PRAVI PONNAIAH

McKinney TX Cell: 903-***-**** acvsby@r.postjobfree.com

Senior Cellular Network Engineer

Enthusiastic and solution-oriented Senior Engineer pursuing career in global business with 8 years of excellence in the Cellular Technology. Extensive experience in telecommunications RF and network engineering from Network Monitoring, RAN to Planning and Design. Leadership experience in managing high priority projects Network Operation, Maintenance, Engineering and Integration. Excellent interpersonal and communication skills with an ability to work comfortably with business and technical professionals.

Technical Skills:

Operating Systems

:

UNIX/LINUX OS.

Cellular Platform

:

IMS(P-CSCF,S-CSCF,I-CSCF),MME(MKVI),ALU-MME(9471), PGW,SGW,PCRF,PCEF,HSS,HLR/VLR,BTS/RBS,OSS-RC, CAMEL/IN,SMSC,BSC/BSS,RNC(3810/3820),SGSN/GGSN, MPBN,AXE-10,AXE-810,MGW,MSC-S, IREG

13A/GMSC(APZ212/60),TellabsTitan5500,AlcatelDACS-1631,Alcatel DACS-1671,MSN Tellab-8860,Tekelec Eagle 5.

GSM/UMTS/LTE

Protocols

:

DTAP,BSSAP,BSSMAP,BSSGP,BSSAP+,AAL2,Q.2630,

AAL5,NBAP,SCCP,RRC,RAB,RANAP,RNSAP,SCTP,DHCP, DNS,RADIUS,DIAMETER,GTP-C/GTP-U,GTP-v1,GTP-v2,S1-AP,

SG-AP.

GSM/UMTS/LTE

Interfaces

:

Um,Uu,A,C,D,E,ABIS,Gb,Gr,Gs,Gi,Gn,Gp,lu-CS,Iu-PS,IuR,IuB,S1-MME,X2,S1-U,S1-MME,S6a,S11S10,S3,S4,NAS, S5/S8,Gx,SGi,SGs.

IP Platform

:

Firewall(Netscreen/ISG1000/2000/SRX1400),LANSwitch,Cisco ASA5500,(Extreme/Summit48i/1i),Edge-Router(Redback/SE-600), Cisco Catalyst 4848.

Software/Applications

:

Granite XNG, HOMER, Insight, MapInfo, Google Earth

Winfiol, ProComm Plus, SONAR, IWOS, CONCEPT, UTRACK, TRIFECTA, CTS, AMOS/MOSHELL, ENIQ/Business Object, Share Point, Wireshark (PCAP Traces), Network Management (FCAPS). TrueCall.

Servers

:

Oracle Sun Spark T5220, x86 and Linux Centos, Linux Ubuntu

Programming Language

:

Shell Scripting, SQL

SS7 Protocol

Transport Protocol

:

SCCP,MAP,ISUP,TCAP,TUP,SIGTRAN,MTP2,MTP3,M3UA

TDM, ATM, TCP/IP, Ethernet, UDP, ICMP.

Transmission Facilities

:

OC-48, OC-12, OC-3, SONET, T3, T1, DS3,DS0

NMS IP Monitoring

:

NMIS(OPMENTEK), SNMP Community, SNMP TRAP, SNMP MIB.

PROFESSIONAL EXPERIENCE

NetAmerica Alliance-Houston, TX, 12/2014-Present

Senior Network Engineer, LTE Network Support

Provide operational and project support including software upgrades for the Ericsson LTE network elements such as MME, E-Node B, CPG (P-GW/S-GW), PCRF (SAPC), PCEF (SASN), HSS, EMA (Ericsson Multi Activation), EMM (Ericsson Multi Mediation), MPBN and OSS-RC.

Act as Tier I&II technical support, network administrator, lead and first point of contact for NOC operation and 24x7 off-hour “on-call” maintenance activities, and problem resolution.

Handle cost responsibility for NOC operation between $20K to $50K projects, example NMIS for IP transport monitoring and increase memory capacity for servers.

Perform MME, S/P-GW to measure the performance and QoS, also able to understand the end-to-end cellular network call flows for diagnosis and troubleshooting.

Oversee all the nodes in term of login credential, ipaddress, TND and CIQ’s and implement a process to request and apply for login credentials.

Involved Proof of Concept (POC) for IP network monitoring tools OPMENTEK.

Pay an immediate attention to RBS issues through OSS-RC Alarm list Viewer, OSS Common Explorer, AMOS, OSS Explorer (for new node), Software Management Organizer (for LKF) and Performance Management System (initiate data collection) and traces.

