公开(公告)号：US09124477B2

公开(公告)日：2015-09-01

申请号：US14471301

申请日：2014-08-28

Applicant: BROADCOM CORPORATION

Inventor： Avraham Kliger ,  Tak Kwan Lee ,  Richard Stephen Prodan ,  Ba-Zhong Shen ,  Yitshak Ohana

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04L1/00 ,  H03M13/27 ,  H03M13/09 ,  H03M13/11 ,  H03M13/15 ,  H03M13/23 ,  H03M13/25 ,  H03M13/29

CPC classification number: H04L27/2627 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/23 ,  H03M13/258 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2957 ,  H04L1/0042 ,  H04L27/2634

Abstract: A communication device includes a communication interface and a processor. In one example, the processor generates an orthogonal frequency division multiplexing (OFDM) symbol that includes information modulated within sub-carriers and then interleaves the sub-carriers of the OFDM symbol to generate an interleaved OFDM symbol. This interleaving of the sub-carriers operates to write the plurality of sub-carriers to rows of a two dimensional (2D) array and read the plurality of sub-carriers from columns of the 2D array. This interleaving also operates to read a column of the columns using a bit-reversed address of the column when the bit-reversed address is less than a number of the columns and using the address of the column when the bit-reversed address is greater than or equal to the number of the columns. The processor transmits, via the communication interface, the interleaved OFDM symbol to another communication device.

公开(公告)号：US20150063484A1

公开(公告)日：2015-03-05

申请号：US14471301

申请日：2014-08-28

Applicant: BROADCOM CORPORATION

Inventor： Avraham Kliger ,  Tak Kwan Lee ,  Richard Stephen Prodan ,  Ba-Zhong Shen ,  Yitshak Ohana

IPC: H04L27/26 ,  H04L1/00 ,  H03M13/27

CPC classification number: H04L27/2627 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/23 ,  H03M13/258 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2957 ,  H04L1/0042 ,  H04L27/2634

Abstract: A communication device includes a communication interface and a processor. In one example, the processor generates an orthogonal frequency division multiplexing (OFDM) symbol that includes information modulated within sub-carriers and then interleaves the sub-carriers of the OFDM symbol to generate an interleaved OFDM symbol. This interleaving of the sub-carriers operates to write the plurality of sub-carriers to rows of a two dimensional (2D) array and read the plurality of sub-carriers from columns of the 2D array. This interleaving also operates to read a column of the columns using a bit-reversed address of the column when the bit-reversed address is less than a number of the columns and using the address of the column when the bit-reversed address is greater than or equal to the number of the columns. The processor transmits, via the communication interface, the interleaved OFDM symbol to another communication device.

Abstract translation: 通信设备包括通信接口和处理器。 在一个示例中，处理器产生包括在子载波内调制的信息的正交频分复用（OFDM）符号，然后对OFDM符号的子载波进行交织以产生交错的OFDM符号。 子载波的这种交织操作以将多个子载波写入二维（2D）阵列的行，并从2D阵列的列读取多个子载波。 当比特反转地址小于列数时，使用位反转地址比特反转地址大于等于列的地址时，该交织也可以使用列的位反转地址来读列。 或等于列数。 处理器经由通信接口将交错的OFDM符号发送到另一通信设备。

公开(公告)号：US09432143B2

公开(公告)日：2016-08-30

申请号：US14296626

申请日：2014-06-05

Applicant: BROADCOM CORPORATION

Inventor： Niki Roberta Pantelias ,  Ba-Zhong Shen ,  Tak Kwan Lee ,  Avraham Kliger ,  Richard Stephen Prodan

IPC: H04L1/00 ,  H03M13/00 ,  H04L27/26 ,  H03M13/09 ,  H03M13/11 ,  H03M13/29

CPC classification number: H04L1/0041 ,  H03M13/09 ,  H03M13/116 ,  H03M13/2915 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/0072 ,  H04L27/2602

Abstract: A communication device is configured to communicate coded information to other communication device(s). The communication device uses NCPs to indicate locations of codewords within signal(s) transmitted to the other communication device(s). The communication device is configured to encode NCP(s) using an FEC code to generate coded NCP(s) and also to encode the NCP(s) using a cyclic redundancy check (CRC) code to generate NCP CRC bits. The communication device is also configured to encode the NCP CRC bits using the FEC code to generate coded NCP CRC bits. The communication device is then configured to generate OFDM or OFDMA symbol(s) include the coded NCP(s) and the coded NCP CRC bits to indicate beginnings of codeword(s) within at least one of the OFDM symbol(s) and/or additional OFDM symbol(s). The communication device is also configured to transmit the OFDM or OFDMA symbols to another communication device via a communication interface of the communication device.

Abstract translation: 通信设备被配置为将编码信息传送到其他通信设备。 通信设备使用NCP来指示发送到另一个通信设备的信号内的码字的位置。 通信设备被配置为使用FEC码来编码NCP以生成编码的NCP，并且还使用循环冗余校验（CRC）码对NCP进行编码以生成NCP CRC比特。 通信设备还被配置为使用FEC码对NCP CRC比特进行编码，以生成编码的NCP CRC比特。 然后，通信设备被配置为生成OFDM或OFDMA符号，包括编码的NCP和编码的NCP CRC比特，以指示至少一个OFDM符号中的码字的开始和/或 附加的OFDM符号。 通信设备还被配置为经由通信设备的通信接口将OFDM或OFDMA符号发送到另一通信设备。

公开(公告)号：US20140365845A1

公开(公告)日：2014-12-11

申请号：US14296626

申请日：2014-06-05

Applicant: BROADCOM CORPORATION

Inventor： Niki Roberta Pantelias ,  Ba-Zhong Shen ,  Tak Kwan Lee ,  Avraham Kliger ,  Richard Stephen Prodan

