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Test Report
5G Network Trial at 26/28GHz band
in Hong Kong Science Park
(Temporary Permit No. T00606)
21 May 2019
1
Table of Content
1. Introduction ..................................................................................................................... 2
2. Trial Setup ........................................................................................................................ 3
2.1 Test location ............................................................................................................. 3
2.2 NR Cell Configuration ............................................................................................. 4
2.3 Test Equipment ........................................................................................................ 4
2.3.1 28GHz 5G Active Antenna Unit (AAU) ............................................................. 5
2.3.2 28GHz Test User Equipment (TUE) ................................................................... 5
2.3.3 28GHz Signal Receiver (Huawei ARU or CPE ODU) ........................................ 6
2.3.4 28GHz Customer Premises Equipment (CPE) .................................................... 6
2.4 Network Setup ......................................................................................................... 7
3. Basic Functional Test Result ........................................................................................ 10
4. Other Tests ..................................................................................................................... 28
4.1 Peak throughput with 800MHz of bandwidth ........................................................ 28
4.2 Walk Test for NR signal measurement .................................................................. 28
4.3 Penetration Loss through glass window ................................................................. 30
5. Conclusion ...................................................................................................................... 31
2
1. Introduction
On 21 March 2017, the CA promulgated its work plan for making available
additional radio spectrum for public mobile services to meet the increasing
aspirations of service users towards 2020 and beyond. The work plan has identified
a number of frequency bands, including the 3.4 – 3.6 GHz band (“3.5 GHz band”),
the 24.25 – 27.5 GHz band and the 27.5 – 28.35 GHz band (“26/28 GHz bands”),
that can be made available for reallocation to mobile services to prepare for the
launch of fifth generation mobile (“5G”) services.
China Mobile Hong Kong (“CMHK”) opened the 5G Open Lab of CMCC 5G
Innovation Center in Hong Kong on 16 March 2018. After conducted a lab test of
5G network equipment successfully, a 5G network field trial at 28GHz band with
commercial ready products was conducted at Science Park from October 2018.
Three 5G radio sites has been deployed in Science Park for a trial period from 1
October 2018 to 31 March 2019. Various tests including speed and signal
measurement was performed. Most of the trial tests were conducted by using
400MHz of bandwidth, while peak throughput measurement was done for
400MHz and 800MHz of bandwidth. This report provides details of the test
result obtained during the trial.
3
2. Trial Setup
2.1 Test location
Location: Hong Kong Science Park (HKSTP)
Testing Area : Grand Plaza and Science Park East Avenue (Phase 2 area)
5G site locations:
5G Simulation engineering table:
Site Sector Pcell PCI Scell PCI Type Latitude Longitude Bearing Tilt
5443 S1 100 101 NR 114.21 22.4283 150 20
S2 200 201 NR 114.2099 22.42835 225 20
5413
S1 20 21 NR 114.2107 22.42639 100 20
S2 20 31 NR 114.2103 22.42617 175 20
S3 40 41 NR 114.2108 22.42698 46 20
S4 10 11 NR 114.2104 22.42685 226 20
5412 S2 302 303 NR 114.2125 22.42592 340 20
S1 300 301 NR 114.2121 22.42547 265 20
4
2.2 NR Cell Configuration
Frequency Band n257
Downlink NARFCN 2074959/2078291
Test Frequency 27.6 – 28 GHz (400MHz of
bandwidth)
Downlink Bandwidth 200MHz X 2
Subcarrier Spacing(KHz) 120
Slot Assignment 4:1
Max Transmit Power 65 dBm (EIRP)
(N.B. 27.5 to 28.3 GHz (800MHz of bandwidth) is granted in trial permit.)
2.3 Test Equipment
In order to observe the high speed of 5G NR, Huawei used Test User Equipment
(TUE) to act as the UE for performing DL/UL services, and use a software tool
called “OMT” to control 4G/5G TUE and capture log.
