IEEE C802.16m-08/317r1
Project
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
Title
Inter-BS Coordination for Interference Management in IEEE 802.16m
Date
Submitted
2008-05-08
Source(s)
I-Kang Fu, Yih-Shen Chen, Kelvin Chou, Paul
Cheng
MediaTek Inc.
No.1, Dusing Rd. 1, Hsinchu Science Park,
Hsinchu, Taiwan
IK.Fu@mediatek.com
Jin Lei, Libra Xiao,
Huawei Technologies
jinlei60020191@huawei.com
libra_xiao@huawei.com
Fang-Ching Ren, Richard Li
ITRI
frank_ren@itri.org.tw
richard929@itri.org.tw
Re:
IEEE 802.16m-08/016, “Call for Contributions on Project 802.16m System Description
Document (SDD),” – Comments on P802.16m SDD
Abstract
The inter-BS coordination to support interference management was widely discussed by TGm
members in Orlando meeting. This contribution aims to carry on members’ consensus on this
topic and perform further harmonization in TGm.
Purpose
For TGm discussion and adoption on the proposed text input for P802.16m SDD
Notice
Release
Patent
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Inter-BS Coordination for Interference Management
1
IEEE C802.16m-08/317r1
in IEEE 802.16m
I-Kang Fu, Yih-Shen Chen, Kelvin Chou, Paul Cheng
MediaTek Inc.
Jin Lei, Libra Xiao
Huawei
Fang-Ching Ren, Richard Li
ITRI
I. Introduction
In cellular OFDMA systems, the capacity is usually bounded by multiple access interference instead of the
number of sub-channel when universal frequency reuse is applied. Increasing transmit power can only provide
marginal improvement for this case because the interference power will also be increased. Therefore, aggressive
interference management such as fractional frequency reuse (FFR), transmit power control, Tx
beamforming/precoding, interference cancellation and etc. will be the key to increase the capacity of IEEE
802.16m OFDMA system.
In IEEE 802.16 Session#54 in Orlando, TGm adopted the text proposal in C802.16m-08/142r6 to introduce
the possible PHY and MAC operations for interference management. Unfortunately, some members have
concerns on the operations of inter-BS coordination for interference management support so that the TGm SDD
only left a bullet for further discussion on this issue. This contribution aims to carry on the further
harmonization based on the consensus already achieved in C802.16m-08/142r4. The final text proposal depends
on members’ discussion in Session#55.
II. Text Proposal
-------------------------------------------------------------Start of the Text------------------------------------------------------[Add the following text after line#32, page# 12 of TGm SDD]
Inter-BS coordination block performs functions to coordinate the actions of multiple BSs by exchanging
information for interference management, network self-organization and other MAC layer operations. The
functions include procedures to exchange information for interference management between the BSs by
backbone signaling and by MS MAC messaging. The information may be used for:
• Coordinating radio link scheduling
• Coordinating frequency reuse configuration
• Content synchronization
• Exchanging the interference characteristics, e.g. traffic load information, interference measurement results,
corresponding interfering BS ID and coordination state information, etc.
--------------------------------------------------------------End of the Text-------------------------------------------------------
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