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Good
afternoon
We
have uploaded a contribution titled "Enhancements.to.NBR.ADV.doc".
Thanks
Masoud
Olfat
--------------------------------------------
Masoud Olfat,
ph.D.
Technology Strategist IV
Nextel Communications Inc.
Technology
Evaluation & Research
(703)433-3649 (O)
(703)675-0279
(C)
Vasu,
What
you have explained in your email, can be one of the implementation of FBSS at
the network side. I don't think there is a need to modify the over-the-air
interface to support what you have explained. The network can choose to
simulcast the data and synchornized data streams at all the BS in the active
set. However, whether to do so or not, it should not be specified in the
802.16e standard and should be left as an implementation issue. I don't think
there is anything in the 802.16e standard that prevents this
implementation.
Regards,
Mary
Mo-Han,
I
do wonder though, whether there is a potential standards impact. The
examples provided seem to assume that the current anchor will indicate the
point in the data stream, over a backhaul, from which the new
anchor should initiate transmission to the MSS. However, if the MSS is
used as a relay for this information, over the air, we may reduce the
inter-BS signaling when all BSs share (buffer) the same data. Basically, in
this scenario, the MSS informs the new anchor as to the point in
the data stream from which data transfer should
continue.
regards
Vasu
PS: Since I'm joining the discussion late, please
excuse any misunderstanding I might have of the current
protocol.
Hi Jay and Inkyu,
I echo Mary's reply below.
Regards,
Mo-Han
Hi, Jay nad
Inkyu,
This is Mary
Chion. Sorry about the late reply.
In FBSS, only one BS will be communicating with the MSS at
any time instance (the anchor BS). The BS can choose one of the BS in
the active set to be the anchor BS through MOB-BSHO-REQ/RSP
message. Once the MSS confirms the HO with MOB-HO-IND, The MSS
should only expect trasmission from the anchor BS.
Regarding the question of
which BS have the data, it's really an implementation issue, it
also depends on what kind of network architecture you will be using. If
your network architecture includes a control point for the BSs (i.e.
BSC), the control
point can buffer the data and only send to current anchor
BS. When a new anchor BS is chosen, the conotrl point will just redirect
the traffic. With distributed system, the anchor BS should be resposible for the
data. When the ahcnor BS is changed, the old anchor BS
can forward data to the new
anchor BS. The above scenarios are only examples, the implementatios can
be different from each company and should not be specified in the
standard.
Regards,
Mary
To my knowledge, all BS's in an active set share
same data for an MSS.
Am I right?
Regards,
Inkyu Paek
hanarotelecom
----- Original Message -----
Sent: Monday, August 02, 2004 5:26
PM
Subject: [STDS-802-16-MOBILE]
[Harmonization] Question for FBSS
Dear MO-han
I have a quick question for my
clarification.
I wonder which BSs are responsible for having Data
for an MSS in FBSS(Fast BS Switching).
Do all BSs in active set have to share same data
for an MSS?
OR,
Only a serving BS has data for an MSS then
forwards the data to an anchor BS?
Thanks in advance.
Best
regard.
jay
--------------------------------------------
Yongseok
(jay) Jin
Research Engineer
Standards & System
Research Group
Mobile Communication R&D Center, LG
Electronics Inc.
--------------------------------------------
Phone:+82-(0)31-450-7187
Mobile:+82-(0)11-9953-3149
Fax:+82-(0)31-450-7912
e-mail: jayjay@lge.com
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