JPWO2020238018A5 - - Google Patents

Description

This application claims the priority of the PCT application entitled "Wireless communication method and device" filed with the Chinese Patent Office on May 24, 2019 with application number PCT/CN2019/088434, The contents are incorporated into this application by reference.
TECHNICAL FIELD This application relates to the field of communications, and more particularly to wireless communication methods and devices.

Conventionally, there are more and more terminal devices with dual card dual standby. However, the current terminal equipment does not support pure dual-path, i.e. the terminal equipment can transmit uplink and downlink data in two networks via two universal subscriber identity module (USIM) cards. No service can be provided, and the terminal can only perform service on one USIM card at a time.

A paging request sent from a network compatible with a USIM-2 card to a terminal device in which both a USIM-1 card and a USIM-2 card are installed, and the terminal device is executing data service with the USIM-1 card. , there is the question of whether it is necessary to switch to a USIM-2 card. Therefore, it is an urgent problem to solve whether the terminal device should switch to the USIM-2 card to execute the service or continue the current service with the USIM-1 card.

The present application provides wireless communication methods and devices that provide a way to determine whether a SIM card needs to be switched for a terminal device.

A first aspect is that a terminal device receives a first message including first information sent by a first network, and the terminal device follows the first information to the first network. determining whether to establish a connection with the wireless communication method.

A second aspect is that terminal equipment receives a first message sent by a first network, and said terminal equipment establishes a connection with said first network in response to said first message. or the terminal device determines whether to establish a connection with the first network according to the first message.

A third aspect provides a wireless communication method including: a first network transmitting a first message including first information to a terminal device; It is used to decide whether to establish a connection with one network.

A fourth aspect provides a wireless communication method including determining whether the terminal device needs to establish a connection with the first network according to a service to be transmitted by the first network.

A fifth aspect provides terminal equipment for performing the method in the first aspect, the second aspect or their respective implementations.

Specifically, the terminal equipment comprises functional modules for performing the method in the first aspect, the second aspect or their respective implementations.

A sixth aspect provides network equipment for performing the method of the third aspect, the fourth aspect, or their respective implementations.

Specifically, the network device comprises functional modules for performing the method in the third aspect, the fourth aspect or their respective implementations.

A seventh aspect provides a terminal device comprising a processor and a memory. The memory is used to store a computer program, and the processor calls up and runs the computer program stored in the memory to perform the method in the first aspect, the second aspect or each implementation thereof above. used for

An eighth aspect provides a network appliance comprising a processor and memory. The memory is used to store a computer program, and the processor calls up and runs the computer program stored in the memory to perform the method in the third aspect, the fourth aspect or their respective implementations. used to

A ninth aspect provides an apparatus for implementing the method in any one of the first to fourth aspects or each implementation thereof.

Specifically, the device calls up a computer program from the memory and runs it, and the method in any one of the first to fourth aspects or each implementation thereof is performed on the device to which the device is attached. It has a processor for executing.

A tenth aspect is a computer used for storing a computer program, the computer program causing the computer to perform the method in any one of the first to fourth aspects or each implementation thereof. Provide a readable storage medium.

An eleventh aspect provides a computer program product comprising computer program instructions, said computer program instructions causing a computer to perform a method in any one of the first to fourth aspects above, or each implementation thereof. do.

A twelfth aspect provides a computer program that, when run on a computer, causes a computer to execute the method in any one of the first to fourth aspects or each implementation thereof.

The technical solution according to the embodiments of the present application is that when the terminal device receives the first message sent by the first network, according to the service information in the first message or the instruction of the first network, the first decide whether to establish a connection with the network, and such a decision method can reduce the complexity of the terminal equipment.

1 is a schematic diagram of a wireless communication system used in embodiments of the present application; FIG. 1 is a schematic flow chart of a wireless communication method; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 4 is a schematic flowchart of another wireless communication method according to an embodiment of the present application; 1 is a schematic block diagram of a terminal device according to an embodiment of the present application; FIG. FIG. 4 is a schematic block diagram of another terminal device according to an embodiment of the present application; 1 is a schematic block diagram of a network device according to embodiments of the present application; FIG. FIG. 4 is a schematic block diagram of another network device according to embodiments of the present application; 1 is a schematic structural diagram of a communication device according to an embodiment of the present application; FIG. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present application; FIG. 1 is a schematic block diagram of a communication system according to an embodiment of the present application; FIG.

FIG. 1 is a schematic diagram of a system 100 according to an embodiment of the present application.

As shown in FIG. 1, a terminal device 110 is connected to a first network device 130 under a first communication system and a second network device 120 under a second communication system, e.g. The network equipment 130 is a network equipment under Long Term Evolution (LTE), and the second network equipment 120 is a network equipment under New Radio (NR).

Multiple cells may be included under the first network equipment 130 and the second network equipment 120 .

It should be understood that FIG. 1 is an example of a communication system according to embodiments of the present application, and embodiments of the present application are not limited to such as shown in FIG.

As an example, a communication system suitable for embodiments of the present application may include at least multiple network devices under the first communication system and/or multiple network devices under the second communication system.

For example, system 100 as shown in FIG. 1 may include one main network equipment under a first communication system and at least one auxiliary network equipment under a second communication system. At least one auxiliary network equipment is respectively connected to the one main network equipment to form a plurality of connections, each connected to terminal equipment 110 and providing services thereto. Specifically, the terminal device 110 can simultaneously establish connections via the main network device and the auxiliary network device.

Selectably, the connection established by the terminal equipment 110 and the main network equipment is the main connection, and the connection established by the terminal equipment 110 and the auxiliary network equipment is the auxiliary connection. The control signaling of the terminal equipment 110 can be transmitted by the main connection, the data of the terminal equipment 110 can be transmitted by the main connection and the auxiliary connection at the same time, or can be transmitted by the auxiliary connection only.

As another example, although the first communication system and the second communication system in the embodiments of the present application are different, there is no limitation on the specific types of the first communication system and the second communication system.

For example, the first communication system and the second communication system may be different communication systems, such as the Global System of Mobile communications (GSM) system, Code Division Multiple Access, Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA®) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system , LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), and the like.

The main network equipment and the auxiliary network equipment may be any access network equipment.

Optionally, in some embodiments, the access network equipment is a Base Transceiver Station in a Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA). BTS), a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, an evolution in a Long Term Evolution (LTE) system type base station (Evolutional Node B, eNB or eNodeB).

Optionally, the access network equipment is a Next Generation Radio Access Network (NG RAN), or a base station (gNB) in an NR system, or a Cloud Radio Access Network (CRAN). Alternatively, the access network equipment may be a relay station, an access point, an in-vehicle device, a wearable device, or a network device in a future evolved Public Land Mobile Network (PLMN). may

In the system 100 shown in FIG. 1, for example, the first network device 130 is the main network device and the second network device 120 is the auxiliary network device.

The first network equipment 130 may be an LTE network equipment and the second network equipment 120 may be an NR network equipment. Alternatively, the first network equipment 130 may be NR network equipment and the second network equipment 120 may be LTE network equipment. Alternatively, both the first network equipment 130 and the second network equipment 120 may be NR network equipment. Alternatively, the first network equipment 130 may be a GSM network equipment, CDMA network equipment, etc., and the second network equipment 120 may also be a GSM network equipment, CDMA network equipment, etc. FIG. Alternatively, the first network device 130 may be a macro base station (Macrocell) and the second network device 120 may be a micro base station (Microcell), a pico base station (Picocell) or a femto base station (Femtocell), or the like. may

Optionally, said terminal equipment 110 may be any terminal equipment, said terminal equipment 110 may be connected to Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), Digital connections via wire lines such as cable, direct cable connections, and/or other data connections/networks, and/or cellular networks such as DVB-H networks, digital television networks, satellite networks, AM-FM broadcast transmitters; A radio interface to a wireless local area network (WLAN) and/or a device installed to receive/transmit communication signals of other terminal equipment and/or the Internet of Things (IoT ) equipment, including but not limited to; Terminal equipment that is arranged to communicate over a wireless interface can be referred to as a "wireless communication terminal," a "wireless terminal," or a "mobile terminal." Examples of mobile terminals include satellite or cellular telephones, Personal Communications System (PCS) terminals that combine cellular radiotelephones with data processing, fax and data communication capabilities, radiotelephones, pagers, Internet/intranet access, web browsers, including, but not limited to, notebooks, calendars and/or Global Positioning System (GPS) receiver PDAs, and other electronic devices including conventional laptop and/or palmtop receivers or radiotelephone transceivers. Not limited. A terminal equipment may be an access terminal, User Equipment (UE), User Unit, User Station, Mobile Station, Mobile Station, Remote Station, Remote Terminal, Mobile Equipment, User Terminal, Terminal, Wireless Communication Equipment, User Agent or User Equipment. can point to The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld with wireless communication capabilities. It may be a device, a computing device or other processing device connected to a radio wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network or a terminal device in a future evolving PLMN, and so on.

It should be understood that the terms "system" and "network" are always used interchangeably herein.

Dual SIM card terminals are a future development trend, however, current terminals generally do not support pure dual-path capability, dual-path can be understood as double-transmit double-receive, i.e., two Send and receive data on one network at the same time. Therefore, a terminal device cannot perform uplink (UL) and downlink (UL) data services in two networks at the same time with two SIM cards.

Generally, most of the current terminal equipment only supports single uplink/downlink (Single UL/DL) or single uplink/dual downlink (Single UL/Dual DL), which means that the terminal equipment means that only one SIM card is running the service at a given time. Single UL/DL indicates that the terminal device only performs uplink and downlink services with one SIM card at a time, and Single UL/Dual DL indicates that the terminal device has two SIM cards at a time. services can be performed simultaneously, but only uplink services on one SIM card can be performed.