IPC: H04L1/00 ,  H04L27/26

CPC classification number: H04L1/0041 ,  H03M13/09 ,  H03M13/116 ,  H03M13/2915 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/0072 ,  H04L27/2602

Abstract: A communication device is configured to communicate coded information to other communication device(s). The communication device uses NCPs to indicate locations of codewords within signal(s) transmitted to the other communication device(s). The communication device is configured to encode NCP(s) using an FEC code to generate coded NCP(s) and also to encode the NCP(s) using a cyclic redundancy check (CRC) code to generate NCP CRC bits. The communication device is also configured to encode the NCP CRC bits using the FEC code to generate coded NCP CRC bits. The communication device is then configured to generate OFDM or OFDMA symbol(s) include the coded NCP(s) and the coded NCP CRC bits to indicate beginnings of codeword(s) within at least one of the OFDM symbol(s) and/or additional OFDM symbol(s). The communication device is also configured to transmit the OFDM or OFDMA symbols to another communication device via a communication interface of the communication device.

Abstract translation: 通信设备被配置为将编码信息传送到其他通信设备。 通信设备使用NCP来指示发送到另一个通信设备的信号内的码字的位置。 通信设备被配置为使用FEC码来编码NCP以生成编码的NCP，并且还使用循环冗余校验（CRC）码对NCP进行编码以生成NCP CRC比特。 通信设备还被配置为使用FEC码对NCP CRC比特进行编码，以生成编码的NCP CRC比特。 然后，通信设备被配置为生成OFDM或OFDMA符号，包括编码的NCP和编码的NCP CRC比特，以指示至少一个OFDM符号中的码字的开始和/或 附加的OFDM符号。 通信设备还被配置为经由通信设备的通信接口将OFDM或OFDMA符号发送到另一通信设备。

公开(公告)号：US20150128004A1

公开(公告)日：2015-05-07

申请号：US14525425

申请日：2014-10-28

Applicant: BROADCOM CORPORATION

Inventor： Tak Kwan Lee ,  Ba-Zhong Shen

IPC: H03M13/25 ,  H04L1/00

CPC classification number: H03M13/25

Abstract: A communication device (or device) includes a communication interface and processor that support communications with one or more other devices within a communication system. The processor generates and interprets different signals, frames, packets, symbols, etc. for transmission to other devices and that have been received from other devices. The device generates modulation symbols based on two-dimensional (2-D) symbol locations of a constellation. The device generates the 2-D symbol locations using based on recursive one-dimensional (1-D) Gray code formula applied to bits of symbol values. The recursive 1-D Gray code formula specifies first symbol locations for symbol values having a first number of bits (e.g., n) based on second symbol locations for other symbol values having one fewer bits per symbol (e.g., n−1). The device maps data symbols to the 2-D symbol locations to generate the modulation symbols and transmits the modulation symbols to another communication device.

Abstract translation: 通信设备（或设备）包括支持与通信系统内的一个或多个其他设备的通信的通信接口和处理器。 处理器生成和解释不同的信号，帧，分组，符号等，以便传输到其他设备并且已经从其他设备接收。 设备基于星座的二维（2-D）符号位置生成调制符号。 该设备使用基于递归的一维（1-D）格雷码公式应用于符号值的位来生成2-D符号位置。 递归1-D格雷码公式基于具有每符号（例如，n-1）少一个比特的其他符号值的第二符号位置，为具有第一比特数（例如，n）的符号值指定第一符号位置。 该设备将数据符号映射到2-D符号位置以产生调制符号并将调制符号发送到另一通信设备。

公开(公告)号：US20150095726A1

公开(公告)日：2015-04-02

申请号：US14499934

申请日：2014-09-29

Applicant: BROADCOM CORPORATION

Inventor： Kelly Brian Cameron ,  Hau Thien Tran ,  Tak Kwan Lee ,  Ba-Zhong Shen ,  Bruce Joseph Currivan

IPC: G06F11/07 ,  H03M13/11 ,  H04L1/00 ,  G06F11/10

CPC classification number: G06F11/076 ,  H03M13/1128 ,  H03M13/116 ,  H03M13/118 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/23 ,  H03M13/256 ,  H03M13/2957 ,  H03M13/3738 ,  H03M13/6508 ,  H04L1/0003 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/203

Abstract: A communication device operates to support communications with one or more other communication devices. The communication device includes a processor and a communication interface to perform various operations including receiving forward error correction (FEC) coded signals from another communication device. The communication device iteratively decodes the FEC coded signals to make estimates of information encoded therein. The communication device then determines an operational error check rate based on error check failure of at least one of the FEC coded signals after performing a predetermined number of decoding iterations (e.g., that is less than a maximum number of decoding iterations performed by the device). The device then determines a signal to noise ratio (SNR) margin of the communication device by applying the operational error check rate to a characterization of the communication device that relates error check rate and SNR.

Abstract translation: 通信设备操作以支持与一个或多个其他通信设备的通信。 通信设备包括处理器和用于执行各种操作的通信接口，包括从另一通信设备接收前向纠错（FEC）编码信号。 通信设备对FEC编码信号进行迭代解码，以对其中编码的信息进行估计。 然后，通信设备在执行预定数量的解码迭代之后（例如，小于由设备执行的解码迭代的最大数量），基于FEC编码信号中的至少一个的错误检查失败来确定操作错误校验速率， 。 然后，该设备通过将操作错误检查率应用于涉及错误检查率和SNR的通信设备的表征来确定通信设备的信噪比（SNR）余量。