Maintain Microsoft share point as centralized mechanism for document, MOP, calendar, on call roster, discussion board and NOC change request.

Implement and save the entire nodes back up in the cloud storage. For example RBS CV’s and basic site package and upgrade package.

Implement and initiate Method of Procedure for each maintenance activities and troubleshooting session.

Managed team of four Tier I monitoring analyst for 24/7 in off-shore.

Work with customer's operations team, equipment vendors and internal operations teams to prioritize, plan and schedule operational tasks and upgrade activities.

Monitor and troubleshoot the LTE network, and will apply technical skills to enhance network performance, utilizing various network monitoring tools, performance counters and performance indicator matrices.

Maintain Low Mean Time to Restoral (MTTR) and issue handling times delivering high levels of Customer Service.

Facilitate, coordinate, moderate, validate, troubleshoot and report the status of network software upgrade activities.

Maintain, monitor, analyze, and troubleshoot LTE network equipment and software in support of network operations.

Plan and coordinate daily activities relating to the Network to ensure its operational level for the customer and members.

Recommend and provide procedures, policies and technical solutions in regards to the network and operations center that affects the customers.

Resolve production incidents by working with internal and external technology support organizations.

Apply troubleshooting techniques in an attempt to resolve incidents. Escalate, when appropriate, using defined escalation procedures.

Oversee status of all events in the escalation procedures for the NOC. Own the incident and drive through to resolution.

Open, update and close tickets. Communicate status to customer/members/management via approved communication processes CRM.

Manages Vendor tickets to ensure efficient and customer focused support is maintained.

Ensure both customers and internal management is notified of outage situations and provides updates until situations resolved.

Raise equipment Return to Manufacturer Authorizations (or Return Materials Authorization) (RMAs) and to track these through to problem resolution.

Produce a written summary report of the status of equipment and network problems on a regular basis to the customer.

Hold technology workshops with the customer to discuss equipment and network problems, and to provide case status updates, including the reasons for any problems encountered and the workarounds and/or solutions that are being tried.

CERION INC for ATT Mobility-Dallas, TX. 06/2014 to 09/2014

VoLTE/IMS Analyst (Lab Services)

Designed, developed and documented scripts for collecting VoLTE related performance measurement data, including latency and other KPIs between RAN, LTE Core and IMS Core Nodes.

Designed scripts to analyze and optimize field performance issues.

Developed VoLTE performance optimization strategies, including optimal parameter settings from E2E viewpoint.

Designed solutions to improve VoLTE RAN performance in congested sites and venues.

Designed method to quantify and report benefits from RAN trials proposed to improve VoLTE performance.

Working knowledge in Call Detail Record (CDR).

Prepared and run Perl/Python scripts to extract raw data from database for analysis.

Call traces using Iris View to analyze the bearers and call flow messages.

Run SQL query in Optima to get the EUTRAN counters for Ericsson eNB Accessibility KPIs.

SYSTELLEX INC FOR GCI Wireless-Anchorage, AK 07/2013 – 06/2014

MSC Switch Engineer

Performed as Project Engineer for a critical project, IN/CAMEL phase II in RW (remote wireless) network and WPS (Wireless Priority Services).

Responsible for the engineering design and system performance of LTE/UMTS/HSPA and GSM/GPRS/EDGE Core Network.

Designed and optimized core network services of new nodes for performance and capacity.

Involved in Lab test environment and performed test cases before implementation of new software or technology.

Documented process, trouble ticket generation and work order generation and follow up on faults in the system.

Configured Signaling links, link sets, Route sets and Routes.

Performed GT and SCCP based routing of calls, digit analysis, Trunk channels Augmentation.

LERG update in the Ericsson MSC-S.

Responsible for 911 data translation in MSC-S for new site build.

Modified and provisioned SIM’s with G&D UniverSIM® Master for OTA.

Worked on SCP prepaid system with OPENCODE/STREAMWIDE platform and evaluated the ATP.

Developed and established process & procedures to mentor and train Technicians.

Prepared and implemented MOP, review, walk through and leading the execution and ensure the successful delivery.

Worked on routing changes (MSC-S), SS7 global title and routing (MSC-S), roaming, Camel prepaid services while maintaining the current core systems according to design standards, and upgrade and modify as required.

Involved in integration of new nodes and services, ongoing routing and translations, pre-paid service deployment, CALEA, Wireless Priority Services (WPS), and other ongoing network enhancements and upgrades.