When a terminal device is installed with a SIM-1 card and a SIM-2 card at the same time, if the terminal device only supports Single UL/DL or Single UL/Dual DL, the following problems exist.

Case 1, if the terminal device only supports Single UL/DL, and the terminal device is in radio resource control (RRC) idle state or RRC disconnected state in both SIM-1 and SIM-2, There are situations where paging contention occurs.

Case 2, if the terminal device only supports Single UL/DL, and the terminal device is in RRC idle state or disconnected state with SIM-1, and in RRC connected state with SIM-2, priority on SIM-1 A lower priority service may interrupt a higher priority service on SIM-2, or the terminal may be unable to receive paging of services on SIM-1 in some event.

Case 3, if the terminal device only supports Single UL/Dual DL, and the terminal device is in RRC idle state or disconnected state with SIM-1 and in RRC connected state with SIM-2, the terminal device is in SIM- It will interrupt the service on SIM-2 to return paging (eg RRC connection establishment) on the 1 card.

For the above case, as shown in FIG. 2, two SIM cards, USIM-1 and USIM-2, are installed in the terminal equipment, the network corresponding to the USIM-1 card of the terminal equipment is Network 1, and the terminal Network 2 is the network corresponding to the USIM-2 card of the device. Network 1 includes an access network 1 (radio access network 1, RAN-1) and a core network 1 (core network 1, CN-1), and network 2 includes RAN-2 and CN-2.

At S<b>210 , the terminal device is connected to network 2 and disconnected from network 1 . The terminal equipment performs data services over USIM-2 in network 2 (RAN-2+CN-2).

At S220, CN-1 sends a paging request to RAN-1 to request the terminal equipment to establish a connection with the first network due to the trigger by the service in the first network.

At S230, RAN-1 sends a paging request to the terminal equipment after receiving the paging request sent by CN-1.

After receiving the paging request sent by RAN-1, the terminal equipment is in the process of whether to switch to USIM- 1 , for example, when the terminal equipment receives the paging request, it will switch to a service, such as a voice service, on the second network. If so, determine if the terminal device needs to switch to USIM-1. Therefore, the terminal equipment should either stop the service on network 2 and switch to U SIM-2, or ignore the paging of network 1 and keep the connection with network 2 to continue the current service. Whether to do so is an urgent issue to be resolved.

Embodiments of the present application provide a communication method and provide a scheme for determining whether to switch SIM cards in a terminal device that supports multiple SIM cards. As shown in FIG. 3, the method includes steps S310-S320.

At S310, the first network sends a first message to the terminal device, the first message includes first information, and the first message indicates that the terminal device establishes a connection with the first network. used to

At S320, the terminal device determines whether to establish a connection with the first network according to the first information.

The first network may refer to a first network equipment, the first network equipment may refer to a core network equipment, and the core network equipment may refer to the CN-1 described above. Alternatively, the first network equipment may refer to access network equipment, which may refer to RAN-1 as described above.

The terminal equipment and the first network are in a disconnected state, for example, the terminal equipment and the first network are in an RRC idle state, or the terminal equipment and the first network are in an RRC inactive state. It is in.

The terminal device may be a terminal device that supports multiple SIM cards, and if the SIM cards installed in the terminal device include USIM-1 and USIM-2, USIM-1 corresponds to the first network. USIM-2 corresponds to the second network, and the terminal device is currently connected to the second network and not connected to the first network.

When the terminal equipment is in a connection state with the second network, the terminal equipment can provide services in USIM-2. The terminal equipment being in a connected state with the second network includes the terminal equipment being in an RRC connected state and/or a connection management (CM) connected state with the second network.

The first message may be a paging message, and when the first network detects a service that needs to trigger paging, it can send a paging message to the terminal equipment, and the terminal equipment processes the service. make sure to For example, the first network may send a paging message to the terminal equipment upon detecting an application data packet or a request message triggered by a third party.

The first information may include service information so that the terminal device determines whether to switch to the first network according to the service information. When the terminal device determines that the service is relatively important or relatively urgent, for example, if the first information includes information such as earthquake and tsunami warnings, the terminal device switches to the first network to provide the service. If the terminal equipment determines that the service is not important or urgent, for example, if it is a spam message or advertisement, the terminal equipment can ignore the message and the current network can stay on.

The service information may include a service identifier, and the service identifier may indicate that the first network triggers the service of sending the first message.

The service identifier includes an application identity (ID), a service ID, an Internet Protocol (IP) address, a media access control (MAC) address, a virtual local area network (Virtual Local Area Network). It can be embodied by at least one of an Area Network (VLAN) ID, a data network name (DNN), and an access point name (APN).

The service identifier may also characterize different service types, such as emergency calls, voice services, short message services, IP Multimedia Subsystem (IMS) services, and the like.

In addition, the first information may further include a service identifier and a priority corresponding to the service identifier. The first information triggers the service and its corresponding priority of the first message, and the terminal device should establish a connection with the first network according to the priority of the service triggering the first message. can decide whether

Of course, multiple service identifiers and their corresponding priorities may be included in the first message, each service identifier has its corresponding priority, and different services may have the same or different priorities.

It can be understood that the first information is not limited to service information, but may also include other information, such as triggering events. The terminal device determines whether it needs to establish a connection with the first network according to the trigger event.

In an embodiment of the present application, the terminal equipment autonomously decides whether it needs to switch to the first network according to the content in the first information, e.g. service information, which means that the terminal supporting multiple SIM cards It can provide the equipment with a network switching strategy and reduce the complexity of the terminal equipment.

The terminal device determines whether to establish a connection with the first network according to the first information and at least one of the following information. The following information includes second information and services that the terminal device is running on the second network.

The second information can be understood as a ploy, the second information being the service priority, the service for which the terminal equipment needs to establish a connection with the first network, and the at least one of the services that does not require establishing a connection with any network.

The second information corresponds to different information at different times and/or different locations. For example, the second information may include service priorities at different times and/or different locations, and the same service may have different priorities at different times and/or different locations. Also, for example, at different times and/or different locations, the terminal equipment contained in the second information needs to establish a connection with the first network for different services.

Service priorities can include different services and their corresponding priorities . As shown in Table 1, Table 1 shows a scheme for indicating service priority.

Table 1 shows a total of four services and their corresponding priorities, with service-1 having a priority of 1, service-2 having a priority of 3, service-3 having a priority of 6, and service-4 having a priority. degree is 4. In Table 1, the smaller the number of priorities, the higher the degree of finiteness, ie service-1 has the highest priority, service-3 has the lowest priority, and service-2 has the lowest priority. is higher than the priority of service-4.

Service priority in an embodiment of the present application may include service priority at a particular time and/or service priority at a particular location, i.e., as shown in Tables 2 and 3, for the same service and have different priorities at different times and/or places.

Table 2 shows the situation of service priority at two different times for the same service. For service 1, the priority at time 1 is 1, but at time 2 it is 3; for service 2, the priority at time 1 is 4, but at time 2 has a priority of 2, for service 3 it has a priority of 6 at time 1 but at time 2 has a priority of 7, and for service 4 it has a priority at time 1 of 8, with a priority of 5 at time 2.

Referring to Table 2, at time 1, the priority of service 1 is higher than the priority of service 2, but at time 2, the priority of service 2 is higher than the priority of service 1. Therefore, when determining the priority of the service included in the first information, the terminal device can first determine the current time, and then set the priority corresponding to the time as the priority of the service. .

Hours 1 and 2 may represent day and night respectively, or hours 1 and 2 may represent weekdays and weekends respectively. Of course, embodiments of the present application can also divide more time points, such as working hours, non-work hours, meal times, bedtime, and the like.

Table 3 shows the priority situation at two different locations for the same service. For service 1, priority 4 at location 1 but priority 2 at location 2; for service 2, priority 1 at location 1 but at location 2 has a priority of 6, for service 3 it has a priority of 3 at location 1 but at location 2 has a priority of 5, and for service 4 it has a priority at location 1 of 7, but has a priority of 8 at location 2.

Referring to Table 3, at location 1, the priority of service 1 is lower than the priority of service 2, but at location 2, the priority of service 2 is lower than the priority of service 1. Therefore, when determining the priority of the service included in the first information, the terminal device first determines the current location of the terminal device, and then uses the priority corresponding to the location as the priority of the service. can decide.

Location 1 and Location 2 may represent home and work, respectively. Of course, embodiments of the present application can also divide more locations, eg, high-speed trains, airplanes, and the like.

Tables 1, 2, and 3 are only examples, and the priority is 1-9, but the embodiments of the present application are not limited to this, and the service priority can be further subdivided. For example, the service priority can be divided into a total of 20 levels from 1 to 20.

As can be appreciated, service priority can also include priority at a particular time and location, i.e. service priority is related to both time and place, and service priority is two-dimensional priority. is. In this case, the service priority is the common result of Tables 2 and 3, Table 2 can show service priority at a time and Table 3 can show service priority at a place . can.

The same service at the same time but in different locations and possibly with different priorities. When the terminal equipment determines the priority of the service included in the first information, it not only needs to determine the current time of the terminal equipment, but also needs to determine the current location of the terminal equipment. Prioritize services according to time and location information.

