Patents by Inventor Rohit U. Nabar
Rohit U. Nabar 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: 12207100Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include a phased antenna array. Sensors and other circuitry in the electronic device may generate sensor data such as accelerometer data, gyroscope data, magnetometer data, location data, and spatial ranging data. The wireless circuitry may establish and maintain one or more wireless links with external devices based on the sensor data as the device moves over time. For example, the wireless circuitry may perform physical layer beam adjustments, inter-radio access technology handovers, intra-radio access technology handovers, and/or dual connectivity adjustments based on the sensor data. This may allow the device to maintain one or more wireless links without having to sweep the signal beam of the phased antenna array over its entire field of view each time the device has moved.Type: GrantFiled: March 22, 2021Date of Patent: January 21, 2025Assignee: Apple Inc.Inventors: Yakun Sun, Mingguang Xu, Mithat C. Dogan, Ehsan Haghani, Rohit U. Nabar, Matthew A. Mow
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Patent number: 12191970Abstract: The present application relates to devices and components including apparatus, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, angle of arrival estimates may be utilized for determining the beam for communication.Type: GrantFiled: December 20, 2023Date of Patent: January 7, 2025Assignee: Apple Inc.Inventors: Yakun Sun, Rohit U. Nabar, Mithat C. Dogan, Parvathanathan Subrahmanya, Han Yan, Louay Jalloul
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Publication number: 20240381305Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.Type: ApplicationFiled: July 9, 2024Publication date: November 14, 2024Inventors: Anatoliy Sergey Ioffe, Rohit U. Nabar, Rastislav Vazny
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Patent number: 12137440Abstract: Methods and systems include beamformed wireless communications to and from a user equipment electronic device. During operation of the user equipment electronic device, a change in slot aggregation is made. Using the aggregated slots, the user equipment electronic device and/or a wireless network utilize beam sweeps to determine a best beam pairing by repeating a shared channel in the aggregated slots with a beam sweep of multiple beams between the user equipment electronic device and the wireless network.Type: GrantFiled: September 7, 2022Date of Patent: November 5, 2024Assignee: Apple Inc.Inventors: Yakun Sun, Anatoliy S. Ioffe, Ehsan Haghani, Rohit U. Nabar
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Patent number: 12132551Abstract: Methods and apparatuses are disclosed for performing fast beam tracking in a wireless communication environment. A UE signals to a gNB its capabilities for intra-symbol beam sweeping. Depending on configuration, the UE can either assume that the intra-symbol beam sweeping configuration will be implemented, or will await a response from the gNB before implementing intra-symbol beam sweeping. Although this is generally carried out during initial access between the UE and the gNB, the beam sweeping configuration can be dynamically updated by either the UE or the gNB during established communication. For example, the UE can signal a desired change via its MAC CE, and the gNB can signal its change to the UE via DCI.Type: GrantFiled: August 5, 2020Date of Patent: October 29, 2024Assignee: APPLE INC.Inventors: Yushu Zhang, Haitong Sun, Yakun Sun, Weidong Yang, Wei Zeng, Dawei Zhang, Rohit U. Nabar
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Patent number: 12119895Abstract: Methods and apparatus provide for a wireless network to enable multiple-transmission reception point (multi-TRP) uplink (UL) time division multiplexed (TDMed) repetition transmission. The network may receive, from a user equipment (UE), beam measurements of downlink reference signals associated with a plurality of UL transmission beams from the UE to the multi-TRP. Based on criteria associated with the beam measurements received from the UE, the network enables the UE for the multi-TRP UL TDMed repetition transmission using the plurality of UL transmission beams. In addition, or in other scenarios, coordination is provided between the network and the UE to improve UL TDMed repetition transmissions when a UE switches between antenna panels.Type: GrantFiled: March 31, 2021Date of Patent: October 15, 2024Assignee: APPLE INC.Inventors: Manasa Raghavan, Dawei Zhang, Haitong Sun, Huaning Niu, Jie Cui, Qiming Li, Rohit U. Nabar, Xiang Chen, Yakun Sun, Yang Tang, Yushu Zhang
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Publication number: 20240314699Abstract: Methods and systems for controlling uplink (UL) transmission power of a user equipment (UE) electronic device includes determining, using the UE electronic device, that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions. Based on the determination that maximum power availability is not appropriate the UE electronic device sends a request to the wireless network node to reduce power for communication with the wireless network node. Based on the request, the UE electronic device communicates at a reduced power level for communications with the wireless network node.Type: ApplicationFiled: May 28, 2024Publication date: September 19, 2024Inventors: Yakun Sun, Anatoliy S. Ioffe, Ehsan Haghani, Rohit U. Nabar
