公开(公告)号：US11695528B2

公开(公告)日：2023-07-04

申请号：US16460831

申请日：2019-07-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tao Luo ,  Makesh Pravin John Wilson ,  Kiran Venugopal

IPC: H04L5/00 ,  H04W76/28 ,  H04L25/02 ,  H04W80/02 ,  H04W24/10

CPC classification number: H04L5/005 ,  H04L25/0226 ,  H04W24/10 ,  H04W76/28 ,  H04W80/02

Abstract: Certain aspects of the present disclosure provide techniques for sounding reference signal (SRS) resource configuration enhancements. A method generally receiving pre-configuration information for one or more reference signal transmissions, performing, at a first time during an ON duration of a discontinuous reception (DRX) cycle, measurements on one or more reference signals based, at least in part, on the pre-configuration information, determining if, at a second time during the ON duration after the first time, a trigger frame associated with the one or more reference signal transmissions has been received, and transmitting a measurement report corresponding to the measurements if a trigger frame has been received.

公开(公告)号：US20230155717A1

公开(公告)日：2023-05-18

申请号：US18156567

申请日：2023-01-19

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson

IPC: H04L1/00 ,  H04L1/18 ,  H04W72/044 ,  H04B7/08 ,  H04B7/06 ,  H04W72/542

CPC classification number: H04L1/0003 ,  H04L1/18 ,  H04W72/046 ,  H04B7/0814 ,  H04B7/0686 ,  H04W72/542

Abstract: Methods, systems, and devices for wireless communications are described. Communications by wireless devices may be modified when beam pair links (BPLs) experience decreased link quality. For example, a controlling wireless device may communicate with a secondary wireless device using a set of BPLs. The controlling and secondary wireless device may each cycle through the set of BPLs at respective times of a communication time period. Upon detecting one or more BPLs having a decreased link quality during a portion of the communication time period, the controlling wireless device may transmit a configuration modifying the communications. For instance, the modified communications may include replacing the one or more BPLs with different BPLs having a relatively higher link quality. In other cases, the modified communications may include using repeated transmissions during the portion of the communication time period or excluding the BPLs experiencing decreased link quality from the communication time period.

公开(公告)号：US11638289B2

公开(公告)日：2023-04-25

申请号：US16949328

申请日：2020-10-26

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04W72/23 ,  H04W24/10 ,  H04L1/00 ,  H04L5/00 ,  H04W16/14 ,  H04W84/04

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may measure a first reference signal, associated with a frequency band of a long term evolution (LTE) system, and a second reference signal associated with a frequency band of a new radio (NR) system. The frequency band of the NR system may overlap the frequency band of the LTE system. The UE may determine first channel state feedback, associated with the frequency band of the LTE system, and second channel state feedback, associated with the frequency band of the NR system, based at least in part on the first reference signal and the second reference signal, respectively. The UE may report the first channel state feedback or the second channel state feedback in uplink control information (UCI). Other aspects are provided.

公开(公告)号：US11558896B2

公开(公告)日：2023-01-17

申请号：US16566508

申请日：2019-09-10

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Yan Zhou ,  Makesh Pravin John Wilson ,  Linhai He

IPC: H04W74/00 ,  H04W74/08

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving a PDCCH order for a MSG 1 transmission having a first DMRS that is quasi co-located with a first reference signal, and receiving a corresponding RACH message having a second DMRS that is quasi co-located with a second reference signal, wherein the first reference signal and second reference signal are different.

公开(公告)号：US11546025B2

公开(公告)日：2023-01-03

申请号：US16736091

申请日：2020-01-07

Applicant: QUALCOMM Incorporated

Inventor： Jung Ho Ryu ,  Kiran Venugopal ,  Makesh Pravin John Wilson ,  Tianyang Bai ,  Tao Luo

IPC: H04B7/0404 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for precoding for multi-panel uplink transmission. For codebook-based uplink transmission, a user equipment (UE) can determine one or more preferred or selected precoders for uplink transmission. The precoders can be from an expanded UE codebook that maps a first number of transmit layers at the UE to a second number of antenna ports at the UE, the layers and/or antenna ports associated with multiple uplink transmit panels at the UE. The UE sends an indication to a base station (BS) of the determined precoders and/or sends an uplink transmission using the determined precoders. For non-codebook based uplink transmission the UE receives first and second reference signals (RSs), from first and second ports of a BS, with first and second UE antenna panels. The UE computes precoders to use for uplink transmission based on the RSs.

