WO2006137705A1 - Appareil et methode pour negocier la qualite de service - Google Patents

Appareil et methode pour negocier la qualite de service Download PDF

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Publication number
WO2006137705A1
WO2006137705A1 PCT/KR2006/002415 KR2006002415W WO2006137705A1 WO 2006137705 A1 WO2006137705 A1 WO 2006137705A1 KR 2006002415 W KR2006002415 W KR 2006002415W WO 2006137705 A1 WO2006137705 A1 WO 2006137705A1
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WO
WIPO (PCT)
Prior art keywords
bearer
qos
wlan
manager
terminal
Prior art date
Application number
PCT/KR2006/002415
Other languages
English (en)
Inventor
Hye-Yeon Kwon
Hyung-Cheol Shin
Jae-Wook Shin
Kwang-Hyun Ro
Kwang-Ryul Jung
Kyung-Yul Cheon
You-Sun Hwang
Ae-Soon Park
Original Assignee
Electronics And Telecommunications Research Institute
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
Priority claimed from KR1020060050828A external-priority patent/KR100788889B1/ko
Application filed by Electronics And Telecommunications Research Institute filed Critical Electronics And Telecommunications Research Institute
Priority to US11/922,847 priority Critical patent/US20090225705A1/en
Priority to EP06768996A priority patent/EP1894349A4/fr
Priority to CN200680022604XA priority patent/CN101218783B/zh
Publication of WO2006137705A1 publication Critical patent/WO2006137705A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/80—Actions related to the user profile or the type of traffic
    • H04L47/805—QOS or priority aware
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
    • H04L41/5054—Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/78—Architectures of resource allocation
    • H04L47/783—Distributed allocation of resources, e.g. bandwidth brokers
    • H04L47/785—Distributed allocation of resources, e.g. bandwidth brokers among multiple network domains, e.g. multilateral agreements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/82—Miscellaneous aspects
    • H04L47/824—Applicable to portable or mobile terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels

Definitions

  • the present invention relates to a method for negotiating a quality of service (QoS) and an apparatus using the same.
  • the present invention relates to a gateway and user equipment that negotiate a QoS in a network interworking system. Since a digital cellular-based second generation mobile communication system has emerged, an International Mobile Telecommunication 2000 (IMT-2000) which is a third generation (3G) mobile communication was specified as the standard protocol for providing high quality worldwide multimedia services by the International Telecommunication Union (ITU).
  • IMT-2000 International Mobile Telecommunication 2000
  • 3G International Telecommunication Union
  • the 3G mobile communication system provides global roaming by using a consistent wireless access scheme with a single frequency bandwidth so that users can obtain services anytime and anywhere, and also provides wireless multimedia services such as a conventional voice service, images, moving pictures, a video phone, and Internet access by supporting up to 2Mbps transmission speed with high bandwidth.
  • the 3G mobile communication system is now broadly divided into a Universal Mobile Telecommunication System (UMTS) for Europe and Japan and a Code Division Multiple Access 2000 (CDMA-2000) for America.
  • UMTS Universal Mobile Telecommunication System
  • CDMA-2000 Code Division Multiple Access 2000
  • the standardization work for CDMA-2000 is being carried out under the supervision of the Third Generation Partnership Projects 2 (3GPP2).
  • the CDMA-2000 uses a North American Standard Interim Standard (ANSI)-41-based network protocol as a core network, and utilizes a synchronous network scheme as an interface for synchronization between base stations.
  • the standardization work for the UMTS is being carried out under the
  • the UMTS uses a Global System for Mobile Communications (GSM) based mobile application part (GSM-MAP) as a core network, and utilizes an asynchronous network scheme as an air interface since synchronization between base stations is not required.
  • GSM Global System for Mobile Communications
  • GSM-MAP Global System for Mobile Communications
  • the 3GPP uses the concept of Release in the evolution of the system standardization, and 3GPP wireless local area network (WLAN) interworking is one of the main issues that have been developed in Release 6.
  • the purpose of the 3GPP WLAN interworking is to provide 3GPP service and functions to a user in a WLAN.
  • a QoS negotiation method in the 3-GPP WLAN interworking system has not been proposed.
  • the 3G mobile communication system provides a packet-switched service rather than a circuit-switched service.
  • a communication message is broken into data units, called packets.
  • Each packet is routed through a network based on the destination address contained in each packet.
  • the 3G mobile communication system is an all-IP network that enables the nodes of the network to communicate with each other based on an Internet protocol (IP), and a communication message is exchanged through the IP in the 3G mobile communication system.
