CN103428779A

CN103428779A - Transmission method and system of information of quality of service and fixed network access gateway

Info

Publication number: CN103428779A
Application number: CN201210152056XA
Authority: CN
Inventors: 尤建洁; 朱春晖
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2013-12-04
Anticipated expiration: 2032-05-16
Also published as: CN103428779B

Abstract

The invention discloses a transmission method and system of information of quality of service (QoS) and a fixed network access gateway. The method includes the following steps: in a fixed mobile convergence scene with the fixed network access gateway, the fixed network access gateway receives the information of QoS of user equipment (UE) from a packet data network gateway (PDN-GW), and sends the information of QoS of the UE to a broadband network gateway (BNG) through a fixed network authentication, authorization and accounting (AAA) server. According to the transmission method and system of the information of QoS and the fixed network access gateway, the QoS strategy control problem occurring when the fixed network access gateway is led into network architecture in a relative technique is solved, and stability and processing efficiency of the system are improved.

Description

Transmission method and system of service quality information and fixed network access gateway

Technical Field

The present invention relates to the field of communications, and in particular, to a method and a system for transmitting Quality of Service (QoS) information, and a fixed network access gateway.

Background

With the development of network technology and the requirement of users for services, terminals are increasingly multi-modal, and can be accessed in different types of access networks to carry diversified services. Different network connections have different characteristics and transmission capabilities, so that the requirement of multiple services and diversity of users can be better met. The multimode terminal may implement seamless connection between different types of Radio access Networks, such as connection between a cellular UMTS (Universal Mobile telecommunications System)/EDGE (Enhanced Data Rate for GSM Evolution )/GPRS (General Packet Radio Service) and IEEE (Institute of Electrical and Electronics Engineers) 802.11WLAN (Wireless Local Area network). WLANs can provide high data rates in small home and hot spot areas, while cellular networks can provide greater flexibility and ubiquitous coverage, but at lower data rates, users would benefit from combining the advantages of both. In the coverage area of the WLAN access point, the multimode terminal performs data access and VoIP (Voice over Internet Protocol) application using the WLAN, and also performs Voice call or media access using the overlapping cellular network.

Currently, standardization work of FMC (fixed network Convergence) is being performed by BBF (Broadband Forum) and 3GPP, and a related scenario includes authentication, address allocation and policy control of 3GPP ue (user equipment) accessing from BBF network through RG (Residential Gateway). In the Authentication process, 3GPP UE initiates access Authentication to RG as 802.1x customer Service, and at this time, RG serves as 802.1x authenticator and RADIUS (Remote Authentication Dial In User Service), and the customer Service initiates an Authentication request to BBF AAA (Authentication Authorization Accounting) server. In the address request process, an address request message initiated by the 3GPP UE requests an IP address from a PDN-GW (Packet Data Network Gateway) via a BNG (Broadband Network Gateway). The S2a session is established between the BNG and the PDN-GW, and is implemented by a GTP (GPRS tunneling Protocol, GPRS (General Packet Radio Service) tunneling Protocol) or Proxy Mobile Internet Protocol (PMIP) tunnel.

In the related art, since each user BNG needs to establish an S2a session with the PDN-GW, all BNG devices need to be upgraded to support the scenario in the existing network, which has a large impact on the existing network. To solve this problem, a fixed network access Gateway (e.g., BWAG (BBF WLAN access Gateway)) is cited. Fig. 1 is a diagram illustrating an FMC architecture according to the related art, and is a diagram illustrating a network structure after BWAG is introduced, as shown in fig. 1.

However, although the BNG device can be upgraded on a large scale without introducing the fixed network access gateway, and the influence on the current network is reduced as much as possible, in the related art, no corresponding specification is provided for how to apply the BNG device after introducing the fixed network access gateway, and especially, the influence on the BNG device and the BBFAAA device is not considered yet.

In order to solve the problem of how to solve QoS policy control by introducing a fixed network access gateway into a network architecture in the related art, no effective solution has been proposed at present.

Disclosure of Invention

The present invention provides a QoS information transmission scheme to at least solve the problem of how to introduce a fixed network access gateway to solve QoS policy control in the network architecture in the related art.

To achieve the above object, according to an aspect of the present invention, there is provided a transmission method of QoS information.

The QoS information transmission method according to the embodiment of the invention comprises the following steps: under a fixed mobile network convergence scene of introducing a fixed network access gateway, the fixed network access gateway receives QoS information of UE from PDN-GW; and the fixed network access gateway sends the QoS information of the UE to the BNG through the fixed network AAA server.

