doc.: ieee 802.22-06-0117-00-0000 submission july 2006 sunghyun hwang, etrislide 1 [fractional bw...

July 2006

Sunghyun Hwang, ETRI

Slide 1

doc.: IEEE 802.22-06-0117-00-0000

Submission

[Fractional BW Usage for WRAN Systems]IEEE P802.22 Wireless RANs Date: 2006-07-17

Name Company Address Phone email Chang-Joo Kim ETRI Korea +82-42-860-1230 [email protected]

Myung-Sun Song ETRI Korea +82-42-860-5046 [email protected] Soon-Ik Jeon ETRI Korea +82-42-860-5947 [email protected]

Gwang-Zeen Ko ETRI Korea +82-42-860-4862 [email protected] Sung-Hyun Hwang ETRI Korea +82-42-860-1133 [email protected]

Hyuk-Je Kim ETRI Korea +82-42-860-6846 [email protected] Kwang-Seon Kim ETRI Korea +82-42-860-6683 [email protected] Sang-Won Kim ETRI Korea +82-42-860-4850 [email protected] Jung-Sun Um ETRI Korea +82-42-860-4844 [email protected] Bub-Joo Kang ETRI Korea +82-42-860-5446 [email protected]

Authors:

Notice: This document has been prepared to assist IEEE 802.22. 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 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 802.22.

Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures http://standards.ieee.org/guides/bylaws/sb-bylaws.pdf including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair Carl R. Stevenson as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.22 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at [email protected].

July 2006


Slide 2

doc.: IEEE 802.22-06-0117-00-0000

Submission

This presentation describes the fractional bandwidth operations in IEEE 802.22 WRAN systems. Here, we explain the concept and advantages of fractional bandwidth usage. We also provide several scenarios of possible application in WRAN systems. To realize the scheme we propose how we detect the fractional bandwidth mode. As a result, by using the fractional bandwidth operation, we will show how we protect the narrowband incumbent users more safely and quickly.

Abstract

July 2006


Slide 3

doc.: IEEE 802.22-06-0117-00-0000

Submission

What’s the Fractional BW Usage? (1)

• This scheme is proposed to support the bandwidth scalability as included in FRD

• A quotation from FRD

July 2006


Slide 4

doc.: IEEE 802.22-06-0117-00-0000

Submission

What’s the Fractional BW Usage? (2)• The fractional BW usage mode is to use fractionally vacant bandwidth of

a single channel where there is no any incumbent signal

• That is, we do not consider the concurrent fractional use of single channel with a narrow band incumbent user except during the channel moving just after an incumbent signal was detected

• The number of used sub-carriers in the fractionally used channel is proportional to the fractional bandwidth

Unused(6 MHz)

f

Narrowbandincumbent user

Fractional BW useof TV channel

Guardband

6 MHz

TVincumbent user

6 MHz

July 2006


Slide 5

doc.: IEEE 802.22-06-0117-00-0000

Submission

Why the Fractional BW Usage?• We can decrease the interference to adjacent

narrowband IUs (1st Scenario)– If the narrowband incumbent signal is located on the edge of

channel, it is very tough to meet the requirement of WRAN emission limit at FRD 15.1.7 (4.8 uV/m at 3 m in 120 kHz 4.8 uV/m at 3 m in 120 kHz bandwidth) bandwidth) in the first adjacent channel

– To meet the emission limit, we can not use the full subcarriers on the adjacent channel where WRAN is operating.

– Therefore we can use only the fraction of the adjacent channel

• We can increase the throughput with the fractional use of channel, otherwise waste the channel (2nd Scenario)

• We can decrease the interfering time with the narrow band IU during the channel switching by the quick evacuation of the subcarrier position of IU (3rd Scenario)

July 2006


Slide 6

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 1st Scenario of Possible Application

• To decrease the interference with the adjacent narrowband IU (concept)

– Refer to the 10.2.1.1 in FRD

– When the narrowband IU is appeared on the adjacent TV channel

– By using the sufficient guard band (see slide 12-19), we can avoid the interference with the narrowband IUs near the band edge and assure more safe operation of them

– It can be advantageous to narrowband incumbent users, such as wireless microphone

6 MHz 6 MHz

f


TVincumbent user

Fractional BW useof TV channel

Guardband

July 2006


Slide 7

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 1st Scenario of Possible Application

• Operational procedure to decrease the interference with the adjacent narrowband IUs1) Detect the narrowband IU

2) Is it located on the adjacent channel?

3) If YES, how much guard band does it need? The guard band is calculated considering the position of the narrowband IU on the adjacent channel

4) If it is necessary to evacuate subcarriers near IU spectrum to obtain sufficient guard band, use the fractional bandwidth mode

July 2006


Slide 8

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 2nd Scenario of Possible Application

• To increase the throughput (concept)– We can increase the throughput by using the fractional BW additionally,

– And we can make a larger pool of bandwidth available to each user

– If we use more than 5 MHz fractional BW, we can satisfy the minimum peak throughput of FRD (1.5 Mbps for DL, 384 kbps for UL)

– Like the whole BW usage mode, it is also applicable to normal PMP operation

Unused(6 MHz)4 MHz

Fractional use ofTV channel

f

6 MHz 6 MHz

TVincumbent user

Narrowbandincumbent users

GuardBand

July 2006


Slide 9

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 2nd Scenario of Possible Application

• Operational procedure to increase the throughput with a fraction of bandwidth1) Now we are using two contiguous TV channels with bonding or

aggregation

2) Detect the narrowband IU

3) Is it located on the adjacent channel?