  • IP Internet protocol
  • a communication message is broken into a plurality of packets and thus a plurality of users can share the same channel within the network.
  • the node can apply the same priority or policy to the input packets or to a group of packets. This is called a best effort scheme.
  • QoS quality of service
  • VoIP voice over IP
  • the 3G mobile communication service has been developed for providing various services including voice service, image and moving pictures, a video phone, and Internet access, and therefore, standardization for QoS is demanded.
  • a method for negotiating a QoS in the 3-GPP WLAN interworking system has not been proposed yet.
  • the present invention has been made in an effort to provide a gateway and a terminal negotiating a quality of service (QoS) in a network interworking system, and a QoS negotiation method thereof.
  • QoS quality of service
  • An exemplary gateway includes a core network, a first bearer manager, a second bearer manager, a third bearer manager, and a controller.
  • the core network connects a wireless access network and a packet switched service network, and the first, second, and third bearer managers enable communication between the core network and the packet switched service network.
  • the first bearer manager manages a first bearer packet exchange with an end terminal included in the packet switched service network.
  • the second bearer manager manages a second bearer for packet exchange with a terminal accessing the wireless access network.
  • the third bearer manager manages a third bearer for packet exchange between the terminal and the end terminal.
  • the controller determines whether to accept a first QoS requested by the terminal for establishing the third bearer through the second bearer in accordance with an available resource of the first bearer.
  • the controller determines whether to accept the first QoS in accordance with available resources of the first and second bearers. .
  • An exemplary terminal exchanges a packet with a packet switched service network connected with a wireless access network through a core network, and includes a first bearer manager, a second bearer manager, and a controller.
  • the first bearer manages a first bearer for packet exchange with an end terminal included in the packet switched service network
  • the second bearer manager manages a second bearer for packet exchange with an end terminal included in the packet switched service network.
  • the controller manages a resource allocated to the first bearer.
  • the second bearer manager inquires to the controller whether to accept the first QoS for establishing the second bearer, the controller determines whether to accept
  • the second bearer manager requests the first QoS from the gateway through the first bearer when the controller accepts the first QoS.
  • An exemplary quality of service (QoS) negotiation method is used by a gateway that enables communication between a core network and a packet switched service network, the core network connecting a wireless access network and the packet switched service network.
  • the gateway establishes a first bearer for packet exchange with an end terminal included in the packet switched service network.
  • the gateway receives a first QoS requested by a terminal for establishing a second bearer for packet exchange with the gateway, the terminal accessing the wireless access network.
  • the gateway accepts the first QoS when the first QoS is adequate for a QoS of the first bearer.
  • the gateway establishes a second bearer when the first QoS is accepted.
  • the gateway receives a second QoS requested by the terminal for establishing a third bearer for packet exchange with the end terminal through the second bearer, accepts the second QoS when the second QoS is adequate for an available resource of the first bearer, and establishes the third bearer when the second QoS is accepted.
  • An exemplary quality of service (QoS) negotiation method is used by a terminal that exchanges a packet with a packet switched service network connected with a wireless access network through a core network.
  • the terminal requests a first QoS to the wireless access device for establishing a first bearer for packet exchange with a wireless access device included in the wireless access network. Then the terminal establishes the first bearer when the wireless access device accepts the first QoS.
  • the terminal requests a second QoS to a gateway through the first bearer for establishing a second bearer for packet exchange with the gateway, wherein the gateway enables communication between the core network and the packet switched service network. Then the terminal establishes the second bearer when the gateway accepts the second QoS.
  • the terminal requests a third QoS from the gateway through the second bearer for establishing a third bearer for packet exchange with an end terminal included in the packet switched service network, and establishes the third bearer when the gateway accepts the third QoS.
  • WLAN user equipment exchanges a data packet with an end terminal in the 3GPP packet-switched service network through efficient QoS negotiation.
  • the WLAN user equipment negotiates with a packet data gate for establishing an IP bearer for packet exchange with the end terminal so that efficient QoS negotiation can be achieved.
  • FIG. 1 shows a 3GPP-wireles local area network (WLAN) interworking system according to an exemplary embodiment of the present invention.
  • WLAN local area network
  • FIG. 2 shows a QoS management function for a WLAN 3GPP IP connection according to an exemplary embodiment of the present invention.
  • FIG. 3 is a flowchart of an IP bearer establishment process of WLAN user equipment according to an exemplary embodiment of the present invention.
  • FIG. 4 is a flowchart of a QoS negotiation process of a packet data gateway according to an exemplary embodiment of the present invention.
