Patents by Inventor Sudhir Ramakrishna

Sudhir Ramakrishna 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).

  • Patent number: 11974282
    Abstract: A method of user equipment (UE) in a wireless communication system. The method comprises receiving, from a base station (BS), a downlink signal including position information for orthogonal frequency division multiplexing (OFDM) symbols of a short physical uplink control channel (PUCCH), determining, based on the position information, a position of the OFDM symbols of the short PUCCH included in a slot, and transmitting, to the BS, the short PUCCH using the OFDM symbols based on the determined position.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 30, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Patent number: 11849463
    Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: December 19, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Thomas David Novlan, Boon Loong Ng, Sudhir Ramakrishna, Li Guo, Jianzhong Zhang
  • Publication number: 20230087900
    Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.
    Type: Application
    Filed: November 18, 2022
    Publication date: March 23, 2023
    Inventors: Young Han Nam, Boon Loong Ng, Yang Li, Sudhir Ramakrishna, Md. Saifur Rahman
  • Patent number: 11509355
    Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Han Nam, Boon Loong Ng, Yang Li, Sudhir Ramakrishna, Md. Saifur Rahman
  • Publication number: 20210368487
    Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.
    Type: Application
    Filed: August 6, 2021
    Publication date: November 25, 2021
    Inventors: Young-Han Nam, Thomas David Novlan, Boon Loong Ng, Sudhir Ramakrishna, Li Guo, Jianzhong Zhang
  • Publication number: 20210297115
    Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Young-Han Nam, Boon Loong Ng, Yang Li, Sudhir Ramakrishna, Md. Saifur Rahman
  • Patent number: 11089579
    Abstract: A user equipment (UE) in a wireless communication system. The UE comprises at least one processor configured to determine a first subcarrier spacing and a transceiver configured to transmit, to a base station (BS), random access signals generated with the first subcarrier spacing and receive a downlink control signaling comprising a physical (PHY) resource configuration that includes a second subcarrier spacing. The UE further comprises at least one processor configured to set the PHY resource configuration for at least one of uplink transmission or downlink reception.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: August 10, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Thomas David Novlan, Boon Loong Ng, Sudhir Ramakrishna, Li Guo, Jianzhong Zhang
  • Patent number: 11038557
    Abstract: A base station includes a controller configured to configure an MRS resource set comprising a group of MRS resources, each MRS resource comprising a set of MRS antenna ports. If at least two MRS antenna ports belong to a same MRS resource, then the at least two MRS antenna ports are quasi co-located with respect to a first set of QCL parameters, else if the at least two MRS antenna ports belong to a same MRS resource set, then the at least two MRS antenna ports are quasi co-located with respect to a second set of QCL parameters, and else the at least two MRS antenna ports are not quasi co-located with respect to either the first set or the second set of QCL parameters. The MRS is a CSI-RS for estimating a CSI and at least one of the first set and the second set of QCL parameters.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 15, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Boon Loong Ng, Yang Li, Sudhir Ramakrishna, Md. Saifur Rahman
  • Patent number: 10887143
    Abstract: A base station includes a controller configured to map initial access signals, each initial access signal corresponding to one of a plurality of transmit beams, to a subset or all of a plurality of predefined time locations in at least one periodicity, and a transmitter configured to transmit the mapped initial access signals to a UE and indicate OFDM symbols that are not mapped with the initial access signals in the one periodicity to the UE. A UE includes a transceiver configured to receive initial access signals mapped to a subset or all of time locations in one periodicity from a base station, the each initial access signal corresponding to one of a plurality of different beams, and a controller configured to perform an initial access to the base station and receive the indication of OFDM symbols that are not mapped with the initial access signals in the one periodicity.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Li Guo, Young-Han Loong Nam, Boon Loong Ng, Sudhir Ramakrishna, Yang Li
  • Publication number: 20200235721
    Abstract: A method of wireless communication includes receiving a plurality of parameter values at a user equipment (UE) using a first local oscillator (LO) frequency value, where the plurality of parameter values includes indications of a downlink frequency channel and an uplink frequency channel. The method further includes determining a second LO frequency value at the UE, where the second LO frequency value is determined using the indications of downlink and uplink frequency channels. The method further includes receiving downlink signals from an associated base station using the second LO frequency value.
