Hoang L.

TELECOM ENGINEER

554 dollar
Freelancer
9 years
Ho Chi Minh City, VIETNAM

My experience

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Ericsson Vietnam Company LtdJanuary 2019 - June 2019

VIETTEL 5G Trial Project
Main Responsibilities: 
• RAN Snr Integration Engineer

Integration engineer 
• Do FNI Integration 03 5G NR HighBand node (Option 3x, BB6630, AIR5121, SW MTR 19.17, QUALCOMM MTP 8150, WNC) (Viettel5GProject (Web view)) 

o NRO teamlead for NR integration part 
o Do FNI for three nodes 
o Prepare scripts for all eNB & gNB 
o Commissioning for all RAN nodes 
o Do troubleshooting for ENDC configuration, Certificate configuration for gNB 
o Join all troubleshooting session for 5G throughput 
o How to tracing signaling for in anchor eNB 
o Do server performance test (Server performance test & Transport performance test with iperf) 
• Do FNI Integration 02 5G NR Midband node (Option 3x, BB6630, AIR6488, SW MTR 19.17, QUALCOMM MTP 8150, WNC) (Viettel5GProject (Web view)) 
o NRO teamlead for NR integration part 
o Do FNI for two midband nodes 
o Prepare scripts for all eNB & gNB 
o Commissioning for all RAN nodes 
o Do troubleshooting for ENDC configuration, Certificate configuration for gNB 
o Join all troubleshooting session for 5G throughput 
o How to tracing signaling for in anchor eNB
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Ericsson Vietnam Company LtdJanuary 2018 - January 2019

VIETTEL LTE 2019 Project PO11 and PO12 

Main Responsibilities: 
• General technical responsible for the project 
• Integration Team leader 
• Customer interface 
• Technical solution. 

Integration engineer 
• 3G feature test (Test in Lab & live network) 
• 4G feature test (Test in Lab & live network) 
• 2G feature test (Test in Lab & live network) 
• EVO BSC8200 Integration (20 new BSC) 
• FNI Baseband 6630 3G with Radio 4415B1 
• FNI Mixed Mode 3G+4G with BB6630+Radio4415B1
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Ericsson Vietnam Company LtdDecember 2016 - January 2018

VIETTEL LTE 2017 Project PO 01 to PO9 ( 9 continuous projects) 

Main Responsibilities: 
• General technical responsible for the project 
• Integration Team leader 
• Customer interface 
• Technical solution. 

Integration engineer 
• Test and support testing 224 new LTE, 2G, 3G feature (work together with GSC team) 
• Support PM for presale phase of VIETTEL LTE 2017 (support for feature test consultation, HW/SW for enodeB 4G consultation, SW tool consultation.) 
• General technical responsible for the project 
• Do MoP preparation for new enodeB (BB521x) 4G integration 
• Do training 1200 customers for new enodeB 4G (Baseband 521x) integration (prepare training document, onsite theory training and LAB practical for customer) 
• Do Acceptance Test with customer (feature ATP, sample site ATP..) 
• Support writing/prepare MOP for 224 new LTE feature ( interface for SEU team, and customer during the MOP preparation phase) 
• Troubleshooting, LEAD (KPI issue, operation issue, rollout new feature issue), to be contact point for E/// second line and third line to support difficult project issue. 
• Technical interview for to find good candidate for project (5 engineers for this project), also support interview engineer for other projects 
• Do FNI Smallcell 3G&4G with BB6502+RRU2203 
• Do FNI Smallcell with BB6501 4G 
• Do FNI for new product (AIR21 4G) 
• Do FNI for new product (Radio DOT Dual Band)
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Ericsson Vietnam Company LtdSeptember 2015 - November 2016