Embodiments of the present application do not specifically limit the granularity of service division. For example, the services are voice services based on IP Multimedia Subsystem (IMS) and non-IMS,
Short Message Service (SMS) and unstructured supplementary services data (USSD) based on IMS and non-IMS,
IMS services, excluding voice and SMS, and at least one of other data services not listed above, such as video.

For convenience of explanation, services that require the terminal equipment to establish connection with the first network are hereinafter referred to as the first service group, and services that do not require the terminal equipment to establish connection with the first network are hereinafter referred to as the first service group. Call it the second service group. The second information may include only the first service group, may include only the second service group, or may include the first service group and the second service group simultaneously. .

As an example, the terminal device determines whether to establish a connection with the first network according to the first information and the second information. When the second information includes service priority and the first information includes service information, the terminal device communicates with the first network according to the service and service priority included in the first information. It can decide whether to establish a connection. If the second information includes a first service group and the service included in the first information belongs to the first service group, the terminal equipment can establish a connection with the first network. If the second information includes the first service group and the service included in the first information does not belong to the first service group, the terminal device does not establish a connection with the first network. good. If the second information includes a second service group and if the service included in the first information belongs to the second service group, the terminal device does not need to establish a connection with the first network. good. If the second information includes the second service group, the terminal equipment can establish a connection with the first network.

The terminal device determines whether to establish a connection with the first network according to the service group to which the service contained in the first information belongs, and the terminal device transmits by the first network. When the first message is received, it is possible to directly determine whether a connection with the first network needs to be established simply by determining which service group the service contained in the first information belongs to. can decide.

There are various methods for the terminal device to decide whether to establish a connection with the first network according to the service and service priority included in the first information.

For example, the terminal equipment determines whether to establish a connection with the first network according to the order or class of services contained in the first information in service priority. If the order of the services contained in the first information in service priority is high, for example, high-middle, the terminal equipment can establish a connection with the first network, and the first information in service priority can be established. If the order of the services contained in the information is low, for example middle-low, the terminal device may not establish a connection with the first network.

Also for example, the terminal equipment can decide whether to establish a connection with the first network according to the services included in the first information and the services the terminal equipment is running on the second network. . After receiving the first message, the terminal equipment can determine which of the services in the first information and the services running on the second network are more important. If the service in the first information is more important, the terminal equipment can establish a connection with the first network, and if the service that the terminal equipment is running on the second network is more important, For example, if the second network is running a call service, but the service in the first information is advertising short messages, the terminal device may not establish a connection with the first network.

Further for example, the terminal equipment further determines whether to establish a connection with the first network according to the services included in the first information, the services the terminal equipment is running on the second network, and the service priority. can decide. Specifically, whether the terminal device establishes a connection with the first network according to the priority of the service included in the first information and the priority of the service the terminal device is running on the second network. decide what to do. If the priority of the service contained in the first information is higher than the priority of the service running on the second network, the terminal equipment can establish a connection with the first network, If the priority of the service contained in the information is lower than the priority of the service running on the second network, the terminal device may not establish a connection with the first network, and the first information includes: If the priority of the included service is similar to the priority of the service running on the second network, the terminal equipment will not be able to establish a connection with the first network even if it establishes a connection with the first network. need not be established.

By comparing the priority of services in the two SIM cards, the terminal device has a relatively flexible method of deciding whether to switch SIM cards, and the service running in USIM-2 and the request in USIM-1 are relatively flexible. By comparing the provided services, the more important or more urgent services can be selected for processing, and the data processing strategy can be flexibly adjusted to the terminal equipment.

In an embodiment of the present application, the second information may have been sent to the terminal device over the first network , or may have been preconfigured in the terminal device, e.g. It may be preconfigured.

The second information was sent by the network device to the terminal device, and the network device sends the second information to the terminal device during a registration process, a session establishment process and/or a UE Configuration Update (UCU) process. can be sent to the device. For example, the second information is carried in at least one of a Registration Accept message, a Protocol Data Unit (PDU) session establishment accept message, a PDU session modification accept message, and a message in the UCU process. .

The UCU process may be a UCU process triggered by an access and mobility management function (AMF) or a UCU process triggered by a policy control function (PCF) network element. may

The second information may be sent to the terminal equipment by a session management function (SMF) network element or may be sent to the terminal equipment by a PCF network element. The PCF network element transmits the second information to the terminal equipment, and can refer to the PCF network element using a Container to transparently transmit the second information to the terminal equipment by the AMF network element. .

The first network may send second information to the terminal equipment in the first message, for example, when the first network sends a paging message to the terminal equipment, the second information is sent to the paging message. It can be carried and transmitted to the terminal device.

The terminal equipment can decide whether it needs to establish a connection with the first network by any one of the methods described above. When the terminal device determines that it needs to establish a connection with the first network, it can release the connection with the second network or disconnect with the second network. The terminal equipment can release the RRC connection and/or CM connection with the second network.

If the terminal equipment is currently in an RRC connection state with the second network, the RRC connection with the second network can be released if the terminal equipment decides to establish a connection with the first network. If the terminal equipment is currently in a CM connection state with the second network, the CM connection with the second network can be released if the terminal equipment decides to establish a connection with the first network.

When the terminal equipment decides that it needs to establish a connection with the first network, it can send a first request message to the first network, the first request message communicating with the first network. is used to request to establish an RRC connection for Specifically, the terminal equipment can send a first request message to the first network by SIM-1.

Of course, if the terminal device supports the ability to run data services on two SIM cards simultaneously, the terminal device will not release the connection with the second network and will continue to maintain the connection with the second network. can.

The terminal equipment establishing a connection with the first network means the terminal equipment establishing a connection with the first core network and/or the terminal equipment establishing a connection with the first access network. may include

The first request message may include an RRC connection establishment request message and/or an RRC connection recovery request message. When the terminal equipment and the first network are in RRC idle state, the terminal equipment can send an RRC connection establishment request message to the first network, and when the terminal equipment and the first network are in RRC disconnected state , the terminal equipment may send an RRC connection restoration request message to the first network.

When the terminal equipment sends a first request message to the first network, the first request message may carry a cause value, the cause value requesting the terminal equipment to establish or restore an RRC connection. used to indicate the reason for

The cause values may include, for example, SIM card switching and/or specific service identifiers. SIM card switching indicates that the terminal equipment uses the current SIM card to initiate an RRC connection and may disconnect the network corresponding to the previous SIM card, and the specific service identifier is the first The identifier of the service included in the information of 1 can be included, and the RRC connection performed by the terminal device can be indicated by the arrival of the specific service.

The terminal equipment may also send a non-access stratum (NAS) message to the first network so as to establish a NAS connection with the first network, whereby the terminal equipment establishes a CM connection put into a state.

After the terminal equipment enters the CM connected state, normal data service can be performed, ie the terminal equipment can process data service on SIM-1.

Hereinafter, the wireless communication method according to the embodiment of the present application will be described in detail in combination with FIG. As shown in FIG. 4, the method includes steps S410-480. For the corresponding technical features in FIG. 4, reference can be made to the above description.

At S410, terminal SIM-1 completes registration or attachment with the first network and terminal SIM-2 completes registration or attachment with the second network. The terminal device is currently in a CM connection state with the second network and in a non-connection state with the first network.

The first network can include RAN-1 and CN-1, and the second network can include RAN-2 and CN-2.

At S420, CN-1 may send a paging message to RAN-1 when CN-1 detects a service that needs to trigger a paging message. There are two methods of triggering paging messages: 1. application data packets; 2. request messages triggered by third-party servers.

Service information can be carried in the paging message, and the terminal device determines whether to establish a connection with the first network according to the service information. Service information may include service type and/or service identifier.

At S430, RAN-1 may send a paging message to the terminal equipment after receiving the paging message sent by CN-1.

At S440, after receiving the paging message, the terminal device may decide whether to establish a connection with the first network according to the service information contained in the paging message and the second information.

The second information is at least one of a service priority, a service that requires the terminal to establish a connection with the first network, and a service that does not require the terminal to establish a connection with the first network. It can contain one.

When the terminal device determines that it needs to establish a connection with the first network, it can disconnect from the second network and connect to the first network using USIM-1. .

At S450, the terminal equipment sends a first request message to RAN-1, the first request message may be an RRC connection establishment request message, or the first message may be an RRC recovery request message. There may be.

When the terminal equipment and RAN-1 are in RRC idle state, the terminal equipment can send an RRC connection establishment request message to RAN-1, and when the terminal equipment and RAN-1 are in RRC inactive state. , the terminal can send an RRC recovery request message to RAN-1.

When the terminal equipment sends the first request message, the first request message may carry a cause value to indicate the cause for the terminal equipment to send the first request message. The cause value may include a SIM card switch and/or an identifier for a particular service.

At S460, after receiving the RRC connection establishment request message sent by the terminal equipment, RAN-1 can send an RRC setup message to the terminal equipment, and RAN-1 receives the RRC setup message sent by the terminal equipment. After receiving the recovery request message, an RRC resume message can be sent to the terminal equipment.

In S470, after the terminal equipment receives the RRC setup message, it can send an RRC establishment complete message to RAN-1, and after the terminal equipment receives the RRC Resume message sent by RAN-1, RAN-1 can send an RRC recovery complete message to

At S480, the terminal initiates a NAS message to CN-1, eg, the terminal can send a service request message or a registration request message to CN-1, causing it to enter the CM connected state.

Embodiments of the present application further provide another wireless communication method, and provide a method for determining whether to switch SIM cards in a terminal device that supports multiple SIM cards. As shown in FIG. 5, the method includes steps S510-S530.

