Submission Title: [Technical Discussion – Issue of compatibility] August, 2007 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Technical Discussion – Issue of compatibility] Date Submitted: [September 18, 2007] Source: [Chang Sub Shin] Company [ETRI] Address [161 Gajeong-dong Yuseong-gu, Daejeon, Korea] Voice:[+82-42-869-1768], FAX: [+82-42-869-1712], E-Mail:[shincs@etri.re.kr] Re: [] Abstract: [This is for the discussion on 802.15.5 low rate WPAN mesh.] Purpose: [for discussion and reference] 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. Chunhui Zhu / Samsung

Issues about function class and compatibility August, 2007 Issues about function class and compatibility Chang Sub Shin, Soyoung Hwang, Bongsoo Kim ETRI Chunhui Zhu / Samsung

Function class of IEEE802.15.4 M : Mandatory O : Optional August, 2007 Function class of IEEE802.15.4 M : Mandatory O : Optional O.n : Optional, but support of at least one of the group of options labeled O.n is required. Chunhui Zhu / Samsung

Optional item in IEEE802.15.4 - 1 August, 2007 number item optional Unsecured mode Mandatory secured mode RFD, FFD P.17 use of a superframe structure P.25 acknowledgment frame P.19 data confidentiality P.97 MLME-GTS.request P.100 MLME-GTS.indication P.99 MLME-GTS.confirm P.108 MLME-RX-ENABLE.request P.110 MLME-RX-ENABLE.confirm P.127 MLME-SYNC.request P.72 Timestamp Chunhui Zhu / Samsung

Optional item in IEEE802.15.4 - 2 August, 2007 number item optional MCPS-PURGE.request RFD MCPS-PURGE.confirm P.80 MLME-ASSOCIATE.indication P.81 MLME-ASSOCIATE.response P.25 MLME-ORPHAN.indication P.19 MLME-ORPHAN.response P.122 MLME-START.request P.126 MLME-START.confirm P.190 Promiscuous mode Chunhui Zhu / Samsung

Case - 0 There is example of security function in 15.4 August, 2007 Case - 0 There is example of security function in 15.4 It’s good example to decide about mandatory, optional functions Chunhui Zhu / Samsung

August, 2007 Case - 1 All devices shall be capable of performing passive scans and orphan scans; ED scans and active scans are optional for an RFD. However, an RFD may support active scanning to participate in a nonbeacon-enabled network. (P113) Chunhui Zhu / Samsung

August, 2007 Case - 2 P.66 The PHY shall provide the capability to perform CCA according to at least one of the following three methods: CCA Mode 1: Energy above threshold. CCA shall report a busy medium upon detecting any energy above the ED threshold. CCA Mode 2: Carrier sense only. CCA shall report a busy medium only upon the detection of a signal compliant with this standard with the same modulation and spreading characteristics of the PHY that is currently in use by the device. This signal may be above or below the ED threshold. CCA Mode 3: Carrier sense with energy above threshold. CCA shall report a busy medium using a logical combination of Detection of a signal with the modulation and spreading characteristics of this standard and Energy above the ED threshold, where the logical operator may be AND or OR. Chunhui Zhu / Samsung