Patents by Inventor Siddhartha Mallik

Siddhartha Mallik 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: 10959226
    Abstract: Techniques are described for preempting resource allocations to one or more UEs in the event that delay sensitive data is received. A resource allocation of a number of symbols may be granted to a first user equipment (UE) for first associated data to be transmitted. Subsequently, data may be received for a second UE that is more delay sensitive than the first data. The resource allocation to the first UE may be preempted, and resources allocated to the second UE for the second data within a variable length transmission time interval (TTI) of the resource allocation to the first UE. UEs may monitor for preemption during transmissions to other UEs in order to receive new resource grants associated with the preempted resource grant. Whether a UE monitors transmissions for preemption may be determined based on a quality or service (QoS) of the UE.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: March 23, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Jelena Damnjanovic, Aleksandar Damnjanovic, Taesang Yoo, Siddhartha Mallik, Madhavan Srinivasan Vajapeyam, Durga Prasad Malladi, Yongbin Wei
  • Publication number: 20210075691
    Abstract: Methods, systems, and devices for wireless communications are described, and relate to a base station to communicating with a user equipment (UE) over a channel. A first device (for example, the base station or the UE) may use a trained neural network to estimate one or more link performance metrics associated with the channel. Predicting the link level performance may include determining one or more neural network weights associated with one or more input parameters associated with the channel to estimate the one or more link performance metrics. The first device may report feedback to the second device based on the estimated link performance metrics. Based on the feedback, the second device may adapt the link by adjusting channel parameters to improve the reliability or efficacy of later transmissions.
    Type: Application
    Filed: September 9, 2019
    Publication date: March 11, 2021
    Inventors: Weiliang Zeng, Sanaz Barghi, Siddhartha Mallik, Taesang Yoo, Yisheng Xue, Xiaoxia Zhang
  • Patent number: 10939440
    Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: March 2, 2021
    Assignee: Qualcomm Incorporated
    Inventors: Xiaoxia Zhang, Juan Montojo, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Michael Mingxi Fan
  • Patent number: 10893509
    Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may send a signal including multiple transport blocks corresponding to multiple simultaneous hybrid automatic repeat request (HARQ) processes. Additional control information may be used to support the multiple simultaneous HARQ processes. For instance, the additional control information may indicate the number of available HARQ processes, an activity state for each HARQ process (e.g., active new data, active retransmission, or inactive), and the redundancy versions of each HARQ process. In some cases, the additional control information may be included in a downlink grant. A receiving device may respond with an acknowledgement or negative acknowledgment (ACK/NACK) for each of the transport blocks. The transmitting device may identify a retransmission status for each HARQ process based on the ACK/NACKs, and transmit new redundancy versions (or new data) to the receiving device.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 12, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Siddhartha Mallik, Jelena Damnjanovic, Taesang Yoo
  • Patent number: 10887941
    Abstract: Techniques are described for wireless communication. One method includes receiving, in a downlink portion of a transmission structure on a shared radio frequency spectrum band, an uplink grant for an uplink data portion of the transmission structure. The transmission structure includes the downlink portion, followed by and time domain multiplexed with an uplink control portion, followed by and time domain multiplexed with the uplink data portion. The method also includes retaining access to the shared radio frequency spectrum band by transmitting an unscheduled transmission during the uplink control portion of the transmission structure.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: January 5, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Taesang Yoo, Zhifei Fan, Jing Sun, Juan Montojo, Siddhartha Mallik, Aleksandar Damnjanovic, Xiaoxia Zhang
  • Patent number: 10856300
    Abstract: A per-transmit time interval (TTI) rank control within a transmission opportunity (TxOP) is described for downlink coordinated multiple point (CoMP) operations. In operation, a base station may determine rank and data rate for communication during a transmission opportunity (TxOP) at the beginning of the TxOP. Each TxOP may include a plurality of transmission time intervals (TTIs). For each TTI of the TxOP, the base station computes one or more channel quality indicator (CQI) back-offs using one or more outer loop adaptation processes per TTI, and updates rank and the data rate using the CQI back-offs. Once updated, the base station transmits the downlink data during each TTI according to the updated rank and the data rate.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: December 1, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yisheng Xue, Weiliang Zeng, Siddhartha Mallik, Aleksandar Damnjanovic, Tamer Kadous
  • Patent number: 10841805
    Abstract: Methods, systems, and devices for wireless communications are described. An access point of a secondary cluster may identify a first set of access points of a primary cluster scheduled to perform downlink transmissions over a shared radio frequency spectrum band during a transmission opportunity. The access point may identify a second set of access points and may select a first set of blacklisted stations associated with the secondary cluster for the transmission opportunity. In some cases, the selecting is based on the first set of access points and the second set of access points. The access point may then selectively perform at least one downlink transmission to a second set of stations associated with the secondary cluster during the transmission opportunity. In some examples, the second set of stations is based on the first set of blacklisted stations.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: November 17, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yisheng Xue, Siddhartha Mallik, Weiliang Zeng, Aleksandar Damnjanovic, Tamer Kadous