Preferably, before the fixed network access gateway receives the QoS information of the UE from the PDN-GW, the method further includes: and the fixed network access gateway establishes a session with the PDN-GW and establishes a tunnel.

Preferably, the fixed network access gateway creates a session with the PDN-GW and establishes the tunnel, and after the UE is authenticated by the home network, the method further comprises at least one of: a fixed network access gateway receives an attachment request message of UE from a fixed network AAA server, wherein the attachment request message carries subscription information of the UE; after receiving the IPv4 address request message from the BNG, the fixed network access gateway acquires the subscription information of the UE by sending a query request message to the fixed network AAA server.

Preferably, in a case where the fixed network access gateway receives an attach request message from the UE of the fixed network AAA server, the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: and the fixed network access gateway receives the IP address of the UE and the QoS information of the UE from the PDN-GW.

Preferably, in a case where the fixed network access gateway receives an attach request message of the UE from the fixed network AAA server, the fixed network access gateway sending the QoS information of the UE to the BNG through the AAA server includes: the fixed network access gateway carries QoS information of the UE in an attachment success response message replying the fixed network AAA server; and the fixed network AAA server carries the QoS information of the UE in the authentication response message replying the BNG.

Preferably, in a case where the fixed network access gateway receives an attach request message from the UE of the fixed network AAA server, the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: the fixed network access gateway receives an IPv4 address of the UE and QoS information of the UE from the PDN-GW; the fixed network access gateway sends the QoS information of the UE to the BNG through the AAA server, and the QoS information comprises the following steps: the fixed network access gateway carries the IPv4 address and the QoS information of the UE in an attachment success response message replying to the fixed network AAA server, and the fixed network AAA server carries the IPv4 address and the QoS information of the UE in a RADIUS access response message replying to the BNG.

Preferably, when the fixed network access gateway obtains the subscription information of the UE by sending an inquiry request message to the fixed network AAA server after receiving the IPv4 address request message from the BNG, the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: the fixed network access gateway receives an IPv4 address of the UE and QoS information of the UE from the PDN-GW; the fixed network access gateway sends the QoS information of the UE to the BNG through the AAA server, and the QoS information comprises the following steps: and the fixed network access gateway sends a QoS providing message to a fixed network AAA server, and the fixed network AAA server forwards the QoS providing message to a BNG message, wherein the QoS providing message carries the IPv4 address and the QoS information of the UE.

Preferably, after the fixed network access gateway sends the QoS information of the UE to the BNG through the fixed network AAA server, the method further includes: the BNG establishes a default bearer for the UE after authentication according to the QoS information of the UE; alternatively, the BNG performs admission control on the QoS information of the UE.

Preferably, before the fixed network access gateway receives the QoS information of the UE from the PDN-GW, the method further includes: the PDN-GW triggers locally or by an event from outside the UE to change the QoS information of the UE.

Preferably, in case that the PDN-GW triggers locally or an event from outside triggers a change of the QoS information of the UE, the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: a fixed network access gateway receives a bearer establishment request message from a PDN-GW, wherein the bearer establishment request message carries the changed QoS information of UE; the fixed network access gateway sends the QoS information of the UE to the BNG through the AAA server, and the QoS information comprises the following steps: after receiving the bearer request message, the fixed network access gateway sends an admission control request message to the BNG through the fixed network AAA server, wherein the admission control request message is used for determining whether the changed QoS information of the UE is admitted or not; and after receiving the admission control request message, the BNG makes an admission control decision according to the current resource availability so as to determine whether to admit the changed QoS information of the UE.

In order to achieve the above object, according to another aspect of the present invention, a fixed network access gateway is provided.

The fixed network access gateway according to the embodiment of the invention comprises: the device comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving QoS information of user equipment UE from a packet data network gateway PDN-GW under a fixed mobile network convergence scene of introducing a fixed network access gateway; and the sending module is used for sending the QoS information of the UE received by the receiving module to the broadband network gateway BNG through the fixed network authentication authorization accounting AAA server.

To achieve the above object, according to still another aspect of the present invention, there is provided a transmission system of QoS information.

The QoS information transmission system according to the embodiment of the invention comprises a PDN-GW, a fixed network AAA server, a BNG and the fixed network access gateway.