4) If YES, how much guard band does it need? The guard band is calculated considering the position of the narrowband IU on the adjacent channel

5) Determine the available fractional bandwidth?

6) Use the available fractional bandwidth with adjacent whole single TV channel. In this case, it is possible to use both channel bonding and channel aggregation

July 2006


Slide 10

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 3rd Scenario of Possible Application

• To decrease the interference with the narrowband IU during the channel switching (concept)

– On appearing the narrowband IU, we will evacuate quickly subcarriers same as the spectrum occupied by the IU Fractional BW mode is activated

– By using the fractional BW, we can transmit the explicit channel switching information without interference with the IU

– Therefore, during the Channel Move Time(< 2 sec), we can significantly decrease the interference with IU

– It can be advantageous to narrowband incumbent users, such as wireless microphone

6 MHz 6 MHz6 MHz

f


TVincumbent user

Fractional BW usefor explicit

channel switching

Clear

TVincumbent user

July 2006


Slide 11

doc.: IEEE 802.22-06-0117-00-0000

Submission

The 3rd Scenario of Possible Application

• Operational procedure to shorten the interfering time with the narrowband IUs during the channel switching1) Detect the narrowband IU

2) Determine the position in the TV channel and bandwidth of detected IU

3) (Evacuate subcarriers to be necessary for sufficient guard band)

4) We can use the fractional bandwidth usage mode for control data transmission to move to a candidate channel.

5) If the explicit channel switching is successful, we will move to the candidate channel and clear the currently used TV channel for narrowband IU such as Part 74 devices

July 2006


Slide 12

doc.: IEEE 802.22-06-0117-00-0000

Submission

How much guard band is enough?• To calculate the required guard band for the fractional To calculate the required guard band for the fractional

BW operation, we assume the DTV spectrum mask as BW operation, we assume the DTV spectrum mask as WRAN spectrum maskWRAN spectrum mask

• From the requirement of WRAN emission limit at FRD 15.1.7, if WRAN operates on the first adjacent channel to wireless microphone, the WRAN emission limit on the first adjacent and beyond channel shall be lower than 4.8 uV/m at 3 m in 120 kHz bandwidth4.8 uV/m at 3 m in 120 kHz bandwidth– P/(4R2)=E2/ P=4(3)2*(4.8*10-6)2/(120=6.912*10-12 W

– WRAN output power P = 6.912*10-12 W over 120 kHz

-132.4 dBm/Hz or -81.6 dBm/120kHz or -75.4 dBm/500kHz

July 2006


Slide 13

doc.: IEEE 802.22-06-0117-00-0000

Submission

FCC DTV Out of Band Emission Mask

July 2006


Slide 14

doc.: IEEE 802.22-06-0117-00-0000

Submission

3m

CPE

4.8uV/m

WRAN Emission Limit @120kHzWRAN Emission Limit @120kHz

CPE

10m

20m

30m

PL1

PL2

PL3

-132.4 dBm/Hz = -75.4 dBm/500kHz-132.4 dBm/Hz = -75.4 dBm/500kHz

Emission Limit and Path Loss

July 2006


Slide 15

doc.: IEEE 802.22-06-0117-00-0000

Submission

Path Loss

Original Mask d = 0 mOriginal Mask d = 0 m

Path Loss Mask d = x mPath Loss Mask d = x m

0 m0 m x mx m

Emission LimitEmission Limit

WRAN Emission Mask with Path Loss

July 2006


Slide 16

doc.: IEEE 802.22-06-0117-00-0000

Submission

30

20

10

0

-10

-20

-30

-40

-50

0 1 2 3 4 5 6 12

-60

-70

7 8 9 10 11

25.5

-28.73

-75.4

1.37MHz1.37MHz

6.09MHz6.09MHz

PL=-54.27 [dB]PL=-54.27 [dB]

d = 0md = 0m

d = 20md = 20m

CPE EIRP = 4 W(36 dBm/5.6 MHz),CPE EIRP = 4 W(36 dBm/5.6 MHz),

fc = 617 MHz,fc = 617 MHz,

Resolution BW = 500 kHzResolution BW = 500 kHz

Required Guard Band from WRAN Mask

Total average CPE power without path loss: 36dBm/5.6MHz 25.5 dBm/500kHz

Total average CPE power with path loss of 20 m: 25.5dBm/500kHz–54.27 dB 28.7 dBm/500kHz

WRAN Emission Limit at FRD 15.1.7 : 4.8 uV/m at 3m in 120kHz RBW -75.4 dBm/500kHz

July 2006


Slide 17

doc.: IEEE 802.22-06-0117-00-0000

Submission

Calculation of Required Minimum Guard Band

• Requirement of WRAN Emission Limit at FRD 15.1.7 :– 4.8 uV/m at 3 m in 120 kHz bandwidth4.8 uV/m at 3 m in 120 kHz bandwidth

– -75.4 dBm/500kHz

• Attenuation Slope of WRAN mask :

– 11.5(f+3.6), where f is the frequency separation from the channel edge

• Minimum Required Guard Band :

– 36 dBm/5.6MHz – 11.5(f+3.6) = -75.4 dBm/500kHz

– f = (36+75.4)/11.5 – 3.6 [MHz]

• Total CPE power can be reduced by path loss as follows :

– Free Space Path Loss (Approximation) = -147.56+20*log(d)+20*log(f) [dB]

