Network change methods and equipment

Abstract

This application discloses a network modification method and device, belonging to the field of communication technology. The network modification method of this application includes: a terminal determining whether to perform a network modification operation based on a first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network modification operation.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a network modification method and device, which may include a network modification apparatus, a terminal, or a network-side device. Background Technology

[0002] Typically, the Home Public Land Mobile Network (HPLMN) can guide terminals in automatic network selection mode to search for and access the Visited Public Land Mobile Network (VPLMN), enabling the terminals to register with the VPLMN as quickly as possible.

[0003] However, after a terminal registers with the VPLMN, it may not be able to determine whether to perform a network change operation. For example, the terminal may not be able to determine whether to remain in the VPLMN or leave the VPLMN, which may lead to unnecessary service interruptions and affect communication performance. Summary of the Invention

[0004] This application provides a network change method and device that can solve the problem of communication performance being affected because the terminal cannot determine whether to perform a network change operation.

[0005] In a first aspect, a network change method is provided, comprising: a terminal determining whether to perform a network change operation based on a first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

[0006] Secondly, a network change method is provided, comprising: a network-side device sending an indication message, the indication message being used to instruct a terminal not to perform a network change operation.

[0007] Thirdly, a network change apparatus is provided, comprising: a processing module, configured to determine whether to perform a network change operation based on a first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

[0008] Fourthly, a network change device is provided, comprising: a sending module for sending indication information, the indication information being used to instruct a terminal not to perform a network change operation.

[0009] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, the program or instructions implementing the method as described in the first aspect when executed by the processor.

[0010] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to determine whether to perform a network change operation based on a first PLMN or indication information, the indication information being used to indicate whether to perform the network change operation.

[0011] In a seventh aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the method as described in the second aspect.

[0012] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send indication information, the indication information being used to instruct a terminal not to perform a network change operation.

[0013] A ninth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the method as described in the first or second aspect.

[0014] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run programs or instructions to implement the method as described in the first or second aspect.

[0015] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a non-transient storage medium, the computer program / program product being executed by at least one processor to implement the method as described in the first or second aspect.

[0016] In this embodiment, the terminal can determine whether to perform a network change operation based on the PLMN or indication information, which solves the problem that communication performance is affected because the terminal cannot determine whether to perform a network change operation, and facilitates the improvement of communication performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a wireless communication system according to an embodiment of this application;

[0018] Figure 2 This is a schematic flowchart of a network modification method according to an embodiment of this application;

[0019] Figure 3 This is a schematic flowchart of a network modification method according to an embodiment of this application;

[0020] Figure 4 This is a schematic flowchart of a network modification method according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the network modification device according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the network modification device according to an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram of the terminal structure according to an embodiment of this application;

[0025] Figure 9 This is a schematic diagram of the structure of a network-side device according to an embodiment of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier-Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description. These technologies can also be applied to applications beyond NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0029] Figure 1This diagram illustrates a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. In this context, terminal 11 can also be referred to as a terminal device or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), next-generation node B (gNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0030] The network modification method and device provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0031] The main idea of ​​this application's embodiments is as follows: When a terminal receives Steer of Roaming (SOR) information while in an idle state within a second Public Land Mobile Network (PLMN), this SOR information instructs the terminal to execute the SOR procedure and / or the Steer of Roaming Connected Mode Control Information (SOR-CMCI) procedure (e.g., SOR-CMCI is running). In this situation, if the terminal changes its registered PLMN, for example, switching from the second PLMN to the first PLMN (i.e., a handover process occurs), the first PLMN may no longer use the SOR procedure, but the terminal may not stop the current SOR procedure and / or SOR-CMCI procedure, and may continue to perform network change operations, leading to service interruption. In this application's embodiments, the terminal can determine whether to perform network change operations based on the first PLMN or the indication information.

[0032] It should be noted that the SOR mentioned in the various embodiments of this application is explained as follows: A technique whereby a roaming UE is encouraged to roam to a preferred roamed-to-network indicated by the Home Public Land Mobile Network (HPLMN). The SOR-CMCI mentioned in the various embodiments of this application is explained as follows: HPLMMN timing information to control the timing for a UE in connected mode to move to idle mode in order to perform steering of roaming.

[0033] To solve the above technical problems, such as Figure 2 As shown in the figure, this application embodiment provides a network modification method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal, and the method includes the following steps.

[0034] S202: The terminal determines whether to perform a network change operation based on the first PLMN or indication information. The indication information is used to indicate whether to perform the network change operation.

[0035] The first PLMN may include at least one of the following: 1) the PLMN registered by the terminal; 2) the PLMN selected by the terminal; 3) the current PLMN of the terminal; 4) the PLMN currently chosen by the terminal; 5) the target PLMN in the switching scenario, for example, the target PLMN in the inter-PLMN handover scenario; 6) the target PLMN in the redirection scenario, for example, the target PLMN in the inter-PLMN redirection scenario.

