1. <January 2002>
doc.: IEEE <02/139r0>
March, 2008
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Resolution to comment #48, #49 and #50 for DF1]
Date Submitted: [March 19, 2008]
Source: [Seung-Eun Hong1 , Yongsun Kim2, Wooyong Lee3, Jinkyeong Kim4, Kyeongpyo Kim5, Hyoungjin Kwon6]
Company: [Electronics and Telecommunications Research Institute (ETRI)]
Address: [ETRI, 161 Gajeong-dong, Yuseong-gu, Daejeon, , Republic of Korea]
Voice: [], FAX: [], 1,
Re: []
Abstract: [Comment resolutions.]
Purpose: [To be considered in IEEE c standard]
Notice: This document has been prepared to assist the IEEE P 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 P
ETRI
Chuck Brabenac, Intel Labs

2. Resolution to Comment #48
March, 2008
Resolution to Comment #48
Comment #48
Current UEP procedure doesn't seem to support various color depths of video data.
Resolution
Include text “Upper layer always sends video data which is reformatted to the color depths of 8 to the MAC layer.” in UEP section in the draft.
ETRI

3. Resolution to Comment #49 (1)
March, 2008
Resolution to Comment #49 (1)
Comment #49
Need to have an indication for the position of the middle point which separates MSBs from LSBs.
Resolution
Include “Bit Separation” field (12bit) in existing capability IE or UEP IE which has to be newly generated.
This field shall be applied to UEP type 2. And also it can be used in UEP type 1.
ETRI

4. Resolution to Comment #49 (2)
March, 2008
Resolution to Comment #49 (2)
Resolution (bit separation field format)
Bit separation can give us flexibility for controlling the ratio of MSBs and LSBs in the UEP.
In current MAC, we already have a function to separate MSBs and LSBs.
It is considered to be better to make a fixed separation ratio more flexible.
It is not a big overhead because this information is not sent every single frame.
ETRI

5. Resolution to Comment #50
March, 2008
Resolution to Comment #50
Comment #50
To make UEP be optimized for various types of video formats, UEP procedure needs to be applicable not only for MSBs and LSBs but also other classifications, for example, luminance and chrominance and so on.
Resolution
Information for video format such as RGB and YCbCr shall be transferred through MAC SAP.
ETRI