公开(公告)号：US12133259B2

公开(公告)日：2024-10-29

申请号：US17512480

申请日：2021-10-27

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Shailesh Patil

IPC: H04W74/08 ,  H04L5/00 ,  H04W4/40 ,  H04W4/70 ,  H04W16/28 ,  H04W72/20 ,  H04W74/0816 ,  H04W88/02 ,  H04W72/02 ,  H04W84/00

CPC classification number: H04W74/0816 ,  H04L5/0053 ,  H04W4/40 ,  H04W4/70 ,  H04W16/28 ,  H04W72/20 ,  H04L5/001 ,  H04W72/02 ,  H04W84/005

Abstract: Methods, systems, and devices for wireless communication are described. A 5G device may decode a control channel transmission of a safety message in a vehicle-to-everything system during a first portion of a time period. The 5G device may identify, based at least in part on the decoding, a pool of resource blocks (RBs) that are available for the time period. The 5G device may select a subset of RBs from the available pool of RBs for a transmission during a second portion of the time period.

公开(公告)号：US11582749B2

公开(公告)日：2023-02-14

申请号：US14789301

申请日：2015-07-01

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Tao Luo ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Madhavan Srinivasan Vajapeyam ,  Wanshi Chen

IPC: H04W72/04 ,  H04W48/16 ,  H04L5/00 ,  H04W48/20 ,  H04W48/12

Abstract: Techniques for transmitting and receiving wireless communications over an unlicensed radio frequency spectrum band are disclosed, including techniques for transmitting and receiving service information blocks over the unlicensed radio frequency spectrum band, techniques for gaining access to the unlicensed radio frequency spectrum band by performing extended clear channel assessments (eCCAs), techniques for transmitting and receiving synchronization signals and reference signals over the unlicensed radio frequency spectrum band, techniques for communicating locations of reference signals, and techniques for communicating availability of certain resources to be combined across multiple different transmissions.

公开(公告)号：US11522661B2

公开(公告)日：2022-12-06

申请号：US16843797

申请日：2020-04-08

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Shuanshuan Wu ,  Sudhir Kumar Baghel ,  Kapil Gulati ,  Shailesh Patil

IPC: H04L5/00 ,  H04W4/40 ,  H04W64/00 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications (e.g., vehicle to everything systems) are described relating to an adaptive design of demodulation reference signals (DMRS) density based on user equipment (UE) velocity. A UE may send assistance information to a transmitting UE to help identify a DMRS pattern based on the relative speed between the two UEs. Also, the transmitter may determine the adaptive DMRS pattern based on its speed without information of the receiver's speed. The transmitter may indicate the adaptive DMRS pattern in control information to the receiver. A base station may receive assistance information, and the base station may determine the adaptive DMRS pattern to be used by the transmitting UE based on the received assistance information and then indicate the adaptive DMRS pattern to the transmitting UE. A UE may determine an adaptive DMRS pattern to use based on feedback from the receiving UE.

公开(公告)号：US11470664B2

公开(公告)日：2022-10-11

申请号：US16866788

申请日：2020-05-05

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Peter Gaal ,  Tao Luo ,  Tingfang Ji ,  Gavin Bernard Horn ,  Wanshi Chen ,  Aleksandar Damnjanovic

IPC: H04L1/00 ,  H04L27/26 ,  H04L5/14 ,  H04L27/00 ,  H04W76/15 ,  H04L5/00 ,  H04W48/10 ,  H04W72/08 ,  H04W74/00 ,  H04L1/06 ,  H04W28/02 ,  H04W74/08 ,  H04W24/02 ,  H04W28/08 ,  H04W28/16 ,  H04W72/04 ,  H04W56/00 ,  H04W74/04 ,  H04W16/14 ,  H04W88/06 ,  H04W88/08 ,  H04W84/12 ,  H04J11/00 ,  H04W88/02

Abstract: Methods and apparatuses are described for wireless communications. A first method includes transmitting a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal to a wireless node in a licensed spectrum, and transmitting, concurrently with the transmission of the first OFDMA communications signal, a second OFDMA communications signal to the wireless node in an unlicensed spectrum. A second method includes receiving a first Orthogonal Frequency-Division Multiple Access (OFDMA) communications signal from a wireless node in a licensed spectrum, and receiving, concurrently with the reception of the first OFDMA communications signal, a second OFDMA communication signal from the wireless node in an unlicensed spectrum. A third method includes generating a periodic gating interval for a cellular downlink in an unlicensed spectrum, and synchronizing at least one boundary of the periodic gating interval with at least one boundary of a periodic frame structure associated with a primary component carrier of the cellular downlink.

