WO2013107138A1

WO2013107138A1 - Method and apparatus for wifi terminal to access different service domains

Info

Publication number: WO2013107138A1
Application number: PCT/CN2012/075854
Authority: WO
Inventors: 孔涛; 黄保庆; 朱莉
Original assignee: 华为技术有限公司
Priority date: 2012-01-18
Filing date: 2012-05-22
Publication date: 2013-07-25
Also published as: RU2572825C1; CN103220650A; CN103220650B

Abstract

The present invention provides a method and apparatus for a WiFi terminal to access different service domains. The method is applied to CPE and comprises: if an uplink data service initiated by a WiFi terminal is of a data service type with authentication and/or charging being performed on an IP layer, encapsulating the uplink data service through a CAPWAP tunnel; after a packet of the uplink data service encapsulated through the CAPWAP tunnel is transparently transmitted through an EPC, sending the packet to a BRAS, and the BRAS sending the packet of the uplink data service to a corresponding service domain; if the uplink data service initiated by the WiFi terminal is of a data service type with authentication and/or charging being performed on an application layer, converting a second IP address of the WiFi terminal carried by a packet bearing the uplink data service into a first IP address of a CPE device; directly routing and forwarding the packet, carrying the first IP address of the CPE device, of the uplink data service to a corresponding service domain through the EPC.

Description

Method and device for accessing different service domains by Wifi terminal The present application claims to be submitted to the Chinese Patent Office on January 18, 2012, and the application number is 201210015987. 5. The invention name is "a method and device for accessing different service domains by a Wifi terminal" The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for a WiFi terminal to access different service flows. BACKGROUND With the rapid development of LTE (Long Term Evolution) and HSPA (High Speed Packet Access) technologies, the demand for broadband wireless access using HSPA+LTE technology has emerged in the industry. Term Evolution Advanced, Subsequent Evolution of LTE Technology) CPE (Customer Premise Equipment) performs wireless broadband access. At the same time, WiFi has become the standard configuration for consumer electronics such as smartphones, notebooks, and tablets. Compared to LTE terminals, WiFi terminals are low cost and more popular. Therefore, in the field of wireless broadband technology, the adoption of the LTE+WiFi technology solution has become a trend.

In order to realize that a WiFi terminal accesses the network through the LTE CPE, it needs to support multiple data services, such as

Internet s IPTV (Internet Personality Television), IMS (Internet Protocol Multimedia Subsystem) and operator-owned services. For services such as the Internet that require authentication and/or accounting at the IP (Internet Protocol) layer, LTE/EPC can only perceive LTE CPE and cannot perceive WiFi terminals under LTE CPE. The LTE/EPC cannot authenticate and/or charge the WiFi terminal in the case where the WiFi terminal accesses the service domain in which the IP layer performs authentication and/or accounting.

In order to be able to authenticate and/or charge the WiFi terminal in the case that the WiFi terminal accesses the service domain of the IP layer for authentication and/or accounting, the prior art proposes a new network architecture, the uplink data service of the WiFi terminal. After being encapsulated by the CAPWAP tunnel, the traffic is connected to the BRAS (Broadband Remote Access Server) and then connected to the corresponding service domain through the BRAS. However, in the networking mode, the uplink data service flow is encapsulated by the CAPWAP (Control and Provisioning of Wireless Access Points Protocol Specification), so that the Internet layer and the like are authenticated and/or Or other services other than the billing service bring a large head overhead, which seriously affects the efficiency of EPS (Evolved Packet System); and CAPWAP The quintuple of the tunnel is the same. Different uplink data service flows of the WiFi terminal will be mapped to the same EPS bearer, so that priority scheduling of different service flows initiated by the WiFi terminal cannot be implemented. Summary of the invention

The embodiments of the present invention provide a method and an apparatus for accessing different service domains by a WiFi terminal, which are used to solve the problem that the EPS of the prior art is low in efficiency and the priority scheduling of different service flows initiated by the WiFi terminal cannot be implemented.

In order to solve the above technical problem, the embodiment of the present invention adopts the following technical solutions:

A method for a WiFi terminal to access a different service domain is applied to a user equipment CPE, where the CPE communicates with the WiFi terminal through a WiFi mode, and the CPE communicates with the base station through a long-term evolution LTE mode. The base station is connected to a plurality of service domains corresponding to the plurality of services by using the EPC of the evolved packet core network. The system is configured to enable the WiFi terminal to pass the CPE, the base station, the EPC, and the service domain. Communication, wherein the method includes:

The CPE communicates with the broadband remote access server BRAS through the EPC according to the first IP address allocated by the EPC, and establishes a CAPWAP tunnel, and authenticates the WiFi terminal encapsulated by the CAPWAP tunnel with the IP layer and/or Transmitting, by the charging service domain, a message that is communicated to the BRAS, and by the WiFi terminal interacting with the service domain that performs authentication and/or charging at the IP layer, the BRAS allocates a number to the WiFi terminal. a second IP address; determining a data service type of the uplink data service initiated by the WiFi terminal;

If the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the IP layer, the uplink data service is encapsulated by using the CAPWAP tunnel; and the uplink data service encapsulated by the CAPWAP tunnel is used. The packet is transmitted to the BRAS after being transparently transmitted to the EPC, and the BRAS sends the packet of the uplink data service to the corresponding service domain.

If the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, converting the second IP address of the WiFi terminal carried in the packet carrying the uplink data service into The first IP address of the CPE device is forwarded to the corresponding service domain by using the EPC direct route to the packet carrying the uplink data service of the first IP address of the CPE device.

An apparatus for accessing a WiFi terminal to a different service domain, wherein the CPE communicates with the WiFi terminal by using a WiFi mode, and the CPE communicates with the base station by using a long-term evolution LTE mode, where the base station passes The EPC of the evolved packet core network is connected to multiple service domains corresponding to multiple services, and through the above system architecture, And causing the WiFi terminal to communicate with the service domain by using the CPE, the EPC, where the CPE includes:

a tunnel establishing unit, configured to communicate with the broadband remote access server BRAS through the EPC according to the first IP address allocated by the EPC, establish a CAPWAP tunnel, and authenticate the WiFi terminal encapsulated by the CAPWAP tunnel with the IP layer And communicating with the billed service domain to the BRAS, and the BRAS is the WiFi terminal by interacting with the service domain that performs authentication and/or charging at the IP layer. Assign a second IP address;

a determining unit, configured to determine a data service type of the uplink data service initiated by the WiFi terminal;

The IP layer service processing unit is configured to: if the determining unit determines that the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at an IP layer, and uses the uplink data service to pass the CAPWAP tunnel. Carry out packaging;

The application layer service processing unit is configured to: if the determining unit determines that the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, carries the packet carrying the uplink data service. Converting the second IP address of the WiFi terminal to the first IP address of the CPE device;

a sending unit, configured to transparently transmit the packet of the uplink data service encapsulated by the CAPWAP tunnel to the BRAS, and send the packet of the uplink data service to a corresponding service domain; or

The packet of the uplink data service carrying the first IP address of the CPE device is directly forwarded to the corresponding service domain by using the EPC.

