ADMISSION CONTROL I VI VENDOR ZTEI. Mc chThut ton admission control c thc hin nhm mc ch sau: Xc nh xem mt dch v mi c c chp nhn cho truy cp hay khng da trn yu cu ti nguyn ca dch v v lng ti nguyn ang s dng trn h thng nhm mc ch trnh qu ti v bo m tnh n nh ca h thng. Cho php truy cp cng nhiu dch v cng tt nu ti nguyn cho php, nhm mc ch s dng ti a ti nguyn ca h thng v m bo QoS ca cc UE.Mt dch v mi yu cu ti nguyn bao gm: Radio Resource Control (RRC) connection setup. Radio Access Bearer (RAB) setup. RAB modification. Serving Radio Network Controller (SRNC) relocation. Handover over Iur interface. Intra-RNC handover. Dynamic channel allocation. Khi nhn c yu cu 1 dch v mi, RNC s:(1) La chn kiu knh truyn theo thuc tnh ca dch v (Traffic Class, Maximum bit rate ) v kh nng ca thit b (kh nng ca UE v cell).(2) Thc hin qu trnh a ra quyt nh admission da trn tnh ton ti nguyn ca knh truyn bao gm ti nguyn hin ti ca cell v ti nguyn yu cu ca dch v mi.Khi mt dch v mi yu cu ti nguyn, RNC cn xem xt n cc loi ti nguyn sau ca cell: nhiu UL, cng sut ng DL, ti nguyn code, ti nguyn CE v s UE ang s dng trong cell, v xem xt ton b ti nguyn ca h thng hin ti trc khi quyt nh trnh vic khng ti nguyn v qu ti cell khi chp nhn dch v.II. NI DUNG THUT TON ADMISSION CONTROL1. R99 ADMISSION CONTROL1.1. DCH Admission ControlDCH admission control xem xt n 4 yu t sau: CE-based DCH admission control. Uplink interference-based DCH admission control. Downlink power-based DCH admission control. Downlink channelization code-based DCH admission control. Nu thut ton admission control hot ng, vic t chi dch v theo thut ton admission vi bt k nguyn nhn no trong 4 yu t trn s dn n t chi dch v; dch v c chp nhn trn knh DCH khi v ch khi n tha mn iu kin admission vi c 4 yu t. i vi tn hiu kt ni RRC, cc gii hn v nhiu UL, cng sut downlink, Node B CE, s code v s knh kt ni RRC s c xem xt n.1.1.1. CE Admission ControlULTotalCost + N*ULCost2+ULCost1 UL Capacity Credithoc DLTotalCost+ N*DLCost2+DLCost1 DL Or Global Capacity CreditTrong , UL(DL)TotalCost l tng lng CE ang s dng trn ng UL (DL) UL(DL)Cost1 l lng ti nguyn CE cn s dng cho RLS (thit lp mi). UL(DL)Cost2 l lng ti nguyn CE cn s dng cho RL (HO sang). N l s code.1.1.2. Uplink Interference-based Admission Control Ngng nh gi:Ithreshold= N0+ DchUlAcThreshN0 l cng sut nhiu nn v nhiu bi thit b thu trn ng UL, gi tr ny ly l OriBckNoise (nu BckNoiseAdjSwh t l OFF) hoc ly t o c nn nhiu UL t ng (nu BckNoiseAdjSwh t l ON).DchUlAcThresh l ngng UL admission (%) v c xc nh theo cc bc nh trong hnh di:

i. Ly gi tr LoadScene, BpriAcIndex (utranCell) t Utran Cell (utranCell).ii Ly gi tr BasicPrio t Basic Priority Management (BasPri ).

iii Ly gi tr DchUlAcThresh t Access Control Related to Basic Priority (BPriAc) da trn BpriAcIndex(BPriAc) v BasicPrio.

Khi yu cu 1 dch v th lng nhiu tng thm 1 lng:

Trong , Itotal ly t bn tin o c ca NodeB (RTWP). = 1 - N0/Itotal N0 l cng sut nhiu nn v nhiu bi thit b thu trn ng UL, gi tr ny ly l OriBckNoise (nu BckNoiseAdjSwh t l OFF) hoc ly t o c nn nhiu UL t ng (nu BckNoiseAdjSwh t l ON). Load estimate factor , W=3.84e6 [bit/s]. l active factor (Value: 1). UlInterFactor l h s lin quan n nhiu UL ca cell ln cn i vi cell ang xt (gi tr hin ti l 0.5) =10^((Eb/N0 )/10 )