[0036] The aforementioned instruction information can be used to instruct the terminal not to perform network change operations. This instruction information can be generated by the terminal's HPLMN. In one example, the first PLMN is an HPLMN, and the HPLMN directly sends the instruction information to the terminal; in another example, the first PLMN is not an HPLMN, and the HPLMN sends the instruction information to the first PLMN, which then forwards the instruction information to the terminal.

[0037] Optionally, before S202, the following step may be included: the terminal switches from the second PLMN to the first PLMN.

[0038] Before the terminal switches from the second PLMN to the first PLMN, the terminal can also receive SOR information. The SOR message is used to instruct the terminal to perform the SOR procedure and / or the SOR-CMCI procedure. In this way, the terminal can perform the SOR procedure and / or the SOR-CMCI procedure according to the SOR message.

[0039] The network change method provided in this application allows the terminal to determine whether to perform a network change operation based on the PLMN or indication information. This solves the problem of communication performance being affected by the terminal's inability to determine whether to perform a network change operation, and facilitates improved communication performance.

[0040] The network change method provided in this application embodiment allows the terminal to avoid performing a network change operation if the first PLMN after the switch is not the network that the HPLMN wants the terminal to leave, thus ensuring that the terminal's services are not interrupted and improving communication performance.

[0041] Optionally, the terminal in S202 determines whether to perform a network change operation based on the first PLMN, including at least one of the following 1) to 4):

[0042] 1) In response to the first PLMN being an Equivalent Home Public Land Mobile Network (EHPLMN) or HPLMN, the terminal does not perform a network change operation. Alternatively, in this embodiment, the terminal may perform a network change operation in response to the first PLMN not being an EHPLMN or HPLMN.

[0043] 2) In response to the first PLMN being a PLMN in a User-Controlled Public Land Mobile Network (UPLMN), the terminal does not perform a network change operation. Alternatively, in this embodiment, the terminal may perform a network change operation in response to the first PLMN not being a PLMN in a UPLMN.

[0044] Optionally, this embodiment may further include the following steps: when the terminal determines that the first PLMN belongs to the first list, it determines that the first PLMN is a PLMN in the UPLMN; wherein, the first list includes a list of user-controlled PLMN selectors with access technology.

[0045] 3) If the first PLMN is the highest priority PLMN in the Operator-Controlled Public Land Mobile Network (OPLMN), the terminal does not perform a network change operation. Alternatively, in this embodiment, if the first PLMN is not the highest priority PLMN in the OPLMN, the terminal performs a network change operation.

[0046] Optionally, this embodiment may further include the following step: if the terminal determines that the first PLMN belongs to the second list, it determines that the first PLMN is a PLMN in the OPLMN; wherein, the second list includes a list of operator-controlled PLMN selectors with access technology.

[0047] 4) In response to the first PLMN being a non-highest priority PLMN in the OPLMN, the terminal either does not perform a network change operation or performs a network change operation.

[0048] In other embodiments, the terminal determining whether to perform a network change operation based on the first PLMN in S202 includes: in response to the first PLMN not being an EHPLMN, HPLMN, UPLMN, or OPLMN, the terminal either does not perform a network change operation or performs a network change operation.

[0049] In a specific embodiment, if the terminal is currently executing the SOR or SOR-CMCI process, it switches to the first PLMN. If the terminal identifies the first PLMN as UPLMN, the terminal stops the SOR or SOR-CMCI process, for example, by stopping the Tsor-cm timer.

[0050] The Tsor-cm timer is used by the terminal to perform network change operations when the Tsor-cm timer expires. For example, when the Tsor-cm timer expires, the terminal needs to release the current service and reselect a PLMN.

[0051] Optionally, the non-performance of network change operations mentioned in the foregoing embodiments may include at least one of the following:

[0052] 1) While the timer is running, the terminal stops the timer, wherein the timer is used by the terminal to perform a network change operation if the timer expires. Optionally, the timer may be a Tsor-cm timer.

[0053] 2) If the terminal is executing the SOR procedure, the terminal stops executing the SOR procedure.

[0054] 3) When the terminal is performing the SOR procedure, the terminal performs the operation as if no SOR is configured or received.

[0055] 4) If the terminal is executing the SOR-CMCI process, the terminal stops the SOR-CMCI process.

[0056] 5) When the terminal is performing the SOR-CMCI procedure, the terminal performs the operation as if no SOR-CMCI is configured or received.

[0057] 6) The terminal does not enter idle mode.

[0058] 7) The terminal does not perform the de-registration procedure.

[0059] 8) The terminal allows the transmission of 5GSM session management messages. For example, the terminal cancels the following behavior: suspend the transmission of 5GSM messages until the N1 non-access stratum (NAS) signalling is released.

[0060] Optionally, the indication information mentioned in the preceding embodiments may be sent by the HPLMN of the terminal.

[0061] Optionally, the indication information is represented by at least one bit or byte.

