Patents by Inventor Lakshmi R. Iyer

Lakshmi R. Iyer 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: 20210321277
    Abstract: Radio resource management measurements for new radio unlicensed are performed that are based on a measurement model where a missed received signal transmission opportunity indicator is provided to higher layers to adapt the measurement functions performed by the radio resource control when a missed received signal transmission opportunity is detected. Radio link monitoring for new radio unlicensed is performed based on in-sync or out-of-sync indications that are based on the estimated radio link quality in combination with missed radio link monitoring reference signal transmission opportunities.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 14, 2021
    Inventors: Joseph M. MURRAY, Pascal M. ADJAKPLE, Lakshmi R. IYER, Qing LI, Yifan LI, Mohamed AWADIN, Allan Y. TSAI, Guodong ZHANG
  • Publication number: 20210315000
    Abstract: Methods and apparatuses are described herein for uplink control information (UCI) design for uplink (UL) transmission with configured grants. In accordance with one embodiment, a wireless communications device may receive, from a gNB, first information indicating a plurality of resources for a configured grant (CG) on a physical uplink shared channel (PUSCH). The wireless communications device may determine, based on second information, a portion of the plurality of resources to use for transmitting a configured grant-uplink control information (CG-UCI). The wireless communications device may generate the CG-UCI, wherein the CG-UCI comprises at least one of: an identifier associated with the wireless communications device or an indication of a modulation and coding scheme (MCS). The wireless communications device may transmit, to the gNB on the PUSCH, the CG-UCI using the determined portion of the plurality of resources.
    Type: Application
    Filed: August 8, 2019
    Publication date: October 7, 2021
    Inventors: Yifan LI, Allan Y. TSAI, Qing LI, Lakshmi R. IYER, Mohamed AWADIN, Joseph M. MURRAY, Guodong ZHANG
  • Publication number: 20210306824
    Abstract: Methods, systems, and devices may assist in broadcast, multicast, or unicast on sidelink for 5G eV2X. The following mechanisms for broadcast, multicast, or unicast on sidelink for Vehicle to everything (V2X). Broadcast on sidelink may include methods, systems, or devices for broadcast occasions or monitoring window. Multicast on sidelink may include methods, systems, or devices for multicast occasions or group ID. Unicast on sidelink may include methods, systems, or devices for unicast occasions, UE ID, transmitter initiated transmission, or receiver initiated. Methods, systems, or devices may use communication occasions for platooning.
    Type: Application
    Filed: July 8, 2019
    Publication date: September 30, 2021
    Inventors: Qing LI, Pascal M. ADJAKPLE, Guodong ZHANG, Mohamed AWADIN, Allan Y. TSAI, Yifan LI, Lakshmi R. IYER
  • Publication number: 20210289517
    Abstract: Methods, systems, and apparatuses are described herein for beamforming based initial access, beam management, and beam based mobility designs for NR systems. Issues are identified and addressed related to, for example, initial access, control channel design, eMBB and URLLC mixing, and beam training.
    Type: Application
    Filed: May 20, 2021
    Publication date: September 16, 2021
    Inventors: Qing Li, Lakshmi R. Iyer, Allan Y. Tsai, Guodong Zhang, Tianyi Xu, Wei Chen, Pascal M. Adjakple, Joseph M. Murray
  • Publication number: 20210289548
    Abstract: A radio device may receive network assistance information relating to uplink channel access procedures, such as channel access types and related listen-before-talk techniques, via layer one signaling or higher layer signaling. For example, information may be provided via DCI, MAC CE, or RRC messaging, e.g., received in a CORESET preceding the configured PRACH resources. Access procedures may be random access procedures, and may include indication via R.AR messaging. Access procedures may be triggered by a radio access point message, such as a PDCCH order or a handover request.
