公开(公告)号：US11115096B2

公开(公告)日：2021-09-07

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W72/04 ,  H04B7/0456 ,  H04W16/28 ,  H04W88/02

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.

公开(公告)号：US20210112479A1

公开(公告)日：2021-04-15

申请号：US17003393

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Junyi Li ,  Ashwin Sampath

IPC: H04W40/12 ,  H04B7/155

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a base station may identify one or more communication paths to a user equipment (UE), and may determine an end-to-end signal quality for each communication path (e.g., a signal-to-noise ratio (SNR)), one or more hop SNR values for each hop of each communication path, a ratio of the hop SNR values and the end-to-end SNR of each communication path, or a combination thereof. Based on the determined SNR values, ratios, or both, the base station may select a first communication path for a first type of communications (e.g., uplink, downlink, signal type, or the like) and a second communication path for a second type of communications (e.g., uplink, downlink, signal type, or the like), and may communicate with the UE using the selected communication paths.

公开(公告)号：US10938545B2

公开(公告)日：2021-03-02

申请号：US15713225

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Juergen Cezanne ,  Sundar Subramanian ,  Bilal Sadiq ,  Ashwin Sampath ,  Junyi Li

IPC: H04L12/00 ,  H04L7/04 ,  H04L5/00 ,  H04L27/26 ,  H04J1/02 ,  H04W52/36 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described. Synchronization signals may be transmitted using a set of phase offsets over different component carriers or using a single component carrier for each antenna port. For example, a base station may identify a set of synchronization signals (e.g., a set of primary synchronization signals (PSSs)) to be transmitted over one or multiple component carriers. In some cases, each PSS may be associated with a different component carrier, and the base station may apply a different phase offset to each PSS when transmitting the set of PSSs on the component carriers. In some examples, the base station may transmit the PSSs on the component carriers using a different antenna port for each component carrier.

公开(公告)号：US20200259543A1

公开(公告)日：2020-08-13

申请号：US16741175

申请日：2020-01-13

Applicant: Qualcomm Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Ashwin Sampath ,  Joseph Patrick Burke ,  Dai Lu ,  Junyi Li

IPC: H04B7/06 ,  H04L1/00 ,  H03M1/14

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a base station and/or a user equipment (UE), may select a first resolution for a first analog-to-digital or digital-to-analog conversion process associated with a first wireless communication. The wireless device may determine that the first wireless communication is performed according to the first resolution. The wireless device may select, based at least in part on the determining, a second resolution for a second analog-to-digital or digital-to-analog conversion process associated with a second wireless communication, the first resolution being a lower resolution than the second resolution.

公开(公告)号：US10715241B2

公开(公告)日：2020-07-14

申请号：US16038081

申请日：2018-07-17

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Sundar Subramanian ,  Ashwin Sampath ,  Bilal Sadiq ,  Junyi Li

IPC: H04B7/06 ,  H04B7/0417 ,  H04B7/08 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/08

Abstract: A first apparatus may communicate with a user equipment through a first active beam. The first apparatus may determine that beam tracking is to be performed with the UE, including identifying a new beam for communication between the UE and the apparatus. The first apparatus may perform beam tracking with the UE based on the determination that beam tracking is to be performed. The first apparatus may communicate with the UE through a second active beam based on the beam tracking.

公开(公告)号：US10708919B2

公开(公告)日：2020-07-07

申请号：US16153509

申请日：2018-10-05

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Muhammad Nazmul Islam ,  Jianghong Luo ,  Ashwin Sampath ,  Junyi Li ,  Juergen Cezanne ,  Bilal Sadiq ,  Navid Abedini

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04B7/08

Abstract: When a first node is subject to a maximum permissible exposure (MPE) condition, it may be beneficial for the first node to signal, to a second node, an uplink beam to be used for communications and/or one or more properties of the uplink beam. For example, the first node may signal a downlink beam, from a first reciprocal beam pair, and an uplink beam, from a second reciprocal beam pair, to be used for communications, and/or may signal one or more properties of the uplink beam and/or the downlink beam. Additionally, or alternatively, the second node may transmit, to the first node, a signaling state (e.g., a transmission configuration indication (TCI) state) that indicates properties to be used to configure an uplink beam and/or a downlink beam. In this way, the first node and the second node may configure beams in a manner that accounts for MPE limitations.

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

IPC: H04B7/06 ,  H04W24/08 ,  H04W72/04 ,  H04W8/00 ,  H04W16/28 ,  H04B7/08 ,  H04W48/12

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.

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

IPC: H04W72/08 ,  H04B7/06 ,  H04L5/00 ,  H04W16/28 ,  H04W72/04 ,  H04W74/08

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.

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.

公开(公告)号：US10425144B2

公开(公告)日：2019-09-24

申请号：US15711777

申请日：2017-09-21

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Sundar Subramanian ,  Juergen Cezanne ,  Ashwin Sampath ,  Junyi Li

IPC: H04L1/00 ,  H04B7/08 ,  H04B7/06 ,  H04W24/10 ,  H04B7/0408 ,  H04W72/04 ,  H04W72/08

Abstract: Certain aspects of the present disclosure provide various appropriate frame structures, sweep sequences, and procedures that may assist in beam sweeping, tracking and recovery.