Re: [STDS-802-11-TGAI] 0741r3
Hi Yunsong,
I don't think the case also has problem because a STA can receive at least
one Beacon frame before entering the power saving mode.
And FILS Discovery Frame Action field also carries a lot of information for
non-AP STA to set up the initial link. (e.g., FD capability, next TBTT
Offset, etc.)
I haven't found any problem on it yet.
Thanks,
Jeongki
-----Original Message-----
From: *** 802.11 TGai - Fast Initial Link Set-Up ***
[mailto:STDS-802-11-TGAI@xxxxxxxx] On Behalf Of Yangyunsong
Sent: Thursday, July 17, 2014 6:16 AM
To: STDS-802-11-TGAI@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGAI] 0741r3
Maybe Capability field is less a problem as the Association Response frame
has the Capability field. What about Beacon Interval is changed?
Thanks.
Yunsong Yang
Huawei Device USA Inc.
10180 Telesis Court, STE 165
San Diego, CA 92121
Phone: +1-858-754-3638
-----Original Message-----
From: *** 802.11 TGai - Fast Initial Link Set-Up ***
[mailto:STDS-802-11-TGAI@xxxxxxxx] On Behalf Of Yangyunsong
Sent: Wednesday, July 16, 2014 1:53 PM
To: STDS-802-11-TGAI@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGAI] 0741r3
Importance: High
Hi Jeongki and all,
In 0741r3, the Capability and Beacon Interval fields are no longer
considered as a part of the BSS Parameter Set (used to be known as the AP
Configuration Information Set), which means that if any of these two fields
is changed, it will not cause the AP-CSN to increase. I wonder if this will
be problematic in the following case:
Let's say that a non-AP STA has been to an AP before and stored the BSS
parameter Set and AP-CSN at that time. During the absence of the STA, a
value in the AP's Capability field was changed (but it won't cause the
AP-CSN to increase, based on 0741r3). Later, the STA comes back to the same
AP. By received a FILS Discovery frame that shows the same AP-CSN as
before, the STA thinks every parameter of this AP is same as before and
starts the association procedure. However, some value in Capability field
has changed and the STA is unaware of that. Will this cause any problem?
Thanks.
Yunsong Yang
Huawei Device USA Inc.
10180 Telesis Court, STE 165
San Diego, CA 92121
Phone: +1-858-754-3638
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