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Hi Hanqing, I think 20MHz operating non-AP EHT STA is clear in the spec base on the definition. Maybe some other PHY people can comment if it is not clear.
20 MHz operating non-access point (non-AP) extremely high throughput station (EHT STA):
A non-AP EHT STA that is operating in 20 MHz channel width mode, such as a 20 MHz-only non-AP EHT STA or an EHT STA that has reduced its operating channel width to 20 MHz
using operating mode indication (OMI). Regards, Yunbo 发件人: Hanqing Lou [mailto:Hanqing.Lou@xxxxxxxxxxxxxxxx]
Yunbo, In Section 36.1.1, we have used the terms below:
For people who didn’t follow this thread, I think it is not very clear if “EHT STA that is a STA 6G with 20MHz operating bandwidth” refers 20MHz-only STA or 20MHz operating STA. This is the reason I suggest using “20
MHz operating EHT STA in 6 GHz band” instead. Best regards, Hanqing From: Liyunbo <liyunbo@xxxxxxxxxx>
Hi Hanqing， Thanks for your comments. STA 6G is a terminology that defined in 11ax spec. This question was discussed, please check and let me know whether you have other comments. Regards, Yunbo 发件人: Hanqing Lou [mailto:Hanqing.Lou@xxxxxxxxxxxxxxxx]
Yunbo and all, Thanks for the discussions and clarifications. I didn’t see the definition of
STA 6G with 20MHz operating bandwidth anywhere. I suggest to use the terminology defined in spec. Below is my suggestion: During reception by a VHT STA, HE STA, EHT STA
in 2.4 GHz band, EHT STA in 5 GHz band, During reception by an EHT STA 6G
that is not a 20MHz operating EHT STA Best regards, Hanqing From: Liyunbo <00001846a2e5e0c1-dmarc-request@xxxxxxxxxxxxxxxxx>
Hi Xiaogang, Thanks. I modified the text based on your suggestions (highlighted in green). Please double check. Dear all, Please let me know whether the modifications are fine for you, thanks. Regards, Yunbo 发件人: Chen, Xiaogang C [mailto:xiaogang.c.chen@xxxxxxxxx]
Hi Ross Yes. That’s the cases I talked about. IMO, the changes are also future proof in case 20MHz only is introduced.
From: Yujian (Ross Yu) <ross.yujian@xxxxxxxxxx>
Hi Xiaogang, 6GHz only supports 80MHz or above only STA currently. You are talking about 20MHz operating STA which reduced its operating bandwidth from 80MHz or above to 20MHz. Do I understand
correctly? The STA shall have the capability to understand 320MHz NDPA bandwidth. Whilst if the STA chooses to reduce its bandwidth to 20MHz, during that period, the STA can choose to not understand the 320Mhz NDPA. Is it the case? Ross Jian Yu
于健 Huawei Technologies 发件人: Chen, Xiaogang C [mailto:xiaogang.c.chen@xxxxxxxxx]
Hi Yunbo Here are my thoughts:
If dot11EHTOptionImplemented is equal to true and the STA is not a STA 6G(#4147)
or a 20MHz operating STA 6G, then the allowed values are CBW20, CBW40, CBW80, or CBW160. If dot11EHTOptionImplemented is equal to true and the STA is a STA 6G(#4147)
with operating bandwidth greater than 20MHz, then the allowed values are CBW20, CBW40, CBW80, CBW160, or CBW320. From: Liyunbo <00001846a2e5e0c1-dmarc-request@xxxxxxxxxxxxxxxxx>
Hi Wook Bong, Thanks for your question. Current text is clear for me, 20MHz only STA is not related for now. Let’s see whether Xiaogang has concern or suggestions. Regards, Yunbo 发件人: Wook Bong Lee [mailto:wookbong.lee@xxxxxxxxxxx]
Hi Yunbo and Xiaogang, Thanks for discussion. Do we need to worry about 20 MHz only STA? It is clear that this is only for STA 6G. The TA field is the address of the STA transmitting the RTS frame or the bandwidth signaling TA of the STA transmitting the RTS frame. In an RTS frame transmitted by an EHT STA that is a STA 6G
with 320 MHz bandwidth support in a non-HT or non-HT duplicate format to another EHT STA that is a STA 6G Best regards, Wook Bong Lee From: Liyunbo [mailto:00001846a2e5e0c1-dmarc-request@xxxxxxxxxxxxxxxxx]
Hi Xiaogang, Thanks for your feedback.
As you said, since 20MHz only STA is not allowed in 6GHz yet. So current text doesn’t related to 20MHz only STA. How about we clarify the rule for 20MHz only STA based on the decision
from the group when it is allowed? From my knowledge, there is no other frame with 320MHz non-HT duplicated format need to be understand by 20MHz only STA. Regards, Yunbo 发件人: Chen, Xiaogang C [mailto:xiaogang.c.chen@xxxxxxxxx]
Thanks Yunbo. CID 4147 is about 320Mhz NDPA, so I add my understanding below:
Btw, I cannot find any change directly related to NDPA in your document except RXVECTOR below. If the highlighted is used to cover NDPA, my question is if 20MHz only device is allowed in 6GHz, they also need to support
320MHz BW signaling even they will never be able to participate 320MHz sounding? Is there other frames with 320MHz non-HT dup format need to be understood by 20Mhz only STA?
From: Liyunbo <00001846a2e5e0c1-dmarc-request@xxxxxxxxxxxxxxxxx>
Dear all, I initial this e-mail thread to discuss the issue of BW signaling of NPDA which mentioned in CID 4147. Please let me know your comments and suggestions, thanks. I uploaded 230r2 to the server to incorporate Po-Kai’s comments during the presentation.
https://mentor.ieee.org/802.11/dcn/22/11-22-0230-02-00be-cc36-cr-of-cid-4147-and-5311.docx Regards, Yunbo To unsubscribe from the STDS-802-11-TGBE list, click the following link:
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