    Type: Application
    Filed: April 2, 2020
    Publication date: July 23, 2020
    Inventors: Rakesh Taori, Farooq Khan, Robert Clark Daniels, Shadi Abu-Surra, Sudhir Ramakrishna
  • Publication number: 20200137751
    Abstract: A method of user equipment (UE) in a wireless communication system. The method comprises receiving, from a base station (BS), a downlink signal including position information for orthogonal frequency division multiplexing (OFDM) symbols of a short physical uplink control channel (PUCCH), determining, based on the position information, a position of the OFDM symbols of the short PUCCH included in a slot, and transmitting, to the BS, the short PUCCH using the OFDM symbols based on the determined position.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Patent number: 10637445
    Abstract: A method of wireless communication includes receiving a plurality of parameter values at a user equipment (UE) using a first local oscillator (LO) frequency value, where the plurality of parameter values includes indications of a downlink frequency channel and an uplink frequency channel. The method further includes determining a second LO frequency value at the UE, where the second LO frequency value is determined using the indications of downlink and uplink frequency channels. The method further includes receiving downlink signals from an associated base station using the second LO frequency value.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: April 28, 2020
    Assignee: Phazr, Inc.
    Inventors: Rakesh Taori, Farooq Khan, Robert Clark Daniels, Shadi Abu-Surra, Sudhir Ramakrishna
  • Patent number: 10609565
    Abstract: Methods and systems for channel mapping in a densely deployed network are disclosed. The system includes a node comprising a plurality of base stations configured to communicate with client devices in a wireless communication network, wherein transmission from the base stations to the client devices is conducted on a downlink (DL) frequency band and transmission from the client devices to the base stations is conducted on an uplink (UL) frequency band. The DL frequency band is different from the UL frequency band. DL and UL frequency pairs for the base stations are assigned according to a channel mapping scheme that determines DL and UL frequency pairs based on a plurality of channel parameters. The channel parameters include, for example, received signal strength indicator (RSSI), signal to noise (S/N) ratio, channel capacity, and bit error rate (BER).
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: March 31, 2020
    Assignee: Phazr, Inc.
    Inventors: Rakesh Taori, Shadi Abu-Surra, Farooq Khan, Eran Pisek, Sudhir Ramakrishna, Robert Clark Daniels
  • Patent number: 10575182
    Abstract: Methods and systems for channel mapping in a densely deployed network are disclosed. The system includes a node comprising a plurality of base stations configured to communicate with client devices in a wireless communication network, wherein transmission from the base stations to the client devices is conducted on a downlink (DL) frequency band and transmission from the client devices to the base stations is conducted on an uplink (UL) frequency band. The DL frequency band is different from the UL frequency band. DL and UL frequency pairs for the base stations are assigned according to a channel mapping scheme that determines DL and UL frequency pairs based on a plurality of channel parameters. The channel parameters include, for example, received signal strength indicator (RSSI), signal to noise (S/N) ratio, channel capacity, and bit error rate (BER).
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 25, 2020
    Assignee: Phazr, Inc.
