doc.: IEEE 802.11-00/XXXr0 Sep 19, 2007 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)‏ Submission Title: [Resolutions to Comments on LQI mapping ] Date Submitted: [09 September 2008] Source: [Su-Khiong Yong1, Pengfei Xia1, Huai-Rong Shao1, Chiu Ngo1, Jisung Oh1, Edwin Kwon1, Seongsoo Kim1, Junyi Wang2, Zhou Lan2, Chang woo Pyo2, Chin-Sean Sum2, Tuncer Baykas2, Azizur Rahman2, Ryuhei Funada2, Fumihide Kojima2, Hiroshi Harada2, Shuzo Kato2, Ismail Lakkis3] Company [Samsung Electronics1, NICT2, Tensorcom3] Address [416 Maetan-3Dong Yeongtong-Gu Suwon-shi Kyunggi-Do 443-742, Korea1 3-4 Hikari-no-oka, Yokosuka-shi, Kanagawa 239-0847, Japan2 10875 Rancho Bernardo Rd, #108, San Diego, CA 92127, USA3] Voice: [], FAX: [], E-Mail: [sk.yong@samsung.com] Re: [Comment Resolutions related to comment 520] Abstract: [To be considered in TG3C baseline document.] Purpose: [This document provides a list of the editing staff that will be working on 802.15.3c.] 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. Name - WirelessHD Page 1

Resolution to comment 520 i. e Resolution to comment 520 i.e. “SINR and SNIR shall be replaced with LQI as a generic metric”

Resolution Modified the following paragraph in 7.4.27 in pp 34 “The Best Sector field shall be set to the index of the best transmit sector for the originating DEV. In the SAS case, this also represents the index of the best receiver sectors for the target DEV. The Best Sector SINR field shall be set to the value of SINR measured by the Target DEV for the best sector. The Best Sector SINR field encoded in dB with a value of zero indicating an SINR less than or equal to 0 dB and a value of fifteen indicating an SINR of greater than or equal to 15 dB The Second Best Sectors field shall be set to the index of the second best transmit sector for the originating DEV. In the SAS case, this also represents the index of the second best receiver sectors for the target DEV The Second Best Sector SINR field shall be set to the value of SINR measured by the Target DEV for the second best sector. The Second Best Sector SINR is encoded in the same manner as the Best Sector SINR.” To the paragraph in the next page.

Resolution (cont’d) Modified the following paragraph in 7.4.27 in pp 34 “The LQI type field indicates the type of metric used in Best/Second Best Sector LQI. The field value to a certain type is defined in Table xxx. The Best Sector field shall be set to the index of the best transmit sector for the originating DEV. In the SAS case, this also represents the index of the best receiver sectors for the target DEV. The Best Sector SINR LQI field shall be set to the value of SINR LQI measured by the Target DEV for the best sector. The Best Sector SINR LQI field is encoded in dB with 2dB step. A value of zero indicating an SINR LQI less than or equal to 0 dB and a value of fifteen indicating an SINR LQI of greater than or equal to 15 28 dB. The corresponding LQI values in the case of SNR/SINR and RSSIr are given in Table abc and Table xyz. The Second Best Sectors field shall be set to the index of the second best transmit sector for the originating DEV. In the SAS case, this also represents the index of the second best receiver sectors for the target DEV The Second Best Sector SINR LQI field shall be set to the value of SINR LQI measured by the Target DEV for the second best sector. The Second Best Sector SINR LQI is encoded in the same manner as the Best Sector SINR LQI .”

Resolution (cont’d) Change the Figure 48m in page 34 from to Add text to 7.4.27, pp 34 in line 10 as The LQI Type field shall be set in accordance to the metrics used as shown in Figure 48x Table xxx Bit:4 4 8 Second best sector SNIR Second best sector Best sector SNIR Best sector Length Element ID Bit:4 4 8 Second best sector SNIR LQI Second best sector Best sector SNIR LQI Best sector LQI Type Length Element ID   LQI Type Metric 0000 RSSIr 0001 SNR 0010 SINR 0011-1111 Reserved Figure 48x: Metric encoding used in LQI Type field

Bit assignment RSSIr 0000 <= 0dB 0001 0-2dB 0010 2-4dB 0011 4-6dB Table xyz Bit assignment RSSIr 0000 <= 0dB 0001 0-2dB 0010 2-4dB 0011 4-6dB 0100 6-8dB 0101 8-10dB 0110 10-12dB 0111 12-14dB 1000 14-16dB 1001 16-18dB 1010 18-20dB 1011 20-22dB 1100 22-24dB 1101 24-26dB 1110 26-28dB 1111 >28dB 0dB indicates that received signal level is equal to receiver sensitivity.

Bit assignment SNR/SINR Table abc Bit assignment SNR/SINR 0000 Reserved 0001 <= 2dB 0010 2-4dB 0011 4-6dB 0100 6-8dB 0101 8-10dB 0110 10-12dB 0111 12-14dB 1000 14-16dB 1001 16-18dB 1010 18-20dB 1011 20-22dB 1100 22-24dB 1101 24-26dB 1110 26-28dB 1111 >28dB