A communication method, device, terminal device, and network device

Abstract

An embodiment of the present application provides a communication method, apparatus, terminal device, and network device. The method includes: The terminal device receives a paging message sent by a first network, where the first network is the network corresponding to a first communication card in the terminal device; The terminal device determines whether to respond to the paging message based on the paging cause in the paging message, and indicates to the first network that the terminal device does not respond to the paging message when it is determined not to respond to the paging message.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202080104949.X, with the invention name of "A Communication Method and Device, Terminal Device, Network Device", which is the entry of the PCT international patent application PCT / CN2020 / 114604 with the application date of September 10, 2020, into the Chinese national phase. Technical Field

[0002] Embodiments of this application relate to the field of mobile communication technologies, and particularly relate to a communication method and device, terminal device, and network device. Background Art

[0003] A dual-SIM mobile phone means that a mobile phone can hold two communication cards simultaneously. Currently, if one communication card in a dual-SIM mobile phone is in use for a service, and the other communication card also needs to perform a service, for example, the other communication card receives a paging and needs to receive the service, or the other communication card initiates a service, there will be a problem of service conflict between the two communication cards, and how to handle the service of the other communication card needs to be solved. Summary of the Invention

[0004] Embodiments of this application provide a communication method and device, terminal device, and network device.

[0005] The communication method provided by the embodiments of this application includes:

[0006] A terminal device receives a paging message sent by a first network, where the first network is the network corresponding to a first communication card in the terminal device;

[0007] The terminal device determines whether to respond to the paging message based on the paging cause in the paging message, and in the case of determining not to respond to the paging message, indicates to the first network that the terminal device does not respond to the paging message.

[0008] The communication method provided by the embodiments of this application includes:

[0009] A first base station sends a paging message to a terminal device, where the first base station is the base station corresponding to a first communication card in the terminal device, and the paging cause in the paging message is used for the terminal device to determine whether to respond to the paging message;

[0010] The first base station receives indication information sent by the terminal device, where the indication information is used to indicate that the terminal device does not respond to the paging message.

[0011] The communication method provided by the embodiments of this application includes:

[0012] The terminal device receives service data sent by a second network, where the second network is the network corresponding to a second communication card in the terminal device, and the terminal device also has a first communication card;

[0013] The terminal device determines the RRC connection reason of the first communication card, and based on the RRC connection reason, sends an RRC connection establishment request message or an RRC connection resume request message to a first network, where the first network is the network corresponding to the first communication card of the terminal device.

[0014] The terminal device provided in an embodiment of this application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above communication method.

[0015] The network device provided in an embodiment of this application includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the above communication method.

[0016] The chip provided in an embodiment of this application is used to implement the above communication method.

[0017] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device installed with the chip executes the above communication method.

[0018] The computer-readable storage medium provided in an embodiment of this application is used to store a computer program, and the computer program enables a computer to execute the above communication method.

[0019] The computer program product provided in an embodiment of this application includes computer program instructions, and the computer program instructions enable a computer to execute the above communication method.

[0020] The computer program provided in an embodiment of this application, when running on a computer, enables the computer to execute the above communication method.

[0021] Through the above technical solution, after receiving the paging message corresponding to the first communication card, the terminal device determines whether to respond to the paging message based on the paging cause in the paging message, and indicates to the network that the terminal device does not respond to the paging message when it is determined not to respond to the paging message. Since the paging cause indicates the service or reason that triggers the paging message, the terminal device can determine whether to respond to the paging message based on the paging cause. Responding to the paging message means that the first communication card of the terminal device receives the service corresponding to the paging message, and not responding to the paging message means that the first communication card of the terminal device does not accept the service corresponding to the paging message, thereby ensuring that high-priority services can proceed normally and guaranteeing the user experience. For a dual-card terminal device, it can ensure the coordinated operation of the two communication cards of the terminal device, that is, one communication card (such as the first communication card) will not affect the other communication card (such as the second communication card). BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0023] Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

[0024] Figure 2 is a flowchart of a communication method provided by an embodiment of the present application Figure 1 ;

[0025] Figure 3 is a schematic diagram of a dual communication card provided by an embodiment of the present application;

[0026] Figure 4 is a flowchart of a communication method provided by an embodiment of the present application Figure 2 ;

[0027] Figure 5 is a flowchart of a method for a base station to determine not to respond to paging provided by an embodiment of the present application;

[0028] Figure 6 is a flowchart of a communication method provided by an embodiment of the present application Figure 3 ;

[0029] Figure 7 is a schematic diagram of the structural composition of a communication device provided by an embodiment of the present application Figure 1 ;

[0030] Figure 8 is a schematic diagram of the structural composition of a communication device provided by an embodiment of the present application Figure 2 ;

[0031] Figure 9 It is a schematic diagram of the structural composition of the communication device provided by the embodiment of the present application Figure 3 ;

[0032] Figure 10 It is a schematic structural diagram of a communication device provided by the embodiment of the present application;

[0033] Figure 11 It is a schematic structural diagram of the chip provided by the embodiment of the present application;

[0034] Figure 12 It is a schematic block diagram of a communication system provided by the embodiment of the present application. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0036] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, 5G communication system or future communication systems, etc.

[0037] Exemplarily, the communication system 100 to which the embodiments of the present application are applied is as Figure 1 shown. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network or a network device in a future communication system, etc.

[0038] The communication system 100 further includes at least one terminal 120 within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, being connected via a wired line, such as via a Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, Wireless Local Area Network (WLAN), digital television network such as a DVB-H network, satellite network, AM-FM broadcast transmitter; and / or a device of another terminal configured to receive / transmit communication signals; and / or an Internet of Things (IoT) device. A terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephone with data processing, facsimile, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices including radiotelephone transceivers. A terminal may refer to an access terminal, User Equipment (UE), user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. An access terminal may be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

[0039] Optionally, Device to Device (D2D) communication may be performed between the terminals 120.

[0040] Optionally, a 5G communication system or a 5G network may also be referred to as a New Radio (NR) system or an NR network.

[0041] Figure 1 Exemplarily, a network device and two terminals are shown. Optionally, the communication system 100 may include multiple network devices, and the coverage range of each network device may include other numbers of terminals. The embodiments of the present application do not limit this.

[0042] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity. The embodiments of the present application do not limit this.

