Anand B Biradar

M R Nivas Flat No 006           Mail id:biradar.b.anand@gmail.com

29th 'C' Cross, Balaji Layout, Kaggadaspura,            biradar.anand@gmail.com

 

Over 9+ years experience in Telecom Domain, Good expertise in wireless Protocol Stack Development on UE side in NAS/AS sub layers. A flexible and committed team player with full knowledge of software development lifecycle, good communication, design and debugging skills allied to an ability to quickly adapt to changing environments and multisite projects.

 

3GPP Change Requests

Ø      C1-143342: PS signaling connection release in order to perform PLMN search.(TS 24.008 Rel-12). Patent Application No : 3199/CHE/2014

Ø      C1-142470 and C1-142471 : ISR should be activated in the UE when T3312 is deactivated.(TS 24.008 and TS 24.301 Rel-12). Patent Application No. 1944/CHE/2014

Ø      C1-141330: PS Signaling Connection release.(TS 24.008 Rel-12). Patent Application No : 2425/CHE/2014

 

Technical Skills

Languages   : C, C++.

Platform      : Windows, Solaris, Unix/Linux.

RTOS             : RTK, Nucleus.

Tools               : Clear case, Perforce (P4), Test Real Time, Sun Workshop,

  Trace 32 debugger, Shell Scripts

Domain                   : Multi mode Protocol Stack (GSM/GPRS/3G/LTE),

Dual SIM Dual Standby, Embedded System and IRDA protocol stack.

Protocols                : RRC(Radio Resource Control), EMM (EPS Mobility management)

                                   MM (Mobility Management),GMM (GPRS Mobility Management),

                                    CC (Call Control), SS (Supplementary Service), SMS (Short

                                    Message Service), DHCP (Dynamic Host Configuration Protocol),

                                     ARP (Address Resolution Protocol), RLC/MAC.

Others                 : Field testing, IOT(NSN) and IODT(Ericsson), Linux/Unix system programming, Multithreaded Programming, Socket Programming.

 

 

 

Professional History

 

Current Organization: Samsung India Software Operation Pvt. Ltd. Bangalore from 15-Nov-2010 to Till Date

 

Ø     Multimode Dual SIM Dual Standby Protocol stack and NAS CP and RRC (TD-SCDMA) protocol Enhancement and Maintenance.

Description: Dual SIM Dual Standby(DSDS) protocol stack NAS modules requirement study, design, implementation and testing. 

Study and implementation of 3GPP Rel-8, Rel-9 and Rel-10 CR related to EMM/MM/GMM and NAS control plane and RRC(TD-SCDMA) protocol stack maintenance, enhancement, field and customer issue analysis and fixing.

 

Ø     Single Radio Voice Call Continuity (SRVCC)

Description : IMS call over LTE, if EUTRAN detects UE is moving towards a 2G/3G network then of seamless handover of IMS call to 3G/2G network. Performed requirement study, design, implementation and testing.

·  C1-085524 : Indication of HSPA SRVCC capability

·  C1-091261 : CC and MM procedures for SRVCC

·  C1-095729 : Triggering conditions update for RAU

 

Ø     Idle Mode Signaling Reduction(ISR)

Description : Idle mode signaling reduction allows the UE to roam between LTE & 2G/3G without performing TAU & RAU respectively. ISR reduces the frequency of TAU and RAU procedures caused by UEs reselecting between E-UTRAN and GERAN/UTRAN which are operated together. Design, Implementation and Unit Testing of ISR.

Implementation of 3GPP CR's related ISR(Rel-8 and Rel-9):

·  C1-085192 ISR for CSFB

·  C1-091309 SM and GMM sublayers coordination for supporting ISR

·  C1-091180 ISR local deactivation in the UE

·  C1-095230 : LAU clarification for ISR and CSFB interworking

·  C1-101041 : Corrections on periodic routing area update timer and GERAN/UTRAN Deactivate ISR timers in the UE

 

Ø     Circuit Switched Fallback(CSFB)

Description :The CS fallback in EPS enables the provisioning of voice and other CS-domain services by reuse of CS infrastructure when the UE is served by

E-UTRAN. Design, Implementation and Unit Testing of CSFB(Circuit switched fallback) Feature and Performed Integrated CSFB IODT testing in Ericsson Lab Kista Sweden.

Implementation of 3GPP CR's related CSFB(Rel-8 and Rel-9):

·  C1-085309 Paging response for CS Fallback

·  C1-091253 Addition of CS Fallback capability support in MS Network Capability

·  C1-092164 Mobile Id for Paging Response

·  C1-091808 Emergency calls handling

·  C1-092876 Emergency calls when the MS is not registered to CS domain and camped on an E-UTRAN cell

·  C1-091807 MM state when MS is under E-UTRAN coverage

·  C1-102197 Location updating during CS fallback

 

Ø     Interworking between LTE and Dual mode and enhancement of dual mode stack :

Description  : Interaction between A/Gb or Iu mode and S1 mode.

·  C1-093669 Interaction between A/Gb or Iu mode and S1 mode

Implementation of interaction between A/GB or Iu mode and S1 for

TAU/RAU update failure and success cases.

