公开(公告)号：US20170063588A1

公开(公告)日：2017-03-02

申请号：US15337530

申请日：2016-10-28

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Yakun SUN ,  Mingguang Xu ,  Hongyuan Zhang ,  Liwen Chu ,  Lei Wang ,  Hui-Ling Lou ,  Jinjing Jiang

IPC: H04L27/26 ,  H04W72/04

CPC classification number: H04L5/0007 ,  H04L5/0025 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/2602 ,  H04L27/2608 ,  H04L27/2613 ,  H04W84/12

Abstract: For a first group of devices having a first group size, a set of block allocations is selected from a codebook. A block allocation for the first group of devices is selected from the selected set of block allocations. A corresponding integer number of different orthogonal frequency division multiplexing (OFDM) tone blocks is assigned to each device of the first group of devices according to the allocation. An orthogonal frequency division multiple access (OFDMA) data unit to be transmitted to the first group of devices via the WLAN communication channel is generated using the assigned set of OFDM tone blocks. The OFDMA data unit includes a preamble portion and a data portion, the preamble portion having an index to the codebook that indicates i) the first group size, and ii) the selected block allocation.

Abstract translation: 对于具有第一组大小的第一组设备，从码本中选择一组块分配。 从所选择的块分配集中选择第一组设备的块分配。 根据分配，对第一组设备的每个设备分配对应的整数个不同的正交频分复用（OFDM）音调块。 使用所分配的一组OFDM音调块来生成经由WLAN通信信道发送到第一组设备的正交频分多址（OFDMA）数据单元。 OFDMA数据单元包括前导码部分和数据部分，前导码部分具有指示码本的索引，其指示i）第一组大小，以及ii）所选择的块分配。