公开(公告)号：US20100279599A1

公开(公告)日：2010-11-04

申请号：US12834441

申请日：2010-07-12

申请人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

发明人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

IPC分类号： H04H20/71 ,  H04B7/185

CPC分类号： H04J3/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L27/2604

摘要： A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate. If the signal strength weakens over a period of time, the wireless modem may receive data at a lower order modulation and FEC code rate.

摘要翻译： 一种下行自适应调制系统及方法。 下行自适应调制系统包括无线接入终端系统和一个或多个无线调制解调器。 无线接入终端系统包括多个队列和解析器。 解析器将数据流量分析到多个队列上。 每个队列与不同的编码和调制方案相关联。 一个或多个无线调制解调器中的每一个基于无线调制解调器解调和解码来自多个队列中的每一个的信号的能力，从多个队列中接收数据业务。 当无线调制解调器经历信号强度的变化时，本发明使得无线调制解调器能够适应来自其他队列的数据以补偿信号强度的变化。 因此，如果信号强度在一段时间内改善，则无线调制解调器可以以较高阶调制和FEC码率接收数据。 如果信号强度在一段时间内衰减，则无线调制解调器可以以较低阶调制和FEC码率接收数据。

公开(公告)号：US08577309B2

公开(公告)日：2013-11-05

申请号：US12834441

申请日：2010-07-12

申请人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

发明人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

IPC分类号： H04B1/66

CPC分类号： H04J3/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L27/2604

摘要： A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate. If the signal strength weakens over a period of time, the wireless modem may receive data at a lower order modulation and FEC code rate.

摘要翻译： 一种下行自适应调制系统及方法。 下行自适应调制系统包括无线接入终端系统和一个或多个无线调制解调器。 无线接入终端系统包括多个队列和解析器。 解析器将数据流量分析到多个队列上。 每个队列与不同的编码和调制方案相关联。 一个或多个无线调制解调器中的每一个基于无线调制解调器解调和解码来自多个队列中的每一个的信号的能力，从多个队列接收数据业务。 当无线调制解调器经历信号强度的变化时，本发明使得无线调制解调器能够适应来自其他队列的数据以补偿信号强度的变化。 因此，如果信号强度在一段时间内改善，则无线调制解调器可以以较高阶调制和FEC码率接收数据。 如果信号强度在一段时间内衰减，则无线调制解调器可以以较低阶调制和FEC码率接收数据。

公开(公告)号：US07778592B2

公开(公告)日：2010-08-17

申请号：US11583070

申请日：2006-10-19

申请人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

发明人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

IPC分类号： H04H20/71

CPC分类号： H04J3/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L27/2604

摘要： A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate. If the signal strength weakens over a period of time, the wireless modem may receive data at a lower order modulation and FEC code rate.

摘要翻译： 一种下行自适应调制系统及方法。 下行自适应调制系统包括无线接入终端系统和一个或多个无线调制解调器。 无线接入终端系统包括多个队列和解析器。 解析器将数据流量分析到多个队列上。 每个队列与不同的编码和调制方案相关联。 一个或多个无线调制解调器中的每一个基于无线调制解调器解调和解码来自多个队列中的每一个的信号的能力，从多个队列中接收数据业务。 当无线调制解调器经历信号强度的变化时，本发明使得无线调制解调器能够适应来自其他队列的数据以补偿信号强度的变化。 因此，如果信号强度在一段时间内改善，则无线调制解调器可以以较高阶调制和FEC码率接收数据。 如果信号强度在一段时间内衰减，则无线调制解调器可以以较低阶调制和FEC码率接收数据。

公开(公告)号：US20070037531A1

公开(公告)日：2007-02-15

申请号：US11583070

申请日：2006-10-19

申请人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

发明人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

IPC分类号： H04B1/02 ,  H04B1/66

CPC分类号： H04J3/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L27/2604

摘要： A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate. If the signal strength weakens over a period of time, the wireless modem may receive data at a lower order modulation and FEC code rate.

