CN110417840A - An information processing method and device - Google Patents

Abstract

The present application relates to the field of communication technology, and in particular to an information processing method and device for realizing mapping between an access network session and a mobile network session. The method includes: the access gateway receives the first message sent by the core network device, The first message includes access network session information, and the access network session information includes at least one of the following information: an Internet Protocol IP address of the terminal, information indicating how to obtain the IP address, and a user report from the terminal. text information, the user message information includes at least one of the following: a virtual local area network VLAN identifier, the number of VLAN tags, the medium access control MAC address of the terminal, combination information of the VLAN identifier and the MAC address of the terminal; The access gateway maps the access network session and the mobile network session corresponding to the terminal according to the access network session information.

Description

An information processing method and device

technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to an information processing method and device.

Background technique

Many services provided by the fixed network and the mobile network are basically the same, but the mobile network and the fixed network are two independent service networks, which makes the operation and maintenance costs high, and when developing new services, the two networks must be upgraded separately for similar services. This makes the cost of providing new services high. After the integration of fixed and mobile networks, an integrated network will be formed with relatively low operation and maintenance costs, and there is no need to upgrade the fixed network and mobile network separately for service development. It only needs to upgrade the unified service platform once to provide services for all parties at the same time. Therefore, the integration of fixed network and mobile network is an inevitable trend of network development.

Currently, in a fixed-mobile converged network, the access network usually includes the access network elements of the fixed network, and the core network usually includes the core network elements of the mobile network. Data is transmitted in the access network elements using fixed network sessions. The transmission in the core network element uses the mobile network session. In the prior art, it does not involve how to create a session in a fixed-mobile converged network.

Contents of the invention

Embodiments of the present application provide an information processing method and device for realizing the mapping between an access network session and a mobile network session.

In order to achieve the above object, the embodiments of the present application adopt the following technical solutions:

In a first aspect, an information processing method is provided, the method includes: an access gateway receives a first message sent by a core network device, the first message includes access network session information (wherein the first message may be an N2 session creation request message , the access network can be an access network of a fixed network or an access network that transmits data through Ethernet encapsulation, etc.), the access network session information includes at least one of the following information: the terminal's Internet Protocol IP address, IP address acquisition The instruction information of the mode, the user message information from the terminal, the user message information includes at least one of the following: the virtual local area network VLAN ID, the number of VLAN tags, the terminal's media access control MAC address, the VLAN ID and the terminal's Combination information of the MAC address; the access gateway maps the access network session corresponding to the terminal to the mobile network session according to the access network session information (for example, maps the access network session corresponding to the terminal to a mobile network session, or Mapping the mobile network session corresponding to the terminal to an access network session). In the above technical solution, the access gateway can realize the mapping between the access network session and the mobile network session, and can perform mapping according to different information, thereby improving the performance of the communication system.

In a possible implementation manner of the first aspect, when the access network session information includes the terminal's IP address and/or indication information of an IP address acquisition method, the first message further includes the terminal's MAC address. In the above possible implementation manner, the MAC address of the terminal is carried in the first message, so that the access gateway does not need to obtain it through other signaling, and the signaling interaction between network elements is reduced.

In a possible implementation manner of the first aspect, when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes the MAC address of the access gateway. In the above possible implementation manner, the NAS message carries the MAC address of the access gateway and sends it to the terminal, so that the terminal does not need to obtain it through other signaling, which reduces the signaling interaction between network elements. Further, when the terminal sends the uplink data message, it may directly use the MAC address of the access gateway carried in the NAS message as the destination MAC address of the uplink data message.

In a possible implementation of the first aspect, the method further includes: the access gateway verifies the data message and/or the address resolution protocol ARP request message according to the IP address of the terminal and the MAC address of the terminal . In the above possible implementation manners, the security of data transmission and related information can be guaranteed by verifying the data message and/or the address resolution protocol ARP request message, and the data message can be an uplink data message.

In a possible implementation manner of the first aspect, the method further includes: the access gateway discards the address resolution protocol ARP request message from the terminal. In the above possible implementation manner, when the terminal has obtained the MAC address of the access gateway through other means, the access gateway may discard the ARP request message sent by the terminal, thereby reducing signaling interaction between network elements.

In a possible implementation manner of the first aspect, when the access network session information includes indication information of an IP address acquisition method, the method further includes: the access gateway sends a second message to the access resource management network element, and the second message is The second message includes instruction information of an IP address acquisition method. In the foregoing possible implementation manner, the access resource management network element may instruct other network elements to acquire the IP address of the terminal according to the indication information.

In a possible implementation manner of the first aspect, the second message further includes the MAC address of the terminal. In the foregoing possible implementation manner, the second message carries the MAC address of the terminal in the second message, so that the access resource management network element does not need to be obtained through other signaling, and signaling interaction between network elements is reduced.

In a possible implementation manner of the first aspect, when the access network session information includes user packet information, the access gateway, according to the access network session information, performs Mapping, including: the access gateway sends user packet information to the access resource management network element; the access gateway receives the mapping information sent by the access resource management network element, and the mapping information includes mapping rules; The access network session corresponding to the terminal is mapped with the mobile network session. In the above possible implementation manners, when the access network is a fixed network, the access gateway can obtain the mapping rules according to the user packet information, and then realize the mapping between the access network sessions and the mobile network sessions according to the mapping rules.

In a second aspect, an information processing method is provided. The method includes: a core network device receiving a session request message from a terminal; the core network device sending a first message to an access gateway, where the first message includes access network session information, and the access The network session information includes at least one of the following information: the Internet Protocol IP address of the terminal, the indication information of the IP address acquisition method, the user message information from the terminal, and the user message information includes at least one of the following: virtual local area network VLAN ID, number of VLAN tags, media access control MAC address of the terminal, combination information of the VLAN ID and the MAC address of the terminal. In the above technical solution, the core network device sends the first message to the access gateway, so that the access gateway can realize the mapping between the access network session and the mobile network session according to the access network session information included in the first message, and can according to Different information is mapped to improve the performance of the communication system.

In a possible implementation manner of the second aspect, when the access network session information includes the terminal's IP address and/or indication information of an IP address acquisition method, the first message further includes the terminal's MAC address. In the above possible implementation manner, the MAC address of the terminal is carried in the first message, so that the access gateway does not need to obtain it through other signaling, and the signaling interaction between network elements is reduced.

In a possible implementation manner of the second aspect, when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes the MAC address of the access gateway. In the above possible implementation manner, the NAS message carries the MAC address of the access gateway and sends it to the terminal, so that the terminal does not need to obtain it through other signaling, which reduces the signaling interaction between network elements.

In a possible implementation manner of the second aspect, the session request message includes user message information; or, the core network device obtains the user message information from the authentication, authorization and accounting server. In the foregoing possible implementation manners, the diversity and flexibility of obtaining user packets by the core network equipment are improved.

In a third aspect, an information processing method is provided, the method comprising: the terminal sends user message information to a core network device, and the user message information includes at least one of the following: a virtual local area network VLAN ID, the number of VLAN tags, the terminal's Combination information of the media access control MAC address, the VLAN ID, and the MAC address of the terminal. In the above possible implementation, the terminal sends the user message information to the core network device, so that the core network device sends it to the access gateway, so that when the access gateway receives the user message information, it can Realize the mapping between the access network session and the mobile network session.