[0043] It should be understood that in the embodiments of the present application, a device with communication functions in a network / system may be referred to as a communication device. Taking Figure 1 the shown communication system 100 as an example, the communication devices may include a network device 110 and a terminal 120 with communication functions. The network device 110 and the terminal 120 may be the specific devices described above and will not be elaborated here; the communication devices may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity. The embodiments of the present application do not limit this.

[0044] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term " / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0045] To facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the technical solutions related to the embodiments of the present application.

[0046] With the pursuit of rate, latency, high-speed mobility, energy efficiency by people and the diversity and complexity of services in future life, for this reason, the 3rd Generation Partnership Project (3 rd Generation Partnership Project, 3GPP) international standard organization began to research and develop 5G. The main application scenarios of 5G are: enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency Communications (URLLC), and massive Machine-Type Communications (mMTC).

[0047] On the one hand, eMBB still aims at users' access to multimedia content, services and data, and its demand is growing very rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., there are also significant differences in its capabilities and requirements. Therefore, it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include industrial automation, power automation, remote medical operations (surgery), traffic safety guarantee, etc. Typical features of mMTC include high connection density, small data volume, latency-insensitive services, low cost and long service life of modules, etc.

[0048] RRC state

[0049] To reduce the signaling in the air interface and quickly restore the radio connection and data service, 5G defines a new Radio Resource Control (RRC) state, namely the RRC_INACTIVE state. This state is different from the RRC_IDLE state and the RRC_ACTIVE state.

[0050] Among them,

[0051] 1) RRC_IDLE state (abbreviated as idle state): The mobility is based on cell selection and reselection of the terminal device. Paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no terminal device context on the base station side, and there is no RRC connection.

[0052] 2) RRC_CONNECTED state (abbreviated as connected state): There is an RRC connection, and there is a terminal device context on both the base station side and the terminal device side. The network side knows the location of the terminal device at the specific cell level. The mobility is network-side controlled mobility. Unicast data can be transmitted between the terminal device and the base station.

[0053] 3) RRC_INACTIVE state (abbreviated as the inactive state): The mobility is based on cell selection and reselection of the terminal device. There is a connection between the access network and the core network. The context of the terminal device exists on a certain base station. Paging is triggered by the Radio Access Network (RAN). The paging area based on the RAN is managed by the RAN. The network side knows the location of the terminal device at the RAN-based paging area level. When the terminal device moves within the Radio Access Network Notification Area (RNA) configured by the RAN, it does not need to notify the network side, but when it moves out of the RNA, it needs to notify the network side.

[0054] Dual SIM Dual Standby / Dual Network Dual Standby

[0055] A dual SIM dual standby mobile phone means that a mobile phone can hold two communication cards at the same time, and both of these communication cards are in the standby state. Dual SIM dual standby generally refers to dual SIM dual standby of the same network mode, such as dual SIM dual standby of the GSM network, dual SIM dual standby of the CDMA network, and dual SIM dual standby of the PHS network.

[0056] Dual network dual standby means that a mobile phone can insert two communication cards of different networks at the same time and keep them both powered on. Users can make calls, answer calls, and send and receive text messages arbitrarily without switching networks.

[0057] Currently, mobile phones generally do not support pure dual transmit and dual receive (abbreviated as dual mode). Dual transmit and dual receive means that a mobile phone simultaneously performs data uplink transmission and downlink reception on two networks through two communication cards. Generally speaking, most mobile phones only support single transmit and single receive or single transmit and dual receive, which means that a mobile phone can only perform services on one communication card at a certain moment. However, implementing dual mode is a trend in the future development of mobile phones. In 5G, for the two communication cards of a mobile phone that supports dual SIM dual standby or dual network dual standby, one communication card can camp on an LTE cell, and the other communication card can camp on an NR cell; or, both communication cards can camp on an NR cell. On the other hand, the two communication cards can be communication cards of the same operator or communication cards of different operators.

[0058] Currently, if one communication card in a dual SIM mobile phone is performing a service, and the other communication card also needs to perform a service, for example, the other communication card receives a paging and needs to receive the service, or the other communication card initiates a service, there will be a problem of service conflict between the two communication cards. How to handle the service of the other communication card and how to coordinate the services of the two communication cards need to be solved. For this reason, the following technical solutions of the embodiments of this application are proposed.

[0059] It should be noted that the "terminal device" in the embodiments of the present application may be a mobile phone, a tablet computer, a wearable device, etc. The terminal device has at least two communication cards. For example, the terminal device has 2 communication cards or 3 communication cards, etc. The following embodiments will be described by taking two communication cards as an example, but it is not limited thereto. The solutions with more than two communication cards are also applicable to the technical solutions of the embodiments of the present application.

[0060] It should be noted that the embodiments of the present application do not limit the types of the first communication card and the second communication card. For example, both the first communication card and the second communication card are Subscriber Identity Module (SIM) cards. For example, both the first communication card and the second communication card are Universal Subscriber Identity Module (USIM) cards. For example, the first communication card is a SIM card and the second communication card is a USIM card. For example, the first communication card is a USIM card and the second communication card is a SIM card.

[0061] On the other hand, the embodiments of the present application do not limit the network types supported by the first communication card and the second communication card. For example, the first communication card supports an LTE network (i.e., the first base station corresponding to the first communication card is an LTE base station), and the second communication card supports an NR network (i.e., the second base station corresponding to the second communication card is an NR base station). For example, both the first communication card and the second communication card support an NR network (i.e., the first base station corresponding to the first communication card and the second base station corresponding to the second communication card are both NR base stations).

[0062] On yet another aspect, the embodiments of the present application do not limit the operators to which the first communication card and the second communication card belong. For example, the first communication card and the second communication card may belong to the same operator or different operators.

[0063] Figure 2 It is a schematic flow chart of the communication method provided by the embodiments of the present application Figure 1 , such as Figure 2 shown, the communication method includes the following steps:

[0064] Step 201: The terminal device receives a paging message sent by a first network, and the first network is the network corresponding to the first communication card in the terminal device.

[0065] In an optional manner of the present application, the terminal device also receives service data sent by a second network, and the second network is the network corresponding to the second communication card in the terminal device.

[0066] For example, the terminal device has a USIM-A card (i.e., the second communication card) and a USIM-B card (i.e., the first communication card). The terminal device receives services on the network corresponding to the USIM-A card (i.e., the second network), and the terminal device receives a paging message on the network corresponding to the USIM-B card (i.e., the first network).

