CN117715153A

CN117715153A - Network selection processing method, device, terminal and readable storage medium

Info

Publication number: CN117715153A
Application number: CN202211086056.4A
Authority: CN
Inventors: 王慧; 张鹏飞; 康艳超
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2024-03-15
Also published as: WO2024051565A1

Abstract

The application discloses a network selection processing method, a device, a terminal and a readable storage medium, which belong to the technical field of communication, and the network selection processing method of the embodiment of the application comprises the following steps: acquiring the corresponding relation between the bottom layer network and the upper layer network; accessing a first upper network or executing a network reselection process according to the corresponding relation; the correspondence includes at least one of: the first information comprises at least one first network list and an upper network corresponding to each first network list, wherein the first network list comprises at least one bottom network; the second information comprises at least one second network list and one bottom network corresponding to each second network list, and the second network list comprises at least one upper network which can be accessed through the bottom network; and the third information comprises at least one bottom network list and an upper network list corresponding to each bottom network list.

Description

Network selection processing method, device, terminal and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a network selection processing method, a network selection processing device, a terminal and a readable storage medium.

Background

With the development of communication technology, in a communication system, in order for a terminal to use a data service and a communication service at the same time, a mechanism of accessing an upper layer (overlay) network through an underlying (unrerley) network is considered to be introduced. Based on security or some business relation considerations, when a terminal accesses an overlay network through an underly network, there is a limitation on the underly network, that is, the terminal may access the overlay network through some designated underly networks, so how to select the underly network to access the overlay network becomes a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a network selection processing method, a network selection processing device, a terminal and a readable storage medium, which can solve the problem of the selection of an unresolved network.

In a first aspect, a network selection processing method is provided, including:

the terminal acquires the corresponding relation between the bottom layer network and the upper layer network;

the terminal accesses a first upper network or executes a network reselection process according to the corresponding relation;

wherein the correspondence includes at least one of:

the first information comprises at least one first network list and one upper network corresponding to each first network list, wherein the first network list comprises at least one bottom network;

The second information comprises at least one second network list and one bottom network corresponding to each second network list, wherein the second network list comprises at least one upper network which can be accessed through the bottom network;

the third information comprises at least one bottom network list and an upper network list corresponding to each bottom network list, the bottom network list comprises at least one bottom network, the upper network list comprises at least one upper network, and each upper network in the upper network list can be accessed through any bottom network in the bottom network list.

In a second aspect, there is provided a network selection processing apparatus, including:

the acquisition module is used for acquiring the corresponding relation between the bottom layer network and the upper layer network;

the execution module is used for accessing the first upper network or executing a network reselection process according to the corresponding relation;

wherein the correspondence includes at least one of:

In a third aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, where the communication interface is configured to obtain a correspondence between a bottom layer network and an upper layer network; the processor is used for accessing the first upper network or executing a network reselection process according to the corresponding relation; wherein the correspondence includes at least one of: the first information comprises at least one first network list and one upper network corresponding to each first network list, wherein the first network list comprises at least one bottom network; the second information comprises at least one second network list and one bottom network corresponding to each second network list, wherein the second network list comprises at least one upper network which can be accessed through the bottom network; the third information comprises at least one bottom network list and an upper network list corresponding to each bottom network list, the bottom network list comprises at least one bottom network, the upper network list comprises at least one upper network, and each upper network in the upper network list can be accessed through any bottom network in the bottom network list.

In a fifth aspect, a communication system is provided, comprising: the terminal and the network side device are used for executing the steps of the network selection processing method according to the first aspect.

In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.

In a seventh aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to execute programs or instructions for implementing the steps of the method according to the first aspect.

In an eighth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to carry out the steps of the method according to the first aspect.

