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1. 发明授权

US08411774B2 Method and apparatus to support scalability in a multicarrier network 失效
标题翻译：支持多载波网络中的可扩展性的方法和装置
公开(公告)号：US08411774B2
公开(公告)日：2013-04-02
申请号：US13230330
申请日：2011-09-12
申请人： Eric A. Jacobsen , Jeff Foerster , Dan Dahle
发明人： Eric A. Jacobsen , Jeff Foerster , Dan Dahle
IPC分类号： H04L27/28
CPC分类号： H04L27/2602 , H04L5/023 , H04L27/2608
摘要： A multicarrier communication device using orthogonal frequency division multiplexing (OFDM) symbols can vary the number of subcarriers being used on multicarrier communication within a network, based on a predetermined criterion and capability information. The capability information can include a data file, which indicates portions of an electromagnetic spectrum for which regulatory body licenses are currently obtained for a network cell. Alternatively, the capability information can include capability information about the wireless devices in communication with the multicarrier communication device, where the capability information for each wireless device includes device power limitations, device bandwidth width limitations, or which subcarriers a wireless device is capable of using.
摘要翻译：使用正交频分复用（OFDM）符号的多载波通信设备可以基于预定标准和能力信息来改变在网络内的多载波通信上使用的子载波的数量。能力信息可以包括数据文件，其指示当前为网络小区获得监管机构许可证的电磁频谱的部分。或者，能力信息可以包括关于与多载波通信设备通信的无线设备的能力信息，其中每个无线设备的能力信息包括设备功率限制，设备带宽宽度限制，或无线设备能够使用哪些子载波。

2. 发明申请

US20130077661A1 BASE STATION AND METHOD FOR CHANNEL CODING AND LINK ADAPTATION 有权
标题翻译：基站和通道编码和链路适配方法
公开(公告)号：US20130077661A1
公开(公告)日：2013-03-28
申请号：US13680387
申请日：2012-11-19
申请人： Eric A. Jacobsen , Adrian P. Stephens
发明人： Eric A. Jacobsen , Adrian P. Stephens
IPC分类号： H04W72/04
CPC分类号： H04W72/0473 , H04B7/086 , H04L1/0002 , H04L1/0003 , H04L1/0009 , H04L1/0017 , H04L5/0023 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L27/0008 , H04L27/2602 , H04W16/28 , H04W52/08 , H04W52/20 , H04W52/242 , H04W52/262 , H04W52/42 , H04W88/08
摘要： A base station is arranged for performing channel coding and link adaptation. The base station comprises one or more processors and physical layer circuitry arranged to decode symbols received from a user station to determine an error rate, the symbols received through a plurality of antennas, receive signaling from the user station, the signaling including channel quality information for channel resources of an orthogonal frequency division multiplexed (OFDM) channel, select a modulation and coding rate for transmission of symbols to the user station based at least in part on the error rate, and transmit a transmit power control command to the user station, the transmit power control command based at least in part on a downlink path loss estimate. The base station may also transmit additional transmit power control commands to the user station based on the error rate of subsequently decoded symbols. The transmit power control command may be selected for channel resources that are allocated to the user station, the channel resources comprising a group of subcarriers having an initially selected modulation and coding rate.
摘要翻译：基站被配置为执行信道编码和链路适配。基站包括一个或多个处理器和物理层电路，其被布置为对从用户站接收的符号进行解码以确定错误率，通过多个天线接收到的符号，从用户站接收信令，该信令包括用于正交频分多路复用（OFDM）信道的信道资源，至少部分地基于错误率，选择用于向用户站发送符号的调制和编码率，并向用户站发送发送功率控制命令，至少部分地基于下行链路路径损耗估计来发送功率控制命令。基站还可以基于随后解码的符号的错误率向用户站发送附加的发射功率控制命令。可以为分配给用户站的信道资源选择发射功率控制命令，信道资源包括具有最初选择的调制和编码速率的一组子载波。

3. 发明申请

US20100195545A1 SYSTEMS AND METHODS FOR ADAPTIVE BIT LOADING IN A MULTIPLE ANTENNA ORTHOGONAL FREQUENCY DIVISION MULTIPLEXED COMMUNICATION SYSTEM 有权
标题翻译：在多个天线正交频分多址通信系统中自适应加载的系统和方法
公开(公告)号：US20100195545A1
公开(公告)日：2010-08-05
申请号：US12757117
申请日：2010-04-09
申请人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S. Sadri
发明人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S. Sadri
IPC分类号： H04J3/00
CPC分类号： H04W16/28 , H04B7/0408 , H04L27/2602 , H04W74/02
摘要： An embodiment of the present invention provides a method of supporting multiple protocols in a wireless network operating according to an Institute for Electronic and Electrical Engineers IEEE) 802.16 standard, comprising adding a new convergence sub layer (CS) type in which an extra field is added to an 802.16 service data unit (SDU) to indicate which higher layer protocol is carried in a 802.16 SDU payload.
摘要翻译：本发明的实施例提供了一种在根据电子和电气工程师协会IEEE 802.16标准操作的无线网络中支持多个协议的方法，其包括添加新的会聚子层（CS）类型，其中添加了额外的字段到802.16服务数据单元（SDU）以指示在802.16 SDU有效载荷中携带哪个更高层协议。

