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).
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Patent number: 11616545Abstract: 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: GrantFiled: December 17, 2020Date of Patent: March 28, 2023Assignee: 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
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Publication number: 20230071547Abstract: 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: ApplicationFiled: October 28, 2022Publication date: March 9, 2023Applicant: IPLA Holdings Inc.Inventors: Allan Y. TSAI, Qing LI, Guodong ZHANG, Yifan LI, Lakshmi R. IYER, Pascal M. ADJAKPLE, Mohamed AWADIN, Joseph M. MURRAY
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Publication number: 20230035989Abstract: 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: ApplicationFiled: September 25, 2020Publication date: February 2, 2023Inventors: 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
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Publication number: 20230033917Abstract: 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: ApplicationFiled: September 22, 2022Publication date: February 2, 2023Applicant: IPLA HOLDINGS INC.Inventors: Wei CHEN, Pascal M. ADJAKPLE, Joseph M. MURRAY, Allan Y. TSAI, Lakshmi R. IYER
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Patent number: 11569934Abstract: 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: GrantFiled: March 11, 2022Date of Patent: January 31, 2023Assignee: IPLA HOLDINGS INC.Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Qing Li, Joseph M. Murray
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Patent number: 11564170Abstract: 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: GrantFiled: May 4, 2018Date of Patent: January 24, 2023Assignee: IPLA HOLDINGS INC.Inventors: Guodong Zhang, Pascal M. Adjakple, Joseph M. Murray, Lakshmi R. Iyer
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Publication number: 20220416972Abstract: 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: ApplicationFiled: June 23, 2022Publication date: December 29, 2022Inventors: Yifan Li, Lakshmi R. Iyer, Joseph M. Murray, Allan Y. Tsai, Guodong Zhang, Qing Li
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Patent number: 11533742Abstract: 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: GrantFiled: May 10, 2019Date of Patent: December 20, 2022Assignee: IPLA Holdings Inc.Inventors: Allan Y. Tsai, Qing Li, Guodong Zhang, Yifan Li, Lakshmi R. Iyer, Pascal M. Adjakple, Mohamed Awadin, Joseph M. Murray
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Publication number: 20220377790Abstract: 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: ApplicationFiled: October 2, 2020Publication date: November 24, 2022Inventors: Mohamed AWADIN, Qing LI, Lakshmi R. IYER, Yifan LI, Allan Y. TSAI, Pascal M. ADJAKPLE, Patrick SVEDMAN, Guodong ZHANG
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Patent number: 11510119Abstract: 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: GrantFiled: May 20, 2021Date of Patent: November 22, 2022Assignee: IPLA HOLDINGS INC.Inventors: Wei Chen, Pascal M. Adjakple, Joseph M. Murray, Allan Y. Tsai, Lakshmi R. Iyer
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Publication number: 20220369225Abstract: 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: ApplicationFiled: October 2, 2020Publication date: November 17, 2022Inventors: Lakshmi R. IYER, Qing LI, Patrick SVEDMAN, Guodong ZHANG, Mohamed AWADIN, Yifan LI, Allan Y. TSAI, Pascal M. ADJAKPLE
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Patent number: 11503495Abstract: Logical Channel Prioritization (LCP) may be enhanced by accounting for Quality of Service (QoS) attributes of single hop and multi-hop paths. QoS attributes may be communicated as a QoS budget comprising a number of attributes, or as a single composite QoS “resistance” factor that quantifies the compounded impact of number of hops, latency, load conditions, and the like. The QoS budget or resistance may dynamically adjusted, and may be used by LCP to provide differentiated uplink resource allocation to data of the bearer or logical channel subject to different transmission paths between the transmitter and the receiver, for example. QoS budget and resistance information may be used to, e.g., enhance Buffer Status Report (BSR) and Scheduling Request (SR) operations.Type: GrantFiled: June 20, 2019Date of Patent: November 15, 2022Assignee: IPLA HOLDINGS INC.Inventors: Pascal M. Adjakple, Stephen E. Terry, Qing Li, Joseph M. Murray, Lakshmi R. Iyer, Guodong Zhang, Mohamed Awadin, Yifan Li, Allan Y. Tsai
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Publication number: 20220360950Abstract: Disclosed herein are methods and apparatus for HARQ feedback in NR Uu groupcast or broadcast, including methods for assigning and releasing the groupcast RNTI for Uu groupcast or broadcast, methods for enabling and disabling the HARQ feedback for Uu groupcast or broadcast, and methods for HARQ feedback and corresponding resource allocation for Uu groupcast or broadcast, including ACK-NACK based Uu groupcast HARQ feedback, NACK only based Uu groupcast HARQ feedback, and Enhanced ACK-NACK based Uu groupcast HARQ feedback. Also disclosed herein are methods for collision handling between HARQ feedback for Uu broadcast/groupcast and other transmissions.Type: ApplicationFiled: October 2, 2020Publication date: November 10, 2022Applicant: IPLA Holdings Inc.Inventors: Yifan LI, Qing LI, Patrick SVEDMAN, Allan Y. TSAI, Mohamed AWADIN, Kyle PAN, Lakshmi R. IYER, Pascal M. ADJAKPLE, Guodong ZHANG
