CN115022866A - Information processing method, device, terminal and network side equipment - Google Patents

Abstract

The application discloses an information processing method, an information processing device, a terminal and network side equipment, and belongs to the technical field of wireless communication. The information processing method is applied to the terminal and comprises the following steps: receiving a modification instruction for modifying the DNS configuration of the terminal; modifying the DNS configuration according to the modification instruction; transmitting first indication information, wherein the first indication information indicates that the DNS configuration of the terminal is modified.

Description

Information processing method, device, terminal and network side equipment

technical field

The present application belongs to the technical field of wireless communication, and specifically relates to an information processing method, apparatus, terminal and network side equipment.

Background technique

In the related art, the core network device may configure a domain name system (Domain Name System, DNS) configuration information sent by the terminal, and configure a DNS server that matches the current state for the terminal. For example, the Session Management Function (SMF) can configure the terminal with the IP address of the Local DNS (L-DNS) server (in the Uplink Classifier, L-DNS) through the enhanced protocol configuration option (ePCO) process. UL CL) has been inserted) or the IP address of the Edge Application Server Discovery Function (EASDF) (the UL CL has not been inserted).

However, in a specific application, the DNS configuration of the terminal can be modified, for example, an application program (APP) on the terminal modifies the DNS configuration of the terminal or the user manually modifies the DNS configuration of the terminal. For example, overwriting the EASDF IP address or the L-DNS IP address in the DNS configuration and replacing it with the IP address of another third-party DNS server will invalidate the DNS configuration selected by the core network device for the terminal, but the core network does not know it. Therefore, the DNS configuration of the terminal cannot be revised in time, which may cause the DNS configuration optimized by the core network for the terminal to be overwritten, and the DNS query request sent by the terminal may be sent to the DNS server selected by other non-core network devices. The server may not be under the management of the operator, therefore, its security cannot be guaranteed.

SUMMARY OF THE INVENTION

The embodiments of the present application provide an information processing method, apparatus, terminal, and network side device, which can solve the problem that a DNS query request is sent to a DNS server selected by a non-core network device due to the modification of the DNS configuration of the terminal.

In a first aspect, an information processing method is provided, applied to a terminal, the method includes: receiving a modification instruction for modifying the DNS configuration of the terminal; modifying the DNS configuration according to the modification instruction; sending a first instruction information, wherein the first indication information indicates that the DNS configuration of the terminal is modified.

In a second aspect, an information processing method is provided, applied to a terminal, the method includes: receiving second DNS configuration information; updating the DNS configuration of the terminal according to the second DNS configuration information; setting the DNS The configuration cannot be modified and/or set the DNS configuration to the highest priority.

In a third aspect, an information processing method is provided, applied to a first network device, the method includes: acquiring first information, wherein the first information includes: an address of a first target server; receiving a DNS query from a terminal request, wherein the target address of the DNS query request is the address of the second target server; when the second target server is different from the first target server, the target address of the DNS query request is set to The address of the first target server; sending the set DNS query request; wherein, the first network device can parse out whether the data packet from the terminal contains the DNS query request.

In a fourth aspect, an information processing method is provided, applied to a second network device, the method includes: acquiring address information of a third target server matched with a terminal; and performing the following according to the address information of the third target server At least one operation: generate the DNS configuration information of the terminal and send it to the terminal; generate an external packet header and send it to the first network device; send the address information of the third target server to the first network equipment; generating a DNS configuration update cycle of the terminal.

In a fifth aspect, an information processing device is provided, comprising: a first receiving module for receiving a modification instruction for modifying a DNS configuration of a terminal; a first configuration module for modifying the DNS configuration according to the modification instruction ; a first sending module, configured to send first indication information, wherein the first indication information indicates that the DNS configuration of the terminal is modified.

In a sixth aspect, an information processing apparatus is provided, the apparatus comprising: a second receiving module configured to receive second DNS configuration information; a second configuration module configured to, according to the second DNS configuration information, The DNS configuration of the terminal is updated; the first setting module is used for setting the DNS configuration to be unmodifiable and/or setting the DNS configuration to the highest priority.

In a seventh aspect, an information processing apparatus is provided, the apparatus includes: a first obtaining module, configured to obtain first information, wherein the first information includes: an address of a first target server; a third receiving module, For receiving the DNS query request of the terminal, wherein the target address of the DNS query request is the address of the second target server; the second setting module is used for when the second target server is different from the first target server Under the situation, the target address of the DNS query request is set to the address of the first target server; the second sending module is used to send the set DNS query request; wherein, the information processing device can parse out the Whether the data packet of the terminal contains a DNS query request.

In an eighth aspect, an information processing device is provided, the device comprising: a second acquisition module for acquiring address information of a third target server matched with a terminal; an operation module for obtaining address information of the third target server according to the address information of the third target server , perform at least one of the following operations: generate the DNS configuration information of the terminal and send it to the terminal; generate an external header and send it to the first network device; send the address information of the third target server to the A first network device; generating a DNS configuration update period of the terminal.

In a ninth aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor Implement the steps of the method as described in the first aspect, or implement the steps of the method as described in the second aspect.

A tenth aspect provides a network-side device, the network-side device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the When executed by the processor, the steps of the method as described in the third aspect or the steps of the method as described in the fourth aspect are realized.

In an eleventh aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented, or the The steps of the method according to the second aspect, or the steps of implementing the method according to the third aspect, or the steps of implementing the method according to the fourth aspect.

A twelfth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a terminal program or instruction, and the implementation is as described in the first aspect method, or the steps of implementing the method as described in the second aspect, the processor is used to run the network side device program or instruction, implement the method as described in the third aspect, or implement the method as described in the fourth aspect. step.

A thirteenth aspect provides a computer program product comprising a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When executed by the processor, the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect are realized. steps of the method described.

In the embodiment of the present application, after receiving the modification instruction to modify the DNS configuration, the terminal sends first indication information, indicating that the DNS configuration of the terminal is modified, so that the device that receives the first indication information can re-send the DNS configuration , and modify the DNS configuration of the terminal to ensure that the DNS query request of the terminal is sent to the DNS server designated by the core network. Alternatively, after receiving the DNS configuration information and modifying the DNS configuration by using the DNS configuration information, the terminal may also set the DNS configuration to be unmodifiable, or the terminal may also set the DNS configuration to the highest priority, so as to avoid the DNS configuration of the terminal The query request is sent to the DNS server specified by the non-core network. Alternatively, the first network device may also redirect the DNS query request of the terminal when receiving the DNS query request of the terminal, and redirect the DNS query request of the terminal to a DNS server designated by the core network, so as to ensure that the DNS query request of the terminal is processed by the DNS query request of the terminal. Sent to the DNS server specified by the core network.