  • Patent number: 10841037
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. In one configuration, the apparatus may be a UE. The UE determines an MCS that would facilitate interference suppression of an interfering first cell transmission from a first cell when decoding a second cell transmission from a second cell at the UE. The interfering first cell transmission is a transmission unintended for the UE. The second cell transmission is a transmission intended for the UE. The UE transmits information indicating the determined MCS for the first cell. The UE receives a transmission including the second cell transmission from the second cell and the interfering first cell transmission from the first cell. The UE demodulates and/or decodes the second cell transmission from the received transmission based on the determined MCS.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: November 17, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Siddhartha Mallik, Taesang Yoo, Tao Luo, Yongbin Wei
  • Patent number: 10834757
    Abstract: Aspects of the disclosure relate to reserving resources in wireless communication systems, such as those employing listen before talk (LBT). The disclosed methods and apparatus employ a channel reservation preamble used in a sequence of burst or data packet transmissions. The preamble including a channel reservation indication is included in a first data packet transmitted from a first network node. The channel reservation indication is configured to indicate a transmission time reservation of channel resources covering the data packet containing the preamble, a second data packet to be received from a second network node responsive to the first data packet, and at least a portion of a third data packet transmitted from the first network node subsequent to the transmission of the second data packet. In this manner, over-reservation of channel resources is mitigated. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Jing Sun, Taesang Yoo, Xiaoxia Zhang, Siddhartha Mallik
  • Patent number: 10834603
    Abstract: Wireless communications systems and methods related to reservation signal transmission and detection for spectrum sharing are provided. A first wireless communication device communicates, with a second wireless communication device, a reservation request (RRQ) signal to reserve a transmission opportunity (TXOP) in a shared spectrum, wherein the shared spectrum is shared by a plurality of network operating entities, and wherein the first wireless communication device and the second wireless communication device are associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device transmits a reservation response (RRS) signal indicating an interference tolerance level of the first wireless communication device.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Siddhartha Mallik, Taesang Yoo, Juan Montojo, Aleksandar Damnjanovic, Junyi Li
  • Patent number: 10833739
    Abstract: Reference signal and transmitter (Tx)/receiver (Rx) precoding for user equipment (UE) multiplexing in new radio (NR) shared spectrum networks is discussed. In certain reference signals, a base station may schedule multiple UEs for transmission of uplink reference signals within an identified subframe. The base station may transmit a reference signal configuration message, wherein the reference signal configuration message includes a transmission sequence identifier identifying a multiplexing for antenna ports assigned for transmission of the uplink reference signals. The multiplexing may be one or both of frequency divisional multiplexing (FDM) and time division multiplexing (TDM) over the identified subframe. Additional reference signals, transmit precoders may be identified by the base station based on channel inversion calculations of the channel matrix determined based on uplink reference signals.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 10, 2020
    Assignee: QUALCOMM INCORPORATED
    Inventors: Seyed Ali Akbar Fakoorian, Xiaoxia Zhang, Taesang Yoo, Siddhartha Mallik, Juan Montojo
  • Patent number: 10826581
    Abstract: A machine-learning based multiple-input, multiple-output (MIMO) demapper for a wireless device may include a classifier that selects which MIMO demapper to use for a sample for a particular tone. For example, a wireless device may receive via a plurality of antennas a plurality of signals including a plurality of tones. The wireless device may determine selection features for each tone of the plurality of tones. The wireless device may select, for each tone, by the classifier based on the selection features, a selected demapper from at least a first MIMO demapper and a second MIMO demapper. The second MIMO demapper may have a different performance characteristic than the first MIMO demapper. The wireless device may detect, for each tone, one or more streams using the selected demapper for the tone. A stream may refer to a sequence of bits.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: November 3, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Parham Noorzad, Siddhartha Mallik, Taesang Yoo
  • Patent number: 10827488
    Abstract: Various aspects described herein relate to communicating using dynamic uplink and downlink transmission time interval (TTI) switching in a wireless network. A notification can be received from a network entity of switching a configurable TTI from downlink communications to uplink communications. The configurable TTI can be one of a plurality of TTIs in a frame structure that allows dynamic switching of configurable TTIs between downlink and uplink communications within a frame. Additionally, uplink communications can be transmitted to the network entity during the configurable TTI based at least in part on the notification.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: November 3, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Siddhartha Mallik, Taesang Yoo, Jelena Damnjanovic, Aleksandar Damnjanovic, Arumugam Chendamarai Kannan, Yongbin Wei, Durga Prasad Malladi