    Type: Application
    Filed: May 9, 2019
    Publication date: September 16, 2021
    Inventors: Joseph M. MURRAY, Pascal M. ADJAKPLE, Lakshmi R. IYER, Mohamed AWADIN, Qing LI, Jan R. JOHANSSON, Stephen E. TERRY
  • Patent number: 11121819
    Abstract: Systems and method are specified to improve the reception of UL transmission, for example in power or coverage limited situations. A WTRU may modify procedures to increase the available signal energy for reception at an eNB and/or to make more efficient use of the available signal energy at the receiver for processing UL transmissions. Example methods for increasing UL link coverage may include modifying HARQ timing (e.g., shorter HARQ), using longer TTIs, use of dedicated PUSCH allocations, use of new PUSCH modulations, enhanced reference signal design, UL macro diversity reception for PUSCH, utilizing protocol reduction techniques, ensuring in-order packet delivery, and/or utilizing a configuration for coverage limited/power limited modes of operation. The proposed methods may be applied individually or in any combination.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: September 14, 2021
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Marian Rudolf, Paul Marinier, Diana Pani, Ghyslain Pelletier, Christopher R. Cave, Lakshmi R. Iyer, Muhammad U. Fazili
  • Publication number: 20210282050
    Abstract: Current approaches to radio link control (RLC) data forwarding with no end-to-end RLC entities between a given UE and IAB donor node lack proper buffer management. In various examples, the premature deletion of transmitted PDCP PDUs is avoided. Various embodiments also address buffer size control, for example end-to-end flow control, hot-by-hop flow control, explicit and implicit flow control options are described. Content of flow control messages, transmitter actions at the reception of flow control, and triggers for flow controls are also described herein.
    Type: Application
    Filed: June 20, 2019
    Publication date: September 9, 2021
    Inventors: Pascal M. ADJAKPLE, Stephen E. TERRY, Guodong ZHANG, Joseph M. MURRAY, Qing LI, Mohamed AWADiN, Yifan LI, Allan Y. TSAI, Lakshmi R. IYER
  • Publication number: 20210274466
    Abstract: New radio channel designs incorporate a synchronization signal burst series frame structure, with higher layer channels mapped to physical channels transmitted during a synchronization signal, allowing user equipment to select beams during which to listen for paging information. A physical common control channel configuration information element may be used to signal the paging configuration as part of the System Information. Paging may occur with or without user equipment assistance.
    Type: Application
    Filed: April 7, 2021
    Publication date: September 2, 2021
    Inventors: Joseph M. Murray, Pascal M. Adjakple, Allan Y. Tsai, Qing Li, Lakshmi R. Iyer, Wei Chen, Guodong Zhang, Yifan Li, Mohamed Awadin
  • Publication number: 20210274545
    Abstract: Sidelink communication operations may be enhanced through the use of communications requirement signaling, which may include, for example, indications of the type, size, quality of service requirements, pending buffer sizes, and the like, and through the evaluation of such signaled information to determine whether existing grants and logical channels may suffice for new sidelink traffic. Grants may be requested via sidelink scheduling requests and sidelink buffer status reporting, for example, which allow scheduling devices, such as base stations and scheduling user equipment apparatuses, early insight into needs of sidelink traffic for application with divergent QoS requirements.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 2, 2021
    Inventors: Pascal M. ADJAKPLE, Qing LI, Joseph M. MURRAY, Lakshmi R. IYER, Mohamed AWADIN, Yifan LI, Allan Y. TSAI, Guodong ZHANG
  • Publication number: 20210274403
    Abstract: Measurement modeling and filtering may include configurable cell quality derivation method is used for multi-beam based NR networks; a common measurement model that considers different characteristics of the two measurement signals, NR synchronization signal and additional reference signal; and a multi-level measurement filtering approach that handles different mobility scenarios in an NR network. Measurement configuration and procedures may include a measurement gap design during which UE may use to perform measurements for beam sweeping based NR networks; a group of triggering events that may be used to trigger UE mobility management in an NR network; a content format that may be used for the transmission of UE measurement report; a measurement object design (the object on which a UE may perform the measurements) to reduce UE measurement overhead and cost; and a downlink measurement based inter-cell handover procedure that may be used in an NR network.
