CN110417840B

CN110417840B - Information processing method and device

Info

Publication number: CN110417840B
Application number: CN201810401773.9A
Authority: CN
Inventors: 李汉成; 周汉; 于游洋
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2020-10-09
Anticipated expiration: 2038-04-28
Also published as: WO2019205952A1; CN110417840A

Abstract

The application relates to the technical field of communication, in particular to an information processing method and device, which are used for realizing mapping between an access network session and a mobile network session, and the method comprises the following steps: an access gateway receives a first message sent by a core network device, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: virtual local area network VLAN identification, the number of VLAN tags, a Media Access Control (MAC) address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal; and 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

Information processing method and device

Technical Field

The embodiment of the application relates to the technical field of communication, in particular to an information processing method and device.

Background

Many services provided by the fixed network and the mobile network are basically consistent, but the mobile network and the fixed network are two independent service networks, so that the operation and maintenance cost is high, and when a new service is developed, the two networks must be upgraded for the same kind of service respectively, so that the new service providing cost is high. After the fixed network and the mobile network are converged, an integral network is formed, the operation and maintenance cost is relatively low, the development of services does not need to upgrade the fixed network and the mobile network respectively, and services can be provided for various users at the same time only by upgrading a unified service platform once, so that the convergence of the fixed network and the mobile network is a necessary trend of network development.

Currently, in a fixed-mobile convergence network, an access network generally includes an access network element of a fixed network, and a core network generally includes a core network element of a mobile network, where data is transmitted using a fixed network session, and data is transmitted using a mobile network session. In the prior art, how to create the session in the fixed-mobile convergence network is not involved.

Disclosure of Invention

The embodiment of the application provides an information processing method and device, which are used for realizing mapping between an access network session and a mobile network session.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an information processing method is provided, and the method includes: the access gateway receives a first message sent by the core network device, where the first message includes access network session information (where the first message may be an N2 session creation request message, the access network may be an access network of a fixed network or an access network that transports data through ethernet encapsulation, etc.), and the access network session information includes at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification 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 (for example, mapping the access network session corresponding to the terminal to the mobile network session, or mapping the mobile network session corresponding to the terminal to the access network session). In the technical scheme, 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 an IP address of the terminal and/or indication information of an IP address obtaining manner, the first message further includes a MAC address of the terminal. In the possible implementation manner, the MAC address of the terminal is carried by the first message, so that the access gateway does not need to acquire the MAC address by using 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 an IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes a MAC address of the access gateway. In the possible implementation manner, the NAS message carries the MAC address of the access gateway and is sent to the terminal, so that the terminal does not need to acquire the MAC address through other signaling, and signaling interaction between network elements is reduced. Further, when the terminal sends the uplink data packet, the MAC address of the access gateway carried in the NAS message may be directly used as the destination MAC address of the uplink data packet.

In a possible implementation manner of the first aspect, the method further includes: the access gateway checks the data message and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal. In the possible implementation manner, the data message and/or the ARP request message are verified, so that the security of data transmission and related information can be ensured, and the data message may be an uplink data message.

In a possible implementation manner of the first aspect, the method further includes: the access gateway discards the ARP request message from the terminal. In the possible implementation manner, when the terminal has acquired the MAC address of the access gateway in another manner, the access gateway may discard the ARP request message sent by the terminal, so that signaling interaction between network elements may be reduced.

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

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

In a possible implementation manner of the first aspect, when the access network session information includes user packet information, the mapping, by the access gateway, of the access network session and the mobile network session corresponding to the terminal according to the access network session information includes: the access gateway sends user message information to an access resource management network element; the access gateway receives mapping information sent by an access resource management network element, wherein the mapping information comprises a mapping rule; and the access gateway maps the access network session and the mobile network session corresponding to the terminal according to the mapping rule. In the possible implementation manner, when the access network is a fixed network, the access gateway may obtain the mapping rule according to the user message information, and further implement mapping between the access network session and the mobile network session according to the mapping rule.

In a second aspect, an information processing method is provided, the method including: the core network equipment receives a session request message from a terminal; the core network equipment sends a first message to the access gateway, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification 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 implement 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 perform mapping according to different information, thereby improving performance of the communication system.

In a possible implementation manner of the second aspect, when the access network session information includes an IP address of the terminal and/or indication information of an IP address obtaining manner, the first message further includes a MAC address of the terminal. In the possible implementation manner, the MAC address of the terminal is carried by the first message, so that the access gateway does not need to acquire the MAC address by using other signaling, and signaling interaction between network elements is reduced.

In a possible implementation manner of the second aspect, when the access network session information includes an IP address of the terminal, the first message further includes a non-access stratum, NAS, message, and the NAS message includes a MAC address of the access gateway. In the possible implementation manner, the NAS message carries the MAC address of the access gateway and is sent to the terminal, so that the terminal does not need to acquire the MAC address through other signaling, and signaling interaction between network elements is reduced.

In a possible implementation manner of the second aspect, the session request message includes user message information; or the core network equipment acquires the user message information from the authentication authorization charging server. In the possible implementation manner, the diversity and flexibility of the core network equipment for acquiring the user message are improved.

In a third aspect, an information processing method is provided, including: the terminal sends user message information to the core network equipment, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal. In the possible implementation manner, the terminal sends the user message information to the core network device, so that the core network device sends the user message information to the access gateway, and the access gateway can realize mapping between the access network session and the mobile network session according to the user message information when receiving the user message information.

In a possible implementation manner of the third aspect, the method further includes: the terminal receives the MAC address of the access gateway sent by the core network equipment, and the MAC address of the access gateway can be carried by NAS information. In the 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 acquire the MAC address through other signaling, and signaling interaction between network elements is reduced. Furthermore, when the terminal sends the uplink data packet, the terminal may use the MAC address carried in the NAS message as the destination MAC address of the uplink data packet.

