1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [Synchronization on the High-Rate]
Date Submitted: [12 Nov., 2007]
Source: [Youngae Jeon, Seonghee Lee, Sangsung Choi] Company [ETRI]
Address [161, Gajeong-dong, Youseong-gu, Daejeon, Korea]
Voice: [ ], FAX: [ ], ,
Abstract: [This document describes a synchronization method for high-data-rate WPAN mesh.]
Purpose: [To introduce a synchronization method for high-data-rate WPAN mesh.]
Notice: This document has been prepared to assist the IEEE P 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 P
Y. Jeon, ,S. Lee, S. Choi
<author>, <company>

2. Contents Reference MPNC Selection Algorithm
Contents
Reference MPNC Selection Algorithm
MPNC Slot Boundary Synchronization
Y. Jeon, ,S. Lee, S. Choi

3. Reference MPNC Selection Algorithm
Reference MPNC Selection Algorithm
Y. Jeon, ,S. Lee, S. Choi

4. Example 1 2007-11-12 e (LNSown = 5 (1own+2(a, b)n+2(c,d)nn)
Reference MPNC
e (LNSown = 5 (1own+2(a, b)n+2(c,d)nn)
LNSmax = 5, 3HopCnt = False
MACAddr = 0x07
MPNC e
MPNC X
MPNC d
MPNC a
MPNC b
MPNC c
a (LNSown = 5 (1own+2(b,e)n+2(c,d)nn)
LNSmax = 5, 3HopCnt = False
MACAddr = 0x03
Y. Jeon, ,S. Lee, S. Choi

5. Example 2 2007-11-12 A (LNSown = 5 (1own+1n+2(C,D,E)nn)
Reference MPNC
MPNC D
MPNC E
MPNC A
MPNC B
MPNC C
A (LNSown = 5 (1own+1n+2(C,D,E)nn)
LNSmax = 5, 3HopCnt = False
MACAddr = 0x05
MPNC X
MPNC d
MPNC e
MPNC a
MPNC b
MPNC c
a (LNSown = 5 (1own+2(b,e)n+2(c,d)nn)
LNSmax = 5, 3HopCnt = False
MACAddr = 0x03
Y. Jeon, ,S. Lee, S. Choi

6. Example 3 2007-11-12 A (LNSown = 4 (1own+1(B,C)n+1(D)nn)
LNSmax = 5, 3HopCnt = True
MACAddr = 0x05
Reference MPNC
MPNC A
MPNC C
MPNC X
MPNC B
MPNC D
A (LNSown = 4 (1own+2(A,C)n+1(D)nn)
LNSmax = 5, 3HopCnt = True
MACAddr = 0x01
MPNC E
Y. Jeon, ,S. Lee, S. Choi

7. Example 4 2007-11-12 A (LNSown = 3 (1own+1(B)n+1(C)nn)
MPNC D
MPNC A
MPNC B
MPNC C
A (LNSown = 3 (1own+1(B)n+1(C)nn)
LNSmax = 4, 3HopCnt = True
MACAddr = 0x05
MPNC X
MPNC e
Reference MPNC
MPNC a
MPNC b
MPNC c
a (LNSown = 5 (1own+1(b)n+1(c,d,e)nn)
LNSmax = 5, 3HopCnt = False
MACAddr = 0x03
MPNC d
Y. Jeon, ,S. Lee, S. Choi

8. MPNC Slot Boundary Synchronization
MPNC Slot Boundary Synchronization
If the Slot_drift is more than the guard time, the MPNC may choose either:
Shift slot boundary gradually toward reference device’s slot boundary by transmitting beacon frame earlier or later in steps less than guard time.
Use procedure of [R1] to move beacon transmission earlier or later to align slot boundary to reference device’s slot boundary in NbrOfChangeBeacons superframes.
Y. Jeon, ,S. Lee, S. Choi