LTE Trial Test Result (Etisalat) -V1.6

LTE/SAE Trial Results Etisalat Etisalat UAE

Nokia Siemens Networks LTE  Trial  Team

July 2010, Dubai UAE

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Contents • Network Configuration • Coverage Plot based on drive test • Single User Throughput • Sector Throughput • Latency • Mobility: cell reselection and Handover • Link Budget • Annex: eNB automatic neighbors list creation

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Network Configuration

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Coverage Plot Based on Drive Test

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Condition: • One UE with TCP Downlink application • Only site 4106 is unlocked, the other sites are locked • TX power was set as 60 watt • Logging with XCAL Drive Test tool

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Serving Cells Plot

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RSRP Coverage Plot (dBm)

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SINR Coverage Plot (dB)

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Downlink Throughput (Mbps)

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Single User Throughput

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Single User Throughput – Test Scenario The objective of the test is to verify the capability of the LTE air interface to provide DL and UL throughput for a single user in different radio conditions with different application protocols

•   Application protocols  – TCP (DL/UL)  – UDP (DL/UL) • DL antenna configuration  – 2 x 2 DL Adaptive OL MIMO •   Radio conditions  –   stationary • UE is LTE category 3 Samsung device (Throughput is limited 100/50 Mbps (DL/UL)) • UE device providing 1 second measurement period to Xcal LTE tool

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Single User Throughput ‐ TCP Downlink •   Average RSRP : ‐70.71 dBm, Average SINR : 27.67 dB • DL average throughput : 90.16  Mbps • DL peak throughput : 101.1 Mbps *

* UE device providin g 1 second measurement period to Xcal LTE tool LTE Trial for Etisalat – Test results 12

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Single User Throughput ‐ TCP Uplink •   Average RSRP : ‐69.74 dBm, Average SINR : 26.76dB (Both measured in DL) • UL average throughput : 36.50 Mbps • UL peak throughput : 40.48 Mbps

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Single User Throughput ‐ UDP Downlink •   Average RSRP : ‐65.35 dBm, Average SINR : 26.24 dB • DL average throughput : 93.90 Mbps • DL peak throughput : 102.11 Mbps * Phy DL TP(Mbps) 120 100 80 60

Phy DL TP(Mbps)

40 20 0         4         5         3   .         0         1       :         5         1       :         7         1

        2         5         0   .         6         1       :         5         1       :         7         1

        8         5         3   .         1         2       :         5         1       :         7         1

        5         5         3   .         7         2       :         5         1       :         7         1

        6         5         3   .         2         3       :         5         1       :         7         1

        7         5         3   .         7         3       :         5         1       :         7         1

        2         5         0   .         3         4       :         5         1       :         7         1

        8         5         3   .         8         4       :         5         1       :         7         1

        9         5         3   .         3         5       :         5         1       :         7         1

        0         6         3   .         8         5       :         5         1       :         7         1

        2         6         3   .         3         0       :         6         1       :         7         1

        2         5         0   .         9         0       :         6         1       :         7         1

        0         6         3   .         4         1       :         6         1       :         7         1

        1         6         3   .         0         2       :         6         1       :         7         1

        2         6         3   .         5         2       :         6         1       :         7         1

        2         6         3   .         0         3       :         6         1       :         7         1

        4         6         3   .         5         3       :         6         1       :         7         1

        4         6         3   .         0         4       :         6         1       :         7         1

        5         6         3   .         6         4       :         6         1       :         7         1

* UE device providin g 1 second measurement period to Xcal LTE tool LTE Trial for Etisalat – Test results 14

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        2         5         0   .         3         5       :         6         1       :         7         1

        6         6         3   .         8         5       :         6         1       :         7         1

Single User Throughput – UDP Uplink •   Average RSRP : ‐69.39 dBm, Average SINR : 26.92 dB (Both Measured in DL) • UL average throughput : 35.94 Mbps • UL peak throughput : 38.76 Mbps

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Single User Throughput ‐ TCP Downlink Summary

Measured Radio con diti on Reference LTE Trial for Etisalat – Test results 16

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Single User Throughput ‐ TCP Uplink Summary

