Downlink Parameters Details
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8/17/2019 Downlink Parameters Details
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Cell Parameters (Advanced LTE FDD Downlink) Additional Downlink parameters are described in Cell Specific Reference Signal (Advanced LTE FDDDownlink) !ositioning Reference Signals (!RS) " (Advanced LTE FDD Downlink) S#nc$roni%ationSignals (Advanced LTE FDD Downlink) and !ower Relevant !arameters (Advanced LTE FDD Downlink)&
1. Cell Parameters
Cell 'D
!$#sical La#er Cell 'D rop
!$#sical La#er Cell 'D Sector
*mber of +rt$ogonal Se,ence
Antenna !ort
Total nmber of Antennas
S#stem -andwidt$
Total nmber of Resorce -locks
Total nmber of +ccpied Sb"carriers
Sbcarrier Spacing
C#clic !refi.
*mber of Sbcarriers for Resorce -lock
*mber of S#mbols for Resorce -lock
Cell IDRange: 0 to 503Default: 1
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Enter a vale for t$e Cell 'D& T$e software sets t$e vales in t$e Physical Layer Cell ID
Group and Physical Layer Cell ID Sector cells based on t$e Cell ID entr#& Cell 'D / 0(1 .!$#sical Cell 'D rop) 2 !$#sical Cell 'D Sector3& See 1!! TS 14&566&
Physical Layer Cell ID ro!"Range: 0 to 167
Default: 0 T$e software sets t$is vale based on t$e Cell ID entr#& Cell 'D / 0(1 . !$#sical Cell 'D rop) 2!$#sical Cell 'D Sector3& (See 1!! TS 14&566&)
Physical Layer Cell ID #ector Choice: 0 | 1 | 2 Default: 0
T$e software sets t$is vale based on t$e Cell ID entr#& Cell 'D / 0(1 . !$#sical Cell 'D rop) 2!$#sical Cell 'D Sector3& (See 1!! TS 14&566&)
$!m%er o& 'rthoonal #e!enceRange: 0 to 2
7$en #o set t$e vale in t$e !$#sical La#er Cell 'D Sector cell t$e software sets t$e *mber of+rt$ogonal Se,ence to t$e corresponding vale& (See 1!! TS 14&566&)
Antenna PortChoice: 0 | 1 | 2 | 3Default: 0
'n mlti"antenna configrations specif# t$e antenna to be sed for transmitting t$e downlink signal& T$e
available selections are determined b# t$e Total Number of Antennas setting&
Total n!m%er o& AntennasChoice: 1 Antenna | 2 Antennas | 4 AntennasDefault: 1 Antenna
Specif# t$e total nmber of base station antennas&For mltiple signal generator configrations set t$e C$annel State parameter in t$e Fading section of t$e
Carrier node to On to make t$is cell active& 7$en t$e c$annel state is off #o mst c$ange t$e nmberof signal generators (for e.ample se a 8ick Setp) to c$ange t$e nmber of -S antennas&
#ystem *andwidthChoice: 1.4 MH !6R"# | 3 MH !15R"# | 5 MH !25R"# | 10 MH !50R"# | 15 MH !75R"# | 20 MH !100R"#Default: 5 MH !25R"#
Doble"click or se t$e drop"down men to set t$e s#stem bandwidt$ and nmber of Resorce -locks(R-)&
Total n!m%er o& +eso!rce *locks
T$e vale in t$is cell is set b# t$e software based on t$e System Bandidth setting&
Total n!m%er o& 'cc!"ied #!%,carriersT$e vale in t$is cell is set b# t$e software based on t$e System Bandidth setting& T$e centersbcarrier is not sed for downlink transmission so t$e nmber of transmitted sbcarriers is one less t$ant$e nmber of occpied sbcarriers&
#!%carrier #"acin
