ERAN GSM LTE Dynamic Power Sharing

eRAN Feature Documentation Product Version: eRAN7.0 Library Version: 07 Date: 12/30/201 For any question, please contact us. Copyright Huawei Technologies Co., Ltd. 2014. ll rights reser!ed.!"# and L$% Dynamic Po&er "'arin()ontents".#.$ %&' and LT( )yna*ic +ower &haring"in(*eRAN!"# and L$% Dynamic Po&er "'arin( Feature Parameter Descri+tion,ssue 02Date 201-12-20./A0%, $%).N1L1!,%" )1.2 L$D.)o+yri('t 3 .ua&ei $ec'no*o(ies )o.2 Ltd. 201. A** ri('ts reser4ed.,o part o- this docu*ent *ay .e reproduced or trans*itted in any -or* or .y any *eans without prior written consent o- Huawei Technologies Co., Ltd.$rademar5s and Permissions and other Huawei trade*ar/s are trade*ar/s o- Huawei Technologies Co., Ltd.ll other trade*ar/s and trade na*es *entioned in this docu*ent are the property o- their respecti!e holders.NoticePage 1 of 16 HEEX Startpage8/6/2015 http://localhost:7890/printtopics.htl!tie"#h$ %$g 6 17:19:&' (#)*0700 20153.9.5 Contents1 About This Document1.1 Scope1.2 Intended Audience1.3 Change History1.4 Differences Between Base Station Types2 Overview2.1 Introduction2.2 Benefits3 Technical Description3.1 Introduction3.2 Baanced !ower Aocation3.3 !ower Sharing"#eca$ation Criteria3.4 !ower Sharing3.% !ower #eca$ation4 Relate !eatures4.1 !rere&uisite 'eatures4.2 (utuay )*cusi+e 'eatures4.2.1 ,n the -S( Side4.2.2 ,n the .T) Side4.3 I$pacted 'eatures4.3.1 ,n the -S( Side4.3.2 ,n the .T) Side5 "etwor# $mpact%.1 Syste$ Capacity%.2 /etwor0 !erfor$ance% &n'ineerin' (uielines1.1 2hen to 3se -S( and .T) Dyna$ic !ower Sharing1.2 #e&uired Infor$ation1.3 !anning1.4 Depoy$ent1.4.1 #e&uire$ents1.4.2 Data !reparation1.4.3 !recautions1.4.4 Hardware Ad4ust$ent1.4.% Acti+ation1.4.1 Acti+ation ,5ser+ation1.4.6 #econfiguration1.4.7 Deacti+ation1.% !erfor$ance (onitoring1.1 !ara$eter ,pti$i8ation1.6 Trou5eshooting) *arameters+ Counters9 (lossar,1- Re.erence DocumentsThe purchased products9 ser+ices and features are stipuated 5y the contract $ade 5etween Huawei and the custo$er. A or part of the products9 ser+ices and features descri5ed in this docu$ent $ay not 5e within the purchase scope or the usage scope. 3ness otherwise specified in the contract9 a state$ents9 infor$ation9 and reco$$endations in this docu$ent are pro+ided :AS IS: without warranties9 guarantees or representations of any 0ind9 either e*press or i$pied. The infor$ation in this docu$ent is su54ect to change without notice. )+ery effort has 5een $ade in the preparation of this docu$ent to ensure accuracy of the contents9 5ut a state$ents9 infor$ation9 and reco$$endations in this docu$ent do not constitute a warranty of any 0ind9 e*press or i$pied. Huawei Technoogies Co.9 .td.Address; Huawei Industria Base Bantian9 .onggang Shen8hen %1712< !eope=s #epu5ic of China2e5site; http;""www.huawei.co$)$ai; support>huawei.co$Page 2 of 16 HEEX Startpage8/6/2015 http://localhost:7890/printtopics.htl!tie"#h$ %$g 6 17:19:&' (#)*0700 20151 About This Document ScopeThis document describes the GSM and LTE Dynamic Power Sharing feature, including implementation principles, parameter adjustments, feature dependencies, networ impact, and engineering guidelines!This feature consists of the following features" M#$D%&''()* GSM and LTE Dynamic Power Sharing +GSM, M#$D%&-'()* GSM and LTE Dynamic Power Sharing +LTE, NOTE: .n this document, the GL dual%mode base station is called