Awareness of the handover to be distinguished from a L2 or L3 May 2004 Awareness of the handover to be distinguished from a L2 or L3 Soohong Daniel Park Soohong.Park@SAMSUNG.COM Samsung Electronics. Anaheim, CA Soohong Daniel Park, Samsung Electronics.

Miscellaneous Handover May 2004 Miscellaneous Handover STA doesn’t know whether it changes AP(MN1) or AR(MN2) when moving to another domain without IP layer operations or even more layers. AP AR MN2 MN1 L3 Handover ? Soohong Daniel Park, Samsung Electronics.

May 2004 Problem Statement #3 There is no standardized mechanism in 802 for information exchange between mobile terminals and network attachment points. This impacts the ability to make informed decisions to select between disparate network attachment points or to initiate handoffs between heterogeneous network types or between administrative domains within a single network type. Thus there is a need to develop a standard that permits mobile terminals and network attachment points to access information on which to base effective handoff decisions. Soohong Daniel Park, Samsung Electronics.

Current Procedure of FMIP6 May 2004 Current Procedure of FMIP6 After discovering a new nearby AP, MN sends RtSolPr in order to resolve AP identifiers to subnet router information. If the new AP is connected to the PAR’s current interface itself, PAR MUST respond indicating that the point of attachment is known, but is connected to current interface. Handover does not require change of CoA. AR PrRtAdv (Code=5) RtSolPr AP AP MN1 RtSolPr: Router Solicitation for Proxy Advertisement PrRtAdv: Proxy Router Advertisement Soohong Daniel Park, Samsung Electronics.

May 2004 Background AP (network attachment points) lets MN know the handover either L2 or L3 when moving to a new domain. Reduced the redundant message exchanges between MN and AR when performing L2 handover. ARID (Access Router Identifier) can be simply configured in conjunction with the SSID on the AP (network attachment points). Soohong Daniel Park, Samsung Electronics.

Potential Solution ARID in the MAC Management Frame. May 2004 Potential Solution ARID in the MAC Management Frame. Capability Information in the Beacon (and Probe response) can be used for letting MN know its movement whether it occurs on L2 or L3. Simply extended value for distinguishing either L2 handover or L3. Just let STA knows what handover tends to occur when moving to another link. Simply managed and configured by admin. Soohong Daniel Park, Samsung Electronics.

ARID Format May 2004 Beacon Probe response ARID to be discussed Frame Control Duration DA SA BSSID Sequence Body FCS Timestamp Beacon Interval Capability Information SSID Supported Rates FH Parameter Set DS CF IBSS TIM Beacon Timestamp Beacon Interval Capability Information SSID Supported Rates FH Parameter Set DS CF IBSS Probe response 7 15 ARID ESS IBSS CF- Pollable CF-Poll request Privacy Short Preamble (802.11b) PBCC Channel Agility ARID Domain ID 00: 802.11 01: 3GPP 10: 802.16 11: 802.20 DID to be discussed Soohong Daniel Park, Samsung Electronics.

Proposed Operation - I May 2004 IETF is working on this area (CAPWAP WG) AR AR AP aaaa AP aaaa AP bbbb Scanning Scanning Beacon or Probe response with ARID (aaaa) Beacon or Probe response with ARID (bbbb) MN1 MN2 aaaa ? L2 Handoff bbbb ? L3 Handoff Soohong Daniel Park, Samsung Electronics.

Proposed Operation - II May 2004 Proposed Operation - II AR AR AR AR AR AP aaaa AP aaaa AP bbbb AP aaaa Scanning Scanning Beacon or Probe response with ARID (aaaa) Beacon or Probe response with ARID (bbbb) MN1 MN1 MN2 aaaa ? L2 Handoff bbbb ? L3 Handoff Soohong Daniel Park, Samsung Electronics.

Proposed Operation - III May 2004 Proposed Operation - III GGSN AR AP aaaa AP aaaa Scanning 3GPP Domain Beacon or Probe response with ARID=aaaa / DID=10 MN1 aaaa ? L2 Handoff may occur vertical handover between WLAN and 3GPP Soohong Daniel Park, Samsung Electronics.

Proposed Operation - IV May 2004 Proposed Operation - IV AR AR BS AP aaaa AP aaaa Scanning 802.16 Domain Beacon or Probe response with ARID=aaaa / DID=01 MN1 aaaa ? L2 Handoff may occur vertical handover between WLAN and 802.16 Soohong Daniel Park, Samsung Electronics.

May 2004 Conclusion Develop a standard that permits mobile terminals and network attachment points to access information on which to base effective handover decisions. Suggest to work on the solution for distinguishing either a L2 handover or a L3 handover on the 802.11 as well as heterogeneous tech. Reduce the redundant message exchanges and miscellaneous operation on mobile terminals. Soohong Daniel Park, Samsung Electronics.