  • FIG. 5 is a flowchart of a QoS negotiation process of WLAN user equipment according to an exemplary embodiment of the present invention.
  • FIG. 6 shows a QoS management function for a WLAN direct IP connection according to an exemplary embodiment of the present invention.
  • a Third Generation Partnership Project (3-GPP) wireless local area network (WLAN) interworking system will now be described in detail with reference to FIG.1.
  • FIG. 1 shows a 3GPP-WLAN interworking system according to an exemplary embodiment of the present invention.
  • the 3-GPP WLAN interworking system includes WLAN user equipment (WLAN UE) 100, a WLAN access network (WLAN AN) 1 , a 3GPP core network 2, a 3GPP packet-switched service network 3, and an Internet (or Intranet) 4.
  • the WLAN UE 100 is a user terminal registered with the 3GPP packet-switched service network 3 and is able to access the WLAN AN 1.
  • the WLAN UE 100 may access only the WLAN AN 1 or access both the WLAN AN1 and a 3GPP access network.
  • the 3GPP access network includes a Node-B that provides wireless code division multiplexing access (WCDMA) wireless access and a radio network controller (RNC) that controls the Node-B.
  • a terminal that can access the 3GPP access network accesses the 3GPP packet-switched service network 3 through the 3GPP access network.
  • the WLAN UE 100 may be provided as a mobile device, a laptop computer, a notebook computer, or a PDA having a WLAN card, or may be provided as a mobile device, a laptop computer, a notebook computer, or a PDA having a WLAN card and a 3GPP access module.
  • the WLAN AN 1 provides WLAN access to the WLAN UE 100, and includes a plurality of WLAN access points (WLAN APs) 200, each of which wirelessly accesses the WLAN UE 100.
  • WLAN APs WLAN access points
  • the WLAN used in the present invention is based on a wireless LAN specified by the IEEE 802.11 WLAN standard, but that is not restrictive. Therefore, the WLAN AN 1 may be provided as a typical wireless access network, and the WLAN AP 200 may be provided as a base station or a wireless access terminal that corresponds to a Node-B.
  • the 3GPP core network 2 is a core network that connects the WLAN
  • the 3GPP core network 2 includes a WLAN access gateway (WAG) 300, a packet data
  • PGW Packet Control Gateway
  • the WAG 300 is a gateway via which data is exchanged between the
  • WLAN access network 1 and the 3GPP core network 2. Since the WLAN AN
  • the WAG 300 changes protocols for data exchange between the WLAN AN 1 and the 3GPP core network 2.
  • the PDG 400 is a gateway via which data is exchanged between the 3GPP core network 2 and the 3GPP packet-switched service network 3. Since the 3GPP core network 2 has a protocol that is different from that of the 3GPP packet-switched service network 3, the PDG 40 changes protocols for data exchange between the 3GPP core network 2 and the 3GPP packet-switched service network 3.
  • the 3GPP packet-switched service network 3 is a standard packet-switched service network specified by the 3GPP, and provides a 3GPP packet-switched service to the WLAN UE 100.
  • the WLAN UE 100 is provided with the 3GPP packet-switched service from the 3GPP packet-switched service network 3 via the WLAN AN 1 and the 3GPP core network 2, and this is typically called WLAN 3GPP IP access.
  • An ending network node (e.g., a server) included in the 3GPP packet-switched service network 3 and providing the 3GPP packet-switched service to the WLAN UE 100 is called a 3GPP end terminal 50.
  • the WLAN UE 100 directly accesses the Internet 4 through the WLAN AN 1 and receives IP-based services, and this is called WLAN direct IP access.
  • the Internet 4 includes an Internet end terminal 70 that provides the IP-based service.
  • the 3GPP AAA server 60 is a server handling user authorization, service authentication, and billing data.
  • the WLAN UE 100 is registered with the 3GPP AAA server 60 for WLAN 3GPP IP access or WLAN direct IP access.
  • the 3GPP AAA server 60 charges for a QoS served to
  • WLAN UE 100 and network and bandwidth usages.
  • the Internet 4 is a packet-switched service network, and includes an Internet end terminal 700 that provides Internet services.
  • a QoS management function for establishing a WLAN 3GPP IP connection according to an exemplary embodiment of the present invention will be described with reference to FIG. 2.
  • FIG. 2 shows a QoS management function for establishing a WLAN 3GPP IP connection according to an exemplary embodiment of the present invention.
  • the WLAN UE 100 includes a WLAN bearer service manager 110, an Interworking WLAN (I-WLAN) bearer service manager 120, an admission and capability controller 130, a converter 140, and an IP bearer service manager 150.