– Where, d is distance(m) and f is frequency(Hz)

July 2006


Slide 18

doc.: IEEE 802.22-06-0117-00-0000

Submission

Required Guard Band Vs. Distance & FrequencyPL=0; GB=6.09 MHzPL=0; GB=6.09 MHz

Distance

Free Space Path Loss [dB] Guard Band [MHz]

54 MHz

174 MHz

470 MHz

617 MHz

806 MHz

54 MHz

174 MHz

470 MHz

617 MHz

806 MHz

10m 27.09 37.25 45.88 48.25 50.57 3.73 2.85 2.10 1.89 1.69

15m 30.61 40.77 49.40 51.77 54.09 3.43 2.54 1.79 1.59 1.38

20m 33.11 43.27 51.90 54.27 56.59 3.21 2.32 1.57 1.37 1.17

25m 35.05 45.21 53.84 56.20 58.53 3.04 2.16 1.41 1.20 1.00

30m 36.63 46.79 55.42 57.79 60.11 2.90 2.02 1.27 1.06 0.86

Free Space PL = -147.56+20*log(d [m])+20*log(f [Hz]) [dB] GB = -3.6+ (111.4 – PL)/11.5 [MHz]

July 2006


Slide 19

doc.: IEEE 802.22-06-0117-00-0000

Submission

2 4

WirelessMicrophone

(200kHz)

1 2 3

Not used

1.37 1.37 6 MHz

2 4

WirelessMicrophone

(200kHz)

1 2 3

Not used

1.37 1.37

• Fractional BW Mode

• Conventional Mode

Advantages: Narrowband IU at the Edge

f=617 MHzd=20 m

*d : distance between CPE and wireless microphone

July 2006


Slide 20

doc.: IEEE 802.22-06-0117-00-0000

Submission

RF Filtering Issues in Fractional BW Operations

• Gerald’s Comments– At the output of the RF transmit chain, at least 30dB filtering

rejection is required

– Since the vacated portions of the TV channel would need to be adaptive in frequency, it is unlikely that such adaptive additional filtering will be realizable at low cost for consumer type CPEs

• ETRI’s Answers– The above problem is true if we use the fractional BW mode to

operate WRAN within the same channel with a narrowband IU.

– But the proposed fractional BW mode do not use the same channel with IU but the adjacent channel except control signal transmission for channel switching

– So the conventional full BW filtering can be used in the fractional BW operation

July 2006


Slide 21

doc.: IEEE 802.22-06-0117-00-0000

Submission

Power Derating in Fractional BW Usage

• As the Shure recommended, we will follow the PSD curve to decrease the interference to narrowband IU

• The PSD curve from the Shure comments to the FCC

Fractional BW

EIRP

30 kHz 300 kHz 3 MHz 6 MHz

4 W

400 mW

40 mW

July 2006


Slide 22

doc.: IEEE 802.22-06-0117-00-0000

Submission

How To Detect the Fractional BW Mode?• The fractional BW mode is identified by using a Preamble

• Total Number of Fractional BW Mode To Detect : 36

1 2 3 4 5 6 7 8

1

2

3

4

5

6

7

8

Start position of fractional BW mode

Fra

ctio

nal B

W

1

2

3

4

5

6

7

8

Fra

ctio

nal B

W r

eso

luti

on

Null

Null

Real B

W o

f 8

MH

z

Start positionof fractional BW mode

Fractional BWmode zone

Not applicable

July 2006


Slide 23

doc.: IEEE 802.22-06-0117-00-0000

Submission

Preamble Sequence for Fractional BW Usage (2K FFT)

Index Fractional BW Start Position PN Sequence (1680 bits)

0 1 0

0x251D994101EDA04D8BD0B8EA6FA20AE590C2CC199AB083C6AE61F091F2DD41D989EC164B1481D611BE9CEA0094AFE9DB56A4763F55B26E54EAB73ACD7D4BBA64C1421BC3EB9D67113A5FB9C529AADC9CAB1FB882905601778659CDB69AFCBADDF8B42314A7985B5F87C20692309D350454FF9326481683FADAE4711DD0CC5DACEDF7CD5DF1177D60EBA4DBE657F19F08189EFC6B5DE6C2CFDCD13195DE077586B8EE01E00B6468B10A53FAAC1DD846E2A01681980D444B6AD0D34C34EC9CFD9341507878EC9FBAE498F5A20614BDF3E4B22D

1 1 1

0x572B008CAE935937061963E9567C204CB881C66F6C70DC9316A4006F9CDF449C19E5EC29CCFC42786A82330FC7279F99F1DFCC4246B1234F792B623341EBA8DBDAC7FD337206F79ECC153683A184D9DA3A460683B79426E0DBCA16767E88C80F9AD350ABAEC257AA2EC18C741171DEF172E68321AF1804564D830E1522D7A22959F8F68F521E939B909615C209109EFDC9A0433D1F4D9DB1AE6449115DC648172846E0C18D1C89610085F27D886029EF1F8256A51504E1F21E70B77B0067B9FBF6BD0D6030BB4B1C70AD11957E4270B5658F

2 1 2

0x9D7B838B01289DA478424A99E6B5C35E7D6D79FCC9ADEFEE741BFBD48261B9A427AE8994EB230CF27D770B7CDD53A01821C63ADD01236D481BFEF0085FF21DF2044E054E91138A69C50843F180D78BEB289D8260058EEBDBF43E7CDDE879716A144C19AAF3E90709400712260E4066F862C14194D4CE678821EC8F544CC4D30B78A6A4A72FA483C21F5369EE489E401DDF5398696EF3E35E91E6197C6B1535B61F6EA65517340FA5201D27564CC23A6CAF4166E0B3FE7F4D455E2B34453BA699F9944094CABA9AA175338D7F0CDA12D4A3AD

