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WO2006122487A1 - A method for changing qos in i-wlan and the system thereof - Google Patents

A method for changing qos in i-wlan and the system thereof Download PDF

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Publication number
WO2006122487A1
WO2006122487A1 PCT/CN2006/000964 CN2006000964W WO2006122487A1 WO 2006122487 A1 WO2006122487 A1 WO 2006122487A1 CN 2006000964 W CN2006000964 W CN 2006000964W WO 2006122487 A1 WO2006122487 A1 WO 2006122487A1
Authority
WO
WIPO (PCT)
Prior art keywords
service
quality
local area
wireless local
parameter
Prior art date
Application number
PCT/CN2006/000964
Other languages
French (fr)
Chinese (zh)
Inventor
Peng Zhang
Wenlin Zhang
Chengzhen Sun
Hai Zhang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2006122487A1 publication Critical patent/WO2006122487A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/026—Means for monitoring or calibrating of associated receivers
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    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
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    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
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Definitions

  • the present invention relates to interworking wireless local area network technology, and more particularly to a method and system for modifying service quality for ongoing services in an interworking wireless local area network.
  • a wireless local area network is an extension of a wired local area network, and is based on a wired local area network, through a wireless hub (Hub), an access point (AP), and a wireless access point (AP).
  • Devices such as bridges, wireless network cards, and antennas enable wireless communication.
  • Transmission media used in wireless local area networks mainly include microwave and infrared (Infrared) pulses, which convert data packets (packets) into microwave or infrared pulses to provide various functions of the local area network.
  • Any personal computer (PC) with a wireless network card, can access the resources of the local area network through the wireless access point of the WLAN, and even enjoy the resources on the Internet.
  • Wireless LAN includes many different technologies.
  • IEEE 802.11b which is developed by the Institute of Electrical and Electronics Engineers (IEEE). It uses the 2.4GHz band and has the highest data transmission rate. Up to 1 lMbps. Also using this band are IEEE 802.1 lg and Bluetooth (Bluetooth) technology, where 802.11g has a maximum data transfer rate of 54Mbps.
  • IEEE 802.11a and ETSI BRAN Hiperlan2 use the 5GHz band and the maximum transfer rate is 54Mbps.
  • WLAN and various wireless mobile communication networks such as: Global System for Mobile Communications (“GSM”), Code Division Multiple Access (CDMA) " ) System, Wideband Code Division Multiple Access (WCDMA) system, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, CDMA 2000 system Interoperability is becoming the focus of current research.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division Synchronous Code Division Multiple Access
  • CDMA 2000 system Interoperability is becoming the focus of current research.
  • Interworking WLAN is WLAN A network created by interconnection with other wireless mobile communication networks.
  • 3GPP 3rd Generation Partnership Project
  • user equipment can be connected to the Internet, intranet (Intranet) through the WLAN access network, and can also access the network via WLAN and 3GPP.
  • the access network connection of the system's home network or the 3GPP system specifically, the WLAN user equipment is connected to the 3GPP home network via the WLAN access network when accessing the local; when roaming, via the WLAN access network and the 3GPP Accessing the network connection, some entities in the 3GPP access network are respectively interconnected with corresponding entities in the 3GPP home network, for example: 3GPP Authentication Authorization and Accounting (“AAA”) proxy and 3GPP in the 3GPP access network.
  • AAA 3GPP Authentication Authorization and Accounting
  • FIG. 1 shows the basic model in a non-roaming state.
  • the WLAN UE (User Equipment User Terminal) 110 is connected to the WLAN AN 120.
  • the WLAN AN 120 is also connected to the Internet/Intranet 130 and the 3GPP home network 140.
  • the UE 110 can access the Internet/Intranet 130 or access the 3GPP home network 140 through the WLAN AN 120.
  • the WLAN AN 120 is connected to the 3GPP AAA server 141 via the Wa interface, and connected to the WAG 142 through the Wn interface.
  • the 3GPP AAA server 141 and the subscription locator function (SLF) 143, the Home Subscriber Server (HSS) 144, and the home location register (Home) Location Register, referred to as "HLR” 145, Offline Charging System (146), Online Charging System (OCS) 147, PDG 148, WAG 142 are connected.
  • the PDG 148 is also connected to the WAG 142 on the one hand and to the external network on one side.
  • a tunnel can be established between UE 110 and PDG 148, with which WLAN AN 120 and WAG 142 are transparent to UE 110 and PDG 148.
  • Figure 2 shows a basic model in a roaming state, the model being compared to the basic model of the non-roaming state, the difference being that the WLAN AN 120 is not directly connected to the 3GPP home network 140.
  • the WLAN AN 120 is connected to the 3GPP AAA proxy 151, WAG 152 in the 3GPP access network 150 through the Wa interface and the Wn interface, respectively.
  • the WAG 152 is connected to the PDG 148 in the 3GPP home network 140, and the 3GPP AAA proxy 151 is connected to the 3GPP AAA server 141 in the 3GPP home network 140.
  • a tunnel can be established between the UE 110 and the PDG 148, with Figure 3 showing a basic model in another roaming state in which the 3GPP AAA server 141 and 3GPP access in the 3GPP home network 140 are accessed.
  • the 3GPP AAA proxy 151 in the network 150 is connected, and the 3GPP AAA proxy 151 is in turn connected to the WLAN AN 120 and the WAG 152, PDG 153 in the 3GPP access network 150, respectively.
  • a tunnel can also be established between the UE 110 and the PDG 153, with which the "WLAN AN 120 and WAG 152 are transparent to the UE 110 and the PDG 153.
  • QoS Quality of Service
  • This kind of QoS guarantee is divided into two levels. One level is the QoS negotiation between the high-level entities, so that "the entities between the WLAN UE and the PDG agree on the QoS parameters provided to the users, and the other level is how to transmit. Realizing the corresponding QoS parameters.
  • the main object of the present invention is to provide a method and system for modifying the quality of service in an interworking wireless local area network, so that QoS can be modified during service progress.
  • the present invention provides a method for modifying a quality of service in an interworking wireless local area network, comprising the following steps: When the service is in progress, the user terminal or the network side functional entity acts as the initiating device to initiate the service quality parameter modification process;
  • the first device for determining the quality of the service determines the quality of service parameter authorized to the user terminal according to the quality of service parameter required by the initiating device of the modification process, and/or the subscription information of the user;
  • C notifies the network quality entity that needs to implement the quality of service to the quality of service parameters authorized to the user terminal.
  • the first device is an authentication authorization and accounting server.
  • the first device is a packet data gateway
  • the packet data gateway obtains subscription information of the user from the authentication authorization and accounting server through interaction with the authentication authorization and accounting server.
  • the packet data gateway may obtain the subscription information of the user from the authentication authorization and accounting server before performing the quality of service modification process or in the quality of service modification process.
  • the network entity that needs to implement the quality of service includes one or any combination of the following:
  • Wireless LAN access gateway Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent.
  • the quality of service parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service by the packet data gateway and/or the authentication authorization and accounting server;
  • the packet data gateway notifies the user terminal of the quality of service parameter authorized to the user terminal.
  • the network side functional entity that initiates the QoS parameter modification process may be one of the following:
  • Wireless LAN access network Wireless LAN access network, WLAN access gateway, authentication and accounting server, authentication and accounting agent, packet data gateway, policy decision function, or application function.
  • the step A when the user equipment initiates a service quality parameter modification process, the step A includes the following sub-steps:
  • the user terminal initiates a quality of service parameter modification request to the packet data gateway, where the required service shield quantity parameter is included.
  • the trigger condition for triggering the user terminal to initiate a service quality parameter modification request may be one of the following:
  • the user equipment switches between different capabilities of the wireless local area network access network; the user's service is switched between different wireless local area network user terminals; or the service corresponding to the tunnel between the user terminal and the packet data gateway
  • the quality requirements have changed.
  • the step A when the WLAN access network initiates a QoS parameter modification process, the step A includes the following sub-steps:
  • the wireless local area network access network initiates a service quality parameter modification request to the authentication authorization and accounting server, where the required service shield quantity parameter is included.
  • the trigger condition for triggering the WLAN access network to initiate the QoS parameter modification request may be one of the following:
  • the network state of the wireless local area network access network changes, and the quality of service parameters that can be provided or guaranteed are changed;
  • the step A when the WLAN access gateway initiates a QoS parameter modification process, the step A includes the following sub-steps:
  • the WLAN access gateway initiates a service shield parameter modification request to the authentication authorization and accounting server, where the required quality of service parameter is included.
  • the trigger condition for triggering the WLAN access gateway to initiate the QoS parameter modification request may be one of the following:
  • the state of the wireless local area network access gateway changes, and the quality of service parameters that can be provided or guaranteed are changed;
  • the WLAN access gateway detects that the tunnel data packet does not have a corresponding quality of service parameter.
  • the step ⁇ includes the following sub-steps:
  • the authentication authorization and accounting server initiates a quality of service parameter modification request to the packet data gateway, including the required quality of service parameter.
  • the trigger condition for triggering the authentication authorization and the accounting server to initiate the service shield parameter modification request may be one of the following:
  • the user's subscription information changes
  • the step A when the policy determining function or the application function initiates a service quality parameter modification process, the step A includes the following sub-steps:
  • the policy determining function or the application function directly sends the authorized quality of service parameter to the packet data gateway or the authentication authorization and charging server; or notifying the packet data gateway that the quality of service parameter needs to be updated, after the packet data gateway receives the notification, Obtain new authorized quality of service parameters from the policy decision function or application function.
  • the trigger condition for triggering the application function to initiate the service quality parameter modification process may be one of the following:
  • the interworking system supports the policy control framework, the packet data gateway, the authentication authorization and accounting server, the policy determining function, and the application function jointly negotiate to determine the quality of service parameter authorized to the user terminal;
  • the authorization between the packet data gateway and the authentication authorization and accounting server mainly relates to the authorization and limitation of the service shield carried between the user equipment and the packet data gateway; the packet data gateway, the policy determining function, and Negotiation between application functions is a negotiation interaction and authorization at the service/session level, including: interaction between policy decision functions and application functions on service quality parameters between service/session layers, and policy decision functions at the service/session level
  • the service quality information and policy information are mapped to the quality of service parameters of the bearer layer and then passed to the points. Group data gateway.
  • the method further includes the following steps:
  • the message may contain the reason for the rejection.
  • the first device may perform the following operations:
  • the method may further comprise the following steps:
  • the first device queries whether the corresponding WLAN access network and/or the WLAN access gateway can accept the authorized quality of service parameter, and then determines the final quality of service parameter based on the returned response.
  • the authentication authorization and accounting server may process in one of the following manners. :
  • the quality of service parameters from the packet data gateway are adaptively modified and then sent to the wireless local area network access network and/or the wireless local area network or the network access gateway.
  • step C the following sub-steps are further included in the step C:
  • the authentication authorization and accounting server saves the authorized quality of service parameters, and the saved service
  • the quality parameter can be used for one of the following purposes or any combination thereof:
  • the interaction between the functional entity in the home network and the functional entity in the roaming network is relayed by the authentication authority and the charging proxy.
  • step C the following sub-steps are further included in the step C:
  • the authentication authority and charging agent maintains the authorized quality of service parameters, and the saved quality of service parameters can be used for one of the following purposes or any combination thereof:
  • the present invention also provides a system for implementing quality of service modification in an interworking wireless local area network, including a network entity that needs to implement quality of service; and further comprising: an initiating device, configured to initiate a service quality parameter modification process when the service is in progress; a quality first device, configured to determine, according to a quality of service parameter required by the initiating device of the modification process, and/or a subscription information of the user, a quality of service parameter to the user terminal; to authorize the user terminal The quality of service parameters are notified to the network entity that needs to implement the quality of service.
  • the first device is an authentication authorization and accounting server.
  • the first device is a packet data gateway, and the packet data gateway obtains a subscription letter of the user from the authentication authorization and accounting server through interaction with the authentication authorization and accounting server, where the network entity that needs to implement the service quality Contains one of the following or any combination:
  • Wireless LAN access gateway Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent.
  • the user terminal is notified of the quality of service parameters authorized to the user terminal by the packet data gateway.
  • the initiating device that initiates the service shield parameter modification process includes:
  • WLAN access network Wireless Local Area Network
  • WLAN access gateway authentication and authorization server
  • authentication and accounting agent authentication and accounting agent
  • packet data gateway policy decision function or application function.
  • the main feature of the present invention is that a complete process of modifying the service QoS parameters is proposed: the modification process is initiated by the user terminal or the network side functional entity, and the authorization is determined according to the required service quality and the user's subscription information. The QoS parameters are then notified to the user terminal and related entities.
  • the function can be determined by the PDG, AAA server and optional policies (Policy)
  • PDF Decision Function
  • AF Application Function
  • PDF Decision Function
  • AF Application Function
  • the PDG can also negotiate QoS parameters with the WLAN and WAG before notification.
  • the interaction between the PDG and the WLAN and the WAG is relayed through the AAA server. If the user terminal is in the roaming state, the interaction between the AAA server and the WLAN and the WAG is also transited by the AAA proxy.
  • the AAA server and the AAA proxy forward the QoS parameters, they can be forwarded without modification. They can also be modified according to the network status and network side settings.
  • the invention also proposes specific conditions for triggering the QoS modification process by various network side functional entities.
  • the difference in this technical solution brings about a more obvious beneficial effect, that is, a complete set of QoS parameters is proposed.
  • the four main steps of initiation, authorization, negotiation and release are solved in the I-WLAN.
  • the QoS modification problem enables the user terminal and each network side functional entity (including WLAN, WAG, AAA server, AAA proxy, PDG, PDF, AF, etc.) to initiate the QoS parameter modification process actively, and the coordinated application of the AAA server and the AAA proxy.
  • the invention can be applied to modify QoS parameters in both non-roaming and roaming states, thereby improving the QoS negotiation mechanism of the entire interworking system.
  • FIG. 1 is a model of an I-WLAN in a non-roaming state in the prior art
  • FIG. 2 is a model of an I-LAN in a roaming state in a prior art
  • FIG. 3 is a prior art A model of an I-WLAN in a roaming state
  • FIG. 4 is a basic flow chart of the present invention
  • FIG. 5 is a flowchart of service quality modification in an I-WLAN according to Embodiment 1 of the present invention
  • FIG. 6 is a flowchart of quality of service modification in an I-WLAN according to Embodiment 2 of the present invention
  • FIG. 7 is a flowchart according to Embodiment 3 of the present invention
  • FIG. 8 is a flowchart of service quality modification in an I-WLAN according to Embodiment 4 of the present invention
  • FIG. 9 is a flowchart of service quality modification in an I-WLAN according to Embodiment 5 of the present invention
  • Figure 10 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 6 of the present invention
  • Figure 11 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 7 of the present invention
  • Figure 12 is a flowchart showing the quality of service in the I-WLAN according to Embodiment 8 of the present invention.
  • Figure 13 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 9 of the present invention.
  • Figure 14 is a flowchart according to the present invention. The present invention will be further described in detail below with reference to the accompanying drawings.
  • FIG. 10 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 6 of the present invention
  • Figure 11 is a flow chart showing the modification of the quality of service in the
  • step 1 a tunnel is established between the WLAN user terminal and the packet data gateway, and the service is in progress. Because the present invention is directed to the ongoing QoS modification of the service, this step is The premise of the following steps.
  • the negotiation and determination of QoS when establishing a tunnel is not the content of the present invention.
  • For a specific implementation method refer to the Chinese patent document of Application No. 200510024965.5.
  • the WLAN user terminal or the network side functional entity initiates a service quality parameter modification process.
  • the WLAN user terminal or the network side functional entity initiates a QoS parameter modification process, and in the QoS parameter modification request, the entity that initiates the modification process needs to be based on its own capabilities and load conditions. , inform the packet data gateway of the required service shield parameter.
  • different initiating devices will have different originating methods:
  • the service shield parameter modification request is sent to the packet data gateway;
  • the service quality parameter modification request is sent to the packet data gateway by the authentication authorization and accounting server;
  • the service quality parameter modification request is sent to the packet data gateway by the authentication authorization and accounting server;
  • the service shield quantity parameter modification request is directly sent to the packet data gateway;
  • the Policy Decision Function (“PDF") or the Application Function (“AF") initiates the service shield parameter modification process
  • the service quality parameter modification request does not need to be sent to the packet data gateway. Instead, directly perform the following step 3, that is, directly send the authorized service shield parameter to the packet data gateway, or notify the packet data gateway, the QoS parameter needs to be updated, and after the packet data gateway receives the notification, the policy determines the function or The application function obtains new authorized quality of service parameters.
  • the WLAN user terminal or the network side functional entity initiates the QoS parameter change process, and in the QoS parameter modification request, the entity that initiates the modification process needs to be based on its own The capability and load conditions, etc., inform the authentication authority and the billing server of the required quality of service parameters.
  • different initiating devices will have different originating methods: If the WLAN access network, the WLAN access gateway, or the packet data gateway initiates the QoS parameter modification process, the QoS parameter modification request is directly sent to the authentication authorization and accounting server;
  • the QoS parameter modification request needs to be sent to the packet data gateway, and then sent by the packet data gateway to the authentication authorization and accounting server.
  • the packet data gateway can make adaptive modifications before sending it to the authentication and accounting server.
  • the WLAN user terminal initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:
  • the WLAN user terminal switches between wireless LAN access networks of different capabilities, for example, switching from an IEEE 802.11b network to an IEEE 802.11g network;
  • the user's service switches between different WLAN user terminals
  • the WLAN access network initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:
  • the network status of the WLAN access network changes, and the quality of service parameters that can be provided or guaranteed change, for example, the network load changes, the available resources change, etc.; according to the network side configuration, or from the operation and maintenance system Directive, modify the quality of service provided to the user.
  • the WLAN access gateway initiates a service quality parameter modification process. Possible trigger conditions include but are not limited to:
  • the state of the WLAN access gateway changes, and the quality of service parameters that can be provided or guaranteed change, for example, changes in network load, changes in available resources, etc.;
  • the WLAN access gateway detects that the tunnel data packet does not have a corresponding quality of service parameter. For example: A packet with a specific tunnel ID is found to have no corresponding quality of service parameter deployed on the WLAN access gateway.
  • the packet data gateway initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:
