公开(公告)号：US11664947B2

公开(公告)日：2023-05-30

申请号：US16001291

申请日：2018-06-06

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Jing Jiang ,  Jing Sun

IPC: H04L5/00 ,  H04J11/00 ,  H04B7/0452 ,  H04W72/04

CPC classification number: H04L5/0051 ,  H04B7/0452 ,  H04J11/00 ,  H04J2011/0006 ,  H04J2011/0009 ,  H04J2011/0013 ,  H04L5/0007 ,  H04L5/0092 ,  H04W72/042

Abstract: Various aspects described herein relate to techniques for using orthogonal demodulation reference signals (DMRSs) for downlink control channels in wireless communications systems. In an aspect, a method for a user equipment (UE) includes receiving one or more DMRSs over a multi-symbol downlink control channel. The method may further include identifying a time-first control channel element (CCE)-to-resource element group (REG) mapping for the multi-symbol downlink control channel, and identifying an orthogonal DMRS of the one or more DMRSs based on the time-first CCE-to-REG mapping, and decoding the multi-symbol downlink control channel based on at least the identified orthogonal DMRS.

公开(公告)号：US11664938B2

公开(公告)日：2023-05-30

申请号：US17338192

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Lik Hang Silas Fong ,  Piyush Gupta ,  Jing Sun ,  Junyi Li ,  Xiaoxia Zhang ,  Xiaojie Wang

IPC: H04L1/1867 ,  H04W92/18 ,  H04W72/23

CPC classification number: H04L1/1896 ,  H04W72/23 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a base station associated with the first UE and a second UE, a downlink control information activating a set of configured grant resources for transmissions from the second UE to the first UE. The UE may transmit, according to the downlink control information, a feedback message to the base station confirming receipt of the downlink control information.

公开(公告)号：US11664919B2

公开(公告)日：2023-05-30

申请号：US17301917

申请日：2021-04-19

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Taesang Yoo ,  Xiaoxia Zhang

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/26 ,  H04J13/14 ,  H04L27/00 ,  H04J13/00 ,  H04W24/02 ,  H04W40/24 ,  H04W74/00

CPC classification number: H04J11/0069 ,  H04J13/0062 ,  H04J13/14 ,  H04L5/0048 ,  H04L27/0006 ,  H04L27/261 ,  H04W24/02 ,  H04W40/244 ,  H04W74/006 ,  H04J11/00 ,  H04L5/001 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0053 ,  H04L27/2628

Abstract: A base station may determine a root for a sequence to be included in a signal to a UE. The base station may generate a generalized Chu sequence based on the root and scramble the generalized Chu sequence using a pseudorandom sequence that is common to a plurality of base stations. The base station may transmit the scrambled generalized Chu sequence to indicate the beginning of a downlink transmission. The UE may receive this scrambled generalized Chu sequence and determine if a beginning of a downlink transmission from a serving base station based on the received generalized Chu sequence and an expected generalized Chu sequence.

公开(公告)号：US11659465B2

公开(公告)日：2023-05-23

申请号：US16829973

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Xiaoxia Zhang ,  Tao Luo ,  Jing Sun

IPC: H04W36/22 ,  H04W16/14 ,  H04W74/08 ,  H04W36/00 ,  H04W36/08

CPC classification number: H04W36/22 ,  H04W16/14 ,  H04W36/0022 ,  H04W36/08 ,  H04W74/0808

Abstract: This disclosure provides systems, methods and apparatuses for channel load-based cell reselection procedures. In one aspect, a user equipment (UE) may identify a channel load and may perform a cell reselection procedure based on the channel load. For example, the UE may perform an intra-frequency cell reselection procedure, an inter-frequency cell reselection procedure, or an inter-radio access technology (RAT) cell reselection procedure.

公开(公告)号：US11653388B2

公开(公告)日：2023-05-16

申请号：US16742558

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04B17/318 ,  H04W72/0453

CPC classification number: H04W74/0833 ,  H04B17/318 ,  H04W72/0453

Abstract: Frequency division multiplex (FDM) random access configuration and selection is disclosed for new radio (NR) unlicensed (NR-U) operations. For idle mode user equipment (UEs), the network may configured multiple frequency bands for random access. The UE may then select different frequencies for random access when default frequencies experience interference. For connected mode UEs, the network may configured which of multiple configured frequency bands the connected UE may use for autonomous random access transmissions. The UE may then select any of the allowed frequency bands for autonomous random access. Contention-free random access resources may be configured on one or more of the multiple configured frequency bands. When contention-free resources are available, the UEs may initially attempt access of the contention-free resources on the default frequency band before attempting random access on other configured bands or the UE is provided a priority of bands for access by the network.