G/TS or eG/TS on the GSM side and called e0ode/ on the LTE side!The G/TS and eG/TS use different MML commands and may use different parameter names and .Ds for GSM and LTE Dynamic Power Sharing! Intended AudienceThis document is intended for personnel who" 0eed to understand the features described herein 1or with 2uawei products Change HistoryThis section pro3ides information about the changes in different document 3ersions! There are two types of changes, which are defined as follows" $eature change 4hanges in features of a specific product 3ersion Editorial change 4hanges in wording or addition of information that was not described in the earlier 3ersionRAN9! !" #"!$%&$"&"!'This issue includes the following changes!SRAN9! !$ #"!$%&!%&(!'This issue does not include any changes!SRAN9! Dra)t A #"!$%&!$&"!'4ompared with .ssue )' +&)'-%)5%&(, of S#60(!), Draft 6 +&)'5%)'%&), of S#607!) includes the following changes! Di))erences *et+een *ase Station TypesThe features described in this document apply only to macro base stations!2 O,er,ie+ Introduction.n a GSM8LTE +GL, dual%mode base station, if the GSM cell load is low, the GSM cell can share idle power resources with the LTE cell! 1hen the GSM cell load increases to a certain le3el, the GSM cell can reclaim the shared power resources!The GL dual%mode base station must meet the following re9uirements" .t pro3ides ser3ices for the same operator! The GSM and LTE modes in the base station share radio fre9uency +#$, modules! *ene)its.f the GSM cell load is low, GSM and LTE Dynamic Power Sharing pro3ides the following benefits" The GSM cell shares idle power resources with the LTE cell, thereby impro3ing power resource usage in the base station! The LTE cell allocates the shared power resources to :Es using coding schemes lower than M4S%7 for data ser3ices in the downlin, thereby increasing the throughput of these :Es! +M4S is short for modulation and coding scheme!,Change Type Change Description Parameter Change$eature change 0one 0oneEditorial change ;ptimiP0s becase the GSM cell reser1es some power before sharing idle power with the !T" cell% Sys#em +apaci#y;o impact% 5e#wor6 Performance5n the !T" side) GSM and !T" Dynamic Power Sharing< 0mpro1es the throghpt of U"s sing coding schemes lower than M7S+9 becase the !T" cell allocates the accepted power to them% Decreases the a1erage throghpt of the !T" cell becase the U"s sing coding schemes lower than M7S+9 may case slight interference to U"s in the neighboring cell%5n the GSM side) GSM and !T" Dynamic Power Sharing< 0ncreases the probability of GSM power clippings becase power reclamation ta'es some time in case of GSM traffic brsts% Has no impact on the GSM cell=s >P0s becase the GSM cell reser1es some power before sharing idle power with the !T" cell%Page 8 of 16 HEEX Startpage8/6/2015 http://localhost:7890/printtopics.htl!tie"#h$ %$g 6 17:19:&' (#)*0700 20156 Engineering Guidelines When to Use GSM and LTE Dynamic Power SharingUse GSM and LTE Dynamic Power Sharing in the following scenarios: When peak hors of the GSM and LTE networks occr dring different periods of a day or when network traffic is ne!enly distri"ted# $n rral areas or in r"an areas where most sers are indoor sers# Required Inormation%ollect performance conters listed in Ta"le &'( to learn a"ot the traffic load in the GSM cell#Ta!le "#$ Performance conters related to GSM