Measured Radio con diti on * RSRP & SINR measured in DL LTE Trial for Etisalat – Test results 17

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Single User Throughput ‐ UDP Downlink Summary

Measured Radio con diti on Reference LTE Trial for Etisalat – Test results 18

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Single User Throughput ‐ UDP Uplink Summary

Measured Radio con diti on * RSRP & SINR measured in DL

Reference

Poor condition was not achieved during the test due to sudden increase in the SINR during testing session LTE Trial for Etisalat – Test results 19

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Sector Throughput

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Objectives & Conditions •Sector throughput – Scenario A.1  –   Four UEs placed stationary in excellent radio conditions  –  TCP DL/UL traffic (FTP)  –   Cell capacity is the aggregated physical layer throughput from each UE •Sector Throughput – Scenario A.2  –   Four UEs placed stationary in good radio conditions  –  TCP DL/UL (FTP)  –   Cell capacity is the aggregated physical layer throughput from each UE • Sector throughput – Scenario B  –  Two UEs placed stationary in good radio conditions, one in average and one in poor radio conditions  –  TCP DL/UL traffic (FTP)  –   Cell capacity is the aggregated physical layer throughput from each UE •Sector throughput – Scenario C  –   Three UEs placed stationary in good radio conditions and one UE mobile (from good to average and poor, then back to good)  –  TCP DL/UL traffic (FTP)  –   Cell capacity is the aggregated physical layer throughput from each UE

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Sector Throughput Downlink Direction

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Scenario A.1 ‐ TCP DL Results • •

Two Stationary UEs in Excellent Radio Condition and another two stationary UEs in Good radio condition UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 118.1 Mbps •   Peak Sector Throughput 142.76 Mbps

Reference

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Measured Me asured Radio Radio con diti on

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Scenario A.2 ‐ TCP DL Results •   Four Stationary UEs in Good Radio Conditions • UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 78.25 Mbps •   Peak Sector Throughput 95.66 Mbps

Reference

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Scenario B ‐ TCP DL Results • •

UE1 in Average RF, UE2 in Poor RF, UE3 & UE4 in Good RF UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 61.73 Mbps •   Peak Sector Throughput 99 Mbps

Reference

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Scenario C - TCP DL Results 1/2 •   UE1, UE3, UE4 in Good RF. UE2 is mobile moving from Good RF to Average and to Poor then return back to Good • UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 105.05 Mbps •   Peak Sector Throughput 118.1 Mbps

Reference

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Scenario C - TCP DL Results 2/2 •

GIS Plot of Moving UE2 can be seen as below

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Sector Throughput Uplink Direction

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Scenario A.1 ‐ TCP UL Results • •

Two Stationary UEs in Excellent Radio Condition and another two stationary UEs in Good radio condition UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 34.87 Mbps •   Peak Sector Throughput 43.98 Mbps

Reference

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Scenario A.2 ‐ TCP UL Results •   Four Stationary UEs in Good Radio Conditions • UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 24.06 Mbps •   Peak Sector Throughput 32 Mbps

Reference

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Scenario B ‐ TCP UL Results • •

UE1 in Average RF, UE2 in Poor RF, UE3 & UE4 in Good RF UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Sector Throughput 21.11 Mbps •   Peak Sector Throughput 32.2 Mbps

Reference

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Scenario C - TCP UL Results 1/2 •   UE1, UE3 and UE4 are in excellent or good RF, UE2 is mobile from good to average and poor RF • UEs Synchronized with NTP server before the test and results aggregated with time stamps to get sector throughput •   Average Throughput 18.6 Mbps •   Peak Throughput 32.5 Mbps Reference

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Scenario C - TCP UL Results 2/2 •

GIS Plot of Moving UE2 can be seen as below

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Latency

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Objectives & Conditions • Objective:

Measure the control plane signaling processing time and the end-to-end user plane delay, i.e. Round Trip Time (RTT). Tests will be executed in the field at good SINR conditions. • Control plane:

 – Location in field: stationary UE’s in the target cell at good SINR locations  – Signaling procedures: UE Attach, Radio Bearer Setup and UE Detaches from active state • User plane:

 – Location in field: stationary UE’s in the target cell at good SINR locations  – Ping application server with 32Bytes, 1000Bytes, 1500Bytes with 100 pings session

