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公开(公告)号：US20210175957A1
公开(公告)日：2021-06-10
申请号：US16949986
申请日：2020-11-23
Applicant: QUALCOMM INCORPORATED
Inventor： Vasanthan Raghavan , Junyi Li , Jung Ho Ryu , Tianyang Bai
Abstract: Wireless communications systems and methods related to coordinated beam refinement and coordinated beam failure recovery (BFR) in a wireless communication network are provided. A first wireless communication device communicates, with a second wireless communication device of a group of wireless communication devices, a communication signal using a first beam characteristic. The first wireless communication device receives, from the second wireless communication device, at least one of beam feedback information or a beam change request. The first wireless communication device transmits, to the group of wireless communication devices in response to the at least one of the beam feedback information or the beam change request, a beam configuration indicating a second beam characteristic to be used by the group of wireless communication devices for communicating with the first wireless communication device, the second beam characteristic being different from the first beam characteristic.
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公开(公告)号：US11032842B2
公开(公告)日：2021-06-08
申请号：US16535637
申请日：2019-08-08
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Junyi Li , Kiran Venugopal , Jung Ho Ryu , Makesh Pravin John Wilson , Tao Luo , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described that provide beam determination in beamformed wireless communications. A base station may transmit multiple repetitions of control information for a subsequent scheduled transmission. A user equipment (UE) may receive one of the multiple repetitions, determine the control information, and adjust beamforming parameters for the scheduled transmission. The UE may have a scheduling threshold that corresponds to a time needed for the UE to adjust beamforming parameters for the scheduled transmission, and the UE may identify the beamforming parameters for the scheduled transmission from any one of the multiple repetitions of control information, which may be transmitted using different downlink transmission beams, before or after the scheduling threshold, or combinations thereof.
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公开(公告)号：US11031992B2
公开(公告)日：2021-06-08
申请号：US16907098
申请日：2020-06-19
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Tianyang Bai , Vasanthan Raghavan , Juergen Cezanne , Pavan Kumar Vitthaladevuni , Alexandros Manolakos , Joseph Binamira Soriaga , Junyi Li , Naga Bhushan , Muhammad Nazmul Islam
IPC: H04B7/08 , H04W72/08 , H04B17/309 , H04W24/10 , H04B7/0417
Abstract: Disclosed are techniques for receive beam selection for measuring a reference radio frequency (RF) signal. In an aspect, a first node determines a type of measurement to be performed on the reference RF signal, selects a receive beam based on the type of measurement to be performed on the reference RF signal, generates the selected receive beam, receives, from a second node, using the generated receive beam, the reference RF signal transmitted on a wireless channel, and performs one or more measurements on the received reference RF signal according to the type of the measurement to be performed.
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公开(公告)号：US20210050892A1
公开(公告)日：2021-02-18
申请号：US16991782
申请日：2020-08-12
Applicant: QUALCOMM Incorporated
Inventor： Sungwoo Park , Kiran Venugopal , Tianyang Bai , Wooseok Nam , Tao Luo
Abstract: Methods, systems, and devices for wireless communications are described. A first device may transmit, to a second device, reference signals using combinations of analog beamforming parameters over multiple cycles. The reference signals may be transmitted for different combinations of transmit beamforming parameters and receive beamforming parameters over different cycles of the multiple cycles. The first device may receive, from the second device over the multiple cycles, a set of reports. Each report may indicate combinations of analog beamforming parameters selected for the analog beamforming parameters at the second device. Each combination of analog beamforming parameters may correspond to different cycles of the multiple cycles. The first device may set, for each radio frequency (RF) chain of a plurality of RF chains associated with the first device, a corresponding combination of analog beamforming parameters, and communicate with the second device via two or more beams based on the setting.