[0067] Referring to Figure 3 , the terminal device has a first communication card and a second communication card. Among them, the network corresponding to the first communication card is the first network, and the network corresponding to the second communication card is the second network. On the one hand, the terminal device can access the first network through the first communication card to implement services on the first network. On the other hand, the terminal device can access the second network through the second communication card to implement services on the second network. Here, the types of the first network and the second network can be the same or different. For example, the first network is an LTE network and the second network is an NR network. Another example is that both the first network and the second network are NR networks.

[0068] In the embodiments of the present application, the first communication card of the terminal device is in an idle state or an inactive state. The second communication card of the terminal device is in a connected state. For example: There are two USIM cards in the terminal device, namely USIM-A card and USIM-B card. Among them, the USIM-A card has ongoing services and is in a connected state; the USIM-B card is in an idle state or an inactive state and receives a paging message.

[0069] It should be noted that the communication between the terminal device and the first network is implemented through the first communication card, and the communication between the terminal device and the second network is implemented through the second communication card. For example: There are two USIM cards in the terminal device, namely USIM-A card and USIM-B card. Among them, the terminal device can communicate with the first network through the USIM-A card, and the terminal device can communicate with the second network through the USIM-B card.

[0070] Step 202: The terminal device determines whether to respond to the paging message based on the paging cause in the paging message, and indicates to the first network that the terminal device does not respond to the paging message when it is determined not to respond to the paging message.

[0071] In the embodiments of the present application, the terminal device receives a paging message sent by the first network. Specifically: The AS layer of the first communication card of the terminal device receives the paging message sent by the first network. Here, the paging message carries a paging cause, where the paging cause is used to indicate the service or reason that triggers the paging message, and the paging cause is used to indicate that the service that triggers the paging message is a voice call service or a video call service, etc.

[0072] It should be noted that the interaction between the terminal device and the network in this application essentially refers to the interaction between the first communication card in the terminal device and the network. The AS layer of the terminal device essentially refers to the AS layer of the first communication card in the terminal device. Similarly, the NAS layer of the terminal device essentially refers to the NAS layer of the first communication card in the terminal device.

[0073] In the embodiment of this application, after the AS layer of the first communication card of the terminal device receives the paging message sent by the first network, it can determine whether to respond to the paging message through the NAS layer based on the paging cause in the paging message, or it can also determine whether to respond to the paging message through the AS layer based on the paging cause in the paging message. The following is an explanation by cases.

[0074] ● Case 1: The NAS layer of the terminal device determines whether to respond to the paging message based on the paging cause in the paging message.

[0075] For this case, the paging cause is transparent to the AS layer. After the AS layer of the terminal device receives the paging message sent by the first network, it sends the paging cause in the paging message to the NAS layer of the terminal device; the NAS layer of the terminal device determines whether to respond to the paging message based on the paging cause. For example: If the paging cause indicates paging triggered by a voice service, it is determined to respond to the paging message; otherwise, it does not respond to the paging message.

[0076] A) In an optional manner, the first communication card is in the idle state. The NAS layer of the terminal device determines the first information based on the paging cause and sends the first information to the AS layer of the terminal device; the AS layer of the terminal device initiates an RRC connection establishment process based on the first information.

[0077] In an optional manner, the first information includes at least one of the following:

[0078] Access category, and the access category is access category 0;

[0079] RRC connection cause, and the RRC connection cause is called access (mt-Access);

[0080] NAS message, and the NAS message is a service request message.

[0081] In another optional manner, the first information includes at least one of the following:

[0082] Access category, and the access category is access category 3;

[0083] The reason for the RRC connection, where the reason for the RRC connection is mo-Signalling (mobile-originated signalling).

[0084] The NAS message, where the NAS message carries first indication information for indicating that the terminal device does not respond to the paging message and / or indicating that the core network stops paging the terminal device.

[0085] In the above solution, access category 0 and access category 3 are two access categories, as shown in Table 1 below. Among them, the type of access attempt for access category 0 is MO signalling resulting from paging, and the type of access attempt for access category 3 is MO signalling on NAS level resulting from other than paging.

[0086]

[0087]

[0088] Table 1

[0089] In the above solution, the first indication information can also be referred to as busy indication. Among them, the first indication information is used to indicate that the terminal device does not respond to the paging message and / or indicate that the core network stops paging the terminal device. Here, the terminal device not responding to the paging message can also indicate that the terminal device does not receive the service data corresponding to the paging message. After obtaining the first indication information, the core network stops paging the terminal device.

[0090] In the above solution, the AS layer of the terminal device initiates an RRC connection establishment process based on the first information, including:

[0091] The AS layer of the terminal device determines whether to allow access to the first network based on the access category; in the case of allowing access to the first network, the AS layer of the terminal device sends an RRC connection establishment request message to the first network, and the RRC connection establishment request message carries the reason for the RRC connection. Further, the AS layer of the terminal device receives the RRC connection establishment message sent by the first network and sends an RRC connection establishment completion message to the first network, and the RRC connection establishment completion message carries the NAS message. In this way, the RRC connection establishment process is completed.

[0092] Here, determining whether to allow access to the first network based on the access category can be achieved through the following method: determining the UAC restriction information set (UAC-BarringInfoSet) corresponding to the access category, and performing an access control operation based on the UAC restriction information set, so as to determine whether to allow access to the first network. Here, the UAC restriction information set includes:

[0093] UAC barring factor (uac-BarringFactor);

[0094] UAC barring time (uac-BarringTime);

[0095] UAC barring for access identity (uac-BarringForAccessIdentity).

[0096] Performing an access control operation based on the UAC restriction information set includes:

[0097] 1) If the bit corresponding to the access identity in uac-BarringForAccessIdentity is set to 0, it indicates that access is allowed. If the corresponding bit is set to 1, it is necessary to further judge through the following step 2);

[0098] 2) Generate a random number (rand), where the range of rand is 0 ≤ rand < 1. If the random number is lower than uac-BarringFactor, it indicates that access is allowed, otherwise it indicates that access is prohibited. If access is prohibited, generate a random number (rand), where the range of rand is 0 ≤ rand < 1, start T390 and T390 = (0.7 + 0.6 × rand) × uac-BarringTime.

[0099] B) In an optional manner, the first communication card is in an inactive state. The NAS layer of the terminal device determines the second information based on the paging reason and sends the second information to the AS layer of the terminal device; the AS layer of the terminal device initiates an RRC connection restoration process based on the second information.

