CARRIER-PHASE POSITIONING IN CELLULAR NETWORKS

    公开(公告)号:WO2019231764A1

    公开(公告)日:2019-12-05

    申请号:PCT/US2019/033339

    申请日:2019-05-21

    Abstract: A method for position determination based on carrier-phase measurements is disclosed. The method comprises receiving one or more downlink signals transmitted from a base station (BS) during a downlink period (410), wherein the downlink signals are modulated using a downlink carrier wave, measuring, during the downlink period, a first carrier phase associated with the downlink carrier wave (430), estimating, during an uplink period subsequent to the downlink period, an integer ambiguity (IA) change (470), and measuring, during a later downlink period subsequent to the uplink period, a second carrier phase based on the resolved first carrier phase and the estimated IA change (490).

    VEHICLE RANGING AND POSITIONING
    2.
    发明申请

    公开(公告)号:WO2019140234A1

    公开(公告)日:2019-07-18

    申请号:PCT/US2019/013253

    申请日:2019-01-11

    Abstract: Methods, systems, and devices for ranging are described. A multi-phase distributed ranging technique includes transmitting and receiving vehicle information messages during a first time interval, where the vehicle information messages include at least a vehicle identifier and resource information. The multi-phase technique further includes transmitting and receiving ranging signals during a second time interval, and determining times of arrival of received ranging signals. A centralized ranging technique includes receiving resource assignments from an access point, transmitting ranging signals according to the resource assignments, and determining times of arrival of received ranging signals.

    SYSTEM AND METHOD FOR RANGING-ASSISTED VEHICLE POSITIONING

    公开(公告)号:WO2019133495A1

    公开(公告)日:2019-07-04

    申请号:PCT/US2018/067145

    申请日:2018-12-21

    Abstract: Aspects of the present disclosure are directed to device-to-device (D2D) and, more particularly, vehicle-to-vehicle (V2V) communication in which an efficient ranging protocol allows efficient ranging-assisted vehicle positioning. A vehicle transmits a first slot ID in a first control period, to indicate a first time slot for transmitting a first ranging signal in a ranging cycle including a plurality of time slots. The vehicle transmits the first ranging signal in the first time slot in the ranging cycle. From a second vehicle, the first vehicle receives a second ranging signal in a second time slot that is different from the first time slot in the ranging cycle. The first vehicle determines a first time-of-arrival (ToA) of the second ranging signal when received by the first vehicle, and transmits the first ToA in a second control period.

    SYSTEM AND METHOD THAT FACILITATES BEAMFORMING FROM A VEHICLE USER EQUIPMENT

    公开(公告)号:WO2018053355A3

    公开(公告)日:2018-03-22

    申请号:PCT/US2017/051915

    申请日:2017-09-15

    Abstract: Aspects of the disclosure relate to beamforming from a vehicle user equipment (UE). In a first aspect, a beamform vector is selected based on beamform data received from a scheduling entity. Here, the beamform data corresponds to a path between a vehicle UE and a base station or another vehicle, and the beamform vector includes respective phases and amplitudes corresponding to each of a plurality of antennas of the vehicle UE. A beam is then generated in accordance with the beamform vector. In another aspect, a database of beamform data is maintained, and beamform data from the database is retrieved. Here, the retrieved beamform data corresponds to a particular location pair that includes a first location associated with a location of a vehicle UE, and a second location associated with a location of a base station or another vehicle. The beamform data is then transmitted to the vehicle UE.

    SYNCHRONIZED RADIO TRANSMISSION FOR VEHICLE PLATOONING
    8.
    发明申请
    SYNCHRONIZED RADIO TRANSMISSION FOR VEHICLE PLATOONING 审中-公开
    同步无线电传输用于车辆广播

    公开(公告)号:WO2018052560A1

    公开(公告)日:2018-03-22

    申请号:PCT/US2017/045455

    申请日:2017-08-04

    Abstract: Wireless communications systems and methods related to transmission of platoon information. A first vehicle in a vehicle platoon obtains a first radio resource spanning a frequency channel and a time period for synchronous transmission with at least a second vehicle in the vehicle platoon. The first vehicle transmits, synchronously with at least the second vehicle, information associated with the vehicle platoon in the frequency channel and the time period of the first radio resource. The first vehicle may obtain the first radio resource by requesting a transmission request from a wireless communication device and receiving a transmission grant indicating the first radio resource. Alternatively, the first vehicle may obtain the first radio resource by selecting the first radio resource based on at least one of a sensing report or a resource reservation received from the second vehicle.

