Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)
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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Transmission in an RSLN enabled PAN Date Submitted: 14 March, 2012 Source: Seong-Soon Joo, Jong-Arm Jun, Nae-Soo Kim, Cheol-Sig Pyo Company: ETRI

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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Project ieee p802 15 working group for wireless personal area networks wpans

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Submission Title: Transmission in an RSLN enabled PAN

Date Submitted: 14 March, 2012

Source: Seong-Soon Joo, Jong-Arm Jun, Nae-Soo Kim, Cheol-Sig Pyo

Company: ETRI

Address: 161 Gajeong-dong, Yuseong-gu, Daejeon, KOREA

Voice: +82-42-860-6333, FAX: +82-42-860-4197, E-Mail: [email protected]

Re:

Abstract: As an initial draft for the LECIM MAC, to extend the networking coverage of a star network, transmission in the Relayed Slot-Link Network (RSLN) enabeld PAN is described.

Purpose:Initial draft for the LECIM MAC

Notice:This document has been prepared to assist the IEEE P802.15. 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 P802.15.


Transmission in an rsln enabled pan

Transmission in an RSLN enabled PAN

Seong-Soon Joo*,

Jong-Arm Jun, Nae-Soo Kim, Cheol-Sig Pyo

ETRI


Transmission in rsln enabled pan i

Transmission in RSLN enabled PAN (I)

  • Starting transmission of a frame

    • command frame generation

      • MLME primitives by next higher layer of originator MAC

    • data frame generation

      • MCPS primitive by next higher layer of originator MAC

      • new attribute for MCPS-DATA.request

        • TxGrade : GRADE_0, GRADE_1, GRADE_2

  • Usage of slot-links for trasmitting a frame

    • command frame

      • from the PAN coordinator : coordinator slot or bidirectional device slot

      • from a device : bidirectional device slot

    • data frame

      • GRADE_0 : prioritized device slot

      • GRADE_1 : bidirectional device slot

      • GRADE_2 : bidirectional device slot


Transmission in rsln enabled pan ii

Transmission in RSLN enabled PAN (II)

  • Relaying in an RSLN repeater

    • 3rd level framefiltering

      • satify all the requirements except matching destination address

      • relaying a frame from a slot to a slot

    • relaying of a frame from prioritized device slot

      • inward only

      • search the nearest prioritized device slot

      • if no ACK within macAckWaitDuration, search another prioritized device slot or bidirectional device slot assigned to the device

    • relaying of a frame from coordinator slot

      • outward only

      • synchronous relaying to the coordinator slot

        • synchronize to the inner coordinator cyclic-frame beacon

    • relaying of a frame from bidirectional device slot

      • relaying tier of Data IE is lower than the repeater’s tier, relay outward

      • otherwise, relay inward

      • inward : synchronize to the outer coordinator cyclic-frame beacon

      • outward : synchronize to the inner coordinator cyclic-frame beacon


Project ieee p802 15 working group for wireless personal area networks wpans

Transmission in RSLN enabled PAN (III)

  • outward relaying

coordinator

layer 1

repeater A

A

A

A

a

A

a

layer 2

repeater a

layer 3

device 1

a

a

  • inward relaying

coordinator

layer 1

repeater A

A

A

A

a

A

a

layer 2

repeater a

layer 3

device 1

a

a


Multiple grades of slot access

Multiple Grades of Slot Access

  • GRADE_0

    • try on the earlist prioritized device slot

    • if no slot-link ACK within macAckWaitDuration, try on the bidirectional device slot or the next prioritized device slot which comes first

    • if no slot-link ACK within macAckWaitDuration, repeat 2nd phase for macMaxFrameRetries times

  • GRADE_1

    • waits for the primary bidirectional device slot in the cyclic-superframe, transmits the data

    • if the device fails to transmit the data in the primary bidirectional device slot in repeater, the device will keep searching supplementary bidirectional device slots for the duration of the cyclic-superframe or will search the coming cyclic-superframe for an opportunity to transmit the data.

    • if no ACK within slotted-su[erframe duration*macRelayingTier, repeat 2nd phase for macMaxFrameRetries times

  • GRADE_2

    • waits for the primary bidirectional device slot in the cyclic-superframe, transmits the data


Use of acknowledgement i

Use of Acknowledgement (I)

  • ACK in an RSLN enabled network

    • end-to-end ACK

      • relaying ACK in repeaters

    • slot-link ACK

      • repeater’s ACK

  • Usage of ACK

    • GRADE_0 : slot-link ACK & ACK

    • GRADE_1 : ACK, GACK

    • GRADE_2 : no ACK mechanism


Use of acknowledgement ii

Use of Acknowledgement (II)

  • Enhanced ACK frame

    • Header IE

    • RSLN ACK

      • slot-link ACK

      • GACK

  • RSLN ACK IE


Use of acknowledgement iii

Use of Acknowledgement (III)

Originator next higher layer

Originator MAC

Repeater

MAC

Recipient MAC

Recipient next higher layer

MCPS-DATA,request(gr0)

Data (AR=1)

Data (AR=1)

slot-link ACK

slot-link ACK

Acknowledgment

MCPS-DATA,indication

Acknowledgment

MCPS-DATA,confirm


Use of acknowledgement iv

Use of Acknowledgement (IV)

Originator next higher layer

Originator MAC

Repeater

MAC

Recipient MAC

Recipient next higher layer

MCPS-DATA,request(gr1)

Data (AR=1)

Data (AR=1)

Acknowledgment

MCPS-DATA,indication

Acknowledgment

MCPS-DATA,confirm


Use of acknowledgement v

Use of Acknowledgement (V)

Originator next higher layer

Originator MAC

Repeater

MAC

Recipient MAC

Recipient next higher layer

MCPS-DATA,request(gr0)

Data (AR=1)

Data (AR=1)

slot-link ACK

Retry Transmission in alternative slots

Data (AR=1)

slot-link ACK

MCPS-DATA,indication

Acknowledgment

Acknowledgment

MCPS-DATA,confirm


Use of acknowledgement vi

Use of Acknowledgement (VI)

Originator next higher layer

Originator MAC

Repeater

MAC

Recipient MAC

Recipient next higher layer

MCPS-DATA,request(gr1)

Data (AR=1)

Data (AR=1)

Retry Transmission in alternative slots

Data (AR=1)

Data (AR=1)

MCPS-DATA,indication

Acknowledgment

Acknowledgment

MCPS-DATA,confirm


Pending slot frames i

Pending Slot Frames (I)

  • Pending frames

    • the PAN coordinator or repeaters can pend

      • outward link only

    • only on bidirectional device slot

    • no ACK replied from the outward bidirectional device slot

    • keep transmitting pending frame in bidiretional device slot

    • start to provide pending slot infor in beacon

    • wait for macPendingWaitDuration* slotted-suerframe duration, remove pending slot infor

  • Extracting pending data

    • when finding a pending slot in beacon, wake up on the bidirectional device slot to receive a frame

    • expire pending after macPendingWaitDuration * slotted-suerframe duration


Pending slot frames ii

Pending Slot Frames (II)

Recipient next higher layer

Recipient

MAC

Repeater

MAC

PAN Coordinator

MAC

PAN Coordinator next higher layer

MCPS-DATA,request(gr1)

Data (AR=1)

Data (AR=1)

Retry Transmission in primary bidir. slot

Beacon (pending slot)

Data (AR=1)

Acknowledgment

Acknowledgment

MCPS-DATA,indication

MCPS-DATA,confirm


Project ieee p802 15 working group for wireless personal area networks wpans

Thanks for your Attention!

[email protected]


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