[0100] In an optional manner, the second information includes at least one of the following:

[0101] Access category, and the access category is access category 0;

[0102] RRC connection reason, and the RRC connection reason is called access mt-Access;

[0103] Second indication information, and the second indication information is used to indicate whether the first communication card responds to the paging message.

[0104] In another alternative, the second information includes at least one of the following:

[0105] Access category, and the access category is access category 3;

[0106] RRC connection cause, and the RRC connection cause is originating signalling mo-Signalling;

[0107] Second indication information, and the second indication information is used to indicate whether the first communication card responds to the paging message.

[0108] In the above solution, the AS layer of the terminal device initiates an RRC connection recovery process based on the second information, including:

[0109] The AS layer of the terminal device sends an RRC connection recovery request message to the first network. Among them, if the second indication information indicates that the terminal device does not respond to the paging message, then:

[0110] 1. Explicit indication method: The RRC connection recovery request message carries third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message; or,

[0111] 2. Implicit indication method: The first logical channel identifier (Logical Channel Identifier, LCID) of the common control channel (Common Control Channel, CCCH) corresponding to the RRC connection recovery request message is used to indicate that the terminal device does not respond to the paging message.

[0112] Here, for the implicit indication method, a new LCID (referred to as the first LCID) is defined for the CCCH. This new LCID is used to indicate that the terminal device does not respond to the paging message or is used to indicate that the purpose of the terminal device initiating the RRC connection recovery is to notify the network side that the terminal device does not respond to the paging. Specifically, the terminal device sends an RRC connection recovery request message through the CCCH (that is, the RRC connection recovery request message is carried in the CCCH), and the LCID of this CCCH is used to indicate that the terminal device does not respond to the paging message. Correspondingly, the packet header corresponding to the RRC connection recovery request message in the MAC TB is the first packet header, and the LCID in the first packet header is the first LCID, that is: the RRC connection recovery request message corresponding in the MAC TB includes carrying the first LCID.

[0113] ● Case 2: The AS layer of the terminal device determines whether to respond to the paging message based on the paging cause in the paging message.

[0114] For this case, the paging cause is opaque to the AS layer. After the AS layer of the terminal device receives the paging message sent by the first network, it obtains the paging cause in the paging message; the NAS layer of the terminal device determines whether to respond to the paging message based on the paging cause. For example: if the paging cause indicates paging triggered by a voice service, it is determined to respond to the paging message, otherwise, it does not respond to the paging message.

[0115] C) In an optional manner, the first communication card is in an inactive state, and the AS layer of the terminal device initiates an RRC connection resume procedure.

[0116] In the above solution, the AS layer of the terminal device initiating the RRC connection resume procedure includes:

[0117] The AS layer of the terminal device sends an RRC connection resume request message to the first network. Among them, if the AS layer determines not to respond to the paging message, then:

[0118] 1. Explicit indication method: The RRC connection resume request message carries third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message; or,

[0119] 2. Implicit indication method: The first LCID of the CCCH corresponding to the RRC connection resume request message is used to indicate that the terminal device does not respond to the paging message.

[0120] Here, for the implicit indication method, a new LCID (referred to as the first LCID) is defined for the CCCH. This new LCID is used to indicate that the terminal device does not respond to the paging message or to indicate that the purpose of the terminal device initiating the RRC connection resume is to notify the network side that the terminal device does not respond to the paging message. Specifically, the terminal device sends an RRC connection resume request message through the CCCH (that is, the RRC connection resume request message is carried in the CCCH), and the LCID of this CCCH is used to indicate that the terminal device does not respond to the paging message. Correspondingly, the packet header corresponding to the RRC connection resume request message in the MAC TB is the first packet header, and the LCID in the first packet header is the first LCID, that is: the RRC connection resume request message in the MAC TB correspondingly includes carrying the first LCID.

[0121] Figure 4 It is a schematic flow of the communication method provided by the embodiments of the present application Figure 2 , such as Figure 4 shown, the communication method includes the following steps:

[0122] Step 401: The first base station sends a paging message to the terminal device. The first base station is the base station corresponding to the first communication card in the terminal device, and the paging reason in the paging message is used for the terminal device to determine whether to respond to the paging message.

[0123] In the embodiments of the present application, the terminal device has a first communication card and a second communication card. Among them, the network corresponding to the first communication card is the first network, and the network corresponding to the second communication card is the second network. The base station covering the first network is called the first base station (that is, the base station corresponding to the first communication card), and the first base station can also be called the target base station. The first base station sends a paging message to the terminal device, and this paging message is used to page the first communication card of the terminal device. Among them, the paging reason in the paging message is used for the terminal device to determine whether to respond to the paging message. Here, the terminal device determines whether to respond to the paging message based on the paging reason in the paging message, which can refer to the description of the foregoing Figure 2 related methods and will not be elaborated here.

[0124] Step 402: The first base station receives the indication information sent by the terminal device, and the indication information is used to indicate that the terminal device does not respond to the paging message.

[0125] In the embodiments of the present application, the terminal device is in the inactive state. Corresponding to the B) solution in Case 1 or the C) solution in Case 2 of the foregoing Figure 2 related methods, the first base station can receive the indication information sent by the terminal device in the following ways:

[0126] 1. Explicit indication method: The first base station receives the RRC connection restoration request message sent by the terminal device. The RRC connection restoration request message carries the third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message; or,

[0127] 2. Implicit indication method: The first base station receives the RRC connection restoration request message sent by the terminal device, and the first LCID of the CCCH corresponding to the RRC connection restoration request message is used to indicate that the terminal device does not respond to the paging message.

[0128] Here, for the implicit indication method, a new LCID (referred to as the first LCID) is defined for the CCCH. This new LCID is used to indicate that the terminal device does not respond to the paging message or to indicate that the terminal device initiates RRC connection recovery for the purpose of notifying the network side that the terminal device does not respond to the paging. Specifically, the terminal device sends an RRC connection recovery request message through the CCCH (that is, the RRC connection recovery request message is carried in the CCCH), and the LCID of this CCCH is used to indicate that the terminal device does not respond to the paging message. Correspondingly, the packet header corresponding to the RRC connection recovery request message in the MAC TB is the first packet header, and the LCID in the first packet header is the first LCID, that is: the RRC connection recovery request message in the MAC TB correspondingly includes carrying the first LCID.

