公开(公告)号：US20200374943A1

公开(公告)日：2020-11-26

申请号：US16875462

申请日：2020-05-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W72/04 ,  H04W56/00

Abstract: This disclosure provides systems, methods, and apparatuses for random access channel (RACH) occasions that overlap each other in time and frequency. In one aspect, the RACH occasions may use different preamble sequence sets. A base station may signal configuration information indicating the preamble sequence sets for the RACH occasions and information indicating a time-frequency resource allocation of the RACH occasions. A UE may perform a random access procedure in accordance with the configuration information.

公开(公告)号：US20200275475A1

公开(公告)日：2020-08-27

申请号：US16793756

申请日：2020-02-18

Applicant: QUALCOMM Incorporated

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

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

Abstract: Configured grant operations for new radio (NR) unlicensed spectrum (NR-U) carrier aggregation (CA) are disclosed. In an aspect, a method of wireless communication by a user equipment (UE) may include transmitting uplink (UL) data to a base station according to a configured grant configuration. The method may also include determining a carrier to receive feedback from the base station based on the configured grant configuration. The method may further include receiving feedback from the base station on the carrier in response to the transmitting of the UL data.

公开(公告)号：US20250071811A1

公开(公告)日：2025-02-27

申请号：US18943305

申请日：2024-11-11

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Xiaoxia ZHANG ,  Tanumay DATTA ,  Ananta Narayanan THYAGARAJA ,  Jing SUN

IPC: H04W74/0808 ,  H04W16/14 ,  H04W74/00

Abstract: Wireless communications systems and methods are provided. A method of wireless communication may include performing a first listen-before-talk (LBT) procedure associated with a channel, wherein a channel occupancy time (COT) for the channel is acquired based on the first LBT being successful, communicating a first communication signal in a first link direction during the COT, switching from the first link direction to a second link direction different from the first link direction, and communicating after the switching, a second communication signal in the second link direction without performing a second LBT.

公开(公告)号：US20240147362A1

公开(公告)日：2024-05-02

申请号：US17769129

申请日：2020-11-04

Applicant: Qualcomm Incorporated

Inventor： Ananta Narayanan THYAGARAJAN ,  Sreekanth DAMA ,  Tanumay DATTA ,  Kapil BHATTAD ,  Xiaoxia ZHANG ,  Jing SUN ,  Ozcan OZTURK ,  Shashidhar VUMMINTALA ,  Gowrisankar SOMICHETTY ,  Pravjyot Singh DEOGUN ,  Ahmed ZAKI

IPC: H04W52/02 ,  H04W16/14 ,  H04W76/28

CPC classification number: H04W52/0229 ,  H04W16/14 ,  H04W76/28

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for improving communications between a user equipment (UE) and a base station in a shared radio frequency spectrum while the UE is operating in a discontinuous reception (DRX) mode. In particular, the UE may be configured to adapt operation in a DRX mode based on whether a base station has access to a shared radio frequency spectrum. For example, the UE may adjust a length of an on-duration for monitoring for a data transmission from the base station, adjust a periodicity for monitoring for control information from the base station, determine whether to keep monitoring for wake-up signaling from the base station, etc. based on whether the base station has access to the shared radio frequency spectrum. Further techniques for improving operation in a DRX mode are also described.

公开(公告)号：US20210136818A1

公开(公告)日：2021-05-06

申请号：US17061125

申请日：2020-10-01

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh DEOGUN ,  Abhijit BHATTACHARYA ,  Xiaoxia ZHANG ,  Ozcan OZTURK ,  Jing SUN ,  Kapil BHATTAD ,  Tanumay DATTA

IPC: H04W74/08 ,  H04W76/18 ,  H04W76/19 ,  H04W72/04 ,  H04W52/36 ,  H04W24/08 ,  H04W74/02

Abstract: The present disclosure relates to wireless communications, and more particularly to enhancements to a random access channel (RACH) procedure for use in New Radio (e.g., 5G) communications in the unlicensed spectrum (also referred to as NR-U). The present disclosure provides a user equipment (UE) or network entity that determines an available RACH occasion (RO) within a slot for a message transmission according to one of a two-step RACH procedure or a four-step RACH procedure, wherein the available RO is adjacent to at least one unavailable RO within the slot. The UE or network entity may further perform, during the RO, the message transmission according to one of the two-step RACH procedure or the four-step RACH procedure.

公开(公告)号：US20210037501A1

公开(公告)日：2021-02-04

申请号：US16879254

申请日：2020-05-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/02 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a control channel resource configuration associated with an unlicensed spectrum, wherein the control channel resource configuration is associated with an indication of whether a resource to be used for an uplink control channel in the unlicensed spectrum is a fixed resource, a floating resource, or an adaptive resource. The UE may identify the resource based at least in part on the control channel resource configuration. The UE may transmit uplink control information on the identified resource. Numerous other aspects are provided.

公开(公告)号：US20200267760A1

公开(公告)日：2020-08-20

申请号：US16777752

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W24/08 ,  H04L1/00 ,  H04L5/10 ,  H04L5/00 ,  H04W72/04

Abstract: This disclosure provides systems, methods, and apparatuses for wireless communication. In some aspects, a user equipment (UE) may enable adaptive receive diversity (RxD) by receiving an indicator for a channel occupancy time (COT), outside of the COT and in a non-RxD mode, and may transfer to the RxD mode for reception during the COT. After an end to the COT, the UE may return to the non-RxD mode. In this way, the UE enables improved power gain, diversity gain, or spatial nulling gain during a COT, and enables reduced power utilization outside of the COT.

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：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：US20220201749A1

公开(公告)日：2022-06-23

申请号：US17654649

申请日：2022-03-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W16/14

Abstract: Wireless communications systems and methods are provided. A method of wireless communication may include performing a first listen-before-talk (LBT) procedure associated with a channel, wherein a channel occupancy time (COT) for the channel is acquired based on the first LBT being successful, communicating a first communication signal in a first link direction during the COT, switching from the first link direction to a second link direction different from the first link direction, and communicating after the switching, a second communication signal in the second link direction without performing a second LBT.