In the embodiment of the application, the corresponding relation between the bottom layer network and the upper layer network is obtained, so that the bottom layer network can be selected based on the corresponding relation, and the corresponding upper layer network is accessed based on the selected bottom layer network, so that the terminal can use the services of two different networks at the same time. Meanwhile, when the second network currently accessed by the terminal belongs to the first bottom layer network corresponding to the first upper layer network, the second network can be directly used as the bottom layer network to access the first upper layer network, so that timeliness and reliability of acquiring the service from the first upper layer network by the terminal are improved.

Drawings

FIG. 1 is a schematic diagram of a network architecture to which the present application is applicable;

FIG. 2 is an exemplary diagram of a communication scenario in which the present application may be used;

FIG. 3 is a flowchart of a method for processing a network selection provided in the present application;

FIG. 4 is a flow chart of another method of processing a network selection provided herein;

FIG. 5 is a flow chart of yet another method of processing a network selection provided herein;

fig. 6 is a flowchart of a network selection processing device provided in the present application;

FIG. 7 is a block diagram of a communication device provided herein;

fig. 8 is a block diagram of a terminal provided in the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as codesDivision multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

For ease of understanding, some of the matters related to the embodiments of the present application are described below:

1. the terminal accesses the overlay network through the underly network.

As shown in fig. 2, the terminal accessing the overlay network through the underley network includes the following procedures:

1. the terminal registers to the public land mobile network (Public Land Mobile Network, PLMN) through a Uu port of the PLMN;

2. when the terminal needs to obtain service from an independent Non-Public Network (SNPN), the terminal establishes data connection to a Non-3GPP interactive function (Non-3GPP InterWorking Function,N3IWF) corresponding to the SNPN;

3. the terminal sends a registration message to an SNPN Core Network (CN) through the data connection, and the terminal uses PLMN subscription;

4. after SNPN CN registration is completed, the terminal obtains service at SNPN.

Since it is not clear how to select an underley network for a terminal at present, a network selection processing method of the present application is proposed.

The network selection processing method provided by the embodiment of the application is described in detail below by means of some embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 3, an embodiment of the present application provides a network selection processing method, as shown in fig. 3, including:

Step 301, a terminal acquires a corresponding relationship between a bottom network and an upper network;

step 302, the terminal accesses a first upper network or executes a network reselection process according to the corresponding relation;

wherein the correspondence includes at least one of:

In this embodiment of the present application, the first information may be understood to include a correspondence between each upper layer network and a bottom layer network allowed to be accessed by the upper layer network, that is, the first information includes an underley network list corresponding to a certain overlay network. The above second information may be understood to include a correspondence between each of the underlying network and a network accessible to the underlying network, that is, the second information includes an overlay network list accessible through an underlay network. For the third information, when the upper network list includes at least two upper networks and the lower network list includes at least two lower networks, the third information may be understood as including a correspondence between at least two undely networks and at least two overlay networks.

The first upper network may be understood as a target network to be accessed. Wherein, the bottom layer network may include an SNPN and/or a PLMN, and the upper layer network may also include an SNPN and/or a PLMN.

For example, when the terminal accesses the SNPN service through NWu using the user plane established on the PLMN, the PLMN is an underlay network and the SNPN is an overlay network. When the terminal accesses PLMN services through NWu using a user plane established on an SNPN, the PLMN is an underley network and the SNPN is an overlay network.

Optionally, the terminal accessing the first upper layer network according to the correspondence relationship may be understood that the second network belongs to a first bottom layer network corresponding to the first upper layer network, where the terminal accesses the first upper layer network based on the second network as a bottom layer network, and the second network is a network to which the terminal is currently accessing, where the terminal may directly access the second network, or may access the second network through a certain bottom layer network. That is, the terminal may directly send the registration message to the first upper network through the second network, thereby registering in the first upper network to obtain the service of the first upper network, so that network switching based on the random access procedure is not required, and reliability of registering in the first upper network can be improved, thereby improving reliability of obtaining the service from the first upper network.