The difference from the method as shown in FIG. 3 is that the method as shown in FIG. It is possible to establish or not establish a connection with one network and to reduce the complexity of the terminal equipment as much as possible. For the corresponding technical features in the method as shown in FIG. 5, reference can be made to the description of FIG. 3, which will not be repeated here for the sake of brevity.

At S510, the first network sends a first message to the terminal equipment.

The first network may refer to first network equipment, which may refer to core network equipment or access network equipment.

The terminal device may be a terminal device that supports multiple SIM cards, the terminal device is currently disconnected from the first network, and the first network is one SIM card of the plurality of SIM cards. It may be a network corresponding to

For example, a terminal device may support USIM-1 and USIM-2, USIM-1 corresponding to the first network and USIM-2 corresponding to the second network. The terminal equipment is currently disconnected from the first network but connected to the second network, i.e. the terminal equipment performs USIM-2 related data services on the second network, but Data services related to USIM-1 cannot be performed on the first network.

After receiving the first message, the terminal device can perform step S520 or step S530. Which step the terminal device specifically executes depends on the switching strategy of the network side.

The first message may be, for example, a paging message, but embodiments of the present application are not limited to this, and when there is a triggered service, the first network sends another message to the terminal equipment. good too.

If there is a triggered service, the first network can send a paging message to the terminal equipment, causing the terminal equipment to request to establish a connection with the first network. The first network sending a paging message to the terminal equipment sends a paging message to the terminal equipment when the first network determines that the terminal equipment needs to establish a connection with the first network. or that the first network sends a paging message to the terminal equipment regardless of whether the terminal equipment needs to establish a connection with the first network.

The first network can determine whether the terminal device needs to establish a connection with the first network according to a first strategy, the first strategy includes the service priority, the paging message, the first At least one of a service that requires adding one indication and a service that does not require adding said first indication to the paging message.

In one implementation, the first network can determine whether the terminal equipment needs to establish a connection with the first network according to the first strategy and the service to be transmitted, and the service to be transmitted is It can be understood as a service that triggers the first network device to send a paging message.

The first network can decide whether the terminal equipment needs to establish a connection with the first network according to the priority of the service to be transmitted. Alternatively, the first network determines whether the terminal equipment needs to establish a connection with the first network according to whether the service to be transmitted belongs to the service adding the first indication to the paging message. can do.

Optionally, the service priority in embodiments of the present application identifies services that require the terminal equipment to be connected to the first network and/or services that do not require the terminal equipment to be connected to the first network. can be used for

For example, the service priority can be used to indicate a first service group , which is the service for which the terminal equipment needs to be connected to the first network (e.g. terminal idle or RRC - need to recover from the inactive state to the connected state), and the service to be transmitted belongs to the first service group , the first network requires the terminal equipment to establish a connection with the first network. If the service to be transmitted does not belong to the first service group, the first network may decide that the terminal does not need to establish a connection with the first network. Also for example, said service priority can be used to indicate a second service group, said second service group being services for which the terminal equipment does not need to be connected to the first network, and services to be transmitted. belongs to the second service group, the first network determines that the terminal equipment does not need to establish a connection with the first network, and the service to be transmitted belongs to the first service group, The first network may determine that the terminal equipment needs to establish a connection with the first network. Further for example, the service priority can be used to indicate a first service group and a second service group, the first service group being a service for which the terminal equipment needs to be connected to the first network. the second service group is a service that does not require the terminal equipment to be connected to the first network, and the service to be transmitted belongs to the first service group, the first network determines that the terminal equipment If it can be determined that it is necessary to establish a connection with one network and the service to be transmitted belongs to a second service group, the first network prompts the terminal equipment to establish a connection with the first network. Decide that you don't need to.

The first strategy accommodates different information at different times and/or different places. For example, a first strategy may include priority of service at different times and/or different locations, where the same service may have different priorities at different times and/or different locations. Also, for example, at different times and/or different locations, the terminal equipment contained in the second information needs to establish a connection with the first network for different services.

Service priority can include service priority at a particular location and/or service priority at a particular time, and can specifically refer to the above description.

A service in embodiments of the present application may be indicated by a service identifier.

In an embodiment of the present application, the first network can determine the service to be transmitted according to the service identifier in the user plane data packet.

The service identifier can be added to the differentiated services code point (DSCP) field of the header of the IPv4/IPv6 user plane data packet.

If the service identifier in the user plane data packet matches the service identifier of the first strategy, the first network uses the strategy corresponding to the service identifier for the terminal equipment to establish a connection with the first network. You can decide if you need it. For example, if the first strategy includes a plurality of service identifiers and their corresponding priorities, the first network determines whether the terminal equipment is first according to the corresponding priority in the first strategy of the service identifiers in the user plane data packet. It can decide whether it needs to establish a connection with one network.

Embodiments of the present application do not specifically limit the manner in which the first network acquires the first strategy, and all or part of the information of the first strategy may include terminal equipment, signature information and strategies, charging control obtained from at least one of the (policy charging control, PCC) strategies.

As an example, the terminal equipment can send some or all of the information in the first strategy to the network equipment. The terminal equipment may send some or all of the information in the first strategy to the first network via the NAS message, e.g. Some or all of the information in the first strategy may be sent or updated to the first network during the process.

As another example, a unified data management (UDM) network element can send signed information to a first network, where the signed information includes some or all of the information in the first strategy. can be carried. The UDM network element may send or update some or all information in the first strategy to the first network during the terminal equipment registration process and/or the PDU session establishment process and/or the PDU session modification process. can.

As a further example, a policy control function (PCF) network element can send a PCC strategy to a first network, the PCC strategy carrying some or all of the information in the first strategy. can the PCF network element sending or updating part or all of the information in the first strategy to the first network during the terminal equipment registration process and/or the PDU session establishment process and/or the PDU session modification process; can be done.

At S520, the terminal establishes a connection with the first network in response to the first message.

In this case, the first network only sends the first message to the terminal equipment if it determines that the terminal equipment needs to establish a connection with the first network; The network does not send the first message to the terminal equipment.

At S530, the terminal device determines whether to establish a connection with the first network according to the first message.

Instruction information may be included in the first message, the indication information is used to indicate whether the terminal equipment should establish a connection with the first network, and the terminal equipment may A connection with the first network may or may not be established according to the information.

For example, if the instruction information indicates that the terminal equipment needs to establish a connection with the first network, the terminal equipment establishes the connection with the first network after receiving the instruction information, and if the instruction information indicates that the terminal equipment does not need to establish a connection with the first network, the terminal equipment does not establish a connection with the first network after receiving the instruction information, and the terminal equipment You can continue to stay connected to the network you are currently connected to.

The indication information can be indicated by bits, for example, one bit can indicate the indication information. If the bit takes a value of 0, it indicates that the terminal device does not need to establish a connection with the first network, and if the bit takes a value of 1, the terminal device does not connect to the first network. connection should be established.

Also for example, the terminal equipment can decide whether to establish a connection with the first network according to whether the first indication is carried in the first message. Carrying the first indication in the first message indicates that the terminal equipment needs to establish a connection with the first network, and not carrying the first indication in the first message, It indicates that the terminal equipment does not need to establish a connection with the first network. The first indication is sent when the first network determines that the terminal equipment needs to establish a connection with the first network.

If the first network has a service that triggers the terminal equipment to send a first message, the first network determines whether the terminal equipment needs to establish a connection with the first network. be able to. When the terminal equipment needs to establish a connection with the first network, the first network carries a first indication in the first message and the terminal equipment establishes the connection with the first network. If not necessary, the first network does not carry the first indication in the first message. After receiving the first message sent by the first network, the terminal equipment first determines whether the first message carries the first indication, and adds the first indication to the first message. Carrying the indication causes the terminal equipment to establish a connection with the first network, and without carrying the first indication in the first message, the terminal equipment does not establish a connection with the first network.

Optionally, as shown in FIG. 8, the terminal equipment can send a second indication to the network equipment, the second indication indicating that the first network has selected the first strategy and/or It is used to instruct the terminal equipment to determine whether it needs to establish a connection with the first network according to the service. After the first network receives the second indication sent by the terminal equipment, it determines whether the terminal equipment needs to establish a connection with the first network according to the method described above. For example, when the terminal is in CM-IDLE state or RRC-Inactive state, the first network will detect a data packet sent to the terminal equipment and a downlink specific service data packet triggering paging. (for example, determined according to the service priority), the first network determines to send the paging message to the terminal equipment according to the specific service (shown in S603-1 of FIG. 6), or the paging message includes the first (shown in S603-2 of FIG. 6) or carry service information in the paging message (shown in S420 of FIG. 4), and the UE is in RRC-Inactive state, as shown in FIG. A combination of methods will be implemented.

If the first network does not receive the second indication sent by the terminal equipment, the first network does not detect the data packet sent to the terminal equipment, and as long as there is a service that triggers the paging, the first network will perform the paging. Send a message to a terminal device.

The second indication was sent to the first network, for example when the terminal decided to leave the first network or to disconnect from the first network. may

As an example, a terminal device first connects to a first network, then switches to a second network, and then switches from the second network to the first network. 1 to connect to the first network and USIM-2 to connect to the second network to perform service-1 (eg voice service), terminal capabilities are limited (transmitting and receiving data with only one network), it is necessary for the terminal equipment to disconnect from the first network. In this case, the terminal equipment can send the second indication to the first network. In this case, the first network determines according to the second instructions using the method described above, and if there is a service that needs to be transmitted over the first network, the first network determined by the method described above, it can be determined whether the terminal equipment needs to establish a connection with the first network. If the first network does not receive the second indication sent by the terminal equipment, the first network may not perform the above-described method, and without judging, send the paging message to the terminal equipment. can be sent directly.