In a possible implementation manner of the third aspect, the method further includes: the terminal discards the address resolution protocol, ARP, request message from the access gateway. In the possible implementation manner, when the access gateway has acquired the MAC address of the terminal in another manner, the terminal may discard the ARP request message sent by the access gateway, so that signaling interaction between network elements may be reduced.

In a fourth aspect, an information processing apparatus is provided, which is an access gateway and is configured to implement the functions of the information processing method provided in any one of the possible implementation manners of the first aspect to the first aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In a possible implementation manner of the fourth aspect, the information processing apparatus includes a structure including a processor, a memory, a communication interface, and a bus, where the processor, the memory, and the communication interface are connected by the bus, the memory is used for storing program codes, and the communication interface is used for supporting the information processing apparatus to perform communication, and when the program codes are executed by the processor, the information processing apparatus is caused to perform the following steps: receiving a first message sent by a core network device, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal; and mapping the access network session and the mobile network session corresponding to the terminal according to the access network session information.

In a possible implementation manner of the fourth aspect, when the access network session information includes an IP address of the terminal and/or indication information of an IP address obtaining manner, the first message further includes a MAC address of the terminal.

In a possible implementation manner of the fourth aspect, when the access network session information includes an IP address of the terminal, the first message further includes a non-access stratum NAS message, and the NAS message includes a 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 a destination MAC address for the terminal to send the uplink data packet.

In one possible implementation manner of the fourth aspect, the information processing apparatus further performs the following steps: and checking the data message and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal.

In one possible implementation manner of the fourth aspect, the information processing apparatus further performs the following steps: 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 manner, the information processing apparatus further performs the following steps: and sending a second message to the access resource management network element, wherein the second message comprises the indication information of the IP address acquisition mode.

In a possible implementation manner of the fourth aspect, the second message further includes a 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 apparatus further performs the following steps: sending user message information from a terminal to an access resource management network element; receiving mapping information sent by an access resource management network element, wherein the mapping information comprises a mapping rule; and mapping the access network session and the mobile network session corresponding to the terminal according to the mapping rule.

In a fifth aspect, an information processing apparatus is provided, which is used as a core network device to implement the functions of the information processing method provided in any one of the possible implementations of the second aspect to the second aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In a possible implementation manner of the fifth aspect, the information processing apparatus includes a structure including a processor, a memory, a communication interface, and a bus, where the processor, the memory, and the communication interface are connected by the bus, the memory is used for storing program codes, and the communication interface is used for supporting the information processing apparatus to perform communication, and when the program codes are executed by the processor, the information processing apparatus is caused to perform the following steps: receiving a session request message from a terminal, and sending a first message to an access gateway, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal.

In a possible implementation manner of the fifth aspect, when the access network session information includes an IP address of the terminal and/or indication information of an IP address obtaining manner, the first message further includes a MAC address of the terminal.

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

In a possible implementation manner of the fifth aspect, the session request message includes user message information; alternatively, the information processing apparatus further executes the steps of: and obtaining the user message information from the authentication authorization charging server.

In a sixth aspect, an information processing apparatus is provided, which is used as a terminal for implementing the functions of the information processing method provided in any one of the possible implementations of the third aspect to the third aspect. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In a possible implementation manner of the sixth aspect, the information processing apparatus includes a processor, a memory, a communication interface, and a bus, where the processor, the memory, and the communication interface are connected via the bus, the memory is used for storing program codes, and the communication interface is used for supporting the information processing apparatus to perform communication, and when the program codes are executed by the processor, the information processing apparatus is caused to perform the following steps: sending user message information to the core network equipment, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal.

In one possible implementation manner of the sixth aspect, the information processing apparatus further performs the steps of: and receiving the MAC address of the access gateway sent by the core network equipment, wherein the MAC address of the access gateway can be carried by the NAS message. Furthermore, when the information processing apparatus transmits an uplink data packet, the information processing apparatus may use the MAC address carried in the NAS message as the destination MAC address of the uplink data packet.

In one possible implementation manner of the sixth aspect, the information processing apparatus further performs the steps of: the address resolution protocol, ARP, request message from the access gateway is discarded.

A seventh aspect provides a computer-readable storage medium, in which a computer program or instructions are stored, and when the computer program or instructions are executed, the information processing method provided by the first aspect or any possible implementation manner of the first aspect is executed.

An eighth aspect provides a computer-readable storage medium, in which a computer program or instructions are stored, and when the computer program or instructions are executed, the information processing method provided by the second aspect or any one of the possible implementation manners of the second aspect is executed.

A ninth aspect provides a computer-readable storage medium, in which a computer program or instructions are stored, and when the computer program or instructions are executed, the information processing method provided by the third aspect or any one of the possible implementation manners of the third aspect is executed.

A tenth aspect provides a computer program product, which includes a computer program or instructions, and when the computer program or instructions are executed, the information processing method provided by the first aspect or any one of the possible implementation manners of the first aspect is executed.

In an eleventh aspect, a computer program product is provided, wherein the computer program product includes a computer program or instructions, and when the computer program or instructions are executed, the information processing method provided by the second aspect or any possible implementation manner of the second aspect is executed.

In a twelfth aspect, a computer program product is provided, wherein the computer program product includes a computer program or instructions, and when the computer program or instructions are executed, the information processing method provided by the third aspect or any possible implementation manner of the third aspect is executed.

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

It is understood that the apparatus, the computer storage medium, the computer program product, or the communication system of any of the information processing methods provided above are all configured to execute the corresponding methods provided above, and therefore, the beneficial effects achieved by the apparatus, the computer storage medium, the computer program product, or the communication system can refer to the beneficial effects in the corresponding methods provided above, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a fixed-mobile convergence network according to an embodiment of the present disclosure;

fig. 2 is a first flowchart illustrating an information processing method according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating VLAN information conversion according to an embodiment of the present disclosure;

fig. 4 is a second flowchart illustrating an information processing method according to an embodiment of the present application;

fig. 5 is a third schematic flowchart of an information processing method according to an embodiment of the present application;

fig. 6 is a fourth schematic flowchart of an information processing method according to an embodiment of the present application;

fig. 7 is a fifth flowchart illustrating an information processing method according to an embodiment of the present application;

fig. 8 is a sixth schematic flowchart of an information processing method according to an embodiment of the present application;

fig. 9 is a first schematic structural diagram of an information processing apparatus according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an information processing apparatus according to an embodiment of the present application.