The terminal performs the network reselection process according to the correspondence relationship, which can be understood that the second network does not belong to the first bottom network corresponding to the first upper network, so as to determine the bottom network corresponding to the first upper network based on the correspondence relationship, thereby implementing network reselection. After the network reselection is performed, the reselected bottom layer network can be accessed again, and the first upper layer network is accessed based on the reselected bottom layer network.

In the embodiment of the application, the corresponding relation between the bottom layer network and the upper layer network is obtained, so that the bottom layer network can be selected based on the corresponding relation, and the corresponding upper layer network is accessed based on the selected bottom layer network, so that the terminal can use the services of two different networks at the same time. Meanwhile, when the current direct second network of the terminal belongs to the first bottom network corresponding to the first upper network, the method can refer to directly accessing the first upper network based on the second network as the bottom network, so that timeliness and reliability of the terminal for acquiring the service from the first upper network are improved.

Optionally, in some embodiments, the accessing, by the terminal, the first upper layer network according to the correspondence, or performing a network reselection procedure includes:

The terminal determines whether a second network belongs to a first bottom layer network corresponding to the first upper layer network according to the corresponding relation, wherein the second network is a network accessed currently;

when the second network belongs to the first bottom network, the terminal accesses the first upper network by taking the second network as a bottom network;

and under the condition that the second network does not belong to the first bottom layer network, the terminal performs a network reselection process based on the first bottom layer network.

In this embodiment of the present application, the number of the first upper layer networks may be one, that is, the bottom layer network is selected according to a first upper layer network and a corresponding relationship. In the case that the second network belongs to the first lower network, it may be understood that the first upper network may be accessed through the second network as a lower network, and the second network may be used as a lower network. In case the second network does not belong to the first underlay network, then the underlay network needs to be reselected based on the first underlay network, so that the first upper layer network can be accessed based on the reselected underlay network.

It should be noted that, for the correspondence relationship including the difference of the content, the determining whether the second network belongs to the first bottom network corresponding to the first upper network is different, for example, in some embodiments, the determining, by the terminal, whether the second network belongs to the first bottom network corresponding to the first upper network according to the correspondence relationship includes:

If the correspondence includes the first information, the terminal determines whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the second network is included in the first network list;

if the correspondence includes the second information, the terminal determines whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the first upper network is included in a second network list corresponding to the second network as a bottom network;

and if the corresponding relation comprises the third information, the terminal determines whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the second network is contained in the bottom network list corresponding to the first upper network.

In this embodiment of the present application, for the first information, when the second network includes the first network list, it may be determined that the second network belongs to a first bottom layer network corresponding to the first upper layer network, or it is determined that the second network does not belong to the first bottom layer network corresponding to the first upper layer network.

For the second information, when the first upper layer network is included in the second network list corresponding to the second network serving as the bottom layer network, it may be determined that the second network belongs to the first bottom layer network corresponding to the first upper layer network, or else, it is determined that the second network does not belong to the first bottom layer network corresponding to the first upper layer network.

For the third information, when the second network is included in the bottom layer network list corresponding to the first upper layer network, it may be determined that the second network belongs to the first bottom layer network corresponding to the first upper layer network, or else, it is determined that the second network does not belong to the first bottom layer network corresponding to the first upper layer network.

Optionally, in some embodiments, the terminal performing a network reselection procedure based on the first underlay network includes:

the terminal performs a network reselection procedure based on a preferred access mode (prefer access mode) and the first underlying network.

In this embodiment of the present application, the above preferred access mode may be indicated by a protocol convention, a user setting, or a network side device, which is not further limited herein.

