公开(公告)号：US20130315323A1

公开(公告)日：2013-11-28

申请号：US13954836

申请日：2013-07-30

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/2666 ,  H04W84/12

Abstract: Pilot tones are included within symbols (e.g., orthogonal frequency division multiplexing (OFDM) symbols) transmitted between wireless communication devices. The pilot tones occupy fewer than all tone locations in any given symbol, and the pilot tones occupy different respective locations within different symbols. Generally, these traveling pilots are assigned to different respective tone locations in different symbols. In total, the pilot tones deed not cover every single tone location within the symbols used to convey information between devices. Considering for example, when pilots occupy fewer than all tone locations, even among multiple symbols, a device may perform interpolation to generate a pilot tone estimate corresponding to a tone location not occupied by pilot tone within any symbol. Also, power or magnitude of the pilot tones themselves may be boosted or amplified relative to power magnitude of other tones within such symbols.

Abstract translation: 导频音包括在无线通信设备之间传输的符号（例如，正交频分复用（OFDM）符号）内。 导频音在任何给定符号中占据比所有音调位置少，并且导频音在不同符号内占据不同的相应位置。 通常，将这些行驶导航器分配给不同的符号中的不同的各个音调位置。 总的来说，导频音没有覆盖用于在设备之间传送信息的符号中的每个单音音调位置。 考虑到例如，当导频占用少于所有音调位置时，即使在多个符号之中，设备也可以执行内插以产生对应于任何符号内未被导频音占据的音调位置的导频音估计。 此外，导频音调本身的功率或幅度可以相对于这样的符号内的其他音调的功率幅度被增强或放大。

公开(公告)号：US20130301555A1

公开(公告)日：2013-11-14

申请号：US13872574

申请日：2013-04-29

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat

IPC: H04L27/26

CPC classification number: H04L27/2636 ,  H04L1/0059 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0046 ,  H04L27/2626 ,  H04L27/2633 ,  H04W16/14 ,  H04W72/0453

Abstract: Multi-channel support within single user, multiple user, multiple access, and/or MIMO wireless communications. A communication device is implemented to encode information bit(s) to encoded bits, which subsequently can undergo processing by an interleaver that is implemented to generate interleaved bits. A constellation mapper is implemented to map the interleaved bits to constellation(s) to generate mapped signals. Two or more inverse discrete fast Fourier transform (IDFT) processors are respectively implemented to process the mapped signals to generate signal streams. For example, a first IDFT processor is implemented to process a first of the mapped signals to generate a first signal stream, and a second IDFT processor is implemented to process a second of the mapped signals to generate a second signal stream. Such a communication device also includes communication interface(s) to transmit the signal streams to at least one additional communication device.