Kashif Amanullah Khan

kashaman21@gmail.com, Skype – kashif.khan211

 

Professional Summary

A highly experienced Telecommunications Networks Professional Engineer with over 12 years of working experience of maintaining, planning, analyzing and optimizing Core CS/EPC and RF network domains. Highly motivated and capable to lead teams to achieve targets and objectives.

 

Professional Skills

·   Analyze and evaluate Network (Core CS/EPC/IMS and WCDMA/LTE RAN) E2E Performance and Capacity issues and propose effective solutions

·   Performance monitoring and analysis using KPI/KQI

·   Practical working level knowledge of UMTS/3G, LTE RF technologies.

·   UMTS/HSPA+ and LTE Coverage and Capacity Optimization.

·   Practical working level knowledge of CS/PS, EPC and VoLTE/IMS/ICS technologies.

·   Knowledge of Customer Experience Management systems.

·   Planning and dimensioning of CS voice and signaling networks.

·   Network Performance Improvement & Optimization (RF/Core Parameters and Timers).

·   RF drive test Ue/Scanner logs post Processing and Analysis for LTE RF Optimization.

·   Basic knowledge of In-Building Radio Planning & LTE Radio Network also familiar with In-Building and LTE Design Optimization Process.

·   Enhanced E2E problem analysis and troubleshooting skills using Traces, GPEH events, logs and pm KPI’s.

·   VoLTE/IMS/EPC Networks E2E understanding  of protocols and call flows 

·   LTE Roaming.

·   Transmission Layer performance evaluation (RBS/ ERBS / MGW based)

·   QoS alignment, mapping and parameter optimization (SPI, DSCP, ARP, THP, QCI etc.)

·   HSS / HLR QoS profiles (AMBR DL, AMBR UL, THP etc) 

·   CS and EPC network capacity growth forecasting and bottle neck analysis.

·   UMTS/LTE Handover/Mobility performance analysis and optimization.

·   Drop Call rate in CS/PS and VoLTE/IMS networks improvement strategies and features.

·   HSPA/HSPA+ and LTE Throughput Optimization.

·   UMTS/LTE Multi carrier load balancing and mobility optimizations.

·   IRAT cell reselection and handover Optimization.

·   UMTS/LTE Random Access stage performance evaluation and optimization.

·   LTE Pre-launch performance/KPI check and tuning.

·   LTE Post-launch performance/KPI check and optimization.

·   Ericsson UDC (HLR-FE, HSS-FE and CUDB) solution performance analysis.

·   Performance and Capacity analysis of MSC – Blade Cluster/Dual Blade, MGW, STP, Classical HLR, Smart Edge.

·   Performance and Capacity analysis of BSC, RNC, EnodeB.

·   Performance and Capacity analysis of IMS/VoLTE systems.

·   Performance and Capacity analysis of SGSN/MME, GGSN, SGW/PGW and SACC/SAPC.

·   Signaling L2/L3 GSM, UMTS and LTE traces for troubleshooting.

·   Good knowledge of LTE Rel 10/LTE-A, Carrier aggregation, ICIC and CoMP techniques.

·   VoLTE features like optimum scheduler, Dynamic GBR Admission, RoHC, Multi Target RRC re-establishment etc.

·   Good knowledge of IBS/DAS.

·   Good IMS/ICS Knowledge (P/S/I-CSCF, SBG/ATCF, MTAS, MGC,MRS, SCC-AS, MMTel –AS etc.)

·   Good VoLTE knowledge (ICS, SRVCC, QoS, IMS for VoLTE, PCRF for VoLTE)

·   Good Understanding of Small cells like Femto Cells, Macro sites, Pico sites.

·   SACC/SAPC Performance evaluation and Optimization.

·   Microsoft SQL and MySQL scripting for building performance reports.

·   Subscriber and Network voice and signaling Traffic Profiling.

·   Senior Executive level presentations and reports.

·   Prepare MSC/MSC-S, MGW nodes Integration Plans.

