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Resume Title:

gsm gprs umts mobile handset development

Contact Information

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Work Experience

Experience level:

5-10 years

Profile/Cover Letter:

AMAR R

amar_r@aol.in
+919886301855

SYNOPSIS:

7 years of work experience in design/development/testing of gsm/gprs/umts mobile handset protocol stack/applications/layer 1 controller.

Domain:
GSM/GPRS/UMTS, CDMA IS-95 A

Programming languages:
C, C++

Scripting Languages:
Tcl/Tk, Perl

Platform:
Linux RTT, Skyworks Platform, TTPCOM, and CCWW

Protocol Stacks:
GSM/UMTS Call Control, Mobility Management, Session Management
GPRS – LLC, SNDCP, GMM, RLC
GSM/GPRS – Layer 1 Controller

Software Version Control Management:
Perforce, Clearcase, SVN

Real Time Equipments:
Anite, Agilent 8960, CRTU-G, ARM7, ARM9

Test Tools:
TCL/TK, Perl Based proprietary

Applications:
Call/Phonebook/Call Register/Sim/Bluetooth

Others:
Good protocol stack/L1 controller knowledge, Good at debugging, issue resolution, Good at porting

Awards:
Best individual and team performer for quarter Jan-March 2004 at Skyworks for contribution to GSM850 layer 1 development

PROJECT DETAILS:

1. Development of GSM/GPRS Layer 1 controller

Company: Digibee Microsystems Private Limited

Period: Aug 2007 onwards

Role: Working as a tech lead.
Tested, optimized the generic layer 1 controller code. Ported the protocol stack/layer 1 controller code to Windows and ARM. Involved in testing/issue resolution of all the protocol stack layers. Currently working on complete bluetooth implementation. Also working on GSM Timer Controller Unit that will be used to control precise slot wise timing to the RF and also for Tx and Rx of data (based on DigRF interface).

2. Development of POSIX compliant interface

Company: SYMBIAN India Private Limited
Period: April 2006 – Aug 2006
Role: Team member.
Involved in understanding Symbian OS. Porting the POSIX specification code on Symbian OS.

3. Development of Base models for GSM/GPRS phones

Company: LG Soft India Private Limited
Period: July 2004 – April 2006
Role:
As a tech lead handling gsm/gprs protocol stack/Bluetooth/SIM/Call Register. Handled a team of 8 members. Worked on base model/CA development for various models such as LG C3400, G1600, F2300, F2400, S5200, P7200 and M1600. Worked onsite at Seoul for 6 months. Have a year and a half experience of working on TTPCOM platform.

4. GSM850 layer 1 controller development

Company: SKYWORKS India
Period: July 2003 – June 2004

Role: Owner, Layer 1 controller.
Involved in understanding the gsm/gprs layer 1 controller software. Understanding the Layer 1 controller-DSP interface, layer 1 controller – Integrated Analog IC interface, layer 1 controller – Direct Conversion Transceiver Interface.
Implemented the complete GSM850 software for Layer 1 controller, which involved movement of DCR tunestore from DSP to layer 1 controller, RF calibration for GSM850 band, L1-DSP integration, and GSM850 software changes.
Performed the first basic call on GSM850 band. Passed layer 2 integration test cases over CMU200 and CRT-UG. Also involved in field-testing of GSM850 band at various areas in USA.

5. NAS Modules development

Company: SASKEN communication technologies Limited

Period: May 2001 – July 2003
Role: Team member/Module Owner for CC/LLC.
Involved in coding/testing/optimization of GSM/UMTS call control, Mobility Management, Call related supplementary services. Also involved in re-design of SNDCP. Coded supplementary services such as AoC, Multi-Party, Call Hold, and UUS. Worked on layer 4/NAS integration.

6. Maintenance of BTS controller software

Company: SASKEN/NORTEL Networks

Period: Nov 2000 – April 2001

Role: Maintenance of BTS Controller (NMS). Understood the air interface for IS-95 including Channel coding, Power Control, Correlation, and CDMA Physical Channels.

ACADEMICS:

Degree College/ Year of Passing/Percentage
BE (ELECTRONICS & TELECOMMUNICATIONS) REC Nagpur India, 2000, 67 %
XII Nagpur Board India, 1996, 87.6 %
X Nagpur Board India, 1994, 86.4 %


Most Recent Employer:	Digibee Microsystems Private Ltd
Job Title:	Tech lead gsm/gprs layer 1 controller
Start Month/Year:	08/2006
End Month/Year:	Current
City:	Bangalore
Country:	India
Description:	Tested, optimized the generic layer 1 controller code. Ported the protocol stack/layer 1 controller code to Windows and ARM. Involved in testing/issue resolution of all the protocol stack layers. Currently working on complete bluetooth implementation. Also working on GSM Timer Controller Unit that will be used to control precise slot wise timing to the RF and also for Tx and Rx of data (based on DigRF interface).