公开(公告)号：US11153052B2

公开(公告)日：2021-10-19

申请号：US16839724

申请日：2020-04-03

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Makesh Pravin John Wilson ,  Tao Luo ,  Jing Sun

IPC: H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04L1/00 ,  H04B7/0413

Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a base station may transmit control information to a user equipment (UE) in a control resource set (coreset) of a transmission time interval (TTI). As described herein, the base station may transmit common control information in a common search space (CSS) of the coreset and a UE-specific control information in a UE-specific search space (USS) of the same coreset. In addition, the base station may transmit reference signals in the coreset to allow the UE to perform channel estimation to correctly decode or demodulate the control information in the CSS and USS of the coreset. In some examples, the reference signals transmitted in the CSS and USS of the coreset may include a common sequence for the coreset.

公开(公告)号：US11140706B2

公开(公告)日：2021-10-05

申请号：US15883848

申请日：2018-01-30

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08 ,  H04W16/28 ,  H04W88/08 ,  H04W88/02

Abstract: A grant may allocate resources for an uplink transmission by a user equipment (UE) in a system using beamforming, where the resources may be used by the UE to transmit data or control information during a time that a base station is listening in a certain receive beam direction. A UE may be in communication with a base station using beamformed transmissions, and the base station may send a resource grant to the UE for uplink transmissions that correspond to a receive beam direction of a beamsweeping operation. The UE may then transmit data and/or uplink control information to the base station according to the resource grant and when the base station is listening in the corresponding direction. In some examples, the UE may send the uplink transmission to the serving base station, and transmit a random access channel to another base station based on the beamsweeping operation.

公开(公告)号：US20210306037A1

公开(公告)日：2021-09-30

申请号：US16488235

申请日：2018-04-04

Applicant: Makesh Pravin JOHN WILSON ,  June NAMGOONG ,  Yu ZHANG ,  Alexandros MANOLAKOS ,  Jing SUN ,  Tao LUO ,  Bilal SADIQ ,  Qualcomm Incorporated

Inventor： Makesh Pravin John Wilson ,  June Namgoong ,  Yu Zhang ,  Alexandros Manolakos ,  Jing Sun ,  Tao Luo ,  Bilal Sadiq

IPC: H04B7/0452 ,  H04W72/04 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communication are described. In multi-user (MU) multiple-input multiple-output (MIMO) wireless communications systems, a base station may perform signaling to indicate information related to ports assigned to one or more UEs. The base station may also signal information regarding ports shared with other UEs, which the UE may use when performing channel estimation. In some examples, the base station may signal a number of ports used per sub-band to the UE or a number of demodulation reference signal (DMRS) ports used by the UE. The base station may signal a sub-set of a total number of ports that are shared by other UEs overlapping with the resource allocation of the UE. The signaling may indicate a number of combs used by the base station in the resource allocation for the UE.

公开(公告)号：US11134474B2

公开(公告)日：2021-09-28

申请号：US15784837

申请日：2017-10-16

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W72/12 ,  H04B7/0452

Abstract: Aspects of the present disclosure provide techniques for transmitting, receiving, and processing multi-user multiple input multiple output (MU-MIMO) signals for heterogeneous numerology systems. An exemplary method performed, for example, by a scheduling entity generally includes signaling an indication of numerology parameters to be used in transmitting first and second multi-user multiple input multiple output (MU-MIMO) signals to first and second user equipments (UEs) using shared resources and transmitting the first and second MU-MIMO signals to the first and second UEs, in accordance with the numerology parameters.

