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).

  • Patent number: 11765603
    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 14, 2021
    Date of Patent: September 19, 2023
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Tianyi Xu, Qian Zhang, Allan Y. Tsai, Guodong Zhang, Lakshmi R. Iyer, Qing Li
  • Publication number: 20230292331
    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: Application
    Filed: March 31, 2023
    Publication date: September 14, 2023
    Inventors: Allan Y. Tsai, Lakshmi R. Iyer, Guodong Zhang, Qian Zhang, Pascal M. Adjakple, Qing Li, Joseph M. Murray, Tianyi Xi, Wei Chen, Ahmed ElSamadouny, Salman Khan, Yifan Li
  • Patent number: 11751217
    Abstract: Disclosed herein are new radio (NR) Data link architecture options including, for example, NR radio bearer models, NR logical channel models, and MAC and HARQ models. Further described are packet flows mapping to data radio bearers (DRBs), and a new flow encapsulation protocol in the user plane. In some embodiments, DRBs with different quality of service (QoS) are pre-established, but not activated. This allows a given user equipment (UE) to use these DRBs for packet data network (PDN) flows without a large overhead. Pre-established DRBs can be an extension to default bearer concept with the decision of pre-establishment of DRBs based on UE capability, subscription profile, operation policy, installed apps, etc.
    Type: Grant
    Filed: June 16, 2022
    Date of Patent: September 5, 2023
    Assignee: IPLA HOLDINGS INC.
    Inventors: Pascal M. Adjakple, Joseph M. Murray, Guodong Zhang, Lakshmi R. Iyer, Wei Chen, Stephen E. Terry
  • Publication number: 20230232453
    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: March 24, 2023
    Publication date: July 20, 2023
    Inventors: Lakshmi R. Iyer, Qing Li, Joseph M. Murray, Mohamed Awadin, Guodong Zhang, Pascal M. Adjakple, Allan Y. Tsai
  • Publication number: 20230216564
    Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
    Type: Application
    Filed: February 27, 2023
    Publication date: July 6, 2023
    Applicant: IPLA Holdings Inc.
    Inventors: Wei CHEN, Pascal M. ADJAKPLE, Joseph M. MURRAY, Qing LI, Qian ZHANG, Lakshmi R. IYER, Tianyi XU, Guodong ZHANG, Allan Y. TSAI
  • Publication number: 20230199717
    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: February 23, 2023
    Publication date: June 22, 2023
    Applicant: IPLA Holdings Inc.
    Inventors: Joseph M. Murray, Pascal M. Adjakple, Allan Y. Tsai, Qing Li, Lakshmi R. Iyer, Wei Chen, Guodong Zhang, Yifan Li, Mohamed Awadin
  • Patent number: 11683734
    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: September 22, 2022
    Date of Patent: June 20, 2023
    Assignee: IPLA HOLDINGS INC.
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Allan Y. Tsai, Lakshmi R. Iyer
  • Patent number: 11653331
    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: Grant
    Filed: April 7, 2021
    Date of Patent: May 16, 2023
    Assignee: IPLA HOLDINGS INC.
    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: 20230097166
    Abstract: PBCH design may affect timing indication in a wireless network and polar code interleaver design, among other things. Mechanisms may indicate half frame timing though de modulation reference signal sequence initialization, de-modulation reference signal mapping order, or de-modulation reference signal resource element location.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Applicant: IPLA Holdings Inc.
    Inventors: Lakshmi R. IYER, Allan Y. TSAI, Qing LI, Joseph M. MURRAY
  • Patent number: 11616545
    Abstract: Multiple mobility sets are maintained for nodes of radio networks. The sets comprise information such as: transmit and receive point identities; cell identities; beam identities; frequency channels; channel bandwidth; and black lists. The sets may be defined at different levels, such as network and physical (PHY) level. A network mobility set, e.g., a new-radio (NR) mobility set may, be determined by the gNB, the cell, the UE, or another device. Multiple radio access network nodes and UEs may exchange mobility set information to achieve a distributed mobility solution. A UE may monitor its orientation relative to a TRP, e.g., via use of an onboard MEMS gyroscope, and alter its beamforming parameters in response to changes in orientation and/or changes in TRP connection strength. Cell selection and reselection for beam based networks may use Single Frequency Network (SFN) broadcast of initial access signals without beam sweeping.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: March 28, 2023
    Assignee: IPLA HOLDINGS INC.
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Qing Li, Qian Zhang, Lakshmi R. Iyer, Tianyi Xu, Guodong Zhang, Allan Y. Tsai
  • Publication number: 20230071547
    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: October 28, 2022
    Publication date: March 9, 2023
    Applicant: IPLA Holdings Inc.
    Inventors: Allan Y. TSAI, Qing LI, Guodong ZHANG, Yifan LI, Lakshmi R. IYER, Pascal M. ADJAKPLE, Mohamed AWADIN, Joseph M. MURRAY
  • Publication number: 20230035989
    Abstract: Methods and apparatuses are described herein for transmission priority, collisions, and sharing in the COT by frame based equipment (FBE). In accordance with one embodiment, a wireless communications device such as an FBE, may conduct two stage channel sensing to avoid collision between other FBEs nodes. The wireless communications device may adjust the energy threshold to reflect a channel access priority. The FBE may conducting continuous and non-continuous second stage channel sensing. The FBE may perform enhanced two stage channel sensing to exploit the remaining portion of the COT. The FBE may store a configuration for the second stage of channel sensing for both the downlink (DL) and uplink (UL).