摘要翻译： 一种下行自适应调制系统及方法。 下行自适应调制系统包括无线接入终端系统和一个或多个无线调制解调器。 无线接入终端系统包括多个队列和解析器。 解析器将数据流量分析到多个队列上。 每个队列与不同的编码和调制方案相关联。 一个或多个无线调制解调器中的每一个基于无线调制解调器解调和解码来自多个队列中的每一个的信号的能力，从多个队列中接收数据业务。 当无线调制解调器经历信号强度的变化时，本发明使得无线调制解调器能够适应来自其他队列的数据以补偿信号强度的变化。 因此，如果信号强度在一段时间内改善，则无线调制解调器可以以较高阶调制和FEC码率接收数据。 如果信号强度在一段时间内衰减，则无线调制解调器可以以较低阶调制和FEC码率接收数据。

公开(公告)号：US20100074167A1

公开(公告)日：2010-03-25

申请号：US12409461

申请日：2009-03-23

申请人： Mark Dale ,  Anders Hebsgaard ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

发明人： Mark Dale ,  Anders Hebsgaard ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

IPC分类号： H04B7/212 ,  H04L12/56

CPC分类号： H04L47/29 ,  H04B7/18582 ,  H04L12/2801 ,  H04L47/10 ,  H04L47/263 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/4382 ,  H04N21/44209 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/6377 ,  H04N2007/17381

摘要： In a DOCSIS based satellite gateway data is transmitted over a single downstream channel, at different throughput rates. Data destined for each subscriber/receiver is assigned a throughput rate depending upon the downstream signal quality of that subscriber/receiver. To accomplish this, the downstream DOCSIS MAC data is parsed to extract DOCSIS packets. The DOCSIS packets are then loaded into packet queues based on an identifier within such packets such as the MAC destination address or SID. Each of the queues represents a bandwidth efficiency or throughput rate that can be currently tolerated by specific subscribers based on the current signal quality being experienced at the subscriber location. A PHY-MAP describing the downstream data structure to be transmitted and inserted into the downstream data. Data is extracted from the packet queues in queue blocks as defined by the PHY-MAP. The queue blocks are modulated with transmission parameters appropriate for each queue block and transmitted to the DOCSIS based satellite modems. The satellite modems extract the PHY-MAP from the downstream data and use the information contained in it to demodulate and decode the queue for which they have sufficient downstream signal quality. Satellite modems measure and transmit downstream signal quality to the satellite gateway to be used to assigned traffic to the appropriate queues.

摘要翻译： 在基于DOCSIS的卫星网关中，数据通过单个下游信道以不同的吞吐率传输。 根据该用户/接收机的下行信号质量为目的地为每个用户/接收机指定的数据被分配吞吐率。 为了实现这一点，下游DOCSIS MAC数据被解析以提取DOCSIS分组。 DOCSIS分组然后基于诸如MAC目的地址或SID之类的分组内的标识符加载到分组队列中。 每个队列表示基于当前在用户位置处经历的信号质量，特定订户可以容忍的带宽效率或吞吐率。 描述要发送并插入下游数据的下游数据结构的PHY-MAP。 从PHY-MAP定义的队列块中的数据包队列中提取数据。 使用适合于每个队列块的传输参数调制队列块，并将其发送到基于DOCSIS的卫星调制解调器。 卫星调制解调器从下游数据中提取PHY-MAP，并使用其中包含的信息对其具有足够的下行信号质量的队列进行解调和解码。 卫星调制解调器测量和传输下行信号质量到卫星网关，用于将流量分配给适当的队列。

公开(公告)号：US07508785B2

公开(公告)日：2009-03-24

申请号：US10319929

申请日：2002-12-12

申请人： Mark Dale ,  Anders Hebsgaard ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

发明人： Mark Dale ,  Anders Hebsgaard ,  David Hartman ,  Alan Kwentus ,  Steven Jaffe ,  Kelly Cameron ,  Stephen Krafft ,  Alan Gin ,  Jen-chieh (Jack) Chien ,  Dorothy Lin ,  Rocco Brescia ,  Joyce Wang

IPC分类号： H04B7/212

CPC分类号： H04L47/29 ,  H04B7/18582 ,  H04L12/2801 ,  H04L47/10 ,  H04L47/263 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/4382 ,  H04N21/44209 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/6377 ,  H04N2007/17381

