Attachment indicator for handover between heterogenous networks
First Claim
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1. A method, comprising:
- receiving, in a WiMAX Signaling forwarding function (SFF) node, a preregistration request for a mobile station;
in response to the preregistration request, generating a flag to indicate whether the request is being processed by the WiMAX Signaling forwarding function node; and
forwarding a preattachment request from the WiMAX Signaling forwarding function node to an access gateway, wherein the preattachment request comprises the flag, wherein;
the access gateway comprises a WiMAX access service network gateway (ASN-GW); and
the access gateway ASN-GW receives an IM_Exit_State_Change_Rsp with R6_Attachment_Type from a preregistered ASN-GW over an R4 interface and, in response thereto, includes additional logic to invoke a Mobile IP (MIP4) or Proxy Mobile IP (PMIP6) procedures.
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Abstract
In some embodiments a method comprises receiving, in a WiMAX Signaling forwarding function (SFF) node, a preregistration request for a mobile station, in response to the preregistration request, generating a flag to indicate whether the request is being processed by the WiMAX Signaling forwarding function node, and forwarding a preattachment request from the WiMAX Signaling forwarding function node to an access gateway, wherein the preattachment request comprises the flag. Other embodiments may be described.
49 Citations
17 Claims
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1. A method, comprising:
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receiving, in a WiMAX Signaling forwarding function (SFF) node, a preregistration request for a mobile station; in response to the preregistration request, generating a flag to indicate whether the request is being processed by the WiMAX Signaling forwarding function node; and forwarding a preattachment request from the WiMAX Signaling forwarding function node to an access gateway, wherein the preattachment request comprises the flag, wherein; the access gateway comprises a WiMAX access service network gateway (ASN-GW); and the access gateway ASN-GW receives an IM_Exit_State_Change_Rsp with R6_Attachment_Type from a preregistered ASN-GW over an R4 interface and, in response thereto, includes additional logic to invoke a Mobile IP (MIP4) or Proxy Mobile IP (PMIP6) procedures. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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receiving, in a WiMAX access service network gateway (ASN-GW), a preattachment request for a mobile station comprising a flag to indicate whether the request originated from a preregistration node; in response to a determination that the flag indicates that the request originated from a preregistration node, maintaining an open interface connection with the preregistration node, wherein; the access service network gateway comprises a WiMAX access service network gateway (ASN-GW); and the access gateway ASN-GW receives an IM_Exit_State_Change_Rsp with R6_Attachment_Type from a preregistered ASN-GW over an R4 interface and, in response thereto, includes additional logic to invoke a Mobile IP (MIP4) or Proxy Mobile IP (PMIP6) procedures. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method, comprising:
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receiving, in an access gateway, a preregistration request for a WiMAX access network for a mobile station coupled to a non-WiMAX access network; and in response to the preregistration request, allowing the mobile station to remain connected to the non-WiMAX access network, wherein; the access gateway comprises a WiMAX access service network gateway (ASN-GW); and the access gateway ASN-GW receives an IM_Exit_State_Change_Rsp with R6_Attachment_Type from a preregistered ASN-GW over an R4 interface and, in response thereto, includes additional logic to invoke a Mobile IP (MIP4) or Proxy Mobile IP (PMIP6) procedures. - View Dependent Claims (14, 15, 16, 17)
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Specification