[0129] In the embodiment of the present application, after the first base station receives the indication information, the first base station sends a context request message to the second base station. The context request message carries the fourth indication information, and the fourth indication information is used to indicate that the terminal device does not respond to the paging message and / or for the second base station to determine not to migrate the context of the terminal device; the first base station receives the context request failure message sent by the second base station, and the context request failure message carries an RRC release message; the first base station sends an RRC release message to the terminal device. Here, optionally, the second base station is the anchor base station.

[0130] In the above solution, after the second base station receives the context request message, it determines not to migrate the context of the terminal device according to the fourth indication information, and sends a context request failure message to the first base station, where the context request failure message carries an RRC release message (that is, RRC Release PDCP PDU). Then, the first base station sends an RRC release message to the terminal device.

[0131] In an optional manner, the fourth indication information is forwarded by the second base station to the core network control plane network element, and the fourth indication information is used for the core network control plane network element to notify the core network user plane network element to stop sending the downlink data of the terminal device to the second base station and cache the downlink data.

[0132] Here, optionally, the core network control plane network element is the AMF, and the core network user plane network element is the UPF. The second base station notifies the AMF of the indication information (that is, the fourth indication information) about the terminal device not responding to paging and / or not performing data reception, and the AMF notifies the UPF to stop sending the downlink data of the terminal device to the second base station and cache the downlink data of the terminal device.

[0133] In the above solution, the paging message is triggered by the second base station. For example, when the downlink data of the terminal device reaches the second base station, the second base station triggers paging for the terminal device and notifies the base stations within the RNA (such as the first base station) to send a paging message to the terminal device. Here, the paging cause in the paging message is notified by the core network control plane network element to the second base station.

[0134] Here, optionally, the core network control plane network element is the AMF. Before the second base station notifies the first base station to send a paging message carrying the paging cause, the AMF notifies the second base station of the paging cause.

[0135] Figure 5 It is a schematic flow diagram of the method for a base station not to respond to paging provided by an embodiment of the present application. As Figure 5 shown, it includes the following steps:

[0136] Step 501: The anchor base station sends an RRC release message to the terminal device.

[0137] Here, the RRC release message carries RNA configuration information. After receiving the RRC release message, the terminal device enters the inactive state.

[0138] Step 502: The terminal device sends an RRC connection resume request message to the target base station and indicates that the terminal device does not respond to the paging message.

[0139] Here, the terminal device sends an RRC connection resume request message to the target base station through SRB0. Optionally, the RRC connection resume request message carries a short MAC-I and an I-RNTI.

[0140] Step 503: The target base station sends a context request message to the anchor base station, and the context request message carries an indication information that the terminal device does not respond to the paging message.

[0141] Step 504: The anchor base station determines not to migrate the context of the terminal device according to the indication information.

[0142] Step 505: The anchor base station sends a context request failure message to the target base station, and the context request failure message carries an RRC released PDCP PDU.

[0143] Step 506: The target base station sends an RRC release message to the terminal device.

[0144] Here, the target base station sends an RRC release message to the terminal device through SRB1. After receiving the RRC release message, the terminal device enters the inactive state or the idle state.

[0145] Step 507: The anchor base station sends the indication information that the terminal device does not respond to the paging message to the AMF.

[0146] Step 508: AMF notifies UPF to stop sending downlink data to the terminal device and cache the downlink data.

[0147] Figure 6 This is a flow chart of the communication method provided in the embodiment of the present application. Figure 3 ,like Figure 6 As shown, the communication method comprises the following steps:

[0148] Step 601: The terminal device receives service data sent by a second network, where the second network is a network corresponding to a second communication card in the terminal device, and the terminal device also has a first communication card.

[0149] In the embodiment of the present application, the terminal device has a first communication card and a second communication card, wherein the network corresponding to the first communication card is the first network, and the network corresponding to the second communication card is the second network. The second communication card is in a connected state, and the terminal device receives service data on the second network corresponding to the second communication card. The first communication card is in an idle state or an inactive state, and the terminal device performs UE-initial MO-data RRC connection establishment or recovery, or UE-initial MO-signalling RRC connection establishment or recovery, or UE-initial high-priority MO-data RRC connection establishment or recovery for the first communication card in an idle state or an inactive state.

[0150] Step 602: The terminal device determines the RRC connection reason of the first communication card, and sends an RRC connection establishment request message or an RRC connection recovery request message to a first network based on the RRC connection reason, where the first network is a network corresponding to the first communication card of the terminal device.

[0151] In an embodiment of the present application, the NAS layer of the terminal device triggers the establishment or recovery of an RRC connection to the AS layer of the terminal device, and the NAS layer of the terminal device sends an RRC connection cause to the AS layer of the terminal device, and the AS layer of the terminal device sends an RRC connection establishment request message or an RRC connection recovery request message to the first network based on the RRC connection cause. Optionally, the terminal device sends an RRC connection release request message to the second network.

[0152] It should be noted that in the above solution, the AS layer of the terminal device substantially refers to the AS layer of the first communication card in the terminal device. Similarly, the NAS layer of the terminal device substantially refers to the NAS layer of the first communication card in the terminal device.

[0153] For example: The terminal device receives services through the USIM-A card, the USIM-B card of the terminal device is in an idle state or an inactive state, the NAS layer of the USIM-B card triggers the establishment or restoration of an RRC connection to the AS layer, so that the AS layer of the USIM-B card initiates the process of establishing or restoring an RRC connection to the network corresponding to the USIM-B card. Further, the AS layer of the USIM-A card sends an RRC connection release request to the network corresponding to the USIM-A card.

[0154] In the above solution, the reasons for the RRC connection sent by the AS layer of the first communication card to the AS layer can be implemented as follows:

[0155] 1) The reason for the RRC connection is a mobile-originated signalling (MO-signalling) or a mobile-originated data (MO-data).

[0156] 2) The reason for the RRC connection is an emergency or a high-priority access.

[0157] 3) The reason for the RRC connection is a mobile-originated voice call (mo-VoiceCall), or a mobile-originated video call (mo-VideoCall), or a mobile-originated short message service (mo-SMS).

[0158] 4) The reason for the RRC connection is an mps-PriorityAccess or an mcs-PriorityAccess.

[0159] 5) The reason for the RRC connection is a radio access network notification area update (rna-Update).