[0062] Optionally, before the terminal obtains the indication information, the method further includes: the terminal sending a PLMN list stored by the terminal to a Unified Data Management (UDM) network element or a Steer of Roaming Application Function (SOR-AF) network element, wherein the PLMN list is used to determine the indication information. For example, the network-side device can determine, based on the PLMN list, whether the indication information instructs the terminal to perform a network change operation or instructs the terminal not to perform a network change operation.

[0063] The PLMN list can be a list of user-controlled PLMN selectors with access technology, or a list of preferred PLMN / access technology combinations.

[0064] Optionally, the PLMN list stored in the terminal may be carried by at least one of the following: a registration request message; a registration complete message; a deregistration request message (usually initiated by the terminal); a deregistration accept message (usually terminated by the terminal); a service request message; a control plane service request message; a configuration update complete message; an authentication response message; an authentication failure message; an identity response message; a security mode complete message; a security mode reject message; a 5GMM status message; a notification response message; and an uplink non-access stratum transport (UL NAS transport) message.

[0065] To illustrate the network modification method provided in the embodiments of this application in detail, the following will describe it in conjunction with several specific embodiments.

[0066] Example 1

[0067] This embodiment mainly describes the situation where the terminal (UE) hands over to the UPLMN, which corresponds to the first PLMN in the previous implementation, such as... Figure 3 As shown, this embodiment includes the following steps.

[0068] 101: The UE is currently in VPLMN1 (corresponding to the second UPLMN in the previous implementation). The UE receives SOR information, which instructs the UE to perform the SOR procedure and / or the SOR-CMCI procedure. The terminal may start the Tsor-cm timer.

[0069] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation). For example, when the HANDOVER enters VPLMN2, the UE recognizes that VPLMN2 is a UPLMN (for example, VPLMN2 is part of the "User Controlled PLMN Selector with Access Technology" list).

[0070] Optionally, the "UE enters VPLMN2" includes at least one of the following: 1) the UE completes a handover in VPLMN2; 2) the UE resides in VPLMN2; 3) the UE initiates registration in VPLMN2;

[0071] 4) The UE receives a registration success message in the VPLMN2. 5) The UE sends a registration completion message in the VPLMN2.

[0072] 103: In this embodiment, the terminal determines that it will not perform a network change operation based on VPLMN2.

[0073] The failure to perform network change operations mentioned here may include at least one of the following: stopping the Tsor-cm timer; not entering the idle state; not performing the deregistration procedure; performing operations without configuring or receiving SOR-CMCI; ensuring that no Tsor-cm timer is running; stopping the execution of the SOR procedure; and no longer executing the SOR procedure and / or the SOR-CMCI procedure.

[0074] Example 2

[0075] This embodiment mainly describes the situation where the terminal (UE) switches into the HPLMN, which corresponds to the first UPLMN in the previous implementation, such as... Figure 3 As shown, this embodiment includes the following steps.

[0076] 101: Same as Example 1.

[0077] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation). For example, when HANDOVER enters VPLMN2, the UE identifies that VPLMN2 is HPLMN or EHPLMN.

[0078] Optionally, the "UE enters VPLMN2" includes at least one of the following: 1) the UE completes a handover in VPLMN2; 2) the UE camps in VPLMN2; 3) the UE initiates registration in VPLMN2; 4) the UE receives a registration success message in VPLMN2; 5) the UE sends a registration completion message in VPLMN2.

[0079] 103: Same as Example 1

[0080] Example 3

[0081] This embodiment mainly describes the situation where the terminal (UE) switches to the highest priority network in the OPLMN. The highest priority network in the OPLMN corresponds to the first UPLMN in the previous implementation, such as... Figure 3 As shown, this embodiment includes the following steps.

[0082] 101: Same as Example 1.

[0083] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation). For example, when HANDOVER enters VPLMN2, the UE recognizes that VPLMN2 is the highest priority network in OPLMN.

[0084] Optionally, the "UE enters VPLMN2" includes at least one of the following: 1) the UE completes a handover in VPLMN2; 2) the UE camps in VPLMN2; 3) the UE initiates registration in VPLMN2; 4) the UE receives a registration success message in VPLMN2; 5) the UE sends a registration completion message in VPLMN2.

[0085] 103: Same as Example 1.

[0086] Example 4

[0087] This embodiment mainly describes the case where a terminal (UE) switches to a non-highest priority network in an OPLMN. This non-highest priority network in the OPLMN corresponds to the first UPLMN in the previous implementation, such as... Figure 3 As shown, this embodiment includes the following steps.

[0088] 101: Same as Example 1.

[0089] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation). For example, when HANDOVER enters VPLMN2, the UE recognizes that VPLMN2 is a non-highest priority network in OPLMN.

