公开(公告)号：US20150029873A1

公开(公告)日：2015-01-29

申请号：US13951115

申请日：2013-07-25

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Venkatesan Nallampatti Ekambaram ,  Xinzhou Wu

IPC: H04W4/02 ,  H04W56/00 ,  H04W24/10

CPC classification number: H04W4/023 ,  G01S5/021 ,  G01S5/0289 ,  G01S5/14 ,  H04W24/10 ,  H04W56/001

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a first message from a first wireless communication device and a second message from a second wireless communication device, obtains information associated with a first processing delay with respect to the first message and a second processing delay with respect to the second message, and transmits a third message comprising an indication of the information associated with the first and second processing delays.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品。 该设备从第一无线通信设备接收第一消息并从第二无线通信设备接收第二消息，获得与第一消息相关联的第一处理延迟和关于第二消息的第二处理延迟的信息，以及 发送包括与第一和第二处理延迟相关联的信息的指示的第三消息。

公开(公告)号：US20140335884A1

公开(公告)日：2014-11-13

申请号：US13889089

申请日：2013-05-07

Applicant: QUALCOMM INCORPORATED

Inventor： Jubin Jose ,  Ying Wang ,  Junyi Li ,  Sundar Subramanian ,  Xinzhou Wu

IPC: H04W64/00

CPC classification number: H04W64/00 ,  G01S5/00 ,  G01S5/0263 ,  G01S19/11 ,  G01S19/48 ,  H04L1/00 ,  H04W72/00 ,  H04W88/06

Abstract: Methods, systems, and devices are described for using location information to determine whether to use at least a portion of a dedicated short range communications (DSRC) spectrum. Current location information of a multi-mode device is determined. The multi-mode device is operating outside of the DSRC spectrum. The current location information is used to determine whether the multi-mode device is located outside of geographical region attributed to DSRC transmissions. Upon determining that the multi-mode device is located outside of the geographical region, at least a portion of the DSRC spectrum is used for transmissions by the multi-mode device.

Abstract translation: 描述了使用位置信息来确定是否使用专用短距离通信（DSRC）频谱的至少一部分的方法，系统和设备。 确定多模式设备的当前位置信息。 多模式设备在DSRC频谱之外运行。 当前位置信息用于确定多模式设备是否位于归因于DSRC传输的地理区域之外。 在确定多模式设备位于地理区域之外时，DSRC频谱的至少一部分被用于多模式设备的传输。

公开(公告)号：US20140328241A1

公开(公告)日：2014-11-06

申请号：US13875652

申请日：2013-05-02

Applicant: QUALCOMM INCORPORATED

Inventor： Sundar Subramanian ,  Sichao Yang ,  Xinzhou Wu ,  Junyi Li

IPC: H04W72/00

CPC classification number: H04W72/005 ,  H04W4/046 ,  H04W4/08

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with communication of safety messages by a device on behalf of other devices in a group. In an example, a communications device is equipped to receive attribute information from one or more UEs in a group of UEs, generate group attribute information based on the received attribute information, and broadcast the group attribute information on behalf of the group of UEs. In such an aspect, the communications device is a member of the group of UEs, and the leader of the group of UEs. In another example, a communications device is equipped to transmit, by a UE, attribute information to a leader UE of a group of UEs, and prohibit broadcasting at least a portion of the attribute information. In such an aspect, the communications device is a member of the group of UEs.

Abstract translation: 结合通过设备代表组中的其他设备的安全消息的通信来提供用于无线通信的方法，设备和计算机程序产品。 在一个示例中，通信设备被配备为从一组UE中的一个或多个UE接收属性信息，基于接收到的属性信息生成组属性信息，并且代表该组UE广播组属性信息。 在这种方面，通信设备是UE组的成员，以及UE组的领导者。 在另一示例中，通信设备被配备为由UE将属性信息发送到一组UE的领导UE，并且禁止广播至少一部分属性信息。 在这种方面，通信设备是UE组的成员。

公开(公告)号：US20140045556A1

公开(公告)日：2014-02-13

申请号：US14050088

申请日：2013-10-09

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Sichao Yang ,  Xinzhou Wu ,  Junyi Ll

