Sanjeev Anand S is seeking a challenging position as a software professional where he can utilize his skills and experience. He has over 4 years of experience as a senior test engineer testing telecom software. His skills include testing protocols like GTPV1, GTPV2, RANAP, and TCAP. He is proficient in TTCN3, Robot Framework, and other testing tools. He has experience testing features for the SGSN network element, including packet core testing and lawful interception. His past projects include testing new features for Nokia Siemens' SGSN and Telefonica's lawful interception networks. He is looking to apply his domain knowledge of 2G, 3G, 4
Experienced Test Lead Engineer with a demonstrated history of working in the Embedded Systems .Strong engineering professional skilled in Set Top Box / TV.
The success of Skype has inspired a generation of peer-to-peer-based solutions for satisfactory real-time multimedia services over the Internet. However, fundamental questions, such as whether VoIP services like Skype are good enough in terms of user satisfaction, have not been formally addressed. One of the major challenges lies in the lack of an easily accessible and objective index to quantify the degree of user satisfaction.
In this work, we propose a model, geared to Skype, but generalizable to other VoIP services, to quantify VoIP user satisfaction based on a rigorous analysis of the call duration from actual Skype traces. The User Satisfaction Index (USI) derived from the model is unique in that 1) it is composed by objective source- and network-level metrics, such as the bit rate, bit rate jitter, and round-trip time, 2) unlike speech quality measures based on voice signals, such as the PESQ model standardized by ITU-T, the metrics are easily accessible and computable for real-time adaptation, and 3) the model development only requires network measurements, i.e., no user surveys or voice signals are necessary. Our model is validated by an independent set of metrics that quantifies the degree of user interaction from the actual traces.
Autonomous driving requires safety considerations and the need of “fail operational” requires redundancy. In the networking portion of a car, this may mean separate networks, possibly of different technologies. Or it could mean a network topology and technology that supports scalable redundancy, like Ethernet TSN.
This presentation focuses on IEEE 802.1CB-2017, which is the TSN standard that supports data redundancy through the network. Various network topologies are examined. The relative costs of adding TSN redundancy for these topologies (including some, or all of, the end-stations/ECUs & bridges) are examined for various bandwidth utilizations, along with the expected packet loss. Each topology and bandwidth will be modeled under various bit-rate error values with the results discussed.
This presentation aims at providing a clear understanding of the TSN standards that support redundancy, and an understanding of the cost/benefit tradeoffs so proper engineering decisions can be made and proper expectations set.
AQuA Voice Quality Testing. Competitive Alternative For Pesq (P 862)Sevana Oü
AQuA (Audio Quality Analyzer) is a competitive alternative for existing quality testing models.
AQuA is available for all platforms (32bit and 64bit machines, Windows, Linux, MAC OS)
AQuA has a competitive computational performance
AQuA does not have annual royalty fee
AQuA has the most attractive pricing on the market
AQuA is already used in VoIP PBXs and other systems
Experienced Test Lead Engineer with a demonstrated history of working in the Embedded Systems .Strong engineering professional skilled in Set Top Box / TV.
The success of Skype has inspired a generation of peer-to-peer-based solutions for satisfactory real-time multimedia services over the Internet. However, fundamental questions, such as whether VoIP services like Skype are good enough in terms of user satisfaction, have not been formally addressed. One of the major challenges lies in the lack of an easily accessible and objective index to quantify the degree of user satisfaction.
In this work, we propose a model, geared to Skype, but generalizable to other VoIP services, to quantify VoIP user satisfaction based on a rigorous analysis of the call duration from actual Skype traces. The User Satisfaction Index (USI) derived from the model is unique in that 1) it is composed by objective source- and network-level metrics, such as the bit rate, bit rate jitter, and round-trip time, 2) unlike speech quality measures based on voice signals, such as the PESQ model standardized by ITU-T, the metrics are easily accessible and computable for real-time adaptation, and 3) the model development only requires network measurements, i.e., no user surveys or voice signals are necessary. Our model is validated by an independent set of metrics that quantifies the degree of user interaction from the actual traces.
