公开(公告)号：US08934503B2

公开(公告)日：2015-01-13

申请号：US13917972

申请日：2013-06-14

Applicant: Broadcom Corporation

Inventor： Lisa Voigt Denney ,  Hooman Moshar ,  John Daniel Horton ,  Shane Patrick Lansing ,  Sean Francis Nazareth ,  Niki Roberta Pantelias

IPC: H04J3/24 ,  H04L29/06 ,  H04L12/28 ,  H04L12/54 ,  H04L12/873 ,  H04L12/863 ,  H04L12/861 ,  H04N7/173

CPC classification number: H04L29/0653 ,  H04L12/2801 ,  H04L47/50 ,  H04L47/52 ,  H04L47/6215 ,  H04L49/9094 ,  H04N7/17309

Abstract: A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput. The enhanced functionality includes header suppression and expansion. DES encryption and decryption, fragment reassembly, concatenation, and DMA operations.

Abstract translation: 诸如通信网络内的头端设备的监控通信设备在广泛分布的网络中监视和控制与多个远程通信设备的通信。 监控设备通过在其下行信道上发送MAP消息来在上行信道上分配带宽。 高集成度的媒体访问控制器集成电路（MAC IC）在头端内部进行操作，以便与远程设备交换的信号提供较低级别的处理。 MAC IC的增强功能减轻了头端CPU的处理负担，并增加了数据包吞吐量。 增强的功能包括报头抑制和扩展。 DES加密和解密，片段重组，级联和DMA操作。

公开(公告)号：US20130279523A1

公开(公告)日：2013-10-24

申请号：US13917972

申请日：2013-06-14

Applicant: Broadcom Corporation

Inventor： Lisa Voigt Denney ,  Hooman Moshar ,  John Daniel Horton ,  Shane Patrick Lansing ,  Sean Francis Nazareth ,  Niki Roberta Pantelias

IPC: H04L29/06

CPC classification number: H04L29/0653 ,  H04L12/2801 ,  H04L47/50 ,  H04L47/52 ,  H04L47/6215 ,  H04L49/9094 ,  H04N7/17309

Abstract: A supervisory communications device, such as a headend device within a communications network, monitors and controls communications with a plurality of remote communications devices throughout a widely distributed network. The supervisory device allocates bandwidth on the upstream channels by sending MAP messages over its downstream channel. A highly integrated media access controller integrated circuit (MAC IC) operates within the headend to provide lower level processing on signals exchanged with the remote devices. The enhanced functionality of the MAC IC relieves the processing burden on the headend CPU and increases packet throughput.. The enhanced functionality includes header suppression and expansion. DES encryption and decryption, fragment reassembly, concatenation, and DMA operations.

Abstract translation: 诸如通信网络内的头端设备的监控通信设备在广泛分布的网络中监视和控制与多个远程通信设备的通信。 监控设备通过在其下行信道上发送MAP消息来在上行信道上分配带宽。 高集成度的媒体访问控制器集成电路（MAC IC）在头端内部进行操作，以便与远程设备交换的信号提供较低级别的处理。 MAC IC的增强功能减轻了头端CPU的处理负担，并增加了数据包吞吐量。增强的功能包括报头抑制和扩展。 DES加密和解密，片段重组，级联和DMA操作。

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。