公开(公告)号：US20180176787A1

公开(公告)日：2018-06-21

申请号：US15612588

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Xiaoxia ZHANG ,  Taesang YOO ,  Aleksandar DAMNJANOVIC ,  Juan MONTOJO ,  Siddhartha MALLIK

IPC: H04W16/14 ,  H04W28/02 ,  H04W56/00 ,  H04W72/12 ,  H04W40/24 ,  H04W72/04 ,  H04W88/06 ,  H04W74/08

Abstract: Wireless communications systems and methods related to autonomous uplink transmission and autonomous downlink transmission in a shared spectrum are provided. A first wireless communication device identifies a transmission opportunity (TXOP) in a shared spectrum shared by a plurality of network operating entities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device a first frequency band of the shared spectrum designated for autonomous communication by the first network operating entity during the TXOP. The first wireless communication device communicates, with a second wireless communication device associated with the first network operating entity in the first frequency band, autonomous data during the TXOP.

公开(公告)号：US20180062708A1

公开(公告)日：2018-03-01

申请号：US15684823

申请日：2017-08-23

Applicant: QUALCOMM Incorporated

Inventor： Jing SUN ,  Xiaoxia ZHANG ,  Taesang YOO ,  Siddhartha MALLIK ,  Juan MONTOJO

IPC: H04B7/024 ,  H04L12/715

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/0632 ,  H04B17/318 ,  H04L5/0053 ,  H04L45/46 ,  H04W56/002 ,  H04W56/0065

Abstract: Techniques for overlapping cluster architecture for coordinated multipoint (CoMP) are provided. According to certain aspects, a method of wireless communication by a transmission point is provided. The method generally includes receiving, from a first base station, a first signal for a first user equipment (UE) to transmit over the air, receiving, from a second base station, a second signal for a second UE to transmit over the air, and combining the first and the second signals from the first and second base stations and transmitting the combined signal to the first and second UE.

公开(公告)号：US20160128028A1

公开(公告)日：2016-05-05

申请号：US14882165

申请日：2015-10-13

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Taesang YOO ,  Arumgam CHENDAMARAI KANNAN ,  Yongbin WEI ,  Jelena DAMNJANOVIC ,  Durga Prasad MALLADI ,  Tao LUO

IPC: H04W72/04 ,  H04L1/18

CPC classification number: H04W72/042 ,  H04L1/1861 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0446

Abstract: Methods, systems, and devices are described for wireless communication employing two-stage control channel messaging. Systems, methods, and apparatuses for two stage two-stage physical downlink control channel (PDCCH) with a downlink control information (DCI) flag and DCI format size indicator are described. For instance, the present disclosure presents an example method of wireless communication at a wireless device, which may include receiving, at a first bandwidth and during a transmission time interval (TTI), a first control channel message. In addition, the example method may include determining, based on a flag in the first control channel message, whether a second control channel message is present in the TTI. Furthermore, the example method may include receiving, at a second bandwidth, the second control channel message where the flag indicates that the second control channel message is present for the TTI.

Abstract translation: 描述了采用两级控制信道消息传送的无线通信的方法，系统和设备。 描述了具有下行链路控制信息（DCI）标志和DCI格式大小指示符的两级两级物理下行链路控制信道（PDCCH）的系统，方法和装置。 例如，本公开提供了无线设备处的无线通信的示例性方法，其可以包括在第一带宽和传输时间间隔（TTI）期间接收第一控制信道消息。 此外，示例性方法可以包括基于第一控制信道消息中的标志来确定TTI中是否存在第二控制信道消息。 此外，示例性方法可以包括在第二带宽处接收第二控制信道消息，其中标志指示针对TTI存在第二控制信道消息。