4. 发明申请

US20080198760A1 TRAINED DATA TRANSMISSION FOR COMMUNICATION SYSTEMS 有权
标题翻译：用于通信系统的培训数据传输
公开(公告)号：US20080198760A1
公开(公告)日：2008-08-21
申请号：US12109002
申请日：2008-04-24
申请人： Adrian P. Stephens , Eric A. Jacobsen , Duncan M. Kitchin , Sumeet Sandhu
发明人： Adrian P. Stephens , Eric A. Jacobsen , Duncan M. Kitchin , Sumeet Sandhu
IPC分类号： G06F11/00 , H04B7/00
CPC分类号： H04W72/04 , H04W72/08 , H04W72/14 , H04W74/08
摘要： Various embodiments are described for a trained data transmission for communication systems.
摘要翻译：针对通信系统的训练数据传输描述了各种实施例。

5. 发明授权

US07260361B2 Locating interfering devices in wireless networks using channel adaptation metrics 有权
标题翻译：使用信道适应度量来定位无线网络中的干扰设备
公开(公告)号：US07260361B2
公开(公告)日：2007-08-21
申请号：US10748867
申请日：2003-12-29
申请人： Eric A. Jacobsen
发明人： Eric A. Jacobsen
IPC分类号： H04B1/00 , H04B15/00
CPC分类号： H04L1/0025 , H04L27/2608
摘要： A method, apparatus and system relate to detecting an interfering device in a wireless network such as a wireless local area network (WLAN). In wireless networks using orthogonal frequency division multiplexing (OFDM) and adaptive bit loading (ABL), adaptive modulation information should be somewhat symmetric in uplink and downlink directions. By comparing modulation adaptations in the uplink and downlink directions of a communication channel between at least two terminals, identified differences can indicate the presence of a potential interferer in the wireless network. A location of the potential interferer can be estimated if a location of one or more network terminals experiencing interference is known or can be determined. An exemplary implementation for a device of the invention may be as an Access Point (AP) in the WLAN.
摘要翻译：一种检测诸如无线局域网（WLAN）的无线网络中的干扰设备的方法，装置和系统。在使用正交频分复用（OFDM）和自适应比特加载（ABL）的无线网络中，自适应调制信息在上行链路和下行链路方向上应该有些对称。通过比较在至少两个终端之间的通信信道的上行链路和下行链路方向上的调制调整，所识别的差异可以指示无线网络中存在潜在的干扰源。如果遇到干扰的一个或多个网络终端的位置是已知的或者可以被确定，则可以估计潜在干扰源的位置。本发明的设备的示例性实现可以是WLAN中的接入点（AP）。

6. 发明申请

US20070180344A1 Techniques for low density parity check for forward error correction in high-data rate transmission 审中-公开
标题翻译：高数据传输中前向纠错低密度奇偶校验技术
公开(公告)号：US20070180344A1
公开(公告)日：2007-08-02
申请号：US11344036
申请日：2006-01-31
申请人： Eric A. Jacobsen , Bo Xia
发明人： Eric A. Jacobsen , Bo Xia
IPC分类号： H03M13/00
CPC分类号： H03M13/1105 , H03M13/635 , H03M13/6513
摘要： A system, apparatus, and method includes a decoder to decode information including a low density parity check (LDPC) codeword received at a node using entries defined in a parity check base matrix. Other embodiments are described and claimed. The system further includes an antenna.
摘要翻译：系统，装置和方法包括解码器，用于解码包括使用在奇偶校验基本矩阵中定义的条目在节点处接收的低密度奇偶校验（LDPC）码字的信息。描述和要求保护其他实施例。该系统还包括天线。

7. 发明授权

US07245880B1 Transmit power control within a wireless transmitter 有权
标题翻译：在无线发射机内发射功率控制
公开(公告)号：US07245880B1
公开(公告)日：2007-07-17
申请号：US09652773
申请日：2000-08-31
申请人： Eric A. Jacobsen
发明人： Eric A. Jacobsen
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04W52/42
摘要： A wireless transmitter system for use in maintaining a wireless link with a remote transceiver includes a beamforming transmit antenna structure and a power control unit for controlling transmit power levels. The system determines the direction of the remote transceiver and then generates a transmit antenna beam in that direction. The power control unit then determines the antenna gain of the generated beam and uses the antenna gain information to adjust the transmit power level of the system so that it does not exceed government mandated limits. In one embodiment, the average transmit duty cycle of the system is also used to adjust transmit power. The system is capable of achieving a maximum transmit power without exceeding applicable power limits.
摘要翻译：用于维护与远程收发器的无线链路的无线发射机系统包括波束成形发射天线结构和用于控制发射功率电平的功率控制单元。系统确定远程收发器的方向，然后在该方向上生成发射天线波束。功率控制单元然后确定所产生的波束的天线增益，并且使用天线增益信息来调整系统的发射功率电平，使得其不超过政府规定的极限。在一个实施例中，系统的平均发射占空比也用于调整发射功率。该系统能够在不超过适用的功率限制的情况下实现最大发射功率。

