oPv6 over IEEE 802.16(e) Networks BoF (16ng) xxxxxxxx, November x at xxxx-xxxx ================================= CHAIRS: Soohong Daniel Park Gabriel Montenegro DESCRIPTION: Broadband Wireless Access networks address the inadequacies of low bandwidth wireless communication for user requirements such as high quality data/voice service, fast mobility, wide coverage, etc. The IEEE 802.16 Working Group on Broadband Wireless Access Standards develops standards and recommended practices to support the development and deployment of broadband Wireless Metropolitan Area Networks. Additionally, IEEE 802.16e is an amendment that adds support for mobility over the base IEEE 802.16 specification. Recently, the WiMAX Forum, and, in particular, its NWG (Network Working Group) is defining the IEEE 802.16(e) network architecture (e.g., IPv4, IPv6, Mobility, Interworking with different networks, AAA, etc). The NWG is thus taking on work at layers above those defined by the IEEE 802 standards (typically limited to the physical and link layers only). Similarly, WiBro (Wireless Broadband), a Korean effort which focuses on the 2.3 GHz spectrum band, is also based on the IEEE 802.16e specification. IEEE 802.16(e) is different from existing wireless access technologies such as IEEE 802.11 or 3G. Accordingly, while 802.16 defines the encapsulation of an IP datagram in an IEEE 802.16 MAC payload, complete description of IP operation is not present and can benefit from IETF input and specification. For example: immediately subsequent to network entry an 802.16 subscriber station has no capability whatsoever for data (as opposed to management) connectivity. The criteria by which the Base Station (or other headend elements) set up the 802.16 MAC connections for data transport is not part of the 802.16 standard and depends on the type of data services being offered (ie. the set up of transport connections will be different for IPv4 and IPv6 services). Additionally - as 802.16 is a point-to-multipoint network - an 802.16 subscriber station is not capable of broadcasting (eg. for neighbor discovery) or direct communication to the other nodes in the network. While the built-in LAN emulation feature of 802.16 ("802.3 Convergence Sublayer") rectifies this, it may involve additional packet overhead. As for fast mobility, the characteristics of IEEE 802.16e link-layer operation may require an amendment to the Fast Handover Mobile IPv6 scheme (RFC 4068), something which may be pursued in the MIPSHOP WG. The principal objective of the 16ng BoF is to identify what limitations and considerations apply to IPv6 adoption over IEEE 802.16(e), and to propose available solutions. The working group may issue recommendations to IEEE 802.16(e) suggesting protocol modifications for better IP support. In 2006, WiBro deployment will begin, and the WiMAX Forum is slated to specify IPv6 operation over IEEE 802.16(e) in 2006. Accordingly, the working group will work and coordinate with the WiMAX Forum and with the WiBro efforts. MAILING LIST: General Discussion: 16ng@eeca16.sogang.ac.kr To Subscribe: http://eeca16.sogang.ac.kr/mailman/listinfo/16ng Archive: http://eeca16.sogang.ac.kr/pipermail/16ng REFERENCES: http://www.ietf.org/internet-drafts/draft-jang-mipshop-fh80216e-00.txt http://www.ietf.org/internet-drafts/draft-jee-mip4-fh80216e-00.txt http://www.ietf.org/internet-drafts/draft-jee-16ng-problem-statement-01.txt http://standards.ieee.org/getieee802/download/802.16-2004.pdf (802.16-2004 Std) AGENDA (tentative): Agenda bashing, chairs (5 mins) Overview of IEEE 802.16(e) Architecture, TBD (from WiMAX Forum or IEEE 802.16) (20 mins) Problem statements, Junghoon Jee (20 mins) Consideration of IPv6 neighbor discovery, Syam Madanapalli (20 mins) Amendment for fast handover mobile IP, Heejin Jang (10 mins) Overview proposed charter, chairs (5 mins) Charter discussion, chairs (40 mins)