In a possible implementation manner of the third aspect, the method further includes: the terminal receiving the MAC address of the access gateway sent by the core network device, and the MAC address of the access gateway may be carried in a NAS message. In the above possible implementation manner, the MAC address of the access gateway received by the terminal may be carried in the NAS message, so that the terminal does not need to obtain it through other signaling, and the signaling interaction between network elements is reduced. Furthermore, when the terminal sends the uplink data message, the terminal may use the MAC address carried in the NAS message as the destination MAC address of the uplink data message.

In a possible implementation manner of the third aspect, the method further includes: the terminal discards the ARP request message from the access gateway. In the above possible implementation, when the access gateway has acquired the terminal's MAC address through other means, the terminal may discard the ARP request message sent by the access gateway, thereby reducing signaling interaction between network elements.

In a fourth aspect, an information processing device is provided, and the device is used as an access gateway for realizing the function of the information processing method provided in any possible implementation manner of the first aspect to the first aspect. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more functionally corresponding units as described above.

In a possible implementation of the fourth aspect, the structure of the information processing device includes a processor, a memory, a communication interface and a bus, the processor, the memory and the communication interface are connected through the bus, the memory is used to store program codes, and the communication The interface is used to support the information processing device to communicate. When the program code is executed by the processor, the information processing device performs the following steps: receiving the first message sent by the core network device, the first message includes the access network session information, and receiving The network access session information includes at least one of the following information: the Internet Protocol IP address of the terminal, the instruction information of the IP address acquisition method, and the user message information from the terminal, and the user message information includes at least one of the following: virtual local area network The VLAN ID, the number of VLAN tags, the MAC address of the terminal, the combined information of the VLAN ID and the MAC address of the terminal; according to the access network session information, the terminal corresponding to the access network session and the mobile network session map.

In a possible implementation manner of the fourth aspect, when the access network session information includes the terminal's IP address and/or information indicating how to obtain the IP address, the first message further includes the terminal's MAC address.

In a possible implementation manner of the fourth aspect, when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes the MAC address of the access gateway.

In a possible implementation manner of the fourth aspect, the MAC address of the access gateway carried in the NAS message is used as the destination MAC address of the uplink data packet sent by the terminal.

In a possible implementation manner of the fourth aspect, the information processing device further performs the following step: verifying the data message and/or the address resolution protocol ARP request message according to the IP address of the terminal and the MAC address of the terminal test.

In a possible implementation manner of the fourth aspect, the information processing apparatus further performs the following step: the access gateway discards the address resolution protocol ARP request message from the terminal.

In a possible implementation manner of the fourth aspect, when the access network session information includes indication information of an IP address acquisition method, the information processing device further performs the following steps: sending a second message to the access resource management network element, The second message includes indication information of an IP address acquisition manner.

In a possible implementation manner of the fourth aspect, the second message further includes the MAC address of the terminal.

In a possible implementation manner of the fourth aspect, when the access network session information includes user packet information, the information processing device further performs the following step: sending the user packet information from the terminal to the access resource management network element ; receiving the mapping information sent by the access resource management network element, the mapping information includes mapping rules; according to the mapping rules, mapping the access network session and the mobile network session corresponding to the terminal.

A fifth aspect provides an information processing device, which is used as a core network device to implement the functions of the information processing method provided in any possible implementation manners of the second aspect to the second aspect. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more functionally corresponding units as described above.

In a possible implementation manner of the fifth aspect, the structure of the information processing device includes a processor, a memory, a communication interface and a bus, the processor, the memory and the communication interface are connected through the bus, the memory is used to store program codes, communicate The interface is used to support the information processing device to communicate. When the program code is executed by the processor, the information processing device performs the following steps: receiving a session request message from the terminal, and sending a first message to the access gateway, the first message includes Access network session information. The access network session information includes at least one of the following information: the terminal's Internet Protocol IP address, information indicating how to obtain the IP address, and user message information from the terminal. The user message information includes the following At least one of: the virtual local area network VLAN ID, the number of VLAN tags, the MAC address of the terminal, and the combination information of the VLAN ID and the MAC address of the terminal.

In a possible implementation manner of the fifth aspect, when the access network session information includes the terminal's IP address and/or information indicating how to obtain the IP address, the first message further includes the terminal's MAC address.

In a possible implementation manner of the fifth aspect, when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes the MAC address of the access gateway.

In a possible implementation manner of the fifth aspect, the session request message includes user message information; or, the information processing apparatus further performs the following step: obtaining user message information from an authentication, authorization and accounting server.

A sixth aspect provides an information processing device, which is used as a terminal to implement the functions of the information processing method provided by any possible implementation manners of the third aspect to the third aspect. The functions may be implemented by hardware, or may be implemented by executing corresponding software through hardware. Hardware or software includes one or more functionally corresponding units as described above.

In a possible implementation manner of the sixth aspect, the structure of the information processing device includes a processor, a memory, a communication interface, and a bus, the processor, the memory, and the communication interface are connected through the bus, the memory is used to store program codes, and communicate The interface is used to support the information processing device to communicate. When the program code is executed by the processor, the information processing device performs the following steps: send user message information to the core network equipment, and the user message information includes at least one of the following: The VLAN identifier of the virtual local area network, the number of VLAN tags, the MAC address of the terminal, and the combination information of the VLAN identifier and the MAC address of the terminal.

In a possible implementation manner of the sixth aspect, the information processing apparatus further performs the following step: receiving the MAC address of the access gateway sent by the core network device, and the MAC address of the access gateway may be carried in a NAS message. Furthermore, when the information processing device sends the uplink data message, the information processing device may use the MAC address carried in the NAS message as the destination MAC address of the uplink data message.

In a possible implementation manner of the sixth aspect, the information processing device further performs the following step: discarding the ARP request message from the access gateway.

In a seventh aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored, and when the computer program or instruction is executed, any one of the above-mentioned first aspect or any one of the possible options of the first aspect is executed. The information processing method provided by the implementation.

In an eighth aspect, a computer-readable storage medium is provided. Computer programs or instructions are stored in the computer-readable storage medium. When the computer programs or instructions are executed, any one of the above-mentioned second aspect or the second aspect may be executed. The information processing method provided by the implementation.

In the ninth aspect, a computer-readable storage medium is provided. Computer programs or instructions are stored in the computer-readable storage medium. When the computer programs or instructions are executed, any one of the above-mentioned third aspects or any possible method of the third aspect is executed. The information processing method provided by the implementation.

In a tenth aspect, a computer program product is provided. The computer program product includes a computer program or an instruction. When the computer program or instruction is executed, the information provided by the first aspect or any possible implementation of the first aspect is executed. Approach.

In the eleventh aspect, a computer program product is provided, which is characterized in that the computer program product includes a computer program or instruction, and when the computer program or instruction is executed, the second aspect or any possible implementation of the second aspect is executed The information processing method provided by the method.

A twelfth aspect provides a computer program product, characterized in that the computer program product includes a computer program or instruction, and when the computer program or instruction is executed, the above third aspect or any possible implementation of the third aspect is executed The information processing method provided by the method.

