公开(公告)号：US11700090B2

公开(公告)日：2023-07-11

申请号：US17303660

申请日：2021-06-03

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tamer Kadous ,  Yongbin Wei

IPC: H04L5/00 ,  H04W16/14 ,  H04W74/08 ,  H04W74/00 ,  H04W48/08 ,  H04W72/23

CPC classification number: H04L5/0012 ,  H04L5/0094 ,  H04W16/14 ,  H04W48/08 ,  H04W72/23 ,  H04W74/006 ,  H04W74/0808

Abstract: Wireless communications systems and methods related to providing frequency diversity for communications in an unlicensed spectrum are provided. A first wireless communication device communicates, with a second wireless communication device, an opportunistic frequency-switching configuration for a first frequency band and a second frequency band. The first frequency band and the second frequency band are shared by a first network operating entity and a second network operating entity. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in a first frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device switches from the first frequency band to a second frequency band based on the opportunistic frequency-switching configuration. The first wireless communication device communicates, with the second wireless communication device after the switching, a second communication signal in the second frequency band based on the opportunistic frequency-switching configuration.

公开(公告)号：US11695512B2

公开(公告)日：2023-07-04

申请号：US17185543

申请日：2021-02-25

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo ,  Qiang Wu ,  Zhifei Fan ,  Arumugam Chendamarai Kannan ,  Sungwoo Park ,  Wooseok Nam

IPC: H04L1/1607 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/23 ,  H04L1/12

CPC classification number: H04L1/1664 ,  H04L1/1812 ,  H04W72/0446 ,  H04W72/23 ,  H04L2001/125

Abstract: Certain aspects may be implemented in a method for wireless communication. The method generally includes determining a counter downlink assignment index (cDAI) to be included in each of a plurality of downlink control information (DCI), each of a first subset of the plurality of DCI being on a control channel, and each of a second subset of the plurality of DCI being on a data channel, each of the first subset of the plurality of DCI scheduling one of the data channels, and wherein each of the control channels and the data channels is on a cell of a plurality of cells, the determination of the cDAIs being based on order of the cell, with respect to the plurality of cells, on which each of the cDAIs is to be transmitted; generating and outputting for transmission the control channels and data channels in accordance with the determination.

公开(公告)号：US11683127B2

公开(公告)日：2023-06-20

申请号：US17115550

申请日：2020-12-08

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1607 ,  H04L5/00 ,  H04L1/00 ,  H04W72/23

CPC classification number: H04L1/1664 ,  H04L1/0003 ,  H04L5/001 ,  H04L5/0055 ,  H04W72/23

Abstract: Certain aspects of the present disclosure provide techniques for communication of downlink control information (DCI) piggybacked on a physical downlink shared channel (PDSCH) configured using semi persistent scheduling (SPS). A method that may be performed by a user equipment (UE) includes receiving a message having a configuration for semi persistent scheduling (SPS) of data channels, receiving an indication associated with at least one first downlink control information (DCI) for transmission in at least one of the data channels, and monitoring for the data channels in accordance with the configuration for SPS.

公开(公告)号：US11671844B2

公开(公告)日：2023-06-06

申请号：US17530355

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Jing Sun ,  Xiaoxia Zhang

IPC: H04W4/00 ,  H04W16/14 ,  H04W74/08 ,  H04L5/00 ,  H04L1/1607 ,  H04W72/21

CPC classification number: H04W16/14 ,  H04L1/1671 ,  H04L5/0023 ,  H04W72/21 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) may transmit a message to a base station (e.g., a NodeB, an eNodeB (eNB), a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB)) in wireless communications with the UE. The message may include a UE capability to append a preamble waveform to an uplink transmission to the base station. In some examples, a preamble waveform may include a Wi-Fi preamble or a new radio unlicensed (NR-U) preamble. Based on the UE capability, the base station may determine and transmit a preamble configuration to the UE, which the UE may use to generate and append a preamble waveform to another message for an uplink transmission to the base station.

公开(公告)号：US11659593B2

公开(公告)日：2023-05-23

申请号：US17653190

申请日：2022-03-02

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Xiaoxia Zhang ,  Jing Sun ,  Seyed Ali Akbar Fakoorian ,  Arumugam Chendamarai Kannan ,  Kapil Bhattad

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/0446 ,  H04L5/00

CPC classification number: H04W74/0808 ,  H04L5/0055 ,  H04W16/14 ,  H04W72/0446

Abstract: Various procedures associated with autonomous uplink (AUL) are disclosed. In order to address the mismatch between listen before talk (LBT) and AUL bandwidth a fractional sensing channel is defined less than 20 MHz. Accordingly, a user equipment (UE) may use the fractional sensing channel to perform LBT only on the resources allocated for AUL. Contention window update may further be modified for transmissions spanning multiple transmission opportunities (TxOPs). A contention window update may occur over all transmission channels considering full acknowledgement information of each TxOP, a percentage of acknowledgement information weighted on the number of channels, a percentage of acknowledgement information weighted on the ratio of resources on each channel, or by selecting a primary channel of the multiple channels for the contention window update. In repetition scenarios, the reference transmission for contention window updates may be selected depending on whether all repetitions are within one or multiple TxOPs.