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Control Plane Latency – Attach & Bearer Setup

29 ms 5 ms

116 ms

5 ms

Total time for UE to attach (EMM-registered) and setup default bearer (ECM-Connected) takes around 155 ms (including UE processing delay). LTE Trial for Etisalat – Test results 36

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Control Plane Latency – UE Detach

46 ms

1 ms

Total time of UE detach from active state takes around 47 ms. LTE Trial for Etisalat – Test results 37

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User Plane Latency-32Bytes Ping  Av erage: 11m s Minimum : 10ms Maximu m: 33ms

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User Plane Latency-1000Bytes Ping  Av erage: 23m s Minimum : 19ms Maximu m: 38ms

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User Plane Latency-1500Bytes Ping  Av erage: 27m s Minimum : 21ms Maximu m: 57ms

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User Plane Latency - Summary 60 50 40

     )     s     m      (      T30      T      R

27 23

20 11

10 0 Average

Minimum

Maximum 32B

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1000B

1500B

Mobility: Cell Re-selection

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Objectives & Conditions • Objective:

Verify that cell reselection happens within the conditions set by the parameters. • Parameters:

 – Sintrasearch  – qrxlevmin  – qoffset  – qhyst  – Treselection

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Cell reselection Process

UE will start to measure intra frequency neighbors when Rx level of serving cell is below sum of Sintrasearch + qrxlevmin. Cell reselection will happen when Rn > Rs within Treselection timer period. LTE Trial for Etisalat – Test results 44

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Cell Reselection Result

BCCH-DL SCH information list cell 101 as neighbor for cell 100

UE camp on cell 100. When the RSRP of c ell 101 is 3dB (qoffset + qhy st) higher than cell 100 then cell reselection is trig gered if th is condition i s fulfi lled for 2 seconds (Treselection).

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Mobility: Handover 

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Objectives & Conditions • Objective: Verify functionality of intra-eNodeB and inter eNodeB triggered by the event A3 (better cell HO) and A5 (handover threshold based on RSRP measurements).

• Application : TCP IP DL and UL

• Location: UE performing intra/inter eNodeB handover from serving to target cell/target eNodeB

• Vehicle Speed: The range of speed during the handover tests was between 30 to 60 Kph

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Mobility and Handover – Condition The successful handover was determined by verifying the following message sequence: • Measurement Report sent from UE to source cell.  –  Event A3: Neighbouring Cell becomes better than Serving Cell.  –  Event A5: Serving becomes worse than threshold1 and neighbor becomes better than threshold2

•   RRCConnectionReconfiguration message including MobilityControlInfo sent by a source cell to UE. •   RRCConnectionReconfigurationComplete sent from UE received by a target cell The control plane interruption time was determined by calculating: • The time from a UE receiving the RRCConnectionReconfiguration message in the source cell to sending the RRCConnectionReconfigurationComplete message in the target cell.

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Mobility and Handover – Intra eNodeB time

35 ms

Handover command 29 ms

Handover comp lete

Total time from measurement report to handover: 64 ms (in average) LTE Trial for Etisalat – Test results 49

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Handover Events Identification

In rrcConnectionReconfiguration message for measurement configuration, eNodeB sent reportConfigId identifier. In the measurementReport message, measId identifier refer to the handover event: - measId 1 = event A3 - measId 2 = event A5 - measId 3 = event A2 LTE Trial for Etisalat – Test results 50

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Handover procedure triggered by event A3

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Mobility and Handover – Intra eNodeB with A3 HO trigger 

Serving cell RSRP = 49, i.e. -140 + 52 = -91 dBm

Target cell RSRP = 52, i.e. -140 -52 = -88 dBm

The Event A3 reporting threshold condition (eNB parameter: a3Offset = 3 dB) is fulfilled and the UE sends handover measurement report to the serving eNodeB. The intra eNodeB handover from Cell ID 102 to Cell ID 100 is executed. LTE Trial for Etisalat – Test results 52

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Handover procedure triggered by event A5

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Mobility and Handover – Intra eNodeB with A5 HO trigger 

