S.A.Rahman Technical consultant at Transciever Technologies Ltd Email : syed_rahman97@yahoo.com Mobile : (+91)8125070395.

Madhapur, Hyderabad.

Technical Analyst/Technical Consultant (Cisco Systems) – 5 years of Experience in UMTS/LTE/CDMA –L2/L3 protocols / Platform- Testing, software design and development engineering in wireless technologies. I have a background C/Perl/TTCN-3 development and strong experience in troubleshooting, and testing UMTS/LTE devices under field conditions. Excellent communication and proven leadership skills combined with the ability to work productively within multidisciplinary teams. Summary of Qualifications

Very competent ‘C’ Programmer and tester with Perl/TTCN-3 in developing and L2/L3 pro-tocols.on OS environment like UNIX, CISCO IOS, LINUX. CISCO 7600 , 7200 platforms

3GPP TS 36.331 E-UTRA RRC Protocol specification (Rel-8)  complete implementation of the protocol layer as defined in the 3GPP TS 36.331 EUTRA Radio Resource Control (RRC) Protocol specification for the eNodeB network element. . LTE-Uu Protocol

Strong Understanding S1 and X2 Handover Control Strong Understanding of EPC core part and MME,HSS,SGW,PGW,PCRF

●     Responsible for finding issues in integration of L1 and L2/L3 of eNB stack. ●     Understanding of execution and creation of Automation script.●     Bug reporting and tracking. Finding root cause of issue by going through 3GPP specs and suggesting the expected behaviour.●     Analyzing FAPI log and air interface log (QXDM) .Write and execute release Integration Test plan and Test CasesReview Architecture, Functional and Design Specs and RequirementsFamiliar with software development processResponsible for testing LTE RAN functionalityPerform feature and bug-fix check-in verification by doing basic sanity check of the

software component's functionality as well as end-to-end verification of the overall system func-tionality.

Perform integration testing as per integration test plan to validate basic functionalities of new features in the release

Script development for automationPerform and analyze system stability and performance including capacity requirements.Review Development unit test plans and QA test plansPerform Minimum Performance Testing

Possess expertise in IP Data packet processing Protocol development from problem statement to well-documented functional specifications.TCP-IP/Mobile-IP, Layer 2/Layer 3 .protocols, wireless gateway application software de-velopment onU.E/ GGSN/LTE productsWCDMA, UMTS, LTE/U.E/GGSN-GTP protocols.HSRP/SCTP

Strong Understanding of WIMAX, Broadband Wireless Gateways, Software design, configuration and troubleshooting

at production networks. 3GPP , GPRS technology, GTP protocol, GTP V0/V1/V2.

Upgrading and Configuring the network devices on the customer network. .

Demonstrated proficiency in leading and mentoring individuals to maximize productivity within the organization.

Work Experience

Working as a Technical consultant for Transciever Technologies Hyderabad from Jan 2009 to Till Date

Education Qualifications

Bachelor Of Technology (B.Tech) KBNCE, VTU,Karnataka 2008 61%

Intermediate Board Of Intermediate 2003 76%

SSC Board Of SSC 2001 77%

Technical Expertise

Development Platforms Unix, Linux, CISCO IOS

Languages C , Perl,TTCN-3Technologies Products: Wireless gateways, U.E

Protocols: Layer 3

Tunneling protocols – MIP tunneling. GPRS Tunneling Protocol. RRC

Layer 2 Ethernet Driver RLC

Debugging tools GDB.

Development Tools KEIL, SingleStep On Chip simulators.GNUx Tools, Cygwin.

Version Control Systems Concurrent Versions System (CVS), Clear Case tools.Agilent ,Anite

Achievements

Ranked a rating of “Outstanding” by Transciever Technologies for year 2011 and 12

PROJECT DETAILS

1. RRC(Radio Resource Control) Transciever Technologies

( LTE) Dec 2013 to Till date

Clients ZTE

TechnologiesLTE-RRC/RLC

3GPP TS 36.331 E-UTRA RRC Protocol specification (Rel-8)  complete implementation of the protocol layer as defined in the 3GPP TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol specification for the eNodeB network element. The . LTE-Uu Protocol

Description:RRC connection control:

Establishment/modification/release of RRC connection, including e.g., assignment/ modification of UE identity (C-RNTI), establishment/ modification/ release of SRB1 and SRB2, ac-cess class barring,Initial security activation, i.e., initial configuration of AS integrity protection (SRBs) and AS ciphering (SRBs, DRBs),RRC connection mobility including e.g., intra-frequency and inter-frequency handover, associated security handling, i.e., key/ algorithm change, specifica-tion of RRC context information transferred between network nodes,Establishment/ modification/ release of RBs carrying user data (DRBs),Radio configuration control including e.g., assignment/ modification of ARQ configuration, HARQ configuration, DRX configuration

