公开(公告)号：US09197461B1

公开(公告)日：2015-11-24

申请号：US14207117

申请日：2014-03-12

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Yakun Sun ,  Leilei Song ,  Hui-Ling Lou ,  Mingguang Xu

IPC: H04B7/02 ,  H04L25/03 ,  H04B7/04 ,  H04L1/06 ,  H04L1/00

CPC classification number: H04B7/02 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0854 ,  H04L1/00 ,  H04L1/0047 ,  H04L1/0054 ,  H04L1/06 ,  H04L1/0618 ,  H04L25/03 ,  H04L25/03038 ,  H04L25/03057 ,  H04L25/03891

Abstract: In a method for performing successive interference cancellation (SIC) in a multiple input, multiple output (MIMO) communication channel, a plurality of received signals are processed to decode a first codeword. An equalizer is generated corresponding to a second codeword and applied to the plurality of received signals to generate an equalized signal. An interference signal is also generated using the first codeword and then subtracted from the equalized signal. The equalized signal is processed to decode the second codeword.

Abstract translation: 在用于在多输入多输出（MIMO）通信信道中执行连续干扰消除（SIC）的方法中，处理多个接收信号以对第一码字进行解码。 产生对应于第二码字的均衡器并将其应用于多个接收信号以产生均衡的信号。 还使用第一码字产生干扰信号，然后从均衡信号中减去干扰信号。 处理均衡信号以对第二码字进行解码。

公开(公告)号：US09094080B1

公开(公告)日：2015-07-28

申请号：US14133282

申请日：2013-12-18

Applicant: Marvell International Ltd.

Inventor： Mingguang Xu ,  Yakun Sun ,  Christian R. Berger ,  Hui-Ling Lou

IPC: H04L25/02 ,  H04B1/10 ,  H04B17/364 ,  H04B17/318

CPC classification number: H04B17/318 ,  H04B17/364 ,  H04L25/0212 ,  H04L25/0216 ,  H04L25/0228

Abstract: Systems and methods are provided for processing a signal using simplified channel statistics. In an example implementation, a channel profile for a multipath channel is estimated by detecting, within a given range, a number of channel taps associated with a channel impulse response, and assigning each of those channel taps a uniform amplitude value corresponding to a constant signal strength. A signal may be received through the multipath channel and filtered based on the estimated channel profile.

Abstract translation: 提供了使用简化的信道统计来处理信号的系统和方法。 在示例实现中，通过在给定范围内检测与信道脉冲响应相关联的信道抽头的数量来估计用于多径信道的信道简档，并且将这些信道抽头中的每一个分配给对应于恒定信号的均匀幅度值 强度。 可以通过多路径信道接收信号并且基于估计的信道简档进行滤波。

公开(公告)号：US09048893B1

公开(公告)日：2015-06-02

申请号：US14028088

申请日：2013-09-16

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Mingguang Xu ,  Jie Huang

IPC: H04B7/04 ,  H04L25/03 ,  H04L1/00

CPC classification number: H04B7/0417 ,  H04B7/0413 ,  H04B7/0626 ,  H04L1/0054 ,  H04L25/03267 ,  H04L25/03292 ,  H04L25/03968

Abstract: In various embodiments, the present disclosure provides transmitters, receivers, and methods of determining channel state information for a maximum likelihood (ML) multiple input multiple output (MIMO) receiver, as well as transmitting and demodulating signals based on the determined channel state information. A ML MIMO receiver receives a first MIMO signal from a MIMO transmitter. Channel characteristics of the first MIMO signal are determined based on decision feedback equalization (DFE) processing. The DFE-determined channel characteristics, or information derived from the DFE-determined channel characteristics, are reported to the MIMO transmitter and the MIMO ML receiver decodes a second MIMO signal based on ML processing. The second MIMO signal is modulated and encoded by the MIMO transmitter according to a modulation and coding scheme in accordance with (1) the DFE-determined channel characteristics or (2) the information derived from the DFE-determined channel characteristics.

Abstract translation: 在各种实施例中，本公开提供了确定用于最大似然（ML）多输入多输出（MIMO）接收机的信道状态信息的发射机，接收机和方法，以及基于所确定的信道状态信息来发射和解调信号。 ML MIMO接收机从MIMO发射机接收第一MIMO信号。 基于判决反馈均衡（DFE）处理确定第一MIMO信号的信道特性。 将DFE确定的信道特性或从DFE确定的信道特性导出的信息报告给MIMO发射机，并且MIMO ML接收机基于ML处理来解码第二MIMO信号。 根据（1）DFE确定的信道特性的调制和编码方案，由MIMO发射机调制和编码第二MIMO信号，或（2）从DFE确定的信道特性导出的信息。

