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Inter Working Between Trusted and Non-Trusted Models LBS Roaming Meeting, Macau March 22, 2007 PowerPoint Presentation
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Inter Working Between Trusted and Non-Trusted Models LBS Roaming Meeting, Macau March 22, 2007

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Inter Working Between Trusted and Non-Trusted Models LBS Roaming Meeting, Macau March 22, 2007

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  1. Inter Working Between Trusted and Non-Trusted Models LBS Roaming Meeting, Macau March 22, 2007

  2. Roaming Scenarios Matrix

  3. Non-Trusted to Trusted Roaming (Without An Inter-PDE Interface) • The Visited MS connects to H-MPC and sends services layer authorization request. The H-MPC detects that the MS is roaming based on SID/NID information and allocates the V-PDE address in service authorization response • The Visited MS initiated an IS-801 positioning session with the V-PDE • The H-MPC positioning authorization records and VDE billing procedures can be used for settlement/billing Home operator – Nontrusted LBS model Visited operator – Trusted LBS model Network connection MIP tunnel Internet HA AAA AAA PDSN FA PDSN V-PDE H-MPC H-PDE BSA PCF PCF RAN BSA RAN Positioning layer (IS-801) signaling between MS and V-PDE Services layer signaling on MS-MPC interface. V-PDE allocation by H-MPC

  4. Non-Trusted to Trusted Roaming (With An Inter-PDE Interface) • The roaming device initiates IS-801 call flow with the H-PDE • For LBS roaming between a nontrusted (home) and a trusted (visiting) carrier, the H-MPC allocates the H-PDE address as it normally does for its home devices • The H-PDE sends transaction requests over the inter-PDE connection to satisfy the requested IS-801 call flow • The H-PDE uses existing home procedures for settlement/billing Home operator – Nontrusted LBS model Visited operator – Trusted LBS model Network connection MIP tunnel Internet HA AAA AAA PDSN FA PDSN V-PDE H-MPC H-PDE PCF PCF RAN BSA BSA RAN Positioning layer (IS-801) signaling between MS and H-PDE Services layer signaling on MS-MPC interface. Inter-PDE transaction protocol

  5. Trusted to Non-Trusted Roaming (With Inter PDE Interface) Visited operator – Non-Trusted LBS model Home operator – Trusted LBS model Network connection MIP tunnel • The Mobile Station in this case always connects to its H-PDE for doing positioning using IS-801 signaling Internet HA AAA AAA PDSN FA PDSN V-PDE V-MPC H-PDE PCF PCF RAN BSA BSA RAN Positioning layer (IS-801) signaling between MS and H-PDE Inter-PDE transaction protocol • The H-PDE detects that the Mobile Station is roaming in this case and the H-PDE then uses transaction services over the inter-PDE link to serve the IS-801 session of the roaming mobile station • The H-PDE uses existing home procedures for billing and settlement

  6. Trusted to Non-Trusted Roaming (With DNS) Visited operator – Non-Trusted LBS model Home operator – Trusted LBS model Network connection MIP tunnel • The Mobile Station in this case uses a LBS specific DNS FQDN (Example SID.NID.Local.PDE) to do DNS resolution for the V-PDE IP address • Once V-PDE IP address is received, the Mobile Station initiates the IS-801 session with the V-PDE. More details on how the DNS solution can be implemented can be found on the CDG IRT WiKi page • Once IS-801 session is completed. the V-PDE can send an unsolicited report message (gpsoreq’) to the V-MPC. V-MPC can use this message for billing/settlement. Internet HA AAA AAA PDSN FA PDSN V-PDE V-MPC H-PDE PCF PCF RAN BSA BSA RAN Positioning layer (IS-801) signaling between MS and H-PDE

  7. Trusted to Non-Trusted Roaming (continued) • For the PDE interconnection solution using transaction protocol the roaming device always connects to the H-PDE and the H-PDE appropriately sends transaction requests to the V-PDE to complete the IS-801 call flow. • The H-PDE and V-PDE are interconnected using standard solutions, such as VPN. This is a controlled interface on which the roaming partner provides a wholesale LBS service. • User level authentication is not the responsibility of V-PDE. The V-PDE will serve the incoming location requests in a trusted manner with the assumption that all the authentication checks have been successfully performed at the Home LBS system. • For the DNS solution, the device in the visited network will get the V-PDE IP address via DNS resolution. Details on how the DNS resolution schemes can work are captured in a separate document on CDG IRT WiKi page. • The non-trusted visited carrier’s PDE should allow the roaming partner’s devices to access the visited PDE via a new trusted port. • Once the LBS application resolves the V-PDE’s IP address (via DNS), it will attempt to access the V-PDE on the new trusted port.