Item Device or software Count
1 LTE OMT (V300R013C10SPC930T) 1
2 5G OMT (V200R002C00SPC712T) 1
3 5G 28Ghz TUE with 4G TUE 1
4 5G 28Ghz ARU 1
5 5G 28Ghz CPE 1
6 notebook (with Windows 7) 1
7 LAN Switch 1
8 LAN Cable (with one 10G SFP) 4 (at least 1 CAT6)
5
2.3.1 28GHz 5G Active Antenna Unit (AAU)
Item Specification
AAU model HAAU5213
Frequency(GHz) 26500~29500MHz band
Operating Bandwidth 2 x 200MHz & 4 x 200MHz
Tx/Rx Configuration 4T4R
Sweep Range H:120°, V:30°
Dimensions (H x W x D) 585 mm × 300 mm × 152 mm
Weight (kg) ~20
2.3.2 28GHz Test User Equipment (TUE)
6
Item Specification
Frequency 28 GHz
Antenna 2T4R
2.3.3 28GHz Signal Receiver (Huawei ARU or CPE ODU)
Item Specification
Frequency Band (GHz) 28GHz
Dimensions (H x W x D) 380 x 248 mm x 100 mm
Antenna 2T4R
2.3.4 28GHz Customer Premises Equipment (CPE)
Item Specification
Frequency 28 GHz
Antenna 2T2R
8
28GHz mmWave ARU setup:
LTE eNodeB and 5G gNodeB to Core network configuration (N.B. use of a
test PLMN to conduct the 5G network field trial, separated from live network
in order to avoid any live service impact):
9
Description of basic functional test cases
Weather Test Item Subitem Test Description UE Status
DL SCG Only, DL Traffic checking
according to SCG onlyDL NR only,UDP TUE Pass
DL MCG + SCG, DL Traffic checking
according to MCG and SCG Separately下行分流,UDP TUE Pass
UL SCG Only, UL Traffic checking
according to SCG onlyDL NR only,UDP TUE Pass
UL MCG + SCG, UL Traffic checking
according to MCG and SCG Separately上行分流,UDP TUE Pass
Secondary Node Addition
Check sending "SgNB Addition
Request/SgNB Addition Request
ACK/SgNB Reconfiguration Complete "NR 辅载波添加 TUE Pass
1) SgNB Release Request sending on
MNPass
2) SgNB Release Required sending on
SNPass
Single User Peak
Throughput (DL UDP)
DL Peak throughput test of a single UE
at the Cell Center(UDP)单用户下行峰值,UDP TUE Pass
Single User Peak
Throughput (UL UDP)
UL Peak throughput test of a single UE
at the Cell Center(UDP)单用户上行峰值,UDP TUE Pass
Single User Peak
Throughput (DL UDP)
DL Peak throughput test of a single UE
at the Cell Center(UDP)单用户下行峰值,UDP TUE Pass
Single User Peak
Throughput (UL UDP)
UL Peak throughput test of a single UE
at the Cell Center(UDP)单用户上行峰值,UDP TUE Pass
Single cell UL coverage test (UE moves
from near point to far point)上行拉远 TUE Pass
Single cell DL coverage test (UE moves
from near point to far point)下行拉远 TUE Pass
NSA->LTE only TUE Pass
LTE only->NSA TUE Pass
SCG NR站内切换 SCG NR站内切换 TUE Pass
SCG NR站间切换
Separated BBU and transmission
interconnection,Option3X,SCG
change test based on intra-freq
handover in the same site
SCG NR站间切换 TUE Pass
MCG LTE站内切换 MCG LTE站内切换 TUE Pass
NSA lost
network to
LTE ability
(funcational
test)
NSA->LTE only CPE Pass
Single User Peak
Throughput (DL UDP)
DL Peak throughput test of a single UE
at the Cell Center(UDP)单用户下行峰值,UDP CPE Pass
Single User Peak
Throughput (UL UDP)
UL Peak throughput test of a single UE
at the Cell Center(UDP)单用户上行峰值,UDP CPE Pass
NR 辅载波释放 TUE
