Upload
dominque23
View
923
Download
0
Embed Size (px)
Citation preview
Kourosh Parsa, Ph.D.Curriculum Vitae
Dr. Kourosh Parsa, the founder of Parsa Wireless, is an expert in the field of wireless communications with more than 30 papers and 14 issued and pending patents in the wireless field. Dr. Parsa spearheaded the innovation and standardization of Common Packet Channel Technology which is now part of the global 3GPP standard. He was also the chief architect of the WP-CDMA 3G RTT which was submitted to ITU in January of 1999. He also played a key role in the harmonization of the North American RTTs (WIMS W-CDMA and W-CDMA NA). The result was creation of a single RTT called WP-CDMA. Subsequently, Dr. Parsa played a leading role in merging the WP-CDMA into the ARIB and ETSI W-CDMA standard as part of his activities in 3GPP.
Wireless communications, W-CDMA, CDMA2000 and the Radio Access Network.
IEEE 802.11 and 802.16 series of standards
Mobile IP, VoIP, All IP infrastructure, Wireless Data, GSM, GPRS, EDGE
In depth knowledge on Radio Access Network
Wireless multimedia applications. Analog RF system design experience
Wireless Communications Systems Engineering
System Analysis, Simulation and modeling Engineering
System Performance and Research Engineering
Base-band algorithms experience Protocol Stack: CDMA Physical layer,
RF subsystem, MAC, RLC, RRC, TCP/IP, Streaming protocols
Standard systems engineering Radio network optimization
Year College or University Degree1990 City University of New York: Ph.D. Electrical Engineering
Year College or University Degree
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 1 of 20 PagesPrinted: 4/11/2023 - CT
Professional Summary
Expertise
Education
Kourosh Parsa, Ph.D.Curriculum Vitae
1987 City College of New York M.E. Electrical Engineering
Year College or University Degree1983 Queens College, CUNY B.A. Mathematics
From: 2002To: PresentOrganization: Parsa Wireless communications Title: Managing DirectorSummary: Technical and project manager: UMTS RF prototype design and
development courses Developed and taught 4 UMTS RF architecture, specifications and Design
courses in 2004 Provided consulting services on UMTS physical layer base-band
algorithms and system architecture (Base Node and UE) Developed and taught a course on IEEE 802.11. Provided consultation in
this area. Provided consulting services in the emerging wireless technologies such as
WiFi, WiMax, UMTS, EV-DO, CDMA2000. Developed and delivered UMTS RAN optimization, UMTS air interface,
GSM, GPRS, EDGE short courses Taught network design algorithms and modern wireless systems courses at
Iona College and Bridgeport universities. Organized and chaired two 3 day conferences on Wireless Technology
trends (Texas, New Jersey) Lectured on the topic of “wireless technology trends: past, present and
future of mobile communications” for IEEE meeting in CT and five universities in the past two years.
Developed a business relationship and partnerships with several companies in the technical training space.
Provided consultation on various wireless technologies such as UMTS, EDGE, GPRS, WiMax, WiFi.
Research interest: next generation wireless systems.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 2 of 20 PagesPrinted: 4/11/2023 - CT
Professional Experience
Kourosh Parsa, Ph.D.Curriculum Vitae
From: 2004To: PresentOrganization: Ortronics LegrandTitle: Senior Wireless Systems EngineerSummary: Functioning as the wireless systems engineer and project leader on a WiFi
dual radio Access Point prototype and product development project. Responsible for the final product design, development and release. Monitoring the 802.11N activities and specification development. Actively engaged inTR42 WLAN project
From: March 2001To: December 2001Organization: Golden Bridge TechnologyTitle: Executive VP TechnologySummary: Lead the standards team in generating technical contributions, set
directions for GBT’s standard activities in 3GPP. Lead the technical, marketing, standard, IP development and strategy as
well as IP licensing activities in GBT. Acted as the spokesperson for the company in technical and marketing
conferences. Lead a team to develop the operator and manufacturer marketing packages. Helped the development and implementation of new IP licensing models
and strategies. My team developed strategic partnership models with various sectors of the
wireless industry. Lead the licensing negotiation with several major manufacturers in a short
period of time. Extended the operator relationships and alliances around the 3GPRS
model. Wrote several technical and marketing papers and contributions. Hands-on approach to research and innovation.
From: November 1997To: March 2001Organization: Golden Bridge Technology
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 3 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
Title: VP of Systems Engineering/System Design GroupSummary: Project leader for the link level simulation of the W-CDMA physical layer
using MATLAB and SPW. This included algorithms for RAKE, channel estimation, Matched Filter operation, and other aspects of the modem architecture.
