公开(公告)号：US11039399B2

公开(公告)日：2021-06-15

申请号：US16735318

申请日：2020-01-06

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Jay Kumar Sundararajan ,  Linhai He ,  Seyong Park ,  Yi Huang ,  Hung Dinh Ly ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Naga Bhushan

IPC: H04W52/14 ,  H04W74/08 ,  H04W52/24 ,  H04L5/00 ,  H04W52/10 ,  H04W72/04 ,  H04W76/27 ,  H04W52/36 ,  H04W24/08 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive system information from a base station indicating at least one configuration rule for power control parameter setting for random access. The UE may measure one or more reference signals and may estimate a path loss of wireless communications between the base station and the UE based on the measured reference signals. The UE may select one or more parameters from one or more sets of parameters indicated in the configuration rule. The UE may select a first transmit power for a preamble of a random access message and a second transmit power for a payload of the random access message, based on the estimated path loss and the configuration rule for power control parameters and power ramping procedures. The UE may transmit the random access message according to the selected first and second transmit powers.

公开(公告)号：US10985964B2

公开(公告)日：2021-04-20

申请号：US16126832

申请日：2018-09-10

Applicant: QUALCOMM Incorporated

Inventor： Chinmay Shankar Vaze ,  Hung Dinh Ly ,  Alexei Yurievitch Gorokhov ,  Nathan Yee ,  Hari Sankar ,  Raghu Narayan Challa

IPC: H04L27/26 ,  H04L5/00 ,  H04J11/00 ,  H04W72/04

Abstract: Techniques are described herein that allow a user equipment (UE) to configure a subcarrier spacing value while monitoring synchronization signals of neighboring cells. In some wireless communication systems, synchronization signals in given radio frequency spectrum band may be transmitted using one of a plurality of different subcarrier spacings. In some cases, a network entity, such as a base station, may transmit an indication to the UE that indicates the subcarrier spacing used by a cell to transmit a specific set of synchronization signals. In some cases, the UE may select a subcarrier spacing based on a database of subcarrier spacings stored locally by the UE. In some cases, the UE may select the subcarrier spacing based on a predetermined configuration.

公开(公告)号：US20210084680A1

公开(公告)日：2021-03-18

申请号：US17023840

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Wanshi Chen ,  Linhai He ,  Hung Dinh Ly ,  Seyong Park

IPC: H04W74/00 ,  H04W56/00 ,  H04W74/08 ,  H04L5/10 ,  H04L1/00 ,  H04W76/27 ,  H04W76/11 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described that relate to a two-step random access procedure. Generally, the described techniques allow different configurations for a first message of a random access procedure depending on a connected-state of the user equipment (UE) performing the random access procedure. A base station may transmit configuration information to the UE and the UE may use the configuration information to determine resources, coding, block size, or other factors for transmitting the first message based on the radio resource control (RRC) connected state of the UE. The UE may then monitor for a random access response from the base station based on the first message from the UE.

公开(公告)号：US20210076269A1

公开(公告)日：2021-03-11

申请号：US17012911

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Olufunmilola Omolade Awoniyi-Oteri ,  Tao Luo ,  Yan Zhou ,  Wooseok Nam ,  Hung Dinh Ly

IPC: H04W36/00 ,  H04W28/04 ,  H04W36/08 ,  H04W36/30 ,  H04L29/06 ,  H04L1/08 ,  H04L12/24 ,  H04W76/20 ,  H04W28/06

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a dual active link handover procedure from a source base station to a target base station. During the dual active link handover procedure, the UE may have connections to both of the base stations concurrently. In such cases, transmission opportunities for communicating with the base stations may conflict. To handle conflicting transmission opportunities, the UE may drop a monitoring occasion or a packet reception for a base station based on prioritization rules. In some cases, to mitigate packet losses, the base station may configure re-transmissions or slot aggregation to provide the UE with additional opportunities to receive a packet. Additionally or alternatively, the UE may transmit a notification message to a base station indicating dropped monitoring occasions or packets.