8. 发明授权

US07213197B2 Adaptive bit loading with low density parity check forward error correction 有权
标题翻译：自适应位加载与低密度奇偶校验前向纠错
公开(公告)号：US07213197B2
公开(公告)日：2007-05-01
申请号：US10749624
申请日：2003-12-30
申请人： Eric A. Jacobsen , Valentine J. Rhodes
发明人： Eric A. Jacobsen , Valentine J. Rhodes
IPC分类号： G06F11/00
CPC分类号： H04L1/0071 , H03M13/1102 , H04L1/0003 , H04L1/004 , H04L1/0057 , H04L5/0007 , H04L5/0046 , H04L5/006 , H04L27/261 , H04W48/18 , H04W84/12
摘要： An apparatus may include an orthogonal frequency division multiplexing (OFDM) physical layer interface. An adaptive subcarrier demodulator or an adaptive subcarrier modulator may be coupled to the OFDM physical layer interface to implement adaptive bit loading (ABL). A decoder or an encoder may be coupled to the adaptive subcarrier demodulator or to the adaptive subcarrier modulator to implement low density parity checking.
摘要翻译：一种装置可以包括正交频分复用（OFDM）物理层接口。自适应子载波解调器或自适应子载波调制器可以耦合到OFDM物理层接口以实现自适应比特加载（ABL）。解码器或编码器可以耦合到自适应子载波解调器或自适应子载波调制器以实现低密度奇偶校验。

9. 发明授权

US08019010B2 OFDM transmitter and method for multi-user MIMO transmissions 有权
标题翻译： OFDM发射机和用于多用户MIMO传输的方法
公开(公告)号：US08019010B2
公开(公告)日：2011-09-13
申请号：US12982161
申请日：2010-12-30
申请人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S Sadri
发明人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S Sadri
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04W16/28 , H04B7/0408 , H04L27/2602 , H04W74/02
摘要： An orthogonal-frequency division multiplexed (OFDM) transmitter is configured to transmit a data unit in accordance with a multiple-input multiple-output (MIMO) technique over a wideband channel comprising a 20 MHz channel and another channel using a plurality of spatially diverse antennas. The transmitter is further configured to include in the data unit, a parameter indicating a modulation and coding scheme and a parameter indicating number of spatial streams. Each of the spatial streams is encoded and beamformed for receipt by one or more different receiving stations.
摘要翻译：正交频分复用（OFDM）发射机被配置为根据多输入多输出（MIMO）技术在包括20MHz信道的宽带信道和使用多个空间多样的天线的另一信道上发送数据单元。发射机还被配置为在数据单元中包括指示调制和编码方案的参数和指示空间流数量的参数。每个空间流被编码并且被波束形成以便由一个或多个不同的接收站接收。

10. 发明授权

US07822135B2 MIMO transmitter and method for transmitting an OFDM symbol in accordance with an IEEE 802.11 communication standard over a plurality of spatial channels 有权
标题翻译： MIMO发射机和用于根据IEEE 802.11通信标准在多个空间信道上发射OFDM符号的方法
公开(公告)号：US07822135B2
公开(公告)日：2010-10-26
申请号：US12482671
申请日：2009-06-11
申请人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S Sadri
发明人： John S. Sadowsky , Minnie Ho , Sumeet Sandhu , Alexander A. Maltsev , Eric A. Jacobsen , Ali S Sadri
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04W16/28 , H04B7/0408 , H04L27/2602 , H04W74/02
摘要： A multiple-input-multiple output (MIMO) transmitter for transmitting an orthogonal frequency division multiplexed (OFDM) symbol over a plurality of spatial channels using a plurality of antennas is described. The transmitter includes encoding circuitry to encode blocks of input bits in accordance with a variable encoding rate to generate blocks of encoded bits and a spatial-frequency parser to parse the blocks of encoded bits into spatial-frequency groups. The transmitter also includes subcarrier modulators to modulate each spatial-frequency group of encoded bits on one of the OFDM subcarriers to generate symbol-modulated subcarriers. Spatial-frequency groups having a greater number of encoded bits are modulated at higher-order modulation levels and spatial-frequency groups having a lesser number of encoded bits are modulated at lower-order modulation orders.
摘要翻译：描述了使用多个天线在多个空间信道上发送正交频分复用（OFDM）符号的多输入多输出（MIMO）发射机。发射机包括编码电路，用于根据可变编码速率对输入比特块进行编码以产生编码比特块和空间频率解析器，以将编码比特的块解析为空间频率组。发射机还包括子载波调制器，以调制OFDM子载波之一上的编码比特的每个空间频率组，以产生符号调制的副载波。具有更多数量的编码比特的空间频率组在高阶调制级别被调制，并且具有较少编码比特数的空间频率组以低阶调制阶调制。

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