Description of drawings

FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied;

FIG. 2 shows a schematic flowchart of an information processing method provided by an embodiment of the present application;

FIG. 3 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 4 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 5 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 6 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 7 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 8 shows another schematic flowchart of an information processing method provided by an embodiment of the present application;

FIG. 9 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 10 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 11 shows another schematic flowchart of the information processing method provided by the embodiment of the present application;

FIG. 12 shows a schematic structural diagram of an information processing apparatus provided by an embodiment of the present application;

FIG. 13 shows another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application;

FIG. 14 shows another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application;

FIG. 15 shows another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application;

FIG. 16 shows a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 17 shows a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present application;

FIG. 18 shows a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code division 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 (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but these techniques can also be applied to applications other than NR system applications, such as 6th ^Generation , 6G) communication system.

FIG. 1 shows a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, earphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network device, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmission Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of this application, only the NR system is used. The base station in the example is taken as an example, but the specific type of the base station is not limited. The core network equipment may include SMF, User Plane Function (UPF), Protocol Data Unit (Protocol Data Unit, PDU), Session Anchor (PDU Session Anchor, PSA), and UL CL.

The information processing solutions provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

FIG. 2 shows a schematic flowchart of an information processing method in an embodiment of the present application, and the method 200 may be executed by a terminal. In other words, the method may be performed by software or hardware installed on the terminal. As shown in Figure 2, the method may include the following steps.

S210, a modification instruction for modifying the DNS configuration of the terminal is received.

In a specific application, the modification instruction may be an external input instruction, for example, a modification instruction input by a user through a keyboard, a touch screen, or the like of the terminal. Alternatively, the modification instruction may also be a modification instruction sent by an application program on the terminal.

S212, modify the DNS configuration according to the modification instruction.

The DNS configuration of the terminal may include at least one of the following:

(1) Address information of the central DNS server. For example, the IP address of the central DNS server and/or the fully qualified domain name (FQDN) of the central DNS server.

(2) Address information of the Edge Application Server Discovery Function (EASDF). For example, EASDF's IP address and/or EASDF's FQDN. The EASDF is a core network element for processing a DNS query request sent by a terminal.

(3) Address information of the local DNS (Local DNS, L-DNS) server. For example, the IP address of the L-DNS server and/or the FQDN of the L-DNS server.

In a specific application, the modification instruction may modify the address of the DNS server (for example, the central DNS server, EASDF, or L-DNS server) in the DNS configuration of the terminal, and modify the address of the DNS server in the DNS configuration to another third party The address of the provided DNS server.

S214. Send first indication information, where the first indication information indicates that the DNS configuration of the terminal is modified.

After receiving the modification instruction to modify the DNS configuration, the terminal sends first indication information, indicating that the DNS configuration of the terminal is modified, so that the device that receives the first indication information can re-send the DNS configuration to modify the DNS configuration of the terminal. The DNS configuration specified for the core network device to ensure that the terminal's DNS query request is sent to the DNS server specified by the core network.

In a possible implementation manner, after S214, the method may further include: receiving first DNS configuration information; and modifying the DNS configuration according to the first DNS configuration information. The first DNS configuration information is DNS configuration information configured by the core network device for the terminal. Through this possible implementation, after the DNS configuration of the terminal is modified by the user or the APP, the DNS configuration of the terminal can be modified to the DNS configuration specified by the core network device, so as to ensure that the DNS query request of the terminal is sent to the specified DNS configuration of the core network. DNS server.

The first DNS configuration information may include at least one of the following: address information of the central DNS server; address information of the EASDF; address information of the local DNS server.

In a possible implementation manner, the terminal may send the first indication information to the core network device. After receiving the first indication information, the core network device sends the first DNS configuration information to the terminal, and the terminal receives the first DNS configuration information sent by the core network device. the first DNS configuration information. Through this possible implementation, when the DNS configuration of the terminal is modified, the terminal can send the first indication information to the core network device, and the core network device can send the first DNS configuration information to the terminal after receiving the first indication information, Modify the DNS configuration of the terminal.

In the above possible implementation manner, the DNS configuration in the first DNS configuration information may be the same as or different from the DNS configuration of the terminal before modification, which is not specifically limited in this embodiment of the present application.

Optionally, the terminal may send the first indication information to the core network device when it is in a connected state. The connected state includes but is not limited to at least one of the following: Radio Resource Control (RRC) connected state (RRC-Connected); Registered Management (RM) connected state (RM-REGISTERED); connected Management (Connected Management, CM) connected state (CM-CONNECTED).

Optionally, the first indication information may be a non-access stratum (NonAccessStratum, NAS) message indication. Wherein, the NAS message indication includes but is not limited to at least one of the following:

(1) Registration Request (RegistrationRequest) message;

(2) Registration Complete (Registration Complete) message;

(3) PDU Session Establishment Request message (PDU Session Establishment Request, Nsmf_PDUSession_Create Request);

(4) PDU Session Establishment Accept message (PDU Session Establishment Accept, Nsmf_PDUSession_Create Response);

(5) PDU Session Modification Request message (PDU Session Modification Request, Nsmf_PDUSession_Update Request);

(6) PDU session modification acceptance message (PDU Session Modification Ack, Nsmf_PDUSession_Update Response);

(7) PDU Session Release Request message (PDU Session Release Request, Nsmf_PDUSession_Release Request);

(8) PDU Session Release Accept message (PDU Session Release Accept, Nsmf_PDUSession_Release Response).

In another possible implementation manner, in S214, the operating system (OS) of the terminal may also send the first indication information to the chip module (Module) of the terminal, and then receive the first DNS sent by the chip module Configuration information, wherein the first DNS configuration information is DNS configuration information received from the core network device before the DNS configuration is modified according to the modification instruction. That is to say, in this possible implementation manner, after receiving the DNS configuration information sent by the core network device, the chip module of the terminal sends the DNS configuration information to the operating system of the terminal, and saves the DNS configuration information, and the terminal The operating system that applies the DNS configuration. When the DNS configuration of the terminal is modified, the operating system of the terminal sends the first indication information to the chip module, and after receiving the first indication information, the chip module sends the saved DNS configuration information to the operating system, so that the DNS The configuration is modified to the original DNS configuration. Therefore, the DNS query request of the subsequent terminal can be prevented from being sent to other DNS servers.

Optionally, the above-mentioned first indication information may be a message indication between the terminal operating system and the chip module.

The above-mentioned information processing method 200 provided by the present application will be described below through specific embodiments.

FIG. 3 shows another flowchart of the information processing method in the embodiment of the present application. As shown in FIG. 3 , the method 300 may include the following steps:

S301, the DNS configuration of the UE is modified.

The DNS configuration of the UE may be modified manually by the user, or may be modified by the APP in the UE. For details, reference may be made to the descriptions of S210 and S212 in the foregoing method 200, which are not repeated here.