After the terminal device completes the service-1, the USIM-2 is switched back to the USIM-1, that is, the connection between the USIM-2 and the second network is cut off, and the USIM-1 connects to the first network. After establishing a connection (eg, an RRC connection), the terminal may send a third indication (as shown in FIG. 9) to the first network, the third indication indicating that the first network It can be used to instruct the terminal equipment to stop determining whether it needs to establish a connection with the first network according to the strategy and/or the service to be transmitted. If the first network receives the third indication, it may stop the method described above according to the third indication.

Optionally, the second indication or the third indication in embodiments of the present application may be sent by the terminal equipment to the first network via NAS message or RRC message. An RRC message transmission can be sent to a core network node (eg, AMF, SMF) after the RAN node receives the 'second indication' or 'third indication'.

Hereinafter, in combination with FIG. 6, the wireless communication method according to the embodiment of the present application will be described in detail, taking the case where the first message is a paging message as an example. The method as shown in FIG. 6 includes steps S601-S610.

At S601, the USIM-1 of the terminal device completes registration or attachment with the first network, and the USIM-2 of the terminal device completes registration or attachment with the second network. The terminal device is currently in a CM connection state with the second network and in a non-connection state with the first network.

The first network may include RAN-1 and CN-1, and the second network includes RAN-2 and CN-2.

At S602, CN-1 detects a service that needs to trigger a paging message. There are two methods of triggering paging messages: 1. application data packets; 2. request messages triggered by third-party servers.

CN-1 can determine which service the service triggering the paging message belongs to, for example, CN-1 determines that the service triggering the paging message is Service-1.

If it is a paging message triggered by an application data packet, CN-1 performs a flow detection function and determines that it is service-1 that corresponds to the data packet. The process can be performed by a user plane network element in CN-1.

If the paging message is triggered by a third-party server, the process may be that the third-party server sends a request message to the control plane network element via the control plane, and CN-1 sends the paging message to the terminal equipment. The control plane network element may for example be a PCF network element.

CN-1 can determine whether the terminal equipment needs to establish a connection with the first network according to the service information.

With reference to the above description, CN-1 can determine whether the terminal equipment needs to establish a connection with the first network according to the service information and the second information.

The second information can be understood as a ploy, the second information being the service priority, the service for which the terminal equipment needs to establish a connection with the first network, and the at least one of the services that does not require establishing a connection with any network.

CN-1 determines whether the terminal device needs to establish connection with the first network according to the service information and the second information. It is similar to the method of determining whether it is necessary to establish a connection with the first network according to the second information and will not be repeated here.

In an embodiment of the present application, the manner in which CN-1 indicates to the terminal equipment whether it needs to establish a connection with the first network is the manner described in steps S603-1 and S603-2 respectively. be.

At S603-1, CN-1 determines whether to send a paging message to the terminal according to the determination result. When CN-1 determines that the terminal equipment needs to establish a connection with the first network, CN-1 can send a paging message to the terminal equipment, and CN-1 If CN-1 decides that it does not need to establish a connection with the network, it may not send paging messages to the terminal equipment.

Similarly, if CN-1 uses a paging message to directly indicate whether the terminal equipment should establish a connection with the first network, as long as the terminal equipment receives the paging message, the first network and the terminal equipment does not establish a connection with the first network unless the terminal equipment receives the paging message.

At S603-2, CN-1 determines whether it needs to add the first indication to the paging message according to the determination result. In this case, regardless of whether the terminal equipment needs to establish a connection with the first network, CN-1 sends a paging message to the terminal equipment, but the judgment result is direct to.

When CN-1 determines that the terminal equipment needs to establish a connection with the first network, CN-1 can add a first indication to the paging message, and CN-1 determines that the terminal equipment CN-1 may not add the first indication to the paging message if it decides that it does not need to establish a connection with network 1.

Similarly, when CN-1 indicates whether the terminal equipment needs to establish a connection with the first network according to the first indication method, after the terminal equipment receives the paging message, the paging message It can decide whether to establish a connection with the first network according to whether it carries an indication of 1. The terminal establishes a connection with the first network if the paging message includes the first indication, and the terminal establishes a connection with the first network if the paging message does not carry the first indication. do not do.

In an embodiment of the present application, CN-1 sending a paging message to the terminal equipment may refer to CN-1 sending a paging message to the terminal equipment via RAN-1. That is, CN-1 can send a paging message to RAN-1, and RAN-1 will send the paging message to the terminal according to the paging message sent by CN-1.

At S604, CN-1 sends a paging message to RAN-1 or carries the first indication in the paging message according to the determination result of S603-1 or S603-1.

At S605, RAN-1 sends a paging message to the terminal equipment after receiving the paging message sent by CN-1.

RAN-1 can transparently transmit the paging message sent by CN-1 to the terminal equipment.

At S606, after the terminal equipment receives the paging message sent by RAN-1, it establishes or does not establish a connection with the first network according to the instructions of the paging message.

When the terminal equipment is connected to the second network, it still monitors the paging request message of SIM-1 at the specified time point, ie monitoring whether RAN-1 has sent the paging message to the terminal equipment.

After the paging message is sent according to the strategy of step S603-1, the terminal equipment can establish a connection with the first network after receiving the paging message.

If the paging message is sent according to the strategy of step S603-2, after the terminal receives the paging message, it can first determine whether the paging message carries the first indication. If the paging message carries a first indication, the terminal establishes a connection with the first network; if the paging message does not carry the first indication, the terminal establishes a connection with the first network. Do not establish connection.

When the terminal equipment determines that it needs to establish a connection with the first network, the terminal equipment can perform step S670.

At S607, the terminal equipment sends a first request message to RAN-1, the first request message may be an RRC connection establishment request message, or the first message may be an RRC recovery request message. may

When the terminal equipment and RAN-1 are in RRC idle state, the terminal equipment can send an RRC connection establishment request message to RAN-1, and when the terminal equipment and RAN-1 are in RRC inactive state, the terminal equipment can An RRC recovery request message may be sent to RAN-1.

When the terminal equipment sends the first request message, the first request message may carry a cause value to indicate the cause for the terminal equipment to send the first request message. The cause value may include a SIM card switch and/or an identifier for a particular service.

In S608, after receiving the RRC connection establishment request message sent by the terminal equipment, RAN-1 can send an RRC setup message to the terminal equipment, and RAN-1 receives the RRC setup message sent by the terminal equipment. After receiving the recovery request message, an RRC resume message can be sent to the terminal equipment.

In S609, after the terminal equipment receives the RRC setup message, it may send an RRC establishment complete message to RAN-1, and after the terminal equipment receives the RRC Resume message sent by RAN-1, RAN-1 can send an RRC recovery complete message to

At S610, the terminal initiates a NAS message to CN-1, eg, the terminal sends a service request message or a registration request message to CN-1 to enter CM connected state.

The manner in which the first network determines whether the terminal equipment needs to establish a connection with the first network is based on the above-described method for the terminal equipment to establish a connection with the first network. is similar to the method for determining whether there is a

The first network can determine whether the terminal equipment needs to establish a connection with the first network according to the service information. The first network equipment can decide whether the terminal equipment needs to establish a connection with the first network according to the importance of the service information.

For example, the first network can decide according to the service information and the second information whether the terminal equipment needs to establish a connection with the first network. The second information is selected from service priority, services for which the terminal equipment needs to establish a connection with the first network, and services for which the terminal equipment does not need to establish a connection with the first network. At least one type can be included.

For the sake of brevity, they are not repeated here.

As described above, when the first network receives an application data packet or a request message triggered by a third party server, the first network can send a paging message to the terminal equipment.

The paging message may have been sent by the access network equipment to the terminal equipment, eg the access network equipment may send the paging message to the terminal equipment over the air interface.

The access network equipment may send a paging message to the terminal equipment according to the third message, which may be obtained from the core network control plane equipment or the user plane equipment, i.e. the core The network equipment may send the third message to the access network equipment via user plane equipment or control plane equipment.

The third message may include the first indication and/or service identifier.

As an example, if the determination is performed by the terminal equipment, the core network equipment may directly send the third message to the access network equipment if there is a service that triggers the core network equipment to send the third message. , the service identifier can be added to the third message.

As another example, if the decision is made by the network equipment, if there is a service that triggers the core network equipment to send a third message, the core network equipment follows the service and the first strategy to the terminal equipment: can determine whether it needs to establish a connection with the first network, and the terminal equipment needs to establish a connection with the first network, the core network equipment sends a third message to A first indication may be added, and a third message with the first indication added is sent to the access network equipment.

As shown in FIG. 7, network equipment supporting SIM-1 includes RAN-1 and CN-1, and network equipment supporting SIM-2 includes RAN-2 and CN-2. Terminal equipment can communicate with RAN-1 and/or CN-1 via SIM-1, and terminal equipment can communicate with RAN-2 and/or CN-2 via SIM-2.

The method as shown in FIG. 7 includes steps S710 and S720.

At S710, CN-1 sends a third message to the access network equipment. When there is service arriving on the first network, CN-1 can send a third message to the access network equipment.

At S720, after RAN-1 receives the third message sent by CN-1, it may send a paging message to the terminal equipment. The paging message can refer to the first message described above.

The third message may be a paging message or a GPRS tunneling protocol (GTP-U) message. For example, the third message sent from the core network control plane equipment to the access network equipment may be a paging message. Also for example, the third message sent from the user plane equipment to the access network equipment may be a GTP-U message.

