公开(公告)号：US12063684B2

公开(公告)日：2024-08-13

申请号：US17249586

申请日：2021-03-05

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Kapil Bhattad

IPC: H04W72/12 ,  H04L5/00 ,  H04L5/10 ,  H04W72/1268 ,  H04W72/23 ,  H04W74/0808

CPC classification number: H04W74/0808 ,  H04L5/0051 ,  H04L5/10 ,  H04W72/1268 ,  H04W72/23

Abstract: Wireless communications systems and methods related to sharing a channel occupancy time (COT) associated with a scheduled UL transmission in a frequency spectrum shared by multiple network operating entities are provided. A first wireless communication device communicates, with a second wireless communication device, a first uplink (UL) scheduling grant. The first wireless communication device communicates, with second wireless communication device, a first UL communication signal based on the first UL scheduling grant during a first COT, the first COT based on an extended clear channel assessment (eCCA) associated with the first UL communication signal. The first wireless communication device communicates, with the second wireless communication device, a downlink (DL) communication signal during the first COT based on COT sharing information associated with the first COT.

公开(公告)号：US11968049B2

公开(公告)日：2024-04-23

申请号：US17027213

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Jing Sun ,  Pravjyot Singh Deogun

IPC: H04L1/1812 ,  H04W72/044 ,  H04W72/1273 ,  H04W72/23 ,  H04W76/11 ,  H04W76/27

CPC classification number: H04L1/1819 ,  H04W72/0466 ,  H04W72/1273 ,  H04W72/23 ,  H04W76/11 ,  H04W76/27

Abstract: Enhancements to downlink feedback information (DFI) signaling is disclosed. According to the disclosed aspects, indications of DFI presence in downlink control information (DCI) messaging are provided that limit any increase to DCI overhead for uplink grants. In a first aspect, DFI presence may be signaled using unused or disallowed DCI variable states for indication of DFI presence. In another aspect, a separate bit may be added to a DCI message for indicating DFI presence. Additional aspects include repurposing DCI fields which are specific to cell radio network temporary identifier (C-RNTI)-based uplink grants, or may defining a new RNTI (e.g., DFI-RNTI) for indicating DFI presence. Further aspects may provide for radio resource control (RRC) signaling that configures which DCI variable state can be used to indicate DFI presence.

公开(公告)号：US11863331B2

公开(公告)日：2024-01-02

申请号：US16948843

申请日：2020-10-01

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Jing Sun ,  Pravjyot Singh Deogun ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04L1/1867 ,  H04L1/1812 ,  H04W72/566 ,  H04L1/1829 ,  H04W72/23

CPC classification number: H04L1/1887 ,  H04L1/189 ,  H04L1/1812 ,  H04L1/1819 ,  H04L1/1864 ,  H04L5/0055 ,  H04W72/23 ,  H04W72/569

Abstract: Wireless communications systems and methods related to unscheduled uplink hybrid automatic repeat request (HARQ) data transmissions in a shared radio frequency band are provided. A user equipment (UE) determine priorities for a plurality of transport blocks (TBs) associated with a plurality of hybrid automatic repeat request (HARQ) processes for transmission during configured transmission periods. The UE transmits, to a base station (BS), the plurality of TBs in a shared radio frequency band during the configured transmission periods based on the determined priorities.

公开(公告)号：US11849481B2

公开(公告)日：2023-12-19

申请号：US16912261

申请日：2020-06-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/0446 ,  H04L1/1607 ,  H04W24/08 ,  H04L5/00

CPC classification number: H04W74/0808 ,  H04L1/1614 ,  H04L5/0094 ,  H04W16/14 ,  H04W24/08 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications in unlicensed spectrum are described. In some wireless communications systems, a user equipment may identify a service parameter configured for the user equipment for a shared radio frequency channel, such as a subcarrier spacing or beam direction for a directional beam for communications with a base station. The base station may acquire a channel occupancy time for the shared radio frequency channel. The user equipment may monitor for and receive a control message for the channel occupancy time from the base station. The control message may include an indication of service associated with the service parameter and a remaining duration of the channel occupancy time. Based on the indications, the user equipment may adapt one or more receive parameters (e.g., a monitoring periodicity, monitoring time occasions, and whether to skip monitoring) for communicating with the base station during the channel occupancy time.

