Resource allocation for FDMed E-MBS Data
IEEE 802.16 Presentation Submission Template (Rev. 9)
Document Number:
IEEE C80216m-09_2049
Date Submitted:
2009-08-30
Source:
Dongcheol Kim, Wookbong Lee, Jin Sam Kwak,
HanGyu Cho and Bin-Chul Ihm
LG Electronics
dongcheol.kim@lge.com
Venue:
IEEE 802.16m Session#63, Jeju, Korea
Base Contributions:
N/A
Re:
Purpose:
To discuss and adopt in TGm
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Overview
• In order to support E-MBS traffic in the downlink
frame in the FDMed with unicast traffic, resource
allocation scheme is needed.
• E-MBS related information is sent from ABS
through SFH or Broadcast channel.
• Text is proposed for Section 15.3.5, “Downlink
Physical Structure”
Resource allocation method
• E-MBS traffic is only allowed to be carried on
frequency partition FP0 with N1 CRUs.
pros
Cons
Subband
allocation
•Better channel estimation •Lower diversity gain (But, MBSFN gain can
performance based on N1 compensate it).
•No impact on
subchannelization
DRU
allocation
• Higher diversity gain
•Worse channel estimation performance
based on N2
•Impact on subchannelization due to DRU
assignment for MBS
•DRU diversity loss of Unicast
• Possible impact on DL control due to DRU
shortage
Subchannelization for E-MBS Data
Figure 1 . Subchannelization for E-MBS Data
Proposed text
• Insert the following section and the text therein into
line xx of page yy of P802.16/D1
– [SFH or Broadcast channel indicates E-MBS traffic related
information. The period of SFH or Broadcast channel
transmission is FFS.]  이 부분은 MAC에 확인
X.x.x. subchannelization for E-MBS
E-MBS data is transmitted using subband CRU in frequency
partition FP0. For MBSFN support, E-MBS data is
assigned from the lowest index of subband CRU. Then, the
subcarrier permutation is applied for the whole subband
CRUs assigned for the E-MBS data