one communication processing module.

The wireless communication module 460 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 410. The wireless communication module 460 may also receive a signal to be transmitted from the processor 410, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

The terminal 400 implements a display function through the GPU, the display screen 494, and the application processor, etc. The GPU is an image processing microprocessor connected to a display screen 494 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 410 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 494 is used to display images, videos, and the like. The display screen 494 includes a display panel. The display panel may be a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-o led, a quantum dot light-emitting diode (QLED), or the like. In some embodiments, the terminal device 400 may include 1 or more display screens 494.

In some embodiments of the present application, when the display panel is made of OLED, AMOLED, FLED, or the like, the display screen 494 shown in fig. 11 may be bent. Here, the display screen 494 may be bent in such a manner that the display screen may be bent at any position to any angle and may be held at the angle, for example, the display screen 494 may be folded right and left from the middle. Or can be folded from the middle part up and down. In this application, the display screen that can be folded is referred to as a foldable display screen. The touch display screen may be a single screen, or a display screen formed by combining multiple screens together, which is not limited herein.

The display screen 494 of the terminal device 400 may be a flexible screen, which is currently being noted for its unique characteristics and great potential. Compared with the traditional screen, the flexible screen has the characteristics of strong flexibility and flexibility, can provide a new interaction mode based on the bendable characteristic for a user, and can meet more requirements of the user on the terminal. For a terminal configured with a foldable display screen, the foldable display screen on the terminal can be switched between a small screen in a folded state and a large screen in an unfolded state at any time. Therefore, the use of the split screen function by the user on the terminal configured with the foldable display screen is also increasing frequently.

The terminal is enabled 400 to perform the capture function via the ISP, camera 493, video codec, GPU, display screen 494 and application processor.

The ISP is used to process the data fed back by the camera 493. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be located in camera 493.

The camera 493 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the terminal device 400 may include 1 or more cameras 493.

The digital signal processor is used for processing digital signals, and can process other digital signals besides digital image signals. For example, when the terminal device 400 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The terminal device 400 may support one or more video codecs. In this way, the terminal device 400 can play or record video in a plurality of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor, which processes input information quickly by referring to a biological neural network structure, for example, by referring to a function of transmitting services between neurons in the human brain, and can also learn by itself continuously. The NPU can implement applications such as intelligent recognition of the terminal device 400, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 420 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the terminal device 400. The external memory card communicates with the processor 410 through the external memory interface 420 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 421 may be used to store one or more computer programs comprising instructions. The processor 410 can execute the above-mentioned instructions stored in the internal memory 421, so as to enable the terminal 400 to perform the method for displaying the off-screen display provided in some embodiments of the present application, and various applications and data processing, etc. The internal memory 421 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage program area may also store one or more applications (e.g., gallery, contacts, etc.), and the like. The storage data area may store data (such as photos, contacts, etc.) created during use of the terminal device 400, and the like. Further, the internal memory 421 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage components, flash memory components, universal Flash Storage (UFS), and the like. In some embodiments, the processor 410 may cause the terminal device 400 to execute the method for displaying the off-screen display provided in the embodiments of the present application, and other applications and data processing by executing instructions stored in the internal memory 421 and/or instructions stored in a memory provided in the processor 410. The terminal device 400 may implement an audio function through the audio module 470, the speaker 470A, the receiver 470B, the microphone 470C, the earphone interface 470D, and the application processor, etc. Such as music playing, recording, etc.

The sensor module 480 may include a pressure sensor 480A, a gyro sensor 480B, an air pressure sensor 480C, a magnetic sensor 480D, an acceleration sensor 480E, a distance sensor 480F, a proximity light sensor 480G, a fingerprint sensor 480H, a temperature sensor 480J, a touch sensor 480K, an ambient light sensor 480L, a bone conduction sensor 480M, and the like.

The present embodiment also provides a computer storage medium, where computer instructions are stored, and when the computer instructions are run on an electronic device, the electronic device is caused to execute the relevant method steps to implement the method for establishing a network connection in the foregoing embodiments.

The present embodiment also provides a computer program product, which when running on a computer, causes the computer to execute the relevant steps described above, so as to implement the method for establishing a network connection in the foregoing embodiments.

In addition, an apparatus, which may be specifically a chip, a component or a module, may include a processor and a memory connected to each other; the memory is used for storing computer execution instructions, and when the apparatus runs, the processor may execute the computer execution instructions stored by the memory, so that the chip executes the method for establishing a network connection in the above method embodiments.

