公开(公告)号：US07580505B2

公开(公告)日：2009-08-25

申请号：US11647558

申请日：2006-12-29

申请人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

发明人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

IPC分类号： G01N23/04

CPC分类号： G01N23/087 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041

摘要： The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.

摘要翻译： 本发明公开了一种使用多能量辐射检查物体的方法及其装置。 该方法包括以下步骤：使多能量辐射与被检查物体相互作用; 在多能量辐射与检测对象之间的相互作用之后检测和记录检测值; 将一部分检测值代入预定校准函数以获得包括主要材料属性的信息; 以及通过应用适于对应于所述信息的能带的一组函数来确定所述对象的其他材料属性。 本发明适用于在海关，港口和机场不开放集装箱的大型集装箱货物检验。

公开(公告)号：US20070183568A1

公开(公告)日：2007-08-09

申请号：US11647558

申请日：2006-12-29

申请人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

发明人： Kejun Kang ,  Haifeng Hu ,  Zhiqiang Chen ,  Yuanjing Li ,  Xuewu Wang ,  Chuanxiang Tang ,  Liming Wang ,  Yinong Liu ,  Yaohong Liu ,  Li Zhang ,  Jianmin Li ,  Huaqiang Zhong ,  Jianping Cheng ,  Huaibi Chen ,  Hua Peng ,  Yali Xie ,  Junli Li ,  Ning Kang ,  Qinghua Li

IPC分类号： G01N23/04

CPC分类号： G01N23/087 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041

摘要： The present invention discloses a method for inspecting an object using multi-energy radiations and an apparatus thereof. The method comprises the steps of: causing multi-energy radiations to interact with an object under inspection; detecting and recording detection values after an interaction between the multi-energy radiations and the object under inspection; substituting a portion of the detection values into a predetermined calibration function to obtain information comprising primary material attribute; and determining further material attributes of the object by applying a set of functions suitable for a energy band corresponding to the information. The present invention is applicable to the large container cargo inspection without opening containers at customs, ports and airports.

摘要翻译： 本发明公开了一种使用多能量辐射检查物体的方法及其装置。 该方法包括以下步骤：使多能量辐射与被检查物体相互作用; 在多能量辐射与检测对象之间的相互作用之后检测和记录检测值; 将一部分检测值代入预定校准函数以获得包括主要材料属性的信息; 以及通过应用适于对应于所述信息的能带的一组函数来确定所述对象的其他材料属性。 本发明适用于在海关，港口和机场不开放集装箱的大型集装箱货物检验。

公开(公告)号：US20210399923A1

公开(公告)日：2021-12-23

申请号：US17465769

申请日：2021-09-02

申请人： Xiaogang Chen ,  Qinghua Li ,  Laurent Cariou

发明人： Xiaogang Chen ,  Qinghua Li ,  Laurent Cariou

IPC分类号： H04L25/02 ,  H04L5/00 ,  H04L25/03

摘要： This disclosure describes systems, methods, and devices related to EHT training fields. A device may send a trigger frame having a type of HE null data packet (NDP) feedback, wherein the trigger frame requests feedback from a station device (STA) of one or more station device (STA). The device may receive a frame from the STA, wherein the frame comprises an HE long training field (HE-LTF) portion and an HE short training field (HE-STF), wherein the HE-STF is generated in a frequency domain over a first bandwidth. The device may identify that the HE-LTF comprises energy on a set of tones, wherein the set of tones are selected based on feedback status values associated with a resource unit (RU) tone set index. The device may identify that the HE-STF comprises a second set of tones that are energized based on a sequence that is selected based on the first bandwidth used for the frame

公开(公告)号：US20210144752A1

公开(公告)日：2021-05-13

申请号：US17123893

申请日：2020-12-16

申请人： Xiaogang Chen ,  Qinghua Li ,  Feng Jiang ,  Ziv Avital ,  Po-Kai Huang

发明人： Xiaogang Chen ,  Qinghua Li ,  Feng Jiang ,  Ziv Avital ,  Po-Kai Huang

IPC分类号： H04W74/00 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  G06F11/10