Detailed Description

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. In the description of the present application, the term "plurality" means two or more than two unless otherwise specified. In addition, in the embodiments of the present application, the words "first", "second", and the like do not limit the number and the execution order.

The embodiment of the application can be applied to various fixed-mobile convergence networks or fixed-mobile convergence systems. For example: a convergence network of a fixed network and a global system for mobile communication (GSM) system, a convergence network of a fixed network and a Code Division Multiple Access (CDMA) system, a convergence network of a fixed network and a Wideband Code Division Multiple Access (WCDMA) system, a convergence network of a fixed network and a General Packet Radio Service (GPRS), a convergence network of a fixed network and a Long Term Evolution (LTE) system, a converged network of a fixed network and an LTE Frequency Division Duplex (FDD) system, a converged network of a fixed network and an LTE Time Division Duplex (TDD) system, a converged network of a fixed network and a Universal Mobile Telecommunications System (UMTS), a converged network of a fixed network and a 5G communication system, a converged network of a fixed network and a mobile communication system which is subsequently evolved, and the like. In this application, the fixed network may also be referred to as a fixed network for short.

The embodiment of the present application may also be applied to a communication system including other types of access networks and core networks, for example, the other types of access networks may be access networks that use ethernet encapsulation to transmit data, and the embodiment of the present application is also applicable.

The embodiment of the present application takes a converged network of a fixed network and a 5G mobile communication system as an example for description. As shown in fig. 1, the converged network includes a fixed network access network, a 5G core network, and a Data Network (DN) connected to the 5G core network. The fixed network access network may include AN access device, AN access point (AN), and AN Access Gateway Function (AGF) network element. The access device includes: a Residential Gateway (RG) or a fixed network terminal device. The AGF may include a control plane (AGF-CP) function and a user plane (AGF user plane, AGF-UP) function. The access device may specifically be a server, a router, a switch, a bridge, a computer, a user device, a terminal device, a Set Top Box (STB), and so on, and for convenience of description, the access device is collectively referred to as a terminal in the embodiments of the present application. For convenience of description, the embodiments of the present application are collectively referred to as an access point.

The 5G core network may include a Control Plane (CP) network element and a User Plane (UP) network element, where the CP network element may be configured to issue a packet forwarding policy, a QoS control policy, and the like to the user plane, and the UP network element may be configured to be responsible for forwarding of a packet data packet, QoS control, charging information, and the like. The CP network element may include: an access and mobility management function (AMF) network element, a Session Management Function (SMF) network element, an authentication service function (AUSF) network element, an Unified Data Management (UDM) network element, a Policy Control Function (PCF) network element, and an UP network element may include: a User Plane Function (UPF) network element.

The AMF can be used for being responsible for the access management function of the terminal; the SMF can be used to manage user Protocol Data Unit (PDU) session creation, deletion, etc., maintain PDU session context and user plane forwarding pipe information, etc.; the AUSF may be used for non-user authentication; the UDM may be used to manage user subscription information; the PCF may be responsible for generating policies for users to establish PDU sessions; the UPF may be used to provide user plane services for a user's PDU session, and is an interface gateway between the operator network and external networks.

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

It should be noted that the N1 'interface, the N2' interface N3 'and the N4' interface in fig. 1 may respectively correspond to the N1 interface, the N2 interface, the N3 interface and the N4 interface in the 5G communication system. In addition, the interface name between each network element is only an example, and the interface name may be other names in specific implementation, which is not specifically limited in this embodiment of the present application.

The network architecture and the application scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new application scenario.

In this embodiment of the present application, the data transmission channel between the terminal and the user plane network element (e.g., UPF) may include a first data transmission channel and a second data transmission channel, where the first data transmission channel may refer to a data transmission channel between the terminal and the access gateway, and the second data transmission channel may refer to a data transmission channel between the access gateway and the user plane network element. The first data transmission channel may also be referred to as an access network session and the second data transmission channel may also be referred to as a mobile network session.

Fig. 2 is a schematic flowchart of an information processing method according to an embodiment of the present application, and referring to fig. 2, the method includes the following steps.

S201: the core network equipment sends a first message to the access gateway, wherein the first message comprises access network session information.

The access network session information comprises at least one of the following information: the IP address of the terminal, the indication information of the IP address acquisition mode and the user message information from the terminal. The user message information comprises at least one of the following items: a Virtual Local Area Network (VLAN) identifier, the number of VLAN tags, a Media Access Control (MAC) address of the terminal, and combination information of the VLAN identifier and the MAC address of the terminal.

S202: the access gateway receives a first message sent by the core network equipment. Wherein, the first message in S201 is identical to the first message in S202, and refer to the following description specifically.

The IP address of the terminal may be an IPv4 address or an IPv6 address. The indication information of the IP address obtaining manner may be used to indicate the obtaining manner of the IP address of the terminal, and the obtaining manner may include: the IP address of the terminal is obtained through a Non Access Stratum (NAS) message/signaling, or the IP address of the terminal is obtained through a Dynamic Host Configuration Protocol (DHCP), or the IP address of the terminal is obtained through a DHCPv6, or the IP address of the terminal is obtained through a stateless address allocation protocol, or the IP address of the terminal is obtained through other protocols or manners, and the like, which is not specifically limited in this embodiment of the application.