In a thirteenth aspect, a communication system is provided, and the communication system includes an access gateway, a core network device, and a terminal. Wherein, the access gateway may be the access gateway provided by the above aspects, and is used to support the access gateway to execute the information processing method provided by the above first aspect or any possible implementation of the first aspect; and/or The core network device is the core network device provided by the above aspects, and is used to support the core network device to execute the information processing method provided by the above second aspect or any possible implementation of the second aspect; and/or, the terminal The terminal provided for the foregoing aspects is used to support the terminal to execute the information processing method provided in the foregoing third aspect or any possible implementation manner of the third aspect.

It can be understood that the device, computer storage medium, computer program product, or communication system of any one of the information processing methods provided above are all used to execute the corresponding method provided above, therefore, the beneficial effects it can achieve can be With reference to the beneficial effects in the corresponding method provided above, details will not be repeated here.

Description of drawings

FIG. 1 is a schematic structural diagram of a fixed-mobile convergence network provided in an embodiment of the present application;

FIG. 2 is a first schematic flow diagram of an information processing method provided by an embodiment of the present application;

Fig. 3 is the conversion schematic diagram of a kind of VLAN information that the embodiment of the present application provides;

FIG. 4 is a schematic flow diagram II of an information processing method provided by an embodiment of the present application;

FIG. 5 is a schematic flow diagram III of an information processing method provided in an embodiment of the present application;

FIG. 6 is a schematic flowchart 4 of an information processing method provided in an embodiment of the present application;

FIG. 7 is a schematic flow diagram five of an information processing method provided by an embodiment of the present application;

FIG. 8 is a sixth schematic flow diagram of an information processing method provided by an embodiment of the present application;

FIG. 9 is a first structural schematic diagram of an information processing device provided by an embodiment of the present application;

FIG. 10 is a second structural schematic diagram of an information processing device provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram III of an information processing device provided in an embodiment of the present application;

FIG. 12 is a fourth structural schematic diagram of an information processing device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Wherein, in the description of the present application, unless otherwise specified, "plurality" refers to two or more than two. In addition, in the embodiments of the present application, words such as "first" and "second" do not limit the quantity and execution order.

The embodiments of the present application may be applied to various fixed-mobile convergence networks or fixed-mobile convergence systems. For example: fixed network and global system of mobile communication (global system of mobile communication, GSM) system converged network, fixed network and code division multiple access (code division multiple access, CDMA) system converged network, fixed network and broadband code division multiple access (wideband code division multiple access, WCDMA) system converged network, fixed network and general packet radio service (general packet radio service, GPRS) converged network, fixed network and long term evolution (long term evolution, LTE) system converged network, Converged network of fixed network and LTE frequency division duplex (FDD) system, converged network of fixed network and LTE time division duplex (TDD) system, fixed network and universal mobile telecommunication system (universal mobile telecommunication system, UMTS) converged network, fixed network and 5G communication system converged network, and fixed network and subsequent evolved mobile communication system converged network. In this application, a fixed network may also be referred to as a fixed network for short.

The embodiments of the present application can also be applied to communication systems composed of other types of access networks and core networks. For example, other types of access networks can be access networks that use Ethernet encapsulation to transmit data, and the same applies to the embodiments of the present application. Be applicable.

The embodiment of the present application is described by taking a converged network of a fixed network and a 5G mobile communication system as an example. As shown in Figure 1, the converged network includes a fixed network access network, a 5G core network, and a data network (data network, DN) connected to the 5G core network. Wherein, the fixed network access network may include an access device, an access point (access node, AN) and an access gateway function (access gateway function, AGF) network element. The access device includes: a resident gateway (residential gateway, RG) or a fixed network terminal device. The AGF may include a control plane (AGF control plane, AGF-CP) function and a user plane function (AGF user plane, AGF-UP). Specifically, the access device may be a server, a router, a switch, a network bridge, a computer, a user equipment, a terminal, a terminal device, a set top box (STB), etc., and for convenience of description, it is collectively referred to as a terminal in this embodiment of the application. For ease of description, they are collectively referred to as access points in this embodiment of the application.

The 5G core network can include control plane (control plane, CP) network elements and user plane (user plane, UP) network elements. The CP network elements can be used to deliver data packet forwarding policies, QoS control policies, etc. to the user plane. Elements can be used to be responsible for packet forwarding, QoS control, and billing information. Wherein, the CP network element may include: access and mobility management function (access and mobility management function, AMF) network element, session management function (session management function, SMF) network element, authentication service function (authentication server function, AUSF) network element The element, the unified data management (unified data management, UDM) network element, the policy control function (policy control function, PCF) network element, and the UP network element may include: a user plane function (user plane function, UPF) network element.

Among them, AMF can be used to be responsible for terminal access management functions; SMF can be used to manage user protocol data unit (protocol data unit, PDU) session creation, deletion, etc., maintain PDU session context and user plane forwarding pipeline information, etc.; AUSF can be used for non- User authentication; UDM can be used to manage user subscription information; PCF can be used to generate policies for users to establish PDU sessions; UPF can be used to provide user plane services for user PDU sessions, and is the interface gateway between the operator network and external networks.

The terminal communicates with the AMF network element through the N1' interface, the AGF-CP communicates with the AMF network element through the N2' interface, the AGF-UP communicates with the UPF network element through the N3' interface, and the UPF network element communicates with the SMF network element through the N4' interface. The UPF NE communicates with the DN through the N6 interface, the SMF NE communicates with the PCF NE through the N7 interface, the AMF NE communicates with the UDM NE through the N8 interface, and the UPF NE communicates with other UPF NEs through the N9 interface. The AMF network element communicates with the UDM network element through the N10 interface, the AMF network element communicates with the SMF network element through the N11 interface, the AMF network element communicates with the AUSF network element through the N12 interface, and the AMF network element communicates with other AMF network elements through the N14 interface. Communicate with PCF network elements through the N15 interface.

It should be noted that the N1' interface, N2' interface N3' and N4' interfaces in Figure 1 can correspond to the N1 interface, N2 interface, N3 interface and N4 interface in the 5G communication system respectively. In addition, the name of the interface between network elements is just an example, and the name of the interface may be another name in a specific implementation, which is not specifically limited in this embodiment of the present application.

The network architecture and application scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

In this embodiment of the application, the data transmission channel between the terminal and the user plane network element (for example, UPF) may include a first data transmission channel and a second data transmission channel, and the first data transmission channel may refer to For data transmission channels between gateways, the second data transmission channel may refer to a data transmission channel between an access gateway and a user plane network element. The first data transmission channel may also be called an access network session, and the second data transmission may also be called a mobile network session.

FIG. 2 is a schematic flow chart of an information processing method provided by an embodiment of the present application. Referring to FIG. 2 , the method includes the following steps.

S201: The core network device sends a first message to the access gateway, where the first message includes access network session information.

The access network session information includes at least one of the following information: the terminal's Internet Protocol IP address, information indicating how to obtain the IP address, and user packet information from the terminal. The user message information includes at least one of the following: a virtual local area network (virtual local area network, VLAN) identifier, the number of VLAN tags, a media access control (media access control, MAC) address of the terminal, a VLAN identifier and the MAC address of the terminal Combination information of the address.

S202: The access gateway receives the first message sent by the core network device. Wherein, the first message in S201 is consistent with the first message in S202, please refer to the following description for details.