Autonomous driving requires safety considerations and the need of “fail operational” requires redundancy. In the networking portion of a car, this may mean separate networks, possibly of different technologies. Or it could mean a network topology and technology that supports scalable redundancy, like Ethernet TSN.
This presentation focuses on IEEE 802.1CB-2017, which is the TSN standard that supports data redundancy through the network. Various network topologies are examined. The relative costs of adding TSN redundancy for these topologies (including some, or all of, the end-stations/ECUs & bridges) are examined for various bandwidth utilizations, along with the expected packet loss. Each topology and bandwidth will be modeled under various bit-rate error values with the results discussed.
This presentation aims at providing a clear understanding of the TSN standards that support redundancy, and an understanding of the cost/benefit tradeoffs so proper engineering decisions can be made and proper expectations set.
AQuA Voice Quality Testing. Competitive Alternative For Pesq (P 862)Sevana Oü
AQuA (Audio Quality Analyzer) is a competitive alternative for existing quality testing models.
AQuA is available for all platforms (32bit and 64bit machines, Windows, Linux, MAC OS)
AQuA has a competitive computational performance
AQuA does not have annual royalty fee
AQuA has the most attractive pricing on the market
AQuA is already used in VoIP PBXs and other systems
Professional Summary:
6 years of experience in Telecom industry.
Excellent communication and interpersonal skills. Highly motivated with strong commitment to quality and customer service
Specialties: Telecom Testing,,SS7/SIGTRAN,Diameter/PCRF,GSM/GPRS,CAMEL(IN),Automation(Shell & AWK), Nagios tool,Linux,
1. Sanjeev Anand S
Mobile : +91 9686711788 , +4915166494655
Email : sanjeev.sanjshan@gmail.com
Address : C/O Vijay Ramasamy, Werner-Friedmann Bogen 20 , Munich-
80993, Germany
CAREER OBJECTIVE: To secure a challenging position where I can effectively utilise my skills as a software
professional and offers professional growth while being resourceful, innovate and flexible;
interested in application development/design.
SOFTWARE SKILLS:
Domain Knowledge GSM (2G), GPRS (2.5G), UMTS (3G), LTE Inter-working(4G), Lawful Interception
Tools and Utilities Challenger(FTP tool),HIT(testing tool),TTCN3 Framework(Testing environment),EMIL
(Monitoring and analysing logs), Wireshark Analyser, DMXSEE GUI(image building
tool),Eclipse(coding),Robot Framework(Automation), WIRESHARK (Message analyser) ,
UTIMACO
Operating System Windows, Linux
Technical Skills TESTING- TTCN3 , ROBOT Framework , SYBORG Interception center
PROFESSIONAL SUMMARY:
• 4 years and 11 months of IT Experience, testing Experience in TTCN3 and Telecom Domain
• Worked as a Senior Test Engineer at Wipro Technologies, Hyderabad from 15th November, 2010 to 22-Jan,
2015 (Worked from Bangalore for same project in Hyderabad)
• Working as a Senior Test Engineer at Wipro Technologies at a client’s location(One of the leading telecom
operator , Munich) from Jan 23,2015 till date
• Involved in Manual and Automation testing - Packet core and Evolved Packet core Testing - Verification and
validation of SGSN functionalities (3GPP Rel 8 Features). ..
• Good Knowledge on SGSN and its interactions with all interfaces(Gb, Iu,Gn/Gp, Gr, S3, S4, S16, S6d)
• Good Knowledge on RANAP, TCAP, GTPV1, GTPV2, BSSGP etc. protocols
• Working Experience with RNC, HLR, SGSN, BSC, GGSN, SGW, PGW, MME, HSS components.
• Working experience in Automation testing, Functional testing, Sanity testing, Regression testing and AT & T
testing
• Good understanding of 3GPP Specifications.
• Working experience in Agile process
• Working experience in TTCN3, Automating Robot Framework
• Having excellent debugging and troubleshooting skills.
• Good ability in prioritizing, organizing and handling multiple tasks.