In addition, the VLAN id is used to identify the VLAN in which the terminal is located. The VLAN tag (tag) may comprise a server tag (s-tag) and a user tag (c-tag), and the number of VLAN tags included in the user message information from the terminal may be 0, 1 or 2. The MAC address of the terminal may be a MAC address table, i.e., the terminal includes a plurality of MAC addresses, e.g., MAC1, MAC2, MAC3, etc. The VLAN identification combination information including the MAC address of the terminal corresponding to the access network session and VLAN information may also be a MAC-VLAN table, i.e., in case the terminal includes a plurality of MAC addresses, the combination information includes a plurality of MAC-VLAN information, such as (MAC1, VLAN1), (MAC1, VLAN2), (MAC2, VLAN2), and so on.

Specifically, the access network session information includes an IP address of the terminal, that is, the first message includes the IP address of the terminal, and the access gateway may parse the first message to obtain the IP address of the terminal, where the first message may be used to implicitly indicate that the IP address obtaining manner of the terminal is obtained through NAS messages, that is, the access gateway may determine that the IP address obtaining manner of the terminal is obtained through NAS messages according to that the access network session information includes the IP address of the terminal. Or, the access network session information includes indication information of an IP address acquisition manner, that is, the first message directly includes information for explicitly indicating the IP address acquisition manner of the terminal, so that the access gateway can acquire the IP address of the terminal according to the corresponding IP address acquisition manner when receiving the first message. Or, the access network session information includes user packet information, and specifically may include one or more of a VLAN identifier, the number of VLAN tags, the MAC address of the terminal, and combination information of the VLAN identifier and the MAC address of the terminal. Or the access network session information includes two or all of the IP address of the terminal, the indication information of the IP address acquisition mode, and the user message information.

Further, when the access network session information includes the IP address of the terminal and/or the indication information of the IP address acquisition mode, the first message may also include the MAC address of the terminal, that is, the core network device sends the MAC address of the terminal to the access gateway through the first message, and the access gateway may 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 further include an NAS message, where the NAS message includes the IP address of the terminal and the MAC address of the access gateway, and when the access gateway receives the first message, the access gateway may send the NAS message to the terminal without parsing the NAS message, so that the terminal acquires the IP address of the terminal through the NAS message, and may also acquire 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 may be regarded as two pieces of information in parallel in the first message.

For example, taking the converged network shown in fig. 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, the first message may be an N2 session creation request message, and the access network session information is fixed-network session information. Specifically, in the PDU session creation process, the terminal may send a PDU session setup request to the AGF. The AGF sends a PDU session setup 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 may send an N2 session creation request message to the AGF, and the N2 session creation request message may include a session type, an IP address of the terminal, and an NAS message. Optionally, the N2 session creation request message may further include the terminal MAC address, and the NAS message may further include the MAC address of the AGF.

S203: and 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 may map the access network session corresponding to the terminal in the mobile network session corresponding to the access gateway according to the access network session information, or map the mobile network session corresponding to the terminal in the access network session corresponding to the access gateway.

When the access network session information includes different information, the access gateway maps the access network session and the mobile network session corresponding to the terminal according to the access network session information, which will be described in detail below.

And I, when the access network session information comprises the IP address of the terminal, the access gateway maps the access network session and the mobile network session corresponding to the terminal through the IP address of the terminal.

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

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

And II, when the access network session information comprises indication information of an IP address acquisition mode, the access gateway acquires the IP address of the terminal according to the IP address acquisition mode and performs session mapping according to the IP address of the terminal.

Specifically, the access gateway may monitor the IP address of the terminal according to the IP address obtaining manner indicated by the indication information, and then map the access network session and the mobile network session corresponding to the terminal according to the above-mentioned first manner. For example, when the IP address is obtained through DHCP, the access gateway may monitor a DHCP message, obtain the IP address of the terminal from the DHCP message, and then map the access network session and the mobile network session corresponding to the terminal according to the above-mentioned first mode.

And III, when the access network session information comprises user message information from the terminal, the access gateway maps the access network session corresponding to the terminal in the mobile network session corresponding to the access network session through the user message information.

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

Optionally, the access resource management network element may further generate a mapping relationship corresponding to the access network session and the mobile network session, and send the mapping relationship and the mapping rule to AN access point (AN) and AN Access Gateway (AGF), where the access point and the access gateway may locally store the mapping rule and the mapping relationship. When receiving the uplink data message from the terminal, the access gateway can forward the uplink data message from the terminal to the corresponding mobile network session according to the mapping relation and the mapping rule; correspondingly, when the access gateway receives the downlink data message from the core network user plane network element, the downlink data message from the user plane network element can be forwarded to the corresponding access network session according to the mapping relationship and the mapping rule.

For example, as shown in fig. 3, assuming that the VLAN identifier reported by the terminal in the user packet information is VLAN1 (or the VLAN identifier obtained from the AAA server is VLAN1), the number of VLAN tags (tags) may be 0 (i.e., untag), 1 (i.e., c-tag), or 2 (i.e., s-tag + c-tag). The VLAN identifier in the uplink data packet sent by the access point received by the access gateway is VLAN2, VLAN2 is the VLAN identifier obtained by the access point (AN) replacing or modifying the VLAN identifier in the uplink data packet sent by the terminal, the number of VLAN tags (tag) may be 1 (i.e., c-tag ') or 2 (i.e., s-tag ' + c-tag '), the mapping rule corresponding to the access gateway is that the uplink data packet of VLAN2 corresponds to mobile network session PDU1, and VLAN2 is replaced with VLAN1 when the uplink data packet is forwarded to the mobile network. Specifically, for the uplink data packet, the access gateway may query the mapping rule according to VLAN2, determine the corresponding mobile network session, replace VLAN2 in the uplink data packet with VLAN1, and then forward the replaced uplink data packet to the corresponding mobile network session (for example, PDU 1).

For example, the mapping rule of the fixed session and the mobile network session may be as shown in table 1 below, where in table 1, the mapping rule is illustrated by mapping the access network session to the corresponding mobile network session when the uplink data packet sent by the terminal includes a VLAN identifier or the number of included VLAN tags (tags) is 0, 1, or 2, respectively.