[0090] Optionally, the "UE enters VPLMN2" includes at least one of the following: 1) the UE completes a handover in VPLMN2; 2) the UE camps in VPLMN2; 3) the UE initiates registration in VPLMN2; 4) the UE receives a registration success message in VPLMN2; 5) the UE sends a registration completion message in VPLMN2.

[0091] 103: In this embodiment, the terminal can determine whether to perform a network change operation or not based on VPLMN2.

[0092] The failure to perform network change operations mentioned here may include at least one of the following: stopping the Tsor-cm timer; not entering the idle state; not performing the deregistration procedure; performing operations without configuring or receiving SOR-CMCI; ensuring that no Tsor-cm timer is running; stopping the execution of the SOR procedure; and no longer executing the SOR procedure and / or the SOR-CMCI procedure.

[0093] Example 5

[0094] This embodiment mainly describes the situation where the first PLMN entered by the terminal (UE) during handover is not EHPLMN, HPLMN, UPLMN, or OPLMN, such as... Figure 3 As shown, this embodiment includes the following steps.

[0095] 101: Same as Example 1.

[0096] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation). For example, when HANDOVER enters VPLMN2, the UE recognizes that VPLMN2 is not EHPLMN, HPLMN, UPLMN or OPLMN.

[0097] Optionally, the "UE enters VPLMN2" includes at least one of the following: 1) the UE completes a handover in VPLMN2; 2) the UE camps in VPLMN2; 3) the UE initiates registration in VPLMN2; 4) the UE receives a registration success message in VPLMN2; 5) the UE sends a registration completion message in VPLMN2.

[0098] 103: In this embodiment, the terminal can determine whether to perform a network change operation or not based on VPLMN2.

[0099] The failure to perform network change operations mentioned here may include at least one of the following: stopping the Tsor-cm timer; not entering the idle state; not performing the deregistration procedure; performing operations without configuring or receiving SOR-CMCI; ensuring that no Tsor-cm timer is running; stopping the execution of the SOR procedure; and no longer executing the SOR procedure and / or the SOR-CMCI procedure.

[0100] Example 6

[0101] In this embodiment, the message received by the UE carries indication information, which instructs the terminal not to perform network change operations, for example, instructing the terminal to stop the SOR procedure and / or the SOR-CMCI procedure. This embodiment includes the following steps:

[0102] 101: Same as Example 1.

[0103] 102: The UE is not currently in idle state, nor in 5GMM-CONNECTED mode with RRC inactive indication. The UE enters VPLMN2 (corresponding to the first UPLMN in the previous implementation).

[0104] 103: VPLMN2 sends indication information to the UE, and the UE receives the indication information.

[0105] This indication information can be generated by the HPLMN; for example, if the HPLMN recognizes that the UE is in VPLMN2 and no longer needs to perform the SOR procedure, it sends an indication information to VPLMN2 to request VPLMN2 to send it to the UE.

[0106] This instruction tells the UE to stop the SOR process and / or the SOR-CMCI process, for example, to stop the Tsor-cm timer.

[0107] This instruction can be transmitted in a Non-Access Stratum (NAS) message or an Access Stratum (AS) message.

[0108] The aforementioned NAS messages may include at least one of the following: Registration Acceptance message; DL NAS TRANSPORT message; Registration Rejection message; Deregistration Acceptment message; Deregistration Request message; Deregistration Acceptment message; Service Rejection message; Service Acceptment message; Configuration Update Command message; Authentication Request message; Authentication Response message; Authentication Rejection message; Authentication Result message; Identity Request message; Security Mode Command message; 5GMM Status message; Notification message.

[0109] The AS messages mentioned above include at least one of the following: RRC reconfiguration message; RRC establishment message.

[0110] 104: The UE determines that it will not perform network change operations based on the indication information.

[0111] Optionally, the indication information mentioned in this embodiment may be included in the SOR transparent container. For example, when the bit value is 0, the terminal is instructed to stop executing the SOR and / or SOR-CMCI process; when the bit value is 1, the terminal is instructed to execute the SOR and / or SOR-CMCI process.

[0112] Example 7

[0113] In this embodiment, the terminal sends the PLMN list information stored by the terminal to the network-side device. The PLMN list is used by the network-side device to determine the indication information. This embodiment may include the following steps:

[0114] 101: The terminal sends the PLMN list information stored by the terminal to the network-side device (such as VPLMN, or UDM or SOR-AF of HPLMN). The PLMN list information can be User Controlled PLMN Selector with Access Technology list.

[0115] 102: The network-side device uses the PLMN list information stored in the terminal to determine the indication information. For example, the indication information determined by the network-side device may be to instruct the terminal to perform a network change operation; or to instruct the terminal not to perform a network change operation.

[0116] The above combination Figure 2 A network modification method according to embodiments of this application is described in detail below. Figure 4 A network modification method according to embodiments of this application is described in detail. It will be understood that the description of the network-side device is consistent with... Figure 2 The terminal-side descriptions in the methods shown are the same or corresponding; to avoid repetition, relevant descriptions are omitted as appropriate.

