WO2009103233A1 - 一种切换过程中辅助数据通道注册的方法及装置 - Google Patents

一种切换过程中辅助数据通道注册的方法及装置 Download PDF

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Publication number
WO2009103233A1
WO2009103233A1 PCT/CN2009/070451 CN2009070451W WO2009103233A1 WO 2009103233 A1 WO2009103233 A1 WO 2009103233A1 CN 2009070451 W CN2009070451 W CN 2009070451W WO 2009103233 A1 WO2009103233 A1 WO 2009103233A1
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Prior art keywords
network gateway
data channel
service network
target
access service
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PCT/CN2009/070451
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English (en)
French (fr)
Inventor
谢勇
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华为技术有限公司
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Priority claimed from CN2008100991973A external-priority patent/CN101516114B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2009103233A1 publication Critical patent/WO2009103233A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/26Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for registering an auxiliary data channel in a handover process. Background technique
  • WiMAX Worldwide Interoperability for Microwave Access
  • the air interface standards introduced by the IEEE 802.16 working group include 802.16, 802.16a, 802.16d, and 802.16e.
  • the current wireless side of the WiMAX network is mainly based on the IEEE 802.16d/802.16e standard; the 802.16d standard (IEEE 802.16-2004) was developed in July 2004, and the 802.16d standard is the integration and revision of the 802.16 and 802.16a standards, defining support.
  • MAC Media Access Control
  • FIG. 1 shows the WiMAX network architecture reference model, which mainly includes three parts: client, including mobile station/subscriber station (MS/SS), access service network (ASN), and connection service.
  • Connectivity Service Network may include a base station (Base Station, BS) and an Access Service Network GateWay (ASN GW); the CSN may include a Prepaid Server (PPS), an authentication, authorization, and accounting server (Authentication). , Authorization and Accounting Server, AAA Server) and so on.
  • PPS Prepaid Server
  • AAA Server Authorization and Accounting Server
  • ASP Application Service Provider
  • NSP Network Service Provider
  • NAP Network Access Provider
  • Business forming multiple intersections.
  • Each operator uses an open interface (open and air interfaces between operators, which can include Rl, R3, R4, R5, R6, R8, etc.) for service delivery and parameter negotiation, reaching the network to a certain extent.
  • Rl open and air interfaces between operators, which can include Rl, R3, R4, R5, R6, R8, etc.
  • Step 201 MS sends a Serving BS (Serving Base Station)
  • Serving BS Serving Base Station
  • the BS that provides the access service to the MS is called the service BS of the MS.
  • Step 202 After receiving the MOB_MSHO_REQ message, the serving BS sends its target BS (Target)
  • the Base Station the target BS sends a handover request (HO_Request) message.
  • the HO_Request message is forwarded to the target BS through the forwarding of the Serving ASN GW and the Target ASN GW.
  • Step 203 The target BS initiates a data channel pre-registration process with the Anchor ASN GW where the Anchor DPF (anchor data channel functional entity) is located, and pre-registers with the data channel of the Anchor DPF.
  • the registration process will be processed by the Target ASN GW.
  • step 203 The content of step 203 is optional, that is, the pre-registration phase of the handover may not be pre-registered with the data channel, but is registered at the subsequent handover execution phase.
  • Step 204 The target BS returns a handover response (HO_Response) message to the Serving BS, and responds to the handover request (HO_Request).
  • the HO_Response message is forwarded by the Target ASN GW and the Serving ASN GW, and then sent to the serving BS.
  • Step 205 After receiving the HO_Response message, the serving BS returns a handover response message MOB_BSHO-RSSP to the MS, and is used to instruct the terminal to perform handover.
  • Step 206 The MS replies to the handover indication MOB_HO_IND message to the serving BS, instructing the serving BS to prepare to switch to the target BS.
  • Step 207 After receiving the message, the serving BS notifies the target BS by using a HO_Delay message.
  • the HO—Conscription is sent to the target BS through the forwarding of the Serving ASN GW and the Target ASN GW.
  • Step 208 The MS accesses the network from the target BS.
  • Step 209 The target BS initiates a data channel registration process with the Anchor ASN GW where the Anchor DPF is located, and registers with the data channel of the Anchor DPF.
  • the registration process will be processed by the Target ASN GW. If the data channel pre-registration process with the Anchor DPF is performed in step 202, only the registration of the data channel is confirmed here, and the substantial re-registration process is not performed.
  • the handover message (HO_REQ, HO RSP, HO Confirm) can be directly transmitted between the BSs through the R8 interface without passing through the Serving ASN GW and Target ASN GW forwarding, while other processes are similar.
  • the target BS does not carry the QoS (Quality of Service) parameter information of the mobile terminal service flow when initiating the pre-registration of the data channel to the target ASN GW, thereby causing at least The registration of the data channel cannot be completed in the two cases described below:
  • QoS Quality of Service
  • ASN profile C (ASN profile C is to configure the main functions of radio resource management and handover control in the BS, and paging control, location registration, and external proxy functions are configured in the ASN GW. A partially distributed solution is formed) If the switch occurs in the BS under two different ASN GWs, the ASN of the Profile C only functions as the HO Relay during the handover process. Therefore, the related information is not saved for the passed HO signaling message, and the target BS is located.
  • ASN GW ie The standard ASN GW ) has no service flow QoS parameter information of the mobile terminal to be switched, and there is no interaction of this information when the data channel is pre-registered, which results in the inability to register the data channel.
  • the target ASN GW When there is an R8 interface between the target BS and the serving BS, and the handover occurs in the BS under two different ASN GWs, since the handover signaling does not pass through the ASN GW, the target ASN GW does not have the QoS parameter information of the mobile terminal service flow. However, when there is no interaction of this information when the data channel is pre-registered, the data channel cannot be registered.
  • Embodiments of the present invention provide a method and an apparatus for registering an auxiliary data channel in a handover process, which can solve the problem that a mobile terminal cannot register a data channel during a handover process.
  • the embodiment of the invention discloses a method for assisting data channel registration.
  • the method includes: in a process of the mobile terminal switching from the service access service network gateway to the target access service network gateway, the target access service network gateway acquiring QoS parameter information of the corresponding service flow of the mobile terminal, the QoS parameter The information is used to assist the target access service network gateway to register a data channel.
  • Another embodiment of the present invention discloses a method for assisting data channel registration.
  • the method includes: in a process of handover of a mobile terminal from a service access service network gateway to a target access service network gateway, the target base station sends QoS parameter information to the target access service network gateway, where the QoS parameter information is used in the auxiliary The target access service network gateway registration data channel.
  • An embodiment of the present invention further discloses a target access service network gateway, where the target access service network gateway is used to assist data in a process in which a mobile terminal is switched from a service access service network gateway to the target access service network gateway.
  • the target access service network gateway includes: a receiving module, configured to receive a message carrying the QoS parameter information of the mobile terminal service flow, and an acquiring module, configured to obtain, by using the message that is received by the receiving module and carrying the QoS parameter information of the mobile terminal service flow The QoS parameter information of the mobile terminal service flow, where the QoS parameter information is used to assist the target access service network gateway to register a data channel.
  • the embodiment of the present invention further discloses an apparatus for registering an auxiliary data channel in a handover process, where the apparatus is used for registering an auxiliary data channel in a process of switching a mobile terminal from a service access service network gateway to a target access service network gateway.
  • the device includes:
  • a message generating module configured to generate a message carrying QoS parameter information of the mobile terminal service flow
  • a sending module configured to send, to the target access service network gateway, a message generated by the message generating module.
  • the embodiment disclosed in the embodiment of the present invention can enable the target ASN GW to obtain QoS parameter information of the mobile terminal service flow, and the parameter can be used to register the auxiliary data channel during the handover process.
  • FIG. 3 is a flowchart of a method according to Embodiment 1 of the present invention.
  • FIG. 6 is a flowchart of a method according to Embodiment 4 of the present invention.
  • FIG. 7 is a structural diagram of a target access service network gateway according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of an apparatus for assisting data channel registration in an embodiment of the present invention. Specific embodiment
  • the target access service network gateway acquires the QoS parameter information of the mobile terminal service flow.
  • the QoS parameter information is used to assist the target access service network gateway to register a data channel. It should be stated that, as recognized by the industry, data channel establishment is a necessary process in the process of terminal handover. After the data channel registration is completed, the handover process can be completed.
  • the "switching process of the mobile terminal from the service access service network gateway to the target access service network gateway" is defined as a process including the mobile terminal accessing the network from the target BS and the target BS registering to the Anchor DPF.
  • the process of the data channel is defined as a process including the mobile terminal accessing the network from the target BS and the target BS registering to the Anchor DPF.
  • a method for registering an auxiliary data channel in an embodiment of the present invention is shown.