公开(公告)号：US20140334434A1

公开(公告)日：2014-11-13

申请号：US14450157

申请日：2014-08-01

Applicant: QUALCOMM Incorporated

Inventor： Kapil BHATTAD ,  Yi HUANG ,  Tao LUO ,  Taesang YOO

IPC: H04L5/00

CPC classification number: H04J11/005

Abstract: Aspects of the disclosure are related to identifying whether an apparatus (e.g., base station, access point, etc.) is transmitting using a CRS based transmission scheme or a UE-RS based transmission scheme. Such detection may be necessary for PDSCH interference cancellation (IC) of a neighboring cell since a UE may not know which transmission scheme is used by the neighboring cell. For instance, the UE may know the transmission scheme of the serving cell, but the UE may not know the transmission scheme of a neighboring non-serving cell. As such, aspects of the disclosure provide for a blind detection algorithm to identify or determine a transmission mode or transmission scheme of a neighboring cell to then apply interference cancellation (IC) to an interfering signal received from the neighboring cell.

Abstract translation: 本公开的方面与识别装置（例如，基站，接入点等）是否正在使用基于CRS的传输方案或基于UE-RS的传输方案进行传输有关。 这样的检测对于相邻小区的PDSCH干扰消除（IC）可能是必要的，因为UE可能不知道相邻小区使用哪种传输方案。 例如，UE可以知道服务小区的传输方案，但是UE可能不知道相邻非服务小区的传输方案。 因此，本公开的方面提供盲检测算法来识别或确定相邻小区的传输模式或传输方案，然后将干扰消除（IC）应用于从相邻小区接收的干扰信号。

公开(公告)号：US20140301298A1

公开(公告)日：2014-10-09

申请号：US14243780

申请日：2014-04-02

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Wanshi CHEN ,  Taesang YOO ,  Hao XU ,  Yongbin WEI ,  Durga Prasad MALLADI ,  Brian Clarke BANISTER ,  Michael Lee MCCLOUD ,  Aleksandar DAMNJANOVIC ,  Peter GAAL ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W24/02 ,  H04L5/00

CPC classification number: H04L5/0053 ,  H04L1/1822 ,  H04L5/006 ,  H04L5/0073 ,  H04W92/20

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for transmission restriction and efficient signaling. A base station (BS) may determine information regarding a restricted set of system parameters used for transmission from at least one of the serving BS or one or more potentially interfering BSs and signal the information to a user equipment (UE). According to certain aspects, a UE may receive the signaling of information regarding the restricted set of system parameters used for transmission from at least one of the serving BS or the one or more potentially interfering BSs and use the information to cancel interference by transmissions from the one or more potentially interfering BSs or serving BS.

Abstract translation: 本公开的某些方面涉及用于传输限制和有效信令的方法和装置。 基站（BS）可以确定关于用于从服务BS或一个或多个潜在干扰BS中的至少一个传输的受限制的系统参数集合的信息，并将该信息发送给用户设备（UE）。 根据某些方面，UE可以从服务BS或一个或多个潜在干扰BS中的至少一个接收关于用于传输的受限制的系统参数集合的信息的信令，并且使用该信息来消除来自 一个或多个潜在干扰BS或服务BS。

公开(公告)号：US20140293971A1

公开(公告)日：2014-10-02

申请号：US14227279

申请日：2014-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： Taesang YOO ,  Tao LUO ,  Wanshi CHEN ,  Hao XU ,  Yongbin WEI ,  Peter GAAL ,  Durga Prasad MALLADI

IPC: H04W56/00 ,  H04W72/08

CPC classification number: H04W56/003 ,  H04W72/042 ,  H04W72/1226

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for employing a neighboring cell's assistance information for interference mitigation (e.g., by conveying the information to a user equipment). A base station (BS) may determine assistance information for a neighboring cell and convey it to a user equipment (UE). A UE may receive assistance information for a neighboring cell and use that information for performing interference cancellation or suppression on received signals. The UE may receive the assistance information from a serving cell or a non-serving cell. The assistance information may be valid for a particular transmission instance, for a known period of time, or until updated by a BS.