According to the invention, the PDN-GW transmits the QoS information of the UE to the BNG according to the predetermined path under the fixed mobile network convergence scene of introducing the fixed network access gateway, so that the problem of how to solve QoS strategy control by introducing the fixed network access gateway in a network architecture in the related technology is solved, and the stability and the processing efficiency of the system are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a diagram of an FMC architecture according to the related art;

fig. 2 is a flowchart of a transmission method of QoS information according to an embodiment of the present invention;

fig. 3 is a block diagram of a fixed network access gateway according to an embodiment of the present invention;

fig. 4 is a block diagram of a transmission system of QoS information according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating user authentication and IP address assignment according to a first embodiment of the present invention;

FIG. 6 is a flowchart of user authentication and IPv4 address assignment according to a second embodiment of the present invention;

fig. 7 is a flowchart of user authentication and IPv4 address allocation according to a third embodiment of the present invention;

fig. 8 is a flowchart of admission control for a user resource request according to a fourth embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

According to the embodiment of the invention, a transmission method of QoS information is provided. Fig. 2 is a flowchart of a QoS information transmission method according to an embodiment of the present invention, as shown in fig. 2, the method including the steps of:

step S202, under the scene of fixed mobile network convergence of the fixed network access gateway, the fixed network access gateway receives QoS information of UE from PDN-GW;

step S204, the fixed network access gateway sends the QoS information of the UE to the broadband network gateway BNG through the fixed network AAA server.

Through the steps, the PDN-GW transmits the QoS information of the UE to the BNG according to the preset path in the fixed mobile network convergence scene of introducing the fixed network access gateway, so that the problem of how to solve QoS strategy control by introducing the fixed network access gateway in a network architecture in the related technology is solved, and the stability and the processing efficiency of the system are improved.

It should be noted that the QoS information in the embodiment of the present invention includes QoS parameters and/or QoS policies.

In the implementation process, in a fixed mobile network convergence scenario in which a fixed network access gateway is introduced, the PDN-GW may transmit QoS information of the UE to the BNG according to a predetermined path, and the BNG establishes an authenticated default bearer for the UE according to the QoS information of the UE, or performs admission control on the QoS information of the UE by using the BNG, where the predetermined path is from the PDN-GW to the fixed network access gateway, then from the fixed network access gateway to the fixed network AAA server, and then from the fixed network AAA server to the BNG.

Preferably, before step S202, the fixed network access gateway creates a session with the PDN-GW and establishes a tunnel. Before this, after the UE is authenticated by the home network, there may be the following scenario:

a first scenario is that a fixed network access gateway receives an attach request message of UE from a fixed network AAA server, wherein the attach request message carries subscription information of the UE;

in scenario two, after receiving the IPv4 address request message (e.g., DHCP Discover message) from the BNG, the fixed network access gateway obtains subscription information of the UE by sending an inquiry request message to the fixed network AAA server.

Preferably, in scene one, step S202 may include: the fixed network access gateway carries QoS information of the UE in an attachment success response message replying the fixed network AAA server; and the fixed network AAA server carries the QoS information of the UE in the authentication response message replying the BNG. In the implementation process, the PDN-GW may provide the IP address of the UE and the QoS information of the UE to the fixed network access gateway, and the PDN-GW transfers the IP address of the UE and the QoS information together to the fixed network access gateway in the same manner as the QoS information of the UE is transferred.

In scenario two, step S202 may include: the fixed network access gateway receives an IPv4 address of the UE and QoS information of the UE from the PDN-GW; the fixed network access gateway carries the IPv4 address and the QoS information of the UE in an attachment success response message replying the fixed network AAA server; and the fixed network AAA server carries the IPv4 address and the QoS information of the UE in a RADIUS access response message replying to the BNG.

In scenario two, step S202 may further include: the PDN-GW provides an IPv4 address of the UE and QoS information of the UE to a fixed network access gateway; the fixed network access gateway sends a QoS provisioning message (for example, newly defining a QoS Profile discovery) to the fixed network AAA server, and the fixed network AAA server forwards the QoS provisioning message to the BNG message, wherein the QoS provisioning message carries the IPv4 address and the QoS information of the UE.

The implementation method of the preferred embodiment is simple and practical, has strong operability, and provides an implementation mode for transmitting QoS information from PDN-GW to BNG under different scenes.

Preferably, after step S204, the BNG may establish an authenticated default bearer for the UE according to the QoS information of the UE; alternatively, the BNG performs admission control on the QoS information of the UE. The method improves the utilization rate of QoS and the processing capacity of the system.