Wherein, the IP address of the terminal may be an IPv4 address or an IPv6 address. The indication information of the IP address acquisition method may be used to indicate the acquisition method of the terminal's IP address, and the acquisition method may include: obtaining the terminal's IP address through a non-access stratum (non access stratum, NAS) message/signaling, or Obtain the IP address of the terminal through a dynamic host configuration protocol (DHCP), or obtain the IP address of the terminal through DHCPv6, or obtain the IP address of the terminal through a stateless address allocation protocol, or obtain the IP address of the terminal through other protocols or methods The IP address and the like of the terminal are obtained, which is not specifically limited in this embodiment of the present application.

In addition, the VLAN identifier is used to identify the VLAN where the terminal is located. The VLAN tag (tag) may include a server tag (s-tag) and a user tag (c-tag), and the number of VLAN tags included in the user packet information from the terminal may be 0, 1 or 2. The MAC address of the terminal may be a MAC address table, that is, the terminal includes multiple MAC addresses, such as MAC1, MAC2, MAC3 and so on. The combined information of the VLAN identifier and the MAC address of the terminal includes the MAC address and the VLAN information of the terminal corresponding to the access network session, and the combined information can also be a MAC-VLAN table, that is, when the terminal includes a plurality of MAC addresses Next, the combined information includes a plurality of MAC-VLAN information, for example, (MAC1, VLAN1), (MAC1, VLAN2), (MAC2, VLAN2) and so on.

Specifically, the access network session information includes the terminal's IP address, that is, the first message includes the terminal's IP address, and the access gateway can parse the first message to obtain the terminal's IP address. At this time, the first The message can be used to implicitly indicate that the terminal's IP address is obtained through NAS messages, that is, the access gateway can determine the terminal's IP address through NAS according to the access network session information including the terminal's IP address. message acquisition. Alternatively, the access network session information includes indication information of an IP address acquisition method, that is, the first message directly includes information for explicitly indicating the terminal's IP address acquisition method, so that when the access gateway receives the first message, The IP address of the terminal may be acquired according to a corresponding IP address acquisition manner. Alternatively, the access network session information includes user message information, specifically, it may include one or more of the VLAN ID, the number of VLAN tags, the MAC address of the terminal, and the combination of the VLAN ID and the MAC address of the terminal. Alternatively, the access network session information includes two or all of the terminal's IP address, information indicating how to obtain the IP address, and user packet information.

Further, when the access network session information includes the IP address of the terminal and/or information indicating how to obtain the IP address, the first message may also include the MAC address of the terminal, that is, the core network device uses the first message to send the terminal The MAC address of the terminal is sent to the access gateway, and the access gateway can record the MAC address of the terminal.

Optionally, when the access network session information includes the IP address of the terminal, the first message may also include a NAS message, and the NAS message includes the IP address of the terminal and the MAC address of the access gateway, and the access gateway receives the When the first message is received, the NAS message may not be parsed, but the NAS message may be sent to the terminal, so that the terminal obtains its IP address through the NAS message, and at the same time obtains the MAC address of the access gateway, and the terminal may Record the MAC address of the access gateway. Here, the access network session information and the NAS message can be regarded as two pieces of information paralleled in the first message.

Exemplarily, taking the converged network shown in Figure 1 of the fixed-mobile converged network as an example, the core network device may be an SMF network element, the access gateway may be an AGF network element, and the first message may be an N2 session creation request message, The access network session information is the fixed network session information. Specifically, during the process of creating a PDU session, the terminal may send a PDU session establishment request to the AGF. The AGF sends the PDU session establishment request to the SMF. Optionally, the PDU session request may carry the MAC address of the terminal. When the SMF receives the PDU session request, the SMF can send an N2 session creation request message to the AGF, and the N2 session creation request message can include the session type, the terminal's IP address and the NAS message. Optionally, the N2 session creation request message also includes the terminal MAC address, and the NAS message may also include the MAC address of the AGF.

S203: The access gateway maps the access network session and the mobile network session corresponding to the terminal according to the access network session information.

When the access gateway receives the first message, the access gateway can map the access network session corresponding to the terminal to the corresponding mobile network session according to the access network session information, or map the mobile network session corresponding to the terminal Mapped in its corresponding access network session.

Wherein, when the access network session information includes different information, the process of mapping the access network session and the mobile network session corresponding to the terminal by the access gateway according to the access network session information will also be different. describe.

Type 1, when the access network session information includes the IP address of the terminal, the access gateway maps the terminal's corresponding access network session and mobile network session through the terminal's IP address.

Specifically, when the access gateway receives the uplink data packet sent by the terminal to the core network device, the access gateway can determine the transmission tunnel corresponding to the IP address of the terminal in the core network according to the IP address of the terminal, and Encapsulating a part of the uplink data message, or a complete uplink data message, or a modified uplink data message in a transmission tunnel, for example, the transmission tunnel may be (GPRS tunneling protocol for the user plane, GTP-U); Afterwards, the access gateway can send the modified uplink data packet to the user plane network element of the core network.

Correspondingly, when the access gateway receives the downlink data packet sent by the user plane network element of the core network, the access gateway can decapsulate the downlink data packet (for example, GTP-U decapsulation), and determine the For the access network session corresponding to the IP address of the terminal, modify or add the access network header to the decapsulated downlink data message, use the MAC address of the terminal as the destination MAC address, and use the MAC address of the access gateway as the destination MAC address. The source MAC address; afterward, the access gateway sends the downlink data packet with the access network packet header added to the terminal.

Type II, when the access network session information includes indication information of an IP address acquisition method, the access gateway obtains the terminal's IP address according to the IP address acquisition method, and performs session mapping according to the terminal's IP address.

Specifically, the access gateway can monitor and obtain the IP address of the terminal according to the IP address acquisition method indicated by the indication information, and then map the terminal's corresponding access network session and mobile network session according to the first method above. For example, when the IP address acquisition method is obtained through DHCP, the access gateway can monitor the DHCP message, obtain the IP address of the terminal from the DHCP message, and then access the corresponding terminal according to the first method above. Web sessions and mobile web sessions are mapped.

Type III, when the access network session information includes user packet information from the terminal, the access gateway maps the access network session corresponding to the terminal to its corresponding mobile network session through the user packet information.

Specifically, the access gateway can send the user message information to the access resource management network element (ACRF), and when the access resource management network element receives the user message information, the access resource management network element can send the user message information to the access resource management network element The gateway sends mapping information, where the mapping information includes a mapping rule, and the mapping information may be obtained by the access resource management network element performing correlation calculation according to the user packet information from the terminal. Afterwards, when the access gateway receives the mapping information, the access gateway may map the access network session corresponding to the terminal to its corresponding mobile network session according to the mapping rule included in the mapping information.

Optionally, the access resource management network element may also generate a mapping relationship between an access network session and a mobile network session, and send the mapping relationship and the mapping rule to the access point (AN) and the access gateway (AGF) , the access point and the access gateway can store the mapping rule and the mapping relationship locally. When the access gateway receives the uplink data message from the terminal, it can forward the uplink data message from the terminal to the corresponding mobile network session according to the mapping relationship and mapping rules; correspondingly, when the access gateway receives the message from When the downlink data message is sent from the user plane network element of the core network, the downlink data message from the user plane network element can also be forwarded to the corresponding access network session according to the mapping relationship and the mapping rule.