The network device, the terminal device, the computer storage medium, the computer program product, or the chip provided in this embodiment are all configured to execute the corresponding method provided above, and therefore, the beneficial effects achieved by the method may refer to the beneficial effects in the corresponding method provided above, which are not described herein again.

Optionally, the method for establishing a network connection provided by the present application may include the following optional embodiments.

The first embodiment is as follows: a method for establishing network connection, wherein the method is applied to a terminal device, the terminal device supports a first SIM card and a second SIM card, and a network connection exists between the first SIM card and a network device, and the method comprises: the terminal equipment receives a first RRC message sent by the network equipment, wherein the first RRC message carries configuration information of the second SIM card access network; and the terminal equipment establishes network connection with the network equipment according to the configuration information.

The second embodiment: the method of the first embodiment, wherein the configuration information includes a cell radio network temporary identifier C-RNTI and radio resource information of the second SIM card.

Example three: the method of embodiment one or embodiment two, characterized in that the method further comprises: and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection establishment request, and the network connection establishment request is used for requesting to establish network connection between the second SIM card and the network equipment.

Example four: the method according to the third embodiment, wherein the sending, by the terminal device, the second RRC message to the network device includes: and when the second SIM card is in an idle state and the second SIM card needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

Example five: the method of embodiment one or embodiment two, characterized in that the method further comprises:

and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

Example six: the method according to the fifth embodiment 5, wherein the sending, by the terminal device, the second RRC message to the network device with the first SIM card includes: and when the second SIM card is in a deactivated state and needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

Example seven: the method according to any one of the third to sixth embodiments, wherein the second RRC message further carries first indication information, and the first indication information is used to indicate a disconnection manner for disconnecting the network connection between the first SIM card and the network device, and the disconnection manner includes suspension or release.

Example eight: the method of any one of embodiments one-seventh, wherein the method further comprises: and the terminal equipment receives a third RRC message sent by the network equipment through the network connection between the first SIM card and the network equipment, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

Example nine: the method as in any one of embodiments one-seventh, wherein the first RRC message is further used to indicate a disconnection of the network connection with the first SIM card.

Example ten: the method of any one of embodiments one-seventh, wherein the method further comprises: and the terminal equipment receives a third RRC message sent by the network equipment through the network connection between the second SIM card and the network equipment, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

Example eleven: a method of establishing a network connection, comprising: the method comprises the steps that network equipment acquires configuration information of a second SIM card of terminal equipment accessing a network, wherein the terminal equipment supports a first SIM card and the second SIM card, and network connection exists between the first SIM card and the network equipment; and the network equipment sends a first RRC message to the terminal equipment, wherein the first RRC message carries the configuration information.

Example twelve: the method of embodiment eleven, wherein the configuration information includes a cell radio network temporary identity (C-RNTI) of the second SIM card and radio resource information.

Example thirteen: the method of embodiment eleven or embodiment twelfth, wherein when the second SIM card is in an idle state, the method further comprises: and the network equipment receives a second RRC message sent by the terminal equipment, wherein the second RRC message carries a network connection establishment request which is used for requesting to establish network connection between the second SIM card and the network equipment.

Example fourteen: the method according to the thirteenth embodiment, wherein the acquiring, by the network device, the configuration information of the second SIM card of the terminal device accessing the network includes: and the network equipment generates the configuration information according to the network connection establishment request.

Example fifteen: the method of embodiment eleven or embodiment twelfth, wherein when the second SIM card is in a deactivated state, the method further comprises: and the network equipment receives a second RRC message sent by the terminal equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

Example sixteen: the method according to the fifteenth embodiment, wherein the acquiring, by the network device, the configuration information of the second SIM card access network of the terminal device includes: and the network equipment generates the configuration information according to the network connection recovery request.

Example seventeen: the method of any one of embodiments eleven to sixteen, further comprising: and the network equipment disconnects the network connection with the first SIM card.

Example eighteen: the method according to the seventeenth embodiment, wherein the second RRC message further carries first indication information, where the first indication information is used to indicate a disconnection manner for disconnecting the network connection between the first SIM card and the network device, where the disconnection manner includes suspension or release, and the network device disconnects the network connection with the first SIM card, including: and the network equipment disconnects the network connection with the first SIM card according to the disconnection mode indicated by the first indication information.

