ewl lab test_lte1332-carrier aggregation_ september2014

02/05/20231 © Nokia 2014 - File Name - Version - Creator - DocIDConfidential

LTE1332 – Carrier Aggregation 40MHzFeature acceptance testsEWL RL60LN60_ENB_1311_630_19 (RL60 0.1)Cassina de’ Pecchi - September 2014


Brief feature description

• As an extension to LTE1089, the RL60 feature LTE1332 supports carrier aggregation in downlink for two component carriers of up to 20 MHz cell bandwidth each, plus two non-aggregated uplink cells

• The maximum aggregated downlink bandwidth is 40 MHz

• Primary aim of the feature is to boost peak user throughput in non fully-loaded scenarios by sending one UE’s DL data simultaneously over two carriers

• Maximum achievable DL peak user throughput is up to double compared to single carrier usage (non-CA) of the same bandwidth(s)


Prerequisites

• HW: FSMr3 UE: 3GPP Rel-10 (CA capable)

• Required features: LTE1089: Downlink Carrier Aggregation - 20 MHz LTE496: Support of QCI 2, 3 and 4 LTE587: Multiple GBR EPS bearers per UE LTE179: Dual Band with One System Module LTE106: 6 Cells support with one System Module


Configuration ManagementEnabling Carrier Aggregation & Prerequisite features, adjust PUCCH Region


Test scenario & eNB configuration

CA capable UE

DL GBR, D

L non-GBR, U

L

Carrier 1 Primary Cell

Carrier 2 Secondary Cell

DL non-

GBR

CA capable UE

DL GBR, D

L non-GBR, U

L

Carrier 1 Primary Cell

Carrier 2 Secondary Cell

DL non-

GBR

Inter-eNB HO

eNB 1 eNB 2

eNB1LTE2600+LTE180015+15 MHzFSMF+2FXEB+FRHC

eNB2LTE1800 + LTE80010+10 MHzFSMF+2FXEA+2FRMA

Intra-eNB HO


Test cases

EWL RL60LN60_ENB_1311_630_19 (RL60 0.1)Cassina de’ Pecchi - September 2014


RRM.6001Max data throughput DL, LNBTS11 15+15MHz, LNBTS13 10+10MHzLNBTS 11

Pcell: 2600Scell: 1800

LNBTS 11Pcell: 1800Scell: 2600




RRM.6006 (1/6)Mobility between two CA cell pairs, intra-eNB HO

LNBTS11Pcell 12: 2600Scell 32: 1800


Inte

r-fr

eq H

O LNBTS11Pcell 32: 1800Scell 12: 2600


LNBTS 11Pcell 12: 2600Scell 32: 1800

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O


RRM.6006 (2/6) Mobility between two CA cell pairs, intra-eNB HO

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Secondary cell added








Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inter-frequency HOSecondary cell added








Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Intra-frequency HOSecondary cell added








Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inter-frequency HOSecondary cell added








Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O

Intra-frequency HOSecondary cell added







RRM.6006 - PM/KPI analysis (1/2)Successful SCell configuration attemptsReception of an RRC:RRCConnectionReconfigurationComplete message related to apreceding RRC:RRCConnectionReconfiguration message, which included a"SCellToAddModList-r10" parameter and addressed to the same UE.


RRM.6006 - PM/KPI analysis (2/2)

Percentage of DL volume (in this cell with PCell role) that is transmitted via SCell‘s physical layer.

Peak DL Throughput was 222 Mbps


RRM.6007 (1/3) Mobility between two CA cell pairs, X2 based inter-eNB HO

Inte

r-fr

eq H

O

Inte

r-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

O








RSRP & RSRQ for Serving Pcell

RSRP & RSRQ for Neigh Cell

RSRP & RSRQ for Serving Scell



Secondary cell addedafter X2 HO conclusion

Path Switchafter X2 HO conclusion


RRM.6007 - PM/KPI analysis (1/2)Successful SCell configuration attemptsReception of an RRC:RRCConnectionReconfigurationComplete message related to apreceding RRC:RRCConnectionReconfiguration message, which included a"SCellToAddModList-r10" parameter and addressed to the same UE.