For example, as shown in Figure 3, assuming that the VLAN ID reported by the terminal in the user message information is VLAN1 (or the VLAN ID obtained from the AAA server is VLAN1), the number of VLAN tags (tag) can be 0 (ie untag) , 1 (ie c-tag), or 2 (ie s-tag+c-tag). The access gateway receives the VLAN ID in the uplink data message sent by the access point as VLAN2, and VLAN2 is the VLAN ID after the access point (AN) replaces or modifies the VLAN ID in the uplink data message sent by the terminal. The number of tags (tag) can be 1 (that is, c-tag'), or 2 (that is, s-tag'+c-tag'), and the mapping rule corresponding to the access gateway is that the uplink data packet of VLAN2 corresponds to the mobile Network session PDU1, and replace VLAN2 with VLAN1 when forwarding uplink data packets to the mobile network. Specifically, for the uplink data message, the access gateway can query the mapping rule according to VLAN2, determine its corresponding mobile network session, replace VLAN2 in the uplink data message with VLAN1, and then replace the replaced uplink The data message is forwarded to the corresponding mobile network session (for example, PDU1).

Exemplarily, the mapping rule between a fixed session and a mobile network session may be as shown in Table 1 below. In Table 1, the number of VLAN identifiers or VLAN tags (tags) included in the uplink data message sent by the terminal is 0 respectively. , 1 or 2, the mapping rule for mapping an access network session to a corresponding mobile network session will be described with an example.

Table 1

It should be noted that in the above Table 1, when 1:1 in the session mapping condition means that different users of the same service on the session side of the access network use different VLAN information (VLAN identifiers) for identification; N:1 means that the access network Different users of the same service on the session side use the same VLAN information (VLAN identifier) for identification. At this time, only VLAN information can not be used to distinguish different sessions when performing session mapping. Therefore, mapping can be performed through VLAN information + MAC. Table 1 MAC refers to the MAC address of the terminal.

In addition, the mapping rule for mapping a mobile network session to an access network session can be opposite to the operation in Table 1 above. For example, taking the VLAN ID and session mapping condition as 1:1 as an example, when the AGF receives the When GTP-U encapsulates a data message, the AGF policy is: perform GTP-U decapsulation on the data message, and use the VLAN ID of the access network session to perform access network session encapsulation; the AN policy is: decapsulate the data message The VLAN ID of the access network session is converted into the VLAN ID of the user. For specific mapping rules for mapping a mobile network session to an access network session, reference may be made to the information in Table 1 above, which will not be repeated in this embodiment of the present application.

Further, when the access network session information includes indication information of an IP address acquisition method, after receiving the first message, the access gateway may enable an address resolution protocol (address resolution protocol, ARP) agent (agent) function, use Enable the DHCP snooping function, and/or enable other functions related to user services (for example, packet rate limit, etc.), etc. Wherein, enabling the ARP proxy function on the access gateway may mean that when the access gateway receives the terminal's request for ARP information of any address, the ARP proxy responds to the MAC address of the access gateway on its behalf. Enabling the DHCP monitoring function on the access gateway may refer to enabling the access gateway to enable the function of monitoring DHCP messages.

Correspondingly, when the access network session information in the first message includes indication information of an IP address acquisition method, after receiving the first message, the access gateway may also send a second message to the access resource management network element. The second message includes the indication information of the IP address acquisition method, so that when the access resource management network element receives the second message, the access resource management network element instructs the access point (AN) to enable the corresponding function. Optionally, the second message further includes the MAC address of the terminal, so that the access resource management network element obtains the MAC address of the terminal from the second message.

Further, when the session information of the access network includes the IP address of the terminal and/or the indication information of the way to obtain the IP address, and the first message also includes the MAC address of the terminal, see FIG. 4, before the access gateway performs session mapping (that is, before performing S203), the method further includes: S203a.

S203a: The access gateway verifies the data packet and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal.

Wherein, the data message may be an uplink data message sent by the terminal to the access gateway, or may be a downlink data message, which is mainly used here to verify the uplink data message. The uplink data packet may include the terminal's IP address and the terminal's MAC address. When the access gateway receives the uplink data packet sent by the terminal, the access gateway can verify that the IP address of the terminal included in the first message and the MAC address of the terminal are the same as the terminal's MAC address included in the uplink data packet. Check whether the IP address of the terminal is consistent with the MAC address of the terminal. If the consistency check passes, the access gateway can send the uplink data message to the core network; if the inconsistent check fails, the access gateway can discard the uplink data message.

The ARP request message may be a message sent by the terminal to the access gateway for requesting the MAC address of the access gateway. Similarly, the ARP request message may include the terminal's IP address and the terminal's MAC address, and when the access gateway receives the ARP request message sent by the terminal, the access gateway may verify the terminal's address included in the first message. Whether the IP address of the terminal and the MAC address of the terminal are consistent with the IP address of the terminal included in the ARP request message and the MAC address of the terminal. If the consistency check is passed, the access gateway can respond to the ARP request message, that is, send the MAC address of the access gateway to the terminal; if the inconsistent check fails, the access gateway does not respond to the ARP request message.

It should be noted that, when the NAS message sent by the access gateway to the terminal includes the MAC address of the access gateway, the terminal may not send the ARP request message to the access gateway.

Optionally, the access gateway may also send to the terminal an ARP request message for requesting the MAC address of the terminal, and when the NAS message sent by the access gateway to the terminal also includes the MAC address of the access gateway, the terminal When receiving the ARP request message, the terminal may discard the ARP request message, that is, the terminal may not respond to the ARP request message.

Further, when the session information of the access network includes user message information from the terminal, the core network device can obtain the user message information in the following two ways, referring to FIG. 2, referring to FIG. 5, the method further includes: S200a or S200b.

S200a: The core network device receives a session creation request message sent by the terminal, where the session creation request message includes user packet information.

The terminal may send a session creation request message to the core network device through the access gateway, and carry user message information in the session creation request message, so that the core network device receives the user message information. For example, taking the converged network shown in Figure 1 as an example, the terminal can send a PDU session creation request to the AGF, and the PDU session creation request carries user packet information, and the AGF sends the PDU session creation request to the SMF when receiving the PDU session creation request. PDU session request information, the SMF parses the received PDU session request information to obtain user message information.

S200b: The core network device acquires user message information from the authentication, authorization and accounting server.

Among them, authentication authorization account (authentication authorization account, AAA) server (server) is a server capable of processing user access requests, providing verification authorization and account services, the main purpose is to manage user access to the network server, and provide access to users with access rights. Serve. When the core network device needs to obtain user information, the core network device can directly or indirectly send a request to the AAA server; correspondingly, when the AAA server receives the request, the AAA server sends the user message information to the core through the corresponding path network equipment, so that the core network equipment can obtain user packet information.

For example, taking the converged network shown in Figure 1 as an example, the core network device is an SMF. Specifically, SMF can directly send a request to the AAA server, or indirectly send a request to the AAA server through the UPF; when the AAA server receives the request directly sent by the SMF, it can directly send the user message information to the SMF, and when the AAA server receives the SMF When the request is sent indirectly, the AAA server can send the user packet information to the SMF through the UPF, so that the SMF can obtain the user packet information.