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Publication number: 20220361180Abstract: The present application at least describes a frame structure in new radio. The frame structure includes a self-contained transmission time interval. The transmission time interval includes a control information region including plural beams. The interval also includes a downlink transmission channel region including plural beams. The frame structure is configured for downlink control information to be swept through the time interval. The frame structure is also configured for an uplink or downlink grant resource subsequently to be swept through the time interval. The present application is also directed to a method for configuring user equipment.Type: ApplicationFiled: July 21, 2022Publication date: November 10, 2022Inventors: Lakshmi R. Iyer, Allan Y. Tsai, Tianyi Xu, Guodong Zhang, Pascal M. Adjakple, Ahmed ElSamadouny, Yifan Li
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Publication number: 20220330320Abstract: 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: ApplicationFiled: June 16, 2022Publication date: October 13, 2022Applicant: IPLA Holdings Inc.Inventors: Pascal M. ADJAKPLE, Joseph M. MURRAY, Guodong ZHANG, Lakshmi R. IYER, Wei CHEN, Stephen E. TERRY
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Publication number: 20220322325Abstract: An electronic device including a transceiver to communicate with a network; and circuitry. The circuitry is configured to perform beam failure detection on a monitored cell; detect a beam failure on the monitored cell; determine at least one new set of candidate beam reference signals (CB-RSs) from at least one set of CB-RS configured for the device; determine if any CB-RS in the at least one new set of CB-RSs meets a criterion, and in a case that any CB-RS in the at least one new set of CB-RSs meets the criterion: select a beam corresponding to a CB-RS in the new set that meets the criterion as the new beam, and indicate the selected new beam to the network; and in a case that no CB-RS in the new set of CB-RS meets a criterion, indicate to the network that no CB-RS in the new set meets the criterion.Type: ApplicationFiled: June 25, 2020Publication date: October 6, 2022Inventors: Patrick SVEDMAN, Qing LI, Mohamed AWADIN, Yifan LI, Allan Y. TSAI, Gudon ZHANG, Lakshmi R. IYER
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Publication number: 20220312484Abstract: A method may perform random access subject to Listen-Before-Talk (LBT) in an NR-U Serving Cell with multiple models. Enhancements may be to the Random Access Preamble Transmission procedure to enable autonomous BWP Switching or sub-band in the event the channel is busy for the active UL BWP.Type: ApplicationFiled: June 16, 2022Publication date: September 29, 2022Applicant: IPLA HOLDINGS INC.Inventors: Joseph M. MURRAY, Pascal M. ADJAKPLE, Lakshmi R. IYER, Mohamed AWADIN, Allan Y. TSAI, Yifan LI, Guodong ZHANG
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Publication number: 20220312395Abstract: Downlink Control Information (DCI) may be expanded, or enhanced, to allow nodes such as UEs, eNBs, NR-nodes, gNBs, and TRPs in M2M, IoT, WoT networks to coordinate activities on PHY, MAC, and RRC layers. For example, DCI fields may be added or enhanced to include, for example, information regarding time resource allocation, frequency resource allocation, mini-slot allocation, and or Code Block Group (CBG) transmission. Such information, or similar information, may be used in operations such as mini-slot operations, Code Block Group (CBG) transmission, group common Physical Downlink Control Channel (PDCCH), grant-free and grant-less operations, response to Beam Failure Recovery Request (BFRR), UL Transmit (TX) beam change, Quasi-Co-Location (QCL) operations, aperiodic CSI-RS transmission and interference measurement, Band Width Part (BWP) operations, and Multi-Transmission and Reception Point (TRP)/Multi-Panel.Type: ApplicationFiled: June 6, 2022Publication date: September 29, 2022Applicant: IPLA HOLDINGS INC.Inventors: Qing LI, Guodong ZHANG, Yifan LI, Allan Y. TSAI, Lakshmi R. IYER
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Publication number: 20220295589Abstract: Methods, systems, and devices may support BFD with multi-TRP transmission or support BFR with multi-TRP transmission, among other things. For BFD with multi-TRP transmission, there may be the explicit configuration or implicit configuration. With regard to BFR with multi-TRP transmission there may: BFR using contention-free PRACH, BFR using PUCCH, BFR using contention-free 2-step RACH, or BFR using PUSCH.Type: ApplicationFiled: August 14, 2020Publication date: September 15, 2022Inventors: Allan Y. TSAI, Patrick SVEDMAN, Qing LI, Guodong ZHANG, Lakshmi R. IYER, Yifan LI, Mohamed AWADIN
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Publication number: 20220287093Abstract: The present application at least describes a method for obtaining channel access in a network. The method includes a step of selecting, via a gNodeB, a spatial filter from a first set of spatial filters to perform listen before talk (LBT). The method includes a step of detecting, via the gNodeB, a channel in an idle state. The method also includes a step of obtaining, a directional channel occupancy time (COT) in the channel in a direction of the selected spatial filter. The method also includes a step of transmitting, to a node, a channel access indicator transmission (CAI-T) on a beam in the cot via a spatial filter of a second set of spatial filters. The method further includes a step of receiving, from the node, a channel access indicator response (CAI-R). The method further includes a step of sensing, via short channel sensing and via the spatial filter or another spatial filter of the second set of spatial filters, the channel is clear.Type: ApplicationFiled: August 14, 2020Publication date: September 8, 2022Inventors: Lakshmi R. IYER, Qing LI, Mohamed AWADIN, Guodong ZHANG, Pascal M. ADJAKPLE, Yifan LI, Zhuo CHEN, Allan Y. TSAI