S302, the UE sends a NAS message indication to the 5G core network, where the indication is used to notify the 5G core network that the DNS configuration of the UE is modified.

Wherein, when the DNS configuration of the UE is modified, the UE is in a connected state and can send a NAS message indication to the 5G core network.

S303, the 5G core network triggers the ePCO process, and sends the correct DNS configuration to the UE.

For example, if the UL CL has been inserted, the 5G core network will send the address information of the L-DNS configured for the UE to the UE, or if the UL CL has not been inserted, the 5G core network will send the EASDF address information configured for the UE to the UE. The address information is sent to the UE.

Through the above method 300, when the DNS configuration of the UE is not modified according to the instructions of the core network, the core network can be notified. After receiving the notification, the core network sends the DNS configuration information to the UE, instructing the UE to modify the DNS configuration according to the DNS configuration information. , so as to ensure that the DNS query request of the UE is sent to the DNS server designated by the core network, that is, to ensure that the optimal DNS configuration made by the core network for the terminal will not be invalidated.

FIG. 4 shows another flowchart of the information processing method in the embodiment of the present application. As shown in FIG. 4 , the method 400 may include the following steps:

S401, the 5G core network sends the DNS configuration to the UE.

S402, the chip module of the UE receives the DNS configuration, saves the DNS configuration, and sends the DNS configuration to the operating system of the UE.

S403, the operating system of the UE applies the DNS configuration.

S404, the operating system of the UE modifies the DNS configuration according to the received modification instruction.

S405, the operating system of the UE sends indication information to the chip module, indicating that the DNS configuration of the UE is modified.

S406, after receiving the indication information, the chip module of the UE sends the saved DNS configuration to the operating system to replace the modified DNS configuration.

Through the above method 400, after receiving the modification instruction from the non-core network to modify the DNS configuration, the operating system of the UE notifies the chip module of the UE, and after receiving the notification, the chip module saves the DNS configuration sent by the core network. It is sent to the operating system to replace the modified DNS configuration, thereby ensuring that the DNS server in the UE's DNS configuration is the DNS server indicated by the core network, and ensuring that the optimal DNS configuration made by the core network for the terminal will not be invalidated.

FIG. 5 shows another schematic flowchart of an information processing method provided by an embodiment of the present application, and the method 500 may be executed by a terminal. In other words, the method may be performed by software or hardware installed on the terminal. As shown in Figure 5, the method may include the following steps.

S510: Receive second DNS configuration information.

Wherein, the second DNS configuration information may include at least one of the following: address information of the central DNS server, for example, the IP address of the central DNS server and/or the FQDN of the central DNS server; address information of the EASDF, for example, the IP address of the EASDF and/or the FQDN of the EASDF; address information of the local DNS server, for example, the IP address of the local DNS server and/or the FQDN of the local DNS server.

S512: Update the DNS configuration of the terminal according to the second DNS configuration information.

In S512, the DNS configuration of the terminal is set to the configuration corresponding to the second DNS configuration information, for example, the address of the DNS server is set to the address of the DNS server in the second DNS configuration information.

S514. Set the DNS configuration to be unmodifiable and/or set the DNS configuration to the highest priority.

In this embodiment of the present application, after the DNS configuration of the terminal is set according to the second DNS configuration information, the DNS configuration is set as unmodifiable, that is, the DNS configuration cannot be modified by the APP of the user or the terminal, or the DNS configuration cannot be edited .

For example, the terminal receives the second DNS configuration information from the core network device. Since the second DNS configuration information comes from the network side, in order to ensure that the network side can be used to optimize the selection of the DNS server, the second DNS configuration information is applied to the DNS server. After the configuration is updated, set the DNS configuration to be unmodifiable.

With the method provided by the embodiment of the present application, by setting the DNS configuration of the terminal to be unmodifiable, it is possible to prevent the DNS configuration of the terminal from being modified by the user or the APP of the terminal, so as to avoid invalidation of the preferred DNS configuration selected by the core network for the UE, It is ensured that the DNS query request is sent to the DNS server designated by the core network, and the DNS request sent by the UE is prevented from being sent to a third-party external DNS server to ensure security.

Alternatively, in this embodiment of the present application, after setting the DNS configuration of the terminal according to the second DNS configuration information, the priority of the DNS configuration may be set to the highest priority, and the UE may select the highest priority when sending a DNS query request The DNS configuration sends a DNS query request, that is, the target address of the DNS query request is set to the address of the DNS server in the DNS configuration with the highest priority. Through this method, it can be ensured that the DNS query request is sent to the DNS server designated by the core network, and the DNS request sent by the UE is prevented from being sent to a third-party external DNS server, thereby ensuring security.

In a possible implementation, the chip module of the terminal may receive the second DNS configuration information, send the second DNS configuration information to the operating system of the terminal, and send the second indication information to the operating system of the terminal, indicating that the DNS Configuration cannot be modified.

For example, after receiving the second DNS configuration information, the chip module determines that the configuration information is the DNS configured by the operator for the terminal, and therefore sends the second indication information to the operating system.

Alternatively, after sending the second DNS configuration information to the terminal, the core network device may send third indication information to the terminal, where the third indication information indicates that the second DNS configuration information cannot be modified. Optionally, the third indication information may be a NAS message indication.

For example, in the information processing method shown in FIG. 6 , in S601, the 5G core network sends the DNS configuration to the UE. Optionally, the 5GC may indicate by NAS, and the DNS configuration cannot be modified. A chip module (module) and an operating system (OS) of the terminal obtain the DNS configuration. In S602, the chip module of the UE determines that the DNS configuration is configured by the operator for the UE, and sends indication information to the UE OS to indicate to the UE that this DNS record cannot be modified.

FIG. 7 shows another schematic flowchart of an information processing method in an embodiment of the present application, and the method 700 may be executed by a first network device. In other words, the method may be performed by software or hardware installed on the first network device.

In this embodiment of the present application, the first network device may be a network element in the core network, and the first network device can parse out whether the data packet from the terminal contains a DNS query request, that is, the first network device has the ability to identify the data from the terminal Whether the package contains the capability for DNS query requests. The first network device routes the DNS query request to an intermediate node in the DNS server. For example, the first network device may be a UPF and/or a PSA.

As shown in Figure 7, the method may include the following steps.

S710: Acquire first information, where the first information includes: the address of the first target server.

For example, the second network device (eg, SMF) may, when selecting a DNS server for the terminal, send the selected DNS server to the first network device, and the first network device obtains the address of the DNS server (ie, the first target server) .

Optionally, the first information may include: DNS configuration information of the terminal and/or an external header, wherein the external header is generated according to the address of the first target server selected for the terminal. That is, after selecting the first target server for the terminal, the second network device may obtain the DNS configuration information and/or the external packet header of the terminal, and send the DNS configuration information and/or the external packet header of the terminal to the first target server. Network equipment.

