DEMODULATION REFERENCE SIGNAL DESIGN FOR VEHICLE-TO-VEHICLE COMMUNICATION

    公开(公告)号:US20180048446A1

    公开(公告)日:2018-02-15

    申请号:US15662134

    申请日:2017-07-27

    CPC classification number: H04L5/0051 H04L67/12 H04W72/1284

    Abstract: Various features described herein relate to DM-RS design for a control channel and a data channel that maybe used for vehicular communications. In an aspect, a UE may determine a base DM-RS sequence associated with a control channel for V2V communication. The UE may further determine a DM-RS sequence based on the base DM-RS sequence and an identity of the UE, and transmit a plurality of DM-RS symbols within the control channel in a subframe using the DM-RS sequence. In another aspect, a UE may generate a plurality of DM-RS sequences, each DM-RS sequence maybe generated for a corresponding DM-RS symbol of a plurality of DM-RS symbols associated with a data channel for V2V communication based on a DM-RS symbol number of the corresponding DM-RS symbol. The UE may transmit the plurality of DM-RS symbols within the data channel in a subframe using the plurality of DM-RS sequences.

    SYNCHRONIZATION FOR DEVICE-TO-DEVICE POSITIONING IN WIRELESS NETWORKS
    15.
    发明申请
    SYNCHRONIZATION FOR DEVICE-TO-DEVICE POSITIONING IN WIRELESS NETWORKS 有权
    无线网络中设备到设备定位的同步

    公开(公告)号:US20170034800A1

    公开(公告)日:2017-02-02

    申请号:US14811678

    申请日:2015-07-28

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The apparatus may transmit a message in a first subset of a set of resources. The message may include a position of the apparatus and a resource ID indicating at least one symbol in a second subset of the set of resources for transmitting a sequence. The apparatus may transmit the sequence in the at least one symbol in the second subset of the set of resources identified by the resource ID, receive at least one other sequence, adjust a transmission timing based on the received at least one other sequence, and transmit, based on the adjusted transmission timing, the sequence in one or more symbols in a third subset of the set of resources.

    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。 该装置可以是UE。 该装置可以在一组资源的第一子集中发送消息。 消息可以包括装置的位置和指示用于发送序列的资源集合的第二子集中的至少一个符号的资源ID。 该装置可以在由资源ID标识的资源集合的第二子集中的至少一个符号中发送序列,接收至少一个其他序列,基于接收到的至少一个其他序列调整发送定时,并发送 基于经调整的传输定时,在资源集合的第三子集中的一个或多个符号中的序列。

    SYSTEM AND METHOD FOR RANGING-ASSISTED VEHICLE POSITIONING

    公开(公告)号:US20200304970A1

    公开(公告)日:2020-09-24

    申请号:US16894750

    申请日:2020-06-05

    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.

    SYNCHRONIZATION FOR V2X CARRIER AGGREGRATION
    20.
    发明申请

    公开(公告)号:US20190159150A1

    公开(公告)日:2019-05-23

    申请号:US16156874

    申请日:2018-10-10

    Abstract: Features of the present disclosure implementing techniques that allow the user equipment (UE) to autonomously (e.g., without the network control) manage timing synchronization of a plurality of carriers using sidelink synchronization signal (SLSS) from one or more other UEs in order to identify a synchronization source. A synchronization source associated with a frequency carrier from a set of frequency carriers may be selected according to one or more SLSS sync source selection techniques or rules. For instance, the described solution may be utilized to enable UEs to autonomously perform V2X carrier aggregation (CA). In some examples, the synchronization carrier(s) to be searched may be determined based on the SLSS capability of the UE (e.g., transmission and reception of SLSS capabilities of the UE).

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