  • the status of the packet data gateway changes, and the service mean parameters that can be provided or guaranteed change, for example, the network load changes, the available resources change, etc.
  • the packet data gateway detects that the tunnel data packet does not have a corresponding quality of service parameter, for example: the data packet with a specific tunnel identifier is found to have no corresponding quality of service parameter;
  • the packet data gateway accepts requests from external network servers, or detects changes in the service shields of traffic from external networks.
  • the authentication authorization and accounting server initiates the service shield parameter modification process.
  • Possible trigger conditions include but are not limited to:
  • the application function initiates the service quality parameter modification process.
  • Possible trigger conditions include but are not limited to:
  • step 3 the packet data gateway and the authentication authorization and accounting server, and possibly the policy decision function and the application function, and determine the quality of service parameters (modified service quality parameters) authorized to the user terminal through negotiation.
  • the capacity and load of the packet data gateway itself need to be taken into consideration when determining the quality of service parameters (modified quality of service parameters) granted to the user terminal.
  • Packet data gateway and recognition The authorization between the license authorization and the accounting server is responsible for the authorization and limitation of the quality of service carried between the WLAN user terminal and the packet data gateway, such as bandwidth, delay, etc.; packet data gateway, policy decision function and application function
  • the interaction is the negotiation interaction and authorization at the service/session level, such as the quality of service category, bandwidth, etc., and the policy decision function needs to map the service quality information of the service/session level to the quality of service parameters of the bearer layer and pass it to the packet data gateway.
  • the packet data gateway will return a denial of service modification message (the reason for the rejection may be included in the message).
  • the authentication authorization and accounting server compares the stored quality of service information of the wireless local area network user with the service shield modification sent by any one of the network entities.
  • the quality of service requirements carried in the request if there is an incompatibility (for example, the service shield that does not meet the subscription of the user), the authentication and authorization server and the accounting server will return a denial of service modification message (this message may include the reason for the rejection) ).
  • the refusal service shield modification message is returned to the WLAN access network, the WLAN access gateway, and the packet data gateway, the message is directly returned to the corresponding entity by the authentication authorization and accounting server; if it is to the WLAN user terminal
  • the policy decision function or the application function returns a denial of service quality modification message, and the message is returned to the packet data gateway by the authentication authorization and accounting server, and then returned to the corresponding entity by the packet data gateway.
  • subsequent operations include but are not limited to the following methods:
  • step 4 If the packet data gateway finally determines the quality of service parameter authorized to the user terminal, the packet data gateway is mediated by the authentication and authorization and accounting server, and the packet data is based on the authorized quality of service parameter determined in step 3.
  • the gateway negotiates with the WLAN access network, the WLAN access gateway, and the WLAN user terminal for quality of service parameters to obtain a quality of service parameter that each network entity can provide.
  • the authentication authorization and accounting server If the authentication authorization and accounting server finally determines the quality of service parameters authorized to the user terminal, then the authentication authorization and accounting server is based on the authorized quality of service parameters determined in step 3, with the packet data gateway, the wireless local area network access network.
  • the WLAN access gateway and the WLAN user terminal perform service shield parameter negotiation to obtain a quality of service parameter that each network entity can provide.
  • the packet data gateway If the packet data gateway ultimately determines the quality of service parameters granted to the user terminal, the packet data gateway notifies the wireless local area network access network, the wireless local area network access gateway, and/or the wireless local area network user terminal the authorized quality of service parameters. If step 4 is performed before this step, the packet data gateway notifies the negotiated service shield parameter to the WLAN access network and/or the WLAN access gateway. If a network entity cannot accept the authorized service parameter, or cannot provide the authorized quality of service parameter, provide the reduced quality of service parameter according to the network side configuration, or initiate the disconnection process, or maintain the existing service quality.
  • the authentication authorization and accounting server can forward the service shield parameter in two ways:
  • One is to send directly to the WLAN access network and/or the wireless LAN access gateway without any modification
  • the other is the status of the network, the configuration on the network side, etc., and the service quality parameters are adaptively modified and then sent to the WLAN and the WLAN access gateway.
  • the status of the network includes, but is not limited to, the current number of users, the current load, the used memory capacity, the used processor capacity, the number of used ports, the available memory capacity, the available processor capacity, the number of available ports, and so on.
  • the authentication and authorization and accounting servers need to store these quality of service parameters for specific purposes, such as the basis for charging, the amount of service shields used for network management purposes, and related information statistics, and provided to other servers, systems, network entities, or third parties. Wait.
  • the authentication authorization and accounting server If the authentication authorization and accounting server finally determines the quality of service parameters authorized to the user terminal, the authentication authorization and accounting server notifies the packetized data network of the authorized quality of service parameters. Off, WLAN access network, WLAN access gateway and/or WLAN user terminal. If step 4 is performed prior to this step, the authentication authorization and accounting server notifies the negotiated quality of service parameters to the wireless local area network access network and/or the wireless local area network access gateway. If a network entity cannot accept the authorized service shield parameter, or cannot provide the authorized quality of service parameter, provide the reduced quality of service parameters according to the configuration on the network side, or initiate the disconnection process, or it may remain existing. Quality of service.
  • the authentication and authorization and accounting servers need to store these quality of service parameters for specific purposes, such as the basis for charging, the amount of service shields used for network management purposes, and related information statistics, and provided to other servers, systems, network entities, or third parties. Wait.
  • the above steps are in the case of non-roaming. If the user is roaming, the sending of the QoS parameter modification request, the negotiation of the service Shield parameter, and the notification of the QoS parameter need to be forwarded by the authentication and authorization and charging agent. .
  • the authentication and authorization agent and the charging agent can forward the quality of service parameters in two ways: one is to send directly to the wireless without any modification. a local area network access network and/or a wireless local area network access gateway;
  • the other is to adapt the service parameters according to the status of the access network and the configuration of the access network side.
  • the status of the network includes, but is not limited to, the current number of users, the current load, the used memory capacity, the used processor capacity, the number of used ports, the available memory capacity, the available processor capacity, the number of available ports, and so on.
  • the authentication and authorization and accounting servers may also store these quality of service parameters for specific purposes, such as the basis of charging, the quality of service and related information statistics for network management purposes, and provision to other servers, System, network entity or third party, etc.
  • Embodiment 1 The WLAN user terminal initiates QoS modification (the packet data gateway finally determines the service shield parameter authorized to the user terminal), as shown in FIG.
  • Step 1 A tunnel is established between the WLAN UE and the PDG, and the service is in progress.
  • Step 2 The WLAN UE initiates a QoS modification request to the PDG.
  • Step 3 The AAA server stores the subscription information of the WLAN user, including the QoS information, and the QoS parameter is authorized between the PDG and the AAA server to authorize the QoS parameters provided to the user.
  • Step 4 If the interworking system supports the policy control framework (that is, the interworking system can interact with the PDF and the AF), there are also steps such as authorization, indication, and the like for the QoS parameters between the PDG, the PDF, and the AF. Described in detail in Embodiment 6;
  • Step 5 The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server. At the same time, the AAA server stores QoS parameters.
  • the notification of the QoS parameters needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to the requirements.
  • the AAA proxy may also store QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • Step 6 The PDG sends a QoS modification request response to the WLAN UE.
  • Embodiment 2 The WLAN access network initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 The WLAN AN initiates a QoS parameter modification request to the PDG through the AAA server.
  • Step 3 the same as step 3 of the embodiment 1;
  • Step 4 The PDG notifies the modified QoS parameter to the WAG through the AAA server, and directly notifies the WLAN UE of the modified QoS parameter.
  • the AAA server stores the QoS parameters.
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can modify the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • Step 5 The PDG sends a QoS modification request response to the WLAN AN.
  • Embodiment 3 The WLAN access gateway initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 the WAG initiates a QoS parameter modification request to the PDG through the AAA server; Step 3, Step 3 of Embodiment 1;
  • Step 4 The PDG notifies the WLAN of the modified QoS parameters through the AAA server.
  • the AN at the same time, directly notifies the WLAN UE of the modified QoS parameters.
  • the AAA server stores the QoS parameters.
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • Step 5 The PDG sends a QoS modification request response to the WAG.
  • step 3 after the QoS modification (between step 3 and step 4), there may be interaction between the PDG, the PDF, and the AF.
  • interaction procedure For details of the interaction procedure, refer to step 3 to step 7 in Embodiment 6.
  • Embodiment 4 The packet data gateway initiates QoS modification (the quality of service parameters authorized to the user terminal is finally determined by the packet data gateway), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 the same as step 3 of the embodiment 1;
  • Step 3 The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server, and directly notifies the WLAN UE of the modified QoS parameters.
  • the AAA server stores QoS parameters.
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA agent can adapt the QoS parameters or do not modify it as needed.
  • the AAA agent can also store QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLA AN, or only the WAG, or only the WLAN AN and the WAG.
  • step 3 For the interaction between the PDF and the AF, the details of the interaction flow can be referred to step 3 to step 7 in Embodiment 6.
  • Embodiment 5 The application function initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 the AF is triggered to provide updated service information to the PDF
  • Step 3 the AF provides the updated service information to the PDF
  • Step 4 PDF update session/service authorization information
  • Step 5 The PDF sends a COPS DEC (decision) message to the PDG to update the authorization based on the modification of the session.
  • the PDG returns a COPS RPT (4) status message to the PDF.
  • the PDG initiates a QoS modification process;
  • Step 6 the PDF returns to the AF confirmation of step 3;
  • Step 7 the same as step 3 of the embodiment 1;
  • Step 8 The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server, and directly notifies the WLAN UE of the modified QoS parameters.
  • the AAA server stores QoS parameters.
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • Embodiment 6 is as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 the same as step 2 of the embodiment 1;
  • Step 3 The PDG sends a COPS REQ (Request) message to the PDF;
  • Step 4 the PDF sends an authorization request to the AF.
  • A includes service information in the response to the PDF, which is used to authorize the bearer modification;
  • Step 5 The PDF sends a COPS DEC (decision) message to the PDG to inform the result of the authorization decision;
  • Step 6 The PDG returns a COPS RPT (4 report status) message to the PDF;
  • Step 7 if step 4 is performed, the PDF returns a response to the AF that successfully determines the deployment; Step 8, Step 3 of Embodiment 1;
  • Step 9 The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server. At the same time, the AAA server stores QoS parameters.
  • the notification of the QoS parameters needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy can also store the QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLA AN, or only the WAG, or only the WLAN AN and WAG.
  • Step 10 The PDG sends a QoS 4 redirection request response to the WLAN UE.
  • Embodiment 7 Flow with QoS negotiation (the quality of service parameters authorized to the user terminal is finally determined by the packet data gateway), as shown in FIG.
  • Step 1-3 the same as step 1-3 of the embodiment 1;
  • Step 4 The AAA server sends the QoS parameter to 1 AG, and the WAG makes a judgment according to its own situation:
  • step 4a If the QoS parameter can be accepted, return a consent response to the AAA server, and then perform step 4c, otherwise perform step 4b;
  • the WAG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.
  • Step 5 The AAA server sends the QoS parameter to the WLAN AN, and the WLAN AN makes a judgment according to its own situation:
  • step 5a If the QoS parameter can be accepted, return a consent response to the AAA server, and then perform step 5c, otherwise perform step 5b;
  • the AAA server returns the response returned by the WLANAN to the PDG.
  • the WLANAN's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.
  • the WAG and/or WLAN AN cannot accept the QoS parameters sent by the AAA server/AAA proxy, it can also pass the AAA server/ The AAA proxy returns a failure response to the PDG.
  • Step 6 Based on the responses obtained in step 4 and step 5, the PDG makes a decision to determine the QoS parameters that are ultimately provided to the user:
  • the PDG If the decision fails, or receives a failure response from the WAG and/or WLAN AN through the AAA server/AAA proxy, the PDG returns a tunnel establishment failure message or tunnel establishment rejection message to the user and indicates the reason for the failure/rejection. The termination of the entire process is no longer performed downward.
  • the AAA server, the AAA proxy, the WAG, the WLAN AN, and the like are instructed to delete the user-related QoS information and other information; and the user-related information stored on the PDG is deleted. Otherwise
  • the PDG sends the QoS parameter of the provisioning user determined in step 6 to the AAA server.
  • the AAA server stores the information for a specific purpose (for example: charging, service statistics, responses from WLANAN and WAG.
  • the QoS parameters may also only inform some network entities, For example, only WLANAN is notified, or only WAG is notified, or only WLAN A and WAG are notified.
  • the PDG sends a QoS modification request response to the WLAN UE.
  • Embodiment 8 The WLAN access network initiates QoS modification (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 The WLA AN initiates a QoS parameter modification request to the AAA server.
  • Step 3 The AAA server determines the QoS parameter authorized to the user according to the QoS parameter subscribed by the user and the requested QoS sent by the WLAN AN.
  • Step 4 The AAA server notifies the modified QoS parameters to the WAG and the PDG; the PDG notifies the WLAN UE of the modified QoS parameters. At the same time, the AAA server stores the QoS parameters. The AAA server stores this information for a specific purpose (eg billing, traffic statistics, etc.).
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • Step 5 The AAA server sends a QoS modification request response to the WLAN AN.
  • Embodiment 9 The packet data gateway initiates QoS modification (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 The PDG initiates a QoS parameter modification request to the AAA server.
  • Step 3 The AAA server determines the QoS parameters authorized to the user according to the QoS parameters subscribed by the user and the QoS of the request sent by the PDG.
  • Step 4 to step 5 the AAA server notifies the WAG and the modified QoS parameters.
  • the QoS modification response request is returned to the PDG, and the authorized QoS parameter is carried; the PDG then notifies the WLAN UE of the QoS parameter.
  • the AAA server stores QoS parameters.
  • the AAA server stores this information for a specific purpose (eg, billing, traffic statistics, etc.).
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only notify some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.
  • step 3 after the QoS modification (between step 3 and step 4), there may be interaction between the PDG, the PDF, and the AF.
  • interaction procedure For details of the interaction procedure, refer to step 3 to step 7 in Embodiment 6.
  • Embodiment 10 Flow with QoS negotiation (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.
  • Step 1 the same as step 1 of the embodiment 1;
  • Step 2 The WLAN UE initiates a QoS modification request to the PDG; the PDG requests authorization from the AAA server;
  • Step 3 The AAA server performs QoS authorization according to the subscription information of the WLAN user.
  • Step 4 The AAA server sends the QoS parameters to the WAG, and the WAG makes a judgment according to its own situation:
  • step 4a If the QoS parameter can be accepted, return a consent response to the AAA server, otherwise perform step 4b;
  • the WAG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.
  • Step 5 The AAA server sends the QoS parameter to the WLAN AN, and the WLAN AN makes a judgment according to its own situation: 5a). 'If the QoS parameters can be accepted, return the consent response to the AAA server, otherwise perform step 5b;
  • the WLANAN's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.
  • Step 6 The AAA server sends the QoS parameters to the PDG, and the PDG makes a judgment according to its own situation:
  • step 6a If the QoS parameter can be accepted, return a consent response to the AAA server, otherwise perform step 6b;
  • the PDG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.
  • step 4 if the WAG and/or WLAN AN and/or PDG cannot be accepted by the AAA server/AAA proxy
  • the incoming QoS parameters can also return a failure response to the AAA server through the AAA proxy.
  • Step 7 The AAA server determines the QoS parameters finally provided to the user according to the responses returned in steps 4, 5, and 6, and stores the parameters for a specific purpose (for example, billing, service statistics, etc.).
  • Step 8 The AAA server sends the modified QoS to the WLAN AN, PDG, and WAG, and accepts responses from the WLAN AN, PDG, and WAG.
  • the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown).
  • the AAA proxy can adapt the QoS parameters or do not modify it according to requirements.
  • the AAA proxy may also store the QoS parameters.
  • the QoS parameters may also only notify some network entities, for example, only notifications. WLANAN, or only notify WAG, or only WLAN AN and WAG.
  • Step 9 The PDG sends a QoS change request response to the WLAN UE.
  • the user terminal or the network side functional entity initiates the service quality parameter modification process as the initiating device; the first device used for determining the service quality is required according to the initiating device of the modification process.
  • the service shield quantity parameter, and/or the user's subscription information determines a quality of service parameter authorized to the user terminal; and notifies the network quality entity that needs to implement the quality of service to the quality of service parameter authorized to the user terminal.
  • the present invention also provides a system for implementing quality of service modification in an interworking wireless local area network, including a network entity that needs to implement quality of service; and an initiating device and a first device for determining quality of service; wherein the initiating device is used to When the service is in progress, the service quality parameter modification process is initiated; the first device for determining the quality of service is used to determine the authorization according to the service quality parameter required by the initiating device of the modification process, and/or the subscription information of the user.
  • the quality of service parameter of the user terminal; the service shield quantity parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service.
  • the first device may be an authentication and authorization and accounting server, as the case may be.
  • the first device may also be a packet data gateway that obtains subscription information of the user from the authentication authorization and accounting server through interaction with the authentication authority and the billing server.
  • the network entity requiring implementation of quality of service comprises one or any combination of the following: a wireless local area network access gateway, a wireless local area network access network, an authentication and accounting server, a packet data gateway, and an authentication and accounting agent.
  • the service shield quantity parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service by the packet data gateway and/or the authentication authorization and accounting server; wherein, the packet data gateway will authorize Notifying the user terminal of the quality of service parameter of the user terminal.
  • the initiating device that initiates the QoS parameter modification process includes: a user terminal, a WLAN access network, a WLAN access gateway, an authentication authorization and accounting server, an authentication authorization and a charging proxy, and packet data. Gateway, policy decision function or application Features.

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Abstract

A method for changing QoS in I-WLAN and the system thereof which enable the QoS changing during the service. The method comprises the steps that the user equipment or network function entity initiates the changing procedure, and PDG and AAA server negotiate with the alternative PDF and AF to determine the QoS parameter granted to the user, then notify it to the network entity which requires the parameter to implement QoS. The negotiation of QoS parameter with the network entity which requires the parameter to implement QoS can also be done before the notification. The system includes a initiating device and a first device for determining QoS; the initiating device initiates the QoS changing procedure during the service; the first device determines the QoS parameter granted to the user terminal according to the QoS parameter required by the initiating device and/or the subscription information of the user; the QoS parameter granted to the user terminal is notified to the network entity which needs to implement QoS.

Description

互通无线局域网中服务质量修改方法及系统  Method and system for modifying service quality in interworking wireless local area network

技术领域 本发明涉及互通无线局域网技术， 特别涉及互通无线局域网中对正 在进行的业务修改服务质量的方法及系统。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to interworking wireless local area network technology, and more particularly to a method and system for modifying service quality for ongoing services in an interworking wireless local area network.

背景技术 无线局域网 （Wireless Local Area Network, 简称 "WLAN" )是有线 局域网的扩展， 在有线局域网的基础上， 通过无线集线器 （Hub )、 无线 接入点 （Access Point, 简称 "AP" )、 无线网桥、 无线网卡和天线等设备 使无线通信得以实现。 无线局域网采用的传输媒体主要有微波和红外线 ( Infrared )脉冲， 将数据分组（包）转换为微波电波或红外线脉冲提供 局域网的各种功能。 任何一台个人电脑（PC ), 装上无线网卡就可以通过 WLAN 的无线接入点去享用局域网的资源， 甚至还可以享用因特网 ( Internet )上的资源。 BACKGROUND A wireless local area network (WLAN) is an extension of a wired local area network, and is based on a wired local area network, through a wireless hub (Hub), an access point (AP), and a wireless access point (AP). Devices such as bridges, wireless network cards, and antennas enable wireless communication. Transmission media used in wireless local area networks mainly include microwave and infrared (Infrared) pulses, which convert data packets (packets) into microwave or infrared pulses to provide various functions of the local area network. Any personal computer (PC), with a wireless network card, can access the resources of the local area network through the wireless access point of the WLAN, and even enjoy the resources on the Internet.

无线局域网包括多种不同技术， 目前应用较为广泛的一个技术标准 是电子和电气工程师协会 ( Institute of Electrical and Electronics Engineers, 简称 "IEEE" )制定的 IEEE 802.11b, 采用 2.4GHz频段， 最高数据传输 速率可达 1 lMbps。 使用该频段的还有 IEEE 802.1 lg和蓝牙 （ Bluetooth ) 技术， 其中， 802.11g最高数据传输速率可达 54Mbps。 其它新技术诸如 IEEE 802.11a和 ETSI BRAN Hiperlan2都使用 5GHz频段， 最高传输速率 也可达到 54Mbps。  Wireless LAN includes many different technologies. One of the most widely used technical standards is IEEE 802.11b, which is developed by the Institute of Electrical and Electronics Engineers (IEEE). It uses the 2.4GHz band and has the highest data transmission rate. Up to 1 lMbps. Also using this band are IEEE 802.1 lg and Bluetooth (Bluetooth) technology, where 802.11g has a maximum data transfer rate of 54Mbps. Other new technologies such as IEEE 802.11a and ETSI BRAN Hiperlan2 use the 5GHz band and the maximum transfer rate is 54Mbps.

随着 WLAN技术的兴起和发展， WLAN与各种无线移动通信网， 诸 如： 全球移动通信系统 ( Global System for mobile Communications , 简称 "GSM" )、 码分多址（ Code Division Multiple Access, 简称 "CDMA" ) 系统、 宽带码分多址 （Wideband Code Division Multiple Access, 简称 "WCDMA" )系统、 时分同步码分多址（ Time Division Synchronous Code Division Multiple Access, 简称 "TD-SCDMA" ) 系统、 CDMA 2000系统 的互通正成为当前研究的重点。  With the rise and development of WLAN technology, WLAN and various wireless mobile communication networks, such as: Global System for Mobile Communications ("GSM"), Code Division Multiple Access (CDMA) " ) System, Wideband Code Division Multiple Access (WCDMA) system, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, CDMA 2000 system Interoperability is becoming the focus of current research.

互通无线局域网（Interworking WLAN, 简称 "I- WLAN" )是 WLAN 和其它无线移动通信网互联而产生的网络。 在第三代合作伙伴项目 （3rd Generation Partnership Project, 简称 "3GPP" )标准化组织中， 用户设备 可以通过 WLAN接入网络与因特网、 企业内部互联网 （Intranet )相连， 还可以经由 WLAN接入网络与 3GPP系统的归属网络或 3GPP系统的访 问网络连接，具体地说就是， WLAN用户设备在本地接入时，经由 WLAN 接入网络与 3GPP的归属网络相连； 在漫游时， 经由 WLAN接入网络与 3GPP的访问网络相连， 3GPP访问网络中的部分实体分别与 3GPP归属 网络中的相应实体互连， 例如： 3GPP访问网络中的 3GPP认证授权和计 费 ( Authentication Authorization and Accounting , 简称 "AAA" )代理和 3GPP归属网络中的 3GPP AAA服务器； 3GPP网络中的无线局域网接入 网关 （WLAN Access Gateway, 简称 "WAG" ) 与 3GPP网络中的分组数 据网关 （Packet Data Gateway, 简称 "PDG" )等等。 Interworking WLAN ("I-WLAN") is WLAN A network created by interconnection with other wireless mobile communication networks. In the 3rd Generation Partnership Project (3GPP) standardization organization, user equipment can be connected to the Internet, intranet (Intranet) through the WLAN access network, and can also access the network via WLAN and 3GPP. The access network connection of the system's home network or the 3GPP system, specifically, the WLAN user equipment is connected to the 3GPP home network via the WLAN access network when accessing the local; when roaming, via the WLAN access network and the 3GPP Accessing the network connection, some entities in the 3GPP access network are respectively interconnected with corresponding entities in the 3GPP home network, for example: 3GPP Authentication Authorization and Accounting ("AAA") proxy and 3GPP in the 3GPP access network. A 3GPP AAA server in the home network; a WLAN Access Gateway (WAG) in the 3GPP network; a Packet Data Gateway ("PDG") in the 3GPP network, and the like.

下面结合图 1、图 2和图 3介绍非漫游和漫游两种状态下 I-WLAN的 基本模型。  The basic model of I-WLAN in non-roaming and roaming states will be described below with reference to FIG. 1, FIG. 2 and FIG.

图 1示出了非漫游状态下的基本模型。 WLAN UE( User Equipment用 户终端） 110接入到 WLANAN 120, WLANAN 120还和 Internet/Intranet 130、 3GPP归属网络 140相连， UE 110可以通过 WLAN AN 120访问 Internet/Intranet 130或接入 3GPP归属网络 140。具体地说， WLANAN 120 通过 Wa接口和 3GPP AAA服务器 141连接、 通过 Wn接口和 WAG 142 连接。 在 3GPP归属网络 140中， 3GPP AAA服务器 141又分别和签约定 位功能（Subscription Locator Function, 简称 "SLF" ) 143、 归属签约用户 服务器（Home Subscriber Server,简称 "HSS" )144、归属位置寄存器（Home Location Register, 简称 "HLR" ) 145、 离线计费系统（Offline Charging System ) 146、在线计费系统（ Online Charging System, 筒称 "OCS" ) 147、 PDG 148、 WAG 142相连接。 PDG 148还一方面和 WAG 142连接， 一方 面和外部网络连接。在 UE 110和 PDG 148之间可以建立隧道，有了这个 隧道， WLANAN 120和 WAG 142对 UE 110和 PDG 148是透明的。  Figure 1 shows the basic model in a non-roaming state. The WLAN UE (User Equipment User Terminal) 110 is connected to the WLAN AN 120. The WLAN AN 120 is also connected to the Internet/Intranet 130 and the 3GPP home network 140. The UE 110 can access the Internet/Intranet 130 or access the 3GPP home network 140 through the WLAN AN 120. Specifically, the WLAN AN 120 is connected to the 3GPP AAA server 141 via the Wa interface, and connected to the WAG 142 through the Wn interface. In the 3GPP home network 140, the 3GPP AAA server 141 and the subscription locator function (SLF) 143, the Home Subscriber Server (HSS) 144, and the home location register (Home) Location Register, referred to as "HLR" 145, Offline Charging System (146), Online Charging System (OCS) 147, PDG 148, WAG 142 are connected. The PDG 148 is also connected to the WAG 142 on the one hand and to the external network on one side. A tunnel can be established between UE 110 and PDG 148, with which WLAN AN 120 and WAG 142 are transparent to UE 110 and PDG 148.

图 2 示出了一种漫游状态下的基本模型， 该模型和非漫游状态的基 本模型相比， 区别在于 WLANAN 120并不是直接和 3GPP归属网絡 140 相连的， 而是通过了 3GPP访问网络 150的中转。 具体地说， WLANAN 120分别通过 Wa接口和 Wn接口和 3GPP访问网络 150中的 3GPP AAA 代理 151、 WAG 152连接。 该 WAG 152和 3GPP归属网络 140中的 PDG 148连接， 3GPPAAA代理 151和 3GPP归属网络 140中的 3GPPAAA服 务器 141连接。 同样地， 在 UE 110和 PDG 148之间可以建立隧道， 有了 图 3示出了另一种漫游状态下的基本模型， 在该模型中， 3GPP归属 网络 140中的 3GPP AAA服务器 141与 3GPP访问网络 150中的 3GPP AAA代理 151连接， 3GPP AAA代理 151又分别和 WLAN AN 120以及 3GPP访问网络 150中的 WAG 152、 PDG 153连接。 同样地， 在 UE 110 和 PDG 153之间也可以建立隧道，有了这个隧道， "WLANAN 120和 WAG 152对 UE 110和 PDG 153是透明的。 Figure 2 shows a basic model in a roaming state, the model being compared to the basic model of the non-roaming state, the difference being that the WLAN AN 120 is not directly connected to the 3GPP home network 140. Connected, but through the 3GPP access network 150 transit. Specifically, the WLAN AN 120 is connected to the 3GPP AAA proxy 151, WAG 152 in the 3GPP access network 150 through the Wa interface and the Wn interface, respectively. The WAG 152 is connected to the PDG 148 in the 3GPP home network 140, and the 3GPP AAA proxy 151 is connected to the 3GPP AAA server 141 in the 3GPP home network 140. Similarly, a tunnel can be established between the UE 110 and the PDG 148, with Figure 3 showing a basic model in another roaming state in which the 3GPP AAA server 141 and 3GPP access in the 3GPP home network 140 are accessed. The 3GPP AAA proxy 151 in the network 150 is connected, and the 3GPP AAA proxy 151 is in turn connected to the WLAN AN 120 and the WAG 152, PDG 153 in the 3GPP access network 150, respectively. Likewise, a tunnel can also be established between the UE 110 and the PDG 153, with which the "WLAN AN 120 and WAG 152 are transparent to the UE 110 and the PDG 153.

在上述的模型中， 为了向用户提供高质量的基于分组交换的电信服 务， 就必须要能够保障端到端的服务质量 （Quality of Service, 简称 "QoS" ), 即在 WLAN UE和 PDG也要提供 QoS保障。这种 QoS保障分 为两个层面，一个层面是高层的实体间的 QoS协商，使 "WLAN UE和 PDG 之间的各个实体对向用户提供的 QoS参数达成一致， 另一个层面就是在 传输时如何实现相应的 QoS参数。 目前，在 WLAN UE和 PDG之间并没 有一种明确的机制来提供 QoS协商和保障， 这样对于很多要求 QoS保障 的业务， 例如 IMS ( IP Multimedia Subsystem, IP多媒体子系统）业务， 就不能 4艮好的支持。 对于前一个层面， 即 QoS协商层面， 又包括两个方 面： 业务建立时的 QoS协商和业务进行时 QoS修改的处理。 本发明的技 术方案主要针对后者， 即业务进行时 QoS修改的处理。  In the above model, in order to provide users with high-quality packet-switched telecommunication services, it is necessary to ensure end-to-end Quality of Service (QoS), that is, also provided in WLAN UEs and PDGs. QoS guarantee. This kind of QoS guarantee is divided into two levels. One level is the QoS negotiation between the high-level entities, so that "the entities between the WLAN UE and the PDG agree on the QoS parameters provided to the users, and the other level is how to transmit. Realizing the corresponding QoS parameters. Currently, there is no clear mechanism between WLAN UE and PDG to provide QoS negotiation and guarantee, so for many services that require QoS guarantee, such as IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) For the former layer, that is, the QoS negotiation layer, there are two aspects: QoS negotiation at the time of service establishment and QoS modification at the time of service. The technical solution of the present invention is mainly directed to the latter. , that is, the processing of QoS modification when the service is in progress.

目前公开的文献中没有 I-WLAN系统中业务进行时 QoS修改的方法。 发明内容  The currently published literature does not have a method of QoS modification when the service is in progress in the I-WLAN system. Summary of the invention

有鉴于此， 本发明的主要目的在于提供一种互通无线局域网中服务 质量修改方法及系统， 使得可以在业务进行中对 QoS进行修改。  In view of this, the main object of the present invention is to provide a method and system for modifying the quality of service in an interworking wireless local area network, so that QoS can be modified during service progress.

为实现上述目的， 本发明提供了一种互通无线局域网中服务质量修 改方法， 包含以下步骤： A在业务进行时， 用户终端或网絡侧功能实体作为发起设备发起服 务质量参数修改流程； To achieve the above objective, the present invention provides a method for modifying a quality of service in an interworking wireless local area network, comprising the following steps: When the service is in progress, the user terminal or the network side functional entity acts as the initiating device to initiate the service quality parameter modification process;

B 用于决策服务质量的第一设备根据所述修改流程的发起设备所要 求的服务质量参数， 和 /或用户的签约信息， 确定授权给该用户终端的服 务质量参数；  The first device for determining the quality of the service determines the quality of service parameter authorized to the user terminal according to the quality of service parameter required by the initiating device of the modification process, and/or the subscription information of the user;

C将授权给该用户终端的服务质量参数通知给需要实施服务质量的 网络实体。  C notifies the network quality entity that needs to implement the quality of service to the quality of service parameters authorized to the user terminal.

其中， 所述第一设备是认证授权和计费服务器。  The first device is an authentication authorization and accounting server.

此外在所述方法中， 所述第一设备是分组数据网关， 该分组数据网 关通过与认证授权和计费服务器的交互， 从认证授权和计费服务器获取 用户的签约信息。 分组数据网关可以是在执行服务质量修改流程之前， 或服务质量修改流程中从认证授权和计费服务器获取用户的签约信息。  Further in the method, the first device is a packet data gateway, and the packet data gateway obtains subscription information of the user from the authentication authorization and accounting server through interaction with the authentication authorization and accounting server. The packet data gateway may obtain the subscription information of the user from the authentication authorization and accounting server before performing the quality of service modification process or in the quality of service modification process.

此外在所述方法中， 所述需要实施服务质量的网絡实体包含以下之 一或其任意组合：  In addition, in the method, the network entity that needs to implement the quality of service includes one or any combination of the following:

无线局域网接入网关、 无线局域网接入网络、 认证授权和计费服务 器、 分组数据网关、 以及认证授权和计费代理。  Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent.

此外在所述方法中， 通过分组数据网关和 /或认证授权和计费服务器 将所述授权给该用户终端的服务质量参数通知给需要实施服务质量的网 络实体；  Further in the method, the quality of service parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service by the packet data gateway and/or the authentication authorization and accounting server;

其中， 由分组数据网关将授权给该用户终端的服务质量参数通知给 用户终端。  The packet data gateway notifies the user terminal of the quality of service parameter authorized to the user terminal.

此外在所述方法中， 发起服务质量参数修改流程的所述网络侧功能 实体可以是以下之一：  Further in the method, the network side functional entity that initiates the QoS parameter modification process may be one of the following:

无线局域网接入网络、 无线局域网接入网关、 认证授权和计费服务 器、 认证授权和计费代理、 分组数据网关、 策略决定功能、 或应用功能。  Wireless LAN access network, WLAN access gateway, authentication and accounting server, authentication and accounting agent, packet data gateway, policy decision function, or application function.

此外在所述方法中， 当所述用户设备发起服务质量参数修改流程时， 所述步骤 A包含以下子步骤：  In addition, in the method, when the user equipment initiates a service quality parameter modification process, the step A includes the following sub-steps:

用户终端向分组数据网关发起服务质量参数修改请求， 其中包含要 求的服务盾量参数。 此外在所述方法中， 触发所述用户终端发起服务质量参数修改请求 的触发条件可以是以下之一： The user terminal initiates a quality of service parameter modification request to the packet data gateway, where the required service shield quantity parameter is included. In addition, in the method, the trigger condition for triggering the user terminal to initiate a service quality parameter modification request may be one of the following:

所述用户设备在不同能力的无线局域网接入网络间发生切换； 用户的业务在不同的无线局域网用户终端间发生切换； 或， 所述用户终端和分组数据网关之间的隧道所对应业务的服务质量要 求发生了变化。  The user equipment switches between different capabilities of the wireless local area network access network; the user's service is switched between different wireless local area network user terminals; or the service corresponding to the tunnel between the user terminal and the packet data gateway The quality requirements have changed.

此外在所述方法中， 当所述无线局域网接入网络发起服务质量参数 修改流程时， 所述步驟 A包含以下子步骤：  In addition, in the method, when the WLAN access network initiates a QoS parameter modification process, the step A includes the following sub-steps:

所述无线局域网接入网络向所述认证授权和计费服务器发起服务质 量参数修改请求， 其中包含要求的服务盾量参数。  The wireless local area network access network initiates a service quality parameter modification request to the authentication authorization and accounting server, where the required service shield quantity parameter is included.

此外在所述方法中， 触发所述无线局域网接入网络发起服务质量参 数修改请求的触发条件可以是以下之一：  In addition, in the method, the trigger condition for triggering the WLAN access network to initiate the QoS parameter modification request may be one of the following:

所述无线局域网接入网络的网絡状态发生变化， 能够提供或保证的 服务质量参数发生了变化；  The network state of the wireless local area network access network changes, and the quality of service parameters that can be provided or guaranteed are changed;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system.

此外在所述方法中， 当所述无线局域网接入网关发起服务质量参数 修改流程时， 所述步驟 A包含以下子步驟：  In addition, in the method, when the WLAN access gateway initiates a QoS parameter modification process, the step A includes the following sub-steps:

所述无线局域网接入网关向所述认证授权和计费服务器发起服务盾 量参数修改请求， 其中包含要求的服务质量参数。  The WLAN access gateway initiates a service shield parameter modification request to the authentication authorization and accounting server, where the required quality of service parameter is included.