  • the MS is switched by the Serving ASN GW to the Target ASN GW, and the target BS is in the handover pre-
  • the data channel pre-registration is performed in the preparation phase, and the target BS carries the QoS parameter information in the DP Pre-Reg Req message sent by the target BS or is carried by the Anchor ASN GW in the DP Pre-Reg Rs message sent by the Anchor ASN GW.
  • QoS parameter information the target access service network gateway obtains QoS parameter information from the DP Pre-Reg Req or DP Pre-Reg Rs message, and the method includes:
  • Step 301 The MS sends a MOB_MSHO_REQ message to the serving BS.
  • the BS that provides the access service to the MS is called the serving BS (Serving BS) of the MS.
  • Step 302 After receiving the MOB_MSHO_REQ message, the serving BS sends a HO_Request message to its target BS.
  • the HO-Request message is sent to the target BS by the forwarding of the Serving ASN GW and the Target ASN GW.
  • the forwarding may also include performing certain processing on the HO-Request message, for example, converting the transmission format.
  • the HO-Request message carries the QoS parameter information of the MS.
  • Step 303 After receiving the HO_Request message, if the target BS pre-registers the data channel, the target BS sends a DP Pre-Reg Req message to its corresponding ASN GW (ie, Target ASN GW), and initiates a pre-registration process of the data channel.
  • the QoS parameter information of the mobile terminal service flow is carried in the DP Pre-Reg Req message, where the information is carried in the target BS in step 302. In the HO-Request message received. If the target BS can support the QoS parameter information, the target BS may also not carry the QoS parameter information in the DP Pre-Reg Req message.
  • Step 304 After receiving the DP Pre-Reg Req message, the Target ASN GW initiates a data channel pre-registration process with the Anchor ASN GW where the Anchor DPF is located, and pre-registers with the data channel of the Anchor DPF.
  • the step 304 is specifically: the Target ASN GW sends a DP Pre-Reg Req message to the Anchor ASN GW, and after receiving the message for pre-registration, the Anchor ASN GW replies to the Target ASN GW with a DP Pre-Reg Rs message. If the QoS parameter information is carried in the DP Pre-Reg Req message in step 303, the DP Pre-Reg Req message sent by the Target ASN GW to the Anchor ASN GW also carries the QoS parameter information.
  • the Anchor ASN GW recommends carrying QoS parameter information in the following cases:
  • the Anchor ASN GW does not accept the QoS parameter information carried in the DP Pre-Reg Req message sent by the Target ASN GW to the Anchor ASN GW (for example, when the handover of the terminal occurs in the BS under two different ASN GWs, the bearer of the service If there is a change, then the QoS capability that can be applied may also change. At this point, the Anchor GW may need to change the QoS parameter information of the terminal. Then it will re-authorize the parameters and in the DP Pre-Reg Rsp message. Carrying the QoS parameter information after authorization;
  • Target ASN GW does not carry the QoS parameter information in the DP Pre-Reg Req message of step 303, the Anchor ASN GW will carry the QoS parameter information authorized for the MS in the DP Pre-Reg Rs replied to the Target ASN GW. In the message;
  • the Target ASN GW After receiving the DP Pre-Reg Rs message, the Target ASN GW processes the QoS parameter information, including detecting and reserving resources.
  • Step 305 The Target ASN GW sends a DP Pre-Reg Rs message to the target BS.
  • the Anchor ASN GW does not carry the QoS parameter information authorized by it in the DP Pre-Reg Rsp message replied to the Target ASN GW, optionally, the DP Pre-Reg sent by the Target ASN GW to the target BS
  • the QoS parameter information can also be carried in the Rsp message.
  • Step 306 The target BS sends a DP Pre-Reg Ack message to the Target ASN GW.
  • the ASN GW After receiving the ASN GW, it sends a DP Pre-Reg Ack message to the Anchor ASN GW.
  • the QoS parameter information may be further carried in the DP Pre-Reg Ack message, indicating whether the target BS accepts the QoS parameter information authorized by the Anchor ASN GW and the QoS parameter information finally executed.
  • Step 307 The target BS returns a HO_Response message to the Serving BS, and responds to the handover request (HO_Request).
  • the HO_Response message is forwarded by the Target ASN GW and the Serving ASN GW, and then sent to the serving BS.
  • Step 308 After receiving the HO_Response message, the serving BS returns a handover response message MOB_BSHO-RSSP to the MS, and is used to instruct the terminal to perform handover.
  • Step 309 The MS returns a handover indication MOB_HO_IND message to the service BS, indicating the service
  • the BS is ready to switch to the target BS.
  • Step 310 After receiving the message, the serving BS notifies the target BS by using a HO_Delay message.
  • the HO_Conscription is forwarded to the target BS by the Serving ASN GW and the Target ASN GW.
  • Step 311 The MS officially enters the network from the target BS.
  • the handover message (HO_Request, HO_Response, HO_Confirm) can be directly transmitted between the BSs through the R8 interface instead of It needs to be forwarded by Serving ASN GW and Target ASN GW, and other processes are similar.
  • a method for registering an auxiliary data channel in an embodiment of the present invention is shown.
  • the target BS is in the handover execution stage.
  • the segment performs data channel registration, and the target BS carries the QoS parameter information in the data channel registration request (DP Reg Req) message sent by the target BS or carries the QoS parameter information in the DP Reg Rs message sent by the Anchor ASN GW, and the target access
  • the service network gateway obtains Qo S parameter information from the DP Reg Req or DP Reg Rs message, and the method includes:
  • Step 401 The MS sends a MOB_MSHO_REQ message to the serving BS.
  • the BS that provides the access service to the MS is called the serving BS (Serving BS) of the MS.
  • Step 402 After receiving the MOB_MSHO_REQ message, the serving BS sends a HO_Request message to its target BS.
  • the HO_Request message is sent to the target BS after being forwarded by the Serving ASN GW and the Target ASN GW.
  • Step 403 The target BS returns a HO_Response message to the Serving BS, and responds to the handover request (HO_Request).
  • the HO_Response message is sent to the serving BS after being forwarded by the Target ASN GW and the Serving ASN GW.
  • Step 404 After receiving the HO_Response message, the serving BS returns a handover response message MOB_BSHO-RSSP to the MS, and is used to instruct the terminal to perform handover.
  • Step 405 The MS returns a handover indication MOB_HO_IND message to the serving BS, indicating that the serving BS is ready to switch to the target BS.
  • Step 406 After receiving the message, the serving BS notifies the target BS by using a HO_Delay message.
  • the HO—Conscription is sent to the target BS through the forwarding of the Serving ASN GW and the Target ASN GW.
  • Step 407 The MS officially enters the network from the target BS.
  • Step 408 After the MS officially enters the network from the target BS, if there is no pre-registration data channel in the handover preparation phase, the target BS sends a DP Reg Req message to its corresponding ASN GW (ie, Target ASN GW), and initiates a registration process of the data channel.
  • the QoS parameter information of the mobile terminal service flow may be carried in the DP Reg Req message, and the QoS parameter information is carried by the serving BS in the HO-Request message in step 402 and sent to the target BS.
  • Step 409 After receiving the DP Reg Req message, the Target ASN GW initiates a data channel registration process with the Anchor ASN GW where the Anchor DPF is located, and registers with the data channel of the Anchor DPF.
  • step 409 is specifically: the Target ASN GW sends the Anchor ASN GW The DP Reg Req message, after receiving the message, the Anchor ASN GW replies to the Target ASN GW with a DP Reg Rs message. If the QoS parameter information is carried in the DP Reg Req message in step 408, the DP Reg Req message sent by the Target ASN GW to the Anchor ASN GW also carries the QoS parameter information.
  • the Anchor ASN GW recommends carrying QoS parameter information in the following cases:
  • the Anchor ASN GW does not accept the QoS parameter information carried in the DP Reg Req message sent by the Target ASN GW to the Anchor ASN GW (for example, when the handover of the terminal occurs in the BS under two different ASN GWs, the bearer of the service occurs. Change, then the QoS capability that can be applied may also change, which may cause the Anchor GW to change the QoS parameter information of the terminal), then it will re-authorize the parameters and carry the authorization in the DP Reg Rsp message. Post QoS parameter information;
  • Target ASN GW does not carry the QoS parameter information in the DP Reg Req message of step 408, the Anchor ASN GW will carry the authorized QoS information for the MS in the DP Reg Rs message replied to the Target ASN GW;
  • the Target ASN GW After receiving the DP Reg Rs message, the Target ASN GW processes the QoS parameter information, including detecting and reserving resources.
  • Step 410 The Target ASN GW sends a DP Reg Rs message to the target BS.