When the terminal equipment and the first network are in CM-idle state, in this case both the air interface between the terminal equipment and the access network equipment and the N2 interface between the access network equipment and the core network equipment are In the released state, the third message sent from the core network to the access network is a paging message and the first message sent from the access network equipment to the terminal equipment is a paging message. When sending a paging message from the core network equipment to the access network equipment, it can be sent via the control plane equipment.

When the terminal equipment and the first network are in RRC-inactive state, in this case the air interface between the terminal equipment and the access network equipment is released, but the N2 between the access network equipment and the core network equipment. If the interface is not released, it will not trigger the core network equipment to send paging messages to the access network equipment. When there is an arriving service, the core network equipment can send a GTP-U message to the access network equipment via the user plane equipment, and after the access network equipment receives the user plane data, it will send a paging message to the terminal equipment. do.

Whether the third message sent from the core network equipment to the access network equipment is a paging message or a GTP-U message, both the paging message or the GTP-U message including the first information. and the terminal device determines whether to establish a connection with the first network according to the first information.

The first information and/or the first indication included in the paging message is sent with UE ID granularity.

One UE ID can correspond to one USIM, for example one UE ID can correspond to one Subscription Permanent Identifier (SUPI) or Globally Unique Temporary UE Identity (GUTI). .

Take the case where the first message contains a paging message as an example, each paging message has a piece of corresponding service information, and the terminal equipment can find the service information corresponding to its UE ID after receiving the paging message. and then determine whether to establish a connection with the first network according to the service information.

Also for example
The additional positions of the first information and the first instruction will be described for the two-step paging message as shown in FIG. Reference can be made to the above description for the meaning of the first information and the first indication. The first information and the first indication may be indicated by reusing the fields in the conventional paging message, or may be indicated by re-adding one field to the conventional paging message.

Table 4 shows the format of the paging message sent from CN-1 to RAN-1 for the paging message in S710.

TAI stands for UE tracking area identity (TAI) and IE stands for information element (IE).

The first information can be added to a field of Assistance Data for Paging, e.g. selection 1 as shown in Table 4, the first information is one new parameter, shown in Table 4 It can also be added to Choice 2 as shown in Table 4 and is used to indicate the first information by adding one new field in the paging message as shown in Table 4.

A first indication can be added to the Paging Priority field, e.g. selection 1 as shown in Table 4, and the first indication can be added to one new parameter, e.g. 2 and is used to indicate the first information by adding one new field in the paging message as shown in Table 4.

The paging message sent from CN-1 to RAN-1 may be UE ID granular, and one paging message can be used to page multiple terminals simultaneously. If CN-1 carries the first information and/or the first instructions in the paging message, it can identify the first information and/or the first instructions sent to different terminal equipments by the UE ID. .

The format of the paging message sent from RAN-1 to the terminal equipment for the paging message in S720 is shown below.
Paging ::= SEQUENCE {
pagingRecordList PagingRecordList OPTIONAL, --Need N
late NonCritical Extension OCTET STRING OPTIONAL,
nonCriticalExtension SEQUENCE { } OPTIONAL
}

PagingRecordList::= SEQUENCE(SIZE(1..maxNrofPageRec)) OF PagingRecord

PagingRecord ::= SEQUENCE {
UE-Identity Paging UE-Identity,
accessType ENUMERATED {non3GPP} OPTIONAL, -- Need N
"Service Information" or "First Instruction"
. . .
}

PagingUE-Identity ::= CHOICE {
ng-5G-S-TMSI NG-5G-S-TMSI,
full I-RNTI I-RNTI-Value,
. . .
}
-- TAG-PAGING-STOP
-- ASN1 STOP

The first information can be added to a paging record field, the paging record includes the first information of a plurality of terminal devices, and the first information of different terminal devices depending on the UE-ID and each UE-ID has one corresponding first information.

The first indication can be added to the field of the "Paging Record", where the Paging Record is implemented by one new value, or the first indication is indicated by re-adding one parameter to the paging message. can be

Paging messages sent from RAN-1 to terminal equipment can be used to page multiple terminal equipment simultaneously with one paging message. For this reason, the first information and the first indication are transmitted with UE-ID as the granularity, and in this way, after the terminal receives the paging message, the service identifier corresponding to its UE-ID and/or the first indication is sent. 1 to determine whether to establish a connection with the first network.

Embodiments of the present application reuse conventional processes to transmit second information to terminal equipment, and reuse fields in conventional paging messages to transmit first information and/or first instructions. By doing so, further complexity of the overall system can be reduced.

A terminal device supporting multiple SIM cards in an embodiment of the present application may refer to a terminal device supporting two or more SIM cards. The SIM card may refer to a normal SIM card or a USIM card.

The wireless communication method according to the embodiments of the present application has been described in detail above, and the apparatus according to the embodiments of the present application will be described in combination with FIGS. 10 to 16 below. It can be applied to the following device embodiments.

FIG. 10 is a schematic block diagram of a terminal device according to an embodiment of the present application, which may be any one of the terminal devices described above. The terminal device 800 of FIG. 10 comprises a communication unit 810 and a processing unit 820,
Communication unit 810 is used to receive a first message containing first information sent by a first network.

The processing unit 820 determines whether to establish a connection with the first network according to the first information.

Selectably, said terminal equipment is a terminal equipment supporting a plurality of Universal Subscriber Identity Module USIM cards, USIM-1 of said terminal equipment corresponds to said first network and USIM-2 of said terminal equipment corresponds to said first network. Corresponds to the second network.

Selectably, said terminal equipment is in a radio resource control RRC connection state and/or a connection management CM connection state with said second network.

Optionally, said processing unit 820 is used to release RRC and/or CM connections with said second network when it decides to establish a connection with said first network.

Selectably, said first information comprises a service identifier and/or a priority corresponding to said service identifier.

Selectably, the service identifier is indicated by at least one of an application identifier, a service identifier, an internet protocol IP address, a media access control MAC address, a virtual local area network identifier, a data network name and an access point name.

Optionally, said communication unit 810 is for receiving second information sent by said first network for determining whether said terminal equipment establishes a connection with said first network. wherein the second information is a service priority, a service for which the terminal equipment needs to establish a connection with the first network, a service for which the terminal equipment establishes a connection with the first network Include at least one of the services that are not required.

Selectably, said second information corresponds to different information at different times and/or different locations.

Selectably, said processing unit 820 is used for determining whether to establish a connection with said first network according to said first information and at least one of the following information: The following information includes the second information and services that the terminal device is executing on the second network.

Selectably, said processing unit 820 establishes a connection with said first network according to the priority of services contained in said first information and the priority of services running on said second network. used to decide whether to

Selectably, said processing unit 820 determines whether the service contained in said first information belongs to a service that requires said terminal equipment in said second information to establish a connection with said first network. is used to determine whether to establish a connection with said first network according to.

Selectably, said second information is carried in at least one of a registration accept message, a protocol data unit PDU session establishment accept message, a PDU session modification accept message, a message in the UCU process.

Optionally, said second information is carried with said first message.

Optionally, said second information was sent to said terminal equipment by a Session Management Function SMF network element or a Strategy Control Function PCF network element.

Selectably, if said communication unit 810 decides to establish a connection with said first network, said communication unit 810 is configured in a first step for requesting said first network to establish an RRC connection with said first network. Used to send 1 request messages.

Optionally, said first request message comprises an RRC connection establishment request message and/or an RRC recovery request message.

Optionally, said first request message includes a cause value for indicating a cause that triggers said terminal equipment to send said first request message.

Selectably, the cause value includes USIM switching and/or a specific service identifier.

Selectably, if said communication unit 810 determines to establish a connection with said first network, said communication unit 810 sends a non-access stratum NAS message to said first network to establish a NAS connection with said first network. Used to establish

Optionally, said NAS messages include service request messages and/or registration request messages.

Selectably, said first message is a paging message.

Selectably, said first information and/or said second information in said paging message is sent on a user equipment identity UE ID granularity.

Optionally, said paging message is sent from access network equipment to said terminal equipment over an air interface.

Selectably, said access network equipment sends said paging message to said terminal equipment according to a third message, said third message obtained from control plane equipment or user plane equipment of a core network, said third message contains said first information and/or said second information.

Optionally, said third message sent from said core network control plane equipment to said access network equipment is a paging message.

Optionally, said third message sent from said user plane equipment to said access network equipment is a General Packet Radio Service Tunneling Protocol GTP-U message.

FIG. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application, which may be any one of the terminal devices described above. The terminal device 900 of FIG. 11 comprises a communication unit 910 and a processing unit 920,
Communication unit 910 is used to receive a first message sent by a first network.

a processing unit 920 is used to establish a connection with the first network in response to the first message; or
Said processing unit 920 is used for determining whether to establish a connection with said first network according to said first message.

Selectably, said first message is a paging message.

Optionally, said first message is sent when said first network determines that said terminal equipment needs to establish a connection with said first network.

Selectably, said processing unit 920 is used for determining whether to establish a connection with said first network according to whether said first message carries a first indication; A first instruction is used to instruct the terminal equipment to establish a connection with the first network.

Selectably, said processing unit 920 establishes a connection with said first network if said first message carries said first instruction; is not carried, it is used to not establish a connection with said first network.

Optionally, said first indication is sent when said first network determines that said terminal equipment needs to establish a connection with said first network.

Selectably, said terminal equipment is a terminal equipment supporting a plurality of Universal Subscriber Identity Module USIM cards, USIM-1 of said terminal equipment corresponds to said first network and USIM-2 of said terminal equipment corresponds to said first network. Corresponds to the second network.