公开(公告)号：US11463228B2

公开(公告)日：2022-10-04

申请号：US16289107

申请日：2019-02-28

Applicant: QUALCOMM Incorporated

Inventor： Navid Abedini ,  Sundar Subramanian ,  Junyi Li ,  Durga Prasad Malladi ,  Karl Georg Hampel ,  Muhammad Nazmul Islam

IPC: H04L5/16 ,  H04W72/12 ,  H04L5/14 ,  H04W52/16 ,  H04J3/16 ,  H04B7/0404 ,  H04B7/06 ,  H04B7/0408 ,  H04W52/34 ,  H04L5/00 ,  H04W52/24

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify a set of power configurations for a plurality of communications with at least one target device. The set of power configurations may be based at least in part on a type of signal, a type of channel, a parameter of the wireless device, a parameter of the target device, or a combination thereof. The wireless device may then determine a duplexing mode for the plurality of communications based at least in part on the set of power configurations. The duplexing mode may be, for example, a full duplex mode or a half-duplex mode. The wireless device may then transmit the plurality of communications to and/or receive the plurality of communications from the at least one target device according to the set of power configurations and the selected duplexing mode.

公开(公告)号：US11153898B2

公开(公告)日：2021-10-19

申请号：US16201685

申请日：2018-11-27

Applicant: QUALCOMM Incorporated

Inventor： Arumugam Chendamarai Kannan ,  Taesang Yoo ,  Siddhartha Mallik ,  Jelena Damnjanovic ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W72/12 ,  H04L5/14 ,  H04L12/807 ,  H04W28/20 ,  H04W72/04 ,  H04W88/02

Abstract: Methods and apparatuses for managing uplink scheduling for one or more user equipment served by a network entity in a wireless communications system are presented. For instance, an example method is presented that includes generating, by the network entity, an uplink bandwidth allocation map, the uplink bandwidth allocation map defining an uplink bandwidth allocation for at least one of the one or more user equipment for at least one of a plurality of uplink transmission window lengths. In addition, the example method includes transmitting the uplink bandwidth allocation map to at least one of the one or more user equipment.

公开(公告)号：US11075732B2

公开(公告)日：2021-07-27

申请号：US16544675

申请日：2019-08-19

Applicant: QUALCOMM incorporated

Inventor： Jing Sun ,  Tao Luo ,  Hao Xu ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04L27/26 ,  H04W76/27 ,  H04B17/318 ,  H04W52/32

Abstract: Techniques are provided for reference signal transmissions and transmit power ratio determination in non-orthogonal transmissions. A traffic-to-pilot power ratio (TPR) may be determined for a base layer for a non-orthogonal channel and another TPR may be determined for an enhancement layer for the non-orthogonal channel. Reference signal transmissions may be transmitted by a base station at a reference signal transmission power, and a user equipment (UE) may estimate channel quality for the base layer or the enhancement layer based at least in part on an energy level of the received reference signal and one or more of the first TPR or the second TPR. A base station may transmit TPR signaling that may indicate one or more TPR values for one or both of the base layer or enhancement layer.

公开(公告)号：US11026225B2

公开(公告)日：2021-06-01

申请号：US16449826

申请日：2019-06-24

Applicant: QUALCOMM Incorporated

Inventor： Chih-Ping Li ,  Jing Jiang ,  Wanshi Chen ,  Heechoon Lee ,  Durga Prasad Malladi

IPC: H04W72/04 ,  H04W72/06 ,  H04W76/27

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive multiple physical downlink control channels (PDCCHs) in one or more slots along with data traffic, where one of the PDCCHs includes a downlink preemption indication (DLPI) signifying that a portion of the data traffic was preempted. In some cases, the UE may monitor, within a same slot, for both the data traffic and an additional PDCCH carrying the DLPI and then transmit, within the same slot, a feedback message based on attempting to decode the data traffic, taking into account the DLPI. Additionally, the UE may receive the data traffic via a first service, where the DLPI indicates a second service preempts the first service. In some cases, the DLPI may be transmitted based on the UE being capable of processing the data traffic and transmitting the feedback message within the same slot.

公开(公告)号：US10772092B2

公开(公告)日：2020-09-08

申请号：US14532714

申请日：2014-11-04

Applicant: QUALCOMM Incorporated

Inventor： Taesang Yoo ,  Siddhartha Mallik ,  Arumugam Chendamarai Kannan ,  Jelena Damnjanovic ,  Madhavan Srinivasan Vajapeyam ,  Jun Wang ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L5/14 ,  H04L27/26 ,  H04L12/26 ,  H04W16/32 ,  H04W74/08 ,  H04J11/00

Abstract: Methods, systems, and devices are described for hierarchical communications and low latency support within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing. In some examples symbols of different duration may be multiplexed such that they different symbol durations coexist.

公开(公告)号：US10771273B2

公开(公告)日：2020-09-08

申请号：US15439864

申请日：2017-02-22

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Yongbin Wei ,  Peter Gaal ,  Hao Xu ,  Taesang Yoo ,  Siddhartha Mallik ,  Makesh Pravin John Wilson ,  Naga Bhushan ,  Durga Prasad Malladi ,  Tingfang Ji ,  Gavin Bernard Horn ,  Alexei Y. Gorokhov ,  Avneesh Agrawal

IPC: H04L12/18 ,  H04W16/14 ,  H04B7/06 ,  H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H04B17/336 ,  H04B7/0452 ,  H04B7/0413

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE that acquires information regarding an interfering non-serving cell and uses the information to improve decoding of serving cell signals. The method includes receiving, from a serving evolved Node B (eNB), information that includes one or more transmission characteristics of at least one non-serving cell and performing at least one of interference cancellation, demodulation, or provides an improved channel quality indicator (CQI) based on the received information.