Preferably, before step S202, the PDN-GW triggers the change of the QoS information of the UE locally, or the PDN-GW triggers the change of the QoS information of the UE by an event from the outside. If the PDN-GW triggers locally or an event from the outside triggers a change of the QoS information of the UE, in step S202, the PDN-GW may send a bearer establishment request message (i.e., establish a dedicated bearer) to the fixed network access gateway, where the bearer establishment request message carries the changed QoS information of the UE; after receiving the bearer request message, the fixed network access gateway sends an admission control request message to the BNG through the fixed network AAA server, wherein the admission control request message is used for determining whether the changed QoS information of the UE is admitted or not; after receiving the admission control request message, the BNG makes an admission control decision according to the current resource availability to determine whether to admit the changed QoS information of the UE. The preferred embodiment relates to how the updated QoS is informed to the BNG when the QoS information is updated, so that the BNG can make admission control decisions according to the current resource availability, improving the processing capacity of the system.

Corresponding to the method, the embodiment of the invention provides a fixed network access gateway. Fig. 3 is a block diagram of a fixed network access gateway according to an embodiment of the present invention, and as shown in fig. 3, the fixed network access gateway 30 includes: a receiving module 32, configured to receive QoS information of the UE from the PDN-GW in a fixed mobile network convergence scenario in which a fixed network access gateway is introduced; and a sending module 34, coupled to the receiving module 32, for sending the QoS information of the UE received by the receiving module 32 to the BNG through the fixed-network AAA server.

In addition, the embodiment of the invention also provides a QoS information transmission system. Fig. 4 is a block diagram of a transmission system of QoS information according to an embodiment of the present invention, and as shown in fig. 4, the system includes a PDN-GW42, a fixed network access gateway 30 (described below by taking BWAG 44 as an example), a fixed network AAA server 46, and a BNG 48. Each module is described in detail below.

The PDN-GW42 includes: a transmission module 422, configured to transmit QoS information of the UE to the BNG48 according to a predetermined transmission path in a fixed mobile network convergence scenario in which the BWAG 44 is introduced, where the predetermined transmission path is from the PDN-GW to the fixed network access gateway, then from the fixed network access gateway to the fixed network AAA server 46, and then from the fixed network AAA server 46 to the BNG 48;

BWAG 44 comprises: a first transceiving module 442, coupled to the transmission module 422, for receiving the QoS information of the UE from the PDN-GW and sending the QoS information of the UE to the fixed-network AAA server 46;

the fixed network AAA server 46 includes: a second transceiving module 462, coupled to the first transceiving module 442, for receiving the QoS information of the UE from the BWAG 44 and transmitting the QoS information of the UE to the BNG 48; and

BNG48 includes: an establishing module 482, coupled to the second transceiver module 462, configured to establish a default bearer for the UE after authentication according to the QoS information of the UE received from the fixed-network AAA server 46; or the control module 484, coupled to the second transceiving module 462, for performing admission control on the QoS information of the UE received from the fixed-network AAA server 46.

Through the system, the PDN-GW42, in a fixed mobile network convergence scenario in which a fixed network access gateway is introduced, transmits QoS information of the UE to the BNG according to a predetermined path, so that the BNG48 may establish an authenticated default bearer for the UE according to the received QoS information of the UE from the fixed network AAA server 46; or the admission control is carried out on the QoS information of the UE received from the fixed network AAA server 46, the problem of how to solve the QoS strategy control by introducing the fixed network access gateway into the network architecture in the related technology is solved, and the stability and the processing efficiency of the system are improved.

The following description is made in connection with a number of preferred embodiments described above.

Aiming at the problem of how to solve QoS policy control by introducing a fixed network (e.g., WLAN) access gateway into an FMC network architecture in the related art, the preferred embodiment provides an admission control method in a fixed mobile network convergence scenario to solve the problem.

The method comprises the following steps: BBFAAA (i.e., fixed network AAA server) triggered tunnel establishment: after authentication is successful, the QoS parameters/policy delivery path: and P-GW- > BWAG- > BBF AAA- > BNG, and establishing default load.

For example, after receiving the QoS parameter/policy of the mobile network User Equipment (UE) sent by the mobile network gateway (PDN-GW), the fixed network WLAN access gateway (BWAG, that is, the fixed network access gateway) sends the QoS parameter/policy to the fixed network AAA; the fixed network AAA sends the received QoS parameters/strategies to the broadband network gateway BNG; the BNG establishes a default bearer for the UE according to the received QoS parameters/policies.

Specifically, after the UE accessed from the fixed network passes the authentication of the home network, the PDN-GW may send the QoS parameter/policy of the UE to the BWAG through the tunnel; BWAG carries the QoS parameter/tactics in replying the attachment success response message of AAA; the AAA carries the QoS parameters/strategies in the authentication response message replying the BNG.