On-call 24x7 for system outages or scheduled work.

STONE RESOURCES GROUP FOR AT&T Mobility-Alpharetta, GA. 12/2011 – 07/2013

Network Planning and Design Engineer for South East Region

Responsible for design, analysis, planning and modification of network components and architecture in support of the wireless infrastructure.

Responsible for creating and completing Customer Information Questionnaires specific to Ericsson RNCs and Tektronix probes.

Defined end-to-end UMTS system designs, including but not limited to, radio network access architecture, infrastructure, backhaul, capacity, transport, routing, network supervision, optimization and performance management.

Developed mid to long-term planning for a specific technology, which includes analysis, solution recommendations, and implementation strategies to complex business issues.

Submitted IWOS tickets and corresponding CTS tickets to gather and collect the required information to complete CIQs/ATNDs for each of the RNCs and corresponding probes.

Involved in design and engineering for SPB4 IP heavy hardware upgrade for FFA.

Coordinated with all the RNC planners and project managers and other groups to gather and collect the required CIQs/ATNDs for each of the RNCs and corresponding probes.

Prepared Node-B Re-Home CIQ according to ATND and Node-B plan revised and submitted to appropriate group for execution.

Created Transport Network Design documents relative to Ericsson RNC HW and RAN.

Created Node B Re-home and border designs CIQ using MapInfo, CONCEPT, AT&T RAN MAP and RNC Tool Reports.

Worked directly with MSC & SGSN Planning Engineers for inputs to develop CIRF and IOT documents for MSC and SGSN in pool for RNC Integration.

Involved in designing UTRAN, IP, Access Transport (ATM) Aggregation Strategy, physical port layout and connections between various WRAN nodes.

T-FORCE FOR Ericsson Inc-USA, Supporting AT&T Alpharetta, GA. 06/2011-11/2011

RNC Planning and Transport Network Design Engineer (TND)

Provided support at the customer’s location in Atlanta for South East Region for TND.

Performed network planning, Access Transport Network Design, network performance audits and scripts for RAN Transport change implementation in UMTS Networks such as RNC, Node-B, OSS nodes and OAM and access network routers.

Involved in analyzing and optimizing UMTS network with emphasis on identifying the network capacity needs.

Performed planning and optimization of RNS (radio network subsystem) by considering different parameters: current traffic, traffic growth, Handovers, network performance.

Reviewed, analyzed, and reported the impacts of network element upgrades, additions and growth.

Troubleshoot scripts/transport network designs especially during implementation or network disturbance/fault situation.

Solve complex problems that require substantial analysis and performed diagnosis to network and system performance.

DIZER CORP FOR AT&T-Mobility Middletown, NJ 08/2010-05/2011

Network Planning and Design Engineer (Virginia and W.Virginia Market)

Responsible for developing, designing, planning and building AT&T's wireless networks, including IP backbone.

Key deliverable includes developing Engineering Design Packages (EDP) for project related activities and updating the Engineering database as per the design.

Worked with various departments regarding BTS/Node B placement within the RNC boundary designs.

Developed design package detailing current market configuration, future market configuration, major network equipment changes and re-home projects to transition the network from current to future configurations.

Performed detailed capacity analysis using databases such as CONCEPT/UTRACK/NEAC.

Planned and designed activities of Ericsson UMTS (3810 and 3820) RNC elements.

Prepared ATND master template according to RND_CIQ base on RBS site, RF parameter and Ericsson PO.

Prepared IuR, IuPS, and IuCS CIQ for new planned RNC’s.

Created an external IuR link between Ericsson and ALU market depending on the RNC border.

Created and inter region IuR for both Ericsson and ALU RNC’s depending on the RNC border.

Performed RNC interface dimensioning using ET-M4, ET-MF4, ET-MFG, ET-MFX, ET-IPG and CMXB for RNC 3820.

Extracted ETTC EDP to design Iub over IP to cell site for both RNC 3810 and 3820.

TEKSYSTEM FOR Ericsson Inc.-USA, Plano, TX. 02/2010-08/2010

UMTS Software Deployment Engineer

Performed Software updates and upgrades on customer’s UMTS networks on RBS and RNC.

Installed and updated license key from the license server via OSS and manually.

Performed contractually agreed upon customer network audits; including but not limited to: SW/HW/Parameter/Feature/License.

Wrote scripts/programs to have prompt and accurate results.

Performed SW record comparison, health checks and alarm clearing before and after updates.

