Patents by Inventor Hari Sankar

Hari Sankar 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: 20230081031
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an AMF may receive, from a user equipment (UE), a communication associated with a request for an identifier. The AMF may transmit, to the UE, the identifier, wherein the identifier is based at least in part on a synchronization signal block (SSB) periodicity and a number of paging frames per discontinuous reception (DRX) cycle. Numerous other aspects are described.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 16, 2023
    Inventors: Peter Pui Lok ANG, Alexei Yurievitch GOROKHOV, Hari SANKAR, Jafar MOHSENI, Huilin XU, Linhai HE, Miguel GRIOT, Peter GAAL, Carsten Aagaard PEDERSEN
  • Patent number: 11601961
    Abstract: Methods, systems, and devices for wireless communications are described. A base station may implement cross-carrier scheduling. A user equipment (UE) may identify a minimum scheduling delay and may receive a downlink grant on a first CC. The UE may further identify the slot in which a downlink data transmission corresponding to the downlink grant will be received, and may identify the slot such that the minimum scheduling delay is satisfied. The UE may the receive the downlink data transmission, as indicated in the downlink grant, in the identified slot. In some examples, the UE and the base station may alternate between a long minimum scheduling delay and a short minimum scheduling delay. In some examples, the UE and the base station may alternate between a cross-carrier mode, and a self-scheduling mode.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 7, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Pui Lok Ang, Peter Gaal, Alexei Yurievitch Gorokhov, Tingfang Ji, Brian Clarke Banister, Wanshi Chen, Joseph Binamira Soriaga, Huilin Xu, John Edward Smee, Heechoon Lee, Hari Sankar
  • Publication number: 20230055870
    Abstract: The present disclosure relates to methods and devices for wireless communication including an apparatus, e.g., a UE and/or a base station. The apparatus may measure a RSRP of a CRS for each of a plurality of neighboring cells. The apparatus may also calculate an interference strength of each of the plurality of neighboring cells based on the RSRP measurement of the CRS for each of the plurality of neighboring cells. Additionally, the apparatus may compare a PDSCH demodulation performance of the UE based on rate matching for a CRS offset associated with each of the plurality of neighboring cells with the PDSCH demodulation performance of the UE based on skipping the rate matching for the CRS offset. The apparatus may also transmit a request for the rate matching or skipping the rate matching for the CRS offset based on the comparison of the PDSCH demodulation performance of the UE.
    Type: Application
    Filed: August 23, 2021
    Publication date: February 23, 2023
    Inventors: Jae Ho RYU, Hari SANKAR, Alexei Yurievitch GOROKHOV, Hobin KIM
  • Publication number: 20230048970
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network node, an indication of a physical downlink control channel (PDCCH) processing unit (PPU) limit associated with the UE. The UE may receive configurations for a plurality of search space sets, wherein the plurality of search space sets includes one or more linked pairs of search space sets with linked PDCCH candidates for PDCCH repetition. The configurations of the one or more linked pairs of search space sets may be based at least in part on the PPU limit associated with the UE. Numerous other aspects are described.
    Type: Application
    Filed: August 3, 2022
    Publication date: February 16, 2023
    Inventors: Mostafa KHOSHNEVISAN, Hari SANKAR, Jae Ho RYU, Hobin KIM
  • Publication number: 20230033461
    Abstract: Methods, systems, and devices for wireless communications are described that support overlapping physical downlink control channel (PDCCH) candidate thresholds. In some examples, a user equipment (UE) may determine, for each subcarrier spacing (SCS) configuration of a set of SCS configurations, a threshold number of overlapping PDCCH candidates within a time interval. The UE may receive, from a base station, signaling indicating one or more PDCCH monitoring configurations. In some examples, the UE may monitor the PDCCH for control information according to the one or more PDCCH monitoring configurations and a number of overlapping PDCCH candidates, where the number of overlapping PDCCH candidates may satisfy (e.g., be less than or equal to) the threshold number of overlapping PDCCH candidates.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 2, 2023
    Inventors: Mostafa Khoshnevisan, Jae Ho Ryu, Hari Sankar, Hobin Kim
  • Patent number: 11570777
    Abstract: Methods, systems, and devices for wireless communications are described Techniques described may be utilized to avoid errors caused by resource allocation calculations, which may be indicated via higher layer signaling and/or determined within DCI. A base station may transmit downlink control information indicating resource allocation types to avoid errors. In other cases, the UE and/or base station may designate a particular resource block group size to avoid the potential errors. The UE and/or base station may calculate a number of resource blocks groups for a bandwidth part and allocate the size of the resource block group based on the calculation. The UE and/or base station may conduct a comparison between a bandwidth part size and a resource block group size to determine whether to designate a different resource block group size to avoid the errors. Similar techniques may be utilized in allocating resources for precoding resource block groups.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: January 31, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Gabi Sarkis, Navaneet Reddy Danda, Hobin Kim, Hari Sankar, Peter Pui Lok Ang, Joseph Binamira Soriaga
  • Patent number: 11563535