此外在所述方法中， 触发所述无线局域网接入网关发起服务质量参 数修改请求的触发条件可以是以下之一：  In addition, in the method, the trigger condition for triggering the WLAN access gateway to initiate the QoS parameter modification request may be one of the following:

所述无线局域网接入网关状态发生变化， 能够提供或保证的服务质 量参数发生了变化；  The state of the wireless local area network access gateway changes, and the quality of service parameters that can be provided or guaranteed are changed;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量；  Modify the quality of service provided to the user according to the configuration on the network side or from the instructions of the operation and maintenance system;

所述无线局域网接入网关检测到隧道数据包没有对应的服务质量参 数。  The WLAN access gateway detects that the tunnel data packet does not have a corresponding quality of service parameter.

此外在所述方法中， 当所述认证授权和计费服务器发起服务质量参 数修改流程时， 所述步骤 Α包含以下子步骤： In addition, in the method, when the authentication authorization and accounting server initiates a service quality parameter When the number is modified, the step Α includes the following sub-steps:

所述认证授权和计费服务器向所述分组数据网关发起服务质量参数 修改请求， 其中包含要求的服务质量参数。  The authentication authorization and accounting server initiates a quality of service parameter modification request to the packet data gateway, including the required quality of service parameter.

此外在所述方法中 , 触发所述认证授权和计费服务器发起服务盾量 参数修改请求的触发条件可以是以下之一：  In addition, in the method, the trigger condition for triggering the authentication authorization and the accounting server to initiate the service shield parameter modification request may be one of the following:

用户的签约信息发生改变；  The user's subscription information changes;

用户的计费状态发生变化；  The user's billing status changes;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system.

此外在所述方法中， 当所述策略决定功能或应用功能发起服务质量 参数修改流程时， 所述步骤 A包含以下子步骤：  In addition, in the method, when the policy determining function or the application function initiates a service quality parameter modification process, the step A includes the following sub-steps:

所述策略决定功能或应用功能直接将授权的服务质量参数发送给所 述分组数据网关或认证授权和计费服务器； 或者通知分组数据网关需要 更新服务质量参数， 分组数据网关收到该通知后， 从策略决定功能或应 用功能获取新的授权的服务质量参数。  The policy determining function or the application function directly sends the authorized quality of service parameter to the packet data gateway or the authentication authorization and charging server; or notifying the packet data gateway that the quality of service parameter needs to be updated, after the packet data gateway receives the notification, Obtain new authorized quality of service parameters from the policy decision function or application function.

此外在所述方法中， 触发所述应用功能发起服务质量参数修改流程 的触发条件可以是以下之一：  In addition, in the method, the trigger condition for triggering the application function to initiate the service quality parameter modification process may be one of the following:

在会话控制级别发生了会话或业务修改；  A session or business modification occurred at the session control level;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system.

此外在所述方法中， 如果互通系统支持策略控制框架， 则所述分組 数据网关、 认证授权和计费服务器、 策略决定功能、 和应用功能共同协 商确定授权给用户终端的服务质量参数；  In addition, in the method, if the interworking system supports the policy control framework, the packet data gateway, the authentication authorization and accounting server, the policy determining function, and the application function jointly negotiate to determine the quality of service parameter authorized to the user terminal;

所述分组数据网关和所述认证授权和计费服务器之间的授权主要涉 及所述用户设备和分组数据网关之间承载的服务盾量的授权和限制； 所述分组数据网关、 策略决定功能和应用功能间的协商是业务 /会话 层面的协商交互和授权， 包含： 策略决定功能和应用功能间就业务 /会话 层之间的服务质量参数进行交互， 以及策略决定功能在将业务 /会话层面 的服务质量信息、 策略信息映射成为承载层的服务质量参数后传递给分 组数据网关。 The authorization between the packet data gateway and the authentication authorization and accounting server mainly relates to the authorization and limitation of the service shield carried between the user equipment and the packet data gateway; the packet data gateway, the policy determining function, and Negotiation between application functions is a negotiation interaction and authorization at the service/session level, including: interaction between policy decision functions and application functions on service quality parameters between service/session layers, and policy decision functions at the service/session level The service quality information and policy information are mapped to the quality of service parameters of the bearer layer and then passed to the points. Group data gateway.

此外在所述方法中， 还包含以下步骤：  In addition, in the method, the method further includes the following steps:

所述第一设备判断收到的所述要求的服务质量是否和当前隧道的属 性存在冲突， 如果是则直接或间接地向所述修改流程的发起设备返回拒 绝服务质量修改的消息， 其中可包含拒绝的原因；  Determining, by the first device, whether the requested quality of service is in conflict with the current tunnel attribute, and if yes, directly or indirectly returning a message rejecting the quality of service modification to the initiating device of the modification process, where the message may include Reason for rejection;

所述第一设备判断收到的所述要求的服务质量和所述认证授权和计 费服务器中存贮的用户服务质量信息是否不兼容， 如果是则将拒绝服务 质量修改的消息返回给修改流程的发起设备， 该消息中可包含拒绝的原 因。  Determining, by the first device, whether the requested quality of service and the user service quality information stored in the authentication authorization and accounting server are incompatible, and if yes, returning the service quality modification message to the modification process Initiating device, the message may contain the reason for the rejection.

此外在所述方法中， 所述第一设备在拒绝所述服务质量参数修改后， 可以执行以下操作：  In addition, in the method, after the first device rejects the modification of the quality of service parameter, the first device may perform the following operations:

维持当前的服务质量；  Maintain current service quality;

断开业务 /隧道连接； 或  Disconnect business/tunnel connection; or

根据网络侧的配置执行相应的操作。  Perform the corresponding operations according to the configuration on the network side.

此外在所述方法中， 在所述步骤 B和 C之间， 所述方法还可包含以 下步骤：  Further in the method, between the steps B and C, the method may further comprise the following steps:

D 所述第一设备询问相应的无线局域网接入网络和 /或无线局域网 接入网关是否可接受所述授权的服务质量参数， 再根据返回的应答确定 最终的服务质量参数。  D. The first device queries whether the corresponding WLAN access network and/or the WLAN access gateway can accept the authorized quality of service parameter, and then determines the final quality of service parameter based on the returned response.

此外在所述方法中， 所述步驟 C中， 当所述分组数据网关通过所述 认证授权和计费服务器转发服务质量参数通知时 , 该认证授权和计费服 务器可以釆用以下方式之一处理：  In addition, in the method, in the step C, when the packet data gateway forwards the service quality parameter notification through the authentication authorization and accounting server, the authentication authorization and accounting server may process in one of the following manners. :

将来自所述分组数据网关的服务质量参数不做任何修改直接发送给 所述无线局域网接入网络和 /或无线局域网接入网关；  Transmitting the quality of service parameters from the packet data gateway to the wireless local area network and/or the wireless local area network access gateway without any modification;

根据网络的状态、 网络侧的配置， 对来自所述分组数据网关的服务 质量参数作适应性修改后再发送给所述无线局域网接入网络和 /或无线局 i或网接入网关。  According to the state of the network and the configuration on the network side, the quality of service parameters from the packet data gateway are adaptively modified and then sent to the wireless local area network access network and/or the wireless local area network or the network access gateway.

此外在所述方法中， 在所述步骤 C中还包含以下子步驟：  In addition, in the method, the following sub-steps are further included in the step C:

所述认证授权和计费服务器保存授权的服务质量参数， 所保存的服 务质量参数可用于以下目的之一或其任意组合： The authentication authorization and accounting server saves the authorized quality of service parameters, and the saved service The quality parameter can be used for one of the following purposes or any combination thereof:

作为计费的依据；  As the basis for billing;

用于网管目的的服务质量和相关信息统计；  Service quality and related information statistics for network management purposes;

提供给其它服务器、 系统、 网絡实体或第三方。  Available to other servers, systems, network entities, or third parties.

此外在所述方法中， 当所述用户设备处于漫游状态时， 归属网络中 的功能实体和漫游网络中的功能实体之间的交互由认证授权和计费代理 中转。  In addition, in the method, when the user equipment is in a roaming state, the interaction between the functional entity in the home network and the functional entity in the roaming network is relayed by the authentication authority and the charging proxy.

此外在所述方法中， 所述认证授权和计费代理在转发服务质量参数 时， 可以采用以下方式之一：  In addition, in the method, when the authentication authorization and charging proxy forwards the service quality parameter, one of the following methods may be adopted:

将从所述认证授权和计费服务器收到的服务质量参数不做任何修改 直接转发给所述无线局域网接入网关和 /或无线局域网接入网络；  Forwarding the quality of service parameters received from the authentication and authorization server to the wireless local area network access gateway and/or the wireless local area network access network without any modification;

根据漫游网络的状态， 以及网絡侧的配置和策略， 对从所述认证授 权和计费服务器收到的服务质量参数进行修改， 然后转发给所述无线局 域网接入网关和 /或无线局域网接入网络。  Modifying the quality of service parameters received from the authentication authorization and accounting server according to the state of the roaming network and the configuration and policies on the network side, and then forwarding to the wireless local area network access gateway and/or wireless local area network access The internet.

此外在所述方法中， 在所述步骤 C中还包含以下子步骤：  In addition, in the method, the following sub-steps are further included in the step C:

所述认证授权和计费代理保存授权的服务质量参数， 所保存的服务 质量参数可用于以下目的之一或其任意組合：  The authentication authority and charging agent maintains the authorized quality of service parameters, and the saved quality of service parameters can be used for one of the following purposes or any combination thereof:

作为计费的依据；  As the basis for billing;

用于网管目的的服务质量和相关信息统计；  Service quality and related information statistics for network management purposes;

提供给其它服务器、 系统、 网络实体或第三方。 本发明还提供一种互通无线局域网中实现服务质量修改的系统， 包 括需要实施服务质量的网络实体； 还包括： 发起设备， 用于在业务进行时， 发起服务质量参数修改流程； 用于决策服务质量的第一设备， 用于根据所述修改流程的发起设备 所要求的服务质量参数， 和 /或用户的签约信息， 确定 4吏权给该用户终端 的服务质量参数； 将授权给该用户终端的服务质量参数通知给需要实施 服务质量的网络实体。  Available to other servers, systems, network entities, or third parties. The present invention also provides a system for implementing quality of service modification in an interworking wireless local area network, including a network entity that needs to implement quality of service; and further comprising: an initiating device, configured to initiate a service quality parameter modification process when the service is in progress; a quality first device, configured to determine, according to a quality of service parameter required by the initiating device of the modification process, and/or a subscription information of the user, a quality of service parameter to the user terminal; to authorize the user terminal The quality of service parameters are notified to the network entity that needs to implement the quality of service.

其中， 所述第一设备是认证授权和计费服务器。 其中， 所述第一设备是分组数据网关， 该分组数据网关通过与认证 授权和计费服务器的交互 , 从认证授权和计费服务器获取用户的签约信 其中， 所述需要实施服务质量的网络实体包含以下之一或其任意组 合： The first device is an authentication authorization and accounting server. The first device is a packet data gateway, and the packet data gateway obtains a subscription letter of the user from the authentication authorization and accounting server through interaction with the authentication authorization and accounting server, where the network entity that needs to implement the service quality Contains one of the following or any combination:

无线局域网接入网关、 无线局域网接入网络、 认证授权和计费服务 器、 分组数据网关、 以及认证授权和计费代理。  Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent.

其中， 通过分组数据网关和 /或认证授权和计费服务器将所述授权给 该用户终端的服务质量参数通知给需要实施服务质量的网络实体；  Transmitting, by the packet data gateway and/or the authentication authorization and accounting server, the quality of service parameter authorized to the user terminal to a network entity that needs to implement the quality of service;

由分组数据网关将授权给该用户终端的服务质量参数通知给用户终 端。  The user terminal is notified of the quality of service parameters authorized to the user terminal by the packet data gateway.

其中， 发起服务盾量参数修改流程的所述发起设备包括：  The initiating device that initiates the service shield parameter modification process includes:

用户终端、 无线局域网接入网絡、 无线局域网接入网关、 认证授权 和计费服务器、 认证授权和计费代理、 分组数据网关、 策略决定功能或 应用功能。  User terminal, WLAN access network, WLAN access gateway, authentication and authorization server, authentication and accounting agent, packet data gateway, policy decision function or application function.

通过比较可以发现， 本发明的主要特点在于， 提出了一个修改业务 QoS 参数的完整流程： 由用户终端或网络侧功能实体发起修改流程， 根 据要求的服务质量和用户的签约信息确定授权给用户的 QoS参数， 再由 将其通知用户终端和相关的实体。  By comparison, it can be found that the main feature of the present invention is that a complete process of modifying the service QoS parameters is proposed: the modification process is initiated by the user terminal or the network side functional entity, and the authorization is determined according to the required service quality and the user's subscription information. The QoS parameters are then notified to the user terminal and related entities.

此外， 可以由 PDG、 AAA服务器和可选的策略决定功能 （Policy In addition, the function can be determined by the PDG, AAA server and optional policies (Policy)

Decision Function, 简称 "PDF" )、 应用功能（Application Function, 简称 "AF" )协商确定授权给用户的 QoS参数，再由 PDG将其通知用户终端、 AAA服务器、 WLAN、 WAG等隧道相关的实体。 PDG在通知前还可以 和 WLAN、 WAG协商 QoS参数。 PDG与 WLAN、 WAG之间的交互通 过 AAA服务器中转，如果用户终端处于漫游状态， AAA服务器与 WLAN、 WAG之间的交互还要通过 AAA代理的中转。 AAA服务器和 AAA代理 转发 QoS参数时， 可以不加修改地转发， 也可以 ■据网络状态、 网络侧 的设置修改后转发。 本发明还提出了各种网络侧功能实体触发 QoS修改 流程的具体条件。 这种技术方案上的区别， 带来了较为明显的有益效果， 即提出了一 套完整的 QoS参数 "改方案。 通过发起、 授权、 协商和发布四个主要步 骤， 解决了 I-WLAN中的 QoS修改问题， 使得用户终端和各网络侧功能 实体（包括 WLAN、 WAG, AAA服务器、 AAA代理、 PDG、 PDF, AF 等 )都可以主动发起 QoS参数修改流程， 通过 AAA服务器和 AAA代理 的协同应用， 使本发明对于非漫游和漫游两种状态下的 QoS参数修改都 可以适用， 进而完善了整个互通系统的 QoS协商机制。 Decision Function (abbreviated as "PDF"), Application Function ("AF") negotiates to determine the QoS parameters granted to the user, and then the PDG notifies the user terminal, AAA server, WLAN, WAG and other tunnel-related entities. The PDG can also negotiate QoS parameters with the WLAN and WAG before notification. The interaction between the PDG and the WLAN and the WAG is relayed through the AAA server. If the user terminal is in the roaming state, the interaction between the AAA server and the WLAN and the WAG is also transited by the AAA proxy. When the AAA server and the AAA proxy forward the QoS parameters, they can be forwarded without modification. They can also be modified according to the network status and network side settings. The invention also proposes specific conditions for triggering the QoS modification process by various network side functional entities. The difference in this technical solution brings about a more obvious beneficial effect, that is, a complete set of QoS parameters is proposed. The four main steps of initiation, authorization, negotiation and release are solved in the I-WLAN. The QoS modification problem enables the user terminal and each network side functional entity (including WLAN, WAG, AAA server, AAA proxy, PDG, PDF, AF, etc.) to initiate the QoS parameter modification process actively, and the coordinated application of the AAA server and the AAA proxy. The invention can be applied to modify QoS parameters in both non-roaming and roaming states, thereby improving the QoS negotiation mechanism of the entire interworking system.

附图说明 DRAWINGS

图 1是现有技术中， UE处于非漫游状态下 I-WLAN的模型； 图 2是现有技术中， 一种 UE处于漫游状态下 I- LAN的模型； 图 3是现有技术中， 另一种 UE处于漫游状态下 I-WLAN的模型； 图 4是本发明的基本流程图；  1 is a model of an I-WLAN in a non-roaming state in the prior art; FIG. 2 is a model of an I-LAN in a roaming state in a prior art; FIG. 3 is a prior art A model of an I-WLAN in a roaming state; FIG. 4 is a basic flow chart of the present invention;

图 5是根据本发明实施例 1的 I-WLAN中服务质量修改流程图； 图 6是根据本发明实施例 2的 I-WLAN中服务质量修改流程图； 图 7是根据本发明实施例 3的 I-WLAN中服务质量修改流程图； 图 8是根据本发明实施例 4的 I-WLAN中服务质量修改流程图； 图 9是根据本发明实施例 5的 I-WLAN中服务质量修改流程图； 图 10是 居本发明实施例 6的 I-WLAN中服务质量修改流程图； 图 11是根据本发明实施例 7的 I-WLAN中服务质量修改流程图。 图 12是才艮据本发明实施例 8的 I-WLAN中服务质量 "改流程图。 图 13是根据本发明实施例 9的 I-WLAN中服务质量修改流程图。 图 14是根据本发明实施例 10的 I-WLAN中服务质量修改流程图。 具体实施方式 为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对 本发明作进一步的详细描述。  5 is a flowchart of service quality modification in an I-WLAN according to Embodiment 1 of the present invention; FIG. 6 is a flowchart of quality of service modification in an I-WLAN according to Embodiment 2 of the present invention; FIG. 7 is a flowchart according to Embodiment 3 of the present invention. FIG. 8 is a flowchart of service quality modification in an I-WLAN according to Embodiment 4 of the present invention; FIG. 9 is a flowchart of service quality modification in an I-WLAN according to Embodiment 5 of the present invention; Figure 10 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 6 of the present invention; Figure 11 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 7 of the present invention. Figure 12 is a flowchart showing the quality of service in the I-WLAN according to Embodiment 8 of the present invention. Figure 13 is a flow chart showing the modification of the quality of service in the I-WLAN according to Embodiment 9 of the present invention. Figure 14 is a flowchart according to the present invention. The present invention will be further described in detail below with reference to the accompanying drawings. FIG.

先说明一下本发明基本原理。 图 4示出了本发明的几个基本步骤， 下面逐一说明。  The basic principle of the invention will be explained first. Figure 4 shows several basic steps of the invention, which are explained below.

在步骤 1中， 无线局域网用户终端和分组数据网关之间建立了隧道， 业务进行中。 因为本发明是针对业务进行中 QoS修改的， 所以这一步是 以下各步骤的前提。 关于建立隧道时 QoS的协商和确定并不是本发明的 内容， 其一种具体实现方法可以参见申请号为 200510024965.5的中国专 利文献。 In step 1, a tunnel is established between the WLAN user terminal and the packet data gateway, and the service is in progress. Because the present invention is directed to the ongoing QoS modification of the service, this step is The premise of the following steps. The negotiation and determination of QoS when establishing a tunnel is not the content of the present invention. For a specific implementation method, refer to the Chinese patent document of Application No. 200510024965.5.

此后进入步骤 2，无线局域网用户终端或网络侧功能实体发起服务质 量参数修改流程。  Thereafter, proceeding to step 2, the WLAN user terminal or the network side functional entity initiates a service quality parameter modification process.

如果服务质量参数最终决策实体是分组数据网关， 无线局域网用户 终端或网络侧功能实体发起服务质量参数修改流程， 在服务质量参数修 改请求中， 发起修改流程的实体需要根据自身的能力和负载情况等， 告 知分组数据网关其要求的服务盾量参数。 在该步珮中， 不同的发起设备 会有不同的发起方式：  If the QoS parameter final decision entity is a packet data gateway, the WLAN user terminal or the network side functional entity initiates a QoS parameter modification process, and in the QoS parameter modification request, the entity that initiates the modification process needs to be based on its own capabilities and load conditions. , inform the packet data gateway of the required service shield parameter. In this step, different initiating devices will have different originating methods:

如果是无线局域网用户终端发起服务质量参数修改流程， 则服务盾 量参数修改请求发送给分组数据网关；  If the WLAN user terminal initiates the service quality parameter modification process, the service shield parameter modification request is sent to the packet data gateway;

如果是无线局域网接入网络发起服务盾量参数修改流程， 则服务质 量参数修改请求通过认证授权和计费服务器发送给分组数据网关；  If the WLAN access network initiates the service shield parameter modification process, the service quality parameter modification request is sent to the packet data gateway by the authentication authorization and accounting server;

如果是无线局域网接入网关发起服务质量参数修改流程， 则服务质 量参数修改请求通过认证授权和计费服务器发送给分组数据网关；  If the WLAN access gateway initiates the QoS parameter modification process, the service quality parameter modification request is sent to the packet data gateway by the authentication authorization and accounting server;

如果是认证授权和计费服务器发起服务质量参数修改流程， 则服务 盾量参数修改请求直接发送给分组数据网关；  If the authentication authorization and accounting server initiates the service quality parameter modification process, the service shield quantity parameter modification request is directly sent to the packet data gateway;

如果是策略决定功能（Policy Decision Function, 筒称 "PDF" )或应 用功能（Application Function, 简称 "AF" )发起服务盾量参数修改流程， 则不需要将服务质量参数修改请求发送给分组数据网关， 而是直接执行 下面的步骤 3, 即直接将授权的服务盾量参数发送给分组数据网关， 或者 通知分组数据网关， QoS 参数需要更新， 分组数据网关收到该通知后， 从策略决定功能或应用功能获取新的授权的服务质量参数。  If the Policy Decision Function ("PDF") or the Application Function ("AF") initiates the service shield parameter modification process, the service quality parameter modification request does not need to be sent to the packet data gateway. Instead, directly perform the following step 3, that is, directly send the authorized service shield parameter to the packet data gateway, or notify the packet data gateway, the QoS parameter needs to be updated, and after the packet data gateway receives the notification, the policy determines the function or The application function obtains new authorized quality of service parameters.

如果服务盾量参数最终决策实体是认证授权和计费服务器， 无线局 域网用户终端或网络侧功能实体发起服务质量参数 ~改流程， 在服务质 量参数修改请求中， 发起修改流程的实体需要根据自身的能力和负载情 况等， 告知认证授权和计费服务器其要求的服务质量参数。 在该步骤中， 不同的发起设备会有不同的发起方式： 如果是无线局域网接入网络、 无线局域网接入网关或分组数据网关 发起服务质量参数修改流程， 则服务质量参数修改请求直接发送给认证 授权和计费服务器； If the final decision entity of the service shield parameter is the authentication authorization and accounting server, the WLAN user terminal or the network side functional entity initiates the QoS parameter change process, and in the QoS parameter modification request, the entity that initiates the modification process needs to be based on its own The capability and load conditions, etc., inform the authentication authority and the billing server of the required quality of service parameters. In this step, different initiating devices will have different originating methods: If the WLAN access network, the WLAN access gateway, or the packet data gateway initiates the QoS parameter modification process, the QoS parameter modification request is directly sent to the authentication authorization and accounting server;

如果是无线局域网用户终端、 策略决策功能或应用功能发起服务盾 量参数修改流程， 则需要将服务质量参数修改请求发送给分组数据网关， 再由分组数据网关发送给认证授权和计费服务器。 分组数据网关发送给 认证授权和计费服务器之前可以做适应性修改。  If the WLAN user terminal, the policy decision function, or the application function initiates the service metric parameter modification process, the QoS parameter modification request needs to be sent to the packet data gateway, and then sent by the packet data gateway to the authentication authorization and accounting server. The packet data gateway can make adaptive modifications before sending it to the authentication and accounting server.

下面介绍各种发起设备可能发起服务质量参数修改流程的触发条 件：  The following describes the trigger conditions for various initiator devices to initiate the service quality parameter modification process:

无线局域网用户终端发起服务质量参数修改流程， 可能的触发条件 包括但不限于：  The WLAN user terminal initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:

无线局域网用户终端在不同能力的无线局域网接入网络间发生切 换， 例如从 IEEE 802.11b网络切换到 IEEE 802. llg网络；  The WLAN user terminal switches between wireless LAN access networks of different capabilities, for example, switching from an IEEE 802.11b network to an IEEE 802.11g network;

用户的业务在不同的无线局域网用户终端间发生切换；  The user's service switches between different WLAN user terminals;

隧道对应的业务的服务质量要求发生了变化；  The service quality requirements of the service corresponding to the tunnel have changed;

终端用户使用的业务发生变化。  The business used by the end user has changed.

无线局域网接入网络发起服务质量参数修改流程， 可能的触发条件 包括但不限于：  The WLAN access network initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:

无线局域网接入网络的网络状态发生变化， 能够提供或保证的服务 质量参数发生了变化， 例如， 网络负载发生变化， 可用资源发生变化等； 才艮据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  The network status of the WLAN access network changes, and the quality of service parameters that can be provided or guaranteed change, for example, the network load changes, the available resources change, etc.; according to the network side configuration, or from the operation and maintenance system Directive, modify the quality of service provided to the user.

无线局域网接入网关发起服务质量参数修改流程， 可能的触发条件 包括但不限于：  The WLAN access gateway initiates a service quality parameter modification process. Possible trigger conditions include but are not limited to:

无线局域网接入网关状态发生变化， 能够提供或保证的服务质量参 数发生了变化， 例如， 网络负载发生变化， 可用资源发生变化等；  The state of the WLAN access gateway changes, and the quality of service parameters that can be provided or guaranteed change, for example, changes in network load, changes in available resources, etc.;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量；  Modify the quality of service provided to the user according to the configuration on the network side or from the instructions of the operation and maintenance system;

无线局域网接入网关检测到隧道数据包没有对应的服务质量参数， 例如： 发现带有某个特定隧道标识的数据包没有对应的服务质量参数部 署在无线局域网接入网关。 The WLAN access gateway detects that the tunnel data packet does not have a corresponding quality of service parameter. For example: A packet with a specific tunnel ID is found to have no corresponding quality of service parameter deployed on the WLAN access gateway.

分组数据网关发起服务质量参数修改流程， 可能的触发条件包括但 不限于：  The packet data gateway initiates a service quality parameter modification process, and possible trigger conditions include but are not limited to:

分组数据网关状态发生变化， 能够提供或保证的服务庸量参数发生 了变化， 例如， 网络负载发生变化， 可用资源发生变化等；  The status of the packet data gateway changes, and the service mean parameters that can be provided or guaranteed change, for example, the network load changes, the available resources change, etc.

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量；  Modify the quality of service provided to the user according to the configuration on the network side or from the instructions of the operation and maintenance system;

分组数据网关检测到隧道数据包没有对应的服务质量参数， 例如： 发现带有某个特定隧道标识的数据包没有对应的服务质量参数；  The packet data gateway detects that the tunnel data packet does not have a corresponding quality of service parameter, for example: the data packet with a specific tunnel identifier is found to have no corresponding quality of service parameter;

分組数据网关接受到来自外部网络服务器的要求， 或检测到来自外 部网络的业务的服务盾量发生了变化。  The packet data gateway accepts requests from external network servers, or detects changes in the service shields of traffic from external networks.

认证授权和计费服务器发起服务盾量参数修改流程， 可能的触发条 件包括但不限于：  The authentication authorization and accounting server initiates the service shield parameter modification process. Possible trigger conditions include but are not limited to:

由于用户的签约信息等发生改变；  Due to changes in the user's contract information, etc.;

用户的计费状态发生变化；  The user's billing status changes;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system.

应用功能发起服务质量参数修改流程， 可能的触发条件包括但不限 于：  The application function initiates the service quality parameter modification process. Possible trigger conditions include but are not limited to:

在会话控制级别发生了会话 /业务修改；  Session/business modification occurred at the session control level;

根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system.

此后进入步骤 3 , 分组数据网关和认证授权和计费服务器， 可能还有 策略决定功能和应用功能， 通过协商确定授权给用户终端的服务质量参 数（修改后的服务质量参数）。  Thereafter, proceed to step 3, the packet data gateway and the authentication authorization and accounting server, and possibly the policy decision function and the application function, and determine the quality of service parameters (modified service quality parameters) authorized to the user terminal through negotiation.

如果是分组数据网关最终决定授权给用户终端的服务质量参数， 在 确定授权给用户终端的服务质量参数（修改后的服务质量参数） 时， 分 组数据网关自身的能力和负载情况也需要考虑在内。 分组数据网关和认 证授权和计费服务器之间的授权负责的是无线局域网用户终端和分组数 据网关之间承载的服务质量的授权和限制， 例如带宽、 时延等； 分组数 据网关、 策略决定功能和应用功能间的交互是业务 /会话层面的协商交互 和授权， 例如服务质量类别、 带宽等， 同时策略决定功能需要将业务 /会 话层面的服务质量信息映射到承载层的服务质量参数并传递给分组数据 网关。 If the packet data gateway finally determines the quality of service parameters authorized to the user terminal, the capacity and load of the packet data gateway itself need to be taken into consideration when determining the quality of service parameters (modified quality of service parameters) granted to the user terminal. . Packet data gateway and recognition The authorization between the license authorization and the accounting server is responsible for the authorization and limitation of the quality of service carried between the WLAN user terminal and the packet data gateway, such as bandwidth, delay, etc.; packet data gateway, policy decision function and application function The interaction is the negotiation interaction and authorization at the service/session level, such as the quality of service category, bandwidth, etc., and the policy decision function needs to map the service quality information of the service/session level to the quality of service parameters of the bearer layer and pass it to the packet data gateway.

如果任何一个网络实体发来的服务质量修改要求中携带的服务盾量 要求， 和认证授权和计费服务器中存贮的无线局域网用户的服务质量信 息不兼容（例如不符合该用户签约的服务质量）， 或是和当前的隧道的属 性存在冲突， 分组数据网关会返回拒绝服务质量修改消息 （该消息内可 能会包括拒绝的原因）。  If the service shield requirement carried in the quality of service modification request sent by any one of the network entities is not compatible with the quality of service information of the wireless local area network user stored in the authentication authority and the accounting server (for example, the quality of service not subscribed to the user is not met) ), or conflict with the properties of the current tunnel, the packet data gateway will return a denial of service modification message (the reason for the rejection may be included in the message).

如果是认证授权和计费服务器最终决定授权给用户终端的服务质量 参数， 则认证授权和计费服务器会比较其存储的无线局域网用户的服务 质量信息和任何一个网络实体发来的服务盾量修改要求中携带的服务质 量要求， 若存在不兼容的情况（例如不符合该用户签约的服务盾量）， 认 证授权和计费服务器会返回拒绝服务质量修改消息 （该消息内可能会包 括拒绝的原因）。 如果是向无线局域网接入网络、 无线局域网接入网关和 分组数据网关返回拒绝服务盾量修改消息， 则消息是直接由认证授权和 计费服务器返回给相应的实体； 如果是向无线局域网用户终端、 策略决 策功能或应用功能返回拒绝服务质量修改消息， 则消息是由认证授权和 计费服务器返回给分组数据网关， 再由分组数据网关返回给相应的实体。  If the authentication authorization and accounting server finally determines the quality of service parameters authorized to the user terminal, the authentication authorization and accounting server compares the stored quality of service information of the wireless local area network user with the service shield modification sent by any one of the network entities. The quality of service requirements carried in the request, if there is an incompatibility (for example, the service shield that does not meet the subscription of the user), the authentication and authorization server and the accounting server will return a denial of service modification message (this message may include the reason for the rejection) ). If the refusal service shield modification message is returned to the WLAN access network, the WLAN access gateway, and the packet data gateway, the message is directly returned to the corresponding entity by the authentication authorization and accounting server; if it is to the WLAN user terminal The policy decision function or the application function returns a denial of service quality modification message, and the message is returned to the packet data gateway by the authentication authorization and accounting server, and then returned to the corresponding entity by the packet data gateway.

发起服务质量修改请求的实体如果收到拒绝消息， 后续的操作包括 但不限于以下方法：  If the entity that initiates the quality of service modification request receives the rejection message, subsequent operations include but are not limited to the following methods:

不修改服务质量， 维持现在的服务质量；  Do not modify the quality of service and maintain the current quality of service;

断开业务 /隧道连接；  Disconnect the business/tunnel connection;

根据网络侧的配置执行相应的操作， 等等。  Perform the corresponding operations according to the configuration on the network side, and so on.

此后进入步驟 4, 该步骤是可选的。 如果是分组数据网关最终决定授 权给用户终端的服务质量参数， 那么分組数据网关以认证授权和计费服 务器为中介， 以步骤 3 中确定的授权的服务质量参数为基础， 分组数据 网关与无线局域网接入网络、 无线局域网接入网关和无线局域网用户终 端进行服务质量参数协商， 获得一个各个网络实体都能提供的服务质量 参数。 如果是认证授权和计费服务器最终决定授权给用户终端的服务质 量参数， 那么认证授权和计费服务器以步骤 3 中确定的授权的服务质量 参数为基础， 与分組数据网关、 无线局域网接入网络、 无线局域网接入 网关和无线局域网用户终端进行服务盾量参数协商， 获得一个各个网络 实体都能提供的服务质量参数。 Thereafter, proceed to step 4, which is optional. If the packet data gateway finally determines the quality of service parameter authorized to the user terminal, the packet data gateway is mediated by the authentication and authorization and accounting server, and the packet data is based on the authorized quality of service parameter determined in step 3. The gateway negotiates with the WLAN access network, the WLAN access gateway, and the WLAN user terminal for quality of service parameters to obtain a quality of service parameter that each network entity can provide. If the authentication authorization and accounting server finally determines the quality of service parameters authorized to the user terminal, then the authentication authorization and accounting server is based on the authorized quality of service parameters determined in step 3, with the packet data gateway, the wireless local area network access network. The WLAN access gateway and the WLAN user terminal perform service shield parameter negotiation to obtain a quality of service parameter that each network entity can provide.

接着， 进入步骤 5。 如果是分组数据网关最终决定授权给用户终端的 服务质量参数， 那么分组数据网关将授权的服务质量参数通知给无线局 域网接入网络、 无线局域网接入网关和 /或无线局域网用户终端。 如果在 该步驟之前执行了步骤 4，则分组数据网关将协商出的服务盾量参数通知 给无线局域网接入网络和 /或无线局域网接入网关。 如果某个网络实体不 能接受授权的服务^：量参数， 或不能提供授权的服务质量参数， 则根据 网络侧的配置， 提供降低的服务质量参数， 或发起断开连接流程， 或保 持现有的服务质量。 分组数据网关通过认证授权和计费服务器发送服务 质量参数通知时 , 认证授权和计费服务器对服务盾量参数的转发有两种 方式：  Then, proceed to step 5. If the packet data gateway ultimately determines the quality of service parameters granted to the user terminal, the packet data gateway notifies the wireless local area network access network, the wireless local area network access gateway, and/or the wireless local area network user terminal the authorized quality of service parameters. If step 4 is performed before this step, the packet data gateway notifies the negotiated service shield parameter to the WLAN access network and/or the WLAN access gateway. If a network entity cannot accept the authorized service parameter, or cannot provide the authorized quality of service parameter, provide the reduced quality of service parameter according to the network side configuration, or initiate the disconnection process, or maintain the existing service quality. When the packet data gateway sends the quality of service parameter notification through the authentication and authorization and accounting server, the authentication authorization and accounting server can forward the service shield parameter in two ways:

一种是不做任何修改直接发送给无线局域网接入网络和 /或无线局域 网接入网关；  One is to send directly to the WLAN access network and/or the wireless LAN access gateway without any modification;

另一种是 居网络的状态、 网絡侧的配置等条件， 对服务质量参数 作适应性修改后再发送给无线局域网和无线局域网接入网关。 网络的状 态的包括但不限于： 当前用户数、 当前负载、 已用存储器容量、 已用处 理器容量、 已用端口数、 可用存储器容量、 可用处理器容量、 可用端口 数等。  The other is the status of the network, the configuration on the network side, etc., and the service quality parameters are adaptively modified and then sent to the WLAN and the WLAN access gateway. The status of the network includes, but is not limited to, the current number of users, the current load, the used memory capacity, the used processor capacity, the number of used ports, the available memory capacity, the available processor capacity, the number of available ports, and so on.

认证授权和计费服务器需要存储这些服务质量参数， 用于特定目的 , 例如计费的依据、 用于网管目的的服务盾量和相关信息统计、 提供给其 它服务器、 系统、 网络实体或第三方等等。  The authentication and authorization and accounting servers need to store these quality of service parameters for specific purposes, such as the basis for charging, the amount of service shields used for network management purposes, and related information statistics, and provided to other servers, systems, network entities, or third parties. Wait.

如果是认证授权和计费服务器最终决定授权给用户终端的服务质量 参数， 认证授权和计费服务器将授权的服务质量参数通知给分组数据网 关、 无线局域网接入网络、 无线局域网接入网关和 /或无线局域网用户终 端。 如果在该步骤之前执行了步骤 4, 则认证授权和计费服务器将协商出 的服务质量参数通知给无线局域网接入网絡和 /或无线局域网接入网关。 如果某个网络实体不能接受授权的服务盾量参数， 或不能提供授权的服 务质量参数， 则根据网络侧的配置， 提供降低的服务质量参数， 或发起 断开连接流程， 也可能是保持现有的服务质量。 If the authentication authorization and accounting server finally determines the quality of service parameters authorized to the user terminal, the authentication authorization and accounting server notifies the packetized data network of the authorized quality of service parameters. Off, WLAN access network, WLAN access gateway and/or WLAN user terminal. If step 4 is performed prior to this step, the authentication authorization and accounting server notifies the negotiated quality of service parameters to the wireless local area network access network and/or the wireless local area network access gateway. If a network entity cannot accept the authorized service shield parameter, or cannot provide the authorized quality of service parameter, provide the reduced quality of service parameters according to the configuration on the network side, or initiate the disconnection process, or it may remain existing. Quality of service.

认证授权和计费服务器需要存储这些服务质量参数， 用于特定目的， 例如计费的依据、 用于网管目的的服务盾量和相关信息统计、 提供给其 它服务器、 系统、 网络实体或第三方等等。  The authentication and authorization and accounting servers need to store these quality of service parameters for specific purposes, such as the basis for charging, the amount of service shields used for network management purposes, and related information statistics, and provided to other servers, systems, network entities, or third parties. Wait.

以上各步骤是在非漫游情况下的， 如果用户在漫游情况下， 服务质 量参数修改请求的发送、 服务盾量参数的协商、 服务质量参数的通知等 还需要通过认证授权和计费代理的转发。  The above steps are in the case of non-roaming. If the user is roaming, the sending of the QoS parameter modification request, the negotiation of the service Shield parameter, and the notification of the QoS parameter need to be forwarded by the authentication and authorization and charging agent. .

在漫游情况下 , 分组数据网关通过认证授权和计费代理发送服务质 量参数通知时， 认证授权和计费代理对服务质量参数的转发有两种方式： 一种是不做任何修改直接发送给无线局域网接入网络和 /或无线局域 网接入网关；  In the case of roaming, when the packet data gateway sends the quality of service parameter notification through the authentication and authorization and charging agent, the authentication and authorization agent and the charging agent can forward the quality of service parameters in two ways: one is to send directly to the wireless without any modification. a local area network access network and/or a wireless local area network access gateway;

另一种是才艮据访问网络的状态、 访问网网络侧的配置等条件， 对服 务 量参数作适应性修改。 网络的状态的包括但不限于： 当前用户数、 当前负载、 已用存储器容量、 已用处理器容量、 已用端口数、 可用存储 器容量、 可用处理器容量、 可用端口数等。  The other is to adapt the service parameters according to the status of the access network and the configuration of the access network side. The status of the network includes, but is not limited to, the current number of users, the current load, the used memory capacity, the used processor capacity, the number of used ports, the available memory capacity, the available processor capacity, the number of available ports, and so on.

在漫游情况下， 如果需要， 认证授权和计费服务器也可以存储这些 服务质量参数， 用于特定目的， 例如计费的依据、 用于网管目的的服务 质量和相关信息统计、 提供给其它服务器、 系统、 网络实体或第三方等 等。  In the case of roaming, the authentication and authorization and accounting servers may also store these quality of service parameters for specific purposes, such as the basis of charging, the quality of service and related information statistics for network management purposes, and provision to other servers, System, network entity or third party, etc.

上面说明了本发明原理， 下面在多个实施例中具体说明 I-WLAN中 The principles of the present invention have been described above, and are described in detail in the various embodiments below.

QoS的修改方法。 The method of modifying QoS.

实施例 1: 无线局域网用户终端发起 QoS修改（由分组数据网关最 终确定授权给用户终端的服务盾量参数）， 如图 5所示。  Embodiment 1: The WLAN user terminal initiates QoS modification (the packet data gateway finally determines the service shield parameter authorized to the user terminal), as shown in FIG.

步骤 1 , WLAN UE和 PDG之间建立了隧道， 业务进行中； 步骤 2， WLAN UE向 PDG发起 QoS修改请求； Step 1: A tunnel is established between the WLAN UE and the PDG, and the service is in progress. Step 2: The WLAN UE initiates a QoS modification request to the PDG.

步驟 3， AAA服务器上存储着 WLAN用户的签约信息， 其中包括 QoS信息， PDG和 AAA服务器之间就 QoS参数进行授权， 对提供给用 户的 QoS参数进行授权；  Step 3: The AAA server stores the subscription information of the WLAN user, including the QoS information, and the QoS parameter is authorized between the PDG and the AAA server to authorize the QoS parameters provided to the user.

步骤 4， 如果互通系统支持策略控制框架（即互通系统可以与 PDF 和 AF交互）， 则还存在 PDG、 PDF和 AF之间就 QoS参数等信息进行的 授权、 指示等步骤， 这里暂时略去， 在实施例 6中详细说明；  Step 4: If the interworking system supports the policy control framework (that is, the interworking system can interact with the PDF and the AF), there are also steps such as authorization, indication, and the like for the QoS parameters between the PDG, the PDF, and the AF. Described in detail in Embodiment 6;

步驟 5， PDG通过 AAA服务器将修改后的 QoS参数通知给 WLAN AN和 WAG。 同时， AAA服务器存储 QoS参数。  Step 5: The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server. At the same time, the AAA server stores QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性 4务改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网络实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLAN AN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to the requirements. At the same time, the AAA proxy may also store QoS parameters. In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.

步骤 6, PDG向 WLAN UE发送 QoS修改请求应答。  Step 6. The PDG sends a QoS modification request response to the WLAN UE.

实施例 2: 无线局域网接入网络发起 QoS修改（由分组数据网关最 终确定授权给用户终端的服务质量参数）， 如图 6所示。  Embodiment 2: The WLAN access network initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1 , 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步骤 2, WLAN AN通过 AAA服务器向 PDG发起 QoS参数修改请 求；  Step 2: The WLAN AN initiates a QoS parameter modification request to the PDG through the AAA server.

步驟 3 , 同实施例 1的步骤 3;  Step 3, the same as step 3 of the embodiment 1;

步骤 4, PDG通过 AAA服务器将修改后的 QoS参数通知给 WAG, 同时， 直接将修改后的 QoS参数通知给 WLAN UE。 同时， AAA服务器 存储 QoS参数。  Step 4: The PDG notifies the modified QoS parameter to the WAG through the AAA server, and directly notifies the WLAN UE of the modified QoS parameter. At the same time, the AAA server stores the QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数 ^适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网络实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLAN AN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。 步骤 5 , PDG向 WLANAN发送 QoS修改请求应答。 In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can modify the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG. Step 5: The PDG sends a QoS modification request response to the WLAN AN.

本实施例中，在 QoS修改后 (步骤 3和步骤 4之间），也可以有 PDG、 In this embodiment, after the QoS modification (between step 3 and step 4), there may also be a PDG,

PDF和 AF之间的交互， 该交互流程的细节可以参见实施例 6中的步骤 3 到步骤 7。 The interaction between the PDF and the AF. For details of the interaction process, refer to steps 3 to 7 in Embodiment 6.

实施例 3: 无线局域网接入网关发起 QoS修改（由分组数据网关最 终确定授权给用户终端的服务质量参数）， 如图 7所示。  Embodiment 3: The WLAN access gateway initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1 , 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步骤 2, WAG通过 AAA服务器向 PDG发起 QoS参数修改请求； 步驟 3 , 同实施例 1的步骤 3;  Step 2, the WAG initiates a QoS parameter modification request to the PDG through the AAA server; Step 3, Step 3 of Embodiment 1;

步骤 4, PDG通过 AAA服务器将修改后的 QoS参数通知给 WLAN Step 4: The PDG notifies the WLAN of the modified QoS parameters through the AAA server.

AN, 同时， 直接将修改后的 QoS参数通知给 WLAN UE。 同时， AAA 服务器存储 QoS参数。 The AN, at the same time, directly notifies the WLAN UE of the modified QoS parameters. At the same time, the AAA server stores the QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网络实体的能力， 以 及网絡侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLAN AN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.

步骤 5, PDG向 WAG发送 QoS修改请求应答。  Step 5. The PDG sends a QoS modification request response to the WAG.

本实施例中，在 QoS修改后 (步骤 3和步骤 4之间），也可以有 PDG、 PDF和 AF之间的交互， 该交互流程的细节可以参见实施例 6中的步骤 3 到步驟 7。  In this embodiment, after the QoS modification (between step 3 and step 4), there may be interaction between the PDG, the PDF, and the AF. For details of the interaction procedure, refer to step 3 to step 7 in Embodiment 6.

实施例 4: 分组数据网关发起 QoS修改（由分组数据网关最终确定 授权给用户终端的服务质量参数）， 如图 8所示。  Embodiment 4: The packet data gateway initiates QoS modification (the quality of service parameters authorized to the user terminal is finally determined by the packet data gateway), as shown in FIG.

步驟 1 , 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步骤 2, 同实施例 1的步骤 3;  Step 2, the same as step 3 of the embodiment 1;

步骤 3 , PDG通过 AAA服务器将修改后的 QoS参数通知给 WLAN AN和 WAG, 同时， 直接将修改后的 QoS参数通知给 WLAN UE。 同时， AAA服务器存储 QoS参数。  Step 3: The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server, and directly notifies the WLAN UE of the modified QoS parameters. At the same time, the AAA server stores QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可以存储 QoS参数。 另外， 根据网络实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网絡实体， 例如只通知 WLA AN, 或只通知 WAG, 或只通知 WLANAN和 WAG。 In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA agent can adapt the QoS parameters or do not modify it as needed. At the same time, the AAA agent can also store QoS parameters. In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLA AN, or only the WAG, or only the WLAN AN and the WAG.

本实施例中，在 QoS修改后 (步骤 2和步骤 3之间），也可以有 PDG、 In this embodiment, after the QoS modification (between step 2 and step 3), there may also be a PDG,

PDF和 AF之间的交互，该交互流程的细节可以参见实施例 6中的步骤 3 到步骤 7。 For the interaction between the PDF and the AF, the details of the interaction flow can be referred to step 3 to step 7 in Embodiment 6.

实施例 5: 应用功能发起 QoS修改（ 由分组数据网关最终确定授权 给用户终端的服务质量参数）， 如图 9所示。  Embodiment 5: The application function initiates QoS modification (the packet quality data gateway finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1， 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步驟 2， AF被触发向 PDF提供更新的业务信息；  Step 2, the AF is triggered to provide updated service information to the PDF;

步骤 3， AF向 PDF提供更新的业务信息；  Step 3, the AF provides the updated service information to the PDF;

步骤 4， PDF更新会话 /业务的授权信息；  Step 4, PDF update session/service authorization information;

步骤 5, PDF向 PDG发送 COPS DEC (决策 ) 消息， 根据会话的修 改去对授权进行更新。 PDG向 PDF返回 COPS RPT ( 4艮告状态） 消息。 PDG发起 QoS修改流程；  Step 5. The PDF sends a COPS DEC (decision) message to the PDG to update the authorization based on the modification of the session. The PDG returns a COPS RPT (4) status message to the PDF. The PDG initiates a QoS modification process;

步驟 6, PDF向 AF返回步骤 3的确认；  Step 6, the PDF returns to the AF confirmation of step 3;

步骤 7, 同实施例 1的步骤 3;  Step 7, the same as step 3 of the embodiment 1;

步骤 8, PDG通过 AAA服务器将修改后的 QoS参数通知给 WLAN AN和 WAG, 同时， 直接将修改后的 QoS参数通知给 WLAN UE。 同时， AAA服务器存储 QoS参数。  Step 8. The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server, and directly notifies the WLAN UE of the modified QoS parameters. At the same time, the AAA server stores QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网絡实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLANAN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.

实施例 6， 如图 10所示。  Embodiment 6 is as shown in FIG.

步骤 1 , 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步骤 2, 同实施例 1的步骤 2; 步骤 3 , PDG向 PDF发送 COPS REQ (请求） 消息； 步骤 4, PDF向 AF发送授权请求。 A 在发给 PDF的应答中包括业 务信息， 用来对承载修改进行授权； Step 2, the same as step 2 of the embodiment 1; Step 3: The PDG sends a COPS REQ (Request) message to the PDF; Step 4, the PDF sends an authorization request to the AF. A includes service information in the response to the PDF, which is used to authorize the bearer modification;

步骤 5， PDF向 PDG发送 COPS DEC (决策） 消息， 告知关于授权 决策的结果；  Step 5. The PDF sends a COPS DEC (decision) message to the PDG to inform the result of the authorization decision;

步骤 6, PDG向 PDF返回 COPS RPT ( 4艮告状态） 消息；  Step 6. The PDG returns a COPS RPT (4 report status) message to the PDF;

步骤 7, 如果执行了步骤 4, PDF向 AF返回判决成功部署的应答； 步骤 8， 同实施例 1的步骤 3;  Step 7, if step 4 is performed, the PDF returns a response to the AF that successfully determines the deployment; Step 8, Step 3 of Embodiment 1;

步骤 9， PDG通过 AAA服务器将修改后的 QoS参数通知给 WLAN AN和 WAG。 同时， AAA服务器存储 QoS参数。  Step 9. The PDG notifies the WLAN AN and the WAG of the modified QoS parameters through the AAA server. At the same time, the AAA server stores QoS parameters.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可以存储 QoS参数。 另外， 根据网絡实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLA AN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy can also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLA AN, or only the WAG, or only the WLAN AN and WAG.

步骤 10， PDG向 WLAN UE发送 QoS 4务改请求应答。  Step 10: The PDG sends a QoS 4 redirection request response to the WLAN UE.

实施例 7: 带有 QoS协商的流程（由分组数据网关最终确定授权给 用户终端的服务质量参数）， 如图 11所示。  Embodiment 7: Flow with QoS negotiation (the quality of service parameters authorized to the user terminal is finally determined by the packet data gateway), as shown in FIG.

步驟 1-3 , 同实施例 1的步骤 1-3;  Step 1-3, the same as step 1-3 of the embodiment 1;

步驟 4, AAA服务器将 QoS参数发送给1 AG, WAG根据自身情况 做出判断： Step 4: The AAA server sends the QoS parameter to 1 AG, and the WAG makes a judgment according to its own situation:

4a ) . 如果能够接受该 QoS参数， 则向 AAA服务器返回同意应答， 然后执行步骤 4c, 否则执行步骤 4b;  4a). If the QoS parameter can be accepted, return a consent response to the AAA server, and then perform step 4c, otherwise perform step 4b;

4b ) . 如果不能接受该 QoS参数， 则向 AAA服务器返回由 WAG给 出的 QoS参数建议应答；  4b). If the QoS parameter cannot be accepted, the QoS parameter suggestion response given by the WAG is returned to the AAA server;

4c ) · AAA服务器将由 WAG返回的应答返回给 PDG。  4c) • The AAA server returns the response returned by the WAG to the PDG.

WAG的自身情况包括： 自身可用资源情况（例如： 可用带宽、 可用 存储器大小、 可用端口数、 可用处理器时间等）和网络侧设置的配置情 况。 步骤 5， AAA服务器将 QoS参数发送给 WLAN AN, WLAN AN根 据自身情况做出判断： The WAG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings. Step 5: The AAA server sends the QoS parameter to the WLAN AN, and the WLAN AN makes a judgment according to its own situation:

5a ) . 如果能够接受该 QoS参数， 则向 AAA服务器返回同意应答， 然后执行步骤 5c， 否则执行步骤 5b;  5a). If the QoS parameter can be accepted, return a consent response to the AAA server, and then perform step 5c, otherwise perform step 5b;

5b ). 如果不能接受该 QoS参数，则向 AAA服务器返回由 WLANAN 给出的 QoS参数建议应答；  5b). If the QoS parameter cannot be accepted, the QoS parameter suggestion response given by the WLANAN is returned to the AAA server;

5c ) . AAA服务器将由 WLANAN返回的应答返回给 PDG。  5c) The AAA server returns the response returned by the WLANAN to the PDG.

WLANAN的自身情况包括： 自身可用资源情况（例如： 可用带宽、 可用存储器大小、 可用端口数、 可用处理器时间等）和网络侧设置的配 置情况。  The WLANAN's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.

根据 WAG和 /或 WLAN AN的实际情况和网络侧的配置， 在步骤 4 和步骤 5 , 如果 WAG和 /或 WLAN AN不能接受由 AAA服务器 /AAA代 理发来的 QoS参数， 也可以通过 AAA服务器 /AAA代理向 PDG返回失 败应答。  According to the actual situation of the WAG and/or WLAN AN and the configuration on the network side, in steps 4 and 5, if the WAG and/or WLAN AN cannot accept the QoS parameters sent by the AAA server/AAA proxy, it can also pass the AAA server/ The AAA proxy returns a failure response to the PDG.

步骤 6， PDG根据步驟 4、 步驟 5获得的应答， 进行决策确定最终提 供给用户的 QoS参数：  Step 6. Based on the responses obtained in step 4 and step 5, the PDG makes a decision to determine the QoS parameters that are ultimately provided to the user:

6a ) .如果决策失败， 或者通过 AAA服务器 /AAA代理， 收到了来 自 WAG和 /或 WLAN AN的失败应答， PDG向用户返回隧道建立失败消 息或隧道建立拒绝消息， 并指明失败 /拒绝的原因， 终止整个流程不再向 下进行， 同时， 指示 AAA服务器、 AAA代理、 WAG、 WLAN AN等相 关实体删除用户相关的 QoS信息和其他信息；删除 PDG上存储的用户相 关的信息。 否则  6a). If the decision fails, or receives a failure response from the WAG and/or WLAN AN through the AAA server/AAA proxy, the PDG returns a tunnel establishment failure message or tunnel establishment rejection message to the user and indicates the reason for the failure/rejection. The termination of the entire process is no longer performed downward. At the same time, the AAA server, the AAA proxy, the WAG, the WLAN AN, and the like are instructed to delete the user-related QoS information and other information; and the user-related information stored on the PDG is deleted. Otherwise

6b ) .执行步骤 7。  6b) . Go to step 7.

