公开(公告)号：US20230015997A1

公开(公告)日：2023-01-19

申请号：US17379697

申请日：2021-07-19

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Jing Sun ,  Yisheng Xue ,  Xiaoxia Zhang ,  Sony Akkarakaran ,  Tao Luo ,  Juan Montojo ,  Peter Gaal ,  Piyush Gupta

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04L1/18 ,  H04W72/12

Abstract: Techniques for wireless communications are described. A user equipment (UE) may receive downlink control information (DCI) scheduling sidelink transmissions in one or more sets of multiple transmission time intervals (TTIs) over a shared spectrum. The UE may perform a listen-before-talk (LBT) for one or more of the TTIs in the one or more sets of multiple TTIs, and the UE may transmit, to a base station, an indication of results of the LBT performed for the one or more TTIs. Because the UE may provide the results of the LBT to the base station, the base station may be able to schedule sidelink transmissions from the UE based on the results of the LBT. As such, the UE may experience increased throughput in sidelink communications since the scheduling at the base station may be improved.

公开(公告)号：US11558820B2

公开(公告)日：2023-01-17

申请号：US17086062

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Le Liu ,  Alberto Rico Alvarino ,  Peter Gaal ,  Tao Luo

IPC: H04W52/02 ,  H04B7/0413 ,  H04W76/15 ,  H04W88/02

Abstract: Methods, systems, and devices for wireless communications are described. A method for wireless communication at a user equipment (UE) may include: receiving a multicast bandwidth part configuration for multicast communications between a base station and the UE, where the multicast bandwidth part configuration includes a maximum number of multiple-input, multiple-output layers to be used for the multicast communications; establishing a multicast link with the base station for multicast communications; determining to use a reduced number of antennas for multicast reception than the number of antennas used for unicast reception, or determining that the UE is able to decode the multicast communications prior to a remaining portion of the multicast communications; and receiving the multicast communications via the reduced number of antennas, or reducing the radio frequency power prior to completion of a number of repetitions or retransmissions of the multicast communications.

公开(公告)号：US11553537B1

公开(公告)日：2023-01-10

申请号：US17805386

申请日：2022-06-03

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Jing Sun ,  Jae Ho Ryu ,  Xiaoxia Zhang ,  Tao Luo ,  Qingjiang Tian ,  Mostafa Khoshnevisan

IPC: H04W74/08 ,  H04W72/04 ,  H04L1/18

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for signaling a new data indicator (NDI) and/or redundancy version (RV) for physical uplink/downlink shared channel (PxSCH) transmissions scheduled by a multi-PxSCH downlink control information (DCI) grant. In some cases, these techniques may be used even when a scheduled PxSCH transmission is invalid. In some cases, a number of bits in an NDI field of the DCI corresponds to a number of PxSCHs scheduled by the multi-PxSCH DCI grant. In some cases, a number of bits in an RV field of the DCI corresponds the number of PxSCHs scheduled by the multi-PxSCH DCI grant.

公开(公告)号：US11553425B2

公开(公告)日：2023-01-10

申请号：US17090721

申请日：2020-11-05

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jing Sun ,  Alberto Rico Alvarino ,  Le Liu ,  Peter Gaal ,  Xipeng Zhu

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) may monitor a pre-wakeup window during an inactive duration of a multicast discontinuous reception (DRX) cycle that includes multiple active durations and multiple inactive durations. The UE may receive, in the pre-wakeup window, a wakeup signal that indicates a quantity of the active durations in the multicast DRX cycle that the UE is to monitor and the UE may monitor the indicated quantity of active durations for multicast signals for the UE.