In a specific application, since there may be multiple terminals in the network system, and the first target servers of different terminals may be different, the first network device may store the first information in association with the terminal identifier.

S712, a DNS query request from the terminal is received, wherein the target address of the DNS query request is the address of the second target server.

The first network device parses the DNS query request from the data packet sent by the terminal, and obtains the target address of the DNS query request, that is, the address of the second target server.

S714, in the case that the second target server is different from the first target server, set the target address of the DNS query request as the address of the first target server.

The first network device can obtain the address of the first target server associated with the terminal according to the identifier of the terminal sending the DNS query request, and judge whether the address of the first target server is the same as the target address of the DNS query request, so as to determine whether the address of the first target server is the same as that of the DNS query request. Whether the second target server is the same as the first target server, if not, it can be determined that the DNS configuration of the terminal has been modified, the DNS query request is redirected, and the target address of the DNS query request is set to the first target address. The address of a target server.

S716, send the set DNS query request.

The first network device sets the target address of the DNS query request to the address of the first target server, and sends the DNS query request, so that the DNS query request can be sent to the first target server.

In a possible implementation manner, in S714, the target address of the DNS query request may be replaced with the address of the first target server. Alternatively, a packet header may also be added outside the DNS query request, and the target address included in the packet header is the address of the first target server.

In a possible implementation manner, after S716, the first network device may also receive a query response to the DNS query request. Since the DNS query request is routed to the first target server, it is the first target server that sends the query response , so that the terminal does not perceive that the DNS query request has been redirected, the source address of the query response can be modified to the address of the first target server. In this possible implementation manner, after sending the modified DNS query request, the method may further include: receiving a query response to the DNS query request; setting the source address in the query response to is the address of the second target server; send the modified query response.

Corresponding to the above-mentioned setting of the target address of the DNS query request as the address of the first target server, optionally, setting the source address in the query response to the address of the second target server may include: setting the query response Replace the source address with the address of the second target server. Or, remove the outer packet header of the query response, wherein the source address included in the outer packet header is the address of the first target server. The specific implementation method to be adopted can be determined according to the received query response. If the received query response has the external header, the method of removing the external header of the query response is adopted. Otherwise, the query response is removed. The source address is replaced with the address of the second target server.

In a possible implementation manner, in order for the second network device to know that the DNS configuration of the terminal has been modified, the method may further include: when the second target server is different from the first target server, sending a The second network device sends a notification message to notify the second network device to send the DNS configuration to the terminal. Through this possible implementation manner, the second network device can know that the DNS configuration of the terminal is modified, and send the DNS configuration to the terminal, so that the terminal can use the correct DNS configuration.

The foregoing method 700 provided by this embodiment of the present application will be described below through a specific embodiment.

As shown in FIG. 8 , an information processing method 800 provided by an embodiment of the present application may include the following steps:

S801, the UE initiates a PDU session establishment request to the SMF (second network device).

S802, the SMF selects EASDF or L-DNS for the UE according to the situation of the UE.

Subsequently, the UE's DNS request needs to be sent to EASDF or L-DNS via UPF and/or PSA.

S803, the SMF sends a forwarding rule (Forwarding Action Rule, FAR) to the UPF and/or the PSA (ie, the first network device). The FAR is used to redirect the DNS query sent by the identified UE.

Wherein, if the UL CL has been inserted, the outer header of the FAR is the IP address of the L-DNS server or the L-DNS resolver (resolver). If no UL CL is inserted, the outer header of FAR is the IP address of EASDF.

The FAR is received by the UPF and/or PSA and may be saved.

S804: The SMF sends the DNS configuration, that is, the EASDF IP address or the L-DNS IP address, to the UE through the ePCO process.

S805: The DNS configuration of the UE is changed. For example, changing the IP address of EASDF or L-DNS to another DNS server.

S806: The UE initiates a DNS query request, and the DNS query request reaches the UPF and/or the PSA.

S807: UPF and/or PSA intercept the message sent by the UE and find that the message contains a DNS query request, which is a DNS message, then set the target address of the DNS query request to the EASDF IP or L-DNS IP address in S803 .

Specifically, setting the target address of the DNS query request to the EASDF IP or L-DNS IP address in S803 can be implemented in the following two ways:

Method 1: UPF and/or PSA find this DNS query request, and directly replace the destination IP of the DNS query with the EASDF IP or L-DNS IP address; at the same time, UPF can tell SMF through the N4 reporting process, to notify the SMF to resend the DNS configuration to the UE;

Method 2: UPF and/or PSA find this DNS query request and add a header to the outside of the DNS request message, that is, use the previously stored FAR and add an outer header.

S808, UPF and/or PSA send the DNS query request to EASDF or L-DNS.

S809, the UPF and/or the PSA receives the DNS response sent by the EASDF or the L-DNS, and sets the source address of the DNS response as the destination address of the DNS query request sent by the UE.

Wherein, if the DNS query request is modified in the above manner, when the DNS response reaches the UPF and/or PSA, the UPF and/or PSA will change the source IP of the DNS response from the EASDF IP or L-DNS IP back to the original one The DNS IP address modified by the UE.

If the DNS query request is modified using the second method, when the DNS response is received downstream, the UPF and/or the PSA removes the outer header of the DNS response.

S810: The UPF and/or the PSA send a DNS response to the UE.

S811: Since the UPF previously told the SMF through the N4 report process that the DNS configuration of the UE may have changed, the SMF triggers another ePCO process to send the current DNS configuration to the UE.

Using the above method 800, when the location of the UE does not change, and the update period for sending the DNS configuration to the UE by the SMF does not arrive, and the DNS configuration of the UE is modified by other APPs, the UE sends a DNS query request using the modified DNS configuration, then the UPF and /Or the PSA can redirect the DNS query request to the DNS server configured by the SMF, so as to prevent the DNS query request from being sent to other DNS servers and ensure the security of the DNS query request.

FIG. 9 shows another schematic flowchart of an information processing method in an embodiment of the present application, and the method 900 may be executed by a second network device. In other words, the method may be performed by software or hardware installed on the second network device. As shown in Figure 9, the method may include the following steps.

S910: Acquire address information of a third target server that matches the terminal.

For example, when receiving the PDU session establishment request sent by the terminal, the second network device may select assistance information (Single Network Slice Selection Assistance Information, S) according to the current UE location, data network name (Data Network Name, DNN), and single network slice -NSSAI), data network access identifier (DataNetwork Access Identifier, DNAI), and whether the UL CL has been established, etc., search for the EASDF or L-DNS that matches the terminal.

S912, perform the first operation according to the address information of the third target server.

Wherein, the first operation includes but is not limited to at least one of the following:

(1) Generate DNS configuration information of the terminal and send it to the terminal.

