公开(公告)号：US20120076183A1

公开(公告)日：2012-03-29

申请号：US13311334

申请日：2011-12-05

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lee Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lee Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: H04B1/38

CPC classification number: H03M13/356 ,  H03M13/1515 ,  H04H20/69 ,  H04H60/11 ,  H04H60/97 ,  H04K3/226 ,  H04K3/255 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0044 ,  H04L27/2631 ,  H04L27/2652 ,  H04L2001/0093

Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor modulating a first carrier of the plurality of spectrally overlapping carrier signals based on a first modulation scheme while modulating a second carrier of the plurality of spectrally overlapping carrier signals based on a second modulation scheme.

Abstract translation: 提供了正交频分复用的系统和方法。 在一个实施例中，多载波调制解调器包括：发射机，被配置为将符号调制到多个频谱重叠的载波信号中的至少一个; 耦合到所述发射机的处理器，其中所述处理器输出用于由所述发射机发射的数据，其中所述处理器对所述发射机发射的数据进行逆傅立叶变换; 所述处理器基于第一调制方案来调制所述多个频谱重叠的载波信号中的第一载波，同时基于第二调制方案调制所述多个频谱重叠的载波信号中的第二载波。

公开(公告)号：US20090225818A1

公开(公告)日：2009-09-10

申请号：US11927405

申请日：2007-10-29

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: H04B1/38 ,  H04L27/28

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals to produce a receiver output; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor coupled to the receiver, wherein the processor applies a Fourier transform to the receiver output; and a controller programmed to instruct the transmitter to transmit at least one symbol representing a request for bandwidth allocation on a first carrier; wherein the controller is further programmed to determine when a collision has occurred on the first carrier.

Abstract translation: 提供了正交频分复用的系统和方法。 在一个实施例中，多载波调制解调器包括：接收机，被配置为从多个频谱重叠的载波信号中的至少一个去调制符号以产生接收机输出; 发射机，被配置为将符号调制到多个频谱重叠载波信号中的至少一个; 耦合到所述发射机的处理器，其中所述处理器输出用于由所述发射机发射的数据，其中所述处理器对所述发射机发射的数据进行逆傅立叶变换; 所述处理器耦合到所述接收器，其中所述处理器对所述接收器输出施加傅里叶变换; 以及控制器，被编程为指示所述发射机在第一载波上发送表示对带宽分配的请求的至少一个符号; 其中所述控制器被进一步编程以确定何时在所述第一载体上发生了冲突。

公开(公告)号：US20090092040A1

公开(公告)日：2009-04-09

申请号：US12272546

申请日：2008-11-17

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: H04J11/00

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: Methods and systems for selecting modulation in an orthogonal frequency division multiplexing system are provided. In one embodiment, a method for a remote unit of an OFDM multipoint-to-point communications system comprises: establishing communication between a first remote unit and a host unit, the first remote unit and a plurality of remote units communicatively coupled to the host unit in a multipoint-to-point configuration; transmitting a plurality of tones from the first remote unit such that tones from the first remote unit and at least one other remote unit are simultaneously received at the host unit, the plurality of tones modulated with upstream information using OFDM; modulating up to a plurality of tones using a first modulation scheme when transmitting a first type of upstream information; and modulating up to a plurality of tones using a second modulation scheme when transmitting a second type of upstream information.

Abstract translation: 提供了用于在正交频分复用系统中选择调制的方法和系统。 在一个实施例中，一种用于OFDM多点对点通信系统的远程单元的方法包括：建立第一远程单元和主机单元之间的通信，第一远程单元和通信地耦合到主机单元的多个远程单元 在多点对点配置中; 从所述第一远程单元发送多个音调，使得来自所述第一远程单元和至少一个其他远程单元的音调在所述主机单元处同时被接收，所述多个音调使用OFDM以上行信息进行调制; 当发送第一类型的上游信息时，使用第一调制方案调制多个音调; 以及当发送第二类型的上游信息时，使用第二调制方案来调制多个音调。

公开(公告)号：US06594322B2

公开(公告)日：2003-07-15

申请号：US09396843

申请日：1999-09-15

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance Hill

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance Hill

IPC: H03D300

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: A method of distributed loop control is described. The method includes receiving at a service unit downstream control and telephony information modulated on orthogonal carriers in a first frequency bandwidth over a distribution network. The method further includes transmitting from the service unit upstream telephony information and control data modulated on orthogonal carriers in a second frequency bandwidth over the distribution network. In addition, the method includes adjusting at least one local transmission characteristic when an adjustment command from a head end terminal is received in the downstream control data. The downstream control data is based on prior upstream transmissions from the service unit.