VIETTEL 3G Expansion Project PO /05 

Main Responsibilities: 
• General technical responsible for the project 
• Integration Team leader 
• Customer interface 
• Technical solution. 
Integration engineer 
• General technical responsible for the project 
• MOP preparation for new customer requirement. 
• Acceptance Test document preparation 
• HLD & LLD for 21 new RNC8200 
• Support/training team member to integrate new RNC to VIETEL network 
• Software Upgrade for 18 RNC W14B to W16B, LEAD 
• Test 23 new feature 2G & 3G, LEAD 
• Support testing, integration, rollout & troubleshooting PICO6402 WCDMA 
• Troubleshooting, LEAD (KPI issue, operation issue, rollout new feature issue), to be contact point for E/// second line and third line to support difficult project issue.
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Ericsson United Arab Emirate (UAE)April 2015 - September 2015

Etisalat Modernization Project 

Main Responsibilities : 
• Integration Team Leader 
• Technical solution. 
• 3G & 4G RAN Issue troubleshooting 
Integration engineer 
• General technical responsible for the project 
• Do preparation for Method of Procedure for new technical issue 
• Lead 3G NodeB Integration 
• Lead 4G enodeB Integration 
• RNC issue troubleshooting 
• NodeB 3G issue troubleshooting (integration issue, KPI issue) 
• eNodeB 4G issue troubleshooting (integration issue, KPI issue) 
• Write tool (script tool) to create integration scripts quickly, help other team member do the integration task quickly 
• Monitor alarm & KPI for the new 3G/4G node.
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Ericsson Vietnam Company LtdAugust 2014 - March 2015

VIETTEL 3G Expansion Project PO 01/03 

Main Responsibilities: 
• General technical responsible for the project 
• Integration Team Leader 
• Customer interface 
• Technical solution. 
Integration engineer 
• General technical responsible for the project 
• MOP preparation for new customer requirement. 
• ATP prepares 
• HLD & LLD for 30 new RNC8200 
• Software Update/Upgrade 40 RNC from W12B to W14B LEAD 
• Test 89 new 3G feature, LEAD 
• Support deploy security level 3 for all Viettel RNC 
• Troubleshooting, LEAD 
• Write tool (tracing tool), help other team member do the tracing quickly during the testing time with customer.
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Ericsson Vietnam Company LtdMay 2012 - August 2014

VMS SLA Project 
Main Responsibilities:
CNS engineer (dedicated Engineer for customer support project)
WRAN CSR handling, Emergency handling.

I. Support handling all WRAN CSR (include emergency CSR) from VMS customer with activity as below: 
 + Scope: Daily support for 14 RNC3820 & 2100NodeB 3000+6000 for VMS 
• Lead migration active for RNC to new MSS/SGSN 
• Lead migration IUCS from ATM to IP 
• Lead migration RNC 3820 to MSC Pool 
• Troubleshooting HS Cell change between Ericsson RNC & NSN RNC 
• Lead configure Iurlink to NSN RNC 
• Lead test EMLPP feature (QoS for Voice & Data) for RNC 
• Trouble shooting when upgrade fail for 1500 nodeBs from P7.1.4-78 to P7.1.4.3 
• WRAN Emergency handling (24/7) (lost traffic/lost OAM…) 
• Support emergency CSR as firstline support for BKH 
• Support troubleshooting on low KPI (PS/CS/IRAT) issue on RNC 
• Troubleshooting NodeB issue 
• Trouble shooting when upgrade RNC & NodeB from P7 to W12B (decrease KPI issue, upgrade failt, process restart after upgrade...) 
• Lead change IUCS-UP from ATM to IP 
II. Do trial Smart laptop for nodeB (RBS3000&RBS6000) integration automatically for VNP & VMS.
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Ericsson Vietnam Company LtdMarch 2014 - May 2014

VNM 3G Trial 

Main Responsibilities: 
Integration engineer
• Integration & commissioning 1 EVO RNC 8200, SW W13A for VNM network 
• Configuration (create northbound script with CCR tool, create nodeB test script, radio network parameter base line script) 
• Commissioning (Backup, power test, upgrade SW for RNC, load NB & SB script, license loading, define nodeB test (1 nodeB for test PSI feature, 1 nodeB for test 42MB feature) 
• Integration (make sure connection from RNC to MSS/MGW/SGSN/OSS/nodeB up) 
• Acceptant test with customer (HW acceptant, SW acceptant)
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Ericsson Vietnam Company LtdMarch 2012 - May 2012