(2) Generate a FAR, where the FAR is an outer header (ie, an outer packet header), and send it to the first network device. Wherein, the target address information contained in the outer packet header is the address information of the third target server. For example, the external packet header obtained by the first network device in the method 700 .

(3) Sending the address information of the third target server to the first network device. For example, the first information obtained by the first network in the method 700 .

(4) Generate a DNS configuration update period of the terminal. In the follow-up, the DNS configuration information of the terminal is updated according to the DNS configuration update cycle. That is, when the DNS configuration update period arrives, the second network device sends the address information (ie, DNS configuration information) of the third target server to the terminal. Through this possible implementation, in a DNS configuration update cycle, if the DNS configuration of the terminal is modified by other APPs or users, the modified DNS configuration of the terminal can be reconfigured to the DNS specified by the network side when the cycle arrives configuration.

In a possible implementation, before S910, the method may further include at least one of the following:

(1) Obtain third indication information, wherein the third indication information indicates that the location of the terminal changes. For example, the second network device may subscribe the location information of the terminal to an Access and Mobility Management Function (AMF), and when the location information of the terminal changes, the AMF notifies the SMF. In this possible implementation manner, when the location information of the terminal changes, the second network device re-acquires the address information of the DNS server matching the terminal, and can update the DNS configuration of the terminal, so that it can be used by other APPs or users. The modified DNS configuration is configured as the DNS configuration specified on the network side again.

(2) Receive first indication information sent by the terminal, wherein the first indication information indicates that the DNS configuration of the terminal is modified. The first indication information may be the first indication information sent by the terminal to the core network device in the method 200 . In this possible implementation manner, when the second network device learns that the DNS of the terminal has been modified, it can obtain a DNS server matching the terminal again, and update the DNS configuration of the terminal, so that the modified DNS of the terminal can be changed by other APPs or users. The DNS configuration is again configured as the DNS configuration specified on the network side.

(3) Receive a notification message sent by the first network device, wherein the notification message notifies the second network device to send the DNS configuration to the terminal. For example, in method 700, when the first network device determines that the first target server is different from the second target server, and considers that the DNS of the terminal has been modified, it notifies the first network device, and the first network device can obtain the matching terminal again. The DNS server updates the DNS configuration of the terminal, so that the DNS configuration modified by other APPs or users can be reconfigured as the DNS configuration specified on the network side.

(4) The DNS configuration update cycle arrives. That is, in this possible implementation manner, the second network device periodically updates the DNS configuration of the terminal to ensure that when the period arrives, the DNS configuration modified by other APPs or users is reconfigured to the DNS configuration specified by the network side. .

The foregoing method 900 provided by the embodiments of the present application will be described below through specific embodiments.

FIG. 10 is a flowchart of an information processing method in an embodiment of the present application. As shown in FIG. 10 , the method 1000 mainly includes the following steps:

S1001: The SMF (ie the second network device) triggers the AMF service and subscribes to the location information of the UE

S1002: When the location of the UE changes, especially when the DNAI changes, the AMF notifies the SMF.

S1003: The SMF initiates an EASDF search request or an L-DNS search request to a Network Repository Function (NRF) according to the current UE location, DNN, S-NSSAI, DNAI and other information.

Wherein, if the UL CL has been established, an L-DNS search request is initiated, and if the UL CL does not exist or has not been established, an EASDF search request is initiated.

S1004, the SMF receives the EASDF or L-DNS server address returned by the NRF, where the EASDF or L-DNS server is a DNS server matching the current UE location.

S1005: The SMF updates the IP address of the DNS server to the UE through the ePCO process, that is, updates the IPR address of the DNS server in the DNS configuration of the UE to the IP address of the EASDF or L-DNS server in S1004.

FIG. 11 is a flowchart of an information processing method in an embodiment of the present application. As shown in FIG. 11 , the method 1100 mainly includes the following steps:

S1101: The UE initiates a PDU session establishment request to the SMF (ie, the second network device).

S1102: The SMF initiates an EASDF search request or an L-DNS search request to a Network Repository Function (NRF) according to the current UE location, DNN, S-NSSAI, DNAI and other information.

Wherein, if the UL CL has been established, an L-DNS search request is initiated, and if the UL CL does not exist or has not been established, an EASDF search request is initiated.

S1103, the SMF receives the EASDF or L-DNS server address returned by the NRF.

S1104, the SMF maintains a configuration table according to the received EASDF or L-DNS server address, and the information recorded in the configuration table is shown in Table 1.

Table 1.

UE IP address, or an address segment DNN S-NSSAI DNAI FQDN table EASDF IP address or L-DNS IP address Periodic update time

S1105: Periodically update the address of the DNS server of the UE according to the above-mentioned mapping table.

That is to say, in this embodiment, the EASDF IP address or L-DNS IP address sent to each UE or under the corresponding UE IP address is saved, and a timer T is set. When the timer exceeds T, The SMF then triggers the ePCO procedure to provide the UE with the EASDF IP address or the L-DNS IP address.

In the above technical solution, if the position of the UE changes in a certain period, such as the UE moves, the technical solution described in the above method 1000 can be adopted.

It should be noted that, in the information processing method provided by the embodiments of the present application, the execution body may be an information processing apparatus, or a control module in the information processing apparatus for executing the information processing method. In the embodiments of the present application, a method for performing information processing by an information processing apparatus is used as an example to describe the information processing apparatus provided by the embodiments of the present application.

FIG. 12 shows a schematic structural diagram of an information processing apparatus provided by an embodiment of the present application. As shown in FIG. 11 , the apparatus 1200 mainly includes: a first receiving module 1201 , a first configuration module 1202 and a first sending module 1203 .

In the embodiment of the present application, the first receiving module 1201 is configured to receive a modification instruction for modifying the DNS configuration of the terminal; the first configuration module 1202 is configured to modify the DNS configuration according to the modification instruction; the first sending module 1203: Send first indication information, where the first indication information indicates that the DNS configuration of the terminal is modified.

In a possible implementation manner, the DNS configuration includes at least one of the following:

Address information of the central DNS server;

The edge application server discovers the address information of the functional entity EASDF;

Address information of the local DNS server.

In a possible implementation manner, the first receiving module 1201 is further configured to receive first DNS configuration information; the first configuration module 1202 is further configured to modify the DNS according to the first DNS configuration information configuration.

In a possible implementation manner, the first sending module 1203 sending the first indication information includes: sending the first indication information to the core network device; the first receiving module 1201 receiving the first DNS configuration information, including : Receive the first DNS configuration information sent by the core network device.

In a possible implementation manner, the first sending module 1203 sending the first indication information to the core network device includes: when the terminal is in a connected state, sending the first indication information to the core network device .

In a possible implementation manner, the connection state includes at least one of the following:

Radio resource control RRC connected state;

Register management connection status;

Connection management connection state.