Acted as the project leader in multi-layer simulation of the CPCH system performance using OPNET.
Acted as GBT’s chief Standard Strategist and engineer in 3GPP global standardization body in this period.
Generated and wrote more than 100 contributions in a three year time-span. Most of the contributions were on the physical layer aspects of W-CDMA.
Participated in IEEE 802.11 standardization body. Contributed to the physical layer design of the IEEE 802.11 ASIC chip. Originated and co-invented the Common Packet channel technology and
lead the specifications of CPCH in 3GPP standard body. Co-inventor of over 10 issued patents.
Chief architect of WP-CDMA technology which became one of three 3G US RTTs submitted to ITU.
Championed the merger of this RTT into the global UMTS standard. Chief Architect of the Wireless Multimedia Messaging (WIMS) W-CDMA
RTT and specifications. Directed several research projects leading to creation and enhancement of
CPCH technology and WP-CDMA. Acted as Chairman of the Working Group TR 46.1.2 on WIMS W-CDMA
Common Air Interface Specification. Acted as the Chairman of Ad Hoc 14 of the WG1 of RAN in 3GPP. AH14
was responsible for packet mode of operation in W-CDMA. My most notable achievement was invention of the CPCH technology and
leading the process of having it accepted in the global 3GPP standard.
From: December 1994To: October 1997Organization: NYNEX (Bell Atlantic) Science & TechnologyTitle: Member of Technical Staff: Wireless & Broadband Access Technology LabSummary: Wireless System design, Analyst, simulations and modeling of the
wireless systems. designed and simulated an IS-95 based CDMA PCS system using MCAP. supported GSM and CDMA system planning tool development.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 4 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
generation of spectrum clearance guidelines for transition from AMPS to CDMA, white papers on AMPS spectrum clearance
CDMA PCS Design GSM Tool Development WLL CDMA design and Data over CDMA and CDPD
From: December 1992To: December 1994Organization: InterDigital Communications CorporationsTitle: Principal Engineer/Research GroupSummary: Systems engineer in the B-CDMA design, specification and standardization
Performed Link level simulation of W-CDMA MRC RAKE receiver over a Rayleigh fading channel using MATLAB.
Performed B-CDMA system capacity analysis and simulations based on random traffic in overlay and none-overlay scenarios.
designed and Specified Radio management functions and protocols such as handover and initial random access procedures for the B-CDMA system.
Generated many conference papers Contributor to creation of IS665 W-CDMA PCS standard in the JTC
forum. Represented InterDigital in the JTC forum and contributed to the
description and specification at the physical layer, data link layer as well as the network layer in the IS665 standard.
From: December 1990To: December 1992Organization: RAM Mobile Data (Cingular Mobile Data)Title: Manager, Data Systems EngineeringSummary: Mobile data Systems Engineering, modeling and simulation of the end-to-
end system. Performed Packet Radio System analysis, modeling and simulation for
capacity and network planning. Lead the Mobitex optimization effort. Developed simulation packages for system capacity and RF cell planning
using the OPNET package.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 5 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
From: May 1990To: December 1990Organization: SCS MobilcomTitle: Consulting EngineerSummary: Simulated a DS-CDMA spread spectrum system to characterize the
performance of such systems in multi-path fading environment using Matlab.
Used SPW (BOSS) for this simulation. This was primarily a link level simulation (Physical Layer)
From: February 1987To: December 1990Organization:Title: Adjunct ProfessorSummary: Taught Electrical Engineering and Communication Networking courses at City
College of New York in the E.E. Department. Taught a graduate computer architecture and networking course at Queens College of New York in the Computer Science Department. Taught EE course at New York Institute of Technology.
