发明授权
- 专利标题： Methods and systems for transmission of orthogonal frequency division multiplexed symbols
- 专利标题（中）： 用于传输正交频分复用符号的方法和系统
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申请号： US11887115申请日： 2006-03-30
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公开(公告)号： US07813261B2公开(公告)日： 2010-10-12
- 发明人: Jianglei Ma , Hang Zhang , Wen Tong , Peiying Zhu , Ming Jia
- 申请人： Jianglei Ma , Hang Zhang , Wen Tong , Peiying Zhu , Ming Jia
- 申请人地址： CA St. Laurent, Quebec
- 专利权人： Nortel Networks Limited
- 当前专利权人： Nortel Networks Limited
- 当前专利权人地址： CA St. Laurent, Quebec
- 国际申请： PCT/CA2006/000465 WO 20060330
- 国际公布： WO2006/102746 WO 20061005
- 主分类号： H04J11/00
- IPC分类号： H04J11/00 ; H04J3/26 ; H04H20/71 ; H04L23/02
摘要：
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.
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