submission doc.:ieee 802.22-07/0257r6 june 2007 kyutae lim, gedc, georgia tech slide 1 mac-sm-ssf...

June 2007

Kyutae Lim, GEDC, Georgia Tech

Slide 1Submission

doc.:IEEE 802.22-07/0257r6

MAC-SM-SSF Interface

IEEE P802.22 Wireless RANs Date: 2007-06-25

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].>

Name Company Address Phone email

Kyutae Lim GEDC Georgia Tech

85 5th Street NW, Atlanta, GA

+1-404-385-6008

[email protected]

Dave Cavalcanti Philips Research North America

345 Scarborough Road Briarcliff Manor, NY

+1-914)-945 6083

[email protected]

Gwang-Zeen Ko ETRI Korea +82-42-860-4862

[email protected]

Chang-Joo Kim ETRI Korea +82-42-860-1230

[email protected]

Wengdong Hu STMicroelectronics

1060 East Brokaw Road, San Jose, CA 95131

1-408-467-8410 [email protected]

Kihong Kim Samsung Electro-Mechanics

Korea +82-31-210-5332

[email protected]

June 2007


Slide 2Submission

doc.:IEEE 802.22-07/0257r6

Abstract

The presentation describes the overall system architecture and interfaces between the Spectrum Manager, MAC, Spectrum Sensing Function, Database and Geo-location Database based on IEEE P802.22 working draft.

It is updated based on the conference call of June 18, 2007.–In slide 3 : Incumbent database and Regulation and operation are now connected to BS via upper layer

–In slide 3 : Bring Geo-location into the BS entity as ﾊWinston requested.

–Added slide 9 : Defining when sensing occurred.

June 2007


Slide 3Submission

doc.:IEEE 802.22-07/0257r6

Overall System Architecture (Sensing Info Flow Only)

Incumbent Database

SpectrumManager

SSF

…

Regulation and Operational

considerations

Higher Layers (IP, ATM, 1394 etc)

PHY

ConvergenceSub-layer/Bridge

MAC Common part

PHY

MAC

SM SSF

CPE#1

PHY

MAC

SM SSF

PHY

MAC

SM SSF

CPE#2 CPE#N

Geo-Location

(?)

June 2007


Slide 4Submission

doc.:IEEE 802.22-07/0257r6

Sensing Information Flaw

Geo-locationIncumbent Database

PHY

Regulation and Operational

considerations

CPE CH Set #N

Active Set

Occupied Set

Candidate/Backup Set

Null Set

Disallowed set

Spectrum Manager

CPE CH Set #1

Active Set

Occupied Set


Null Set

Disallowed set

BS CH Set #1

Active Set

Occupied Set


Null Set

Disallowed set

...PHY

SSF

Base-station CPE #N

SM (CPE)

CPE CH Set #N

Active Set

Occupied Set


Null Set

Disallowed set

MAC

MAC

SSF

June 2007


Slide 5Submission

doc.:IEEE 802.22-07/0257r6

MAC - SM Interface

** CH parameters includes Signal power, SNR, Noise power, Noise variance

Base station

PHY

MAC

SMSSF

CPE#

PHY

MAC

SM SSF

Sensing report @CH#

WRAN

Incumbent #1

...

CH parameters**

Incumbent #N

Vacant

CH1 info

...

CH-N info

CH Set DB @ CPE#

Request

CH# for sensing

Request

CH# for sensing

CPE # for DB

Sensing report @CH#

WRAN

Incumbent #1

...

CH parameters**

Incumbent #N

Vacant

Request

CH# for sensing

June 2007


Slide 6Submission

doc.:IEEE 802.22-07/0257r6

(Candidate) Functions of SMSM in BS Management

functionalities in CPEChannel Set Information

- Maintain/Updated Channel sets based on information collected from its sensing function, its associated CPEs, Incumbent database and Geolocation database.

-Inform CPEs of changes in Channel sets

-Maintain a local copy of channel set info

-Update channel set information as directed by the BS and as a result of in-band/out-of-band sensing

Control Spectrum sensing related message

- Send commands to its SSF and to CPEs’ SSFs (Sensing Request Command)

-Receive sensing reports from the MAC (local reports and reports from CPEs)

-Control the scheduling of the quiet periods

-Request SSF in the CPE to sense out-of-band channels, when not explicitly requested by the BS.

Channel Management

- Channel management commands

- Controls the selection of operating and backup channels based on information collected from its sensing function, from its associated CPEs, and from Incumbent and Geolocation databases.

Rest of Function Cap of TPC

DFS management

Inter network communication

Adaptive modulation

Spectrum sharing

Adaptive beamforming

June 2007


Slide 7Submission

doc.:IEEE 802.22-07/0257r6

MAC-SM Interface (BS)

• Generic Management Primitives– GET/SET/RESET primitives are defined in the MLME and PLME with the SM to

enable:• Initialization, access, and reset of MAC/PHY attributes (i.e. PHY/MAC MIB attributes)

• MLME SAP Interface with the SM – Spectrum Sensing Primitives:

• MLME-SpectrumSensing.Request (…)• MLME-SpectrumSensing.Confirm (…)

– Channel Management• MLME-ChannelSwitch.Request (…)• MLME-ChannelSwitch.Confirm (…)• MLME-ChannelTerminate.Request (…)• MLME-ChannelTerminate.Confirm (…)• MLME-ChannelQuiet.Request (…)• MLME-ChannelQuiet.Confirm(…)

June 2007


Slide 8Submission

doc.:IEEE 802.22-07/0257r6

MAC-SM Interface (Cont.)

– Channel Sets Information:• MLME-CHOccupancy-Update.Request (…)

– Result: BS sends updated channel set information to CPE(s)

• MLME-CHOccupancy-Update.Confirm (…)

• ???

June 2007


Slide 9Submission

doc.:IEEE 802.22-07/0257r6

When does sensing?

Start-upControlled by Self

To establish initial link

In-band (Quiet-time)Controlled by SM BSTo detect incumbent

Out-of-bandControlled by BS

For distribute sensing

Out-of-bandControlled by BS (or Self)

For distribute sensing

Out-of-bandControlled by Self

To update candidate CH

June 2007


Slide 10Submission

doc.:IEEE 802.22-07/0257r6

(Candidate) SM Interfaces

• With the MAC

• With the SSF

• With the PHY

• With the Spectrum Policy / Geolocation / Spectrum Database

• With the Higher-layer (Bridges, routers, hosts, etc.)

June 2007


Slide 11Submission

doc.:IEEE 802.22-07/0257r6

submission doc.:ieee 802.22-07/0257r6 june 2007 kyutae lim, gedc, georgia tech slide 1 mac-sm-ssf...

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