    Inventors: Rakesh Taori, Shadi Abu-Surra, Farooq Khan, Eran Pisek, Sudhir Ramakrishna, Robert Clark Daniels
  • Patent number: 10524237
    Abstract: A method of user equipment (UE) in a wireless communication system. The method comprises receiving, from a base station (BS), a downlink signal including position information for orthogonal frequency division multiplexing (OFDM) symbols of a short physical uplink control channel (PUCCH), determining, based on the position information, a position of the OFDM symbols of the short PUCCH included in a slot, and transmitting, to the BS, the short PUCCH using the OFDM symbols based on the determined position.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Sudhir Ramakrishna, Li Guo, Boon Loong Ng
  • Publication number: 20190380041
    Abstract: Methods and systems for channel mapping in a densely deployed network are disclosed. The system includes a node comprising a plurality of base stations configured to communicate with client devices in a wireless communication network, wherein transmission from the base stations to the client devices is conducted on a downlink (DL) frequency band and transmission from the client devices to the base stations is conducted on an uplink (UL) frequency band. The DL frequency band is different from the UL frequency band. DL and UL frequency pairs for the base stations are assigned according to a channel mapping scheme that determines DL and UL frequency pairs based on a plurality of channel parameters. The channel parameters include, for example, received signal strength indicator (RSSI), signal to noise (S/N) ratio, channel capacity, and bit error rate (BER).
    Type: Application
    Filed: May 29, 2019
    Publication date: December 12, 2019
    Inventors: Rakesh Taori, Shadi Abu-Surra, Farooq Khan, Eran Pisek, Sudhir Ramakrishna, Robert Clark Daniels
  • Publication number: 20190356464
    Abstract: A method for wireless communication includes generating first and second digital baseband signal streams. The method further includes digitally up-converting the first digital baseband signal streams to a first digital intermediate frequency (IF) signal of frequency f1 and digitally up-converting the second digital baseband signal streams to a second digital intermediate frequency (IF) signal of frequency f2, wherein f1 is not equal to f2. The method also includes converting the first digital IF signal of frequency f1 to a first analog IF signal of frequency f1 and converting the second digital IF signal of frequency f1 to a second analog IF signal of frequency f2. The method also includes up-converting the first analog IF signal to a millimeter wave band signal. The method also includes transmitting the millimeter wave band signal and the second analog IF signal.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Inventors: Farooq Khan, Khurram Muhammad, Rakesh Taori, Sudhir Ramakrishna, Eran Pisek, Shadi Abu-Surra
  • Patent number: 10440688
    Abstract: A relay node capable of supporting wireless backhaul communication includes a controller configured to identify a first timing of a backhaul downlink (DL) transmission and a second timing of an access uplink (UL) transmission to be substantially aligned, and a transceiver configured to receive at least one first symbol in the backhaul DL transmission from an base station (BS), and receive at least second symbol in an access UL transmission from a user equipment (UE). The controller is further configured to substantially align a third timing of a backhaul uplink (UL) transmission and a fourth timing of an access downlink (DL) transmission, wherein the transceiver is further configured to transmit at least third symbol in a backhaul uplink (UL) transmission to the BS, and transmit at least fourth symbol in the access DL transmission to the UE.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: October 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sudhir Ramakrishna, Boon Loong Ng, Li Guo, Thomas David Novlan, Young-Han Nam, Sridhar Rajagopal, Jianzhong Zhang
  • Publication number: 20190200245
    Abstract: A method of determining a preferred location and orientation of a wireless broadband router includes measuring by the wireless broadband router a first received downlink signal strength corresponding to a first location and orientation and transmitting by the wireless broadband router the first received downlink signal strength. The method includes receiving a first score responsive to the first downlink signal strength. The method includes measuring by the wireless broadband router a second received downlink signal strength corresponding to a second location and orientation and transmitting by the wireless broadband router the second received downlink signal strength. The method includes receiving a second score responsive to the second received downlink signal strength. The method includes receiving a preferred location and orientation information based on the scores.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventors: Farooq Khan, Sudhir Ramakrishna, Rakesh Taori
  • Patent number: 10285170
    Abstract: A method of a user equipment (UE) in a wireless communication system. The method comprises receiving, from a base station (BS), a dynamic downlink control signal including sounding reference signal (SRS) resource and configuration information based on user pool scheduling information, wherein the UE is included in a user pool group determined by the user pool scheduling information. The method further comprises determining the SRS resource and configuration information included in the user pool scheduling information received by the dynamic downlink control signal and transmitting, to the BS, SRS based on the SRS resource and configuration information included in the user pool scheduling information.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: May 7, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Li Guo, Sudhir Ramakrishna