3 1 3

0xBBF8D4EE09564B33B49FFA37179626165084481424D61EC7592A97D80A66FA6797B1A0C493987566D49A6B2786BC9706F8168264BD24F9A8BD86EEBC0211848DFB2B477E2CF3F2067B4797FDF50B4B6317598789569C18F69883FF74F8F55211D627A91EC477C2039A958EB87374321DBE2D4794EE2D7AA2FA22CC22FEF263F138D4D7935C24C66D30943149F0066C35DCA3D28485E72FCBE46264A5F318C7402122C0FDF2FB1D346D24BECE7DB1EABA81C929683BCA17314453C81DF7686E0B8211744DA8EBA7591266F729F995ABACBD81

4 1 4

0x3A13D1C743143CE5E66B0AC149147AA2E4624EF574EB4D49FC698483BFEB60FB07B286EDB255BC19C0AD0D53669AF9E41E7CF22795EAF0CDCB9F1EBAF6979B05A0373A3C7403A2ED75B51F0ED77DEFC7146BA683E9373AF256A9A8FA81A15DB1F391EDA47A0E2064E5B330E38CBD6D4BD540690880F0FCC9AC9930535F18960E12E09036B276258B119541E1735B627152091BA66A173431BD6ED9E660FD570C0C1452E13E4CA143086D60F8AE66EE4899A9DD7E989BF44A8A197091C43EAEACA12E13C50E8FB5ADCA1A8F492CDEF1A0AC2D

5 1 5

0x9D6E088D4BF521B816766CDD6DEC121DD3C2101F30B8479CADA2EDA38CC97B865D78BDDC1A50843DCC6547D9B4CE4EF1A3E9661C42648013DB35E2E69D7404D52DACA4886F5DB3A7618C6542815235BB6229FF77EBB2846008E2397626D06909FBF8DE913CFB9CE716CDC719E686F7593092DB4EFCA153A233B7B47347DD7913C97E5C07914B411BC9277B4CC25C75DD1D24FA639341EDC96FA683EDEE7B5411961D1DEB7C3BB1258CBB63DD25C3BD46EAD05DF6B28233C699CE94A50DCB0AF572D5122CDFCDEC143E679EDC0FEBB295C6A5

6 1 6

0xF3E5596544A8D30FF9DAA3AB6CBE5EC769CAB9F0E2F9FF3D1D27619481C8A1A3EC4286F8207F1C69816CC13E995C38C1E4D62AD594B2B02CDEE05A0F1BD18BCA09FC2B1DC72B54FD6C5B756181D012F5B24E124A11518044D316CA0B61D0650B881457E42ABCAB9A8BA8A14634490C53D314826169D54F761B99B2A872B35E653B980A5B4823F260FD6264CBA397F4C92847793A6D3F1DD1A78A21F75F7C46F8228A4574318F4850A2899FE3EDCAEC69C0D8F7933C8DEB6565D826E7E61A3DA46BD9072EE5C09D788A0D50ABE2E3D322ABD6

7 1 7

0xFCAEC6B1C7027793A48849AD347AE875408955E7F2AAC5FF9904A2D0D904C931795A1BDA94D9DCABA8BA77152A69B89F008680F34505343E591F3EB3CF103BF97DA73BC87FC96520349D50632F81BB06473486D4A89AF6EAA0CB758CC334D02E08A507AC59E240033712059633C201EA167347AA1A38FBF47F198729D782C8B11A45AE6543146F43C14875BE372D9B1B6C63C4557C0F347AC51755BCDB0AF3A1A48610033C7FC1F1D30FB0BB4AA178CA3AF50CF6EDFFB05E92A7FD24ED9A72FEB5683E9615F4770B7B78A69E5C5E88C69E37

8 2 0

0x1F6C5C088F9FF6E85171FF5434B95DEB270F1C926F738B8167566D24EC3F7A1BEDC7CC3B913EC2DB60B4103739C07C10DB5D036A9B48223CE4037E148205DD8177084A97E739255E5BCC2033714513E64A80095A0B8A51992C869E2D7C39B7B7CC3EC81C7FA21F83F1C94069FC38315D84980E64CD2AF796300DBD6F99CA197FEC4945BA5B78705961AB6EA8CB77E6757A960397B32624350E5ADBCA0AC801E8C729C1727BAC69C19E738C10DD24133F3B7907F3FB80D875989C094FBE2372F26E0E4C63DD4CD9D98520BAB1233EC69AC741

9 2 1

0x1A6988580366EDA426EDA5EC69AEC0B9D77D733AC09338B2E66BCBA5F1960FEE2C08477CB6F80DB152B4EF01E7FBFD5961A16C954EFEB629124F9789B34411713ED05A0EF02CD9939DA46C95EDF9E5DEFA0D985E44FBFF754D4CB6BBFD82EFE94EB1AF0DB1F1805AC8BE2D856A98993993730884C1A8F3B78762295ABD7279366FCC3959FA77E20602E121D26ED907793A13CA16C5E7C3DEC1B2CE66F513DD788EF01513B99F0F984B4D788DEABA42AED1EBB0F750D74EDB091BB7C0C446ED90AC4D353A0058F81F83C203A5FD4D47B877CD