Performed pre and post health check according to the Method of Procedure (MOP).

Worked on Ericsson BENT reporting system.

Escalated issues after the upgrade to the Ericsson FLS and SLS immediately.

TEKSYSTEM FOR AT&T Mobility- White River Junction, VT. 03/2009-12/2009

UMTS Switch Engineer

Performed Operation and Maintenance of GSM switch, BSC AXE-810 (Ericsson APZ 212 33C), BTS (Ericsson RBS 2000 family) includes arguments and integration of each node.

Completed rehoming of 187 cell sites from Verizon RCC networks to AT&T networks

Mapped 187 Ericsson cell site SMLC from Polaris to True Position E911.

Analyzed Cell Data Design (CDD) from RF to create a Data Translation for new cell site.

Executed engineering work orders (EWO) using Remedy and method of procedures (MOPS).

Performed testing and acceptance on Facility (DS0/T1, DS3/T3, and Sonet OC-3) using test equipment T-Berd 2310 and Net Analyst.

Installed DSX-1and DSX-3 cross connects and LGX fiber cross connect using ADC panel.

Supported with BSC, BTS, and RNC and switch migration and Re-homes for Ericsson APG40, BSC and RBS.

TEKSYSTEM FOR T-Mobile-Manhattan, NYC. 12/2008-02/2009

Switch Technician

Performed a test with field technician and run test patterns before accepting the T1.

Tested and accepted T1 facilities for UTMS project.

Monitored and maintained project tracker to ensure that all T1's are accepted within dates specified.

Interfaced with Local Exchange Carrier to ensure that problems with T1's are resolved, troubleshoot issues with T1 facilities, and to schedule the testing and turn-up of T1 facilities.

Groomed T1's from one facility to another.

.

TEKSYSTEM FOR T-Mobile-Norton, MA. 06/2008-11/2008

UMTS Switch Technician

Responsible for day to day O&M activities at a GSM switching facility that comprises of Ericsson MSCs/ BSCs, Alcatel Media Gateway, and various transport equipment.

Assisted operations staff members in the day-to-day operation and maintenance of the UMTS network. Perform alarm monitoring tasks, acknowledge, investigate and clear alarms. Collect logs, dispatch field techs to Node B site and follow proper escalation procedures for major outages.

Prepared DT script and Integration of new cell sites based on RF configuration.

Implemented new RF features like TCC (Transmit Coherent Combine), SPB (Software Power Boost) based on RF engineering inputs.

Implemented Cell Rehome using OSS/CNA tool and Frequency Retune Plan.

Augmentation of new trunk routes in Alcatel Spatial Media Gateway and Ericsson AXE 810 MSC.

Built transport path for new T1s in Tellabs and Alcatel DACs.

Conducted head-to-head test before accepting new T1s and T3s from the vendors, Bert testing.

Worked closely with RF, TDOA and True Position EMS, field engineers, and vendors to integrate LMUs into key cell sites.

Identifed transport network facilities, CFAs; circuit IDs, CLLI codes for new DS1/DS3 turn-up.

DiGi Telecommunication Pty. Ltd., Kuala Lumpur-Malaysia 01/2002-01/2002

MSC/BSC Switch Technician

BSS Support technician responsible for commissioning, integration, optimization, and troubleshooting of AXE 10 Switches (BYB501 and ET155 Transmission Link).

DiGi Telecommunication Pty. Ltd., Kuala Lumpur-Malaysia 07/1997-12/1999

NMC Shift Leader

Monitor and maintain real time surveillance of ERICSSON AXE10, MSC, GSM & GPRS switches and other applications like BSC, HLR, STP, Comverse Voicemail Systems, SMSC, SDP, IVR, OSS, C7 signaling and DXX (Tellabs).

EDUCATION & PROFESSIONAL TRAINING

Saginaw Valley State University-SAGINAW, MI: 01/2002-05/2002

General Credits Requirement

GRAYSON COUNTY COMMUNITY COLLEGE-DENISON, TX: 08/2002-05/2004

General Credits Requirement

TEXAS TECH UNIVERSITY-LUBBOCK, TX: 08/2005-12/2005

General Credits Requirement

University Of North Texas-DENTON, TX: 01/2006-08/2008

B.S Electrical Engineering Major, Mathematics Minor

CISCO CCNA Routing & Switching certified CSCO12324182

CISCO CCNA Wireless

PLUMgrid/OpenStack Certification

PC-ONA ( PLUMgrid Certification-OpenStack Network Associate)

Contact this candidate