[0160] Figure 7 It is a schematic diagram of the structural composition of the communication device provided by the embodiment of the present application Figure 1 , applied to a terminal device, such as Figure 7 shown, the communication device includes:

[0161] A receiving unit 701, configured to receive a paging message sent by a first network, where the first network is a network corresponding to a first communication card in the terminal device;

[0162] A determining unit 702, configured to determine whether to respond to the paging message based on the paging reason in the paging message;

[0163] An indicating unit 703, configured to indicate to the first network that the terminal device does not respond to the paging message when it is determined not to respond to the paging message.

[0164] In an alternative manner, the receiving unit 701 is further configured to receive service data sent by a second network, where the second network is the network corresponding to a second communication card in the terminal device.

[0165] In an alternative manner, the determining unit 702 is configured to determine, based on a paging cause in the paging message, whether to respond to the paging message through the NAS layer of the terminal device.

[0166] In an alternative manner, when the first communication card is in an idle state, the apparatus further includes:

[0167] A sending unit 704, configured to send the paging cause in the paging message to the NAS layer of the terminal device through the AS layer of the terminal device;

[0168] The determining unit 702 is further configured to determine first information based on the paging cause through the NAS layer of the terminal device;

[0169] The sending unit 704 is further configured to send the first information to the AS layer of the terminal device through the NAS layer of the terminal device; and initiate an RRC connection establishment process based on the first information through the AS layer of the terminal device.

[0170] In an alternative manner, the first information includes at least one of the following:

[0171] An access category, where the access category is access category 0;

[0172] An RRC connection cause, where the RRC connection cause is called access mt-Access;

[0173] A NAS message, where the NAS message is a service request message.

[0174] In an alternative manner, the first information includes at least one of the following:

[0175] An access category, where the access category is access category 3;

[0176] An RRC connection cause, where the RRC connection cause is originating signalling mo-Signalling;

[0177] A NAS message, where the NAS message carries first indication information, and the first indication information is used to indicate that the terminal device does not respond to the paging message and / or indicate that the core network stops paging the terminal device.

[0178] In an alternative manner, the determining unit 702 is configured to determine, based on the access category through the AS layer of the terminal device, whether to allow access to the first network;

[0179] The sending unit 704 is configured to, when access to the first network is allowed, send an RRC connection establishment request message to the first network through the AS layer of the terminal device, where the RRC connection establishment request message carries the RRC connection cause.

[0180] In an alternative manner, the receiving unit 701 is further configured to receive, through the AS layer of the terminal device, an RRC connection establishment message sent by the first network;

[0181] The sending unit 704 is further configured to send an RRC connection establishment completion message to the first network, where the RRC connection establishment completion message carries the NAS message.

[0182] In an alternative manner, the first communication card is in an inactive state, and the apparatus further includes:

[0183] The sending unit 704 is configured to send, through the AS layer of the terminal device, the paging cause in the paging message to the NAS layer of the terminal device;

[0184] The determining unit 702 is further configured to determine second information based on the paging cause through the NAS layer of the terminal device;

[0185] The sending unit 704 is further configured to send the second information to the AS layer of the terminal device through the NAS layer of the terminal device; initiate an RRC connection restoration process based on the second information through the AS layer of the terminal device.

[0186] In an alternative manner, the second information includes at least one of the following:

[0187] An access category, where the access category is access category 0;

[0188] An RRC connection cause, where the RRC connection cause is called access mt-Access;

[0189] A second indication information, where the second indication information is used to indicate whether the first communication card responds to the paging message.

[0190] In an alternative manner, the second information includes at least one of the following:

[0191] An access category, where the access category is access category 3;

[0192] The reason for the RRC connection, where the reason for the RRC connection is the originating signaling mo-Signalling;

[0193] The second indication information, where the second indication information is used to indicate whether the first communication card responds to the paging message.

[0194] In an optional manner, the sending unit 704 is configured to send an RRC connection restoration request message to the first network through the AS layer of the terminal device. Wherein, if the second indication information indicates that the terminal device does not respond to the paging message, the RRC connection restoration request message carries third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message.

[0195] In an optional manner, the sending unit 704 is configured to send an RRC connection restoration request message to the first network through the AS layer of the terminal device. Wherein, if the second indication information indicates that the terminal device does not respond to the paging message, the first LCID of the CCCH corresponding to the RRC connection restoration request message is used to indicate that the terminal device does not respond to the paging message.

[0196] In an optional manner, the determining unit 702 is configured to determine whether to respond to the paging message based on the paging reason in the paging message through the AS layer of the terminal device.

[0197] In an optional manner, the first communication card is in an inactive state, and the apparatus further includes:

[0198] The sending unit 704 is configured to send an RRC connection restoration request message to the first network through the AS layer of the terminal device. Wherein, if the AS layer determines not to respond to the paging message, the RRC connection restoration request message carries third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message.

[0199] In an optional manner, the first communication card is in an inactive state, and the apparatus further includes:

[0200] The sending unit 704 is configured to send an RRC connection restoration request message to the first network through the AS layer of the terminal device. Wherein, if the AS layer determines not to respond to the paging message, the first LCID of the CCCH corresponding to the RRC connection restoration request message is used to indicate that the terminal device does not respond to the paging message.

[0201] In an optional manner, the packet header corresponding to the RRC connection restoration request message in the MAC TB is the first packet header, and the LCID in the first packet header is the first LCID.

[0202] Those skilled in the art should understand that the relevant description of the above communication device in the embodiments of the present application can be understood with reference to the relevant description of the communication method in the embodiments of the present application.

[0203] Figure 8 is a schematic structural composition of the communication device provided in the embodiments of the present application Figure 2 , applied to the first base station, such as Figure 8 shown, the communication device includes:

[0204] A sending unit 801, configured to send a paging message to a terminal device, where the first base station is the base station corresponding to the first communication card in the terminal device, and the paging reason in the paging message is used for the terminal device to determine whether to respond to the paging message;

[0205] A receiving unit 802, configured to receive indication information sent by the terminal device, where the indication information is used to indicate that the terminal device does not respond to the paging message.

[0206] In an optional manner, the receiving unit 802 is configured to receive an RRC connection restoration request message sent by the terminal device, where the RRC connection restoration request message carries third indication information, and the third indication information is used to indicate that the terminal device does not respond to the paging message.

