Patents by Inventor Kalpendu R. Pasad
Kalpendu R. Pasad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220386218Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation, map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: ApplicationFiled: August 11, 2022Publication date: December 1, 2022Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Patent number: 11419036Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of abovementioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: GrantFiled: April 17, 2020Date of Patent: August 16, 2022Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Publication number: 20200245220Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of abovementioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: ApplicationFiled: April 17, 2020Publication date: July 30, 2020Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Patent number: 10660011Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: GrantFiled: June 29, 2017Date of Patent: May 19, 2020Assignee: InterDigital Technology CorporationInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Patent number: 10630427Abstract: 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. A wireless transmit/receive unit (WTRU) including a transceiver and a processor is configured to receive, via the transceiver, an orthogonal frequency division multiplexing (OFDM) signal, wherein the OFDM signal comprises a channel coded data stream that was space frequency block coding (SFBC) encoded such that the SFBC encoding was performed using a plurality of pairs of OFDM sub-carriers. The processor is further configured to decode the OFDM signal.Type: GrantFiled: December 28, 2017Date of Patent: April 21, 2020Assignee: InterDigital Technology CorporationInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Chang-Soo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Patent number: 10178693Abstract: A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. The WTRU detects a format of control information in at least one control channel element (CCE) of a common area in a control portion of a downlink transmission. The control information indicates a resource allocation in a data portion of the downlink transmission. The WTRU recovers a random access response assigned to the WTRU from the indicated resource allocation of the data portion on a condition that the at least one CCE has a random access radio network terminal identifier (RA-RNTI) assigned to the WTRU.Type: GrantFiled: July 3, 2017Date of Patent: January 8, 2019Assignee: InterDigital Patent Holdings, Inc.Inventors: Kalpendu R Pasad, Shankar Somasundaram, Jin Wang
-
Publication number: 20180205500Abstract: 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.Type: ApplicationFiled: December 28, 2017Publication date: July 19, 2018Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Chang-Soo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Patent number: 9887808Abstract: 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.Type: GrantFiled: February 15, 2017Date of Patent: February 6, 2018Assignee: InterDigital Technology CorporationInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Publication number: 20170303183Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: ApplicationFiled: June 29, 2017Publication date: October 19, 2017Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Publication number: 20170303310Abstract: A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. The WTRU detects a format of control information in at least one control channel element (CCE) of a common area in a control portion of a downlink transmission. The control information indicates a resource allocation in a data portion of the downlink transmission. The WTRU recovers a random access response assigned to the WTRU from the indicated resource allocation of the data portion on a condition that the at least one CCE has a random access radio network terminal identifier (RA-RNTI) assigned to the WTRU.Type: ApplicationFiled: July 3, 2017Publication date: October 19, 2017Inventors: Kalpendu R. Pasad, Shankar Somasundaram, Jin Wang
-
Patent number: 9756550Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: GrantFiled: February 13, 2015Date of Patent: September 5, 2017Assignee: InterDigital Technology CorporationInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
-
Patent number: 9730244Abstract: A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. The WTRU detects a format of control information in at least one control channel element (CCE) of a common area in a control portion of a downlink transmission. The control information indicates a resource allocation in a data portion of the downlink transmission. The WTRU recovers a random access response assigned to the WTRU from the indicated resource allocation of the data portion on a condition that the at least one CCE has a random access radio network terminal identifier (RA-RNTI) assigned to the WTRU.Type: GrantFiled: December 11, 2015Date of Patent: August 8, 2017Assignee: InterDigital Patent Holdings, Inc.Inventors: Kalpendu R. Pasad, Shankar Somasundaram, Jin Wang
-
Publication number: 20170163382Abstract: 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.Type: ApplicationFiled: February 15, 2017Publication date: June 8, 2017Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Patent number: 9608772Abstract: 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.Type: GrantFiled: March 4, 2016Date of Patent: March 28, 2017Assignee: InterDigital Technology CorporationInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Publication number: 20160191208Abstract: 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.Type: ApplicationFiled: March 4, 2016Publication date: June 30, 2016Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Publication number: 20160113033Abstract: A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. The WTRU detects a format of control information in at least one control channel element (CCE) of a common area in a control portion of a downlink transmission. The control information indicates a resource allocation in a data portion of the downlink transmission. The WTRU recovers a random access response assigned to the WTRU from the indicated resource allocation of the data portion on a condition that the at least one CCE has a random access radio network terminal identifier (RA-RNTI) assigned to the WTRU.Type: ApplicationFiled: December 11, 2015Publication date: April 21, 2016Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Kalpendu R. Pasad, Shankar Somasundaram, Jin Wang
-
Patent number: 9306702Abstract: 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.Type: GrantFiled: April 24, 2015Date of Patent: April 5, 2016Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Fatih M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Patent number: 9276712Abstract: A method and apparatus for supporting a random access using a random access channel (RACH) are disclosed. The WTRU detects a format of control information in at least one control channel element (CCE) of a common area in a control portion of a downlink transmission. The control information indicates a resource allocation in a data portion of the downlink transmission. The WTRU recovers a random access response assigned to the WTRU from the indicated resource allocation of the data portion on a condition that the at least one CCE has a random access radio network terminal identifier (RA-RNTI) assigned to the WTRU.Type: GrantFiled: November 11, 2013Date of Patent: March 1, 2016Assignee: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Kalpendu R. Pasad, Shankar Somasundaram, Jin Wang
-
Publication number: 20150236815Abstract: 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.Type: ApplicationFiled: April 24, 2015Publication date: August 20, 2015Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Jaeyoung Kwak, Robert L. Olesen, Aykut Bultan, Eldad M. Zeira, Changsoo Koo, Faith M. Ozluturk, Yuejin Huang, Kalpendu R. Pasad
-
Publication number: 20150163722Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK), and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.Type: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Kalpendu R. Pasad, Sung-Hyuk Shin, Mihaella C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim