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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
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