11 12 0791-03-00ai Reducing Overhead in Active Scanning

8/19/2019 11 12 0791-03-00ai Reducing Overhead in Active Scanning

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doc.: IEEE 802.11-12/0791r3

Submission

July 2012

Yunsong Yang, HuaweiSlide 1

Reducing Overhead in c!ive "canning#a!e: 2012-07-06

u!hor$:

%a&e ''ilia!ion$ ddre$$ (hone e&ail

Yunsong YangHuawei Technologies

Co., LTD.1010 Telesis C!. S!e 16",San Diego, C# $2121

%ang%unsong&huawei.com

Young Hoon 'won

(higang )ong

'a!suo Yuno*i 'DD+ )DLaboa!oies

-10-10 +idabashi,Chi%oda-*u, To*%o, /aan

1 0-67-621 %uno*i&*ddilabs.3

4iwon 5a* and 'iseon)%u

L4

mailto:[email protected]:[email protected]


2/23

doc.: IEEE 802.11-12/0791r3

Submission

July 2012

Yunsong Yang, HuaweiSlide 2

)$!rac!

*hi$ docu&en! de$cri)e$ a !echnical +ro+o$al 'or *,ai. In

!hi$ +ro+o$al &e!hod$ are +rovided !o reduce $ignaling

overhead 'or ac!ive $canning during ( di$covery.

Rela!ed $ec!ion$ o' !he "# 12/011r8

– 6. as! ne!wo* discoe%

• 6.1 #c!ie scanning


3/23

doc.: IEEE 802.11-12/0791r3

Submission

July 2012

Yunsong Yang, HuaweiSlide

on'or&ance / *,ai (R

on'or&ance 4ue$!ion Re$+on$e

Does !he oosal degade !he secui!% o88eed b% )obus! Secui!% 9e!wo*#ssocia!ion :)S9#; alead% de8ined in 02.11<

9o

Does !he oosal change !he =#C S#5 in!e8ace< 9o

Does !he oosal e>uie o in!oduce a change !o !he 02.1 achi!ec!ue< 9o

Does !he oosal in!oduce a change in !he channel access mechanism< 9o

Does !he oosal in!oduce a change in !he 5HY< 9o

?hich o8 !he 8ollowing lin* se!-u hases is addessed b% !he oosal


4/23

doc.: IEEE 802.11-12/0791r3

Submission

July 2012

Yunsong Yang, Huawei

5o!iva!ion• E6ce$$ive air-!i&e occu+ancy ha$ )een $een a$ a &aor dra)ac 'or

u$ing ac!ive $canning in a high-den$i!y i-i device environ&en! $uch a$

in !he 'a&ou$ *oyo !rain $!a!ion $cenario ;1 2


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


once+! 1 > "i&+li'ied (ro)e Re=ue$! )y

Re'erencing !o a Received (ro)e Re=ue$! 1

• #ue !o (ro)e #elay "5/# and rando& )aco'' &echani$& e!c. an "*

e.g. "*2 &ay receive o!her "*$? (ro)e Re=ue$!$ hile delaying !he

!ran$&i$$ion o' i!$ regular (ro)e Re=ue$!.

• *hen "*2 co&+are$ !he in'or&a!ion in !he received (ro)e Re=ue$!$ !o !he

in'or&a!ion !ha! i! i$he$ !o re=ue$! !o iden!i'y a (ro)e Re=ue$! !ha! i! can u$ea$ a re'erence.

• *hen "*2 $end$ a $i&+li'ied (ro)e Re=ue$! hich incor+ora!e$ !he (ro)e

Re=ue$! received 'ro& ano!her "* e.g. "*1 )y re'erencing !o !ha! (ro)e

Re=ue$! !o !he (.