cell traffic load)o can o"tain the traffic !olme for each channel of the GSM cell o!er the past *+ hors with the following formla: Traffic !olme on each channel , Traffic !olme on T%-s./m"er of T%-s#$n addition0 o"tain the nm"er of GSM non'1%%- carriers for "oth transmit channels# $f the nm"ers of GSM non'1%%- carriers on the two transmit channels are different0 the smaller nm"er is sed#Ta!le "#% GSM and LTE Dynamic Power Sharing sage recommendations PlanningR& Planning/.2'etwor( Planning/.2 De)loyment"*+*$ RequirementsThe re3irements for deploying GSM and LTE Dynamic Power Sharing are as follows: The GL dal'mode "ase station pro!ides ser!ices for the same operator# The GSM and LTE modes in the "ase station share 45 modles# The 45 modles shold "e M45Us or M44Us# The antennas of the LTE cell work in *T*4 mode# The two transmit channels of the LTE cell can "e pro!ided "y a single *T M44U.M45U or two "ond (T M44U.M45Us# 6*T*4: two transmit channels and two recei!e channels7 ',TE- The two transmit channels of the LTE cell cannot "e pro!ided "y two "ond *T M44Us or M45Us# The LTE cell and GSM cell share two P2s and at least one GSM non'1%%- carrier is on two P2s# Licenses descri"ed in the following ta"le ha!e "een prchased and acti!ated on "oth the G1TS.eG1TS and e/ode1 sides# Ta!le "#. License information for GSM and LTE Dynamic Power Sharing ',TE- 5or a G1TS0 the license mst "e acti!ated on the 1S% side# 5or an eG1TS0 the license mst "e acti!ated on the eG1TS side#Counter ID Counter Name Counter Description(*89:98+;9 %ELL#D;P9(S:>(E(S@>C%3(;P9(S:>(E#SM4D5E%:;P9(S:>(E#SM4D5E:S;P9(S:>(E#SM4D5E(S@P9(;P9(S:>(E#SM$)S(E(C@P9(;P9(S:>(E(C@P9(PD;P9(S:>(E%MMO Sheet in the Summary Data File Parameter Group RemarksCelllgoSwitch )ser-defined sheet 5ocal cell id; #5P9( Share S!itch -Page 12 of 16 HEEX Startpage8/6/2015 http://localhost:7890/printtopics.htl!tie"#h$ %$g 6 17:19:&' (#)*0700 20156.4.6 Activation ObservationOn the U2000, observe the values of the performance counters listed in Table 6-9 and Table 6-10. If the values of these performance counters are not ero, !"# and $T% &o'er "harin( has been successfull) enabled on the !"# side.Table 6-9 !*T" performance counters related to !"# and $T% +)namic &o'er "harin(Table 6-10 e!*T" performance counters related to !"# and $T% +)namic &o'er "harin( NOTE: The $T% cell accepts the po'er shared b) the !"# cell onl) 'hen one or more of U%s served b) the $T% cell use #,"-9 or hi(her codin( schemes.6.4.7 Reconfiguration-one6.4. !eactivation"sing ##$ %o&&an'sTo deactivate !"# and $T% +)namic &o'er "harin( on the !*T" side, run the *", ##$ command (ET )T(R*")+ 'ith GUPWRSHARESWITCH set to NO. "et the parameter GXPwrShareRltMoSw to O,, 'hen t'o 1T #./Us are confi(ured.To deactivate !"# and $T% +)namic &o'er "harin( on the e!*T" side, run the e!*T" ##$ command #O! -)T(+.R(/R-R+.To deactivate !"# and $T% +)namic &o'er "harin( on the e-ode* side, run the e-ode* ##$ command #O! %E$$A$-O(.0T%/ 'ith GLPwrShare set to O,,.##$ %o&&an' E1a&2les00+eactivatin( !"# and $T% +)namic &o'er "harin( on the !*T" sideSET BTSRXUBP: IDTYPE=BYID, BTSID=0, RXUIDTYPE=RXUNAME, RXUNAME="mrru1", RXUTYPE=MRRU, GUPWRSHARESWITCH=N%' SET BTSRXUBP: IDTYPE=BYID, BTSID=()*, RXUIDTYPE=SRNSN, CN=0, SRN=(, SN=0, RXUTYPE=MR&U, GUPWRSHARESWITCH=N%, GXPwrShr!R"#M$Sw=%&&'00+eactivatin( !"# and $T% +)namic &o'er "harin( on the e!