7/25/2019 Advanced Multi Layer Handling

1/2

Advanced multilayer handling

Overview of BSS8123: Advanced multilayer Handling:

Advanced Multilayer Handling (AMH) concet con!i!t! of t"ree

di#erent feature!$ w"ic" all related to networ% load& '"e AMHfeature! are:

BSinitiated 'ra*c +ea!on Handover&

,-O load control&

Multilayer load control

'"e AMH rovide! t"e oerator .ot" imroved /uality and

caacity .y di!tri.uting t"e tra*c evenly over t"e networ%& ,t i!

u!eful e!ecially in multi.and (0SM 0SM 18)$ microcellularor multilayer (,ntelligent -nderlayoverlay) networ%!&

4it" t"e AMH t"e oerator can relief t"e load of t"e conge!ted

cell! and .alance t"e load over t"e networ%& '"e oerator! can

al!o direct tra*c to u!e only overlay networ% during low tra*c

eriod!$ t"u! avoiding additional "andover! .etween two layer!&

'"e AMH can al!o .e alied e*ciently wit" ,-O to avoid

conge!tion in overlay layer roviding more trun%ing gain&

'"e AMH dynamically di!tri.ute! t"e tra*c to t"e aroriate

celllayerfre/uency .and according to revailing load of t"e

networ%& ,t can redi!tri.ute t"e tra*c from conge!ted regular

layer to ot"er cell! .y !electing t"e .e!t mo.ile and cell

com.ination$ w"ic" i! li%ely to !urvive and give good /uality on

t"e new cell& 'o avoid additional "andover! .ac% to t"e "eavy

loaded cell$ t"e AMH "a! a articular enalty !y!tem& 4it" t"e

enalty !y!tem t"e mo.ile !tation! cannot .e directed .ac% to t"eoriginal "eavy loaded cell .efore t"e enalty timer i! e5ired&

,n general$ .y u!ing AMH and !etting AMH related arameter!$

oerator! can move t"e caacity .etween di#erent layer!

according to t"e revailing tra*c&

7/25/2019 Advanced Multi Layer Handling

2/2

IUO load control

,n t"i! te!t ca!e t"e idea i! t"at t"e AMH %ee! t"e 6r!t two call!

on t"e regular '+7& '"e t"ird call ma%e! an ,ntelligent -nderlay

Overlay "andover .ecau!e t"e AMH ower oad '"re!"old i!

e5ceeded& Starting from t"e t"ird call$ all t"e call! wit" ful6ll t"e

,-O condition are "anded over from B'S to !uer '+7 of target

B'S&

Multilayer load control

,n t"i! te!t ca!e t"e idea i! t"at at 6r!t t"e AMH %ee! t"e 6r!t

two call! in t"e 0SM cell& '"e t"ird call i! "anded over from

0SM cell to 0SM 18 cell$ .ecau!e t"e load e5ceed! t"e

t"re!"old& Starting from t"e t"ird call$ all t"e call! w"ic" ful6ll t"e

um.rella condition are "anded over from 0SM cell to 0SM

18 cell&