Patent analysis and mapping servicesConsulting services in patent litigation casesExpert witness services in the wireless systems cases.Material witness in a 3G patent litigation case
Expert Engagement:Law Firm: NACase Name: Agere SystemsServices Provided: Patent scrubbing and evaluation in the UMTS and CDMA2000 domainDisposition: Agere SystemsDate: October 2005- present
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 6 of 20 PagesPrinted: 4/11/2023 - CT
Litigation Support Experience
Kourosh Parsa, Ph.D.Curriculum Vitae
Expert Engagement:Law Firm:Case Name: Sasken Communications vs. 3G.comServices Provided: Expert WitnessDisposition:Date: February 2005- September 2005
Material witness:
GBT versus Nokia, Lucent, LG
Former Chairman of TR46.1 (WIMS W-CDMA) Chairman IEEE ComSoc chapter in CT, 2001-2004 Member IEEE, IEEE Communications Society Organized and chaired a Mobile Data Session in PIMRC '92 Technical Co-Chair of the 1995 IEEE International Wireless Communication Systems
Symposium “Wireless Trends in 21St. Century Patent analysis and mapping services Expert witness services in the wireless systems cases. Developed and taught UMTS RF specifications and Design (Mobile) – 5 day course -
2004 Developed and taught a 4 day RF Architectures and Design - 2004 Developed and participated in a 20 day hands-on UMTS RF design for Base Node – 2004 Developed and taught a 4-day UMTS Base Node RF architecture and specifications –
Dec 2003 Developed and taught a three day Broadband CDMA PCS systems and performance
Engineering course at Motorola, Florida (April 1994) Developed and taught a 4 day course on W-CDMA and IS95 System Design and
Performance Engineering for Whiting School of Engineering at Johns Hopkins University (1996).
Developed several customized short courses on third generation wireless systems. - Overview of Modern Wireless Systems,- Future global mobile information society: Evolution of 3G systems towards an all
IP architecture
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 7 of 20 PagesPrinted: 4/11/2023 - CT
Professional Affiliations, Achievements & Activities
Kourosh Parsa, Ph.D.Curriculum Vitae
- UMTS System Design and Dimensioning- Wireless Applications and Mobile Data Systems Engineering in 3G: A cross layer
and end-to-end optimization perspective.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 8 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
Koroush listed 10 patents, but they didn’t all match up with titles, etc. from PTO website. Added patents from the PTO site with abstracts for review, found 14 not 10. Please let us know which patents, if not all, are his. Thanks.
14 is OK. 14 is OK.
Patent Date Description6996155 2/7/2006 “Common packet channel”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
Patent Date Description6985511 1/10/2006 “Common packet channel with firm handoff”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 9 of 20 PagesPrinted: 4/11/2023 - CT
Patents & Publications
Kourosh Parsa, Ph.D.Curriculum Vitae
having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal, which includes, RS-power-control signals, transmitted in time, at increasing power levels. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, and detecting an RS-preamble signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data. The BS-spread-spectrum transmitter transmits either data or power-control information to the RS-spread-spectrum receiver.
Patent Date Description6757319 6/29/2004 “Closed loop power control for common downlink transport channels”
To increase capacity in a spread spectrum packet communication system, a closed loop power control (CLPC) is provided for a common/shared downlink transport channel, such as a Forward Access Channel (FACH) and Downlink Shared Channel (DSCH), by using an existing uplink Common Packet Channel (CPCH) mechanism. After an appropriate access phase and a collision detection phase, a mobile station sends its closed-loop power control information along with any packet data over the CPCH uplink channel. Concurrently, the base station (BS) begins its downlink transmission of data and control information to the mobile station (MS). The base station transmits the packet data through the common/shared downlink transport channel, and the power of that transmission is controlled in response to the control information sent by the MS. The power of the uplink transmission from the MS is controlled in response to the control
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 10 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
information sent by the BS, for example via a dedicated downlink channel (DCH).
Patent Date Description6717975 4/6/2004 “Common packet channel”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
Patent Date Description6643318 11/4/2003 “Hybrid DSMA/CDMA (digital sense multiple access/code division
multiple access) method with collision resolution for packet communications”A hybrid DSMA-CR/CDMA methodology provides efficient access to one of a group of common packet channels in a cell of a spread spectrum wireless communication network. The base station broadcasts status information as to the availability and/or available data rates for each common packet channel (CPCH) or group of CPCH channels. Each mobile station uses the status information to select an available channel and/or a channel with sufficient data rate. The mobile station then starts transmission of a series of access preambles, each of which contains a signature corresponding to the selected channel. The mobile
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 11 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
station transmits the preambles at increasing power levels. When the base station detects a preamble transmission, the base station responds with a corresponding acknowledgment. Upon receiving this acknowledgment, the mobile station preferably selects a collision detection (CD) signature and transmits a CD preamble containing that signature. If the base station receives more that one CD preamble, it selects one and responds by sending back a corresponding CD acknowledgement. In response, the mobile station begins to send its packet data along with any closed-loop power control information over the selected CPCH channel. If the MS detects a loss of the downlink channel, the MS halts its CPCH uplink transmission. Also, during a transmission of data, the mobile station that has successfully obtained access can piggy-back data packets one after another so long as it has packets ready to send, up to a maximum limit set by the network.