In a possible implementation manner, the first sending module 1203 sending the first indication information includes: sending the first indication information to the chip module of the terminal; the first receiving module 1201 receiving the first DNS The configuration information includes: receiving the first DNS configuration information sent by the chip module, wherein the first DNS configuration information is received from the core network device before the DNS configuration is modified according to the modification instruction DNS configuration information.

In a possible implementation, the first indication information includes at least one of the following:

Non-Access Stratum NAS message indication.

Message indication between the terminal operating system and the chip module.

In a possible implementation manner, the non-access stratum NAS message indication includes at least one of the following:

registration request message;

Registration complete message;

PDU session establishment request message;

PDU session establishment accept message;

PDU session change request message;

PDU session change accept message;

PDU session release request message;

PDU Session Release Accept message.

The information processing apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (television). , TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The information processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The information processing apparatus provided by the embodiments of the present application can implement each process implemented by the terminal in the method embodiments of FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not described here.

FIG. 13 is another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application. As shown in FIG. 13 , the apparatus 1300 mainly includes: a second receiving module 1301 , a second configuration module 1302 and a first setting module 1303 .

In this embodiment of the present application, the second receiving module 1301 is configured to receive second DNS configuration information; the second configuration module 1302 is configured to update the DNS configuration of the terminal according to the second DNS configuration information; A setting module 1303, configured to set the DNS configuration to be unmodifiable and/or set the DNS configuration to the highest priority.

In a possible implementation manner, the second receiving module 1301 receiving the second DNS configuration information includes: receiving the second DNS configuration information sent by the core network device; the first setting module 1303 sets the DNS configuration Unmodifiable includes: sending second indication information to the operating system of the terminal, where the second indication information indicates that the DNS configuration cannot be modified.

In a possible implementation manner, the second receiving module 1301 is further configured to receive third indication information sent by the core network device, where the third indication information indicates that the second DNS configuration information cannot be modified.

In a possible implementation manner, the third indication information includes: a non-access stratum NAS message indication.

The information processing apparatus in this embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (television). , TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The information processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The information processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The information processing apparatus provided by the embodiments of the present application can implement each process implemented by the terminal in the method embodiments of FIG. 5 to FIG. 6 , and achieve the same technical effect. To avoid repetition, details are not described here.

FIG. 14 shows another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application. As shown in FIG. 14 , the apparatus mainly includes: a first acquisition module 1401 , a third receiving module 1402 , a second setting module 1403 , and a first 2. Sending module 1404.

In this embodiment of the present application, the first obtaining module 1401 is configured to obtain first information, where the first information includes: the address of the first target server; the third receiving module 1402 is configured to receive the DNS query of the terminal request, wherein the target address of the DNS query request is the address of the second target server; the second setting module 1403 is configured to set the second target server to the first target server when the second target server is different from the first target server The target address of the DNS query request is set to the address of the first target server; the second sending module 1404 is configured to send the set DNS query request; wherein, the information processing device can parse out whether the data packet from the terminal is Contains DNS query requests.

In a possible implementation manner, the second setting module 1403 sets the target address of the DNS query request to the address of the first target server, including:

Replace the target address of the DNS query request with the address of the first target server; or,

A packet header is added outside the DNS query request, and the target address included in the packet header is the address of the first target server.

In a possible implementation manner, the third receiving module 1402 is further configured to receive a query response to the DNS query request; the second setting module 1403 is further configured to set the source address in the query response Set as the address of the second target server; the second sending module 1404 is further configured to send the modified query response.

In a possible implementation, the second setting module 1403 sets the source address in the query response to the address of the second target server, including:

Replace the source address of the query response with the address of the second target server; or,

The outer packet header of the query response is removed, wherein the source address included in the outer packet header is the address of the first target server.

In a possible implementation manner, the second sending module 1404 is further configured to send a notification message to a second network device when the second target server is different from the first target server, notifying the The second network device sends the DNS configuration to the terminal.

In a possible implementation manner, the first information includes: DNS configuration information of the terminal and/or an external packet header, wherein the external packet header is generated according to the address of the first target server selected for the terminal .

The information processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The information processing apparatus provided in this embodiment of the present application can implement each process implemented by the first network device in the method embodiments shown in FIG. 7 to FIG. 8 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

FIG. 15 shows another schematic structural diagram of an information processing apparatus provided by an embodiment of the present application. As shown in FIG. 15 , the information processing apparatus mainly includes: a second acquisition module 1501 and an operation module 1502 .

In the embodiment of the present application, the second obtaining module 1501 obtains the address information of the third target server matched with the terminal; the operation module 1502 is configured to perform at least one of the following operations according to the address information of the third target server:

generating the DNS configuration information of the terminal and sending it to the terminal;

generating an external packet header and sending it to the first network device;

sending the address information of the third target server to the first network device;

A DNS configuration update cycle of the terminal is generated.

In a possible implementation manner, the second obtaining module 1501 is further configured to perform at least one of the following operations before obtaining the address information of the third target server matching the terminal:

acquiring third indication information, wherein the third indication information indicates that the location of the terminal has changed;

receiving first indication information sent by the terminal, wherein the first indication information indicates that the DNS configuration of the terminal is modified;

receiving a notification message sent by the first network device, wherein the notification message notifies the second network device to send the DNS configuration to the terminal;

Make sure the DNS configuration update cycle arrives.

The information processing apparatus in this embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

The information processing apparatus provided by the embodiments of the present application can implement each process implemented by the second network device in the method embodiments of FIG. 9 to FIG. 11 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 16 , an embodiment of the present application further provides a communication device 1600 , including a processor 1601 , a memory 1602 , and programs or instructions stored in the memory 1602 and executable on the processor 1601 For example, when the communication device 1600 is a terminal, when the program or instruction is executed by the processor 1601, each process of the above-mentioned embodiments of the information processing method 200 to the method 600 can be realized, and the same technical effect can be achieved. When the communication device 1600 is a network-side device, when the program or instruction is executed by the processor 1601, each process of the foregoing information processing method 700 to the embodiment of the method 1100 can be realized, and the same technical effect can be achieved. In order to avoid repetition, it is not repeated here. Repeat.

FIG. 17 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709, a processor 1710 and other components .

Those skilled in the art can understand that the terminal 1700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1710 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 17 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 1704 may include a graphics processor (Graphics Processing Unit, GPU) 17041 and a microphone 17042. camera) to process the image data of still pictures or videos. The display unit 1706 may include a display panel 17061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1707 includes a touch panel 17071 and other input devices 17072 . The touch panel 17071 is also called a touch screen. The touch panel 17071 may include two parts, a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 1701 receives the downlink data from the network side device, and then processes it to the processor 1710; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 1701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 1709 may be used to store software programs or instructions as well as various data. The memory 1709 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 1709 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM) ), erasable programmable read-only memory (ErasablePROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 1710 may include one or more processing units; optionally, the processor 1710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1710.

The processor 1710 is configured to receive a modification instruction for modifying the DNS configuration of the terminal; modify the DNS configuration according to the modification instruction;

The radio frequency unit 1701 is configured to send first indication information, wherein the first indication information indicates that the DNS configuration of the terminal is modified.

Alternatively, the radio frequency unit 1701 is configured to receive the second DNS configuration information;

The processor 1710 is configured to update the DNS configuration of the terminal according to the second DNS configuration information; then set the DNS configuration to be unmodifiable and/or set the DNS configuration to the highest priority.

Specifically, an embodiment of the present application further provides a network side device. As shown in FIG. 18 , the network device 1800 includes: an antenna 1801 , a radio frequency device 1802 , and a baseband device 1803 . The antenna 1801 is connected to the radio frequency device 1802 . In the uplink direction, the radio frequency device 1802 receives information through the antenna 1801, and sends the received information to the baseband device 1803 for processing. In the downlink direction, the baseband device 1803 processes the information to be sent and sends it to the radio frequency device 1802 , and the radio frequency device 1802 processes the received information and sends it out through the antenna 1801 .

The above-mentioned frequency band processing apparatus may be located in the baseband apparatus 1803 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 1803 . The baseband apparatus 1803 includes a processor 1804 and a memory 1805 .

The baseband device 1803 may include, for example, at least one baseband board on which a plurality of chips are arranged, as shown in FIG. 18 , one of the chips is, for example, the processor 1804 , which is connected to the memory 1805 to call a program in the memory 1805 to execute The network devices shown in the above method embodiments operate.

The baseband device 1803 may further include a network interface 1806 for exchanging information with the radio frequency device 1802, and the interface is, for example, a common public radio interface (CPRI for short).

Specifically, the network-side device in the embodiment of the present invention further includes: an instruction or program stored in the memory 1805 and executable on the processor 1804, and the processor 1804 invokes the instruction or program in the memory 1805 to execute the instruction or program shown in FIG. 14 or FIG. 15 . In order to avoid repetition, it is not repeated here.

Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the above information processing method embodiment can be achieved, and the same can be achieved. In order to avoid repetition, the technical effect will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the above information processing method Each process of the embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.

An embodiment of the present application further provides a computer program product, the computer program product includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being When the processor is executed, each process of the above information processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not repeated here.

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

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes 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 the reverse order depending on the functions involved. To perform functions, for example, 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 some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (45)