Selectably, said terminal equipment is in a radio resource control RRC connection state and/or a connection management CM connection state with said second network.

Selectably, said first network determines whether said terminal equipment needs to establish a connection with said first network according to a first strategy, said first strategy comprising: service priority; At least one of a service that requires adding the first indication to the paging message and a service that does not require adding the first indication to the paging message.

Optionally, said first strategy corresponds to different information at different times and/or different places.

Optionally, said service is indicated by a service identifier.

Optionally, said first network determines whether said terminal equipment needs to establish a connection with said first network according to said first strategy and the service to be transmitted.

Optionally, the service to be transmitted is determined by the first network according to a service identifier in a user plane data packet.

Selectably, all or part of the first strategy information is obtained from at least one of the terminal equipment, signature information, strategy and charging control PCC strategy.

Optionally, said processing unit 920 is used to release RRC and/or CM connections with said second network upon establishing a connection with said first network.

Selectably, said communication unit 910, when establishing a connection with said first network, comprises a first terminal for requesting said first network to establish an RRC connection with said first network. used to send request messages for

Optionally, said first request message comprises an RRC connection establishment request message and/or an RRC recovery request message.

Optionally, said first request message includes a cause value for indicating a cause that triggers said terminal equipment to send said first request message.

Selectably, the cause value includes USIM switching and/or a specific service identifier.

Selectably, the processing unit 920, when establishing a connection with the first network, sends a non-access stratum NAS message to the first network to establish a NAS connection with the first network. used to make

Optionally, said NAS messages include service request messages and/or registration request messages.

Optionally, said paging message is sent from access network equipment to said terminal equipment over an air interface.

Selectably, said access network equipment sends said paging message to said terminal equipment according to a third message, said third message obtained from control plane equipment or user plane equipment of a core network, said third message contains said first indication and/or said service identifier.

Optionally, said third message sent from said control plane equipment to said access network equipment is a paging message.

Optionally, said third message sent from said user plane equipment to said access network equipment is a General Packet Radio Service Tunneling Protocol GTP-U message.

FIG. 12 is a schematic block diagram of a network device according to embodiments of the present application, which may be any one of the network devices described above. The network device 1000 of FIG. 12 comprises a communication unit 1010,
The communication unit 1010 is used for sending to a terminal equipment a first message containing first information for determining whether said terminal equipment establishes a connection with said first network.

Selectably, said terminal equipment is a terminal equipment supporting a plurality of Universal Subscriber Identity Module USIM cards, USIM-1 of said terminal equipment corresponds to said first network and USIM-2 of said terminal equipment corresponds to said first network. Corresponds to the second network.

Selectably, said terminal equipment is in a radio resource control RRC connection state and/or a connection management CM connection state with said second network.

Selectably, said first information comprises a service identifier and/or a priority corresponding to said service identifier.

Selectably, the service identifier is indicated by at least one of an application identifier, a service identifier, an internet protocol IP address, a media access control MAC address, a virtual local area network identifier, a data network name and an access point name.

Selectably, said communication unit 1010 is used to send to said terminal equipment second information for determining whether said terminal equipment establishes a connection with said first network; The information of 2 is service priority, services for which the terminal device needs to establish a connection with the first network, and services for which the terminal device does not need to establish a connection with the first network. including at least one of

Selectably, said second information corresponds to different information at different times and/or different locations.

Selectably, said second information is carried in at least one of a registration accept message, a protocol data unit PDU session establishment accept message, a PDU session modification accept message, a message in the user equipment configuration update UCU process.

Optionally, said second information is carried with said first message.

Optionally, said second information was sent to said terminal equipment by a Session Management Function SMF network element or a Strategy Control Function PCF network element.

Optionally, said communication unit 1010 is used for receiving a first request message sent by said terminal equipment for requesting to establish an RRC connection with said first network.

Optionally, said first request message comprises an RRC connection establishment request message and/or an RRC recovery request message.

Optionally, said first request message includes a cause value for indicating a cause that triggers said terminal equipment to send said first request message.

Selectably, the cause value includes USIM switching and/or a specific service identifier.

Optionally, said communication unit 1010 is used for receiving a non-access stratum NAS message sent by said terminal equipment for requesting to establish a NAS connection with said first network.

Optionally, said NAS messages include service request messages and/or registration request messages.

Selectably, said first message is a paging message.

Selectably, said first information and/or said second information in said paging message is sent on a user equipment identity UE ID granularity.

Optionally, said first network is an access network equipment and said paging message is sent from said access network equipment to said terminal equipment via an air interface.

Selectably, said access network equipment sends said paging message to said terminal equipment according to a third message, said third message obtained from control plane equipment or user plane equipment of a core network, said third message contains said first information and/or said second information.

Optionally, said third message sent from said core network control plane equipment to said access network equipment is a paging message.

Optionally, said third message sent from said user plane equipment to said access network equipment is a General Packet Radio Service Tunneling Protocol GTP-U message.

FIG. 13 is a schematic block diagram of a network device according to embodiments of the present application, which may be any one of the network devices described above. The network appliance 1100 of FIG. 13 comprises a processing unit 1110,
A processing unit 1110 is used for determining whether the terminal equipment needs to establish a connection with the first network according to the service to be transmitted.

Optionally, said network equipment further comprises a communication unit 1120, said communication unit 1120 being used to send a first message to said terminal equipment, said first message being transmitted by said first network to said Sent when the terminal device determines that it needs to establish a connection with said first network.

Selectably, said communication unit 1120 is used to send a first message comprising a first instruction to said terminal equipment, said first instruction said first network, said terminal equipment Sent when determining that a connection with said first network needs to be established.

Selectably, said first message is a paging message.

Selectably, said terminal equipment is a terminal equipment supporting a plurality of Universal Subscriber Identity Module USIM cards, USIM-1 of said terminal equipment corresponds to said first network and USIM-2 of said terminal equipment corresponds to said first network. Corresponds to the second network. The terminal equipment is in a radio resource control RRC connection state and/or a connection management CM connection state with the second network.

optionally, the processing unit 1110 is used to determine whether the terminal equipment needs to establish a connection with the first network according to the service to be transmitted and the second information; The second information includes service priority, services for which the terminal equipment needs to establish a connection with the first network, and services for which the terminal equipment does not need to establish a connection with the first network. including at least one of the services.

Selectably, said service priority comprises service priority at a particular time and/or service priority at a particular location.

Selectably, said second information comprises a service priority, and said processing unit 1110 determines that said terminal equipment should establish a connection with said first network according to the priority of said service to be transmitted. used to determine whether

Selectably, the processing unit 1110 determines whether the terminal equipment in the second information belongs to a service for which the terminal equipment in the second information needs to establish a connection with the first network. is used to determine if a connection needs to be established with said first network.

Optionally, said terminal equipment further comprises a communication unit 1120, said communication unit 1120 transmitting a first request message sent by said terminal equipment for requesting to establish an RRC connection with said first network. used to receive

Optionally, said first request message comprises an RRC connection establishment request message and/or an RRC recovery request message.

Optionally, said first request message includes a cause value for indicating a cause that triggers said terminal equipment to send said first request message.

Selectably, the cause value includes USIM switching and/or a specific service identifier.

Optionally, said terminal equipment further comprises a communication unit 1120, for receiving non-access stratum NAS messages for establishing a NAS connection with said first network, sent by said terminal equipment. used for

Optionally, said NAS messages include service request messages and/or registration request messages.

Optionally, said first network is an access network equipment and said paging message is sent from said access network equipment to said terminal equipment via an air interface. The access network equipment sends the paging message to the terminal equipment according to a third message, the third message obtained from a core network control plane equipment or user plane equipment, the third message being the first including an indication and/or said service identifier.

Optionally, said third message sent from said control plane equipment to said access network equipment is a paging message.

Optionally, said third message sent from said user plane equipment to said access network equipment is a General Packet Radio Service Tunneling Protocol GTP-U message.

FIG. 14 is a schematic structural diagram of a communication device 1200 according to an embodiment of the present application. The communication device 1200 as shown in FIG. 14 comprises a processor 1210, which is capable of recalling and running a computer program from memory to implement the methods of the embodiments herein.

Optionally, communication device 1200 may further comprise memory 1220, as shown in FIG. Processor 1210 can recall and run computer programs from memory 1220 to implement methods in embodiments herein.

Memory 1220 may be a separate device separate from processor 1210 or integrated with processor 1210 .

Optionally, as shown in FIG. 14, the communication device 1200 may further comprise a transceiver 1230, and the processor 1210 can control the transceiver 1230 to communicate with other devices; device, or receive information or data sent by other devices.

Transceiver 1230 may comprise a transmitter and a receiver. Transceiver 1230 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 1200 may specifically be a network device according to embodiments of the present application, and the communication device 1200 may perform corresponding processes implemented by the network device in each method according to embodiments of the present application. can be implemented and will not be repeated here for the sake of brevity.

Alternatively, the communication device 1200 may specifically be a mobile terminal/terminal device according to embodiments of the present application, and the communication device 1200 may be implemented by a mobile terminal/terminal device in each method according to the embodiments of the present application. Specifically, the communication device 1200 implements the corresponding process implemented by the first terminal device and/or the second terminal device in each method according to the embodiments of the present application. and will not be repeated here for the sake of brevity.

FIG. 15 is a schematic structural diagram of an apparatus according to an embodiment of the present application. Apparatus 1300 as shown in FIG. 15 comprises a processor 1310 capable of recalling and running a computer program from memory to implement the methods in the embodiments of the present application.