Project VNP-C2-1111 2G3G Exp_BSC RNC 
Main Responsibilities: 
• Lead RNC start up for 12 W12A RNC 3820 R1.1. 
• Configuration (create northbound script with CCR tool, create nodeB test script, radio network parameter base line script) 
• Commissioning (Backup, power test, upgrade/update SW for RNC, load NB & SB script, license loading, define nodeB test) 
• Integration (verify connection to MSS/MGW/SGSN/OSS/nodeB test) 
• Acceptant test with customer (HW acceptant, SW acceptant) 
• Prepare handover document to customer support
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Ericsson Vietnam Company LtdOctober 2011 - March 2012

VMS SLA Project 
I. Main Responsibilities: 
• CNS engineer (dedicated Engineer for customer support project) 
• Scope: Daily support for 14 RNC3820 & 2100 NodeB (3000/6000) for VMS 
• WRAN CSR handling, Emergency handling.
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LG Ericsson - Seoul of KoreaJuly 2011 - October 2011

Main Responsibilities:

0. RNC start up for W11A 

1. Support customer for activity loading DT: + Verify problem and troubleshooting after finished this activity. 

2. O&M support + Loading DT, check connect from RNC-SGSN, RNC-MSC, RNC-RNC + Collect alarm RNC-nodeB, healthcheck RNC, healthcheck nodeB + Trouble shooting alarm in RNC,nodeb. + Support customer and Acceptant test guy for activity testing RNC. 

3. RNC/NodeB software update/upgrade 

4. RNC start up, integration with Core and OSS 

5. Migration Iurlink/Iu_PS link from ATM to IP 

6. RNC troubleshooting for hot case 

7. Rehoming RBSs to new RNC
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Ericsson Vietnam Company LtdApril 2011 - July 2011

VTL 3G PO7.8 project with RNC 3820 W10B 

Role: 
• Integration engineer 

Main Responsibilities: 
• RNC Test and Commissioning 
• Create script using CCR form 
• Loading script (north bound & south bound) 
• SW upgrade for RNC 
• Doing Feature test 
• Doing ATP
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Ericsson Vietnam Company LtdMay 2010 - April 2011

Role: 
• CNS role for project MUSEA VN VTL SLA 2010
Main Responsibilities: 
RNC and NodeBs support engineer: 
• Provide/prepare technical document to support RNC, NodeB. 
• Directly handling troubleshooting tasks 
• Handling all WRAN CSRs for Viettel 3G network (35 RNCs & 6000 NodeBs) (No. CSRs up to Apr-2011 ~ 70). 
• Involve in CSR related to multivendor (NSN, ZTE, Huawei) issue of Viettel WRAN network. 
• Handle RRUW issue, UE can’t not make call, strong influent to Viettel 3G network (influent to more than 200 nodeBs) 
• Doing upgrading task for RNC, NodeB by OSS or Moshell/Amos. 
• Have experience on RNC features test issue. 
• Handle Emergency CSR case for RNC. 
• Work on license management for Viettel 3G network. (Create license files for RNC/nodeB, Swap license for nodeB by ELIS) 
• Main technical contact with GSDC WRAN for local support on WRAN in Viettel Network
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Ericsson Vietnam Company LtdNovember 2009 - May 2010

Role: 
• RNC/Node-B Integration Engineer for project MUSEA_VN_VNP WCDMA 3G 

Main Responsibilities: 
• Doing integration task for RNC and NodeB (working on North bound and south bound) 
• SW upgrade for RNC and NodeB 
• Doing ATP test 
• Doing O&M

My stack

WCDMA, UNIX, Ubuntu, Troubleshooting, Telnet, Sun Solaris, SSH, SharePoint, SGSN, SFTP, Python, Perl, Microsoft SharePoint, LTE, Linux, FTP, Cygwin, Confluence, Bash