Project
IEEE C802.16m-10/0466r1
IEEE 802.16 Broadband Wireless Access Working Group < http://ieee802.org/16 >
Title The Allocation Method of UL Sounding Channel in Frame Structure supporting
WirelessMAN-OFDMA (16.3.6)
2010-05-11 Date
Submitted
Source(s) Jinyoung Chun, Wookbong Lee, Jin
Sam Kwak, and Bin-Chul Ihm
Re:
LG Electronics
Jeongho Park
Samsung Electronics
Alexei Davydov jiny.chun@lge.com
*< http://standards.ieee.org/faqs/affiliationFAQ.ht
ml >
Intel Corporation
IEEE 802.16 Working Group Letter Ballot Recirc #31a
Abstract This contribution provides the allocation method of UL sounding channel in frame structure to support WirelessMAN-OFDMA.
Purpose To be discussed and adopted by TGm for the 802.16m draft.
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Jinyoung Chun, Wookbong Lee, Jin Sam Kwak and Bin-Chul Ihm
LG Electronics
Jeongho Park
Samsung Electronics
Alexei Davydov

Intel Corporation
IEEE C802.16m-10/0466r1
When frame structure is supporting the WirelessMAN-OFDMA MSs in PUSC zone by FDM manner as defined in 15.3.3.4, it’s not clear to allocate sounding channels of both LZone and MZone. Therefore I suggest the allocation of the sounding channel when frame structure is supporting the WirelessMAN-OFDMA MSs in PUSC zone by FDM manner.
The legacy sounding channel is allocated based on the physical frequency band consisted of continuous 18 subcarriers. And the allocation procedure of the legacy sounding channel is as below:
1.
UL Switch IE (if needed): it indicates permutation zone. Sounding channel is located in the last symbol(s) of a permutation zone.
2.
UIUC=13 with PAPR_Reduction_Safety_and_Sounding_Zone_Allocation_IE() : it indicates the allocation of an UL Sounding zone within the frame.
3.
UL_Sounding_Command_IE(): it commands an MS to transmit a sounding signal.
And the AAI sounding channel is allocated based on sounding band consisted of continuous 4*18 subcarriers and is located in the first symbol of the N subframes from the first type-2 (and then type-1) subframe. N is indicated by SFH-SP1.
When frame structure is supporting the WirelessMAN-OFDMA MSs in PUSC zone by FDM manner, the LZone and MZone are mixed in unit of tile. But sounding channels shall be allocated in unit of subband. So we can’t allocate the data channel in the LZone/MZone and the sounding channel in MZone/LZone in a symbol, respectively.
And 16m sounding channel is located from the first type-2 (and then type-1) subframe. But 16e control channels are in the first 3 symbols. Then when sounding channel is in the first symbol of the first subframe, they can be collided as the below figure.
OFDMA symbol
Can ’ t allocate data channels
LZone
16e PUSC subchannel
16m PUSC DRU
MZone
16e control channels
Figure 1. An example of the collision between sounding channel and 16e control channels in the first subframe
And the last one is the type-3 AAI subframe for distributed PUSC LRUs. There is no type-3
p ilot pattern for distributed PUSC LRUs, and we make it based on type-2 subframe.

IEEE C802.16m-10/0466r1
Proposed text has been underlined in blue and deleted text has been struck through in red . Existing draft text is shown in black.
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[Add the below right figures and small titles in line 43, page 546]
1
6 symbols
1
1 1
Figure 546
– Pilot pattern of 1-Tx stream for distributed PUSC LRUs
6 symbols 5 symbols
1 1 1 1
1 1
(a) type-1 AAI subframe
1 1
(b) type-3 AAI subframe
Figure 546 – Pilot pattern of 1-Tx stream for distributed PUSC LRUs
6 symbols
1 2
2 1
Figure 547 – Pilot pattern of 2-Tx stream for distributed PUSC LRUs
6 symbols 5 symbols
1 2 1 2
2 1
(a) type-1 AAI subframe
2 1
(b) type-3 AAI subframe
Figure 547 – Pilot pattern of 2-Tx stream for distributed PUSC LRUs
[Modify the row in line 6, page 529 in Table 837 – S-SFH SP1 IE format ]
…
Syntax Size (bit) Notes

Uplink AAI subframes for sounding
3
IEEE C802.16m-10/0466r1
This value represents the number of uplink AAI subframes with sounding symbols.
0b000 – no sounding symbols
0b001 – 1 AAI subframe
0b010 – 2 AAI subframes
0b011 – 3 AAI subframes
0b100 – 4 AAI subframes
0b101-111 – reserved
The sounding symbols shall be placed in AAI subframes in accordance to their type. First, sounding symbols shall be allo¬cated in uplink AAI subframes of type 2 starting from the first in time AAI subframe of type 2.
If the number of uplink AAI subframe of type 2 is less than the number of
AAI subframes for sounding, sounding symbols shall be allocated in the
AAI subframes of other types in the following order: type 1. For these types of uplink AAI subframes sounding symbols shall be allocated in the similar way as for type 2.Type 3 uplink AAI subframes are not used for sounding.
When frame structure is supporting the WirelessMAN-OFDMA
MSs in PUSC zone by FDM manner, this field means bitmap to indicate AAI subframes for sounding.
…
[Add the below text in line 46, page 680 in 16.3.9.1.3.1 Sounding PHY structure]
When frame structure is supporting the WirelessMAN-OFDMA MSs in PUSC zone by FDM manner, the sounding channels of both LZone and MZone are allocated in a symbol based on the unit of sounding subband, i.e., continuous 4*18 subcarriers by UL Sounding Command IE (8.4.5.4.24) and UL Sounding Command A-
MAP IE (16.3.6.5.2.4.6), respectively.
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