Optionally, in some embodiments, in a case where the terminal selects at least two overlay networks to access, the underlay network is selected based on an underlay network list that can access both overlay networks simultaneously. For example, in some embodiments, in a case where the number of the first upper layer networks is at least two, the accessing, by the terminal, the first upper layer network according to the correspondence relationship or performing a network reselection procedure includes:

The terminal determines at least one bottom layer network corresponding to each first upper layer network, wherein the at least one bottom layer network can be used for the first upper layer network;

the terminal determines a third network list based on the at least one bottom network corresponding to each first upper network, wherein the third network list comprises bottom networks which can be used for each first upper network at the same time in the at least one bottom network corresponding to each first upper network;

when a second network belongs to the third network list, the terminal accesses each first upper network by taking the second network as a bottom network, wherein the second network is a network which is accessed currently;

and in the case that the second network does not belong to a third network list, the terminal performs a network reselection process based on the third network list.

Optionally, in some embodiments, the terminal performing a network reselection procedure based on the third network list includes:

the terminal performs a network reselection procedure based on the preferred access mode and the third network list.

Optionally, the preferred access mode satisfies at least one of:

When the preferred access mode is an independent non-public network SNPN access mode, preferentially selecting or only selecting SNPN as a bottom network;

in case that the preferred access mode is a non-independent non-public network SNPN access mode, preferentially selecting or only selecting a public land mobile network PLMN as a bottom network;

in case the preferred access mode is a new access mode, a SNPN or PLMN may be selected as the underlying network.

Optionally, in some embodiments, the network reselection procedure satisfies at least one of:

under the condition that the execution of the network reselection process is determined according to the corresponding relation, the network reselection process is immediately triggered;

triggering the network reselection process based on a timer under the condition that the network reselection process is determined to be executed according to the corresponding relation;

and triggering the network reselection process based on the currently executed service under the condition that the network reselection process is determined to be executed according to the corresponding relation.

Optionally, triggering the network reselection procedure based on the currently performed service includes at least one of:

triggering and executing a network reselection process at the end of the first service under the condition that the currently executed service comprises the first service;

In case the currently performed service does not comprise the first service, the performing of the network reselection procedure is immediately triggered.

In this embodiment of the present application, the first service may be understood as a service with a high priority, and since the service with a high priority needs to be triggered to execute the network reselection process after the service with a high priority is executed, interruption of the service with a high priority can be avoided, and continuity of the service with a high priority is ensured. It should be noted that, the high-priority service may be a predefined service, or may be a service having a higher priority than a target service that needs to be acquired in the first upper network after the handover.

Optionally, in some embodiments, the first service includes at least one of:

international mobile subscriber registration related signaling;

voice communication of the media telephone;

multimedia telephone video call;

short message service initiated through Non-Access Stratum (NAS);

short message service initiated over internet protocol (Internet Protocol, IP).

Optionally, in some embodiments, the correspondence is stored in a global subscriber identity card, the terminal, or SNPN subscription information.

In this embodiment of the present application, the storing of the correspondence in the global subscriber identity card may be understood as that the correspondence is stored in the global subscriber identity card of the terminal, and the storing of the correspondence in the terminal may be understood as that the correspondence is stored in a Mobile Equipment (ME).

Alternatively, if the correspondence is stored in the SNPN subscription information, the correspondence may be stored in a certain parameter of the SNPN subscription information, for example, in an entry (entry) of the SNPN subscription information.

For a better understanding of the present application, the following detailed description is provided by way of some examples.

Optionally, in some embodiments, the method selects an unresolved network according to a target overlay network (overlay network 1) and the corresponding relationship, as shown in fig. 4, and the specific flow includes:

step 400, the terminal stores the correspondence between the underley and overlay networks.

The underly and overlay networks may be PLMNs or SNPNs. The correspondence may be preconfigured in the terminal, obtained from an underly network, or obtained from an overlay network. The correspondence includes at least one of:

Optionally, the Overlay network is a target network of which the terminal wants to acquire the service; the underway network is a network which is accessed by the terminal through a Uu port and establishes data connection for accessing the Overlay network.

Step 401: the terminal performs network selection, selects an overlay network 2 and registers;

step 402: the terminal wants to register with the overlay network 1;

step 403: the terminal checks the corresponding relation information;

optionally, after the terminal accesses the overlay network 2, if the terminal wants to access a certain overlay network, the correspondence is checked:

Case 1, if the correspondence contains first information: if the currently registered network is in the first network list, accessing the overlay network 1 through the current underlay network (i.e. the overlay network 2) to register and acquire the service, and skipping the step 404 and the step 405; if the currently registered network is not in the first network list, the terminal triggers a network reselection procedure.

Case 2, if the correspondence contains the second information: if the overlay network 1 which the terminal wants to register is in the second network list where the current registered network is located, accessing the overlay network 1 through the current underley network (i.e. the overlay network 2) to register and acquire the service, and skipping the step 404 and the step 405; if the overlay network 1 that the terminal wants to register is not in the second network list where the current registered network is located, the terminal triggers a network reselection procedure.

Case 3, if the correspondence contains third information: if the currently registered network is in the bottom network list of the overlay network 1, accessing the overlay network 1 through the current underly network (i.e. the overlay network 2) to register and acquire the service, and skipping step 404 and step 405; if the currently registered network is not in the bottom network list, the terminal triggers a network reselection procedure.

Step 404, the terminal triggers a network reselection procedure.

Alternatively, the terminal may perform a network reselection procedure based on the preference access mode.

The preferred access mode satisfies at least one of:

Optionally, in some embodiments, the terminal immediately triggers the network reselection procedure.

Optionally, in some embodiments, a timer (timer) may be set, after expiration of which a network reselection procedure is triggered.

Optionally, in some embodiments, determining whether to initiate the network reselection procedure based on whether there is high priority traffic, i.e., no high priority traffic, then the web reselection procedure is initiated by the riser; and if the service with high priority is available, initiating a network reselection process after the service with the equal high priority is ended. The high priority traffic includes one of:

International mobile subscriber registration related signaling;

voice communication of the media telephone;

multimedia telephone video call;

short message service initiated by a non-access stratum NAS;

short message service initiated over internet protocol IP.

Step 405, optionally, the terminal registers in the reselected underly network 1;

in step 406, the terminal registers with the overlay network 1.

Optionally, in some embodiments, the underlay network is selected according to at least two target overlap networks (overlap network 1 and overlap network 2) and the correspondence, as shown in fig. 5, specifically including the following flows:

step 500, the terminal stores the correspondence between the underley and overlay networks.

Step 501: the terminal performs network selection, selects an overlay network 3 and registers;

step 502: the terminal wants to register with the overlay network 1 and the overlay network 2;

step 503: the terminal checks the corresponding relation of the overlay network 1 and the overlay network 2 respectively;

firstly, selecting an available underlay network list for each target overlay network respectively;

second, an intersection is selected from a plurality of available underly network lists as an underly network list applicable to both the overlay network 1 and the overlay network 2.

If the currently registered network is included in the underlay network list applicable to both the overlay network 1 and the overlay network 2, accessing the overlay network 1 and the overlay network 2 through the current underlay network (i.e. the overlay network 3) to register and acquire the service, and skipping the step 504 and the step 505.

Step 504: and if the currently registered network is not included in the underlay network list applicable to the overlay network 1 and the overlay network 2 at the same time, triggering a network reselection process by the UE, and selecting one underlay network 1 to access in the underlay network list applicable to the overlay network 1 and the overlay network 2 at the same time.

Step 505: the terminal registers with the reselected unresolved network 1.

Step 506a: the terminal registers with the overlay network 1.

Step 506b: the terminal registers with the overlay network 2.

According to the network selection processing method provided by the embodiment of the application, the execution main body can be a network selection processing device. In the embodiment of the present application, a network selection processing device executes a network selection processing method as an example, and the network selection processing device provided in the embodiment of the present application is described.

