Ran1645-Hsupa 16qam Trial Report Rso Ro 00038

7/23/2019 Ran1645-Hsupa 16qam Trial Report Rso Ro 00038

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For internal use

©2013 Nokia Solutions and Networks. All rights reserved.

RAN1645 HSUPA 16QAMFeature trial

RAN11645 HSUPA 16QAM/ India-RSO-Radio / 2014-04-03 / RSO_RO_00038



Introduction

HSUPA 16QAM Feature trial

HSUPA 16QAM feature enables 11.5 Mbit/s peak UL data rate by sending four bits persymbol instead of two.

Motivation & benefits Using higher order modulation, more symbols can be transmitted, therefore more

bits can be assigned to each symbol, while the duration of symbol is kept. Thisresults in higher Bit Rate.

Most beneficial with low intra-cell interferences. That practically means that 16

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QAM is applied in scenario with single user per cell and relatively small distance toBTS antenna Advanced receiver technology (FDE) provides major benefit to uplink with 16 QAM Interference cancellation techniques are welcome to lower the intra-cell noise.

Drawbacks

Reduction of the Euclidean distance between adjacent symbols. This results instricter requirement in SNR per symbol to achieve the same BER

RoT(Rise over Thermal) limit requirement rises high, as the own signal interferencesfrom 16QAM are high. Therefore this feature is more useful for micro, pico cells.




Release & License Aspects


BSW/ASW ASW

RAS SWComponent RAN

Long-term

WCDMA Release

RU40 (FSM Rel.2)

RU50EP1 (FSMF andFlexi Lite)

RNC Release RN 7.0 1.0

License AspectsRelease Aspects

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For internal use


License Control

with configurablenumber of cells

Licence Control inNetwork Element

RNC LK

mcRNC Release mcRNC 3.0

BTS (Flexi)

WBTS 8.0 (FSM Rel.2

WBTS 9.1 (FSMF)

WL 9.1 (Flexi Lite)

BTS HW Flexi Rel.2, Rel.3, Lite

3GPP UE Category UE Cat. 7, 9




Mandatory Features: RAN1702 Frequency Domain Equalizer

RAN981 HSUPA 5.8Mbps RAN1226 HSPA Peak Rate Upgrade for RNC196 and RNC450 RAN1470 HSUPA 2 ms TTI

Optional Features: RAN1308 HSUPA Parallel Interference Cancellation Receiver

Feature dependancies


RAN1910Flexible RLC in UL

RAN1308Parallel InterferenceCancellation Receiver

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RAN1910 Flexible RLC in UL RAN1231 HSPA over IurRAN 1645HSUPA 16QAM

RAN1702Frequency DomainEqualizer

RAN981HSUPA 5.8Mbps

RAN1226HSPA Peak RateUpgrade forRNC196 andRNC450

RAN1470HSUPA 2 ms TTI

RAN1231HSPA over Iur




• This feature belongs to application software and is under license key management.Make sure you have a valid license installed.

• To set the feature state to ON, use the following command: “ZW7M: FEA=1497:ON;”

(IPA-RNC)• RAN1645: HSUPA 16 QAM feature needs the following features to be activated before it

can be enabled:- RAN981: HSUPA 5.8 Mbps- RAN1470: HSUPA 2ms TTI

Activation Process


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• ,

activated and during Commissioning the BTS, the frequency-domain equalization wasenabled

• Change the following parameters:MO Abbreviated name Parameter Discription Recommended

WCEL HSUPA16QAMAllowed HSUPA 16QAM usage allowed in a cell 1

WCEL HSUPAUserLimit16QAM HSUPA user limit for 16QAM usage 2

RNHSPA MaxReWaitTime2msTTI16Maximum reordering wait time parameter for MAC-es E-DCH2ms TTI 16QAM

120 sec

WCEL PrxMaxOrigTargetBTS Setting the following parameters to the given values will resultin the maximum throughput