The second method comprises the following steps: tunnel establishment triggered by DHCP Discover (IPv 4): after authentication is successful, the QoS parameters/policy delivery path: and P-GW- > BWAG- > BBF AAA- > BNG, and establishing default load.

For example, in method 2.1, after a mobile network User Equipment (UE) accessed from a fixed network passes authentication, an IPv4 address request message is initiated, and a Broadband Network Gateway (BNG) sends the address request message of the UE to a fixed network AAA; the fixed network AAA sends the address request message to a fixed network WLAN access gateway (BWAG, namely the fixed network access gateway), wherein the address request message carries subscription information of a user; BWAG and a mobile network gateway (PDN-GW) establish a tunnel; PDN-GW sends QoS parameters/strategies of UE to BWAG; simultaneously providing the IPv4 address of the UE; BWAG sends QoS parameter/strategy of UE to fixed network AAA; the fixed network AAA sends the received QoS parameters/policies and IPv4 addresses to a Broadband Network Gateway (BNG); the BNG establishes a default bearer for the UE according to the received QoS parameters/policies.

Method 2.2, after passing authentication, mobile network User Equipment (UE) accessed from a fixed network initiates an IPv4 address request message, and a Broadband Network Gateway (BNG) forwards the address request message of the UE to a fixed network WLAN access gateway (BWAG); BWAG interacts with fixed network AAA to obtain the subscription information of UE; BWAG and a mobile network gateway (PDN-GW) establish a tunnel; PDN-GW sends QoS parameters/strategies of UE to BWAG; simultaneously providing the IPv4 address of the UE; BWAG sends QoS parameter/strategy of UE to AAA; the fixed network AAA sends the received QoS parameters/strategies to the broadband network gateway BNG; the BNG establishes a default bearer for the UE according to the received QoS parameters/policies. In the implementation process, the communication between BWAG- > BBFAAA- > BNG is not RADIUS message at the time of authentication, and a new message pair (named QoS Profile provisioning here) needs to be redefined.

The third method comprises the following steps: a Policy and Charging Rules Function (Policy and Charging Rules Function, abbreviated PCRF) or a PDN-GW triggers establishment of a dedicated bearer for the UE, a BNG performs admission control, and QoS parameters/Policy transfer paths: P-GW- > BWAG- > BBF AAA- > BNG.

For example, after receiving the QoS parameter/policy of the mobile network User Equipment (UE) sent by the mobile network gateway (PDN-GW), the fixed network WLAN access gateway (BWAG, that is, the fixed network access gateway) sends the QoS parameter/policy to the fixed network AAA; the fixed network AAA sends the received QoS parameters/strategies to a Broadband Network Gateway (BNG); the BNG performs admission control on the UE according to the received QoS parameters/strategies; the BNG judges whether to accept the resource request of the UE or not according to the current resource availability and the user subscription information.

Specifically, after the UE accessed from the fixed network passes the authentication of the home network, a mobile network element (PDN-GW) or a PCRF provides QoS parameters/policies for the services accessed by the UE, and the PDN-GW sends the QoS parameters/policies to a BWAG through a tunnel-based "setup bearer request" message; BWAG sends the admission control request message to AAA of the fixed network, carry the above-mentioned QoS parameter/tactics; the AAA sends an admission control request message to the BNG carrying the QoS parameters/policies described above.

Further, if the BNG decision result is the resource request for admitting the UE, the BNG returns an admission response message to the AAA, the AAA returns an admission response message to the BWAG, and the BWAG returns a "setup bearer response" message to the PDN-GW, where the setup response message carries an admission indication; if the BNG decision result is to reject the resource request of the UE, the BNG returns a reject response message to the AAA, the AAA returns a reject response message to the BWAG, and the BWAG returns a ' setup bearer response ' message to the PDN-GW, wherein the setup bearer response ' message carries a reject indication.

The implementation of the above embodiments will be described in detail below with reference to the preferred embodiments and the accompanying drawings.

Example one

The embodiment provides a method for user authentication and IP address allocation of 3GPP UE accessed from a fixed network. Fig. 5 is a flowchart of a first embodiment of user authentication and IP address assignment according to the present invention, as shown in fig. 5, the flowchart includes steps S501 to S513:

step S501, the 3GPP UE sends an authentication protocol Start (EAPoL-Start) message to the RG, and performs authentication through an 802.1X protocol. The UE is an 802.1X client and the RG is an 802.1X authenticator.

