----- Original Message -----
Sent: Tuesday, July 06, 2004 7:09
PM
Subject: Re: [STDS-802-16]
[STDS-802-16-MOBILE] [Handoff] HO Ad-Hoc Consensus document, reply
comments
Given that these contributions have been out there
for a while, a reject reply comment could have been avoided. An option is to
have a short telecon tomorrow morning to see if these issues can be
addressed.
Vladimir, Phil, Mo-Han, others? - can
we resolve over email or should we try to have a call
tomorrow?
-Prakash
I received the following reply comments
requesting/requiring changes to the listed HO Ad-Hoc Consensus documents and
am seeking input on applying changes, if any, to the contributions.
These are Consensus contributions and I am reluctant to unilaterally
make changes to the documents without circulating and receiving
comments.
Document: C80216-04_146
Reply Comment: from Vladimir Yanover,
Accepted-Modified, Technical Binding
Accept the contribution with the following
changes:
1. Instead of "Length - Length of message information
within the iteration of N_NEIGHBOR in bytes" [which is not a regular format
element in 802.16] create a TLV that contains all needed fields [which are
PHY dependent]
2. In "HO Process Optimization" section list network entry
steps rather than related messages
3. State [in Remedy part] that
"Configuration Change Count" [of MOB-NBR-ADV] covers also DCD/UCD
parameters
4. Not clear why "DL Physical Frequency" [of BS] is excluded.
Is it a part of TLV Encoded Neighbor information?
5. Delete "TLV
specific" [length of TLV Encoded Neighbor information] which expalins
nothing. "Variable" is enough. BTW it appears in many places in the
standard.
Document: C80216-04_146
Reply
Comment: from Mo-Han Fong, Accepted-Modifed, Technical Binding
Add the information on service level supported
and available resource of the neighbor BS (refer to contribution
C80216e-04_224).
Document: C80216-04_144
Reply Comment: from Vladimir Yanover, Rejected,
Technical Binding
1. The contribution suggests non-contention
based MSS Initial Ranging. For that there must be a mechanism to allocate
UNICAST UL transmission opportunity for an MSS not having yet Basic CID
[e.g. using 48-bits MAC address]. Currently 802.16 lacks such mechanism, so
Remedy #1 cannot be implemented.
2. [Remedies #2-4] HMAC is a function of AK, so
success in processing of HMAC means that both sides probably use the same
AK. But it does not mean automatically that TEK state machines at both sides
are synchronized. This issue must be investigated more thoroughly and
probably more information must be exchanged to ensure complete PKM
synchronization between MSS and target BS
3. [Remedy #5] There is no relation between
establishment of IP connectivity [it is for management purpopses only!] and
transfer of network data from old BS to new BS and further to the
MSS
4. [Remedy #6,7] Language related to network
entry steps [rather than to specific messages] should be used.
5. For capabilities exchange: I didn't find any
analysis of situation when capabilities received over backbone do not fit
those of the MSS [e.g. because of transmission error or software
problem].
Document: C80216-04_144
Reply Comment: from Mo-Han Fong, Accepted-Modifed, Technical
Binding
HO Indication may not be required for non-contention based ranging
because the target BS must have known that the MSS is performing handover,
from the fact that the target BS sends a Fast_UL_ranging_IE to allocate the
UL resource.
I am sincerely dissappointed to be receiving Technical Binding comments
on a Consensus contribution that was widely distributed and available for
comment previously, with solicitation and no additional comments for at
least two weeks.
Thanks,
Phil