1. An information processing method, applied to a terminal, wherein the method comprises: receiving a modification instruction for modifying the domain name system DNS configuration of the terminal; Modify the DNS configuration according to the modification instructions; Send first indication information, wherein the first indication information indicates that the DNS configuration of the terminal is modified. 2. The method according to claim 1, wherein the DNS configuration comprises at least one of the following: Address information of the central DNS server; Address information of the edge application server discovery function EASDF; Address information of the local DNS server. 3. The method according to claim 1, wherein after sending the first indication information, the method further comprises: receiving the first DNS configuration information; Modify the DNS configuration according to the first DNS configuration information. 4. The method of claim 3, wherein Sending the first indication information includes: the terminal sending the first indication information to the core network device; Receiving the first DNS configuration information includes: receiving the first DNS configuration information sent by the core network device. 5 . The method according to claim 4 , wherein the sending, by the terminal, the first indication information to the core network device comprises: 5 . When the terminal is in a connected state, the first indication information is sent to the core network device. 6. The method according to claim 5, wherein the connected state comprises at least one of the following: Radio resource control RRC connected state RRC-Connected; Registration management connection status RM-REGISTERED; Connection management connection state CM-CONNECTED. 7. The method of claim 3, wherein Sending the first indication information includes: the operating system of the terminal sending the first indication information to the chip module of the terminal; Receiving the first DNS configuration information includes: the operating system of the terminal receiving the first DNS configuration information sent by the chip module, wherein the first DNS configuration information is the configuration of the DNS according to the modification instruction DNS configuration information received from the core network device before modification. 8. The method according to any one of claims 1 to 7, wherein the first indication information comprises at least one of the following: non-access stratum NAS message indication; Message indication between the terminal operating system and the chip module. 9. The method according to claim 8, wherein the non-access stratum NAS message indication comprises at least one of the following: registration request message; Registration complete message; Protocol data unit PDU session establishment request message; PDU session establishment accept message; PDU session change request message; PDU session change accept message; PDU session release request message; PDU Session Release Accept message. 10. An information processing method, applied to a terminal, wherein the method comprises: receiving second DNS configuration information; updating the DNS configuration of the terminal according to the second DNS configuration information; Set the DNS configuration to be unmodifiable and/or set the DNS configuration to be the highest priority. 11. The method of claim 10, wherein: Receiving the second DNS configuration information includes: the chip module of the terminal receiving the second DNS configuration information; Setting the DNS configuration to be unmodifiable includes: the chip module of the terminal sending second indication information to the operating system of the terminal, where the second indication information indicates that the DNS configuration is unmodifiable. 12. The method according to claim 10 or 11, wherein before setting the target DNS to be unmodifiable, the method further comprises: Receive third indication information sent by the core network device, where the third indication information indicates that the second DNS configuration information cannot be modified. The method according to claim 12, wherein the third indication information comprises: a non-access stratum NAS message indication. 14. An information processing method, applied to a first network device, wherein the method comprises: Obtain first information, wherein the first information includes: the address of the first target server; receiving a DNS query request from the terminal, wherein the target address of the DNS query request is the address of the second target server; When the second target server is different from the first target server, setting the target address of the DNS query request to the address of the first target server; Send the set DNS query request; Wherein, the first network device can parse out whether the data packet from the terminal contains a DNS query request. 15. The method according to claim 14, wherein setting the target address of the DNS query request to the address of the first target server, comprising: Replace the target address of the DNS query request with the address of the first target server; or, A packet header is added outside the DNS query request, and the target address included in the packet header is the address of the first target server. 16. The method according to claim 14, wherein after sending the modified DNS query request, the method further comprises: receiving a query response to the DNS query request; setting the source address in the query response to the address of the second target server; The modified query response is sent. 17. The method according to claim 16, wherein setting the source address in the query response to the address of the second target server comprises: Replace the source address of the query response with the address of the second target server; or, The outer packet header of the query response is removed, wherein the source address included in the outer packet header is the address of the first target server. 18. The method according to any one of claims 14 to 17, wherein after receiving the DNS query request of the terminal, the method further comprises: In the case that the second target server is different from the first target server, a notification message is sent to the second network device to notify the second network device to send the DNS configuration to the terminal. 19. The method according to any one of claims 14 to 17, wherein the first information comprises: DNS configuration information of the terminal and/or an external header, wherein the external header is The address of the first target server selected by the terminal is generated. 20. An information processing method, applied to a second network device, wherein the method comprises: Obtain the address information of the third target server that matches the terminal; Perform at least one of the following operations according to the address information of the third target server: generating the DNS configuration information of the terminal and sending it to the terminal; generating an external packet header and sending it to the first network device; sending the address information of the third target server to the first network device; A DNS configuration update cycle of the terminal is generated. 21. The method according to claim 20, wherein before acquiring the address information of the third target server matched with the terminal, the method further comprises one of the following: acquiring third indication information, wherein the third indication information indicates that the location of the terminal has changed; receiving first indication information sent by the terminal, wherein the first indication information indicates that the DNS configuration of the terminal is modified; receiving a notification message sent by the first network device, wherein the notification message notifies the second network device to send the DNS configuration to the terminal; DNS configuration update cycle arrives. 22. An information processing device, comprising: a first receiving module, configured to receive a modification instruction for modifying the DNS configuration of the terminal; a first configuration module, configured to modify the DNS configuration according to the modification instruction; A first sending module, configured to send first indication information, wherein the first indication information indicates that the DNS configuration of the terminal is modified. 23. The apparatus of claim 22, wherein the DNS configuration comprises at least one of the following: Address information of the central DNS server; The edge application server discovers the address information of the functional entity EASDF; Address information of the local DNS server. 24. The apparatus of claim 22, wherein The first receiving module is further configured to receive the first DNS configuration information; The first configuration module is further configured to modify the DNS configuration according to the first DNS configuration information. 25. The apparatus of claim 24, wherein The sending, by the first sending module, the first indication information includes: sending the first indication information to a core network device; The first receiving module receiving the first DNS configuration information includes: receiving the first DNS configuration information sent by the core network device. 26. The apparatus according to claim 25, wherein the first sending module sends the first indication information to the core network device, comprising: When the terminal is in a connected state, the first indication information is sent to the core network device. 27. The device according to claim 26, wherein the connected state comprises at least one of the following: Radio resource control RRC connected state RRC-Connected; Registration management connection status RM-REGISTERED; Connection management connection state CM-CONNECTED. 28. The apparatus of claim 24, wherein The sending, by the first sending module, the first indication information includes: sending the first indication information to the chip module of the terminal; The receiving, by the first receiving module, the first DNS configuration information includes: receiving the first DNS configuration information sent by the chip module, wherein the first DNS configuration information is to configure the DNS according to the modification instruction DNS configuration information received from the core network device before modification. 29. The apparatus according to any one of claims 22 to 28, wherein the first indication information comprises at least one of the following: non-access stratum NAS message indication; Message indication between the terminal operating system and the chip module. 30. The apparatus according to claim 29, wherein the non-access stratum NAS message indication comprises at least one of the following: registration request message; Registration complete message; Protocol data unit PDU session establishment request message; PDU session establishment accept message; PDU session change request message; PDU session change accept message; PDU session release request message; PDU Session Release Accept message. 31. An information processing device, characterized in that the device comprises: The second receiving module is used for receiving the second DNS configuration information; A second configuration module, configured to update the DNS configuration of the terminal according to the second DNS configuration information; A first setting module, configured to set the DNS configuration to be unmodifiable and/or set the DNS configuration to the highest priority. 32. The apparatus of claim 31, wherein The second receiving module receiving the second DNS configuration information includes: receiving the second DNS configuration information sent by the core network device; The first setting module setting the DNS configuration to be unmodifiable includes: sending second indication information to the operating system of the terminal, where the second indication information indicates that the DNS configuration is unmodifiable. 33. The apparatus according to claim 31 or 32, wherein the second receiving module is further configured to receive third indication information sent by a core network device, wherein the third indication information indicates the Second DNS configuration information cannot be modified. 34. The apparatus according to claim 33, wherein the third indication information comprises: a non-access stratum NAS message indication. 35. An information processing device, characterized in that the device comprises: a first obtaining module, configured to obtain first information, wherein the first information includes: the address of the first target server; The third receiving module is configured to receive the DNS query request of the terminal, wherein the target address of the DNS query request is the address of the second target server; A second setting module, configured to set the target address of the DNS query request to the address of the first target server when the second target server is different from the first target server; The second sending module is used to send the set DNS query request; Wherein, the information processing device can analyze whether the data packet from the terminal contains a DNS query request. 36. The apparatus according to claim 35, wherein the second setting module sets the target address of the DNS query request to the address of the first target server, comprising: Replace the target address of the DNS query request with the address of the first target server; or, A packet header is added outside the DNS query request, and the target address included in the packet header is the address of the first target server. 37. The apparatus of claim 36, wherein The third receiving module is further configured to receive a query response of the DNS query request; The second setting module is further configured to set the source address in the query response to the address of the second target server; The second sending module is further configured to send the modified query response. 38. The apparatus according to claim 37, wherein the second setting module sets the source address in the query response to the address of the second target server, comprising: Replace the source address of the query response with the address of the second target server; or, The outer packet header of the query response is removed, wherein the source address included in the outer packet header is the address of the first target server. 39. The device of any one of claims 35 to 38, wherein The second sending module is further configured to send a notification message to a second network device when the second target server is different from the first target server, notifying the second network device to send a message to the terminal DNS configuration. 40. The apparatus according to any one of claims 35 to 38, wherein the first information comprises: DNS configuration information of the terminal and/or an external header, wherein the external header is based on the The address of the first target server selected by the terminal is generated. 41. An information processing device, characterized in that the device comprises: The second obtaining module obtains the address information of the third target server matched with the terminal; An operation module, configured to perform at least one of the following operations according to the address information of the third target server: generating the DNS configuration information of the terminal and sending it to the terminal; generating an external packet header and sending it to the first network device; sending the address information of the third target server to the first network device; A DNS configuration update cycle of the terminal is generated. 42. The device according to claim 41, wherein the second obtaining module is further configured to perform at least one of the following operations before obtaining the address information of the third target server matched with the terminal: acquiring third indication information, wherein the third indication information indicates that the location of the terminal has changed; receiving first indication information sent by the terminal, wherein the first indication information indicates that the DNS configuration of the terminal is modified; receiving a notification message sent by the first network device, wherein the notification message notifies the second network device to send the DNS configuration to the terminal; Make sure the DNS configuration update cycle arrives. 43. A terminal, characterized in that it comprises a processor, a memory, and a program or instruction stored on the memory that can be run on the processor, the program or instruction being executed by the processor to achieve: Steps of the information processing method according to any one of claims 1 to 13. 44. A network side device, characterized in that it comprises a processor, a memory and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor Steps for implementing the information processing method as claimed in any one of claims 14 to 21. 45. A readable storage medium, wherein a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the implementation of any one of claims 1 to 13 is implemented. An information processing method, or the steps of implementing the information processing method as claimed in any one of claims 14 to 21.

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