Resume - Mr. Rex Lai

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Resume Title:

Mr. Rex Lai

Contact Information

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Work Experience

Experience level:

5-10 years

Profile/Cover Letter:

RESUME

Personal Particulars

Name: Rex, Lai (male)
Year/Place of Birth: 1975 in Hong Kong
Telephone No.: +852 92798550 (mobile)
E-mail address: eerex2@yahoo.com.hk

Education

1998 - 2000 Master of Philosophy (research-based) in
Electrical & Electronic Engineering
(Graduate Grade Average: A-, 10.20 of 12.00)
Hong Kong University of Science and Technology

1994 - 1997 Bachelor in Electronic Engineering
(Second Upper Class Honors, Division I)
Hong Kong University of Science and Technology
hereafter, “HKUST”

1987 - 1994 Secondary Education: St. Louis School, Hong Kong

Work Experience

2006 – present PCCW Mobile (the largest telecom operator in Hong Kong)
Engineer of Trial, Pilot Test

2001 – 2004 Nokia (H.K.) Limited, Hong Kong
NOKIA NETWORKS
Network Planning Engineer (Network Performance Engineer)

1998 –2000 HKUST
Tutor in undergraduate courses:
(a) Information Theory & Error-Control Coding
(b) Signal & Systems
(c) Microprocessor Lab.
(a part-time duty to obtain studentship to support full time master study: assisted professors in grading, preparing teaching materials & gave tutorial lessons to undergraduate students)

1997 – 1998 HONGKONG TELECOM CSL
Assistant Engineer
Radio Planning, Mobile Networks

Projects Involved

(a) 2006 – present (in PCCW Mobile)
1-Radio planning of DVBH/Qualcomm MediaFLO mobile TV technology
Test OFDM radio performance:
Study effects of ( 2,4,8k mode, QPSK/16QAM, guard time, error code rate ) on ( cell coverage, C/N, multi-paths, vehicle speed, frame error rate, video quality )
Propagation model tuning ( simulation & field measurement )

2-Pilot test & evaluation of IP-based 2G/3G basestations (Abis & IuB interface over IP network)

3-Attended Qualcomm HSDPA Training

4-Benchmarking radio network services: study & evaluate algorithms for wireless services benchmark (e.g. video streaming, speech/video telephony) in the scope of human perceptions, mean opinion score etc.:
Speech: ITU P862.2 PESQ.2 speech MOS, ITU P800 experiment method,
Video streaming/telephony: ITU-R BT500-11 experiment method, VQuad algorithm to measure blockiness, blurriness, jerkiness, etc., Lip Sync.

(b) 2001 – 2004 (in Nokia)
1-GSM swap project in Charlotte, North Carolina, US

2-Prepared WCDMA network planning guideline in Atlanta, Georgia, US

3-WCDMA radio capacity test & analysis for Vodafone in Hiroshima, Japan

4-WCDMA radio planning: radio performance study and optimization by a Nokia static simulator (Matlab-based NPSW) for Hutchison (HK) Ltd 3G network

5-WCDMA radio planning: radio parameters investigation by a Nokia dynamic simulator (C++ based Wallu) for Hutchison (HK) Ltd. 3G network

6-Delivered a training using a dynamic simulator to study WCDMA radio system performance in Beijing (e.g. Radio, L1 performance, effect of radio parameters, radio-related algorithms)

7-Radio propagation model tuning for CSL (HK) using ray-tracing (Matlab, Wallman, Propman)

8-Attended Nokia WCDMA Radio Specialist Training Courses (WRST Level 1-4)
(detail study of WCDMA/HSDPA radio system, L1-L3 etc.)

9-WCDMA trial, field test & troubleshooting (IuB, Uu, radio interface with Nethawk & NEMO) for Hutchison HK

10-China Telecom & CMCC WCDMA trial & dimensioning

11-PHS-WCDMA Interference study for Beijing CNG

12-GPRS/EDGE PoC (push to talk over cellular) capacity dimensioning for New World Mobility(HK)

13-GSM/GPRS radio optimization for CMCC in different China cities

14-Benchmarking & troubleshooting TETRA network

(c) 1997 – 1998 (in HongKong Telecom)
1-Integration of RF equipment for the merging of Hongkong Telecom & Pacific Link
2-Solution finding of the problem of GSM/D-AMPS RF interference

Academics & Publications
1-Assisted senior to post-process & prepare figures about capacity / noise rise analysis in section 12.4 of the book:
“WCDMA for UMTS: Radio Access for Third Generation Mobile Communications (Third Edition)” published by John Wiley
(based on the data collected from the Nokia WCDMA infrastructure of Vodafone’s network in Hiroshima, Japan)

2-Publication of “Analysis of Packet Reservation Multiple Access for Data Transmission”, Ka-Chung Lai, Xi-Ren Cao, GLOBECOM 2001
Skills Involved: C/Matlab Programming for Radio System Simulation, Mathematical Analysis of Radio System, Markov Equilibrium Point Analysis

3-Publication of Master Thesis “On PRMA for Wireless LAN”, HKUST, 1998-2000 Thesis supervisor: Prof. Xi-Ren Cao