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Default: 15 $H Displa#s t$e sbcarrier spacing for t$e downlink& +nl# 69 k:% spacing is available in t$is release&
Cyclic Pre&i-Choice: %o&'al | ()ten*e* Default: %o&'al
Doble"click or se t$e drop"down men to select a Normal or !"tended c#clic prefi.& T$e softwaresets t$e Number of Symbols for #esource Bloc$ based on t$e c#clic prefi. selection&
$!m%er o& #!%carriers &or +eso!rce *lockDefault: 12
Displa#s t$e nmber of consective sbcarriers in a downlink resorce block&
$!m%er o& #ym%ols &or +eso!rce *lockDefault: 7 fo& Normal C+clic ,&efi)- 6 fo& Extended C+clic ,&efi)
Displa#s t$e nmber of consective +FD; s#mbols in a downlink slot&
Cell Specific Reference Signal (Advanced LTE FDD Downlink)+ne cell specific reference signal is transmitted from eac$ downlink antenna port&
T$e downlink cell specific reference signal can be sed for t$e following prposes<
• Cell searc$ and initial ac,isition
• Downlink c$annel ,alit# measrements
• Downlink c$annel estimation for co$erent demodlation=detection at t$e >E
Additional Downlink parameters are described in Cell !arameters (Advanced LTE FDD
Downlink) !ositioning Reference Signals (!RS) " (Advanced LTE FDD Downlink) S#nc$roni%ation
Signals (Advanced LTE FDD Downlink) and!ower Relevant !arameters (Advanced LTE FDD Downlink)&
Cell specific Reference Signal !ower
Range: 60 to 20 *"
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Default: 0.000 *"
Enter a power level in d- for t$e cell specific reference signal&
Positionin +e&erence #inals (P+#) , (Advanced LTE FDDDownlink)
!RS +verview
Additional Downlink parameters are described in Cell !arameters (Advanced LTE FDD Downlink) CellSpecific Reference Signal (Advanced LTE FDD Downlink) S#nc$roni%ation Signals (Advanced LTE FDDDownlink) and !ower Relevant !arameters (Advanced LTE FDD Downlink)&
. Positionin +e&erence #inals (P+#)
State
!ower
Antenna ;apping for !ort 4
*mber of !DCC: S#mbols
!RS -andwidt$*mber of Consective DL Frames (*?!RS)
!RS Configration 'nde. ('?!RS)
!RS !eriodicit# (T?!RS)
!RS Sbframe +ffset (Delta?!RS)
!RS ;ting Se,ence Lengt$
!RS ;ting Se,ence
#tateChoice: /ff | /nDefault: /ff
Doble"click or se t$e drop"down men to enable or disable t$e c$annel& See 1!! TS 14&566&
Power Range: 60.000 to 20.000 *"Default: 0.000 *"
Enter a power level in d- for t$e selected c$annel& See +tpt !ower Calclation (Downlink) for adescription of $ow t$e software applies to #or power setting& See 1!! TS 14&566&
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Antenna /a""in &or Port 0Range: 0 o& 1 as co''a sea&ate* alues !C# eual to the nu'e& of antennas selecte*.Default: 1
Enter @ or 6 separated b# commas to assign t$e !ositioning Reference Signals (!RS) to t$e p$#sicalantennas& T$e comma separate lengt$ is p to t$e Total *mber of Antennas& @ and 6 mean +ff and +nrespectivel#& Comma separate se,ence order means p$#sical antenna port nmber&
E.ample< Total *mber of Antennas / Antennas and Antenna ;apping / 06 6 6 63 case !RS isassigned to all antennas (port @ to 1)& See 1!! TS 14&566&