公开(公告)号：US11653341B2

公开(公告)日：2023-05-16

申请号：US17367583

申请日：2021-07-05

Applicant: QUALCOMM incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Tamer Kadous ,  Yongbin Wei

IPC: H04W72/04 ,  H04W72/0446 ,  H04W72/1268 ,  H04W74/08

CPC classification number: H04W72/0446 ,  H04W72/1268 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described that provide for frame-based initiator device operations. A wireless device may be operating within a frame-based equipment communications system, where a frame may include a channel occupancy time period and a minimum idle period. An initiating device may be configured to initiate autonomous uplink communications during the channel occupancy time period of its frame, while the device may not initiate communications during an idle period of its frame. In some cases, a frame-based equipment communications system may include more than one initiating device, where the idle periods for different initiating devices may occur at different times. In some cases, the initiating device may be configured to initiate communications during the idle period for another initiating device. This may allow the wireless system to decrease system overhead associated with a minimum idle period per frame.

公开(公告)号：US11653309B2

公开(公告)日：2023-05-16

申请号：US17209823

申请日：2021-03-23

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz Zewail ,  Xiaoxia Zhang ,  Jing Sun ,  Zhifei Fan

IPC: H04W72/02 ,  H04W52/14 ,  H04W52/18

CPC classification number: H04W52/146 ,  H04W52/18

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling which indicates a resource block indicating a number of reference signal tones and data tones in an uplink transmission. In some cases, the UE may determine a first transmission power for the reference signal tones, and a second transmission power for the data tones that is different from the first transmission power. In some other cases, the UE may identify a frequency allocation for the resource block which allocates a same frequency bandwidth for the reference signal tones and the data tones, and the UE may determine a same transmission power for the reference signal tones and the data tones based on the frequency allocation. Based on the determination of transmission powers, the UE may transmit the reference signal tones and the data tones to a base station.

公开(公告)号：US11647560B2

公开(公告)日：2023-05-09

申请号：US17362436

申请日：2021-06-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W76/30 ,  H04W72/04 ,  H04W76/11 ,  H04W76/27 ,  H04W72/0446

CPC classification number: H04W76/30 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/11 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communication are described. The examples described herein provide a procedure at a user equipment (UE) for determining whether to transmit radio resource control (RRC) configured uplink signals to a base station based on detected slot format indications (SFIs) and/or undetected SFIs in multiple control channels. In particular, a UE may identify multiple control channels configured to include SFIs from a base station, and, as described herein, the UE may determine whether to transmit RRC configured uplink signals in a set of symbols based on a configuration of the set of symbols (e.g., uplink, downlink, or flexible) determined based on detected SFIs and/or undetected SFIs in the multiple control channels. The UE may be able to determine whether to transmit RRC configured uplink signals in a set of symbols based on any combination of detected SFIs and undetected SFIs.

公开(公告)号：US11647500B2

公开(公告)日：2023-05-09

申请号：US17444257

申请日：2021-08-02

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Xiaoxia Zhang ,  Chih-Hao Liu ,  Jing Sun

IPC: H04W4/00 ,  H04W72/12 ,  H04W72/1263

CPC classification number: H04W72/1278 ,  H04W72/1263

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first sidelink user equipment (UE) may transmit, to a second sidelink UE via sidelink control information (SCI), a receiving (Rx) beam schedule indicating Rx beams associated with the first sidelink UE in a set of slots, wherein the Rx beam schedule indicates that the first sidelink UE is configured to tune to the Rx beams in the set of slots for possible sidelink receptions. The first sidelink UE may receive, from the second sidelink UE, a sidelink transmission using an Rx beam indicated in the Rx beam schedule. Numerous other aspects are described.

公开(公告)号：US11647486B2

公开(公告)日：2023-05-09

申请号：US17141699

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Yisheng Xue ,  Chih-Hao Liu ,  Xiaoxia Zhang ,  Jing Sun ,  Yongbin Wei

IPC: H04W72/04 ,  H04W72/044 ,  H04L5/00 ,  H04W72/00

CPC classification number: H04W72/044 ,  H04L5/0042 ,  H04W72/005 ,  H04W72/048 ,  H04W72/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that an availability condition is satisfied, wherein the availability condition relates to an availability of the UE for sidelink communication; identify future available information (FAI) that indicates at least one of a time domain availability of the UE for sidelink communication or a frequency domain availability of the UE for sidelink communication; and transmit the FAI based at least in part on determining that the availability condition is satisfied. Numerous other aspects are provided.