·   Ericsson CANDI Design and Dimensioning Tool

·   Ericsson PDC Tool for PS nodes

·   Mycom Proptima Performance Tool

·   Drive test data post processing and Analysis

·   WindCatcher PLUS, Wire Shark, MapInfo, TEMS Suite, Accuver XCAP, Accuver XCAL, Actix, Optimi suite, EDOA ERA etc.

·   SGSN,MME and GGSN/EPG EBM logs

·   SAP Business Intelligent Reports.

·   AXE system Test System Tracing

·   Knowledge of PROPS-C, ITIL, eTOM and Ericsson MSTOP model.

·   Understanding of applicable industry standards 3GPP, 3GPP2 etc.

 

Trainings, Awards and Certifications

·  Ericsson LFP (Leadership for Professionals) Training (Ericsson AB, Riyadh) --- Jan 2015

·  Ericsson ETCP IMS Associate Certification (Ericsson AB, Riyadh) --- Dec 2014

·  LTE L14 Radio Network Functionality (Ericsson AB, Riyadh) --- Nov 2014

·  VoLTE/IMS E2E Use cases and Functionality course (Ericsson AB, Riyadh) --- Nov 2014

·  LTE RF Optimization Certification Workshop Ue Logs Based (Award Solutions TX, USA) --- October 2014

·  Ericsson Senior Level Certification (MS Assurance Engineer) --- August 2014

·  SACC Optimization Training Course (Ericsson AB, KSA) --- June 2014

·  Ericsson Appreciation Award 3^rd Quarter 2013 --- August 2013

·  Soft Skills and Customer Management Training (Ericsson AB, KSA) --- Dec 2013

·  EPC Signaling Training Course (Ericsson AB,KSA) --- October 2012

·  Ericsson LTE L11B Operations Training (Ericsson AB, KSA) --- April 2012

·  Ericsson LTE L11B Performance Management & Optimization (Ericsson AB, KSA) --- May 2012

·  Cisco CCIP Training (Corvit Systems, Pakistan) --- May 2007

·  Ericsson M-MGw Operation & Configuration Training Course (Ericsson LM Ireland, UAE) --- Nov 2006

·  MSC-S Configuration Course (Ericsson Education, Pakistan) --- Nov 2006

·  Mobile Soft-switch Solution R3.1 Course (30th Oct 2006 to 31st Oct 2006) conducted by Ericsson Education Pakistan --- Oct 2006

·  Business Objects Program Workshop (Ericsson Education Malaysia, Pakistan) --- April 2006

·  PTCL Basic Telecommunications Training, Haripur Pakistan (Dec 2002 to – June 2003)

·  Huawei Technologies CDMA2000 Wireless IN, SMSC, WAP Gateway and MMSC Training, Shenzhen China (April 2004).

 

Major Achievements and Projects

·   SRVCC trials and testing technical support and RAB establishment trouble shooting and interworking with Huawei TSC and IMS nodes involved (ATCF, ATGW, HSS, SCC-AS etc.)

·   VoLTE calls trials over Ericsson EPC and Huawei EPC.

·   VoLTE based features trials and testing.

·   LTE and VoLTE roaming testing support.

·   In Huawei MME to Ericsson MME Enode-B project S1 Connection Setup degradation issue trouble shooting support.

·   In Huawei MME to Ericsson MME Enode-B project Inter – MME S1 handover degradation issue trouble shhoting support.

·   Investigation into observation that once E/// Enode –B was moved from Huawei MME to Ericsson MME the E-RAB drops increased.

·   Classical Ericsson HLR to Ericsson UDC project.

·   Ericsson Blade Cluster in Pool Project.

·   Ericsson CS Common Core implementation.

·   Enode-B and MME SIGTRAN Timers audit and optimization.

·   SGSN and MME in Pool.

·   CS 3G DCR improvement through RRC re-establishment feature trial and testing.

·   3G PS Paging optimization

·   LTE Adaptive smart paging implementation in Ericsson MME Pool.

·   CSFB and SGS paging parameter/timer audit and tuning.

·   SACC and Header Rule/DPI optimization support.