    Type: Application
    Filed: May 20, 2021
    Publication date: September 2, 2021
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Allan Y. Tsai, Lakshmi R. Iyer
  • Publication number: 20210250884
    Abstract: The present application describes an apparatus on a network a non-transitory memory including instructions stored thereon for resynchronization. The apparatus also includes a processor operably coupled to the non-transitory memory configured to execute the instructions of performing downlink (DL) synchronization with an integrated and access backhaul (IAB) parent node. Synchronization includes searching for a synchronization signal/physical broadcast channel (SS/PBCH) of the parent IAB node distinct from other SS/PBCH signals of the parent IAB node assigned for user equipments (UEs). The processor is configured to execute the instructions of performing random access to obtain a timing advance (TA) from the parent IAB node, and receiving a timing adjustment (Tadj) from the parent IAB node for the resynchronization separate from the TA.
    Type: Application
    Filed: June 19, 2019
    Publication date: August 12, 2021
    Inventors: Lakshmi R. IYER, Guodong ZHANG, Qing LI, Yifan LI, Joseph M. MURRAY, Mohamed AWADIN, Allan Y. TSAI, Pascal M. ADJAKPLE
  • Publication number: 20210243777
    Abstract: Non-Orthogonal Multiple Access (NOMA) transmissions are described herein in which sequence collision is mitigated or eliminated by exploiting the randomness nature of user specific reference bits and data bits. Further, methods, systems, and devices that use NOMA for small data transmissions are disclosed.
    Type: Application
    Filed: May 10, 2019
    Publication date: August 5, 2021
    Inventors: Allan Y. TSAI, Qing LI, Guodong ZHANG, Yifan LI, Lakshmi R. IYER, Pascal M. ADJAKPLE, Mohamed AWADIN, Joseph M. MURRAY
  • Publication number: 20210235492
    Abstract: Methods, systems, and apparatus designed to support flexible carrier bandwidths in new radio. Multiple carrier bands may be combined into a single composite carrier depending on channel availability in the carrier bands. A composite carrier indicator (CCI) indicates to network devices, the available carrier bands within the channel occupancy time. In addition, bandwidth part inactivity time is suspended when channel access is not available.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 29, 2021
    Inventors: Lakshmi R. IYER, Guodong ZHANG, Joseph M. MURRAY, Qing LI, Allan Y. TSAI, Pascal M. ADJAKPLE, Mohamed AWADIN
  • Publication number: 20210235491
    Abstract: A Channel Access Indicator (CAI) may be employed in New Radio Unlicensed (NR-U) to indicate channel occupation by a node to nodes outside its cell, indicate channel occupation by a node to nodes within its cell to aid spectral reuse, and to trigger a handshake between nodes within a cell to ensure that receiver has clear channel to transmit and receive.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 29, 2021
    Inventors: Lakshmi R. IYER, Qing LI, Joseph M. MURRAY, Mohamed AWADIN, Guodong ZHANG, Pascal M. ADJAKPLE, Allan Y. TSAI
  • Publication number: 20210234601
    Abstract: Beam failure recovery may be improved via the use enhanced signaling, counters, and windowing. Signaling may include a beam failure reference signal (BFRS) detection signal, which indicates that an access point (e.g., gNB) has acquired a channel for downlink transmission. Based on the BFRS detection signal, a wireless terminal (e.g., UE) may then monitor a gNB downlink transmission during a maximum channel occupancy time (MCOT). The UE may count missed beam failure reference signal instances and report the count, e.g., via higher layer signaling. Signaling may include a BFRS absence indication reflecting an instance of a BFRS that is not transmitted due to channel unavailability. The UE may then exclude the instance of the BFRS from the count. Signaling may include a gNB response detection signal, which may inform the UE to monitor a gNB downlink transmission. The UE may trigger timer after receiving an access gNB response detection signal.
