公开(公告)号：US20210022157A1

公开(公告)日：2021-01-21

申请号：US16929939

申请日：2020-07-15

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Ananta Narayanan THYAGARAJAN ,  Xiaoxia ZHANG ,  Kapil BHATTAD

IPC: H04W72/12

Abstract: A base station may generate a channel occupancy time (COT) indication for a user equipment (UE), the COT indication including a bit configuration and a quantized remaining COT duration, and transmit the COT indication to the UE. The quantized remaining COT duration may be a COT floor or a lower quantization level, or to a COT ceiling or a higher quantization level, in which generating the COT indication for the UE may include using a slot format indicator to cancel a radio resource control configured uplink or downlink transmission between a COT duration and the COT ceiling or higher quantization level. UE methods include receiving a COT indication of a bit configuration and a quantized remaining COT duration, and communicating with the base station based on the COT indication. The UE may monitor a physical downlink control channel for uplink and downlink transmissions based on the quantized remaining COT duration.

公开(公告)号：US20210014020A1

公开(公告)日：2021-01-14

申请号：US16926547

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Tanumay DATTA ,  Ananta Narayanan THYAGARAJAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Zhifei FAN

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/12

Abstract: Certain aspects of the present disclosure provide techniques for enhanced physical uplink control channel (PUCCH) transmission. In some cases, a UE obtains payload bits to be conveyed in a physical uplink control channel (PUCCH) transmission via an interlace of resource blocks (RBs), determines a group of the RBs available to the UE, and transmits the payload bits using the determined group of RBs, wherein the transmitting involves modulating different RBs of the group by at least one of different payload bits or sequences.

公开(公告)号：US20200322948A1

公开(公告)日：2020-10-08

申请号：US16821728

申请日：2020-03-17

Applicant: QUALCOMM Incorporated

Inventor： Yisheng XUE ,  Xiaoxia ZHANG ,  Sony AKKARAKARAN ,  Ozcan OZTURK ,  Jing SUN ,  Tao LUO ,  Linhai HE

IPC: H04W72/04 ,  H04W74/08 ,  H04J3/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a downlink beam in uplink control information of a random access message, wherein the downlink beam is different from a default beam corresponding to a preamble of the random access message and a random access occasion in which the random access message is transmitted, or wherein the downlink beam is selected from a set of multiple downlink beams corresponding to the random access occasion. The UE may monitor for at least one of a random access response or a downlink communication subsequent to the random access response using the downlink beam indicated in the uplink control information. Numerous other aspects are provided.

公开(公告)号：US20200314901A1

公开(公告)日：2020-10-01

申请号：US16814634

申请日：2020-03-10

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Jing SUN ,  Xiaoxia ZHANG ,  Pravjyot Singh DEOGUN

IPC: H04W74/08 ,  H04W72/12

Abstract: This disclosure provides systems, methods, and apparatuses for channel occupancy time (COT) sharing arrangements when two or more COTs are associated with different durations, and provides arrangements for base station scheduling of downlink transmissions and selection of a listen-before-talk (LBT) configuration when two or more COTs are associated with different user equipment (UE) transmission endpoints. Furthermore, this disclosure provides systems, methods, and apparatuses for UE-side communication in accordance with scheduling information determined based on such COT sharing arrangements. By providing COT sharing arrangements when two or more COTs are associated with different durations, unlicensed channel utilization may be improved and throughput may be increased relative to when only one UE's COT can be used by the base station. By providing arrangements for scheduling downlink transmissions and selecting an LBT configuration, unlicensed channel utilization may be improved and access to the unlicensed medium may be streamlined.

公开(公告)号：US20200275493A1

公开(公告)日：2020-08-27

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 ,  H04W72/04 ,  H04L1/16 ,  H04W76/27

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：US20200266951A1

公开(公告)日：2020-08-20

申请号：US16790296

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Huilin XU ,  Xiaoxia ZHANG

IPC: H04L5/00 ,  H04W16/14 ,  H04W76/27 ,  H04L27/26 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), information identifying a core resource set (CORESET) for one or more shared radio frequency spectrum channels. The CORESET may be configured into a plurality of resource blocks based at least in part on a resource block granularity associated with the one or more shared radio frequency spectrum channels. The UE may communicate with the BS using the CORESET. Numerous other aspects are provided.

公开(公告)号：US20200245157A1

公开(公告)日：2020-07-30

申请号：US16750828

申请日：2020-01-23

Applicant: QUALCOMM Incorporated

Inventor： Vinay CHANDE ,  Xiaoxia ZHANG ,  Tao LUO ,  Arumugam CHENDAMARAI KANNAN ,  Makesh Pravin JOHN WILSON ,  Wooseok NAM ,  Sungwoo PARK ,  Jing SUN

IPC: H04W16/28 ,  H04W74/08 ,  H04W56/00

Abstract: Aspects described herein relate to receiving multiple synchronization signal block (SSB) signals from a base station, wherein the multiple SSB signals are each beamformed based on a different directional beam, selecting a signature from a signature space of a first SSB of the multiple SSB signals, and transmitting, based on the signature, a random access message to the base station, wherein the random access message includes an indicator of a preferred SSB of the multiple SSB signals.

公开(公告)号：US20200236717A1

公开(公告)日：2020-07-23

申请号：US16745052

申请日：2020-01-16

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Tao LUO ,  Sony AKKARAKARAN ,  Muhammad Nazmul ISLAM

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information for a two-step random access channel (RACH) procedure, wherein the configuration information identifies a plurality of physical uplink shared channel (PUSCH) configurations for a PUSCH of the two-step RACH procedure; and transmit the PUSCH in accordance with a PUSCH configuration, of the plurality of PUSCH configurations, wherein the PUSCH configuration is selected based at least in part on a size of a payload of the PUSCH, and wherein a preamble of the PUSCH is used to indicate the selected PUSCH configuration. Numerous other aspects are provided.

公开(公告)号：US20200236715A1

公开(公告)日：2020-07-23

申请号：US16742552

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Muhammad Nazmul ISLAM ,  Tao LUO

IPC: H04W74/08 ,  H04W56/00 ,  H04W72/12 ,  H04W40/38

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine an estimated timing advance (TA) for one or more communications included in a set of communications of a random access channel procedure. The UE may transmit, to a base station, the one or more communications based at least in part on the estimated TA. Numerous other aspects are provided.

公开(公告)号：US20200228263A1

公开(公告)日：2020-07-16

申请号：US16722989

申请日：2019-12-20

Applicant: QUALCOMM Incorporated

Inventor： Mostafa KHOSHNEVISAN ,  Xiaoxia ZHANG ,  Jing SUN ,  Tao LUO ,  Arumugam CHENDAMARAI KANNAN ,  Vinay CHANDE ,  Makesh Pravin JOHN WILSON

IPC: H04L5/00 ,  H04B7/024 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit receive point in a multi-TRP configuration, a downlink control information (DCI) communication. The UE may identify one or more quasi-co-location (QCL) relationships associated with a control resource set (CORESET) or a search space set in which the DCI communication is received. A QCL relationship, of the one or more QCL relationships, is associated with one or more physical downlink shared channel (PDSCH) layers that are transmitted from a second TRP in the multi-TRP configuration. Numerous other aspects are provided.