[0117] Figure 4 This is a schematic diagram illustrating the implementation flow of a method for implementing sensing services according to an embodiment of this application, which can be applied to network-side devices. For example... Figure 4 As shown, the method 400 includes the following steps.

[0118] S402: The network-side device sends an instruction message, which is used to instruct the terminal not to perform a network change operation.

[0119] The network change method provided in this application embodiment allows the network-side device to send indication information to instruct the terminal not to perform a network change operation, thus solving the problem that communication performance is affected because the terminal cannot determine whether to perform a network change operation, and facilitating the improvement of communication performance.

[0120] Optionally, as an embodiment, the network-side device sending indication information includes: the network-side device sending indication information when it determines that the terminal has undergone a network change.

[0121] Optionally, as an embodiment, the instruction information is used to instruct the terminal to stop executing the SOR process and / or the SOR-CMCI process.

[0122] Optionally, as an embodiment, before the network-side device sends the indication information, the method further includes: the network-side device obtaining the PLMN list stored by the terminal, and determining the indication information based on the PLMN list.

[0123] Optionally, as an embodiment, the PLMN list stored in the terminal is carried by at least one of the following: registration request message; registration completion message; deregistration request message; deregistration acceptance message; service request message; control plane service request message; configuration update completion message; authentication response message; authentication failure message; identity response message; security mode completion message; security mode rejection message; 5GMM status message; notification response message; uplink non-access stratum transmission message.

[0124] It should be noted that the network modification method provided in this application embodiment can be executed by a network modification device, or by a control module within the network modification device for executing the network modification method. This application embodiment uses the execution of the network modification method by a network modification device as an example to illustrate the network modification device provided in this application embodiment.

[0125] Figure 5 This is a schematic diagram of a network modification device according to an embodiment of this application. This device may correspond to a terminal in other embodiments. For example... Figure 5 As shown, the device network change includes the following modules.

[0126] The processing module 502 can be used to determine whether to perform a network change operation based on the first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

[0127] Optionally, the device may also include a communication module that can be used to receive instruction information.

[0128] The network change device provided in this application embodiment allows the processing module to determine whether to perform a network change operation based on the PLMN or indication information. This solves the problem of communication performance being affected by the terminal's inability to determine whether to perform a network change operation, and facilitates improved communication performance.

[0129] Optionally, as an embodiment, the processing module 502 is configured to: 1) not perform a network change operation in response to the first PLMN being an EHPLMN or HPLMMN; 2) not perform a network change operation in response to the first PLMN being a PLMN in an UPLMN; 3) not perform a network change operation in response to the first PLMN being the highest priority PLMN in an OPLMN; 4) not perform a network change operation or perform a network change operation in response to the first PLMN being a non-highest priority PLMN in an OPLMN.

[0130] Optionally, as an embodiment, the processing module 502 is further configured to determine that the first PLMN is a PLMN in an UPLMN when it is determined that the first PLMN belongs to a first list; wherein the first list includes a list of user-controlled PLMN selectors using access technologies; or, the processing module is further configured to determine that the first PLMN is a PLMN in an OPLMN when it is determined that the first PLMN belongs to a second list; wherein the second list includes a list of operator-controlled PLMN selectors using access technologies.

[0131] Optionally, as an embodiment, the processing module 502 is further configured to either not perform a network change operation or perform a network change operation in response to the first PLMN not being an EHPLMN, HPLMN, UPLMN, or OPLMN.

[0132] Optionally, as an embodiment, the device not performing network change operations includes at least one of the following: 1) stopping the timer while it is running, wherein the timer is used by the device to perform network change operations if the timer expires; 2) stopping the SOR process while the device is performing a SOR process; 3) performing operations in the absence of configuration or receipt of a SOR while the device is performing a SOR process; 4) stopping the SOR-CMCI process while the device is performing a SOR-CMCI process; 5) performing operations in the absence of configuration or receipt of a SOR-CMCI while the device is performing a SOR-CMCI process; 6) not entering an idle state; 7) not performing a deregistration procedure; 8) allowing the transmission of 5GSM messages.

[0133] Optionally, as an example, the timer is a Tsor-cm timer.

[0134] Optionally, as an embodiment, the first PLMN includes at least one of the following: 1) a PLMN registered by the device; 2) a PLMN selected by the device; 3) a PLMN currently used by the device; 4) a target PLMN in a switching scenario; 5) a target PLMN in a redirection scenario.

[0135] Optionally, as an embodiment, the device further includes a switching module for switching from the second PLMN to the first PLMN.

[0136] Optionally, as an embodiment, the apparatus further includes a receiving module for receiving SOR information; the processing module 502 is further configured to perform an SOR process and / or an SOR-CMCI process based on the SOR message.

[0137] Alternatively, as an embodiment, the indication information is sent by the HPLMN of the device.

[0138] Alternatively, as an embodiment, the indication information is represented by at least one bit or byte.