  • the WLAN AP 200 includes a WLAN bearer service manager 210, an access network manager 220, an admission and capability controller 230, and a Wn bearer service manager 240.
  • the WAG 300 includes a Wn bearer service manager 310, an access network manager 320, and a Wp bearer service manager 330.
  • the PDG 400 includes a Wp bearer service manager 410, an I-WLAN bearer service manager 420, an admission and capability controller 430, a converter 440, an IP bearer service manager 450, and an external bearer service manager 460. Interfaces between constituent elements of the WLAN UE 100 are as follows.
  • the I-WLAN bearer service manager 120 exchanges data with the WLAN bearer service manager 110, the admission and capability controller 130, and the converter 140 through an internal service primitive.
  • the converter 140 exchanges data with the I-WLAN bearer service manager 120 and the IP bearer service manager 150 also through an internal service primitive.
  • the internal service primitive indicates an interface function for exchanging data between layer modules, and includes a request primitive, an indication primitive, a response primitive, and a confirm primitive.
  • the request primitive is used when an upper layer requests a service from a lower layer.
  • the indication primitive is used when the lower layer informs an arrival of a request from a communication counterpart to the upper layer.
  • the response primitive is used when the upper layer transmits a response to the lower layer in response to the indication primitive.
  • the confirm primitive is used when the lower layer transmits a response to the upper layer in
  • a method for establishing a WLAN bearer B110 will be described.
  • the WLAN bearer service manager 110 of the WLAN UE 100 negotiates a QoS for establishing the WLAN bearer B110 with the WLAN bearer service manager 210 of the WLAN AP 200.
  • the WLAN bearer B110 is used for packet exchange between the WLAN UE 100 and the WLAN AP 200.
  • the admission and capability controller 230 of the WLAN AP 200 maintains information on resources allocated to the WLAN bearer B110 and an available resource of the WLAN bearer B110.
  • the WLAN bearer service manager 210 inquires to the admission and capability controller 230 whether the admission and capability controller 230 accepts the QoS requested by the WLAN bearer service manager 110 through the access network manager 220.
  • the admission and capability controller 230 determines whether to accept the request in accordance with the available resource of the WLAN bearer B110.
  • the admission and capability controller 230 rejects the request, the WLAN bearer service manager 110 and the WLAN bearer service manager 210 perform renegotiation.
  • the WLAN bearer service manager 110 and the WLAN bearer service manager 210 When the admission and capability controller 230 accepts the QoS, the WLAN bearer service manager 110 and the WLAN bearer service manager 210 generate, manage, and maintain the WLAN bearer B110 for supporting the negotiated QoS. At this time, the I-WLAN bearer service manager 120 receives information on the negotiated QoS and information on resources allocated to the WLAN bearer B110 and transmits the received information to the admission and capability controller 130. The admission and capability controller 130 maintains and manages information on a QoS supported by the WLAN bearer B110 and information on the resource allocated to the WLAN bearer B110.
  • the Wn bearer service manager 240 of the WLAN access point 200 and the Wn bearer service manager 310 of the WAG 300 generate, manage, and maintain a Wn bearer B 120.
  • a service of the Wn bearer B120 follows a best effort scheme. According to the best effort scheme, the same priority or the same policy is applied to packets or a group of packets.
  • the Wp bearer service manager 330 of the WAG 300 and the Wp bearer service manager 410 of the PDG 400 generate, manage, and maintain a Wp bearer B140.
  • a service of the Wn bearer B 140 is based on the best effort scheme.
  • the external bearer service manager 460 establishes, manages, and maintains an external bearer B160, used for packet exchange between the PDG 400 and the end terminal 500.
  • the I-WLAN bearer service manager 420 receives information on a QoS of the external bearer B160 or information on a resource allocated to the external bearer B160 from the external bearer service manager 460 and transmits the received information to the admission and capability controller 430.
  • the admission and capability controller 430 maintains and manages the information on the QoS of the external bearer B160 or information on the resource allocated to the external bearer B160.
  • the access network manager 220 of the WLAN access point 200 enables communication between the WLAN bearer service manager 210 and the Wn bearer service manager 240. That is, the access network manager 220 receives contents of a message that the WLAN bearer service manager 210 has received from the WLAN bearer service manager 110 by using an internal service primitive The access network manager 220 transmits the contents received from the WLAN bearer service manager 210 to the Wn bearer service manager 240 by using the internal service primitive. Then, the Wn bearer service manager 240 generates a message that includes the received contents, and provides the message to the Wn bearer service manager 310 of the WAG 300 by using a service of the Wn bearer B 120.