    Abstract: Certain aspects of the present disclosure provide techniques for power savings for reduced capability devices. A method that may be performed by a user equipment (UE) includes receiving a shared bandwidth part (BWP) configuration and a group common BWP configuration. The group common BWP configuration indicates a group common BWP shared by a group of UEs, including the UE, having one or more common capabilities or a common UE type. The method includes communicating using the group common BWP based on the group common BWP configuration.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: January 24, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Lei, Qunfeng He, Muhammad Nazmul Islam, Linhai He, Peter Gaal, Hari Sankar, Carsten Aagaard Pedersen, Murali Menon, Alexei Yurievitch Gorokhov
  • Publication number: 20230014069
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may update a noise estimation (e.g., a noise covariance matrix, a log likelihood ratio (LLR) scaling, or both) for communications with a serving base station to account for interference from a neighboring base station operating according to a different radio access technology (RAT). For example, the UE may identify a transmission status of a base station operating according to a first RAT, such as long term evolution (LTE), that shares a radio frequency spectrum with a serving base station operating according to a second RAT, such as new radio (NR). The UE may measure the interference from the LTE base station and may update a noise estimation according to the measured interference. The UE and the serving base station may communicate based on the updated noise estimation.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 19, 2023
    Inventors: Reneeta Sara Isaac, Shashidhar Vummintala, Andrea Garavaglia, Ashok Mantravadi, Hari Sankar, Alexei Yurievitch Gorokhov, Hobin Kim, Jae Won Yoo
  • Patent number: 11533128
    Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching control channels using polar codes. An exemplary method generally includes encoding a stream of bits using a polar code, determining a size of a circular buffer for storing the encoded stream of bits based, at least in part, on a minimum supported code rate and a control information size, and performing rate-matching on stored encoded stream of bits based, at least in part, on a mother code size, N, and a number of coded bits for transmission, E.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: December 20, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Changlong Xu, Chao Wei, Jing Jiang, Gaojin Wu, Hari Sankar, Jilei Hou
  • Publication number: 20220400391
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile station may receive, from a base station, an indication of a relaxed physical downlink shared channel (PDSCH) hybrid automatic repeat request acknowledgement (HARQ-ACK) feedback timeline associated with a dynamic spectrum sharing (DSS) deployment in which a first radio access technology (RAT) and a second RAT share a same frequency band. The mobile station may receive, from the base station, a PDSCH associated with the first RAT. The mobile station may transmit, to the base station, PDSCH HARQ-ACK feedback for the PDSCH associated with the first RAT based at least in part on the relaxed PDSCH HARQ-ACK feedback timeline associated with the DSS deployment. Numerous other aspects are described.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Inventors: Jae Ho RYU, Hari SANKAR, Alexei Yurievitch GOROKHOV, Hobin KIM, Jae Won YOO, Faris RASSAM
  • Patent number: 11528110
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus maybe a base station or a user equipment (UE). In an aspect, the apparatus may determine locations for a number of Demodulation Reference Signal (DM-RS) symbols to be transmitted within a scheduling unit of a channel included in a slot or mini-slot based on a selection between a first set of predetermined DM-RS positions and a second set of predetermined DM-RS positions. The apparatus may transmit the number of DM-RS symbols in the scheduling unit based on the determined locations.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: December 13, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Jae Won Yoo, Hari Sankar, Yi Huang, Wanshi Chen, Juan Montojo, Peter Gaal
  • Patent number: 11523412
    Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides techniques for determining timing conditions for uplink control information (UCI) processing by a user equipment (UE).
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: December 6, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Joseph Binamira Soriaga, Hari Sankar, Amir Aminzadeh Gohari, Afshin Shiravi
  • Publication number: 20220385398
    Abstract: Methods, apparatuses, and computer-readable storage medium for rate matching for TBoMS are provided. An example method includes calculating a slot length for each UL slot of a plurality of UL slots, the slot length for each UL slot being associated with a plurality of rate matching output bits, each UL slot including a starting point for the plurality of rate matching output bits, the slot length for each UL slot being associated with a starting boundary, the plurality of UL slots being associated with at least one of a single TB or a single rate matching. The example method may include allocating one or more bits of the plurality of rate matching output bits for a modulation process. The example method may include refraining allocating at least one bit of the plurality of rate matching output bits for the modulation process, the at least one bit corresponding to UCI multiplexing.
    Type: Application
    Filed: May 23, 2022
    Publication date: December 1, 2022
    Inventors: Sanghoon KIM, Alexei Yurievitch GOROKHOV, Hari SANKAR
  • Publication number: 20220360381
    Abstract: Certain aspects of the present disclosure provide techniques for power savings for reduced capability devices. A method that may be performed by a user equipment (UE) includes receiving a shared bandwidth part (BWP) configuration and a group common BWP configuration. The group common BWP configuration indicates a group common BWP shared by a group of UEs, including the UE, having one or more common capabilities or a common UE type. The method includes communicating using the group common BWP based on the group common BWP configuration.