The method and device for accessing different service domains of the WiFi terminal provided by the embodiment of the present invention, the user equipment performs intelligent routing according to different data services initiated by the WiFi terminal, for example, the service for authenticating and/or charging at the IP layer, The CAPWAP tunnel encapsulates the packet carrying the uplink data service, and then transmits the packet to the BRAS. The BRAS sends the packet of the uplink data service to the corresponding service domain. Transmitting, by the EPC, the second IP address of the WiFi terminal carried by the packet carrying the uplink data service to the first IP address of the CPE device, The direct route is forwarded to the corresponding service domain, so that the WiFi terminal accesses the service domain that is authenticated and/or charged at the application layer, and does not need to pass the BRAS. The packet between the WiFi terminal and the service domain does not need to be encapsulated by the CAPWAP tunnel. Increasing the header overhead of the packet, thereby improving the transmission efficiency of the EPS; and simultaneously performing intelligent routing on different types of service domains, such as authentication and/or authentication at the IP layer or the application layer. The five-tuples of different types of service domains are different, so that the CPE can map different data services of the WiFi terminal to different EPS bearers, and implement priority scheduling between different service flows. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

1 is a flowchart of a method for a WiFi terminal to access different service domains according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a network system for a WiFi terminal to access different service domains through an EPS;

3 is a schematic diagram of a process in which a WiFi terminal requests a BRAS to allocate a second IP address;

FIG. 4 is a flowchart of another method for a WiFi terminal to access different service domains according to an embodiment of the present invention; FIG. 5 is a structural block diagram of an apparatus for a WiFi terminal to access different services and services according to an embodiment of the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1

The embodiment of the present invention provides a method and a device for accessing different service domains of a WiFi terminal, and the method is applied to a client device CPE, as shown in FIG. 1, 2, and 3, and FIG. 2 is a network system based on the embodiment. The WiFi terminal is connected to the WLAN through the AP to communicate with the CPE, and the CPE communicates with the base station by using the LTE mode, and the base station is connected to multiple service domains corresponding to multiple services by using the EPC. In this way, through the foregoing system architecture, the WiFi terminal communicates with the service domain through the CPE and the base station. The figure shows two settings for the AP (Access Point, WiFi Access Point) and the CPE of the client device. The CPE can be integrated with the AP function module. For example, the CPE/AP in Figure 1, the AP and the CPE can also be two. Separate devices. The device provided in this embodiment is a function in which the CPE is integrated with an AP.

In order for the application system to independently charge the WiFi terminal after accessing the Internet, the WiFi terminal needs to pass the BRAS through the EPS network system to access the Internet, so that the BRAS authenticates the Internet data service record accessed by the WiFi terminal to the authentication and accounting server for authentication and charging. The communication between the CPE and the BRAS is a first IP address assigned by the EPC to the CPE through an AC (Access Control Manager), and the CPE communicates with the AC through the CAPWAP tunnel. , then the AC is connected to the BRAS, of course AC And the BRAS can also be a physical device that is integrated. The first IP address is the IP address assigned by the EPC to the CPE after the CPE is authenticated by the CPE according to the 3GPP standard procedure and after the PDN connection is established with the EPC.

The BRAS allocates a second IP address to the WiFi terminal through the system architecture of FIG. 1 , as shown in FIG. 3 . For convenience of description, the BRAS is divided into two functional modules in the process of dividing the BRAS into AC and BRAS. The process of assigning a second IP address to a WiFi terminal is as follows:

First, the WiFi terminal sends a DHCP Discovery (Dynamic Host Configuration Protocol) broadcast packet to the CPE. After receiving the DHCP Discovery broadcast packet, the CPE encapsulates the packet in the CAPWAP tunnel and sends the packet to the CPE. The CPE forwards the packet encapsulated by the CAPWAP to the AC. The CPE uses the first IP address assigned by the EPC to the CPE in the packet. The AC decapsulates the received packet by CAPWAP tunnel and forwards it to the BRAS. After receiving the DHCP Discovery broadcast message sent by the WiFi terminal, the BRAS returns DHCP 0FFER to the AC. The AC then encapsulates the DHCP OFFER packet in the CAPWAP tunnel and sends it to the CPE. The CPE decapsulates the DHCP OFFER packet encapsulated in the CAPWAP tunnel and sends it to the WiFi terminal. After receiving the DHCP OFFER message sent by the BRAS, the WiFi terminal sends a DHCP Request broadcast message to the BRAS. The specific procedure is the same as the process of sending the DHCP Discovery to the BRAS, so that the BRAS assigns the second IP address to the WiFi terminal.

The data services supported by the WiFi terminal include: services for charging at the IP layer and services for authentication at the application layer, such as HSI (High Speed Internet) services for charging at the IP layer, operators' own games, and IMS services. And IPTV services are billed at the application layer. The method includes:

S10K receives an uplink data service message sent by the WiFi terminal, where the uplink data service message carries a second IP address allocated by the broadband remote access server BRAS to the WiFi terminal.

S102. Determine a data service type of the uplink data service initiated by the WiFi terminal.

After receiving the uplink data service message sent by the WiFi terminal, the CPE may determine the data service type of the uplink data service initiated by the WiFi terminal according to the quintuple information of the uplink data service message. The quintuple information of the uplink data service message can be pre-configured by the CPE or dynamically derived from the UL-TFT (Uplink Traffic Flow Template) of the CPE.

After the uplink data service message initiated by the WiFi terminal is determined, if the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the IP layer, step S103 is performed; if the WiFi terminal initiates The uplink data service is a data service type that performs authentication and/or accounting at the application layer, and then step S104 is performed.

S103. Encapsulate the uplink data service by using the CAPWAP tunnel; and seal the CAPWAP tunnel. The packet of the uplink data service is transmitted to the BRAS after being transmitted through the EPC, and the BRAS sends the packet of the uplink data service to the corresponding service domain.

If the uplink data service initiated by the WiFi terminal is authenticated and/or charged at the IP layer, the CPE encapsulates the uplink data service sent by the WiFi terminal through the CAPWAP tunnel, and the CPE transparently transmits the packet carrying the uplink data service. After the EPC is sent to the AC (the EPC does not process the packet, the EPC is "transparent" with respect to the packet), and the AC accesses the BRAS to send the packet of the uplink data service to the corresponding service. This allows the application system to individually authenticate and/or bill the WiFi terminal.

