公开(公告)号：US20220015100A1

公开(公告)日：2022-01-13

申请号：US17357342

申请日：2021-06-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Vasanthan Raghavan ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Junyi Li ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun ,  Sungwoo Park

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/08 ,  H04L27/26 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. To support a reliable array response for wideband communications, a base station may configure a set of transmission instances for a set of signals distributed across a wideband carrier bandwidth. At least one transmission instance of the set of transmission instances may be configured in each sub-band of the carrier bandwidth. The base station may transmit the set of signals in the configured transmission instances to a user equipment (UE). The UE may receive the set of signals distributed across the carrier bandwidth and may measure, for the signals, a set of signal measurements corresponding to the set of sub-bands. Based on the signal measurements, the UE may determine a set of communication beams for the set of sub-bands. Using one or more of the determined communication beams, the UE may communicate with the base station in the carrier bandwidth.

公开(公告)号：US20220014349A1

公开(公告)日：2022-01-13

申请号：US17382184

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Peter Gaal ,  Jing Sun ,  Shimman Arvind Patel

IPC: H04L5/14 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. A base station may allocate resources for communication with a user equipment (UE). The resources may include one or more subframes, and each subframe may include one or more shortened transmission time intervals (sTTIs). Each sTTI may be assigned a transmission direction according to a time division duplex (TDD) pattern. Based on traffic needs and/or interference from other UEs and/or base stations, the base station may determine to modify the TDD pattern used for communication. Accordingly, a base station may transmit an indicator in a control message or control region of a TTI or sTTI, to indicate to users that a transmission direction of an sTTI in the TDD pattern is being changed. Subsequently, a user may communicate with the base station according to the reconfigured TDD pattern.

公开(公告)号：US11224076B2

公开(公告)日：2022-01-11

申请号：US16789418

申请日：2020-02-12

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo ,  Sony Akkarakaran

IPC: H04W74/08 ,  H04W80/02 ,  H04W76/27 ,  H04W56/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, via a control channel, an order message instructing the UE to perform a random access channel (RACH) procedure, and selecting to perform a first RACH procedure or a second RACH procedure based on a preamble preparation time gap between the order message and a first occasion for transmitting a RACH preamble, or a payload preparation time gap between the order message and an occasion for transmitting a RACH payload, or both.

公开(公告)号：US11223532B2

公开(公告)日：2022-01-11

申请号：US16592709

申请日：2019-10-03

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Huilin Xu ,  Xiaoxia Zhang

IPC: H04L12/24 ,  H04W72/04 ,  H04W72/12 ,  H04L1/00 ,  H04W72/08 ,  H04W28/06 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A bandwidth part (BWP) configuration may be identified for a user equipment (UE), where the BWP configuration is part of a shared radio frequency spectrum band. In some cases, a base station may transmit a resource configuration for the BWP to the UE that indicates a set of subbands for the BWP and an indication of which subbands are available for the resource contention and possible subsequent communications. The UE and base station may determine a set of time-frequency resources for at least one downlink signal to be transmitted from the base station to the UE based on the BWP and available subbands. In some cases, the resource configurations for the BWP may include a reference signal configuration, a semi-persistent scheduling configuration, a control resource set configuration, or a combination thereof for the available subbands of the BWP.

公开(公告)号：US20210410189A1

公开(公告)日：2021-12-30

申请号：US17474750

申请日：2021-09-14

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing Sun ,  Xiaoxia Zhang ,  Ananta Narayanan Thyagarajan ,  Tamer Kadous

IPC: H04W74/08 ,  H04W74/00 ,  H04L1/00 ,  H04W72/14 ,  H04W72/12 ,  H04W16/14

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may rate match an uplink transmission around a set of resources reserved by a base station. The base station may indicate a set of reserved resources which overlaps an uplink resource allocation to the UE. The base station may transmit an indicator of the reserved resources, and the UE may identify a location of a clear channel assessment (CCA) gap in a symbol period relative to the reserved resources. By rate matching around the reserved resources and one or more CCA gaps, the UE may transmit uplink information despite the allocated uplink resources colliding with the reserved resources.