    Abstract translation: 与排队信息传输有关的无线通信系统和方法。 车辆排中的第一车辆获得跨越频率信道的第一无线电资源和用于与车辆排中的至少第二车辆同步传输的时间段。 第一车辆与至少第二车辆同步地发送与频道中的车辆排有关的信息和第一无线电资源的时间段。 第一车辆可以通过向无线通信设备请求传输请求并且接收指示第一无线电资源的传输许可来获得第一无线电资源。 或者,第一车辆可以通过基于从第二车辆接收到的感测报告或资源预定中的至少一个来选择第一无线电资源来获得第一无线电资源。

    TECHNIQUES FOR REPORTING BUFFER STATUS IN WIRELESS COMMUNICATIONS
    9.
    发明申请
    TECHNIQUES FOR REPORTING BUFFER STATUS IN WIRELESS COMMUNICATIONS 审中-公开
    在无线通信中报告缓冲区状态的技术

    公开(公告)号:WO2017004341A1

    公开(公告)日:2017-01-05

    申请号:PCT/US2016/040328

    申请日:2016-06-30

    Abstract: Aspects described herein generally relate to communicating buffer status reports (BSR) in wireless communications. A BSR can be generated at a device indicating a size of each of a plurality of messages stored in a buffer of the device for communicating from the device to one or more other devices. The BSR can be transmitted to a base station to request resources for communicating one or more of the plurality of messages to the one or more other devices.

    Abstract translation: 本文描述的方面通常涉及在无线通信中传送缓冲器状态报告(BSR)。 BSR可以在设备处产生,指示存储在设备的缓冲器中的多个消息中的每一个的大小,用于从设备到一个或多个其他设备进行通信。 BSR可以被发送到基站以请求用于将多个消息中的一个或多个消息传送到一个或多个其他设备的资源。

    METHODS AND APPARATUS FOR ENABLING COMMUNICATION-ID CID REUSE IN LTE BASED DEVICE-TO-DEVICE D2D COMMUNICATIONS
    10.
    发明申请
    METHODS AND APPARATUS FOR ENABLING COMMUNICATION-ID CID REUSE IN LTE BASED DEVICE-TO-DEVICE D2D COMMUNICATIONS 审中-公开
    在基于LTE的设备到设备D2D通信中实现通信ID CID重用的方法和装置

    公开(公告)号:WO2014078718A1

    公开(公告)日:2014-05-22

    申请号:PCT/US2013/070395

    申请日:2013-11-15

    CPC classification number: H04W76/11 H04W74/002 H04W76/14

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with minimizing device-to-device D2D ready-to-send/clear-to-send RTS/CTS signaling overhead resource usage. In one example, a WAN entity, e.g. eNB, is equipped to receive one or more channel gain values from a plurality of UEs, determine that a connection identification CID can be reused by multiple D2D links based on the received one or more channel gain values, and transmit information indicating that the CID may be reused. In another example, a UE is equipped to measure a direct power signals and an inverse power echoes on a CID used for a link formed between a third and fourth UE, and determine that the CID may potentially be reused by a link formed with a second UE for D2D RTS/CTS signaling, based at least in part on the measured direct power signals, measured the inverse power echoes, and a signal-to-interference ratio SIR threshold.

    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,其中最小化设备到设备D2D即时发送/清除发送RTS / CTS信令开销资源使用。 在一个示例中,WAN实体,例如。 eNB被配备为从多个UE接收一个或多个信道增益值,基于所接收的一个或多个信道增益值,确定连接标识CID可以由多个D2D链路重用,并且发送指示CID可以 重复使用 在另一示例中,UE被配备用于测量在用于在第三和第四UE之间形成的链路的CID上的直接功率信号和反功率回波,并且确定CID可能潜在地被形成有第二个 至少部分地基于所测量的直接功率信号,测量逆功率回波和信号干扰比SIR阈值的用于D2D RTS / CTS信令的UE。

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