S104. Convert the second IP address of the WiFi terminal that is carried by the packet carrying the uplink data service to the first IP address of the CPE device, where the CPE device is carried. The packet of the uplink data service of an IP address is forwarded to the corresponding service domain by using the EPC direct route.

If the uplink data service initiated by the WiFi terminal is to be authenticated and/or charged at the application layer, the CPE converts the second IP address of the WiFi terminal carried in the packet carrying the uplink data service into the EPC. The first IP address allocated by the CPE module, and then the CPE module forwards the uplink data service to the corresponding service through the EPC route.

The method for accessing different service domains by the WiFi terminal provided by the embodiment of the present invention, the CPE performs intelligent routing according to different data services initiated by the WiFi terminal, for example, the service for authenticating and/or charging at the IP layer, through the CAPWAP tunnel The packet carrying the uplink data service is encapsulated and transmitted to the BRAS after being transparently transmitted to the BRAS, and the BRAS sends the packet of the uplink data service to the corresponding service domain; for authentication and/or accounting at the application layer. The service of the fee, the second IP address of the WiFi terminal carried in the packet carrying the uplink data service is converted into the first IP address of the CPE device, and is directly forwarded by the EPC to the EPC. Corresponding service domain, such that the WiFi terminal accesses the service domain that is authenticated and/or charged at the application layer, and does not need to pass the BRAS, so that the packet between the WiFi terminal and the service domain does not need to be encapsulated by the CAPWAP tunnel, and the packet is not added. Head overhead, which can improve the transmission efficiency of EPS; at the same time, CPE intelligently routes different types of service domains, such as for identification at the IP layer or application layer. The quintuples of different types of service domains are different from each other, so that the CPE can map different data services of the WiFi terminal to different EPS bearers, and implement priority scheduling between different service flows. Embodiment 2

The embodiment of the invention provides a method and a device for accessing different service domains of a WiFi terminal. The method is applied to an LTE client device CPE, as shown in FIG. 2, FIG. 3 and FIG. 4, FIG. 2 is a network on which the embodiment is based. a system in which a WiFi terminal communicates with the CPE through a WiFi mode, and the CPE communicates with the base station. The LTE mode is used for communication, and the base station is connected to multiple service domains corresponding to the multiple services by using the EPC, so that the WiFi terminal passes the CPE, the base station, and the service by using the foregoing system architecture. The domain communicates. The figure shows two settings for the AP (Access Point, WiFi Access Point) and the CPE of the client device. The CPE can integrate the AP function module. As shown in Figure 2, the AP and CPE can also be separated. device of. The device provided in this embodiment is a function in which the CPE is integrated with an AP.

In order for the application system to independently charge the WiFi terminal after accessing the Internet, the WiFi terminal needs to pass the BRAS through the EPS network system to access the Internet, so that the BRAS authenticates and bills the Internet data service record accessed by the WiFi terminal to the authentication and accounting server. The communication between the CPE and the BRAS is performed by the AC (Access Controller, WiFi access controller) using the first IP address assigned by the EPC to the CPE, and the CPE communicates with the AC through the CAPWAP tunnel, and then the AC access is performed. To the BRAS, of course, this embodiment is based on the AC and BRAS are integrated as a BRAS - a physical device. The first IP address is the CPE/AP. After the CPE/AP is powered on, the CPE/AP completes the EPC-to-CPE/AP authentication and PDN establishment according to the 3GPP standard procedure. The EPC is the IP address assigned by the CPE/AP.

The BRAS allocates a second IP address to the WiFi terminal through the system architecture of FIG. 2, as shown in FIG. 3. For convenience of description, the BRAS is divided into two functional modules in the process of dividing the BRAS into AC and BRAS. The process of assigning a second IP address to a WiFi terminal is as follows:

The S20K CPE pre-configures the access control list of the uplink data service or dynamically accesses the uplink data service. Control list.

The access control list of the uplink data service specifically includes the quintuple information of the uplink data service, where the quintuple information includes the source address of the terminal that initiates the uplink data service, the destination address of the service domain to be accessed, and the source of the uplink data service. Port, destination port and protocol number to access the service domain.

The access control list of the uplink data service can be configured in a pre-planned manner and configured in multiple ways to the CPE, including: CPE's near-end configuration interface, CPE's remote configuration interface TR069/0MA-DM, DHCP Option, Protocol Configurat Ion Opt ion (PCO) extension or CAPWAP remote management protocol. The access control list of the uplink data service may also be dynamically derived from the UL-TFT of the CPE. The specific derivation method is to use the wildcard (*) instead of the source IP address and the source port, and keep the destination IP address, protocol number, and destination port unchanged. . Of course, the quintuple information in the access control list of the pre-configured uplink data service can also use the wildcard character (*) instead of the source address and the source port, and only the destination address, protocol number, and destination port are pre-configured.

Further, the access control list of the uplink data service in the CPE can also be used to classify and identify the priority information of different uplink data services.

5202. The CPE receives an uplink data service message sent by the WiFi terminal, where the uplink data service message carries a second IP address allocated by the broadband remote access server BRAS to the WiFi terminal.

S203. The CPE determines, according to the destination address in the quintuple information of the uplink data service, a type of the uplink data service initiated by the WiFi terminal.

After determining the type of the uplink data service initiated by the WiFi terminal, if the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the IP layer, step S204 is performed; if the WiFi terminal initiates The uplink data service is a data service type that performs authentication and/or accounting at the application layer, and then step S205 is performed.

The destination address information in the access control list of the uplink data service may determine the type of the data service of the service domain to be accessed by the WiFi terminal. The data services that the WiFi terminal can support include: IMS, IPTV and HSI, carrier self-operated services, etc., but are not limited thereto. Generally, the operator plans the destination address segment of the different service domains. According to the destination address of the data service initiated by the WiFi terminal and the destination address segment of each data service in the access control list of the uplink data service, the service to be accessed by the WiFi terminal can be determined. Domain type. For example, the destination address of the IMS service domain is 192. 168. 0. 0-192. 168. 255. 255, if the destination address of the data service to be accessed by the WiFi terminal is 192. 168. 50. 23, then Determining that the data service to be accessed by the WiFi terminal is an IMS service domain. For a service flow that does not have a match in the access control list, the default is an HSI service. The data services that the WiFi terminal can support include HSI, IMS, IPTV, and carrier proprietary services. Further, after determining the type of the uplink data service initiated by the WiFi terminal, the CPE may further determine the priority information of the uplink data service initiated by the WiFi terminal according to the priority information of the pre-configured uplink data service.

S204: The CPE encapsulates the uplink data service by using the CAPWAP tunnel.

