公开(公告)号：US20080161691A1

公开(公告)日：2008-07-03

申请号：US11646841

申请日：2006-12-27

申请人： Yu Zhang ,  Xin Li

发明人： Yu Zhang ,  Xin Li

IPC分类号： A61B8/00

CPC分类号： G01S15/8981 ,  A61B8/06 ,  A61B8/0883 ,  A61B8/488 ,  G01S7/52042 ,  G01S15/8988

摘要： A method for Tissue Doppler Imaging is provided. The method for Tissue, Doppler Imaging comprises steps of: a) transmitting ultrasound signals to a target area including the tissue to be imaged, and receiving the echo signals returned from the target area; b) performing Doppler estimation on Doppler signals extracted from the echo signals, to acquire Doppler parameters of stationary tissue or nonstationary tissue or blood flow within the target area, wherein the Doppler parameters comprise at least velocity and power; c) processing the acquired power of the Doppler parameters to obtain the power related to the nonstationary tissue within the target area, so as to display the tissue motion.

摘要翻译： 提供了一种组织多普勒成像方法。 用于组织，多普勒成像的方法包括以下步骤：a）将超声信号发送到包括要成像的组织的目标区域，以及接收从目标区域返回的回波信号; b）对从所述回波信号提取的多普勒信号执行多普勒估计，以获取所述目标区域内的静止组织或非平稳组织或血流的多普勒参数，其中所述多普勒参数至少包括速度和功率; c）处理获取的多普勒参数的功率以获得与目标区域内的非平稳组织相关的功率，以便显示组织运动。

公开(公告)号：US20070016045A1

公开(公告)日：2007-01-18

申请号：US11316048

申请日：2005-12-21

申请人： Yu Zhang

发明人： Yu Zhang

IPC分类号： A61B8/00

CPC分类号： A61B8/06 ,  A61B8/488

摘要： A method and apparatus for extracting an envelope curve of a spectrogram, for use in measurement of blood flow velocity by using spectral Doppler techniques, the method comprising steps of: processing RF ultrasound echo signals to obtain Doppler signals; performing spectral analysis on the Doppler signals, to obtain a corresponding power spectrum P(f); estimating a forward maximum frequency fmax+ and a backward maximum frequency fmax− for the Doppler signals at a predetermined moment, according to the power spectrum P(f) of the Doppler signals at the predetermined moment; determining a noise frequency range according to the two maximum frequencies, so as to estimate an average noise power E; and correcting the forward maximum frequency and the backward maximum frequency by using the average noise power E. With the method of the invention, influence from the SNR and bandwidth on the envelope curve may be reduced, so as to be useful for accurate computation of blood flow parameters.

摘要翻译： 一种用于提取频谱图的包络线的方法和装置，用于通过使用频谱多普勒技术测量血流速度，所述方法包括以下步骤：处理RF超声回波信号以获得多普勒信号; 对多普勒信号进行光谱分析，得到相应的功率谱P（f）; 根据多普勒的功率谱P（f），在预定时刻估计用于多普勒信号的前向最大频率f max + 和后向最大频率f max = 信号在预定时刻; 根据两个最大频率确定噪声频率范围，以估计平均噪声功率E; 并且通过使用平均噪声功率E来校正正向最大频率和后向最大频率。利用本发明的方法，可以减小来自信噪比和带宽对包络线的影响，从而有助于精确计算血液 流量参数。

公开(公告)号：US20070007487A1

公开(公告)日：2007-01-11

申请号：US11482065

申请日：2006-07-07

申请人： Jianfeng Wu ,  Maoqiong Gong ,  Yu Zhang

发明人： Jianfeng Wu ,  Maoqiong Gong ,  Yu Zhang

IPC分类号： C09K5/04

CPC分类号： C09K5/045 ,  C09K2205/12 ,  C09K2205/128

摘要： Refrigerant mixtures used in the lower temperature stage of two-stage cascade refrigeration systems and obtained by physical mixing of ethane, hexafluoroethane, or/and trifluoromethane. One of the refrigerant mixtures comprises ethane and hexafluoroethane. Another refrigerant mixture comprises ethane and trifluoromethane. Yet another one of the refrigerant mixtures comprises ethane, hexafluoroethane, and trifluoromethane.

