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Changsoo Koo Phones & Addresses

  • 281 Altessa Blvd, Huntington Station, NY 11747
  • Melville, NY
  • East Northport, NY

Publications

Us Patents

Uplink Control Data Transmission

US Patent:
20110243066, Oct 6, 2011
Filed:
Oct 1, 2010
Appl. No.:
12/895900
Inventors:
Shahrokh Nayeb Nazar - Sainte-Julie, CA
Kyle Jung-Lin Pan - Smithtown NY, US
Robert L. Olesen - Huntington NY, US
Ghyslain Pelletier - Laval, CA
Marian Rudolf - Montreal, CA
Paul Marinier - Brossard, CA
Charles A Dennean - Melville NY, US
Stephen G. Dick - Nesconset NY, US
Allan Y. Tsai - Boonton NJ, US
Christopher Cave - Dollar-des-Ormeaux, CA
Changsoo Koo - Melville NY, US
Assignee:
InterDigital Patent Holdings, Inc. - Wilmington DE
International Classification:
H04W 4/00
US Classification:
370328
Abstract:
Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Determination Of Carriers And Multiplexing For Uplink Control Information Transmission

US Patent:
20120113831, May 10, 2012
Filed:
Apr 29, 2011
Appl. No.:
13/098381
Inventors:
Ghyslain Pelletier - Laval, CA
Paul Marinier - Brossard, CA
Shahrokh Nayeb Nazar - Sainte-Julie, CA
Marian Rudolf - Montreal, CA
Robert L. Olesen - Huntington NY, US
Kyle Jung-Lin Pan - Smithtown NY, US
Allan Y. Tsai - Boonton NJ, US
Mihaela C. Beluri - Huntington NY, US
Changsoo Koo - Melville NY, US
John W. Haim - Baldwin NY, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 24/00
H04L 12/26
H04W 72/04
US Classification:
370252, 370329
Abstract:
Embodiments contemplate methods and devices that may select uplink (UL) transmission resources for transmitting uplink control information (UCI). A determination may be made that UCI should be transmitted. A physical channel resource for transmission of the UCI may be selected and a wireless transmit/receive unit (WRTU) may transmit the UCI over a physical uplink channel capable of supporting multiple component carriers using the selected physical channel resource. The selection of the physical channel resource may include at least one of: selecting a pre-determined UL component carrier (CC) for uplink transmission on a physical uplink control shared channel (PUSCH) upon a PUSCH resource being available in a subframe, or, selecting a pre-determined UL CC for uplink transmission on a physical uplink control channel (PUCCH) capable of UCI transmission in the subframe upon a PUSCH resource not being available in the subframe.

Flexible Bandwidth Operation In Wireless Systems

US Patent:
20130176952, Jul 11, 2013
Filed:
Aug 10, 2012
Appl. No.:
13/571656
Inventors:
Changsoo Koo - Melville NY, US
Ghyslain Pelletier - Laval, CA
Marian Rudolf - Montreal, CA
Nobuyuki Tamaki - Melville NY, US
Allan Y. Tsai - Boonton NJ, US
Pouriya Sadeghi - Verdun, CA
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 72/04
US Classification:
370329
Abstract:
Systems, methods, and instrumentalities are disclosed for downlink resource allocation associated with a shared frequency band. A WTRU may receive resource allocation information associated with a component carrier and at least one carrier segment. The component carrier and the least one carrier segment may each comprise a plurality of resource block groups (RBG). At least two bitmaps may be associated with the resource allocation information. A size of a resource block group (RBG) of the component carrier and the at least one carrier segment may be based on a combined number of resource blocks (RB) of the component carrier and the one or more carrier segments divided by a 3GPP Rel-8/Rel-10 RBG size of the component carrier. The WTRU may determine at least one RBG allocated to the WTRU using the resource allocation information and may receive and decode the at least one RBG allocated to the WTRU.

Systems And/Or Methods For Providing Epdcch In A Multiple Carrier Based And/Or Quasi-Collated Network

US Patent:
20130194931, Aug 1, 2013
Filed:
Jan 27, 2013
Appl. No.:
13/751114
Inventors:
Changsoo Koo - Melville NY, US
Marian Rudolf - Montreal, CA
Fengjun Xi - Huntington Station NY, US
Ananth Kini - Philadelphia PA, US
Seyed Mohsen Hosseinian - East Northport NY, US
Paul Marinier - Brossard, CA
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 72/04
US Classification:
370241, 370329
Abstract:
ePDCCH may be provided. For example, a WTRU may receive a configuration for monitoring an ePDCCH resource. Based on the configuration, the WTRU may be configured to monitor and may monitor the ePDCCH resource on a particular subframe. Additionally, a WTRU may derive an aggregation level for a subframe associated with an aggregation level number N. The WTRU may transmit or monitor an ePDCCH using the aggregation level associated with the Nfor the subframe. A WTRU may also receive a reference signal. The WTRU may then determine the type of reference signal received. The WTRU may perform a demodulation of the PDSCH or ePDCCH using a demodulation timing based on the determined type. The ePDCCH or PDSCH may also be monitored or received by identifying a demodulation reference timing implicitly based on a location of one or more ePDCCH resources where the WTRU may receive DCI.

