WO2006122487A1 - MÉTHODE ET SYSTÈME POUR CHANGER LA QdS DANS UN I-WLAN - Google Patents

MÉTHODE ET SYSTÈME POUR CHANGER LA QdS DANS UN I-WLAN 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
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WO
WIPO (PCT)
Prior art keywords
service
quality
local area
wireless local
parameter
Prior art date
Application number
PCT/CN2006/000964
Other languages
English (en)
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/fr

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    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43074—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of additional data with content streams on the same device, e.g. of EPG data or interactive icon with a TV program
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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

L’invention concerne une méthode et un système pour changer pendant le service la QdS dans un I-WLAN. La méthode comprend les étapes où l’entité de fonction réseau ou d’équipement utilisateur initie la procédure de changement et les serveurs PDG et AAA négocient les PDF et AF alternatifs pour déterminer le paramètre de QdS attribué à l’utilisateur et le notifient ensuite à l’entité réseau qui requiert le paramètre pour définir la QdS. La négociation du paramètre de QdS avec l’entité réseau qui requiert le paramètre pour définir la QdS peut également s’effectuer avant la notification. Le système inclut un dispositif d’initiation et un premier dispositif pour déterminer la QdS ; le dispositif d’initiation initie la procédure de changement de QdS pendant le service ; le premier dispositif détermine le paramètre de QdS attribué au terminal utilisateur en fonction du paramètre QdS requis par le dispositif d’initiation et/ou les informations d’abonnement de l’utilisateur ; le paramètre de QdS attribué au terminal utilisateur est notifié à l’entité réseau qui doit définir la QdS.
PCT/CN2006/000964 2005-05-15 2006-05-15 MÉTHODE ET SYSTÈME POUR CHANGER LA QdS DANS UN I-WLAN WO2006122487A1 (fr)

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CN200510034688.6 2005-05-15
CN200510034688 2005-05-15
CNB2005100968136A CN100466607C (zh) 2005-05-15 2005-09-06 互通无线局域网中服务质量修改方法
CN200510096813.6 2005-09-06

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EP2435917B1 (fr) 2009-05-29 2021-11-10 Emerson Climate Technologies Retail Solutions, Inc. Système et procédé pour surveiller et évaluer des modifications de paramètres de fonctionnement d'un équipement
CN102960020A (zh) * 2010-09-02 2013-03-06 华为技术有限公司 服务质量参数的处理方法、设备及系统
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CN103037449B (zh) * 2011-10-10 2018-01-19 中兴通讯股份有限公司 一种更新服务质量的方法及系统
CN103067768A (zh) * 2011-10-18 2013-04-24 蓝云科技股份有限公司 一种具有网络联机功能的智能电视
CN103944943A (zh) * 2013-01-22 2014-07-23 中国移动通信集团公司 一种数据传输方法和设备
CN103338467A (zh) * 2013-07-10 2013-10-02 南京邮电大学 无线网络中基于pst的用户行为学习方法
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