## Due
to some format mismatch in my last mail, I re-send this again. Sorry for your
inconvenience. ##
Dear
Lepidus,
I
would like to share my understanding for your reference. Any correction or
amendment on my replies are welcome and appreciated.
1. The “MS autonomous neighbor cell
scanning” is not instructed by MOB_SCN-RSP, it’s different from the
normal scanning procedure defined in 6.3.22.1.2. According to section
8.4.13.1.3 in IEEE Std 802.16 Cor2/D2, the MS shall autonomously scan the
preamble transmitted by neighboring cells if it supports the capability of
FBSS/MDHO. So that MS can continuously maintain the signal quality database to
decide whether the neighbor BSs should be added into the diversity set.
2. Yes, the MS autonomous neighbor cell scanning
shall be performed only when the FBSS/MDHO is supported.
3. According to section 6.3.22.1.2, it says that
the serving BS may also send MOB_SCN-RSP message unsolicited. In this case, BS
will set Scan duration as zero to trigger MS to report scanning result.
Therefore, I think the MS which does not perform FBSS/MDHO may still be
instructed to report its scanning results by BS.
4. Yes, I think so. I think scanning the preamble
transmitted in different carrier frequency is not within the scope of
autonomous neighbor cell scanning. For this case, the normal scanning procedure
should be used.
Best
Regards,
I-Kang
=================================================
I-Kang
Fu IKFu@itri.org.tw
New
Mobile Access Tech. Dept.
Information
& Communications Research Labs
Industrial
Technology Research Institute (ITRI), Taiwan
=================================================
From: Chao_Ming Chang
[mailto:Lepidus_Chang@MTK.COM.TW]
Sent: Saturday, March 03, 2007 2:55 PM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: [STDS-802-16] Question on unsolicited MOB_SCN-RSP message.
(16e-2005)
Hello all,
Regarding the MOB_SCN-RSP message defined in IEEE 802.16e-2005 and
revised in Cor2/D2
(page 144 of P80216_Cor2_D2.pdf), the Scan duration is set to be zero. In this
case,
1. Does the MS receiving MOB_SCN-RSP have to perform "MS autonomous
neighbor cell scanning" defined
in Section 8.4.13.1.3?
2. In case the answer to the first question is positive, does it applicable
only when the MS supports FBSS/MDHO?
because MS is requested to support autonomous neighbor cell scanning when it
supports FBSS/MDHO as specified in
Section 8.4.13.1.3 (page 647 of 16e-2005).
3. Would you think it is better to precisely restrict that unsolicited
MOB_SCN-RSP message is only applicable to MS which
supports FBSS/MDHO in Section 6.3.22.1.2 "MS scanning of neighbor
BSs" which defines the unsolicited MOB_SCN-RSP
message on page 144 of Cor2/D2?
4. At last, in Section 8.4.13.1.3, it said that "For autonomous scanning procedure,
the MS shall perform neighboring cell scanning
via preamble detection for neighbor cells in the same carrier frequency."
Is it the same carrier frequency with the serving BS?
Any comments or replies on the questions are highly appreciated. Thanks.
Best regards,
Lepidus.
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