[0139] Optionally, as an embodiment, the device further includes a sending module for sending a PLMN list stored by the device to a UDM network element or a SOR-AF network element, the PLMN list being used to determine the indication information.

[0140] Optionally, as an embodiment, the PLMN list stored by the device is carried by at least one of the following: registration request message; registration completion message; deregistration request message; deregistration acceptance message; service request message; control plane service request message; configuration update completion message; authentication response message; authentication failure message; identity response message; security mode completion message; security mode rejection message; 5GMM status message; notification response message; uplink non-access stratum transmission message.

[0141] The apparatus 500 according to the embodiments of this application can refer to the flow of the method 200 corresponding to the embodiments of this application. Furthermore, each unit / module in the apparatus 500 and the other operations and / or functions described above are respectively for implementing the corresponding flow in the method 200 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described in detail here.

[0142] Figure 6 This is a schematic diagram of a network modification device according to an embodiment of this application. This device may correspond to a network-side device in other embodiments. Figure 6 As shown, the device 600 includes the following modules.

[0143] The sending module 602 can be used to send indication information, which is used to instruct the terminal not to perform network change operations.

[0144] Optionally, the device may further include a processing module that can be used to determine whether to send an instruction message.

[0145] The network change device provided in this application embodiment can send indication information to instruct the terminal not to perform a network change operation, which solves the problem that communication performance is affected because the terminal cannot determine whether to perform a network change operation, and facilitates the improvement of communication performance.

[0146] Optionally, as an embodiment, the sending module 602 is configured to send indication information when it is determined that the terminal has undergone a network change.

[0147] Optionally, as an embodiment, the instruction information is used to instruct the terminal to stop executing the SOR process and / or the SOR-CMCI process.

[0148] Optionally, as an embodiment, the device further includes an acquisition module for acquiring a list of PLMNs stored in the terminal and determining the indication information based on the list of PLMNs.

[0149] Optionally, as an embodiment, the PLMN list stored in the terminal is carried by at least one of the following: registration request message; registration completion message; deregistration request message; deregistration acceptance message; service request message; control plane service request message; configuration update completion message; authentication response message; authentication failure message; identity response message; security mode completion message; security mode rejection message; 5GMM status message; notification response message; uplink non-access stratum transmission message.

[0150] The apparatus 600 according to the embodiments of this application can refer to the flow of the method 400 corresponding to the embodiments of this application. Furthermore, each unit / module in the apparatus 600 and the other operations and / or functions described above are respectively for implementing the corresponding flow in the method 400 and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be described in detail here.

[0151] The network modification device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0152] The network modification device provided in this application embodiment can achieve... Figures 2 to 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0153] Optional, such as Figure 7 As shown, this application embodiment also provides a communication device 700, including a processor 701, a memory 702, and a program or instructions stored in the memory 702 and executable on the processor 701. For example, when the communication device 700 is a terminal, the program or instructions executed by the processor 701 implement the various processes of the above-described network change method embodiment and achieve the same technical effect; when the communication device 700 is a network-side device, the program or instructions executed by the processor 701 implement the various processes of the above-described network change method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0154] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to determine whether to perform a network change operation based on a first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 8 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0155] The terminal 800 includes, but is not limited to, at least some of the following components: radio frequency unit 801, network module 802, audio output unit 803, input unit 804, sensor 805, display unit 806, user input unit 807, interface unit 808, memory 809, and processor 810.

[0156] Those skilled in the art will understand that the terminal 800 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 810 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 8 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0157] It should be understood that, in this embodiment, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042. The GPU 8041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 806 may include a display panel 8061, which 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 a touch panel 8071 and other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0158] In this embodiment, the radio frequency unit 801 receives downlink data from the network-side device and processes it for the processor 810; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0159] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 809 may include high-speed random access memory and non-transient memory, wherein the non-transient memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-transient solid-state storage device.

[0160] Processor 810 may include one or more processing units; optionally, processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 810.

[0161] The processor 810 can be used to determine whether to perform a network change operation based on a first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

[0162] In this embodiment, the terminal can determine whether to perform a network change operation based on the PLMN or indication information, which solves the problem that communication performance is affected because the terminal cannot determine whether to perform a network change operation, and facilitates the improvement of communication performance.

[0163] The terminal 800 provided in this application embodiment can also implement the various processes of the above network change method embodiment and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0164] This application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to send indication information, and the indication information is used to instruct the terminal not to perform network change operations.

[0165] This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0166] Specifically, embodiments of this application also provide a network-side device. For example... Figure 9 As shown, the network-side device 900 includes an antenna 91, a radio frequency (RF) device 92, and a baseband device 93. The antenna 91 is connected to the RF device 92. In the uplink direction, the RF device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be transmitted and sends it to the RF device 92. The RF device 92 processes the received information and then transmits it through the antenna 91.