DC Basic Functions
Peak
Throughput
(co-site
anchor)
CoverageSingle-cell outdoor
coverage test
Secondary Node Release
Rainy Day
Mobility
(funcational
test)
Peak
Throughput
(Not co-site
anchor)
Sunny Day
Peak
Throughput
(co-site
anchor)
NSA
10
3. Basic Functional Test Result
Test number 3.1
Test items
NSA – DC Basic function
Test aim To test if TUE can DL & UL using NR only and LTE + NR (DC)
Test equipment
1. LTE TUE x 1
2. 5G TUE x 1
3. LTE OMT x 1 & 5G OMT x1
4. Notebook x 1
Test result
Set DL and UL at SCG only:
SCG only Download:
Subitem Test Description UE Status
DL SCG Only, DL Traffic checking
according to SCG onlyDL NR only,UDP TUE Pass
DL MCG + SCG, DL Traffic checking
according to MCG and SCG Separately下行分流,UDP TUE Pass
UL SCG Only, UL Traffic checking
according to SCG onlyDL NR only,UDP TUE Pass
UL MCG + SCG, UL Traffic checking
according to MCG and SCG Separately上行分流,UDP TUE Pass
DC Basic Functions
4G DL 5G DL
12
Set Download at MCG & SCG:
MCG & SCG Download:
Test number 3.2
Test items
NSA – Secondary Node Addition & Release
Test aim To test if TUE can perform secondary node addition & release normally
Test equipment
5. LTE TUE x 1
6. 5G TUE x 1
7. LTE OMT x 1 & 5G OMT x1
8. Notebook x 1
Test Item Subitem Test Description UE Status
Secondary Node Addition
Check sending "SgNB Addition
Request/SgNB Addition Request
ACK/SgNB Reconfiguration Complete "NR 辅载波添加 TUE Pass
1) SgNB Release Request sending on
MNPass
2) SgNB Release Required sending on
SNPass
Secondary Node Release NR 辅载波释放 TUE
NSA
4G DL 5G DL
13
Test result
Secondary Node Addition:
From LTE eNodeB X2 trace, it contain “SGNB_ADD_REQ”,
“SGNB_ADD_REQ_ACK” and “SGNB_RECONFIG_CMP” which represents
SgnodB addition successfully.
Secondary Node Release:
From LTE eNodeB X2 trace, it contain “SGNB_REL_REQ”,
“SGNB_REL_REQ_ACK” and “UE_CONTEXT_RELEASE” which represents
SgnodB release successfully.
Test number 3.3
Test items
Peak Throughput (co-site anchor & non co-site anchor)
Test aim To test the peak DL and UL throughput of NR cell.
Test equipment
1. LTE TUE x 1
2. 5G TUE x 1
3. LTE OMT x 1 & 5G OMT x1
4. Notebook x 1
Test Item Subitem Test Description UE Status
Single User Peak
Throughput (DL UDP)
DL Peak throughput test of a single UE
at the Cell Center(UDP)单用户下行峰值,UDP TUE Pass
Single User Peak
Throughput (UL UDP)
UL Peak throughput test of a single UE
at the Cell Center(UDP)单用户上行峰值,UDP TUE Pass
Single User Peak
Throughput (DL UDP)
DL Peak throughput test of a single UE
at the Cell Center(UDP)单用户下行峰值,UDP TUE Pass
Single User Peak
Throughput (UL UDP)
UL Peak throughput test of a single UE
at the Cell Center(UDP)单用户上行峰值,UDP TUE Pass
Peak
Throughput
(Not co-site
anchor)
Peak
Throughput
(co-site
anchor)
14
Test result
5G site 5412 S1 (400MHz, Rank 2 , non co-site anchor case)
Peak DL MAC layer throughput ~2.15Gbps
Peak UL MAC layer throughput ~ 395Mbps
5G site 5412 S2 (400MHz, Rank 2, non co-site anchor case)
Peak DL MAC layer throughput ~2.46Gbps
