公开(公告)号：US11843558B2

公开(公告)日：2023-12-12

申请号：US16473917

申请日：2018-01-08

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Chao Wei ,  Wanshi Chen ,  Pavan Kumar Vitthaladevuni

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0613 ,  H04L5/0091

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for transmitting multiplexed sounding reference signal (SRS) ports in communications systems operating according to new radio (NR) technologies. An exemplary method includes obtaining an indication of a technique to use in transmitting sounding reference signals (SRS) via five or more antenna ports in one slot and transmitting the SRS via the five or more antenna ports according to the indicated technique.

公开(公告)号：US20230354310A1

公开(公告)日：2023-11-02

申请号：US17733747

申请日：2022-04-29

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Peter Gaal ,  Yu Zhang ,  Hyojin Lee ,  Muhammad Sayed Khairy Abdelghaffar

IPC: H04W72/12 ,  H04L5/00

CPC classification number: H04W72/1268 ,  H04W72/1289 ,  H04L5/0051

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may receive signaling from a network entity configuring a sounding reference signal resource set comprising a first sounding reference signal resource associated with a first subset of a total number of sounding reference signal ports and a second sounding reference signal resource associated with a second subset of the total number of sounding reference signal ports supported by the UE. The UE may transmit sounding reference signals via at least one sounding reference signal resource of the plurality of sounding reference signal resources based on the signaling configuring a sounding reference signal resource set. The UE may receive a downlink control information message comprising an indication of a physical uplink shared channel transmission based on at least a subset of the total number of sounding reference signal ports. The UE may transmit the physical uplink shared channel transmission.

公开(公告)号：US11791878B2

公开(公告)日：2023-10-17

申请号：US16625591

申请日：2018-06-20

Applicant: Juan Montojo ,  Alexei Yurievitch Gorokhov ,  Peter Gaal ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hari Sankar ,  Alexandros Manolakos ,  Qualcomm Incorporated

Inventor： Juan Montojo ,  Alexei Yurievitch Gorokhov ,  Peter Gaal ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Hari Sankar ,  Alexandros Manolakos

IPC: H04B7/0413 ,  H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0413 ,  H04B7/0632 ,  H04B7/0639

Abstract: Techniques are discussed herein identify transmission strategies and to communicate those identified transmission strategies in a transparent communication environment. In some examples, a user equipment (UE) may identify a new transmission strategy for a downlink channel different from a current transmission strategy for the down link channel. The UE may transmit a channel state information (CSI) message that includes an indication of the new transmission strategy identified by the UE. In some examples, a base station may identify the new transmission strategy for the downlink channel. The base station may transmit a codebook subset restriction (CSR) indicator that includes an indication of the new transmission strategy identified by the base station. In some examples, the UE may modify its feedback strategy based on the new transmission strategy.

公开(公告)号：US20230261722A1

公开(公告)日：2023-08-17

申请号：US18003099

申请日：2020-08-19

Applicant: QUALCOMM INCORPORATED

Inventor： Wei Xi ,  Yu Zhang ,  Hao Xu ,  Min Huang ,  Chao Wei ,  Changlong Xu ,  Liangming Wu ,  Chenxi Hao ,  Qiaoyu Li ,  Kangqi Liu ,  Jing Dai ,  Rui Hu ,  Jian Li

IPC: H04B7/06 ,  H04B7/08 ,  H01Q3/26

CPC classification number: H04B7/06956 ,  H04B7/086 ,  H01Q3/26

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a device may select antenna elements from a planar array to transmit or receive an orbital angular momentum (OAM) beam. The device may determine a first area (e.g., a first ring area) based on an angular direction over which the device can communicate an OAM beam with a second device and may determine a second area (e.g., a second ring area) on the planar array based on projecting the first area on the planar array. The device may select a set of antenna elements from the planar array that are located within the second area. The device may determine a complex-valued weight for each antenna element of the selected set of antenna elements and may transmit or receive an OAM beam to or from the second device via the set of antenna elements according to the angular direction.

公开(公告)号：US11716184B2

公开(公告)日：2023-08-01

申请号：US16466697

申请日：2017-12-02

Applicant: QUALCOMM INCORPORATED

Inventor： Yu Zhang ,  Alexandros Manolakos ,  Tao Luo ,  June Namgoong

IPC: H04L5/00 ,  H04L1/18

CPC classification number: H04L5/005 ,  H04L1/18 ,  H04L5/0007

Abstract: Certain aspects of the present disclosure provide techniques for transmitting and processing channel state information (CSI) reference signals (CSI-RS). An exemplary method includes determining a configuration of channel state information reference signals (CSI-RSs), wherein the configuration indicates a set of resource elements (REs) to be used for CSI-RSs and a first mapping of CSI-RS ports to the set of REs; sending an indication of the configuration of the CSI-RSs; and transmitting the CSI-RSs according to the determined configuration.

