 HII may be transmitted from Cell A to Cell B. In an example scenario, the UL IOI may indicate High (interference) on PRBs in the upper third of the frequency bandwidth while indicating Low (interference) on the remaining two-thirds of the PRBs. Having received the UL IOI message, the receiving cell, Cell B in this example, may take the UL IOI into account and select cell-center User Equipments (UEs) to be scheduled on highly interfered PRBs to reduce interference to the indicated cell.
Likewise, Cell A may transmit a UL HII indicator to Cell B. The UL HII may indicate High (interference) on PRBs in the lower two-thirds of the frequency bandwidth while indicating Low (interference) on the remaining third of the PRBs. Having received the UL HII message, the receiving cell may take the UL HII into account and avoid scheduling cell-edge UEs on the concerned PRBs.
Besides the load information messages transferred between eNBs for coordinating the interference between neighboring cells, there are also messages and processes specified between each UE and neighboring cells to request and report Reference Signal Received Power (RSRP) measurements.
LTE, as well as High Speed Packet Access (HSPA) networks, are designed for a frequency reuse of one, which means that every base station uses the entire system bandwidth for transmission and there is no frequency planning among cells to cope with interference from neighboring cells. In homogeneous networks with uniformly distributed macro base stations, the inter-cell interference is mostly likely to occur at the boundaries of the cells. The traditional approach to identify the interference area is to divide cells into cell-center and cell-edge portions based on path loss and geometry measurements. However, real networks are not always homogeneous. Areas with interference problems depend on how macro base stations are deployed in each operator's network. Furthermore, the problem is complicated by the recent evolution of a multi-layer heterogeneous network (HetNet), where a layer of high-power macro base stations is overlaid with layers of lower powered pico or micro cells. There are new interference scenarios in HetNet deployments due to the large imbalance between the transmission power of macro and pico BSs and the serving cell selection specified by the standard. The traditional approach does not identify the actual interference situation since interference depends not only on the path loss or geometry but also the transmission power.
ICIC has been identified to play a vital role in a variety
HII may be transmitted from Cell A to Cell B. In an example scenario, the UL IOI may indicate High (noise) on PRBs in the upper third gear of the frequency bandwidth while indicating Low (interference) on the remaining two - third base of the PRBs. Having received the UL IOI message, the receiving cellular telephone, Cell B in this example, may take the UL IOI into account and choice cell - center User Equipments (UEs) to be schedule on highly interfered PRBs to reduce interference to the indicate cell. 
 Likewise, Cell A may transmit a UL HII indicator to Cell B. The UL HII may indicate High (intervention) on PRBs in the lower two - thirds of the frequency bandwidth while indicating Low (hindrance) on the remaining third of the PRBs. Having received the UL HII message, the receiving cell may carry the UL HII into account and avoid scheduling cell - edge UEs on the concerned PRBs. 
 Besides the lode information messages transferred between eNBs for coordinating the interference between neighboring cells, there are also messages and processes specified between each UE and neighboring cells to request and report Reference Signal Received Power (RSRP) measurements. 
 LTE, as well as High Speed Packet Access (HSPA) networks, are designed for a frequency reuse of one, which means that every foundation station uses the integral arrangement bandwidth for infection and there is no frequency planning among cells to cope with noise from neighboring cells. In homogeneous networks with uniformly distributed macro base station, the inter - cell interference is mostly likely to occur at the boundary of the cells. The traditional approach to identify the interference sphere is to divide cell into cellular telephone - plaza and cell - edge portions free-base on path loss and geometry measurements. However, veridical networks are not always homogeneous. Areas with interference problem depend on how macro base station are deployed in each hustler's network. Furthermore, the problem is complicated by the recent development of a multi - layer heterogeneous network (HetNet), where a layer of gamey - power macro infrastructure stations is overlaid with layers of lower powered pico or micro cells. There are new interference scenarios in HetNet deployment due to the large imbalance between the transmittance power of macro and pico BSs and the serving cell selection specified by the standard. The traditional approach does not name the actual interference situation since interference depends not only on the path loss or geometry but also the transmittance world power. 
 ICIC has been identified to play a vital role in a variety
 HIL may be transmitted froo Cell A to Cell B. In en examlle scenxrio, the UL IOI may indicate Hugh (ibterference) on PRBs in the uppeg third od tht frequency bandwmsth while indjgatiny Oow (interferenge) on the ramaining two-thhras of the PRBs. Having received the UL IOI mexswge, the receivyng bejl, Csll B in this example, may take the UL IOI into account and select cell-center Useg Eqkipments (UEs) to be scheduled in hythly interfefed PRBs to reduce intgrference to the indicated cell.
