METHODS AND SYSTEMS FOR TRANSMISSION OF ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED SYMBOLS

    公开(公告)号:EP1867085B1

    公开(公告)日:2018-09-26

    申请号:EP06721728.1

    申请日:2006-03-30

    Applicant: Apple Inc.

    CPC classification number: H04L27/2602 H04L1/0003 H04L1/0009 H04L27/2655

    Abstract: In some embodiments of the present invention there is provided a frame structure for transmitting an integer number of OFDM symbols in which some of the OFDM symbols are to be transmitted in a unicast format and some of the OFDM symbols are to be transmitted in a broadcast format. The frame structure includes partitioning of a frame into at least two portions to accommodate both unicast and broadcast modes in the frame. The frame structure is used for transmitting multiple frames in a serial manner from at least one transmitter. The unicast mode supports transmission of OFDM symbols from a single transmitter to a single receiver. The broadcast mode supports transmission of OFDM symbols from multiple transmitters to all receivers within range of the multiple transmitters. The multicast mode supports transmission of OFDM symbols from multiple transmitters to multiple receivers within range of the multiple transmitters.

Patent Agency Ranking