1. Bill(Jiliang)Wang
46 Foxton Rd.Markham,ON. L6B 0A9
Tel: 647-997-5927(cell), 647-797-4567 (home)
E-mail: jjllwang@hotmail.com
OBJECTIVE
Pursuing an UMTS/LTE/IMS/VoLTE/VoWiFi Wireless Telecom Network Engineer/Specialist position in
a progressive environment
SUMMARY of QUALIFICATIONS
• Over 7 years experience in Canada Mobile Telecom Companies such as TELUS, Rogers, Bell
• 10 years experience in Nokia-Siemens Mobile Telecommunications Company
• Master’s degree of Engineering in Computer Applications
• CCNA/CCNP(Routing & Switching) Certifications
• Author of text book “Network Optimization of Switching Subsystem” widely used among hundreds
of Telecom clients of Nokia-Siemens Networks
• Over 3 years C/C++ Programming experience
• Strong ability of trouble shooting, case analysis, network performance analysis
• Hard worker, quick learner, can work well independently as well as a team member
PROFESSIONAL EXPERIENCE
• Ericsson GSM/UMTS/LTE Packet Core Network Elements: SGSN/MME/SSR(SGW+PGW)/GGSN
• Ericsson IMS/VOLTE Network Elements:SBG/P-CSCF,S-CSCF,MTAS,IP WORKS (ENUM,EMA)
• CISCO LTE Core Network Elements::MME,SGW/PGW
• NSN UMTS Core Network Elements:MSS(DX200)&MGW,HLR-FE,SGSN&GGSN,Node B
• NSN 3G Wireless Products: RNC, Node B(WCDMA/UMTS),BSC,BTS(GSM&GPRS)
• Huawei 3G Wireless Network production: RNC, Node B
• Protocols: SS7,SIGTRAN,RANAP,CAMEL,H.248,ISUP,SIP/SIP-I,Diameter,GTP-C/v1/v2,AAA
• Mobile telecom network analysis tools: Astellia solution (Linux,Oracle,MySQL),Tektronix
Geoprobe(Iris),Netscout, Brix
• IP-Convergence Network: TCP/IP& UDP/SCTP,OSPF,BGP,HSRP/VRRP,MPLS
• CISCO Routers:2500,2600,7613,CISCO Switches:2950,3550,4948
• Operating system: Linux Red Hat (5.0), Windows 2008 R2, Windows XP,Windows8
WORK HISTORY
Rogers Communication Inc. Jan.2015—July, 2015
User Profile&Packet Core TAC
• Operate and Maintain Rogers GSM/UMTS/LTE PS Network Elements:
SGSN/GGSN/MME/SGW/PGW
• Upgrade software Version of SGSN/GGSN/MME/SGW/PGW
• Troubleshoot UMTS/LTE/IMS Network issues such as KPI failure alarm, Diameter authorization
failure etc. using Tektronix network monitoring tool
TELUS Technology Strategy Mar.2009 –Sept. 2014
UMTS/LTE Wireless Network Engineer
• Troubleshoot a lot of issues(LUP/MOC/MTC/MMC/CSFB,SMS) existing on TELUS UMTS CS
network and Optimized the TELUS UMTS CS network using Astellia solution and Geoprobe
1