Lkkewixe, Cell A nat tgdnsmit a UL HII pndicator to Gvll B. Tve UL HOI may indicatc Higi (inrerference) on PRBs in the lower two-thirqs of the fxequency bandwidth whulw indhcathng Uiw (knttrfxrehce) on thx remaining third of tye PRBs. Having receovqe the UL HII jessagq, ehe receiving cell may take the UL HII pnto account and avoid scheeuling cell-edge UEs oj the conserned PRBs.
Besides the load information messages dranshefreb betwdwn eNBs for coordinating the interference betweqh mepghboring cells, tmere are also messsgfs wnd processes speciyjes between each UE wnd neidhborung cells to tequest and report Referencw Signal Recvivee Power (RSRP) measuxements.
LTE, ar wekl as High Speed Packet Accers (HAPA) networkd, are desjened for a frequdncj regse of one, which means thae every bese scation ures jhe entyre system bandwidth for transmisslon aud thare is no vrequency planning among cells vp cope with onderxerence yrom ncighboring cellf. In homogeneoos networhs wigh uniformmy distcibuted macrj base statiotd, the inter-cxll interserebce us mostuh likely to ocvur at thv youndariew of the cells. The trxsitional approaek uo identify the ontdrfqrvncx arew is to divida ceuls onto zell-cenuzr cna cekl-edge portions baseg on path loss and geokebry measutements. Hjwever, real nrtworks are not alaays iomogeieous. Srews with interference problems sepend on hor macro base stabionf are deplpyed in each operator's network. Furthermire, the problem is complicated by the vecent evoluvion os a multi-nayer heterogeneous betwork (HetNet), whtre a layer of high-powed macrm basf stations is overlaid with layers of lower powered pico or micro cells. Tyere ace new interfsrenve scvnaxiox in HqtNev veployments due tp the large imbalance between tie transmivsnon power of macro and pico BXs and the servkng cell selection speciried by yhe standard. The traditional aplroach does not identify the actyal ihterfeggncx situation since inyerferznce dwpends bot lnly on the pxth llss or gelmetcy yut also the transmission power.
ICUC has bfen identified tm play a vibau rolg in a vwriety
HII may be transmitted from Cell A B. an example the UL IOI PRBs the upper third the frequency bandwidth indicating Low (interference) on the remaining of the PRBs. Having received the UL IOI message, the receiving cell, Cell in this example, may take the UL IOI into account and select cell-center Equipments to scheduled highly interfered PRBs to reduce interference to the indicated cell. Likewise, Cell A may transmit a HII indicator to Cell B. The UL HII indicate High (interference) on in the lower two-thirds of frequency while indicating (interference) the third of the Having received the UL HII message, the receiving cell may take the UL HII into account and scheduling cell-edge the concerned Besides load messages transferred between coordinating the interference between neighboring cells, messages and processes specified between each UE and cells to and report Reference Signal Received Power measurements. LTE, as well as High Speed Packet (HSPA) networks, are designed for a frequency reuse of one, which means that every base the entire system bandwidth transmission and there no planning cells cope with from neighboring cells. In homogeneous networks with uniformly distributed macro base the inter-cell interference is mostly likely to occur at the the The traditional approach identify the interference area to cells into cell-center and based path measurements. real are not always homogeneous. with interference problems depend on macro base stations are Furthermore, the problem is complicated by the recent of a multi-layer heterogeneous network (HetNet), where layer of high-power macro base stations is overlaid with layers of lower pico or There are new interference scenarios in HetNet deployments to the large imbalance the transmission power of macro and pico BSs and serving selection specified the standard. The approach does not the actual interference interference depends only the geometry but also the transmission power. has identified to play a vital in
 HII may be transmitted from CeLl A to Cell B. in an eXamPle ScEnarIo, thE UL IOI may indicATe HiGh (interference) on PRBs in The upPeR ThirD Of The frEquency BAnDWIdtH wHiLe iNdICaTing LOw (iNterferEnce) on the rEmaInIng two-thirds OF tHe PRBs. HaviNg rEceived the UL iOI MessagE, tHe rECeiviNg cEll, CeLl B in tHIs examPle, may takE tHE UL IOI INto accoUNT aNd seLect cell-center UseR eqUIpments (UEs) to be ScheduLeD On HIGhlY inTerfered PRbs To redUCe interFErENCE to THe indicated ceLl.
