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公开(公告)号：US20210076452A1
公开(公告)日：2021-03-11
申请号：US17098696
申请日：2020-11-16
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul ISLAM , Juergen Cezanne , Ashwin Sampath , Vasanthan Raghavan , Jianghong Luo , Sundar Subramanian , Sumeeth Nagaraja
Abstract: Methods, systems, and devices for wireless communication are described. A base station may initiate a beam management procedure, including reference signal transmission to a user equipment (UE) and receive beam training. A base station may configure a UE to monitor a set of beams for reference signals. Based on the received reference signals, the UE may optionally select one or more transmit beams for wakeup signal reception, and may transmit an indication of the selected beams to the base station. The base station may transmit a wakeup signal over the originally configured or the UE-selected transmit beams to initiate wake-up procedure at the UE. The base station and UE may subsequently perform a refined beam management procedure, providing a refined reference signal transmission from the base station. Based on the received transmission, the UE may select a refined beam for downlink transmissions.
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公开(公告)号：US10944452B2
公开(公告)日：2021-03-09
申请号：US15618969
申请日：2017-06-09
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Sundar Subramanian , Junyi Li , Vasanthan Raghavan
Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.
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公开(公告)号：US10939395B2
公开(公告)日：2021-03-02
申请号：US16035314
申请日：2018-07-13
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo , Bilal Sadiq , Muhammad Nazmul Islam , Sundar Subramanian
Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.
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公开(公告)号：US10932270B2
公开(公告)日：2021-02-23
申请号：US15997490
申请日：2018-06-04
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Bilal Sadiq , Tao Luo , Sundar Subramanian , Muhammad Nazmul Islam , Junyi Li , Vasanthan Raghavan , Navid Abedini , Sumeeth Nagaraja , Raghu Narayan Challa
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine whether to perform a beam pair refinement procedure with regard to the UE and a base station; and/or transmit, to the base station, information regarding whether to perform the beam pair refinement procedure. In some aspects, a base station may receive, from a UE, information regarding a beam pair refinement procedure with regard to the UE; and/or perform the beam pair refinement procedure based at least in part on the information. Numerous other aspects are provided.
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公开(公告)号：US10924232B2
公开(公告)日：2021-02-16
申请号：US15357055
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Juergen Cezanne , Sundar Subramanian , Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a subframe that includes physical broadcast channel (PBCH) signals interspersed within beam reference signals, where the subframe may be a synchronization subframe including one or more synchronization signals. In some cases, the beam reference signals from different antenna ports may be code division multiplexed or frequency division multiplexed over multiple frequency tones. A user equipment (UE) may use the beam reference signals to generate channel estimates for the PBCH signals. In some cases, orthogonal cover codes for code division multiplexed signals may be selected to facilitate generation of channel estimates for PBCH signals transmitted using nearby frequency tones.
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Patent Agency Ranking
公开(公告)号：US20210045132A1
公开(公告)日：2021-02-11
申请号：US17068408
申请日：2020-10-12
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Junyi Li , Juergen Cezanne , Navid Abedini , Bilal Sadiq , Tao Luo , Ashwin Sampath
Abstract: Techniques are described for wireless communication. One method includes exchanging one or more signals between a first wireless node and a second wireless node, determining, at the first wireless node and based on the one or more signals, a range of correspondence between at least one of a transmit beam of the first wireless node and a receive beam of the first wireless node, determining a difference between indices of the transmit beam of the first wireless node and the receive beam of the first wireless node, and determining an uncertainty region for beam mapping based on the determined difference.
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公开(公告)号：US10855328B1
公开(公告)日：2020-12-01
申请号：US16503011
申请日：2019-07-03
Applicant: QUALCOMM Incorporated
Inventor： Kapil Gulati , Junyi Li , Jayakrishnan Unnikrishnan , Sundar Subramanian
IPC: H04B1/711 , H04B1/7103 , H04L27/26 , H04B7/0456 , H04J13/00 , H04B17/354 , H04B1/69
Abstract: Methods, systems, computer-readable media, and apparatuses for transmitting and receiving radar signals from a radar source while minimizing interference with other radar sources are presented. A transmit signal comprising a first chirp sequence is generated according to a set of waveform parameters, with least one waveform parameter being varied for one or more chirps in the first chirp sequence. Additionally, each chirp of the first chirp sequence can be phase-modulated. A receive signal comprising a second chirp sequence and corresponding to the transmit signal reflected off an object in a surrounding environment is then sampled to determine one or more attributes of the object. In some embodiments, the attributes include distance and speed values calculated using Discrete Fourier Transforms (DFTs). Other attributes that can be calculated from the receive signal include azimuth angle and elevation angle.
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公开(公告)号：US20200322020A1
公开(公告)日：2020-10-08
申请号：US16910534
申请日：2020-06-24
Applicant: QUALCOMM INCORPORATED
Inventor： Muhammad Nazmul Islam , Bilal Sadiq , Ashwin Sampath , Sundar Subramanian , Junyi Li , Vasanthan Raghavan
Abstract: Methods, systems, and devices for wireless communication are described. A network device, such as a base station, may transmit a request message to a user equipment (UE). The request message may include a request for the UE to transmit a set of sounding reference signals (SRSs). The set of SRSs may include two (or more) beamformed signals. The network device may receive the set of SRSs according to the request message. The network device may identify, based on a co-phasing parameter associated with the two (or more) beamformed signals, an antenna port precoder configuration to use for communicating with the UE.
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279.发明申请公开(公告)号：US20200260501A1
公开(公告)日：2020-08-13
申请号：US16859863
申请日：2020-04-27
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Junyi Li , Navid Abedini , Bilal Sadiq
IPC: H04W74/08 , H04B7/06 , H04B7/08 , H04L5/00 , H04W48/20 , H04W16/28 , H04W72/08 , H04W56/00 , H04W72/04 , H04W72/02
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a downlink (DL) signal from a base station on one or more DL beam(s). The UE may identify a selected DL beam of the one or more DL beam(s) for communications from the base station to the UE. The UE may transmit a scheduling request message to the base station using at least one of a resource or a waveform selected based at least in part on the selected DL beam.
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280.发明授权公开(公告)号：US10728893B2
公开(公告)日：2020-07-28
申请号：US15361878
申请日：2016-11-28
Applicant: QUALCOMM Incorporated
Inventor： Sundar Subramanian , Joseph Binamira Soriaga , Ashwin Sampath , Junyi Li , Juergen Cezanne , Tingfang Ji , Alexei Yurievitch Gorokhov , Muhammad Nazmul Islam
Abstract: A structure where there are self-contained subframes/slots with smaller TTIs within the subframes/slots is provided to address the issues in MMW scheduling. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may transmit downlink information to at least one UE using a plurality of downlink TTIs within a subframe/slot. The apparatus may receive uplink information from the at least one UE using at least one uplink region within the subframe/slot. In another aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive downlink information from a base station using at least one downlink TTI within a subframe/slot. The subframe/slot may include a plurality of downlink TTIs and at least one uplink region. The apparatus may transmit uplink information to the base station using the at least one uplink region within the subframe/slot.
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