RRM.6007 - PM/KPI analysis (2/2)

Percentage of DL volume (in this cell with PCell role) that is transmitted via SCell‘s physical layer.

Peak DL Throughput in LNBTS11 was 227 MbpsPeak DL Throughput in LNBTS13 was 149 Mbps


RRM.6007Mobility between two CA cell pairs, S1 based inter-eNB HO

Inte

r-fr

eq H

O

Inte

r-fr

eq H

O

Inte

r-fr

eq H

O

Intr

a-fr

eq H

OLNBTS 11Pcell: 1800Scell: 2600






RRM.6008Mobility between CA cell pair and non-CA cell pair, X2 based inter-eNB HO

LNBTS 11CA 15+15 MHz

LNBTS 13non-CA10 MHz



RRM.6009Lock-Unlock of Secondary Cell in CA cell pair


Sce

ll lo

cked


Sce

ll un

lock

ed

Traf

fic

inte

rrup

tion

Det

ach/

Atta

ch

After Scell is unlocked, traffic is still not-aggregated(SCell is not configured for existing calls)

After traffic is interrupted and started again, traffic is still not-aggregated

Traffic is aggregated again after new registration of UE(SCell is configured again only for new RRC Connections)


RRM.6009Lock-Unlock of Primary Cell in CA cell pair


Pce

ll lo

cked


Sce

ll un

lock

ed

Traf

fic in

terr

uptio

n

Det

ach/

Atta

ch

After Pcell is unlocked, traffic is still not-aggregated(SCell is not configured for existing calls)

After traffic is interrupted and started again, traffic is still not-aggregated

Traffic is aggregated again after new registration of UE(PCell is configured again only for new RRC Connections)

After Pcell is locked, the call drops, UE attaches to f2 (previous SCell, now PCell) and is able to download – but not CA since f1 is still locked (traffic not-aggregated)


RRM.6009Bar-Unbar of Secondary Cell in CA cell pair


Sce

ll ba

rred


Sce

ll un

barr

ed

Traf

fic in

terr

uptio

n

Det

ach/

Atta

ch

After new registration, UE gets only non-CA DL Tput from PCell (traffic not-aggregated)

Traffic is aggregated again after new registration: UE can get a PCell and a SCell again

After Scell is barred, Pcell and Scell are both still in use, also after traffic interruption (traffic still aggregated)

Det

ach/

Atta

ch

Traf

fic in

terr

uptio

n

After Scell is unbarred, UE goes on with only non-CA DL Tput from Pcell, also after traffic interruption (traffic still not-aggregated)


RRM.6009Bar-Unbar of Primary Cell in CA cell pair


Pce

ll ba

rred


Pce

ll un

barr

ed

Traf

fic in

terr

uptio

n

Det

ach/

Atta

ch

After new registration, UE attaches to f2 (previous SCell, now PCell) and is able to download, but not CA (SCell is not configured) since f1 is barred (traffic not-aggregated)

Traffic is aggregated again after new registration: UE can get a PCell and a SCell again

After Pcell is barred, Pcell and Scell are both still in use, also after traffic interruption (traffic still aggregated)

Det

ach/

Atta

ch

Traf

fic in

terr

uptio

n

After f1 is unbarred, UE continues with non-CA on f2 as PCell, also after traffic interruption (traffic still not-aggregated)


Additional testMobility between MIMO CA cell pair and non-MIMO CA cell pair, intra-eNB HO

HO

regi

on

MIMO MIMONon-MIMO Non-MIMO MIMO

Tput is roughly halved

Tput is roughly halved

HO

regi

on

HO

regi

on

HO

regi

on

ewl lab test_lte1332-carrier aggregation_ september2014

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