Serving cell RSRP = 49, i.e. -130 + 49 = -81 dBm

Target cell RSRP = 54, i.e. -130 -54 = -76 dBm

In order to perform HO with A5 trigger, A3offset has been changed to avoid HO due to A3 (15 dB). Based on measurement report, it is showing that UE was served by cell 100. And measure cell 101 as target when serving cell below A5 threshold (set by parameter was -80 dBm) and decided to HO since the target is better than -77 dBm (set by parameter) after time to trigger is achieved. LTE Trial for Etisalat – Test results 54

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Intra eNodeB Handover – DL Throughput Impact (1 of 2) Number of Handover attempts were 14, 7 in clockwi se and 7 in countercloc kwise, Handovers with 100% success rate

Handovers were performed from cell ID 102 to 100, 100 to 101 and 101 to 102. During the handover, there is no throughput gap. Fluctuations in throughput are due to SINR during mobile test. LTE Trial for Etisalat – Test results 55

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Intra eNodeB Handover– DL Throughput Impact (2 of 2)

Fluctuation of throughput during handover is due to SINR. There is no gap throughput during handover. LTE Trial for Etisalat – Test results 56

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Intra eNodeB Handover– UL Throughput Impact (1 of 2) Number of Handover attempts were 16, 8 in clockwi se and 8 in counterclock wise, Handovers with 100% success

Handovers were performed from cell ID 101 to 102, 102 to 100 and 100 to 101. During the handover, there is no throughput gap. Fluctuations in throughput are due to SINR. LTE Trial for Etisalat – Test results 57

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Intra eNodeB Handover– UL Throughput Impact (2 of 2)

Fluctuation of throughput during handover is due to SINR. There is no gap throughput during handover. LTE Trial for Etisalat – Test results 58

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Mobility and Handover – Inter eNodeB

53 ms

Handover command 30 ms

Handover complete

Total time from measurement report to handover: 83 ms (in average) LTE Trial for Etisalat – Test results 59

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Mobility and Handover – Inter eNodeB

Serving cell RSRP = 55, i.e. -130 + 55 = -75 dBm

Target cell RSRP = 58, i.e. -130 -58 = -72 dBm

UE was originally camping to cell 401 belong to site 2549. Due to A3 HO trigger, UE handover to cell 100 belong to site 4106. LTE Trial for Etisalat – Test results 60

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Inter eNodeB Handover– DL Throughput Impact (1 of 2) Number of Handover attempts is 20, Handovers with 100% success rate

Handovers were performed between cells ID 100 to 202 and 400. During the handover, there is no throughput gap. Fluctuations in throughput are due to SINR (see next slide). Speed was between 30 and 60 Kph. LTE Trial for Etisalat – Test results 61

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Inter eNodeB Handover– DL Throughput Impact (2 of 2)

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Inter eNodeB Handover– UL Throughput Impact (1 of 2) Number of Handover attempts i s 16, Handovers with 100% success rate

Handovers were performed between cells ID 100 to 202 and 400. During the handover, there is no throughput gap. Fluctuations in throughput are due to SINR (see next slide). Speed was between 30 and 60 Kph. LTE Trial for Etisalat – Test results 63

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Inter eNodeB Handover– UL Throughput Impact (2 of 2)

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Link Budget

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Link Budget – Test Scenario • Objective: To show relation between achieved throughput with SINR and RSRP

•  Application: TCP IP downlink and uplink

• Location: One UE using applications (TCP DL, TCP UL) move from good SINR to cell edge (poor SINR) for antenna configuration (adaptive OL MIMO DL), without interference (all neighboring cells with 0% load). Cell edge will be searched and the UE will be moving along the predicted cell edge to have statistically reliable results

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Link budget – RSRP versus DL throughput

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Link budget – SINR versus DL throughput

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Link budget – RSRP versus UL throughput

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Link budget – SINR versus UL throughput

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 Annex: eNB automatic neighbors list creation 1/1

Extract of a commissioning file after the eNB populated it’s cell neighbor list.

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During commissioning of the eNB, only the IP address of the neighbor eNB is required.  After the eNB has setup the X2 interface with the neighbor eNB, then it will exchange all necessary information of neighbor cells. That information is stored in the eNB commissioning file (see next slide)

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