  • step 409 when the Anchor ASN GW carries the QoS parameter information authorized by the DP ARP GW in the reply to the Target ASN GW, the DP Pre-Reg Rs message sent by the Target ASN GW to the target BS is also Carrying the QoS parameter information after the Anchor ASN GW is authorized;
  • the Anchor ASN GW does not carry the QoS parameter information authorized by the DP ARP GW in the reply to the Target ASN GW
  • the DP Reg Rs message sent by the Target ASN GW to the target BS is also It can carry QoS parameter information.
  • Step 411 The target BS sends a DP Reg Ack message to the Target ASN GW.
  • Target ASN GW After receiving the Target ASN GW, it sends a DP Reg Ack message to the Anchor ASN GW.
  • the QoS parameter information may be further carried in the DP Reg Ack message to indicate whether the target BS accepts the QoS parameter information authorized by the Anchor ASN GW and the QoS parameter information finally executed.
  • the handover message (HO_Request, HO_Response, HO_Confirm) may be in the BS. It is directly transmitted through the R8 interface without forwarding through the Serving ASN GW and the Target ASN GW, and other processes are similar.
  • a method for registering an auxiliary data channel in an embodiment of the present invention is provided.
  • the Target ASN GW actively saves the mobile to the relevant information without the QoS parameter information of the mobile terminal service flow.
  • the device or functional entity requesting the QoS parameter information of the terminal service flow is obtained.
  • the following is an example of a request to the target BS, which includes:
  • Step 501 The MS sends a MOB_MSHO_REQ message to the serving BS.
  • the BS that provides the access service to the MS is called the serving BS (Serving BS) of the MS.
  • Step 502 After receiving the MOB_MSHO_REQ message, the serving BS sends a HO_Request message to its target BS.
  • the HO_Request message is forwarded to the target BS by the Serving ASN GW and the Target ASN GW.
  • Step 503 After receiving the HO_Request message, the target BS sends a DP Pre-Reg Req message to its corresponding ASN GW (ie, Target ASN GW) to pre-register the data channel, and initiates a pre-registration process of the data channel. .
  • ASN GW ie, Target ASN GW
  • Step 504 After the Target ASN GW receives the DP Pre-Reg Req message, if the Target ASN GW finds that it does not have the QoS parameter information of the mobile terminal service flow, the Target ASN GW sends a request message (QoS Request) to the BS, and the request message is used. Requesting QoS parameter information of the mobile terminal service flow.
  • the request message may be a newly defined request message, or may be implemented by using an existing message to be extended.
  • Step 505 After receiving the request message, the target BS sends a response message (QoS Response) of the request message to the Target ASN GW, where the response message carries the QoS parameter information of the mobile terminal service flow.
  • QoS Response a response message of the request message
  • the response message may be a newly defined request message, or may be implemented by using an existing message to be extended.
  • Step 506 After receiving the response message, the Target ASN GW obtains the QoS parameter information of the mobile terminal service flow from the response message, and goes to the Anchor ASN GW where the Anchor DPF is located.
  • the data channel is pre-registered and pre-registered with the data channel of the Anchor DPF.
  • the Target ASN GW may return an acknowledgement message to the target BS for confirming receipt of the response message carrying the QoS parameter information of the mobile terminal service flow.
  • Step 507 The Target ASN GW sends a DP Pre-Reg Rs message to the target BS.
  • the QoS parameter information may also be carried in the DP Pre-Reg Rsp message, where the QoS parameter information may be the QoS parameter information negotiated after the data channel is successfully registered.
  • Step 508 The target BS sends a DP Pre-Reg Ack message to the Target ASN GW.
  • the HO_Response message is sent to the serving BS after being forwarded by the Target ASN GW and the Serving ASN GW.
  • Step 510 After receiving the HO_Response message, the serving BS returns a handover response message MOB_BSHO-RSP to the MS, and is used to instruct the terminal to perform handover.
  • Step 511 The MS returns a handover indication MOB_HO_IND message to the service BS, indicating the service
  • the BS is ready to switch to the target BS.
  • Step 512 After receiving the message, the monthly service B S notifies the target B S by using the HO—Confirm message.
  • the HO—Conscription is sent to the target BS through the forwarding of the Serving ASN GW and the Target ASN GW.
  • Step 513 The MS officially enters the network from the target BS.
  • the handover message (HO_Request, HO_Response, HO_Confirm) can be directly transmitted between the BSs through the R8 interface instead of It needs to be forwarded by Serving ASN GW and Target ASN GW, and other processes are similar.
  • the target ASN GW may also provide the ASN GW (or Anchor ASN GW ) or Anchor in which the Serving ASN GW or the Serving SFA (Service Flow Authorization) serving the mobile terminal is located.
  • the ASN GW where the SFA is located actively requests to obtain the QoS parameter information of the mobile terminal service flow.
  • other devices or functional entities in the network may also have the QoS parameter information of the mobile terminal service flow, and may also request the device or the functional entity to obtain the QoS parameter information.
  • a method for registering an auxiliary data channel in an embodiment of the present invention is provided.
  • the target ASN GW actively saves the relevant information without the QoS parameter information of the mobile terminal service flow.
  • a device or functional entity having QoS parameter information of a mobile terminal service flow requests acquisition. The following is an example of a request to the target B S, which includes:
  • Step 601 The MS sends a MOB_MSHO_REQ message to the serving BS.
  • the BS that provides the access service to the MS is called the serving BS (Serving BS) of the MS.
  • Step 602 After receiving the MOB_MSHO_REQ message, the serving BS sends the message to its target BS.
  • the HO_Request message is sent to the target BS after being forwarded by the Serving ASN GW and the Target ASN GW.
  • Step 603 The target BS returns a HO_Response message to the Serving BS, and responds to the handover request (HO_Request).
  • the HO_Response message is sent to the serving BS after being forwarded by the Target ASN GW and the Serving ASN GW.
  • Step 604 After receiving the HO_Response message, the serving BS returns a handover response message MOB_BSHO-RSP to the MS, and is used to instruct the terminal to perform handover.
  • Step 605 The MS returns a handover indication MOB_HO_IND message to the service BS, indicating the service.
  • the BS is ready to switch to the target BS.
  • Step 606 After receiving the message, the serving BS notifies the target BS by using a HO_Delay message.
  • the HO—Conscription is sent to the target BS through the forwarding of the Serving ASN GW and the Target ASN GW.
  • Step 607 The MS officially enters the network from the target BS.
  • Step 608 After the MS officially enters the network from the target BS, if there is no pre-registration data channel in the handover preparation phase, the target BS sends a DP Reg Req message to its corresponding ASN GW (ie, Target ASN GW), and initiates a registration process of the data channel. .
  • ASN GW ie, Target ASN GW
  • Step 609 After the Target ASN GW receives the DP Pre-Reg Req message, if the Target ASN GW finds that it does not have the QoS parameter information of the mobile terminal service flow, the Target ASN GW sends a request message (Qo S Request) to the target BS.
  • Request message is used to request the mobile terminal industry QoS parameter information of the service flow.
  • the request message may be a newly defined request message, or may be implemented by using an existing message to be extended.
  • Step 610 After receiving the request message, the target BS sends a response message (QoS Response) of the request message to the Target ASN GW, where the response message carries QoS parameter information of the mobile terminal service flow.
  • QoS Response a response message of the request message
  • the response message may be a newly defined request message, or may be implemented by using an existing message to be extended.
  • Step 611 After receiving the response message, the Target ASN GW obtains the QoS parameter information of the mobile terminal service flow from the response message, registers with the data channel of the Anchor ASN GW where the Anchor DPF is located, and registers with the data channel of the Anchor DPF.
  • the Target ASN GW may return an acknowledgement message to the target BS for confirming receipt of the response message carrying the QoS parameter information of the mobile terminal service flow.
  • Step 612 The Target ASN GW sends a DP Reg Rs message to the target BS.
  • the QoS parameter information may also be carried in the DP Reg Rsp message, where the QoS parameter information may be the QoS parameter information negotiated after the data channel is successfully registered.
  • Step 613 The target BS sends a DP Reg Ack message to the Target ASN GW.
  • the handover message (HO_Request, HO_Response, HO_Confirm) can be directly transmitted between the BSs through the R8 interface instead of It needs to be forwarded by Serving ASN GW and Target ASN GW, and other processes are similar.
  • the target ASN GW may also actively request acquisition from the ASN GW (or Anchor ASN GW) where the Serving ASN GW or the Serving SFA is served to the mobile terminal or the ASN GW where the Anchor SFA is located.
  • the mobile terminal service flow QoS parameter information.
  • other devices or functional entities in the network may also have the QoS parameter information of the mobile terminal service flow, and may also request the device or the functional entity to obtain the QoS parameter information. .
  • the main function is configured in the BS, while the paging control, location registration, and external proxy functions are configured on the ASN GW.
  • the Target ASN GW may parse at least the mobile terminal service flow from the handover request (HO_Request) when forwarding the handover request (HO_Request).
