公开(公告)号：US20200170008A1

公开(公告)日：2020-05-28

申请号：US16696213

申请日：2019-11-26

Applicant: QUALCOMM INCORPORATED

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

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

Abstract: Wireless communications systems and methods related to frequency resource mapping for uplink control channel communications and autonomous uplink communications in a frequency spectrum shared by multiple network operating entities are provided. A first wireless communication device identifies a first configuration from a plurality of configurations for mapping an uplink resource indicator to resources in a plurality of subbands. The first wireless communication device communicates with a second wireless communication device, a subband priority configuration. The first wireless communication device communicates, with the second wireless communication device, the uplink resource indicator. The first wireless communication device communicates, with the second wireless communication device, an uplink communication signal using a first resource of the resources based on the uplink resource indicator, the subband priority configuration, and the first configuration.

公开(公告)号：US20190297579A1

公开(公告)日：2019-09-26

申请号：US16363654

申请日：2019-03-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04W16/14 ,  H04W72/14

Abstract: Wireless communications systems and methods related monitoring the start of a transmission opportunity (TXOP) in unlicensed or shared frequency bands are provided. In one embodiment, a first wireless communication device communicates, with a second wireless communication device, a first configuration including a set of first control channel monitoring periods outside of a TXOP. The first wireless communication device communicates, with the second wireless communication device, a communication signal during the TXOP based on a second control channel monitoring period longer than each of the first control channel monitoring periods. In one embodiment, a first wireless communication device communicates, with a second wireless communication device, a configuration including a first search space for a control channel monitoring outside of a TXOP and a second search space for a control channel monitoring within the TXOP, the second search space being partially-overlapped with the first search space.

公开(公告)号：US20190254063A1

公开(公告)日：2019-08-15

申请号：US16276249

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/14 ,  H04L1/16 ,  H04L5/00 ,  H04W72/12

Abstract: Techniques for dynamically controlling long physical uplink control channel (PUCCH) transmission are described. In an aspect, the disclosure describes a method for receiving a grant to transmit a long PUCCH, determining a grant type of the grant, wherein the grant type is one of a periodic grant or an aperiodic grant, determining a slot type of the slot to transmit the long PUCCH, and transmitting the long PUCCH over one or more slots based on the grant, the determined slot type, and the determined grant type. In another aspect, the disclosure describes a method for generating a triggering signal to transmit to a user equipment (UE), the triggering signal indicating to the UE to transmit a PUCCH, transmitting the triggering signal to the UE, and receiving the long PUCCH in response to the triggering signal.

公开(公告)号：US20190229970A1

公开(公告)日：2019-07-25

申请号：US16254262

申请日：2019-01-22

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04

Abstract: New radio (NR) shared spectrum (NR-SS) listen before talk (LBT) gap optimizations are disclosed in which an indication, such as the preemption indicator, may provide an indication of a communications gap, in which preemptive communications may occur, to a user equipment (UE) currently engaged in communications, whether the preemptive communications are to another UE or network node or through different signal channels. The gap and preemptive communication may be measured in full symbol lengths, sub-symbol lengths, or interlaces. The communication gap may provide sufficient resources for the preempting node to adequately obtain the shared channel via listen before talk (LBT) procedures, and for the original UE to resume communications after the gap. The communication gap may also be optimally configured in order to provide both the UE and preempting node as much communication resources as possible within the scheduled communication opportunities.

公开(公告)号：US12289166B2

公开(公告)日：2025-04-29

申请号：US17662019

申请日：2022-05-04

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1812 ,  H04L1/1607 ,  H04W72/23

Abstract: Hybrid automatic repeat request (HARQ) acknowledgement (ACK) feedback enhancements are disclosed for new radio (NR) unlicensed (NR-U). In the downlink control channel, two sets of identifiers (IDs) may be explicitly or implicitly signaled. The two IDs identify a current set ID and an additional set ID. Where the two IDs match, then the ACK feedback transmitted in the current ACK message will reflect the current transmissions. Otherwise, where the two IDs are different, the additional set ID identifies any previous or different ACK information that should be transmitted for prior transmissions.