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Patent number: 12063621Abstract: Systems and methods for using ranging signals with cellular devices. The ranging signals may utilize ranging slots and resources at least partially allocated by a cellular network. The resources may include frequencies used for uplink or downlink communications between the cellular network and the cellular devices. Alternatively, the resources may include frequencies outside of a spectrum used for communication between the cellular network and the cellular devices.Type: GrantFiled: January 14, 2022Date of Patent: August 13, 2024Assignee: Apple Inc.Inventors: Anatoliy Sergey Ioffe, Rohit U. Nabar, Rastislav Vazny
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Patent number: 12028813Abstract: Methods and systems for controlling uplink (UL) transmission power of a user equipment (UE) electronic device includes determining, using the UE electronic device, that a maximum power availability for a transmission between the UE and a wireless network node is not appropriate to current conditions. Based on the determination that maximum power availability is not appropriate the UE electronic device sends a request to the wireless network node to reduce power for communication with the wireless network node. Based on the request, the UE electronic device communicates at a reduced power level for communications with the wireless network node.Type: GrantFiled: April 13, 2022Date of Patent: July 2, 2024Assignee: Apple Inc.Inventors: Yakun Sun, Anatoliy S. Ioffe, Ehsan Haghani, Rohit U. Nabar
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Publication number: 20240162970Abstract: The present application relates to devices and components including apparatus, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, angle of arrival estimates may be utilized for determining the beam for communication.Type: ApplicationFiled: December 20, 2023Publication date: May 16, 2024Applicant: Apple Inc.Inventors: Yakun Sun, Rohit U. Nabar, Mithat C. Dogan, Parvathanathan Subrahmanya, Han Yan, Louay Jalloul
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Patent number: 11943024Abstract: The present application relates to devices and components including apparatus, systems, and methods to provide beamforming scheme selection and signaling in wireless communication systems.Type: GrantFiled: June 14, 2021Date of Patent: March 26, 2024Assignee: Apple Inc.Inventors: Yushu Zhang, Dawei Zhang, Haitong Sun, Rohit U. Nabar, Wei Zeng, Weidong Yang, Yakun Sun
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Patent number: 11902003Abstract: Systems and methods related to partial beam correspondence may be used to address potential limitations of beamforming wireless networks. A user equipment electronic device and/or wireless network identifies a subset of available transmitter beams for the user equipment electronic device that are indicated as similar to a downlink reference signal received at the user equipment electronic device from a wireless network node. The user equipment electronic device sweeps the subset of available transmitter beams for communication with the wireless network node and uses a best beam from the sweep to communicate with the wireless network node.Type: GrantFiled: December 10, 2021Date of Patent: February 13, 2024Assignee: Apple Inc.Inventors: Yakun Sun, Anatoliy S. Ioffe, Ehsan Haghani, Rohit U. Nabar
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Patent number: 11894909Abstract: The present application relates to devices and components including apparatus, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, angle of arrival estimates may be utilized for determining the beam for communication.Type: GrantFiled: August 1, 2022Date of Patent: February 6, 2024Assignee: APPLE INC.Inventors: Yakun Sun, Rohit U. Nabar, Mithat C. Dogan, Parvathanathan Subrahmanya, Han Yan, Louay Jalloul
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Publication number: 20230421295Abstract: A preamble of physical layer (PHY) data unit includes a first legacy portion and a first non-legacy portion that follows the first legacy portion. The first non-legacy portion includes i) a first orthogonal frequency division multiplexing (OFDM) symbol that immediately follows the first legacy portion and that is modulated using binary phase shift keying (BPSK), and ii) a second OFDM symbol that immediately follows the first OFDM symbol and that is modulated using BPSK modulation rotated by 90 degrees (Q-BPSK). The modulation of the first and second OFDM symbols indicates to a receiver device that conforms to a first communication protocol that the data unit conforms to the first communication protocol. The first OFDM symbol being modulated using BPSK modulation causes a receiver device that conforms to a second communication protocol to determine that the PHY data unit conforms to a third communication protocol.Type: ApplicationFiled: September 11, 2023Publication date: December 28, 2023Inventors: Hongyuan ZHANG, Hui-Ling LOU, Rohit U. NABAR, Sudhir SRINIVASA, Mao YU, Raja BANERJEA