  • the access network manager 220 provides the internal service primitive transmitted from the Wn bearer service manager 240 to the WLAN bearer service manager 210.
  • the access network manager 220 of the WLAN access point 200 interworks with the admission and capability controller 230. That is, when receiving the internal primitive, including whether or not to accept a QoS request of the WLAN bearer service manager 110, from the WLAN bearer service manager 210, the access network manager 220 transmits the corresponding internal primitive to the admission and capability controller 230.
  • the access network manager 220 When receiving the internal primitive, including a result of the acceptance of the requested QoS, from the admission and capability controller 230, the access network manager 220 provides the corresponding internal primitive to the WLAN bearer service manager 210.
  • the access network manager 320 of the WAG 300 enables communication between the Wn bearer service manager 310 and the Wp bearer service manager 330.
  • a role of the access network manager 320 can be easily derived from the access network manager 220, and therefore, a further description will be omitted.
  • the I-WLAN bearer service manager 120 of the WLAN UE 100 negotiates a QoS for establishing an I-WLAN bearer B150 with the I-WLAN bearer service manager 420 and establishes the I-WLAN bearer B150.
  • the I-WLAN bearer B150 is used for packet exchange between the WLAN UE 100 and the PDG 400. Since it is preferred that a QoS between the WLAN UE 100 and the PDG 400 does not exceed the QoS provided from the WLAN bearer, the I-WLAN bearer service manager 120 refers to a QoS of the WLAN bearer B110 or the available resource of the WLAN bearer B110.
  • the I-WLAN bearer service manager 120 inquires to the admission and capability controller 130 whether the QoS to be negotiated with the PDG 400 is an adequate QoS or not.
  • the admission and capability controller 130 determines adequacy of the QoS inquired by the I-WLAN bearer service manager 120 with reference to the QoS of the WLAN bearer B110 or the available resource of the WLAN bearer B110.
  • the I-WLAN bearer service manager 120 When the admission and capability controller 130 accepts the inquired QoS, the I-WLAN bearer service manager 120 requests the QoS accepted by the admission and capability controller 130 to the I-WLAN bearer service manager 420. At this time, the I-WLAN bearer service manager 120 uses a service of the WLAN bearer B110 when negotiating the QoS with the I-WLAN bearer service manager 420. In more detail, the I-WLAN bearer service manager 120 negotiates with the I-WLAN bearer service manager 420 by using the services of the WLAN bearer B110, the Wn bearer B120, and the Wp bearer B140.
  • the I-WLAN bearer service manager 420 inquires to the admission and capability controller 430 whether the admission and capability controller 430 accepts the QoS requested by the I-WLAN bearer service manager 120.
  • the admission and capability controller 430 determines whether to accept the QoS requested by the bearer service manager 120 with reference to the available resource of the external bearer B160 or the QoS of the external bearer B160 and provides an internal primitive, including the determination of the admission and capability controller 430.
  • the admission and capability controller 430 refers to the resource allocated to the external bearer B160 or the QoS of the external bearer B160 because the QoS between the WLAN UE 100 and the PDG 400 depends on the QoS provided by the external bearer B160.
  • the admission and capability controller 430 rejects the requested QoS, the I-WLAN bearer service manager 120 and the I-WLAN bearer service manager 420 renegotiate the QoS.
  • the admission and capability controller 430 accepts the QoS, the I-WLAN bearer service manager 120 and the I-WLAN bearer service manager 420 establish an I-WLAN bearer B150.
  • the I-WLAN bearer service manager 120 and the I-WLAN bearer service manager 420 convert attributes of the I-WLAN bearer B150 and maintain the I-WLAN bearer B150.
  • the I-WLAN bearer service manager 120 provides information on a QoS of the I-WLAN bearer B150 or information on a resource allocated to the I-WLAN bearer B150 to the admission and capability controller 130.
  • the I-WLAN bearer service manager 420 provides the information on the QoS of the I-WLAN bearer B 150 and the information on the resource allocated to the I-WLAN bearer B150 to the admission and capability controller 430.
  • the IP bearer service manager 150 of the WLAN UE 100 negotiates a QoS with the PDG 400 for packet exchange between the IP bearer service manager 150 and the end terminal 500 of the external 3GPP packet-switched service network 3.
  • the IP bearer service manager 150 and the IP bearer service manager 450 establish, manage, and maintain an IP bearer B170.
