Project: IEEE P802.15.3a Study Group for Wireless Personal Area Networks (WPANs) - PowerPoint PPT Presentation

hollis
slide1 n.
Skip this Video
Loading SlideShow in 5 Seconds..
Project: IEEE P802.15.3a Study Group for Wireless Personal Area Networks (WPANs) PowerPoint Presentation
Download Presentation
Project: IEEE P802.15.3a Study Group for Wireless Personal Area Networks (WPANs)

play fullscreen
1 / 8
Download Presentation
66 Views
Download Presentation

Project: IEEE P802.15.3a Study Group for Wireless Personal Area Networks (WPANs)

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

  1. Project: IEEE P802.15.3a Study Group for Wireless Personal Area Networks (WPANs) Submission Title: [Octet Transmission Order for OUI-derived Numbers] Date Submitted: [16 March, 2004] Source: [Peter Johansson] Company [Congruent Software, Inc.] Address [98 Colorado Ave, Berkeley, CA 94707] Voice:[(510) 527-3926], FAX: [(510) 527-3856], E-Mail:[PJohansson@ACM.org] Re: [15-04-0134-00-003b-Octet Transmission Order for OUI-derived Numbers] Abstract: [The document discusses octet transmission order for OUI-derived numbers] Purpose: [Recommend that IEEE 802.15.3 adopt uniform octet transmission order conventions forOUI-derived numbers] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Peter Johansson (Congruent Software, Inc.)

  2. Octet Transmission OrderforOUI-derived Numbers Peter Johansson (Congruent Software, Inc.)

  3. IEEE Std 802.15.3-2003Bit and Octet Transmission Order “Octets within numeric fields that are longer than a single octet are depicted in decreasing order of significance, from highest numbered bit on the left to the lowest numbered bit on the right. The octets in fields longer than a single octet are sent to the PHY in order from the octet containing the lowest numbered bits to the octet containing the highest numbered bits.” transmission order octets 2 1 Field B Field A b15 – b8 b7 – b0 b7 – b6 b5 – b0 bits Subfield 2 Subfield 2 Subfield 1 Subfield 1 Peter Johansson (Congruent Software, Inc.)

  4. Universal Address (MAC-48) A Universal Address is a sequence of six octets. The first three take the values of the three octets of the OUI in order. The last three octets are administered by the assignee. The binary representation of an address is formed by taking each octet in order and expressing it as a sequence of eight bits, least significant bit (lsb) to most significant bit (msb), left to right. For example, the OUI AC-DE-48 could be used to generate the address AC-DE-48-00-00-80 which has the binary representation: http://www.standards.ieee.org/regauth/oui/tutorials/lanman.htm transmission order Peter Johansson (Congruent Software, Inc.)

  5. most significant ACDE 4823 4567 ABCD 16 least significant 1 0 1 0 1 1 0 0 1 1 0 1 1 1 1 0 0 1 0 0 1 0 0 0 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 IEEE 802.15.3 transmitted first transmitted next DEV Address Transmission Order • Hypothetical DEV Address • Numeric value ACDE 4823 4567 ABCD16 • Canonical representation AC-DE-48-23-45-67-AB-CD • Octet AC16 is arguably the most significant Peter Johansson (Congruent Software, Inc.)


  6. LLC/SNAP Header • OUI / Protocol ID for “wireless 1394” • msB = most significant byte (octet) Peter Johansson (Congruent Software, Inc.)

  7. Application-specific Information Element(ASIE) Peter Johansson (Congruent Software, Inc.)

  8. Recommendations • Agree on uniform octet transmission order conventions for OUI-derived numbers • Specify octet transmission order conventions in IEEE P802.15.3a • OUI 24 bits • LLC/SNAP 40 bits • DEV Address 64 bits Peter Johansson (Congruent Software, Inc.)