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Definition of NI Information in SFH SP3 IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-09/1741 Date Submitted: 2009-08-27.

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Presentation on theme: "Definition of NI Information in SFH SP3 IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-09/1741 Date Submitted: 2009-08-27."— Presentation transcript:

1 Definition of NI Information in SFH SP3 IEEE 802.16 Presentation Submission Template (Rev. 9) Document Number: IEEE S802.16m-09/1741 Date Submitted: 2009-08-27 Source: Rongzhen Yang, Hujun Yin, E-mail: Rongzhen.Yang@intel.comRongzhen.Yang@intel.com Apostolos Papathanassiou Intel Corporation Venue:. IEEE 802.16m-09/0028r1: “802.16m/D1 letter ballot document” Target topic: P802.16M/D1 - 15.3.6.5.3.2 Purpose: The definition of NI information in SFH SP3 to support 16m uplink power control. Notice: This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16. Patent Policy: The contributor is familiar with the IEEE-SA Patent Policy and Procedures: and.http://standards.ieee.org/guides/bylaws/sect6-7.html#6http://standards.ieee.org/guides/opman/sect6.html#6.3 Further information is located at and.http://standards.ieee.org/board/pat/pat-material.htmlhttp://standards.ieee.org/board/pat

2 Introduction NI information broadcasted by ABS plays the key role for 16m/16e uplink open-loop power control: NI Design Target for 16m: –Fixed Length: Legacy variable length design is not preferred for SFH broadcast. –16e 80 bits information needs to be reduced for SFH broadcast. Target: 8 bits ~ 16 bits –Flexibility: fixed/variable broadcast period for different Regions

3 Control Channel NI Information Analysis for Broadcast Bandwidth Request Channels Feedback Channels –HARQ Feedback Channels –Fast Feedback Channels Primary Secondary –Analog Feedback Channels Sounding Channels Initial Ranging Channel Don’t require NI for its own power control of initial ranging Mixed in FP with data, don’t require Independent NI information Independent NI information is required

4 FP NI: Mixed with Data and Control Channel Maximum FP Number: 4 NI Value Range: –16e: -150 dBm to -22.5 dBm (IoT: -16.3892~111.1108) –16m: 0~63.5 is enough for real usage NI Value Step: –16e: 0.5 dB step –16m: same step is kept NI Broadcast Period: what’s the suitable period? The evaluation is performed: –In eITU 3km/h, 30km/h, 120km/h scenarios, NI update period comparison: 1 frame vs. 50 frames.

5 NI Value Range Discussion IoT Value Range: 0~63.5 is enough for real usage NI Value Broadcast: IoT value, instead of absolute power, to be broadcasted AMS calculate the absolute NI value (per subcarrier) by: Here is the thermal noise power density is the bandwidth of subcarrier

6 NI Broadcast Period Evaluation NI Broadcast Period Evaluation: –1 frame vs. 50 frames for extreme comparison –eITU 3 km/h, 30 km/h and 120 km/h The evaluation results show: NI period 1 frame vs. 50 frames, the performance difference for different speed is slight eITU PedB 3km/h eITU VehA 30km/heITU VehA 120km/h

7 NI Broadcast Information Design 7 bits NI value to express 0~63.5 dB IoT with 0.5 dB step; 10 bits total information included in S-SFH SP3 for broadcast; Broadcast Period: (80ms period assumed for S-SFH SP3) –Minimum Updated Period of one NI: 16 frames (80 ms) –Minimum Updated Period for all NI value: 80 frames (400 ms) 10 bits Type ValueNI Type 0b 000FP0 NI 0b 001FP1 NI 0b 010FP2 NI 0b 011FP3 NI 0b 100Sounding NI 0b 101(reserved) 0b 110(reserved) 0b 111(reserved) 7 bits IoT value

8 NI Broadcast Example By using the flexibility of NI Type Field NI Broadcast Strategy is implemented inside of ABS, here two simple strategies are provided as examples : –Equal NI Broadcast Period: each NI will be broadcasted one by one sequentially ( 16 frames / 4 superframes is assumed for one SP3 IE broadcast) If 4 FPs + Sounding NI, the period of each NI is 5 x 16 = 80 frames If 1 FPs + Sounding NI, the period of each NI is 2 x 16 = 32 frames –Maximum D-value First: the NI having maximum difference between its current value and previously broadcasted value is broadcasted

9 Proposed Text [Note to Editor: Suggested Remedy - Replace one line of Table 676 in 15.3.6.5.3.2 in page 322 as follows] ------------------------------------------------------------- -------------------------------------------------------------- SyntaxSize(bit)Notes ……… NI Information for UL Power Control103 MSB value specify the NI type: 0b000: FP0 NI 0b001: FP1 NI 0b010: FP2 NI 0b011: FP3 NI 0b100: sounding NI 0b101: reserved 0b110: reserved 0b111: reserved 7 LSB value specify the NI value in the range of 0~63.5 dB IoT with 0.5 dB step ………

10

11 16e UL Interference and Noise Level Extended IE Format

12 3km/h

13 Performance comparison

14 Throughput performance Gamma Values Sector throughput (in Mbps)Cell-edge throughput (in Kbps) 1 frame50 frames1 frame50 frames 02.78242.7954249.8821249.1918 0.23.29973.2786249.8087247.5561 0.43.85323.8988245.7588248.3841 0.64.25854.283243.6457243.4676 0.84.68634.6295199.1611222.9262 1.04.86254.8119147.1439174.8764

15 30km/h

16 Performance comparison

17 Throughput performance Gamma Values Sector throughput (in Mbps)Cell-edge throughput (in Kbps) 1 frame50 frames1 frame50 frames 02.23942.2704188.4764188.2928 0.22.65712.6781188.4911189.3502 0.43.05873.063188.0101188.2928 0.63.44833.376185.9411184.3934 0.83.69743.666165.0619158.0673 1.03.99413.9063125.848126.6814

18 120km/h

19 Performance comparison

20 Throughput performance Gamma Values Sector throughput (in Mbps)Cell-edge throughput (in Kbps) 1 frame50 frames1 frame50 frames 02.39912.4287204.1656207.1067 0.22.80962.7971207.8924206.7982 0.43.23183.2573204.9367205.7628 0.63.53323.5562195.5224202.8309 0.83.83073.8378160.6668164.423 1.04.10244.0329124.1406136.6153

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