• Trained few new team members in Team on TTCN3 automation
• Involved in Lawful interception – Regression, acceptance and functional testing
WORK HISTORY:
I am working with Wipro Technologies, in the Wireless Technologies area under Telecom Domain. I am a part of
feature team and my role is to test the feature/functionality added to the SGSN, also do some coding and unit
testing. I have fair understanding of SGSN (real network element) and the interfaces through which it communicates
with other network elements.
2. PROFESSIONAL EXPERIENCE:
PROJECT NSN-SGSN
CLIENT Nokia Siemens Networks, Finland
DESCRIPTION SGSN (serving GPRS support node) is a real network element in core network through which
packet switched calls takes place from mobile station (MS). Whenever a MS wants to send data to
external world Packet Data Networks (ex. Uploading data, etc.) or it receives data from outside
network; it has to go via SGSN to start the packet data session.
This project includes new feature development and adding new functionality to the existing features
under SGSN. SGSN is the real network element whereas HLR, MS, SGW, PGW, MME, GGSN are
emulated components. For any exchange of message between MS and SGSN, SGSN has to
communicate with at least one of the above mentioned components.
These emulators come into existence when we run TTCN3 test cases and these components get
stopped automatically after execution of case.
The code for new features as well as existing features is developed in TNSDL(Nokia
Proprietary language similar to C). The feature team to which I belong has implemented
successfully following features:
1. PSHO - To test the functionality of S4-SGSN when subscriber is moving to S4-SGSN from MME
during Packet switched Handover.
2. EPS Bearer Mapping – To test the functionality of the SGSN when Bearers are activated. It has
to discard the dedicated bearers coming to S4-SGSN configured as Gn/Gp or S4-SGSN
connected to PGW using Gn from MME during Packet switched Handover or Routing Area
Update scenarios When the Parameter is set to 1.
3. IMS APN - To test the functionality of S4-SGSN when subscriber is moving to S4-SGSN from
MME during Handover or RAU , where DNS Query for SGW fails. Upon this situation, S4-SGSN
should route PDPs over GN Interface towards PGW.
4. Interception Timestamp - To test the functionality of S4-SGSN towards LIG (Lawful
Interception Browser and Lawful Interception Controller) to include the Timestamp value in
micro seconds depending on the parameter configured.
5. Dual Stack S4 - If requested PDP type is allowed by subscription and if the requested PDP
type is IPv4v6, the SGSN sets the PDP type as requested, if the SGW supports PDP type IPv4v6
(SGSN will be have an 'on/off' switch for the feature, i.e. either all nodes support DS, or none).
Otherwise, the SGSN shall set the PDP type to IPv4 or IPv6 where the selection between IPv4
and IPv6 is based on the result of the check.
6. Dual Stack Gn - If the requested PDP type is allowed by subscription and if the requested
PDP type is IPv4v6, the SGSN sets the PDP type as requested, if the GGSN supports PDP type
IPv4v6 (SGSN will be have an 'on/off' switch for the feature, i.e. either all nodes support DS, or
none). Otherwise, the SGSN shall set the PDP type to IPv4 or IPv6 where the selection between
IPv4 and IPv6 is based on the result of the check.
7. MM States - To test the functionality of SGSN when the ready timer expires and there are
active PDP contexts for that subscriber, SGSN sends Release Access Bearers Request message to
the S-GW to release resources allocated for it.
3. ROLE As part of feature team, I was mainly involved in functional testing as well as development for
some functionality when required. For functional testing, I had to login to HIT to get connected
to the SGSN which is the SUT (System under test). I have worked on GPRS emulators as well as
TTCN3 framework and have fair understanding of how it works with SGSN. Also I have done
automation testing as part of feature development with ROBOT Framework. After functional
testing the cases have to be uploaded in Quality Center. While testing, I was responsible for
raising bug in Pronto tool, had to keep track of the pronto and closing the pronto after retesting
it. I did coding for a new feature as well as unit testing. After completion of feature, I demo the
developed feature’s functionality to the customer in Sprint Review meeting via WebEx session. I
have been part of three major releases for SGSN - SG8 CD2 , SG8 CD3 and SG8 CD3.1.
