Some usages of IDs in UTRAN(Sharing)

Some usages of IDs in WCDMA(25.304,25,331)
+T:\ m/ZT2S0
|Pt@"X)O6r4B0 How to select a PRACH when UE access system?
CJ[^7E|3A L!y0 --->"Index of selected PRACH" = floor (rand * K)
@&fbS%X?Dr^0 中国通信网－无限分享
[:T5g-W
lq"p
James's comments:  UE can select a PRACH to access randomly.
8vn0f%^t#r0Vs1S0
;P7^4md|LJ[{B0
.z7|]-N5H(w+[t.f0 中国通信网－无限分享'XVD3s p5N
yxa
中国通信网－无限分享0`7z:n\%K
How to selecet FACH by UE?(RRC Connected State)中国通信网－无限分享
V*i-q!}*z
--->"Index of selected SCCPCH" = U-RNTI mod K
:}"xp+}%^-`Q#wy0 中国通信网－无限分享b{,LB,m7o2e
James's comments: UE will listen the S-CCPCH by it's U-RNTI mainly.
g/Xw(Yb.K|/HZZ8?7c0 中国通信网－无限分享~[2F(}9Qmu
中国通信网－无限分享W.zI6d|#rbO)a

NHf)@
Nc0 中国通信网－无限分享#U(q.x;Z#d
SCCPCH selection when entering Connected mode from IDLE?中国通信网－无限分享ZeBw%QLW4y
--->"Index of selected SCCPCH" = "Initial UE Identity" mod K中国通信网－无限分享;I x9H n*L/Xli+q6}

#Q4a0H%wZ zB0 James's comments: UE will decode the FACH on the S-CCPCH related with the adopted initial UE ID mainly中国通信网－无限分享8@4G^A iv

yF f6r/^Y.kP0 中国通信网－无限分享+r%g;_/`c*G&g`

&zF5Znh!lcx0
G,o,\6yN0 FACH measurement occasion calculation(CELL_FACH)中国通信网－无限分享\e:j!En
--->SFN div N = C_RNTI mod M_REP + n * M_REP
K'Pc,td.~0of0
shL1LL6E,ZK AV0 James's Comments: UE will measure other frequencies by this occasion related with its C-RNTI mainly.
fJ|~)h#{)d;`0
aX%`#ictD9f,g[0
6epKw!@s0 中国通信网－无限分享l&nxI1Hf;B-z
中国通信网－无限分享8WQ/a8j/k
Paging Channel selection
9`;xSA#S#C"Q0 --->"Index of selected SCCPCH" = IMSI mod K
AY@0| w4mc0rC+H0 中国通信网－无限分享6d'ui+H.o1p4f
James' Comments: UE will listen PCH related with its IMSI mainly.