公开(公告)号：US11641640B2

公开(公告)日：2023-05-02

申请号：US17387844

申请日：2021-07-28

Applicant: QUALCOMM Incorporated

Inventor： Marwen Zorgui ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Piyush Gupta ,  Rajat Prakash ,  Junyi Li ,  Xiaojie Wang ,  Mohammad Tarek Fahim

IPC: H04W72/02 ,  H04L5/00 ,  H04W24/10 ,  H04W72/51 ,  H04W92/18

Abstract: Techniques for location determination of user equipment (UE) are provided. In an aspect, a position estimation entity (e.g., UE, gNB, LMF, etc.) identifies a pool of UEs for a SL-assisted position estimation procedure of a set of target UEs. SL SRS-Ps are communicated (e.g., transmitted and measured) between the pool of UEs (e.g., for relative SL ranging). UL SRS-Ps are communicated by at least some of the UEs in the pool of UEs. The position estimation entity obtains measurement data for both the SL SRS-P and UL-SRS-P communications. The position estimation entity determines a position estimate for each UE in the set of UEs based on the measurement information.

公开(公告)号：US11622380B2

公开(公告)日：2023-04-04

申请号：US17248451

申请日：2021-01-25

Applicant: QUALCOMM INCORPORATED

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Xiaoxia Zhang ,  Srinivas Yerramalli ,  Jing Sun ,  Tao Luo

IPC: H04W74/04 ,  H04W72/04

Abstract: Methods related to wireless communications systems and medium access in a radio frequency band of a shared spectrum are provided. A device contends for a first reserved time interlace including a plurality of channel occupancy times (COTs). The device transmits a first communication signal in a first COT of the plurality of COTs in response to winning the first reserved time interlace. The device transmits a second communication signal in a second COT of the plurality of COTs, the second COT spaced in time from the first COT, in response to winning the first reserved time interlace.

公开(公告)号：US11617192B2

公开(公告)日：2023-03-28

申请号：US17035355

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Vinay Chande ,  Tao Luo ,  Xiaoxia Zhang ,  Srinivas Yerramalli

IPC: H04W56/00 ,  H04W72/1273 ,  H04W72/044 ,  H04W88/14 ,  H04W76/27 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/08 ,  H04L1/00 ,  H04B7/0456 ,  H04L5/00 ,  H04W76/11

Abstract: In a particular implementation, a method includes receiving, at a first base station from a second base station via a backhaul communication, a scheduling message indicating one or more beams of the second base station that are scheduled for use in upcoming transmissions. The second base station is a neighboring base station of the first base station. The method further includes transmitting, from the first base station to a user equipment (UE), the scheduling message.

公开(公告)号：US20230091628A1

公开(公告)日：2023-03-23

申请号：US17481663

申请日：2021-09-22

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Yucheng Dai ,  Tao Luo ,  Jing Sun ,  Junyi Li ,  Peter Gaal ,  Sony Akkarakaran ,  Juan Montojo ,  Srinivas Yerramalli

IPC: H04W72/04 ,  H04L5/00 ,  G01S5/00 ,  H04W72/12 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify one or more sidelink positioning reference signal burst patterns identifying one or more bursts of sidelink positioning reference signals that are to be transmitted by either the UE or by other sidelink UEs. The UE may schedule transmission of a sidelink data message to occur during a same time period that includes the one or more bursts of sidelink positioning reference signals. The UE may transmit the sidelink data message via first resource elements that are different from second resource elements on which the one or more bursts of sidelink positioning reference signals are transmitted.

公开(公告)号：US11601889B2

公开(公告)日：2023-03-07

申请号：US16565333

申请日：2019-09-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Seyed Ali Akbar Fakoorian ,  Xiaoxia Zhang ,  Mostafa Khoshnevisan ,  Chih-Hao Liu

IPC: H04W52/14 ,  H04W72/044 ,  H04W24/10 ,  H04W72/04 ,  H04W52/24 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described for uplink power control. A user equipment (UE) in communication with a base station may select a power control configuration for low latency or high reliability communications or semi-persistently scheduled communications. In some cases, a power control configuration may correspond to a reception point in a multi-reception-point environment. In some cases, the power control configuration may indicate a default transmit power for uplink communications. In some cases, a UE may perform, at the physical layer, measurements on a signal received from the base station and use this information to determine or select a transmit power for uplink communications. Selecting the low latency power control configuration may include selecting a set of transmit powers or a step size for transmit power adjustments specific to low latency or high reliability communications or semi-persistently scheduled communications.