Peak UL MAC layer throughput ~ 95Mbps
DL ~ 2.46Gbps
DL ~ 2.15Gbps
UL ~ 395Mbps
15
5G site 5443 S1 (400MHz, Rank 2, co-site anchor case)
Peak DL MAC layer throughput ~2Gbps
Peak UL MAC layer throughput ~ 241Mbps
5G site 5443 S2 (400MHz, Rank 2, co-site anchor case)
Peak DL MAC layer throughput ~2.34Gbps
Peak UL MAC layer throughput ~ 433Mbps
UL ~ 95Mbps
DL ~ 2Gbps
UL ~ 241Mbps
DL ~ 2.34Gbps
16
Test number 3.4
Test items
Outdoor cell coverage test
Test aim To test the coverage and throughput of NR cell
Test result
Stationary UDP / OFCA throughput and latency test result (400MHz,
Rank2)
Test Item Subitem Test Description UE Status
Single cell UL coverage test (UE moves
from near point to far point)上行拉远 TUE Pass
Single cell DL coverage test (UE moves
from near point to far point)下行拉远 TUE Pass
CoverageSingle-cell outdoor
coverage test
Point cell PCI 5G site-sector 4G site beamID RSRP SINR UDP DL THP UDP UL THP OFCA DL DL THP OFCA DL UL THP OFCA Latency
P1 100 5443-S1 3446 6 -84 23 2.89 Gbps 530 Mbps 431.6 Mbps 459.6 Mbps 9.32 ms
P2 200 5443-S2 3446 1 -106 9 670 Mbps 93 Mbps 219.4 Mbps 79.6 Mbps 9.94 ms
P3 302 5412-S2 3446 27 -90 23 2.53 Gbps 470 Mbps 319.6 Mbps 296 Mbps 10.04 ms
P4 302 5412-S2 3446 27 -100 12 1.83 Gbps 201 Mbps 344.4 Mbps 186.2 Mbps 9.34 ms
P5 302 5412-S2 3446 26 -108 5 870 Mbps 10 Mbps 265 Mbps 8.92 Mbps 11.4 ms
P6 200 5443-S2 3446 16 -119 -10
NA (due to 5G too
weak to camp on)
NA (due to 5G too
weak to camp on)
NA (due to 5G too
weak to camp on)
NA (due to 5G too
weak to camp on)
NA (due to 5G too
weak to camp on)
P7 300 5412-S1 3446 16 -103 9 994 Mbps 82 Mbps 311 Mbps 68.8 Mbps 10.04 ms
P8 100 5443-S1 3446 14 -97 14 1.47 Gbps 139 Mbps 326.4 Mbps 135.8 Mbps 10.32 ms
UL ~ 433Mbps
17
3 NR cell RSRP comparison (different penetration loss)
UDP drive test route
Point cell PCI 5G site-sector RSRP Distance
P1 100 5443-S1 -84 ~80m
P2 40 5413-S1 -104 ~80m
P3 302 5412-S2 -100 ~90m
18
TUE UDP drive test SINR vs RSRP
TUE UDP DL throughput vs SINR
Test number 3.5
Test items
Mobility (functional test)
19
Test aim To test the mobility of NR cell
Test equipment
1. LTE TUE x 1
2. 5G TUE x 1
3. LTE OMT x 1 & 5G OMT x1
4. Notebook x 1
Test result
Intra-gNodeB Handover signal flow:
5G 5443 S2 handover to S1 message:
TUE OMT message:
21
TUE OMT message:
NSA -> LTE only HO:
5G cell released at 18:33, physical layer DL throughput dropped to 0 Mbps.
22
LTE cell keep activating at 18:33 and physical layer DL throughput increased to about
20Mbps.
Test number 3.6
Test items
CPE NSA lost network to LTE ability (functional test)
Test aim To test the inter-RAT ability of CPE
Test equipment
1. CPE x1
2. Test mobile x 1
Test result
Active mode:
17:23:43 Enter “DEA NR CELL”
17:23:43 SCNB_RELEASE_REQ
17:24:11 Enter” ACT NR CELL”
17:24:32 SCNB_ADD_REQ
Test Item Subitem Test Description UE Status
NSA lost
network to
LTE ability
(funcational
test)
NSA->LTE only CPE Pass
23
Test mobile can still perform download using 4G when 5G cell down.