摘要： In a DOCSIS based satellite gateway data is transmitted over a single downstream channel, at different throughput rates. Data destined for each subscriber/receiver is assigned a throughput rate depending upon the downstream signal quality of that subscriber/receiver. To accomplish this, the downstream DOCSIS MAC data is parsed to extract DOCSIS packets. The DOCSIS packets are then loaded into packet queues based on an identifier within such packets such as the MAC destination address or SID. Each of the queues represents a bandwidth efficiency or throughput rate that can be currently tolerated by specific subscribers based on the current signal quality being experienced at the subscriber location. A PHY-MAP describing the downstream data structure to be transmitted and inserted into the downstream data. Data is extracted from the packet queues in queue blocks as defined by the PHY-MAP. The queue blocks are modulated with transmission parameters appropriate for each queue block and transmitted to the DOCSIS based satellite modems. The satellite modems extract the PHY-MAP from the downstream data and use the information contained in it to demodulate and decode the queue for which they have sufficient downstream signal quality. Satellite modems measure and transmit downstream signal quality to the satellite gateway to be used to assigned traffic to the appropriate queues.

摘要翻译： 在基于DOCSIS的卫星网关中，数据通过单个下游信道以不同的吞吐率传输。 根据该用户/接收机的下行信号质量为目的地为每个用户/接收机指定的数据被分配吞吐率。 为了实现这一点，下游DOCSIS MAC数据被解析以提取DOCSIS分组。 DOCSIS分组然后基于诸如MAC目的地址或SID之类的分组内的标识符加载到分组队列中。 每个队列表示基于当前在用户位置处经历的信号质量，特定订户可以容忍的带宽效率或吞吐率。 描述要发送并插入下游数据的下游数据结构的PHY-MAP。 从PHY-MAP定义的队列块中的数据包队列中提取数据。 使用适合于每个队列块的传输参数调制队列块，并将其发送到基于DOCSIS的卫星调制解调器。 卫星调制解调器从下游数据中提取PHY-MAP，并使用其中包含的信息对其具有足够的下行信号质量的队列进行解调和解码。 卫星调制解调器测量和传输下行信号质量到卫星网关，用于将流量分配给适当的队列。

公开(公告)号：US07197276B2

公开(公告)日：2007-03-27

申请号：US10097942

申请日：2002-03-15

申请人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

发明人： Mark Dale ,  David Hartman ,  Anders Hebsgaard

IPC分类号： H04H1/00

CPC分类号： H04J3/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L27/2604

摘要： A downstream adaptive modulation system and method. The downstream adaptive modulation system comprises a wireless access termination system and one or more wireless modems. The wireless access termination system includes a plurality of queues and a parser. The parser parses data traffic onto the plurality of queues. Each queue is associated with a different coding and modulation scheme. Each of the one or more wireless modems receives data traffic from the plurality of queues based on the wireless modem's ability to demodulate and decode the signal from each of the plurality of queues. When a wireless modem experiences a change in signal strength, the present invention enables the wireless modem to adapt to data from other queues to compensate for the change in signal strength. Thus, if the signal strength improves over a period of time, the wireless modem may receive data at a higher order modulation and FEC code rate. If the signal strength weakens over a period of time, the wireless modem may receive data at a lower order modulation and FEC code rate.

摘要翻译： 一种下行自适应调制系统及方法。 下行自适应调制系统包括无线接入终端系统和一个或多个无线调制解调器。 无线接入终端系统包括多个队列和解析器。 解析器将数据流量分析到多个队列上。 每个队列与不同的编码和调制方案相关联。 一个或多个无线调制解调器中的每一个基于无线调制解调器解调和解码来自多个队列中的每一个的信号的能力，从多个队列中接收数据业务。 当无线调制解调器经历信号强度的变化时，本发明使得无线调制解调器能够适应来自其他队列的数据以补偿信号强度的变化。 因此，如果信号强度在一段时间内改善，则无线调制解调器可以以较高阶调制和FEC码率接收数据。 如果信号强度在一段时间内衰减，则无线调制解调器可以以较低阶调制和FEC码率接收数据。

公开(公告)号：US20050094632A1

公开(公告)日：2005-05-05

申请号：US10698055

申请日：2003-10-30

申请人： Anders Hebsgaard ,  Mark Dale

发明人： Anders Hebsgaard ,  Mark Dale

IPC分类号： H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L1/0083 ,  H04L1/1614 ,  H04L1/1671 ,  H04L1/1809 ,  H04W74/00 ,  H04W80/02 ,  H04W99/00