The CPE parses the destination address of the service domain to be accessed in the uplink data service message initiated by the WiFi terminal. If the destination address of the data service to be accessed by the WiFi terminal is 1. 10.2.3, the CPE corresponding to the access control list of the uplink data service determines that the data service to be accessed by the WiFi terminal is an HSI service. In this way, the CPE encapsulates the uplink data service through a CAPWAP tunnel.

S205: The CPE converts the second IP address of the WiFi terminal carried in the packet carrying the uplink data service to the first IP address of the CPE device.

If the destination address of the data service to be accessed by the WiFi terminal is 192.168. 50.23, the CPE determines that the data service to be accessed by the WiFi terminal is an IMS service. The IMS service performs charging at the application layer, so that the CPE translates the second IP address of the WiFi terminal carried in the uplink data service packet into the first IP address of the CPE itself.

If a plurality of PDN connections are established between the CPE and the EPC, the CPE converts the second IP address of the WiFi terminal carried in the uplink data service packet into an IP address of the corresponding PDN connection.

The CPE performs priority scheduling on the uplink data service initiated by the WiFi terminal according to the type of the uplink data service or the uplink data service and the priority information of the uplink data service initiated by the WiFi terminal.

Further, in order to better process the multiple uplink data services, the CPE further includes the priority information of the uplink data service in the access control list, so that the CPE has different priority information corresponding to different data service types. The uplink data service provides different priority scheduling. Specifically, a WFQ (Weighted Fair Queuing) congestion management algorithm can be adopted.

5207. The CPE maps the uplink data service initiated by the WiFi terminal to the corresponding bearer according to the QoS mechanism of the EPS.

After the CPE maps the uplink data service initiated by the WiFi terminal to the corresponding bearer according to the QoS mechanism of the EPS, if the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the IP layer, Then, step S208 is performed; if the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, step S209 is performed.

For example, after the CPE is powered on, the EPC completes the authentication for the CPE according to the 3GPP standard procedure and establishes a PDN connection. The PDN connection corresponds to a default EPS bearer and a dedicated EPS bearer with permanent online requirements. At the same time, the CPE establishes a CAPWAP control channel and a data channel with the AC according to the CAPWAP standard, and is respectively carried on the EPS dedicated bearer corresponding to the CPE. For example, the CAPWAP control channel bearer can be on the EPS dedicated bearer and the default bearer.

In this way, if the uplink data service initiated by the WiFi terminal is authenticated and/or charged at the IP layer, the CPE encapsulates the packet of the uplink data service by CAPWAP. Then, the CPE maps the packet of the uplink data service to the corresponding EPS dedicated bearer according to the QoS mechanism of the EPS.

If the uplink data service initiated by the WiFi terminal is authenticated and/or charged at the application layer, the CPE is mapped to the corresponding QoS mechanism according to the QoS mechanism of the EPS because the uplink data service initiated by the WiFi terminal does not access the corresponding service domain through the BRAS. Hosted. For example, the IMS service, the CPE maps the IMS signaling flow to the Non_GBR bearer with QCI=5, the IMS media voice stream is mapped to the dedicated GBR bearer with QCI=1, and the IMS media video stream can be mapped to the dedicated GBR bearer with QCI=2. . Such different uplink data services are mapped to different bearers, so that the EPS can provide different QoS to different uplink data services.

Of course, the foregoing bearer mapping is only for the case where a PDN is established between the CPE and the EPC. If multiple PDNs are established between the CPE and the EPC, the EPC allocates multiple IP addresses for the CPE for each PDN. For example, there are 3 PDN connections between CPE and EPC, so EPC will assign 3 IP addresses to CPE. After the CPE receives the uplink data service message initiated by the WiFi terminal, according to the type of the uplink data service, if the type of the uplink data service is an IMS service that performs charging at the application layer, the CPE selects the first for the IMS service. A PDN connection. Correspondingly, the CPE converts the second IP address of the WiFi terminal carried in the uplink data service message to the IP address of the first PDN of the CPE. Then, on the first PDN connection, the uplink data service is mapped according to the QoS mechanism of the EPS.

S208. The CPE transparently transmits the packet of the uplink data service encapsulated by the CAPWAP tunnel to the BRAS, and the BRAS sends the packet of the uplink data service to the corresponding service domain.

After the bearer mapping is performed on the uplink data service initiated by the WiFi terminal, the CPE sends the uplink data service packet encapsulated by the CAPWAP tunnel to the AC through the EPC. The AC performs CAPWAP tunnel decapsulation on the uplink data service packet, and then sends the packet to the BRAS to access the Internet service. At the same time, the BRAS charges the service flow accessed by the WiFi terminal.

S209. The CPE forwards the packet of the uplink data service that carries the first IP address of the CPE device to the corresponding service domain by using the EPC direct route.

After performing bearer mapping on the uplink data service initiated by the WiFi terminal, the CPE sends the data service initiated by the WiFi terminal to the EPC, and finally accesses the IMS domain.

Since the CPE will perform data charging at the application layer, it does not need to access the corresponding service domain through the BRAS. Therefore, the data service initiated by the WiFi terminal does not need to be encapsulated by the CAPWAP tunnel, so that the data service, such as IMS and VoIP, which is charged at the application layer, greatly reduces the overhead of the data service packet and improves the EPS. The transmission efficiency; and because the CPE/AP converts the second IP address of the WiFi terminal to the first IP address of the CPE, the EPC can sense the data service initiated by the WiFi terminal, so that the WiFi terminal can utilize the EPS bearer in the EPS. The mapping mechanism enables priority scheduling of different services.

Further, if the AP and the CPE are two separate devices, the AP and the CPE jointly complete the uplink data service initiated by the WiFi terminal to access different service domains. For example, the AP and the CPE can be connected to each other through an Ethernet interface. The CPE can assign a private IP address to the AP through DHCP packets. In this form, the access control list of the uplink data service can be configured in the AP through a remote management protocol such as CAPWAP or a local management interface of the AP. After receiving the uplink data service message sent by the WiFi terminal, the AP can determine the service type of the uplink data service initiated by the WiFi terminal according to the access control list of the uplink data service.

If the uplink data service initiated by the WiFi terminal is the data service for charging at the application layer, the AP carries the uplink data service message of the second IP address of the WiFi terminal and the service type of the uplink data service initiated by the WiFi terminal through the Ethernet interface. The encapsulated packet is sent to the CPE. The source IP address of the packet is the private IP address assigned by the CPE to the AP. After receiving the packet, the CPE first converts the second IP address of the WiFi terminal carried in the uplink data service message into the first IP address of the CPE, and converts the private network IP address of the AP in the packet into a CPE. The first IP address is sent to the corresponding service domain through the EPC.