  • the QoS parameter information is saved locally. Because the Target ASN GW does not perform parsing and saving processing when forwarding the handover request in the prior art, the present embodiment can implement software or hardware modification on the Target ASN GW.
  • the Target ASN GW may obtain the QoS parameter information of the mobile terminal from the local. With the present embodiment, the data channel can be efficiently registered.
  • the local can be understood as implementing the modification of the target access service network gateway (Target ASN GW) through software or hardware, and can also be understood as adding a device or entity that stores information to the Target ASN GW. Used to save QoS parameter information.
  • Target ASN GW target access service network gateway
  • an embodiment of the present invention discloses a target access service network gateway, where the access service network gateway is used to switch from a monthly service access service network gateway to a target access service network gateway in a mobile terminal.
  • Auxiliary data channel registration, target access service network gateway includes:
  • the receiving module 701 is configured to receive a message carrying the QoS parameter information of the service flow of the mobile terminal
  • the acquiring module 702 is configured to obtain the mobile terminal service flow from the message that is received by the receiving module 701 and carries the QoS parameter information of the mobile terminal service flow.
  • QoS parameter information, the QoS parameter information is used to assist the target access service network gateway to register the data channel.
  • the target access service network gateway may include:
  • the saving module 703 is configured to save the QoS parameter information of the mobile terminal service flow acquired by the obtaining module 702.
  • target access service network gateway may further include:
  • the sending module 704 is configured to send a response message of the data channel registration to the target BS after the QoS parameter information is used to assist the registration of the data channel, where the response message carries the QoS parameter information after the data channel registration negotiation.
  • an embodiment of the present invention discloses an apparatus for registering an auxiliary data channel in a handover process, where the apparatus is used for assisting a data channel in a handover process of a mobile terminal from a gateway of a service access network to a gateway of a target access service network.
  • Registration, devices include:
  • a message generating module 801 configured to generate a message carrying QoS parameter information of a mobile terminal service flow;
  • the sending module 802 is configured to send a message generated by the message generating module 801 to the target access service network gateway.
  • the device for registering the auxiliary data channel in the handover process may be the target BS, or the ASN where the Serving ASN GW or the Serving SFA serving the mobile terminal is located (or Anchor ASN GW) or the ASN where the Anchor SFA is located. GW.
  • the device for registering the auxiliary data channel in the handover process may also be the device or the functional entity.
  • the QoS parameter information is carried in the data channel pre-registration message or the registration message, or the QoS parameter information is actively sent by the Anchor GW, or the target ASN GW actively requests the QoS parameter.
  • Information, or the QoS parameter information and the like are parsed from the handover request message by the target ASN GW, and the target ASN GW can obtain QoS parameter information for registration of the auxiliary data channel during the handover procedure.

Description

一种切换过程中辅助数据通道注册的方法及装置 本申请要求于 2008 年 02 月 18 日提交中国专利局、 申请号为 200810066089.6、 发明名称为"获取锚定数据通道功能实体地址的方法及装 置,,的中国专利申请的优先权, 以及于 2008年 05月 14 日提交中国专利局、 说
申请号为 200810099197.3、 发明名称为"获取锚定数据通道功能实体地址的 方法及装置"的中国专利申请的优先权, 其全部内容通过引用结合在本申请 中。 技术领域 书 本发明涉及无线通信技术领域,特别涉及一种切换过程中辅助数据通道注 册的方法及装置。 背景技术
WiMAX ( Worldwide Interoperability for Microwave Access, 波存取全球 互通)技术是以 IEEE 802.16 的系列宽频无线标准为基础提出的一种空中接口 标准。 IEEE 802.16 工作组相继推出的空中接口标准包括 802.16、 802.16a, 802.16d、 802.16e。 当前 WiMAX网络无线侧主要基于 IEEE 802.16d/802.16e标 准; 其中 802.16d标准 ( IEEE 802.16-2004 )在 2004年 7月制定, 802.16d标 准是对 802.16和 802.16a标准的整合和修订, 定义了支持多种业务类型的固定 宽带无线接入系统的媒体接入控制 (Media Access Control, MAC)层和相对应的 多个物理层框架; 802.16e标准在 802.16d标准的基础上增加了部分新功能, 以 支持用户的移动性。