Example nineteenth: the method of any one of embodiments eleven to eighteen, further comprising: and the network equipment sends a third RRC message to the terminal equipment through the network connection with the first SIM card, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

Example twenty: the method of any one of embodiments eleven to eighteen, wherein the first RRC message is further used to indicate a disconnection of the network connection with the first SIM card.

Example twenty one: the method of any one of embodiments eleven to eighteen, further comprising: and the network equipment sends a third RRC message to the terminal equipment through the network connection with the second SIM card, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

Twenty-second embodiment is a method for establishing a network connection, where the method is applied to a communication system, the communication system includes a terminal device and a network device, the terminal supports a first SIM card and a second SIM card, and a network connection exists between the first SIM card and the network device, and the method includes: the network equipment acquires configuration information of the second SIM card access network; the network equipment sends a first RRC message to the terminal equipment, wherein the first RRC message carries the configuration information; the terminal equipment receives the first RRC message sent by the network equipment; and the terminal equipment establishes network connection with the network equipment according to the configuration information.

Example twenty three: the method of twenty-second embodiment, wherein the configuration information includes a cell radio network temporary identity C-RNTI and radio resource information of the second SIM card.

Example twenty-four: the method of embodiment twenty-two or embodiment twenty-three, wherein the method further comprises: and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection establishment request, and the network connection establishment request is used for requesting to establish network connection between the second SIM card and the network equipment.

Example twenty-five: the method according to twenty-fourth embodiment, wherein the sending, by the terminal device, the second RRC message to the network device includes: and when the second SIM card is in an idle state and the second SIM card needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

Example twenty-six: the method according to twenty-four or twenty-five embodiments, wherein the obtaining, by the network device, configuration information of the second SIM card access network includes: and the network equipment generates the configuration information according to the network connection establishment request.

Example twenty-seven: the method of embodiment twenty-two or embodiment twenty-three, wherein the method further comprises: and the terminal equipment sends a second RRC message to the network equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

Example twenty-eight: the method according to twenty-seventh embodiment, wherein the sending, by the terminal device, the second RRC message to the network device includes: and when the second SIM card is in a deactivated state and the second SIM card needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

Example twenty-nine: a method according to twenty-seventh or twenty-eight embodiment, wherein the acquiring, by the network device, the configuration information of the second SIM card access network includes: and the network equipment generates the configuration information according to the network connection recovery request.

Example thirty: the method of any of embodiments twenty-two to twenty-nine, further comprising: and the network equipment disconnects the network connection with the first SIM card.

Example thirty one: the method according to embodiment thirty, wherein the second RRC message further carries first indication information, where the first indication information is used to indicate a disconnection manner for disconnecting the network connection between the first SIM card and the network device, where the disconnection manner includes suspension or release, and the network device disconnects the network connection with the first SIM card, including: and the network equipment disconnects the network connection with the first SIM card according to the disconnection mode indicated by the first indication information.

Example thirty-two: the method of any of embodiments twenty-two to thirty-one, further comprising: and the network equipment sends a third RRC message to the terminal equipment through network connection with the first SIM card, wherein the third RRC message is used for indicating the disconnection of the network connection with the first SIM card.

Example thirty-three: the method of any of embodiments twenty-two through thirty-one, wherein the first RRC message is further configured to indicate a disconnection of the network connection with the first SIM card.

Example thirty-four: the method of any of embodiments twenty-two to thirty-one, further comprising: and the network equipment sends a third RRC message to the terminal equipment through the network connection with the second SIM card, wherein the third RRC message is used for indicating to disconnect the network connection with the first SIM card.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for establishing a network connection, the method being applied to a terminal device, the terminal device supporting a first Subscriber Identity Module (SIM) card and a second SIM card, the first SIM card and a network device having a network connection therebetween, the method comprising:

the terminal device sends a second RRC message to the network device, wherein the second RRC message carries a network connection establishment request and first indication information, the network connection establishment request is used for requesting to establish network connection between the second SIM card and the network device, the first indication information is used for indicating a disconnection mode for disconnecting the network connection between the first SIM card and the network device, and the disconnection mode comprises suspension or release;

the terminal equipment receives a first Radio Resource Control (RRC) message sent by the network equipment through network connection between the first SIM card and the network equipment, wherein the first RRC message carries configuration information of the second SIM card for accessing a network;

and the terminal equipment establishes network connection with the network equipment according to the configuration information.