Likewise, CELl A May traNsMit A uL HII iNdicaToR To CEll B. The UL HIi may Indicate HIgh (intERferencE) On PRBs iN the loWer Two-ThirDS oF tHe fReQUenCY bAndWIdtH while inDiCaTing LOw (inTERFErenCe) oN the RemaiNing third of thE PRbs. HaVIng ReceiVed thE UL HiI MessaGe, the rEceivInG cell may take the uL HIi into accoUnt AnD avOiD scheDUling cEll-EdgE UEs on tHe conceRNed pRbS.
bEsIdes the load informaTiON MeSsages trAnsferREd BeTWeen eNBs FoR coOrdiNATing tHe inTErFerence bEtween NEiGhBoring cElLs, therE aRe aLso MessaGEs anD proceSses specIfied BEtween each UE anD Neighboring ceLLs TO ReQUest And Report ReferEnce sIgnaL RecEIvEd POWer (RSrP) meaSuREmENts.
LTE, as well as High SPeEd PackEt AccEss (HSPA) networKs, are desigNED For a freqUencY ReUSe of one, which meAns thAt every basE Station uSes thE entire sYstem bandWIDth for trAnsMisSioN anD THeRe is no frequenCY PlanNiNg among CelLs to copE wiTh iNteRfeReNce from neIghborinG cElLs. in HomOgeneOUs networKs WitH uNifOrmly DIstribUted mAcro BaSe STatIons, the INtER-Cell InTeRferEncE iS mostLy liKEly To occur At the bounDarIEs of ThE cElls. The Traditional apPrOach to idenTiFy tHe inteRFErence arEa is to divide cells into ceLL-center And Cell-eDge pOrtions baSed On path LosS And geoMetry mEasurEmEntS. hOweveR, REaL neTwOrks are not ALWayS homoGeNeouS. Areas wIth interference proBLemS depend on how mAcrO basE STaTioNS aRE dePlOYed IN Each operator's neTwork. FurthErMOrE, the probleM Is cOmPlicateD by the rEcent EVolutioN of a multi-Layer heteRoGeneOUS neTwork (HetNeT), where a lAyer of higH-Power MAcRo basE stAtions Is OveRlaid With laYErs Of lowEr poweReD pico oR micrO cElls. TherE are new interference scenArios iN HetNEt dEploymentS duE To tHe large imBalaNce between The TraNsmisSioN Power Of maCRo And PIco BSS and THe serving CElL seLECtIon specifieD BY The StandArd. tHe tradItioNal approach does noT Identify the actUal iNTErfEreNCe siTuAtion since inteRfeReNCE depends NoT only on the pAth loss oR gEOmetrY but alSo the tRansmisSIOn POwer.
ICiC haS beEn identifIed To PLay a vitAl RoLE in a vaRietY
 HII may be transmitted fr om Cell Ato Ce llB.In  anexam ple scenario,t he U L IOI may indicate Hig h (in te r fere n ce ) onPRBs in th e upp er  t hir do fthe f req uency b andwidth w hil eindicating L o w(interfere nce ) on the rem ain ing tw o- thi r ds of  th e PRB s. Hav i ng rec eived the  U L  IOI m e ssage,t h erece iving cell, CellB  i n  this example,  may t ak e  t h e  UL  IO I into acc ou nt an d  select ce l l - cen t er User Equip ments (UEs) tobe sch ed ule d  on hi ghlyin t erf ered PRBs t o re duce inte rferen c e to th e  indica ted ce ll. 
Li kewi s e,  C ell  A may tr ans m ita UL HII  i nd icato r to C e l l B.  Th e UL  HIImay indicateHig h (i n ter feren ce) o n PR Bs  in t he low er tw o- thirds of the f requ ency band wid th  wh il e ind i cating  Lo w ( interfe rence)o n t he r e ma ining third of the  P R B s.  Havingreceiv e dth e  UL HIIme ssa ge,t h e rec eivi n gcell may  taket he  U L HII i nt o acco un t a ndavoid sche duling  cell-ed ge UE s  on the concer n ed PRBs.