公开(公告)号：US10945286B2

公开(公告)日：2021-03-09

申请号：US16529656

申请日：2019-08-01

Applicant: QUALCOMM incorporated

Inventor： Hung Dinh Ly ,  Heechoon Lee

IPC: H04W4/00 ,  H04W74/08 ,  H04W72/12 ,  H04L1/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may observe control channel monitoring occasions (PMOs) corresponding to different beams configured by a base station. The UE may identify a PMO in a system information window to monitor for downlink control information scheduling a shared channel carrying a system information message. The UE may receive an indication of which synchronization signal/physical broadcast channel (SS/PBCH) blocks are actually transmitted by the base station and determine corresponding PMOs within the system information window. The UE may then monitor for the downlink control channel within the system information window during the corresponding PMOs. The base station and the UE may also implement techniques for system information message repetition within a system information window.

公开(公告)号：US10812210B2

公开(公告)日：2020-10-20

申请号：US16121523

申请日：2018-09-04

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Tao Luo ,  Heechoon Lee

IPC: H04J11/00 ,  H04B7/06 ,  H04L5/00 ,  H04W56/00 ,  H04B7/0413 ,  H04W16/28

Abstract: Methods, systems, and devices for wireless communication are described. A base station may determine a group set of at least one synchronization signal (SS) block group to be transmitted within a SS burst set. The base station may identify a group transmission configuration index associated with the group set, and then transmit the group transmission configuration index to a user equipment. The base station may also include an indication of which SS blocks in each transmitted SS block group are transmitted. A user equipment (UE) may determine transmitted SS blocks based on the group set index or the indication of which SS blocks in each transmitted SS block group are transmitted.

公开(公告)号：US20200322926A1

公开(公告)日：2020-10-08

申请号：US16834759

申请日：2020-03-30

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Jing Lei ,  Wanshi Chen

IPC: H04W72/04 ,  H04W74/08

Abstract: This disclosure describes methods, devices, and systems for techniques related to random access procedures, such as a two-step random access procedure. Generally, the described techniques support physical uplink shared channel (PUSCH) occasion (PO) aggregation in random access procedures, including aggregation configurations and communication schemes that support enhanced data transmissions, such as small data transmissions, in random access procedures. In some examples, the described techniques may include aggregating POs in a time domain, or a frequency domain, or both. A device, such as a user equipment (UE) may aggregate, in one or more of a time domain or a frequency domain, multiple POs of a set of POs, and transmit, to a device such as a base station, a random access payload of a random access message on a PUSCH using time and frequency resources of the aggregated multiple POs.

公开(公告)号：US10735078B2

公开(公告)日：2020-08-04

申请号：US16246228

申请日：2019-01-11

Applicant: QUALCOMM Incorporated

Inventor： Hung Dinh Ly ,  Tao Luo ,  Sumeeth Nagaraja

IPC: H04B7/06 ,  H04L5/00 ,  H04W76/28 ,  H04B7/08 ,  H04W74/08

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for operations with switching active bandwidth parts (BWPs), such as for radio link monitoring (RLM), beam failure recovery, random access, and/or other operations. As described herein, a UE may be configured with one or more sets of BWPs. The UE may determine/select the uplink and/or downlink BWP to use. For example, the UE can determine to use an active BWP or to switch to another BWP. The UE may use the BWP during operations, such as RLM, beam failure recovery, and/or random access, etc. for monitoring on the downlink and/or for transmitting on the uplink.

公开(公告)号：US10594534B2

公开(公告)日：2020-03-17

申请号：US16134565

申请日：2018-09-18

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Tao Luo ,  Xiaoxia Zhang ,  Hung Dinh Ly

IPC: H04W24/02 ,  H04L27/26 ,  H04W56/00 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04L25/03

Abstract: Aspects of the present disclosure describe receiving synchronization signals in wireless communications. A block of synchronization signals can be received from a base station in a first time interval. A beam identifier and a redundancy version associated with the block of synchronization signals can be determined. A broadcast channel can be received based at least in part on a timing associated with the beam identifier. The broadcast channel can be descrambled based at least in part on a scrambling code associated with the redundancy version.

公开(公告)号：US20200059922A1

公开(公告)日：2020-02-20

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 ,  H04W74/08 ,  H04L5/00

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.