*T" sideM%D GBTSPWRSHRGRP: PWRSHRGRPID=0, PWRSHRTYPE=%&&'00+eactivatin( !"# and $T% +)namic &o'er "harin( on the e-ode* sideM%D CELLALG%SWITCH: L$3"C!""I4=0, GLPwrShr!=%&&' "sing t3e %#E to +erfor& )atc3 %onfigurationThe !*T" does not support batch confi(uration usin( a summar) data file that contains data for activatin( this feature and other data for the base stations to be deplo)ed.*atch reconfi(uration usin( the ,#% is the recommended method to deactivate a feature on base stations. This method reconfi(ures all data, e1cept nei(hbor relationships, for multiple base stations in a sin(le procedure. The procedure for feature deactivation is similar to that for feature activation described in 2Usin( the ,#% to &erform *atch ,onfi(uration for %1istin( *ase "tations2 of section 6.3.4 5ctivation. In the procedure, chan(e the parameter settin(s accordin( to Table 6-11 and Table 6-12.Table 6-11 e!*T" #Os related to !"# and $T% +)namic &o'er "harin(Table 6-14 e-ode* #Os related to !"# and $T% +)namic &o'er "harin("sing t3e %#E to +erfor& (ingle %onfigurationOn the ,#%, set parameters listed in Table 6-11 and Table 6-12 accordin(l). /or instructions on ho' to perform the ,#% sin(le confi(uration, see CME Single Configuration Operation Guide. /or a !*T", set -* !5na&ic +o6er (3aring (6itc3 to O,,7O,,8 and set Associate' #o'ule (6itc3 for -* +o6er (3aring to O,,7O,,8 'hen t'o 1T #./Us are confi(ured. /or an e!*T", set +o6er (3aring T52e to O,,7Off8. /or an e-ode*, set -$ 2o6er s3are s6itc3 to O,,7Off8. +erfor&ance #onitoringTable 6-9, Table 6-10, Table 6-16, and Table 6-13 list the performance counters to monitor for evaluatin( the performance of !"# and $T% +)namic &o'er "harin(.Table 6-19 &erformance counters related to the traffic volume, handover success rate and clippin( on the !"# sideCounter ID Counter Name Counter Description1272366998 T.9.!9&:.";5.%.";5.%.TI#% !U10105nlink S&0 in QPSK modulation modeQPSK UEs use 3&SA$ to 3&SA?' ThereforeB the difference :et>een these counters on QPSK UEs :efore and after the feature acti1ation can indicate >hether the throughput of the QPSK UEs ser1ed :y the LTE cell increases'6!@"!"-6" L'Traffic')L'S&0'QPSK'T7':its Si9e of T7s initially transmitted o1er the do>nlink S&0 in QPSK modulation mode6!@"!"-@$ L'Traffic')L'S&0'QPSK'T7'*etrans 5um:er of T7s retransmitted o1er the do>nlink S&0 in QPSK modulation mode6!@"!"-@- L'Traffic')L'S&0'QPSK'T7'*etrans':its Si9e of T7s retransmitted o1er the do>nlink S&0 in QPSK modulation mode6!@"!#!@ L'Thrp':its')L Total do>nlink traffic 1olume for P)&P S)Us in a cellThe difference :et>een these counters :efore and after the feature acti1ation can indicate >hether the a1erage throughput of the LTE cell increases'6!@"!#!@! L'Thrp'Time')L Total transmit duration of do>nlink P)&P S)Us in a cellPage 1& of 16 HEEX Startpage8/6/2015 http://localhost:7890/printtopics.htl!tie"#h$ %$g 6 17:19:&' (#)*0700 2015Determine whether the gains in the throughput of LTE QPSK UEs are small based on the values of performance counters listed in Table 6!"# $f the gains are small% change the values of the related parameters in the following order&!