图 1为 WiMAX网络架构参考模型, 主要包括三个部分: 客户端, 包括移 动终端 /注册终端( mobile station/ subscriber station, MS/SS )、接入业务网( Access Service Network , ASN )及连接业务网( Connectivity Service Network , CSN ) 。 其中, ASN可以包括基站( Base Station, BS )和接入业务网网关( Access Service Network GateWay, ASN GW ) ; CSN可以包括预付费服务器(Prepaid Server, PPS ) 、 认证、 授权和计费服务器 (Authentication, Authorization and Accounting Server, AAA Server )等還辑实体。
应用服务提供商 (Application Service Provider, ASP)可以通过多个网络服 务提供商 (Network Service Provider, NSP)提供应用服务, 而网络接入提供商 (Network Access Provider, NAP)也可以通过多个 NSP获得业务,形成多个交叉。 各运营商之间釆用开放的接口 (运营商之间的开放接口和空中接口, 可以包括 Rl、 R3、 R4、 R5、 R6、 R8 等)进行业务传递和参数协商, 在一定程度上达到 网络资源的合理使用, 使得用户对业务有一定的选择权, 因此对业务质量也提 出了更高要求。
参考图 2,为现有技术中一种切换过程的主要消息流程图,具体包括步骤: 步骤 201 : MS 向 Serving BS ( Serving Base Station , 服务 BS )发送
MOB MSHO REQ消息。
其中, 给 MS提供接入服务的 BS称为该 MS的服务 BS。
步骤 202:服务 BS接收 MOB— MSHO— REQ消息后,向其 Target BS (Target
Base Station, 目标 BS)发送切换请求 ( HO_Request ) 消息。
其中, HO— Request消息经过 Serving ASN GW、 Target ASN GW的转发发 送到目标 BS上。
步骤 203: 目标 BS 发起与 Anchor DPF (锚定数据通道功能实体 )所在的 Anchor ASN GW的数据通道预注册过程, 预注册到 Anchor DPF的数据通道。 注册过程将经过 Target ASN GW处理。
其中, 步骤 203的内容是可选, 也就是切换预准备阶段可以不进行数据通 道的预注册, 而在后续的切换执行阶段注册。
步骤 204: 目标 BS向 Serving BS回复切换响应 ( HO_Response ) 消息, 响应切换请求 (HO_Request)。 其中 , HO— Response消息经过 Target ASN GW和 Serving ASN GW的转发 后, 发送到服务 BS上。
步骤 205: 服务 BS收到 HO— Response消息后, 向 MS回复切换响应消息 MOB— BSHO— RSP, 用于指示终端进行切换。
步骤 206: MS回复切换指示 MOB— HO— IND消息给服务 BS, 指示服务 BS其准备切换到目标 BS。
步骤 207: 服务 BS收到消息后, 通过 HO— Confirm消息通知目标 BS。 其中, HO— Confirm经过 Serving ASN GW和 Target ASN GW的转发发送 到目标 BS上。
步骤 208: MS从目标 BS入网。
步骤 209: 目标 BS 发起与 Anchor DPF所在的 Anchor ASN GW的数据通 道注册过程,注册到 Anchor DPF的数据通道。注册过程将经过 Target ASN GW 处理。 如果步骤 202中进行与 Anchor DPF间的数据通道预注册过程, 这里只 是确认数据通道的注册, 并不做实质的重新注册过程。
在上述的现有技术中, 当服务 BS与目标 BS间有 R8接口的时候,切换消 息(HO_REQ, HO RSP, HO Confirm )可以在 BS间通过 R8接口直接传递, 而不需要经过 Serving ASN GW和 Target ASN GW的转发, 而其他过程类似。
发明人发现, 在现有技术的切换过程中, 目标 BS向目标 ASN GW发起 数据通道的预注册时没有携带移动终端业务流的 QoS ( Quality of Service, 月良 务质量)参数信息, 从而导致至少在下面所述的两种情况下无法完成数据通道 的注册:
ASN profile C情况下 ( ASN profile C是将无线资源管理和切换控制的主 要功能配置于 BS, 而寻呼控制、 位置登记、 外部代理功能则配置于 ASN GW。 形成了部分分布式的方案) , 如果切换发生在两个不同 ASN GW下的 BS时, 由于 Profile C的 ASN GW在切换过程中只充当 HO Relay的功能, 因此对于经 过的 HO信令消息, 并不保存相关信息, 于是目标 BS所在的 ASN GW (即目 标 ASN GW )就没有即将切换过来的移动终端的业务流 QoS参数信息, 而在 数据通道预注册的时候也没有这个信息的交互, 那么就导致无法注册数据通 道。
对于目标 BS和服务 BS间有 R8接口, 且切换发生在两个不同 ASN GW 下的 BS时, 由于切换信令不经过 ASN GW,那么目标 ASN GW也不会拥有移 动终端业务流的 QoS参数信息,而在数据通道预注册的时候也没有这个信息的 交互, 那么就无法注册数据通道。
进一步的,发明人发现如果在切换预准备阶段, 不进行数据通道的预注册 过程, 而在执行阶段进行数据通道的注册, 也存在目标 BS向目标 ASN GW发 起数据通道的注册时不携带移动终端业务流的 QoS参数信息的问题,在上述两 种情况下也无法注册数据通道。 发明内容 本发明实施例提供一种切换过程中辅助数据通道注册的方法及装置, 可以 解决移动终端在切换过程中无法注册数据通道的问题。
本发明实施例公开了一种辅助数据通道注册的方法。 该方法包括: 在移动终端由服务接入业务网网关向目标接入业务网网关切换过程中, 所 述目标接入业务网网关获取所述移动终端相应业务流的 QoS 参数信息, 所述 QoS参数信息用于辅助所述目标接入业务网网关注册数据通道。
本发明实施例公开了另一种辅助数据通道注册的方法。 该方法包括: 在移 动终端由服务接入业务网网关向目标接入业务网网关切换过程中, 目标基站向 所述目标接入业务网网关发送 QoS参数信息, 所述 QoS参数信息用于辅助所 述目标接入业务网网关注册数据通道。
本发明实施例还公开了一种目标接入业务网网关, 所述目标接入业务网网 关用于在移动终端由服务接入业务网网关向所述目标接入业务网网关切换过 程中辅助数据通道注册, 所述目标接入业务网网关包括: 接收模块, 用于接收携带所述移动终端业务流的 QoS参数信息的消息; 获取模块, 用于从所述接收模块中接收到的携带有所述移动终端业务流的 QoS参数信息的消息中获取所述移动终端业务流的 QoS参数信息, 所述 QoS 参数信息用于辅助所述目标接入业务网网关注册数据通道。
本发明实施例还公开了一种切换过程中辅助数据通道注册的装置, 所述装 置用于在移动终端由服务接入业务网网关向目标接入业务网网关切换过程中 辅助数据通道注册, 所述装置包括:
消息生成模块,用于生成携带有所述移动终端业务流的 QoS参数信息的消 息;
发送模块, 用于向所述目标接入业务网网关发送所述消息生成模块生成的 消息。
与现有技术相比, 本发明实施例所公开的实施方式, 可以使目标 ASN GW 获得移动终端业务流的 QoS参数信息,所述参数可以用于在切换过程中辅助数 据通道的注册。 附图说明
图 1为现有技术中 WiMAX网络架构参考模型;
图 2为现有技术中切换过程的主要消息流程图;
图 3为本发明实施方式一的方法流程图;
图 4为本发明实施方式二的方法流程图;
图 5为本发明实施方式三的方法流程图;
图 6为本发明实施方式四的方法流程图;
图 7为本发明实施方式中的一种目标接入业务网网关的结构图;
图 8为本发明实施方式中的一种用于辅助数据通道注册的装置结构图。 具体实施例
下面结合附图及具体实施例, 对本发明实施方式进行进一步说明。 本发明实施例釆取的技术方案为: 在移动终端由服务接入业务网网关向目 标接入业务网网关切换过程中, 该目标接入业务网网关获取所述移动终端业务 流的 QoS参数信息, 该 QoS参数信息用于辅助所述目标接入业务网网关注册 数据通道。 需要声明的是, 如业界所承认的, 数据通道建立是终端切换过程中 必须的一个流程, 完成数据通道注册后, 切换过程才能算完成。 因此本发明所 有实施方式所述的 "移动终端由服务接入业务网网关向目标接入业务网网关切 换过程", 均定义为包括移动终端从目标 BS入网的过程以及目标 BS 注册到 Anchor DPF的数据通道的过程。 实施方式一
参考图 3 , 为本发明实施方式中一种辅助数据通道注册的方法。 在移动 终端( MS ) 由服务接入业务网网关( Serving ASN GW )向目标接入业务网 网关( Target ASN GW )切换过程中, MS由 Serving ASN GW向 Target ASN GW切换, 目标 BS在切换预准备阶段进行数据通道预注册, 由目标 BS在 其发送的数据通道预注册请求 (DP Pre— Reg Req ) 消息中携带 QoS参数信 息或者由 Anchor ASN GW在其发送的 DP Pre— Reg Rs 消息中携带 QoS参 数信息,目标接入业务网网关从所述 DP Pre— Reg Req或 DP Pre— Reg Rs 消息 中获取 QoS参数信息, 该方法包括:
步骤 301: MS向服务 BS发送 MOB— MSHO— REQ消息。
其中,给 MS提供接入服务的 BS称为该 MS的服务 BS ( Serving BS ) 。 步骤 302: 服务 BS接收 MOB— MSHO— REQ消息后, 向其目标 BS发送 HO— Request消息。
其中, HO— Request消息经过 Serving ASN GW、 Target ASN GW的转 发发送到目标 BS上; 所述的转发也可以是包括对 HO— Request消息进行一 定的处理, 例如可以对传输格式的转换等。 该 HO— Request消息中携带有所 述 MS的 QoS参数信息。
