公开(公告)号：US11146328B2

公开(公告)日：2021-10-12

申请号：US14865390

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： James Determan ,  Dan Vassilovski ,  Peyman Razaghi ,  Allen Minh-Triet Tran ,  Mehmet Izzet Gurelli ,  Sumeeth Nagaraja ,  Peter John Black ,  Qiang Wu ,  Gene Wesley Marsh

IPC: H04B7/185 ,  H01Q3/28 ,  H04B7/204 ,  H01Q3/34 ,  H01Q1/28 ,  H01Q1/36

Abstract: A non-geosynchronous satellite system, where each satellite has an antenna (perhaps a multi-element antenna) to form a beam pattern comprising a set of beams in the footprint of the satellite, where in one implementation each beam is substantially elliptical in shape having a minor axis and a major axis, where the minor axes are substantially collinear and the major axes are substantially oriented east to west. For a satellite, power is reduced or turned off for a subset of the set of beams, wherein each beam in the subset is reduced at or below a corresponding power level such that when a beam is powered above its corresponding power level an equivalent power flux-density (EPFD) exceeds a limit at some point on the Earth's surface.

公开(公告)号：US11039499B2

公开(公告)日：2021-06-15

申请号：US16033013

申请日：2018-07-11

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Ashwin Sampath ,  Sundar Subramanian ,  Juergen Cezanne ,  Sumeeth Nagaraja ,  Jianghong Luo

IPC: H04W56/00 ,  H04W76/28 ,  H04L5/00 ,  H04W52/02 ,  H04B7/06 ,  H04B7/08 ,  H04W72/04 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described for discontinuous reception (DRX) wake up procedures over millimeter wave (mmW) frequency resources. A base station may use multiple antenna ports to transmit one or more beamformed downlink transmissions to a user equipment (UE). The downlink transmissions may include beam-swept reference signals, and the UE may initiate a wake up procedure prior to a configured DRX-On cycle to receive the reference signals. Based on the reception of the reference signals, the UE may train a set of receive beams and determine a preferred downlink transmit beam. The base station may subsequently transmit at least a portion of a cell radio network temporary identifier (C-RNTI) in a beam-swept manner, and the UE may evaluate the C-RNTI transmission on the preferred transmit beam. The UE may also transmit an uplink response indicating the preferred transmit beam to receive downlink data.

公开(公告)号：US11038577B2

公开(公告)日：2021-06-15

申请号：US16281994

申请日：2019-02-21

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Muhammad Nazmul Islam ,  Makesh Pravin John Wilson ,  Xiao Feng Wang ,  Sumeeth Nagaraja ,  Bilal Sadiq

IPC: H04B7/06 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide techniques for transmitting a random access channel (RACH) preamble. For example, certain aspects provide a method for wireless communication by a user-equipment (UE). The method generally includes generating a message comprising a random access channel (RACH) preamble, determining an order of a plurality of beams for transmitting the message based on an indication of the order, and transmitting the message, to a network node, via the plurality of beams in accordance with the determined order of the beams.

公开(公告)号：US10993183B2

公开(公告)日：2021-04-27

申请号：US16042780

申请日：2018-07-23

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Jianghong Luo ,  Sumeeth Nagaraja ,  Ashwin Sampath ,  Sundar Subramanian

IPC: H04W52/02 ,  H04W16/14 ,  H04W72/04 ,  H04W76/28 ,  H04W16/28 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception mode. The base station may transmit, based at least in part on identifying that the data is available to be transmitted to the UE, a wakeup message to the UE using a first transmit beam. The base station may initiate a beam management procedure based at least in part on identifying that the data is available to be transmitted to the UE, to identify a second transmit beam for the base station to use to transmit the available data to the UE, wherein the second transmit beam comprises a narrower beam width than the first transmit beam.

公开(公告)号：US10972987B2

公开(公告)日：2021-04-06

申请号：US16139990

申请日：2018-09-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Xiao Feng Wang ,  Shengbo Chen ,  Sumeeth Nagaraja ,  Makesh Pravin John Wilson

IPC: H04W52/36 ,  H04W24/10 ,  H04L5/00 ,  H04W52/24 ,  H04W52/42 ,  H04B7/0426 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0404 ,  H04W72/04 ,  H04W72/02

Abstract: A user equipment (UE) may transmit a power headroom report in response to changing beamforming parameters. The UE may autonomously change beamforming parameters from a preconfigured set of beams or receive a command to change beamforming parameters for transmissions on a new beam. The UE may determine a power headroom applicable to a transmission from the UE on the new beam. The UE may transmit, in response to the command, a power headroom report based on the power headroom using resources configured for the power headroom report. For example, the power headroom report may be multiplexed with an uplink transmission from the UE using the new beam. In an aspect, the UE may select a scheduled transmission during a time period after the command is implemented as the uplink transmission. For example, the power headroom report may be transmitted as a physical layer transmission or as a MAC-CE transmission.

公开(公告)号：US10951376B2

公开(公告)日：2021-03-16

申请号：US16550590

申请日：2019-08-26

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Ashwin Sampath ,  Sumeeth Nagaraja ,  Sundar Subramanian ,  Juergen Cezanne ,  Sony Akkarakaran

IPC: H04L5/00 ,  H04B7/0408 ,  H04B7/06 ,  H04L1/00 ,  H04W16/28 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for signaling information regarding beams used for data and control transmissions to a receiving entity.

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

IPC: H04W76/28 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04L29/08 ,  H04W72/04 ,  H04W72/08

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.

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

IPC: H04W72/04 ,  H04W76/10 ,  H04B7/06 ,  H04B7/08 ,  H04W16/28

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.

公开(公告)号：US10798704B2

公开(公告)日：2020-10-06

申请号：US15964010

申请日：2018-04-26

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen

IPC: H04W52/24 ,  H04W72/04 ,  H04W4/00 ,  H04L5/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques provide for configuration and transmission of reference signals over aggregated mini-slots by modifying (e.g., extending) transmission time intervals (TTIs) or sharing reference signals across multiple mini-slots. The reference signals may be shared between multiple aggregated mini-slots and a reference signal pattern may be determined based on data payload allocation, modulation coding scheme (MCS), rank, or other factors of the aggregated mini-slots. Data payloads may be scheduled jointly or separately for each mini-slot and may be allocated across a set of aggregated mini-slots.

公开(公告)号：US10764775B2

公开(公告)日：2020-09-01

申请号：US15923669

申请日：2018-03-16

Applicant: QUALCOMM Incorporated

Inventor： Linhai He ,  Aleksandar Damnjanovic ,  Gavin Bernard Horn ,  Aziz Gholmieh ,  Yue Yang ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04W24/10 ,  H04W72/12 ,  H04W84/04

Abstract: Various techniques are proposed to enhance or expand the capabilities or usage of buffer status request (BSR) and scheduling request (SR) in new radio (NR) applications. In an implementation, techniques are proposed to extend the SR in long term evolution (LTE) baseline with additional information to help a base station (e.g., gNB) schedule faster and more efficiently. Moreover, a new BSR triggering condition is proposed to report new data based on particular events instead of being time-based. Modifications being proposed to both BSR and SR can be customized for different numerologies/transmission time intervals (TTIs). Modifications being proposed to SR can also be used to indicate a user equipment (UE) new beam selection after recovering from a beam failure.