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Patent number: 11757570Abstract: A first portion of a physical layer (PHY) preamble of a PHY data unit is generated for transmission via a communication channel that comprises a plurality of sub-channels. A first portion of the PHY preamble is generated to include a legacy portion and a plurality of first non-legacy signal fields spanning the respective sub-channels. A second portion of a PHY preamble that immediately follows the first portion of the PHY preamble of the PHY data unit is generated to include: a non-legacy short training field spanning all sub-channels in the plurality of sub-channels, a plurality of non-legacy long training fields immediately following the non-legacy short training field, each non-legacy training field spanning all sub-channels in the plurality of sub-channels, and a second non-legacy signal field immediately following the plurality of non-legacy long training fields, the second-legacy signal field spanning all sub-channels in the plurality of sub-channels.Type: GrantFiled: May 28, 2021Date of Patent: September 12, 2023Assignee: Marvell Asia Pte LtdInventors: Hongyuan Zhang, Hui-Ling Lou, Rohit U. Nabar, Sudhir Srinivasa, Mao Yu, Raja Banerjea
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Patent number: 11751176Abstract: Methods and systems include beamformed wireless communications to and from a user equipment electronic device. During operation of the user equipment electronic device, a change in slot aggregation is made. Using the aggregated slots, the user equipment electronic device and/or a wireless network utilize beam sweeps to determine a best beam pairing by repeating a shared channel in the aggregated slots with a beam sweep of multiple beams between the user equipment electronic device and the wireless network.Type: GrantFiled: November 1, 2019Date of Patent: September 5, 2023Assignee: Apple Inc.Inventors: Yakun Sun, Anatoliy S. Ioffe, Ehsan Haghani, Rohit U. Nabar
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Publication number: 20230208475Abstract: Methods and apparatus provide for a wireless network to enable multiple-transmission reception point (multi-TRP) uplink (UL) time division multiplexed (TDMed) repetition transmission. The network may receive, from a user equipment (UE), beam measurements of downlink reference signals associated with a plurality of UL transmission beams from the UE to the multi-TRP. Based on criteria associated with the beam measurements received from the UE, the network enables the UE for the multi-TRP UL TDMed repetition transmission using the plurality of UL transmission beams. In addition, or in other scenarios, coordination is provided between the network and the UE to improve UL TDMed repetition transmissions when a UE switches between antenna panels.Type: ApplicationFiled: March 31, 2021Publication date: June 29, 2023Inventors: Manasa Raghavan, Dawei Zhang, Haitong Sun, Huaning Niu, Jie Cui, Qiming Li, Rohit U. Nabar, Xiang Chen, Yakun Sun, Yang Tang, Yushu Zhang
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Publication number: 20230155658Abstract: Methods and apparatuses are disclosed for performing fast beam tracking in a wireless communication environment. A UE signals to a gNB its capabilities for intra-symbol beam sweeping. Depending on configuration, the UE can either assume that the intra-symbol beam sweeping configuration will be implemented, or will await a response from the gNB before implementing intra-symbol beam sweeping. Although this is generally carried out during initial access between the UE and the gNB, the beam sweeping configuration can be dynamically updated by either the UE or the gNB during established communication. For example, the UE can signal a desired change via its MAC CE, and the gNB can signal its change to the UE via DCI.Type: ApplicationFiled: August 5, 2020Publication date: May 18, 2023Applicant: Apple Inc.Inventors: Yushu ZHANG, Haitong SUN, Yakun SUN, Weidong YANG, Wei ZENG, Dawei ZHANG, Rohit U. NABAR
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Publication number: 20230143225Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).Type: ApplicationFiled: August 3, 2022Publication date: May 11, 2023Inventors: Sharad Sambhwani, Dirk Nickisch, Madhukar K Shanbhag, Rohit U Nabar, Sanjeevi Balasubramanian, Shiva Krishna Narra, Sriram Subramanian, Tarik Tabet, Vishwanth Kamala Govindaraju, Yakun Sun, Parvathanathan Subrahmanya
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Publication number: 20230148128Abstract: User equipment in close proximity may transfer data and control information. For example, the user equipment may exchange data or data sets between each other. Each user equipment can receive and transmit data using radio access technologies. A group of user equipments may include active user equipment and passive user equipment. Active user equipment connects with one or more base stations and transfers data on a wireless communication network via the base station. The active user equipment may communicate with other active user equipment and passive user equipment. Passive user equipment may not connect to any base station and/or the wireless communication network and may communicate with other passive user equipment and active user equipment (e.g., via a sidelink, peer-to-peer, or device-to-device channel).Type: ApplicationFiled: August 3, 2022Publication date: May 11, 2023Inventors: Sharad Sambhwani, Dirk Nickisch, Madhukar K Shanbhag, Rohit U Nabar, Sanjeevi Balasubramanian, Shiva Krishna Narra, Sriram Subramanian, Tarik Tabet, Vishwanth Kamala Govindaraju, Yakun Sun, Parvathanathan Subrahmanya