步骤 7， PDG将步骤 6中确定的供给用户的 QoS参数发送给 AAA 服务器。 AAA服务器存储该信息用于特定目的 （例如： 计费、 业务统计 来自 WLANAN和 WAG的应答。 另夕卜，根据网络实体的能力， 以及网絡 侧的配置， QoS参数也可能只通知部分网络实体，例如只通知 WLANAN, 或只通知 WAG , 或只通知 WLAN A 和 WAG。 步骤 8, PDG向 WLAN UE发送 QoS修改请求应答。 In step 7, the PDG sends the QoS parameter of the provisioning user determined in step 6 to the AAA server. The AAA server stores the information for a specific purpose (for example: charging, service statistics, responses from WLANAN and WAG. In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, For example, only WLANAN is notified, or only WAG is notified, or only WLAN A and WAG are notified. In step 8, the PDG sends a QoS modification request response to the WLAN UE.

本实施例中，在 QoS修改后 (步骤 3和步骤 4之间），也可以有 PDG、 In this embodiment, after the QoS modification (between step 3 and step 4), there may also be a PDG,

PDF和 AF之间的交互， 该交互流程的细节可以参见实施例 6中的步骤 3 到步骤 7。 The interaction between the PDF and the AF. For details of the interaction process, refer to steps 3 to 7 in Embodiment 6.

实施例 8: 无线局域网接入网络发起 QoS修改（ AAA服务器最终确 定授权给用户终端的服务质量参数）， 如图 12所示。  Embodiment 8: The WLAN access network initiates QoS modification (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1， 同实施例 1的步驟 1;  Step 1, the same as step 1 of the embodiment 1;

步骤 2, WLA AN向 AAA服务器发起 QoS参数修改请求； 步骤 3， AAA服务器根据用户签约的 QoS参数和 WLAN AN发来的 请求的 QoS, 决定向用户授权的 QoS参数；  Step 2: The WLA AN initiates a QoS parameter modification request to the AAA server. Step 3: The AAA server determines the QoS parameter authorized to the user according to the QoS parameter subscribed by the user and the requested QoS sent by the WLAN AN.

步骤 4, AAA服务器将修改后的 QoS参数通知给 WAG和 PDG; PDG 将修改后的 QoS参数通知给 WLAN UE。 同时， AAA服务器存储 QoS参 数。 AAA服务器存储该信息用于特定目的 （例如： 计费、 业务统计等）。  Step 4: The AAA server notifies the modified QoS parameters to the WAG and the PDG; the PDG notifies the WLAN UE of the modified QoS parameters. At the same time, the AAA server stores the QoS parameters. The AAA server stores this information for a specific purpose (eg billing, traffic statistics, etc.).

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网絡实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLANAN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only inform some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.

步骤 5, AAA服务器向 WLAN AN发送 QoS修改请求应答。  Step 5: The AAA server sends a QoS modification request response to the WLAN AN.

本实施例中，在 QoS修改后 (步骤 3和步骤 4之间 ),也可以有 PDG、 In this embodiment, after the QoS modification (between step 3 and step 4), there may also be a PDG,

PDF和 AF之间的交互， 该交互流程的细节可以参见实施例 6中的步骤 3 到步骤 7。 The interaction between the PDF and the AF. For details of the interaction process, refer to steps 3 to 7 in Embodiment 6.

实施例 9: 分组数据网关发起 QoS修改（ AAA服务器最终确定授权 给用户终端的服务质量参数）， 如图 13所示。  Embodiment 9: The packet data gateway initiates QoS modification (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1， 同实施例 1的步驟 1；  Step 1, the same as step 1 of the embodiment 1;

步骤 2, PDG向 AAA服务器发起 QoS参数修改请求；  Step 2: The PDG initiates a QoS parameter modification request to the AAA server.

步骤 3 , AAA服务器根据用户签约的 QoS参数和 PDG发来的请求的 QoS, 决定向用户授权的 QoS参数；  Step 3: The AAA server determines the QoS parameters authorized to the user according to the QoS parameters subscribed by the user and the QoS of the request sent by the PDG.

步骤 4至步骤 5, AAA服务器将修改后的 QoS参数通知给 WAG和 WLANAN; 同时， 向 PDG返回 QoS修改应答请求， 携带授权的 QoS参 数； PDG再将 QoS参数通知给 WLAN UE。 同时， AAA服务器存储 QoS 参数。 AAA服务器存储该信息用于特定目的（例如：计费、业务统计等）。 Step 4 to step 5, the AAA server notifies the WAG and the modified QoS parameters. At the same time, the QoS modification response request is returned to the PDG, and the authorized QoS parameter is carried; the PDG then notifies the WLAN UE of the QoS parameter. At the same time, the AAA server stores QoS parameters. The AAA server stores this information for a specific purpose (eg, billing, traffic statistics, etc.).

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）, 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另夕卜， 才 据网络实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLANAN, 或只通知 WAG， 或只通知 WLAN AN和 WAG。  In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, according to the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only notify some network entities, for example, only the WLAN AN, or only the WAG, or only the WLAN AN and WAG.

本实施例中，在 QoS修改后 (步骤 3和步骤 4之间），也可以有 PDG、 PDF和 AF之间的交互， 该交互流程的细节可以参见实施例 6中的步骤 3 到步骤 7。  In this embodiment, after the QoS modification (between step 3 and step 4), there may be interaction between the PDG, the PDF, and the AF. For details of the interaction procedure, refer to step 3 to step 7 in Embodiment 6.

实施例 10: 带有 QoS协商的流程（AAA服务器最终确定授权给用户 终端的服务质量参数）， 如图 14所示。  Embodiment 10: Flow with QoS negotiation (the AAA server finally determines the quality of service parameters authorized to the user terminal), as shown in FIG.

步骤 1 , 同实施例 1的步骤 1;  Step 1, the same as step 1 of the embodiment 1;

步驟 2, WLAN UE向 PDG发起 QoS修改请求； PDG向 AAA服务 器请求授权；  Step 2: The WLAN UE initiates a QoS modification request to the PDG; the PDG requests authorization from the AAA server;

步骤 3， AAA服务器上根据存储着 WLAN用户的签约信息进行 QoS 授权；  Step 3: The AAA server performs QoS authorization according to the subscription information of the WLAN user.

步骤 4, AAA服务器将 QoS参数发送给 WAG, WAG根据自身情况 做出判断：  Step 4: The AAA server sends the QoS parameters to the WAG, and the WAG makes a judgment according to its own situation:

4a). 如果能够接受该 QoS参数， 则向 AAA服务器返回同意应答， 否则执行步骤 4b;  4a). If the QoS parameter can be accepted, return a consent response to the AAA server, otherwise perform step 4b;

4b). 如果不能接受该 QoS参数， 则向 AAA服务器返回由 WAG给 出的 QoS参数建议应答；  4b). If the QoS parameter cannot be accepted, return the QoS parameter suggestion response given by the WAG to the AAA server;

WAG的自身情况包括： 自身可用资源情况（例如： 可用带宽、 可用 存储器大小、 可用端口数、 可用处理器时间等） 和网络侧设置的配置情 况。  The WAG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.

步骤 5, AAA服务器将 QoS参数发送给 WLAN AN, WLAN AN根 据自身情况做出判断： 5a). '如果能够接受该 QoS参数， 则向 AAA服务器返回同意应答， 否则执行步骤 5b; Step 5: The AAA server sends the QoS parameter to the WLAN AN, and the WLAN AN makes a judgment according to its own situation: 5a). 'If the QoS parameters can be accepted, return the consent response to the AAA server, otherwise perform step 5b;

5b). 如果不能接受该 QoS参数，则向 AAA服务器返回由 WLAN AN 给出的 QoS参数建议应答；  5b). If the QoS parameter cannot be accepted, return the QoS parameter suggestion response given by the WLAN AN to the AAA server;

WLANAN的自身情况包括： 自身可用资源情况（例如： 可用带宽、 可用存储器大小、 可用端口数、 可用处理器时间等）和网络侧设置的配 置情况。  The WLANAN's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.

步骤 6, AAA服务器将 QoS参数发送给 PDG, PDG根据自身情况做 出判断：  Step 6. The AAA server sends the QoS parameters to the PDG, and the PDG makes a judgment according to its own situation:

6a). 如果能够接受该 QoS参数， 则向 AAA服务器返回同意应答， 否则执行步驟 6b;  6a). If the QoS parameter can be accepted, return a consent response to the AAA server, otherwise perform step 6b;

6b). 如果不能接受该 QoS参数，则向 AAA服务器返回由 PDG给出 的 QoS参数建议应答；  6b). If the QoS parameter cannot be accepted, return the QoS parameter suggestion response given by the PDG to the AAA server;

PDG 的自身情况包括： 自身可用资源情况（例如： 可用带宽、 可用 存储器大小、 可用端口数、 可用处理器时间等）和网络侧设置的配置情 况。  The PDG's own situation includes: the availability of its own resources (for example: available bandwidth, available memory size, number of available ports, available processor time, etc.) and configuration of the network side settings.

根据 WAG和 /或 WLAN AN和 /或 PDG的实际情况和网络侧的配置， 在步骤 4、 步骤 5和步骤 6， 如果 WAG和 /或 WLAN AN和 /或 PDG不能 接受由 AAA服务器 /AAA代理发来的 QoS参数， 也可以通过 AAA代理 向 AAA服务器返回失败应答。  According to the actual situation of the WAG and/or WLAN AN and/or PDG and the configuration on the network side, in step 4, step 5 and step 6, if the WAG and/or WLAN AN and/or PDG cannot be accepted by the AAA server/AAA proxy The incoming QoS parameters can also return a failure response to the AAA server through the AAA proxy.

步骤 7, AAA服务器根据步骤 4、 5、 6返回的应答， 确定最终提供 给用户的 QoS参数， 并存储该参数用于特定目的 （例如： 计费、 业务统 计等)。  Step 7. The AAA server determines the QoS parameters finally provided to the user according to the responses returned in steps 4, 5, and 6, and stores the parameters for a specific purpose (for example, billing, service statistics, etc.).

步骤 8, AAA服务器将修改后的 QoS发送给 WLAN AN、 PDG和 WAG, 并接受来自 WLAN AN、 PDG和 WAG的应答。  Step 8. The AAA server sends the modified QoS to the WLAN AN, PDG, and WAG, and accepts responses from the WLAN AN, PDG, and WAG.

在漫游情况下， QoS参数的通知还需要通过 AAA代理转发（图未示）， 根据需要， AAA代理可以对 QoS参数做适应性修改，或者不做任何修改， 同时， AAA代理也可能存储 QoS参数。 另外， 根据网络实体的能力， 以 及网络侧的配置， QoS 参数也可能只通知部分网络实体， 例如只通知 WLANAN, 或只通知 WAG, 或只通知 WLAN AN和 WAG。 In the case of roaming, the notification of the QoS parameters also needs to be forwarded by the AAA proxy (not shown). The AAA proxy can adapt the QoS parameters or do not modify it according to requirements. At the same time, the AAA proxy may also store the QoS parameters. . In addition, depending on the capabilities of the network entity and the configuration on the network side, the QoS parameters may also only notify some network entities, for example, only notifications. WLANAN, or only notify WAG, or only WLAN AN and WAG.

步骤 9, PDG向 WLAN UE发送 QoS 改请求应答。  Step 9. The PDG sends a QoS change request response to the WLAN UE.

本实施例中， 在 QoS修改后， 也可以有: PDG、 PDF和 AF之间的交 互， 该交互流程的细节可以参见实施例 6中的步骤 3到步骤 7。  In this embodiment, after the QoS is modified, there may be: an interaction between the PDG, the PDF, and the AF. For details of the interaction process, refer to Step 3 to Step 7 in Embodiment 6.

综上所述， 本发明的方法在业务进行时， 用户终端或网络侧功能实 体作为发起设备发起服务质量参数修改流程； 用于决策服务质量的第一 设备根据所述修改流程的发起设备所要求的服务盾量参数， 和 /或用户的 签约信息， 确定授权给该用户终端的服务质量参数； 将授权给该用户终 端的服务质量参数通知给需要实施服务质量的网络实体。  In summary, when the service is performed, the user terminal or the network side functional entity initiates the service quality parameter modification process as the initiating device; the first device used for determining the service quality is required according to the initiating device of the modification process. The service shield quantity parameter, and/or the user's subscription information, determines a quality of service parameter authorized to the user terminal; and notifies the network quality entity that needs to implement the quality of service to the quality of service parameter authorized to the user terminal.

本发明还提供一种互通无线局域网中实现服务质量修改的系统， 包 括需要实施服务质量的网络实体； 还包括发起设备和用于决策服务质量 的第一设备； 其中， 所述发起设备用于在业务进行时， 发起服务质量参 数修改流程； 所述用于决策服务质量的第一设备用于根据所述修改流程 的发起设备所要求的服务质量参数， 和 /或用户的签约信息， 确定授权给 该用户终端的服务质量参数； 将授权给该用户终端的服务盾量参数通知 给需要实施服务质量的网络实体。  The present invention also provides a system for implementing quality of service modification in an interworking wireless local area network, including a network entity that needs to implement quality of service; and an initiating device and a first device for determining quality of service; wherein the initiating device is used to When the service is in progress, the service quality parameter modification process is initiated; the first device for determining the quality of service is used to determine the authorization according to the service quality parameter required by the initiating device of the modification process, and/or the subscription information of the user. The quality of service parameter of the user terminal; the service shield quantity parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service.

其中， 根据具体情况， 所述第一设备可以是认证授权和计费服务器。 第一设备还可以是分组数据网关 , 该分组数据网关通过与认证授权和计 费服务器的交互， 从认证授权和计费服务器获取用户的签约信息。  The first device may be an authentication and authorization and accounting server, as the case may be. The first device may also be a packet data gateway that obtains subscription information of the user from the authentication authorization and accounting server through interaction with the authentication authority and the billing server.

所述需要实施服务质量的网络实体包含以下之一或其任意组合： 无 线局域网接入网关、 无线局域网接入网络、 认证授权和计费服务器、 分 组数据网关、 以及认证授权和计费代理。  The network entity requiring implementation of quality of service comprises one or any combination of the following: a wireless local area network access gateway, a wireless local area network access network, an authentication and accounting server, a packet data gateway, and an authentication and accounting agent.

本发明的系统中， 通过分组数据网关和 /或认证授权和计费服务器将 所述授权给该用户终端的服务盾量参数通知给需要实施服务质量的网络 实体； 其中， 由分组数据网关将授权给该用户终端的服务质量参数通知 给用户终端。  In the system of the present invention, the service shield quantity parameter authorized to the user terminal is notified to the network entity that needs to implement the quality of service by the packet data gateway and/or the authentication authorization and accounting server; wherein, the packet data gateway will authorize Notifying the user terminal of the quality of service parameter of the user terminal.

本发明的系统中， 发起服务质量参数修改流程的所述发起设备包括： 用户终端、 无线局域网接入网絡、 无线局域网接入网关、 认证授权和计 费服务器、 认证授权和计费代理、 分组数据网关、 策略决定功能或应用 功能。 In the system of the present invention, the initiating device that initiates the QoS parameter modification process includes: a user terminal, a WLAN access network, a WLAN access gateway, an authentication authorization and accounting server, an authentication authorization and a charging proxy, and packet data. Gateway, policy decision function or application Features.

虽然通过参照本发明的某些优选实施例， 已经对本发明进行了图示 和描述， 但本领域的普通技术人员应该明白， 可以在形式上和细节上对 其作各种改变， 而不偏离本发明的精神和范围。  Although the present invention has been illustrated and described with reference to the preferred embodiments of the present invention, those skilled in the art The spirit and scope of the invention.