Patent Date Description6639936 10/28/2003 “Pre-data power control common packet channel”
A base station (BS) and a plurality of remote stations in a code-division-multiple access (CDMA) system employ spread-spectrum communication. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel uses a common chip-sequence signal. An RS-spread-spectrum receiver receives the broadcast common-synchronization channel, and the RS determines frame timing from the frame-timing signal. In response, the associated RS-spread-spectrum transmitter transmits an access burst signal, including RS-preamble signals, RS-power-control signals, and RS-pilot signals, respectively, transmitted in time, at increasing power levels. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, and detecting an RS-preamble signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 12 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
Patent Date Description6574267 6/3/2003 “Rach ramp-up acknowledgement”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) with a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver, and a plurality of remote stations. Each remote station (RS) has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The improvement includes the steps of transmitting from the BS-spread-spectrum transmitter, a broadcast common-synchronization channel. The broadcast common-synchronization channel has a common chip-sequence signal common to the plurality of remote stations, and a frame-timing signal. The improvement includes receiving at a first RS-spread-spectrum receiver the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, and transmitting from a first RS-spread-spectrum transmitter an access-burst signal. The access-burst signal has a plurality of segments, which have a plurality of power levels. At the BS-spread-spectrum receiver the access-burst signal is received at a detected-power level. In response to receiving the access-burst signal, the BS-spread-spectrum transmitter transmits to the first RS-spread-spectrum receiver an acknowledgment signal. The first RS-spread-spectrum receiver receives the acknowledgment signal, and in response to receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits to the BS-spread-spectrum receiver, a spread-spectrum signal having data.
Patent Date Description6606341 8/12/2003 “Common packet channel with firm handoff”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 13 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal, which includes, RS-power-control signals, transmitted in time, at increasing power levels. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, and detecting an RS-preamble signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data. The BS-spread-spectrum transmitter transmits either data or power-control information to the RS-spread-spectrum receiver
Patent Date Description6507601 1/14/2003 “Collision avoidance”
A code-division-multiple-access (CDMA) system provides a collision avoidance mechanism for packet communications. When mobile stations attempt to establish links with a base station, the base station selects one mobile station to transmit data over an intended uplink channel. The base station transmits a predetermined sequence, during the first frame of the data transmission over the downlink control channel that corresponds to the intended uplink channel. If several mobile stations detect or mis-perceive successful access attempts, those stations begin data transmissions via respective desired uplink channels. At the same time, the mobile stations listen for the known sequence over the various corresponding downlink channels. Upon successful detection of the known sequence, one mobile station continues transmission of its data over the intended channel. However, any contending mobile station that does not detect the known sequence on the appropriate downlink channel immediately stops its data transmission.
Patent Date Description6480525 11/12/2002 “Second level collision resolution for packet data communications”
In a code-division-multiple-access (CDMA) system employing
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 14 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
spread-spectrum modulation, mobile stations initially seek access to a selected one of two or more groups of common packet channels (CPCHs) serviced through a base station. A second order collision resolution phase, conducted between the base stations and contending mobile stations, serves to allocate one or more available channels from the selected group of channels among the contending mobile stations. In the collision resolution phase, each mobile station randomly selects a collision detection (CD) signature and sends that signature in a CD preamble. For each available channel in the group, the base station assigns one of the mobile stations. For each assigned mobile station, the base station transmits a CD acknowledgement that corresponds to the CD preamble of the assigned mobile station and identifies the available channel assigned to that mobile station.
Patent Date Description6389056 5/14/2002 Pre-data power control common packet channel
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access burst signal, which includes a plurality of RS-preamble signals, RS-power-control signals, and RS-pilot signals, respectively, transmitted in time, at increasing power levels. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, and detecting an RS-preamble signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 15 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
Patent Date Description6324207 11/27/2002 “Handoff with closed-loop power control”
In a cellular spread-spectrum communications network, a system and method for handing off a remote station from a source-base station to a target-base station without loss of data. The remote station receives a first spread-spectrum signal having a first signal quality from the source-base station and transmits data to the source-base station at a first data rate and a first power level. Responsive to monitoring the first signal quality and comparing the first signal quality to a plurality of signal qualities of a respective plurality of received-spread-spectrum signals, the remote station initiates handoff when any of a number of predetermined criteria are met. Upon initiating handoff to the target-base station, the remote station stores the data that would otherwise have been transmitted. Once handoff is complete, the remote station transmits the stored data to the target-base station at a second data rate and a second power level, with the second data rate greater than the first data rate and the second power level greater than the first power level. Once the stored data has been transmitted, the remote station transmits data to the target-base station at a data rate and power level comparable to the first data rate and the first power level.