If the uplink data service initiated by the WiFi terminal is a data service for charging at the IP layer, the uplink data service message carrying the second IP address of the WiFi terminal initiated by the WiFi terminal and the uplink data service initiated by the WiFi terminal The CAPWAP packet is encapsulated into a CAPWAP packet and sent to the CPE. The outer source IP address of the CAPWAP packet is the private network address assigned by the CPE to the AP. After receiving the CAPWAP packet, the CPE translates the outer IP address of the CAPWAP into the first IP address of the CPE, and then transparently transmits the packet to the EPC and then sends the packet to the AC. The AC decapsulates the CAPWAP packet and forwards it to the BRAS.

The CPE converts the second IP address of the WiFi terminal carried in the uplink data service message, which is initiated by the WiFi terminal, to the first IP address of the CPE, so that the CPE is based on the first IP address of the CPE in the uplink data service message. Address, the data service initiated by the WiFi terminal can be mapped to the corresponding EPS bearer; and for the data service that is charged at the IP layer, the data service message initiated by the WiFi terminal encapsulated by the CAPWAP carries the second IP address of the WiFi terminal. So, the CPE maps the data service initiated by the WiFi terminal to another bearer. Therefore, priority scheduling between upstream and downstream flows of different services can be implemented at the EPS bearer layer, and different QoS (Quality of System) levels between different uplink data service flows are guaranteed. Further, in the prior art, in order to solve the problem of separate authentication and/or charging for the WiFi terminal, the WiFi terminal must access the BRAS when accessing the service for charging at the application layer, thereby failing to support the dynamic PCC (Policy Control) And Charging, Policy Control and Accounting) Issues with policy and static QoS policy deployment. In this embodiment, the WiFi terminal accesses the service that performs charging at the application layer, such as the IMS service, and the CPE converts the second IP address in the uplink data service message initiated by the WiFi terminal into the first IP address of the CPE, so that the EPC side Can be perceived. When the IMS triggers the establishment of a dedicated EPS bearer to the P-GW (Packet Data Network Gateway) through the PCRF (Policy and Charging Rules Function), the P-GW can be associated with the EPS bearer of the CPE. To support dynamic PCC policies and static QoS policy deployment.

Further, in this implementation, the BRAS allocates an IP address to the WiFi terminal through the BRAS, and the WiFi terminal accesses the service domain in the IP layer authentication and/or charging through the BRAS, so that the application system can separately charge the WiFi terminal; The EPC accesses the application domain charging service domain, and the service domain charges the WiFi terminal at the application layer, thereby implementing the application system to separately charge different services accessed by the WiFi terminal, thereby avoiding the WiFi terminal. When the BRAS accesses all the different service domains, the BRAS must deduct the cost of the service that is also charged at the application layer after all the services are charged. This reduces the difficulty of implementing and deploying BRAS and AAA (Authentication, Authorization, Accounting, Authentication, Authorization, and Statistics) servers.

Further, the CPE device provided by the embodiment of the present invention may include not only the LTE interface unit and the base station to communicate through the long-term evolution LTE mode, but also the LTE-A (LTE-Advan _C ed, subsequent evolution of the LTE technology) interface unit and the base station. Communication is carried out through the long-term evolution LTE-A mode.

The method for accessing different service domains by the WiFi terminal is provided by the embodiment of the present invention. The user equipment performs intelligent routing according to different data services initiated by the WiFi terminal, for example, the service for authenticating and/or charging at the IP layer. The CAPWAP tunnel encapsulates the packet carrying the uplink data service, and then transmits the packet to the corresponding service domain by transmitting the BRAS through the EPC. The BRAS sends the packet of the uplink data service to the corresponding service domain. And the service of the charging, the second IP address of the WiFi terminal carried in the packet carrying the uplink data service is converted into the first IP address of the CPE device, directly through the EPC The route is forwarded to the corresponding service domain. In this way, the WiFi terminal accesses the service domain that is authenticated and/or charged at the application layer, and does not need to pass the BRAS. Therefore, the packet between the WiFi terminal and the service domain does not need to be encapsulated by the CAPWAP tunnel, and the header overhead of the packet is not increased. Improve the transmission efficiency of EPS; At the same time, through intelligent routing of different types of service domains, such as different quintues for different types of service domains that are authenticated and/or billed at the IP layer or application layer, so that CPE can connect WiFi. Different data services of the terminal are mapped to different EPS bearers, and priority scheduling between different service flows is implemented; In one step, the difficulty of implementing and deploying the BRAS and the AAA can be reduced, and the uplink data service initiated by the WiFi terminal can support the dynamic PCC policy and the static QoS policy deployment. Embodiment 3

The embodiment of the present invention provides a device 40 for a WiFi terminal to access different service domains. As shown in FIG. 2, FIG. 3, FIG. 2, FIG. 2 is a network system based on the embodiment, where the WiFi terminal is attached to the AP through the AP. The WLAN communicates with the CPE through the WiFi mode, the CPE communicates with the base station by using an LTE manner, and the base station is connected to multiple service domains corresponding to multiple services through the EPC, so that the system architecture is used to The WiFi terminal communicates with the service domain through the CPE, the base station. The figure shows two settings for the AP (Access Point, WiFi wireless access point) and the CPE of the customer premises equipment. The CPE can integrate the AP function module. As shown in Figure 2, the AP and CPE can also be separated. device of. The device 40 provided in this embodiment is a function in which the CPE is integrated with an AP.

For the application system, the WiFi terminal can be independently charged after accessing the Internet. The WiFi terminal needs to pass the BRAS through the EPS network system, so that the BRAS authenticates and charges the Internet data service record accessed by the WiFi terminal to the authentication and accounting server. The communication between the CPE and the BRAS is performed by the AC (Access Controller, WiFi Access Controller) using the first IP address assigned by the EPC to the CPE, and the CPE communicates with the AC through the CAPWAP tunnel. Then, the AC accesses the BRAS. Of course, the AC and the BRAS can also be one physical device integrated together. The first IP address is the CPE. After the CPE is powered on, the CPE completes the EPC-to-CPE authentication and PDN establishment according to the 3GPP standard procedure. The EPC is the IP address assigned by the CPE.

