公开(公告)号：US20210013933A1

公开(公告)日：2021-01-14

申请号：US16942192

申请日：2020-07-29

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/0408 ,  H04B7/06 ,  H04W74/08 ,  H04B17/309 ,  H04L1/16

Abstract: A user equipment (UE) may measure signal characteristics of a beam reference signal and determine, based on the measured signal characteristics, a beam repetition and diversity (R/D) mode to be used in communications between the UE and a base station. In some examples, UE feedback to the base station may include an indication of the determined beam R/D mode, as well as channel quality information associated with one or more beams to which the determined beam R/D mode is to be applied and/or operating parameters (e.g., a mixed beam repetition and diversity pattern) associated with the beam R/D mode.

公开(公告)号：US10834733B2

公开(公告)日：2020-11-10

申请号：US15874575

申请日：2018-01-18

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/00 ,  H04B7/0408 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/08 ,  H04W56/00

Abstract: Aspects of the present disclosure provide a method, a computer-readable medium, and an apparatus for wireless communication, for example for reference signal measurements. An example method, performed by a user equipment, generally includes determining a duration for reference signal measurements of a network entity and beamforming one or more radio frequency chains in one or more directions for the reference signal measurements of the network entity during the duration.

公开(公告)号：US10827474B2

公开(公告)日：2020-11-03

申请号：US15973363

申请日：2018-05-07

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 ,  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：US20200252923A1

公开(公告)日：2020-08-06

申请号：US16746304

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Tao Luo ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Makesh Pravin John Wilson ,  Sungwoo Park ,  Wooseok Nam

IPC: H04W72/04 ,  H04W74/08 ,  H04W48/08 ,  H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying a receive beam for performing a listen before talk (LBT) procedure in an attempt to gain access to a transmission opportunity (TxOP) in a shared radio frequency spectrum. In particular, a wireless device may select a receive beam that corresponds to one or more transmit beams to be used in a TxOP to perform an LBT procedure in an attempt to gain access to the TxOP. In one example, the wireless device may select a receive beam for performing an LBT procedure based on the energy of each of the transmit beams to be used in a TxOP. In another example, the wireless device may select a receive beam for performing an LBT procedure if the receive beam is quasi co-located with each of the transmit beams to be used in a TxOP.

公开(公告)号：US20200252891A1

公开(公告)日：2020-08-06

申请号：US16777326

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W16/28 ,  H04W24/08 ,  H04W72/04 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described that provide staggered synchronization signal blocks (SSBs) in frequency sub-bands for beamformed wireless communications. Transmissions of SSBs and control channel transmissions (e.g., remaining minimum system information (RMSI) physical downlink control channel (PDCCH) transmissions) may use multiple transmission beams in a beam sweeping procedure. The SSB transmissions may be transmitted using transmission beams that span one frequency sub-band of a number of available frequency sub-bands, and the control channel transmissions may use transmission beams that span two or more of the frequency sub-bands. The SSB beam sweeping procedure may be performed separately during staggered, non-overlapping time periods for each frequency sub-band of the number of frequency sub-bands. Each of the of SSBs may indicate a reference timing of the base station used to identify a set of resources (e.g., a control resource set (CORESET)) that carries control channel transmissions.

公开(公告)号：US10736045B2

公开(公告)日：2020-08-04

申请号：US16005954

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/40 ,  H04W72/04 ,  H04W52/42 ,  H04W24/10

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for uplink power control using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communication by a base station includes providing power control parameters, to at least one user equipment (UE), for use in performing uplink transmit power control for one or more uplink transmissions sent using one or more uplink transmit beams, signaling the UE to set or reset one or more of the power control parameters, and transmitting one or more reference signals (RSs) using one or more downlink transmit beams, for the UE to measure for use in the uplink transmit power control.

公开(公告)号：US10736010B2

公开(公告)日：2020-08-04

申请号：US15703555

申请日：2017-09-13

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Sony Akkarakaran ,  Makesh Pravin John Wilson

IPC: H04W36/30 ,  H04W24/10 ,  H04W24/02 ,  H04W72/04 ,  H04W36/00 ,  H04W16/28 ,  H04B17/318 ,  H04L5/00 ,  H04W56/00 ,  H04W88/02 ,  H04W88/08

Abstract: Certain aspects of the present disclosure provide techniques for supporting mobility management in a wireless communication system employing beams. A UE may receive, from a BS serving the UE, information regarding one or more reference beams and one or more event triggers associated with the one or more reference beams. The UE may detect one of the event triggers and may take one or more actions based, at least in part, on the detected event trigger.

公开(公告)号：US10728897B2

公开(公告)日：2020-07-28

申请号：US16221265

申请日：2018-12-14

Applicant: QUALCOMM Incorporated

Inventor： Sumeeth Nagaraja ,  Tao Luo ,  Makesh Pravin John Wilson

IPC: H04W72/04 ,  H04B7/06 ,  H04B17/318 ,  H04W36/00 ,  H04B17/309 ,  H04W72/12 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. Uplink resources may be allocated for transmissions of beam recovery messages. For example, a user equipment (UE) communicating in a system that supports beamformed transmissions may receive a configuration for resources from a base station, where the resources may be used for beam recovery signaling. The UE may identify a beam failure on one or more active beams used to communicate with the base station, and the UE may transmit a beam recovery message to the base station. In such cases, the beam recovery message may be transmitted according to the configuration received from the base station such that the beam recovery message is transmitted using the beam recovery resources. In some cases, the configuration may be received at the UE via radio resource control (RRC) signaling or via a system information broadcast from the base station.

公开(公告)号：US10727995B2

公开(公告)日：2020-07-28

申请号：US15981572

申请日：2018-05-16

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.

公开(公告)号：US20200229228A1

公开(公告)日：2020-07-16

申请号：US16837756

申请日：2020-04-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04L5/00 ,  H04W72/12

Abstract: A method of wireless communication includes receiving, at a user equipment (UE), a grant from a base station on a control channel, the grant including content indicating a mini-slot assigned to the UE. The method may include interpreting the grant based on a current configuration of a data channel to determine the mini-slot. The method may include communicating with the base station during the mini-slot indicated by the grant.