Abstract translation: 描述了分布式环路控制的方法。 该方法包括在服务单元处接收在分配网络上的第一频带中的在正交载波上调制的下行控制和电话信息。 该方法还包括从服务单元向分发网络发送上行电话信息和在第二频带上正交载波上调制的控制数据。 此外，该方法包括当在下游控制数据中接收到来自头端终端的调整命令时，调整至少一个本地传输特性。 下游控制数据基于来自服务单元的先前上行传输。

公开(公告)号：US06282683B1

公开(公告)日：2001-08-28

申请号：US09396330

申请日：1999-09-15

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: G06F1100

CPC classification number: G06F17/14 ,  G06F17/142 ,  H04B10/272 ,  H04H20/78 ,  H04J3/14 ,  H04J14/0298 ,  H04L1/0057 ,  H04L1/24 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/264 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2657 ,  H04L27/34 ,  H04L43/00 ,  H04L43/0847 ,  H04L43/0864 ,  H04L43/16 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2383 ,  H04N21/4382

Abstract: The communication system includes a hybrid fiber/coax distribution network. A head end provides for downstream transmission of telephony and control data in a first frequency bandwidth over the hybrid fiber/coax distribution network and reception of upstream telephony and control data in a second frequency bandwidth over the hybrid fiber/coax distribution network. The head end includes a head end multicarrier modem for modulating at least downstream telephony information on a plurality of orthogonal carriers in the first frequency bandwidth and demodulating at least upstream telephony information modulated on a plurality of orthogonal carriers in the second frequency bandwidth. The head end further includes a controller operatively connected to the head end multicarrier modem for controlling transmission of the downstream telephony information and downstream control data and for controlling receipt of the upstream control data and upstream telephony information. The system further includes service units, each service unit operatively connected to the hybrid fiber/coax distribution network for upstream transmission of telephony and control data in the second frequency bandwidth and for receipt of the downstream control data and telephony in the first frequency bandwidth. Each service unit includes a service unit multicarrier modem for modulating at least the upstream telephony information on at least one carrier orthogonal at the head end terminal to another carrier in the second frequency bandwidth and for demodulating at least downstream telephony information modulated on at least a band of a plurality of orthogonal carriers in the first frequency bandwidth. Each service unit also includes a controller operatively connected to the service unit multicarrier modem for controlling the modulation of and demodulation performed by the service unit multicarrier modem. A method of monitoring communication channels, a distributed loop method for adjusting transmission characteristics to allow for transmission of data in a multi-point to point communication system, a polyphase filter technique for providing ingress protection and a scanning method for identifying frequency bands to be used for transmission by service units are also included. Also provided is a method and apparatus for performing a Fast Fourier Transform (FFT). In one embodiment, a scalable FFT system is built using a novel dual-radix butterfly core.

公开(公告)号：US5633896A

公开(公告)日：1997-05-27

申请号：US604276

申请日：1996-02-21

Applicant: Barry W. Carlin ,  Mark J. Dapper ,  Michael J. Geile

Inventor： Barry W. Carlin ,  Mark J. Dapper ,  Michael J. Geile

IPC: H03D1/22 ,  H04L27/26 ,  H04L27/06 ,  H03D1/00

CPC classification number: H04L27/265 ,  H03D1/2245 ,  H04H2201/186

Abstract: The invention provides a method and apparatus for demodulating a composite AM DAB waveform which contains digitally modulated carriers and which employ (1) a mixer for converting a received signal into two signals (the first of these two signals represents an in-phase component and the second of these two signals represents a quadrature component); (2) two analog-to-digital converters for converting the two signals into digital signals; and (3) two fast Fourier transform elements for extracting data separately from the two digital signals. Complementary digital carrier signals are recovered from the quadrature component, and non-complementary digital carriers are derived from a sum of the complementary data and the output of the in-phase component FFT process. Leakage of the AM signal through a highpass filter is prevented from interfering with the demodulation of the complementary carrier signals' use of separated demodulation channels.