[0167] The aforementioned frequency band processing device can be located in the baseband device 93. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 93, which includes a processor 94 and a memory 95.

[0168] Baseband device 93 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 9 As shown, one of the chips, for example, is a processor 94, which is connected to a memory 95 to call the program in the memory 95 and execute the network-side device operations shown in the above method embodiment.

[0169] The baseband device 93 may also include a network interface 96 for exchanging information with the radio frequency device 92, such as a Common Public Radio Interface (CPRI).

[0170] Specifically, the network-side device in this application embodiment further includes: instructions or programs stored in memory 95 and executable on processor 94, wherein processor 94 calls the instructions or programs in memory 95 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0171] This application also provides a readable storage medium, which can be volatile or non-volatile, and can be transient or non-transient. The readable storage medium stores a program or instructions, which, when executed by a processor, implement the various processes of the above-described network modification method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0172] The processor may be the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0173] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above network modification method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0174] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0175] This application also provides a computer program product, which is stored in a non-transient storage medium. The computer program product is executed by at least one processor to implement the various processes of the above-described network change method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0176] This application also provides a communication device configured to execute the various processes of the above-described network modification method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0177] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0178] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in the various embodiments of this application.

[0179] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A network modification method, characterized in that, include: The terminal receives roaming guidance SOR information; The terminal executes the SOR process and / or the roaming guidance connection mode control information SOR-CMCI process according to the SOR message; When the terminal performs the SOR procedure and / or the SOR-CMCI procedure, the terminal switches from the second public land mobile network (PLMN) to the first PLMN. When the terminal executes the SOR procedure and / or the SOR-CMCI procedure, the terminal determines whether to perform a network change operation based on the first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

2. The method according to claim 1, characterized in that, The terminal determines whether to perform a network change operation based on the first PLMN, including at least one of the following: In response to the first PLMN being an Equivalent Home Public Land Mobile Network (EHPLMN) or a Home Public Land Mobile Network (HPLMN), the terminal does not perform a network change operation. In response to the first PLMN being a PLMN in a User Controlled Public Land Mobile Network (UPLMN), the terminal does not perform a network change operation; In response to the fact that the first PLMN is the highest priority PLMN in the operator-controlled public land mobile network OPLMN, the terminal does not perform a network change operation; In response to the first PLMN being a non-highest priority PLMN in the OPLMN, the terminal either does not perform a network change operation or performs a network change operation.

3. The method according to claim 2, characterized in that, Before the terminal determines whether to perform a network change operation based on the first PLMN, the method further includes: When the terminal determines that the first PLMN belongs to a first list, it determines that the first PLMN is a PLMN in a UPLMN; wherein, the first list includes a list of user-controlled PLMN selectors using access technology; or, When the terminal determines that the first PLMN belongs to the second list, it determines that the first PLMN is a PLMN in the OPLMN; wherein, the second list includes a list of operator-controlled PLMN selectors using access technology.

4. The method according to claim 1, characterized in that, The terminal determines whether to perform a network change operation based on the first PLMN, including: In response to the first PLMN not being EHPLMN, HPLMN, UPLMN, or OPLMN, the terminal either does not perform a network change operation or performs a network change operation.

5. The method according to any one of claims 1 to 4, characterized in that, The terminal not performing network change operations includes at least one of the following: While the timer is running, the terminal stops the timer, wherein the timer is used by the terminal to perform a network change operation if the timer expires; If the terminal is performing a roaming bootstrapping (SOR) process, the terminal stops performing the SOR process. While the terminal is performing a SOR procedure, the terminal performs operations that would not be configured or received in the event of a SOR. If the terminal is executing the Roaming Guided Connection Mode Control Information (SOR-CMCI) process, the terminal stops the SOR-CMCI process. While the terminal is performing the SOR-CMCI procedure, the terminal performs operations that would not be configured or received in the event of an SOR-CMCI. The terminal does not enter an idle state; The terminal does not execute the logout procedure; The terminal allows the transmission of 5GSM messages for fifth-generation session management.

6. The method according to claim 5, characterized in that, The timer is a Tsor-cm timer.

7. The method according to any one of claims 1 to 4, characterized in that, The first PLMN includes at least one of the following: The PLMN registered by the terminal; The PLMN selected by the terminal; The terminal's current PLMN; Switch the target PLMN in the scene; The target PLMN in a redirection scenario.

8. The method according to claim 1, characterized in that, The instruction information is sent by the terminal's HPLMN.

9. The method according to claim 8, characterized in that, The indication information is represented by at least one bit or byte.

10. The method according to claim 1, characterized in that, Before the terminal obtains the indication information, the method further includes: The terminal sends the PLMN list stored in the terminal to the Unified Data Management (UDM) network element or the Roaming Guidance Application Function (SOR-AF) network element, and the PLMN list is used to determine the indication information.