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公开(公告)号：US10924173B2
公开(公告)日：2021-02-16
申请号：US16162015
申请日：2018-10-16
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Navid Abedini , Juergen Cezanne , Muhammad Nazmul Islam , Vasanthan Raghavan , Jianghong Luo , Sundar Subramanian , Junyi Li
IPC: H04B7/06 , H04B7/0408 , H04B7/08 , H04W76/19 , H04W16/28 , H04B17/309 , H04B7/185 , H04W52/42
Abstract: High frequency wireless communication networks rely on directional transmit and receive beams to achieve large gains and overcome large pathlosses associated with high frequency signals. With highly directional signals, link failure may occur. Network nodes associated with the link failure, may need to identify new beam pairs and establish a new link as quickly as possible. In several aspects, beam sweep procedures are expedited, allowing for rapid link reestablishment. Disclosed techniques allow for rapid link reestablishment with and without beam correspondence.
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Patent Agency Ranking
公开(公告)号：US20210036817A1
公开(公告)日：2021-02-04
申请号：US16929053
申请日：2020-07-14
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Tao Luo , Junyi Li
IPC: H04L5/00 , H04W72/04 , H04B7/06 , H04B7/0404
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling configuring the UE to use a first waveform for communicating via a first beam and a second waveform for communicating via a second beam, the first waveform being different than the second waveform. The UE may communicate a first data transmission via the first beam using the first waveform and communicate a second data transmission via the second beam using the second waveform.
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公开(公告)号：US20210036743A1
公开(公告)日：2021-02-04
申请号：US16935715
申请日：2020-07-22
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Tao Luo , Junyi Li
IPC: H04B7/0417 , H04W72/04 , H04W80/02 , H04L1/00 , H04B17/336 , H04W76/27 , H04B7/06 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, feedback information that indicates delay spread information. The UE may receive control signaling that indicates to use a first waveform of a set of different waveforms for a first data transmission via a first beam based on the feedback information. The UE may then communicate the first data transmission via the first beam using the first waveform
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公开(公告)号：US20210014098A1
公开(公告)日：2021-01-14
申请号：US17037124
申请日：2020-09-29
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Sundar Subramanian , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described for phase error estimation and correction with sub-symbol resolution. A transmitting device may precode symbols (e.g., phase tracking reference signal (PT-RS) symbols) using a discrete Fourier transform (DFT). The transmitting device may map the DFT-precoded symbols to sets of adjacent subcarriers of a wireless signal, and may map other symbols to other subcarriers of the wireless signal. A receiving device may receive the wireless signal and may compare time domain representations of the DFT-precoded symbols with time domain representations of known reference symbols. The receiving device may estimate a phase error with sub-symbol resolution in the time domain based at least in part on the comparison, and may apply a phase correction in either the time or frequency domain to the other symbols.
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公开(公告)号：US20200304186A1
公开(公告)日：2020-09-24
申请号：US16823233
申请日：2020-03-18
Applicant: QUALCOMM Incorporated
Inventor： Kiran Venugopal , Tianyang Bai , Jung Ho Ryu , Tao Luo , Yan Zhou
Abstract: Methods, systems, and devices for wireless communications are described that provide efficient beam updates in beamformed communications between a transmitting device and receiving device. The transmitting device and the receiving device may establish a connection using one or more beamformed transmission beams. The devices may periodically perform beam refinement procedures or beam training procedures and may update the transmission beams used for communications based on such procedures. Signaling to indicate the updated transmission beams may be transmitted that indicates one or more of a difference or delta from a prior beamforming parameter, a beam that was used at the receiving device for one or more measurements of a reference signal from the transmitting device, or any combinations thereof.
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公开(公告)号：US20200259545A1
公开(公告)日：2020-08-13
申请号：US16747683
申请日：2020-01-21
Applicant: QUALCOMM Incorporated
Inventor： Tianyang Bai , Juergen Cezanne , Jung Ho Ryu , Kiran Venugopal , Hua Wang , Vasanthan Raghavan , Kobi Ravid , Tao Luo , Junyi Li
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station such as a eNodeB (eNB), a next-generation NodeB or giga-NodeB (either of which may be referred to as a gNB)), an indication of a value of a channel quality parameter of a wireless link including a first beam pair between the UE and the base station. The UE may also transmit, to the base station, side information different from and in addition to the indication of the value of the channel quality information, and receive, in response to the transmitted indication of the value and the transmitted side information, an indication of resources for the UE to use to communicate on the wireless link.
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