The following values are derived from this parameter:
If (ATT 0) then
p-p,min 15,360 chips (3 ASs)
p-a 7680 chips
p-m 15,360 chips (3 ASs)
If (ATT 1) then
p-p,min 20,480 chips (4 ASs)
p-a 12,800 chips
p-m 20,480 chips (4 ASs)
Note that the time available for the UE to reliably detect the AI on the AICH and prepare the uplink
transmission for the PRACH message part is denoted as D and defined as
(chips) (7.61)
The DPCH timing may be different for different DPCHs. The frame offset from P-CCPCH is a
multiple of 256 chips, , where . Similar comments can
be made for the F-DPCH channels.
As discussed above, the P-CCPCH indirectly acts as a timing reference for the uplink because of
the constant offset between the uplink and the downlink. At the UE side, the uplink DPCCH/DPDCH
frame transmission takes place approximately 1024 chips after the reception of the first detected path
(in time of arrival) of the corresponding downlink DPCCH/DPDCH or F-DPCH frame.
Cell Geometry Definition (G). In the WCDMA 3G digital cellular standard, all downlink physical
channels are allocated a fraction of the total available downlink power. The total transmitted power
Ior consists of contributions from common, shared, and dedicated channels.
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