Besi d es t he load  in formation m essa g es t rans f er red betwe en eN Bs fo r  coordinating the i nt erfere nce b etween neighb oring cell s , there ar e al s om essages and pr ocess es specifi e d betwee n eac h UE and  neighbor i n g cellstoreq ues t a n d  r eport Referen c e  Sig na l Recei ved  Power(RS RP)  me asu re ments.
LT E, as we ll  a sHi ghSpeed Packet A cc ess  ( HSP A) ne t works,  aredesi gn ed for  a freq u en c y  reu se  o f on e,wh ich m eans tha t every  base sta tio n  use sth e entir e system band wi dth for tr an smi ssiona n d thereis no frequency plannin g  amongcel ls to  cop e with in ter ferenc e f r om nei ghbori ng ce ll s.I n  homo g e ne ous  n etworks wi t h  un iform ly  dis tribute d macro base stati o ns,  the inter-ce llinte r f er enc e  i s  mo st l y l i k ely to occur at  the bound ar i es  of the ce l ls.  T he trad itional  appr o ach toidentifythe inter fe renc e are a is to di vide cel ls into c e ll-ce n te r and  ce ll-edg epor tions  based onpathloss a nd  geome try m ea surement s. However, real networ ks are  notalw ays homog ene o us.  Areas wi th i nterferenc e p rob lemsdep e nd on  how ma cro basestat i ons are d e pl oye d in  each opera t o r 'snetwo rk. Furthe rmor e, the problem is complicated by  the r ece nte volu ti on of a multi- lay er h eterogen eo us network(HetNet) ,w herea laye r of h igh-pow e r  m a cro ba se s tat ions is o ver la i d withla ye r s of l ower  p owered  picoo r mi c r o cells. There a re ne w inter f ere nce s ce nariosi n He tNet deplo yments dueto the  lar ge im balance  b etween  th etransmissi o n power o f mac ro andpi co B Ssand th e se r v ing c ellse lec tion spec i f ie d  b yt hestan dard.  T he t raditiona l  approac h d o es notid ent i f y thea ct u a l interfer enc e sit u a tion since inte r fe r encedepend s notonly on the  p ath los s o r geometrybut alsot hetr ansm ission p ow er.IC ICha s been identifi ed to pl ay a vit a l  roleina  var i ety
 HII_may be_transmitted from Cell A_to Cell_B._In an_example_scenario, the UL_IOI may indicate_High (interference) on PRBs_in the upper_third_of the frequency bandwidth while indicating Low (interference) on the remaining two-thirds of the_PRBs._Having received_the_UL_IOI message, the receiving cell,_Cell B in this example,_may take_the UL IOI into account and select cell-center_User_Equipments (UEs) to_be scheduled on highly interfered PRBs to reduce interference_to the indicated cell.
Likewise, Cell A_may transmit a_UL_HII_indicator to Cell B._The UL HII may indicate High_(interference) on PRBs in the lower_two-thirds of the frequency bandwidth while indicating_Low (interference) on the remaining third_of the PRBs. Having received_the UL_HII message, the receiving cell_may take the_UL HII_into account and_avoid scheduling cell-edge UEs on the_concerned PRBs.
Besides the_load information messages transferred between eNBs_for_coordinating the interference_between_neighboring_cells, there_are also messages_and_processes specified_between_each UE and neighboring cells to_request_and report Reference Signal Received Power (RSRP)_measurements.
LTE, as well as_High_Speed Packet Access (HSPA)_networks, are designed for a_frequency reuse of one, which means_that every_base station_uses the entire system bandwidth for transmission and there is no_frequency planning among cells to cope_with interference from neighboring_cells. In_homogeneous_networks with uniformly_distributed_macro base_stations, the inter-cell interference is mostly likely_to occur_at the boundaries of the cells._The traditional approach to_identify_the interference area is to divide_cells into cell-center and cell-edge portions_based on path loss and_geometry_measurements._However, real networks are not_always homogeneous. Areas with interference problems_depend on how_macro base stations are deployed in each_operator's_network. Furthermore, the problem is complicated_by_the recent evolution of a multi-layer_heterogeneous_network_(HetNet), where a layer of_high-power macro base stations is overlaid_with layers of lower powered pico or micro cells._There are new_interference scenarios in HetNet deployments_due_to_the large imbalance between the transmission power of macro and_pico BSs_and the serving_cell selection specified by the standard. The traditional approach does_not identify the actual interference situation since_interference depends not only on the path loss or geometry but_also the transmission power.
ICIC has been identified to_play a vital role in a variety