TABLE 1

Note that, in table 1 above, when 1 in the session mapping condition: 1, different users of the same service at the session side of the access network use different VLAN information (VLAN identification) for identification; n: 1 indicates that different users of the same service on the session side of the access network use the same VLAN information (VLAN id) for identification, and at this time, different sessions cannot be distinguished only by using VLAN information when performing session mapping, so that mapping can be performed by VLAN information + MAC, where MAC in table 1 refers to the MAC address of a terminal.

In addition, the mapping rule for mapping the mobile network session to the access network session may be the opposite of the operation in table 1, for example, with VLAN id and session mapping condition of 1: for example, when the AGF receives a GTP-U encapsulated data packet sent by a user plane network element, the AGF policy is: carrying out GTP-U decapsulation on the data message, and carrying out access network session encapsulation by adopting a VLAN (virtual local area network) identifier of an access network session; the AN strategy is as follows: and converting the VLAN identification of the access network session in the data message into the VLAN identification of the user. Specifically, the mapping rule for mapping the mobile network session to the access network session may refer to the information in table 1, which is not described in detail in this embodiment of the present application.

Further, when the access network session information includes the indication information of the IP address obtaining manner, after receiving the first message, the access gateway may enable an Address Resolution Protocol (ARP) proxy (agent) function, enable a DHCP monitoring function, and/or enable other functions related to the user service (e.g., message speed limit, etc.). The enabling of the ARP proxy function by the access gateway may refer to that when the access gateway receives ARP information of any address requested by the terminal, the ARP proxy is used to respond to the MAC address of the access gateway. The enabling of the DHCP monitoring function by the access gateway may refer to the access gateway starting a function of monitoring a DHCP message.

Correspondingly, when the access network session information in the first message includes the indication information of the IP address acquisition mode, the access gateway may further send a second message to the access resource management network element after receiving the first message, where the second message includes the indication information of the IP address acquisition mode, so that the access resource management network element indicates the access point (AN) to enable a corresponding function when receiving the second message. 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 access network session information includes the IP address of the terminal and/or the indication information of the IP address obtaining manner, and the first message further includes the MAC address of the terminal, referring to fig. 4, before the access gateway performs session mapping (i.e. before performing S203), the method further includes: s203 a.

S203 a: and the access gateway checks the data message and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal.

The data packet may be an uplink data packet sent by the terminal to the access gateway, or a downlink data packet, and is mainly used for checking the uplink data packet. The uplink data packet may include the IP address of the terminal and the MAC address of the terminal. When the access gateway receives the uplink data message sent by the terminal, the access gateway may verify whether the IP address of the terminal and the MAC address of the terminal included in the first message are consistent with the IP address of the terminal and the MAC address of the terminal included in the uplink data message. If the consistency check is passed, the access gateway can send the uplink data message to the core network; if the inconsistency check fails, the access gateway may discard the uplink data packet.

The ARP request message may be a message that the terminal sends to the access gateway to request the MAC address of the access gateway. Similarly, the IP address of the terminal and the MAC address of the terminal may be included in the ARP request message, and when the access gateway receives the ARP request message transmitted by the terminal, the access gateway may verify whether the IP address of the terminal and the MAC address of the terminal included in the first message are consistent with the IP address of the terminal and the MAC address of the terminal included in the ARP request message. If the consistency check is passed, the access gateway can respond to the ARP request message, namely, the MAC address of the access gateway is sent to the terminal; if the inconsistency is failed, 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 an ARP request message for requesting the MAC address of the terminal to the terminal, and when the NAS message sent by the access gateway to the terminal further includes the MAC address of the access gateway, the terminal may discard the ARP request message when receiving the ARP request message, that is, the terminal may not respond to the ARP request message.

Further, when the access network session information includes user packet information from the terminal, the core network device may obtain the user packet information in the following two ways, with reference to fig. 5 in conjunction with fig. 2, where the method further includes: s200a or S200 b.

S200 a: the core network equipment receives a session creation request message sent by the terminal, wherein the session creation request message comprises user message information.

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

S200 b: the core network equipment acquires the user message information from the authentication authorization charging server.

The Authentication Authorization Accounting (AAA) server (server) is a server capable of processing a user access request, and provides authentication authorization and account services, and is mainly used for managing user access to a network server and providing services for users with access rights. When the core network equipment needs to acquire user information, the core network equipment can directly or indirectly send a request to an AAA server; correspondingly, when the AAA server receives the request, the AAA server sends the user message information to the core network device through the corresponding path, so that the core network device obtains the user message information.

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

For convenience of understanding, taking the converged network shown in fig. 1 as an example, a first message sent by a core network device to an access network includes an IP address of the terminal, indication information of an IP address acquisition manner, and user packet information, respectively, where the core network device is an SMF, an 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 fixed network session information.

Example one: the first message includes the IP address of the terminal, and referring to fig. 6, the method may include the following steps.

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

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

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

S603: an existing PDU session creation procedure is performed.

S604: the SMF sends an N2 session creation request to the AGF, including the IP address of the terminal. Optionally, a MAC address used by the terminal is also included. Further, the request carries the NAS message transmitted to the RG; optionally, the NAS message includes a MAC address used by the AGF (the MAC address of the AGF may be obtained through configuration, or sent to the core network control plane by the AGF in another message).

S605: the AGF stores the IP address of the terminal.

Alternatively, the MAC address used by the terminal is saved (performed in the case where the MAC address of the terminal is transmitted in S604). Further, in case of saving the MAC address used by the terminal, the AGF may subsequently discard the ARP request message from the terminal within the session or check the ARP request message sent by the terminal.

S606: and establishing a fixed network side session.

The mapping information of the fixed network session and the PDU session is generated on the AGF, and can be mapped to the PDU session through the IP address of the terminal or mapped by adopting a user message information mode.

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 stores the MAC address of the AGF (performed in the case where S607 transmits the MAC address of the AGF). When the RG stores the MAC address of the AGF, the RG may use the MAC address of the AGF as the destination MAC address of the uplink data packet, and may acquire the MAC address of the AGF without using the ARP request message.