IPC: H04W52/02

CPC classification number: H04W52/0251 ,  B61L15/0027 ,  B61L25/025 ,  B61L29/246 ,  B61L29/28 ,  B61L2205/04 ,  G08G1/087 ,  G08G1/093 ,  G08G1/163 ,  H04W4/02 ,  H04W4/023 ,  H04W4/046 ,  H04W4/80 ,  H04W72/005 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Safety message monitoring operations and/or safety message transmission operations are controlled for a mobile wireless communications device. The periodicity with regard to safety message monitoring and/or safety message transmissions is varied based on the environment of the mobile wireless device. The transmission power level with regard to safety message transmissions is varied based on the environment of the mobile wireless device. In some embodiments, safety message monitoring and transmission operations are disabled when the mobile device is determined to be inside a building or inside a vehicle. In some embodiments, safety message monitoring rate and safety message transmission rate is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic. In some embodiments, safety message transmission power level is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic.

Abstract translation: 控制移动无线通信设备的安全消息监视操作和/或安全消息传输操作。 基于移动无线设备的环境来改变关于安全消息监视和/或安全消息传输的周期性。 关于安全消息传输的传输功率电平根据移动无线设备的环境而变化。 在一些实施例中，当确定移动设备在建筑物内或车辆内部时，安全消息监视和传输操作被禁用。 在一些实施例中，安全消息监视速率和安全消息传输速率作为与车辆交通的接近度和/或检测到的车辆交通的水平的函数而变化。 在一些实施例中，安全消息传输功率电平作为与车辆交通的接近度和/或检测到的车辆交通的水平而变化。

公开(公告)号：US11005635B2

公开(公告)日：2021-05-11

申请号：US14861604

申请日：2015-09-22

Applicant: QUALCOMM Incorporated

Inventor： Shrinivas Kudekar ,  Thomas Joseph Richardson ,  Xinzhou Wu ,  Junyi Li

IPC: H04L5/00 ,  H04L1/18 ,  H04L1/00

Abstract: Methods, systems, and devices are described for wireless communication. A transmitter may receive feedback that a station failed to decode a packet sent over a first channel, and the transmitter may determine to re-send the packet or to send parity bits over the first channel or over a second channel to assist in decoding the failed packet. The first channel may be in an unlicensed radio frequency spectrum, and the second channel may be in a licensed radio frequency spectrum and may have a higher reliability level compared to the first channel. The transmitter may determine a first channel degradation level, which may be based on a signal-to-noise ratio received from the station, and may determine an amount of parity bits to send based on the degradation. The transmitter may determine the reliability level of each channel, which may be based on a channel quality indicator.

公开(公告)号：US10536805B2

公开(公告)日：2020-01-14

申请号：US16200390

申请日：2018-11-26

Applicant: QUALCOMM Incorporated

Inventor： Venkatesan Nallampatti Ekambaram ,  Urs Niesen ,  Jubin Jose ,  Xinzhou Wu

IPC: H04W4/02 ,  H04W24/08 ,  H04W28/02 ,  H04W64/00 ,  G01S7/40 ,  G01S13/74 ,  H04W4/40

Abstract: A range between a first wireless device and a second wireless device is estimated using a first mechanism based on messages transmitted over a first communication channel. The first communication channel is associated with a first radio access technology capability of the wireless devices. One or more metrics indicative of an accuracy of the range estimates provided by the first mechanism are obtained. A second mechanism to estimate a range between the first wireless device and the second wireless device may be implemented in favor of the first mechanism when the metric fails to satisfy a criterion. The second mechanism is based on unicast messages transmitted over a second communication channel. The second communication channel is associated with a second radio access technology capability of the wireless devices and may be the same as, or different from, the first communication channel.

公开(公告)号：US10506990B2

公开(公告)日：2019-12-17

申请号：US15261561

申请日：2016-09-09

Applicant: QUALCOMM Incorporated

Inventor： Jin Won Lee ,  Xinzhou Wu ,  Rashid Ahmed Akbar Attar ,  Feng Han

IPC: A61B5/00 ,  A61B5/11 ,  G08B21/04 ,  G16H50/20 ,  G16H40/63 ,  G16H40/67 ,  G16H50/30 ,  G16H20/30

Abstract: Aspects of the subject matter described in this disclosure can be implemented in a fall detection device and method. One or more motion sensors can access a user's acceleration data. The acceleration data can be segmented using a segmentation algorithm to identify a potential fall event. The segmentation algorithm can determine a cumulative sum of the acceleration data, where the cumulative sum is based on acceleration values being greater than or less than an acceleration threshold value, and a potential fall event can be identified where the cumulative sum is greater than a cumulative sum threshold value. Statistical features can be extracted from the segmented acceleration data and aggregated, and a determination can be made as to whether the potential fall event is a fall event based at least in part on the statistical features.