步骤 303 : 所述目标 BS收到 HO— Request消息后, 如果预注册数据通 道,目标 BS 向其对应的 ASN GW(即 Target ASN GW )发送 DP Pre— Reg Req 消息, 发起数据通道的预注册过程, 其中在 DP Pre— Reg Req消息中携带有 所述移动终端业务流的 QoS参数信息, 该信息携带在目标 BS在步骤 302 中收到的 HO— Request消息中。 如果目标 BS对该 QoS参数信息能够支持, 那么目标 BS也可以不在 DP Pre— Reg Req消息中携带 QoS参数信息。
步骤 304: Target ASN GW接收 DP Pre— Reg Req消息后,发起与 Anchor DPF所在的 Anchor ASN GW的数据通道预注册过程,预注册到 Anchor DPF 的数据通道。
进一步地, 步骤 304具体为: Target ASN GW向 Anchor ASN GW发送 DP Pre— Reg Req消息, Anchor ASN GW收到该消息进行预注册后, 向 Target ASN GW回复 DP Pre— Reg Rs 消息。 如果步骤 303中, DP Pre— Reg Req消息 中携带有 QoS参数信息, 则 Target ASN GW向 Anchor ASN GW发送的 DP Pre— Reg Req消息中也携带有 QoS参数信息。
Anchor ASN GW在回复给 Target ASN GW的 DP Pre— Reg Rs 消息中,在 以下几种情况下建议携带 QoS参数信息:
如果 Anchor ASN GW不接受 Target ASN GW发送给 Anchor ASN GW的 DP Pre— Reg Req消息中携带的 QoS参数信息 (例如: 当终端的切换发生在两 个不同 ASN GW下的 BS时, 其业务的承载发生了变化, 那么其所能应用的 QoS能力也可能发生变化, 此时可能导致 Anchor GW需要改变终端的 QoS参 数信息), 那么它将对参数进行重新授权, 并在 DP Pre— Reg Rsp消息中携带授 权后的 QoS参数信息;
如果 Target ASN GW在步骤 303的 DP Pre— Reg Req消息中没有携带 QoS 参数信息, 那么 Anchor ASN GW将把对此 MS的授权了的 QoS参数信息携带 在回复给 Target ASN GW的 DP Pre— Reg Rs 消息中;
Target ASN GW在收到 DP Pre— Reg Rs 消息后, 对 QoS参数信息进行处 理, 包括对资源进行检测和预留等操作。
步骤 305: Target ASN GW向目标 BS发送 DP Pre— Reg Rs 消息。
其中, 当在步骤 304中, Anchor ASN GW在回复给 Target ASN GW的 DP Pre— Reg Rs 消息中携带了由其授权的 QoS参数信息时, Target ASN GW向 目标 BS发送的 DP Pre— Reg Rs 消息中也携带该 Anchor ASN GW授权后的 Qos 参数信息;
当在步骤 304 中, Anchor ASN GW在回复给 Target ASN GW 的 DP Pre— Reg Rsp消息中没有携带由其授权的 QoS参数信息时,可选的, Target ASN GW向目标 BS发送的 DP Pre— Reg Rsp消息中也可以携带 QoS参数信息。
步骤 306: 目标 BS向 Target ASN GW发送 DP Pre— Reg Ack消息。 Target
ASN GW收到后, 向 Anchor ASN GW发送 DP Pre— Reg Ack消息。 DP Pre— Reg Ack消息中可以进一步携带 QoS参数信息, 表明目标 BS是否接受了 Anchor ASN GW授权的 QoS参数信息, 以及最终执行的 QoS参数信息。
步骤 307: 目标 BS向 Serving BS回复 HO— Response消息, 响应切换请求 (HO— Request)。
其中, HO— Response消息经过 Target ASN GW和 Serving ASN GW的转发 后, 发送到服务 BS上。
步骤 308: 服务 BS收到 HO— Response消息后, 向 MS回复切换响应消息 MOB— BSHO— RSP, 用于指示终端进行切换。
步骤 309: MS回复切换指示 MOB— HO— IND消息给服务 BS, 指示服务
BS其准备切换到目标 BS。
步骤 310: 服务 BS收到消息后, 通过 HO— Confirm消息通知目标 BS。 其中, HO— Confirm经过 Serving ASN GW和 Target ASN GW的转发给目 标 BS上。 步骤 311 : MS正式从目标 BS入网。
进一步的, 在上述的实施方式中, 当服务 BS与目标 BS间有 R8接口 的时候, 切换消息 (HO— Request, HO— Response, HO— Confirm ) 可以在 BS 间通过 R8接口直接传递,而不需要经过 Serving ASN GW和 Target ASN GW 的转发, 而其他过程类似。
实施方式二
参考图 4 , 为本发明实施方式中一种辅助数据通道注册的方法。 在 MS 由 Serving ASN GW向 Target ASN GW切换过程中, 目标 BS在切换执行阶 段进行数据通道注册, 由目标 BS在其发送的数据通道注册请求 (DP Reg Req )消息中携带 QoS参数信息或者由 Anchor ASN GW在其发送的 DP Reg Rs 消息中携带 QoS参数信息, 目标接入业务网网关从所述 DP Reg Req或 DP Reg Rs 消息中获取 Qo S参数信息, 该方法包括:
步骤 401: MS向服务 BS发送 MOB— MSHO— REQ消息。
其中,给 MS提供接入服务的 BS称为该 MS的服务 BS ( Serving BS ) 。 步骤 402: 服务 BS接收 MOB— MSHO— REQ消息后, 向其目标 BS发送 HO— Request消息。
其中, HO— Request消息经过 Serving ASN GW、 Target ASN GW的转 发发送到目标 BS上。
步骤 403 : 目标 BS向 Serving BS回复 HO— Response消息, 响应切换请 求 (HO— Request)。
其中, HO— Response消息经过 Target ASN GW和 Serving ASN GW的 转发后, 发送到服务 BS上。
步骤 404: 服务 BS收到 HO— Response消息后, 向 MS回复切换响应消 息 MOB— BSHO— RSP, 用于指示终端进行切换。
步骤 405: 所述 MS回复切换指示 MOB— HO— IND消息给服务 BS , 指 示服务 BS其准备切换到目标 BS。
步骤 406: 服务 BS收到消息后, 通过 HO— Confirm消息通知目标 BS。 其中, HO— Confirm经过 Serving ASN GW和 Target ASN GW的转发发 送到目标 BS上。
步骤 407: MS正式从目标 BS入网。
步骤 408: MS正式从目标 BS入网后, 如果切换预准备阶段没有预注 册数据通道, 所述目标 BS 向其对应的 ASN GW (即 Target ASN GW )发 送 DP Reg Req消息, 发起数据通道的注册过程, 其中在 DP Reg Req消息 中可以携带有所述移动终端业务流的 QoS参数信息, 该 QoS参数信息由服 务 BS在步骤 402中携带在 HO— Request消息中发送给目标 BS。
步骤 409: Target ASN GW接收所述 DP Reg Req消息后,发起与 Anchor DPF所在的 Anchor ASN GW的数据通道注册过程, 注册到 Anchor DPF的 数据通道。
进一步地, 步骤 409具体为: Target ASN GW向 Anchor ASN GW发送 DP Reg Req消息, Anchor ASN GW收到所述消息进行注册后,向 Target ASN GW回复 DP Reg Rs 消息。 如果步骤 408中, DP Reg Req消息中携带有 QoS参数信息, 则 Target ASN GW向 Anchor ASN GW发送的 DP Reg Req 消息中也携带有 QoS参数信息。
Anchor ASN GW在回复给 Target ASN GW的 DP Reg Rs 消息中, 在 以下几种情况下建议携带 QoS参数信息:
如果 Anchor ASN GW不接受 Target ASN GW发送给 Anchor ASN GW 的 DP Reg Req消息中携带的 QoS参数信息(例如: 当终端的切换发生在两 个不同 ASN GW下的 BS时, 其业务的承载发生了变化, 那么其所能应用 的 QoS能力也可能发生变化,此时可能导致 Anchor GW需要改变所述终端 的 QoS参数信息 ) , 那么它将对参数进行重新授权, 并在 DP Reg Rsp消息 中携带授权后的 QoS参数信息;
如果 Target ASN GW在步骤 408的 DP Reg Req消息中没有携带 QoS 参数信息,那么 Anchor ASN GW将把对此 MS的授权了的 QoS信息携带在 回复给 Target ASN GW的 DP Reg Rs 消息中;
Target ASN GW在收到 DP Reg Rs 消息后,对 QoS参数信息进行处理, 包括对资源进行检测和预留等操作。
步骤 410: Target ASN GW向目标 BS发送 DP Reg Rs 消息。
其中, 当在步骤 409中, Anchor ASN GW在回复给 Target ASN GW的 DP Reg Rs 消息中携带了由其授权的 QoS参数信息时, Target ASN GW向 目标 BS发送的 DP Pre— Reg Rs 消息中也携带该 Anchor ASN GW授权后的 QoS参数信息;
当在步骤 409中, Anchor ASN GW在回复给 Target ASN GW的 DP Reg Rs 消息中没有携带由其授权的 QoS参数信息时, 可选的, Target ASN GW 向目标 BS发送的 DP Reg Rs 消息中也可以携带 QoS参数信息。
步骤 411 : 目标 BS向 Target ASN GW发送 DP Reg Ack消息。
Target ASN GW收到后, 向 Anchor ASN GW发送 DP Reg Ack消息。 DP Reg Ack消息中可以进一步携带 QoS参数信息, 表明目标 BS是否接受 了 Anchor ASN GW授权的 QoS参数信息, 以及最终执行的 QoS参数信息。
