FIRST ARRIVAL PATH BASED MULTIPATH MITIGATION FOR ANGLE OF ARRIVAL ESTIMATION
    31.
    发明申请
    FIRST ARRIVAL PATH BASED MULTIPATH MITIGATION FOR ANGLE OF ARRIVAL ESTIMATION 审中-公开
    第一个到达路径的多径估计方法

    公开(公告)号:WO2016144477A1

    公开(公告)日:2016-09-15

    申请号:PCT/US2016/017619

    申请日:2016-02-11

    CPC classification number: H04W4/023 G01S3/043 G01S3/48

    Abstract: A system and method are disclosed that may provide an accurate estimate of the angle of arrival (AoA) of a wireless signal received by a device. The received wireless signal may include a plurality of signal components (702) associated with a number of different arrival paths. The device may generate a weighted signal, including a plurality of weighted signal components, by multiplying the plurality of signal components of the received wireless signal with a set of weighting values (704). The device may identify one or more of the weighted signal components associated with a first arrival path to the device (706), determine phase information of the one or more identified weighted signal components (708), and then determine the angle of arrival based, at least in part, on the determined phase information (710).

    Abstract translation: 公开了可以提供由设备接收的无线信号的到达角(AoA)的精确估计的系统和方法。 所接收的无线信号可以包括与多个不同到达路径相关联的多个信号分量(702)。 通过将所接收的无线信号的多个信号分量与一组加权值相乘,可以产生包括多个加权信号分量的加权信号(704)。 设备可以识别与到设备(706)的第一到达路径相关联的一个或多个加权信号分量,确定一个或多个识别的加权信号分量(708)的相位信息,然后确定基于到达的角度, 至少部分地基于所确定的相位信息(710)。

    RELATIVE CLOCK DRIFT CALIBRATION FOR CHANNEL STITCHING
    32.
    发明申请
    RELATIVE CLOCK DRIFT CALIBRATION FOR CHANNEL STITCHING 审中-公开
    相关时钟标签用于通道缝合

    公开(公告)号:WO2016073140A1

    公开(公告)日:2016-05-12

    申请号:PCT/US2015/055092

    申请日:2015-10-12

    Abstract: Techniques and systems described herein provide for improved clock drift calibration of two or more clocks of two or more wireless devices. According to one example method, a first packet is received at a first wireless device from a second wireless device sent at a first time. The method may also include determining a first time-of-arrival estimate for the first packet. The method may further include receiving, at the first wireless device, a second packet from the second wireless device sent at a second time. The method may also include determining a second time-of-arrival estimate for the second packet and determining a relative clock drift between the first wireless device and the second wireless device based at least in part on the first time-of-arrival estimate and the second time-of-arrival estimate.

    Abstract translation: 本文描述的技术和系统提供两个或多个无线设备的两个或更多个时钟的改进的时钟漂移校准。 根据一个示例性方法,在第一无线设备处从第一时间发送的第二无线设备接收第一分组。 该方法还可以包括确定第一分组的第一到达时间到达估计。 该方法还可以包括在第一无线设备处接收来自第二无线设备的第二分组。 该方法还可以包括:确定第二分组的第二到达时间估计,并且至少部分地基于第一到达时间估计和第一时间到达估计确定第一无线设备与第二无线设备之间的相对时钟漂移, 第二次到达时间估计。

    SELECTIVE FORWARDING IN MOBILE CONTENT DELIVERY NETWORKS
    33.
    发明申请
    SELECTIVE FORWARDING IN MOBILE CONTENT DELIVERY NETWORKS 审中-公开
    移动内容传送网络中的选择性转发

    公开(公告)号:WO2016039907A2

    公开(公告)日:2016-03-17

    申请号:PCT/US2015/044445

    申请日:2015-08-10

    Abstract: Methods, systems, and devices are described for selecting data packets for forwarding in a vehicle network. In one example, a method includes receiving a first data packet at a first vehicle in a vehicular network and determining a geographic destination of the received first data packet. The method may also include forwarding the first data packet based at least in part on the geographic destination and a current wireless capacity of the vehicle network.