18db

WCEL PrxMaxTargetBTS 18db

WCEL MaxTotalUplinkSymbolRate Maximum total uplink symbol rate 5760 kbps




• Trial is planned in RSRT03 RNC of Surat city. This RNC is running on RU40 softwareRN7.0 1.0

• 10 sites are selected with consideration that EDCH_category_7 UE penetration is higher

and BTS are up graded to RU40 (FSMD hardware).• Feature is activated on 4th April-2014.Vary less 16QAM PDUs are observed after feature

activation.• PrxMaxOrigTargetBTS & PrxMaxTargetBTS from8 dB to 12 dBto increase 16QAM activity

on 8th-April 2014..

Trial Brief


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For internal use


Trial Sites

WBTS Name WBTS id

SRTpalgmbclW 1448

SRTgujgasW 1614

SRTjainwadiW 18!

SRTna"ip#liW 181

SRTgujgsr$dW !1%1

SRTrajresiW !1%4

SRTplgmpumpW !!&6

SRTs#i"cmp'W !(8%

SRTsnd#)dsnW !!1%

SRTpal*abraW 4&&




• There are few 16QAM PDUs are observed after HSUPA 16QAM featureimplementation.

• 16QAM PDUs are increased after PrxMaxOrigTargetBTS & PrxMaxTargetBTS

parameter tuning.• Out of 32 cells, 16-QAM PDUs are observed in 13 cells from 15days logs.

16QAM activity


HSUPA 16QAM PDUs

16QAM Enabled Parameter Tunin

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0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

1 6 Q A M

P D U s

MACE_PDU_RX_COR_16QAM




• There is no negative impact is observed on major KPIs(Dashboard KPIs)• HSUPA traffic and HSUPA active cell throughput is increased a little after

feature implementation.

KPI Observation


97.0

98.0

99.0

100.0

e 180 000

200,000

220,000

240,000

90

100

110

120

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90.0

91.0

92.0

93.0

94.0

95.0

96.0

% P e r c e n t a

Pre Value

16QAM activation

Parameter tunning

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

160,000

0

10

20

30

40

50

60

70

80

Pre Value 16QAMactivation

Parametertunning

H S U P A t r a f f i c ( M b y

t e )

T h r o u g h p u t ( K b p s )

HSUPA Traffic HSUPA active cell thp




Field test was carried out on 12th May, 2014 early morning- 4:50 am to5:30am.

PrxMaxTargetBTS & PrxMaxOrigTargetBTS parameter are changed to 18from 12 for testing purpose in cell 33151. (RSCP= -50 dBm)

As we don’t have release-7 & E-DCH cat-7 UE in drive test kit, field test was

carried out with help of speednet application and NetPerSec application inPC. UE was connected to PC via modem connectivity.

Field Test


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Micromax A117 UE was used for testing purpose.

Period start time WCEL name WCEL ID EDCH_16QAM_UE_ACT_SUM MACE_PDU_RX_COR_16QAM

05.12.2014 04:00:00 SRTsndhydsnW1 133151 487.00 16,596.00

05.12.2014 05:00:00 SRTsndhydsnW1 133151 3,611.00 161,556.00

178152 16QAM PDUs and 409.8 second duration was pegged in test

cell 33151 in OSS as shown below.

OSS Results:




We received max UL speed 10.3 Mbps maxaverage speed 7 Mbps during test when UE is

connected to PC via Modem. Also, we received 7.07Mbps through speednetapplication.

Field Test


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• There are several 16QAM PDUs observed after feature activation. This provefeature is working.

• There is no impact on existing KPIs.• We received max 7.07 Mbps throughput through speednet application and10.3Mbps through netPerSec application during field test.

Summary


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Recommendation:-• High UL throughput can directly improve end customer perception. However,this feature is more suitable for micro cell, shopping malls etc where users areclose to sites due high C\I requirement.




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Ran1645-Hsupa 16qam Trial Report Rso Ro 00038

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