R l target rate m mt dch v c chp nhn Nu Itotal +I >Ithreshold, cell s b hn ch bi nhiu sau khi chp nhn mt dch v mi, do dch v mi s b t chi vi nguyn nhn DCH Uplink Interference Limit (DCH_UL_RTWP_LIMIT).1.1.3. Downlink Power-based Admission ControlNgng admission cng sut ng xung c tnh theo cng thc: Pthreshold= MAXDlTxPwr* DchDlAcThreshTrong : MAXDlTxPwr l cng sut truyn ln nht trn ng DL (dBm) ca cell. DchDlAcThresh l downlink admission threshold (%) v c xc nh theo cch di y:

i Ly gi tr LoadScene, BpriAcIndex (utranCell ) ca cell t Utran Cell (utranCell). ii Ly gi tr BasicPrio ca dch v t Basic Priority Management (BasPri ). iii Ly DchDlAcThresh t Access Control Related to Basic Priority (BPriAc) da trn BpriAcIndex(BPriAc) v BasicPrio. Khi yu cu 1 dch v mi, lng cng sut tng ln c tnh theo cng thc:

Quyt nh downlink power admission: Nu Ptotal +P>Pthreshold, cell b gii hn cng sut nu chp nhn mt dch v mi, do dch v mi ny b t chi vi nguyn nhn DCH Downlink Power Limit (DCH_DL_TCP_LIMIT)1.1.4. Downlink Channelization Code-based Admission ControlNu mt dch v yu cu ti nguyn code trn ng xung, v NodeB khng c kh nng cung cp, th quyt nh admission s a ra nguyn nhn Code Resource Limit, v yu cu dch v s b t chi; mt khc, nu DlCacSwitch ch OFF (Channelization code admission lc ny do RNC quyt nh), channelization code admission c chp nhn (mi ch chp nhn nhn NodeB); nhng khi RNC s thc hin nh gi: nu s lng code cn li sau khi phn b ti nguyn code ln hn ngng (CodeTreeResRto) th channelization code admission c chp nhn; ngc li, dch v s b t chi vi nguyn nhn Code Resource Limit (DCH_NO_CHCODE).Trong , CodeTreeResRto c xc nh da trn Basic Priority. BP c xc nh bng cch mapping ARP v service class khi yu cu RAB1.1.5. UE RLC Capability-based Admission ControlTrong khi thit lp hoc cu hnh li RB, kh nng truy cp v tuyn RLC ca UE khng vt qu kh nng ca UE.a. Maximum number of AM entitiesNu NRLCAMold+NRLCAMnew NRLCAMmax, dch v s c thit lp thnh cng.Mt khc, n s b t chi (NRLCAMold + NRLCAMnew > NRLCAMmax)Trong , NRLCAMold l s RLC AM entities hin ti ang s dng. NRLCAMnew l s cc RLC AM entities mi. NRLCAMmax l nng lc Maximum number of AM entities ca UE.b. Maximum RLC AM Window Sizei vi cc dch v ch CELL_DCH, RLC window (tng ng gia tc v RLC window c lit k trong bng di) ng vi tc bt ca radio bearer phi nh hn kh nng ca UE - Maximum RLC AM Window Size.

c. Total RLC AM v MAC-hs buffer sizeKch thc b m i vi tt c cc dch v trn ng UL v DL s khng c vt qu gi tr Total RLC AM v MAC-hs buffer size ca UE.i vi RB kiu AM th i: TxWSi l uplink RLC transmit window; UPduSi l uplink PDU size (khng bao gm AM PDU header); RxWSi l downlink receive window; DPduSi l downlink PDU size (khng bao gm AM PDU header); N s RLC AM entities hin c trn UE, kch thc b m AM RLC hin ti, BSizeold, c tnh theo cng thc sau:

i vi RB kiu UM th m c thit lp trn knh HS-DSCH trng thi CELL_DCH, Gbrm l Guaranteed Bit Rate ca dch v, MachsWinSizem l MAC-hs Window Size ca service priority queue, yu cu b m UM_Reordering ti thiu ca tt c cc dch v RLC UM HS-DSCH l:

(Lu : khong gi tr ca MAC-hs Reordering Buffer Size i vi RLC-UM theo 3GPP l (0..300,)kBytes, do vy cch tnh min(300, ) l cn thit, trong UMReorderBuffReqm= Gbrm*2*0.001*MachsWinSizem