QoS control including assignment/ modification of semi-persistent scheduling (SPS) configuration information for DL and UL, assignment/ modification of parameters for UL rate con-trol in the UE, i.e., allocation of a priority and a prioritized bit rate (PBR) for each RB

Programming language: CScripting : Perl Platform : Linux

2. Gateway GPRS Support Node Transciever Technologies

October 2013 to Dec 2013

Clients Cisco Sytems, USA

Technologies LTE/GGSN Gateway/GTP protocol.

Cisco Gateway GPRS Support Node forms a core part on 3G networks in proving GPRS packet radio access to GSM users. GTP (GPRS Tunneling Protocol) is the ip based communication protocol between GGSN and its peer’s.

Working on the Machine 2 Machine model support implementation in GGSNGGSN application software will need to support the Network Requested PDP activation procedureWherein, when as message destined to the user is received on GGSN, it need to send Mobile Subscriber activation request and allow the MS to create a session and allow the MS to respond the server request. This Network Initiated PDP(context) creation.

My role here is to implement an FSM model in GGSN application to support all the call flows.

Programming language: CScripting : Perl Platform : CISCO IOS.

3.Home-Agent Gateway device Transciever Technologies

Feb 2012 – OCT 2013

Clients Cisco Systems,USA.

Product/Technologies CISCO Network Gateways, Home-Agent Software development.

Mobile-IP(MIP) routing protocol allows user to un-interruptedly access the destinations servers without changing its IP.MIP users contact HomeAgent (HA) gateway for authorization through a foreign agent.This foreign agent is care-of address for the user, therefore HA establishes a MIP tunnelto foreign agent for all data services.

Worked in the Home-Agent gateway devices feature design and development which includes Layer 3 tunneling support for Mobile-IP GRE/IP and MIP/UDP tunneling

for Mobile IP application running on Home-Agent Gateway.Developed code support

To identify the user and type of tunneling needed in signaling path.

Establish a tunneling interface for every foreign agent, intercept the user data packets, provide GRE/MIP-UDP encapsulation and de-capsulation apply rules and accounting for the user traffic.

Programming language : CScripting :Perl/TTCN-3Platform: : CISCO IOS.

Roles and Responsibilities: Design and development as per the specifications

4.Radio Resource Control (Layer 3) Radio Bearer Release Transciever Technologies

Dec2009 to Jan2012

Client Samsung .

Products/Technologies UMTS-U.E

This procedure releases one or more RB’s. This procedure can be done in two different ways: Synchronized and Unsynchronized. The Unsynchronized procedure is simpler because the old and new configurations can coexist and therefore the change does not have to take place simultaneously in the UE and in the UTRAN. The Synchronized procedure uses time parameter to ensure synchronizationProgramming language: C

Scripting : PerlPlatform : LINUX

Roles and Responsibilities: Study of 3GPP TS 25.331 (Rel’99, Rel’5), TS 34.123 and writing the test Specifications.

Identification and review of Test Cases and Test execution. Documenting test reports, defect reports, and bug reports. Documentation for High Level Design and Low Level Design. Good knowledge and practice of Verification process, test methodologies and Quality

initiatives. Developing the codes using C Language on Linux OS.

5. Radio Resource Control (Layer 3) RRC Connection Establishment Transciever Technologies

Jan 2009 to Dec 2009

Clients United Telecoms, Bangalore.

Technologies

RRC Connection Establishment procedures are used to switch UE from Idle mode to RRC Connected mode. For this, the initiation can be done either by the UE (Call Originating) or by the Network (Terminated Call).

The RRC Connection Establishment is initiated by UE-RRC and that will be terminated by UTRAN-RRC. The UTRAN responds with RRC Connection Setup message. Once the UE RRC receives RRC Connection Setup message with the same UE identities that are transmitted on RRC Connection Request message, UE-RRC will send RRC Connection Setup Complete message otherwise UE RRC retransmits the RRC Connection Request message. If no resources are available at that instant UTRAN sends RRC Connection Reject message.

Programming Languages : C, PerlPlatform: Linux

Personal Details

Date Of Birth 02-Sep-1985

Marital Status SinglePermanent Address D.no-2-86,Jalal Street, Yellamanchili

Visakapatnam, AndhraPradesh-531055,INDIA.