摘要： An apparatus and method of the present invention includes implementing an automatic repeat request (ARQ) protocol in a DOCSIS wireless environment for fixed wireless applications. More specifically, an ARQ protocol is implemented at the medium access control (MAC) layer to provide fast response relative to convention ARQ protocols and logic that are implemented at higher layers (e.g., TCP/IP) in the OSI layered approach to system architecture and design. To achieve this result, a DOCSIS defined signal and header is modified to include an ARQ header containing various ARQ parameters. While some known approaches to ARQ involve retransmission of entire frames or blocks, the present invention contemplates provide control down to the packet data unit (PDU) level. To achieve this level of granularity, the ARQ header includes sequence numbers within each ARQ header. Accordingly, a transmitter re-transmits a lost transmission whenever it receives a “non-acknowledge” signal advising it of the failure and of the identity of the missing PDU.

摘要翻译： 本发明的装置和方法包括在用于固定无线应用的DOCSIS无线环境中实现自动重传请求（ARQ）协议。 更具体地说，在介质访问控制（MAC）层上实现ARQ协议，以提供相对于在OSI分层方法到系统架构的较高层（例如TCP / IP）上实现的常规ARQ协议和逻辑的快速响应， 设计。 为了实现该结果，修改DOCSIS定义的信号和报头以包括包含各种ARQ参数的ARQ报头。 虽然ARQ的一些已知方法涉及整个帧或块的重传，但是本发明设想提供对分组数据单元（PDU）级别的控制。 为了达到这个粒度级别，ARQ头包括每个ARQ头内的序列号。 因此，当发送器收到“未确认”信号以通知故障和丢失的PDU的身份时，发送器重新发送丢失的发送。

公开(公告)号：US07606188B2

公开(公告)日：2009-10-20

申请号：US11633630

申请日：2006-12-05

申请人： Mark Dale ,  David Hartman ,  Dorothy Lin ,  Rocco Brescia ,  Alan Gin ,  Ravi Bhaskaran ,  Jen-chieh Chien ,  Adel Fanous

发明人： Mark Dale ,  David Hartman ,  Dorothy Lin ,  Rocco Brescia ,  Alan Gin ,  Ravi Bhaskaran ,  Jen-chieh Chien ,  Adel Fanous

IPC分类号： H04B7/212

CPC分类号： H04B7/18523

摘要： Satellite communications are carried out using the Data Over Cable Interface Specification (DOCSIS). Satellite modems are notified of upstream channel congestion by inserting a congestion notification message in a medium access protocol (MAP) message for the upstream channel. Specifically, the congestion notification message is inserted in an unused field of the MAP message, such as the explicit congestion notification (ECN) field. The MAP message can also carry other characteristics of the upstream channel, including priority threshold, multicast access burst availability, and available bandwidth.

摘要翻译： 卫星通信使用数据通过电缆接口规范（DOCSIS）进行。 通过在上游信道的媒体接入协议（MAP）消息中插入拥塞通知消息，向卫星调制解调器通知上行信道拥塞。 具体地说，将拥塞通知消息插入MAP消息的未使用字段中，例如显式拥塞通知（ECN）字段。 MAP消息还可以携带上行信道的其他特性，包括优先权阈值，组播接入突发可用性和可用带宽。

公开(公告)号：US20050249315A1

公开(公告)日：2005-11-10

申请号：US11166540

申请日：2005-06-23

申请人： David Hartman ,  Mark Dale

发明人： David Hartman ,  Mark Dale

IPC分类号： H04J3/06 ,  H04L12/28 ,  H04L12/56 ,  H03D3/24

CPC分类号： H04W56/00 ,  H04J3/0632 ,  H04J3/0685 ,  H04L12/2801 ,  H04L27/2613 ,  H04L27/2656

摘要： In one aspect the present invention describes an electronic circuit for transmitting voice packet data over a wireless network with an upstream transmission mode and a downstream transmission mode. The circuit comprises a first phase-lock loop (PLL) for locking a first clock to a time stamp signal, wherein the first clock synchronizes upstream data transmission over the wireless network; and a second PLL for locking a second clock to the time stamp signal, wherein the second clock is used for sampling voice data for downstream voice data transmission over the wireless network.