[0207] In an optional manner, the receiving unit 802 is configured to receive an RRC connection restoration request message sent by the terminal device, where the first LCID of the CCCH corresponding to the RRC connection restoration request message is used to indicate that the terminal device does not respond to the paging message.

[0208] In an optional manner, the RRC connection restoration request message is carried in a MAC TB, and the corresponding packet header is a first packet header, and the LCID in the first packet header is the first LCID.

[0209] In an optional manner, the sending unit 801 is further configured to send a context request message to a second base station, where the context request message carries fourth indication information, and the fourth indication information is used to indicate that the terminal device does not respond to the paging message and / or is used for the second base station to determine not to migrate the context of the terminal device;

[0210] The receiving unit 802 is further configured to receive a context request failure message sent by the second base station, where the context request failure message carries an RRC release message;

[0211] The sending unit 801 is further configured to send an RRC release message to the terminal device.

[0212] In an alternative manner, the fourth indication information is forwarded by the second base station to a core network control plane network element, and the fourth indication information is used for the core network control plane network element to notify a core network user plane network element to stop sending downlink data of the terminal device to the second base station and cache the downlink data.

[0213] In an alternative manner, the paging message is triggered by a second base station, and the paging cause in the paging message is notified by a core network control plane network element to the second base station.

[0214] In an alternative manner, the second base station is an anchor base station.

[0215] Those skilled in the art should understand that the relevant descriptions of the above communication device in the embodiments of the present application can be understood with reference to the relevant descriptions of the communication method in the embodiments of the present application.

[0216] Figure 9 is a schematic structural composition of a communication device provided by an embodiment of the present application Figure 3 , applied to a terminal device, such as Figure 9 shown, the communication device includes:

[0217] A receiving unit 901, configured to receive service data sent by a second network, where the second network is a network corresponding to a second communication card in the terminal device, and the terminal device further has a first communication card;

[0218] A determining unit 902, configured to determine an RRC connection cause of the first communication card;

[0219] A sending unit 903, configured to send an RRC connection establishment request message or an RRC connection restoration request message to a first network based on the RRC connection cause, where the first network is a network corresponding to the first communication card of the terminal device.

[0220] In an alternative manner, the sending unit 903 is further configured to send an RRC connection cause to an AS layer of the terminal device through an NAS layer of the terminal device; and send an RRC connection establishment request message or an RRC connection restoration request message to a first network based on the RRC connection cause through the AS layer of the terminal device.

[0221] In an alternative manner, the RRC connection cause is a calling signaling MO-signalling or a calling data MO-data.

[0222] In an alternative manner, the RRC connection cause is an emergency or a high-priority access highPriorityAccess.

[0223] In an alternative manner, the cause of the RRC connection is a mobile originated voice call (mo-VoiceCall), or a mobile originated video call (mo-VideoCall), or a mobile originated short message service (mo-SMS).

[0224] In an alternative manner, the cause of the RRC connection is mps-PriorityAccess or mcs-PriorityAccess.

[0225] In an alternative manner, the cause of the RRC connection is radio access network notification area update (rna-Update).

[0226] In an alternative manner, the sending unit 903 is further configured to send an RRC connection release request message to the second network.

[0227] Those skilled in the art should understand that the relevant descriptions of the above communication device in the embodiments of the present application can be understood with reference to the relevant descriptions of the communication method in the embodiments of the present application.

[0228] Figure 10 FIG. 16 is a schematic structural diagram of a communication device 1000 provided by an embodiment of the present application. The communication device may be a terminal device or a network device (such as a first base station). Figure 10 As shown in FIG. 16, the communication device 1000 includes a processor 1010. The processor 1010 may call and run a computer program from a memory to implement the method in the embodiments of the present application.

[0229] Optionally, as Figure 10 shown in FIG. 16, the communication device 1000 may further include a memory 1020. The processor 1010 may call and run a computer program from the memory 1020 to implement the method in the embodiments of the present application.

[0230] The memory 1020 may be a separate device independent of the processor 1010 or may be integrated in the processor 1010.

[0231] Optionally, as Figure 10 shown in FIG. 16, the communication device 1000 may further include a transceiver 1030. The processor 1010 may control the transceiver 1030 to communicate with other devices. Specifically, the processor 1010 may send information or data to other devices or receive information or data sent by other devices.

[0232] The transceiver 1030 may include a transmitter and a receiver. The transceiver 1030 may further include antennas, and the number of antennas may be one or more.

[0233] Optionally, the communication device 1000 may specifically be the network device of the embodiments of the present application, and the communication device 1000 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0234] Optionally, the communication device 1000 may specifically be the mobile terminal / terminal device of the embodiments of the present application, and the communication device 1000 may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0235] Figure 11 It is a schematic structural diagram of the chip of the embodiments of the present application. Figure 11 The chip 1100 shown includes a processor 1110. The processor 1110 may call and run a computer program from a memory to implement the methods in the embodiments of the present application.

[0236] Optionally, as Figure 11 shown, the chip 1100 may further include a memory 1120. Among them, the processor 1110 may call and run a computer program from the memory 1120 to implement the methods in the embodiments of the present application.

[0237] Among them, the memory 1120 may be a separate device independent of the processor 1110, or may be integrated in the processor 1110.

[0238] Optionally, the chip 1100 may further include an input interface 1130. Among them, the processor 1110 may control the input interface 1130 to communicate with other devices or chips. Specifically, it may obtain information or data sent by other devices or chips.

[0239] Optionally, the chip 1100 may further include an output interface 1140. Among them, the processor 1110 may control the output interface 1140 to communicate with other devices or chips. Specifically, it may output information or data to other devices or chips.

[0240] Optionally, the chip may be applied to the network device in the embodiments of the present application, and the chip may implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0241] Optionally, the chip may be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, details are not described herein again.

[0242] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0243] Figure 12 FIG. 1200 is a schematic block diagram of a communication system 1200 provided by an embodiment of the present application. As Figure 12 shown, the communication system 1200 includes a terminal device 1210 and a network device 1220.

[0244] Among them, the terminal device 1210 can be used to implement the corresponding functions realized by the terminal device in the above method, and the network device 1220 can be used to implement the corresponding functions realized by the network device in the above method. For the sake of brevity, details are not described herein again.

