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公开(公告)号：US10700753B2
公开(公告)日：2020-06-30
申请号：US16267303
申请日：2019-02-04
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Juergen Cezanne , Junyi Li , Sundar Subramanian , Tao Luo , Raghu Narayan Challa , Ruhua He , Yong Li , Jun Zhu , Tianyang Bai
Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication. In some aspects, the scheduled entity detects a fluctuation in a beam strength of at least one transmit beam from a scheduling entity. The scheduled entity transmits a first message to the scheduling entity, the first message indicating at least the fluctuation in the beam strength of the at least one transmit beam from the scheduling entity.
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公开(公告)号：US20200178119A1
公开(公告)日：2020-06-04
申请号：US16784631
申请日：2020-02-07
Applicant: QUALCOMM INCORPORATED
Inventor： Makesh Pravin John Wilson , Tao Luo , Jing Jiang , Sundar Subramanian , Sony Akkarakaran , Atul Maharshi , Krishna Kiran Mukkavilli
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may report a phase-noise compensation reference signal (PCRS) configuration to a base station to enable per-UE PCRS signaling. For example, a UE may operate in a wireless communications system using carrier frequencies greater than 6 GHz, which may be affected by phase noise. The UE may accordingly determine a PCRS configuration based on a capability to receive signals. The PCRS configuration may include a resource mapping for one or more PCRS, a number of PCRS ports used for PCRS, a multiplexing scheme for one or more PCRS ports, or the UE's phase noise estimation capability. The UE may then transmit a reporting message including the PCRS configuration to a base station. The base station may use the PCRS configuration for PCRS transmissions to the UE.
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公开(公告)号：US10659135B2
公开(公告)日：2020-05-19
申请号：US14306114
申请日：2014-06-16
Applicant: QUALCOMM Incorporated
Inventor： Sundar Subramanian , Junyi Li , Ashwin Sampath
Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives reference timing information, determines one or more timeslots for transmitting a beacon based on the reference timing information, and transmits the beacon during a timeslot of the one or more timeslots. The beacon is transmitted in one or more directions respectively corresponding to a number of subslots of the timeslot. In another aspect, the apparatus determines a timeslot for receiving at least one beacon respectively from at least one connection point based on the reference timing information, wakes during the timeslot, monitors for the at least one beacon in one or more directions respectively corresponding to a number of subslots of the timeslot, and receives the at least one beacon in the at least one timeslot in at least one direction of the one or more directions.
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公开(公告)号：US10595322B2
公开(公告)日：2020-03-17
申请号：US15197523
申请日：2016-06-29
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Juergen Cezanne , Krishna Kiran Mukkavilli , Ashwin Sampath , Junyi Li
Abstract: Methods, systems, and apparatuses are described for wireless communication at a base station. The base station may transmit a control message to a set of user equipments (UEs) using a directional transmission having a first beamform width. The base station may exchange, according to the control message, data messages with a first UE of the set of UEs using a directional transmission having a second beamform width. The second beamform width may be different from the first beamform width. The base station may exchange, according to the control message, data messages with a second UE of the set of UEs using a directional transmission having a third beamform width. The third beamform width may be different from the first beamform width, the second beamform width, or both.
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公开(公告)号：US10595225B2
公开(公告)日：2020-03-17
申请号：US15436531
申请日：2017-02-17
Applicant: QUALCOMM Incorporated
Inventor： Makesh Pravin John Wilson , Tao Luo , Jing Jiang , Sundar Subramanian , Sony Akkarakaran , Atul Maharshi , Krishna Kiran Mukkavilli
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may report a phase-noise compensation reference signal (PCRS) configuration to a base station to enable per-UE PCRS signaling. For example, a UE may operate in a wireless communications system using carrier frequencies greater than 6 GHz, which may be affected by phase noise. The UE may accordingly determine a PCRS configuration based on a capability to receive signals. The PCRS configuration may include a resource mapping for one or more PCRS, a number of PCRS ports used for PCRS, a multiplexing scheme for one or more PCRS ports, or the UE's phase noise estimation capability. The UE may then transmit a reporting message including the PCRS configuration to a base station. The base station may use the PCRS configuration for PCRS transmissions to the UE.