进一步的, 在上述的实施方式中, 当服务 BS与目标 BS间有 R8接口 的时候, 切换消息 (HO— Request, HO— Response, HO— Confirm ) 可以在 BS 间通过 R8接口直接传递,而不需要经过 Serving ASN GW和 Target ASN GW 的转发, 而其他过程类似。
实施方式三
参考图 5 , 为本发明实施方式中一种辅助数据通道注册的方法。 在 MS 由 Serving ASN GW向 Target ASN GW切换过程中, Target ASN GW在接 收到数据通道预注册请求后, 在自身没有移动终端业务流的 QoS参数信息 的情况下, 主动向相关保存有所述移动终端业务流的 QoS参数信息的设备 或功能实体请求获得。 下面以向目标 BS主动请求为例进行说明, 该方法包 括:
步骤 501: MS向服务 BS发送 MOB— MSHO— REQ消息。
其中,给 MS提供接入服务的 BS称为该 MS的服务 BS ( Serving BS ) 。 步骤 502: 服务 BS接收 MOB— MSHO— REQ消息后, 向其目标 BS发送 HO— Request消息。
其中, HO— Request消息经过 Serving ASN GW、 Target ASN GW的转 发到目标 BS上。
步骤 503 : 目标 BS收到 HO— Request消息后, 如果预注册数据通道, 所述目标 BS 向其对应的 ASN GW (即 Target ASN GW )发送 DP Pre— Reg Req消息, 发起数据通道的预注册过程。
步骤 504: Target ASN GW接收 DP Pre— Reg Req消息后, 如果 Target ASN GW发现自身没有移动终端业务流的 QoS参数信息, Target ASN GW 向所述 BS发请求消息 (QoS Request ) , 该请求消息用于请求移动终端业 务流的 QoS参数信息。
其中, 请求消息可以是新定义的请求消息, 也可以是利用现有消息进 行扩展等方式来实现。
步骤 505: 目标 BS接收到请求消息后, 目标 BS向 Target ASN GW发 送所述请求消息的响应消息( QoS Response ) , 该响应消息携带移动终端业 务流的 QoS参数信息。
其中, 响应消息可以是新定义的请求消息, 也可以是利用现有消息进 行扩展等方式来实现。
步骤 506: Target ASN GW接收到响应消息后, 从响应消息中获取移动 终端业务流的 QoS参数信息, 向与 Anchor DPF所在的 Anchor ASN GW的 数据通道预注册, 预注册到 Anchor DPF的数据通道。
其中, 作为可选的, Target ASN GW接收到所述响应消息后, 可以向 目标 BS 回一个确认消息, 用于确认收到携带有所述移动终端业务流 QoS 参数信息的响应消息。
步骤 507: Target ASN GW向目标 BS发送 DP Pre— Reg Rs 消息。
其中, DP Pre— Reg Rsp消息中也可以携带 QoS参数信息, 该 QoS参数 信息可以是数据通道注册成功后协商的 QoS参数信息。
步骤 508: 目标 BS向 Target ASN GW发送 DP Pre— Reg Ack消息。 步骤 509: 目标 BS向 Serving BS回复 HO— Response消息, 响应切换请 求 (HO— Request)。
其中, HO— Response消息经过 Target ASN GW和 Serving ASN GW的 转发后, 发送到服务 BS上。
步骤 510: 服务 BS收到 HO— Response消息后, 向 MS回复切换响应消 息 MOB— BSHO— RSP, 用于指示终端进行切换。
步骤 511 : MS回复切换指示 MOB_HO— IND消息给服务 BS , 指示服务
BS其准备切换到目标 BS。
步骤 512: 月良务 B S收到消息后, 通过 HO— Confirm消息通知目标 B S。 其中, HO— Confirm经过 Serving ASN GW和 Target ASN GW的转发发 送到目标 BS上。
步骤 513、 MS正式从目标 BS入网。
进一步的, 在上述的实施方式中, 当服务 BS与目标 BS间有 R8接口 的时候, 切换消息 (HO— Request, HO— Response, HO— Confirm ) 可以在 BS 间通过 R8接口直接传递,而不需要经过 Serving ASN GW和 Target ASN GW 的转发, 而其他过程类似。
进一步的, 目标 ASN GW ( Target ASN GW )也可以向给所述移动终端 提供服务的 Serving ASN GW或 Serving SFA ( Service Flow Authorization, 业务流授权实体 ) 所在的 ASN GW (即 Anchor ASN GW ) 或 Anchor SFA 所在的 ASN GW主动请求获取移动终端业务流 QoS参数信息。 当然, 网络 中的其它设备或者功能实体如果也保存有所述移动终端业务流 QoS参数信 息, 在可通信的情况下, 也可以向该设备或功能实体主动请求获得; 其流 程可参考本实施方式。 实施方式四
参考图 6 , 为本发明实施方式中一种辅助数据通道注册的方法。 在 MS 由 Serving ASN GW向 Target ASN GW切换过程中, 在切换执行阶段, 目 标 ASN GW在接收到数据通道注册请求后, 在自身没有移动终端业务流的 QoS参数信息的情况下, 主动向相关保存有移动终端业务流的 QoS参数信 息的设备或功能实体请求获得。 下面以向目标 B S主动请求为例进行说明, 该方法包括:
步骤 601: MS向服务 BS发送 MOB— MSHO— REQ消息。
其中,给 MS提供接入服务的 BS称为该 MS的服务 BS ( Serving BS ) 。 步骤 602: 服务 BS接收 MOB— MSHO— REQ消息后, 向其目标 BS发送
HO— Request消息。
其中, HO— Request消息经过 Serving ASN GW、 Target ASN GW的转 发发送到目标 BS上。
步骤 603 : 目标 BS向 Serving BS回复 HO— Response消息, 响应切换请 求 (HO— Request)。
其中, HO— Response消息经过 Target ASN GW和 Serving ASN GW的 转发后, 发送到服务 BS上。
步骤 604: 服务 BS收到 HO— Response消息后, 向 MS回复切换响应消 息 MOB— BSHO— RSP, 用于指示终端进行切换。
步骤 605: MS回复切换指示 MOB_HO— IND消息给服务 BS , 指示服务
BS其准备切换到目标 BS。
步骤 606: 服务 BS收到消息后, 通过 HO— Confirm消息通知目标 BS。 其中, HO— Confirm经过 Serving ASN GW和 Target ASN GW的转发发 送到目标 BS上。
步骤 607: MS正式从目标 BS入网。
步骤 608: MS正式从目标 BS入网后, 如果切换预准备阶段没有预注 册数据通道, 所述目标 BS 向其对应的 ASN GW (即 Target ASN GW )发 送 DP Reg Req消息, 发起数据通道的注册过程。
步骤 609: Target ASN GW接收所述 DP Pre— Reg Req消息后,如果 Target ASN GW发现自身没有移动终端业务流的 QoS参数信息,该 Target ASN GW 向目标 B S发请求消息 ( Qo S Request ) , 该请求消息用于请求移动终端业 务流的 QoS参数信息。
其中, 请求消息可以是新定义的请求消息, 也可以是利用现有消息进 行扩展等方式来实现。
步骤 610: 目标 BS接收到所述请求消息后, 目标 BS向 Target ASN GW 发送请求消息的响应消息( QoS Response ) , 该响应消息携带移动终端业务 流的 QoS参数信息。
其中, 响应消息可以是新定义的请求消息, 也可以是利用现有消息进 行扩展等方式来实现。
步骤 611 : Target ASN GW接收到响应消息后, 从响应消息中获取移动 终端业务流的 QoS参数信息, 向与 Anchor DPF所在的 Anchor ASN GW的 数据通道注册 , 注册到 Anchor DPF的数据通道。
其中, 作为可选的, Target ASN GW接收到响应消息后, 可以向目标 BS回一个确认消息,用于确认收到携带有移动终端业务流 QoS参数信息的 响应消息。
步骤 612: Target ASN GW向目标 BS发送 DP Reg Rs 消息。
其中, DP Reg Rsp消息中也可以携带 QoS参数信息, 该 QoS参数信息 可以是数据通道注册成功后协商的 QoS参数信息。
步骤 613: 目标 BS向 Target ASN GW发送 DP Reg Ack消息。
进一步的, 在上述的实施方式中, 当服务 BS与目标 BS间有 R8接口 的时候, 切换消息 (HO— Request, HO— Response, HO— Confirm ) 可以在 BS 间通过 R8接口直接传递,而不需要经过 Serving ASN GW和 Target ASN GW 的转发, 而其他过程类似。
进一步的, 所述目标 ASN GW ( Target ASN GW )也可以向给所述移动 终端提供服务的 Serving ASN GW或 Serving SFA所在的 ASN GW (即 Anchor ASN GW ) 或 Anchor SFA所在的 ASN GW主动请求获取所述移动 终端业务流 QoS参数信息。 当然, 网络中的其它设备或者功能实体如果也 保存有所述移动终端业务流 QoS参数信息, 在可通信的情况下, 也可以向 该设备或功能实体主动请求获得; 其流程可参考本实施方式。 实施方式五
