Patent ID: 8811343

Claim:
A method of providing vehicle wireless communication, comprising: receiving hand-over-related link information which includes slot request information about slots requested by a vehicle from a roadside wireless communication device for hand-over of the vehicle, from a central control server; sending a hand-over preparation message, which includes the hand-over-related link information, to a vehicle wireless communication device connected to the vehicle; determining that the vehicle completed preparation for performance of the hand-over when a response message to the hand-over preparation message is received from the vehicle wireless communication device, allocating slots in consideration of the hand-over-related link information; and transmitting beacon frames, which include slot allocation information about the allocated slots, to the vehicle wireless communication device; wherein each of the beacon frames is individually included in at least two superframes; wherein each of the at least two superframes comprises a beacon frame period, a contention access period, a contention-free multicasting period, and a contention-free unicasting period; wherein the beacon frame period comprises: a Media Access Control (MAC) header section for indicating sequence and address information of a MAC frame; and a frame body section for indicating a Wireless Network Communication (WNC) synchronization parameter and information elements provided by the beacon frame; wherein the frame body section comprises: a synchronization parameter indication field for indicating the WNC synchronization parameter; and information indication fields for indicating the information elements provided by the beacon frame; wherein the synchronization parameter indication field comprises: a time token field for indicating time synchronization; an omni-frame length field for indicating length of an omni-frame; a beacon period length field for indicating length of the beacon frame period; a contention period length field for indicating length of the contention access period; a contention-free unicasting length field for indicating length of the contention-free unicasting period; and a contention-free multicasting length field for indicating length of the contention-free multicasting period.