Reference Signal Configuration For Extension Carriers And Carrier Segments

US Patent:
20130215823, Aug 22, 2013
Filed:
Aug 10, 2012
Appl. No.:
13/571583
Inventors:
Changsoo Koo - Melville NY, US
Fengjun Xi - Huntington Station NY, US
Moon-il Lee - Farmingdale NY, US
Ghyslain Pelletier - Laval, CA
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 8/30
US Classification:
370328
Abstract:
Reference signals configured for use with extension carriers and/or carrier segments are described. Reference signals for extension carriers and/or carrier segments may include demodulation reference signals (e.g., user equipment-specific reference signals), cell-specific reference signals, and channel-state information reference signals. Methods, systems and apparatuses for configuring extension carriers and/or carrier segments with one or more of the reference signals (e.g., positioning one or more reference signal symbols in extension carriers and/or carrier segments) are described.

Multiplexing Uplink L1/L2 Control And Data

US Patent:
20110205981, Aug 25, 2011
Filed:
Aug 11, 2010
Appl. No.:
12/854260
Inventors:
Changsoo Koo - Melville NY, US
Kyle Jung-Lin Pan - Smithtown NY, US
Robert L. Olesen - Huntington NY, US
Shahrokh Nayeb Nazar - Sainte-Julie, CA
Marian Rudolf - Montreal, CA
Paul Marinier - Brossard, CA
International Classification:
H04W 72/12
US Classification:
370329
Abstract:
Methods and systems for transmitting scheduling requests in an LTE Advanced system are disclosed. Scheduling requests may be superimposed on HARQ ACK/NACK by multiplying the HARQ ACK/NACK by a value. Alternatively, scheduling requests may be channel-coded and multiplexed with other uplink control information. Scheduling requests can also be superimposed on reference signals by multiplying a reference signal by a value or by modulating a reference signal with a cyclic shift. Scheduling requests may also be jointly coded with HARQ ACK/NACK prior to transmission. Alternatively, ACK/NACK responses may be transmitted on assigned ACK/NACK PUCCH resources for a negative scheduling request transmission and on assigned scheduling request PUCCH resources for a positive scheduling request. Various collision handling mechanisms are also disclosed.

Method And Apparatus For Implementing Space Frequency Block Coding In An Orthogonal Frequency Division Multiplexing Wireless Communication System

US Patent:
20170163382, Jun 8, 2017
Filed:
Feb 15, 2017
Appl. No.:
15/433011
Inventors:
- Wilmington DE, US
Robert L. Olesen - Huntington NY, US
Aykut Bultan - Santa Clara CA, US
Eldad M. Zeira - Huntington NY, US
Changsoo Koo - Melville NY, US
Fatih M. Ozluturk - Sands Point NY, US
Yuejin Huang - Coram NY, US
Kalpendu R. Pasad - Cupertino CA, US
Assignee:
INTERDIGITAL TECHNOLOGY CORPORATION - Wilmington DE
International Classification:
H04L 1/06
H04B 7/06
Abstract:
The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.

Uplink Control Data Transmission

US Patent:
20170013612, Jan 12, 2017
Filed:
Sep 19, 2016
Appl. No.:
15/268838
Inventors:
- Wilmington DE, US
Kyle Jung-Lin Pan - Saint James NY, US
Robert L. Olesen - Huntington NY, US
Ghyslain Pelletier - Montreal, CA
Marian Rudolf - Montreal, CA
Paul Marinier - Brossard, CA
Charles A. Dennean - Melville NY, US
Stephen G. Dick - Nesconset NY, US
Allan Y. Tsai - Boonton NJ, US
Christopher R. Cave - Dollard-des-Ormeaux, CA
Changsoo Koo - Melville NY, US
Assignee:
INTERDIGITAL PATENT HOLDINGS, INC. - Wilmington DE
International Classification:
H04W 72/04
H04L 1/00
H04L 1/18
H04L 5/00
Abstract:
Methods and systems for transmitting uplink control information and feed back are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.
Changsoo Koo from Melville, NY Get Report