  • the IP bearer B170 is used for packet exchange (i.e., end-to-end packet switch) between the WLAN UE 100 and the end terminal 500.
  • the WLAN UE 100 establishes a plurality of IP bearers B170 respectively corresponding to a plurality of end terminals 500 for packet exchange.
  • the WLAN UE 100 establishes the plurality of IP bearers B 170 by negotiating a QoS with the PDG 400.
  • FIG. 3 is a flowchart of a method for a WLAN UE to establish the IP bearer B170.
  • the IP bearer service manager 150 inquires to the admission and capability controller 130 whether the admission and capability controller 130 accepts a QoS requested for establishing the IP bearer B170 in step S110. For this purpose, the IP bearer service manager 150 provides a primitive that includes a result of the requested QoS acceptance to the converter 140.
  • the converter 140 converts the primitive into a primitive to be transmitted to the admission and capability controller 130, and provides the converted primitive to the I-WLAN bearer service manager 120.
  • the I-WLAN bearer service manager 120 perceives that the received primitive is a primitive to be transmitted to the admission and capability controller 130, and transmits the primitive to the admission and capability controller 130.
  • the admission and capability controller 130 manages a resource allocated to the I-WLAN bearer B150.
  • the admission and capability controller 130 determines whether to accept the QoS requested by the IP bearer service manager 150 in accordance with an available resource of the I-WLAN bearer B150, in step S120. That is, when enough available resources of the I-WLAN bearer B150 exist such that the requested QoS can be supported, the admission and capability controller 130 accepts the QoS requested by the IP bearer service manager 150.
  • the IP bearer service manager 150 requests the QoS accepted by the admission and capability controller 130 to the PDG 400, in step S130.
  • the IP bearer service manager 150 provides the converter 140 with a primitive that includes a request for the QoS to the PDG 400 for establishing the IP bearer B170.
  • the converter 140 acknowledges that the primitive needs to be transmitted to the PDG 400, converts the primitive into a message to be transmitted to the PDG 400, and provides the message to the I-WLAN bearer service manager 120.
  • the I-WLAN bearer service manager 120 forwards the message to the I-WLAN bearer service manager 420 through the I-WLAN bearer B150.
  • the I-WLAN bearer service manager 420 provides the forwarded message to the converter 440.
  • the converter 440 converts the message into a primitive in a format that can be read by the IP bearer service manager 450, and provides the conversion result to the IP bearer service manager 450.
  • the admission and capability controller 130 rejects the QoS requested by the IP bearer service manager 150
  • the IP bearer service manager 150 requests a new QoS to the admission and capability controller 130.
  • the IP bearer service manager 450 inquires to the admission and capability controller 430 about whether the admission and capability controller 430 accepts the requested QoS.
  • the admission and capability controller 430 manages information on a resource allocated to the external bearer B160.
  • the admission and capability controller 430 determines whether to accept the QoS request of the IP bearer service manager 150 in accordance with an available resource of the external bearer B160 in step S140.
  • the admission and capability controller 430 may determine whether to accept the QoS request of the IP bearer service manager 150 with reference to the available resource of the external bearer B160 and the available resource of the I-WLAN bearer B150.
  • the admission and capability controller 430 provides the converter 440 with a primitive including a result of the determination on the requested QoS through the I-WLAN bearer service manager 420.
  • the converter 440 converts the
  • the admission and capability controller 430 accepts the QoS request of the IP bearer service manager 150, the IP bearer service manager
  • the IP bearer service manager 450 establish, manage, and maintain an IP bearer B170 that supports the QoS accepted by the admission and capability controller 430 in step S150.
  • the admission and capability controller 430 rejects the QoS request of the IP bearer service manager 150
  • the IP bearer service manager 150 requests a new QoS to the admission and capability controller 430.
  • the IP bearer B170 uses services of the I-WLAN bearer B150 and the external bearer B160.
  • the I-WLAN bearer B150 uses a service of the WLAN bearer B110, a service of the Wn bearer B120, and a service of the Wp bearer B140.
  • a QoS negotiation method of the PDG 400 according to an exemplary embodiment of the present invention will be described with reference to FIG. 4.
  • FIG. 4 is a flowchart of a QoS negotiation method of a packet data gateway according to the exemplary embodiment of the present invention.
  • the external bearer service manager 460 of the PDG 400 establishes an external bearer for packet exchange with an end terminal in step S210.
  • the WLAN UE 100 requests a QoS for establishing the I-WLAN bearer B150 from the I-WLAN bearer service manager 420, and the I-WLAN bearer service manager 420 receives the QoS requests from the WLAN UE 100 in step S220.