The BRAS allocates a second IP address to the WiFi terminal through the system architecture of FIG. 2, as shown in FIG. 3. For convenience of description, AC and BRAS are used as two independent devices in the process, and AC and BRAS are implemented in the process. It can be a physical device and implements the functions of independent AC and BRAS devices. The process of assigning a second IP address to a WiFi terminal is as follows:

First, the WiFi terminal sends a DHCP Discovery (Dynamic Host Configuration Protocol) broadcast packet to the CPE. After receiving the DHCP Discovery broadcast packet, the CPE encapsulates the packet in the CAPWAP tunnel and sends the packet to the CPE. The CPE forwards the packet encapsulated by the CAPWAP to the AC. The CPE uses the first IP address assigned by the EPC to the CPE in the packet. The AC performs CAPWAP tunnel decapsulation on the received packet and forwards it to the BRAS. After receiving the DHCP Discovery broadcast message sent by the WiFi terminal, the BRAS returns a DHCP 0FFER to the AC. The AC then encapsulates the DHCP OFFER packet in the CAPWAP tunnel and sends it to the CPE. The CPE decapsulates the DHCP OFFER packet encapsulated in the CAPWAP tunnel and sends it to the WiFi. terminal. After receiving the DHCP OFFER message sent by the BRAS, the WiFi terminal sends a DHCP Request broadcast message to the BRAS. The specific procedure is the same as the process of sending the DHCP Discovery to the BRAS, so that the BRAS assigns the second IP address to the WiFi terminal.

The data services supported by the WiFi terminal include: services for charging at the IP layer and services for authentication at the application layer, such as HSI (High Speed Internet) services for charging at the IP layer, operators' own games, and IMS services. And IPTV services are billed at the application layer. In this embodiment, the device is described as an example in which the AP and the CPE are integrated into the same device CPE/AP. The CPE includes: an obtaining unit 41, a tunnel establishing unit 42, a determining unit 43, an IP layer service processing unit 44, an application layer service processing unit 45, a priority processing unit 46, a bearer mapping unit 47, and a transmitting unit 48.

The obtaining unit 41 is configured to pre-configure an access control list of the uplink data service, or an access control list for dynamically deriving the uplink data service, where the access control list of the uplink data service includes quintuple information of the uplink data service, The quintuple information includes a source address, a destination address, a source port, a destination port, and a protocol number of the uplink data service.

The access control list of the uplink data service obtained by the obtaining unit 41 includes the quintuple information of the uplink data service, where the quintuple information includes the source address of the terminal that initiates the uplink data service, the destination address of the service domain to be accessed, and the initiation Source port of the upstream data service, destination port and protocol number to access the service domain.

The access control list of the uplink data service can be configured in the pre-planning mode and configured in the CPE through various schemes, including: CPE's near-end configuration interface, CPE's remote configuration interface TR069/0MA-DM, DHCP Option, Protocol Configuration Option (PCO) extension, CAPWAP remote management protocol.

The access control list of the uplink data service may also be dynamically derived from the UL-TFT of the CPE. The specific derivation method is to replace the source IP address and the source port with a wildcard (*), and keep the destination IP address, protocol number, and destination port unchanged. . Of course, the quintuple information in the access control list of the uplink data service pre-configured by the access control list obtaining unit 41 may also use a wildcard character (*) instead of the source address and the source port, and only the destination address, the protocol number, and the destination port.

Further, the obtaining unit 41 may also configure priority information of different services when pre-configuring the quintuple information in the access control list of the uplink data service.

The tunnel establishing unit 42 is configured to communicate with the broadband remote access server BRAS through the EPC according to the first IP address allocated by the EPC, establish a CAPWAP tunnel, and connect the WiFi terminal encapsulated by the CAPWAP tunnel with the IP address. Transmitting, by the layer, the service domain that performs authentication and/or charging is sent to the BRAS, and the BRAS is used to interact with the service domain that performs authentication and/or charging at the IP layer. WiFi The terminal is assigned a second IP address.

The BRAS in this implementation refers to a BRAS that includes the function of the AC device, so that a CAPWAP tunnel is established between the CPE and the BRAS, and is used for CAPWAP tunnel encapsulation of the service initiated by the WiFi terminal to perform authentication and/or accounting at the IP layer.

The determining unit 43 is configured to determine, according to the destination address in the quintuple information of the uplink data service, a type of uplink data service initiated by the WiFi terminal.

The destination address information in the access control list of the uplink data service may be used to determine the type of data service of the service domain to be accessed by the WiFi terminal. The data services that the WiFi terminal can support include: IMS, IPTV, HSI, carrier self-operated services, etc., but are not limited thereto. Generally, the operator plans the destination address segment of the different service domains, so that the determining unit 43 can determine that the WiFi terminal is to be determined according to the destination address of the data service initiated by the WiFi terminal and the destination address segment of each data service in the access control list of the uplink data service. The type of business domain that is accessed. For example, the destination address of the IMS service domain is 192. 168. 0. 0-192. 168. 255. 255. If the destination address of the data service to be accessed by the WiFi terminal is 192. 168. 50. 23, the unit is determined. 43: It can be determined that the data service to be accessed by the WiFi terminal is an IMS service domain. For traffic flows that do not match in the uplink control list, the default is HSI service.

The data services that the WiFi terminal can support include HSI, IMS, IPTV, and carrier proprietary services.

Further, after determining the type of the uplink data service initiated by the WiFi terminal, the determining unit 43 may further determine the priority information of the uplink data service initiated by the WiFi terminal according to the priority information of the pre-configured uplink data service.

The IP layer service processing unit 44 is configured to: if the determining unit determines that the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at an IP layer, and adopts the uplink data service The CAPWAP tunnel is encapsulated.

For example, the determining unit 43 parses out the destination address of the service domain to be accessed in the uplink data service message initiated by the WiFi terminal. If the destination address of the data service to be accessed by the WiFi terminal is 1. 10.2.3, the determining unit 44 determines the access control list of the uplink data service to determine that the data service to be accessed by the WiFi terminal is an HSI service. Thus, the IP layer service processing unit 44 encapsulates the uplink data service through a CAPWAP tunnel.

The application layer service processing unit 45 is further configured to: if the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, and the packet carrying the uplink data service is carried by the packet The second IP address of the WiFi terminal is translated to the first IP address of the CPE device.

If the destination address of the data service to be accessed by the WiFi terminal is 192. 168. 50. 23, the determining unit 43 determines that the data service to be accessed by the WiFi terminal is an IMS service. The IMS service performs charging at the application layer, so that the application layer processing unit 45 stores the second IP address of the WiFi terminal carried in the uplink data service packet. Convert to the first IP address of the CPE itself.

The priority processing unit 46 is configured to perform priority scheduling on the uplink data service initiated by the WiFi terminal according to the type of the uplink data service initiated by the WiFi terminal and the priority information of the uplink data service.

Further, in order to better process the multiple uplink data services, the uplink data service access control list obtained by the obtaining unit 41 further includes the priority information of the uplink data service, so that the CPEs correspond to different priorities according to different data service types. The information priority processing unit 46 provides different priority scheduling for different uplink data services, and specifically may adopt a WFQ (Weighted Fair Queuing) congestion management algorithm.

The bearer mapping unit 47 is configured to map the uplink data service initiated by the WiFi terminal to the corresponding bearer according to the QoS mechanism of the EPS.