摘要： An extremely high throughput (EHT) station (STA) configured for trigger based (TB) transmission may decode an trigger frame (TF) received from an access point (AP). The TF may include an assignment of resources comprising one or more 20 MHz channels. The EHT STA may determine which of the one or more assigned channels are available for transmission and which of the allocated channels are unavailable when the EHT STA is assigned more than one 20 MHz channel. The EHT STA may encode a EHT TB PPDU in response to the trigger frame. The EHT TB PPDU may be encoded to include an EHT preamble followed by a data field. The EHT preamble may be encoded to indicate channel availability. The EHT STA may generate signaling to cause the EHT STA to transmit the encoded EHT TB PPDU only on the assigned channels that have been determined to be available.

公开(公告)号：US20210068070A1

公开(公告)日：2021-03-04

申请号：US17095445

申请日：2020-11-11

申请人： Jonathan Segev ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen ,  Emily Qi ,  Hassan Yaghoobi ,  Gadi Shor ,  Robert Stacey ,  Dibakar Das

发明人： Jonathan Segev ,  Qinghua Li ,  Feng Jiang ,  Xiaogang Chen ,  Emily Qi ,  Hassan Yaghoobi ,  Gadi Shor ,  Robert Stacey ,  Dibakar Das

IPC分类号： H04W64/00 ,  H04W72/04 ,  H04W12/08 ,  H04W12/02

摘要： This disclosure describes systems, methods, and devices related to secure location measurement sharing. A device may cause to send a first indication associated with a location of the device to a cloud server. The device may cause to send a second indication associated with a ranging information of an access point (AP), wherein the AP is connected to the cloud server. The device may identify an access token received from the cloud server, wherein the access token is associated with providing anonymized AP location information to the AP, and wherein the access token is associated with accessing channel allocation from a channel access database.

公开(公告)号：US20210051722A1

公开(公告)日：2021-02-18

申请号：US17084755

申请日：2020-10-30

申请人： Po-Kai Huang ,  Qinghua Li ,  Xiaogang Chen ,  Robert J. Stacey ,  Laurent Cariou ,  Feng Jiang ,  Yaron Alpert

发明人： Po-Kai Huang ,  Qinghua Li ,  Xiaogang Chen ,  Robert J. Stacey ,  Laurent Cariou ,  Feng Jiang ,  Yaron Alpert

IPC分类号： H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04L1/00

摘要： Methods, apparatuses, and computer readable media for a common preamble for wireless local-area networks (WLANs). An apparatus of an access point (AP) or station (STA) comprising processing circuitry configured to encode an AP trigger frame that includes a resource allocation for other APs to transmit trigger frames to perform an uplink or downlink multi-user transmission with stations (STAs). The resource allocation includes information so that the transmissions are coordinated at the physical level to lessen interference among the APs and the stations. The processing is configured to encode a trigger frame for multi-AP request-to-send (RTS), the multi-AP trigger frame comprising for each of a plurality of APs, the trigger frame indicating that each of a plurality of APs are to transmit a physical (PHY) protocol data unit (PPDU) comprising a request-to-send (RTS) or multi-user (MU) RTS (MU-RTS).

公开(公告)号：US20210044333A1

公开(公告)日：2021-02-11

申请号：US17078366

申请日：2020-10-23

申请人： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Danny Alexander ,  Chen Kojokaro ,  Assaf Gurevitz ,  Ziv Avital

发明人： Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Po-Kai Huang ,  Danny Alexander ,  Chen Kojokaro ,  Assaf Gurevitz ,  Ziv Avital

IPC分类号： H04B7/024 ,  H04B7/06

摘要： An access point (AP) configured for multi-AP coordinated beamforming (CBF) and multi-AP joint transmission (JT) in an Extremely High Throughput (EHT) wireless local area network (WLAN), when operating as a master AP (AP1) in a multi-AP network, is configured to encode a null data packet announcement (NDPA) frame for multi-AP channel sounding. The NDPA is configured for transmission to a second AP (AP2) and a plurality of stations (STAs) of an EHT group. The NDPA may be encoded to have an information field indicating whether a sounding sequence type is for JT channel sounding or CBF channel sounding. The NDPA may further be encoded to include fields identifying the APs participating in the channel sounding. In these embodiments, the channel sounding sequence for JT can be reused for the channel sounding on CBF.