# $ncrease the value of the GUPWRSHAREURCVPWR parameter '()TS* or the PWRSHARERCVPWR parameter 'e()TS*% but ensure that the value after the increase is not greater than +,- of the power of a single P. configured for the LTE cell# /# Decrease the value of the GUPWRSHAREGSMIDLETH parameter '()TS* or the PWRSHAREGSMIDLETH parameter 'e()TS*% but ensure that the value after the decrease is not less than 6# 0# Decrease the value of the GUPWRSHAREGSM!USYRSVPWR parameter '()TS* or the PWRSHAREGSM!USYRSVPWR parameter 'e()TS*% but ensure that the value after the decrease is not less than +,- of the transmit power of each (S1 carrier# NOTE: .n increase in the value of the GUPWRSHAREURCVPWR parameter '()TS* or the PWRSHARERCVPWRPD parameter 'e()TS* ma2 decrease the LTE cell3s average throughput# . decrease in the GUPWRSHAREGSMIDLETH"GUPWRSHAREGSM!USYRSVPWR parameter '()TS* or the PWRSHAREGSMIDLETH"PWRSHAREGSM!USYRSVPWRparameter 'e()TS* ma2 result in fre4uent power sharing and reclamation#Considerable Increase in the LTE QPSK UEs' Throughput but Signiicant !ecrease in the LTE Cell's "#erage Throughput)ased on the values of performance counters listed in Table 6!"% determine whether the LTE QPSK UEs3 throughput considerabl2 increases but the LTE cell3s average throughput significantl2 decreases# $f 2es% change the values of the related parameters in the following order&!# Decrease the value of the GUPWRSHAREURCVPWR parameter '()TS* or thePWRSHARERCVPWR parameter 'e()TS*% but ensure that the value after the increase is not less than !/#+- of the power of a single P. configured for the LTE cell# /# $ncrease the value of the GUPWRSHAREGSMIDLETH parameter '()TS* or the PWRSHAREGSMIDLETH parameter 'e()TS*# 5ote that one T678 is e4ual to two T677s#0# $ncrease the value of the GUPWRSHAREGSM!USYRSVPWR parameter '()TS* or the PWRSHAREGSM!USYRSVPWR parameter 'e()TS*% but ensure that the value after the increase is not greater than the transmit power of each (S1 carrier#$ore %S$ Cell Po&er Clippings' (igher Call !rop )ate' and Lo&er (ando#er Success )ate)ased on the values of performance counters listed in Table 6!0% determine whether there are more (S1 cell power clippings% higher call drop rate% or lower handover success rate# $f 2es% change the values of the related parameters in the following order&!# Decrease the value of the GUPWRSHAREURCVPWR parameter '()TS* or the PWRSHARERCVPWRPD parameter 'e()TS*% but ensure that the value after the decrease is not less than !/#+- of the power of a single P. configured for the LTE cell# /# $ncrease the value of the GUPWRSHAREGSMIDLETH parameter '()TS* or the PWRSHAREGSMIDLETH parameter 'e()TS*# 5ote that one T678 is e4ual to two T677s#0# $ncrease the value of the GUPWRSHAREGSM!USYRSVPWR parameter '()TS* or the PWRSHAREGSM!USYRSVPWR parameter 'e()TS*% but ensure that the value after the increase is not greater than the transmit power of each (S1 carrier#*re+uent Po&er Sharing and )ecla,ation !uring %S$ Pea- (oursDetermine whether power sharing and reclamation occur fre4uentl2 during (S1 pea9 hours based on the values of performance counters listed in Table 6: and Table 6!,# $f 2es% increase the value of the GUPWRSHAREGSM!USYRSVPWR parameter '()TS* or the PWRSHAREGSM!USYRSVPWR parameter 'e()TS*% but ensure that the value after the increase is not greater than the transmit power of each (S1 carrier& Troubleshooting*ault !escriptionThe values of performance counters monitored during activation observation are ;ero#Possible CausesThe configuration of (S1 and LTE D2namic Power Sharing has not ta9en effect#*ault (andling!# 6hec9 whether the (S1 and LTE modes in the base station share