For example, after the CPE/AP is powered on, the EPC completes the authentication for the CPE/AP according to the 3GPP standard procedure and establishes a PDN connection. The PDN connection corresponds to the default EPS bearer and a dedicated EPS bearer with permanent online demand.

At the same time, the tunnel establishment unit 42 establishes a CAPWAP control channel and a data channel with the AC according to the CAPWAP standard, and the CAPWAP control channel and the data channel are respectively carried on the EPS dedicated bearer corresponding to the CPE/AP, for example, the CAPWAP control channel bearer can be in the EPS dedicated bearer and default. Hosted on.

In this way, if the uplink data service initiated by the WiFi terminal is authenticated and/or charged at the IP layer, the IP layer service processing unit 44 performs CAPWAP encapsulation on the packet of the uplink data service. Then, the bearer mapping unit 47 maps the packet of the uplink data service to the corresponding EPS dedicated bearer according to the QoS mechanism of the EPS.

If the uplink data service initiated by the WiFi terminal is authenticated and/or charged at the application layer, since the uplink data service initiated by the WiFi terminal does not access the corresponding service domain through the BRAS, the bearer mapping unit 47 according to the EPS QoS mechanism The uplink data service described above is mapped to the corresponding bearer. For example, the IMS service, the bearer mapping unit 47 maps the IMS signaling flow to the Non-GBR bearer with QCI=5, the IMS media voice stream is mapped to the dedicated GBR bearer with QCI=1, and the IMS media video stream can be mapped to QCI=2. The dedicated GBR is carried on. Such different uplink data services are mapped to different bearers, so that the EPS can provide different QoS to different uplink data services.

Of course, the foregoing bearer mapping is only for the case of establishing a PDN between the CPE and the EPC. If multiple PDNs are established between the CPE and the EPC, the EPC allocates an IP for each PDN connection for the CPE for each PDN. address. For example, there are three PDN connections established between the CPE and the EPC, so that the EPC will assign three IP addresses to the CPE. After the CPE receives the uplink data service message initiated by the WiFi terminal, according to the type of the uplink data service, if the type of the uplink data service is an IMS service that performs charging at the application layer, the CPE selects the first IMS service. A PDN connection. Correspondingly, the CPE converts the second IP address of the WiFi terminal carried in the uplink data service message into the IP address of the first PDN of the CPE. The sending unit 48 is configured to transparently transmit the packet of the uplink data service encapsulated by the CAPWAP tunnel to the BRAS, and send the packet of the uplink data service to the corresponding service domain; or The packet carrying the uplink data service of the first IP address of the CPE device is directly forwarded to the corresponding service domain by using the EPC direct route.

The CPE does not need to perform CAPWAP tunnel encapsulation for the data service initiated by the WiFi terminal, so that the data service that is charged at the application layer does not need to be encapsulated into the corresponding service domain. Services such as IMS and VoIP will greatly reduce the overhead of the data service packet and improve the transmission efficiency of the EPS. And because the CPE/AP converts the second IP address of the WiFi terminal into the first IP address of the CPE, The EPC can sense the data service initiated by the WiFi terminal, so that the WiFi terminal can utilize the bearer mapping mechanism of the EPS, so that priority scheduling of different services can be implemented.

Further, if the AP and the CPE are two separate devices, the AP and the CPE can implement the functions of the CPE integrated with the AP function. Specifically, the AP and the CPE can be connected to each other through an Ethernet interface. The CPE can assign a private network IP address to the AP through DHCP packets. In this form, the access control list of the uplink data service can be remotely configured in the AP through a remote management protocol such as CAPWAP or a local management interface of the AP. After receiving the uplink data service message sent by the WiFi terminal, the AP can determine the service type of the uplink data service initiated by the WiFi terminal according to the access control list of the uplink data service.

If the uplink data service initiated by the WiFi terminal is the data service for charging at the application layer, the AP carries the uplink data service message of the second IP address of the WiFi terminal and the service type of the uplink data service initiated by the WiFi terminal through the Ethernet interface. The encapsulated packet is sent to the CPE. The source IP address of the packet is the private IP address assigned by the CPE to the AP.

If the uplink data service initiated by the WiFi terminal is a data service for charging at the IP layer, the uplink data service message carrying the second IP address of the WiFi terminal initiated by the WiFi terminal and the data of the uplink data service initiated by the WiFi terminal The service type is encapsulated into a CAPWAP packet and sent to the CPE through the CAPWAP tunnel. The outer source IP address of the CAPWAP packet is the private network address assigned by the CPE to the AP. After receiving the CAPWAP packet, the IP plane processing unit 44 converts the outer source IP address of the CAPWAP into the first IP address of the CPE, and then transparently transmits the packet to the EPC and then sends the packet to the AC. The AC decapsulates the CAPWAP packet and forwards it to the BRAS.

The application layer processing unit 45 of the CPE converts the second IP address of the WiFi terminal carried in the uplink data service message, which is initiated by the WiFi terminal, into the first IP address of the CPE, so that the CPE is in the uplink data service message. The first IP address of the CPE, the data service initiated by the WiFi terminal may be mapped to the corresponding EPS bearer; and the data service for charging at the IP layer is initiated by the WiFi terminal encapsulated by the CAPWAP The data service message carries the second IP address of the WiFi terminal, such that the IP layer service processing unit 44 maps the data service initiated by the WiFi terminal to another bearer. Therefore, priority scheduling between upstream and downstream flows of different services can be implemented at the EPS bearer layer, and different QoS (Quality of System) levels between different uplink data service flows are guaranteed.

Further, in the prior art, in order to solve the problem of separate authentication and/or charging for the WiFi terminal, the WiFi terminal must access the BRAS when accessing the service for charging at the application layer, thereby failing to support the dynamic PCC (Policy Control) And Charging, Policy Control and Accounting) Issues with policy and static QoS policy deployment. In the embodiment, the WiFi terminal accesses the service at the application layer, such as the IMS service, and the processing unit 44 converts the source address in the uplink data service message initiated by the WiFi terminal to the first IP address of the CPE, so that the EPC side Can be perceived. When the IMS triggers the establishment of a dedicated EPS bearer to the P-GW (Packet Data Network Gateway) through the PCRF (Policy and Charging Rules Function), the P-GW can be associated with the EPS bearer of the CPE. Thus, dynamic PCC policies and static QoS policy deployment can be supported.

Further, in this implementation, the second IP address is allocated to the WiFi terminal through the BRAS, and the WiFi terminal accesses the service domain that is charged in the IP layer through the BRAS, so that the application system can separately charge the WiFi terminal; and the WiFi terminal passes the EPC. Accessing the application domain charging service domain, the service domain performs application layer charging on the WiFi terminal, thus implementing the application system to perform separate charging for different services accessed by the WiFi terminal, thereby avoiding the WiFi terminal passing the BRAS. When accessing all the different service domains, the BRAS must deduct the cost of the services that are also charged at the application layer after all services are charged. This in turn reduces the difficulty of implementing and deploying BRAS and AAA (Authentication, Authorization, Accounting, Authentication, Authorization, and Statistics) servers.

