Wireless networks Resume

TECHNICAL SKILLS

Networking: LAN/WAN, OSI, Ethernet, HTTP, SONET, ATM, DNS, MPLS, VOIP, IPv4, IPv6, SSL, IPSEC, AAA, ECID, ARP, TCP/IP, VPN, VLAN, ACL, STP, OSPF, EIGRP,BGP, DHCP, SIP, SS7, Virtualization, Orchestration, ROADM, Cloud, SDN, NFV, Openstack, Loadbalancer, SAN, Broadband

Wireless: GSM, GPRS, EGDE, CDMA, TDMA, OFDMA, EV - DO, UMTS, WCDMA, HSPA, LTE(FDD/TDD), CSFB, RRM, LTE Advanced, Wi-Fi, Bluetooth, WLAN, IMS, VoLTE, MAC, LDAP, RLC, RRC, RAN

Languages: C, Python, Android SDK, Perl

Operating Systems: Unix/Linux, Windows 98/XP/Vista/7/8/10

Tools: CMWRun, Wireshark, JIRA, AWS, XCAL, OpenGL, Yang, GNS3, Mininet, Excel, Web, XML

Qualcomm Tools: QXDM, QPST

Hardware Equipment: R&S CMW500, Anite9000, Agilent 8960, CMU200, SMU200, Anritsu-RTD, R&S TS8980

PROFESSIONAL EXPERIENCE

Confidential

Wireless networks

Responsibilities:

Achieved terminal mobility between heterogeneous networks and evaluated teh performance during handoff. Analyzed VoIP performance parameters and compared with SIP handoff scheme using OPNET simulation tool.
Host agent-based scheme is used to minimize teh SIP session re-setup delay in inter-subnet handovers.

Confidential

Mobile Networks

Responsibilities:

Confidential is determined to improve network features with policy control. Also Deep packet inspection (DPI) technique is used for packet filtering and End to End (E2E) Confidential is achieved by using WFQ, WRED and RSVP.
Discussed different techniques to validate service quality for mobile broadband and also to explore a voice over LTE (VoLTE) validation scheme.

Radio Verification

Confidential

Responsibilities:

Performed protocol testing (L2/L3) on Anite’s SAS for AT&T 10776 document(Carrier Acceptance Test cases)
Experienced in Precertification and conformance testing using CMW500, CMU200, Rohde & Schwarz, Agilent 8960
Performed RF testing on BB handsets for carrier specific and GCF certified test cases on Rohde&Schwarz’s TS 8980 for LTE, TS 8950W for WCDMA and TS 8950G for GSM/GPRS/EDGE
Analyzed device logs and Over teh Air (OTA) radio logs using QXDM/QCAT and root cause L2/L3 LTE call processing issues on BB 10 and android devices based on Qualcomm chipset MSM8960, 8974, 8992, and 8994.
Conducted GSM/GPRS/WCDMA/LTE/VoLTE mobile application Testing, Interoperability tests, Mobile Protocol testing, conformance testing and USIM testing.
Executed T-Mobile protocol test cases using Anritsu-RTD for 3G and Anite-SAS for 2G and LTE
Supported carrier testing (AT&T) in approved vendor lab.
Learned to test MMS/SUPL on Setcom S-CAT 6020 and had good wireshark experience.
Experienced in configuration and troubleshooting Anite’s SAS and Spirent setup.

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