– The simli8ied 5obe )e>ues! includes a 5obe )e>ues! )e8eence ield o +B,

which coies, e.g. !he Souce #ddess in !he eceied 5obe )e>ues!, as !he

e8eence in8oma!ion. The !age! eciien!:s; o8 !he Simli8ied 5obe )e>ues!

use:s; !he e8eence in8oma!ion !o uni>uel% iden!i8% !he e8eenced 5obe

)e>ues!, which was eceied b% i! ealie.

Slide "


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


once+! 1 > "i&+li'ied (ro)e Re=ue$! )y

Re'erencing !o a Received (ro)e Re=ue$! 2

• ir$! !he ( receive$ a (ro)e Re=ue$! 'ro& "*1.

• *hen !he ( receive$ 'ro& "*2 a $i&+li'ied (ro)e Re=ue$! hich

incor+ora!e$ !he 'ir$! (ro)e Re=ue$! )y re'erencing !o !he 'ir$! (ro)e Re=ue$!.

• *hen !he ( $end$ a (ro)e Re$+on$e a! lea$! !o "*2 con$idering )o!h !he

$i&+li'ied (ro)e Re=ue$! and !he re'erenced (ro)e Re=ue$!:

– The #5 ma% boadcas! a single

5obe )esonse !ha! oides

esonse !o bo!h ST#s 5obe

)e>ues!s o

– The #5 ma% unicas! i! !o ST#2.

Slide 6


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


ra&e or&a! 'or !he "i&+li'ied (ro)e

Re=ue$! 'ra&e• #ue !o a lac o' un-u$ed $u)-!y+e$ 'or &anage&en! 'ra&e$ e reco&&end

!ha! *,ai reu$e$ and &odi'ie$ !he e6i$!ing (ro)e Re=ue$! 'ra&e 'or&a! 'or

!he $i&+li'ied (ro)e Re=ue$!.

– B.g., using !he esence o8 !he 5obe )e>ues! )e8eence +B in !he 8ame

bod% !o indica!e !ha! i! is a Simli8ied 5obe )e>ues!

Slide 7


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


naly$i$ on Overhead

Regular (ro)eRe=ue$! @y!e$

"i&+li'ied (ro)eRe=ue$! @y!e$

=#CHeade

2 2

ame Eod% 100 :i8 S# is used as !hee8eence;

CS

Fehead)educ!ion

9@# G100 E%!es

Slide


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


@ene'i!$

• Reducing !he air-!i&e re=uired !o co&+le!e !he $a&e

nu&)er$ o' (ro)e Re=ue$! and (ro)e Re$+on$e in a high-

den$i!y i-i device environ&en! $uch a$ in *oyo !rain

$!a!ion $cenario )y !aing advan!age o' o!her?$ (ro)e

Re=ue$!$ or (ro)e Re$+on$e$. *hu$

– )educing lin* se!u !ime

– #llowing moe ST#s !o access !he #5 8o seices

– Saing !he ai-!ime 8o eal !a88ic a%load and boos!ing da!a

!houghu!s in bus% #5s – +moing oeall use eAeience

• "i&+le 5 $!andard change$

Slide $


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


4 - 1

• 4: Ao doe$ a IB"-ca+a)le "* no !ha! !he !arge!

( i$ IB"-ca+a)le )e'ore i! decide$ !o !ran$&i! a

$i&+li'ied (ro)e Re=ue$!C

• : *he IB" #i$covery 'ra&e can +rovide !he

indica!ion !ha! !he !arge! ( i$ IB"-ca+a)le e.g.

u$ing ei!her !he +re$ence o' !he IB" #i$covery 'ra&e

or a 1-)i! ca+a)ili!y )i! in !he IB" #i$covery 'ra&e.