    Abstract translation: 描述了用于选择用于在车辆网络中转发的数据分组的方法,系统和设备。 在一个示例中,一种方法包括在车载网络中的第一车辆处接收第一数据分组并且确定所接收的第一数据分组的地理目的地。 该方法还可以包括至少部分地基于地理目的地和车辆网络的当前无线容量来转发第一数据分组。

    TCP ENHANCEMENT WITH LIMITED LICENSED CHANNEL USAGE FOR WIRELESS NETWORKS
    34.
    发明申请
    TCP ENHANCEMENT WITH LIMITED LICENSED CHANNEL USAGE FOR WIRELESS NETWORKS 审中-公开
    TCP有限公司授权无线网络使用的通道

    公开(公告)号:WO2015094751A1

    公开(公告)日:2015-06-25

    申请号:PCT/US2014/069044

    申请日:2014-12-08

    Abstract: Methods, systems, and devices are described for operating a communications system using both licensed and unlicensed frequency bands. Unlicensed spectrum may be used as a primary band for transmitting data packets and TCP may be implemented for selectively transmitting (e.g., retransmitting) a subset of the transmitted data packets via licensed spectrum. Selective transmission of the subset of data packets via licensed spectrum may be based on a transmitter failing to receive and acknowledgment (ACK) message in response to one or more transmitted data packets on the unlicensed spectrum. Selective retransmission may be based on a transmitter detecting interference and/or it may be based on a receiver reporting information about channel conditions. In some cases, a transmitter may simultaneously receive channel condition information for both licensed and unlicensed spectrum. In other cases, unlicensed spectrum may be utilized for data packet transmission and licensed spectrum may be utilized for ACK messages.

    Abstract translation: 描述了用于操作使用许可和非许可频带的通信系统的方法,系统和设备。 未许可的频谱可以用作用于传输数据分组的主频带,并且可以实现TCP以便经由许可频谱选择性地发送(例如,重传)所发送的数据分组的子集。 通过许可频谱选择性地传输数据分组的子集可以基于发射机响应于未授权频谱上的一个或多个传输的数据分组而不能接收和确认(ACK)消息。 选择性重发可以基于发射机检测干扰和/或其可以基于接收者报告关于信道状况的信息。 在某些情况下,发射机可以同时接收许可和非许可频谱的信道条件信息。 在其他情况下,无许可频谱可用于数据分组传输,并且许可频谱可用于ACK消息。

    LOCATION BASED USE OF DEDICATED SHORT RANGE COMMUNICATIONS, DSRC, SPECTRUM
    35.
    发明申请
    LOCATION BASED USE OF DEDICATED SHORT RANGE COMMUNICATIONS, DSRC, SPECTRUM 审中-公开
    基于专用短距离通信的位置使用,DSRC,SPECTRUM

    公开(公告)号:WO2014182487A1

    公开(公告)日:2014-11-13

    申请号:PCT/US2014/035646

    申请日:2014-04-28

    Abstract: Using location information of a multi-mode device (135-e) 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 (705, 715). The multi-mode device is operating outside of the DSRC spectrum. The current location information is used to determine (720) whether the multi-mode device is located outside of geographical region (e.g. comprising a predetermined distance to a road) 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 (730, 735).

    Abstract translation: 使用多模式设备(135-e)的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。 确定多模式设备的当前位置信息(705,715)。 多模式设备在DSRC频谱之外运行。 当前位置信息用于确定(720)多模式设备是否位于归因于DSRC传输的地理区域外(例如,包括到道路的预定距离)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(730,735)的传输。

    OPPORTUNISTIC INTERFERENCE ALIGNMENT FOR MULTI-CELL MULTI-USER UPLINK
    36.
    发明申请
    OPPORTUNISTIC INTERFERENCE ALIGNMENT FOR MULTI-CELL MULTI-USER UPLINK 审中-公开
    多单元多用户上行链路的机会干扰对齐

    公开(公告)号:WO2014116479A1

    公开(公告)日:2014-07-31

    申请号:PCT/US2014/011609

    申请日:2014-01-15

    CPC classification number: H04W72/082 H04B7/0404 H04B7/0413 H04B7/0617

    Abstract: A UE receives information indicating a receive direction vector for a serving BS and a set of receive direction vectors for at least one interfering BS. The UE determines a channel between the UE and the serving BS and a set of channels between the UE and each of the at least one interfering BS. The UE determines a transmit direction vector to apply to modulated symbols for mapping to a set of resource blocks for an uplink transmission based on the channel, the set of channels, the receive direction vector, and the set of receive direction vectors. The UE determines an interference caused to the at least one interfering BS by the uplink transmission based on the transmit direction vector, the set of channels, and the set of receive direction vectors. The UE transmits information indicating the interference to the serving BS.