  • the admission and capability controller 430 determines whether the requested QoS is adequate for a QoS of the external bearer in step S230, and accepts the request when a result of the determination shows that it is adequate in step S240.
  • the WLAN UE 100 and the PDG 400 renegotiate a QoS for establishing the I-WLAN bearer B150.
  • the I-WLAN bearer service manager 420 When the admission and capability controller 430 accepts the requested QoS of the WLAN UE 100, the I-WLAN bearer service manager 420 establishes the I-WLAN bearer in step S250. Subsequently, the I-WLAN bearer service manager 420 receives the
  • the admission and capability controller 430 determines whether the QoS requested by the WLAN UE 100 for establishing the IP bearer B170 is adequate for the available resource of the external bearer B160 in step S270 and accepts the QoS requested by the WLAN UE 100 when it is adequate in step S280. At this time, the admission and capability controller 430 further determines whether the QoS requested by the WLAN UE 100 is adequate for the available resource of the I-WLAN bearer B150 and accepts the QoS request of the WLAN UE 100 when it is adequate. When the QoS requested by the WLAN UE 100 is inadequate for the available resource of the external bearer B160, the WLAN UE 100 and the PDG 400 renegotiate a QoS for establishing the IP bearer B170.
  • the IP bearer service manager 450 establishes the IP bearer B170 in step S290.
  • a method for the WLAN UE 100 to negotiate a QoS according to an exemplary embodiment of the present invention will be described with reference to FIG. 5.
  • FIG. 5 is a flowchart showing a method of the WLAN UE to negotiate a QoS according to an exemplary embodiment of the present invention, which will now be described.
  • the WLAN bearer service manager 110 of the WLAN UE 100 requests a QoS for establishing the WLAN bearer B110 from the WLAN AP 200 in step S310.
  • the WLAN bearer service manager 110 establishes the WLAN bearer B110 for supporting the QoS in step S320.
  • the I-WLAN bearer service manager 120 requests a QoS for establishing the I-WLAN bearer B150 from the PDG 400 by using a service of the WLAN bearer B110 in step S330.
  • the I-WLAN bearer service manager 120 determines a QoS for establishing the I-WLAN bearer B150 in accordance with an available resource of the WLAN bearer B110 and then requests the determined QoS from the PDG 400.
  • the I-WLAN bearer service manager 120 establishes an I-WLAN bearer for supporting the QoS in step S340.
  • the IP bearer service manager 150 requests a QoS for establishing the IP bearer B170 from the PDG 400 by using a service of the I-WLAN bearer B150 in step S350. At this time, the IP bearer service manager 150 determines a QoS for establishing the IP bearer B 170 in accordance with an available resource of the I-WLAN bearer B150 and then requests the determined QoS from the PDG 400.
  • the IP bearer service manager 150 establishes the IP bearer B170 for supporting the QoS in step S360.
  • a QoS management function for establishing a WLAN direct IP connection will be described with reference to FIG. 6.
  • FIG. 6 shows the QoS management function for establishing the WLAN direct IP connection according to the exemplary embodiment of the present invention.
  • the WLAN UE 100 further includes an admission and capability controller 160, a converter 170, and an IP bearer service manager 180.
  • the WLAN access point 200 further includes an external bearer service manager 250, a converter 260, and an IP bearer service manager 270.
  • the admission and capability controller 160 communicates with the
  • WLAN bearer service manager 110 by using an internal service primitive.
  • the converter 170 communicates with the WLAN bearer service manager 110 and the IP bearer service manager 180 by using an internal service primitive.
  • the access network manager 220 communicates with the external bearer service manager 250 and the converter 260 by using an internal service primitive.
  • the converter 260 communicates with the IP bearer
  • the WLAN bearer service manager 110 and the WLAN bearer service manager 210 negotiate a QoS and establish a WLAN bearer B110 for supporting the negotiated QoS in the same way as previously described.
  • the admission and capability controller 230 respectively manage resources allocated to the WLAN bearer B110.
  • the converter 170 and the converter 260 convert a message that corresponds to an internal service primitive and an external service signaling.
  • the external bearer service manager 250 of the WLAN AP 200 establishes, manages, and maintains an external bearer B180 used for packet exchange between the WLAN AP 200 and the end terminal 700 of the Internet.
  • the admission and capability controller 230 manages a resource allocated to the external bearer B180.
  • a method for establishing an IP bearer B190 used for packet exchange between the WLAN UE 100 and the end terminal 700 will now be described.