Thit lp RB kiu AM mi: BSizetotal l Total RLC AM v MAC-hs buffer size theo nng lc ca UE; TxWSnew v RxWSnew ln lt l uplink transmit v downlink receive window sizes ca RB mi; UPduSnew v DPduSnew ln lt l uplink v downlink PUD sizes (khng bao gm AM PDU header) ca RB mi. Nu BSizetotal - BSizeoldMinUMReorderBuffReq TxWSnewUPduSnew+ RxWSnewDPduSnew Th RB RLC Buffer admission c chp nhn. Ngc li, quy tc Reference Bit Rate Decision for Radio Bearer s c s dng gim RLC window. Thit lp RB kiu UM mi trn knh HS-DSCH trng thi CELL_DCH, nu BSizetotal - BSizeold MinUMReorderBuffReqnew0, th RB RLC Buffer admission s c chp nhn. Ngc li, quy tc Reference Bit Rate Decision for Radio Bearer s c s dng gim RLC window.d. Reference Bit Rate Decision for Radio Beareri vi dch v mi (bao gm RAB SETUP and RAB Modify), s dng thng s RLC ca tc bt tham chiu tnh xem liu nng lc Maximum RLC AM Window Size v Total RLC AM and MAC-hs buffer size ca UE c b gii hn hay khng. Khi nng lc Maximum RLC AM Window Size v Total RLC AM and MAC-hs buffer size ca UE b gii hn, tc data s b gim xung vi c dch v mi v c, sau tnh li xem liu nng lc Maximum RLC AM Window Size v Total RLC AM and MAC-hs buffer size ca UE c b gii hn hay khng. C ngha l, tc data vi cc thng s RLC s c thc hin tng bc di y vi c dch v mi v c ti tn khi dch v mi c chp nhn: (1) dch v mi: maximal reference rate; on-line service: current reference rate (2) dch v mi: 1/2 maximal reference rate; on-line service: min(1/2 maximal reference rate, current reference rate) (3) dch v mi: 1/6 maximal reference rate; on-line service: min(1/6 maximal reference rate, current reference rate) (4) dch v mi: the minimum rate level of DRBC; on-line service: min(the minimum rate level of DRBC, current reference rate) Vic tng tc truy cp xy ra trong cc trng hp sau:(1) Khi c dch v c gii phng: nu c dch v PS c gii phng, th dch v PS cn li ca UE bao gm dch v c BP cao nht v dch v c tc tham chiu RLC thp hn tc tham chiu ln nht s c la chn tng tc truy cp (nu nhiu hn 1 dch v PS tha mn, th dch v yu cu tng tc t hn s c la chn; nu c nhiu hn mt dch v nh vy th dch v bt k s c la chn). Cc bc tng tc c th nh sau: u tin c gng tng ln n tc tham chiu ln nht, nu b gii hn, tng ln n tc max(1/2 tc tham chiu ln nht, tc tham chiu hin ti); nu b gii hn, tng ln n tc max(1/6 maximal reference rate, tc tham chiu hin ti); nu b gii hn th ngng vic tng tc .(2) Event 4A triggered: i vi event 4A, u tin c gng tng ln tc tham chiu ln nht, nu b gii hn tng ln tc max(1/2 tc tham chiu ln nht, tc tham chiu hin ti); nu b gii hn, tng ln tc max(1/6 maximal reference rate, tc tham chiu hin ti); nu vn b gii hn, ngng vic cp nht (Ch : ch p dng cho Event 4A HS/E v HS/D) Ch : khi gim tc tham chiu ln nht xung cn 1/2, 1/6 hoc mc tc nh nht theo DRBC, UL v DL u b gim xung i vi dch v HS/E v D/D, ch gim DL i vi dch v HS//D, Trong , tc tham chiu ln nht c tnh theo cng thc sau: i vi R6 UE: min(MaxBR, tc ln nht m UE h tr) i vi c ng UL v DL. i vi R5 UE: min(MaxBR, tc ln nht m UE h tr) cho ng DL, min(MaxBR, tc ln nht theo DRBC) cho ng UL. i vi R99 UE: min(MaxBR, tc ln nht theo DRBC) i vi c ng UL v DL.Minimal rate of DRBC =min( max(the minimum rate level of DRBC, GBR), MaxBR), trong , GBR l GBR ca RAB c s dng cho streaming traffic class; GBR bng 0 i interactive and background traffic class, MaxBR l tc bt ln nht ca RAB ASSIGNMENT v RAB Negotiation. Table 3-4 lit k tng ng gia tc dch v v RLC window.