摘要翻译： 通过两级级联制冷系统的较低温度阶段使用的制冷剂混合物，通过物理混合乙烷，六氟乙烷或/和三氟甲烷获得。 其中一种制冷剂混合物包括乙烷和六氟乙烷。 另一种制冷剂混合物包括乙烷和三氟甲烷。 另一种制冷剂混合物包括乙烷，六氟乙烷和三氟甲烷。

公开(公告)号：US20230179380A1

公开(公告)日：2023-06-08

申请号：US17997776

申请日：2020-06-12

申请人： Min Huang ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Qiaoyu Li ,  Chenxi Hao ,  Liangming Wu ,  Kangqi Liu ,  Jing Dai ,  Tao Luo ,  Wanshi Chen ,  QUALCOMM Incorporated

发明人： Min Huang ,  Yu Zhang ,  Chao Wei ,  Hao Xu ,  Qiaoyu Li ,  Chenxi Hao ,  Liangming Wu ,  Kangqi Liu ,  Jing Dai ,  Tao Luo ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04L5/14 ,  H04B7/06 ,  H04B7/0456

CPC分类号： H04L5/0057 ,  H04B7/0486 ,  H04B7/0626 ,  H04L5/14 ,  H04L5/0091

摘要： Aspects of the disclosure relate to a wireless user equipment (UE) configured to receive a downlink in a network configured for full duplex communication. The UE receives from the network an indication of a maximum rank of an uplink from an interfering, aggressor UE. The UE measures interference of a signal from the aggressor UE, and based on the measurement, determines one or more rank values for the aggressor UE, less than or equal to the maximum rank. The UE may further determine one or more channel parameters for downlink transmissions the UE receives, corresponding to the determined rank values. The UE then transmits a channel state information (CSI) report that includes an indication of at least one of the one or more rank values for the aggressor UE. The CSI report may further include the determined channel parameters. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11329849B2

公开(公告)日：2022-05-10

申请号：US16619038

申请日：2018-05-28

申请人： QUALCOMM Incorporated ,  June Namgoong ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Alexandros Manolakos

发明人： June Namgoong ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Alexandros Manolakos

IPC分类号： H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0417 ,  H04B7/06

摘要： Aspects of the present disclosure disclose techniques for the indication of the allocation of the downlink (DL) demodulation reference signal (DM-RS) ports for the data channel in NR communications. In some examples, the channel state information (CSI) reference signal (CSI-RS) may be associated with a corresponding DM-RS for a DL data channel. The transmitting device, in some examples, may further transmit a notification that provides resource allocations (e.g., port allocations) that minimize the redundant information that is required to be transmitted from the base station to the user equipment (UE) when the DM-RS port allocation is the same as the CSI-RS port allocation received by the UE in an earlier time slot.

公开(公告)号：US20210367724A1

公开(公告)日：2021-11-25

申请号：US16641639

申请日：2017-09-07

申请人： Yu ZHANG ,  Wanshi CHEN ,  Chao WEI ,  Peter GAAL ,  Timo Ville VINTOLA ,  Vishal MAHAJAN ,  Alexei Yurievitch GOROKHOV ,  Amir AMINZADEH GOHARI ,  Alexandros MANOLAKOS ,  Joseph Binamira SORIAGA ,  Valentin Alexandru GHEORGHIU ,  Quaicomm Incorporated

发明人： Yu Zhang ,  Wanshi Chen ,  Chao Wei ,  Peter Gaal ,  Timo Ville Vintola ,  Vishal Mahajan ,  Alexei Yurievitch Gorokhov ,  Amir Aminzadeh Gohari ,  Alexandros Manolakos ,  Joseph Binamira Soriaga ,  Valentin Alexandru Gheorghiu

IPC分类号： H04L5/00 ,  H04B7/0413

摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message, the UE capability message indicating a supported transmit antenna switching (TxAS) capability for each port of the UE. The UE may receive a configuration message indicating an uplink multiple-input/multiple-output (UL MIMO) configuration for the UE, the UL MIMO configuration being based at least in part on the UE capability message. The UE may identify, based at least in part on the configuration message, a sounding reference signal (SRS) configuration to use for transmitting SRSs in conjunction with the UL MIMO communications, the SRS configuration comprising a configuration for transmission by the UE of SRSs using at least one of the two or more ports of the UE, the SRSs transmitted on one or more antennas of the UE selected according to a TxAS configuration for the respective port.

