公开(公告)号：US20170163433A1

公开(公告)日：2017-06-08

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 ,  H04W72/08 ,  H04B7/0452 ,  H04B7/06 ,  H04W16/14 ,  H04L5/00

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.

公开(公告)号：US20170127442A1

公开(公告)日：2017-05-04

申请号：US15280660

申请日：2016-09-29

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Taesang YOO ,  Tao LUO

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/14 ,  H04L1/1812 ,  H04L5/0055 ,  H04W72/042 ,  H04W72/0446

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus may be a base station. The apparatus may transmit a first grant to a UE. The apparatus may determine whether an acknowledgment to the first grant is received. When the acknowledgment to the first grant fails to be received by the apparatus, the apparatus may transmit, to the UE, a second grant including information regarding the first grant. In another aspect, an apparatus may be a UE. The apparatus may receive a first grant. The first grant may include a first Mayday bit. The apparatus may receive a second grant. The second grant may include a TTI count corresponding to a number of unacknowledged TTIs. The second grant may further include a second Mayday bit. The apparatus may determine an acknowledgment based on the TTI count and the first and second Mayday bits.

公开(公告)号：US20140341050A1

公开(公告)日：2014-11-20

申请号：US14275803

申请日：2014-05-12

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Michael Mao WANG ,  Wanshi CHEN ,  Peter GAAL ,  Yongbin WEI ,  Aleksandar DAMNJANOVIC ,  Hao XU ,  Taesang YOO

IPC: H04L5/00 ,  H04W24/02

CPC classification number: H04L5/0053 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0058 ,  H04L25/0202 ,  H04L25/0224 ,  H04L25/0236 ,  H04W24/02

Abstract: Reference signals may not uniformly span over time and/or frequency on a resource unit. For example, reference signals may non-uniformly occupy symbols of a subframe. Alternatively, reference signals normally transmitted over certain tones of a subframe may have to be punctured to avoid collisions with a PSS and/or SSS transmitted over the same tones. Consequently, a UE may only be able to use a subset of reference signal tones for performing channel estimation. Accordingly, a method, an apparatus, and a computer program product for wireless communication are provided for improving channel estimation under a non-uniform signal pattern. The apparatus indicates to a UE to utilize a subset of reference signals to derive a channel estimate for demodulating data in a specific subframe, and transmits a plurality of subframes, the plurality of subframes including the reference signals and the specific subframe, the specific subframe including a PSS and/or SSS.

Abstract translation: 参考信号可能不会在资源单元上的时间和/或频率上均匀地跨越。 例如，参考信号可能不均匀地占据子帧的符号。 或者，通常在子帧的某些音调上发送的参考信号可能必须被打孔以避免与通过相同音调发送的PSS和/或SSS的冲突。 因此，UE可能仅能够使用用于执行信道估计的参考信号音调的子集。 因此，提供了一种用于无线通信的方法，装置和计算机程序产品，用于在非均匀信号模式下改进信道估计。 该设备向UE指示使用参考信号的子集来导出用于在特定子帧中解调数据的信道估计，并且发送包括参考信号和特定子帧的多个子帧，所述特定子帧包括 PSS和/或SSS。

公开(公告)号：US20140098773A1

公开(公告)日：2014-04-10

申请号：US14105086

申请日：2013-12-12

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Hendrik SCHOENEICH ,  Tao LUO ,  Yongbin WEI ,  Myriam RAJIH ,  Durga Prasad MALLADI

IPC: H04W24/02 ,  H04L5/00

CPC classification number: H04W24/02 ,  H04B7/0678 ,  H04B7/068 ,  H04B7/0842 ,  H04J11/005 ,  H04L5/0058

Abstract: In order to cancel any interference due to the second signal (e.g., from a non-serving cell) from a signal received at a UE, without receiving additional control information, the UE blindly estimates parameters associated with decoding the second signal. This may include determining a metric based on sets of symbols associated with the signals in order to determine parameters for the second signal, e.g., the transmission mode, modulation format, and/or spatial scheme of the second signal. The parameters for the signal may be determined based on a comparison of the metric with a threshold. When a spatial scheme and a modulation format is unknown, the blind estimation may include determining a plurality of constellations of possible transmitted modulated symbols associated with a potential spatial scheme and modulation format combination. Interference cancellation can be performed using the constellations and a corresponding probability weight.