[0245] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method embodiments can be completed by the integrated logic circuit in the hardware of the processor or instructions in software form. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0246] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0247] It should be understood that the above-mentioned memory is by way of example but not limitation. For example, the memory in the embodiments of the present application can also be a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synch link dynamic random access memory (SLDRAM), and a direct rambus random access memory (Direct Rambus RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not be limited to these and any other suitable types of memory.

[0248] The embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

[0249] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0250] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0251] The embodiments of the present application further provide a computer program product including computer program instructions.

[0252] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0253] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0254] The embodiments of the present application further provide a computer program.

[0255] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on the computer, it enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0256] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, it enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0257] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or by a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. A professional technician can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0258] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0259] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0260] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0261] In addition, the functional units in each embodiment of this application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0262] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0263] As described above, the above are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A communication method, the method comprises: A terminal device receives a paging message sent by a first network and service data sent by a second network. The first network is a Long-Term Evolution (LTE) or New Radio (NR) network corresponding to a first communication card in the terminal device, and the second network is an NR network corresponding to a second communication card in the terminal device. The first communication card is in an idle state, and the second communication card is in a connected state; The terminal device determines whether to respond to the paging message based on the paging cause in the paging message, and indicates to the first network that the terminal device does not respond to the paging message when it is determined not to respond to the paging message; Wherein, the terminal device determines whether to respond to the paging message based on the paging cause in the paging message, including: The non-access NAS layer of the terminal device determines whether to respond to the paging message based on the paging cause in the paging message; The method further comprises: The access AS layer of the terminal device sends the paging cause in the paging message to the NAS layer of the terminal device; The NAS layer of the terminal device determines first information based on the paging cause and sends the first information to the AS layer of the terminal device; and When the access AS layer of the terminal device determines that access to the first network is allowed based on the access category in the first information, it initiates a Radio Resource Control (RRC) connection establishment process.

2. The method according to claim 1, wherein, The access category is access category 0.

3. The method according to claim 1 or 2, wherein, The first information further comprises at least one of the following: An RRC connection cause, and the RRC connection cause is called access mt-Access; A NAS message, and the NAS message is a service request message.

4. The method according to claim 3, wherein, The access AS layer of the terminal device initiates an RRC connection establishment process, including: The access AS layer of the terminal device sends an RRC connection establishment request message to the first network, and the RRC connection establishment request message carries the RRC connection cause.

5. The method according to claim 4, wherein, The method further comprises: The access AS layer of the terminal device receives an RRC connection establishment message sent by the first network and sends an RRC connection establishment completion message to the first network, and the RRC connection establishment completion message carries the NAS message.

6. A terminal device, the terminal device comprises: A receiving unit, configured to receive a paging message sent by a first network and service data sent by a second network. The first network is a Long-Term Evolution (LTE) or New Radio (NR) network corresponding to a first communication card in the terminal device, and the second network is an NR network corresponding to a second communication card in the terminal device. The first communication card is in an idle state, and the second communication card is in a connected state; A determining unit, configured to determine whether to respond to the paging message based on the paging cause in the paging message; An indication unit, configured to indicate to the first network that the terminal device does not respond to the paging message when it is determined that the terminal device does not respond to the paging message; Wherein, the determination unit is configured to determine whether to respond to the paging message based on the paging cause in the paging message through the non-access NAS layer of the terminal device; The terminal device further includes: A sending unit, configured to send the paging cause in the paging message to the NAS layer of the terminal device through the access AS layer of the terminal device; The determination unit is further configured to determine first information based on the paging cause through the NAS layer of the terminal device; The sending unit is further configured to send the first information to the AS layer of the terminal device through the NAS layer of the terminal device, and when it is determined through the AS layer of the terminal device that access to the first network is allowed based on the access category in the first information, initiate a radio resource control (RRC) connection establishment procedure.

7. The terminal device according to claim 6, Wherein, The access category is access category 0.

8. The terminal device according to claim 6 or 7, Wherein, The first information further includes at least one of the following: An RRC connection cause, and the RRC connection cause is called access (mt-Access); An NAS message, and the NAS message is a service request message.

9. The terminal device according to claim 8, Wherein, The sending unit is configured to send an RRC connection establishment request message to the first network through the AS layer of the terminal device, and the RRC connection establishment request message carries the RRC connection cause.

10. The terminal device according to claim 9, Wherein, The receiving unit is further configured to receive an RRC connection establishment message sent by the first network through the AS layer of the terminal device; The sending unit is further configured to send an RRC connection establishment completion message to the first network, and the RRC connection establishment completion message carries the NAS message.

11. A terminal device, including: A processor and a memory, where the memory is used to store a computer program, and the processor is configured to call and run the computer program stored in the memory, so that the terminal device performs the following operations: Receive a paging message sent by a first network and service data sent by a second network, where the first network is a Long-Term Evolution (LTE) or New Radio (NR) network corresponding to a first communication card in the terminal device, the second network is an NR network corresponding to a second communication card in the terminal device, the first communication card is in an idle state, and the second communication card is in a connected state; Determine whether to respond to the paging message based on the paging cause in the paging message, and indicate to the first network that the terminal device does not respond to the paging message when it is determined that the terminal device does not respond to the paging message; Wherein, the processor is further configured to call and run the computer program, so that the terminal device performs the following operations: The non-access NAS layer of the terminal device determines whether to respond to the paging message based on the paging cause in the paging message; The access AS layer of the terminal device sends the paging cause in the paging message to the NAS layer of the terminal device; The NAS layer of the terminal device determines first information based on the paging cause and sends the first information to the AS layer of the terminal device; and When the AS layer of the terminal device determines that access to the first network is allowed based on the access category in the first information, it initiates a radio resource control (RRC) connection establishment procedure.

12. The terminal device according to claim 11, wherein, The access category is access category accesscategory0.

13. The terminal device according to claim 11 or 12, wherein, The first information further includes at least one of the following: The RRC connection cause, and the RRC connection cause is called access mt-Access; The NAS message, and the NAS message is a service request message.

14. The terminal device according to claim 13, wherein, The processor is further configured to call and run the computer program, so that the AS layer of the terminal device sends an RRC connection establishment request message to the first network, and the RRC connection establishment request message carries the RRC connection cause.

15. The terminal device according to claim 14, wherein, The processor is further configured to call and run the computer program, so that the AS layer of the terminal device receives the RRC connection establishment message sent by the first network and sends an RRC connection establishment completion message to the first network, and the RRC connection establishment completion message carries the NAS message.

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