公开(公告)号：US20200177319A1

公开(公告)日：2020-06-04

申请号：US16784024

申请日：2020-02-06

申请人： Laurent Cariou ,  Xiaogang Chen ,  Po-Kai Huang ,  Feng Jiang ,  Thomas J. Kenney ,  Qinghua Li ,  Robert Stacey

发明人： Laurent Cariou ,  Xiaogang Chen ,  Po-Kai Huang ,  Feng Jiang ,  Thomas J. Kenney ,  Qinghua Li ,  Robert Stacey

IPC分类号： H04L1/18 ,  H04L1/00 ,  H04W80/02 ,  H04W84/12

摘要： This disclosure describes systems, methods, and devices related to an enhanced hybrid automatic repeat request (HARQ). A device may determine two or more HARQ medium access control (MAC) frames. The device may determine a difference between a first number of bits of a physical layer (PHY) codeword and a second number of bits of a first HARQ MAC frame of the two or more HARQ MAC frames. The device may generate, based on the difference, a third number of bits, wherein the first number of bits is equal to a sum of the second number of bits and the third number of bits. The device may generate an aggregated MAC frame comprising the first HARQ MAC frame, the third number of bits, and a second HARQ MAC frame of the two or more HARQ MAC frames. The device may send the aggregated MAC frame.

公开(公告)号：US20200045555A1

公开(公告)日：2020-02-06

申请号：US16543157

申请日：2019-08-16

申请人： Po-Kai Huang ,  Daniel Leiderman ,  Arik Klein ,  Laurent Cariou ,  Daniel F. Bravo ,  Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Robert J. Stacey

发明人： Po-Kai Huang ,  Daniel Leiderman ,  Arik Klein ,  Laurent Cariou ,  Daniel F. Bravo ,  Feng Jiang ,  Qinghua Li ,  Xiaogang Chen ,  Robert J. Stacey

IPC分类号： H04W16/10 ,  H04W4/06 ,  H04W72/04 ,  H04W72/12 ,  H04W84/20 ,  H04L25/02 ,  H04W74/08 ,  H04W88/08

摘要： Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. The AP may be configurable to operate as a master AP of a multi-AP group. The master AP may establish the multi-AP group by: transmitting one or more messages to advertise the multi-AP group; and exchanging signaling with one or more of the other APs of the multi-AP group. The signaling may include at least one message related to one of the other APs joining the multi-AP group. The master AP may establish the multi-AP group to enable usage of AP Trigger Frames (AP TFs) for coordination of resources to be used for downlink transmissions of the APs of the multi-AP group.

公开(公告)号：US20190281459A1

公开(公告)日：2019-09-12

申请号：US16424982

申请日：2019-05-29

申请人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

发明人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

IPC分类号： H04W12/06 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10

摘要： This disclosure describes systems, methods, and devices related to long training field (LTF) sequence security protection. A device may determine a null data packet (NDP) frame comprising one or more fields. The device may determine a first long training field (LTF) and a second LTF, the first LTF and the second LTF being associated with a first frequency band of the NDP frame, wherein time domain LTF symbols of first LTF and the second LTF are generated using different LTF sequences. The device may determine a third LTF and a fourth LTF, the third LTF and the fourth LTF being associated with the a second frequency band of the NDP frame, wherein time domain LTF symbols of third LTF and the fourth LTF are generated using different LTF sequences. The device may cause to send the NDP frame to an initiating or a responding device. The device may cause to send a location measurement report (LMR) frame to the initiating or the responding device, wherein the LMR comprises timing information associated with the first frequency band and the second frequency band.