The device for accessing different service domains by the WiFi terminal is provided by the embodiment of the present invention, and the determining unit determines the type of the uplink data service initiated by the WiFi terminal, and the difference is initiated by the IP layer service processing unit or the application layer service processing unit to the WiFi terminal. The data service performs intelligent routing, such as the service of authenticating and/or charging at the IP layer, and the IP layer service processing unit encapsulates the packet carrying the uplink data service through the CAPWAP tunnel and transparently transmits the packet. After the EPC, the BRAS is sent, and the BRAS sends the packet of the uplink data service to the corresponding service domain. For the service layer authentication and/or accounting, the application layer service processing unit carries the report of the uplink data service. Converting the second IP address of the WiFi terminal carried in the text to the first IP address of the CPE device, Forwarding to the corresponding service domain through the EPC direct route. In this way, the WiFi terminal accesses the service domain that is authenticated and/or charged at the application layer, and does not need to pass the BRAS. Therefore, the packet between the WiFi terminal and the service domain does not need to be encapsulated by the CAPWAP tunnel, and the header overhead of the packet is not increased. Improve the transmission efficiency of EPS. At the same time, intelligent routing of different types of service domains, the quintuple of different service domains is different, so that the CPE can map different data services of the WiFi terminal to different EPS bearers, and realize different service flows. Priority scheduling between.

Further, the difficulty of implementing and deploying the BRAS and the AAA can be reduced, and the uplink data service initiated by the WiFi terminal can support the dynamic PCC policy and the static QoS policy deployment.

Further, the CPE can also perform different priority scheduling for multiple different service domains initiated by the WiFi terminal through its own priority configuration for different service domains.

A person skilled in the art can understand that all or part of the steps of implementing the foregoing method embodiments may be performed by using hardware related to program instructions (such as various processing chips, CPU, DSP, FPGA, etc.), and the foregoing program may be stored in a computer. The readable storage medium, when executed, executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: various media that can store program codes, such as wake-up, response, disk or optical disk. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Rights request

A method for a WiFi terminal to access a different service domain, wherein the CPE and the WiFi terminal communicate with each other through a WiFi mode, and the CPE and the base station pass a long-term evolution. The LTE mode is used for communication, and the base station is connected to multiple service domains corresponding to the plurality of services through the EPC of the evolved packet core network, and the base station is configured to enable the WiFi terminal to pass the CPE, the base station, and the EPC. Communicating with the service domain, where the method includes:

If the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, converting the second IP address of the WiFi terminal carried in the packet carrying the uplink data service into Said

The first IP address of the CPE device is forwarded to the corresponding service domain by using the EPC direct route to the packet carrying the uplink data service of the first IP address of the CPE device.

The method according to claim 1, wherein before the determining the data service type of the uplink data service initiated by the WiFi terminal, the method further includes: pre-configuring an access control list of the uplink data service; or dynamically deriving An access control list of the uplink data service;

The access control list of the uplink data service includes quintuple information of the uplink data service, where the quintuple information includes a source address, a destination address, a source port, a destination port, and a protocol number of the uplink data service;

The determining the data service type of the uplink data service initiated by the WiFi terminal is specifically determining the type of the uplink data service initiated by the WiFi terminal according to the destination address in the quintuple information of the uplink data service.

The method according to claim 2, wherein before the packet of the uplink data service encapsulated by the CAPWAP tunnel is transparently transmitted to the BRAS after being sent to the BRAS, the method further includes:

The uplink data service initiated by the WiFi terminal is mapped to the corresponding bearer according to the QoS mechanism of the EPS.

The method according to claim 2, wherein the packet carrying the uplink data service carrying the first IP address of the CPE device is forwarded to the corresponding service through the EPC direct route. Before the domain, it also includes:

The method according to claim 3 or 4, wherein the mapping the uplink data service initiated by the WiFi terminal to the corresponding bearer according to the QoS mechanism of the EPS is:

If the first uplink data service initiated by the WiFi terminal is allocated to a PDN connection among the plurality of PDNs established between the CPE and the EPC, the uplink data service initiated by the WiFi terminal is allocated according to the QoS of the EPS on the allocated PDN connection. The mechanism maps to the corresponding bearer.

The method according to claim 2, wherein the access control list of the pre-configured uplink data service further includes: priority information of the uplink data service;

And performing priority scheduling on the uplink data service initiated by the WiFi terminal according to the type of the uplink data service or the uplink data service initiated by the WiFi terminal and the priority information of the uplink data service.

A user equipment CPE, wherein the CPE communicates with the WiFi terminal through a WiFi mode, and the CPE communicates with the base station by using a long-term evolution LTE mode, and the base station passes the evolved packet core network EPC. The plurality of service domains respectively corresponding to the plurality of services are connected to each other, and the WiFi terminal is configured to communicate with the service domain by using the CPE, the base station, and the EPC, where the CPE includes:

The application layer service processing unit is configured to: if the determining unit determines that the uplink data service initiated by the WiFi terminal is a data service type that is authenticated and/or charged at the application layer, carries the packet carrying the uplink data service. Converting the second IP address of the WiFi terminal to the first IP address of the CPE device; a sending unit, configured to transparently transmit the packet of the uplink data service encapsulated by the CAPWAP tunnel to the BRAS, and send the packet of the uplink data service to a corresponding service domain; or

The device according to claim 7, further comprising: an obtaining unit, configured to pre-configure an access control list of the uplink data service; or

An access control list for dynamically deriving uplink data services;

The determining unit is specifically configured to determine, according to the destination address in the quintuple information of the uplink data service, a type of uplink data service initiated by the WiFi terminal.

The device according to claim 8, further comprising: a bearer mapping unit, configured to map the uplink data service initiated by the WiFi terminal to a corresponding bearer according to an QoS mechanism of the EPS.

The device according to claim 9, wherein the bearer mapping unit is specifically configured to: if the uplink data service initiated by the WiFi terminal is allocated to a PDN connection among multiple PDNs established between the CPE and the EPC Will be described

The uplink data service initiated by the WiFi terminal is mapped to the corresponding bearer according to the EPS QoS mechanism on the allocated PDN connection.

The device according to claim 7, wherein the access control list of the uplink data service pre-configured by the acquiring unit further includes: priority information of the uplink data service;

The priority processing unit is configured to perform priority scheduling on the uplink data service initiated by the WiFi terminal according to the type of the uplink data service or the uplink data service initiated by the WiFi terminal and the priority information of the uplink data service. .