    Type: Application
    Filed: April 11, 2022
    Publication date: November 10, 2022
    Inventors: Jing Lei, Qunfeng He, Muhammad Nazmul Islam, Linhai He, Peter Gaal, Hari Sankar, Carsten Aagaard Pedersen, Murali Menon, Alexei Yurievitch Gorokhov
  • Publication number: 20220361197
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive an indication of a codebook type for transmitting hybrid automatic repeat request (HARQ) feedback by the UE to a second device (e.g., a network device, a satellite, or a base station). The indication of the codebook type may indicate a HARQ feedback transmission configuration, such as a static HARQ feedback transmission configuration. The HARQ transmission configuration may be associated with a one bit or two bit HARQ codebook. The UE may receive a scheduled downlink shared channel transmission, and attempt to decode the received downlink shared channel transmission. The UE may transmit (or refrain from transmitting) the HARQ feedback based on the decoding of the scheduled downlink shared channel transmission and in accordance with the feedback mode.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 10, 2022
    Inventors: Xiao Feng Wang, Peter Gaal, Alberto Rico Alvarino, Liangping Ma, Alexei Yurievitch Gorokhov, Hari Sankar
  • Publication number: 20220360380
    Abstract: Certain aspects of the present disclosure provide techniques for power savings for reduced capability devices. A method that may be performed by a user equipment (UE) includes receiving a shared bandwidth part (BWP) configuration and a group common BWP configuration. The group common BWP configuration indicates a group common BWP shared by a group of UEs, including the UE, having one or more common capabilities or a common UE type. The method includes communicating using the group common BWP based on the group common BWP configuration.
    Type: Application
    Filed: March 17, 2022
    Publication date: November 10, 2022
    Inventors: Jing Lei, Qunfeng He, Muhammad Nazmul Islam, Linhai He, Peter Gaal, Hari Sankar, Carsten Aagaard Pedersen, Murali Menon, Alexei Yurievitch Gorokhov
  • Publication number: 20220361181
    Abstract: Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE receives, from a network entity, after transmitting at least a first repetition of a physical uplink control channel (PUCCH) transmission according to a first repetition factor, a dynamic indication of a second repetition factor to apply for transmitting the same PUCCH transmission. The UE determines an application time of the second repetition factor based on at least a timing of a last complete or partial transmission instance of the PUCCH transmission. The UE transmits, to the network entity, one or more additional repetitions of the PUCCH transmission based, at least in part, on the determined application time of the second repetition factor.
    Type: Application
    Filed: May 9, 2022
    Publication date: November 10, 2022
    Inventors: Mahmoud TAHERZADEH BOROUJENI, Hung Dinh LY, Gokul SRIDHARAN, Krishna Chaitanya MUKKERA, Hari SANKAR, Sanghoon KIM, Tao LUO
  • Publication number: 20220352946
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determine, based at least in part on two or more measurements on a channel taken at different points in time, that the channel is classified as static. The wireless communication device may perform at least one optimization based at least in part on determining that the channel is classified as static. For example, the at least one optimization may include modifying a channel state feedback procedure, reducing a periodicity associated with a measurement gap, modifying a filtering associated with measurements of the channel, reducing a threshold associated with beam switching, and/or refraining from performing at least one filtering at a radio frequency receiver of the wireless communication device. Numerous other aspects are described.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 3, 2022
    Inventors: Abhinav SRIDHAR, Paolo MINERO, Yongle WU, Ashok MANTRAVADI, Hari SANKAR, Alexei Yurievitch GOROKHOV
  • Patent number: 11489638
    Abstract: Methods, systems, and devices for wireless communications are described that identify a minimum gap between a control channel transmission on a first component carrier (CC) that triggers a measurement report and an associated reference signal transmission on a second CC. The minimum gap may be based on a resource associated with a control channel transmission and a resource associated with the reference signal transmission. The first CC and the second CC have different numerologies and the minimum gap may be identified in terms of a number of OFDM symbols of the second CC that carries the reference signal transmission. The minimum gap also may be identified based on a location of the control channel transmission within a slot of the first CC. In cases where beam switching is used, the minimum gap may be further based at least in part on a beam switch time for performing the beam switching.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: November 1, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Parisa Cheraghi, Hari Sankar, Joseph Binamira Soriaga, Tao Luo, Tingfang Ji, Peter Gaal, Alexei Yurievitch Gorokhov
  • Publication number: 20220345334
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an actual power delay profile (PDP) associated with a channel between the UE and a base station, wherein the actual PDP indicates an averaged power level of the channel over a period of time. The UE may determine whether a channel estimation mode switching event is satisfied. The UE may switch, based at least in part on the channel estimation mode switching event being satisfied, between a first channel estimation mode based at least in part on the actual PDP and a second channel estimation mode based at least in part on a template PDP. Numerous other aspects are described.
    Type: Application
    Filed: April 22, 2021
    Publication date: October 27, 2022
    Inventors: Abhinav SRIDHAR, Jae Won YOO, Tae Min KIM, Paolo MINERO, Ashok MANTRAVADI, Hari SANKAR, Alexei Yurievitch GOROKHOV