公开(公告)号：US10132933B2

公开(公告)日：2018-11-20

申请号：US15014004

申请日：2016-02-02

Applicant: QUALCOMM Incorporated

Inventor： Venkatesan Nallampatti Ekambaram ,  Jubin Jose ,  Urs Niesen ,  Xinzhou Wu ,  Lionel Jacques Garin

IPC: G01S19/53 ,  G01C21/16 ,  G01S19/42 ,  G01S19/52 ,  G01S11/12 ,  G01S19/47 ,  G01S5/16

Abstract: A method for aligning visual-inertial odometry (VIO) and satellite positioning system (SPS) reference frames includes obtaining a plurality of range-rate measurements of a mobile platform from an SPS. The range-rate measurements are with respect to a global reference frame of the SPS. The method also includes obtaining a plurality of VIO velocity measurements of the mobile platform from a VIO system. The VIO velocity measurements are with respect to a local reference frame of the VIO system. At least one orientation parameter is then determined to align the local reference frame with the global reference frame based on the range-rate measurements and the VIO velocity measurements.

公开(公告)号：US20180116001A1

公开(公告)日：2018-04-26

申请号：US15837803

申请日：2017-12-11

Applicant: QUALCOMM Incorporated

Inventor： Lei Zhang ,  Chong Li ,  Xinzhou Wu ,  Junyi Li

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/12 ,  H04W16/14 ,  H04L5/00

CPC classification number: H04W74/0866 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0091 ,  H04W16/14 ,  H04W72/1215 ,  H04W74/004 ,  H04W74/0808

Abstract: Methods, systems, and devices are described for techniques for downlink (DL) scheduling and uplink (UL) scheduling in a shared radio frequency (RF)spectrum band. In some aspects, a wireless communication device may receive an UL data transmission grant associated with a channel of shared RF spectrum band. The wireless communication device may perform a channel readiness procedure associated with the channel. The wireless communication device may also transmit channel readiness information based at least in part on the channel readiness procedure to a base station. The channel readiness information may be transmitted via an uplink channel of a licensed RF spectrum band different from the shared RF band. In other aspects, a base station may schedule a data transmission on one or more channels of a shared RF spectrum band. The base station may transmit a data transmission grant for the scheduled data transmission to a wireless communication device.

公开(公告)号：US09939521B2

公开(公告)日：2018-04-10

申请号：US14593864

申请日：2015-01-09

Applicant: QUALCOMM Incorporated

Inventor： Jubin Jose ,  Xinzhou Wu ,  Thomas Joseph Richardson

IPC: H04W52/54 ,  G01S11/06 ,  H04L27/26 ,  H04W52/32 ,  H04B17/27 ,  H04W52/16

CPC classification number: G01S11/06 ,  H04B17/27 ,  H04L27/26 ,  H04W52/16 ,  H04W52/325 ,  H04W52/54

Abstract: Provided are apparatus and methods for ranging between a plurality of wireless devices. An exemplary method includes, at a first wireless device, transmitting a primary portion symbol comprising a first packet and transmitting a secondary portion symbol. The secondary portion symbol is transmitted simultaneously at a lower transmit power than the primary portion symbol, and the secondary portion symbol comprises a second packet identical to the first packet. The primary portion symbol can be transmitted in a first channel having a substantially 20 MHZ bandwidth and the secondary portion can be transmitted in a second channel having a substantially 20 MHZ bandwidth. The first and second channels are substantially adjacent in frequency. After transmitting the primary portion symbol, for example, a high-throughput long-training-field symbol or a very-high-throughput long-training-field symbol can be repetitively transmitted. This exemplary method enhances time-of-arrival estimation accuracy, minimizes decoding bottlenecking, and maximizes wireless device range.