2. • Troubleshoot a lot of issues(RUA/PDP session setup/drop etc.) existing on TELUS UMTS PS
network and Optimized the TELUS UMTS PS network using Astellia solition,Geoprobe
• Troubleshoot a lot of issues(TAU/EPS Bearer etc.)existing on TELUS LTE network and Optimized
the TELUS LTE network using Netscout
• Responsible for providing case analysis and solution for issue report from clients and NRC team
• Providing case analysis support for MSO,Engineering team as a key staff of TELUS Tier3 technical
leadship team
• Evaluating and Supporting LAB validation and execution to identify impacts and concerns early
• Keeping monitoring on CS/PS network and Identifing/resolving ongoing network issue ,KPI
abnormalities and guarantee the network health after network elements upgraded
• Implemented SS7 SIGTRAN (SCTP,M3UA) test of UMTS network among MSS,SGSN,HLR-
FE,STP and RNC“” before Telus launched UMTS in 2009
• Administrating Astellia solution and Geoprobe (troubleshooting,topology file update etc.)
Wireless Technology Innovation Center of Bell Mobility Inc., Canada Sept.2008--Mar.2009
UMTS Wireless Network Engineer
• Trained Nokia-Siemens HLR-FE for Bell internal staffs including architecture of HLR-FE, C-NTDB,
HLR-FE configuration in Bell Lab.
• Performed Initialization and creation of Siemens HLR-FE database including Cisco 4948 Switch
VLAN, HSRP, IP Routes, SCTP, M3UA, SCCP and MAP
• Implemented Integrated Test of Nokia MSS(DX200),MGW(IPA2800),Siemens HLR-FE with Nokia-
Siemens RNC, Huawei RNC
• Operated, Maintained Nokia-Siemens MSS(DX200),MGW(IPA2800),Siemens HLR FE
NTG Clarity Networks Inc., Markham, ON. May, 2007-
Dec.2007
Data Analyst
• Analyzed Telecom Network Architecture for Pennsylvania Power Limited Telecommunication
project
• Set up data model for structured voice, data network system
• Implement OC-n Ring, Facility, DS3/DS1 CLR data migration based on NTS Server(Oracle
Database)
• Created and modified NTS/SQL modules that facilitated the transfer of data between customer
based Excel data sheets and an Oracle based NTS Management system.
• Analyzed and diagnosed data modules from customers, Initiatively consulted with customer and
provided issues solving proposal
SIEMENS Mobile Telecommunication Company Ltd., Shanghai, China
1997-2007
Service Engineer 1997-2000
• Implemented on-site commissioning of GSM&GPRS projects for China Mobile, Unicom Operators
• Supervised entire project process from offline test to online service
• Investigated, managed trouble reports, testing, diagnostics, fault isolation
• Operation and Maintenance Voice and Data Network
Technical Support Engineer (TAC2:Technical Assistant Center Level2) 2000-2002
• Tested mobile performance features after system upgrade
• Analyzed cases, provided solutions for field service engineers, customers
• Integrated and Tested mobile application such as WAP, SMS, MMS, Email, Fax/Data etc.
• Modified database and adjusted system parameters
2

3. • Wrote patches-using procedure, switch subsystem upgrade procedure
Network Optimization Engineer 2002-
2003
• Analyzed KPI of GSM&GPRS Network
• Evaluated network performance (e.g Handover, Call drop, QOS, Traffic Load, Load balance etc.)
• Provided solution of improving KPI
• Authored text book “Network Optimization of Switching Subsystem” including Case Analysis
(Power Measurements, Traffic Measurements, Radio interference, SS7 Parameters, MSC
database etc.)
Trainer 2003-2007
• Implemented on-site commissioning of SGSN&GGSN/MSC-Server&MGW for UMTS 3G trial
project of WuHan Teleco, China
• Configured, Maintained, VLAN, Routing Database of GGSN based on Cisco 7613 on LAB
Trained clients, internal staffs in:
• “CCS7 Signaling for GSM&GPRS”, ”Core Network Commissioning and OAM”, “Advanced
Database Administration”, UMTS System Introduction and System Architecture”, ”UMTS CN OAM
(CS&PS)” and “UMTS CN Signaling”, “SIP Introduction”
• “Cisco Router & Switch OAM”, Siemens R4 Core Network Products: ”SGSN/GGSN”,”MSC-
Server/MGW”, Siemens 3GPP products such as WiMAX ,HSDPA
• Nokia UMTS 3G CS Switching Subsystem (MSS,MGW) based on DX200,IPA2800
Motorola Inc., China 1996-
1997
Field Service Engineer
• WMG (Motorola Paging system) installation, which included software/hardware implementation,
installation, conducted test and provided on-site maintenance service based on Solaris
• Integrated with variant software, hardware systems
• Upgraded software programs to enhance product efficiency
Lucent Technologies Equipment Co. Ltd., China
1995-1996
Develop Engineer
• Developed communications software of SLC-240 using BORLAND C++ 3.1 and 4.0
• Localized SLC-1000 under environment of Solaris 2.4 for X86
CONTEC Electric Technology Corp, Shanghai, China 1993-
1995
Develop Engineer
• Developed FIFO ASIC chip using VIEWCAD application software
• Designed interface schematic for FFT ASIC chip using ORCAD application
• Developed driver software for PULSE LOGGER board using Microsoft C 7.00/MASM 6.00
Fisheries University, Shanghai, China 1986-1990
Assistant Professor
• Taught computer languages C, C++, PASCAL, FORTRAN, BASIC
EDUCATION
Xincon Technology College, Canada; Cisco CCNA/CCNP Certifications Nov, 2007-May,
3

4. 2008
Siemens Training Institute, Germany; Communications Networks System Specialist May-
Nov,1998
Tong Ji University, Shanghai, China; Master Degree in Computer Applications 1990-1993
Shanghai Tie Dao University, Shanghai, China; Bachelor Degree in Computer Engineering 1982-
1986
Reference Available
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