·   PCC IMSI migrations and FUP support.

·  Etc.

Work Experience

Senior Network Optimization Engineer (E2E)                  (Feb. 2012 to Present)

Ericsson AB                   Riyadh, Saudi Arabia

 

Ericsson is a world-leading provider of telecommunications equipment and services to mobile and fixed network operators. Over 1,000 networks in more than 180 countries use Ericsson network equipment.

Currently I am working as in Operations Support for STC Managed Services. Some of my main responsibilities and completed tasks are:

 

·   Analyze and evaluate Network (Core CS/EPC/IMS and WCDMA/LTE RAN) E2E Performance and Capacity issues and propose effective solutions

·   Performance monitoring and analysis using KPI/KQI

·   Technical support of New Features testing and Projects for EPC, VoLTE and SRVCC and coordination with Huawei IMS.

·   Ericsson UDC (HLR-FE, HSS-FE and CUDB) performance and capacity evaluation.

·   SGSN/MME, SGW/PGW and SAPC performance and capacity evaluation.

·   E2E trouble shooting across domains like RNC, EnodeB, MME, SGW/PGW, MSS, HSS, STP and SRVCC/VoLTE over Huawei IMS solution.

·   CS and PS/EPC Core Network Performance monitoring for essential KPI’s and working with BO teams for the fix and resolution of highlighted issues.

·   Perform and develop Network Performance and Configuration audits for CS Core (MSC-S/MGW) and PS/EPC Core (SGSN/MME/GGSN/SGW/PGW)

·   Successfully improved various KPI’s like CS and PS Paging, Inter MSC HO, Inter and Intra SGSN RAU, SGSN Attach Success, PDP Context activation Success, Inter-MME Handover etc.

·   Traffic forecasting and Capacity Planning for Special Events like Hajj, Ramadan, Eid etc.

·   Member of a special technical support team (SME) created to handle priority customer complaints and Network Issues with an End to End approach in mind.

·   Core Voice interconnects (E1’s and BICC) and routes capacity monitoring and dimensioning

·   C7 and SIGTRAN link utilization monitoring and expansions.

·   Completed various long term traffic growth studies to forecast Network Capacity limitations like hardware and License for both CS voice and PS/EPC data Networks including SAPC.

·   Ensure to keep CS subscribers in the 3G MSC Pool balanced.

·   Ensure to keep SAU in the SGSN in Pool balanced.

·   Supported various new projects and feature implementations (e.g. MSC in Pool, National Numbering Plan change, SGSN/MME in Pool, eNodeB migration to E/// MME,CSFB, SMSoSGs etc.) through network performance checks and ensuring that the KPI’s stay within agreed levels.

·   Support various BO Teams (CS, PS, LTE/WCDMA RAN, Transmission etc.) through performance evaluations and KPI checks during problem investigations.

·   Successfully created and presented Core CS and PS/EPS Network accomplishment and enhancements in Senior Executive level meetings.

 

Consultant Senior RF Optimization Engineer                                   (Jan. 2009 to Feb. 2012)

Saudi Telecom Company                           Riyadh, Saudi Arabia

 

·   Radio Network Optimization for STC UMTS/3G and LTE – FDD/TDD sites of Central Riyadh region.

·   Tuning by adjusting Azimuths, Mechanical and/or Electrical tilts (RET) and Parameter optimizations to meet the major KPI’s like accessibility, Drop, latency, Packet Loss, DL/UL Throughputs etc.

·   Dropped calls and Event Analysis for the Clusters and providing recommendations in the Analysis Reports.

·   Network KPIs check like RRC SR, E-RAB Session Success rate Per QCI, IRAT HO (CSFB), MAC DL/UL Throughput, and Percentage of 64QAM, 16QAM & QPSK for DL/UL and PRB usage for UL/DL

·   Neighbor relations auditing and optimization.

·   Random Access Channel (RACH) performance checking and optimization.

·   Hands on experience on Ericsson RBS6000 with LTE Release L13.

·   Drive testing logs post processing using TEMS.