公开(公告)号：US11672008B2

公开(公告)日：2023-06-06

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

CPC classification number: H04W74/0808 ,  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：US11658784B2

公开(公告)日：2023-05-23

申请号：US17405006

申请日：2021-08-17

Applicant: QUALCOMM INCORPORATED

Inventor： Arul Durai Murugan Palanivelu ,  Kapil Bhattad ,  Manikandan Chandrasekar ,  Alberto Rico Alvarino

IPC: H04L5/00 ,  H04W4/70 ,  H04W64/00 ,  H04W56/00 ,  H04W72/04 ,  H04W72/044 ,  H04L67/12

CPC classification number: H04L5/0048 ,  H04L5/0005 ,  H04L5/0053 ,  H04W4/70 ,  H04W56/001 ,  H04W64/00 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0466 ,  H04L67/12

Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.

公开(公告)号：US11653388B2

公开(公告)日：2023-05-16

申请号：US16742558

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Kapil Bhattad ,  Ananta Narayanan Thyagarajan

IPC: H04W74/08 ,  H04B17/318 ,  H04W72/0453

CPC classification number: H04W74/0833 ,  H04B17/318 ,  H04W72/0453

Abstract: Frequency division multiplex (FDM) random access configuration and selection is disclosed for new radio (NR) unlicensed (NR-U) operations. For idle mode user equipment (UEs), the network may configured multiple frequency bands for random access. The UE may then select different frequencies for random access when default frequencies experience interference. For connected mode UEs, the network may configured which of multiple configured frequency bands the connected UE may use for autonomous random access transmissions. The UE may then select any of the allowed frequency bands for autonomous random access. Contention-free random access resources may be configured on one or more of the multiple configured frequency bands. When contention-free resources are available, the UEs may initially attempt access of the contention-free resources on the default frequency band before attempting random access on other configured bands or the UE is provided a priority of bands for access by the network.

公开(公告)号：US11595161B2

公开(公告)日：2023-02-28

申请号：US16685755

申请日：2019-11-15

Applicant: QUALCOMM Incorporated

Inventor： Kapil Bhattad ,  Alberto Rico Alvarino

IPC: H04L1/18 ,  H04W72/04 ,  H04L1/16 ,  H04L5/00 ,  H04L5/16 ,  H04L1/1829 ,  H04L1/1812 ,  H04W72/0446 ,  H04L1/1607 ,  H04L1/1867

Abstract: Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).

公开(公告)号：US11589351B2

公开(公告)日：2023-02-21

申请号：US16332497

申请日：2017-09-29

Applicant: QUALCOMM Incorporated

Inventor： Shashidhar Vummintala ,  Gowrisankar Somichetty ,  Kapil Bhattad ,  Alberto Rico Alvarino

IPC: H04W72/04 ,  H04W72/0453 ,  H04W4/70 ,  H04L5/00 ,  H04B1/713 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for higher bandwidth and data rate for enhanced machine type communications (eMTC). According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes determining frequency resources within one or more configured narrowband regions of a system bandwidth to monitor for a transmission and monitoring for the transmission on the determined frequency resources within the one or more narrowband regions of the system bandwidth.

公开(公告)号：US11575478B2

公开(公告)日：2023-02-07

申请号：US16229159

申请日：2018-12-21

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Kapil Bhattad ,  Peter Gaal ,  Tao Luo ,  Xiaoxia Zhang

IPC: H04L5/00 ,  H04L1/00 ,  H04B7/024

Abstract: Certain aspects of the present disclosure relate to techniques for determining resource elements REs used for Coordinated Multipoint (CoMP) transmission schemes. The techniques generally include determining, by a User Equipment (UE), a set of data REs used for Coordinated Multipoint (CoMP) operation. The determination is based on a CoMP scheme and data REs available to particular base stations involved in the CoMP operation. The technique further includes processing data received via the CoMP operation on the determined set of data REs.