July 2006


Slide 24

doc.: IEEE 802.22-06-0117-00-0000

Submission



10 2 2

0xFA54537894CC41ADE3960B29C89DCAC398CEDFB2AB6BCB61D02B877208A71DD8760FFCABA593996852CAE9AE7E7FF7633EAF24CD2AAC1229E10D9847837CC20C46270E8F824FEF3C055C3DC5D036242B27FD016955C3681A454D31BEDB36755949AC96042AD0353A0B5A1A9C0CE35F0E44A955C75ADFBD24EDFA40D6EDD539C09F8EB52A8D478A5144A66D05F4758A19B4B230B61BB01258C805E79FBA5AEB6029CE5CE2ACA3EE91C06F581FA8FCC44D77399256978766A5E67C16FA43C3AD29067B8A5B85E4320B9095BACA26480D9B6D1C

11 2 3

0x8C88EE32C92B5741BBF6A7026E0C268520653A0A948EA318A316508A4602A75DED6AF1D33BCB0B83E8A3C7372E0779FC5C10AA16063AF909031455A18EA324FBD5FECF499D83F3229CF1A140FD3C2FD1007DD6F6681F8257FBB325ADD55CE406551458A50E652E2FC7E1474FBC8A09033B7BCDCCD80D5F027A03A09E2B3FF77F4CEABCE57E70AC898A81B8138AF236A2FE0A8E8848257E2B60E4F765714B4E44CA52DC1BEDA55E50B4B3E5DC6793A6BE375A0C18C766D1A0ED770911C560D877CF7BB6175CF262847597DC8B344D5A18F83C

12 2 4

0x449E35C07883E2ABD6A22ABFA5184B255C07DA69AA16CD1B8F0E1F2041EF30CF58F9B35461C47E707F288D27B5054F80CEDD570935058C410D77FA2C8B13FFF317393FF18E6171F6C374EFB81960DA8DEA88D3C3F461D30847C6D45208A446C8A16FBBC7FE7C0B0EE2B55172B038EC3BD2286FA5062AA1704BF9CEA1C893144F066A47C6B2E41DD7DCEBB256AA5D767A95ADEAA16B41F78A0B02B719CCFF7957175AD1DFA8B9B63171E62353C7E0866B030874D6F3C5D3459600AEAA13B84510F32F6B10E2FBC63DE2D7927938D02EFD4D48

13 2 5

0x1D25DEB62791EDE39655AEDEA97A9AEAF47B6F9B6EE91EAD11C8EC3D4D20427DA69CFD04029EFEAC8C397B628486FC8A9CF02F988C3705588F31D3E7E40402874E2D6FB0743DCB4982368C43E6321A0F34AD23F23226C8F80CC21D0E12899D77E5E704C85E8C63DC875DE091DF810369DA647ABA5FC7457E897D9B83B7A0E44C8BCBFC4ECF7DC7458B9C874D4070B7A8705404EE04088ED915425C65E368F50621C72822B7F0E5929E056265380027DD267DD1703FEB8319904F50B596D1C3A6D6EDA7622633CFC5A1989FEBA74261E7CAA0

14 2 6

0xF270F26F424E2A669761D1EC6B2A8A3C59001C0874EDB343F0CEAD2557D78E0B56CC2C95DD49B4B6227B8397CE843DA55F1B9A8EE5EAC428A50F1BAA18BB3180FD86EE5C23395D10F0E2CCE4EDD3F03698849FA510CDE5169CAC10DF9575E32FD7AD26C3341EE5A211C69DE3C708A2E113591B6E1794F43DD7B7AC96EC04A5F6F521F6ED11C88C5E6608D4827D1263C5E39C2FC8C931137D452FAF0EEF9865D765123D97B86822230DA6A3C3DD0133C3F52CBAD346C441E706F53A28BEF235E11A510CF31BEDD821E8A2FAA509E5F3E94B2A

15 3 0

0xCC8F8F3B6F7A0B374BD25741F524010D52F03A478D49061CC73800AEC229D48455DD93989C1653C7D53EAC75C3714B263E9E1396228A78D21C5DB24D9092B05C66CB52DAC8FCEEC4F53BCC8E91F6B99D83EDC8CBE5E41C06F82230C16D25DF710D6BECE1F3EAAC2F9CDAA78D7E957A716EDE38D5987714A75BA9793A3AD032032CAD32FE3D02CDF7BB194D504A5E8FB1C16063C45A144F9535B18D8816A5D8F3C38F53DF7743122B510AAF1A264FC650BB936AA80BFABEF1977B4CBCF1A3C150F0032FA6B0AEBAAE8F9CDCC8004A516B1C67

16 3 1

0x2B52DCE97FBA80D6D6C5DBCBFE0AA538C653F82295AD33C0C44BEA7E2FC404EDA8F19CF174E0F0E22CC3C50B6D21D10E29E43FDFB4FA6FA477B4D4DB319A7404E0856B32BC63E88F3DA7AE6510A68476575B86A516B4121AF602CC4285DD7BCCE4EE399D485367DD1A6F96F81798BF8F30B7DC94CBDB4D312036B4E12D6EE936B33D072116A15DCDB10D9DA550D77149E4F821BDB35F0E09254EABAA086BEE404D61D4CF285CDA6E1490847ADD83BAA4541E86EFEE314763E64CA18D26C66BFC927AB0957D75DE9032F98A699D9D7AA19F1A