 

ST-Ericsson India Pvt. Ltd. from 22-Nov-2007 to 12-Nov-2010

 

Ø     Dual Sim Dual Stand By(DSDS)

      Description  : The Library for UE initialization, MMM, CMM and GMM modules                

      design, implementation and testing for DSDS protocol stack for 2G and 2.5G      

      solution. With single RF and single baseband, the two protocols stacks running in

      parallel and managing synchronization between RR and NAS modules.        

 

·         CMM (Circuit Switched Mobility Management) and GMM (GPRS Mobility Management): The suspension and resumption of CMM and GMM module in case of CS call or CS sig on the other stack and CS/PS sig and CS/PS call on the other stack for DSDS cases respectively.

 

·         MMM (Mobility Management Manager) : The suspension and resumption of CMM and GMM and handling of user request for DSDS cases.

 

·         LIBINT : The libint holds all the details of  the EEPROM field for the mono

                SIM UE, so duplication of EEPROM fields for the duplicated stack and access,

                  modification and updating of corresponding EPROM fields for the duplicated

                  modules of the stack.

 

Ø     Duplication Script for DSDS

      Description     : The duplication script duplicates the entire original module with

      unique names for global variables, functions and imported modules functions and

      variables. Creates exact replica of the original module and verifies the duplication with

      original module statistics. Intern script is ported for the different platform.

 

 

Ø     Virtual Ethernet Protocol(Vetherpro)

     Description       : The design, implementation, host and target testing of Vetherpro

      module. The UE connected to host using USB, acts as DHCP server and Router in LAN.

     The UE assigns IP to the PC using DHCP after PDP context activation. Resolves the

      ARP queries and manages the uplink and downlink data transfer with Zero Memory

      copy.  RFC’s: 2131 and 826.

 

 

Ø     Dual Mode Wireless Protocol Stack

      Description       : Rel-99 to Rel-4 Protocol stack feature development,

      enhancement & bug fixing Module ownership of Call Control, Short message service,

      Supplementary service, Mobility Management, GPRS Mobility Management, Library

      for UE initialization, General utility function.

 

·                       Video Share Supplementary service: A call dependent SS, which allows sharing of Picture and video during voice call.

 

·                       User-User Service: A call dependent SS, Which allows transfer of limited text message during call. UUS 1, 2, 3 feature design, development and testing.

 

·                       Enhancement of NAS-CP Modules for the 3G Protocol layer on the MS for Samsung, CMCC and Nokia.

Responsible to study the feature requirements for Enhancements, changes

           desired in the NAS-CP modules of the NAS layer, study the 3GPP Specifications

           in order to evaluate the validity of the customer request, suggest a design,

           implementation, test on Rational TRT using Unit and Integration Test Cases.

 

·                       OOSA recovery mechanism from Access Stratum to Non Access Stratum

           The OOSA coverage recovery timers and their algorithm that is generally there

in the AS was to be moved to NAS. Involved in the study to propose the initial

design, implement the algorithms and functionality in NAS.

 

·                       Implementation of the storage and access to EEPROM, for Poland’s PLAY

           Implementation, testing and validation of Write and Read mechanism for the AS

           and NAS to EEPROM through library initialization module.

           

Digibee Microsystems Pvt Ltd from 02-Jan-2006 to 21-Nov-2007.

 

Ø     IrDA Link Management Protocol, IrDA Information Access Service(IAS) and Information Access Protocol (IAP)

      Description     : The IAS in IRDA stack stores the local machines object information,

     each object contains attributes and values. The IAP provides set of procedure to access

      the remote IAS information whenever client makes request for it. When remote

      machine makes query for IAS information on that IAP act as server to the peer entity.

IrLMP makes it possible to support walk-up ad-hoc connections between devices.

     It implements following functionalities. 1. Discovery 2. Multiplexing of IrLAP link

     3.Link Management.

 

 

Ø     GPRS RLC/MAC Testing

     Description    : Writing conformance test cases for RLC/MAC by reading

      RLC/MAC 3GPP specification.

 

Ø     Buffer Pool Management for Protocol Stack

     Description        : The objective is develop Generic interface for the packet allocation

      and de-allocation. This provides zero memory copy concept for the protocol stacks.

      This framework is applies to data plane of the protocol stack.

 

Ø     GMM Network Simulator

      Description      : The GMM Network Simulator is GPRS mobility management layer

      that supports the mobility of the user terminal and provides services such as identifying

      location of user terminal, providing user identity confidentiality, registering the user         

      terminal to the network and provide connection management services to the upper layer

      on the network side.

 

Hewlett Packard from 22-Aug-2005 to 24-Dec 2005

 

Ø     Swan - Interactive

      Description        : Swani is worldwide standard account payable Application for

      invoice processing across HP. Swani provides a rich interface and application

      management utilities. Extreme programming is the software engineering approach

      followed in Swani programming.

Education

 

B.E. Computer Science 2005 – With 76% from P.D.A College of Engineering, Gulbarga, Karnataka

     Credentials

 

·  CEO recognition for the DSDS Customer Focus in World finals Business Improvement Competition-2010, Montreux Switzerland in ST-Ericsson.  

·  Team Award for Excellent contribution towards the first Release of Dual mode protocol stack development in NXP Semiconductor.

References

 

Will be furnished under request

 

Declaration

 

I hereby declare that above mentioned particulars are true and correct to the best of my knowledge.

Place: Bangalore                                   [Anand B Biradar]