11. The method according to claim 10, characterized in that, The PLMN list stored in the terminal is carried by at least one of the following: Registration request message; Registration complete message; Deregistration request message; Deregistration accepted message; Service request message; Control plane service request message; Configuration update complete message; Authentication response message; Authentication failed message; Identity response message; Security mode complete message; Security mode reject message; 5GMM status message; Notification response message; Uplink non-access stratum transmission message.

12. A network modification method, characterized in that, include: The network-side device sends an instruction message, which is used to instruct the terminal to stop executing the SOR process and / or the SOR-CMCI process; The network-side device sends indication information, including: When the network-side device determines that the terminal has switched from the second PLMN to the first PLMN and that the SOR process and / or SOR-CMCI process currently being executed by the terminal does not need to continue, it sends an indication message.

13. The method according to claim 12, characterized in that, Before the network-side device sends the indication information, the method further includes: The network-side device obtains the PLMN list stored in the terminal and determines the indication information based on the PLMN list.

14. The method according to claim 13, characterized in that, The PLMN list stored in the terminal is carried by at least one of the following: Registration request message; Registration complete message; Deregistration request message; Deregistration accepted message; Service request message; Control plane service request message; Configuration update complete message; Authentication response message; Authentication failed message; Identity response message; Security mode complete message; Security mode reject message; 5GMM status message; Notification response message; Uplink non-access stratum transmission message.

15. A network modification device, characterized in that, include: The receiving module is used to receive SOR information; The processing module is used to execute the SOR procedure and / or the SOR-CMCI procedure according to the SOR message; A switching module is used to switch from the second PLMN to the first PLMN when performing the SOR process and / or the SOR-CMCI process. The processing module is further configured to, when executing the SOR process and / or the SOR-CMCI process, determine whether to perform a network change operation based on the first PLMN or indication information, wherein the indication information is used to indicate whether to perform the network change operation.

16. The apparatus according to claim 15, characterized in that, The module being processed is used for at least one of the following: If the first PLMN is an EHPLMN or HPLMN, no network change operation is performed. If the first PLMN is a PLMN in a UPLMN, no network change operation is performed; In response that the first PLMN is the highest priority PLMN in the OPLMN, no network change operation is performed; If the first PLMN is a non-highest priority PLMN in the OPLMN, either no network change operation is performed or a network change operation is performed.

17. The apparatus according to claim 16, characterized in that, The processing module is further configured to, if it is determined that the first PLMN belongs to a first list, determine that the first PLMN is a PLMN in a UPLMN; wherein the first list includes a list of user-controlled PLMN selectors using access technology; or, The processing module is further configured to determine that the first PLMN is a PLMN in an OPLMN if it is determined that the first PLMN belongs to the second list; wherein the second list includes a list of operator-controlled PLMN selectors using access technology.

18. The apparatus according to claim 15, characterized in that, The processing module is used for: If the first PLMN is not EHPLMN, HPLMMN, UPLMN, or OPLMN, either no network change operation is performed or a network change operation is performed.

19. The apparatus according to any one of claims 15 to 18, characterized in that, The device does not perform network change operations in at least one of the following ways: While the timer is running, stop the timer, wherein the timer is used by the device to perform a network change operation if the timer expires; If the device is performing a SOR process, the device stops performing the SOR process. While the device is performing a SOR procedure, the device performs operations that would otherwise be performed without configuration or receiving a SOR. If the device is performing the SOR-CMCI process, the device stops the SOR-CMCI process; While the device is performing the SOR-CMCI process, the device performs operations that would not be configured or received in the event of an SOR-CMCI. The device does not enter an idle state; The device does not perform a deregistration procedure; The device allows the transmission of 5GSM messages.

20. The apparatus according to claim 19, characterized in that, The timer is a Tsor-cm timer.

21. The apparatus according to any one of claims 15 to 18, characterized in that, The first PLMN includes at least one of the following: The PLMN registered by the device; The device selects the PLMN; The current PLMN of the device; Switch the target PLMN in the scene; The target PLMN in a redirection scenario.

22. The apparatus according to claim 15, characterized in that, The instruction information is sent by the HPLMN of the device.

23. The apparatus according to claim 15, characterized in that, The device further includes a sending module for sending a PLMN list stored in the device to a UDM network element or a SOR-AF network element, the PLMN list being used to determine the indication information.

24. A network modification device, characterized in that, include: The sending module is used to send indication information, which is used to instruct the terminal to stop executing the SOR process and / or the SOR-CMCI process; The sending module is configured to send indication information when it is determined that the terminal has switched from the second PLMN to the first PLMN and the SOR process and / or SOR-CMCI process currently being executed by the terminal does not need to continue.

25. The apparatus according to claim 24, characterized in that, The device further includes an acquisition module for acquiring a list of PLMNs stored in the terminal and determining the indication information based on the list of PLMNs.

26. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the network modification method as described in any one of claims 1 to 11.

27. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the network modification method as described in any one of claims 12 to 14.

28. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the network modification method as described in any one of claims 1 to 14.

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