January 2008 doc IEEE 802 15 08 0041

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Project: IEEE P 802. 15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Fast Uplink Channel Allocation] Date Submitted: [January 14, 2008] Source: [Yongsun Kim, Wooyong Lee, Jinkyeong Kim, Kyeongpyo Kim, Hyoungjin Kwon] Company: [Electronics and Telecommunications Research Institute (ETRI)] Address: [ETRI, 161 Gajeong-dong, Yuseong-gu, Daejeon, 305 -700, Republic of Korea] Voice: [], FAX: [], E-Mail: [doori@etri. re. kr, wylee@etri. re. kr, jkkim@etri. re. kr, kpkim@etri. re. kr, kwonjin@etri. re. kr] Re: [] Abstract: [Description on Fast Uplink Channel Allocation scheme] Purpose: [To be considered in IEEE 802. 15. 3 c standard] Notice: This document has been prepared to assist the IEEE P 802. 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 P 802. 15. Submission 1 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Why Fast Uplink Channel Allocation? • • Video streaming is asymmetric point-to-point application in that the source (DVD player, set top box and so on) tends to transmit video streaming data to the sink (flat TV) one-sidedly. In this case, it is difficult for the sink to transmit control signals, ACK or user data to the sources immediately. Vertical blanking interval (VBI) is long enough but not frequently exists while horizontal blanking interval (HBI) is too short but frequently exists. For immediate uplink usage, we want to propose fast uplink channel allocation scheme to use aggregated HBIs. For example, the figure below shows one HBI is not enough for RF switching from TX to RX or RX to TX. (Sink) (Source) Submission 2 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Various Hsync and Vsync Format V Freq HRES VRES DE_CNT DE_LIN Rate 24 bit Rate 20 bit Hsync Vsync (sec) 640 x 480 60 800 525 640 480 1920 1600 6. 34921 E-06 0. 001429 640 x 480 72 832 520 640 480 1920 1600 6. 16371 E-06 0. 001068 640 x 480 75 840 500 640 480 1920 1600 6. 34921 E-06 0. 000533 800 x 600 60 1056 628 800 600 2400 2000 6. 43376 E-06 0. 000743 800 x 600 72 1040 666 800 600 2400 2000 4. 8125 E-06 0. 001376 800 x 600 75 1056 625 800 600 2400 2000 5. 17172 E-06 0. 000533 1024 x 768 60 1344 806 1024 768 3072 2560 4. 92339 E-06 0. 000786 1024 x 768 70 1328 806 1024 768 3072 2560 4. 05735 E-06 0. 000674 1024 x 768 75 1312 800 1024 768 3072 2560 3. 65854 E-06 0. 000533 1024 x 768 85 1376 808 1024 768 3072 2560 3. 72472 E-06 0. 000582 1280 x 1024 60 1708 1066 1280 1024 3840 3200 3. 91785 E-06 0. 000657 1280 x 1024 75 1708 1066 1280 1024 3840 3200 3. 13428 E-06 0. 000525 1280 x 1024 85 1728 1072 1280 1024 3840 3200 2. 84525 E-06 0. 000527 480 i 59. 94 1716 262/ 263 720 480 2160 1800 3. 6852 E-05 0. 002802/ 0. 002918 480 p 60 858 525 720 480 2160 1800 5. 10601 E-06 0. 001429 720 p 60 1650 750 1280 720 3840 3200 4. 98316 E-06 0. 000667 1080 i 30 2200 562/ 563 1920 1080 5760 4800 3. 77104 E-06 0. 000652/ 0. 000681 1080 p 30 2200 1125 1920 1080 5760 4800 3. 77104 E-06 0. 001333 1080 p 60 2200 1125 1920 1080 5760 4800 1. 88552 E-06 0. 000667 Submission 3 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Transmission in video signals • In general mode of video transmission systems, horizontal blanking interval and active video line come alternatively. • In aggregation mode, we aggregate numbers of horizontal blanking intervals (HBI) and active lines (AL). (Before combined AL) (After combined AL) Submission 4 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c FUCA MAP and Control Frame Format • Position of combined HBI • “ 0” : Before combined AL/ “ 1” : After combined AL • Attribute of HBI • “ 0” : No auxiliary data/ “ 1” : Auxiliary data • Maximum number of aggregated HBI : 8 Octets: 2 Next Total Frame Length FUCA MAP Format Submission 2 4 Sequence Number Fuca Map FUCA Control Frame Format 5 ETRI

January 2008 Submission doc. : IEEE 802. 15 -08 -0041 -00 -003 c 6 ETRI

January 2008 Submission doc. : IEEE 802. 15 -08 -0041 -00 -003 c 7 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Example of Aggregation Mode (1/4) • In case, there is no auxiliary data in any horizontal blanking intervals. • We can use combined HBI for transmitting uplink control/data. Pos : 0 Number of Aggregated Data : 5 HBI OA : E 1 -E 2 -E 3 -E 4 -E 5 Submission 8 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Example of Aggregation Mode (2/4) • In case, there is one horizontal blanking interval that has auxiliary data. • We can also use combined HBI for transmitting uplink control/data. Pos : 0 Number of Aggregated Data : 5 HBI OA : E 1 -E 2 -E 4 -E 5 -A 3 Submission 9 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Example of Aggregation Mode (3/4) • It is same to last slide but combined HBI comes after combined AL. • We can also use combined HBI for transmitting uplink control/data. Pos : 1 Number of Aggregated Data : 5 HBI OA : A 3 -E 1 -E 2 -E 4 -E 5 Submission 10 ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Example of Aggregation Mode (4/4) • In case, there are three horizontal blanking intervals that have auxiliary data. • So we can not use combined HBI for transmitting uplink control/data because that is too short. Pos : 0 Number of Aggregated Data : 5 HBI OA : E 1 -E 4 -A 2 -A 3 -A 5 Submission 11 In case of 1080 p ETRI

January 2008 doc. : IEEE 802. 15 -08 -0041 -00 -003 c Benefit of PHY Transmission Using Aggregation • Generally, PHY transmits MAC MPDU with Preamble. • If we do not aggregate auxiliary data together, we need to transmit 3 PHY frames as shown below. • If we do aggregate auxiliary data together, we transmit only one PHY frame as shown below. So the transmission efficiency is increased compared to the case above. Submission 12 ETRI