  • the IP bearer service manager 180 inquires to the admission and capability controller 160 about adequacy of a QoS for establishing the IP bearer B190.
  • the admission and capability controller 160 determines whether the QoS requested by the IP bearer service manager 180 is adequate in accordance with an available resource of the WLAN bearer B110.
  • admission and capability controller 160 determines that the admission and capability controller 160
  • the IP bearer service manager 180 requests the determined QoS from the IP bearer service manager 270 of the WLAN AP 200. At this time, the IP bearer service manager 180 requests the QoS from the WLAN AP 200 by using a service of the WLAN bearer B110, and the request is converted into an internal service primitive by the converter and transmitted to the IP bearer service manager 270.
  • the IP bearer service manager 180 When receiving the QoS request from the IP bearer service manager
  • the IP bearer service manager 270 inquires to the admission and capability controller 230 whether the admission and capability controller 230 accepts the requested QoS.
  • the admission and capability controller 230 determines whether to accept the QoS in accordance with an available resource of the external bearer B180.
  • the admission and capability controller 230 determines the acceptance of the QoS with further reference to the available resource of the WLAN bearer B110.
  • the admission and capability controller 230 accepts the QoS for establishing the IP bearer B190
  • the IP bearer service manager 180 and the IP bearer service manager 270 establish, manage, and maintain an IP bearer B190 for supporting the QoS.
  • the above-described exemplary embodiment of the present invention may be realized by an apparatus and a method, but it may also be realized by a program that realizes functions corresponding to configurations of the exemplary embodiment or a recording medium that records the program.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne une passerelle et un terminal négociant une QoS dans un système raccordé en réseau. Le terminal négocie une QoS avec un point d'accès WLAN et établit un support d'accès WLAN. En outre, le terminal négocie une QoS avec la passerelle pour un échange de paquets par le support de service WLAN. La passerelle accepte une QoS selon une QoS d'un support externe et le terminal et la passerelle établissent un support I-WLAN. Par conséquent, le terminal négocie une QoS avec la passerelle pour échange de paquets avec un terminal final par le support I-WLAN. La passerelle accepte la QoS en fonction des ressources disponibles des supports I-WLAN externes et le terminal et la passerelle établissent un support IP.
PCT/KR2006/002415 2005-06-22 2006-06-22 Appareil et methode pour negocier la qualite de service WO2006137705A1 (fr)

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US11/922,847 US20090225705A1 (en) 2005-06-22 2006-06-22 Apparatus and Method for Negotiating Quality of Service
EP06768996A EP1894349A4 (fr) 2005-06-22 2006-06-22 Appareil et méthode pour négocier la qualité de service
CN200680022604XA CN101218783B (zh) 2005-06-22 2006-06-22 用于协商服务质量的装置和方法

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KR20050054168 2005-06-22
KR1020060050828A KR100788889B1 (ko) 2005-06-22 2006-06-07 서비스 품질을 협상하는 장치 및 방법
KR10-2006-0050828 2006-06-07

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CN101399815B (zh) * 2007-09-30 2014-12-24 华为技术有限公司 一种业务协商方法及网关以及相关设备
CN101925136B (zh) * 2007-10-11 2012-09-05 华为技术有限公司 承载建立方法及相关装置
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CN103796250B (zh) * 2012-10-31 2018-06-12 中兴通讯股份有限公司 确定回传网络中wlan业务qos的方法和系统
CN103796250A (zh) * 2012-10-31 2014-05-14 中兴通讯股份有限公司 确定回传网络中wlan业务qos的方法和系统
US9819469B2 (en) 2013-07-01 2017-11-14 Qualcomm Incorporated Techniques for enabling quality of service (QoS) on WLAN for traffic related to a bearer on cellular networks
WO2015002767A1 (fr) * 2013-07-01 2015-01-08 Qualcomm Incorporated Techniques pour permettre une qualité de service (qos) sur un wlan pour le trafic lié à un support sur des réseaux cellulaires
US10581581B2 (en) 2013-07-01 2020-03-03 Qualcomm Incorporated Techniques for enabling quality of service (QoS) on WLAN for traffic related to a bearer on cellular networks
WO2015028924A3 (fr) * 2013-08-29 2015-08-27 Telefonaktiebolaget L M Ericsson (Publ) Prise en charge de modèle qos basé sur une porteuse 3gpp, sur un réseau wifi
US9578647B2 (en) 2013-08-29 2017-02-21 Telefonaktiebolaget Lm Ericsson (Publ) 3GPP bearer-based QoS model support on WiFi

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EP1894349A4 (fr) 2011-12-28

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