公开(公告)号：US11811530B2

公开(公告)日：2023-11-07

申请号：US18064691

申请日：2022-12-12

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04L25/02 ,  H04W72/0453 ,  H04W72/21

CPC classification number: H04L1/0069 ,  H04L5/0051 ,  H04L25/0226 ,  H04L27/2607 ,  H04W72/0453 ,  H04W72/21

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：US11799594B2

公开(公告)日：2023-10-24

申请号：US17353141

申请日：2021-06-21

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1812 ,  H04W72/1263 ,  H04L1/1867 ,  H04L1/1829

CPC classification number: H04L1/1819 ,  H04L1/1835 ,  H04L1/1896 ,  H04W72/1263

Abstract: Aspects of the present disclosure include methods, apparatuses, and computer readable media for receiving first downlink information, failing to decode a first portion of the first downlink information, transmitting, to a base station (BS), a first response including a negative acknowledgement (NACK) indicating a first decoding failure associated with the first portion of the first downlink information, receiving second downlink information, failing to decode a first portion of the second downlink information, detecting a hybrid automatic repeat request (HARQ) buffer unavailability, determining to discard NACK information associated with the NACK, resetting at least a portion of a HARQ buffer, in response to detecting the HARQ buffer unavailability, by discarding NACK information associated with the NACK, generating a reset NACK indicating the HARQ buffer reset and indicating the NACK information being discarded, and transmitting a second response including the reset NACK to the BS.

公开(公告)号：US11792810B2

公开(公告)日：2023-10-17

申请号：US17159408

申请日：2021-01-27

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/10 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04W72/23 ,  H04L5/0048

Abstract: In an aspect, a PDCCH and a PDSCH are transmitted by a BS to a UE, whereby the PDCCH includes a first DCI part and the PDSCH includes a second DCI part (e.g., a 2-part DCI). In an example, the BS and UE each determine at least one timing value associated with an effective receive time for the PDCCH based upon a reference symbol of the PDSCH.

公开(公告)号：US11785563B2

公开(公告)日：2023-10-10

申请号：US17370981

申请日：2021-07-08

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Tao Luo ,  Xiaoxia Zhang ,  Junyi Li

IPC: H04W56/00 ,  H04W16/28 ,  H04W72/1263 ,  H04W72/0453 ,  H04W24/08 ,  H04W72/23

CPC classification number: H04W56/001 ,  H04W16/28 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/1263 ,  H04W72/23

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a mapping between a set of synchronization signal block resources and a set of operating frequencies within a frequency band. The UE may identify a parameter of a synchronization signal block based on an operating frequency of the set of operating frequencies for conveying the synchronization signal block and a direction of a beam for conveying the synchronization signal block. The parameter may include an index of the synchronization signal block. The UE may monitor for the synchronization signal block based on the identified parameter.

公开(公告)号：US11774541B2

公开(公告)日：2023-10-03

申请号：US17489547

申请日：2021-09-29

Applicant: QUALCOMM Incorporated

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

IPC: G01S5/00 ,  H04L5/00 ,  H04W24/10 ,  H04W64/00

CPC classification number: G01S5/0036 ,  H04L5/0051 ,  H04W24/10 ,  H04W64/006

Abstract: Positioning of one or more user equipments (UEs) is performed using broadcast common sounding reference signals (SRS) resources for positioning. The common SRS that is broadcast by a UE is received and measured by one or more base stations and one or more other UEs. The other UEs may have known positions and may server as anchor nodes for positioning. The other UEs may have known positions and may serve as a positioning (anchor) node or may have unknown positions and may be jointly positioned with the target UE. During joint positioning, each of the other UEs may similarly broadcast a common set of SRS that is received and measured by the base stations and other UEs for positioning. An angular measurement of the SRS broadcast by one or more UEs may be measured and used to resolve mirror symmetry in positioning solutions.

公开(公告)号：US20230280454A1

公开(公告)日：2023-09-07

申请号：US18040965

申请日：2021-09-10

Applicant: QUALCOMM INCORPORATED

Inventor： Marwen Zorgui ,  Srinivas Yerramalli ,  Rajat Prakash ,  Xiaoxia Zhang

IPC: G01S13/06 ,  H04W64/00 ,  G01S13/87

CPC classification number: G01S13/06 ,  G01S13/878 ,  H04W64/003

Abstract: Wireless communications network architecture options for cooperative sensing and positioning. A sensing management function (SnMF) may be deployed as a network entity within the core network that supports, manages, analyzes, etc., the sensing output(s) of nodes of a wireless network. The SnMF may obtain radio frequency (RF) signal metrics from wireless nodes of a radio access network (RAN), such as base station(s), user equipment (UE), vehicle-based UE(s), wireless nodes deployed within a factory setting, and the like. The RF signal metrics may correspond to, or otherwise be associated with, reflections of RF signal transmissions off of objects. The SnMF may process the RF signal metrics to identify or otherwise determine the various properties of the objects. An application layer entity, such as an application function (AF), may also be implemented within the core network that issues sensing queries and receives reports about the sensing procedures from the SnMF.