本实施方式中, 在 ASN profile C情况下, 即无线资源管理和切换控制 的主要功能配置于 BS , 而寻呼控制、 位置登记、 外部代理功能则配置于 ASN GW。在 MS由 Serving ASN GW向 Target ASN GW切换过程中, Target ASN GW 在转发切换请求(HO— Request)时, 可以从所述切换请求 (HO— Request)中至少解析出所述移动终端业务流的 QoS参数信息, 并保存 在本地(由于现有技术中 Target ASN GW在转发所述切换请求时不做解析、 保存处理, 因此本实施方式可以釆用对 Target ASN GW进行软件或硬件的 修改来实现 ) ; 当 Target ASN GW接收到目标 BS发起的数据通道预注册 或注册请求时, Target ASN GW可以从本地获取所述移动终端的 QoS参数 信息。 通过本实施方式, 可以有效的注册起数据通道。
需要说明的是, 所述的本地可以理解为对目标接入业务网网关(Target ASN GW )通过软件或硬件的改造实现 ,也可以理解为新增一个保存信息的 设备或实体与 Target ASN GW相连用于保存 QoS参数信息。
参考图 7 , 本发明实施方式公开一种目标接入业务网网关, 该接入业务 网网关用于在移动终端由月良务接入业务网网关向所述目标接入业务网网关 切换过程中辅助数据通道注册, 目标接入业务网网关包括:
接收模块 701 , 用于接收携带移动终端业务流的 QoS参数信息的消息; 获取模块 702 ,用于从接收模块 701接收到的携带有移动终端业务流的 QoS参数信息的消息中获取移动终端业务流的 QoS参数信息, 该 QoS参数 信息用于辅助目标接入业务网网关注册数据通道。
进一步地, 目标接入业务网网关可以包括:
保存模块 703 , 用于保存获取模块 702获取的移动终端业务流的 QoS 参数信息。
进一步的, 目标接入业务网网关还可以包括:
发送模块 704 , 用于在利用 QoS参数信息辅助注册数据通道后, 向目 标 BS发送数据通道注册的响应消息,该响应消息携带数据通道注册协商后 的 QoS参数信息。
参考图 8、本发明实施方式公开一种切换过程中辅助数据通道注册的装 置, 该装置用于在移动终端由月良务接入业务网网关向目标接入业务网网关 切换过程中辅助数据通道注册, 装置包括:
消息生成模块 801 , 用于生成携带有移动终端业务流的 QoS参数信息 的消息; 发送模块 802 ,用于向目标接入业务网网关发送消息生成模块 801生成 的消息。
需要说明的是, 切换过程中辅助数据通道注册的装置可以是目标 BS, 也可以是给移动终端提供服务的 Serving ASN GW或 Serving SFA所在的 ASN GW (即 Anchor ASN GW ) 或 Anchor SFA所在的 ASN GW。 当然 , 网络中的其它设备或者功能实体如果也保存有移动终端业务流 QoS参数信 息, 在可通信的情况下, 切换过程中辅助数据通道注册的装置也可以是该 设备或功能实体。
综上所述, 本发明实施例的所公开的方式, 通过在数据通道预注册消 息或注册消息中携带 QoS参数信息, 或由 Anchor GW主动发送 QoS参数 信息, 或由目标 ASN GW主动请求 QoS参数信息, 或由目标 ASN GW从 切换请求消息中解析出 QoS参数信息等,目标 ASN GW可以获得 QoS参数 信息, 以用于在切换过程中辅助数据通道的注册。 本发明的精神和范围。 这样, 倘若本发明的这些修改和变型属于本发明权 利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在 内。

Claims

权 利 要 求 书
1、 一种切换过程中辅助数据通道注册的方法, 其特征在于, 该方法包括: 在移动终端由服务接入业务网网关向目标接入业务网网关切换过程中, 所 述目标接入业务网网关获取所述移动终端业务流的 QoS参数信息, 所述 QoS 参数信息用于辅助所述目标接入业务网网关注册数据通道。
2、 如权利要求 1 所述的方法, 其特征在于, 所述目标接入业务网网关通 过数据通道注册请求消息或数据通道预注册请求信息获取所述 QoS参数信息, 所述数据通道注册请求消息或数据通道预注册请求信息由目标 BS发送。
3、 如权利要求 2所述的方法, 其特征在于, 所述方法进一步包括: 所述目标接入业务网网关向所述目标 BS发送数据通道注册或数据通道预 注册请求响应消息, 所述响应消息携带 QoS参数信息。
4、 如权利要求 1 所述的方法, 其特征在于, 所述目标接入业务网网关获 取所述移动终端业务流的 QoS参数信息, 包括:
所述目标接入业务网网关接收目标 BS发送的数据通道注册请求消息或数 据通道预注册请求消息, 所述数据通道注册请求消息或数据通道预注册请求消 息中携带 QoS参数信息;
所述目标接入业务网网关向所述锚点接入业务网网关发送数据通道注册 请求消息或数据通道预注册请求消息, 所述数据通道注册请求消息或数据通道 预注册请求消息中携带 QoS参数信息;
所述目标接入业务网网关接收锚点接入业务网网关发送的 QoS参数信息, 所述锚点接入业务网网关发送的 QoS 参数信息为所述锚点接入业务网网关在 不接受所述目标接入业务网网关在数据通道注册请求消息或数据通道预注册 请求消息中携带的 QoS参数信息时对参数进行重新授权得到。
5、 如权利要求 4所述的方法, 其特征在于, 所述目标接入业务网网关接 收锚点接入业务网网关发送的所述移动终端业务流的 QoS参数信息具体为:所 述目标接入业务网网关接收锚点接入业务网网关的数据通道注册响应消息或 数据通道预注册请求响应消息, 所述数据通道注册响应消息或数据通道预注册 请求响应消息中包含经所述锚点接入业务网网关授权得到的 QoS参数信息。
6、 如权利要求 5所述的方法, 其特征在于, 更进一步地, 所述目标接入 业务网网关在向目标基站发送的数据通道注册请求响应消息或数据通道预注 册请求响应消息中携带经所述锚点接入业务网网关授权得到的 QoS参数信息。
7、 如权利要求 6所述的方法, 其特征在于, 更进一步地包括:
所述目标接入业务网网关接收发自所述目标基站的数据通道注册确认消 息或数据通道预注册确认消息, 消息中携带最终执行的 QoS参数信息;
所述目标接入业务网网关接收到所述确认消息后向所述锚点接入业务网 网关发送的数据通道注册确认消息或数据通道预注册确认消息中携带最终执 行的 QoS参数信息。
8、 如权利要求 1所述的方法, 其特征在于, 所述方法进一步包括: 所述目标接入业务网网关接收发自所述目标 BS的数据通道注册或数据通 道预注册请求后, 若所述目标接入业务网网关自身未保存移动终端业务流的 QoS参数信息, 则向所述目标 BS请求所述 QoS参数信息;
所述目标接入业务网网关接收所述目标 BS发送的携带有所述 QoS参数信 息的响应消息。
9、 如权利要求 1所述的方法, 其特征在于, 所述方法进一步包括: 所述目标接入业务网网关接收发自目标基站的数据通道注册请求消息或 数据通道预注册请求消息, 若所述目标接入业务网网关自身未保存移动终端业 务流的 QoS参数信息,则向所述移动终端的服务接入业务网网关请求所述 QoS 参数信息;
所述目标接入业务网网关接收由所述服务接入业务网网关发送的携带有 所述 QoS参数信息的响应消息。
10、 如权利要求 1所述的方法, 其特征在于, 所述方法进一步包括: 所述目标接入业务网网关接收目标基站发送数据通道注册请求消息或数 据通道预注册请求消息, 若所述目标接入业务网网关自身未保存移动终端业务 流的 QoS参数信息, 则向所述移动终端的锚点接入业务网网关请求所述 QoS 参数信息;
所述目标接入业务网网关接收由锚点接入业务网网管发送的携带有所述 QoS参数信息的响应消息。
11、 如权利要求 1所述的方法, 其特征在于, 所述方法进一步包括: 所述目标接入业务网网关接收所述移动终端的切换请求,从所述切换请求 中解析所述移动终端业务流的 QoS参数信息并保存在本地,当所述目标接入业 务网网关接收到目标基站发起的数据通道预注册请求消息或数据通道注册请 求消息时, 从本地获取所述移动终端业务流的所述 QoS参数信息。
12、一种切换过程中辅助数据通道注册的方法,其特征在于,该方法包括: 在移动终端由服务接入业务网网关向目标接入业务网网关切换过程中, 目 标基站向所述目标接入业务网网关发送所述移动终端业务流的 QoS参数信息, 所述 QoS参数信息用于辅助所述目标接入业务网网关注册数据通道。
13、 如权利要求 12所述的方法, 其特征在于, 所述目标基站向所述目标 接入业务网网关发送所述移动终端业务流的 QoS参数信息具体为:
目标基站向所述目标接入业务网网关发送数据通道注册或预注册请求消 息,所述数据通道注册请求消息或数据通道预注册请求消息携带所述 QoS参数 信息。
14、 如权利要求 12所述的方法, 其特征在于, 所述方法进一步包括, 目 标基站接收所述目标接入业务网网关发送的数据通道注册请求消息的响应消 息或数据通道预注册请求消息的响应消息,所述响应消息携带所述 QoS参数信 息。
15、 一种目标接入业务网网关, 其特征在于, 所述目标接入业务网网关用 于在移动终端由服务接入业务网网关向所述目标接入业务网网关切换过程中 辅助数据通道注册, 所述目标接入业务网网关包括:
接收模块 ( 701 ),用于接收携带所述移动终端业务流的 QoS参数信息的消 息;
获取模块(702 ) , 用于从所述接收模块(701 ) 中接收到的携带有所述移 动终端业务流的 QoS参数信息的消息中获取所述移动终端业务流的 QoS参数 信息, 所述 QoS参数信息用于辅助所述目标接入业务网网关注册数据通道。
16、 如权利要求 15所述的目标接入业务网网关, 其特征在于, 所述目标 接入业务网网关进一步包括:
保存模块( 703 ), 用于保存所述获取模块(702 )获取的所述移动终端业 务流的 QoS参数信息。
17、 如权利要求 15或 16所述的目标接入业务网网关, 其特征在于, 所述 目标接入业务网网关进一步包括:
发送模块(704 ) , 用于在利用所述 QoS参数信息辅助注册数据通道后, 向目标 BS发送数据通道注册的响应消息, 所述响应消息携带数据通道注册协 商后的 QoS参数信息。
18、 一种切换过程中辅助数据通道注册的装置, 其特征在于, 所述装置用 于在移动终端由服务接入业务网网关向目标接入业务网网关切换过程中辅助 数据通道注册, 所述装置包括:
消息生成模块(801 ) , 用于生成携带有所述移动终端业务流的 QoS参数 信息的消息;
发送模块( 802 ) , 用于向所述目标接入业务网网关发送所述消息生成模块 ( 801 )生成的消息。
PCT/CN2009/070451 2008-02-18 2009-02-17 一种切换过程中辅助数据通道注册的方法及装置 WO2009103233A1 (zh)

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