公开(公告)号：US11678202B2

公开(公告)日：2023-06-13

申请号：US16009034

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04B7/06 ,  H04B7/08 ,  H04B17/309

CPC classification number: H04W16/28 ,  H04B7/063 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/309

Abstract: A UE my receiving an indication of a beam pair link (BPL), wherein the BPL comprises a base station (BS) transmit beam and a corresponding UE receive beam. The UE may tag the BPL based on the UE receive beam. The UE may take one or more actions associated with the tagged BPL.

公开(公告)号：US11582728B2

公开(公告)日：2023-02-14

申请号：US17069630

申请日：2020-10-13

Applicant: QUALCOMM Incorporated

Inventor： Omar El Ayach ,  Sundar Subramanian ,  John Edward Smee ,  Ashwin Sampath ,  Junyi Li

IPC: H04W72/04 ,  H04W48/12 ,  H04W16/28 ,  H04W72/0446

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a discovery signal transmitted from a connection point (CP) via a directional beam. The discovery signal may include first information (including beam sweep configuration information) related to the CP. The apparatus then transmits an association signal to the CP based on the beam sweep configuration information and monitors for a resource grant from the CP based on the transmitted association signal. Alternatively, the apparatus transmits a discovery signal via a directional beam to a user equipment (UE). The discovery signal may include first information (including beam sweep configuration information) related to the apparatus. The apparatus then receives an association signal from the UE based on the beam sweep configuration information and determines a resource grant for communicating with the UE based on the received association signal.

公开(公告)号：US11522656B2

公开(公告)日：2022-12-06

申请号：US17089627

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Tianyang Bai ,  Juergen Cezanne ,  Sundar Subramanian ,  Junyi Li

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: An apparatus for wireless communication selects a recommendation for the need. The apparatus selects the resource to transmit a phase tracking reference signal based on a condition of a communication system. The apparatus performs at least one of transmitting an indication of the selected recommendation for the resource to a second wireless communication device or transmitting at least one of information or a reference signal to the second device to assist the second device in determining the resource. In an aspect, the selection may be made based on receiving a request for a recommendation from the second wireless communication device or the transmitting the at least one of the information or the reference signal are based on a request received.

公开(公告)号：US11470604B2

公开(公告)日：2022-10-11

申请号：US16548462

申请日：2019-08-22

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Navid Abedini ,  Sundar Subramanian ,  Junyi Li ,  Karl Georg Hampel ,  Jianghong Luo

IPC: H04W72/04 ,  H04W72/08 ,  H04W72/12 ,  H04L5/00

Abstract: Wireless communications systems and methods related to communicating in an integrated access backhaul (IAB) network are provided. A first wireless communication device transmits to a second wireless device during a first one of a plurality of slots; and receives a second transmission from the second wireless device during a second one of the plurality of slots. The second transmission includes link quality information about the first transmission and scheduling information for a third transmission between the first and second wireless devices.

公开(公告)号：US11425720B2

公开(公告)日：2022-08-23

申请号：US17004920

申请日：2020-08-27

Applicant: QUALCOMM incorporated

Inventor： Muhammad Nazmul Islam ,  Sundar Subramanian ,  Juergen Cezanne ,  Junyi Li

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L5/14 ,  H04B7/06 ,  H04W16/28 ,  H04W74/08 ,  H04W74/00

Abstract: A user equipment (UE) can transmit a beam failure recovery request using contention-based physical random access channel (PRACH) resources to supplement and/or replace non-contention-based resources for transmitting the beam failure recovery request. The UE can reduce beam recovery latency by informing its intention for beam failure recovery by transmitting a beam failure recovery request during the random access channel (RACH) procedure. The base station may dedicate a set of RACH resources that can be used for both transmitting regular contention-based RACH messages and beam failure recovery request.