公开(公告)号：US20230224007A1

公开(公告)日：2023-07-13

申请号：US18173053

申请日：2023-02-22

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Wanshi Chen ,  Yu Zhang ,  Gabi Sarkis

IPC: H04B7/06 ,  H04B7/0456 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04B7/0486 ,  H04L1/0003 ,  H04B7/063 ,  H04L1/0061 ,  H04B7/0617

Abstract: Techniques are described herein for determining a priority ranking for channel state information (CSI) reports based at least in part on a reliability parameter, a latency parameter, or both of resources allocated to a user equipment (UE). In some wireless communications systems, ultra reliable low latency communication (URLLC) services may be interspersed with enhanced mobile broadband (eMBB) services. The UE may perform a CSI report prioritization procedure to account for reliability parameters, latency parameters or both. In some cases, CSI reporting for resources associated URLLC services may receive higher priority than CSI reporting for eMBB services. The UE may be configured to determine reliability parameters and/or latency parameters based on signaling received from the network or from determining changes to one or more configurations of the UE. In some cases, the priority ranking of the CSI report may be based at least in part on a slot set identifier.

公开(公告)号：US20230216627A1

公开(公告)日：2023-07-06

申请号：US17996755

申请日：2020-06-28

Applicant: Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  QUALCOMM Incorporated

Inventor： Runxin Wang ,  Muhammad Sayed Khairy Abdelghaffar ,  Yu Zhang ,  Krishna Kiran Mukkavilli ,  Hwan Joon Kwon

IPC: H04L5/00 ,  H04W24/10

CPC classification number: H04L5/0035 ,  H04L5/0048 ,  H04L5/0091 ,  H04W24/10

Abstract: Aspects of the disclosure relate to radio access networks with a capability to dynamically reconfigure a number of transmission-reception points (TRPs) in a single-frequency network (SFN) based on channel measurements. In one example, a mobile device receives a configuration message including a plurality of transmission configuration indicator (TCI) states, and potentially further including an indication identifying one or more of the TCI states as main TCI states. The message may further include an indication that it includes the plurality of TCI states. The UE receives a downlink traffic channel and demodulates the traffic channel based on only a subset of the TCI states (e.g., the main TCI state (s)). The UE further measures one or more channel parameters corresponding to each TCI state of the plurality of TCI states, and transmits a channel state information report based on the channel parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20230171062A1

公开(公告)日：2023-06-01

申请号：US17905630

申请日：2020-03-03

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Chenxi HAO ,  Yu Zhang ,  Xiaoxia Zhang ,  Hao Xu

IPC: H04L5/00 ,  H04B7/06

CPC classification number: H04L5/0051 ,  H04B7/0695 ,  H04L5/0085 ,  H04L5/0094 ,  H04B7/0626 ,  H04L5/0057

Abstract: Channel state information-reference signal (CSI-RS) resources are disclosed with multiple transmission configuration indication (TCI) states. Example aspects of the present disclosure provide for indications that a given CSI-RS resource is associated with multiple TCI states within various configuration control signaling, depending on whether the CSI-RS is periodic, semi-persistent, or aperiodic. Additionally, where any trigger state corresponds to a CSI-RS resource set in which one or more CSI-RS resources are associated with multiple TCI states, one or more quasi-co-location (QCL) assumptions of the downlink transmission may also be applied by a user equipment (UE) to reception of the CSI-RS resources, where the scheduling offset is less than the threshold beam switch timing reported by the UE.

公开(公告)号：US20230171032A1

公开(公告)日：2023-06-01

申请号：US17995394

申请日：2020-04-03

Applicant: QUALCOMM Incorporated

Inventor： Kangqi Liu ,  Changlong Xu ,  Jian Li ,  Liangming Wu ,  Yu Zhang ,  Hao Xu

IPC: H04L1/08 ,  H04L5/00

CPC classification number: H04L1/08 ,  H04L5/0053

Abstract: Network coding in automatic receipt request (ARQ) functionality is disclosed. A compatible transmitter configures a new transmission period, in which the set of data for transmission is transmitted, and a retransmission period, after the new transmission period, in which a number of network coded data is retransmitted based on the acknowledgement feedback received from the receivers receiving the transmitted set of data. The acknowledgement feedback identifies one or more data requested for retransmission by one or more of the receivers. The transmitter determines a number of network coded data that could be transmitted to accommodate each of the requesting receivers and the data requested by such receivers for retransmission. These network coded data would then be retransmitted by the transmitter during the retransmission period.

公开(公告)号：US11652516B2

公开(公告)日：2023-05-16

申请号：US16673795

申请日：2019-11-04

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Yu Zhang ,  Jilei Hou

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W72/044

CPC classification number: H04B7/0421 ,  H04B7/0482 ,  H04B7/065 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0051 ,  H04L5/0057 ,  H04W72/042 ,  H04W72/044

Abstract: In an aspect, a method of wireless communication includes transmitting first reference signals from a base station using a first set of antenna ports, and receiving first feedback information at the base station from a user equipment (UE). The first feedback information may be associated with the first reference signals. The method includes configuring a first precoder based on the first feedback information, and transmitting second reference signals to the UE based on the configuration of the first precoder. The method includes receiving second feedback information at the base station from the UE. The second feedback information may be associated with the second reference signals. The method includes configuring a second precoder based on the second feedback information.