公开(公告)号：US08964911B1

公开(公告)日：2015-02-24

申请号：US13684005

申请日：2012-11-21

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Raphael Cendrillon ,  Mingguang Xu ,  Hui-Ling Lou ,  Christian R. Berger ,  Yan Zhang

IPC: H03K9/00 ,  H04B1/10

CPC classification number: H04J11/0036

Abstract: Systems, methods, apparatus, and techniques are provided for receiving signals over a communications channel, generating a plurality of successive estimates of instantaneous interference present in the communications channel at a respective plurality of samples based on the received signals, producing an average interference estimate of the interference channel based on the plurality of successive estimates, and producing a decoded codeword based on i) the average interference estimate and ii) the received signals.

Abstract translation: 提供系统，方法，装置和技术用于通过通信信道接收信号，基于接收到的信号，在相应的多个样本上产生存在于通信信道中的瞬时干扰的多个连续估计，产生平均干扰估计 所述干扰信道基于所述多个连续估计，并且基于i）所述平均干扰估计并且ii）所接收的信号来产生解码码字。

公开(公告)号：US10374840B1

公开(公告)日：2019-08-06

申请号：US15980650

申请日：2018-05-15

Applicant: Marvell International Ltd.

Inventor： Yakun Sun ,  Mingguang Xu ,  Hongyuan Zhang

IPC: H04L5/00 ,  H04L25/03 ,  H04W84/12

Abstract: Systems and techniques relating to repeated signal detection are described. A described system includes a receiver to receive a frame including first and second portions, the first portion including first and second signal fields; a detector to determine a first decision metric component based on a hypothesis that the second signal field is a repeated version of the first signal field, determine a second decision metric component based on a hypothesis that the second signal field is not the repeated version, and make a determination, based on the first and second decision metric components, of whether the second signal field is the repeated version; and a decoder to process the second portion in accordance with a first format if the second signal field is not the repeated version, and to decode the second portion in accordance with a second format if the second signal field is the repeated version.

公开(公告)号：US10263735B2

公开(公告)日：2019-04-16

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: H04W52/02 ,  H04L5/00 ,  H04L27/26 ,  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.

公开(公告)号：US10219162B1

公开(公告)日：2019-02-26

申请号：US15440838

申请日：2017-02-23

Applicant: Marvell International LTD.

Inventor： Yakun Sun ,  Mingguang Xu ,  Hui-Ling Lou ,  Hongyuan Zhang ,  Yan Zhang ,  Liwen Chu ,  Jinjing Jiang

IPC: H04B1/00 ,  H04W16/14 ,  H04B1/50 ,  H04W72/04

Abstract: A wireless device includes a first receiver configured to receive a first signal transmitted using a first communication protocol, and to generate at least one of first information based on a first portion of a first signal and second information based on a second portion of the first signal. The wireless device includes a second receiver configured to receive a second signal transmitted using a second communication protocol, to suppress at least a portion of interference from the first signal based on the first information in response to the first receiver generating only the first information, and to cancel interference from the first signal based on the first information and the second information in response to the first receiver generating the first information and the second information.

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。

公开(公告)号：US09325395B1

公开(公告)日：2016-04-26

申请号：US14042788

申请日：2013-10-01

Applicant: MARVELL INTERNATIONAL LTD.

Inventor： Mingguang Xu ,  Yakun Sun ,  Christian R. Berger

IPC: H04B7/04 ,  H04L25/03 ,  H04L25/06 ,  H04L1/06 ,  H04L1/20

CPC classification number: H04L25/067 ,  H04B7/0413 ,  H04L1/0618 ,  H04L1/20 ,  H04L25/0222 ,  H04L25/0234 ,  H04L25/0256 ,  H04L25/03038

Abstract: Systems, methods, and other embodiments associated with channel processing with dedicated pilots utilizing information from broadcast pilots are described. According to one embodiment, an method includes receiving, through a channel, i) a signal resource block that includes data and a dedicated pilot that is precoded and ii) at least one broadcast pilot that is not precoded. A channel property is deduced from the broadcast pilot; and the channel is processed by applying the channel property to the dedicated pilot. In one embodiment, the method includes estimating an effective channel by applying the channel property to the dedicated pilot.

Abstract translation: 描述了利用来自广播导频的信息的专用导频与信道处理相关联的系统，方法和其它实施例。 根据一个实施例，一种方法包括：通过信道接收i）包括预编码的数据和专用导频的信号资源块，以及ii）未被预编码的至少一个广播导频。 从广播飞行员推断频道属性; 并且通过将信道属性应用于专用导频来处理信道。 在一个实施例中，该方法包括通过将信道属性应用于专用导频来估计有效信道。