公开(公告)号：US20180097596A1

公开(公告)日：2018-04-05

申请号：US15718447

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Arul Durai Murugan PALANIVELU ,  Kapil BHATTAD ,  Manikandan CHANDRASEKAR ,  Alberto RICO ALVARINO

IPC: H04L5/00 ,  H04W72/04 ,  H04W56/00

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：US20240313899A1

公开(公告)日：2024-09-19

申请号：US18614381

申请日：2024-03-22

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：US20240129094A1

公开(公告)日：2024-04-18

申请号：US17768395

申请日：2020-10-27

Applicant: Qualcomm Incorporated

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

IPC: H04L5/00 ,  H04W72/11 ,  H04W72/232

CPC classification number: H04L5/0053 ,  H04L5/0094 ,  H04W72/11 ,  H04W72/232

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may receive a first control message associated with a first, periodic resource grant and including a first resource allocation field associated with a first subcarrier spacing. The user equipment may receive a second control message that includes the first resource allocation field at a first value. The user equipment may deactivate the first resource grant based on the first value and the first subcarrier spacing. The user equipment may receive a third control message associated with a second, periodic resource grant and including a second resource allocation field associated with a second subcarrier spacing. The user equipment may receive a fourth control message that includes a second resource allocation field at a second value different from the first value. The user equipment may deactivate the second resource grant based on the second value and the second subcarrier spacing.

公开(公告)号：US20230328787A1

公开(公告)日：2023-10-12

申请号：US18193059

申请日：2023-03-30

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/1273 ,  H04W72/1268 ,  H04W72/23

CPC classification number: H04W74/0816 ,  H04L5/0048 ,  H04W72/23 ,  H04W72/1268 ,  H04W72/1273

Abstract: Wireless communications systems and methods related to communicating a structure of a channel occupancy time (COT) are provided. A first wireless communication device communicates with a second wireless communication device, a first indicator indicating at least one of a subband configuration for a COT or a duration of the COT. The first wireless communication device communicates with the second wireless communication device during the COT, a first communication signal based on at least one of the subband configuration for the COT or the duration of the COT. The first wireless communication device communicates with the second wireless communication device during the COT, a second indicator indicating an update for at least one of the subband configuration for the COT or the duration of the COT. Additionally, the first wireless communication device communicates with the second wireless communication device during the COT, a second communication signal based on the update.

公开(公告)号：US20230198698A1

公开(公告)日：2023-06-22

申请号：US18169106

申请日：2023-02-14

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0046 ,  H04W72/21 ,  H04L5/0007 ,  H04L27/2604

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：US20230164836A1

公开(公告)日：2023-05-25

申请号：US18057786

申请日：2022-11-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/0446 ,  H04W72/23

CPC classification number: H04W74/0808 ,  H04W72/0446 ,  H04W72/23

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：US20220408494A1

公开(公告)日：2022-12-22

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: H04W74/08 ,  H04L27/26 ,  H04W72/14 ,  H04W72/12

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：US20220386373A1

公开(公告)日：2022-12-01

申请号：US17755218

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide improved techniques for monitoring a downlink control channel. For example, a method includes switching, at a first time period, to monitoring a downlink control channel according to a second group of search space sets in an unlicensed spectrum. The method further includes switching, after the first time period, to monitoring the downlink control channel according to a first group of search space sets in the unlicensed spectrum based on at least one of: i) expiration of a timer started based on the switching to monitoring the downlink control channel according to the second group of search space sets; or (ii) end of a channel occupancy time (COT), of a serving cell, during which the UE monitors the downlink control channel according to the second group of search space sets.

公开(公告)号：US20220303095A1

公开(公告)日：2022-09-22

申请号：US17806133

申请日：2022-06-09

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Alberto RICO ALVARINO ,  Hao XU

IPC: H04L5/00 ,  H04W36/00 ,  H04W36/08 ,  H04W48/16 ,  H04W48/12 ,  H04L1/00

Abstract: Wireless communications systems and methods related to system information communications and decoding are provided. In one embodiment, a wireless communication device receives one or more known bits. The wireless communication device receives a first encoded information block. The wireless communication device decodes the first encoded information block to generate a first information block based on the one or more known bits. In one embodiment, a wireless communication device receives a first encoded information block including a first bit pattern. The wireless communication device receives a second encoded information block including a second bit pattern. The wireless communication device jointly decodes the first encoded information block and the second encoded information block based on an assumption that a difference between the first bit pattern and the second bit pattern is within a subset of a plurality of bit-change patterns.

公开(公告)号：US20220295575A1

公开(公告)日：2022-09-15

申请号：US17755565

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W24/08

Abstract: Wireless communications systems and methods related frame based equipment (FBE) communications in a wireless communication network are provided. A user equipment (UE) receives, from a base station (B S), system information including a frame based equipment (FBE) configuration indicating a plurality of frame periods. Each frame period of the plurality of frame periods includes a gap period, where a start or an end of the gap period of a first frame period of the plurality of frame periods is aligned to a beginning of a radio frame. The UE communicates, with the B S, a communication based on the FBE configuration