Ch : i vi cc dch v R99, the maximum DCH rate allowed ch l 384K. Nu MBR ca dch v trn ng downlink trn knh DCH ln hn 384kbps, RLC parameter c ly l 384kbps; nu nh hn 384kbps, RLC parameter l MBR.1.1.6. UE Number-based Admission Controli vi trng thi Cell_DCH, ch RRC CONNECTION SETUP ca CELL_DCH 3.4k, 13.6k, 27.2k signaling b gii hn bi User Number. Nu RRC CONNECTION signaling trng thi Cell_DCH ln hn hoc bng RrcSigUsrNumThr (hin t =200), RRC CONNECTION SETUP signaling mi s b t chi truy cp vo cell trng thi CELL_DCH do b gii hn bi User Number; ngc li RRC CONNECTION SETUP mi s khng b hn ch vo trng thi CELL_DCH do User Number.1.2. AMR Traffic Re-admission after AMR Rate Decrease while soft resources limited Khi uplink/downlink AMR truy cp vi tc MaxBR: Nu truy cp b t chi do ti nguyn phn cng (nh WALSHCODE, CE), th nghn s c y ra. Nu truy cp b t chi bi cc ti nguyn mm (nh downlink power, uplink interference): Nu AmrDnRateAcSwch bt, khi dc v AMR s c gng truy cp vi tc ti thiu: Nu dch v c th truy cp, uplink TFC Control s c thc hin i vi UE v downlink data rate control s c thc hin bi Iu signalling. Nu dch v khng th truy cp, nghn s c y ra Nu AmrDnRateAcSwch tt, nghn s c y ra 2. FACH Admission Control2.1. FACH Load-related MeasurementUE active factor c gi ln RNC user plane xc nh ti ca knh FACH v nh k gi bo co ln RNC control plane. User plane thc hin o c tc lin quan n trng thi Cell_fach trong cc bn tin nh k, vi phng php o c nh sau: ra kch thc Slide_Window_Size (280 ms) ca ca s trt c s dng ch ra UE ang hot ng trng thi Cell_fach. User Buffer Size trong khung yu cu ch nh ti nguyn u tin (FACH CAPACITY REQUEST hoc FACH DATA FRAME) ca UE c ghi li bi user plane ti cc thi im nh k iu khin lung (80ms) trong slide window (Slide_Window_Size) l UserBufferSizeiFirst, v User Buffer Size trong khung yu cu ch nh ti nguyn cui cng ca (FACH CAPACITY REQUEST hoc FACH DATA FRAME) ca UEi trong ca s trt UserBufferSizeiLast. User plane tnh ton tc d liu trung bnh Bitratei ca cc SDU nhn c bi entities MAC-C t UEi trong ca s trt (Slide_Window_Size) trong qu trnh FACH admission hoc quyt nh cn bng ti. Vi mi UE trng thi Cell-fach, user plane tnh ton h s active (LA) theo phng trnh di y trong qu trnh Fach admission hoc quyt nh cn bng ti:UEi active factor (LAi)= Ti Fach hin ti = Trong , N l tng s UE active trng thi Cell-fach v c DTCHLAi l h s active ca UEi trng thi Cell-fach.2.2. nh gi dung lng ca FACHThng s UE active factor c nh ngha nh gi ti FACH v o lng tc d liu lin quan ca UE trng thi Cell_Fach. Thng s Maximum SCCPCH Active Factor c nh ngha o dung lng ca FACH. Maximum SCCPCH active factor l cc gi tr lin quan n tc truyn ln nht ca SCCPCH mang knh FACH v tc ti thiu cho php ca ngng admission FACH

Trong , FACHCacLASCCPCH l Maximum SCCPCH active factor.2.3. Quyt nh FACH AdmissionNu mt dch v c mang trn knh FACH, RNC nh gi theo cng thc di y thc hin quyt nh admission:

Nu cng thc trn cn ng, dch v s c chp nhn, ngc li, dch v s b t chi.2.4. Qu trnh tip theo sau khi b reject do admissioni vi cc dch v v cc mc QoS khc nhau, dch v yu cu s khng b t chi lun do khng m bo ti nguyn; thay vo , h thng s thc hin cc qu trnh: ngt kt ni hin ti, hng i v cc chin thut re-scheduling cho dch v da trn cc yu cu v tr v mc u tin tng t l thit lp. C th, xem trong phn Congestion control Feature Guilde.3. HSDPA Admission Control3.1. o c ti NodeB3.1.1. o c cng sut ng xungVic iu khin qu trnh admission cng sut ng xung HS-DSCH cn phi c cc thng tin o lng thng thng ti NodeB lin quan n cng sut HSDPA, bao gm cng sut HS-DSCH c yu cu, v cng sut sng mang c truyn i ca tt c cc code khng c s dng cho HS-PDSCH hoc truyn HS-SCCH (tng t vi TCP i vi dch v R99). Do , cc o c trn phi c bt u ng thi trong cc cell HSDPA. Cc phng php o c v thay i l tng t vi dch v R99. Nhng trc tin cn xem xt cc khai bo sau: Trng thi ca cell (HspaSptMeth (utranRelation)) l Support HSDPA v DCH, Support Only HSDPA, Support HSUPA, HSDPA v DCH, hay Support HSUPA v HSDPA Ti nguyn HSDPA (ti nguyn HS-PDSCH v HS-SCCH) c phn b v thit lp.Chu k cc o lng trn c iu khin bi thng s RptPrdUnit(NbCom) v RptPrd(NbCom)3.1.2. HS-DSCH Admission ControlNu ti nguyn HS-DSCH cn s dng, Admission Control phi c p dng cho bt k dch v yu cu no, bao gm thit lp RAB hoc modification, relocation, handover v chuyn knh. Nu cell h tr c dch v HSDPA v R99, cc nh hng ti thut ton DCH admission cng cn c quan tm.3.1.2.1 Node B Support Capability-based Admission ControlNodeB mang thng tin ti nguyn HS-DSCH bao gm Resource Operational State v HSDPA Capability trong bn tin AUDIT RESPONSE; nu thng tin v ti nguyn HS-DSCH Resource Operational State l Disabled hoc HSDPA Capability l HSDPA non Capable, HS-DSCH ca cell s b t chi nu c dch v mi c yu cu v y ra nguyn nhn l Node B Support Capability Limit (HS _NOT_AVA ILABLE )3.2. UE Numbers-based Admission ControlNu qu nhiu UE cng chia s knh HS-DSCH c th lm gim UE QoS. Mc d theo l thuyt, mt cell h tr truy cp ln nht 230 HSDPA UEs, truy nhin khi throughput trung bnh mi UE s thp hn 10Kbps, nu 1 cell c 64 HSDPA UE truy cp, throughput trung bnh mi UE l khong 100Kbps. Nh cung cp mng c th t mt cch thch hp s lng UE ln nht (HsdschTrafLimit) c th c mang trn knh HS-DSCH ca mi cell. Cc UE mi s dng knh HS-DSCH s khng c chp nhn vi nguyn nhn HS-DSCH UE Numbers Limit (HS _USE R_LIMIT) nu s UE trn knh HS-DSCH vt qu HsdschTrafLimit; ngc li, UE s c chp nhn.3.3. Data Throughput-based Admission ControlQu trnh Air interface data throughput admission decision nh sau: Mi ln sau khi chp nhn mt UE, RNC tng tc bt c bo m ca UE; trong , TotalRate l tng tc bo m ca cc UEs ang truy cp; MachsGuaranteedBitRatei l tc bo m ca mi UE v i l s UEs (i = 1NumS, NumS); Khi mt HS-DSCH UE b released hoc chuyn sang trng thi DCH, tc ca UE c tr i khi TotalRate. Khi mt UE mi yu cu phn b ti nguyn, admission control a ra quyt nh da trn cng thc sau:TotalRate+New Machs Guaranteed Bit Rat > Threshold for data throughput carried on HS-DSCHNu cng thc trn ng, UE s khng c chp nhn vo knh HS-DSCH vi nguyn nhn l HS Throughput Limit (HS_TRAFFICVOL_LIMI T); ngc li, n s c chp nhn.Trong , Threshold for data throughput carried on HS-DSCH = HspdschBitRate (available transmit rate of one HS-PDSCH) The number of HS-PDSCHs c cu hnh cho cell.3.4. Downlink Power-based Admission ControlTnh ton HS-DSCH downlink power admission threshold: Pthreshold= MAXDlTxPwr* HsdpaAcThresh;Trong ,MAXDlTxPwr l maximum transmit power ca cell. HsdpaAcThresh l HSDPA downlink admission threshold (%) v c th tm theo cc bc sau: i. Ly LoadScene, BpriAcIndex ca cell (utranCell) t Utran Cell (sheet utranCell ). ii. Ly BasicPrio ca dch v t Basic Priority Management (sheet BasPri). iii. Ly HsdpaAcThresh t Access Control lin quan n Basic Priority (BPriAc) da trn BpriAcIndex(BPriAc) v BasicPrio

c lng phn cng sut tng ln P[mW] (Phng trnh di y ch p dng i vi cc dch v GBR; i vi cc dch v I/Background, P=0).

Quyt nh: Nu HSDPA c ch nh bi RNC(HsdschTotPwrMeth=0 hoc 1), v tng cng sut HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH v E-HICH c ch nh bi RNC < max(MinHsdpaTotalPower, P + HSDSCHRequiredPowerSpi), th HS-DSCH downlink power admission control t chi yu cu dch v mi; ngc li s t chi dch v.Trong MinHsdpaTotalPower=MaxDlTxPwr*MinHspaPwrRto Nu HSDPA c ch nh bi NodeB (HsdschTotPwrMeth=2), v