4-HKUST Research Travel Grant to IEEE conference “GLOBECOM 2001” for conference paper presentation in San Antonio, Texas, US 2001

5-Postgraduate Studentship, HKUST 1998, 1999, 2000

6-Undergraduate Dean’s List Award, HKUST 1995

Language & Computer Skills
Languages: Fluent in English, Chinese/Mandarin
Computer skills: Mapinfo, Nemo TOM, TEMS, Nethawk, C++, Matlab


Most Recent Employer:	Cascade PCCW Mobile
Job Title:	Engineer (N04)
Start Month/Year:	04/2006
End Month/Year:	Current
City:	Not Specified
Country:	Hong Kong
Description:	1-Radio planning of DVBH/Qualcomm MediaFLO mobile TV technology Test OFDM radio performance: Study effects of ( 2,4,8k mode, QPSK/16QAM, guard time, error code rate ) on ( cell coverage, C/N, multi-paths, vehicle speed, frame error rate, video quality ) Propagation model tuning ( simulation & field measurement ) 2-Pilot test & evaluation of IP-based 2G/3G basestations (Abis & IuB interface over IP network) 3-Attended Qualcomm HSDPA Training 4-Benchmarking radio network services: study & evaluate algorithms for wireless services benchmark (e.g. video streaming, speech/video telephony) in the scope of human perceptions, mean opinion score etc.: Speech: ITU P862.2 PESQ.2 speech MOS, ITU P800 experiment method, Video streaming/telephony: ITU-R BT500-11 experiment method, VQuad algorithm to measure blockiness, blurriness, jerkiness, etc., Lip Sync.

Most Recent Employer:	Nokia
Job Title:	Network Performance Engineer
Start Month/Year:	03/2001
End Month/Year:	08/2004
City:	Not Specified
Country:	Hong Kong
Description:	1-GSM swap project in Charlotte, North Carolina, US 2-Prepared WCDMA network planning guideline in Atlanta, Georgia, US 3-WCDMA radio capacity test & analysis for Vodafone in Hiroshima, Japan 4-WCDMA radio planning: radio performance study and optimization by a Nokia static simulator (Matlab-based NPSW) for Hutchison (HK) Ltd 3G network 5-WCDMA radio planning: radio parameters investigation by a Nokia dynamic simulator (C++ based Wallu) for Hutchison (HK) Ltd. 3G network 6-Delivered a training using a dynamic simulator to study WCDMA radio system performance in Beijing (e.g. Radio, L1 performance, effect of radio parameters, radio-related algorithms) 7-Radio propagation model tuning for CSL (HK) using ray-tracing (Matlab, Wallman, Propman) 8-Attended Nokia WCDMA Radio Specialist Training Courses (WRST Level 1-4) (detail study of WCDMA/HSDPA radio system, L1-L3 etc.) 9-WCDMA trial, field test & troubleshooting (IuB, Uu, radio interface with Nethawk & NEMO) for Hutchison HK 10-China Telecom & CMCC WCDMA trial & dimensioning 11-PHS-WCDMA Interference study for Beijing CNG 12-GPRS/EDGE PoC (push to talk over cellular) capacity dimensioning for New World Mobility(HK) 13-GSM/GPRS radio optimization for CMCC in different China cities 14-Benchmarking & troubleshooting TETRA network

Most Recent Employer:	Hong Kong Telecom CSL
Job Title:	Assistant Engineer
Start Month/Year:	10/1997
End Month/Year:	08/1998
City:	Not Specified
Country:	Hong Kong
Description:	1-Integration of RF equipment for the merging of Hongkong Telecom & Pacific Link 2-Solution finding of the problem of GSM/D-AMPS RF interference

Most Recent Employer:	The Hong Kong University of Science & Technology (not a full-time employment, just a PG studentship subsidy)
Job Title:	Undergraduate Course Tutor
Start Month/Year:	09/1998
End Month/Year:	08/2000
City:	Not Specified
Country:	Hong Kong
Description:	Tutor in undergraduate courses: (a) Information Theory & Error-Control Coding (b) Signal & Systems (c) Microprocessor Lab. (a part-time duty to obtain studentship to support full time master study: assisted professors in grading, preparing teaching materials & gave tutorial lessons to undergraduate students)

Background and Experience


Education Level:	Bachelor's Degree
School Name:	The Hong Kong University of Science & Technology
Major:	Electronic Engineering
City:	Not Specified
Country:	Hong Kong
Graduation Date:	31/08/1997
Description:	Not Specified

Education Level:	Master's Degree
School Name:	The Hong Kong University of Science & Technology
Major:	Electrical & Electronic Engineering (MPhil.)
City:	Not Specified
Country:	Hong Kong
Graduation Date:	08/07/2002
Description:	1-Assisted senior to post-process & prepare figures about capacity / noise rise analysis in section 12.4 of the book: “WCDMA for UMTS: Radio Access for Third Generation Mobile Communications (Third Edition)” published by John Wiley (based on the data collected from the Nokia WCDMA infrastructure of Vodafone’s network in Hiroshima, Japan) 2-Publication of “Analysis of Packet Reservation Multiple Access for Data Transmission”, Ka-Chung Lai, Xi-Ren Cao, GLOBECOM 2001 Skills Involved