Hello Minyoung
Thanks for providing the following SP. It seems the enhanced single radio has the same position as non-STR MLD based on Sindu’s analysis. First,
non-STR MLD is already in the spec, and single radio device is widely supported now, we do not need any similar thing as them unless it has obvious gain, otherwise it will complicates the multi-link operation. Second, enhanced single radio obviously performs
worse than multi-radio, including non-STR. For example, about 30% throughput gain lost in your simulation (may need further evaluate it for more scenarios ). Third, enhanced single radio has almost cost as Multi-radio. I double checked with our implementation
guys, please refer to the following analysis
1.
enhanced single radio and Multi-radio have exact same RF and ABB,e,g., AGC. They both need two PLL (take two-radio for example)
2.
enhanced single radio and Multi-radio have almost same DBB, have the same number of DBB, the slight difference for enhanced single radio is that it has some DBB with limited
function. However, their cost are almost same.
Moreover, now we already have mobile device which supports multi-radio (dual band wifi), like
OPPO Reno 10x, OPPO R11, Vivo iQOO, realme X50 and so on. I do not find any motivation to downgrade the performance of 11be given the almost similar cost.
By the way, I am confusing at you guys’ logic now, you guys propose to cut down everything to catch TGbe timeline, like AP coordination, even for
simple AP coordination. Why not cut down enhanced single radio? Compared with AP coordination and HARQ, its value is much more low.
Just for fun, do not think enhanced single radio is like wake up radio?
Best wishes,
Ming Gan
发件人: Minyoung Park [mailto:mpark.ieee@xxxxxxxxx]
发送时间: 2020年6月17日
12:09
收件人: STDS-802-11-TGBE@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBE] TGbe Teleconferences [06/17/2020 and 06/18/2020]: Agendas Posted
Hi Alfred, Jeongki,
Could you please add the following SP in 11-20/562r4 to the MAC call on June 18th under Deferred SPs from Previous Topics? I had offline discussions with no voters and resolved most of their concerns. I've also added
more explanations at the end of the presentation how the proposed approach fills the gap between a single-radio/link 2x2 MIMO and STR MLD (2x2 per link) in terms of complexity and performance.
SP2: Do you support the concept of the multi-link operation for an enhanced single-link/radio (TBD) non-AP MLD that is defined as follows for R1?
-
An MLD that can: 1) transmit or receive data/management frames to another MLD on one link, and 2) listening on one or more links.
-
The “listening” operation includes CCA as well as receiving initial control messages (e.g., RTS/MU-RTS)
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Link switch delay may be indicated by the non-AP MLD
I uploaded an updated version of the agendas, which contains the agenda for the next two conference calls:
- June 17 (Wednesday) – MAC 10:00-13:00 ET
- June 18 (Thursday) – MAC/PHY 19:00-22:00 ET
The agendas can be found here:
The dial in details can be found in the IEEE 802.11 calendar in their respective entries. The calendar can be access from this
webpage
Please note the following:
* For MAC ad-hoc conf calls:
For the Thursday Conf Call we will continue with technical submissions from where we left on the Wednesday Conf Call. As usual they will be preceded by deferred SPs from previous topics, and by deferred SPs from current topic.
An update will be sent after Wednesday's MAC ad-hoc call which includes the updated agenda for Thursday's MAC ad-hoc call.
* For PHY ad-hoc conf calls:
Please let me know if you have any submissions to be added to the PHY agenda. As of now there are no submissions scheduled for the Thursday PHY conf call (please see guideline below prepared based on feedback from PHY ad-hoc group).
PS: Guidelines for PHY conf calls:
-
Every time the agenda is sent the TG chair will ask if there are any submissions requests to be added to the PHY submissions queue. Requests can be regarding new submissions or regarding submissions with deferred SPs.
-
Requests may explicitly indicate if the requestor prefers to discuss his/her submission at a particular PHY conf call. If there is no such explicit indication then the submission will be added by default to the PHY submissions queue and will
be scheduled for presentation in a subsequent PHY conference call during which there are at least 3 submissions available for discussion.
-
A scheduled PHY conference call will be cancelled if the planned PHY agenda for that particular conference call does not have queued at least 3 presentations or at least one presentation with an explicit request. The cancellation notice in
this case will be sent at least 24 hours in advance.
Please let me know if you have any questions and/or
suggestions.
Best Regards,
--
Qualcomm Technologies Inc.
Office #: +1 858 658 5302
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