公开(公告)号：US11382127B2

公开(公告)日：2022-07-05

申请号：US16864110

申请日：2020-04-30

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04W72/14 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W72/12

Abstract: Certain aspects of the present disclosure provide techniques for time-domain resource allocation (TDRA) for multi-transmission time interval (TTI) grants.

公开(公告)号：US11375539B2

公开(公告)日：2022-06-28

申请号：US16993192

申请日：2020-08-13

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W74/00 ,  H04W72/14 ,  H04W72/04 ,  H04W74/08 ,  H04L1/00 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described that support listen before talk (LBT) for uplink transmissions using multiple subbands. A base station may support communication with a user equipment (UE) via multiple subbands and may transmit an uplink grant to the UE that allocates resources of the multiple subbands for transmission of a shared data channel by the UE. The base station may include an indication within the uplink grant that indicates to the UE to perform a given type of LBT for each subband. After transmitting the uplink grant, the base station may transmit control information or other signaling (e.g., channel occupancy time system information (COT-SI)) that indicates subbands on which the UE is to perform a given type of LBT or other subbands on which the UE is to perform a different type of LBT.

公开(公告)号：US11357038B2

公开(公告)日：2022-06-07

申请号：US16790664

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/10 ,  H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for encoding uplink data for transmission based on control information included in a first uplink grant corresponding to a first set of uplink resources, receiving a second uplink grant associated with a second set of uplink resources, wherein the second uplink grant is associated with the encoded uplink data for transmission, determining a starting time (e.g., a first delay or a second delay) for the second set of uplink resources based at least in part on a timing of the encoding with respect to the second uplink grant, and transmitting uplink data during the second set of uplink resources based on the determined starting time.

公开(公告)号：US20220132515A1

公开(公告)日：2022-04-28

申请号：US17571293

申请日：2022-01-07

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W72/08 ,  H04L61/5069 ,  H04W4/08 ,  H04W72/02 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00 ,  H04W28/02 ,  H04B1/10

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a group identifier of the UE. The UE may receive, from the base station, an indication of one or more group identifiers associated with scheduled communications with the base station during a time period. The UE may contend, based at least in part on the group identifier of the UE and the one or more group identifiers received from the base station, for access to a set of autonomous uplink (AUL) resources during the time period. The UE may perform, based at least in part on the contending, an AUL transmission to the base station using the set of autonomous uplink resources.

公开(公告)号：US11291025B2

公开(公告)日：2022-03-29

申请号：US16929939

申请日：2020-07-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  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：US11229016B2

公开(公告)日：2022-01-18

申请号：US16048705

申请日：2018-07-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Kapil Bhattad ,  Jing Sun ,  Seyed Ali Akbar Fakoorian

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W72/02 ,  H04W52/50 ,  H04W52/34

Abstract: Wireless communications systems and methods related to improving multiplexing capability in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a communication signal in a frequency spectrum. The configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period. The configuration indicates resources in the frequency spectrum over the time period and a frequency distribution mode of the resources. The first wireless communication device communicates, with a second wireless communication device, the communication signal in the frequency spectrum during the time period based on the configuration.

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：US20210336721A1

公开(公告)日：2021-10-28

申请号：US17324625

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04L1/16 ,  H04W72/12 ,  H04W72/04 ,  H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated transport block (TB) level or code block group (CBG) level group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback at a TB level, CBG level, or combinations thereof. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.

公开(公告)号：US11075718B2

公开(公告)日：2021-07-27

申请号：US16786711

申请日：2020-02-10

Applicant: QUALCOMM Incorporated

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

IPC: H04L29/06 ,  H04L1/18 ,  H04L5/00 ,  H04W16/14 ,  H04W74/08 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications in a shared spectrum are described. A user equipment (UE) may transmit, via an autonomous uplink (AUL) communication, one or more transport blocks to a base station. Each transport block may include a plurality of code block groups (CBGs). The base station may provide CBG-level feedback to the UE based at least in part on the AUL communication. For example, a downlink feedback indication (DFI) bit sequence may be partitioned to include a first partition comprising AUL hybrid automatic repeat request (HARQ) feedback information and a second partition comprising contention window (CW) update information (e.g., for a subsequent AUL clear channel assessment). In some cases, the number of bits in the first partition may be based on a number of AUL HARQ processes of the UE and an AUL HARQ process granularity.

公开(公告)号：US11032029B2

公开(公告)日：2021-06-08

申请号：US16899548

申请日：2020-06-11

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Jing Sun ,  Kapil Bhattad ,  Xiaoxia Zhang

IPC: H04L12/28 ,  H04L1/16 ,  H04W72/12 ,  H04W72/04 ,  H04B7/0456 ,  H04J1/16

Abstract: Methods, systems, and devices for wireless communications are described that support group-based acknowledgment feedback techniques. Two or more different groups of downlink transmissions may each have an associated transport block (TB) level or code block group (CBG) level group-based acknowledgment feedback, and a base station may transmit downlink control information to a UE that indicates one or more parameters that are used to determine which downlink transmissions are to be reported in the group-based feedback at a TB level, CBG level, or combinations thereof. Based on the parameters in the downlink control information, the UE may determine the feedback to be reported, and a timing for when to transmit the feedback to the base station.