·   Handovers performance checking and parameter optimizations.

·   Cell Re-selection and IRAT parameter tuning.

·   UMTS site level CPICH Power parameter tuning.

·   Evaluation of Boomers and control the Overshooting using Coverage plots and drive test logs.

·   Inter Frequency (Carrier) load balancing and Handover/Cell reselection parameter tuning.

·   Analyze and evaluate for RSCP, RSRP, RSRQ, SINR, Ec/Io, Throughput and Coverage using UE/Scanner logs and Cell Traces.

·   HSPA/HSPA+ Throughput issues analysis and optimizations.

·   Prepare and execute data for Automatic Cell Planner (XCAP), analyze the results provided by XACP for implementation in the Radio Network Design.

·   KPI Statistics calculation and compare Baseline, Constrained and Unconstrained design KPI’s.

·   Very good understanding of the general propagation models and wave propagation based on the clutter types.

·   Very good understanding of Parameter tuning and defining of baseline parameters.

·   Achieve and maintain the Radio Network Performance as per the contracted KPIs (Accessibility, Retain ability, Mobility and Service Integrity).

·   Plan and fine tune the orientation and down tilt of the antenna to ensure proper signal.

·   Fine tuning of specific RF parameters for the sites and clusters to reach optimal thresholds of KPI's.

·   Assist Field drive test teams in validating the site configuration & performance in the field during the site and cluster drive processes.

·   Drive test data post processing and analysis to isolate and remove any abnormalities in the network behavior and verification that Network behaves in line with planned parameters.

·   Identify and mitigate pilot pollution, handover issues, and other common UMTS and LTE RF system issues.

 

Senior Consultant MSS Network Design                                   (June 2008 to Dec. 2008)

MTN Nigeria                            Lagos, Nigeria

 

MTN Nigeria is part of the MTN Group, Africa's leading cellular telecommunications company. It now provides services in 223 cities and towns, more than 10,000 villages and communities and a growing number of highways across the country.

 

·   Successfully developed Expansion plans for MTN FY-2009/2010 to support 29 million subscribers.

·   Successfully performed Node level Capacity Dimensioning (MSC-S & MGW) to support subscriber growth FY-2009/2010

·   Supported Ericsson EP team in Network Evolution/Modernization Strategy Plans

·   Subscriber Profile Creations (BHCA, mE/sub etc.)

·   Successfully conducted audit of M-MGw IP interfaces and recommended optimizations as per Ericsson Designs Standard.

·   Successfully provided trouble shooting support on issue of High Call Arrival Rate in some MGW’s.

·   Successfully supported Core rollout & Integration Planning for New MSS nodes coming in the MTN Network

·   Successfully performed device Audits (MGW modules, C7 & HSL Devices etc.)

·   Signaling KPI Monitoring & Analysis (C7, HSL-ATM, SIGTRAN)

·   Successfully conducted Network Performance Audits.

·   Performed node level allocations for initial integration of nodes in MTN network

 

Senior Consultant Core Networks Planning & Optimization                              (Sep. 2007 to June 2008)

DiGi Telecom SDN Bhd                     Shah Alam, Malaysia

 

DiGi Telecom is part of the Telenor Group. DiGi commenced operations in May 1995 when it launched its fully digital GSM 1800 services, the first digital mobile communications service in Malaysia. Currently it has a subscriber base of more than 10 million.

 

·   Successfully supported Planning Team in reviewing DiGi MSS Design documents (HLD/LDL) for new phases

·   Successfully developed DiGi Yearly Capacity Plans based on marketing forecasts.

·   Performed Network Subscriber & Traffic Profiling

·   Successfully supported and provided technical consultation for DiGi MSC-in-Pool Design

·   Successfully performed A-interface capacity dimensioning for BSC re-parenting

·   Successfully performed SAE dimensioning for traffic sensitive SAE’s

·   Supported the cross team project for network Call Setup time improvement

·   Performed MSC AXEPARS (Ericsson) optimization & consistency audit across the network

·   Successfully balanced certain SIGTRAN and SS7 Signaling links in the network.