公开(公告)号：US11751073B2

公开(公告)日：2023-09-05

申请号：US17742317

申请日：2022-05-11

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/28 ,  H04W72/541 ,  H04W72/044 ,  H04W74/08

CPC classification number: H04W16/28 ,  H04W72/046 ,  H04W72/541 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, wireless devices operating in an unlicensed radio frequency spectrum band may perform directional listen-before-talk (LBT) procedures to gain access to a channel. In a beam-shrinking scheme for directional LBT, a wireless device may start an LBT procedure using a first beam (e.g., a wide beam). If the clear channel assessment (CCA) fails for the first beam (e.g., due to directional interference), the device may switch the LBT procedure to a second beam (e.g., a narrower beam). Depending on the direction of the interference source, the second beam may result in a successful LBT procedure. In a beam sweeping scheme for directional LBT, a wireless device may perform concurrent LBT over multiple narrow beams. If any beam of the set of beams detects frequent or continuous interference, the device may drop that beam from the concurrent LBT procedure.

公开(公告)号：US11743897B2

公开(公告)日：2023-08-29

申请号：US14503584

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Wanshi Chen ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tingfang Ji ,  Hao Xu ,  Peter Gaal

IPC: H04W72/21 ,  H04L5/00 ,  H04L27/00 ,  H04B7/0452 ,  H04W74/08 ,  H04B7/06 ,  H04W16/14 ,  H04B7/0456

CPC classification number: H04W72/21 ,  H04B7/0452 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0073 ,  H04L27/0006 ,  H04W74/0833 ,  H04B7/0456 ,  H04B7/0604 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04W16/14

Abstract: Techniques are described for wireless communication. An orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band. An OFDMA waveform is generated based on the identified OFDMA configuration. The OFDMA waveform is communicated in a signal in the unlicensed radio frequency spectrum band. A virtual cell identifier of a first base station may be associated with transmissions between the first base station and a first user equipment (UE). A set of common resource blocks may be identified for transmission of a demodulation reference signal (DM-RS) between the first base station and the first UE. A configuration of an uplink channel may be dynamically selected for uplink communications in an unlicensed radio frequency spectrum band. A waveform may be generated based on the selected configuration. The waveform may be communicated in a signal in the unlicensed radio frequency spectrum band.

公开(公告)号：US11742990B2

公开(公告)日：2023-08-29

申请号：US17035424

申请日：2020-09-28

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/1812 ,  H04B17/336 ,  H04L1/1829

CPC classification number: H04L1/1812 ,  H04B17/336 ,  H04L1/1835

Abstract: The present disclosure discloses apparatuses, systems, and methods of wireless communication that use an adaptive hybrid automatic repeat request (HARQ) procedure and a multi-threaded HARQ procedure for improving HARQ buffer utilization and management. A user equipment (UE) can transmit a reset NACK to reduce the amount of HARQ buffers needed for concurrent HARQ processes. A base station can transmit different redundancy data in a HARQ retransmission depending on the types of NACK the UE transmitted. The base station can communicate with the UE using multiple light HARQ processes or threads that use less HARQ buffers than a typical HARQ procedure. Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US11729646B2

公开(公告)日：2023-08-15

申请号：US17138170

申请日：2020-12-30

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Hirzallah ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang ,  Vasanthan Raghavan ,  Tao Luo

IPC: H04W24/08 ,  H04W72/044 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04W24/08 ,  H04B7/0626 ,  H04L5/0048 ,  H04W72/046

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a base station may transmit a set of reference signals spanning a channel to a user equipment (UE), where each of the reference signals is associated with one of a set of transmit beams. The UE may measure a signal quality of each of the set of reference signals. In some cases, each measured signal quality may correspond to one of a set of subbands of the channel and one of the set of transmit beams. The UE may then transmit an indication of at least one signal quality associated with one of the set of subbands and one of the set of transmit beams. In some cases, the UE may indicate the at least one signal quality according to a configuration that may be indicated by the base station or selected by the UE.