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：US11895701B2

公开(公告)日：2024-02-06

申请号：US17302547

申请日：2021-05-06

Applicant: QUALCOMM Incorporated

Inventor： Bapineedu Chowdary Gummadi ,  Pravjyot Singh Deogun ,  Hem Agnihotri

IPC: H04W16/14 ,  H04W74/08 ,  H04W88/06

CPC classification number: H04W74/0808 ,  H04W16/14 ,  H04W88/06

Abstract: Wireless communications systems and methods related to channel occupancy time (COT) sharing in multi-subscriber identity module (MultiSim) devices are provided. A user equipment (UE) transmits, based on a first subscriber identity during a first portion of a channel occupancy time (COT) in an unlicensed band, a first communication signal. The UE transmits, based on a second subscriber identity during a second portion of the COT, a second communication signal, the second subscriber identity being different from the first subscriber identity.

公开(公告)号：US11716175B2

公开(公告)日：2023-08-01

申请号：US17315948

申请日：2021-05-10

Applicant: QUALCOMM Incorporated

Inventor： Pravjyot Singh Deogun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Kapil Bhattad

IPC: H04W56/00 ,  H04L1/1812 ,  H04W74/08 ,  H04L5/00 ,  H04W16/14 ,  H04W72/23

CPC classification number: H04L1/1819 ,  H04L5/0055 ,  H04W16/14 ,  H04W72/23 ,  H04W74/0808

Abstract: Techniques are described herein for improved methods, systems, devices, and apparatuses that support procedures for configured grants. Generally, the described techniques may relate to restricting a number of retransmissions used during a hybrid automatic repeat request (HARQ) process or managing potential scheduling conflicts for the HARQ process from dynamic grants and configured grants. A device (e.g., a user equipment) may initiate a timer or a counter associated with a HARQ process for indicating that transmission attempts for the HARQ process are permitted. The device may identify a transmission occasion of a configured grant in an unlicensed frequency spectrum band that is associated with the HARQ process and may determine that the timer associated with the HARQ process is active. The device may perform a transmission attempt over the transmission occasion of the configured grant based on determining that the timer is active.

公开(公告)号：US11606777B2

公开(公告)日：2023-03-14

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 ,  H04W72/0453 ,  H04W74/08 ,  H04W16/14

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：US11375542B2

公开(公告)日：2022-06-28

申请号：US16841278

申请日：2020-04-06

Applicant: QUALCOMM Incorporated

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

IPC: H04L12/28 ,  H04W74/08 ,  H04W72/04 ,  H04L1/16

Abstract: The described techniques provide for efficiently contending for access to a shared radio frequency spectrum for communicating on multiple allocated sub-bands across multiple carriers. As described herein, a user equipment (UE) may first identify allocated sub-bands across multiple carriers in a shared radio frequency spectrum. The UE may then select a carrier and at least one of the multiple allocated sub-bands within the carrier on which to perform a listen-before-talk (LBT) procedure of a first type, and the UE may perform the LBT procedure of the first type on the at least one sub-band. In addition, the UE may also perform LBT procedures of a second type on allocated sub-bands within carriers different from the selected carrier. Based on the results of the LBT procedures, the UE may communicate with the base station on the allocated sub-bands across the multiple carriers in the shared radio frequency spectrum.

公开(公告)号：US11201658B2

公开(公告)日：2021-12-14

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: H04B7/08 ,  H04W74/08 ,  H04L1/00 ,  H04L5/10 ,  H04W72/04 ,  H04L5/00 ,  H04W24/08

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：US20210160815A1

公开(公告)日：2021-05-27

申请号：US16948677

申请日：2020-09-28

Applicant: QUALCOMM INCORPORATED

Inventor： Jing Sun ,  Pravjyot Singh Deogun ,  Ozcan Ozturk ,  Xiaoxia Zhang

IPC: H04W68/00 ,  H04W72/04 ,  H04W24/08 ,  H04W76/28

Abstract: Wireless communications systems and methods related to monitoring a paging signal are provided. A wireless communication device may receive a first system information signal from a base station (BS) and may configure a counter with an initial counter value in response to receiving the first system information signal. Additionally, the wireless communication device may receive a second system information signal from the BS and may modify the counter value of the counter in response to receiving the second system information signal. The wireless communication device may monitor for a paging signal from the BS while the counter is outstanding.

公开(公告)号：US20210105103A1

公开(公告)日：2021-04-08

申请号：US16948843

申请日：2020-10-01

Applicant: QUALCOMM INCORPORATED

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

IPC: H04L1/18 ,  H04W72/12

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：US20210051631A1

公开(公告)日：2021-02-18

申请号：US16987064

申请日：2020-08-06

Applicant: QUALCOMM INCORPORATED

Inventor： Pravjyot Singh Deogun ,  Kapil Bhattad ,  Jing Sun ,  Mostafa Khoshnevisan ,  Xiaoxia Zhang ,  Ahmed Zaki ,  Gowrisankar Somichetty

IPC: H04W72/04 ,  H04L1/18 ,  H04W72/14

Abstract: Wireless communications systems and methods related to bandwidth part (BWP) switching after data communication are provided. A user equipment (UE) receives, from a base station (BS) in a first bandwidth part (BWP), one or more data bursts and BWP switching information. The UE switches from the first BWP to a second BWP based on the BWP switching information after receiving the one or more data bursts. The UE communicates, with the BS, a communication in the second BWP after the switching.

公开(公告)号：US12302247B2

公开(公告)日：2025-05-13

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

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.