公开(公告)号：US20210410179A1

公开(公告)日：2021-12-30

申请号：US17338496

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Jing Sun ,  Piyush Gupta ,  Xiaoxia Zhang ,  Junyi Li ,  Xiaojie Wang

IPC: H04W72/14 ,  H04W72/12 ,  H04W28/02 ,  H04L5/00

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. In one aspect of the disclosure, a method of wireless communication performed by a user equipment (UE) includes receiving, from a base station, a grant message indicating a set of sidelink resources. The method further includes transmitting multiple unicast messages via multiple subgroups of the set of sidelink resources.

公开(公告)号：US20210400593A1

公开(公告)日：2021-12-23

申请号：US17465632

申请日：2021-09-02

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Jing Sun ,  Shimman Arvind Patel

IPC: H04W52/14 ,  H04W52/34 ,  H04W52/42 ,  H04W72/04 ,  H04W72/12

Abstract: Symbol alignment and power scaling are provided for different length transmission time intervals (TTIs) within predefined boundaries, such as boundaries of a slot of a subframe. Described techniques provide for identifying time and/or frequency resources for one or more TTIs and allocating such resources based on a location within a subframe, pilot signals that may be transmitted using the resources, other processing timelines, or any combination thereof. In some cases, a power allocation for symbols within a TTI may be determined based on the allocated resources for the TTI. Frequency hopping patterns and power scaling for three-symbol TTIs are also provided.

公开(公告)号：US11197294B2

公开(公告)日：2021-12-07

申请号：US16542196

申请日：2019-08-15

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang

IPC: H04W4/00 ,  H04W72/04 ,  H04J3/16 ,  H04W48/12 ,  H04W56/00 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communications are described. A base station and user equipment (UE) may implement techniques to integrate remaining minimum system information (RMSI) and synchronization signal block (SSB) delivery in a shared radio frequency spectrum band. For example, the base station may transmit SSBs and corresponding RMSI transmissions in a same transmission opportunity (TxOP) and configure resource allocations to reduce or eliminate transmission gaps. For example, the SSBs and the corresponding RMSI transmissions may be transmitted after a single, successful listen-before-talk (LBT) procedure. For each SSB, the associated RMSI control resources and RMSI shared channel resources may be nearby or continuous in time such that the SSB, control resource set, and the RMSI downlink shared channel signal are transmitted as a package.

公开(公告)号：US20210377919A1

公开(公告)日：2021-12-02

申请号：US17198949

申请日：2021-03-11

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Jing Sun ,  Piyush Gupta ,  Junyi Li ,  Xiaoxia Zhang ,  Xiaojie Wang

IPC: H04W72/04 ,  H04L1/18 ,  H04L1/00

Abstract: Systems and non-transitory computer-readable mediums for scheduling resources for a specific sidelink are described. Some embodiments provide scheduling of resources for a sidelink between a first user equipment (UE) in communication with a base station and a specified second UE in communication with the first UE, such as using downlink control information (DCI) and/or radio resource control (RRC) signaling. The scheduling of sidelink resources may be with respect to a dynamic grant (DG) or a configured grant (CG). Other aspects and features are also claimed and described.

公开(公告)号：US11191103B2

公开(公告)日：2021-11-30

申请号：US16674763

申请日：2019-11-05

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Ozcan Ozturk

IPC: H04W74/00 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12

Abstract: Uplink signaling in unlicensed or shared spectrum may be subject to listen before talk procedures resulting in failed signaling transmissions. A user equipment (UE) may perform uplink signaling using a configuration based on whether a base station has entered a channel occupancy time (COT) shared with the UE. A UE may determine that the UE has an uplink transmission for a base station. A UE may determine whether the base station has entered a channel occupancy time that is shared with the UE. A UE may determine configured random access or scheduling request transmission resources based on the channel occupancy time, wherein a density of transmission opportunities is greater outside of the shared channel occupancy time than within the shared channel occupancy time. A UE may transmit a random access message or the scheduling request on selected configured resources.