th HS-DSCH downlink power admission control t chi dch v yu cu vi l do Downlink Power Limit (HS_RQDPWR_LIMIT), ngc li s chp nhn yu cu dch v.trong NoHsdchPower v HsdschRequiredPowerSqi ly t cc bo co o c thng thng ca NodeB.Nu c mt s GBR cng yu cu truy nhp ng thi trong mt chu k bo co o c TCP, th admission control cn phi d on phn tng cng sut P v tnh tng vo P cho cc dch v , nu traffic gim xung gia 2 chu k o c, ti gim t vic gim traffic s c gim xung i vi ti ca cell.3.5. Admission Control of Associated DPCH carrying Signaling3.5.1. Downlink Channelization Code-base Admission ControlKhi s dng knh HS-DSCH mang dch v, UE dng dch v HSDPA cn Associate DPCH (A-DPCH) mang knh bo hiu RRC v thng tin iu khin cng sut. SF 256 c s dng cho A-DPCH, nn ti nguyn code vn v hn ch i vi A-DPCH. F-DPCH c gii thiu trong phin bn R6 10 UE HSDPA c th chia s mt t m OVSF vi SF256 nhng ti nguyn code c th vn b hn ch khi c s lng UE vt qu, c bit l trong trng hp m dch v HSDPA v R99 cha s cng mt tn s sng mang. Quyt nh downlink Channelization Code-base Admission Control ging vi dch v R99.3.6. Impact on DCH Admission Control3.6.1. Downlink Power-based Admission Control Cch xc nh ti HSPA downlink ca cellRNC nh gi ti downlink (TCP_Load) ca cell da trn cng sut sng mang truyn i ca tt c cc code khng s dng knh HS-PDSCH hoc HS-SCCH v cng sut yu cu knh HS-DSCH c bo co ln bi NodeB.TCP_Load= NOHSDSCHPower+SpiTrong ,NOHSDSCHPower l cng sut sng mang c truyn i ca tt c cc code khng s dng knh HS-DSCH hoc HS-SCCH c bo co bi NodeB.HSDSCHRequiredPowerSqi l cng sut yu cu knh HS-DSCH lin quan n vic t mc u tin ca tng cell Phng php quyt nh DCH downlink admission control ca cell HSPA Nu UE khng c HS, cng thc quyt nh admission l ging vi R99. Ngng admission cng ging vi R99 Nu c HS-DSCH trong cell, cng thc quyt nh DCH admission l Nu HsdpaAcThresh > DchDlAcThreshNoHsdschPower + P MaxDlTxPwr* DchDlAcThresh v NoHsdschPower + P + max(Spi, minHsdpaTotalPower) MaxDlTxPwr*HsdpaActhresholdth UE mi s c chp nhn, mt khc, UE s b t chi. Nu HsdpaAcThresh < DchDlAcThreshNoHsdschPower + P MaxDlTxPwr* DchDlAcThresh vNoHsdschPower + P + max(Spi, minHsdpaTotalPower) MaxDlTxPwr*(NodeBsafeThr-SafePowerOffset)Th UE mi s c chp nhn, ngc li, UE s b t chi.Trong NodeBsafeThr l thng s Safe Threshold for NodeB to use HSDPA Power Freely trn OMC. SafePowerOffset l thng s NodeB safe Admission Threshold Offset when DCH admission Priority in HS cell is higher than Hs Priority trn OMC.P l lng cng sut knh DCH d on tng ln3.7. UE RLC Capability-based Admission ControlTrong qu trnh thit lp hoc cu hnh li RB, thng s UE RLC radio access capability khng th vt qu kh nng ca UE: Maximum number of AM entities: ging vi R99 Maximum RLC AM Window Size: ging vi R99

Total RLC AM v MAC-hs buffer size: ging vi R99Ch : Khi mt dch v DL c mang trn knh HS-DSCH, thng s RLC ca dch v lin quan n MaxBR chp nhn. Khi DCH v HS-DSCH DL ng thi c trong cell, tc ln nht ca mt dch v c th mang trn knh DPCH lin quan n kh nng ca UE v t c t thng tin v kh nng ca UE c bo co ln.3.8. F-DPCH admission ControlF-DPCH khng nh hng n qu trnh HSDPA admission control. Mt F-DPCH c th s dng cho mt vi user HSDPA, ch downlink channel code v CE admission control l cn F-DPCH.3.8.1. Downlink channel code admission control for F-DPCHTng t vi DCH downlink channel code admission control3.8.2. CE admission control for F-DPCHnh gi CE cho F-DPCH nh sau:(1) CE cho F-DPCH c nh gi bi UE, lng CE cho mi UE dng knh F-DPCH tng ng SF=256 trong IE AUDIT RESPONSE hoc RESOURCE STATUS INDICATION. Nu c nhiu hn 1 UE trn knh F-PDCH, lng tiu th CE l tng tiu th ca tt c UE.(2) Khi UE b release, lng tiu th CE bi UE ny s b releaseCc quy tc cho F-DPCH CE admission control tng t nh vi downlink CE admission control for DCH.3.9. Processing upon Admission Rejectioni vi cc dch v khc nhau v cc mc QoS khc nhau, cc dch v c yu cu s khng b t chi trc tip khi khng m bo ti nguyn; H thng cn thc hin ngt kt ni bt buc, thit lp hang i v cc chnh sch re-scheduling i vi dch v da trn cc yu cu v tr ca n v u tin tng tc kt ni. 4. HSUPA Admision Control4.1. Cc o c lin quan o nhiu UL thc hin E-DCH admission control trong mt cell h tr dch v HSUPA, NodeB cn thit nh k bo co thng tin o c lin quan n nhiu HSUPA: RSEPS (RTWP*)Chu k bo co cc o c thng thng ca RSEPS (RTWP*) c iu khin bi thng s RptPrdUnit(NbCom) v RptPrd(NbCom).NodeB c th mang thng tin ti nguyn E-DCH bao gm Resource Operation State v HSDPA Capability trong Audit Response message, nu trong thng tin v ti nguyn E-DCH thng tin Resource Operation State l Disable hoc E-DCH Capability l E-DCH non Capable, E-DCH admission control s t chi vi yu cu cp dch v mi vi nguyn nhn l NodeB Support Capability Limit (EDCH_NOT_AVAILABLE).4.2. Uplink Interference-based Admission Controli vi non GBR E-DCH traffic, phn tng nhiu Uplink khng cn thit phi tnh ton, nhng vic nh gi admission l cn thit. i vi DCH v GBR E-DCH traffic, c phn tng nhiu Uplink v nh gi admission l cn thit.4.2.1. Tnh ton ti hiu dngi vi vic tnh ton phn tng nhiu UL v nh gi admission da trn nhiu UL, ti hiu dng ng UL cn thit phi tnh ton v c th khng c iu khin bi NodeB.Uplink Effectice Load=UL Base Noise+load from UL DCH+load from non-scheduled E-DCH+load from GBR data rate of scheduled E-DCH.NodeB c th gi thng tin ti nguyn E-DCH bao gm Resource Operation State v HSDPA Capability trong Audit Response message, nu trong thng tin v ti nguyn E-DCH thng tin Resource Operation State l Disable hoc E-DCH Capability l E-DCH non Capable, E-DCH admission control s t chi vi yu cu cp dch v mi vi nguyn nhn l NodeB Support Capability Limit (EDCH_NOT_AVAILABLE).Nu a=10^((RSEPS )/10 ), Itotal=10^((RTWP* )/10 ) [mW], thUplink Effective load = Itotal (1-a) + load from GBR data rate of scheduled E-DCHTrong :Itotal(1-a) l base noise+load from UL DCH+load from non-scheduled E-DCH, thng tin ny ly t bn tin o c thng thng ca RTWP* v RSEPSload from GBR data rate of scheduled E-DCH c th c tnh theo cng thc:

4.2.2 Uplink Interference increment(I) calculation for new E-DCHi vi non GBR E-DCH traffic, phn tng nhiu Uplink khng cn thit phi tnh ton, nhng vic nh gi admission l cn thit. i vi DCH v GBR E-DCH traffic, c phn tng nhiu Uplink v nh gi admission l cn thit. Phn gia tng nhiu Uplink cho mt E-DCH mi c th tnh theo cng thc di y:I(dBm)=Itotal. Trong : Itotal s dng theo tnh ton ti hiu dng phn trn =1-No/Itotal No l cng sut nhiu nn UL v nhiu thit b thu, ly t OriBckNoise (nu BckNoiseAdjSwh c t ch OFF) hoc ly t kt qu o nn nhiu UL t ng (nu BckNoiseAdjSwh c t ch ON) Load estimate factor CL=(1+UlInterFactor). , W=3.84e6 (bit/s) l active factor (Alfa) UlInterFactor h s nhiu UL ca cell ln cn i vi cell hin ti (value l 0.5) = 10^((Eb/No)/10), EbNo l h s cht lng dch v E-DCH, gi tr ny i vi scheduled E-DCH l 1dB v gi tr i vi non scheduled E-DCH trong bng. R l tc data target m dch v c chp nhn.Ch : Nu c nhiu hn mt dch v truy nhp vo cell hoc bt k dch v no c xa b khi cell trong mt chu k bo co o c thng thng, phn gia tng nhiu UL s c tnh vo I4.2.3 nh gi kh nng truy cp theo nhiu Uplink Quyt nh truy cp vi scheduled E-DCH

Nu I+Uplink Effective load > EdchAcThresh, th dch v mi s b t chi khng cho truy cp vo cell vi nguyn nhn l Uplink Interference limited, ngc li, truy cp s c chp nhn. Quyt nh truy cp vi non schedule E-DCHNu I+load from UL DCH+load from non scheduled E-DCH > DchUlAcThresh hoc I+Uplink Effective load>EdchAcThresh, th dch v mi DCH hoc non scheduled E-DCH b t chi truy cp vo cell vi nguyn nhn Uplink Interference limited; ngc li dch v s c chp nhn. Quyt nh truy cp cc dch v ng thiKhi nhiu dch v ng thi c add vo 1 cell trong cng mt thi im (v d cc dch v ng thi handover vo cell ), th quyt nh truy cp theo nhiu Uplink s c a ra ln lt i vi tng dch v. Dch v ng thi s b t chi truy cp vo cell vi nguyn nhn Uplink Interference limited nu thi im dch v b hn ch.

4.2.4. CE resource-based Admission ControlCE resource-based admission control ca dch v HSUPA tng t vi dch v R99.Khng dch v no c chp nhn cho vo cell trong trng hp ti nguyn CE ca NodeB ht. Vic xem xt ti nguyn CE ca NodeB l da trn lng ti nguyn ca NodeB (Credit) v lng ti nguyn s dng (Cost). Phng php bo co Credit: Ti nguyn CE c chia s cho ng UL v DL CE Cost i vi cc knh c bn thng thng c qun l bi NodeB. Khi CE admission control c quyt nh bi RNC, lng s dng ti nguyn CE i vi cc knh c bn thng thng khng c xem xt, ch Dedicated Channel v MBMS Channel cn quyt nh CE cost admission. Lng s dng ti nguyn CE trong AUDIT RESPONE hoc RESOURCE STATUS INDICATION i vi knh thng thng ch c s dng cho MBMS. Tng lng s dng CE ch cho knh Dedicated v knh MBMS, lng s dng CE cho knh MBMS cng c b sung vo tng lng CE Dedicated s dng. i vi sng mang ging nhau c chia s bi multi-Plmn, lng ti nguyn CE s dng c b sung vo Common PLMN. Ch : knh c bn thng thng m NodeB qun l ti nguyn CE bo gm: PSCH, SSCH, CPICH, P-CCPCH, PICH, MICH, AICH, E-AGCH, E-RGCH, E-HICH ,SCCPCH mang PCH v FACH khng s dng cho MBMS (khng bao gm knh SCCPCH mang knh MBMS)i vi HSUPA CE admission control, ch cn xem xt n lng s dng ti nguyn ca knh E-DCH trn ng UL. Lng s dng c bo co bi NodeB.Cng thc a ra quyt nh khc nhau da trn vic liu ti nguyn CE UL v DL c c chia s hay khng: Ti nguyn CE UL v DL quyt nh c lpCng thc quyt nh ti nguyn UL E-DCH:ULTotalCost + ULCost2+ULCost1 UL Capacity Credit Ti nguyn CE c chia s trn ng UL v DLULTotalCost +DLTotalCost +ULCost2+ULCost1 DL Or Global Capacity CreditNu cng thc trn tha mn, quyt nh admission s c a ra.4.2.5. UE Numbers-based Admission ControlS lng UE qu nhiu trn knh E-DCH ch Cell-DCH c th khin tc ca tt c cc dch v gim xung v gim u th ca E-DCH vi tnh nng tc cao. Do , s lng dch v mang trn knh E-DCH trng thi Cell-DCH phi b gii hn. Nh cung cp mng c th t s lng UE cc i (EdchTrafLimit). Nu dch v mi vt qu gi tr EdchTrafLimit, th dch v ny s b t chi vi nguyn nhn E-DCH user Limit; ngc li, dch v s c chp nhn4.2.6. Downlink Channel Capacity-based Admission ControlLn nht 20 UE c th c ghp trn mt knh E-HICH/E-RGCH. Do , s lng UE s dng knh E-DCH cng b gii hn bi knh E-HICH/E-RGCH, l 20*s knh E-HICH/E-RGCH (NumofErgHich). Nu mt dch v mi c truy cp, s UE c th mng trn knh E-DCH trng thi CELL-DCH thi im hin ti vt qu (20* s knh E-HICH/E-RGCH) th UE mi ny s b t chi vi nguyn nhn E-DCH Downlink Capacity Limit; ngc li n s c chp nhn.4.2.7. UE RLC Capability-based Admission ControlTrong qu trnh thit lp hoc cu hnh li RB, vic cu hnh thng s lin quan kh nng truy cp v tuyn RLC ca UE khng c vt qu kh nng ca UE:1. Maximum number of AM entities Tng t vi R992. Maximum RLC AM Window Size Tng t vi R993. Total RLC AM v MAC-hs buffer size Tng t vi R99Nu c DCH v E-DCH c cu hnh theo ng UL, v mt dch v c set up ng thi trn DCH v E-DCH, tc ca DCH b gii hn gi tr ln nht l 64kbps.5. Processing upon Admission Rejectioni vi cc mc dch v khc nhau v QoS khc nhau, dch v c yu cu s khng b t chi ngay khi ti nguyn ca cell khng m bo, thay vo , h thng cn phi thc hin cc qu trnh bao gm: gii phng bt buc, queuing v re-scheduling policies i vi dch v da trn yu cu v tr v mc u tin tng tc kt ni.III. Khai bo hin tiTham sGi tr ang khai trn h thngGhi ch

BckNoiseAdjSwh1Tc ang ON

DchUlAcThresh60%

LoadScene0

BpriAcIndex1

BasicPrio0-15

MAXDLTXPWR43dBm

DchDlAcThresh90%

DlCacSwitch1Tc ang ON

CodeTreeResRto0%

RrcSigUsrNumThr200ch cho cc dch v CELL_DCH 3.4k, 13.6k, 27.2k signaling

AmrDnRateAcSwch1ON

HsdschTrafLimit64

HspdschBitRate700kbps

NUMOFHSPDSCH5

HsdpaAcThresh90

MinHspaPwrRto3%

NodeBsafeThr95%

SafePowerOffset10%

EdchAcThresh60%C BP gi tr ny l 61.5

EdchTrafLimit64

NUMOFERGHICH1

IV. xut Hin tham s NumofErgHich=1, tc l ch c maximum 20 user c th dung dch v HSUPA do ch c 1 knh E-HICH/E-RGCH, trong khi s lng user EdchTrafLimit=64. xut tng NumofErgHich=3