Abstract translation: 为了从UE接收到的信号中消除由于第二信号（例如，来自非服务小区）的任何干扰而不接收附加控制信息，UE盲目地估计与解码第二信号相关联的参数。 这可以包括基于与信号相关联的符号集来确定度量，以便确定第二信号的参数，例如第二信号的传输模式，调制格式和/或空间方案。 可以基于度量与阈值的比较来确定信号的参数。 当空间方案和调制格式未知时，盲估计可以包括确定与潜在的空间方案和调制格式组合相关联的可能传输的调制符号的多个星座。 干扰消除可以使用星座和相应的概率权重进行。

公开(公告)号：US20130336249A1

公开(公告)日：2013-12-19

申请号：US13916437

申请日：2013-06-12

Applicant: QUALCOMM Incorporated

Inventor： Lu ZHAO ,  Tao LUO ,  Taesang YOO ,  Siddhartha MALLIK ,  Yongbin WEI ,  Durga Prasad MALLADI

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04L5/005 ,  H04L5/0053

Abstract: A method, a computer program product, and an apparatus are provided. The methods and apparatus for wireless communication include receiving a transmission, the transmission including a plurality of resource element groups (REGs). Aspects of the methods and apparatus include selecting a set of REGs from the plurality of REGs, the set of REGs including at least one REG and determining a traffic to pilot ratio (TPR) for the set of REGs based on the transmission and reference signals in the transmission. Aspects of the methods and apparatus include determining whether the set of REGs includes at least one of control information or data based on the TPR and canceling at least one of control information or data from the set of REGs based on the TPR.

Abstract translation: 提供了一种方法，计算机程序产品和装置。 无线通信的方法和装置包括接收传输，该传输包括多个资源单元组（REG）。 方法和装置的方面包括从多个REG中选择一组REG，包括至少一个REG的REG集合，并且基于传输和参考信号来确定REG集合的业务与导频比（TPR） 传输。 方法和装置的方面包括基于TPR来确定该REG组是否包括控制信息或数据中的至少一个，并且基于该TPR从该组REG中取消控制信息或数据中的至少一个。

公开(公告)号：US20250063386A1

公开(公告)日：2025-02-20

申请号：US18764892

申请日：2024-07-05

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Taesang YOO ,  Eren BALEVI

IPC: H04W24/02 ,  H04L41/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, based at least in part on one or more performance metrics associated with an artificial intelligence (AI) model associated with wireless communication, assistance information associated with an expected performance of the AI model. The UE may assess, based at least in part on the assistance information, the expected performance of the AI model. Numerous other aspects are described.

公开(公告)号：US20250055561A1

公开(公告)日：2025-02-13

申请号：US18366042

申请日：2023-08-07

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Taesang YOO ,  Rajat PRAKASH

IPC: H04B7/26 ,  H04B7/06 ,  H04L41/16

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate, with a network entity, an indication of operation of an artificial intelligence (AI) or (ML) model at the UE and/or the network entity. Based on the indication of the operation of the AI or ML model, the UE may communicate, with the network entity, an indication of the QCL relation between the AI or ML model and reference signal communicated by the UE, a physical channel communicated by the UE, an antenna port of the network entity, or an antenna port of the UE. The QCL relation may indicate the radio characteristics applicable to the AI or ML model. The QCL relation may indicate the radio characteristics applicable to the AI or ML model.

公开(公告)号：US20250030473A1

公开(公告)日：2025-01-23

申请号：US18707090

申请日：2022-01-19

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Arumugam CHENDAMARAI KANNAN ,  Taesang YOO ,  Philip Aaron SISK ,  Himanshu JOSHI ,  Mahmoud TAHERZADEH BOROUJENI ,  Tao LUO

IPC: H04B17/318 ,  H04B7/06 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that includes one or more mapping rules, each of the one or more mapping rules indicating a mapping between one or more reference signal received power (RSRP) measurements, associated with one or more reference signal resources, and one or more indices, associated with one or more feature input vectors for a machine learning model. The UE may initiate a beam prediction based at least in part on the one or more mapping rules. Numerous other aspects are described.

公开(公告)号：US20240430846A1

公开(公告)日：2024-12-26

申请号：US18821799

申请日：2024-08-30

Applicant: QUALCOMM Incorporated

Inventor： Lorenzo FERRARI ,  Taesang YOO ,  Siddhartha MALLIK

IPC: H04W64/00 ,  G01S5/02 ,  G01S19/46 ,  H04B7/02 ,  H04B17/27 ,  H04W84/12

Abstract: Position determination of a user equipment (UE) is supported using channel measurements obtained for Wireless Access Points (WAPs), wherein the channel measurements are for Line of Sight (LOS) and Non-LOS (NLOS) signals. Based on WAP almanac information and the channel measurements, channel parameters indicative of positions of signal sources relative to a first position of a UE may be determined. Using the first position of the UE and an association of the signal sources with corresponding channel parameters, a second position of the UE may be determined. The position of the UE may be a probability density function. Additionally, position information for signal sources may be determined, such as a probability density function, as well as signal blockage probability and an antenna geometry and the WAP almanac information may be updated accordingly.

公开(公告)号：US20240413867A1

公开(公告)日：2024-12-12

申请号：US18695678

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yuwei REN ,  Wei XI ,  Rui HU ,  Yu ZHANG ,  Taesang YOO ,  Hao XU

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI). According to certain aspects, a method for wireless communications by a user equipment (UE) generally includes generating channel state information (CSI) comprising a (at least one) fractional rank indication (RI) value for a set of candidate ranks, a first indication of a first layer or first singular vector, and a second indication of a second layer or second singular vector and transmitting the CSI to a network entity.