Patent Date Description6169759 1/2/2001 “Common packet channel”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 16 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
transmits an access-burst signal. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
Patent Date Description6301286 10/9/2001 “Common packet channel”
An improvement to a code-division-multiple-access (CDMA) system employing spread-spectrum modulation, with the CDMA system having a base station (BS) and a plurality of remote stations. The base station has a BS-spread-spectrum transmitter and a BS-spread-spectrum receiver. A remote station has an RS-spread-spectrum transmitter and an RS-spread-spectrum receiver. The BS transmitter transmits a broadcast common-synchronization channel, which includes a frame-timing signal. The broadcast common-synchronization channel has a common chip-sequence signal, which is common to the plurality of remote stations. In response to the RS-spread-spectrum receiver receiving the broadcast common-synchronization channel, and determining frame timing from the frame-timing signal, an RS-spread-spectrum transmitter transmits an access-burst signal. The BS-spread-spectrum transmitter, responsive to the BS-spread-spectrum receiver receiving the access-burst signal, transmits an acknowledgment signal. In response to the first RS-spread-spectrum receiver receiving the acknowledgment signal, the first RS-spread-spectrum transmitter transmits a spread-spectrum signal having data.
Publications
30 technical papers in the wireless field. Originator and co-inventor of the Common Packet Channel Technology (CPCH) concept.
CPCH is part of the 3rd generation global standard called 3GPP. Developed and taught short industry courses in wireless communications. More than 30 marketing presentations and technical tutorials on UMTS in the past two years.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 17 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
More than 100 contributions under my initiative in the 3GPP Standard. Participated and contributed to IEEE 802.11 standardization process. Involved in analysis, simulations and modeling of wireless communications systems at the
multiple-layer, multiple-cell and multiple-network levels.
1. Parsa, Kourosh, Saied Kazeminejad, Saeed Ghassemzadeh, “Systems Engineering of Packet Data Services in UMTS,” ICC, 2001
2. Parsa, Kourosh, “An overview of CPCH, an optimum wireless internet mechanism in 3GPP W-CDMA system,” Wireless Design and Development, 2001
3. Parsa, Kourosh, KazemiNejad, Saied, “Evolution Towards 3G: GPRS, EDGE, UMTS with 3GPRS: North American Operator’s perspective,” GPRS conference Rome, 2001
4. Parsa, Kourosh, “An overview of CPCH, an optimum wireless Internet mechanism in 3GPP W-CDMA system and comparison of various Non Real Time Data deployment options,” PIMRC, 2000
5. Parsa, Kourosh, Inhoyk Cha, Saied Kazeminejad, Nader Bolourchi, “An overview of CPCH in 3GPP WCDMA system: Method, Performance, Benefits and Applications,” InterOP 2000, Las Vegas
6. Parsa, Kourosh, “Power consumption of 3G Packet Data Terminals in UMTS W-CDMA system,” ITU Telecom Asia 2000, Hong Kong
7. Parsa, Kourosh, “Common Packet Channel (CPCH): The optimum wireless Internet mechanism in W-CDMA,” submitted to IEE conference on 3G, 2000
8. Parsa, Kourosh, “ Circuit Mode versus Packet Mode transfers for bursty packets in W-CDMA systems,” 3GPP RAN, March 1999
9. Parsa, Kourosh, “WP-CDMA Radio Access Technology: Optimization of the Common Air Interface for IP Access, Packet Data and Multi-media Applications,” IEEE Sarnoff Symposium on wired and wireless communications, March 1999
10. Ghassemzadeh, Saeed (AT&T), Efthymoglou, George (Cadence Design Systems), Parsa, Kourosh (GBT), Boccuzzi, Joe (Cadence Design Systems), Sherman, Matthew (AT&T), Kanterakis, Emanuel (GBT), Bowen, Donald (AT&T), “On The Performance of Multi-Code CDMA Systems: A Simulation,” IEEE Sarnoff Symposium on wired and wireless communications, March 1999
11. Davidovici, Sorin, Kanterakis, Emmanuel G., Milstein, Laurence, Parsa, Kourosh, “Enabling Technologies for Next Generation W-CDMA Systems,” IEEE Sarnoff Symposium on wired and wireless communications, March 1999