$!m%er o& PDCC #ym%olsRange: 1 to 3 !%D8R" 9 10# 2 o& 3 !%D8R" ; 10#Default: 2
Enter t$e nmber of !DCC: s#mbols for all of t$e positioning reference signal (!RS) sbframes&T$is parameter defines t$e nmber of !DCC: +FD; s#mbols for all of t$e !RS sbframes& T$e !RS areassigned b# t$e *mber of Consective DL Frames (*?!RS) !RS Configration 'nde. ('?!RS) !RS!eriodicit# (T?!RS) and !RS Sbframe +ffset (Delta?!RS)&'f t$e !RS State / on and a !RS sbframe is assigned corresponding sbframe of !DCC: Allocationsparameters in DC' are c$anged b# t$e *mber of !DCC: S#mbols&
• 7$ere< *?DL?R- B/ 6@ t$e *mber of !DCC: S#mbols allowed is 5 or 1&
• 7$ere< *?DL?R- 6@ t$e *mber of !DCC: S#mbols allowed is 6 to 1&
Refer 1!! TS 14&566 and 14&116&
P+# *andwidthChoice: 1.4 MH !6R"# | 3 MH !15R"# | 5 MH !25R"# | 10 MH !50R"# | 15 MH !75R"# |20 MH !100R"#Default: 5 MH !25R"#
Specifies t$e bandwidt$ (resorce block si%e) t$at is sed to configre t$e positioning reference signals(!RS)&T$e available !RS -andwidt$ setting vale is determined b# t$e S#stem -andwidt$& 'f t$e S#stem-andwidt$ was set to less t$an t$e !RS -andwidt$ t$e !RS -andwidt$ is atomaticall# set t$e same ast$e S#stem -andwidt$&Refer 1!! TS 14&566 and 14&199&
$!m%er o& Consec!tive DL Frames ($2P+#)Choice: 1 suf&a'e | 2 suf&a'es | 4 suf&a'es | 6 suf&a'esDefault: 1 suf&a'e
Specifies t$e nmber of consective downlink sbframes *?!RS wit$ positioning reference signals(!RS)&T$is is a time accmlation for accrac# improvement to configre t$e consective !RS&Refer 1!! TS 14&566&
P+# Con&i!ration Inde- (I2P+#)Range: 0 to 23<<Default: 0
Enter t$e !RS Configration 'nde. for t$e positioning reference signals (!RS)&T$is atomaticall# defines bot$ t$e !RS !eriodicit# and t$e !RS Sbframe +ffset&T$e first Sbframe of t$e *?!RS downlink sbframes s$all satisf# (6@ SF* 2 Floor(Slot = 5) "Delta?!RS) mod T?!RS / @&7$ere< 7ave eneration Lengt$ B (!RS Sbframe +ffset 2 *mber of Consective DL Frames) a partof or all of !RSs are not available for t$e crrent waveform&Refer 1!! TS 14&566&
P+# Periodicity (T2P+#)
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Choice: 160 !suf&a'es# | 320 !suf&a'es# | 640 !suf&a'es# | 12=0 !suf&a'es#Default: 160 !suf&a'es#
T$is is a read"onl# parameter atomaticall# decided b# !RS Configration ('?!RS) as follows<T$e first sbframe of *?!RS downlink sbframes s$all satisf# (6@ SF* 2 Floor(Slot = 5) " Delta?!RS)mod T?!RS / @&
• '?!RS / @ to 69 case T?!RS / 64@ (sbframes)&
•
'?!RS / 64@ to G case T?!RS / 15@ (sbframes)&• '?!RS / H@ to 666 case T?!RS / 4@ (sbframes)&
• '?!RS / 665@ to 51 case T?!RS / 65H@ (sbframes)&
7$ere< 7ave eneration Lengt$ B (!RS Sbframe +ffset 2 *mber of Consective DL Frames) a partof or all of !RSs are not available for t$e crrent waveform&Refer 1!! TS 14&566&
P+# #!%&rame '&&set (Delta2P+#)Range: 0 to 12=0 !suf&a'es#Default: 0 !suf&a'e#
T$is is a read onl# parameter atomaticall# decided b# t$e !RS Configration ('?!RS) as follows<T$e first sbframe of t$e *?!RS downlink sbframes s$all satisf# (6@ SF* 2 Floor(Slot = 5) "Delta?!RS) mod T?!RS / @&