公开(公告)号：US11044712B2

公开(公告)日：2021-06-22

申请号：US16341836

申请日：2017-11-10

申请人： QUALCOMM Incorporated ,  Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

发明人： Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04W24/10 ,  H04W72/10

摘要： Certain aspects of the present disclosure provide techniques for indicating a purpose for a reference signal. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving an indication of a purpose of a reference signal (RS) from a base station (BS) and processing the RS in accordance with the indicated purpose.

公开(公告)号：US20200244419A1

公开(公告)日：2020-07-30

申请号：US16637067

申请日：2017-08-11

申请人： Alexandros MANOLAKOS ,  Chenxi HAO ,  Yu ZHANG ,  Wanshi CHEN ,  Peter GAAL ,  QUALCOMM Incorporated

发明人： Alexandros Manolakos ,  Chenxi Hao ,  Yu Zhang ,  Wanshi Chen ,  Peter Gaal

IPC分类号： H04L5/00 ,  H04W72/04

摘要： Wireless communication that includes transmission, reception, and configuration of a CSIRS with a configurable band-width is discussed. A base station/gNB may determine a number of antenna ports to be used for wireless communication. The base station/gNB may allocate a first plurality of frequency resources for the transmission of the CSIRS based on the determined number of antenna ports, and may transmit the CSIRS over the first plurality of frequency resources. A mobile device may receive the CSIRS over the first plurality of frequency resources and estimate at least one of channel quality and interference associated with the first plurality of frequency resources based on the received CSIRS.

公开(公告)号：US20200178240A1

公开(公告)日：2020-06-04

申请号：US16615534

申请日：2018-06-15

申请人： Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Wanshi CHEN ,  QUALCOMM Incorporated

发明人： Yu Zhang ,  Chao Wei ,  Liangming Wu ,  Wanshi Chen

IPC分类号： H04W72/04 ,  H04L5/00

摘要： Reporting aperiodic channel state information (A-CSI) via a physical uplink control channel (PUCCH) is disclosed. A UE receives a configuration to report aperiodic channel state information (A-CSI) using physical uplink control channel (PUCCH). The UE can report lightweight A-CSI via short/long PUCCH or may report heavy A-CSI via short/long PUCCH. The UE receives a trigger signal for PUCCH-based A-CSI reporting either by a dedicated downlink grant or by a group common DCI. When triggered via a DCI-based trigger, the PUCCH resource can be either a resource used for HARQ-ACK feedback, e.g., short PUCCH; or a semi-static configured PUCCH resource, e.g., either short PUCCH or long PUCCH. When triggered via a group common DCI-based trigger, the PUCCH resource can be either semi-statically configured, or dynamically indicated.

公开(公告)号：US20200169364A1

公开(公告)日：2020-05-28

申请号：US16608328

申请日：2018-06-08

申请人： Chenxi HAO ,  Yu ZHANG ,  Liangming WU ,  Chao WEI ,  Wanshi CHEN ,  Qualcomm Incorporated

发明人： Chenxi Hao ,  Yu Zhang ,  Liangming Wu ,  Chao Wei ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04W72/14 ,  H04W24/10 ,  H04W72/04 ,  H04L5/14

摘要： Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for communicating an uplink grant and a channel state information reference signal (CSI-RS) trigger. A wireless device may identify e a pending collision for a slot of a carrier between a CSI-RS and uplink data. The wireless device may determine a communication configuration for the CSI-RS and the uplink data such that no collision occurs. The determined communication configuration for the CSI-RS may include delaying one of the colliding signals, transmitting only one of the colliding signals and suppressing the other, or reconfiguring the slot such that both signals can be transmitted successfully. Additionally, the UE and the base station may determine a CSI reporting configuration based on the determined communication configuration.