For ease of understanding, the converged network shown in Figure 1 is taken as an example below. The first message sent by the core network equipment to the access network includes the IP address of the terminal, information indicating how to obtain the IP address, and user message information. For example, the core network device is an SMF, the access gateway is an AGF, the terminal is an RG, the first message is an N2 session creation request, and the access network session information is a fixed network session information.

Example 1: The first message includes the IP address of the terminal. Referring to FIG. 6 , the method may include the following steps.

S601: The RG sends a PDU session creation request. Optionally, the PDU session establishment request includes the MAC address used by the terminal.

S602: The AGF sends a PDU session creation request to the SMF.

Optionally, the PDU session establishment request includes the MAC address used by the terminal.

S603: Execute the existing PDU session creation process.

S604: The SMF sends an N2 session establishment request to the AGF, and the request includes the IP address of the terminal. Optionally, the MAC address used by the terminal is also included. Further, the request carries a NAS message delivered to the RG; optionally, the NAS message includes the MAC address used by the AGF (the MAC address of the AGF can be obtained through configuration, or sent to the core network by the AGF in other messages control surface).

S605: The AGF saves the IP address of the terminal.

Optionally, save the MAC address used by the terminal (executed when S604 sends the MAC address of the terminal). Further, in the case of saving the MAC address used by the terminal, the AGF may subsequently discard the ARP request message from the terminal in the session or check the ARP request message sent by the terminal.

S606: Create a fixed network side session.

The mapping information between the fixed network session and the PDU session can be generated on the AGF by mapping the IP address of the terminal to the PDU session, or by using user message information for mapping.

S607: The AGF sends a session creation complete message to the RG.

Optionally, the session creation complete message includes the MAC address of the AGF.

S608: The RG saves the MAC address of the AGF (executed when the MAC address of the AGF is sent in S607). In the case that the RG saves the MAC address of the AGF, the RG can use the MAC address of the AGF as the destination MAC address of the uplink data message, and can obtain the MAC address of the AGF without using an ARP request message.

S609: Verify the uplink and downlink data.

Specifically, the AN and/or the AGF may check whether the IP address of the terminal in the uplink and downlink data packets is consistent with the IP address assigned to the terminal.

S610-S611: When the AGF receives the downlink data message, it decapsulates the GTP-U packet, adds an Ethernet header to the message, uses the MAC address of the terminal saved in S605 as the destination MAC address of the message, and uses the source MAC address of the AGF Therefore, the access gateway can obtain the MAC address of the RG without using an ARP request message, thereby reducing the signaling interaction between the AGF and the RG.

Example 2: The first message includes indication information of the way to obtain the IP address. Referring to FIG. 7, the method may include:

S701-S703: the same as S601-S603 in Example 1.

S704: The SMF sends an N2 session creation request to the AGF.

Wherein, the request includes the indication information, indicating that the way for the terminal to obtain the IP address may be: obtain through DHCP, DHCPv6, stateless address allocation protocol, or other protocols. Optionally, the request also includes the MAC address of the terminal.

S705: The AGF enables the ARP proxy function.

Wherein, the AGF can not only enable the ARP proxy function, but the AGF can also enable the DHCP monitoring function and other functions, and this step can also be performed by S709.

S706: The AGF sends a session creation request to the ACRF, and the request includes the indication information. Optionally, the request also includes the MAC address of the terminal.

S707: The ACRF creates a session and obtains mapping information, for example, creating it according to user message information.

S708: The ACRF sends mapping information, such as VLAN information, to the AGF. Optionally, send relevant policies to the AGF, such as enabling ARP proxy, DHCP proxy, etc.

S709: The AGF enables the ARP proxy function.

Wherein, the AGF can not only enable the ARP proxy function, but also enable the DHCP monitoring function and other functions. This step is the same as that performed in S705.

S710: The ACRF sends mapping information and related policies to the AN. S708 and S708 can be in no particular order.

S711: The AGF sends a session creation complete message to the RG.

S712-S713: The RG and the core network complete the DHCP process. During this process, the AGF forwards the user's DHCP message to the N3PDU session, saves the terminal's MAC address, and monitors to obtain the user's IP address. Furthermore, when the AGF forwards the downlink data message to the RG, it uses the saved MAC address of the terminal as the destination MAC address in the message header, and uses the MAC address of the AGF as the source MAC address.

S714-S715: The RG acquires the MAC address of the AGF through the ARP request message, and uses it as the destination MAC address for subsequent uplink data packets.

S716-S717: For downlink data packets, the AGF decapsulates the GTP-U and adds an Ethernet header to the packets.

Wherein, the AGF uses the MAC address of the terminal saved in S712 (or the MAC address of the terminal obtained through the ARP request message) as the destination MAC address, and the source MAC address may use the MAC address of the AGF.

Example 3: The first message includes user message information. Referring to FIG. 8, the method may include:

S801: The RG sends a session creation request to the SMF through the AGF, and the request includes user message information, such as a VLAN ID, or the number of VLAN tags (can be 0, 1, 2, no specific VLAN tag is specified). Optionally, the request may also include the MAC address used by the terminal, or a MAC-VLAN table (that is, combination information of the terminal's MAC address and the VLAN ID).

S802: Execute an existing session creation process.

S803: The SMF sends an instruction that the session creation is completed to the AGF.

Wherein, the instruction includes the user packet information in S801, that is, the user packet information from the RG. In particular, if the MAC address of the terminal is not included in S801, the SMF may obtain the MAC address of the terminal from other network elements in S802, and may send it to the AGF in this step. For example, SMF is obtained through the AAA server.

S804: The AGF sends a session establishment request to the ACRF, where the request includes user packet information.

S805-S807: ACRF creates mapping rules and mapping relationships corresponding to sessions on the fixed network side, and sends them to the AGF and AN. For example, for a specific mapping rule generation method, refer to the information in Table 1 above.

S806a: The AGF stores the mapping rules of the fixed network session and the mobile network session. Optionally, the conversion rule of the VLAN information is saved.

S808: The AGF performs VLAN information conversion on the uplink and downlink data packets and sends them. Specifically, the uplink and downlink data packets may refer to an uplink data packet and a downlink data packet. When the AGF receives an uplink data packet from the fixed network side, it forwards the packet to the PDU session corresponding to the session according to the mapping rule; When receiving the data message from the PDU session of the UPF, forward it to the corresponding fixed network session according to the mapping rules.

Alternatively, in the above-mentioned FIG. 8, the steps from S803 to S808 may be replaced by S809 to S811.

S809: AGF sends N4 session creation request to UPF, and the session creation request includes user message information from the terminal, such as VLAN identification, or the number of VLAN tags (can be 0, 1, 2, no specific VLAN tag is specified) . Optionally, the request may also include the MAC address used by the terminal, or a MAC-VLAN table (that is, combination information of the terminal's MAC address and the VLAN ID).

S810: The UPF stores the mapping rules of the fixed network session and the mobile network session. Optionally, the conversion rule of the VLAN information is saved.

S811: The AGF performs VLAN information conversion on the uplink and downlink data packets and sends them. Specifically, the uplink and downlink data packets may refer to an uplink data packet and a downlink data packet. When the AGF receives an uplink data packet from the fixed network side, it forwards the packet to the PDU session corresponding to the session according to the mapping rule; When receiving the data message from the PDU session of the UPF, forward it to the corresponding fixed network session according to the mapping rules.