公开(公告)号：US11115110B2

公开(公告)日：2021-09-07

申请号：US16662766

申请日：2019-10-24

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Wooseok Nam ,  Makesh Pravin John Wilson ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun ,  Arumugam Chendamarai Kannan

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

Abstract: In order to overcome problems that a UE may face in determining a default beam for communication with the base station during a COT, a method, apparatus, and computer-readable medium are provided for a base station to indicate to the UE which CORESET(s), QCL assumptions, UL resources, and/or spatial relationships are selected for a COT. A UE receives, from a base station, an indication corresponding to a COT. The indication is for at least one of a set of CORESETs, a set of QCL assumptions, a set of UL resources, or a set of spatial relations for determining a default beam. The UE determines the default beam from the base station for use during the COT based on the indication. The UE transmits or receives a transmission using the default beam.

公开(公告)号：US11096170B2

公开(公告)日：2021-08-17

申请号：US15987630

申请日：2018-05-23

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Heechoon Lee ,  Tao Luo ,  Makesh Pravin John Wilson ,  Yang Yang

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: Systems and methods herein increase the throughput and decreases the collisions of transmitted resource element group (REG) bundles. Prior to transmitting a PDCCH comprising REG bundles, one or more processors perform a multi-component interleaver process that diversifies and randomizes the sequence of the REG bundles while also supporting CORESETs having different symbol lengths. In embodiments, the multi-component interleaver diversifies a virtual sequence of REG bundles using a block interleaver and then uses a randomizer interleaver to randomize the output sequence of the block interleaver. The diversified and randomized output sequence of REG bundles may be the physical channel sequenced of the REG bundles. The physical channel sequence of REG bundles is diversified and randomized such that the physical sequence increases throughput and decreases the collisions of transmitted REG bundles. Other aspects are claimed and described.

公开(公告)号：US11095356B2

公开(公告)日：2021-08-17

申请号：US16660586

申请日：2019-10-22

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04W74/08 ,  H04W88/10 ,  H04W88/06 ,  H04W24/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from a base station, information identifying a secondary cell group including a plurality of secondary cells. The user equipment may perform, after detecting a beam failure with a secondary cell of the secondary cell group, a beam failure recovery action associated with the secondary cell group. Numerous other aspects are provided.

公开(公告)号：US20210194553A1

公开(公告)日：2021-06-24

申请号：US17193926

申请日：2021-03-05

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Makesh Pravin John Wilson ,  Jung Ho Ryu ,  Tao Luo

IPC: H04B7/06 ,  H04L5/00

Abstract: Beam management enhancements for advanced millimeter wave (mmWave) operations are disclosed. As a part of channel state information (CSI) reporting configuration, a user equipment may include an interference plus noise measurement of beams for consideration in beam management. The UE measures a set of signaling resources of each beam for power contribution and interference plus noise. According to the particular configuration, the UE may rank all of the available beams into a subset of the highest ranked beams, ranked either by the interference plus noise measurement, by the power contribution metric, or by a combination of both. The UE reports an identification of the subset to the serving base station which determines the beam to use for subsequent communications with the UE.

公开(公告)号：US11039327B2

公开(公告)日：2021-06-15

申请号：US16250773

申请日：2019-01-17

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Heechoon Lee ,  Hung Dinh Ly

IPC: H04W24/08 ,  H04W48/12 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a remaining minimum system information control resource set (RMSI CORESET) monitoring configuration based at least in part on information received by the UE in a first frame; and monitor, during a second frame and based at least in part on the RMSI CORESET monitoring configuration, for an RMSI CORESET based at least in part on a synchronization signal block (SSB), associated with the RMSI CORESET, that is received in the first frame.

公开(公告)号：US11026253B2

公开(公告)日：2021-06-01

申请号：US16395111

申请日：2019-04-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H03M13/13

Abstract: Aspects of the disclosure relate to mechanisms for mapping a physical downlink control channel (PDCCH) across multiple transmission configuration indication (TCI) states. In some examples, the PDCCH may then be encoded using a common mother polar code for each of a first set of control channel elements (CCEs) mapped to a first TCI state and a remaining set of CCEs mapped to a second TCI state. First and second portions of the encoded PDCCH may then be transmitted, such that the first portion includes the first set of CCEs, and the second portion includes the remaining set of CCEs.