Slide 10


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


4 - 2

• 4: Ao long doe$ a non-( "* or an ( need !o

&e&oriDe !he (ro)e Re=ue$! received in !he +a$!C

• : "ince !he goal i$ !o co&+le!e !he ini!ial lin $e!u+

i!hin 100&$ec a &a6i&al !i&er value hich $hould

)e &uch le$$ !han 100&$ec can )e $+eci'ied in 11ai

a&end&en! $uch !ha! a IB"-ca+a)le "* $hall no!

re'erence a (ro)e Re=ue$! !ha! i$ received earlier !han

!hi$ &a6i&al !i&er value. *he ( are no! re=uired !o&e&oriDe any (ro)e Re=ue$! 'ra&e$ !ha! are received

earlier !han !hi$ &a6i&al !i&er value.

Slide 11


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


4 - 3

• 4: ha! i' !he ( doe$n?! receive !he re'erence (ro)e

Re=ue$!C

• : *he ( &ay $!ill $end a regular (ro)e Re$+on$e.

Slide 12


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


"!ra (oll 1

• #o you $u++or! !ha! a IB"-ca+a)le "* &ay $end a

$i&+li'ied (ro)e Re=ue$! )y re'erencing !o ano!her "*?$

(ro)e Re=ue$! !ha! a$ received earlier !here)y re&oving

!he redundan! in'or&a!ion ele&en!$ !ha! are already in

!he re'erenced (ro)e Re=ue$! 'ro& !he $i&+li'ied (ro)e

Re=ue$!C

e$: 2F

%o: 9

)$!ain: F

Slide 1


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


"!ra (oll 2

• #o you $u++or! u$ing !he $ource addre$$ " in !he

re'erenced (ro)e Re=ue$! a$ !he re'erence in'or&a!ion in

!he (ro)e Re=ue$! or !he $i&+li'ied (ro)e Re=ue$! )a$ed

on hich !he ( &ay $end !he (ro)e Re$+on$e in a

)roadca$! &annerC

e$: 2F

%o: 8

)$!ain:

Slide 1


15/23

doc.: IEEE 802.11-12/0791r3

Submission

July 2012


5o!ion 1

• 5ove !o add !he 'olloing !e6! !o G"ec!ion H.1 c!ive

$canning in !he *,ai "# 12/011r8:

GH.1.10 "i&+li'ied (ro)e Re=ue$!

IB"-ca+a)le "* &ay $end a $i&+li'ied (ro)e Re=ue$!

)y re'erencing !o ano!her "*?$ (ro)e Re=ue$! !ha! a$

received earlier !here)y re&oving !he redundan!

in'or&a!ion ele&en!$ !ha! are already in !he re'erenced

(ro)e Re=ue$! 'ro& !he $i&+li'ied (ro)e Re=ue$!.

• 5over:

• "econder:

• Re$ul! e$ %o )$!ain

Slide 1"


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


5o!ion 2

• 5ove !o add !he 'olloing !e6! !o G"ec!ion H.1 c!ive

$canning in !he *,ai "# 12/011r8:

GH.1.11 *riggering !he )roadca$!ed (ro)e Re$+on$e !ran$&i$$ion

*he $ource addre$$ " o' !he "* !ha! $en! !he re'erenced (ro)e

Re=ue$! &ay )e included in !he (ro)e Re=ue$! or $i&+li'ied (ro)eRe=ue$!. *he ( &ay )roadca$! !he (ro)e Re$+on$e )a$ed on !he

!riggering re'erence in'or&a!ion i.e. !he $ource addre$$ o' !he "*

!ha! $en! !he re'erenced (ro)e Re=ue$! .

• 5over:

• "econder:

• Re$ul!

• e$ %o )$!ain

Slide 16


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


Re'erence$

;1< IEEE 802.11-11/1031r0 air-!i&e-con$u&+!ion-)y-

)eacon-and-+ro)e.

;2< IEEE 802.11-11/1F13r3 real-air-!i&e-occu+a!ion-)y-

)eacon-and-+ro)e.

;3< IEEE 802.11-12/011r8 +ro+o$ed-$+eci'ica!ion-

'ra&eor-'or-!gai.

;F< IEEE 802.11-12/00rH +ro)e-re$+on$e-)roadca$!ing.

