IP over IEEE 802.16(e) Networks (16ng) Last Modified: 2006-03-13 Chair(s): Soohong Daniel Park Gabriel Montenegro Internet Area Director(s): Mark Townsley Margaret Wasserman Technical Advisor(s): Maximilian Riegel Mailing Lists: 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 Description of Working Group: 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), Korea 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, and, 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 are not part of the 802.16 standard, and depend on the type of data services being offered (e.g., 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 multicasting (e.g., for neighbor discovery, ARP, IP multicasting services, etc.) or direct communication to the other nodes in the network. While the built-in Convergence Sublayers (e.g., either IP CS or Ethernet CS) may rectify this, full details are not yet fleshed out. As for fast mobility, the characteristics of IEEE 802.16e link-layer operation may require special considerations when implementing Fast Mobile IPv6 (RFC 4068), something which may be pursued in the MIPSHOP WG. In the case of Fast Mobile IPv4 (FMIPv4) over IEEE 802.16(e), the specification will be done by the MIP4 WG. The 16ng WG will participate and help coordinate with the other 16ng efforts. The principal objective of the 16ng working group is to identify what limitations and considerations apply to IPv4 and IPv6 adoption over IEEE 802.16(e), and to propose available solutions. The working group may issue recommendations to IEEE 802.16 aiming at improving support for IP. These recommendations will be needed rather soon. The WiMAX Forum is slated to specify IPv6 operation over IEEE 802.16(e) in 2006. On the other hand, WiBro is already planning IPv4 deployment in 2006 (IPv6 over WiBro will begin in the near future). Accordingly, the working group will work and coordinate with the WiMAX Forum and with the WiBro efforts. The scope of this working group is as follows (WG Deliverables); - Produce - Problem Statements for IPv6 and IPv4 over IEEE 802.16(e) Networks to identify the problems and limitations of IP adoption over IEEE 802.16(e) networks. [Informational RFC] - Produce - IPv6 over IEEE 802.16(e) Networks" to define IPv6 operation including the transmission of IPv6 over IEEE 802.16(e) links, Neighbor Discovery Protocol, Stateful (DHCPv6) and Stateless Address Configuration, Broadcast, Multicast, etc. [Proposed Standard RFC] - Produce - IPv4 over IEEE 802.16(e) Networks" to define IPv4 operation including the transmission of IPv4 over IEEE 802.16(e) links, ARP operation, Stateful Address Configuration (DHCPv4), Broadcast, Multicast, etc. [Proposed Standard RFC] - Coordinate with the MIPSHOP WG with regard to "Fast Handover Mobile IPv6 over IEEE 802.16e Networks" to define fast handover scheme for mobile IPv6 (RFC 4068) over IEEE 802.16e links. [Informational RFC] - Coordinate with the MIP4 WG with regard to "Fast Handover Mobile IPv4 over IEEE 802.16e Networks" to define fast handover scheme for mobile IPv4 over IEEE 802.16e links. [Informational RFC] - Produce "IP deployment over IEEE 802.16(e) Networks" to illustrate the IP deployment scenarios and considerations over IEEE 802.16(e) networks. [Informational RFC] This working group will reuse existing specifications whenever reasonable and possible. Related documents: - 16NG Problem Statements I-D: draft-jee-16ng-ps-goals-00 - IPv6 Neighbor Discovery over 802.16: Problems and Goals I-D: draft-madanapalli-nd-over-802.16-problems-00 - Transport of IP over 802.16 I-D: draft-mandin-ip-over-80216-ethcs-00 - Real-Time usage of IEEE 802.16: Problem Statement I-D: draft-neves-rt-usage-80216-problem-statement-00 - IPv6 Solution Framework for WiMAX I-D: coming soon - IPv6 NDP for Common Prefix Allocation in IEEE 802.16 I-D: draft-jeon-ipv6-ndp-ieee802.16-00 - Considerations of NDP over IEEE 802.16 Networks I-D: draft-lee-ndp-ieee802.16-00 - QoS Aware Real-Time Support for IPv6 in IEEE 802.16 Backhaul scenarios I-D: draft-neves-rt-qos-ipv6-80216-00 - Scenarios and Considerations of IPv6 in IEEE 802.16 Networks I-D: draft-shin-ipv6-ieee802.16-01 - IPv6 Deployment Scenario over Mobile Broadband Wireless Networks I-D: draft-nam-ipv6-802-16e-00 - Transmission of IPv6 Packets over IEEE 802.16 I-D: draft-shin-16ng-ipv6-transmission-00 - Link-local Multicast Packet Transmission in 802.16 Networks I-D: draft-jang-16ng-llm-00 Agenda: o Update: 2006-03-13 o Timeslot: 2 hrs o Agenda Items: 05 mins: Agenda bashing - chairs 20 mins: 16NG Problem Statement - Junghoon Jee 10 mins: WiMAX Forum NWG Stage 3 work for IPv6 - Basavaraj Patil 10 mins: IPv6 over IEEE 802.16 Solution Framework - Syam Madanapalli 50 mins: Charter discussion - chairs [If time allows] 05 mins: IPv6 NDP for Common Prefix Allocation in IEEE 802.16 - Hongseok Jeon 05 mins: IPv6 Packet Tramsmission over 802.16 Networks - Myungki Shin 05 mins: Real-Time usage of IEEE 802.16: Problem Statement - Pedro Neves 05 mins: QoS Aware Real-Time Support for IPv6 in IEEE 802.16 Backhaul scenarios - Pedro Neves 05 mins: Closing - chairs ======== 120 mins