公开(公告)号：US10925044B1

公开(公告)日：2021-02-16

申请号：US16812179

申请日：2020-03-06

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo

IPC: H04W72/04 ,  H04L5/00

Abstract: The present disclosure provides for identifying, based on downlink control information (DCI), a physical uplink shared channel (PUSCH) transmission associated with a network entity, determining that a dedicated physical uplink control channel (PUCCH) resource is not configured for uplink transmission to the network entity, determining a default spatial relation reference signal for the PUSCH transmission based on determining that the PUCCH resource is not configured, and performing the PUSCH transmission based on the default spatial relation reference signal.

公开(公告)号：US20210045134A1

公开(公告)日：2021-02-11

申请号：US17077830

申请日：2020-10-22

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod Patil ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W72/12 ,  H04B7/06 ,  H04B7/0413 ,  H04L5/00 ,  H04B7/024

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

公开(公告)号：US20210029738A1

公开(公告)日：2021-01-28

申请号：US16891722

申请日：2020-06-03

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Xiaoxia Zhang ,  Seyedkianoush Hosseini ,  Konstantinos Dimou ,  Hamed Pezeshki

IPC: H04W74/00 ,  H04W74/08 ,  H04W56/00 ,  H04W48/10

Abstract: Methods, systems, and devices for wireless communications are described. Interference between random access channel (RACH) transmissions and Industrial Internet of Things (IIoT) transmissions may be avoided with a RACH occasion forbidden mask and a dynamic indication of availability of downlink retransmission resources. A user equipment (UE) may receive an indication of a RACH configuration and a forbidden mask associated with the RACH configuration. The UE may identify, from a set of random access occasions indicated by the RACH configuration, a subset of allowed random access occasions based on the forbidden mask. The UE may transmit a random access message during at least one allowed random access occasion of the subset. Additionally or alternatively, a base station may determine whether one or more transmissions on a component carrier (CC) were successful, and transmit downlink control information (DCI) indicating whether a set of random access occasions are available on the CC.

公开(公告)号：US20210029705A1

公开(公告)日：2021-01-28

申请号：US16899001

申请日：2020-06-11

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Xiaoxia Zhang ,  Seyed Ali Akbar Fakoorian ,  Mostafa Khoshnevisan ,  Rajat Prakash ,  Vinay Joseph ,  Sony Akkarakaran ,  Juan Montojo ,  Hamed Pezeshki ,  Konstantinos Dimou

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04L1/18 ,  H04W76/28 ,  H04W72/14 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling configuring the UE with a set of frequency resources and a semi-persistent resource allocation indicating a semi-persistent resource occasion on each frequency resource of the set. The UE may monitor semi-persistent resource occasions on each of the set of frequency resources for a copy of a data transmission. If the UE receives and decodes the data transmission from at least one of the semi-persistent resource occasions, the UE may transmit an acknowledgement message on a frequency resource of the set. Additionally, the UE may refrain from transmitting a feedback message on the other frequency resources of the set. If the UE does not receive and successfully decode the data transmission from any of the semi-persistent resource occasions, the UE may transmit a negative acknowledgement message on one of the set of frequency resources.

公开(公告)号：US10897754B2

公开(公告)日：2021-01-19

申请号：US16146628

申请日：2018-09-28

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04W72/12 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, via a first carrier, an indication of an offset for scheduling a reference signal on a second carrier, wherein the offset indicates a duration between downlink control information (DCI), that schedules the reference signal, and the reference signal; determine a first numerology of the first carrier and a second numerology of the second carrier; and determine a time offset for the reference signal based at least in part on the offset and at least one of the first numerology, the second numerology, or both the first numerology and the second numerology. Numerous other aspects are provided.

公开(公告)号：US10820333B2

公开(公告)日：2020-10-27

申请号：US15916181

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Abhishek Pramod ,  George Cherian ,  Venkata Ramanan Venkatachalam Jayaraman ,  Alfred Asterjadhi

IPC: H04W56/00 ,  H04W72/12 ,  H04B7/06 ,  H04B7/0413 ,  H04L5/00 ,  H04B7/024 ,  H04W72/04

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, stations may be scheduled across basis services sets of the access points for a downlink transmission and/or an uplink transmission.

公开(公告)号：US10805940B2

公开(公告)日：2020-10-13

申请号：US15916195

申请日：2018-03-08

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  George Cherian ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  Venkata Ramanan Venkatachalam Jayaraman

IPC: H04W28/04 ,  H04W72/12 ,  H04B7/0413 ,  H04B7/026 ,  H04B7/06 ,  H04W72/04

Abstract: Various aspects of the disclosure relate to distributed multiple-input multiple-output (MIMO) communication such as coordinated beamforming or Joint MIMO. In some aspects, distributed MIMO is used to support communication in a cluster of wireless nodes (e.g., access points). A distributed MIMO scheduling scheme as taught herein is used to schedule the wireless nodes (e.g., access points and/or stations) operating within the cluster. For example, selected stations may be triggered to communicate with respective access points.

公开(公告)号：US20200287680A1

公开(公告)日：2020-09-10

申请号：US16810676

申请日：2020-03-05

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Tao Luo ,  Kiran Venugopal ,  Jung Ho Ryu ,  Tianyang Bai

IPC: H04L5/00 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described in which spatial relations for one or more uplink reference signal transmissions, such as sounding reference signal (SRS) transmissions, may be configured and a particular spatial relation indicated in a medium access control (MAC) control element (CE). A base station may configure a pool of available spatial relations for use in SRS transmissions, and the MAC-CE may indicate which spatial relation of the set of available spatial relations is to be used. In other cases, the MAC-CE may provide all of the spatial relation information for an associated SRS transmission. The UE, responsive to receiving the MAC-CE, may transmit a SRS to the base station using the indicated spatial relation.

公开(公告)号：US10756784B2

公开(公告)日：2020-08-25

申请号：US16257652

申请日：2019-01-25

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/0408 ,  H04B7/06 ,  H04W74/08 ,  H04B17/309 ,  H04L1/16

Abstract: A user equipment (UE) may measure signal characteristics of a beam reference signal and determine, based on the measured signal characteristics, a beam repetition and diversity (R/D) mode to be used in communications between the UE and a base station. In some examples, UE feedback to the base station may include an indication of the determined beam R/D mode, as well as channel quality information associated with one or more beams to which the determined beam R/D mode is to be applied and/or operating parameters (e.g., a mixed beam repetition and diversity pattern) associated with the beam R/D mode.

公开(公告)号：US20200221446A1

公开(公告)日：2020-07-09

申请号：US16719133

申请日：2019-12-18

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Zhifei Fan ,  Tao Luo ,  Yan Zhou ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/04 ,  H04W74/08

Abstract: A base station may access a channel following a successful channel access procedure. The base station may transmit an indication of a resource allocation to a user equipment (UE). The resource allocation may include an allocation of resources for subsequent communications between the base station and the UE, for example, defining a set of transmission time intervals (TTIs) during which the UE may transmit repetitions of uplink control information. The UE may also perform a channel access procedure to access the channel. The UE may transmit repetitions of the uplink control information using the set of TTIs according to the resource configuration. In some cases, the UE may stop transmitting uplink control information repetitions after a maximum number repetitions also according to the resource configuration. The base station may then receive and combine the uplink control information.