公开(公告)号：US20220231742A1

公开(公告)日：2022-07-21

申请号：US17646090

申请日：2021-12-27

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Xiao Feng Wang ,  Junyi Li ,  Juergen Cezanne ,  Ashwin Sampath

IPC: H04B7/06 ,  H04W56/00 ,  H04W24/10 ,  H04L5/00 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In aspects of the present disclosure, a user equipment (UE) may report metrics (e.g., received signal power, beam identifier) about synchronization signal (SS) beams using the same (e.g., or a similar) framework that is used for channel state information reference signal (CSI-RS) reporting. Because SSs are intended to be broadcast across a wide coverage area in a beamformed manner, the SSs represent a promising complement to existing beam management techniques. Accordingly, beam management may be achieved at least in part based on reporting one or more metrics of beamformed SSs through a channel feedback framework.

公开(公告)号：US20220217703A1

公开(公告)日：2022-07-07

申请号：US17705104

申请日：2022-03-25

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Karl Georg Hampel ,  Junyi Li ,  Sundar Subramanian ,  Muhammad Nazmul Islam ,  Juergen Cezanne

IPC: H04W72/04 ,  H04W16/28 ,  H04W76/10

Abstract: Backhaul resources may be allocated to different wireless communication links between different base stations, and local redistribution of resources among base stations may be utilized to account for variations in signal quality and/or variations in traffic experienced by different nodes of the backhaul network. A first access node function (ANF) may determine a need for additional backhaul resources, and may transmit a request message to one or more user equipment functions (UEFs) for additional backhaul resources. A UEF that receives the request message may forward the request to an associated second ANF. The second ANF, if it has backhaul resources available that the first ANF can use, may send a response to the first ANF, via the associated UEF, and the first ANF may use the additional resources that were originally allocated to the second ANF.

公开(公告)号：US11381296B2

公开(公告)日：2022-07-05

申请号：US15930901

申请日：2020-05-13

Applicant: QUALCOMM Incorporated

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

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

Abstract: A user equipment (UE) may communicate with a base station through a first active beam, the first active beam comprising a serving beam. The UE may receive a first reference signal and a second reference signal associated with beam tracking from the base station, where the first reference signal is received through a first beam of a first plurality of beams and the second reference signal is subsequently received through a second beam of a second plurality of beams, and where the beam tracking includes identifying a new beam for communication between the UE and the base station. The UE may communicate with the base station through a second active beam based on at least one of the first reference signal or the second reference signal associated with the beam tracking, the second active beam comprising the new beam.

公开(公告)号：US11277869B2

公开(公告)日：2022-03-15

申请号：US16631402

申请日：2018-07-25

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Muhammad Nazmul Islam ,  Sundar Subramanian ,  Tao Luo ,  Peng Cheng

IPC: H04W74/08 ,  H04W76/19 ,  H04B7/06 ,  H04W16/28 ,  H04W36/08 ,  H04W74/02

Abstract: A user equipment (UE) may initiate a random access (RACH) procedure using an uplink resource selected based on a corresponding received synchronization signal block. The UE may detect a random access procedure trigger. The UE may configure a selection threshold time. The selection threshold time may be based at least in part on a latency requirement of the UE. The UE may select a synchronization signal block having a corresponding uplink resource within the selection threshold time. The synchronization signal block and corresponding uplink resource satisfy one or more parameters or conditions. The UE may transmit a random access preamble on the corresponding uplink resource.

公开(公告)号：US11191061B2

公开(公告)日：2021-11-30

申请号：US15468594

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/0408 ,  H04L5/00 ,  H04L25/02 ,  H04W72/02 ,  H04B17/336 ,  H04W16/28 ,  H04W74/08 ,  H04B7/0417

Abstract: When beamforming (e.g., via a millimeter wave system (mmW)) is used for wireless communication, a base station may transmit beams that are directed to certain directions. Due to the directional nature of the beams in the mmW system, an approach to determine a beam that provides a desirable gain is studied. The apparatus may be a user equipment (UE). The apparatus receives, from a base station, a plurality of signals through a plurality of beams of the base station, each of the plurality of beams corresponding to a respective antenna port of a plurality of antenna ports of the base station, where the plurality of signals include a plurality of beam reference signals, a plurality of beam refinement reference signals, a plurality of channel state information reference signals (CSI-RSs), or a combination thereof. The apparatus performs channel estimation for each beam of the plurality of beams from the plurality of antenna ports based on the plurality of signals.