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Patent Agency Ranking
公开(公告)号：US20200033442A1
公开(公告)日：2020-01-30
申请号：US16512267
申请日：2019-07-15
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Junyi Li , Sundar Subramanian , Jayakrishnan Unnikrishnan
Abstract: A method and apparatus for selecting frequency modulated continuous wave waveform parameters for multiple radar coexistence by a user equipment is described. The user equipment may transmit a radar waveform consisting of a number of chirps, with each chirp having a same duration. The user equipment may vary waveform parameters of the radar waveform for at least a subset of the number of chirp, where the waveform parameters may be chosen from a codebook comprising at least one codeword of parameters. Reflected radar waveforms are received and processed where the processing includes applying a fast time discrete Fourier transform to reflected radar waveforms to produce a one dimension peak in a time delay dimension for each reflected waveform; and applying a slow time discrete Fourier transform to the reflected radar waveforms, where peaks for the reflected waveforms are added.
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公开(公告)号：US10541741B2
公开(公告)日：2020-01-21
申请号：US15488402
申请日：2017-04-14
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Bilal Sadiq , Tao Luo , Sundar Subramanian , Junyi Li
IPC: H04M1/00 , H04B7/08 , H04B7/06 , H01Q1/24 , H04B7/0404 , H04B7/0417 , H04W16/28 , H04W28/02 , H04W40/24 , H04W74/08
Abstract: Methods, apparatuses, and computer-readable mediums associated with a user equipment (UE) and a base station are provided for herein. In aspects, a UE may receive, from a base station, a beam modification command indicating at least one beam index for communicating through at least one beam on at least one channel. In an aspect, each beam index of the at least one beam index may indicate at least a direction for communicating through a corresponding beam of the at least one beam. The UE may communicate, with the base station, through the at least one beam corresponding to the at least one beam index on the at least one channel.
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公开(公告)号：US10536209B2
公开(公告)日：2020-01-14
申请号：US15915755
申请日：2018-03-08
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Tianyang Bai , Sundar Subramanian , Vasanthan Raghavan , Ashwin Sampath
IPC: H04B7/06 , H04B7/0426
Abstract: Various aspects described herein relate to techniques for beam discovery and beamforming in wireless communications (e.g., 5th Generation (5G) New Radio (NR)). In an aspect, a method related to signaling for channel state information reference signals (CSI-RSs) in wireless communications is provided. The method includes receiving, by a user equipment (UE), a CSI-RS beam of a set of CSI-RS beams, and the CSI-RS beam includes a change indication message. The method further includes determining, by the UE, whether the set of CSI-RS beams have changed based on a value of the change indication message.
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公开(公告)号：US10447517B2
公开(公告)日：2019-10-15
申请号：US15594408
申请日：2017-05-12
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Navid Abedini , Juergen Cezanne , Sundar Subramanian , Tao Luo
Abstract: Various features related to using a multi-port synchronization signal as reference for demodulating a multi-port broadcast channel are described. In an aspect, a synchronization signal, e.g., SSS, may be repurposed to serve as a demodulation reference for a downlink channel, e.g., PBCH, thereby obviating the need for a base station to send an additional reference signal for PBCH demodulation. A base station may select two or more logical antenna ports to transmit a synchronization signal, transmit the synchronization signal from the selected two or more logical antenna ports, and transmit information on the PBCH, from at least the selected two or more logical antenna ports. A UE may receive the synchronization signal from the two or more logical antenna ports at the base station, receive information on the PBCH from the at least the two or more logical antenna ports, and demodulate the information based on the received synchronization signal.
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40.发明申请公开(公告)号：US20190293748A1
公开(公告)日：2019-09-26
申请号：US16354018
申请日：2019-03-14
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Junyi Li , Sundar Subramanian , Jayakrishnan Unnikrishnan
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, radio signals may reach a receiving antenna at a user equipment by two or more paths, which can cause interference (e.g., destructive multipath interference, constructive multipath interference, etc.). To reduce the interference, the user equipment may perform interference suppression, shaping, or both based on choosing radar waveform patterns that are varied across chirps. In one aspect, the user equipment (e.g., a vehicle) may identify waveform patterns selected by nearby vehicles based on side channel or centralized signaling and may suppress or shape interference by selecting waveform parameters based on this information. In one aspect, the pattern of waveform parameters is chosen from a codebook of patterns. The selected pattern can be broadcasted to the other vehicles using a side-communication channel.
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