S609: and checking 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 receiving the downlink data message, the AGF de-GTP-U encapsulation, adds an ethernet header to the message, uses the MAC address of the terminal stored in S605 as the destination MAC address of the message, and uses the MAC address of the AGF as the source MAC address, so that the access gateway may not need to obtain the MAC address of the RG through the ARP request message, thereby reducing signaling interaction between the AGF and the RG.

Example two: the first message includes indication information of an IP address acquisition manner, and referring to fig. 7, the method may include:

S701-S703: the same as S601-S603 in example one.

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

Wherein, the request includes the indication information, and the manner of indicating the terminal to acquire the IP address may be: by DHCP, DHCPv6, stateless address assignment protocol, or other protocol, etc. Optionally, the request further includes a MAC address of the terminal.

S705: AGF enables ARP proxy functionality.

Not only the ARP proxy function but also the DHCP snooping function and other functions can be enabled by the AGF, which can also be executed by S709.

S706: the AGF sends a session creation request to the ACRF, wherein the request comprises the indication information. Optionally, the request further includes a MAC address of the terminal.

S707: the ACRF creates a session to obtain mapping information, for example, creates according to user message information.

S708: the ACRF sends mapping information, such as VLAN information, to the AGF. Optionally, relevant policies are sent to the AGF, e.g. enabling ARP proxy, DHCP proxy, etc.

S709: AGF enables ARP proxy functionality.

The AGF may enable not only the ARP proxy function, but also the DHCP snooping function, and other functions, and one of the steps and S705 is executed.

S710: the ACRF sends mapping information and related strategies to the AN. S708 may not be consecutive to S708.

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

S712-S713: the RG and the core network finish the DHCP process, in the process, the AGF forwards the DHCP message of the user to the N3PDU conversation, stores the MAC address of the terminal, and monitors and acquires the IP address of the user. Further, when the AGF forwards the downlink data packet to the RG, the stored MAC address of the terminal is used as the destination MAC address in the header, and the MAC address of the AGF is used as the source MAC address.

S714-S715: and the RG acquires the MAC address of the AGF through the ARP request message and uses the MAC address as a target MAC address for subsequently sending the uplink data message.

S716-S717: for the downlink data message, the AGF decodes GTP-U encapsulation and adds an Ethernet header to the message.

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

Example three: the first message includes user message information, and referring to fig. 8, the method may include:

s801: the RG sends a session creation request to the SMF through the AGF, where the request includes user packet information, such as VLAN id, or the number of VLAN tags (which may be 0, 1, or 2, and does not specify a specific VLAN tag). Optionally, the request may also include a MAC address used by the terminal, or a MAC-VLAN table (i.e., combination information of the MAC address of the terminal and the VLAN id).

S802: an existing session creation process is performed.

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

The instruction includes the user message information in S801, that is, the user message information from the RG. Specifically, in the case where the MAC address of the terminal is not included in S801, the SMF may acquire the MAC address of the terminal from another network element in S802, and may send it to the AGF in this step. For example, the SMF is obtained by an AAA server.

S804: the AGF sends a session creation request to the ACRF, wherein the request comprises user message information.

S805 to S807: and the ACRF creates a mapping rule and a mapping relation corresponding to the fixed network side session and sends the mapping rule and the mapping relation to the AGF and the AN. For example, the specific mapping rule generation manner can refer to the information in table 1.

S806 a: the AGF stores the mapping rules of the fixed network session and the mobile network session. Optionally, a translation rule for VLAN information is maintained.

S808: and the AGF converts VLAN information of the uplink and downlink data messages and transmits the VLAN information. Specifically, the uplink and downlink data packets may refer to an uplink data packet and a downlink data packet, and when receiving the uplink data packet on the fixed network side, the AGF forwards the packet to a PDU session corresponding to the session according to a mapping rule; and when receiving the data message of the PDU session from the UPF, forwarding the data message to the corresponding fixed network session according to the mapping rule.

Alternatively, in fig. 8 described above, the steps of S803 to S808 may be replaced with S809 to S811.

S809: the AGF sends N4 session creation request to the UPF, where the session creation request includes user message information from the terminal, such as VLAN id, or the number of VLAN tags (which may be 0, 1, 2, and does not specify a specific VLAN tag). Optionally, the request may also include a MAC address used by the terminal, or a MAC-VLAN table (i.e., combination information of the MAC address of the terminal and the VLAN id).

S810: the UPF stores mapping rules of fixed network session and mobile network session. Optionally, a translation rule for VLAN information is maintained.

S811: and the AGF converts VLAN information of the uplink and downlink data messages and transmits the VLAN information. Specifically, the uplink and downlink data packets may refer to an uplink data packet and a downlink data packet, and when receiving the uplink data packet on the fixed network side, the AGF forwards the packet to a PDU session corresponding to the session according to a mapping rule; and when receiving the data message of the PDU session from the UPF, forwarding the data message to the corresponding fixed network session according to the mapping rule.

In the embodiment of the application, the access gateway may receive access network session information sent by the core network device, where the access network session information includes at least one of an IP address of the terminal, indication information of an IP address acquisition mode, and user packet information from the terminal, and maps an access network session and a mobile network session corresponding to the terminal according to the access network session information, so as to implement mapping between the access network session and the mobile network session. Meanwhile, in the method, network elements on the access network side, such as an access gateway and an access point, can also acquire the IP address of the terminal to enable a specific service, thereby improving the performance of the communication system.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that each network element, such as the access gateway, the core network device, the terminal, and the like, includes a hardware structure and/or a software module for performing each function in order to implement the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, according to the above method example, functional modules may be divided for the access gateway, the core network device, and the terminal, for example, each functional module may be divided for each function, or two or more functions may be integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given by taking the division of each function module corresponding to each function as an example:

in the case of using an integrated unit, fig. 9 shows a schematic diagram of a possible configuration of the information processing apparatus involved in the above-described embodiment. The information processing device can be an access gateway or a chip built in the access gateway, and comprises: a receiving unit 901 and a processing unit 902. Wherein, the receiving unit 901 is used to support the information processing apparatus to execute step S202, step 604, and/or step 600a in the method embodiment; the processing unit 902 supports the information processing apparatus to perform steps of S203, S203a, and/or discarding an ARP request message transmitted by a terminal in the method embodiment. Optionally, the information processing apparatus may further include a sending unit 903, where the sending unit 903 is configured to execute the step of sending the second message to the access resource management network element by the information processing apparatus, or the step of sending the user packet information to the access resource management network element. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of using an integrated unit, fig. 10 shows a schematic diagram of a possible configuration of the information processing apparatus involved in the above-described embodiment. The information processing apparatus may be a core network device or a chip built in the core network device, and includes: a transmitting unit 1001 and a receiving unit 1002. Wherein, the transmitting unit 1001 is used to support the information processing apparatus to execute S201 in the method embodiment; the receiving unit 1002 supports the information processing apparatus to execute S200a or S200b in the method embodiment. Alternatively, the information processing apparatus may further include a processing unit 1003, and the processing unit 1003 is configured to execute the step of generating the first message by the information processing apparatus, and the like. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

In the case of using an integrated unit, fig. 11 shows a schematic diagram of a possible configuration of the information processing apparatus involved in the above-described embodiment. The information processing apparatus may be a terminal or a chip built in the terminal, and includes: a transmission unit 1101. The sending unit 1101 is configured to support the information processing apparatus to execute the step of sending the user packet information to the core network device in the method embodiment. Optionally, the information processing apparatus may further include a receiving unit 1102 and a processing unit 1103; the receiving unit 1102 supports the step of receiving the MAC address of the access gateway in the method embodiment performed by the information processing apparatus, and the processing unit 1103 is configured to perform the step of discarding the ARP request message sent by the access gateway in the method embodiment performed by the information processing apparatus. All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Based on the hardware implementation, the processing unit in this application may be a processor of an information processing apparatus, the transmitting unit may be a transmitter of the information processing apparatus, the receiving unit may be a receiver of the information processing apparatus, and the transmitter and the receiver may be integrated together to function as a transceiver, and a specific transceiver may also be referred to as a communication interface.

Fig. 12 is a schematic diagram of a possible logical structure of an information processing apparatus according to an embodiment of the present application, where the information processing apparatus includes: a processor 1202, and a communication interface 1203. The processor 1202 is configured to control and manage the operation of the information processing apparatus.

The information processing apparatus may be in a product form of an access gateway or a chip built in the access gateway, or in a product form of a core network device or a chip built in the core network device, or in a product form of a terminal or a chip built in the terminal. Specifically, when the information processing apparatus is in the product form of an access gateway or a chip built in the access gateway, the processor 1202 is configured to support the information processing apparatus to perform steps of S203, S203a, discarding an ARP request message sent by a terminal, and/or other steps for the access gateway described herein in the method embodiment. When the information processing apparatus is in a product form of a core network device or a chip built in the core network device, the processor 1202 is configured to support the information processing apparatus to perform the step of generating the first message in the method embodiment, and/or other steps for the core network device described herein. When the information processing apparatus is in the product form of a terminal or a chip built in the terminal, the processor 1402 is configured to support the information processing apparatus to perform the step of discarding the ARP request message sent by the access gateway in the method embodiment, and/or other steps for the terminal described herein.

Further, the information processing apparatus may further include a memory 1201 and a bus 1204, and the processor 1202, the communication interface 1203, and the memory 1201 are connected to each other by the bus 1204; the communication interface 1203 is used for supporting the information processing apparatus to perform communication; the memory 1201 is used to store program codes and data of the information processing apparatus.

In the information processing apparatus 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 device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a digital signal processor and a microprocessor, or the like. The bus 1204 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 12, but this is not intended to represent only one bus or type of bus.

In another embodiment of the present application, a readable storage medium is further provided, where the readable storage medium stores computer-executable instructions, and when a device (which may be a single chip, a chip, or the like) or a processor executes the steps of accessing the gateway in the information processing method provided in the foregoing method embodiment. The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

In another embodiment of the present application, a readable storage medium is further provided, where the readable storage medium stores computer-executable instructions, and when one device (which may be a single chip, a chip, or the like) or a processor executes the steps of the core network device in the information processing method provided in the foregoing method embodiment. The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

In another embodiment of the present application, a readable storage medium is further provided, where the readable storage medium stores computer-executable instructions, and when a device (which may be a single chip, a chip, or the like) or a processor executes the steps of the terminal in the information processing method provided in the foregoing method embodiment. The aforementioned readable storage medium may include: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.

In another embodiment of the present application, there is also provided a computer program product comprising computer executable instructions stored in a computer readable storage medium; the at least one processor of the device may read the computer-executable instructions from the computer-readable storage medium, and the at least one processor executes the computer-executable instructions to cause the device to perform the steps of accessing the gateway in the information processing method provided by the above-mentioned method embodiment.

In another embodiment of the present application, there is also provided a computer program product comprising computer executable instructions stored in a computer readable storage medium; the at least one processor of the device may read the computer-executable instructions from the computer-readable storage medium, and the at least one processor executes the computer-executable instructions to cause the device to implement the steps of the core network device in the provided information processing method.

In another embodiment of the present application, there is also provided a computer program product comprising computer executable instructions stored in a computer readable storage medium; the computer-executable instructions can be read by at least one processor of the device from a computer-readable storage medium, and the execution of the computer-executable instructions by the at least one processor causes the device to implement the steps of the terminal in the provided information processing method.

In another embodiment of the present application, there is also provided a communication system including an access gateway, a core network device, and a terminal. The access gateway may be an access gateway provided in the apparatus embodiment, and is configured to support the access gateway to perform the step of accessing the gateway in the method embodiment; and/or the core network device is the core network device provided by the above apparatus embodiment, and is configured to support the core network device to execute the steps of the core network device in the method embodiment; and/or the terminal is provided by the above device embodiment, and is used for supporting the terminal to execute the steps of the terminal in the method embodiment.