    Abstract translation: UE接收指示用于服务BS的接收方向向量的信息和用于至少一个干扰BS的一组接收方向向量。 UE确定UE与服务BS之间的信道以及UE与至少一个干扰BS中的每一个之间的一组信道。 UE基于信道,信道集合,接收方向向量和接收方向向量集合,确定应用于调制符号的发射方向矢量以映射到上行链路传输的一组资源块。 UE基于发送方向向量,信道集合和接收方向向量集,确定通过上行链路传输对至少一个干扰BS造成的干扰。 UE向服务BS发送指示干扰的信息。

    IN-MOTION INITIALIZATION OF ACCELEROMETER FOR ACCURATE VEHICLE POSITIONING

    公开(公告)号:WO2020146128A1

    公开(公告)日:2020-07-16

    申请号:PCT/US2019/068020

    申请日:2019-12-20

    Abstract: Techniques provided herein are directed toward addressing these and other issues by providing robust means for initializing an accelerometer that can take place even while a vehicle is in motion. Specifically, linear acceleration and velocity data can be estimated from wheel speeds, and angular velocity can be estimated with a gyroscope. The vehicle's acceleration can then be computed from these estimates, and subtracted from a total acceleration measured by the accelerometer to determine gravitational acceleration, which can then be accounted for in subsequent measurements taken by the accelerometer. A vehicle velocity may also be determined based on the vehicle's estimated angular velocity and linear velocity. Embodiments may also employ techniques for translating measurements taken in one coordinate frame to another coordinate frame for estimate determination and/or outlier compensation.

    ROBUST ASSOCIATION OF TRAFFIC SIGNS WITH A MAP

    公开(公告)号:WO2020146039A1

    公开(公告)日:2020-07-16

    申请号:PCT/US2019/059748

    申请日:2019-11-05

    Abstract: Techniques provide for accurately matching traffic signs observed in camera images with traffic sign data from 3D maps, which can allow for error correction in a position estimate of a vehicle based on differences in the location of the observed traffic sign and the location of the traffic sign based on 3D map data. Embodiments include preparing the data to allow for comparison between observed and map traffic sign data, conducting the comparison in a 2D frame (e.g., in the frame of the camera image) to make an initial order of proximity of candidate traffic signs in the map traffic sign data to the observed traffic sign, conducting a second comparison in a 3D frame (e.g. the frame of the 3D map) to determine an association based on the closest match, and using the association to perform error correction.

    REPAIR OF CARRIER-PHASE CYCLE SLIPS USING DISPLACEMENT DATA
    40.
    发明申请
    REPAIR OF CARRIER-PHASE CYCLE SLIPS USING DISPLACEMENT DATA 审中-公开
    用位移数据修复载波相位周期

    公开(公告)号:WO2018052740A1

    公开(公告)日:2018-03-22

    申请号:PCT/US2017/049851

    申请日:2017-09-01

    CPC classification number: G01S19/22 G01S19/26 G01S19/29 G01S19/44

    Abstract: The disclosure generally relates to position sensors, and more particularly to repair of carrier-phase cycle slips using displacement data. An apparatus for use in position sensing may include a displacement sensor, a positioning signal receiver, a memory, and a processor coupled to the displacement sensor, the positioning signal receiver, and the memory. The processor and memory may be configured to processor and memory are configured to detect a loss of lock of a first carrier tracking loop associated with the first set of carrier-phase measurements, wherein the first carrier tracking loop is associated with a first integer ambiguity, estimate, based on the displacement data, an ambiguity increment to the first integer ambiguity subsequent to the detected loss of lock, and resolve a second integer ambiguity associated with the second set of positioning signals based on the first integer ambiguity and the estimated ambiguity increment.

    Abstract translation: 本公开总体上涉及位置传感器,并且更具体地涉及使用位移数据修复载波相位滑移。 用于位置感测的设备可以包括位移传感器,定位信号接收器,存储器以及耦合到位移传感器,定位信号接收器和存储器的处理器。 处理器和存储器可以被配置为处理器和存储器被配置为检测与第一载波相位测量集合相关联的第一载波跟踪环路的锁定丢失,其中第一载波跟踪环路与第一整数模糊度相关联, 基于位移数据估计在检测到的锁定失锁之后对第一整数模糊度的模糊度增量,并且基于第一整数模糊度和估计的模糊度增量来解析与第二组定位信号相关联的第二整数模糊度。

Patent Agency Ranking