V2X communication apparatus and method for transmitting and receiving V2X message therefor

    公开(公告)号:US11304036B2

    公开(公告)日:2022-04-12

    申请号:US16606184

    申请日:2017-12-29

    Abstract: A method for receiving a V2X message by a V2X communication apparatus is disclosed. The method for receiving a V2X message may include receiving a V2V message including Cooperative Adaptive Cruise Control (CACC) information from at least one CACC vehicle, and the CACC information includes CACC String ID (CSID) information for identifying a CACC string to which the CACC vehicle is belonged and string length management information used for managing a string length of the CACC string, obtaining the CSID information and the string length management information from the V2V message; and setting a value of the string length management information of the subject vehicle based on the CSID information and the string length management information. Here, the string length management information may include at least one of Order In String (OIS) information indicating a current order of the CACC vehicle in the CACC string or CACC String Length (CSL) information indicating a length of the CASS string.

    METHOD AND APPARATUS FOR CONTROLLING MULTI-CHANNEL ACCESS

    公开(公告)号:US20220061093A1

    公开(公告)日:2022-02-24

    申请号:US17275771

    申请日:2018-09-20

    Abstract: A multi-channel access control method of a V2X communication device is disclosed. The multi-channel access control method of a V2X communication device comprises the steps of: determining a multi-channel access interval for a service channel; and accessing a multi-channel on the basis of a synchronization interval and the multi-channel access interval.

    V2X communication device, and its message transmission and reception method for V2X communication device

    公开(公告)号:US11259152B2

    公开(公告)日:2022-02-22

    申请号:US16768984

    申请日:2017-12-29

    Abstract: A method by which a V2X communication device receives an ITS message is disclosed. The ITS message reception method for the V2X communication device can comprise the steps of: accessing a control channel (CCH); receiving a first ITS message including EAS information from the CCH; and acquiring the EAS information from the first ITS message, wherein the first ITS message can include a rich media information field including information on rich media related with the EAS information, and the rich media information field can include transmission type information indicating a data transmission type of the rich media and channel information indicating an ITS channel through which data of the rich media is transmitted.

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