Step S502, after receiving the EAPoL Start message sent by the UE, the RG sends an authentication protocol ID Request (EAP INDENITY REQUEST) message to the UE for informing the UE to report the user name. After receiving the EAP Identity Request message sent by the RG, the UE replies an authentication protocol ID Response (EAP Identity Response) message to the RG, where the message carries the user name. Subsequently, the RG encapsulates the received EAP Identity Response message into an authentication Access Request (RADIUS Access Request) message, and sends the RADIUS Access Request message to the BNG.

Step S503, BNG as RADIUS Proxy sends RADIUS Access Request message received from RG to BBF AAA.

Step S504, the BBF AAA forwards the RADIUS Access Request message received from the BNG to the 3GPP AAA according to the Network Address Identifier (NAI) of the UE. If the BBF network uses the RADIUS protocol and the 3GPP network uses the DIAMETER protocol, a TA (Translation Agent) exists between the BBFAAA and the 3GPP aaa for protocol conversion.

Step S505, the BBF AAA sends an attach request message of the UE to the BWAG, where the attach request message carries subscription information of the UE.

Step S506, the BWAG and the PDN gateway of the 3GPP network establish a conversation, and establish a tunnel.

Step S507, the PDN gateway provides the BWAG with the IP address of the UE (which may be an IPv4 address or an IPv6 address), and the QoS parameters/policies.

Step S508, BWAG replies the successful message of UE attachment to BBF AAA, wherein carry IP address of UE, and QoS parameter/tactics.

Step S509, the BBF AAA sends an authentication success response message of the UE to the BNG, where the authentication success response message carries the IP address of the UE and the QoS parameter/policy.

Step S510, the BNG establishes a default bearer for the UE according to the received QoS parameter/policy of the UE, and simultaneously the BNG sends an authentication success response message of the UE to the RG.

Step S511, the RG replies an authentication success response message to the UE.

Step S512, the UE sends an address request message, such as a dynamic host configuration protocol discovery (DHCP Discover) message or a routing Request (RS) message (the RS message is optional), to the RG.

Step S513, after receiving the address request message initiated by the UE, the BNG sends the IP address of the UE to the UE. Such as DHCP Offer or Route Advertisement (RA) messages.

Example two

The embodiment provides a method for user authentication and IPv4 address allocation of 3GPP UE accessed from a fixed network. Fig. 6 is a flowchart of a user authentication and IPv4 address allocation process according to a second embodiment of the present invention, and as shown in fig. 6, the process includes steps S601 to S612:

step S601, the 3GPP UE sends an authentication protocol Start (EAPoL-Start) message to the RG, and carries out authentication through an 802.1X protocol. The UE is an 802.1X client and the RG is an 802.1X authenticator.

Step S602, after receiving the EAPoL Start message sent by the UE, the RG sends an authentication protocol ID Request (eapriority Request) message to the UE, for notifying the UE to report the user name. After receiving the EAP Identity Request message sent by the RG, the UE replies an authentication protocol ID Response (EAP Identity Response) message to the RG, where the message carries the user name. Subsequently, the RG encapsulates the received EAP Identity Response message into an authentication Access Request (RADIUS Access Request) message, and sends the RADIUS Access Request message to the BNG.

Step S603, the BNG serves as a RADIUS Proxy to send the RADIUS Access Request message received from the RG to the BBF AAA.

Step S604, the BBF AAA forwards the RADIUS Access Request message received from the BNG to the 3GPP AAA according to the Network Address Identifier (NAI) of the UE. If the BBF network uses RADIUS protocol and the 3GPP network uses DIAMETER protocol, a TA (Translation Agent) exists between the BBF AAA and the 3GPP AAA for protocol conversion.

If the 3GPP UE is successfully authenticated in the 3GPP AAA, the 3GPP AAA replies an authentication success response message to the BBF AAA, further, the BBF replies to the BNG, the BNG replies to the RG, and the RG replies to the UE.

Step S605, the UE sends a DHCP Discover message and requests an IPv4 address; if the RG is of the routing type, the RG relays the message to the BNG.

Step S606, BNG sends RADIUS Access Request as UE Request address to BBF AAA, wherein the UE Request address carries MAC address of UE.

Step S607, after receiving the message sent by the BNG, the BBF AAA sends an attach request message to the BWAG, where the attach request message carries the subscription information of the UE.

Step S608, the BWAG creates a session with the PDN gateway of the 3GPP network, and establishes a tunnel.

Step S609, the PDN gateway provides the IP address of the UE and the QoS parameter/strategy to the BWAG.

Step S610, BWAG replies an attach success response message to BBF AAA, wherein the attach success response message carries the IP address of UE and QoS parameter/strategy.

