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    • 45. 发明公开
    • DATA RETRANSMISSION METHOD, DEVICE AND SYSTEM
    • 数据重传方法,装置和系统
    • EP2869490A1
    • 2015-05-06
    • EP12882395.2
    • 2012-08-02
    • Huawei Technologies Co., Ltd.
    • FAN, ShujuMA, Xueli
    • H04L1/16
    • H04L1/1893H04B7/0417H04B7/0623H04L1/06H04L1/08H04L1/16H04L1/1671H04L1/1816H04L1/1819H04L1/1861H04L1/1867H04L1/1896
    • The present invention discloses a data retransmission method, apparatus, and system, and relates to the field of communications, so as to solve a problem that it may be difficult for a transmitter and a receiver to work normally in a case that the number of layers selected by the transmitter to use is greater than the number of layers required for retransmitting a codeword and no new data needs to be transmitted. The method includes: in a case that the number of layers that need to be occupied by a codeword to be retransmitted is smaller than the number of layers selected by a transmitter to use and no new data needs to be transmitted, determining a special codeword according to a difference between the number of layers selected by the transmitter and the number of layers that need to be occupied for retransmitting the codeword, where the number of transport blocks included in the special codeword is equal to the difference; and allocating the codeword that needs to be retransmitted and the special codeword to each transport layer through a layer mapping.
    • 本发明公开了一种数据重传方法,装置和系统,涉及通信领域,以解决发射机和接收机在层数较多的情况下难以正常工作的问题 由发射机选择使用的数量大于重传码字所需的层数,并且不需要传输新的数据。 该方法包括:在需要重传的码字需要占用的层数小于发射机选择使用的层数并且不需要传输新数据的情况下, 计算所述发射机选择的层数与为重发所述码字需要占用的层数之间的差值,其中,所述特殊码字中包含的传输块的数量等于所述差值; 并通过层映射为每个传输层分配需要重传的码字和特殊码字。
    • 47. 发明公开
    • PEER-TO-PEER WIRELESS COMMUNICATION-BASED TRANSMISSION METHOD AND DEVICE
    • AUF DRAHTLOSER同侪同志基金会ÜBERTRAGUNGSVERFAHRENUND VORRICHTUNG
    • EP2840861A1
    • 2015-02-25
    • EP12874791.2
    • 2012-04-16
    • ZTE Corporation
    • YANG, NingLU, QiuyanCHEN, Yucong
    • H04W88/00
    • H04W72/048H04L1/16H04L5/0055H04L27/20H04W8/18H04W56/0085H04W88/00
    • The disclosure discloses a transmission method and a transmission apparatus based on point-to-point wireless communication. The method includes that: a state machine of a sending-receiving terminal performs state transition according to a received training frame; and when the state machine of the sending-receiving terminal is transferred to a data frame sending state, user data is sent. According to the disclosure, the sending-receiving terminal sends a preset training frame in a synchronous linking process so as to promote the rapid linking of two peer nodes; the saved linking time is spent to send data so as to increase the throughput of the user data; due to the state transition of the state machine, a receiver can determine the arrival time of a data frame, thereby improving the stability and the reliability of the system; and moreover, the training of the training frame can ensure that a receiver decodes a first data frame successfully, so that the flow of judging whether the received data is the user data by the receiver is simplified and the efficiency is improved.
    • 本公开公开了一种基于点对点无线通信的发送方法和发送装置。 该方法包括:发送接收终端的状态机根据接收到的训练帧进行状态转换; 并且当发送接收终端的状态机被转移到数据帧发送状态时,发送用户数据。 根据本公开,发送接收终端在同步链接过程中发送预设训练帧,以促进两个对等节点的快速链接; 节省的链接时间用于发送数据,以增加用户数据的吞吐量; 由于状态机的状态转换,接收机可以确定数据帧的到达时间,从而提高系统的稳定性和可靠性; 此外,训练帧的训练可以确保接收机成功地解码第一数据帧,从而简化了接收机接收的数据是否为用户数据的流程,提高了效率。