公开(公告)号：US12279306B2

公开(公告)日：2025-04-15

申请号：US17093374

申请日：2020-11-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W8/00 ,  H04W56/00 ,  H04W74/0808 ,  H04W74/0833 ,  H04W80/02

Abstract: Random access channel access and validity procedures are disclosed. In one aspect, the medium access control (MAC) indications multiple random access occasions (ROs) to user equipments (UEs) for random access transmissions. In such aspect, random access failure would only be declared if listen before talk (LBT) procedures for the random access transmission fail on all of the ROs indicated by the MAC layer. Similarly, in additional aspects, a UE will not apply a backoff value for any LBT failures for random access attempts that occur within an LBT time window. In further aspects, a UE may determine the validity of ROs that overlap with a discovery reference signal measurement timing configuration (DMTC) window. In such aspects, the UE may not use overlapping ROs or may determine a portion of the DMTC window that is not used for base station transmissions and declare the overlapping ROs with the unused portion valid.

公开(公告)号：US12245274B2

公开(公告)日：2025-03-04

申请号：US18057786

申请日：2022-11-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W4/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W74/0808

Abstract: This disclosure provides systems, methods and apparatus for a user equipment (UE), operating in a shared spectrum in a connected state or an idle state, to receive a channel occupancy time structure information (COT-SI) which includes one or more of a COT duration, a COT end symbol, and a COT pause indication, in addition to slot format indication for one or more slots. Some aspects described herein define a hierarchical approach to COT structure information (COT-SI) signaling. For example, a UE may be configured with a set of short COT tables using remaining minimum system information (RMSI) signaling and may receive concatenation of COT-SI signaling identifying index values in a control channel corresponding to one or more of the set of COT tables. Based on receiving COT-SI signaling, the UE may communicate in accordance with an occurrence of a COT.

公开(公告)号：US12232186B2

公开(公告)日：2025-02-18

申请号：US17774831

申请日：2020-10-27

Applicant: Qualcomm Incorporated

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

IPC: H04W74/0833 ,  H04L27/26 ,  H04W72/1268 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may indicate support of an extended cyclic prefix (ECP), where a duration of the ECP or transmitting the ECP is based on the indication. In some cases, the UE may receive an uplink grant to transmit an uplink message with an indication of the ECP, and the UE may transmit the ECP and uplink message according to a timeline based in part on the ECP. Additionally or alternatively, an uplink channel allocation indicated in the uplink grant may include a starting point for the ECP, where the UE transmits the ECP at the starting point. In some cases, the UE may multiplex uplink control information (UCI) in the uplink channel based on a timeline that is based in part on the ECP.

公开(公告)号：US12143970B2

公开(公告)日：2024-11-12

申请号：US16815849

申请日：2020-03-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/0446 ,  H04W16/14 ,  H04W74/0808

Abstract: Configurations for configured grant (CG) in new radio unlicensed (NR-U) systems is disclosed. CG configurations may, based on a periodicity, be provided either using a bitmap, shorter periodicity, or resource indicator value (RIV) signaling of start/end symbols, longer periodicity. Such CG configurations configure M sets of time division resource allocations. CG configuration may include common start/end symbols from for all contiguous allocations in one configuration. Common LBT starting points may be defined for all configured slots as indicated through a bitmap. The CG configuration allows for mini- and full slot configurations, in which the mini-slots are configured within the already configured CG slots. Repetition configurations include a type 1 for coverage and a type 2 for faster retransmission and reduced downlink feedback information (DFI) overhead. With multiple UEs, a UE identifier is added to the uplink control information (UCI). UEs may further ramp up power in the absence of DFI.

公开(公告)号：US11974136B2

公开(公告)日：2024-04-30

申请号：US16927883

申请日：2020-07-13

Applicant: QUALCOMM INCORPORATED

Inventor： Kapil Bhattad ,  Tanumay Datta ,  Ananta Narayanan Thyagarajan ,  Brahim Saadi ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04W72/12 ,  H04L27/26 ,  H04W16/14 ,  H04W72/121 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W16/14 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2628 ,  H04W72/121 ,  H04W72/21 ,  H04W72/23

Abstract: Wireless communications systems and methods related to uplink control channel transmissions with user multiplexing and reference signal transmissions are provided. A first wireless communication device obtains an uplink control channel multiplex configuration. The first wireless communication device communicates, with a second wireless communication device, a grant indicating a plurality of resource blocks spaced apart from each other by at least one other resource block in a shared radio frequency band, the plurality of resource blocks scheduled for multiple wireless communication devices based on the uplink control channel multiplex configuration. The first wireless communication device communicates, with the second wireless communication device, a first uplink control channel signal in one or more of the plurality of resource blocks based on the uplink control channel multiplex configuration.