Step S611, the BBF AAA replies a Response message (RADIUS Access Response message) to the BNG, where the Response message carries the IP address of the UE and the QoS parameters/policies.

Step S612, the BNG establishes a default bearer for the UE according to the received QoS parameter/policy of the UE, and simultaneously the BNG sends an IPv4 address to the UE.

EXAMPLE III

The embodiment provides another method for user authentication and IPv4 address allocation of 3GPPUE accessed from a fixed network. Fig. 7 is a flowchart of a user authentication and IPv4 address allocation process according to a third embodiment of the present invention, and as shown in fig. 7, the process includes steps S701 to S713:

step S701, the 3GPP UE sends an authentication protocol Start (EAPoL-Start) message to the RG, and performs authentication through an 802.1X protocol. The UE is an 802.1X client and the RG is an 802.1X authenticator.

Step S702, after receiving the EAPoL Start message sent by the UE, the RG sends an authentication protocol ID Request (EAP _ ENITY _ REQUEST) message to the UE for notifying the UE to report the user name. After receiving the EAP Identity Request message sent by the RG, the UE replies an authentication protocol ID Response (EAP Identity Response) message to the RG, where the message carries the user name. Subsequently, the RG encapsulates the received EAP Identity Response message into an authentication Access Request (RADIUS Access Request) message, and sends the RADIUS Access Request message to the BNG.

Step S703, BNG as RADIUS Proxy sends RADIUS Access Request message received from RG to BBFAAA.

Step S704, the BBF AAA forwards the RADIUS Access Request message received from the BNG to the 3GPP AAA according to the NAI (Network Address Identifier ) of the UE. If the BBF network uses RADIUS protocol and the 3GPP network uses DIAMETER protocol, a TA (Translation Agent) exists between the BBF AAA and the 3GPP AAA for protocol conversion.

Step S705, the UE sends a DHCP Discover message and requests an IPv4 address; if the RG is of the routing type, the RG relays the message to the BNG.

Step S706, BNG sends DHCP Discover message relay to BWAG.

Step S707, after BWAG receives the address request message of UE, the BWAG inquires the subscription information of UE to BBF AAA according to the MAC address of UE.

Step S708, the BWAG and the PDN gateway of the 3GPP network establish a session, and establish a tunnel.

Step S709, the PDN gateway provides the BWAG with the IP address of the UE and the QoS parameters/policies.

Step S710, the BWAG sends a QoS provisioning message (QoS Profile provisioning) to the BBF AAA, where the QoS provisioning message carries the IP address of the UE and the QoS parameters/policies.

Step S711, BBF AAA sends QoS provide message to BNG, wherein IP address of UE and QoS parameter/strategy are carried. The BNG establishes a default bearer for the UE according to the received QoS parameters/strategies of the UE.

Step S712, BWAG replies to BNG with the IP address of UE.

Step S713, BNG replies IP address to UE.

Example four

The embodiment provides an admission control method for a resource request of 3GPP UE accessed from a fixed network. Fig. 8 is a flowchart of admission control for a user resource request according to a fourth embodiment of the present invention, and as shown in fig. 8, the flowchart includes steps S801 to S808:

step S801, the PDN-GW locally triggers or receives external triggers (e.g., a policy of the UE issued by the PCRF), and the QoS parameter/policy of the UE needs to be modified;

step S802, PDN-GW sends a request for establishing bearing to BWAG, wherein the request carries new bearing parameters of UE, namely QoS parameters/strategy of UE.

Step S803, after receiving the bearer establishment request, the BWAG sends an admission control request to the BBF AAA, so that the fixed network determines whether to admit the new QoS parameters/policies of the UE.

Step S804, the BBF AAA sends the admission control request to the BNG.

Step S805, the BNG makes a decision on the admission control request according to the current resource availability, etc.

Step S806, BNG sends the decision result of admission control to BBF AAA.

Step S807, the BBF AAA sends the decision result of admission control to the BWAG.

Step S808, the BWAG sends the decision result of the admission control to the PDN-GW.

In summary, according to the embodiments of the present invention, in a scenario of a fixed mobile network convergence in which a fixed network access gateway is introduced, a PDN-GW transmits QoS information of a UE to a BNG according to a predetermined path, so as to solve a problem how to solve QoS policy control when the fixed network access gateway is introduced in a network architecture in the related art, and improve stability and processing efficiency of a system.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or they may be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A transmission method of QoS information is characterized by comprising the following steps:

under a fixed mobile network convergence scene of introducing a fixed network access gateway, the fixed network access gateway receives QoS information of user equipment UE from a packet data network gateway PDN-GW;

and the fixed network access gateway sends the QoS information of the UE to a broadband network gateway BNG through a fixed network authentication authorization accounting AAA server.