Referring to fig. 6, the embodiment of the present application further provides a network selection processing apparatus, as shown in fig. 6, the network selection processing apparatus 600 includes:

an obtaining module 601, configured to obtain a correspondence between a bottom layer network and an upper layer network;

an execution module 602, configured to access a first upper network or execute a network reselection procedure according to the correspondence;

wherein the correspondence includes at least one of:

Optionally, the executing module 602 includes:

a first determining unit, configured to determine, according to the correspondence, whether a second network belongs to a first bottom layer network corresponding to the first upper layer network, where the second network is a network that is currently accessed;

a first access unit, configured to access, when the second network belongs to the first lower network, the first upper network with the second network as a lower network;

and the first execution unit is used for executing a network reselection process based on the first bottom layer network under the condition that the second network does not belong to the first bottom layer network.

Optionally, the first determining unit is specifically configured to perform the following operations:

determining whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the second network is contained in the first network list or not when the correspondence relation includes the first information;

determining whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the first upper network is contained in a second network list corresponding to the second network as a bottom network when the corresponding relation includes the second information;

and determining whether the second network belongs to a first bottom network corresponding to the first upper network based on whether the second network is contained in the bottom network list corresponding to the first upper network when the corresponding relation includes the third information.

Optionally, the first execution unit is specifically configured to execute a network reselection procedure based on a preferred access mode and the first underlying network.

Optionally, in the case that the number of the first upper layer networks is at least two, the executing module 602 includes:

A second determining unit, configured to determine, for each of the first upper networks, at least one bottom layer network corresponding to the first upper network, where the at least one bottom layer network is available to the first upper network;

a third determining unit, configured to determine a third network list based on the at least one bottom layer network corresponding to each first upper layer network, where the third network list includes bottom layer networks that can be used for each first upper layer network at the same time in the at least one bottom layer network corresponding to each first upper layer network;

a second access unit, configured to access each of the first upper networks with a second network as a bottom network when the second network belongs to the third network list, where the second network is a currently accessed network;

and the second execution unit is used for executing a network reselection process based on a third network list in the case that the second network does not belong to the third network list.

Optionally, the second execution unit is specifically configured to: and performing a network reselection procedure based on the preferred access mode and the third network list.

Optionally, the preferred access mode satisfies at least one of:

Optionally, the network reselection procedure satisfies at least one of:

Optionally, the first service includes at least one of:

international mobile subscriber registration related signaling;

voice communication of the media telephone;

multimedia telephone video call;

short message service initiated by a non-access stratum NAS;

short message service initiated over internet protocol IP.

Optionally, the correspondence is stored in a global subscriber identity card, a terminal or SNPN subscription information.

The network selection processing device in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The network selection processing device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 3 to 5, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or an instruction that can be executed on the processor 701, and the program or the instruction implements each step of the above-mentioned network selection processing method embodiment when executed by the processor 701, and the steps achieve the same technical effects, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for acquiring the corresponding relation between the bottom layer network and the upper layer network; the processor is used for accessing the first upper network or executing a network reselection process according to the corresponding relation; wherein the correspondence includes at least one of: the first information comprises at least one first network list and one upper network corresponding to each first network list, wherein the first network list comprises at least one bottom network; the second information comprises at least one second network list and one bottom network corresponding to each second network list, wherein the second network list comprises at least one upper network which can be accessed through the bottom network; the third information comprises at least one bottom network list and an upper network list corresponding to each bottom network list, the bottom network list comprises at least one bottom network, the upper network list comprises at least one upper network, and each upper network in the upper network list can be accessed through any bottom network in the bottom network list. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 800 includes, but is not limited to: at least part of the components of the radio frequency unit 801, the network module 802, the audio output unit 803, the input unit 804, the sensor 805, the display unit 806, the user input unit 807, the interface unit 808, the memory 809, and the processor 810, etc.

Those skilled in the art will appreciate that the terminal 800 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 810 by a power management system for performing functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 804 may include a graphics processing unit (Graphics Processing Unit, GPU) 8041 and a microphone 8042, with the graphics processor 8041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes at least one of a touch panel 8071 and other input devices 8072. Touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two parts, a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 801 may transmit the downlink data to the processor 810 for processing; in addition, the radio frequency unit 801 may send uplink data to the network side device. In general, the radio frequency unit 801 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 809 may be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 809 may include volatile memory or nonvolatile memory, or the memory 809 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 809 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.