Optionally, device 1300 may further comprise memory 1320, as shown in FIG. Processor 1310 can recall and run computer programs from memory 1320 to implement methods in embodiments herein.

Memory 1320 may be a separate device independent of processor 1313 or integrated with processor 1310 .

Optionally, the device 1300 may further comprise an input interface 1330 . The processor 1310 can control the input interface 1330 to communicate with other devices or devices, specifically to obtain information or data transmitted by other devices or devices.

Optionally, the device 1300 may further comprise an output interface 1340. FIG. The processor 1310 can control the output interface 1340 to communicate with other devices or devices, specifically, output information or data to other devices or devices.

Optionally, the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in each method according to the embodiments of the present application, for the sake of brevity , and will not be repeated here.

Optionally, the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method according to the embodiments of the present application. and for the sake of brevity they are not repeated here.

It should be understood that the devices referred to in the embodiments of the present application may be chips, also called system level chips, system chips, chip systems or system-on-chips.

FIG. 16 is a schematic block diagram of a communication system 1400 according to an embodiment of the present application. As shown in FIG. 16, the communication system 1400 comprises terminal equipment 1410 and network equipment 1420 .

The terminal equipment 1410 can be used to implement the corresponding functions implemented by the terminal equipment in the above method, and the network equipment 1420 can be used to implement the corresponding functions implemented by the network equipment in the above method. , for the sake of brevity, will not be repeated here.

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip and has signal processing capabilities. In the process of implementation, each step of the above method embodiments can be completed by hardware integrated logic circuits or software type instructions in a processor. Such processors may be general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices. , discrete gate or transistor logic devices, discrete hardware components. Each method, step, and logic block diagram disclosed in an embodiment of the present application can be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and so on. The combined steps of the methods disclosed in the embodiments of the present invention can be directly implemented to be executed and completed by a hardware decoding processor, or to be executed and completed by a combination of hardware and software modules in the decoding processor. can do. A software module may reside in any art-mature storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers or the like. 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.

As can be appreciated, memory in embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory includes read-only memory (ROM), programmable read-only memory (ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory. It may be memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be Random Access Memory (RAM), used as an external cache. By way of illustration and not limitation, multiple forms of RAM may be utilized, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory. (Synchronous DRAM, SDRAM), Double Data Rate SDRAM, DDR SDRAM, Enhanced SDRAM, ESDRAM, Synchlink Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein includes, but is not limited to, these and any other suitable type of memory.

It should be understood that the above memories are illustrative rather than limiting, for example, the memory in the embodiments herein may be static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM). , Synchronous Dynamic Random Access Memory (Synchronous DRAM, SDRAM), Double Data Rate SDRAM ("DDR SDRAM"), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Dynamic Random Access Memory It may be access memory (Synchlink DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), that is, the memory in the embodiments of this application may be these and any other suitable type of memory. including but not limited to.

Embodiments of the present application further provide a computer-readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium is applicable to the network equipment in the embodiments of the present application, and the computer program instructs a computer to perform corresponding flows implemented by the network equipment in the methods of the embodiments of the present application. For the sake of execution and brevity, it will not be repeated here.

Alternatively, the computer-readable storage medium is applicable to the mobile terminal/terminal device in the embodiments of the present application, and the computer program is implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application in a computer. corresponding flow to be performed and is not repeated here for the sake of brevity.

Embodiments of the present application further provide a computer program product comprising computer program commands.

Optionally, the computer program product is applicable to the network equipment in the embodiments of the present application, and the computer program commands cause the computer to implement the corresponding flows implemented by the network equipment in the methods of the embodiments of the present application, concisely: For the sake of brevity, it is not repeated here.

Alternatively, the computer program product can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the computer program commands can cause the computer to correspond to the instructions implemented by the mobile terminal/terminal equipment in the methods of the embodiments of the present application. Let the flow run and for the sake of brevity it will not be repeated here.

Embodiments of the present application further provide computer programs.

Alternatively, the computer program can be applied to the network equipment in the embodiments of the present application, and when the computer program runs on the computer, the computer will be instructed to follow the corresponding flow implemented by the network equipment in the methods of the embodiments of the present application. and will not be repeated here for the sake of brevity.

Optionally, the computer program is applicable to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program runs on the computer, the mobile terminal/terminal device in the methods of the embodiments of the present application causes the computer to The corresponding flow to be implemented will not be repeated here for the sake of brevity.

Those skilled in the art can appreciate that each exemplary unit and algorithm step described in the embodiments disclosed herein can be combined and implemented in electronic hardware or a combination of computer software and electronic hardware. . Whether these functions are implemented in hardware or software depends on the particular application and design constraints of the technical solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementations are believed to be within the scope of the invention.

Those skilled in the art can refer to the corresponding steps in the above method embodiments for the specific working steps of the above-described systems, devices and units for convenient and simple explanation, and will be repeated here. I clearly understand not to.

It should be understood that in some embodiments according to the present application, the disclosed systems, devices and methods can be implemented in other manners. For example, the above device embodiments are merely exemplary, for example, the division of the units is only logic function division, and there are other division schemes in actual implementation, such as multiple units or Assemblies may be combined, or integrated into separate systems, or some features may be neglected or not implemented. Also, the mutual couplings or direct couplings or communication connections indicated or discussed may be indirect couplings or communication connections through some interface, device or unit, whether electrical, mechanical or otherwise. It can be a connection.

The units described as separate members above may or may not be separated physically, and the members indicated as units may or may not be physical units. , i.e. located at one location, or distributed over several network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the means of this embodiment.

Also, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may physically exist alone, or two or more units may be combined into one unit. may be integrated into one unit.

When the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored on a single computer-readable storage medium. For this understanding, the technical solution of the embodiments of the present invention can be essentially or the part contributing to the prior art, or the part of the technical solution can be expressed in the form of a software product. A computer software product is stored in one storage medium, and one computer device (such as a personal computer, a server, or a network device) executes all or part of the methods described in each embodiment of the present invention. including some directives of The aforementioned storage media include U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or CD, and other media capable of storing various program codes. is.

As described above, although it is only a specific embodiment of the present application, the scope of protection of the present application is not limited thereto, and variations or replacements that can be easily conceived by anyone skilled in the art within the technical scope disclosed in the present application include: All are included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the above claims.

Claims (16)

A wireless communication method applied to a terminal device supporting multiple Universal Subscriber Identity Module (USIM) cards , comprising:
the terminal equipment receiving a first message sent by a first network; and
said terminal establishing a connection with said first network in response to said first message ;
A wireless communication method , wherein the first message is a paging message carrying service information . 2. The method of claim 1, wherein the service information indicates a voice service. 2. The first message is sent when the first network determines that the terminal device needs to establish a connection with the first network or 2. The method described in 2. USIM-1 of the terminal device corresponds to the first network, USIM-2 of the terminal device corresponds to the second network ,
Method according to any one of claims 1 to 3 , characterized in that the terminal equipment is in a radio resource control RRC connection state and/or a connection management CM connection state with the second network . The method includes:
5. The method according to claim 4 , characterized in that, while establishing a connection with the first network, the terminal equipment releases an RRC connection and/or a CM connection with the second network. Method. The first network determines whether the terminal device needs to establish a connection with the first network according to a first strategy, wherein the first strategy includes service priority, paging message at least one of a service that requires adding a first indication and a service that does not require adding the first indication to a paging message ;
The service priority is used to identify services for which the terminal equipment needs to be connected to the first network and/or services for which the terminal equipment does not need to be connected to the first network. 4. The method of claim 3 , wherein: The information of all or part of the first strategy is obtained from the terminal device , and the terminal device sends to the first network via a non-access stratum (NAS) message a part or part of the first strategy. 7. A method according to claim 6 , characterized in that all information is transmitted . A wireless communication method comprising:
a first network determining whether a terminal device needs to establish a connection with said first network according to a first strategy; and
The wireless communication method, wherein the first network transmits a first message , which is a paging message carrying service information, to the terminal device. The first strategy is at least one of service priority, services requiring the addition of the first indication to the paging message, and services not requiring the addition of the first indication to the paging message. including
The service priority is used to identify services for which the terminal equipment needs to be connected to the first network and/or services for which the terminal equipment does not need to be connected to the first network. 9. The method of claim 8, wherein: A terminal device supporting multiple Universal Subscriber Identity Module (USIM) cards ,
a communication unit for receiving a first message transmitted by a first network;
a processing unit for establishing a connection with the first network in response to the first message ;
A terminal device, wherein the first message is a paging message carrying service information . 11. The terminal device according to claim 10, wherein said service information indicates a voice service. USIM-1 of the terminal device corresponds to the first network, USIM-2 of the terminal device corresponds to a second network, and the terminal device has a radio resource control RRC connection with the second network. 12. Terminal equipment according to claim 10 or 11 , characterized in that it is in a state and/or connection management CM connected state . The processing unit is
Terminal equipment according to claim 12 , characterized in that it is used for releasing RRC and/or CM connections with said second network while establishing a connection with said first network. The processing unit is
being used to send a non-access stratum NAS message to the first network while establishing a connection with the first network so as to establish a NAS connection with the first network; Terminal equipment according to any one of claims 10 to 13 , characterized in that 15. Terminal equipment according to claim 14 , characterized in that said NAS messages comprise service request messages and/or registration request messages. 10. A network appliance comprising a processor and a memory, the memory being used to store a computer program, the processor calling up and running the computer program stored in the memory, according to claim 8 or 9 . A network device characterized in that it is used to perform the method of

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