Abstract translation: 本公开的某些方面涉及用于使用相邻小区的辅助信息用于干扰减轻的方法和装置（例如，通过将信息传送给用户设备）。 基站（BS）可以确定相邻小区的辅助信息并将其传送给用户设备（UE）。 UE可以接收相邻小区的辅助信息，并使用该信息来对接收的信号执行干扰消除或抑制。 UE可以从服务小区或非服务小区接收辅助信息。 辅助信息对于特定的传输实例可以在已知的时间段内有效，或直到由BS更新。

公开(公告)号：US20140029456A1

公开(公告)日：2014-01-30

申请号：US13943718

申请日：2013-07-16

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha MALLIK ,  Tao LUO ,  Taesang YOO

IPC: H04J11/00

CPC classification number: H04J11/0023 ,  H04B7/005 ,  H04B15/00 ,  H04B17/318 ,  H04B17/345 ,  H04L5/0032 ,  H04W52/244 ,  H04W72/0413 ,  H04W72/0426 ,  H04W72/082

Abstract: A method of wireless communication is presented. The method includes determining, for each resource element group of a resource block pair, whether an interfering control channel is present on the resource block pair. The determination may be based on whether estimated power of the resource element groups varies among two or more resource element groups. The method also includes estimating the interference on the resource block pair based on the determination.

Abstract translation: 提出了一种无线通信方法。 该方法包括为资源块对的每个资源元素组确定资源块对上是否存在干扰控制信道。 该确定可以基于资源元素组的估计功率是否在两个或更多个资源元素组之间变化。 该方法还包括基于该确定来估计资源块对上的干扰。

公开(公告)号：US20140003267A1

公开(公告)日：2014-01-02

申请号：US13928202

申请日：2013-06-26

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  Tao LUO ,  Siddhartha MALLIK

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B7/0417 ,  H04B7/0632 ,  H04B17/24 ,  H04B17/309 ,  H04B17/327 ,  H04B17/336 ,  H04L1/0026 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0091

Abstract: Parameters associated with an interfering downlink transmission may be determined at the UE or may be signaled to the UE from an eNodeB. The parameters may be actual parameters or hypothetical parameters. Based on the parameters, the UE may determine a metric that reflects an amount of interference cancelled from the interfering data channel transmission. The UE determines a quasi-clean channel state information and/or interference efficiency based on the parameters. The UE may transmit the quasi-clean CSI and/or the interference efficiency to the eNodeB.

Abstract translation: 可以在UE处确定与干扰下行链路传输相关联的参数，或者可以从eNodeB向eNodeB发送信号给UE。 参数可以是实际参数或假设参数。 基于参数，UE可以确定反映从干扰数据信道传输中消除的干扰量的度量。 UE基于参数确定准清除信道状态信息和/或干扰效率。 UE可以向eNodeB发送准干净CSI和/或干扰效率。

公开(公告)号：US20250088239A1

公开(公告)日：2025-03-13

申请号：US18244871

申请日：2023-09-11

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Yu ZHANG ,  Jay Kumar SUNDARARAJAN ,  Taesang YOO

IPC: H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for wireless communications by an apparatus. A method includes sending signaling indicative of one or more power ratios, wherein each of the one or more power ratios is based on a transmit power for transmitting sounding reference signal (SRS) using a corresponding antenna and a receive power for receiving channel state information reference signal (CSI-RS) using the corresponding antenna, and wherein the one or more power ratios are associated with one or more antennas; sending a first CSI-RS; receiving a first SRS; receiving first channel state feedback (CSF) corresponding to the CSI-RS; and performing channel estimation based on the first CSF and the first SRS.

公开(公告)号：US20250081154A1

公开(公告)日：2025-03-06

申请号：US18461970

申请日：2023-09-06

Applicant: QUALCOMM Incorporated

Inventor： Mohammed Ali Mohammed HIRZALLAH ,  Taesang YOO ,  Srinivas YERRAMALLI

IPC: H04W64/00

Abstract: A user equipment (UE) may receive a configuration for collecting measurements to at least one of train or verify a positioning model. The UE may receive a set of positioning signals. The UE may measure the set of positioning signals. The UE may output a subset of the measured set of positioning signals to at least one of train or verify the positioning model based on the configuration. The UE may output the subset of the measured set of positioning signals by training verifying the positioning model at the UE based on the subset of the measured set of positioning signals, or by transmitting the subset of the measured set of positioning signals to at least one of train or verify the positioning model.