The radio frequency unit 801 is configured to obtain a correspondence between a bottom layer network and an upper layer network;

a processor 810, configured to access the first upper layer network or perform a network reselection procedure according to the correspondence;

wherein the correspondence includes at least one of: the first information comprises at least one first network list and one upper network corresponding to each first network list, wherein the first network list comprises at least one bottom network;

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the above embodiment of the network selection processing method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is configured to run a program or an instruction, implement each process of the above embodiment of the network selection processing method, and achieve the same technical effect, so as to avoid repetition, and not be repeated here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned network selection processing method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a communication system, which comprises: the terminal is configured to execute each process of each method embodiment of the terminal side as shown in fig. 3 and described above, and achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A network selection processing method, comprising:

wherein the correspondence includes at least one of:

2. The method according to claim 1, wherein the terminal accessing the first upper network or performing a network reselection procedure according to the correspondence comprises:

3. The method of claim 2, wherein the determining, by the terminal, whether the second network belongs to the first lower network corresponding to the first upper network according to the correspondence relation comprises:

4. The method of claim 2, wherein the terminal performing a network reselection procedure based on the first underlay network comprises:

the terminal performs a network reselection procedure based on a preferred access mode and the first underlay network.

5. The method according to claim 1, wherein, in the case that the number of the first upper layer networks is at least two, the terminal accesses the first upper layer network or performs a network reselection procedure according to the correspondence relationship, including:

6. The method of claim 5, wherein the terminal performing a network reselection procedure based on the third network list comprises:

7. The method according to claim 4 or 6, wherein the preferred access mode satisfies at least one of:

8. The method according to any one of claims 1 to 7, wherein the network reselection procedure satisfies at least one of:

9. The method of claim 8, wherein triggering the network reselection procedure based on a currently executing service comprises at least one of:

10. The method of claim 9, wherein the first service comprises at least one of:

international mobile subscriber registration related signaling;

voice communication of the media telephone;

multimedia telephone video call;

short message service initiated by a non-access stratum NAS;

short message service initiated over internet protocol IP.

11. The method according to any of claims 1 to 7, wherein the correspondence is stored in a global subscriber identity card, the terminal or a SNPN subscription.

12. A net selection processing device, characterized by comprising:

wherein the correspondence includes at least one of:

13. The apparatus of claim 12, wherein the execution module comprises:

14. The apparatus according to claim 13, wherein the first determining unit is specifically configured to:

15. The apparatus according to claim 13, wherein the first performing unit is configured to perform a network reselection procedure based on a preferred access mode and the first underlay network.

16. The apparatus of claim 12, wherein, in the case where the number of the first upper layer networks is at least two, the execution module includes:

17. The apparatus of claim 16, wherein the second execution unit is specifically configured to: and performing a network reselection procedure based on the preferred access mode and the third network list.

18. The apparatus according to claim 15 or 17, wherein the preferred access mode satisfies at least one of:

19. The apparatus according to any one of claims 12 to 18, wherein the network reselection procedure satisfies at least one of:

20. The apparatus of claim 19, wherein triggering the network reselection procedure based on a currently executing service comprises at least one of:

21. The apparatus of claim 20, wherein the first service comprises at least one of:

international mobile subscriber registration related signaling;

voice communication of the media telephone;

multimedia telephone video call;

short message service initiated by a non-access stratum NAS;

short message service initiated over internet protocol IP.

22. The apparatus according to any one of claims 12 to 18, wherein the correspondence is stored in a global subscriber identity, a terminal or a SNPN subscription.

23. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the network selection processing method according to any one of claims 1 to 11.

24. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the network selection processing method according to any one of claims 1 to 11.