In this embodiment of the application, the access gateway can receive the access network session information sent by the core network device, the access network session information includes the terminal's IP address, the indication information of the IP address acquisition method, and the user message from the terminal at least one of the information, and map the access network session and the mobile network session corresponding to the terminal according to the access network session information, so as to realize the mapping between the access network session and the mobile network session. At the same time, in this method, network elements on the access network side, such as access gateways and access points, can also obtain the IP address of the terminal to enable specific services, thereby improving the performance of the communication system.

The foregoing mainly introduces the solution provided by the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that each network element, such as an access gateway, a core network device, and a terminal, etc., includes a corresponding hardware structure and/or software module for performing each function in order to realize the above functions. Those skilled in the art should easily realize that the present application can be implemented in the form of hardware or a combination of hardware and computer software in combination with the units and algorithm steps of each example described in the embodiments disclosed herein. Whether a certain function is executed by hardware or computer software drives hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

The embodiment of the present application can divide the functional modules of the access gateway, the core network device, and the terminal according to the above-mentioned method examples. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. It should be noted that the division of modules in the embodiment of the present application is schematic, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module by corresponding function:

In the case of using an integrated unit, FIG. 9 shows a possible structural diagram of the information processing device involved in the above embodiment. The information processing device may be an access gateway or a built-in chip of the access gateway, and the information processing device includes: a receiving unit 901 and a processing unit 902 . Wherein, the receiving unit 901 is used to support the information processing device to execute S202, step 604, and/or step 600a in the method embodiment; the processing unit 902 supports the information processing device to execute S203, S203a, and/or A step of discarding the ARP request message sent by the terminal. Optionally, the information processing device may further include a sending unit 903, and the sending unit 903 is configured to perform the step of the information processing device sending the second message to the access resource management network element, or send the user message to the access resource management network element. Steps for text information. All relevant content of the steps involved in the above method embodiments can be referred to the function descriptions of the corresponding functional modules, and will not be repeated here.

In the case of using an integrated unit, FIG. 10 shows a possible structural diagram of the information processing device involved in the above-mentioned embodiment. The information processing device may be a core network device or a built-in chip of the core network device, and the information processing device includes: a sending unit 1001 and a receiving unit 1002 . Wherein, the sending unit 1001 is used to support the information processing device to execute S201 in the method embodiment; the receiving unit 1002 supports the information processing device to execute S200a or S200b in the method embodiment. Optionally, the information processing apparatus may further include a processing unit 1003, and the processing unit 1003 is configured to execute the step of the information processing apparatus generating the first message, and the like. All relevant content of the steps involved in the above method embodiments can be referred to the function descriptions of the corresponding functional modules, and will not be repeated here.

In the case of using an integrated unit, FIG. 11 shows a possible structural diagram of the information processing device involved in the above embodiment. The information processing device may be a terminal or a chip built into the terminal, and the information processing device includes: a sending unit 1101 . Wherein, the sending unit 1101 is used to support the information processing apparatus to execute the step of sending the user message information to the core network device in the method embodiment. Optionally, the information processing device may also include a receiving unit 1102 and a processing unit 1103; the receiving unit 1102 supports the information processing device in performing the step of receiving the MAC address of the access gateway in the method embodiment, and the processing unit 1103 is used to perform the information processing The processing device executes the step of discarding the ARP request message sent by the access gateway in the method embodiment. All relevant content of the steps involved in the above method embodiments can be referred to the function descriptions of the corresponding functional modules, and will not be repeated here.

On the basis of hardware implementation, the processing unit in this application can be the processor of the information processing device, the sending unit can be the transmitter of the information processing device, the receiving unit can be the receiver of the information processing device, and the transmitter can usually communicate with The receivers are integrated together as a transceiver, and the specific transceiver may also be called a communication interface.

FIG. 12 is a schematic diagram of a possible logical structure of an information processing device involved in the above-mentioned embodiments provided by an embodiment of the present application. The information processing device includes: a processor 1202 and a communication interface 1203 . The processor 1202 is used to control and manage the actions of the information processing device.

Wherein, the information processing device may be a product form of an access gateway or a built-in chip of an access gateway, or the information processing device may be a product form of a core network device or a chip built in a core network device, or the information processing A device is a product form of a terminal or a chip built into a terminal. Specifically, when the information processing device is in the product form of an access gateway or a built-in chip of the access gateway, the processor 1202 is used to support the information processing device to perform S203 and S203a in the method embodiment, and to discard the ARP request sent by the terminal. message, and/or other steps for the access gateway described herein. When the information processing device is a product form of a core network device or a chip built into the core network device, the processor 1202 is used to support the information processing device to execute the step of generating the first message in the method embodiment, and/or use the Other steps described for the core network device. When the information processing device is in the product form of a terminal or a chip built into the terminal, the processor 1402 is used to support the information processing device to execute the step of discarding the ARP request message sent by the access gateway in the method embodiment, and/or to use the Additional steps for the terminal as described.

In addition, the information processing device may further include a memory 1201 and a bus 1204, the processor 1202, the communication interface 1203, and the memory 1201 are connected to each other through the bus 1204; the communication interface 1203 is used to support the information processing device to communicate; the memory 1201 is used to store the Program codes and data for information processing devices.

In the information processing device shown in FIG. 12, the processor 1202 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. The bus 1204 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus or the like. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, only one thick line is used in FIG. 12 , but it does not mean that there is only one bus or one type of bus.

In another embodiment of the present application, a readable storage medium is also provided, and computer-executable instructions are stored in the readable storage medium. When a device (such as a single-chip microcomputer, chip, etc.) or a processor executes the The step of accessing the gateway in the information processing method provided. The above-mentioned readable storage medium may include various mediums capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

In another embodiment of the present application, a readable storage medium is also provided, and computer-executable instructions are stored in the readable storage medium. When a device (such as a single-chip microcomputer, chip, etc.) or a processor executes the The steps of the core network equipment in the information processing method provided. The above-mentioned readable storage medium may include various mediums capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

In another embodiment of the present application, a readable storage medium is also provided, and computer-executable instructions are stored in the readable storage medium. When a device (such as a single-chip microcomputer, chip, etc.) or a processor executes the The step of terminal in the information processing method provided. The above-mentioned readable storage medium may include various mediums capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.

In another embodiment of the present application, a computer program product is also provided, the computer program product includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium; The computer-executable instructions are read from the storage medium, and at least one processor executes the computer-executable instructions to enable the device to access the gateway in the information processing method provided by the method embodiment above.

In another embodiment of the present application, a computer program product is also provided, the computer program product includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium; Reading the storage medium reads the computer-executable instructions, and at least one processor executes the computer-executable instructions so that the device implements the steps of the core network device in the provided information processing method in the above method.

In another embodiment of the present application, a computer program product is also provided, the computer program product includes computer-executable instructions, and the computer-executable instructions are stored in a computer-readable storage medium; Reading the storage medium reads the computer-executable instructions, and at least one processor executes the computer-executable instructions to make the device perform the terminal steps in the provided information processing method in the above method.