公开(公告)号：US11464008B2

公开(公告)日：2022-10-04

申请号：US16427058

申请日：2019-05-30

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson ,  Muhammad Nazmul Islam ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/14

Abstract: Repetitive PDCCH may be utilized to extend control channel coverage. The PDCCH may be configured to repeat in adjacent or non-adjacent slots per monitoring occasion of corresponding search space. The PDCCH may carry control information such as a grant that schedules a channel for a wireless device, such that the wireless device receives instructions for scheduling a channel at a scheduled slot. The apparatus may receive control information in a repetitive PDCCH within a set of slots. The repetitive PDCCH schedules a channel for reception or transmission by the UE. The apparatus may determine a scheduled slot index for the channel scheduled by the repetitive PDCCH. The apparatus may communicate the channel at the determined scheduled slot index and based on the received control information in the repetitive PDCCH. The channel may be a PDSCH, a PUSCH, or may carry A-CSI-RS.

公开(公告)号：US11452101B2

公开(公告)日：2022-09-20

申请号：US16275065

申请日：2019-02-13

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Bilal Sadiq ,  Makesh Pravin John Wilson ,  Wooseok Nam ,  Yan Zhou

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

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide a mechanism for a user equipment (UE) to identify an uplink transmit beam to be used for communicating with a base station. In some cases, the uplink transmit beam may be based on a recent uplink (or downlink) transmission or set of allocated resources. A base station may allocate communication resources for a UE. The UE may determine, based on the allocated communication resources, a default transmit beam for communicating with the base station. The UE and base station may (e.g., independently) identify a triggering condition for using the default transmit beam. The UE may transmit an uplink communication to the base station using the default transmit beam based on the triggering condition.

公开(公告)号：US11412464B2

公开(公告)日：2022-08-09

申请号：US16720276

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Mostafa Khoshnevisan ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Vinay Chande

IPC: H04W52/40 ,  H04L5/00 ,  H04W52/28

Abstract: Methods, systems, and devices for wireless communications are described for adjusting transmit powers for concurrent uplink transmissions from a user equipment (UE) to multiple transmission reception points (TRPs), or dropping one or more uplink transmissions to one or more TRPs, based on one or more parameters. A UE may identify that a combined transmission power for concurrent uplink transmissions exceeds a power threshold of the UE, and may adjust a power for one or more of the concurrent uplink transmissions, or drop one or more of the uplink transmissions based on such an identification. If a difference in transmit powers of the concurrent uplink transmissions exceeds a power difference threshold, the UE may drop one or more lower priority transmissions. The UE may multiplex at least a portion of a dropped transmission with another uplink transmission that will be transmitted, such as by rate-matching or puncturing.

公开(公告)号：US11362704B2

公开(公告)日：2022-06-14

申请号：US17199088

申请日：2021-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Kaushik Chakraborty

IPC: H04W56/00 ,  H04B7/0408 ,  H04B7/0413 ,  H04W72/04 ,  H04B7/08 ,  H04B7/06 ,  H04L5/00 ,  H04J11/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.

公开(公告)号：US11349619B2

公开(公告)日：2022-05-31

申请号：US16940086

申请日：2020-07-27

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Tao Luo ,  Makesh Pravin John Wilson ,  Sony Akkarakaran ,  Kaushik Chakraborty ,  Shengbo Chen

IPC: H04L5/00 ,  H04L5/14 ,  H04W72/04 ,  H04W72/08 ,  H04W24/10

Abstract: Aspects herein describe transmitting reference signals in wireless communications. An indication of resources over which to transmit an uplink reference signal can be received from an access point, where the resources are at least partially used by another device to transmit a downlink reference signal or a second uplink reference signal. The uplink reference signal can be transmitted over the resources.