公开(公告)号：US11552735B2

公开(公告)日：2023-01-10

申请号：US17350931

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Lorenzo Ferrari ,  Srinivas Yerramalli ,  Yih-Hao Lin ,  Jing Sun ,  Alexandros Manolakos ,  Rajat Prakash ,  Marwen Zorgui

IPC: H04L1/00 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives a sounding reference signal (SRS) resource configuration, the SRS resource configuration indicating at least a comb pattern for at least one SRS resource allocated to the UE and a puncturing unit for the comb pattern, wherein the comb pattern is divided into one or more puncturing units, wherein each puncturing unit comprises one or more time units of the comb pattern, and wherein each of the one or more time units comprises two or more symbols, and refrains from transmitting all SRS transmissions of the at least one SRS resource within a first puncturing unit of the one or more puncturing units based on a determination that one or more SRS transmissions of the at least one SRS resource within the first puncturing unit are to be dropped.

公开(公告)号：US11546947B1

公开(公告)日：2023-01-03

申请号：US17443400

申请日：2021-07-26

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Jun Ma ,  Morteza Soltani ,  Jing Sun ,  Raviteja Patchava

IPC: H04W74/08 ,  H04B7/06 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may receive, using a first beam, a first physical random access channel (PRACH) communication during a first random access channel (RACH) occasion. The base station may receive, during the first RACH occasion, a data communication having a timing that is aligned with a timing of the PRACH communication to provide a beam switching gap before reception of a second PRACH communication during a second RACH occasion. Numerous other aspects are described.

公开(公告)号：US11546916B2

公开(公告)日：2023-01-03

申请号：US17081878

申请日：2020-10-27

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Zhifei Fan ,  Sungwoo Park ,  Akula Reddy ,  Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

IPC: H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04W72/12

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for performing rate matching when resources for a physical downlink shared channel (PDSCH) overlap with resources of a control resource set (CORESET) in which a physical downlink control channel (PDCCH) that scheduled the PDSCH. As used herein, rate matching generally refers to the process of repeating or puncturing bits on a transport channel.

公开(公告)号：US11546835B2

公开(公告)日：2023-01-03

申请号：US17343225

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Jing Sun ,  Xiaoxia Zhang ,  Ozcan Ozturk ,  Chih-Hao Liu ,  Tao Luo ,  Peter Gaal

IPC: H04W48/06 ,  H04L41/12 ,  H04W72/08

Abstract: Wireless communications systems and methods related to channel occupancy management for new radio side-link supporting star topology of user equipment devices are provided. In some aspects, a user equipment (UE) determines a communication resources pool including a channel occupancy ratio (CR) gap of each UE of a plurality of UEs in communication with the first UE, a CR gap of each UE representing a difference between a CR limit of that UE and a CR of that UE, The UE also can communicate, to a second UE of the plurality of UEs, a first CR command configured to allow the second UE to access a first portion of the communication resources pool. In some aspects, an amount of the first portion can be different from an amount of the CR gap of the second UE in the communication resources pool.

公开(公告)号：US11540306B2

公开(公告)日：2022-12-27

申请号：US17150846

申请日：2021-01-15

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Jing Sun ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Tao Luo

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device (WCD) may communicate, during a channel occupancy time (COT) associated with one or more resources, via a no listen before talk (no-LBT) channel access mode. The WCD may initiate, after the COT, a reduced COT associated with the one or more resources, wherein the WCD is configured to reduce channel occupancy during the reduced COT. Numerous other aspects are described.

公开(公告)号：US11540268B2

公开(公告)日：2022-12-27

申请号：US17172630

申请日：2021-02-10

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Jing Sun ,  Yan Zhou ,  Zhifei Fan ,  Wooseok Nam ,  Qingjiang Tian ,  Xiaoxia Zhang ,  Tao Luo

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

Abstract: A configuration for a single transport block spanning over multiple slots and having a noncontiguous time domain allocation. The apparatus configures DCI that schedules a plurality of PDSCH symbols or a plurality of PUSCH symbols with a single transport block that spans more than one slot and at least one gap between two adjacent PDSCH symbols or PUSCH symbols. Each of the plurality of PDSCH symbols or PUSCH symbols are contiguous and have a respective SLIV. The apparatus transmits the DCI to at least one UE.