Zigbee standard message sequence while a Co-ordinator starts

Coordinator Starting

1. MLME-RESET.request ( true/false (SetDefaultPIB) )

        → Upper layer to MAC

2. PLME-SET-TRX-STATE.request (TRX_OFF)

        → MAC to PHY

3. PLME-SET-TRX-STATE.confirm (SUCCESS)

        → PHY to MAC

4. MLME-RESET.confirm (SUCCESS)

        → MAC to Higher layer

5. MLME-SCAN.request( 0 x 00(ScanType, ED), 32-bit field(ScanChannels),     0 to 14(ScanDuration) )

        → Higher layer to MAC.

6. PLME-SET-TRX-STATE.request (RX_ON)

        → MAC to PHY

7. PLME-SET-TRX-STATE.confirm (SUCCESS)

        → PHY to MAC

8. PLME-SET.request ( 0 x 00(PIBAttribute Identifier-phyCurrentChannel), firstchannel(0 to 26) )

        → MAC to PHY

9. PLME-SET.confirm ( SUCCESS, 0 x 00(PIBAttribute Identifier-phyCurrentChannel) )

        → PHY to MAC

10. PLME-ED.request ()

        → No parameter associated.

        → MAC to PHY.

10. PLME-ED.confirm ( SUCCESS(status), 0 x 00–0 x ff(Energy level) )

        → PHY to MAC.

Note: Energy detection done repeatedly for each channel for aBaseSuperframeDuration x (2ⁿ +1), where n is ScanDuration whose value < 14.

Note: Steps 8 to 11 done repeatedly to finish scanning of all channels specified in ScanChannels parameter of MLME-SCAN.request.

12. PLME-SET-TRX-STATE.request (TRX_OFF)

        → MAC to PHY

12. PLME-SET-TRX-STATE.confirm (SUCCESS)

        → PHY to MAC

12. MLME-SCAN.confirm ( SUCCESS, 0 x 02(ScanType-Passive scan), 32-bit field(unscanned channels), ResultListSize(No. Of elements returned, 0 for orphan), 0 x 00 to 0x ff(List of energy measured, one for each channel), PANDescriptorList(Null for ED & Orphan) )

        → MAC to Higher level

Note: Select PANId, ShortAddress, Logical Channel.

12. MLME-START.request ( 0 x 0000 – 0 x ffff (PANId) LogicalChannel, 0-15(BeaconOrder), 0-15(SuperframeOrder), True/False(PanCoordinator), True/False(BatteryLifeExtension), True/False(CoordRealignment), True/False(SecurityEnable) )

        → Higher layer to MAC

12. PLME-SET-TRX-STATE.request (TX_ON)

        → MAC to PHY

12. PLME-SET-TRX-STATE.confirm (SUCCESS)

        → PHY to MAC

12. PD-DATA.request ( psduLength((<=127, msdu length)), psdu(set of octets) )

        → MAC to PHY

Note: Sent Beacon.

12. PD-DATA.confirm (SUCCESS)

        → PHY to MAC

12. MLME-START.confirm (SUCCESS)

        → MAC to Higher layer

12. PLME-SET-TRX-STATE.request (RX_ON)

        → MAC to PHY

12. PLME-SET-TRX-STATE.confirm (SUCCESS)

         → PHY to MAC