In another embodiment of the present application, a communication system is also provided, and the communication system includes an access gateway, a core network device, and a terminal. Wherein, the access gateway may be the access gateway provided in the above-mentioned device embodiment, and is used to support the access gateway to perform the steps of accessing the gateway in the method embodiment; and/or, the core network equipment is provided in the above-mentioned device embodiment The core network device is used to support the core network device to execute the steps of the core network device in the method embodiment; and/or, the terminal is the terminal provided in the above device embodiment, used to support the terminal to execute the steps of the terminal in the method embodiment.

In this embodiment of the application, the access gateway can receive the access network session information sent by the core network device, the access network session information includes the terminal's IP address, the indication information of the IP address acquisition method, and the information in the user packet information. At least one item, and according to the access network session information, the access network session and the mobile network session corresponding to the terminal are mapped, so that the mapping between the access network session and the mobile network session can be realized. At the same time, in this method, network elements on the access network side, such as access gateways and access points, can also obtain the IP address of the terminal to enable specific services, thereby improving the performance of the communication system.

Finally, it should be noted that: the above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto, and any changes or replacements within the technical scope disclosed in the application shall be covered by this application. within the scope of the application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (28)

1. An information processing method, characterized in that the method comprises: The access gateway receives the first message sent by the core network device, the first message includes access network session information, and the access network session information includes at least one of the following information: the terminal's Internet Protocol IP address, IP address Instruction information of the acquisition method, user message information from the terminal, the user message information includes at least one of the following: a virtual local area network VLAN identifier, the number of VLAN tags, the terminal's media access control MAC address, VLAN Combination information of the identifier and the MAC address of the terminal; The access gateway maps the access network session and the mobile network session corresponding to the terminal according to the access network session information. 2. The method according to claim 1, wherein when the access network session information includes the IP address of the terminal and/or information indicating how to obtain the IP address, the first message also includes Including the MAC address of the terminal. 3. The method according to claim 1 or 2, wherein when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, the The NAS message includes the MAC address of the access gateway. 4. The method according to claim 3, wherein the MAC address of the access gateway is used as a destination MAC address of the uplink data message sent by the terminal. 5. The method according to claim 2, characterized in that the method further comprises: The access gateway verifies the data message and/or the address resolution protocol ARP request message according to the IP address of the terminal and the MAC address of the terminal. 6. The method according to claim 3, further comprising: The access gateway discards the address resolution protocol ARP request message from the terminal. 7. The method according to claim 1, wherein when the access network session information includes indication information of the IP address acquisition method, the method further comprises: The access gateway sends a second message to the access resource management network element, where the second message includes indication information of the IP address acquisition manner. 8. The method according to claim 7, wherein the second message further includes the MAC address of the terminal. 9. The method according to claim 1, wherein when the access network session information includes the user packet information, the access gateway sends the terminal to the terminal according to the access network session information Corresponding access network sessions and mobile network sessions are mapped, including: The access gateway sends the user packet information to an access resource management network element; The access gateway receives the mapping information sent by the access resource management network element, where the mapping information includes a mapping rule; The access gateway maps the access network session and the mobile network session corresponding to the terminal according to the mapping rule. 10. An information processing method, characterized in that the method comprises: The core network device receives the session request message from the terminal; The core network device sends a first message to the access gateway according to the session request message, the first message includes access network session information, and the access network session information includes at least one of the following information: Internet protocol IP address, indication information of the way to obtain the IP address, and user message information from the terminal, where the user message information includes at least one of the following: a virtual local area network VLAN ID, the number of VLAN tags, and the terminal's Combination information of the media access control MAC address, the VLAN ID, and the MAC address of the terminal. 11. The method according to claim 10, wherein when the access network session information includes the IP address of the terminal and/or information indicating how to obtain the IP address, the first message also includes Including the MAC address of the terminal. 12. The method according to claim 10 or 11, wherein when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, the The NAS message includes the MAC address of the access gateway. 13. The method of claim 10, wherein: The session request message includes the user packet information; or, The method further includes: the core network device acquiring the user packet information from an authentication, authorization and accounting server. 14. An information processing device, characterized in that, as an access gateway, the device includes: The receiving unit is configured to receive a first message sent by a core network device, the first message includes access network session information, and the access network session information includes at least one of the following information: the terminal's Internet Protocol IP address, Instruction information of an IP address acquisition method, and user packet information from the terminal, where the user packet information includes at least one of the following: a virtual local area network VLAN ID, the number of VLAN tags, and a media access control MAC address of the terminal . Combination information of the VLAN identifier and the MAC address of the terminal; A processing unit, configured to map the access network session and the mobile network session corresponding to the terminal according to the access network session information. 15. The device according to claim 14, wherein when the access network session information includes the IP address of the terminal and/or information indicating how to obtain the IP address, the first message also includes Including the MAC address of the terminal. 16. The device according to claim 14 or 15, wherein when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, the The NAS message includes the MAC address of the access gateway. 17. The device according to claim 16, wherein the MAC address of the access gateway is used as a destination MAC address of the uplink data packet sent by the terminal. 18. The device according to claim 15, wherein the processing unit is further configured to: According to the IP address of the terminal and the MAC address of the terminal, the data message and/or the address resolution protocol ARP request message are verified. 19. The device according to claim 15, wherein the processing unit is further configured to: According to discarding the address resolution protocol ARP request message from the terminal. 20. The device according to claim 14, wherein when the access network session information includes indication information of the IP address acquisition method, the device further comprises: A sending unit, configured to send a second message to an access resource management network element, where the second message includes indication information of the IP address acquisition manner. 21. The apparatus according to claim 20, wherein the second message further includes the MAC address of the terminal. 22. The device according to claim 14, wherein when the access network session information includes the user packet information, the device further comprises a sending unit: The sending unit is configured to send the user packet information to an access resource management network element; The receiving unit is further configured to receive mapping information sent by the access resource management network element, where the mapping information includes mapping rules; The processing unit is further configured to map the access network session and the mobile network session corresponding to the terminal according to the mapping rule. 23. An information processing device, characterized in that, as a core network device, the device includes: a receiving unit, configured to receive a session request message from a terminal; A sending unit, configured to send a first message to the access gateway according to the session request message, the first message includes access network session information, and the access network session information includes at least one of the following information: the The terminal's Internet Protocol IP address, information indicating how to obtain the IP address, and user packet information from the terminal, where the user packet information includes at least one of the following: a virtual local area network VLAN ID, the number of VLAN tags, the Combination information of the medium access control MAC address of the terminal, the VLAN identifier and the MAC address of the terminal. 24. The device according to claim 23, wherein when the access network session information includes the IP address of the terminal and/or information indicating how to obtain the IP address, the first message also includes Including the MAC address of the terminal. 25. The device according to claim 23 or 24, wherein when the access network session information includes the IP address of the terminal, the first message further includes a non-access stratum NAS message, the The NAS message includes the MAC address of the access gateway. 26. The device of claim 23, wherein: The session request message includes the user packet information; or, The receiving unit is further configured to obtain the user packet information from the authentication, authorization and accounting server. 27. A computer-readable storage medium, wherein a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed, any one of claims 1-9 is realized. The information processing method, or implement the information processing method according to any one of claims 10-13. 28. A computer program product, characterized in that the computer program product includes a computer program or instruction, and when the computer program or instruction is executed, the information processing method according to any one of claims 1-9 is realized , or realize the information processing method according to any one of claims 10-13.