Claims

权 利 要 求 Rights request 1. 一种互通无线局域网中服务 量修改方法， 其特征在于， 包含以 下步骤：  A method for modifying a service volume in an interworking WLAN, characterized in that it comprises the following steps: A在业务进行时， 用户终端或网络侧功能实体作为发起设备发起服 务质量参数修改流程；  When the service is in progress, the user terminal or the network side functional entity acts as the initiating device to initiate the service quality parameter modification process; B用于决策服务质量的第一设备根据所述修改流程的发起设备所要 求的服务质量参数， 和 /或用户的签约信息， 确定授权给该用户终端的服 务质量参数；  Determining, by the first device, the quality of the service quality parameter authorized by the initiating device of the modification process, and/or the subscription information of the user, the service quality parameter authorized to the user terminal; C将授权给该用户终端的服务质量参数通知给需要实施服务质量的 网络实体。  C notifies the network quality entity that needs to implement the quality of service to the quality of service parameters authorized to the user terminal. 2. 根据权利要求 1所述的互通无线局域网中服务质量修改方法， 其 特征在于， 所述第一设备是认证授权和计费服务器。  2. The method for modifying quality of service in an interworking wireless local area network according to claim 1, wherein the first device is an authentication authorization and accounting server. 3. 根据权利要求 1所述的互通无线局域网中服务质量修改方法， 其 特征在于， 所述第一设备是分组数据网关， 该分组数据网关通过与认证 授权和计费服务器的交互 , 从认证授权和计费服务器获取用户的签约信  The method for modifying quality of service in an interworking wireless local area network according to claim 1, wherein the first device is a packet data gateway, and the packet data gateway is authenticated and authorized by interaction with an authentication authorization and accounting server. And the billing server obtains the signing letter of the user 4.根据权利要求 2或 3所述的互通无线局域网中服务盾量修改方法， 其特征在于， 所述需要实施服务质量的网络实体包含以下之一或其任意 组合： The method for modifying a service shield in an interworking wireless local area network according to claim 2 or 3, wherein the network entity that needs to implement the quality of service comprises one or any combination of the following: 无线局域网接入网关、 无线局域网接入网络、 认证授权和计费服务 器、 分组数据网关、 以及认证授权和计费代理。  Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent. 5. 根据权利要求 4所述的互通无线局域网中服务质量修改方法， 其 特征在于， 通过分组数据网关和 /或认证授权和计费服务器将所述授权给 该用户终端的服务质量参数通知给需要实施服务质量的网络实体；  5. The method for modifying quality of service in an interworking wireless local area network according to claim 4, wherein the quality of service parameter authorized to the user terminal is notified to the user through a packet data gateway and/or an authentication authorization and accounting server. a network entity that implements quality of service; 其中， 由分组数据网关将授权给该用户终端的服务质量参数通知给 用户终端。  The packet data gateway notifies the user terminal of the quality of service parameter authorized to the user terminal. 6. 根据权利要求 5所述的互通无线局域网中服务质量修改方法， 其 特征在于 , 发起服务质量参数修改流程的所述网络侧功能实体包括： 无线局域网接入网络、 无线局域网接入网关、 认证授权和计费服务 器、 认证授权和计费代理、 分组数据网关、 策略决定功能或应用功能。The service quality modification method in the interworking wireless local area network according to claim 5, wherein the network side functional entity that initiates the QoS parameter modification process comprises: a wireless local area network access network, a wireless local area network access gateway, and an authentication Authorization and billing services , authentication and accounting agents, packet data gateways, policy decision functions, or application functions. 7. 根据权利要求 6所述的互通无线局域网中服务质量修改方法， 其 特征在于， 当所述用户终端发起服务质量参数修改流程时， 所述步骤 A 包含以下子步骤： The method for modifying the quality of service in the interworking wireless local area network according to claim 6, wherein when the user terminal initiates the service quality parameter modification process, the step A includes the following sub-steps: 用户设备向分组数据网关发起服务质量参数修改请求， 其中包含要 求的服务质量参数。  The user equipment initiates a quality of service parameter modification request to the packet data gateway, which includes the required quality of service parameters. 8. 根据权利要求 7所述的互通无线局域网中服务质量修改方法， 其 特征在于， 触发所述用户终端发起服务质量参数修改请求的触发条件包 括：  The method for modifying the quality of service in the interworking wireless local area network according to claim 7, wherein the triggering condition for triggering the user terminal to initiate the quality of service parameter modification request comprises: 所述用户终端在不同能力的无线局域网接入网络间发生切换； 用户的业务在不同的无线局域网用户终端间发生切换； 或， 所述用户终端和分组数据网关之间的隧道所对应业务的服务质量要 求发生了变化。  The user terminal switches between different capabilities of the wireless local area network access network; the user's service is switched between different wireless local area network user terminals; or the service corresponding to the tunnel between the user terminal and the packet data gateway The quality requirements have changed. 9. 根据权利要求 6所述的互通无线局域网中服务盾量修改方法， 其 特征在于， 当所述无线局域网接入网络发起服务质量参数修改流程时， 所述步骤 A包含以下子步骤：  The method for modifying a service shield in an interworking wireless local area network according to claim 6, wherein when the WLAN access network initiates a service quality parameter modification process, the step A includes the following sub-steps: 所述无线局域网接入网络向所述认证授权和计费服务器发起服务质 量参数修改请求， 其中包含要求的服务质量参数。  The WLAN access network initiates a service quality parameter modification request to the authentication authorization and accounting server, where the required quality of service parameter is included. 10. 根据权利要求 9 所述的互通无线局域网中服务质量修改方法， 其特征在于， 触发所述无线局域网接入网络发起服务质量参数修改请求 的触发条件包括：  The method for modifying the quality of service in the interworking wireless local area network according to claim 9, wherein the triggering condition for triggering the WLAN access network to initiate the QoS parameter modification request comprises: 所述无线局域网接入网络的网絡状态发生变化， 能够提供或保证的 服务质量参数发生了变化； 或者  The network state of the wireless local area network access network changes, and the quality of service parameters that can be provided or guaranteed are changed; or 根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system. 11. 根据权利要求 6 所述的互通无线局域网中服务质量修改方法， 其特征在于， 当所述无线局域网接入网关发起服务质量参数修改流程时 , 所述步骤 A包含以下子步骤：  The method for modifying the quality of service in the interworking wireless local area network according to claim 6, wherein when the WLAN access gateway initiates the QoS parameter modification process, the step A includes the following substeps: 所述无线局域网接入网关向所述认证授权和计费服务器发起服务盾 量参数修改请求， 其中包含要求的服务质量参数。 The WLAN access gateway initiates a service shield to the authentication authorization and accounting server A quantity parameter modification request that contains the required quality of service parameters. 12. 根据权利要求 11所述的互通无线局域网中服务盾量修改方法， 其特征在于， 触发所述无线局域网接入网关发起服务质量参数修改请求 的触发条件包括：  The method for modifying a service shield in an interworking wireless local area network according to claim 11, wherein the triggering condition for triggering the WLAN access gateway to initiate a QoS parameter modification request comprises: 所述无线局域网接入网关状态发生变化， 能够提供或保证的服务质 量参数发生了变化；  The state of the wireless local area network access gateway changes, and the quality of service parameters that can be provided or guaranteed are changed; 根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量； 或者  Modify the quality of service provided to the user according to the configuration on the network side, or from the instructions of the operation and maintenance system; or 所述无线局域网接入网关检测到隧道数据包没有对应的服务质量参 数。  The WLAN access gateway detects that the tunnel data packet does not have a corresponding quality of service parameter. 13. 根据权利要求 6所述的互通无线局域网中服务质量修改方法， 其特征在于， 当所述认证授权和计费服务器发起服务质量参数修改流程 时， 所述步驟 A包含以下子步骤：  The method for modifying the quality of service in the interworking wireless local area network according to claim 6, wherein when the authentication authorization and accounting server initiates the service quality parameter modification process, the step A includes the following sub-steps: 所述认证授权和计费服务器向所述分组数据网关发起服务质量参数 修改请求， 其中包含要求的服务质量参数。  The authentication authorization and accounting server initiates a quality of service parameter modification request to the packet data gateway, including the required quality of service parameter. 14. 根据权利要求 13所述的互通无线局域网中服务盾量修改方法, 其特征在于 , 触发所述认证授权和计费服务器发起服务质量参数修改请 求的触发条件包括：  The method for modifying a service shield in an interworking wireless local area network according to claim 13, wherein the triggering conditions for triggering the authentication authorization and the accounting server to initiate a service quality parameter modification request include: 用户的签约信息发生改变；  The user's subscription information changes; 用户的计费状态发生变化； 或者  The user's billing status changes; or 根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system. 15. 根据权利要求 6 所述的互通无线局域网中服务质量修改方法， 其特征在于， 当所述策略决定功能或应用功能发起服务盾量参数修改流 程时， 所述步骤 A包含以下子步骤：  The method for modifying the quality of service in the interworking wireless local area network according to claim 6, wherein when the policy determining function or the application function initiates a service shield parameter modification process, the step A includes the following substeps: 所述策略决定功能或应用功能直接将授权的服务质量参数发送给所 述分组数据网关或认证授权和计费服务器； 或者通知分组数据网关需要 更新服务质量参数， 分组数据网关收到该通知后， 从策略决定功能或应 用功能获取新的授权的服务质量参数。 The policy determining function or the application function directly sends the authorized quality of service parameter to the packet data gateway or the authentication authorization and charging server; or notifying the packet data gateway that the quality of service parameter needs to be updated, after the packet data gateway receives the notification, Obtain new authorized quality of service parameters from the policy decision function or application function. 16. 根据权利要求 15所述的互通无线局域网中服务质量修改方法， 其特征在于， 触发所述应用功能发起服务盾量参数修改流程的触发条件 包括： The service quality modification method in the interworking wireless local area network according to claim 15, wherein the triggering condition for triggering the application function to initiate the service shield quantity parameter modification process comprises: 在会话控制级别发生了会话或业务修改； 或者  A session or business modification occurred at the session control level; or 根据网络侧的配置， 或来自运营维护系统的指令， 修改提供给用户 的服务质量。  Modify the quality of service provided to the user based on the configuration on the network side, or from the instructions of the operation and maintenance system. 17. 根据权利要求 6 所述的互通无线局域网中服务盾量修改方法， 其特征在于， 如果互通系统支持策略控制框架， 则所述步驟 B中， 分组 数据网关、 认证授权和计费服务器、 策略决定功能和应用功能共同协商 确定授权给用户终端的服务质量参数；  The method for modifying a service shield in an interworking wireless local area network according to claim 6, wherein if the interworking system supports a policy control framework, in step B, the packet data gateway, the authentication authorization and accounting server, and the policy Determining a function and an application function to jointly determine a quality of service parameter authorized to the user terminal; 所述分组数据网关和所迷认证授权和计费服务器之间的授权涉及所 述用户设备和分组数据网关之间承载的服务质量的授权和限制；  The authorization between the packet data gateway and the authentication authorization and accounting server relates to authorization and restriction of quality of service carried between the user equipment and the packet data gateway; 所述分组数据网关、 策略决定功能和应用功能间的协商是业务 /会话 层面的协商交互和授权， 包含： 策略决定功能和应用功能间就业务 /会话 层之间的服务质量参数进行交互， 以及策略决定功能在将业务 /会话层面 的服务质量信息、 策略信息映射成为承载层的服务质量参数后传递给分 组数据网关。  The negotiation between the packet data gateway, the policy decision function and the application function is a negotiation interaction and authorization at the service/session level, and includes: interaction between the policy decision function and the application function on the quality of service parameter between the service/session layer, and The policy decision function is delivered to the packet data gateway after mapping the service quality information and policy information at the service/session level to the quality of service parameters of the bearer layer. 18. 根据权利要求 6 所述的互通无线局域网中服务质量修改方法， 其特征在于， 还包含以下步骤：  18. The method for modifying a quality of service in an interworking wireless local area network according to claim 6, further comprising the steps of: 所述第一设备判断收到的所述要求的服务质量是否和当前隧道的属 性存在冲突， 如果是则直接或间接地向所述修改流程的发起设备返回拒 绝服务质量修改的消息， 其中可包含拒绝的原因；  Determining, by the first device, whether the requested quality of service is in conflict with the current tunnel attribute, and if yes, directly or indirectly returning a message rejecting the quality of service modification to the initiating device of the modification process, where the message may include Reason for rejection; 所述第一设备判断收到的所述要求的服务质量和所述认证授权和计 费服务器中存贮的用户服务质量信息是否不兼容， 如果是则将拒绝服务 量修改的消息返回给修改流程的发起设备， 该消息中可包含拒绝的原 因。  Determining, by the first device, whether the requested quality of service and the user service quality information stored in the authentication authorization and accounting server are incompatible, and if yes, returning the service request modification message to the modification process Initiating device, the message may contain the reason for the rejection. 19. 根据权利要求 18所述的互通无线局域网中服务质量修改方法， 其特征在于， 所述第一设备在拒绝所述服务质量参数修改后， 执行以下 操作： 维持当前的服务质量； The method for modifying the quality of service in the interworking wireless local area network according to claim 18, wherein the first device performs the following operations after rejecting the modification of the quality of service parameter: Maintain current service quality; 断开业务 /隧道连接； 或  Disconnect business/tunnel connection; or 根据网络侧的配置执行相应的操作。  Perform the corresponding operations according to the configuration on the network side. 20. 根据权利要求 6所述的互通无线局域网中服务质量修改方法， 其特征在于， 在所述步骤 B和 C之间， 所述方法还可包含以下步骤： The method for modifying a quality of service in an interworking wireless local area network according to claim 6, wherein between the steps B and C, the method further comprises the following steps: D 所述第一设备询问相应的无线局域网接入网絡和 /或无线局域网 接入网关是否可接受所述授权的服务质量参数， 再根据返回的应答确定 最终的服务质量参数。 D. The first device queries whether the corresponding WLAN access network and/or the WLAN access gateway can accept the authorized quality of service parameter, and then determines the final quality of service parameter based on the returned response. 21. 根据权利要求 2所述的互通无线局域网中服务质量修改方法， 其特征在于， 所述步骤 c中， 当所述分组数据网关通过所述认正授权和 计费服务器转发服务质量参数通知时， 该认证授权和计费服务器采用以 下方式之一处理：  The method for modifying a quality of service in an interworking wireless local area network according to claim 2, wherein, in the step c, when the packet data gateway forwards the service quality parameter notification by using the authentication authorization and accounting server The authentication and accounting server is processed in one of the following ways: 将来自所述分组数据网关的服务质量参数不做任何修改直接发送给 所述无线局域网接入网络和 /或无线局域网接入网关； 或者  Transmitting the quality of service parameters from the packet data gateway to the wireless local area network and/or the wireless local area network access gateway without any modification; or 根据网络的状态、 网络侧的配置， 对来自所述分组数据网关的服务 质量参数作适应性修改后再发送给所述无线局域网接入网絡和 /或无线局 或网接入网关。  According to the state of the network and the configuration on the network side, the quality of service parameters from the packet data gateway are adaptively modified and then sent to the wireless local area network access network and/or the wireless local area network access gateway. 22. 根据权利要求 1至 3 中任一项所述的互通无线局域网中服务质 量修改方法， 其特征在于， 所述认证授权和计费服务器保存授权的服务 质量参数。  The method for modifying quality of service in an interworking wireless local area network according to any one of claims 1 to 3, wherein the authentication authorization and accounting server saves the authorized quality of service parameter. 23. 根据权利要求 6所述的互通无线局域网中服务质量修改方法， 其特征在于， 当所述用户设备处于漫游状态时， 归属网络中的功能实体 和漫游网络中的功能实体之间的交互由认证授权和计费代理中转。  The method for modifying a quality of service in an interworking wireless local area network according to claim 6, wherein when the user equipment is in a roaming state, the interaction between the functional entity in the home network and the functional entity in the roaming network is Authentication and authorization and billing agent transfer. 24. 根据权利要求 23所述的互通无线局域网中服务质量修改方法， 其特征在于， 所述认证授权和计费代理在转发服务质量参数时， 可以采 用以下方式之一：  24. The method for modifying a quality of service in an interworking wireless local area network according to claim 23, wherein the authentication authorization and the charging agent may use one of the following methods when forwarding the quality of service parameter: 将从所述认证授权和计费服务器收到的服务质量参数不做任何修改 直接转发给所述无线局域网接入网关和 /或无线局域网接入网絡； 或者 根据漫游网络的状态， 以及网络侧的配置和策略， 对从所述认证授 权和计费服务器收到的服务质量参数进行修改， 然后转发给所述无线局 域网接入网关和 /或无线局域网接入网络。 Forwarding the quality of service parameters received from the authentication and authorization server to the wireless local area network access gateway and/or the wireless local area network access network without any modification; or according to the state of the roaming network and the network side Configuration and policy, for granting from the certification The quality of service parameters received by the rights and accounting server are modified and then forwarded to the wireless local area network access gateway and/or the wireless local area network access network. 25. 根据权利要求 23所述的互通无线局域网中服务质量修改方法， 其特征在于， 所述认证授权和计费代理保存授权的服务质量参数。  25. The method for modifying quality of service in an interworking wireless local area network according to claim 23, wherein the authentication authority and the charging agent maintain the authorized quality of service parameters. 26. 一种互通无线局域网中实现服务盾量 ^丈的系统， 包括需要实 施服务质量的网络实体； 其特征在于， 还包括：  26. A system for implementing a service shield in a wireless local area network, comprising a network entity that needs to implement a quality of service; and wherein: 发起设备， 用于在业务进行时， 发起服务质量参数修改流程； 用于决策服务质量的第一设备， 用于根据所述修改流程的发起设备 所要求的服务质量参数， 和 /或用户的签约信息， 确定授权给该用户终端 的服务盾量参数； 将授权给该用户终端的服务质量参数通知给需要实施 服务质量的网络实体。  An initiating device, configured to initiate a service quality parameter modification process when the service is in progress, a first device used to determine the quality of the service, a service quality parameter required by the initiating device according to the modification process, and/or a subscription of the user Information, determining a service shield quantity parameter authorized to the user terminal; notifying a network quality entity that needs to implement the quality of service to the quality of service parameter authorized to the user terminal. 27. 根据权利要求 26所述的互通无线局域网中实现服务质量修改的 系统， 其特征在于， 所述第一设备是认证授权和计费服务器。  27. The system of claim 26, wherein the first device is an authentication authorization and accounting server. 28. 根据权利要求 26所述的互通无线局域网中实现服务质量修改的 系统， 其特征在于， 所述第一设备是分组数据网关， 该分组数据网关通 过与认证授权和计费服务器的交互， 从认证授权和计费服务器获取用户 的签约信息。  28. The system for implementing quality of service modification in an interworking wireless local area network according to claim 26, wherein the first device is a packet data gateway, and the packet data gateway interacts with an authentication authorization and accounting server. The authentication and authorization and accounting server obtains the subscription information of the user. 29. 根据权利要求 27或 28所述的互通无线局域网中实现服务质量 修改的系统， 其特征在于， 所述需要实施服务质量的网络实体包含以下 之一或其任意组合：  29. The system for implementing quality of service modification in an interworking wireless local area network according to claim 27 or 28, wherein the network entity that needs to implement quality of service comprises one or any combination of the following: 无线局域网接入网关、 无线局域网接入网絡、 认证授权和计费服务 器、 分组数据网关、 以及认证授权和计费代理。  Wireless LAN access gateway, wireless LAN access network, authentication and accounting server, packet data gateway, and authentication authority and billing agent. 30. 根据权利要求 29所述的互通无线局域网中服务质量修改系统， 其特征在于， 通过分组数据网关和 /或认证授权和计费服务器将所述授权 给该用户终端的服务质量参数通知给需要实施服务质量的网络实体； 由分组数据网关将授权给该用户终端的服务质量参数通知给用户终 端。  30. The quality of service modification system in an interworking wireless local area network according to claim 29, wherein the quality of service parameter authorized to the user terminal is notified to a need by a packet data gateway and/or an authentication authorization and accounting server A network entity implementing a quality of service; the quality of service parameters authorized to the user terminal are notified to the user terminal by the packet data gateway. 31. 根据权利要求 30所述的互通无线局域网中服务质量修改系统， 其特征在于， 发起服务质量参数修改流程的所述发起设备包括： 用户终端、 无线局域网接入网络、 无线局域网接入网关、 认证授权 和计费服务器、 认证授权和计费代理、 分组数据网关、 策略决定功能或 应用功能。 The service quality modification system in the interworking wireless local area network according to claim 30, wherein the initiating device that initiates the service quality parameter modification process includes: User terminal, WLAN access network, WLAN access gateway, authentication authority and accounting server, authentication authority and charging agent, packet data gateway, policy decision function or application function.
PCT/CN2006/000964 2005-05-15 2006-05-15 A method for changing qos in i-wlan and the system thereof WO2006122487A1 (en)

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Application Number Priority Date Filing Date Title
CN200510034688 2005-05-15
CN200510034688.6 2005-05-15
CNB2005100968136A CN100466607C (en) 2005-05-15 2005-09-06 Quality of Service Modification Method in Interworking Wireless Local Area Network
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CN113949626A (en) * 2020-06-29 2022-01-18 中兴通讯股份有限公司 Configuration method, terminal, server and configuration system
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