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    • 2. 发明授权
    • FEC code and code rate selection based on packet size
    • 基于分组大小的FEC码和码率选择
    • US08566676B2
    • 2013-10-22
    • US11943172
    • 2007-11-20
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • H03M13/00
    • H04L1/0007H04L1/0009H04L1/0021H04L1/0042H04L1/1812H04L1/1822
    • Techniques for encoding and decoding data are described. In an aspect, multiple code rates for a forward error correction (FEC) code may be supported, and a suitable code rate may be selected based on packet size. A transmitter may obtain at least one threshold to use for code rate selection, determine a packet size to use for data transmission, and select a code rate from among the multiple code rates based on the packet size and the at least one threshold. In another aspect, multiple FEC codes of different types (e.g., Turbo, LDPC, and convolutional codes) may be supported, and a suitable FEC code may be selected based on packet size. The transmitter may obtain at least one threshold to use for FEC code selection and may select an FEC code from among the multiple FEC codes based on the packet size and the at least one threshold.
    • 描述用于编码和解码数据的技术。 在一方面,可以支持用于前向纠错(FEC)码的多个码率,并且可以基于分组大小来选择合适的码率。 发射机可以获得用于码率选择的至少一个阈值,确定用于数据传输的分组大小,并且基于分组大小和至少一个阈值从多个码率中选择码率。 在另一方面,可以支持不同类型的多个FEC码(例如,Turbo,LDPC和卷积码),并且可以基于分组大小来选择合适的FEC码。 发射机可以获得用于FEC码选择的至少一个阈值,并且可以基于分组大小和至少一个阈值从多个FEC码中选择FEC码。
    • 3. 发明授权
    • Mapping of subpackets to resources in a communication system
    • 将子分组映射到通信系统中的资源
    • US08320407B2
    • 2012-11-27
    • US11968631
    • 2008-01-02
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • H04J4/00
    • H04L47/15H04L47/70
    • Techniques for transmitting data in a communication system are described. A packet may be partitioned into multiple subpackets, and each subpacket may be encoded separately. The subpackets may be mapped to resources assigned for transmission of the packet, with at least one subpacket being mapped to a subset of the assigned resources. The assigned resources may include multiple tiles, with each tile corresponding to a block of time frequency resources. The subpackets may be mapped to the tiles such that (i) the subpackets are mapped to equal number of tiles to achieve similar decoding performance, (ii) each subpacket is mapped to at least NMIN tiles, if available, to achieve a certain minimum diversity order for the subpacket, and/or (iii) each subpacket is mapped to a subset of the multiple tiles, if possible, so that the subpacket can be decoded without having to demodulate all of the tiles.
    • 描述在通信系统中传输数据的技术。 分组可以被划分成多个子分组,并且每个子分组可以被分开编码。 子分组可以被映射到分配用于分组的传输的资源,其中至少一个子分组被映射到所分配的资源的子集。 分配的资源可以包括多个瓦片,其中每个瓦片对应于时间频率资源块。 子分组可以被映射到瓦片,使得(i)子分组被映射到相等数量的分块以实现类似的解码性能,(ii)每个子分组被映射到至少NMIN分块(如果可用),以获得一定的最小分集 如果可能,每个子分组被映射到多个分块的子集,使得子分组可以被解码而不必解调所有的分块。
    • 4. 发明申请
    • MAPPING OF SUBPACKETS TO RESOURCES IN A COMMUNICATION SYSTEM
    • 将通讯系统中的资源映射到通信系统
    • US20080240159A1
    • 2008-10-02
    • US11968631
    • 2008-01-02
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • Ravi PalankiJeremy H. LinAamod KhandekarAlexei GorokhovAvneesh Agrawal
    • H04J3/24
    • H04L47/15H04L47/70
    • Techniques for transmitting data in a communication system are described. A packet may be partitioned into multiple subpackets, and each subpacket may be encoded separately. The subpackets may be mapped to resources assigned for transmission of the packet, with at least one subpacket being mapped to a subset of the assigned resources. The assigned resources may include multiple tiles, with each tile corresponding to a block of time frequency resources. The subpackets may be mapped to the tiles such that (i) the subpackets are mapped to equal number of tiles to achieve similar decoding performance, (ii) each subpacket is mapped to at least NMIN tiles, if available, to achieve a certain minimum diversity order for the subpacket, and/or (iii) each subpacket is mapped to a subset of the multiple tiles, if possible, so that the subpacket can be decoded without having to demodulate all of the tiles.
    • 描述用于在通信系统中发送数据的技术。 分组可以被划分成多个子分组,并且每个子分组可以被分开编码。 子分组可以被映射到分配用于分组的传输的资源,其中至少一个子分组被映射到所分配的资源的子集。 分配的资源可以包括多个瓦片,其中每个瓦片对应于时间频率资源块。 子分组可以被映射到瓦片,使得(i)子分组被映射到相等数量的分块以实现类似的解码性能,(ii)每个子分组被映射到至少N分钟分块,如果 为了实现子包的一定的最小分集顺序,和/或(iii)每个子包被映射到多个片的子集,如果可能的话,使得子包可被解码而不必解调所有的片。