Slide 17


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


++endi6

Slide 1


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


once+! 2 > "i&+li'ied (ro)e Re$+on$e )y

Re'erencing a (ro)e Re$+on$e "en! Earlier 1

• *he ( 'ir$! $end$ a regular (ro)e Re$+on$e 'ra&e in re$+on$e !o a (ro)e

Re=ue$! $en! )y an "* e.g. "*1.

• *hen in re$+on$e !o a (ro)e Re=ue$! he!her i! i$ $i&+li'ied or no! 'ro&

ano!her "* e.g. "*2 !he ( $end$ a $i&+li'ied (ro)e Re$+on$e !o "*2 )y

re'erencing !o !he regular (ro)e Re$+on$e !ha! a$ $en! earlier a$ long a$ !he

( no$ !ha! "*2 i$ li$!ening !o !he regular (ro)e Re$+on$e e.g.

– The #5 eceies !he 5obe )e>ues! 8om ST#2 immedia!el% be8oe i! sends ou!

!he egula 5obe )esonse o

– The second 5obe )e>ues! is a simli8ied 5obe )e>ues! !ha! e8eences !o !he

8is! 5obe )e>ues!, indica!ing !ha! ST#2 mus! be awa*en and lis!ening !o !he

channel since i! eceies !he 8is! 5obe )e>ues!.

Slide 1$


20/23

doc.: IEEE 802.11-12/0791r3

Submission

July 2012


once+! 2 > "i&+li'ied (ro)e Re$+on$e )y

Re'erencing a (ro)e Re$+on$e "en! Earlier 2• *he $i&+li'ied (ro)e Re$+on$e include$ a (ro)e Re$+on$e Re'erence ield or IE

hich co+ie$ e.g. !he "e=uence on!rol nu&)er in !he (ro)e Re$+on$e !ha! i$

$en! earlier a$ !he re'erence in'or&a!ion.

– The !age! eciien!:s; o8 !he Simli8ied 5obe )esonse use:s; !he e8eence

in8oma!ion !o uni>uel% iden!i8% !he e8eenced 5obe )esonse, which was

eceied b% i! ealie.

Slide 20


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


"!ra (oll 3

• #o you $u++or! !ha! a IB"-ca+a)le ( &ay $end a

$i&+li'ied (ro)e Re$+on$e )y re'erencing !o ano!her

(ro)e Re$+on$e !ha! a$ $en! earlier !here)y re&oving

!he redundan! in'or&a!ion ele&en!$ !ha! are already in

!he re'erenced (ro)e Re$+on$e 'ro& !he $i&+li'ied (ro)e

Re$+on$eC

e$:%o:

)$!ain:

Slide 21


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


"!ra (oll F

• #o you $u++or! u$ing !he "e=uence on!rol nu&)er in !he

re'erenced (ro)e Re$+on$e a$ !he re'erence in'or&a!ion in

!he $i&+li'ied (ro)e Re$+on$eC

e$:

%o:

)$!ain:

Slide 22


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doc.: IEEE 802.11-12/0791r3

Submission

July 2012


5o!ion 3

• dd !he 'olloing !e6! !o G"ec!ion H.1 c!ive $canning

in !he *,ai "# 12/011r8:

GH.1. "i&+li'ied (ro)e Re$+on$e

( &ay $end a $i&+li'ied (ro)e Re$+on$e )y re'erencing !o

a regular (ro)e Re$+on$e !ha! a$ $en! earlier !here)y

re&oving !he redundan! in'or&a!ion ele&en!$ !ha! are

already in !he re'erenced (ro)e Re$+on$e 'ro& !he

$i&+li'ied (ro)e Re$+on$e.

• 5over:

• "econder:

• Re$ul! e$ %o )$!ain

Slide 2

11 12 0791-03-00ai Reducing Overhead in Active Scanning

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Transcript of 11 12 0791-03-00ai Reducing Overhead in Active Scanning