In the embodiment of the application, the access gateway may receive access network session information sent by the core network device, where the access network session information includes at least one of an IP address of the terminal, indication information of an IP address acquisition mode, and user message information, and maps an access network session and a mobile network session corresponding to the terminal according to the access network session information, so as to implement mapping between the access network session and the mobile network session. Meanwhile, in the method, network elements on the access network side, such as an access gateway and an access point, can also acquire the IP address of the terminal to enable a specific service, thereby improving the performance of the communication system.

Finally, it should be noted that: the above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An information processing method, characterized in that the method comprises:

an access gateway receives a first message sent by a core network device, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: virtual local area network VLAN identification, the number of VLAN tags, a Media Access Control (MAC) address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal;

and 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 an IP address of the terminal and/or indication information of the IP address obtaining manner, the first message further includes a MAC address of the terminal.

3. The method according to claim 1 or 2, wherein when the access network session information comprises an IP address of the terminal, the first message further comprises a non-access stratum, NAS, message comprising a MAC address of the access gateway.

4. The method of claim 3, wherein the MAC address of the access gateway is used for a destination MAC address of the uplink data packet sent by the terminal.

5. The method of claim 2, further comprising:

and the access gateway checks the data message and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal.

6. The method of claim 3, further comprising:

the access gateway discards an address resolution protocol, ARP, request message from the terminal.

7. The method of claim 1, wherein when the access network session information includes the indication information of the IP address obtaining manner, the method further comprises:

and the access gateway sends a second message to an access resource management network element, wherein the second message comprises the indication information of the IP address acquisition mode.

8. The method of claim 7, wherein the second message further comprises a 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 maps an access network session and a mobile network session corresponding to the terminal according to the access network session information, and includes:

the access gateway sends the user message information to an access resource management network element;

the access gateway receives mapping information sent by the access resource management network element, wherein the mapping information comprises a mapping rule;

and 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 equipment receives a session request message from a terminal;

the core network equipment sends a first message to an access gateway according to the session request message, wherein the first message comprises access network session information, and the access network session information comprises at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of terminal, VLAN identification and combination information of MAC address of terminal.

11. The method according to claim 10, wherein when the access network session information includes an IP address of the terminal and/or indication information of the IP address obtaining manner, the first message further includes a MAC address of the terminal.

12. The method according to claim 10 or 11, wherein when the access network session information comprises an IP address of the terminal, the first message further comprises a non-access stratum, NAS, message comprising a MAC address of the access gateway.

13. The method of claim 10, wherein:

the session request message comprises the user message information; alternatively, the first and second electrodes may be,

the method further comprises the following steps: and the core network equipment acquires the user message information from an authentication authorization charging server.

14. An information processing apparatus, wherein the apparatus, as an access gateway, comprises:

a receiving unit, configured to receive a first message sent by a core network device, where the first message includes access network session information, and the access network session information includes at least one of the following information: the method comprises the following steps that an Internet Protocol (IP) address of a terminal, indication information of an IP address acquisition mode and user message information from the terminal are obtained, wherein the user message information comprises at least one of the following items: virtual local area network VLAN identification, the number of VLAN tags, a Media Access Control (MAC) address of the terminal, and combination information of the VLAN identification and the MAC address of the terminal;

and the processing unit is used for mapping the access network session and the mobile network session corresponding to the terminal according to the access network session information.

15. The apparatus according to claim 14, wherein when the access network session information includes an IP address of the terminal and/or indication information of the IP address obtaining manner, the first message further includes a MAC address of the terminal.

16. The apparatus of claim 14 or 15, wherein when the access network session information comprises an IP address of the terminal, the first message further comprises a non-access stratum, NAS, message comprising a MAC address of the access gateway.

17. The apparatus of claim 16, wherein the MAC address of the access gateway is a destination MAC address for sending uplink data packets by the terminal.

18. The apparatus of claim 15, wherein the processing unit is further configured to:

and checking the data message and/or the ARP request message according to the IP address of the terminal and the MAC address of the terminal.

19. The apparatus of claim 15, wherein the processing unit is further configured to:

and according to the address resolution protocol ARP request message from the terminal, discarding.

20. The apparatus according to claim 14, wherein when the access network session information includes the indication information of the IP address obtaining manner, the apparatus 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 of claim 20, wherein the second message further comprises a MAC address of the terminal.

22. The apparatus of claim 14, wherein when the access network session information includes the user packet information, the apparatus further comprises a sending unit:

the sending unit is configured to send the user message 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 a mapping rule;

the processing unit is further configured to map an access network session and a mobile network session corresponding to the terminal according to the mapping rule.

23. An information processing apparatus, characterized in that the apparatus, as a core network 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 an access gateway according to the session request message, where the first message includes access network session information, and the access network session information includes at least one of the following information: the terminal comprises an Internet Protocol (IP) address of the terminal, indication information of an IP address acquisition mode and user message information from the terminal, wherein the user message information comprises at least one of the following items: VLAN identification of virtual local area network, number of VLAN labels, MAC address of terminal, VLAN identification and combination information of MAC address of terminal.

24. The apparatus according to claim 23, wherein when the access network session information includes an IP address of the terminal and/or indication information of the IP address obtaining manner, the first message further includes a MAC address of the terminal.

25. The apparatus of claim 23 or 24, wherein when the access network session information comprises an IP address of the terminal, the first message further comprises a non-access stratum, NAS, message comprising a MAC address of the access gateway.

26. The apparatus of claim 23, wherein:

the receiving unit is further configured to obtain the user message information from an authentication authorization charging server.

27. A computer-readable storage medium, characterized in that a computer program or instructions are stored therein, which, when executed, implement the information processing method according to any one of claims 1 to 9, or implement the information processing method according to any one of claims 10 to 13.