12. Parsa, Kourosh, “Throughput Delay analysis of Common Packet Channel for 3G W-CDMA system,” IEEE USDS Conference on wireless technology, March 1999
13. Schilling, D.L., Bowen, Don, Parsa, Kourosh, Sardonic, Joe, “Wireless Multimedia and Messaging Services (WIMS),”Sophia Antipolice, France, ETSI Workshop on UTRA concept, presented on March 4-6, 1998
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 18 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
14. Parsa, Kourosh, “Distinguishing features of Wideband Packet CDMA Technology for third Generation wireless systems” ITU Workshop on 3G RTTs, November 1998
15. Parsa, Kourosh, “A comparative Study of CDPD and Data over CDMA,” NYNEX Science and Technology Technical Memorandum, January 1997
16. Parsa, Kourosh, “B-CDMA Overlay Forward and Reverse Link Capacity Based on Random Traffic and a new Call Blocking Model,” Globcom 1996
17. Parsa, Kourosh, “Generic CDMA PCS Design for a Suburban Morphology,” Internal Technical Memorandum at NYNEX Science & Technology, January 20, 1996
18. Parsa, Kourosh, Zadeh, Saeed, “B-CDMA Overlay Forward Link and Reverse Link Capacity Based on Random traffic and a new CDMA Call Blocking Model,” Globecom 95 Proceedings, Singapore
19. Parsa, Kourosh, “Capacity comparison of Various Bandwidth DS-CDMA wireless systems,” IEEE International Wireless Communication Systems Symposium in Long Island (NY), 1995
20. Schilling, D.L., Parsa, Kourosh, Zadeh, Saeed, Zion Hadad, “B-CDMA Overlay,” International Journal of Wireless Information Networks, Vol. II, 1995
21. Schilling, D.L., Parsa, Kourosh, et al., “Broadband CDMA Overlay,” ICCT, Shanghai, China, June 1994
22. Ghassemzadeh, Saeed, Schilling, D.L., Parsa, Kourosh, et al., “Multipath Fading Statistics of a DS-CDMA Signal at 2 GHz, in Microcellular and Indoor Environments,” New Jersey, Milicom 1994
23. Parsa, Kourosh, “Proposed B-CDMA PCS Signaling and Protocols Standard,” Joint Technical Committee (JTC), February 1994
24. Parsa, Kourosh, “Mobitex Mobile Data Packet Network,” PIMRC Conference, Boston, MA, October 1992
25. Parsa, Kourosh, Schilling, D.L., “Phase Synchronization of MPSK Signals Received from Meteor Burst Channels.” ICC Conference, Denver, CO, June 1991
26. Parsa, Kourosh, Schilling, D.L., “Phase Jitter Characterization of the Meteor Burst Channels.” Milicom Conference, McLean, Virginia, November 1991
27. Kourosh Parsa, “Mobile technology Trends”, Wireless Technology Trends conference, November 2002, Austin, Texas28. Kourosh Parsa, “Past, present, future of mobile technology”, Wireless 3T, March 2003, New Jersey29. Kourosh Parsa, “3G and beyond”, MRA international conference, October 2005, Alexandria, MD30. Kourosh Parsa, “Comparison of wireless technologies”, Wireless 3T, March 2004, New Jersey
Consulting and Course Development History
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 19 of 20 PagesPrinted: 4/11/2023 - CT
Kourosh Parsa, Ph.D.Curriculum Vitae
Developed and taught UMTS RF specifications and Design (Mobile) – 5 day course - 2004 Developed and taught a 4 day RF Architectures and Design - 2004 Developed and participated in a 20 day hands-on UMTS RF design for Base Node – 2004 Developed and taught a 4-day UMTS Base Node RF architecture and specifications – Dec
2003 Developed and taught a three day Broadband CDMA PCS systems and performance
Engineering course at Motorola, Florida (April 1994). Developed and taught a 4 day course on W-CDMA and IS95 System Design and
Performance Engineering for Whiting School of Engineering at Johns Hopkins University (1996).
Developed several customized short courses on third generation wireless systems. Overview of Modern Wireless Systems, Future global mobile information society: Evolution of 3G systems towards an all IP
architecture UMTS System Design and Dimensioning Wireless Applications and Mobile Data Systems Engineering in 3G: A cross layer and end-
to-end optimization perspective.
C.V. Provided by National Expert Witness Network, LLC866-873-7890
Page 20 of 20 PagesPrinted: 4/11/2023 - CT