• '?!RS / @ to 69 case Delta?!RS / '?!RS
• '?!RS / 64@ to G case Delta?!RS / '?!RS " 64@
• '?!RS / H@ to 666 case Delta?!RS / '?!RS " H@
• '?!RS / 665@ to 51 case Delta?!RS / '?!RS " 665@
7$ere< 7ave eneration Lengt$ B (!RS Sbframe +ffset 2 *mber of Consective DL Frames) a partof or all of !RSs are not available for t$e crrent waveform&For more detail refer 1!! TS 14&566&
P+# /!tin #e!ence LenthChoice: 2 | 4 | = | 16 Default: 2
Specifies t$e bit lengt$ of !RS ;ting Se,ence parameter&
P+# /!tin #e!enceRange: 0 o& 1 >ith co''a sea&ate inut 8ength: ,R Muting euence 8engthDefault: 11
Specifies !RS ;ting Se,ence& T$e vale I@I means mting and I6I means not mting in t$e se,ence&T$e se,ence lengt$ is defined b# !RS ;ting Se,ence Lengt$ parameter&'f a bit in t$e !RS mting se,ence is set to I@I t$e !RS is mted in t$e corresponding !RS positioningoccasion& A !RS positioning occasion comprises of *?!RS downlink positioning sbframes& T$e first bitof t$e !RS mting se,ence corresponds to t$e first !RS positioning occasion&Refer 1!! TS 14&199&
S#nc$roni%ation Signals (Advanced LTE FDD Downlink)
Two t#pes of s#nc$roni%ation signals are sed for t$e downlink in LTE<
• !rimar# s#nc$roni%ation signal (!"SS)
T$e primar# s#nc$roni%ation signal is sed to s#nc$roni%e timing dring cell searc$&
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• Secondar# s#nc$roni%ation signal (S"SS)
T$e secondar# s#nc$roni%ation signal is sed to s#nc$roni%e timing and to transmit cell grop
identification dring cell searc$
Additional Downlink parameters are described in Cell !arameters (Advanced LTE FDD Downlink) Cell
Specific Reference Signal (Advanced LTE FDD Downlink) !ositioning Reference Signals (!RS) "
(Advanced LTE FDD Downlink) and !ower Relevant !arameters (Advanced LTE FDD Downlink)&
!rimar# S#nc$ Signal State
Choice: /ff | /n
Default: /n
T$e software sets t$e state of t$e primar# s#nc$roni%ation signal (!"SS) to On& Jo can control t$e !"SS
power as described below&
!rimar# S#nc$ Signal !ower
Range: 60 to 20 *"
Default: 0.000 *"
Enter t$e power level in d- for t$e primar# s#nc$roni%ation signal relative to t$e reference signal perresorce element (i&e& w$en t$e reference signal power is set to @ d-)&
Secondar# S#nc$ Signal State
Choice: /ff | /n
Default: /n
T$e software sets t$e state of t$e secondar# s#nc$roni%ation signal (S"SS) to On& Jo can control t$e S"
SS power as described below&
Secondar# S#nc$ Signal !ower
Range: 60 to 20 *"
Default: 0.000 *"
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Enter t$e power level in d- for t$e secondar# s#nc$roni%ation signal relative to t$e average sbcarrier
power&
!"SS=S"SS Transmit Antenna !ort
Choice: ,o&t 0 | ,o&t 1 | ,o&t 2 | ,o&t 3 | All ,o&t
Default: ,o&t 0
Doble"click or se t$e drop"down men to select t$e !"SS=S"SS transmit antenna port&
T$is parameter specifies t$e antenna port(s) t$at !"SS and S"SS are transmitted on& !"SS and S"SS can
be transmitted on a single antenna (!ort@=6=5=1) or all t$e antenna ports&