    Type: Application
    Filed: May 10, 2019
    Publication date: July 29, 2021
    Inventors: Mohamed AWADIN, Qing LI, Lakshmi R. IYER, Joseph M. MURRAY, Yifan LI, Pascal M. ADJAKPLE, Guodong ZHANG, Allan Y. TSAI
  • Publication number: 20210219268
    Abstract: Methods and systems are disclosed for resource management on Sidelink for vehicle to everything (V2X) scenarios. Example methods and systems for a Resource Structure on Sidelink are disclosed. Control and data channels may be Frequency Division Multiplexed (FDMed) or Time Division Multiplexed (TDMed) with an Orthogonal Frequency Division Multiplexing (OFDM) waveform. Example methods and systems for a Resource Configuration on Sidelink are disclosed. The resource configuration may be statically configured or may be locally configured. Example methods and systems for Assisted Resource Allocation are disclosed. Assisted Sensing may be performed by a group lead or RSU and local scheduling may be performed by a group lead or RSU.
    Type: Application
    Filed: July 8, 2019
    Publication date: July 15, 2021
    Inventors: Qing LI, Pascal M. ADJAKPLE, Guodong ZHANG, Lakshmi R. IYER, Mohamed AWADIN, Yifan LI, Allan Y. TSAI, Joseph M. MURRAY
  • Patent number: 11064374
    Abstract: It is recognized herein that as the number of transmit antennas in cellular systems (e.g., NR or 5G systems) increase, the Channel State information (CSI) feedback overhead may increase to unacceptable levels, and the current CSI feedback might not support beamforming training for NR. Embodiments described herein provide an enhanced and more efficient design for Channel State Information feedback as compared to current approaches.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: July 13, 2021
    Assignee: Covida Wireless, LLC
    Inventors: Tianyi Xu, Qian Zhang, Allan Y. Tsai, Guodong Zhang, Lakshmi R. Iyer, Qing Li
  • Patent number: 11051293
    Abstract: New radio download numerology allocation information may be obtained through master information block data, system information block data, radio resource control signals, or signals or a physical downlink numerology indication channel, and used along with a reference signal detected in a search space to obtain resource element positions in an antenna port reference signal in a resource block that belongs to a particular band slice according to a reference signal allocation scheme for a band slice numerology. A physical download control may then be decoded based upon one or more resource elements of the reference signal, allowing the connection of, e.g., an enhanced mobile broadband, massive machine type communication, or ultra-reliable/low-latency application to a communications network thereby. Alternatively, multiple physical downlink control channels may be blindly demodulated at each of a number calculated reference signal locations, and one channel selected based on passing a cyclic redundancy check.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: June 29, 2021
    Assignee: Convida Wireless, LLC
    Inventors: Allan Y. Tsai, Lakshmi R. Iyer, Guodong Zhang, Qian Zhang, Pascal M. Adjakple, Qing Li, Joseph M. Murray, Tianyi Xu, Wei Chen, Ahmed ElSamadouny, Salman Khan, Yifan Li
  • Patent number: 11044739
    Abstract: Methods, systems, and apparatuses are described herein for beamforming based initial access, beam management, and beam based mobility designs for NR systems. Issues are identified and addressed related to, for example, initial access, control channel design, eMBB and URLLC mixing, and beam training.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: June 22, 2021
    Assignee: Convida Wireless
    Inventors: Qing Li, Lakshmi R. Iyer, Allan Y. Tsai, Guodong Zhang, Tianyi Xu, Wei Chen, Pascal M. Adjakple, Joseph M. Murray
  • Patent number: 11044650
    Abstract: Measurement modeling and filtering may include configurable cell quality derivation method is used for multi-beam based NR networks; a common measurement model that considers different characteristics of the two measurement signals, NR synchronization signal and additional reference signal; and a multi-level measurement filtering approach that handles different mobility scenarios in an NR network. Measurement configuration and procedures may include a measurement gap design during which UE may use to perform measurements for beam sweeping based NR networks; a group of triggering events that may be used to trigger UE mobility management in an NR network; a content format that may be used for the transmission of UE measurement report; a measurement object design (the object on which a UE may perform the measurements) to reduce UE measurement overhead and cost; and a downlink measurement based inter-cell handover procedure that may be used in an NR network.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: June 22, 2021
    Assignee: Convida Wireless, LLC
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Allan Y. Tsai, Lakshmi R. Iyer