17 3 2

0xE94A5D80177E712FA798988E6F49B2789B8516FA6A742B568F81A013C25E850B4CCE1F3C5F2AC8E7ABBD4DB4FA489E5C759EE1DD7DF9C08983C3F6E8809D46D1AE7C15452D77CA95AF0B35470CD735155FD0001DF71E4092872E8029D68EC38D00435DCC7366A828B3826037961897B3483C72CA19E67B9F9AA15DC7B41F1B2E7123D99040063090B513DF84A70AB54631B118D5A15E6172AC5F7DD308521E94E14DA8D1A44794EDD7DD913E4F8EAEAF285F014CC168234ABD15C13CE426ECFF607FBA8F8029B410E8B096566FB352FD1F26

18 3 3

0x3C116913AFE7DE15770347AB763FDEDB008BE3BD9E37F8BCDEDB0588C1301507AC54877FF779EE2D513621C2DB655C51A8F4CDE2343418E16ABD23F00B481A116EE32D7DFBE10D607FD7939AEB60D9FF74CA3EA8A5173620280DD81801461F5464E05A1BC94E3BBBEFC57CF3C65055B794FD172FD1EE64983AB905D2C22813A0AC5A0E5B537059409321EC0D6D26E0A8F68E8738C88B823990C3B83D4EE126262911394DA89786ED9AF9E3B9DFE16BB2AC8C8EF28B1DBEE4283AE339869E38C4F846ECDFC894B2B5C41F5115FC81F5E585E7

19 3 4

0xFC5DF994EAC8040FA5D698214A9DFBD82603A486ED9541A25713E4F69E42B1AFF25932E125C52341EF2566985B7E41D7E7D84B4D18BF0282D4A3986027B821D57F0736235FEB86E0AF15F0E67B88EA23205EADFA52E116E0D8F317A0CE57E3587346064A992A2BECE7B654289ABCB6ECFF65DA8B9B4E5D9B64D541D56510EA480E369146D1931455B7E87430B809D603363EC302D4B3E8B3676846EF0B01139611C7E7381925402C0DCC5F3CE68039870598765E2B62B528F19C07DFB10CAF50AA0AF9FF61D0BF50DB41F52F032FDF785A93

July 2006


Slide 25

doc.: IEEE 802.22-06-0117-00-0000

Submission



20 3 5

0xE590622AD61B126292A466306F78BCEDC5ABB7B572E12F6757E630E8C8C7374020B7B81B2B5BABD9DA6E1A9E72FD54636D4C0DB378E00C3F83936BCAF5739B9E15C31E15C208CAF1EC0DCD05C8D06489C0B252DAB13B6F977B24A6D5658C669DD6A46259AD1261BABA817FA5521F1A40EF1EB61A3DF44AA12F9CD0FA1802D92D627AC6A6CB8A801552EB316E2FCC38B9C85F1A73FD2AAC6CADF819480EE6B26EA926292C3C5F2510A73AF2404FD6DEC37D767C0600AE95B9E73A52CF48262341BCB78CBBE09152CDC66EB24CA24E0A7FED71

21 4 0

0xDEB2569F05B6EC50AA5FC5C41BD58A3DED84D830061CA07881714822BEDB19624088EFEDFD55AC5CE11995D08BFA13985E66033D310B567750CF2254F9C91038A086CC986C95374E37FC983872C177D9CE718196F49CB74B2E365FF3AC68C1E320AEDBB062877E048DF8EF0EF03897FF3E95436E3EDEE404FBC7CFF0E5B94F849FEF3F26EF1980B0E22D7941F541710ABCF34792FFB1DBA2D8817369A69A970A0D49E509E44D6D51367C46D1710C18FB2A6A8F2337369E36A3646A30EE2D9B658BCDCE596013F6C899E366DF856789C0A70A

22 4 1

0x1A12F75C0C9F8E61A455BE516AA50779FBF773995A23FB74CA3A0064B57B34B3E97E4D2346ED789621F60427F4CB934F6B010DA179646D3F61021202AD1BBFA6FB381B9B4A2152D5E2E5D29D49D51F3F1F791F6A538ACE124B27AC5150914AA2405E61A41A394B4EF54027B55AC5A957054FA8D408963F1F68B9CC41DFFBD4D7E8D24D6F953733EF3C0A037E369B33994F81C8DF6986BE35D9A954D3083B6E15C3C3A1BBEC1B2A9AC72057D9DD55DCF4CC11608C955C2D858DF674060D61F69DE2128CB9FDD3207E94A432E43FE564788D2E

23 4 2

0x8EDA9C07ABED84B01AEADD7B9E2E44CDEE57DA71167BB595A4816D6A0C16908824C94FA8187FBED84860586B35E8F9D6C8A762042B9109E38DDF46D4A2ECE74F5169CD1DA53A3C5DFD87AF30DCBBD25C3988C67C2FD1A09EFEDEFA1448DC617406AB0688210EFD3F294FB1FA81C81D3F211AE4CA224A8BB7E66F6A49FEE64E06318E0AC8BC0CF18EDCB89E9926EE8C70904EDEFC35DCB82D55A1A453A2285FF5E402D9EE4623493B07B2261EDA3D4E1E96237314478829005B84AA425684B3522E2754F8D063C344C97E89789E9534291499