2. The method of claim 1, wherein the configuration information comprises a cell radio network temporary identity (C-RNTI) and radio resource information of the second SIM card.

3. The method of claim 1, wherein the terminal device sends a second RRC message to the network device, comprising:

and when the second SIM card is in an idle state and needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

4. The method according to claim 1 or 2, characterized in that the method further comprises:

5. The method of claim 4, wherein the terminal device sends a second RRC message to the network device with the first SIM card, comprising:

and when the second SIM card is in a deactivated state and needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

6. A method of establishing a network connection, comprising:

when a second SIM card is in an idle state, a network device receives a second RRC message sent by a terminal device, where the second RRC message carries a network connection establishment request and first indication information, the network connection establishment request is used to request establishment of a network connection between the second SIM card and the network device, and the first indication information is used to indicate a disconnection manner for disconnecting a network connection between the first SIM card and the network device, where the disconnection manner includes suspension or release;

the method comprises the steps that network equipment acquires configuration information of a second Subscriber Identity Module (SIM) card of terminal equipment accessing a network, wherein the terminal equipment supports a first SIM card and a second SIM card, and network connection exists between the first SIM card and the network equipment;

and the network equipment sends a first Radio Resource Control (RRC) message to the terminal equipment through the network connection between the first SIM card and the network equipment, wherein the first RRC message carries the configuration information.

7. The method of claim 6, wherein the configuration information comprises a cell radio network temporary identity (C-RNTI) of the second SIM card and radio resource information.

8. The method of claim 6, wherein the network device obtaining configuration information of a second SIM card of the terminal device accessing the network comprises:

and the network equipment generates the configuration information according to the network connection establishment request.

9. The method of claim 6 or 7, wherein when the second SIM card is in a deactivated state, the method further comprises:

and the network equipment receives a second RRC message sent by the terminal equipment, wherein the second RRC message carries a network connection recovery request, and the network connection recovery request is used for requesting to recover the network connection between the second SIM card and the network equipment.

10. The method of claim 9, wherein the obtaining, by the network device, configuration information of a second SIM card of the terminal device accessing the network comprises:

and the network equipment generates the configuration information according to the network connection recovery request.

11. The method according to any one of claims 6 to 10, further comprising:

the network equipment disconnects network connection with the first SIM card;

and the network equipment disconnects the network connection with the first SIM card according to the disconnection mode indicated by the first indication information.

12. A method for establishing a network connection, the method being applicable to a communication system including a terminal device and a network device, the terminal supporting a first subscriber identity module, SIM, card and a second SIM card, and a network connection existing between the first SIM card and the network device, the method comprising:

the network equipment acquires configuration information of the second SIM card access network;

the network equipment sends a first Radio Resource Control (RRC) message to the terminal equipment through network connection between the first SIM card and the network equipment, wherein the first RRC message carries the configuration information;

the terminal equipment receives the first RRC message sent by the network equipment;

13. The method of claim 12, wherein the configuration information comprises a cell radio network temporary identity (C-RNTI) and radio resource information of the second SIM card.

14. The method of claim 12, wherein the terminal device sends a second RRC message to the network device, comprising:

and when the second SIM card is in an idle state and the second SIM card needs to initiate a service, the terminal equipment sends the second RRC message to the network equipment.

15. The method according to claim 12 or 14, wherein the network device obtaining the configuration information of the second SIM card access network comprises:

16. The method according to claim 12 or 13, characterized in that the method further comprises:

17. The method of claim 16, wherein the terminal device sends a second RRC message to the network device, comprising:

18. The method according to claim 16 or 17, wherein the network device obtains configuration information of the second SIM card access network, including:

19. The method according to any one of claims 12 to 18, further comprising:

and the network equipment disconnects the network connection with the first SIM card.

20. The method of claim 19, wherein the network device disconnects the network connection with the first SIM card, comprising:

21. An apparatus for establishing a network connection, comprising means or modules for performing the method of any of claims 1 to 11.

22. An apparatus for establishing a network connection, comprising a processor and a memory, the memory having instructions stored therein, which when executed by the processor, cause the apparatus to perform the method of any of claims 1 to 11.

23. A computer-readable storage medium, in which a computer program or instructions are stored which, when executed by a communication apparatus, carry out the method of any one of claims 1 to 11.