2. The method of claim 1, wherein before the fixed network access gateway receives the QoS information of the UE from the PDN-GW, the method further comprises:

and the fixed network access gateway establishes a session with the PDN-GW and establishes a tunnel.

3. The method of claim 2, wherein the fixed network access gateway creates a session with the PDN-GW and establishes a tunnel, and further comprises at least one of the following after the UE is authenticated through a home network:

the fixed network access gateway receives an attachment request message of the UE from the fixed network AAA server, wherein the attachment request message carries subscription information of the UE;

and after receiving the IPv4 address request message from the BNG, the fixed network access gateway acquires the subscription information of the UE by sending a query request message to the fixed network AAA server.

4. The method of claim 3, wherein in a case where the fixed network access gateway receives the UE attach request message from the fixed network AAA server, the fixed network access gateway receiving QoS information of the UE from the PDN-GW comprises:

and the fixed network access gateway receives the IP address of the UE and the QoS information of the UE from the PDN-GW.

5. The method of claim 3, wherein in case that the fixed network access gateway receives an attach request message of the UE from the fixed network AAA server, the fixed network access gateway sends QoS information of the UE to the BNG through the AAA server comprises:

the fixed network access gateway carries the QoS information of the UE in a response message of replying the attachment success of the fixed network AAA server;

and the fixed network AAA server carries the QoS information of the UE in the authentication response message replying the BNG.

6. The method of claim 3, wherein in case the fixed network access gateway receives an attach request message of the UE from the fixed network AAA server,

the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: the fixed network access gateway receives an IPv4 address of the UE and QoS information of the UE from the PDN-GW;

the sending, by the fixed network access gateway, the QoS information of the UE to the BNG through the AAA server includes: the fixed network access gateway carries the IPv4 address and the QoS information of the UE in an attachment success response message replying the fixed network AAA server, and the fixed network AAA server carries the IPv4 address and the QoS information of the UE in a RADIUS access response message replying the BNG.

7. The method according to claim 3, wherein in case of obtaining subscription information of said UE by sending a query request message to said fixed network AAA server after said fixed network access gateway receives IPv4 address request message from said BNG,

the sending, by the fixed network access gateway, the QoS information of the UE to the BNG through the AAA server includes: and the fixed network access gateway sends a QoS providing message to the fixed network AAA server, and the fixed network AAA server forwards the QoS providing message to the BNG message, wherein the QoS providing message carries the IPv4 address and the QoS information of the UE.

8. The method according to any of claims 1-7, wherein after said fixed network access gateway sends said UE's QoS information to said BNG through said AAA server of the fixed network, further comprising:

the BNG establishes a default bearer for the UE after authentication according to the QoS information of the UE; or,

and the BNG performs admission control on the QoS information of the UE.

9. The method of claim 1, wherein before the fixed network access gateway receives the QoS information of the UE from the PDN-GW, the method further comprises:

the PDN-GW triggers a change of QoS information of the UE locally or by an event from the outside.

10. Method according to claim 9, characterized in that in case the PDN-GW triggers a change of QoS information of the UE either locally or by an event from outside,

the receiving, by the fixed network access gateway, the QoS information of the UE from the PDN-GW includes: the fixed network access gateway receives a bearer establishment request message from the PDN-GW, wherein the bearer establishment request message carries the changed QoS information of the UE;

the sending, by the fixed network access gateway, the QoS information of the UE to the BNG through the AAA server includes: after receiving the bearer request message, the fixed network access gateway sends an admission control request message to the BNG through the fixed network AAA server, where the admission control request message is used to determine whether the changed QoS information of the UE is admitted; and after receiving the admission control request message, the BNG makes an admission control decision according to the current resource availability so as to determine whether to admit the changed QoS information of the UE.

11. A fixed network access gateway, comprising:

the device comprises a receiving module, a sending module and a receiving module, wherein the receiving module is used for receiving QoS information of user equipment UE from a packet data network gateway PDN-GW under a fixed mobile network convergence scene of introducing a fixed network access gateway;

and the sending module is used for sending the QoS information of the UE received by the receiving module to a broadband network gateway BNG through a fixed network authentication authorization accounting AAA server.

12. A transmission system of QoS information, characterized in that it comprises a packet data network gateway PDN-GW, a fixed network authentication authorization accounting AAA server, a broadband network gateway BNG and a fixed network access gateway according to claim 11.