·   Optimal Echo Canceller Device Usage Parameter Optimization

·   EOS, CAU and COS values standardization

·   Performed MSC and MGW Announcements Standardization

·   Successful completion of Paging and MSRN Timers Optimization

·   Successfully supported in Mobile Number Portability Design Review 

 

Senior Core Networks Planning Engineer                        (Aug. 2005 to Feb. 2007)

Warid Telecom Pvt. Ltd. (WaridTel)           Lahore, Pakistan

 

Warid Telecom is 100% owned company of the Abu Dhabi Group launched its operations in May 2005. My main responsibilities and achievements during my term at Warid were:

 

·   Core CS Network Performance and Analysis Reports generation for department as well as Management for MSC, MSC-S, MGW, BSC’s etc.

·   Voice traffic links (Inter MSC, TSC, A-Interface, Inter Operator etc.) capacity monitoring and dimensioning via expansions or routing modifications.

·   C7 and SIGTRAN based signaling links utilization monitoring and capacity dimensioning via expansions.

·   MSC/MGW hardware allocations for E1 and Signaling expansions.

·   International Roaming Testing.

·   Performing routine quarterly hardware and performance audits.

·   Responsible for maintain planning database of MSC Hardware Allocations.

·   Successfully supported the project to migrate classical SS7 based links in the network to IP based SIGTRAN.

·   Successfully supported Project of National Numbering Plan change (from 7 digits to 8 digit plan) by ensuring through Performance analysis the voice calls performance in the Warid Network is not effected.

·   Successfully delivered MSC Pool based Performance Analysis and Planning reports after the MSC in Pool Project.

·   Successfully supported the National Mobile Number Portability Project through network performance analysis and checks to ensure high levels of service during and after the project.

·   Capacity planning and forecasting for voice Network for major yearly events like (New Year, Eid etc.)

·   Successfully created implementation Plans for Warid’s new NDC’s (0322 & 0323).

·   Successfully developed methods and reports for forecasting MSC CP load during events like Eid and New Year.

 

Core Switching Engineer (ADE)                        (Dec. 2002 to Aug. 2005)

Pakistan Telecommunications Ltd. (PTCL)           Lahore, Pakistan

 

PTCL is the largest Telecom Group in Pakistan. In 2006 it became part of the Etisalat Group of UAE. Its portfolio includes Fixed Wire line Network, Cellular Network (Ufone), Broadband and IP Networks, IPTV, CDMA 2000 WLL Network and more. My main tasks during my tenure at PTCL included:

·  Operations and maintenance tasks of the Lahore Fixed Transit-B Exchange.

·  Data Transcripts and Parameter Configuration of the Exchange.

·  Maintenance and definition of Inter Exchange voice trunks (E1’s) and C7 signaling links.

·  Traffic and Calls data analysis and checking for possible fraud and illegal calls terminations by third party calling card companies.

·  Building daily Exchange data backups.

·  Operations and maintenance of the WLL CDMA – 2000 Huawei Exchange in Lahore (PTCL V-fone service).

·  Dealing with and resolving PTCL V-fone customer complaints.

 

Network Switching Engineer                        (April 2002 to Dec. 2002)

Pakistan Telecom Mobile Ltd. (Ufone)           Lahore, Pakistan

 

Ufone a 100% subsidiary of PTCL launched its operations in 2001 and very quickly gained a large share of the cellular market. My main responsibilities during my tenure at Ufone included but not limited to:

·  Daily O&M tasks of the Nortel DMS – 100 mobile MSC and other equipment at Lahore site.

·  Switch Data Transcripts and Switch parameter configurations.

·  International Roaming testing and coordination.

·  Generation of MSC Traffic performance reports.

·  Customer complaints troubleshooting and follow-up.

·   Conducting PAT (Performance and Acceptance Tests) for Software Upgrades & New Features.

Education

·  University of Engineering & Technology, Lahore
BSc. Electrical Engineering Honors (1997 to 2001)

Work References

·  Available upon request.