Abstract translation: 本发明提供了一种用于解调包含数字调制载波的复合AM DAB波形的方法和装置，其采用（1）混频器将接收信号转换为两个信号（这两个信号中的第一个表示同相分量， 这两个信号中的第二个表示正交分量）; （2）两个用于将两个信号转换为数字信号的模拟 - 数字转换器; 和（3）用于从两个数字信号分离提取数据的两个快速傅里叶变换元件。 从正交分量中恢复互补数字载波信号，并且从互补数据和同相分量FFT处理的输出之和导出非互补数字载波。 防止AM信号通过高通滤波器的泄漏干扰互补载波信号对分离的解调信道的使用的解调。

公开(公告)号：US4748641A

公开(公告)日：1988-05-31

申请号：US751584

申请日：1985-07-03

Applicant: Mark J. Dapper

Inventor： Mark J. Dapper

IPC: H04L27/20

CPC classification number: H04L27/2014

Abstract: A carrier is modulated with binary coded data to produce a suppressed carrier constant amplitude wave by shaping modulation for the carrier so the carrier phase changes gradually between predetermined values without cumulative errors, in response to adjacent bits having different values.

Abstract translation: 利用二进制编码数据对载波进行调制，通过对载波进行整形调制来产生抑制载波恒定幅度波，以便响应于具有不同值的相邻比特，载波相位在预定值之间逐渐改变，而没有累积误差。

公开(公告)号：US20090080554A1

公开(公告)日：2009-03-26

申请号：US12272542

申请日：2008-11-17

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: H04J11/00

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: Systems and methods for OFDM tone allocation are provided. In one embodiment, an end-user communication device comprises: a first remote unit for communicating with a host unit using orthogonal frequency division multiplexing (OFDM), the host unit communicatively coupled to a plurality of remote units in a multipoint-to-point configuration, wherein OFDM waveform from distinct remote units of the plurality of remote units combine to a unified OFDM waveform at the host unit. The first remote unit is configured to transmit up to a plurality of tones, the up to a plurality of tones modulated with upstream information using OFDM. The first remote unit is configured to determine when bandwidth is needed for upstream transmission to the host unit. The first remote unit is configured to transmit a request for bandwidth to the host unit on a first tone of the plurality of tones, wherein access to the first tone is contention-based.

Abstract translation: 提供了OFDM音调分配的系统和方法。 在一个实施例中，终端用户通信设备包括：第一远程单元，用于使用正交频分复用（OFDM）与主机单元通信，所述主机单元以多点对点配置通信地耦合到多个远程单元 其中来自多个远程单元的不同远程单元的OFDM波形在主机单元处组合成统一的OFDM波形。 第一远程单元被配置为发送多达多个音调，最多多个音调通过上行信息使用OFDM调制。 第一远程单元被配置为确定上行传输到主机单元何时需要带宽。 第一远程单元被配置为以多个音调的第一音调向主机单元发送带宽请求，其中对第一音调的访问是基于争用的。

公开(公告)号：US20080240410A1

公开(公告)日：2008-10-02

申请号：US11927498

申请日：2007-10-29

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P. Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C. Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S. Russell ,  Calvin G. Nelson ,  Niranjan R. Samant ,  Joseph F. Chiappetta ,  Scott Sarnikowski

IPC: H04M1/00

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; a transmitter; a processor coupled to the transmitter, wherein the processor outputs data for transmission to the transmitter, wherein the processor applies an inverse Fourier transform algorithm to the data provided to the transmitter; and a controller programmed to analyze a training signal received from a first remote unit and adjust receiver equalizer parameters based on the training signal.