    Type: Application
    Filed: September 25, 2020
    Publication date: February 2, 2023
    Inventors: Mohamed AWADIN, Qing LI, Lakshmi R. IYER, Pascal M. ADJAKPLE, Yifan LI, Zhuo CHEN, Allan Y. TSAI, Joseph M. MURRAY, Rocco DI GIROLAMO, Guodong ZHANG
  • Publication number: 20230033917
    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: September 22, 2022
    Publication date: February 2, 2023
    Applicant: IPLA HOLDINGS INC.
    Inventors: Wei CHEN, Pascal M. ADJAKPLE, Joseph M. MURRAY, Allan Y. TSAI, Lakshmi R. IYER
  • Patent number: 11569934
    Abstract: PBCH design may affect timing indication in a wireless network and polar code interleaver design, among other things. Mechanisms may indicate half frame timing though de-modulation reference signal sequence initialization, de-modulation reference signal mapping order, or de-modulation reference signal resource element location.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: January 31, 2023
    Assignee: IPLA HOLDINGS INC.
    Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Qing Li, Joseph M. Murray
  • Patent number: 11564170
    Abstract: Techniques for improved wake-up signal (WUS) operation in a wireless communication system are described. In accordance with one embodiment, a wireless communications device may receive, from a gNB, information indicating parameters associated with a wake-up signal time window and may power down its first receiver and second receiver based on a discontinuous reception (DRX) cycle. The wireless communications device may wake up the second receiver to receive, from the gNB, a wake-up signal during a configured WUS time window and determine whether a wake-up or a non-wake-up condition is indicated. If a wake-up condition is indicated, then the wireless communications device may wake up the first receiver before an on duration of the DRX cycle to synchronize timing with the gNB, detect a new radio physical downlink control channel (NR-PDCCH) during the on duration of the DRX cycle, and reset a size of the wake-up signal time window.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 24, 2023
    Assignee: IPLA HOLDINGS INC.
    Inventors: Guodong Zhang, Pascal M. Adjakple, Joseph M. Murray, Lakshmi R. Iyer
  • Publication number: 20220416972
    Abstract: In NR, a slot structure of a UE may be dynamic due the number of symbols of PDCCH and whether the slot has UL data, among other considerations. Additionally, to support multi-TRP/multi-panel/multi-BWP operation, a UE may be configured with multiple TRSs, and when a UE needs to receive multiple TRSs in the same slot, efficient signaling of the TRSs is important because of the high overhead involved. During a transmission, a UE may need to do beam switching when there is a beam failure, but existing systems do not have mechanisms for the UE to synchronize time and frequency with a new beam. Further, when a UE switches to a new beam, the effect on scheduled TRS transmission for old beams is unclear. Fine frequency and time tracking may also be required during an initial access procedure. Existing NR systems do not address how a UE may perform time and frequency tracking during an initial access procedure. Additionally, URLLC data may need to be transmitted to a UE immediately in an NR system.
    Type: Application
    Filed: June 23, 2022
    Publication date: December 29, 2022
    Inventors: Yifan Li, Lakshmi R. Iyer, Joseph M. Murray, Allan Y. Tsai, Guodong Zhang, Qing Li
  • Patent number: 11533742
    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: Grant
    Filed: May 10, 2019
    Date of Patent: December 20, 2022
    Assignee: IPLA Holdings Inc.
    Inventors: Allan Y. Tsai, Qing Li, Guodong Zhang, Yifan Li, Lakshmi R. Iyer, Pascal M. Adjakple, Mohamed Awadin, Joseph M. Murray
  • Publication number: 20220377790
    Abstract: A wireless device, such as user equipment (UE) or other apparatus, like may use a transparent mode operation in which the device is not aware of the operation mode of abase station, such as a gNB or other transmission and receive point (TRP), via the use of configurations for Frame Based Equipment (FBE) and Load Based Equipment (LBE) operating modes. A base station may initiate a Channel Occupancy Time (COT) that is an FBE COT or an LBE COT, in which the wireless device follows FBE or LBE procedures accordingly. A variety of criteria may be applied in determining whether to use FBE or LBE procedures, and to switch between them. A network may use indicate the intention to switch operation mode and may do so via implicit or explicit indications. Similarly, a wireless device may autonomously switch operation mode, and may indicate the selected mode to the network.
    Type: Application
    Filed: October 2, 2020
    Publication date: November 24, 2022
    Inventors: Mohamed AWADIN, Qing LI, Lakshmi R. IYER, Yifan LI, Allan Y. TSAI, Pascal M. ADJAKPLE, Patrick SVEDMAN, Guodong ZHANG
  • Patent number: 11510119
    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: May 20, 2021
    Date of Patent: November 22, 2022
    Assignee: IPLA HOLDINGS INC.
    Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Allan Y. Tsai, Lakshmi R. Iyer
  • Publication number: 20220369225
    Abstract: Methods, systems, and devices may enable UE power savings in multi-beam connectivity using multi-TRPs or multi-UE panels. Methods, systems, and devices may enable PDCCH skipping in the active duration of the UE by skipping PDCCH monitoring associated with groups of CORESETs.
    Type: Application
    Filed: October 2, 2020
    Publication date: November 17, 2022
    Inventors: Lakshmi R. IYER, Qing LI, Patrick SVEDMAN, Guodong ZHANG, Mohamed AWADIN, Yifan LI, Allan Y. TSAI, Pascal M. ADJAKPLE