  • Patent number: 10820316
    Abstract: Multiple base stations, which may be controlled by different network operators, share a transmission medium to serve multiple user equipment (UE). A first base station determines that the shared communication medium is free. The first base station transmits, during a first medium access slot on the shared communication medium, a pre-grant for a first UE associated with the first base station. The first UE transmits a response message during the first medium access slot. Optionally, a second base station may join the transmission by transmitting a pre-grant to a second UE during a subsequent medium access slot.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: October 27, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Jing Sun, Taesang Yoo, Siddhartha Mallik, Juan Montojo
  • Publication number: 20200322941
    Abstract: Methods, systems, and devices are described for wireless communication. A transmitting device may send a signal including multiple transport blocks corresponding to multiple simultaneous hybrid automatic repeat request (HARQ) processes. Additional control information may be used to support the multiple simultaneous HARQ processes. For instance, the additional control information may indicate the number of available HARQ processes, an activity state for each HARQ process (e.g., active new data, active retransmission, or inactive), and the redundancy versions of each HARQ process. In some cases, the additional control information may be included in a downlink grant. A receiving device may respond with an acknowledgement or negative acknowledgment (ACK/NACK) for each of the transport blocks. The transmitting device may identify a retransmission status for each HARQ process based on the ACK/NACKs, and transmit new redundancy versions (or new data) to the receiving device.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Siddhartha Mallik, Jelena Damnjanovic, Taesang Yoo
  • Patent number: 10772125
    Abstract: A method, apparatus, and computer-readable medium at a transmitting network device or a target network device in a listen-before-talk (LBT) session that employ a spatial LBT procedure is disclosed. The spatial LBT procedure takes into account multiple-input multiple-output (MIMO) configuration information in measuring an effective interference. Accordingly, the spatial LBT procedure enables the transmitting network device or the target network device to more accurately measure an interference and make a more accurate decision on whether a channel is clear, and thus improves the system-wide performance. Also, the spatial LBT procedure allows the transmitting network device or the target/receiving network device to adaptively adjust the LBT power detection threshold when the MIMO configuration is not available.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: September 8, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yisheng Xue, Qingsi Wang, Siddhartha Mallik, Weiliang Zeng, Ahmed Sadek
  • Patent number: 10771273
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received information.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 8, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Yongbin Wei, Peter Gaal, Hao Xu, Taesang Yoo, Siddhartha Mallik, Makesh Pravin John Wilson, Naga Bhushan, Durga Prasad Malladi, Tingfang Ji, Gavin Bernard Horn, Alexei Y. Gorokhov, Avneesh Agrawal
  • Patent number: 10772092
    Abstract: Methods, systems, and devices are described for hierarchical communications and low latency support within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing. In some examples symbols of different duration may be multiplexed such that they different symbol durations coexist.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: September 8, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Taesang Yoo, Siddhartha Mallik, Arumugam Chendamarai Kannan, Jelena Damnjanovic, Madhavan Srinivasan Vajapeyam, Jun Wang, Yongbin Wei, Durga Prasad Malladi
  • Patent number: 10764840
    Abstract: Certain aspects of the present disclosure relate to methods and apparatus for sounding reference signal (SRS) coordination, power control, and synchronization for distributed coordinated multipoint (CoMP) using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communications by a network entity includes determining a first amount of transmission (Tx) power for transmission of signals originating from a first cluster center that is connected to the network entity, determining a second amount of Tx power for transmission of signals originating from at least a second cluster center that is connected to the network entity, and transmitting signals for one or more user equipment (UEs) served by the first cluster center and one or more UEs served by the second cluster center based on the first amount of Tx power and the second amount of Tx power.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: September 1, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Taesang Yoo, Jing Sun, Siddhartha Mallik, Xiaoxia Zhang, Tamer Kadous
  • Publication number: 20200267681
    Abstract: Position determination of a user equipment (UE) is supported using channel measurements obtained for Wireless Access Points (WAPs), wherein the channel measurements are for Line of Sight (LOS) and Non-LOS (NLOS) signals. Based on WAP almanac information and the channel measurements, channel parameters indicative of positions of signal sources relative to a first position of a UE may be determined. Using the first position of the UE and an association of the signal sources with corresponding channel parameters, a second position of the UE may be determined. The position of the UE may be a probability density function. Additionally, position information for signal sources may be determined, such as a probability density function, as well as signal blockage probability and an antenna geometry and the WAP almanac information may be updated accordingly.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 20, 2020
    Inventors: Lorenzo FERRARI, Taesang YOO, Siddhartha MALLIK