Abstract translation: 提供了正交频分复用的系统和方法。 在一个实施例中，多载波调制解调器包括：接收机，被配置为从多个远程单元中的至少两个接收包括多个频谱重叠的载波信号的波形，其中所述多个频谱重叠的载波信号使用逆 傅立叶变换算法; 发射机 耦合到所述发射机的处理器，其中所述处理器输出用于传输到所述发射机的数据，其中所述处理器对提供给所述发射机的数据应用傅里叶逆变换算法; 以及控制器，被编程为分析从第一远程单元接收的训练信号，并且基于训练信号调整接收机均衡器参数。

公开(公告)号：US20080225692A1

公开(公告)日：2008-09-18

申请号：US11927453

申请日：2007-10-29

Applicant: Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S Russell ,  Calvin G Nelson ,  Niranjan R Samant ,  Joseph F Chiappetta ,  Scott Sarnikowski

Inventor： Mark J. Dapper ,  Michael J. Geile ,  Terrance J. Hill ,  Harold A. Roberts ,  Brian D. Anderson ,  Jeffrey Brede ,  Mark S. Wadman ,  Robert J. Kirscht ,  James J. Herrmann ,  Michael J. Fort ,  Steven P Buska ,  Jeff Solum ,  Debra Lea Enfield ,  Darrell Berg ,  Thomas Smigelski ,  Thomas C Tucker ,  Joe Hall ,  John M. Logajan ,  Somvay Boualouang ,  Heng Lou ,  Mark D. Elpers ,  Matt Downs ,  Tammy Ferris ,  Adam Opoczynski ,  David S Russell ,  Calvin G Nelson ,  Niranjan R Samant ,  Joseph F Chiappetta ,  Scott Sarnikowski

IPC: H04J11/00

CPC classification number: H04W24/00 ,  G06F17/14 ,  G06F17/142 ,  H03M13/1515 ,  H03M13/356 ,  H04B10/272 ,  H04H20/69 ,  H04H20/77 ,  H04H20/78 ,  H04H20/79 ,  H04H20/80 ,  H04H60/11 ,  H04H60/86 ,  H04H60/96 ,  H04H60/97 ,  H04J3/14 ,  H04J14/0298 ,  H04K1/00 ,  H04K3/226 ,  H04K3/255 ,  H04L1/004 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/24 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/023 ,  H04L5/14 ,  H04L5/143 ,  H04L5/1484 ,  H04L12/10 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/44 ,  H04L25/03866 ,  H04L27/2601 ,  H04L27/2608 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L27/2652 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/34 ,  H04L41/0213 ,  H04L41/064 ,  H04L41/0896 ,  H04L43/00 ,  H04L43/022 ,  H04L43/067 ,  H04L43/0811 ,  H04L43/0817 ,  H04L43/0823 ,  H04L43/0829 ,  H04L43/0847 ,  H04L43/0852 ,  H04L43/0858 ,  H04L43/0864 ,  H04L43/0882 ,  H04L43/16 ,  H04L2001/0093 ,  H04L2027/0036 ,  H04L2027/0057 ,  H04L2027/0067 ,  H04M7/006 ,  H04M9/027 ,  H04N7/17309 ,  H04N7/22 ,  H04N21/2221 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2402 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6137 ,  H04N21/6168 ,  H04W24/08 ,  Y02D50/40 ,  Y02D50/42

Abstract: Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises:a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor programmed to encode upstream information using a forward error correction algorithm based on forward error correction parameters received by the receiver.

Abstract translation: 提供了正交频分复用的系统和方法。 在一个实施例中，多载波调制解调器包括：被配置为从多个频谱重叠的载波信号中的至少一个去调制符号的接收机; 发射机，被配置为将符号调制到多个频谱重叠载波信号中的至少一个; 耦合到所述发射机的处理器，其中所述处理器输出用于由所述发射机发射的数据，其中所述处理器对所述发射机发射的数据进行逆傅立叶变换; 处理器被编程为使用基于由接收器接收的前向纠错参数的前向纠错算法对上行信息进行编码。