24 4 3

0xE412585CCE50D9085B2709095A1BD0FEAAE869DCA1BB02CBA8C740277D9109B01FF4795AC5FEDE2EE8D1CBA734322866CBBD016FB290C3C982FB02E20967968816BC9871F0095AF520708D6F62B7E87F9878A81B07C10A593805C3B6C89A99E2C869B7B27E716D6D32044D5FC398303A3F174FE0AE60D999A8F484B3DA3A24FD46FBD62C3F46E876016E0D6977E7FE95929CE4EE897C208BD4D843DA2037369A8E63F3AF3479FA319ABCDD9D6E935492B1F69905A7D5FD0FCB82122AC992CFF792CF205B7C19939DEFE09BF9A9AC2130AA46

25 4 4

0x4E4619AC52338D30E083955AE0E651F15C200716A38A0FFA797F262285804F7AF1A0CDD02E09FBB4BE15B48F7786EB19972FD5704B38EAE8461EE7065060BF84A424B5718180442D9AC1171197C73115C147E648697880CC12D6EC47B3F2FA7366D0E06F6C98486C66A6CD014DAA52070B883B6D0F69F285FEB823E5AD36E14827A66FCADD5207904194A65D6A2E2EDE44E2D3FF3DFB1F23D8C3BEE10E0AA201E8A51083B6BC92B93CBBD3171F53C57A8C66BEEFE12E07B7C2F78C59F6802FA0A8BD15A926C8E7A715FC433F4B29381CD313

26 5 0

0xDD4B1D03BA20AC449E2F66A7683477FF6D3C2E65088A0E66F5B3FE9056821AE93F05C079397E94CAF2636D6F7B9E455AE92D9DB4D543F6E9FCA539A94FEE60D9E42C0B9073A18C6A8AF3DBD83AEC13DEB77B93A47CF1EE9535E4EB63E320C5E1DCA1CC5878BA832365F1D0E3C410E08BC9261035DF74D46BB29124CF63461A23088205C239B77905935C5D9F2929CC521E4E1477FDECDA6A72AAF4CB9E427D8F86D1C5DCB49B7F01F51461EC3928A742B7C4905AE63ADF7285213C699433D003388D0D890B537336AA49ECDA150B825B93A6

27 5 1

0xA3DF9B7DD4B3DBF50AB8450933B13E97DBD61D00778492CCFE7ABCC47B9DB1E63DF50B85E71E653650A8D2B5A478761D21C5EB838BFBCDBC88BB1E6254F914944FCC3683EAA232D52E3A1A45156802E10E6473FB9D9B4C19A99D4CE64D7DC99ED7353C65FC4F52E1826D2DCB8571C12252A5D759AF55FEC43120255E341CA206F74EFE3D1E15B64A5E41EB26F4B4D3C13E88F78BB038F3EB5155D9AC3BD3DDEB9FF97ADA2E055C10B1C68567621039DC911BD1A3D0343B60F72B58EF21C35D1DBD56B26D4E2E36449BECDA9DE085C1457B30

28 5 2

0x87A0F05AC743259282F826DD0FBD6353C6D46D5064E50DB4FA986D34AD0CEC06E8821EA99592CABB88F52B1005BA80F284318CBCD4D3F61DC588E9FBBD4FD58E145A3C11A83FF76449D83F6D4E2434321E64A930883E66287C5D74EC2FD045961BF76AA2FD49AACFC59032E2CAEB6F23738BD6EE7FF75DD3DE180FF6C5DD3C50CE89866C85C0E5DB1D4E4481991F22A6838802A5B92DCB300BA8992ABE39BABB4C00C2406194977920D05649ACA15CD96F6A3E9636A0C12EE32D2277EAF1A0B8855DFD4D80D6D1C7FE48773AF2901DBE0631

29 5 3

0x78AFF7904ECDA788CBFD5A172D55899E2763E37592B7879587458BFC662568EDA2E2FBEE430E16D8529C0DAA31A449B561A39871E948DBC8A67967B6264C957FEB3E42A8DEF0500DF954039ABC94D4B2A91C71EBA98BFBEFC5C677DD7C058EE634B4CDB1E1734507A0464CE7CF262A93F1AEADB2FF6FD6ECF24CDA514B7F31427B52AA367BA716064541C8A259683C6A39592CE5CDE37CDE1FDC8042907AA183C22ABB188C8C92DBFA7588BA6A3C18168F3EDF77220AEE954CA569916D26EBAA180B006815F3E995AEC29B3F02B1A0A7D53B

July 2006


Slide 26

doc.: IEEE 802.22-06-0117-00-0000

Submission



30 6 0

0xD565FEC11A428787964CC174E0A66E16A705341BFB345149E12122E7032E3A521EC1513A02D4B2820655AC73A197B2498210DCC5C9B913E97B61C8AF228A8E939A8A3C44B64BFCB7B9DC0F032D6E16A6B087FA3F5113C592481EE7181BCBE2FC6AA0AE0F24A72504BFAFE8457419791C116CAF3BB662868568289C22B0E1448F6D34875B6EE97E8BF9E0592877AADCBCC59EDCE8D5965680CB9FC8DD21EDA63BB324F7596300B61C769E41AC45204D74BD3E8036B0AF15B561647C2A6CDE18004C72EFF8230C0DD53699B1D1EE8CAE66F84A

