Mobility Management with Multi-Carrier Support in IEEE 802.16m
Document Number: S802.16m-08/144r1
Date Submitted: 2008-03-14
Source:
Kelvin Chou
I-Kang Fu
Yih-Shen Chen
Paul Cheng
Kelvin.Chou@mediatek.com
IK.Fu@mediatek.com
Yihshen.Chen@mediatek.com
Paul.Cheng@mediatek.com
MediaTek Inc.
No.1, Dusing Rd. 1, HsinChu Science-Based Industrial Park,
HsinChu, Taiwan 300, R.O.C.
Venue:
IEEE 802.16m-08/005 “Call for Contributions on Project 802.16m System Description Document (SDD)”, In response to the following
topics:
• Comments on the content of Section 8 of IEEE 802.16m-08/003
Base Contribution:
IEEE C802.16m-08/144
Purpose:
To be discussed and adopted by TGm for the 802.16m SDD.
Notice:
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It represents only the views of the participants listed in
the “Source(s)” field above. It is offered as a basis for discussion. It is not binding on the contributor(s), who 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 802.16.
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<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and <http://standards.ieee.org/guides/opman/sect6.html#6.3>.
Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and <http://standards.ieee.org/board/pat >.
1
Overview
• Multi-carrier support is more than optional
– Fast handover
– Load balance
– Multicast/broadcast services
• Text proposal to highlight the interactions
between multi-carrier support and other
function blocks
Scenario 1:
Fast Handover
Target BS
Cell Boundary
Serving BS
MAC
PHY
RF3
RF1
RF2
RF3
D
R
a
W ngi
en ng
try
RF2
PHY
a
at
N
RF1
MAC
RF1
RF2
PHY
MAC
MS, 20MHz
3
Comparison with Legacy Hard Handover
16e Hard Handover
MS
SBS
MS
Topology acquisition
(MOB_NBR-ADV)
SBS
Normal
Data traffic
traffic
Scanning
Data traffic
Scanning
Data traffic
Handover decision
(MOB_MSHO-REQ,
MOB_BSHO-REQ/RSP)
MOB_HO-IND
network entry procedure
NBS 1
NBS 2
RF1 RF2
RF1 RF2
Topology acquisition
(MOB_NBR-ADV)
Data traffic via RF1 of SBS
Interleaved
scanning periods
NBS 2
RF1 RF2
RF1 RF2
Data traffic via RF1 & RF2 of SBS
Data traffic
handover
interruption
NBS 1
MC-Supported Handover
Scanning
Scanning
Handover decision
(MOB_MSHO-REQ,
MOB_BSHO-REQ/RSP)
MOB_HO-IND
network entry
procedure
Data traffic via RF1 of NBS 1
Data traffic via RF1 & RF2 of NBS 1
Data traffic
4
Handover in High Mobility
• Dedicated RF carrier for connection maintenance
5
Scenario 2:
Load Balance
SBS
MAC
PHY
RF1
RF
RF1
RF1
RF1PHY
PHY
PHY
PHY
MAC
MAC
MAC
MAC
MS1, 10MHz
MS1, 10MHz
MS1, 10MHz
MS1, 10MHz
RF
RF1
PHY
PHY
MAC
MAC
MS5, 10MHz
MS2, 10MHz
RF2
RF3
RF1
RF2
RF1
RF2
PHY
PHY
MAC
MAC
MS7, 20MHz
MS3, 20MHz
RF
RF1
PHY
PHY
MAC
MAC
MS9, 10MHz
MS2, 10MHz
6
Scenario 3:
MBS and Unicast Services
MBS Zone
BS1
BS2
MAC
MAC
PHY
RF1
RF2
PHY
MAC
MS2, 20MHz
t
MS1, 10MHz
PHY
RF1
as
MAC
RF2
ic
Multicast / Broadcast
st
PHY
RF1
RF3
un
u n i ca
RF1
RF2
st
RF3
i ca
RF2
un
RF1
PHY
RF1
RF2
PHY
MAC
MS3, 20MHz
MAC
MS4, 20MHz
7
Scenario 4:
Seamless MBS Zone Switching
Serving MBS Zone
Target MBS Zone
BS
BS
BS
BS
BS
BS
MAC
MAC
MAC
MAC
MAC
MAC
PHY
PHY
PHY
RF1
RF2
RF3
RF1
RF2
RF3
RF1
RF2
RF3
PHY
PHY
PHY
RF1
RF2
RF3
RF1
RF2
RF3
RF1
RF2
RF3
MBS zone switching
RF1
PHY
MAC
MS1, 10MHz
RF1
RF2
PHY
RF1
RF2
PHY
MAC
MS2, 20MHz
MAC
MS3, 20MHz
8
Proposed Text
[In 80216m-08_003, Section 8.2, add the following text at page 15, line 14]
Multi-carrier support shall be considered in the
design of other MAC function blocks including
mobility management, radio resource
management and MBS.
9