I was the only tester in our project to be involved in for AT & T testing for SG8 CD3 and CD3.1,
after it was delivered to them for upgrading.
Since agile methodology is followed, I am truly agile as I was involved in testing and
development activities.
TOOLS GPRS emulators, TTCN3 Framework, Vi editor, Wire shark Analyser, Emil, Winscp, Winsofia, HIT,
ROBOT Framework, Challenger, Eclipse, Quality Centre
PROJECT O2-SONDES NETWORKS
CLIENT Telefonica , Germany
DESCRIPTION Lawful interception (LI) is obtaining communications network data pursuant to lawful authority
for the purpose of analysis or evidence. Such data generally consist of signalling ornetwork
management information or, in fewer instances, the content of the communications. If the data
are not obtained in real-time, the activity is referred to as access to retained data (RD).
ROLE As a part of LI testing team, I am responsible for test configuration, Test case designing, Test
case execution and evaluation of test results based on IRIs and CCs from various network
elements like MSS, SGSN, MME, S-GW/P-GW, SBC, VMS and LSDP.
TOOLS UTIMACO, WIRESHAK Analyser, SYBORG Interception center, ADMINSY GUI, HAGUI.
HIGHLIGHTS:
• Worked on the testing of SGSN, S4-SGSN, LI(Lawful Interception)
• Good Knowledge on SGSN and its interactions with all interfaceS(Gb, Iu, Gn, Gr,S3,S16, S4).
• Good Knowledge on Testing Process
• Quick to adapt to new Technologies.
CERTIFICATIONS AND TRAININGS COMPLETED IN WIPRO:
• Completed trainings for UNIX,C and C++ in early stage of my career
ACHIEVEMENTS:
• Received Feather in my cap award for excellent contribution in NSN Project.
• Received “Best Rookie of the year – Make your Own “ award
4. • Awarded with Maverick award(GMT EXCELLENCE AWARDS : Q1-2012-13 )
• Received “Shining star of the month” award – April 2013
ACADEMIC DETAILS:
Exam
Institution Board/ University
Year of
Passing
percentage
10th
Sri Vijay Vidhyalaya
Hr. Sec. Matric School,
Dharmapuri
Matric 2004 87.36
12th
Sri Vijay Vidhyalaya
Hr. Sec. Matric School,
Dharmapuri
State Board 2006 92.58
B.E. (CSE)
Hindustan College of
Engineering , Padur ,
Chennai
Anna University 2010 78.55
PERSONALITY TRAITS:
Strengths: creativity, leadership and team work.
Hobbies: Painting, Dancing.
Examples:
• Won second place in group dance competition in Rotafest *2002, 2001-2002
• Won the school level inter-house cricket tournament, 2001-2002
• Won the school level inter-house foot ball tournament, 2002-2003
• Won second place in the inter-house cricket tournament , 2003-2004
• Won the school level inter-house volley ball tournament, 2003-2004
• Winning team captain for volley ball in 2004-05
• Attended the NSS camp at Malaiyur village in Dharmapuri district during 2004-05
• Participated actively in various drawing competitions
• One of the committee members in organizing the hostel day function , Crossroads 2009
• Team member of NSN-SGSN Cricket team under GMT-Telecom Domain , 2011-12
PERSONAL DETAILS:
Name Sanjeev Anand S
Father’s Name Mr.S. Shanmugam
Date of Birth 19th
Apr 1989
Nationality Indian
Marital Status Single
E-mail Address Sanjeev.sanjshan@gmail.com
Languages known English, Tamil , Hindi(Read)
Permanent Address 167-A, Sangeetha illam, 6th
cross, Gandhi nagar , SV Road ,
Dharmapuri- 636702
Contact No. +4915166494655
5. DECLARATION:
I here by declare that all the information furnished above are true and correct to the best of my knowledge
and belief..
Sanjeev Anand S