公开(公告)号：US11330571B2

公开(公告)日：2022-05-10

申请号：US16544114

申请日：2019-08-19

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Muhammad Nazmul Islam ,  Hung Dinh Ly ,  Heechoon Lee ,  Peter Pui Lok Ang

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

Abstract: Methods, systems, and devices for wireless communications are described that provide for selection of different sets of transmission beams by a user equipment (UE) for establishing beamformed communications with a base station. Each transmission beam of a first set of transmission beams may have corresponding uplink random access channel (RACH) resources. A UE may monitor for transmission beams from a base station and select a first transmission beam of the first set for communications with the base station. As part of a connection establishment, the base station may provide configuration information that indicates a second set of transmission beams that includes each transmission beam of the first set of transmission beams and at least an additional transmission beam. In some cases, the additional transmission beam may be mapped to a first RACH resource that also corresponds to a first transmission beam of the first set of transmission beams.

公开(公告)号：US11316577B2

公开(公告)日：2022-04-26

申请号：US16406562

申请日：2019-05-08

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B17/309 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08

Abstract: Methods are provided for configuring an initial CORESET and associated search space during beam management. A base station (BS) receives measurements of at least one downlink reference signal (RS) from a User Equipment (UE), wherein each of the at least one downlink RS is associated with a transmit beam. The BS selects, based on the received measurements, a transmit beam for transmitting on resources of an initial time and frequency control resource set (CORESET), wherein the initial CORESET schedules unicast Physical Downlink Data Channel (PDSCH) for the UE, wherein the initial CORESET is identified during initial access of the UE to the BS. The BS transmits information relating to the initial CORESET on the selected beam in a Medium Access Control (MAC) Control Element (MAC-CE), wherein the information is transmitted using a combination of bits in the MAC-CE, the bits configured for indicating CORESETs.

公开(公告)号：US11259237B2

公开(公告)日：2022-02-22

申请号：US16244743

申请日：2019-01-10

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W48/12 ,  H04L5/00 ,  H04W48/10 ,  H04W76/11 ,  H04L27/26 ,  H04W74/00 ,  H04J11/00

Abstract: An apparatus may receive a master information block and a synchronization signal (SS) block on a PBCH. The MIB may indicate an allocation associated with a CORESET. The apparatus may receive remaining minimum system information (RMSI) configuration information carried in the CORESET based on the allocation associated with the CORESET. The apparatus may determine a position associated with a downlink data channel based on a first value indicated by one of the MIB or the SS block in the PBCH and based on a second value indicated by the RMSI configuration information. The apparatus may receive data carried on the downlink data channel based on the position associated with the downlink data channel.

公开(公告)号：US11219070B2

公开(公告)日：2022-01-04

申请号：US16795281

申请日：2020-02-19

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W56/00 ,  H04W76/27 ,  H04W72/04 ,  H04L1/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select a random access channel (RACH) signature from among one or more RACH signatures associated with a synchronization signal block (SSB). The UE may transmit, to a base station (BS), a RACH communication using the selected RACH signature. Numerous other aspects are provided.

公开(公告)号：US11201661B2

公开(公告)日：2021-12-14

申请号：US16660328

申请日：2019-10-22

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/08 ,  H04W76/11 ,  H04W74/08 ,  H04W72/04

Abstract: Disclosed are techniques for beam failure recovery in a wireless communications system. In an aspect, a user equipment (UE) detects a beam failure of a first downlink beam received at the UE from a base station, wherein the first downlink beam is a primary downlink beam for a first cell supported by the base station, sends, to the base station, on a supplementary uplink (SUL) beam, a message including an indication of the beam failure and an identification of a second downlink beam to replace the first downlink beam as the primary downlink beam for the first cell, and, based on the base station configuring the second downlink beam as the primary downlink beam for the first cell, establishes an uplink beam for the first cell based on properties of the second downlink beam.

公开(公告)号：US11184126B2

公开(公告)日：2021-11-23

申请号：US16376989

申请日：2019-04-05

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: Aspects described herein relate to configuring a media access control (MAC)-control element (CE) to update a sounding reference signal (SRS) beam within a wireless communication system. Other aspects described herein relate to configuring default beam information for determining a beam for data channel communications within the wireless communication system. A user equipment (UE) or other device can determine to use the default beam information for configuring the beam for a data channel communication and for performing power control using, e.g., physical uplink shared channel (PUSCH) parameters. In addition, in some examples, the device can transmit the data channel communication using a beam configured based on the default beam information.

公开(公告)号：US11172457B2

公开(公告)日：2021-11-09

申请号：US16683179

申请日：2019-11-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficient identification of spatial parameters for receiving control information in an initial coreset. In one example, a user equipment (UE) may receive a transmission configuration indication (TCI) state indicating reference signals quasi co-located with a control information transmission in a coreset. The TCI state may be identified from a set of TCI states, where the set of TCI states includes at least one TCI state corresponding to each synchronization signal block (SSB) (e.g., each quasi co-location (QCL) source) associated with the initial coreset. The UE may identify spatial parameters for monitoring the coreset for the control information transmission in accordance with the TCI state.

公开(公告)号：US11166172B2

公开(公告)日：2021-11-02

申请号：US16456949

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Kiran Venugopal ,  Makesh Pravin John Wilson ,  Junyi Li ,  Tianyang Bai ,  Yan Zhou ,  Tao Luo

IPC: H04W16/28 ,  H04W88/06 ,  H04W24/10 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques to improve reliability and robustness for millimeter wave (mmW) systems in fifth generation (5G) wireless communications technology (also referred to as new radio (NR)). Specifically, the present disclosure provides techniques to allow the base station to group a plurality of mmW beams for communication with the user equipment (UE) such that the selected beam(s) for communication are independent and uncorrelated. The selection of beams ensure macro-diversity in that the joint blocking probability of the selected beam(s) may be minimized and the susceptibility to blockage is reduced in comparison to the current systems.

公开(公告)号：US11152992B2

公开(公告)日：2021-10-19

申请号：US16721499

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Makesh Pravin John Wilson ,  Xiao Feng Wang

IPC: H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described in which measurements of a number of beams that are transmitted from a first device, measured at a second device are provided in a beam switch metric report from the second device. The beam switch metric report may provide the first device with information that is otherwise unavailable to the first device and that may be used for setting beam management parameters.

公开(公告)号：US11076421B2

公开(公告)日：2021-07-27

申请号：US16722485

申请日：2019-12-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/00 ,  H04W72/04 ,  H04W74/08 ,  H04W72/02 ,  H04W72/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a first message of a random access channel (RACH) procedure and based at least in part on whether the UE has beam correspondence, at least one of: a set of time-frequency resources for the first message of the RACH procedure, or a preamble for the first message of the RACH procedure. In some aspects, the UE may transmit, to a base station and based at least in part on selecting the at least one of the set of time-frequency resources or the preamble, the first message of the RACH procedure. Numerous other aspects are provided.