1 / 8

Scope and Proposed Work Items for the Handoff Group

Catalog requirements, develop mechanisms for handoffs over 802 media focusing on PHY and MAC layers. Assess related work in IEEE, IETF, and 3GPP. Study context abstractions between different 802 technologies.

vanessar
Download Presentation

Scope and Proposed Work Items for the Handoff Group

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Scope and Proposed Work Items for the Handoff Group Kaustubh Das Prakash Iyer Huai-An (Paul) Lin Intel Corp. May 2003 Kaustubh Das, et al, Intel Corp

  2. Proposed Scope of the Handoff Group • Catalog the requirements of hard and soft handoffs over heterogeneous 802 media, and develop the handoff mechanisms accordingly • Scope specific to PHY and MAC layers only • Define the requirements and create handoff trigger abstractions for layer 3 and applications to reduce delays caused by PHY/MAC reassociations • In particular, layer 2 and below constructs for 802 technologies that could lead to lower overall handoff latency to enable real time applications Kaustubh Das, et al, Intel Corp

  3. Suggested Work Items (1) • Assess on-going work related to handoff in IEEE, IETF and 3GPP to identify the gaps, and the niche and opportunities of this Group • Layer 2 and lower (very preliminary) • Above Layer 2 • Seamoby • Trigtran • PANA • MIP • SIP • 3GPP (SA2) Kaustubh Das, et al, Intel Corp

  4. Suggested Work Items (2) • Build a taxonomy of L1 & L2 handoff requirements • Build a list of standardizable elements/aspects of 802 HO • Provide requirements, for example, to TGk • Based on IETF requirements for L3+ mobile routing protocols, develop a common abstraction for trigger requirements that are semantically similar across 802 technologies • Liaise with IETF & 3GPP to comprehend L2 handoff requirements for handoff • Study and determine requirements, if any, context abstraction and transfer between different 802 technologies • Study and determine requirements, if any, context abstraction and transfer between 802 technologies and non 802 technologies Kaustubh Das, et al, Intel Corp

  5. Suggested Work Items (3) • Propose mechanisms to eliminate sources of L2 and below handoff latency • Simultaneous AP associations • Network planning: come up a recommendation of how to plan network coverage • Create AP constellations with aggregated controls – make associations very fast; only intra/inter channel beacon/probe processing • Keep another radio primed at all times - proactively handoff sessions Kaustubh Das, et al, Intel Corp

  6. Suggested Work Items (4) • Study and propose mechanisms to enable proactive handoffs at L2 and below and triggers for L3+ • Pick AP with best connectivity characteristics (AP provides heuristic/statistical values, or APs determine collectively which one is most appropriate • Use protocol between APs for state sharing • Examples: Pre-authentication; Proactive trigger - initiate things to do • Improve visibility to L3 handoff • For example: Earlier indications of impending inter-subnet handoffs Kaustubh Das, et al, Intel Corp

  7. Not Suggested as Working Items • Any layer 3 or above mechanisms (except for convergence procedures) • However, the requirements for convergence procedures can be a FFS (For Further Study) item • Billing/Accounting mechanisms related to handoff • Authentication methods Kaustubh Das, et al, Intel Corp

  8. Motion • To include the proposed scope and work items in the PAR. Kaustubh Das, et al, Intel Corp

More Related