Idle mode:
17:30:01 Enter “DEA NR CELL”
17:30:01 SCNB_RELEASE_REQ
17:30:10 Enter” ACT NR CELL”
17:30:24 SCNB_ADD_REQ
24
Test number 3.7
Test items
Rainy day and Sunny day CPE Peak DL and UL throughput
Test aim To compare CPE peak DL and UL throughput in rainy day vs sunny day
Test equipment
1. 5G mm wave CPE x1
2. CPE OMT x1
3. Notebook x 1
4. Test mobile phone x1
Test result
Test location:
25
NR RSRP and SINR
NR RSRP NR SINR
Rainy day -81 dBm 28
Sunny Day -77 dBm 31
Comparing rainy day and sunny day, there was about 4dBm difference in RSRP,
while SINR difference was about 3. However, the result may vary, depending on the
amount of rain during testing period.
Rainy day:
Sunny day:
27
OFCA test result
Rainy day:
Sunny day:
Overall Speed test Summary:
Download
(Mbps)
Upload
(Mbps)
Network
Latency (ms)
Avg
Download
(Mbps)
Avg Upload
(Mbps)
Rainy Day
425 115 16
430.67 124.33 432 129 8
435 129 11
Sunny day
442 130 14
456.33 130.33 452 131 14
475 130 13
CPE DL and UL throughput in sunny day were about 6% and 4.8% higher than
rainy day respectively. However, the result may vary, depending on the amount of
rain during testing period.
28
4. Other Tests
4.1 Peak throughput with 800MHz of bandwidth
The peak data throughput reached 9Gbps could be achieved with 800MHz of
bandwidth and 4 data streams (Rank 4) in this field trial. The throughput is lower than
the one achieved during lab trial (14.3Gbps) done before, which is in an indoor
optimal environment with lesser interference.
4.2 Walk Test for NR signal measurement
A walk test has been conducted with 5G NR scanner along Science Park Road East
and West, for signal measurement from the three installed 5G sites.
Site Sector Pcell PCI Scell PCI Type Latitude Longitude Bearing Tilt
5443 S1 100 101 NR 114.21 22.4283 150 20
S2 200 201 NR 114.2099 22.42835 225 20
5413
S1 20 21 NR 114.2107 22.42639 100 20
S2 20 31 NR 114.2103 22.42617 175 20
S3 40 41 NR 114.2108 22.42698 46 20
S4 10 11 NR 114.2104 22.42685 226 20
5412 S2 302 303 NR 114.2125 22.42592 340 20
S1 300 301 NR 114.2121 22.42547 265 20
29
With 5G mmWave AAU installed at rooftop (Building 20E) transmitting at maximum
power, the Line Of Sight (LOS) coverage can reach 160-200 meters. Also, signal
coverage is observed in some NLOS spots through reflection from buildings.
30
4.3 Penetration Loss through glass window
Signal measurement inside and outside a building separated by glass window has been
conducted. It shows that the signal penetration loss of mmWave through glass
window of a building at Science Park is about 20dBm. Of course, the penetration loss
will vary depending on the material and thickness of the window.
31
5. Conclusion
The 5G trial network at 28GHz (mmWave) with commercial ready product is
successfully deployed at Science Park. Three 5G radio base station sites has been
installed at the rooftop of buildings at Science Park. All basic functional tests
including data throughput, dual connectivity, mobility and coverage under 5G
network environment are verified satisfactorily.
The downlink throughput is high with 5G network at 28GHz. The peak downlink
speed can reach 2.4Gbps (2 streams) & 5.1Gbps (4 streams) with 400MHz of
bandwidth, and nearly 9Gbps (4 streams) with 800MHz of bandwidth in outdoor
environment. The network latency is about 10-15ms, which is lower than the
existing 4G network (30-40ms).
The 5G NR radio signal propagation loss and penetration loss of mmWave
spectrum is high. With the rooftop sites transmitting at maximum power, the
effective cell coverage is about 160-200 meters LOS in outdoor environment.
The radio coverage through reflection from building is observed. The signal
penetration loss through typical glass window at Science Park is about 20dBm.
Besides functional tests, end-to-end 5G network connectivity supporting fast
internet browsing experience, 4K CCTV HD video transmission, VR360 camera
video transmission were tested with good performance during the trial.
28GHz (mmWave) is suitable for hot spot deployment of 5G network, in order to
support applications with high data speed and low latency.