31 6 1

0xBB26559EE4045BA6A72853A4880F292D5E38BFED53B83902B8A732CD1E6166A46EB7C772B27B78455AC7155FF8264936542905B4A9B480D8261F52E39E96287BA8F9F33B8F0CE941930792FF6767ACBCD1AC1760FEEA1A1B2B283DFE0CE32C9F69DCEADA6CC69CBB54F9DA65E5C2429FD6E0E5015238F7ABA7E2E3EE8A6A7431A1509D6E47A99372AC8CDEC063452CDF52B57D77B5A007A8BB4E44B407FAF02071761BC722A5CDA66CA0AD11EFF2588C652CD1D318316B03364A706F84B4CE8CB74D55150DDB4A38B28537366BC8C897FF43

32 6 2

0xF01479FB02CB48E8680F0F96D03585B65948E61A1B3680FC8C41F7B77C0F010CDA3AEACFECF0E2381B849AA2256CEBCF1961DF821E92D514AD3171D072D49A668F455BCC1983F2289AEF24C7CDE0B77AA45FC714655BB1DD79061B01AC17BA72F036CAF28A739ABAD32FBE16A8D11BD6FB32CEDEF072153710C1A46C29A6522E2C0C39313EC0BAEDD854568DC72FF6D30C0BB4A2CDF5F04373513CF1FAA3707C13B7B7AA258A50C1986FEE2E29DB5872D9A9BAAFDEE652E0A0D6D49EFD1D166BC647353B50A27E36235E85D8DEE442C2713B

33 7 0

0xBFD632344B3E99407A6544D5430C44CDB1F7DD26236D6A233CBCC76AA3A3D5A4B316D9E0AC2D3D802055DE0AF83E8D283DCB9E085F258CEDD1B8F24D9B35F3F1C78FB40894CEBDB4C66EAB9C23108178C8C89258028E597D86EE618E1A68DD24C911D27E130FE7CE7AA1BC8BD6A5509D52EFEAF43D99E1013A2D232B004D824CDBCC435109E3EDBE2EFC10E710CAEBA8EC2F741EFF45456BEE9629368EB3F349FC91F7928767AE82E171B791D29131987599428538A263AB902762AF83DA2E2C0D9FEE4F8C8D2B4C932091B81B09426D1D2B

34 7 1

0x5359F9905DDF52E2EE74009315E32CB6195A085363EB55E7CF4CDA121F27B4D7B89B413FF3E913B6BDA7130DD7904BF697B21BCB766016D8302E22DCB7C75BAC4F3A007063E8D4B4CF479E0855236A505898A6D544D9D6E2E47CF038194CF0AA2A4656629FBCA3DA1545A0B49D9A97E35DCBB89FDD28A515DB28463538A6A5B258AF23E58675622AAEAF490291E7C49FA56A41EB325C7372063113D321F55AF3BA75881A481430848A675A006029F065206861E8426541E883B87712D61A0D6D6EA964EFC6A81E169A9CF291FB402B63FEC2

35 8 0

0xF9972D541E87459C52034624C0E0563AB7560F01EAC20C2E11D2404D557B0F8A27D6C338FA5F49DDB5957123729D8138A27F035FC6A6A21EB7C4513E9FBD64BFCEC735F1D630907B9FC868F7346300940338D283A1958B6BD4483DF5D827FC41EB59629FB14B1B7600AD29B1F452C15DFC936DAC8CBCB825897DD4A210ABD7309F8D5A239B7FE9EFF822A650C47AC6736D9FB29A65FD284CB54337336858F69DCB510D8B84CC0BB56849EFD483BC0E06544CC37E5E66EBC168BB55BABE2E68478ED77CD96C435FE85F01F24D51169AF7C39A

July 2006


Slide 27

doc.: IEEE 802.22-06-0117-00-0000

Submission

Flow Diagram of Fractional BW Mode Detection

CPE Power OnFractional BW Mode

DetectionUsing Preamble

Decoding SuperframeControl Header (SCH)

Fractional BWUsage Mode

Decoding FrameSynchronization

Superframe PreambleStart Position Detection

Signal Detection &Automatic Gain Control

Channel Bonding

Information

Channel Estimation

July 2006


Slide 28

doc.: IEEE 802.22-06-0117-00-0000

Submission

Mode Detection Procedure Between Superframes

Yes

No

CPE power ON

In the next superframe, confirm the previous Fractional_BW_Mode

(Correlation with previous superframe preamble

sequences)

If the Correlation_Out is greater than Threshold

Yes

No

In the first superframe, searchthe initial Fractional_BW_Mode

(Correlation with allsuperframe preamble

sequences)

Detection of initial Fractional_BW_Mode is

completed!

If the Correlation_Out is greater than Threshold

Present Fractional_BW_Mode is equal to the previous one!

July 2006


Slide 29

doc.: IEEE 802.22-06-0117-00-0000

Submission

Mode Detection Example Between Superframes

• Example:

TransmittedSuperframe

Preamble Index

CorrelatedSuperframe

Preamble Index

DetectedSuperframe

Preamble Index

0 0 . . . 0 17 17 . . . 17 31 31 . . . 31 25 25 . . .

All 0 . . . 0 0 17 . . . 17 17 31 . . . 31 31 25 . . .

0 0 . . . 0 17 17 . . . 17 31 31 . . . 31 25 25 . . .

The Correlation_Out is less than the Threshold

Search all Fractional_BW_Mode again

Fractional_BW_Mode is changed

doc.: ieee 802.22-06-0117-00-0000 submission july 2006 sunghyun hwang, etrislide 1 [fractional bw...

Documents

fractional use of channel

fractional bandwidth

adjacent channel

statement ieee standards

fractional bandwidth

wran systems ieee p802

edge of channel

sunghyun hwang