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SIB7 Broadcast RTWP Optimization

edu!e t"e #$i%e o& t"e $'ea()le o$en*loo$ $owe' !ont'ol on t"e u$lin% TWPin ACH initial a!!e##, e#$e!iall+ in "ig" load #!ena'io#. T"e TWP in SI- i#)'oad!a#t in 'eal ti(e. I& +ou 'edu!e t"e TWP in SI-, t"e ee!t i# e##entiall+t"e #a(e a# t"at o& 'edu!ing t"e Con#tant /alue. ot" a'e &o' 'edu!ing t"e UE$owe' o& t'an#(itting t"e f'#t $'ea()le.

Gain0 A&te' t"e TWP /alue oi# o$ti(ied on t"e o2!e in !a/e'age TWP /alue i# 'edu!d.

RACH

BCH: CPICH ch

UL interf

UE measure CPICH

calculate the UL initi

P'ea()le4Initial4Powe' 5 PCPICH DL T6 $owe' *CPICH4SCP 7 UL inte'&e'en!e7 Con#tant 8alue

SIB 7)System Information Message

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Features License

Activation

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License Activation

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CCIPC Phase I and Phase II

Mass low rate users in cell

Strong intererence

rom contro! channe!

CCPIC is Control Channel Parallel Interference Cancellation

Large number of low rate users in one cell brings

strong intererence

Cell capacity gravely falls due to strong interferences

by large number of users

"p!in# Capa$i!it% Cha!!enges Reducing the Intererence o Contro

1

3

2 1

User 2 and 3 are

interferences for user 1Interferences o

removed befor

&S

Feature o Fe

CCPIC phase I support cance!!ation in one $a

CCPIC phase II support cance!!ation in (ho!e c

)ua(ei is the O*L+ vendor that rea!ize CCPIC (ith se!'design chipset

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Intererence Cance!!ation ,IC Ce!! *um-

E-DPDCH IC

E*DPDCH IC in!'ea#e# t"e u$lin)+ !an!eling inte'&e'en!e &'o(

E*DPDCH IC now i($le(ent# one*#tage PIC on t"e WPd )oSIC on t"e WP& )oa'd.

Ha'dwa'e 'e